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Sample records for chemistry unit quarterly

  1. Applied Meteorology Unit (AMU) Quarterly Report First Quarter FY-04

    NASA Technical Reports Server (NTRS)

    Bauman, William; Wheeler, Mark; Labert, Winifred; Jonathan Case; Short, David

    2004-01-01

    This report summarizes the Applied Meteorology Unit (AMU) activities for the First Quarter of Fiscal Year 2004 (October - December 2003). Tasks reviewed are: (1) Objective Lightning Probability Forecast, (2) Mesonet Temperature and Wind Climatology, (3) Severe Weather Forecast Decision Aid and (4) Anvil Transparency Relationship to Radar Reflectivity

  2. Applied Meteorology Unit (AMU) Quarterly Report Fourth Quarter FY-04

    NASA Technical Reports Server (NTRS)

    Bauman, William; Wheeler, Mark; Lambert, Winifred; Case, Jonathan; Short, David

    2004-01-01

    This report summarizes the Applied Meteorology Unit (A MU) activities for the fourth quarter of Fiscal Year 2004 (July -Sept 2004). Tasks covered are: (1) Objective Lightning Probability Forecast: Phase I, (2) Severe Weather Forecast Decision Aid, (3) Hail Index, (4) Shuttle Ascent Camera Cloud Obstruction Forecast, (5) Advanced Regional Prediction System (ARPS) Optimization and Training Extension and (5) User Control Interface for ARPS Data Analysis System (ADAS) Data Ingest.

  3. Applied Meteorology Unit (AMU) Quarterly Report. First Quarter FY-05

    NASA Technical Reports Server (NTRS)

    Bauman, William; Wheeler, Mark; Lambert, Winifred; Case, Jonathan; Short, David

    2005-01-01

    This report summarizes the Applied Meteorology Unit (AMU) activities for the first quarter of Fiscal Year 2005 (October - December 2005). Tasks reviewed include: (1) Objective Lightning Probability Forecast: Phase I, (2) Severe Weather Forecast Decision Aid, (3) Hail Index, (4) Stable Low Cloud Evaluation, (5) Shuttle Ascent Camera Cloud Obstruction Forecast, (6) Range Standardization and Automation (RSA) and Legacy Wind Sensor Evaluation, (7) Advanced Regional Prediction System (ARPS) Optimization and Training Extension, and (8) User Control Interface for ARPS Data Analysis System (ADAS) Data Ingest

  4. Applied Meteorology Unit (AMU) Quarterly Report Third Quarter FY-08

    NASA Technical Reports Server (NTRS)

    Bauman, William; Crawford, Winifred; Barrett, Joe; Watson, Leela; Dreher, Joseph

    2008-01-01

    This report summarizes the Applied Meteorology Unit (AMU) activities for the third quarter of Fiscal Year 2008 (April - June 2008). Tasks reported on are: Peak Wind Tool for User Launch Commit Criteria (LCC), Anvil Forecast Tool in AWIPS Phase II, Completion of the Edward Air Force Base (EAFB) Statistical Guidance Wind Tool, Volume Averaged Height Integ rated Radar Reflectivity (VAHIRR), Impact of Local Sensors, Radar Scan Strategies for the PAFB WSR-74C Replacement, VAHIRR Cost Benefit Analysis, and WRF Wind Sensitivity Study at Edwards Air Force Base

  5. Applied Meteorology Unit (AMU) Quarterly Report - Fourth Quarter FY-09

    NASA Technical Reports Server (NTRS)

    Bauman, William; Crawford, Winifred; Barrett, Joe; Watson, Leela; Wheeler, Mark

    2009-01-01

    This report summarizes the Applied Meteorology Unit (AMU) activities for the fourth quarter of Fiscal Year 2009 (July - September 2009). Tasks reports include: (1) Peak Wind Tool for User Launch Commit Criteria (LCC), (2) Objective Lightning Probability Tool. Phase III, (3) Peak Wind Tool for General Forecasting. Phase II, (4) Update and Maintain Advanced Regional Prediction System (ARPS) Data Analysis System (ADAS), (5) Verify MesoNAM Performance (6) develop a Graphical User Interface to update selected parameters for the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLlT)

  6. Phoenix's Wet Chemistry Laboratory Units

    NASA Technical Reports Server (NTRS)

    2008-01-01

    This image shows four Wet Chemistry Laboratory units, part of the Microscopy, Electrochemistry, and Conductivity Analyzer (MECA) instrument on board NASA's Phoenix Mars Lander. This image was taken before Phoenix's launch on August 4, 2007.

    The Phoenix Mission is led by the University of Arizona, Tucson, on behalf of NASA. Project management of the mission is by NASA's Jet Propulsion Laboratory, Pasadena, Calif. Spacecraft development is by Lockheed Martin Space Systems, Denver.

  7. Emphasizing Mineral Chemistry in an Analytical Chemistry Unit.

    ERIC Educational Resources Information Center

    Dunn, Jeffrey G.; And Others

    1995-01-01

    Describes an analytical chemistry unit in the second year of the chemistry degree course at Curtin University that was designed to reflect the numerous employment opportunities for chemistry graduates in the mineral processing industries and private analytical laboratories. Presents the lecture syllabus, the laboratory course description, and…

  8. Applied Meteorology Unit (AMU) Quarterly Report - Fourth Quarter FY-10

    NASA Technical Reports Server (NTRS)

    Bauman, William; Crawford, Winifred; Barrett, Joe; Watson, Leela; Wheeler, Mark

    2010-01-01

    Three AMU tasks were completed in this Quarter, each resulting in a forecast tool now being used in operations and a final report documenting how the work was done. AMU personnel completed the following tasks (1) Phase II of the Peak Wind Tool for General Forecasting task by delivering an improved wind forecasting tool to operations and providing training on its use; (2) a graphical user interface (GUI) she updated with new scripts to complete the ADAS Update and Maintainability task, and delivered the scripts to the Spaceflight Meteorology Group on Johnson Space Center, Texas and National Weather Service in Melbourne, Fla.; and (3) the Verify MesoNAM Performance task after we created and delivered a GUI that forecasters will use to determine the performance of the operational MesoNAM weather model forecast.

  9. Applied Meteorology Unit (AMU) Quarterly Report

    NASA Technical Reports Server (NTRS)

    Bauman, William; Crawford, Winifred; Watson, Leela; Wheeler, Mark

    2011-01-01

    This Quarter's Highlights include reports on the following tasks: (1) Mr. Wheeler completed a study for the 30th Weather Squadron at Vandenberg Air Force Base in California in which he found precursors in weather observations that will help the forecasters determine when they will get strong wind gusts at their northern towers. The final report is now on the AMU website at http://science.ksc.nasa.gov/amu/final-reports/30ws-north-base-winds.pdf. (2) continued work on the second phase of verifying the performance of the MesoNAM weather model at Kennedy Space Center (KSC) and Cape Canaveral Air Force Station (CCAFS). (3) continued work to improve the AMU peak wind tool by analyzing wind tower data to determine peak wind behavior during times of onshore and offshore flow. (4) continued updating lightning c1imatologies for KSC/CCAFS and other airfields around central Florida and created new c1imatologies for moisture and stability thresholds.

  10. 75 FR 10345 - Pricing for 2010 United States Mint America the Beautiful Quarters Proof Set, etc.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-05

    ...; 2010 United States Mint America the Beautiful Quarters Silver Proof Set; 2010 United States Mint Uncirculated Coin Set; 2010 United States Mint Proof Set; and 2010 United States Mint Silver Proof Set. The... United States Mint America the Beautiful Quarters Silver Proof Set will be priced at $32.95. The...

  11. 76 FR 15047 - Pricing for 2010 United States Mint America the Beautiful Quarters Silver Proof SetTM

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-18

    ... United States Mint Pricing for 2010 United States Mint America the Beautiful Quarters Silver Proof Set\\TM\\, etc. ACTION: Pricing for 2010 United States Mint America the Beautiful Quarters Silver Proof Set TM ; 2010 United States Mint Silver Proof Set TM ; 2011 United States Mint America the Beautiful...

  12. 78 FR 30398 - Re-pricing of the 2012 and 2013 United States America the Beautiful Quarters Silver Proof Set...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-22

    ... United States Mint Re-pricing of the 2012 and 2013 United States America the Beautiful Quarters Silver Proof Set , 2013 United States Mint Silver Proof Set , and 2013 United States Mint Congratulations Set... Silver Proof Set, the 2013 United States Mint Silver Proof Set, and the 2013 United States...

  13. Advanced direct liquefaction concepts for PETC generic units. Quarterly technical progress report, July 1992--September 1992

    SciTech Connect

    Not Available

    1992-11-01

    Preparation of the baseline economic assessment, based on Wilsonville Run {number_sign}263J, continued. This baseline study will serve as the reference against which the results of this program will be compared. During the quarter calculation of the material and energy balances for the conceptual commercial plant were completed and estimation of the investment for the main process units was begun (Wyoming plant site basis). A presentation on the technical results of the baseline study was prepared and delivered at the Quarterly Project Review Meeting in Pittsburgh.

  14. Data validation report for the 100-KR-4 operable unit first quarter, 1994

    SciTech Connect

    Krug, A.D.

    1994-07-01

    Samples were obtained from the 100-KR-4 Operable Unit first Quarter 1994 Groundwater Sampling event. The data from the chemical analysis of fifty-eight samples from this sampling event and their related quality assurance samples were reviewed and validated to verify that reported samples results were of sufficient quality to support decisions regarding remedial actions performed at this site. Information fro the sampling event and the information validation processes are presented in this document.

  15. Independent Learning Project for Advanced Chemistry (ILPAC). Teachers' and Technicians' Notes for First Year Units.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    The Independent Learning Project for Advanced Chemistry (ILPAC) has produced units of study for students in A-level chemistry. Students completing ILPAC units assume a greater responsibility for their own learning and can work, to some extent, at their own pace. By providing guidance, and detailed solutions to exercises in the units, supported by…

  16. The single electron chemistry of coals. Quarterly report, October 1, 1993--December 31, 1993

    SciTech Connect

    Larsen, J.W.; Rothenberg, S.E.

    1994-08-01

    The objective of this work is to investigate and characterize the single electron reactions of alkyl and alkoxy aromatic compounds in order to determine the role these reactions play in the chemistry of coal. The work here is concerned with the interactions of coals, such as Illinois No. 6, with tetracyanoethylene.

  17. The single electron chemistry of coals. Quarterly report, January 1, 1994--March 31, 1994

    SciTech Connect

    Larsen, J.W.; Rothenberg, S.E.

    1994-08-01

    The objective of this work is to investigate and characterize the single electron reactions of alkyl and alkoxy aromatic compounds in order to determine the role these reactions play in the chemistry of coal. The work here is concerned with the interactions of coals, such as Illinois No. 6, with tetracyanoethylene.

  18. Recent Developments in Teaching Chemistry in the United Kingdom, II.

    ERIC Educational Resources Information Center

    Hudson, M. J.

    1982-01-01

    Reviews developments in chemistry curriculum/instruction, providing lists of chemistry cassettes, monographs, educational literature from the Royal Society of Chemistry, new teaching packages, and course materials for science in society. Extends information presented in a previous article (EJ 235 051) appearing in this journal. (JN)

  19. 78 FR 5167 - BE-9: Quarterly Survey of Foreign Airline Operators' Revenues and Expenses in the United States

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-24

    ... Bureau of Economic Analysis XRIN 0691-XC003 BE-9: Quarterly Survey of Foreign Airline Operators' Revenues... Foreign Airline Operators' Revenues and Expenses in the United States (BE-9). This mandatory survey is..., agents, or other representatives of foreign airline operators that transport passengers or freight...

  20. The single electron chemistry of coals. [Quarterly report], April 1--June 30, 1993

    SciTech Connect

    Larsen, J.W.; Rothenberg, S.E.

    1993-11-01

    Objective was to investigate the single electron reactions of alkyl and alkoxy aromatic compounds and the role of these reactions in the chemistry of coal. During this period, the reactions of Illinois No. 6 coal with tetracyanoethylene (TCNE) was studied using diffuse reflectance infrared spectra. Results showed that no chemical reaction occurred, either Diels-Alder or addition, even at 180 C; TCNE`s lowest unoccupied molecular orbital was still occupied 2/3 of an electron transferred by Illinois No. 6 coal.

  1. Teaching Chemistry in the United States, Post-9/11

    ERIC Educational Resources Information Center

    Benvenuto, Mark A.; Mio, Matthew J.

    2005-01-01

    Since the birth of chemistry as a discipline in the 19th century, chemists have always been the "bomb-makers." Traditionally, this has been part of the allure for students for the "central science." Even students who will never be scientists consider chemistry for their science elective in part because chemists are the ones who…

  2. Coal transformation chemistry. First quarterly progress report, March 1, 1980-May 31, 1980

    SciTech Connect

    Stock, Leon M.; Alemany, L. B.; Handy, C. I.; King, H. -H.

    1980-01-01

    Considerable progress has been made on the development of a convenient procedure for the alkylation of Illinois No. 6 coal in liquid ammonia. The results are presented in summary in Section IIIB, Task 1 and in more detail in Section IVB. Work on the chemistry of the liquefaction reaction has led to the conclusion that phenolic compounds participate in free radical reactions in hydrogen donor solvents. Phenolic compounds and benzoic acid derivatives do not function as acid catalysts in their reactions with tetralin and other representative compounds. In addition, the reaction of styrene with tetralin at 400/sup 0/C has been shown to be a complex process involving rather deepseated chemical transformations. The results are presented in summary in Section IIIB, Task 3 and in more detail in Section IVC.

  3. 78 FR 11140 - BE-605: Quarterly Survey of Foreign Direct Investment in the United States-Transactions of U.S...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-15

    ... Bureau of Economic Analysis XRIN 0691-XC011 BE-605: Quarterly Survey of Foreign Direct Investment in the United States--Transactions of U.S. Affiliate With Foreign Parent AGENCY: Bureau of Economic Analysis... Analysis is informing the public that it is conducting the mandatory survey titled BE-605, Quarterly...

  4. Wald's entropy is equal to a quarter of the horizon area in units of the effective gravitational coupling

    SciTech Connect

    Brustein, Ram; Gorbonos, Dan; Hadad, Merav

    2009-02-15

    The Bekenstein-Hawking entropy of black holes in Einstein's theory of gravity is equal to a quarter of the horizon area in units of Newton's constant. Wald has proposed that in general theories of gravity the entropy of stationary black holes with bifurcate Killing horizons is a Noether charge which is in general different from the Bekenstein-Hawking entropy. We show that the Noether charge entropy is equal to a quarter of the horizon area in units of the effective gravitational coupling on the horizon defined by the coefficient of the kinetic term of a specific metric perturbation polarization on the horizon. We present several explicit examples of static spherically symmetric black holes.

  5. Graduate Study in Chemistry in the United States: A Guide for Non-U.S. Students.

    ERIC Educational Resources Information Center

    Grace, Judy Diane; Fernando, Quintus

    A guide to help students from other countries pursue graduate education in chemistry in the United States is presented. The process of gaining admission to U.S. universities is emphasized, and the nature of graduate education is briefly explained. It is noted that students majoring in chemistry are expected to have a sound background in…

  6. Hydrocarbons. Independent Learning Project for Advanced Chemistry (ILPAC). Unit O1.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    This unit on hydrocarbons is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit is divided into sections dealing with alkanes, alkenes, alkynes, arenes, and several aspects of the petroleum industry. Two experiments, exercises (with answers), and pre- and post-tests are included.…

  7. Atomic Structure. Independent Learning Project for Advanced Chemistry (ILPAC). Unit S2.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    This unit on atomic structure is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit consists of two levels. Level one focuses on the atomic nucleus. Level two focuses on the arrangement of extranuclear electrons, approaching atomic orbitals through both electron bombardment and spectra.…

  8. The Halogens. Independent Learning Project for Advanced Chemistry (ILPAC). Unit I2.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    This unit is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit, which consists of two levels, focuses on the elements and compounds of Group IV (halogens) of the periodic table. Level one deals with the physical and chemical properties of the individual elements. Level two considers…

  9. Bonding and Structure. Independent Learning Project for Advanced Chemistry (ILPAC). Unit S4.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    This unit on chemical bonding is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit, which consists of two levels, provides an introduction to the main types of chemical bonding and important aspects of structure. The main emphasis is placed on such topics as ionic and covalent bonding,…

  10. s-Block Elements. Independent Learning Project for Advanced Chemistry (ILPAC). Unit I1.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    This unit is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit, which consists of two sections and an appendix, focuses on the elements and compounds of Groups I and II (the s-block) of the periodic table. The groups are treated concurrently to note comparisons between groups and to…

  11. Chemical Energetics. Independent Learning Project for Advanced Chemistry (ILPAC). Unit S3.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    This unit on chemical energetics is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit, which consists of two levels, provides a clear yet detailed and thorough introduction to the topic. Level one extends ideas from previous courses, introduces and emphasizes the importance of Hess'…

  12. The Gaseous State. Independent Learning Project for Advanced Chemistry (ILPAC). Unit P1.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    This unit on the gaseous state is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit consists of two levels. Level one deals with the distinctive characteristics of gases, then considers the gas laws, in particular the ideal gas equation and its applications. Level two concentrates on…

  13. Equilibrium I: Principles. Independent Learning Project for Advanced Chemistry (ILPAC). Unit P2.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    This unit on the principles of equilibrium is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit consists of two levels. After a treatment of non-mathematical aspects in level one (the idea of a reversible reaction, characteristics of an equilibrium state, the Le Chatelier's principle),…

  14. The Mole. Independent Learning Project for Advanced Chemistry (ILPAC). Unit S1.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    This unit on the mole is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit, designed to help students consolidate some of the ideas about the mole learned in previous courses, consists of two levels. The first level focuses on: (1) relative mass; (2) the concept of the mole as the unit…

  15. Equilibrium II: Acids and Bases. Independent Learning Project for Advanced Chemistry (ILPAC). Unit P3.

    ERIC Educational Resources Information Center

    Inner London Education Authority (England).

    This unit on equilibrium is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit, which consists of two levels, focuses on the application of equilibrium principles to equilibria involving weak acids and bases, including buffer solutions and indicators. Level one uses Le Chatelier's…

  16. Chemistry and structure of coal derived asphaltenes and preasphaltenes. Quarterly progress report, April-June 1980

    SciTech Connect

    Yen, T. F.

    1980-01-01

    It is the objective of this project to isolate the asphaltene and preasphaltene fractions from coal liquids from a number of liquefaction processes. These processes consist of in general: catalytic hydrogenation, staged pyrolysis and solvent refining. These asphaltene fractions may be further separated by both gradient elution through column chromatography, and molecular size distribution through gel permeation chromatography. Those coal-derived asphaltene and preasphaltene fractions will be investigated by various chemical and physical methods for characterization of their structures. After the parameters are obtained, these parameters will be correlated with the refining and conversion variables which control a given type of liquefaction process. The effects of asphaltene in catalysis, ash or metal removal, desulfurization and denitrification will also be correlated. It is anticipated that understanding the role of asphaltenes in liquefaction processes will enable engineers to both improve existing processes, and to make recommendations for operational changes in planned liquefaction units in the United States. The objective of Phase 1 was to complete the isolation and separation of coal liquid fractions and to initiate their characterization. The objective of Phase 2 is to continue the characterization of coal asphaltenes and other coal liquid fractions by use of physical and instrumental methods. The structural parameters obtained will be used to postulate hypothetical average structures for coal liquid fractions. The objective of Phase 3 is to concentrate on the characterization of the preasphaltene (benzene insoluble fraction) of coal liquid fraction by the available physical and chemical methods to obtain a number of structural parameters.

  17. Quantitative analysis of terrain units mapped in the northern quarter of Venus from Venera 15/16 data

    NASA Technical Reports Server (NTRS)

    Schaber, G. G.

    1991-01-01

    The contacts between 34 geological/geomorphic terrain units in the northern quarter of Venus mapped from Venera 15/16 data were digitized and converted to a Sinusoidal Equal-Area projection. The result was then registered with a merged Pioneer Venus/Venera 15/16 altimetric database, root mean square (rms) slope values, and radar reflectivity values derived from Pioneer Venus. The resulting information includes comparisons among individual terrain units and terrain groups to which they are assigned in regard to percentage of map area covered, elevation, rms slopes, distribution of suspected craters greater than 10 km in diameter.

  18. 75 FR 10561 - Pricing for 2010 United States Mint America the Beautiful QuartersTM

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-08

    ... States Mint America the Beautiful Quarters Two-Roll Sets, featuring Hot Springs National Park... Mint facilities at Philadelphia and Denver. The first set, featuring Hot Springs National Park, will be... featuring Hot Springs National Park, Yellowstone National Park, Yosemite National Park, Grand...

  19. Effects of sulfur dioxide emissions on stream chemistry in the western United States

    USGS Publications Warehouse

    Campbell, D.H.; Turk, J.T.

    1988-01-01

    A 20-year record of water chemistry for seven headwater streams in the Rocky Mountain region of the western United States is compared to estimates of local and regional sulfur dioxide emissions. Emissions from smelters comprise a significant part of sulfur dioxide emissions for the 11 states upwind of acid-sensitive watersheds in the Rocky Mountains, but smelter emissions have steadily decreased since 1970. Analysis of stream chemistry indicates conservative behavior of watershed sulfate, with atmospheric deposition as the dominant source. No relation between regional stream chemistry and smelter or regional sulfur dioxide emissions is detected. Local emissions trends, however, do appear to affect sulfate concentrations in the streams. -from Authors

  20. Reporting unit size and measurement uncertainty: current Australian practice in clinical chemistry and haematology.

    PubMed

    Hawkins, Robert C; Badrick, Tony

    2015-08-01

    In this study we aimed to compare the reporting unit size used by Australian laboratories for routine chemistry and haematology tests to the unit size used by learned authorities and in standard laboratory textbooks and to the justified unit size based on measurement uncertainty (MU) estimates from quality assurance program data. MU was determined from Royal College of Pathologists of Australasia (RCPA) - Australasian Association of Clinical Biochemists (AACB) and RCPA Haematology Quality Assurance Program survey reports. The reporting unit size implicitly suggested in authoritative textbooks, the RCPA Manual, and the General Serum Chemistry program itself was noted. We also used published data on Australian laboratory practices.The best performing laboratories could justify their chemistry unit size for 55% of analytes while comparable figures for the 50% and 90% laboratories were 14% and 8%, respectively. Reporting unit size was justifiable for all laboratories for red cell count, >50% for haemoglobin but only the top 10% for haematocrit. Few, if any, could justify their mean cell volume (MCV) and mean cell haemoglobin concentration (MCHC) reporting unit sizes.The reporting unit size used by many laboratories is not justified by present analytical performance. Using MU estimates to determine the reporting interval for quantitative laboratory results ensures reporting practices match local analytical performance and recognises the inherent error of the measurement process.

  1. Superacid Catalyzed Coal Conversion Chemistry. 1st and 2nd Quarterly Technical Progress Reports, September 1, 1983-March 30, 1984.

    DOE R&D Accomplishments Database

    Olah, G. A.

    1984-01-01

    In our laboratories we have previously developed a mild coal conversion process. This involves the use of a superacid system consisting of HF and BF{sub 3} in presence of hydrogen and/or a hydrogen donor solvent. In order to understand the chemistry involved in the process of depolymerization of coal by the HF:BF{sub 3}:H{sub 2} system we are carrying out a systematic study of a number of coal model compounds. The model compounds selected for present study have two benzene rings connected with various bridging units such as alkylidene, ether, sulfide etc. From studies so far carried out it appears that high pyridine extractibilities achieved by treating coal at temperature below 100 degrees C results from the cleavage of bridges such as present in bibenzyl, diphenyl methane, dibenzyl ether, dibenzyl sulfide etc. On the other hand the increased cyclohexane extractibility and distillability observed at relatively higher temperatures and hydrogen pressures reflects the hydrogenation and cleavage of the aromatic backbone in coal structure similar to what is seen in the conversion of model compounds such as biphenyl, diphenyl ether, diphenyl sulfide, anthracene, etc.

  2. Perceived Difficulty of Chemistry Units in Std IX for Students in Kerala Stream Calls for Further Innovations

    ERIC Educational Resources Information Center

    Gafoor, Kunnathodi Abdul; Shilna, V.

    2013-01-01

    Chemistry is widely perceived as difficult. Specialized language, mathematical and abstract conceptual nature, and the amount of content are often cited reasons. Researchers have been trying to explain how students should be helped in learning chemistry better. This paper reports the results of a survey to identify the chemistry units in standard…

  3. Barriers to the implementation of green chemistry in the United States.

    PubMed

    Matus, Kira J M; Clark, William C; Anastas, Paul T; Zimmerman, Julie B

    2012-10-16

    This paper investigates the conditions under which firms are able to develop and implement innovations with sustainable development benefits. In particular, we examine "green chemistry" innovations in the United States. Via interviews with green chemistry leaders from industry, academia, nongovernmental institutions (NGOs), and government, we identified six major categories of challenges commonly confronted by innovators: (1) economic and financial, (2) regulatory, (3) technical, (4) organizational, (5) cultural, and (6) definition and metrics. Further analysis of these barriers shows that in the United States, two elements of these that are particular to the implementation of green chemistry innovations are the absence of clear definitions and metrics for use by researchers and decision makers, as well as the interdisciplinary demands of these innovations on researchers and management. Finally, we conclude with some of the strategies that have been successful thus far in overcoming these barriers, and the types of policies which could have positive impacts moving forward.

  4. Barriers to the implementation of green chemistry in the United States.

    PubMed

    Matus, Kira J M; Clark, William C; Anastas, Paul T; Zimmerman, Julie B

    2012-10-16

    This paper investigates the conditions under which firms are able to develop and implement innovations with sustainable development benefits. In particular, we examine "green chemistry" innovations in the United States. Via interviews with green chemistry leaders from industry, academia, nongovernmental institutions (NGOs), and government, we identified six major categories of challenges commonly confronted by innovators: (1) economic and financial, (2) regulatory, (3) technical, (4) organizational, (5) cultural, and (6) definition and metrics. Further analysis of these barriers shows that in the United States, two elements of these that are particular to the implementation of green chemistry innovations are the absence of clear definitions and metrics for use by researchers and decision makers, as well as the interdisciplinary demands of these innovations on researchers and management. Finally, we conclude with some of the strategies that have been successful thus far in overcoming these barriers, and the types of policies which could have positive impacts moving forward. PMID:22963612

  5. United abominations: Density functional studies of heavy metal chemistry

    SciTech Connect

    Schoendorff, George

    2012-01-01

    Carbonyl and nitrile addition to uranyl (UO22+) are studied. The competition between nitrile and water ligands in the formation of uranyl complexes is investigated. The possibility of hypercoordinated uranyl with acetone ligands is examined. Uranyl is studied with diactone alcohol ligands as a means to explain the apparent hypercoordinated uranyl. A discussion of the formation of mesityl oxide ligands is also included. A joint theory/experimental study of reactions of zwitterionic boratoiridium(I) complexes with oxazoline-based scorpionate ligands is reported. A computational study was done of the catalytic hydroamination/cyclization of aminoalkenes with zirconium-based catalysts. Techniques are surveyed for programming for graphical processing units (GPUs) using Fortran.

  6. Scale-up of mild gasification to a process development unit. Quarterly report, November 1993--February 1994

    SciTech Connect

    Campbell, J.A.L.; Carty, R.H.; Foster, H.

    1994-05-01

    The work performed during the ninth quarterly reporting period (November 21, 1993 through February 20, 1994) is presented in this report. The overall objective of this project is to develop the IGT Mid-Gasification MILDGAS) process for near-term commercialization. The specific objectives of the program are to: design, construct, and operate a 24-tons/day adiabatic process development unit (PDU) to obtain process performance data suitable for further design scaleup; obtain large batches of coal-derived co-products for industrial evaluation; prepare a detailed design of a demonstration unit; and develop technical and economic plans for commercialization of the MILDGAS process. The project team that is performing the initial phases of the PDU development are: Kerr-McGee Coal Corporation (K-M Coal), the Institute of Gas Technology (IGT), Bechtel Corporation (Bechtel), and Southern Illinois University at Carbondale (SIUC). The MILDGAS process is a continuous closed system for producing liquid and solid (char) co-products at mild operating conditions up to 50 psig and 1300F. It is capable of processing a wide range of both eastern caking and western noncaking coals. The 1 ton/hr PDU facility that is to be constructed is comprised of a 2.5-ft ID adiabatic gasifier for the production of gases, coal liquids, and char; a three-stage condensation train to condense and store the liquid products; and coal feeding and char handling equipment. The facility will also incorporate support equipment for environmentally acceptable disposal of process waste. A Finding of No Significant Impact (FONSI) was obtained on our NEPA submittal on February 10, 1994, allowing us to proceed with the project. The permitting documentation for the authority to construct was submitted to the Illinois EPA this quarter. Work to finalize the process design and obtain updated bids on the PDU was begun after the FONSI was obtained.

  7. Effects of surface chemistry on the porous structure of coal. Quarterly technical progress report, July 1996--September 1996

    SciTech Connect

    Anderson, S.A.; Hatcher, P.G.; Radovic, L.R.

    1996-10-01

    The primary objective of this project is to use {sup 129}Xe NMR to characterize the microporous structure of coals. We will use direct information on pore size, as well as indirect information from adsorption rates and evidence for intra/extraparticle diffusion, to characterize the connectivity of the micropore network. A second objective is to use {sup 129}Xe NMR to describe the effect of controlled opening of the micropores in a microporous carbon by oxygen chemi-sorption/desorption. Our experimental focus in this quarter has been the low power presaturation of the NMR signal of {sup 129}Xe adsorbed in coal. Preliminary work on this experiment was reported in the last quarter. Low power presaturation of {sup 129}Xe adsorbed in two coals produces a hole-burning effect in the adsorbed xenon NMR signals, indicating that these signals are broad due to overlap of a series of chemical shifts. Saturation transfer to the entire adsorbed xenon signal and to the extraparticle gas is observed with increasing presaturation time. Differences in timing of saturation transfer to the external gas have implications for the nature of the connectivity of the pore structures in coal.

  8. Advanced direct liquefaction concepts for PETC generic units. Quarterly technical progress report, October 1993--December 1993

    SciTech Connect

    Not Available

    1994-02-01

    Several promising leads that have developed during the course of this program are being evaluated in this phase of the study. These have been selected from those that can be economically evaluated within the time constraints of the program schedule. A detailed plan for evaluating these approaches was formulated. The individual steps that will be evaluated are: (1) Dewaxing of the distillate recycle solvent stream treating either 25% or 100% of the stream. (2) Hydrotreating the dewaxed distillate streams in a downflow fixed bed reactor. (3) Agglomerating the coal using both the 25% and 100% dewaxed-hydrotreated distillate streams. (4) Liquefying the as-received coal and the agglomerated coals using two different Mo-promoted hematite particulate catalysts. (5) Liquefying two different Mo-Fe impregnated coals. (6) Liquefying the two off-agglomerated, Mo-Fe impregnated coals. The effect of the presence of molybdenum in the 1050{degrees}F{sup +} will be determined by making comparisons in both Mo-containing and Mo-free full range V-131B process solvent. The solvents that will be used in this study are the full-range reconstituted Mo-containing V-131B from Run 262E and a Mo-free V-131B made up of 1050{degrees}F{sup +} bottoms from Run 258K V-131B and V-1074 distillate from Run 262E. The series of experiments are described and a chart has been prepared summarizing this series of runs. The plan requires significant exchange of samples between the different participants in the program with the schedule timed for providing the data for economic evaluation within the next quarterly reporting period.

  9. Exploratory study of coal-conversion chemistry. Quarterly report No. 9, March 20, 1980-June 19, 1980. [Hydroxydiphenylmethane, diphenylether, diphenymethane

    SciTech Connect

    McMillen, Donald F.; Ogier, Walter C.

    1980-11-19

    This report describes work accomplished under two tasks: Task A, Mechanism of Cleavage of Key Bond Types Present in Coals, and Task B, Catalysis of Conversion in CO-H/sub 2/O Systems. Under Task A, the very effective catalysis of carbon-carbon bond cleavage by iron oxides in hydroxydiphenylmethane structures has been further characterized. An electron-transfer mechanism offers the most likely explanation of the observations that (1) alumina and silica-alumina surfaces are less active catalysts than Fe/sub 3/O/sub 4/, (2) meta-hydroxydiphenylmethane is almost as subject to catalysis as para-hydroxydiphenylmethane, (3) diphenyl ether is less subject to Fe/sub 3/O/sub 4/ catalysis than diphenylmethane, and (4) ortho-methoxydiphenylmethane exhibits the same susceptibility to Fe/sub 3/O/sub 4/ catalysis as ortho-hydroxydiphenylmethane. Under Task B, this quarter we have completed the survey of possible metal catalysts present in the Hastelloy C autoclave. We have found that coal conversion in CO-H/sub 2/O systems is effective when metal oxides such as MoO/sub 4//sup =/, Cr/sub 2/O/sub 7//sup =/, and MnO/sub 4//sup -/ are used as catalysts, but there is less or no coal conversion with FeCl/sub 3/ or Ni(CH/sub 3/COO)/sub 2/. While studying the fate of the catalyst after the reaction, we have isolated formate in the water-soluble fraction. This important information could help us in studying the role of formate in coal conversion. During this quarter, we have also studied the influence of reaction time and fresh CO on coal conversion in the presence of a catalyst. A striking result of 67% of benzene-soluble materials was obtained with an equivalent of 6000 ppM of Cr as sodium dichromate.

  10. Using problem based learning and guided inquiry in a high school acid-base chemistry unit

    NASA Astrophysics Data System (ADS)

    McKinley, Katie

    The purpose of this investigation was to determine if incorporating problem based learning and guided inquiry would improve student achievement in an acid base unit for high school chemistry. The activities and labs in the unit were modified to be centered around the problem of a fish kill that students investigated. Students also participated in guided inquiry labs to increase the amount of critical thinking and problem solving being done in the classroom. The hypothesis was that the implementation of problem based learning and guided inquiry would foster student learning. Students took a pre-test and post-test on questions covering the objectives of the acid base unit. These assessments were compared to determine the effectiveness of the unit. The results indicate that the unit was effective in increasing student performance on the unit test. This study also analyzed the process of problem based learning. Problem based learning can be an effective method of engaging students in inquiry. However, designing an effective problem based learning unit requires careful design of the problem and enough structure to assure students learn the intended content.

  11. Molten Salt Coal Gasification Process Development Unit. Phase 2. Quarterly technical progress report No. 2, October-December 1980

    SciTech Connect

    Slater, M. H.

    1981-01-20

    This represents the second quarterly progress report on Phase 2 of the Molten Salt Coal Gasification Process Development Unit (PDU) Program. Phase 1 of this program started in March 1976 and included the design, construction, and initial operation of the PDU. On June 25, 1980, Phase 2 of the program was initiated. It covers a 1-year operations program utilizing the existing PDU and is planned to include five runs with a targeted total operating time of 9 weeks. During this report period, Run 6, the initial run of the Phase 2 program was completed. The gasification system was operated for a total of 95 h at pressures up to 10 atm. Average product gas HHV values of 100 Btu/scf were recorded during 10-atm operation, while gasifying coal at a rate of 1100 lb/h. The run was terminated when the melt overflow system plugged after 60 continuous hours of overflow. Following this run, melt withdrawal system revisions were made, basically by changing the orifice materials from Monofrax to an 80 Cobalt-20 Chromium alloy. By the end of the report period, the PDU was being prepared for Run 7.

  12. Changes in the chemistry of precipitation in the United States, 1981-1998

    USGS Publications Warehouse

    Nilles, M.A.; Conley, B.E.

    2001-01-01

    Regulatory measures in the United States, such as Title IV of the Clean Air Act Amendments of 1990, have primarily restricted sulfur dioxide emissions as a way to control acidic deposition. These restrictions, coupled with increasing concentrations of NH4+ in wet deposition in some regions of the U.S. and continued high emissions of nitrogen oxides have generated a significant shift in the chemistry of precipitation as measured at National Atmospheric Deposition Program/National Trends Network sites. Trends in precipitation chemistry at NADP/NTN sites were evaluated for statistical significance for the period 1981-1998 using a Seasonal Mann-Kendall Test, a robust non-parametric test for detection of monotonic trends. SO42- declines were detected at 100 of the 147 sites examined while no sites exhibited increasing SO42- trends. On average, SO42- declined 35% over the period 1981-1998 with downward SO42- trends being most pronounced in the northeastern United States. In contrast, no consistent trends in NO3- concentrations were observed in precipitation in any major region of the United States. Although the majority of sites did not exhibit significant trends in NH4+ concentration, 30 sites exhibited upward trends. For Ca2+ concentration in precipitation, 64 sites exhibited a significant decreasing trend and no sites exhibited an upward trend.

  13. Relationships among foliar chemistry, foliar polyamines, and soil chemistry in red spruce trees growing across the northeastern United States

    USGS Publications Warehouse

    Minocha, R.; Shortle, W.C.; Lawrence, G.B.; David, M.B.; Minocha, S.C.

    1997-01-01

    Forest trees are constantly exposed to various types of natural and anthropogenic stressors. A major long-term goal of our research is to develop a set of early physiological and biochemical markers of stress in trees before the appearance of visual symptoms. Six red spruce (Picea rubens Sarg.) stands from the northeastern United States were selected for collection of soil and foliage samples. All of the chosen sites had soil solution pH values below 4.0 in the Oa horizon but varied in their geochemistry. Some of these sites were apparently under some form of environmental stress as indicated by a large number of dead and dying red spruce trees. Samples of soil and needles (from apparently healthy red spruce trees) were collected from these sites four times during a two-year period. The needles were analyzed for perchloric acid-soluble polyamines and exchangeable inorganic ions. Soil and soil solution samples from the Oa and B horizons were analyzed for their exchange chemistry. The data showed a strong positive correlation between Ca and Mg concentrations in the needles and in the Oa horizon of the soil. However, needles from trees growing on relatively Ca-rich soils with a low exchangeable Al concentration and a low Al:Ca soil solution ratio had significantly lower concentrations of putrescine and spermidine than those growing on Ca-poor soils with a high exchangeable Al concentration and a high Al:Ca soil solution in the Oa horizon. The magnitude of this change was several fold higher for putrescine concentrations than for spermidine concentrations. Neither putrescine nor spermidine were correlated with soil solution Ca, Mg, and Al concentrations in the B horizon. The putrescine concentrations of the needles always correlated significantly with exchangeable Al (r2=0.73, p???0.05) and still solution Al:Ca ratios (r2=0.91, p???0.01) of the Oa horizon. This suggests that in conjunction with soil chemistry, putrescine and/or spermidine may be used as a potential

  14. Advanced secondary recovery demonstration for the Sooner Unit. [Quarterly] report, October 1992--January 1993

    SciTech Connect

    Sippel, M.; Junkin, J.; Pritchett, R.; Hardage, B.

    1993-02-24

    The objectives of the project are to demonstrate the effectiveness of geologically targeted infill drilling and improved reservoir management to obtain maximum oil recovery from the Sooner Unit field using water injection and gas recycling as secondary methods. The first phase of the project involves an integrated multi-discipline approach to identify optimum well sites and development of a reservoir operations plan. The second phase will involve drilling of up to three geologically targeted infill wells and establishing production/injection schedules. Reservoir simulation, transient well tests and careful production monitoring will be used to evaluate the results. The third phase will involve technology transfer through a series of technical papers and presentations of a short course. Emphasis will be on the economics of the project and the implemented technologies. Summary of technical progress is presented for: Well drilling and completion; seismic data acquisition; and geologic and engineering interpretation.

  15. Advanced secondary recovery demonstration for the Sooner Unit. [Quarterly] report, February--April 1993

    SciTech Connect

    Sippel, M.; Junkin, J.; Pritchett, R.; Hardage, B.

    1993-05-20

    The objectives of the project are to demonstrate the effectiveness of geologically targeted infill drilling and improved reservoir management to obtain maximum oil recovery from the Sooner Unit field using water injection and gas recycling as secondary methods. The first phase of the project involves an integrated multi-discipline approach to identify optimum well sites and development of a reservoir operations plan. The second phase will involve drilling of up to three geologically targeted infill wells and establishing production/injection schedules. Reservoir simulation, transient well tests and careful production monitoring will be used to evaluate the results. The third phase will involve technology transfer through a series of technical papers and presentations of a short course. Emphasis will be on the economics of the project and the implemented technologies.

  16. Where are the forests in the United States "not disturbed" over a quarter century?

    NASA Astrophysics Data System (ADS)

    Huang, C.; Zhao, F. A.; Goward, S. N.; Schleeweis, K.; Michaelis, A.; Masek, J. G.; Dungan, J. L.; Cohen, W. B.; Moisen, G.; Rishmawi, K.

    2015-12-01

    Forests provide many important ecosystem services. Logging, fire, and other disturbances can disrupt or even diminish the provision of these services. Although many map products and inventory data can be used to estimate the total forested area in the United States, it is not clear how much of the country's forest remained undisturbed in recent decades. Through the North American Forest Dynamics (NAFD) study, we have mapped both disturbed and undisturbed forests over the conterminous United States (CONUS) using sub-annual time series of Landsat observations. The results revealed that 33.6% of the land area of CONUS had forest cover during some or all of the years between 1986 and 2010. About two thirds of the nation's forests remained undisturbed during the 25-year period. Most of these undisturbed forests were distributed in western and northern parts of the eastern US. The percentage of undisturbed forest in the southeastern states were lower, about 50% or less. In these states, much of the undisturbed forest was distributed along riparian zones or in protected areas, including national parks and national forests. In the northeastern and western US, riparian zones did not have a significantly higher proportion of undisturbed forests than non-riparian areas. While most protected areas had a high percentage of undisturbed forests, some of them had lower percentages than the average values of their surrounding regions. Topography may also have played a role in keeping forests "undisturbed". Many ecoregions in the western and northern US had a substantially higher percentage of undisturbed forests at high elevations than at low elevations.

  17. Control of pyrite surface chemistry in physical coal cleaning. Seventh quarterly progress report, March 1, 1991--May 31, 1991

    SciTech Connect

    Luttrell, G.H.; Yoon, R.H.; Zachwieja, J.B.

    1992-06-24

    The removal of pyrite from coal by flotation or any other surface chemistry based separation process is often hampered by the apparent hydrophobicity of the mineral. Results obtained in this project suggest that corrosion processes are responsible for the apparent hydrophobicity of pyrite in aqueous environments. Characterization of the corrosion products of pyrite in acidic and alkaline solution has been performed using electrochemical (cyclic voltammetry and single-potential-step chronoamperometry) and spectroscopic techniques (X-ray photoelectron spectroscopy -- XPS). The nature of the surface products have been correlated with hydrophobicity determined from in-situ contact angle measurements. The results show that pyrite hydrophobicity is influenced by either the oxidation or reduction conditions of the system.

  18. Accelerating Correlated Quantum Chemistry Calculations Using Graphical Processing Units and a Mixed Precision Matrix Multiplication Library.

    PubMed

    Olivares-Amaya, Roberto; Watson, Mark A; Edgar, Richard G; Vogt, Leslie; Shao, Yihan; Aspuru-Guzik, Alán

    2010-01-12

    Two new tools for the acceleration of computational chemistry codes using graphical processing units (GPUs) are presented. First, we propose a general black-box approach for the efficient GPU acceleration of matrix-matrix multiplications where the matrix size is too large for the whole computation to be held in the GPU's onboard memory. Second, we show how to improve the accuracy of matrix multiplications when using only single-precision GPU devices by proposing a heterogeneous computing model, whereby single- and double-precision operations are evaluated in a mixed fashion on the GPU and central processing unit, respectively. The utility of the library is illustrated for quantum chemistry with application to the acceleration of resolution-of-the-identity second-order Møller-Plesset perturbation theory calculations for molecules, which we were previously unable to treat. In particular, for the 168-atom valinomycin molecule in a cc-pVDZ basis set, we observed speedups of 13.8, 7.8, and 10.1 times for single-, double- and mixed-precision general matrix multiply (SGEMM, DGEMM, and MGEMM), respectively. The corresponding errors in the correlation energy were reduced from -10.0 to -1.2 kcal mol(-1) for SGEMM and MGEMM, respectively, while higher accuracy can be easily achieved with a different choice of cutoff parameter.

  19. Soil and soil solution chemistry under red spruce stands across the northeastern united states

    USGS Publications Warehouse

    David, M.B.; Lawrence, G.B.

    1996-01-01

    Red spruce ecosystems in the northeastern United States are of interest because this species is undergoing regional decline. Their underlying soils have been examined closely at only a few sites, and information available on red spruce soils throughout this region is limited.This study was conducted to examine soil and soil solution chemistry at red spruce sites in the northeastern US that encompass the range of soil conditions in which red spruce grow. Soils and soil solutions from Oa and B horizons were obtained over a 2-year period from 12 undisturbed red spruce forests (elevations of 80-975 m) in New York, Vermont, New Hampshire, and Maine. All sites had extremely acid Spodosols (Oa soil pH range 2.56 to 3.11 in 0.01 M CaCl2), with generally low concentrations of base cations and high concentrations of Al on soil exchange sites. There was considerable range in exchange chemistry across the sites, however, with exchangeable Ca in Oa horizons ranging from 2.1 to 21.6 cmolckg-1 and exchangeable Al from 3.6 to 18.3 cmolckg-1. Solution chemistry had high concentrations of DOC in the Oa horizons (1160-15200 ??mol L-1), with higher concentrations in the fall than in the spring, which was probably a reflection of fresh litter inputs. Despite high concentrations of DOC in all solutions, inorganic Al was found in some Oa solutions at concentrations as high as 26 ??mol L-1. Ratios of Ca2+ to inorganic Al concentraturns were less than 1.0 in the Oa horizon of one site, and were well below 1.0 in B horizons of all sites. That soil chemistry was related to soil solution chemistry was demonstrated by solution Al concentrations in the forest floor having significant relationships with pyrophosphate extractable Al, although it was not related in the B horizon. Soil exchangeable Ca/Al ratios in the Oa horizon explained 75% of the variation in solution Ca2+/inorganic Al ratios when mean values were used for each site. Our studies have expanded the range of soil chemical

  20. Chemistry and adhesive properties of poly(arylene ether)s containing heterocyclic units

    NASA Technical Reports Server (NTRS)

    Connell, John W.

    1991-01-01

    Novel poly(arylene ether)s containing heterocyclic units were prepared, characterized, and evaluated as adhesives and composite matrices. The polymers were prepared by reacting a heterocyclic bisphenol with an activated aromatic dihalide in a polar aprotic solvent, using potassium carbonate. The polymerizations were generally carried out in N,N-dimethylacetamide at 155 C. In some cases, where the polymers were semicrystalline, higher temperatures and thus higher boiling solvents were necessary to keep the polymers in solution. Heterocyclic rings incorporated into the poly(arylene ether) backbone include phenylquinoxaline, phenylimidazole, benzimidazole, benzoxazole, 1,3,4-oxadiazole, and 1,2,4-triazole. The polymers were characterized by differential scanning calorimetry, solution viscosity, X-ray diffraction, thin film, and adhesive and (in some cases) composite properties. The glass transition temperatures, crystalline melt temperature, solubility, and mechanical properties varied depending upon the heterocyclic ring. The chemistry and properties of these materials are discussed.

  1. Solutions, Unit 2: Molarity, Molality, Concentration Conversions. A Computer-Enriched Module for Introductory Chemistry. Student's Guide and Teacher's Guide.

    ERIC Educational Resources Information Center

    Bader, Morris

    Presented are the teacher's guide and student manual for one of a series of self-instructional, computer-based learning modules for an introductory, undergraduate chemistry course. The student module for this solution concentration unit includes objectives, prerequisites, pretest, discussion, and 20 problem sets. Included in the teacher's guide…

  2. Solutions, Unit 5: Colligative Properties of Solutions. A Computer-Enriched Module for Introductory Chemistry. Student's Guide and Teacher's Guide.

    ERIC Educational Resources Information Center

    Bader, Morris

    Presented are the teacher's guide and student manual for one of a series of self-instructional, computer-based learning modules for an introductory, undergraduate chemistry course. The student manual for this unit on the colligative properties of solutions includes objectives, prerequisites, pretest, discussion, and 20 problem sets. Included in…

  3. Diversity-oriented synthesis leads to an effective class of bifunctional linchpins uniting anion relay chemistry (ARC) with benzyne reactivity.

    PubMed

    Smith, Amos B; Kim, Won-Suk

    2011-04-26

    In conjunction with the construction of a diversity-oriented synthesis library of 10-membered ring "natural product-like" macrolides, the design, synthesis, and validation of a unique class of bifunctional linchpins, uniting benzyne reactivity initiated by type II anion relay chemistry (ARC) has been achieved, permitting access to diverse [2+2], [3+2], and [4+2] cycloadducts.

  4. Tomorrow. The Report of the Task Force for the Study of Chemistry Education in the United States.

    ERIC Educational Resources Information Center

    American Chemical Society, Washington, DC.

    An American Chemical Society (ACS) task force was charged to examine the state of chemistry education in the United States and to make recommendations in light of its findings. This document presents the task force's report and 39 major (and also secondary) recommendations. These recommendations, with accompanying discussions, focus on: (1)…

  5. Chemical Equilibrium, Unit 2: Le Chatelier's Principle. A Computer-Enriched Module for Introductory Chemistry. Student's Guide and Teacher's Guide.

    ERIC Educational Resources Information Center

    Jameson, A. Keith

    Presented are the teacher's guide and student materials for one of a series of self-instructional, computer-based learning modules for an introductory, undergraduate chemistry course. The student manual for this unit on Le Chatelier's principle includes objectives, prerequisites, pretest, instructions for executing the computer program, and…

  6. Chemical Equilibrium, Unit 3: Chemical Equilibrium Calculations. A Computer-Enriched Module for Introductory Chemistry. Student's Guide and Teacher's Guide.

    ERIC Educational Resources Information Center

    Jameson, Cynthia J.

    Presented are the teacher's guide and student materials for one of a series of self-instructional, computer-based learning modules for an introductory, undergraduate chemistry course. The student manual for this unit on chemical equilibrium calculations includes objectives, prerequisites, a discussion of the equilibrium constant (K), and ten…

  7. Quarter and cow risk factors associated with the occurrence of clinical mastitis in dairy cows in the united Kingdom

    PubMed Central

    Breen, J. E.; Green, M. J.; Bradley, A. J.

    2009-01-01

    Quarter and cow risk factors associated with the development of clinical mastitis (CM) during lactation were investigated during a 12-mo longitudinal study on 8 commercial Holstein-Friesian dairy farms in the southwest of England. The individual risk factors studied on 1,677 cows included assessments of udder and leg hygiene, teat-end callosity, and hyperkeratosis; body condition score; and measurements of monthly milk quality and yield. Several outcome variables for CM were used for statistical analysis, which included use of generalized linear mixed models. Significant covariates associated with an increased risk of CM were increasing parity, decreasing month of lactation, cows with very dirty udders, and quarters with only very severe hyperkeratosis of the teat-end. Thin and moderate smooth teat-end callosity scores were not associated with an increased risk for CM. Cows that recorded a somatic cell count >199,000 cells/mL and a milk protein percentage <3.2 at the first milk recording after calving were significantly more likely to develop CM after the first 30 d of lactation. There was no association between cow body condition score and incidence of CM. Of the cases of CM available for culture, 171 (26.7%) were confirmed as being caused by Escherichia coli and 121 (18.9%) confirmed as being caused by Streptococcus uberis. Quarters with moderate and very severe hyperkeratosis of the teat-end were at significantly increased risk of clinical E. coli mastitis before the next visit. Quarters with very severe hyperkeratosis of the teat-end were significantly more likely to develop clinical Strep. uberis mastitis before the next visit. There were strong trends within the data to suggest an association between very dirty udders (an increased risk of clinical E. coli mastitis) and teat-ends with no callosity ring present (an increased risk of clinical Strep. uberis mastitis). These results highlight the importance of individual quarter- and cow-level risk factors in

  8. Distribution and variability of precipitation chemistry in the conterminous United States, January through December 1983

    USGS Publications Warehouse

    Rinella, J.F.; Miller, T.L.

    1988-01-01

    Analysis of atmospheric precipitation samples, collected during the 1983 calendar year from 109 National Trends Network sites in the United States, are presented in this report. The sites were grouped into six geographical regions based on the chemical composition of the samples. Precipitation chemistry in these regions was influenced by proximity to (1) oceans, (2) major industrial and fossil-fuel consuming areas, and (3) major agricultural and livestock areas. Frequency distributions of ionic composition, determined on 10 chemical constituents and on precipitation quantities for each site, showed wide variations in chemical concentrations and precipitation quantities from site to site. Of the 109 sites, 55 had data coverage for the year sufficient to characterize precipitation quality patterns on a nationwide basis. Except for ammonium and calcium, both of which showed largest concentrations in the agricultural midwest and plains states, the largest concentrations and loads generally were in areas that include the heavily industrialized population center of the eastern United States. Except for hydrogen, all chemical ions are inversely related to the quantity of precipitation depth. Precipitation quantities generally account for less than 30% of chemical variation in precipitation samples. However, precipitation quantities account for 30 to 65% of the variations of calcium concentrations in precipitation. In regions where precipitation has a large ionic proportion of hydrogen-ion equivalents, much of the hydrogen-ion concentration could be balanced by sulfate equivalents and partly balanced by nitrite-plus-nitrate equivalents. In the regions where hydrogen-ion equivalents in precipitation were smaller, ammonion-and calcium-ion equivalents were necessary, along with the hydrogen-ion equivalents, to balance the sulfate plus nitrite-plus-nitrate equivalent. (USGS)

  9. Quarter and cow risk factors associated with a somatic cell count greater than 199,000 cells per milliliter in united Kingdom dairy cows

    PubMed Central

    Breen, J. E.; Bradley, A. J.; Green, M. J.

    2009-01-01

    Quarter and cow risk factors associated with a somatic cell count (SCC) >199,000 cells/mL at the next milk recording during lactation were investigated during a 12-mo longitudinal study on 8 commercial Holstein-Friesian dairy herds in Southwest England, United Kingdom. The individual risk factors studied on 1,677 cows included assessments of udder and leg hygiene, teat-end callosity and hyperkeratosis, body condition score (BCS), and measurements of monthly milk quality and yield. The outcome variable used for statistical analysis was the next recorded individual cow SCC >199,000 cells/mL. Statistical analysis included use of generalized linear mixed models. Significant covariates associated with an increased risk of SCC >199,000 cells/mL were increasing parity, increasing month of lactation, previous SCC (SCC 200,000 cells/mL and greater, odds ratio = 7.12), and cows with a BCS <1.5 (odds ratio = 2.09) or BCS >3.5 (odds ratio = 2.20). Significant covariates associated with a reduced risk of SCC >199,000 cells/mL were cows with contamination of the skin of the udder and quarters with mild (odds ratio = 0.65) and moderate (odds ratio = 0.62) hyperkeratosis of the teat-end. These results suggest that individual quarter and cow-level factors are important in the acquisition of intramammary infections as measured by SCC during lactation. Cow energy status, as measured by BCS, may influence the risk of intramammary infection during lactation. PMID:19528588

  10. Greening chemistry: Emerging epistemic political tensions in California and the United States.

    PubMed

    Iles, Alastair

    2013-05-01

    Green chemistry promises to make the global chemical industry more sustainable through redesigning chemical production. Nonetheless, many green chemists in the US have focused on persuading other chemists and industrial corporations to change through education and voluntary industry action. Green chemistry in the US may have stagnated relatively because of missing societal input and public scrutiny of chemistry choices. Using recent green chemistry policy experiments in California and the US, I explore how new epistemic political tensions over the roles of expertise, societal participation, and regulation may be creating new societal input and, perhaps, greater industry take-up. I consider whether the concept of socially robust knowledge can help illuminate California's experiments more broadly, and find that this concept needs to be expanded to include the politics of expertise and institutional innovations for increasing information flows between experts and societal actors. PMID:23833110

  11. Developing and Evaluating an Eighth Grade Curriculum Unit That Links Foundational Chemistry to Biological Growth: Using Student Measures to Evaluate the Promise of the Intervention

    ERIC Educational Resources Information Center

    Herrmann-Abell, Cari F.; Flanagan, Jean C.; Roseman, Jo Ellen

    2013-01-01

    Students often have trouble understanding key biology ideas, in part because they lack an understanding of foundational chemistry ideas. AAAS [American Association for the Advancement of Science] is collaborating with BSCS [Biological Sciences Curriculum Study] in the development of a curriculum unit that connects core chemistry and biology ideas…

  12. Teaching Three-Dimensional Structural Chemistry Using Crystal Structure Databases. 2. Teaching Units that Utilize an Interactive Web-Accessible Subset of the Cambridge Structural Database

    ERIC Educational Resources Information Center

    Battle, Gary M.; Allen, Frank H.; Ferrence, Gregory M.

    2010-01-01

    A series of online interactive teaching units have been developed that illustrate the use of experimentally measured three-dimensional (3D) structures to teach fundamental chemistry concepts. The units integrate a 500-structure subset of the Cambridge Structural Database specially chosen for their pedagogical value. The units span a number of key…

  13. A clinical chemistry analyzer evaluated by NCCLS guidelines for use in a military field laboratory unit.

    PubMed

    Sullinger, J; Garrett, P E

    1989-11-01

    In a previous comparison study of "dry chemistry" desktop analyzers, the ChemPro 1000 (Arden Medical Systems) was one of several instruments found suitable for field use. We have now evaluated the linearity, accuracy, and precision of the ChemPro 1000, according to NCCLS Document EP 10-P. We also compared results with those by the SMAC (Technicon) and the Nova 9 (Nova Biomedical) for electrolytes, serum urea nitrogen, and ionized calcium in field and laboratory environments. The precision (CV) of the ChemPro was within acceptable ranges for dry chemistry desktop analyzers for all analytes tested. This instrument is a suitable and reasonable alternative to manual chemistry or to large, automated instrumentation in a field environment.

  14. NADP/NTN annual data summary: Precipitation chemistry in the United States 1990

    SciTech Connect

    Not Available

    1991-09-01

    This report summarizes the chemistry of precipitation samples collected at sites in the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) monitoring network. the main body of the report contains annual and seasonal statistical summaries, and weekly precipitation chemistry data for each site that operated in 1990. In addition, geographical distributions of selected ionic constituents of precipitation are illustrated using annual isopleth maps. One hundred seventy sites that met the data Completeness Criteria established for the Network are represented on these maps.

  15. Strategic petroleum reserve. Quarterly report

    SciTech Connect

    Not Available

    1994-05-15

    The Strategic Petroleum Reserve serves as one of our most important investments in reducing the Nation`s vulnerability to oil supply disruptions. Its existence provides an effective response mechanism should a disruption occur and a formidable deterrent to the use of oil as a political instrument. The Strategic Petroleum Reserve was created pursuant to the Energy Policy and Conservation Act of December 22, 1975, (Public Law 94-163) as amended, to reduce the impact of disruptions in supplies of petroleum products and to carry out obligations of the United States under the Agreement on an International Energy Program. Section 165(a) of the Act requires the submission of Annual Reports and Section 165(b)(1) requires the submission of Quarterly Reports. This Quarterly Report highlights activities undertaken during the first quarter of calendar year 1994, including: (1) inventory of petroleum products stored in the Reserve, under contract and in transit at the end of the calendar quarter; (2) fill rate for the current quarter and projected fill rate for the next calendar quarter; (3) average price of the petroleum products acquired during the calendar quarter; (4) current and projected storage capacity; (5) analysis of existing or anticipated problems with the acquisition and storage of petroleum products, and future expansion of storage capacity; (6) funds obligated by the Secretary from the SPR Petroleum Account and the Strategic Petroleum Reserve Account during the prior calendar quarter and in total; and (7) major environmental actions completed, in progress, or anticipated.

  16. Air-chemistry studies over the Gulf of Mexico: a bilateral scientific cooperative project between the United States of America and the United States of Mexico. Technical memo

    SciTech Connect

    Parungo, F.; Miller, J.

    1988-02-01

    This report documents the scientific research of a bilateral cooperative project between the United States of America and The United States of America. In 1986 scientists from both nations joined a research cruise in the Gulf of Mexico to investigate the air chemistry over the water that the two nations share. Emphases were placed on natural air quality, anthropogenic air pollution, acid rain, air-sea-land exchanges of gases and aerosols. The investigation included in-situ measurements and post-cruise laboratory analyses. Chemical, physical, meteorological, and oceanographic analyses were conducted to survey temporal and spatial variations of diverse parameters throughout the Gulf. The data sets were analyzed, interpreted, and intercorrelated. The results show that during the cruise (20 July-22 August), the large-scale air trajectories were easterly from the Caribbean Sea at all levels; however, the Gulf air measured was highly polluted in general.

  17. Why and How We Made a Problem Oriented AV Teaching Unit for Chemistry Students.

    ERIC Educational Resources Information Center

    Mulder, T. H. M.; Verdonk, A. H.

    1984-01-01

    Describes an audiovisual teaching unit on the chemical laboratory technique of recrystallization which was developed along problem-solving lines and based on observation of student laboratory behavior. Discussion includes usual procedures for developing such units, how this unit solves problems typically associated with teaching, and its general…

  18. Twenty-Seventh Quarterly Progress Report of the Research Coordinating Unit (RCU) in Wisconsin. October 1, 1972-December 31, 1972.

    ERIC Educational Resources Information Center

    Wisconsin State Board of Vocational, Technical, and Adult Education, Madison. Research Coordinating Unit.

    A progress report (covering the period October 1, 1972--December 31, 1972) of the Research Coordinating Unit (RCU) of the Wisconsin Board of Vocational, Technical and Adult Education, the report briefly describes activities relating to the accomplishment of objectives and lists research activities. Objectives relate to the stimulation,…

  19. An Unusual Inverted Saline Microbial Mat Community in an Interdune Sabkha in the Rub' al Khali (the Empty Quarter), United Arab Emirates.

    PubMed

    McKay, Christopher P; Rask, Jon C; Detweiler, Angela M; Bebout, Brad M; Everroad, R Craig; Lee, Jackson Z; Chanton, Jeffrey P; Mayer, Marisa H; Caraballo, Adrian A L; Kapili, Bennett; Al-Awar, Meshgan; Al-Farraj, Asma

    2016-01-01

    Salt flats (sabkha) are a recognized habitat for microbial life in desert environments and as analogs of habitats for possible life on Mars. Here we report on the physical setting and microbiology of interdune sabkhas among the large dunes in the Rub' al Khali (the Empty Quarter) in Liwa Oasis, United Arab Emirates. The salt flats, composed of gypsum and halite, are moistened by relatively fresh ground water. The result is a salinity gradient that is inverted compared to most salt flat communities with the hypersaline layer at the top and freshwater layers below. We describe and characterize a rich photosynthetically-based microbial ecosystem that is protected from the arid outside environment by a translucent salt crust. Gases collected from sediments under shallow ponds in the sabkha contain methane in concentrations as high as 3400 ppm. The salt crust could preserve biomarkers and other evidence for life in the salt after it dries out. Chloride-filled depressions have been identified on Mars and although surface flow of water is unlikely on Mars today, ground water is possible. Such a near surface system with modern groundwater flowing under ancient salt deposits could be present on Mars and could be accessed by surface rovers. PMID:26982497

  20. An Unusual Inverted Saline Microbial Mat Community in an Interdune Sabkha in the Rub' al Khali (the Empty Quarter), United Arab Emirates

    PubMed Central

    McKay, Christopher P.; Rask, Jon C.; Detweiler, Angela M.; Bebout, Brad M.; Everroad, R. Craig; Lee, Jackson Z.; Chanton, Jeffrey P.; Mayer, Marisa H.; Caraballo, Adrian A. L.; Kapili, Bennett; Al-Awar, Meshgan; Al-Farraj, Asma

    2016-01-01

    Salt flats (sabkha) are a recognized habitat for microbial life in desert environments and as analogs of habitats for possible life on Mars. Here we report on the physical setting and microbiology of interdune sabkhas among the large dunes in the Rub' al Khali (the Empty Quarter) in Liwa Oasis, United Arab Emirates. The salt flats, composed of gypsum and halite, are moistened by relatively fresh ground water. The result is a salinity gradient that is inverted compared to most salt flat communities with the hypersaline layer at the top and freshwater layers below. We describe and characterize a rich photosynthetically-based microbial ecosystem that is protected from the arid outside environment by a translucent salt crust. Gases collected from sediments under shallow ponds in the sabkha contain methane in concentrations as high as 3400 ppm. The salt crust could preserve biomarkers and other evidence for life in the salt after it dries out. Chloride-filled depressions have been identified on Mars and although surface flow of water is unlikely on Mars today, ground water is possible. Such a near surface system with modern groundwater flowing under ancient salt deposits could be present on Mars and could be accessed by surface rovers. PMID:26982497

  1. Design, construction, operation, and evaluation of a prototype culm combustion boiler/heater unit. Quarterly technical progress report, October 1-December 21, 1981

    SciTech Connect

    Not Available

    1982-01-01

    This report provides a summary of the work performed on the Prototype Culm Combustion Boiler/Heater Unit, Phase I - Engineering Design and Analysis, Phase II - Prototype Plant Construction and Phase III - Start-Up and Operation during the period October 1, 1981 through December 31, 1981. The objectives of the program as well as the technical progress and problem areas encountered during the reporting period are presented. Seven shakedown tests were run. Start-up and shakedown testing was completed. Four parametric tests were run. Performance data are presented with the exception of boiler efficiency which will be reported once chemical analyses are completed. Total boiler operation time through the end of this quarter - 1225 h, 50 min; operating time on culm and culm/limestone - 682 h, 43 min. Inspection revealed no problems with boiler tube wear. Sulfur capture greater than 94% was demonstrated (design is 88%). A turndown of better than 4 to 1 was shown (design is 2.5 to 1). Computer control of most of the loops has been successful and manual control was also demonstrated.

  2. An Unusual Inverted Saline Microbial Mat Community in an Interdune Sabkha in the Rub' al Khali (the Empty Quarter), United Arab Emirates.

    PubMed

    McKay, Christopher P; Rask, Jon C; Detweiler, Angela M; Bebout, Brad M; Everroad, R Craig; Lee, Jackson Z; Chanton, Jeffrey P; Mayer, Marisa H; Caraballo, Adrian A L; Kapili, Bennett; Al-Awar, Meshgan; Al-Farraj, Asma

    2016-01-01

    Salt flats (sabkha) are a recognized habitat for microbial life in desert environments and as analogs of habitats for possible life on Mars. Here we report on the physical setting and microbiology of interdune sabkhas among the large dunes in the Rub' al Khali (the Empty Quarter) in Liwa Oasis, United Arab Emirates. The salt flats, composed of gypsum and halite, are moistened by relatively fresh ground water. The result is a salinity gradient that is inverted compared to most salt flat communities with the hypersaline layer at the top and freshwater layers below. We describe and characterize a rich photosynthetically-based microbial ecosystem that is protected from the arid outside environment by a translucent salt crust. Gases collected from sediments under shallow ponds in the sabkha contain methane in concentrations as high as 3400 ppm. The salt crust could preserve biomarkers and other evidence for life in the salt after it dries out. Chloride-filled depressions have been identified on Mars and although surface flow of water is unlikely on Mars today, ground water is possible. Such a near surface system with modern groundwater flowing under ancient salt deposits could be present on Mars and could be accessed by surface rovers.

  3. Development and Use of Quantum Chemistry Methods on Intel Many-Integrated Core Units

    NASA Astrophysics Data System (ADS)

    Apra, Edoardo

    2015-03-01

    We will describe the approach we have taken in porting quantum chemistry algorithms based on local basis functions to the Intel MIC hardware. The implementation completed in the NWChem code shows the feasibility of effectively combining the processing power of traditional CPU architecture and coprocessor hardware on Petascale class computers. Benchmarks of scientific applications will be presented to illustrate the performances of large scale calculations. This work was conducted in the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by DOE's Office of Biological and Environmental Research and located at PNNL.

  4. Strategic Petroleum Reserve quarterly report

    SciTech Connect

    1995-11-15

    The Strategic Petroleum Reserve was created pursuant to the Energy Policy and Conservation Act of December 22, 1975 (Public Law 94-163). Its purposes are to reduce the impact of disruptions in supplies of petroleum products and to carry out obligations of the United States under the Agreement on an International Energy Program. Section 165(a) of the Act requires the submission of Annual Reports and Section 165(b)(1) requires the submission of Quarterly Reports. This Quarterly Report highlights activities undertaken during the third quarter of calendar year 1995, including: inventory of petroleum products stored in the Reserve; current storage capacity and ullage available; current status of the Strategic Petroleum Reserve storage facilities, major projects and the acquisition of petroleum products; funds obligated by the Secretary from the SPR Petroleum Account and the Strategic Petroleum Reserve Account during the prior calendar quarter and in total; and major environmental actions completed, in progress, or anticipated.

  5. Representation and Analysis of Chemistry Core Ideas in Science Education Standards between China and the United States

    ERIC Educational Resources Information Center

    Wan, Yanlan; Bi, Hualin

    2016-01-01

    Chemistry core ideas play an important role in students' chemistry learning. On the basis of the representations of chemistry core ideas about "substances" and "processes" in the Chinese Chemistry Curriculum Standards (CCCS) and the U.S. Next Generation Science Standards (NGSS), we conduct a critical comparison of chemistry…

  6. Prototype anthracite culm combustion boiler/heater unit. Quarterly technical report No. 4, July 1-September 30, 1979

    SciTech Connect

    Not Available

    1980-01-01

    There are currently about 910 million cubic yards of anthracite culm (mine refuse) contained in 800 separate banks in a 480 square mile area in the Wilkes-Barre (W-B) anthracite mining region. Although this material represents a significant fuel value, equivalent to approximately 1.25 billion barrels of fuel oil, the culm banks have accumulated because no satisfactory method of combusting this fuel was available until the relatively recent development of the atmospheric fluidized bed (AFB) steam generator. A program was initiated in October 1978 to design, construct and evaluate a 100,000 pph AFB steam generator burning anthracite culm with the addition of fresh anthracite, if required. The unit is to demonstrate the technical, economical and environmental feasibility of producing 150 psig saturated steam for district heating in downtown W-B. Phase I of the program consists of the design of the atmospheric fluidized bed (AFB) plant and a hot model test program. Phase II of the program consists of construction, operation, testing and evaluation of the boiler and boiler plant.

  7. Advanced direct liquefaction concepts for PETC generic units: Phase 2. Quarterly technical progress report, July--September, 1996

    SciTech Connect

    1996-11-01

    The Advanced Direct Liquefaction Concepts Program sponsored by the DOE Pittsburgh Energy Technology Center was initiated in 1991 with the objective of promoting the development of new and emerging technology that has the potential for reducing the cost of producing liquid fuels by direct coal liquefaction. The laboratory research program (Phase I) was completed in 1995 by UK/CAER, CONSOL, Sandia National Laboratories and LDP Associates. A three year extension was subsequently awarded in October 1995 to further develop several promising concepts derived from the laboratory program. During Phase II, four continuous bench scale runs will be conducted at Hydrocarbon Technologies, Inc. using a 2 kg/hr continuous bench scale unit located at their facility in Lawrenceville, NJ. The first run in this program (ALC-1), conducted between April 19 and May 14, 1996, consisted of five test conditions to evaluate the affect of coal cleaning and recycle solvent modification. A detailed discussion of this run is included in Section Two of this report. Results obtained during this reporting period for all participants in this program are summarized.

  8. Trends in precipitation and stream-water chemistry in the northeastern United States, water years 1984-96

    USGS Publications Warehouse

    Clow, D.W.; Mast, M. Alisa

    1999-01-01

    Trends in precipitation and stream-water chemistry during water years 1984-96 were examined at eight precipitation monitoring sites and five nearby streams operated by the U.S. Geological Survey in the northeastern United States. The statistical analyses indicate the following: 1)Stream-water sulfate (SO4) concentrations decreased at seven of eight precipitation monitoring sites and in each of five streams. 2)Calcium plus magnesium (Ca + Mg) concentrations decreased at seven of eight precipitation monitoring sites and in three of five streams. 3)Precipitation acidity decreased at five of eight precipitation monitoring sites, but alkalinity increased in only one stream. These results indicate that decreases in atmospheric deposition of SO4 have resulted in decreased precipitation acidity. The chemical response of stream water to changes in precipitation chemistry was complex. Decreases in stream-water SO4 concentrations generally matched decreases of precipitation SO4. In stream water, increases in alkalinity were uncommon because decreases in SO4 concentrations often were accompanied by decreases in Ca + Mg concentrations. The decreases in Ca + Mg concentrations might be related to depletion of base cations from soil caused by long-term exposure to acidic deposition. Increases in streamwater alkalinity might not occur until rates of acidic deposition are reduced to substantially less than the rate of cation resupply by weathering and atmospheric deposition. In areas where forests are aggrading, recovery of stream-water alkalinity will be delayed further because of the acidifying effect of biomass accumulation.

  9. Two Principles of Reticular Chemistry Uncovered in a Metal-Organic Framework of Heterotritopic Linkers and Infinite Secondary Building Units.

    PubMed

    Catarineu, Noelle R; Schoedel, Alexander; Urban, Philipp; Morla, Maureen B; Trickett, Christopher A; Yaghi, Omar M

    2016-08-31

    Structural diversity of metal-organic frameworks (MOFs) has been largely limited to linkers with at most two different types of coordinating groups. MOFs constructed from linkers with three or more nonidentical coordinating groups have not been explored. Here, we report a robust and porous crystalline MOF, Zn3(PBSP)2 or MOF-910, constructed from a novel linker PBSP (phenylyne-1-benzoate, 3-benzosemiquinonate, 5-oxidopyridine) bearing three distinct types of coordinative functionality. The MOF adopts a complex and previously unreported topology termed tto. Our study suggests that simple, symmetric linkers are not a necessity for formation of crystalline extended structures and that new, more complex topologies are attainable with irregular, heterotopic linkers. This work illustrates two principles of reticular chemistry: first, selectivity for helical over straight rod secondary building units (SBUs) is achievable with polyheterotopic linkers, and second, the pitch of the resulting helical SBUs may be fine-tuned based on the metrics of the polyheterotopic linker. PMID:27517606

  10. Two Principles of Reticular Chemistry Uncovered in a Metal-Organic Framework of Heterotritopic Linkers and Infinite Secondary Building Units.

    PubMed

    Catarineu, Noelle R; Schoedel, Alexander; Urban, Philipp; Morla, Maureen B; Trickett, Christopher A; Yaghi, Omar M

    2016-08-31

    Structural diversity of metal-organic frameworks (MOFs) has been largely limited to linkers with at most two different types of coordinating groups. MOFs constructed from linkers with three or more nonidentical coordinating groups have not been explored. Here, we report a robust and porous crystalline MOF, Zn3(PBSP)2 or MOF-910, constructed from a novel linker PBSP (phenylyne-1-benzoate, 3-benzosemiquinonate, 5-oxidopyridine) bearing three distinct types of coordinative functionality. The MOF adopts a complex and previously unreported topology termed tto. Our study suggests that simple, symmetric linkers are not a necessity for formation of crystalline extended structures and that new, more complex topologies are attainable with irregular, heterotopic linkers. This work illustrates two principles of reticular chemistry: first, selectivity for helical over straight rod secondary building units (SBUs) is achievable with polyheterotopic linkers, and second, the pitch of the resulting helical SBUs may be fine-tuned based on the metrics of the polyheterotopic linker.

  11. Supporting Knowledge Integration in Chemistry with a Visualization-Enhanced Inquiry Unit

    ERIC Educational Resources Information Center

    Chiu, Jennifer L.; Linn, Marcia C.

    2014-01-01

    This paper describes the design and impact of an inquiry-oriented online curriculum that takes advantage of dynamic molecular visualizations to improve students' understanding of chemical reactions. The visualization-enhanced unit uses research-based guidelines following the knowledge integration framework to help students develop coherent…

  12. Quarterly coal report, April--June 1990

    SciTech Connect

    Not Available

    1990-11-02

    The Quarterly Coal Report provides comprehensive information about US coal production, exports, imports, receipts, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. This issue presents detailed quarterly data for April 1990 through June 1990, aggregated quarterly historical data for 1982 through the second quarter of 1990, and aggregated annual historical data for 1960 through 1989 and projected data for selected years from 1995 through 2010. To provide a complete picture of coal supply and demand in the United States, historical information and forecasts have been integrated in this report. 7 figs., 37 tabs.

  13. Deployable Crew Quarters

    NASA Technical Reports Server (NTRS)

    Izenson, Michael G.; Chen, Weibo

    2008-01-01

    The deployable crew quarters (DCQ) have been designed for the International Space Station (ISS). Each DCQ would be a relatively inexpensive, deployable boxlike structure that is designed to fit in a rack bay. It is to be occupied by one crewmember to provide privacy and sleeping functions for the crew. A DCQ comprises mostly hard panels, made of a lightweight honeycomb or matrix/fiber material, attached to each other by cloth hinges. Both faces of each panel are covered with a layer of Nomex cloth and noise-suppression material to provide noise isolation from ISS. On Earth, the unit is folded flat and attached to a rigid pallet for transport to the ISS. On the ISS, crewmembers unfold the unit and install it in place, attaching it to ISS structural members by use of soft cords (which also help to isolate noise and vibration). A few hard pieces of equipment (principally, a ventilator and a smoke detector) are shipped separately and installed in the DCQ unit by use of a system of holes, slots, and quarter-turn fasteners. Full-scale tests showed that the time required to install a DCQ unit amounts to tens of minutes. The basic DCQ design could be adapted to terrestrial applications to satisfy requirements for rapid deployable emergency shelters that would be lightweight, portable, and quickly erected. The Temporary Early Sleep Station (TeSS) currently on-orbit is a spin-off of the DCQ.

  14. Conducting water chemistry of the secondary coolant circuit of VVER-based nuclear power plant units constructed without using copper containing alloys

    NASA Astrophysics Data System (ADS)

    Tyapkov, V. F.

    2014-07-01

    The secondary coolant circuit water chemistry with metering amines began to be put in use in Russia in 2005, and all nuclear power plant units equipped with VVER-1000 reactors have been shifted to operate with this water chemistry for the past seven years. Owing to the use of water chemistry with metering amines, the amount of products from corrosion of structural materials entering into the volume of steam generators has been reduced, and the flow-accelerated corrosion rate of pipelines and equipment has been slowed down. The article presents data on conducting water chemistry in nuclear power plant units with VVER-1000 reactors for the secondary coolant system equipment made without using copper-containing alloys. Statistical data are presented on conducting ammonia-morpholine and ammonia-ethanolamine water chemistries in new-generation operating power units with VVER-1000 reactors with an increased level of pH. The values of cooling water leaks in turbine condensers the tube system of which is made of stainless steel or titanium alloy are given.

  15. Leaf Leachate Chemistry: Regional Variation Across Three Watersheds in the Northeastern United States

    NASA Astrophysics Data System (ADS)

    Wheeler, K. I.; Hudson, J. E.; Levia, D. F., Jr.; Winters, C. G.; Inamdar, S. P.; Vaughan, M.; Chace, J.

    2015-12-01

    During the autumn, leaf leachate plays a significant and influential role in a forested ecosystem's hydrologic and biogeochemical cycles. As trees prepare for winter dormancy and future spring growth, they undergo resorption, senescence, and leaf abscission. How do these phenological changes affect the dissolved organic matter (DOM) chemistry of leaf leachates? Despite numerous studies into the factors that affect resorption efficiencies and the DOM signatures of leaf-litter leachate, little work has been done to look at the temporal effects of leaf-litter leachate on multiple watersheds in a region. In order to gain a better understanding of the physiological functional ecology of leaves in autumn in different watersheds, we examined changes in fluorescent DOM (FDOM) of Fagus grandifolia (American beech) leaf leachate from field sites in Maryland, Rhode Island, and Vermont. At each site, leaves were collected during three distinct phenological stages: fresh, senescing, and fresh litter. Leaves were collected at each site during their respective peaks for each phenological phase and then were sequentially measured, dried, and submerged in Nanopure deionized water. Leachate samples were analyzed for macronutrient concentrations and FDOM indexes, including specific ultraviolent absorbance at 254nm, humification index, spectral slope ratio, percent protein-like fluorescence, fluorescence index, and biological index. Preliminary results from Maryland suggest that, throughout autumn, the percent protein-like fluorescence and spectral slope ratio both decrease, fluorescence index remains relatively constant, and the humification index tends to increase. By investigating the temporal ecological roles of leaf-litter leachate in three different watersheds, we will be able to more accurately determine the effects of autumnal leaf changes on watersheds at the regional scale.

  16. Sources and Chemistry of Mercury over the Eastern United States during the NOMADSS Campaign (Invited)

    NASA Astrophysics Data System (ADS)

    Jaegle, L.; Jaffe, D. A.; Selin, N. E.; Shah, V.; Gratz, L.; Ambrose, J. L.; Giang, A.; Song, S.; Cantrell, C. A.; Mauldin, L.; Campos, T. L.; Weinheimer, A. J.; Flocke, F. M.

    2013-12-01

    The NOMADSS (Nitrogen Oxidants Mercury Aerosols Distribution Sources and Sinks) campaign used the NCAR/NSF C-130 aircraft to measure total mercury (HgT), gaseous elemental mercury (GEM), and reactive mercury (RM) over the Eastern United States from June 1 to July 15 2013. The two main scientific goals of the mercury component of NOMADSS were to 1) constrain emissions of mercury from major source regions in the United States and 2) quantify the distribution and chemical transformations of mercury in the troposphere. Here, we present an overview of the mercury observations, obtained downwind of urban areas (Chicago, Indianapolis, Pittsburgh, Houston, Birmingham) and power plants (Ohio River Valley, Alabama, Texas), as well as in large-scale horizontal transects, and vertical profiles. Elevated concentrations of RM (>300 pg/m3) were observed on several occasions in dry air masses in the free troposphere over Eastern Texas and off of the Carolina coast. We will present comparisons of these observations to results from the GEOS-Chem Hg simulation, focusing on the ability of the model to reproduce HgT concentrations over sources regions and elevated RM concentrations in the free troposphere.

  17. Chemistry and catalysis of coal liquefaction: catalytic and thermal upgrading of coal liquid and hydrogenation of CO to produce fuels. Quarterly progress report, October-December 1979

    SciTech Connect

    Wiser, W.H.

    1980-08-01

    Studies of the chemistry and catalysis of coal hydrogenation have been initiated with the construction of a flow reactor for extraction of coal and the development of analytical techniques. Work was initiated on the design of a rotor for /sup 13/C nuclear magnetic resonance of solid coal and extracted coal. Studies on momentum, heat and mass transfer in a fluidized bed simulated conditions for coal hydrogenation and were used to investigate effects of particle size and solids loading. The catalytic upgrading of coal-derived liquids is investigated by studies of the catalytic denitrogenation, desulfurization, deoxygenation and cracking of model compounds. Aging of Co-Mo catalysts was found to reduce the number of active sites but not the nature of the sites. A Raney catalyst is being developed for the hydrogenation of carbon monoxide. Temperature programmed desorption was used to study the properties of an iron manganese oxide catalyst previously shown to give high yields of C/sub 2/-C/sub 10/ hydrocarbons.

  18. Developing and Evaluating an Eighth Grade Curriculum Unit That Links Foundational Chemistry to Biological Growth: Paper 5--Using Teacher Measures to Evaluate the Promise of the Intervention

    ERIC Educational Resources Information Center

    Flanagan, Jean C.; Herrmann-Abell, Cari F.; Roseman, Jo Ellen

    2013-01-01

    AAAS (American Association for the Advancement of Science) is collaborating with BSCS (Biological Sciences Curriculum Study) in the development of a curriculum unit for eighth grade students that connects fundamental chemistry and biology concepts to better prepare them for high school biology. Recognizing that teachers play an influential role in…

  19. Gazing at the Hand: A Foucaultian View of the Teaching of Manipulative Skills to Introductory Chemistry Students in the United States and the Potential for Transforming Laboratory Instruction

    ERIC Educational Resources Information Center

    Demeo, Stephen

    2005-01-01

    Many studies of chemistry have described the rise of the academic chemical laboratory and laboratory skills in the United States as a result of famous men, important discoveries, and international influences. What is lacking is a perspective of the manifestations of the balances of power and knowledge between teacher and student. A Foucaultian…

  20. Developing and Evaluating an Eighth Grade Curriculum Unit That Links Foundational Chemistry to Biological Growth. Paper #1: Selecting Core Ideas and Practices -- An Iterative Process

    ERIC Educational Resources Information Center

    Roseman, Jo Ellen; Herrmann-Abell, Cari; Flanagan, Jean; Kruse, Rebecca; Howes, Elaine; Carlson, Janet; Roth, Kathy; Bourdelat-Parks, Brooke

    2013-01-01

    Researchers at AAAS and BSCS have developed a six-week unit that aims to help middle school students learn important chemistry ideas that can be used to explain growth and repair in animals and plants. By integrating core physical and life science ideas and engaging students in the science practices of modeling and constructing explanations, the…

  1. Developing and Evaluating an Eighth Grade Curriculum Unit That Links Foundational Chemistry to Biological Growth: Changing the Research-Based Curriculum

    ERIC Educational Resources Information Center

    Kruse, Rebecca; Howes, Elaine V.; Carlson, Janet; Roth, Kathleen; Bourdelat-Parks, Brooke; Roseman, Jo Ellen; Herrmann-Abell, Cari F.; Flanagan, Jean C.

    2013-01-01

    Much of modern biology has become increasingly chemical in character. Not surprisingly, students often have trouble understanding key ideas in biology because they lack foundational chemistry ideas. AAAS and BSCS are collaborating to develop and study a curriculum unit that supports students' ability to explain a variety of biological processes…

  2. Chemical Equilibrium, Unit 4: Equilibria in Acid-Base Systems. A Computer-Enriched Module for Introductory Chemistry. Student's Guide and Teacher's Guide.

    ERIC Educational Resources Information Center

    Settle, Frank A., Jr.

    Presented are the teacher's guide and student materials for one of a series of self-instructional, computer-based learning modules for an introductory, undergraduate chemistry course. The student manual for this acid-base equilibria unit includes objectives, prerequisites, pretest, a discussion of equilibrium constants, and 20 problem sets.…

  3. Effect of Historical Interactions among Land Use, Atmospheric Chemistry and Climate on the Carbon Balance of the Northeastern United States

    NASA Astrophysics Data System (ADS)

    Kicklighter, D. W.; Lu, X.; Melillo, J. M.; Yang, P.; Rosenzweig, B.; Vorosmarty, C. J.; Gross, B.; Stewart, R.

    2013-12-01

    Ecosystems in the Northeastern United States have experienced a variety of human disturbances since 1700 including land-use change (e.g., creation and abandonment of agricultural land, timber harvest, urbanization, suburbanization), air pollution (enhanced atmospheric nitrogen deposition and concentrations of carbon dioxide and ozone), and climate change (e.g., enhanced air temperatures and precipitation). Here we use a terrestrial biogeochemistry model with spatially-explicit time series data sets of land use, atmospheric chemistry and climate to examine the influence of these human disturbances on the carbon balance of the region. Overall, the Northeastern United States has lost about 0.9 Pg C since 1700. After losing 4.0 Pg C between 1700 and 1935, primarily from the conversion of forests to croplands and pastures, the region has gained 3.1 Pg C between 1935 and 2005, primarily from regrowing forests on abandoned agricultural lands. Carbon sequestration has been enhanced in these regrowing forests by 0.8 Pg C from atmospheric nitrogen deposition and 0.5 Pg C from carbon dioxide fertilization since 1860, but diminished by 0.1 Pg C from ozone pollution since 1948. The large area of impervious surfaces in urban/suburban areas has limited carbon sequestration in these areas to 0.03 Pg C over the study period, which has been mostly compensated by the concurrent effects of climate on carbon loss (-0.02 Pg C) from the region. Protecting forests will be vital for obtaining a positive carbon balance in the Northeastern United States in the future.

  4. Stratospheric chemistry

    SciTech Connect

    Brune, W.H. )

    1991-01-01

    Advances in stratospheric chemistry made by investigators in the United States from 1987 to 1990 are reviewed. Subject areas under consideration include photochemistry of the polar stratosphere, photochemistry of the global stratosphere, and assessments of inadvertent modification of the stratosphere by anthropogenic activity. Particular attention is given to early observations and theories, gas phase chemistry, Antarctic observations, Arctic observations, odd-oxygen, odd-hydrogen, odd-nitrogen, halogens, aerosols, modeling of stratospheric ozone, and reactive nitrogen effects.

  5. Chemistry of lakes in designated wilderness areas in the western United States.

    PubMed

    Eilers, J M; Brakke, D F; Landers, D H; Overton, W S

    1989-04-01

    A synoptic survey of 719 lakes representing an estimated 10,393 lakes in mountainous areas of the western United States was conducted in autumn 1985. Nearly two-thirds of the study lakes were located in wilderness areas or national parks and were sampled by ground access. The results of a comparability study of 45 wilderness lakes accessed by helicopter and ground crews indicated that the data were generally indistinguishable, making it possible to use data from lakes sampled by ground crews without modification. Wilderness lakes had lower acid neutralizing capacity (ANC), base cations, sulfate, and dissolved organic carbon than nonwilderness lakes throughout the West. The highest estimated number (849) and percentage (42.1) of low ANC (≤50 μeq L(-1)) wilderness lakes were located in California; the lowest number (66) was located in the Southern Rockies. The Sierra Nevada contained an estimated 808 low ANC lakes, representing the largest subpopulation of low ANC lakes associated with an individual mountain range in the West. Wilderness lakes in selected geographic areas of the Rocky Mountains generally contained higher concentrations of major ions than lakes in the far West and the concentrations generally increased from the Northern to the Southern Rockies. Comparison of wilderness lakes in the West with lakes in the Adirondack Park, New York, and the Boundary Waters Canoe Area/Voyagers National Park in Northeastern Minnesota showed that western lakes are highly sensitive resources that currently exhibit little evidence of anthropogenic acidification. Although wilderness lakes do not exhibit symptoms of chronic acidification, short-term depression of pH and ANC from snowmelt and thunderstorms occur and episodic acidification influenced by anthropogenic sources cannot be discounted on the basis of this survey.

  6. Aerosol and precipitation chemistry in the southwestern United States: spatiotemporal trends and interrelationships

    PubMed Central

    Sorooshian, A.; Shingler, T.; Harpold, A.; Feagles, C. W.; Meixner, T.; Brooks, P. D.

    2013-01-01

    This study characterizes the spatial and temporal patterns of aerosol and precipitation composition at six sites across the United States Southwest between 1995 and 2010. Precipitation accumulation occurs mostly during the wintertime (December–February) and during the monsoon season (July–September). Rain and snow pH levels are usually between 5–6, with crustal-derived species playing a major role in acid neutralization. These species (Ca2+, Mg2+, K+, Na+) exhibit their highest concentrations between March and June in both PM2.5 and precipitation due mostly to dust. Crustal-derived species concentrations in precipitation exhibit positive relationships with SO42−, NO3−, and Cl–, suggesting that acidic gases likely react with and partition to either crustal particles or hydrometeors enriched with crustal constituents. Concentrations of particulate SO42− show a statistically significant correlation with rain SO42− unlike snow SO42−, which may be related to some combination of the vertical distribution of SO42− (and precursors) and the varying degree to which SO42−-enriched particles act as cloud condensation nuclei versus ice nuclei in the region. The coarse : fine aerosol mass ratio was correlated with crustal species concentrations in snow unlike rain, suggestive of a preferential role of coarse particles (mainly dust) as ice nuclei in the region. Precipitation NO3− : SO42− ratios exhibit the following features with potential explanations discussed: (i) they are higher in precipitation as compared to PM2.5; (ii) they exhibit the opposite annual cycle compared to particulate NO3− : SO42− ratios; and (iii) they are higher in snow relative to rain during the wintertime. Long-term trend analysis for the monsoon season shows that the NO3− : SO42− ratio in rain increased at the majority of sites due mostly to air pollution regulations of SO42− precursors. PMID:24432030

  7. Aerosol and precipitation chemistry in the southwestern United States: spatiotemporal trends and interrelationships.

    PubMed

    Sorooshian, A; Shingler, T; Harpold, A; Feagles, C W; Meixner, T; Brooks, P D

    2013-08-01

    This study characterizes the spatial and temporal patterns of aerosol and precipitation composition at six sites across the United States Southwest between 1995 and 2010. Precipitation accumulation occurs mostly during the wintertime (December-February) and during the monsoon season (July-September). Rain and snow pH levels are usually between 5-6, with crustal-derived species playing a major role in acid neutralization. These species (Ca(2+), Mg(2+), K(+), Na(+)) exhibit their highest concentrations between March and June in both PM2.5 and precipitation due mostly to dust. Crustal-derived species concentrations in precipitation exhibit positive relationships with [Formula: see text], [Formula: see text], and Cl(-), suggesting that acidic gases likely react with and partition to either crustal particles or hydrometeors enriched with crustal constituents. Concentrations of particulate [Formula: see text] show a statistically significant correlation with rain [Formula: see text] unlike snow [Formula: see text], which may be related to some combination of the vertical distribution of [Formula: see text] (and precursors) and the varying degree to which [Formula: see text]-enriched particles act as cloud condensation nuclei versus ice nuclei in the region. The coarse : fine aerosol mass ratio was correlated with crustal species concentrations in snow unlike rain, suggestive of a preferential role of coarse particles (mainly dust) as ice nuclei in the region. Precipitation [Formula: see text] : [Formula: see text] ratios exhibit the following features with potential explanations discussed: (i) they are higher in precipitation as compared to PM2.5; (ii) they exhibit the opposite annual cycle compared to particulate [Formula: see text] : [Formula: see text] ratios; and (iii) they are higher in snow relative to rain during the wintertime. Long-term trend analysis for the monsoon season shows that the [Formula: see text] : [Formula: see text] ratio in rain increased at the

  8. Aerosol and precipitation chemistry in the southwestern United States: spatiotemporal trends and interrelationships

    NASA Astrophysics Data System (ADS)

    Sorooshian, A.; Shingler, T.; Harpold, A.; Feagles, C. W.; Meixner, T.; Brooks, P. D.

    2013-04-01

    This study characterizes the spatial and temporal patterns of aerosol and precipitation composition at six sites across the United States Southwest between 1995 and 2010. Precipitation accumulation occurs mostly during the wintertime (December-February) and during the monsoon season (July-September). Rain and snow pH levels are usually between 5-6, with crustal-derived species playing a major role in acid neutralization. These species (Ca2+, Mg2+, K+,Na+) exhibit their highest concentrations between March and June in both PM2.5 and precipitation due mostly to dust. Crustal-derived species concentrations in precipitation exhibit positive relationships with SO42-, NO3-, and Cl-, suggesting that acidic gases likely react with and partition to either crustal particles or hydrometeors enriched with crustal constituents. Concentrations of particulate SO42- show a statistically significant correlation with rain SO42- unlike snow SO42-, which may be related to some combination of the vertical distribution of SO42- (and precursors) and the varying degree to which SO42--enriched particles act as cloud condensation nuclei versus ice nuclei in the region. The coarse : fine aerosol mass ratio was correlated with crustal species concentrations in snow unlike rain, suggestive of a preferential role of coarse particles (mainly dust) as ice nuclei in the region. Precipitation NO3- : SO42- ratios exhibit the following features with potential explanations discussed: (i) they are higher in precipitation as compared to PM2.5; (ii) they exhibit the opposite annual cycle compared to particulate NO3- : SO42- ratios; and (iii) they are higher in snow relative to rain during the wintertime. Long-term trend analysis for the monsoon season shows that the NO3- : SO42- ratio in rain decreased at the majority of sites due mostly to air pollution regulations of SO42- precursors.

  9. Aerosol and precipitation chemistry in the southwestern United States: spatiotemporal trends and interrelationships

    NASA Astrophysics Data System (ADS)

    Sorooshian, A.; Shingler, T.; Harpold, A.; Feagles, C. W.; Meixner, T.; Brooks, P. D.

    2013-08-01

    This study characterizes the spatial and temporal patterns of aerosol and precipitation composition at six sites across the United States Southwest between 1995 and 2010. Precipitation accumulation occurs mostly during the wintertime (December-February) and during the monsoon season (July-September). Rain and snow pH levels are usually between 5-6, with crustal-derived species playing a major role in acid neutralization. These species (Ca2+, Mg2+, K+, Na+) exhibit their highest concentrations between March and June in both PM2.5 and precipitation due mostly to dust. Crustal-derived species concentrations in precipitation exhibit positive relationships with SO42-, NO3-, and Cl-, suggesting that acidic gases likely react with and partition to either crustal particles or hydrometeors enriched with crustal constituents. Concentrations of particulate SO42- show a statistically significant correlation with rain SO42- unlike snow SO42-, which may be related to some combination of the vertical distribution of SO42- (and precursors) and the varying degree to which SO42--enriched particles act as cloud condensation nuclei versus ice nuclei in the region. The coarse : fine aerosol mass ratio was correlated with crustal species concentrations in snow unlike rain, suggestive of a preferential role of coarse particles (mainly dust) as ice nuclei in the region. Precipitation NO3- : SO42- ratios exhibit the following features with potential explanations discussed: (i) they are higher in precipitation as compared to PM2.5; (ii) they exhibit the opposite annual cycle compared to particulate NO3- : SO42- ratios; and (iii) they are higher in snow relative to rain during the wintertime. Long-term trend analysis for the monsoon season shows that the NO3- : SO42- ratio in rain increased at the majority of sites due mostly to air pollution regulations of SO42- precursors.

  10. Conducting First Quarter Labs with Few Chemicals.

    ERIC Educational Resources Information Center

    Kelly, Michael J.

    2002-01-01

    Outlines chemistry labs used during the first quarter of study and advises about framing the course for students. Topics of the labs include observation; blind observation; measurement, determination of conversion factors, and percent error; taking and reporting data over time; and density. (DDR)

  11. Quarterly coal report, January--March 1993

    SciTech Connect

    Not Available

    1993-08-20

    The United States produced 242 million short tons of coal in the first quarter of 1993, a decrease of 6 percent (14 million short tons) from the amount produced during the first quarter of 1992. The decrease was due to a decline in production east of the Mississippi River. All major coal-producing States in this region had lower coal production levels led by West Virginia, which produced 5 million short tons less coal. The principal reasons for the overall drop in coal output compared to a year earlier were: A decrease in demand for US coal in foreign markets; a slower rate of producer/distributor stock build-up; and a drawn-down of electric utility coal stocks. Distribution of US coal in the first quarter of 1993 was 10 million short tons lower than in the first quarter of 1992, with 5 million short tons less distributed to both electric utilities and overseas markets. The average price of coal delivered to electric utilities during the first quarter of 1993 was $28.65 per short ton, the lowest value since the first quarter of 1980. Coal consumption in the first quarter of 1993 was 230 million short tons, 4 percent higher than in the first quarter of 1992, due primarily to a 5-percent increase in consumption at electric utility plants. Total consumer stocks, at 153 million short tons, and electric utility stocks, at 144 million short tons, were at their lowest quarterly level since the end of 1989. US. coal exports totaled 19 million short tons, 6 million short tons less than in the first quarter of 1992, and the lowest quarterly level since 1988. The decline was primarily due to a 1-million-short-ton drop in exports to each of the following destinations: Italy, France, Belgium and Luxembourg, and Canada.

  12. Long-term trends in stream water and precipitation chemistry at five headwater basins in the northeastern United States

    USGS Publications Warehouse

    Clow, D.W.; Mast, M.A.

    1999-01-01

    Stream water data from five headwater basins in the northeastern United States covering water years 1968-1996 and precipitation data from eight nearby precipitation monitoring sites covering water years 1984-1996 were analyzed for temporal trends in chemistry using the nonparametric seasonal Kendall test. Concentrations of SO4 declined at three of five streams during 1968,1996 (p < 0.1), and all of the streams exhibited downward trends in SO4 over the second half of the period (1984-1996). Concentrations of SO4 in precipitation declined at seven of eight sites from 1984 to 1996, and the magnitudes of the declines (-0.7 to -2.0 ??eq L-1 yr-1) generally were similar to those of stream water SO4. These results indicate that changes in precipitation SO4 were of sufficient magnitude to account for changes in stream water SO4. Concentrations of Ca + Mg declined at three of five streams and five of eight precipitation sites from 1984 to 1996. Precipitation acidity decreased at five of eight sites during the same period, but alkalinity increased in only one stream. In most cases the decreases in stream water SO4 were similar in magnitude to declines in stream water Ca + Mg, which is consistent with the theory of leaching by mobile acid anions in soils. In precipitation the magnitudes of SO4 declines were similar to those of hydrogen, and declines in Ca + Mg were much smaller. This indicates that recent decreases in SO4 deposition are now being reflected in reduced precipitation acidity. The lack of widespread increases in stream water alkalinity, despite the prevalence of downward trends in Stream water SO4, suggests that at most sites, increases in stream water pH and acid-neutralizing capacity may be delayed until higher soil base-saturation levels are achieved.

  13. History of Chemistry.

    ERIC Educational Resources Information Center

    Servos, John W.

    1985-01-01

    Discusses the development of chemistry in the United States by considering: (1) chemistry as an evolving body of ideas/techniques, and as a set of conceptual resources affecting and affected by the development of other sciences; and (2) chemistry related to the history of American social and economic institutions and practices. (JN)

  14. Chemistry and Art.

    ERIC Educational Resources Information Center

    Berry, Martyn

    1999-01-01

    Describes a Chemistry and Art project developed for secondary students and teachers sponsored by the National Gallery and The Royal Society of Chemistry in the United Kingdom. Discusses aspects of the techniques used in creating five paintings as well as the chemistry involved in their making, deterioration, conservation, and restoration.…

  15. Land cover change impacts on atmospheric chemistry: simulating projected large-scale tree mortality in the United States

    NASA Astrophysics Data System (ADS)

    Geddes, J. A.; Heald, C. L.; Silva, S. J.; Martin, R. V.

    2015-10-01

    Land use and land cover changes impact climate and air quality by altering the exchange of trace gases between the Earth's surface and atmosphere. Large-scale tree mortality that is projected to occur across the United States as a result of insect and disease may therefore have unexplored consequences for tropospheric chemistry. We develop a land use module for the GEOS-Chem global chemical transport model to facilitate simulations involving changes to the land surface, and to improve consistency across land-atmosphere exchange processes. The model is used to test the impact of projected national-scale tree mortality risk through 2027 estimated by the 2012 USDA Forest Service National Insect and Disease Risk Assessment. Changes in biogenic emissions alone decrease monthly mean O3 by up to 0.4 ppb, but reductions in deposition velocity compensate or exceed the effects of emissions yielding a net increase in O3 of more than 1 ppb in some areas. The O3 response to emissions is controlled by the ratio of baseline NOx : VOC concentrations, suggesting that in addition to the degree of land cover change, tree mortality impacts depend on whether a region is NOx-limited or NOx-saturated. Consequently, air quality (as diagnosed by the number of days that average 8 h O3 exceeds 65 ppb) improves in polluted environments where changes in emissions are more important than changes to dry deposition, but worsens in clean environments where changes to dry deposition are the more important term. Biogenic secondary organic aerosol loadings are significantly affected across the US, decreasing by 5-10 % across many regions, and by more than 25 % locally. Tree mortality could therefore impact background aerosol loadings by between 0.5 to 2 μg m-3. Changes to reactive nitrogen oxide abundance and partitioning are also locally important. These simulations suggest that changes in biosphere-atmosphere exchange must be considered when predicting future air quality and climate. We point to

  16. Land cover change impacts on atmospheric chemistry: simulating projected large-scale tree mortality in the United States

    NASA Astrophysics Data System (ADS)

    Geddes, Jeffrey A.; Heald, Colette L.; Silva, Sam J.; Martin, Randall V.

    2016-02-01

    Land use and land cover changes impact climate and air quality by altering the exchange of trace gases between the Earth's surface and atmosphere. Large-scale tree mortality that is projected to occur across the United States as a result of insect and disease may therefore have unexplored consequences for tropospheric chemistry. We develop a land use module for the GEOS-Chem global chemical transport model to facilitate simulations involving changes to the land surface, and to improve consistency across land-atmosphere exchange processes. The model is used to test the impact of projected national-scale tree mortality risk through 2027 estimated by the 2012 USDA Forest Service National Insect and Disease Risk Assessment. Changes in biogenic emissions alone decrease monthly mean O3 by up to 0.4 ppb, but reductions in deposition velocity compensate or exceed the effects of emissions yielding a net increase in O3 of more than 1 ppb in some areas. The O3 response to the projected change in emissions is affected by the ratio of baseline NOx : VOC concentrations, suggesting that in addition to the degree of land cover change, tree mortality impacts depend on whether a region is NOx-limited or NOx-saturated. Consequently, air quality (as diagnosed by the number of days that 8 h average O3 exceeds 70 ppb) improves in polluted environments where changes in emissions are more important than changes to dry deposition, but worsens in clean environments where changes to dry deposition are the more important term. The influence of changes in dry deposition demonstrated here underscores the need to evaluate treatments of this physical process in models. Biogenic secondary organic aerosol loadings are significantly affected across the US, decreasing by 5-10 % across many regions, and by more than 25 % locally. Tree mortality could therefore impact background aerosol loadings by between 0.5 and 2 µg m-3. Changes to reactive nitrogen oxide abundance and partitioning are also locally

  17. Strategic petroleum reserve. Quarterly report

    SciTech Connect

    1995-08-15

    The Strategic Petroleum Reserve reduces the Nation`s vulnerability to oil supply disruptions. Its existence provides a formidable deterrent to the use of oil as a political instrument and an effective response mechanism should a disruption occur. The Strategic Petroleum Reserve was created pursuant to the Energy Policy and Conservation Act of December 22, 1975 (Public Law 94-163). Its purposes are to reduce the impact of disruptions in supplies of petroleum products and to carry out obligations of the United States under the Agreement on an International Energy Program. Section 165(a) of the Act requires the submission of Annual Reports and Section 165(b)(1) requires the submission of Quarterly Reports. This Quarterly Report highlights activities undertaken during the second quarter of calendar year 1995, including: inventory of petroleum products stored in the Reserve; current and projected storage capacity, analysis of existing or anticipated problems with the acquisition and storage of petroleum products, and future expansion of storage capacity; funds obligated by the Secretary from the SPR Petroleum Account and the Strategic Petroleum Reserve Account during the prior calendar quarter and in total; and major environmental actions completed, in progress, or anticipated.

  18. Quarterly coal report

    SciTech Connect

    Young, P.

    1996-05-01

    The Quarterly Coal Report (QCR) provides comprehensive information about U.S. coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (Public Law 93-275), as amended. This report presents detailed quarterly data for October through December 1995 and aggregated quarterly historical data for 1987 through the third quarter of 1995. Appendix A displays, from 1987 on, detailed quarterly historical coal imports data, as specified in Section 202 of the Energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons.

  19. 6. Interior of quarters (executive officer's quarters), living room, looking ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. Interior of quarters (executive officer's quarters), living room, looking west - Naval Air Station Chase Field, Quarters S, Essex Street, .45 mile South-Southeast of intersection of Texas State Highway 202 & Independence Street, Beeville, Bee County, TX

  20. 3. Southwest side of quarters (executive officer's quarters), looking northeast ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. Southwest side of quarters (executive officer's quarters), looking northeast - Naval Air Station Chase Field, Quarters S, Essex Street, .45 mile South-Southeast of intersection of Texas State Highway 202 & Independence Street, Beeville, Bee County, TX

  1. 1. North side of quarters (executive officer's quarters), looking southeast ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. North side of quarters (executive officer's quarters), looking southeast - Naval Air Station Chase Field, Quarters S, Essex Street, .45 mile South-Southeast of intersection of Texas State Highway 202 & Independence Street, Beeville, Bee County, TX

  2. 4. South side of quarters (executive officer's quarters), looking north ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. South side of quarters (executive officer's quarters), looking north - Naval Air Station Chase Field, Quarters S, Essex Street, .45 mile South-Southeast of intersection of Texas State Highway 202 & Independence Street, Beeville, Bee County, TX

  3. 2. West side of quarters (executive officer's quarters), looking east ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. West side of quarters (executive officer's quarters), looking east - Naval Air Station Chase Field, Quarters S, Essex Street, .45 mile South-Southeast of intersection of Texas State Highway 202 & Independence Street, Beeville, Bee County, TX

  4. 5. East side of quarters (executive officer's quarters), looking west ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. East side of quarters (executive officer's quarters), looking west - Naval Air Station Chase Field, Quarters S, Essex Street, .45 mile South-Southeast of intersection of Texas State Highway 202 & Independence Street, Beeville, Bee County, TX

  5. Contextual view of quarters no. 2 quarters no. 1, and ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Contextual view of quarters no. 2 quarters no. 1, and water tower, looking southwest. - Sacramento National Wildlife Refuge, Headquarters Complex, Quarters No. 2, 752 County Road 99W, Willows, Glenn County, CA

  6. 19 CFR 159.34 - Certified quarterly rate.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    .... (a) Countries for which quarterly rate is certified. For the currency of each of the following foreign countries, there will be published in the Customs Bulletin, for the quarter beginning January 1..., Singapore, Spain, Sri Lanka (Ceylon), Sweden, Switzerland, Thailand, United Kingdom, Venezuela. (b)...

  7. 19 CFR 159.34 - Certified quarterly rate.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    .... (a) Countries for which quarterly rate is certified. For the currency of each of the following foreign countries, there will be published in the Customs Bulletin, for the quarter beginning January 1..., Singapore, Spain, Sri Lanka (Ceylon), Sweden, Switzerland, Thailand, United Kingdom, Venezuela. (b)...

  8. 19 CFR 159.34 - Certified quarterly rate.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    .... (a) Countries for which quarterly rate is certified. For the currency of each of the following foreign countries, there will be published in the Customs Bulletin, for the quarter beginning January 1..., Singapore, Spain, Sri Lanka (Ceylon), Sweden, Switzerland, Thailand, United Kingdom, Venezuela. (b)...

  9. Unit Cells

    ERIC Educational Resources Information Center

    Olsen, Robert C.; Tobiason, Fred L.

    1975-01-01

    Describes the construction of unit cells using clear plastic cubes which can be disassembled, and one inch cork balls of various colors, which can be cut in halves, quarters, or eighths, and glued on the inside face of the cube, thus simulating a unit cell. (MLH)

  10. Natural gas imports and exports: First quarter report 1995

    SciTech Connect

    1995-07-01

    The Office of Fuels Programs prepares quarterly reports summarizing the data provided by companies authorized to import or export natural gas. Companies are required, as a condition of their authorizations, to file quarterly reports with the OFP. This quarter`s focus is market penetration of gas imports into New England. Attachments show the following: % takes to maximum firm contract levels and weighted average per unit price for the long-term importers, volumes and prices of gas purchased by long-term importers and exporters, volumes and prices for gas imported on short-term or spot market basis, and gas exported short-term to Canada and Mexico.

  11. Metallurgical Laboratory Hazardous Waste Management Facility groundwater monitoring report. First quarter 1995

    SciTech Connect

    1995-06-01

    During first quarter 1995, samples from AMB groundwater monitoring wells at the Metallurgical Laboratory Hazardous Waste Management Facility (Met Lab HWMF) were analyzed for selected heavy metals, field measurements, radionuclides, volatile organic compounds, and other constituents. Six parameters exceeded standards during the quarter. As in previous quarters, tetrachloroethylene and trichloroethylene exceeded final Primary Drinking Water Standards (PDWS). Total organic halogens exceeded its Savannah River Site (SRS) Flag 2 criterion during first quarter 1995 as in fourth quarter 1994. Aluminum, iron, and manganese, which were not analyzed for during fourth quarter 1994, exceeded the Flag 2 criteria in at least two wells each during first quarter 1995. Groundwater flow direction and rate in the M-Area Aquifer Zone were similar to previous quarters. Conditions affecting the determination of groundwater flow directions and rates in the Upper Lost Lake Aquifer Zone, Lower Lost Lake Aquifer Zone, and the Middle Sand Aquifer Zone of the Crouch Branch Confining Unit were also similar to previous quarters.

  12. Variability in stream chemistry in relation to urban development and biological condition in seven metropolitan areas of the United States, 1999-2004

    USGS Publications Warehouse

    Beaulieu, Karen M.; Bell, Amanda H.; Coles, James F.

    2012-01-01

    Beginning in 1999, the U.S. Geological Survey National Water Quality Assessment Program investigated the effects of urban development on stream ecosystems in nine metropolitan study areas across the United States. In seven of these study areas, stream-chemistry samples were collected every other month for 1 year at 6 to 10 sites. Within a study area, the sites collectively represented a gradient of urban development from minimally to highly developed watersheds, based on the percentage of urban land cover; depending on study area, the land cover before urban development was either forested or agricultural. The stream-chemistry factors measured in the samples were total nitrogen, total phosphorus, chloride, and pesticide toxicity. These data were used to characterize the stream-chemistry factors in four ways (hereafter referred to as characterizations)—seasonal high-flow value, seasonal low-flow value, the median value (representing a single integrated value of the factor over the year), and the standard deviation of values (representing the variation of the factor over the year). Aquatic macroinvertebrate communities were sampled at each site to infer the biological condition of the stream based on the relative sensitivity of the community to environmental stressors. A Spearman correlation analysis was used to evaluate relations between (1) urban development and each characterization of the stream-chemistry factors and (2) the biological condition of a stream and the different characterizations of chloride and pesticide toxicity. Overall, the study areas where the land cover before urban development was primarily forested had a greater number of moderate and strong relations compared with the study areas where the land cover before urban development was primarily agriculture; this was true when urban development was correlated with the stream-chemistry factors (except chloride) and when chloride and pesticide toxicity was correlated with the biological condition

  13. Strategic Petroleum Reserve quarterly report

    SciTech Connect

    Not Available

    1992-08-15

    The Strategic Petroleum Reserve (SPR) was created pursuant to the Energy Policy and Conservation Act (EPCA) Public Law 94-163, approved on December 22, 1975, and extended in July 1985, June 1989, March 1990, and September 1990, to reduce the impact of disroptions in petroleum supplies and to carry out obligations of the United States under the Agreement on an International Energy Program. The Strategic Petroleum Reserve Quarterly Report is submitted in accordance with section 165(b) of the Energy Policy and Conservation Act, as amended, which requires that the Secretary of Energy submit quarterly reports to Congress on activities undertaken with respect to the Strategic Petroleum Reserve. Since the Strategic Petroleum Reserve crude oil storage facilities program for the 750 minion barrels was completed in 1991, this August 15, 1992, Strategic Petroleum Reserve Quarterly Report focuses on activities related primarily to the storage facilities status, oil acquisition, budget, and cost of the Reserve during the period April 1, 1992, through June 30, 1992.

  14. English Leadership Quarterly. 1991.

    ERIC Educational Resources Information Center

    Strickland, James, Ed.

    1991-01-01

    These four issues of the English Leadership Quarterly represent the quarterly for 1991. Articles in number 1 deal with whole language and include: "CEL: Shorter and Better" (Myles D. Eley); "Toward a New Philosophy of Language Learning" (Kathleen Strickland); "Whole Language: Implications for Secondary Classrooms" (Barbara King-Shaver); "Whole…

  15. CSSEDC Quarterly. 1990.

    ERIC Educational Resources Information Center

    Strickland, James, Ed.

    1990-01-01

    These four issues of the CSSEDC Quarterly (Conference for Secondary School English Department Chairpersons) represent the quarterly for 1990. Articles in number 1 deal with student teachers and include: "Student Teaching: Smoothing Out the Rough Spots" (Susan B. Argyle and Fred C. Feitler); "A Partnership for Urban Student Teaching" (Jerome T.…

  16. CSSEDC Quarterly. 1989.

    ERIC Educational Resources Information Center

    Strickland, James, Ed.

    1989-01-01

    These four issues of the CSSEDC Quarterly (Conference for Secondary School English Department Chairpersons) represent the quarterly for 1989. Articles in number 1 deal with professional development, and include: "Sharing Expertise within a Department" (Martha R. Dolly); "Empowerment Develops a Computer Writing Center" (Norman L. Frey); "Videotapes…

  17. 4. Northeast corner of quarters (executive officer's quarters), looking onto ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Northeast corner of quarters (executive officer's quarters), looking onto Quarter R (commanding officer's quarters), looking southeast - Naval Air Station Chase Field, Texas State Highway 202, 4.8 miles east of intersection of Texas State Highway 202 & U.S. State Highway 181, Beeville, Bee County, TX

  18. Tropospheric chemistry over the lower Great Plains of the United States. 2. Trace gas profiles and distributions

    SciTech Connect

    Luke, W.T.; Dickerson, R.R.; Ryan, W.F.; Pickering, K.E.; Nunnermacker, L.J. )

    1992-12-20

    Convective clouds and thunderstorms redistribute air pollutants vertically, and by altering the chemistry and radiative balance of the upper troposphere, these local actions can have global consequences. To study these effects, measurements of trace gases ozone, O[sub 3], carbon monoxide, CO, and odd nitrogen were made aboard the NCAR Sabreliner on 18 flights over the southern Great Plains during June 1985. To demonstrate chemical changes induced by vertical motions in the atmosphere and to facilitate comparison with computer model calculations, these data were categorized according to synoptic flow patterns. Part 1 of this two-part paper details the alternating pulses of polar and maritime air masses that dominate the vertical mixing in this region. In this paper, trace gas measurements are presented as altitude profiles (0-12 km) with statisitcal distributions of mixing ratios for each species in each flow pattern. The polar flow regime is characterized by northwesterly winds, subsiding air, and convective stability. The maritime regime is characterized by southerly surface winds, convective instability, and a deep planetary boundary layer PBL; uniformly high concentrations of trace gases were found up to 4 km on one flight. During frontal passage both stratiform and convective clouds mix pollutants more uniformly into the middle and upper levels; high mixing ratios of CO are found at all altitudes, and O[sub 3] levels are highest of any category, implicating photochemical production. These results illustrate the importance of convection in tropospheric chemistry. Use of average trace gas profiles or eddy diffusion parameterized vertical mixing can lead to errors of 30 to 50% in O[sub 3] and CO concentrations and an order of magnitude for odd nitrogen. 80 refs., 18 figs., 9 tabs.

  19. Applied Meteorology Unit Quarterly Report, Second Quarter FY-13

    NASA Technical Reports Server (NTRS)

    Bauman, William; Crawford, Winifred; Watson, Leela; Shafer, Jaclyn; Huddleston, Lisa

    2013-01-01

    The AMU team worked on six tasks for their customers: (1) Ms. Crawford continued work on the objective lightning forecast task for airports in east-central Florida, and began work on developing a dual-Doppler analysis with local Doppler radars, (2) Ms. Shafer continued work for Vandenberg Air Force Base on an automated tool to relate pressure gradients to peak winds, (3) Dr. Huddleston continued work to develop a lightning timing forecast tool for the Kennedy Space Center/Cape Canaveral Air Force Station area, (4) Dr. Bauman continued work on a severe weather forecast tool focused on east-central Florida, (5) Mr. Decker began developing a wind pairs database for the Launch Services Program to use when evaluating upper-level winds for launch vehicles, and (6) Dr. Watson began work to assimilate observational data into the high-resolution model configurations, she created for Wallops Flight Facility and the Eastern Range.

  20. Applied Meteorology Unit (AMU) Quarterly Report. Third Quarter FY-10

    NASA Technical Reports Server (NTRS)

    Bauman, William; Crawford, Winifred; Barrett, Joe; Watson, Leela; Wheeler, Mark

    2010-01-01

    By providing a global view with a level playing field (no region missed because of unfavorable surface conditions or political boundaries), satellites have made major contributions to improved monitoring and understanding of our constantly changing planet. The global view has allowed surprising realizations like the relative sparsity of lightning strikes over oceans and the large-scale undulations on the massive Antarctic ice sheet. It has allowed the tracking of all sorts of phenomena, including aerosols, both natural and anthropogenic,as they move with the atmospheric circulation and impact weather and human health. But probably nothing that the global view allows is more important in the long term than its provision of unbiased data sets to address the issue of global change, considered by many to be among the most important issues facing humankind today. With satellites we can monitor atmospheric temperatures at all latitudes and longitudes, and obtain a global average that lessens the likelihood of becoming endlessly mired in the confusions brought about by the certainty of regional differences. With satellites we can monitor greenhouse gases such as CO2 not just above individual research stations but around the globe. With satellites we can monitor the polar sea ice covers, as we have done since the late 1970s, determining and quantifying the significant reduction in Arctic sea ice and the slight growth in Antarctic sea ice over that period. With satellites we can map the full extent and changes in the Antarctic stratospheric ozone depletions that were first identified from a single ground station; and through satellite data we have witnessed from afar land surface changes brought about by humans both intentionally, as with wide-scale deforestation, and unintentionally, as with the decay of the Aral Sea. The satellite data are far from sufficient for all that we need in order to understand the global system and forecast its changes, as we also need sophisticated climate models, in situ process studies, and data sets that extend back well before the introduction of satellite technology. Nuomthc)cmm, the repetitive, global view provided by satellites is contributing in a major way to our improved recognition of how the Earth is changing, a recognition that is none too soon in view of the magnitude of the impacts that humans can now have.

  1. Applied Meteorology Unit (AMU) Quarterly Report Fourth Quarter FY-13

    NASA Technical Reports Server (NTRS)

    Bauman, William; Crawford, Winifred; Watson, Leela; Shafer, Jaclyn; Huddleston, Lisa

    2013-01-01

    Ms. Shafer completed the task to determine relationships between pressure gradients and peak winds at Vandenberg Air Force Base (VAFB), and began developing a climatology for the VAFB wind towers; Dr. Huddleston completed the task to develop a tool to help forecast the time of the first lightning strike of the day in the Kennedy Space Center (KSC)/Cape Canaveral Air Force Station (CCAFS) area; Dr. Bauman completed work on a severe weather forecast tool focused on the Eastern Range (ER), and also developed upper-winds analysis tools for VAFB and Wallops Fl ight Facility (WFF); Ms. Crawford processed and displayed radar data in the software she will use to create a dual-Doppler analysis over the east-central Florida and KSC/CCAFS areas; Mr. Decker completed developing a wind pairs database for the Launch Services Program to use when evaluating upper-level winds for launch vehicles; Dr. Watson continued work to assimilate observational data into the high-resolution model configurations she created for WFF and the ER.

  2. Applied Meteorology Unit (AMU) Quarterly Report Fourth Quarter FY-14

    NASA Technical Reports Server (NTRS)

    Bauman, William H.; Crawford, Winifred C.; Watson, Leela R.; Shafer, Jaclyn

    2014-01-01

    Ms. Crawford completed the final report for the dual-Doppler wind field task. Dr. Bauman completed transitioning the 915-MHz and 50-MHz Doppler Radar Wind Profiler (DRWP) splicing algorithm developed at Marshall Space Flight Center (MSFC) into the AMU Upper Winds Tool. Dr. Watson completed work to assimilate data into model configurations for Wallops Flight Facility (WFF) and Kennedy Space Center/Cape Canaveral Air Force Station (KSC/CCAFS). Ms. Shafer began evaluating the a local high-resolution model she had set up previously for its ability to forecast weather elements that affect launches at KSC/CCAFS. Dr. Watson began a task to optimize the data-assimilated model she just developed to run in real time.

  3. Applied Meteorology Unit Quarterly Report. First Quarter FY-13

    NASA Technical Reports Server (NTRS)

    2013-01-01

    The AMU team worked on five tasks for their customers: (1) Ms. Crawford continued work on the objective lightning forecast task for airports in east-central Florida. (2) Ms. Shafer continued work on the task for Vandenberg Air Force Base to create an automated tool that will help forecasters relate pressure gradients to peak wind values. (3) Dr. Huddleston began work to develop a lightning timing forecast tool for the Kennedy Space Center/Cape Canaveral Air Force Station area. (3) Dr. Bauman began work on a severe weather forecast tool focused on east-central Florida. (4) Dr. Watson completed testing high-resolution model configurations for Wallops Flight Facility and the Eastern Range, and wrote the final report containing the AMU's recommendations for model configurations at both ranges.

  4. Applied Meteorology Unit (AMU) Quarterly Report First Quarter FY-14

    NASA Technical Reports Server (NTRS)

    Bauman, William Henry; Crawford, Winifred C.; Shafer, Jaclyn A.; Watson, Leela R.; Huddleston, Lisa L.; Decker, Ryan K.

    2014-01-01

    NASA's LSP and other programs at Vandenberg Air Force Base (VAFB) use wind forecasts issued by the 30th Operational Support Squadron (30 OSS) to determine if they need to limit activities or protect property such as a launch vehicle due to the occurrence of warning level winds at VAFB in California. The 30 OSS tasked the AMU to provide a wind forecasting capability to improve wind warning forecasts and enhance the safety of their customers' operations. This would allow 30 OSS forecasters to evaluate pressure gradient thresholds between pairs of regional observing stations to help determine the onset and duration of warning category winds. Development of such a tool will require that solid relationships exist between wind speed and the pressure gradient of one or more station pairs. As part of this task, the AMU will also create a statistical climatology of meteorological observations from the VAFB wind towers.

  5. Atoms-First Curriculum: A Comparison of Student Success in General Chemistry

    ERIC Educational Resources Information Center

    Esterling, Kevin M.; Bartels, Ludwig

    2013-01-01

    We present an evaluation of the impact of an atoms-first curriculum on student success in introductory chemistry classes and find that initially a lower fraction of students obtain passing grades in the first and second quarters of the general chemistry series. This effect is more than reversed for first-quarter students after one year of…

  6. Effects of soot-induced snow albedo change on snowpack and hydrological cycle in western United States based on Weather Research and Forecasting chemistry and regional climate simulations

    SciTech Connect

    Qian, Yun; Gustafson, William I.; Leung, Lai-Yung R.; Ghan, Steven J.

    2009-02-14

    Radiative forcing induced by soot on snow is a major anthropogenic forcing affecting the global climate. However, it is uncertain how the soot-induced snow albedo perturbation affects regional snowpack and the hydrological cycle. In this study we simulated the deposition of soot aerosol on snow and investigated the resulting impact on snowpack and the surface water budget in the western United States. A yearlong simulation was performed using the chemistry version of the Weather Research and Forecasting model (WRF-Chem) to determine an annual budget of soot deposition, followed by two regional climate simulations using WRF in meteorology-only mode, with and without the soot-induced snow albedo perturbations. The chemistry simulation shows large spatial variability in soot deposition that reflects the localized emissions and the influence of the complex terrain. The soot-induced snow albedo perturbations increase the net solar radiation flux at the surface during late winter to early spring, increase the surface air temperature, reduce snow water equivalent amount, and lead to reduced snow accumulation and less spring snowmelt. These effects are stronger over the central Rockies and southern Alberta, where soot deposition and snowpack overlap the most. The indirect forcing of soot accelerates snowmelt and alters stream flows, including a trend toward earlier melt dates in the western United States. The soot-induced albedo reduction initiates a positive feedback process whereby dirty snow absorbs more solar radiation, heating the surface and warming the air. This warming causes reduced snow depth and fraction, which further reduces the regional surface albedo for the snow covered regions. Our simulations indicate that the change of maximum snow albedo induced by soot on snow contributes to 60% of the net albedo reduction over the central Rockies. Snowpack reduction accounts for the additional 40%.

  7. (Pesticide chemistry)

    SciTech Connect

    Barnthouse, L.W.

    1990-09-04

    This report summarizes a trip by L. W. Barnthouse of the Environmental Sciences Division (ESD), Oak Ridge National Laboratory (ORNL), to Hamburg, Federal Republic of Germany (FRG), where he participated in the 7th International Congress of Pesticide Chemistry. He chaired a workshop on experimental systems for determining effects of pesticides on nontarget organisms and gave an oral presentation at a symposium on pesticide risk assessment. Before returning to the United States, Dr. Barnthouse visited the Netherlands Institute for Sea Research in Texel, the Netherlands.

  8. Medical and Health Divisions quarterly report, July, August, September, 1948

    SciTech Connect

    1995-11-01

    This quarterly report describes progress in four programs entitled (1) The Metabolic Properties of Plutonium and Allied Materials, (2) Biological Studies of Radiation Effects, (3) Biological Effects of Radiation from External and Internal Sources and (4) Health Chemistry and Physics. Progress in each program is separately indexed and abstracted for the database.

  9. LFCM vitrification technology: Quarterly progress report, July-September 1987

    SciTech Connect

    Brouns, R.A.; Allen, C.R.; Powell, J.A.; Bates, S.O.; Bray, L.A.; Budden, M.J.; Dierks, R.D.; Elliott, M.L.; Elmore, M.R.; Faletti, D.W.; Farnsworth, R.K.; Holton, L.K. Jr.; Kuhn, W.L.; Mellinger, G.B.; Nakaoka, R.K.; Peterson, M.E.; Piepel, G.F.; Powell, J.A.; Pulsipher, B.A.; Reimus, M.A.H.; Surma, J.E.; Wiemers, K.D.

    1988-09-01

    This report describes the progress in developing, testing, applying and documenting liquid-fed ceramic melter vitrification technology. Progress in the following technical subject areas during the fourth quarter of FY 1987 is discussed: melting process chemistry and glass development, feed preparation and transfer systems, canister filling and handling systems, and process/product modeling and control.

  10. Low-Cost Solar Array Project. Experimental process system development unit for producing semiconductor-grade silicon using the silane-to-silicon process. Quarterly progress report, October-December 1980

    SciTech Connect

    Not Available

    1980-01-01

    Progress is reported on the engineering design, fabrication, assembly, operation, economic analysis, and process support R and D for an Experimental Process System Development Unit (EPSDU) for producing semiconductor-grade silicon using the silane-to-silicon process. Most of the process related equipment has been ordered and is being fabricated. Equipment and building foundations have been completed at the EPSDU site, and all the steel was erected for the gantry. The switch gear/control building and the melter building will be completed during the next quarter. The data collection system design is progressing. Various computer programs are being written which will be used to convert electrical, pneumatic and other raw signals into engineering values. The free-space reactor development work was completed with a final 12-hour run in which the free-space reactor PDU ran flawlessly. Also, the quality control method development task was completed. Slim rods were grown from seed silicon rods for subsequent float zone operation and impurity characterization. An excellent quality epitaxial film was deposited on a silicon wafer. Both undoped ad doped films were deposited and the resistivity of the films have been measured. (WHK)

  11. Liquid phase methanol LaPorte PDU [process development unit]: Modification, operation, and support studies; Quarterly technical progress report No. 7, 1 January--31 March 1989

    SciTech Connect

    1989-07-20

    The work under this contract will be to implement and test certain process improvements identified through the engineering studies completed to demonstrate the capability of long-term catalyst activity maintenance, and to perform process and design engineering work that is generic to a scaled-up Liquid Phase Methanol (LPMEOH) facility. A series of process development unit (PDU) runs will be performed to extend the testing of the process improvements. A parallel research program will be conducted to enhance the LPMEOH technical data base to improve the likelihood of commercialization of the LPMEOH process. Research is briefly discussed on catalyst activation. 5 figs.

  12. Stream chemistry in the eastern United States. 1. Synoptic survey design, acid-base status, and regional patterns

    SciTech Connect

    Kaufmann, P.R.; Herlihy, A.T.; Mitch, M.E.; Messer, J.J. ); Overton, W.S. )

    1991-04-01

    To assess the regional acid-base status of streams in the mid-Atlantic and southern US, spring base flow chemistry was surveyed in a probability sample of 500 stream reaches representing a population of 64,300 reaches (224,000 km). Approximately half of the streams had acid-neutralizing capacity (ANC) {le} 200 {mu}eq L{sup {minus}1}. Acidic (ANC {le} 0) streams were located in the highlands of the Mid-Atlantic region (southern New York to southern Virginia, 2,330 km), in coastal lowlands of the Mid-Atlantic (2,600 km), and in Florida (462 km). Acidic streams were rare (less than 1%) in the highlands of the Southeast. Inorganic monomeric aluminum (Al{sub im}) concentrations were highest in acidic streams of the Mid-Atlantic Highlands where over 70% of the acidic streams had Al{sub im} greater than 100 {mu}g L{sup {minus}1}, a concentration above which deleterious biological effects have frequently been reported. Dissolved organic carbon concentrations were much higher in lowland coastal streams, compared with inland streams. The authors data supports a hypothesis that atmospheric sources and watershed retention control regional patterns in streamwater sulfate concentrations. Most stream watersheds retain the vast majority of the total nitrogen loading from wet deposition. The data suggest, however, that some deposition nitrogen may be reaching streams in the Northern Appalachians.

  13. Design, construction, operation, and evaluation of a prototype culm-combustion boiler/heater unit. Quarterly technical progress report, October 1-December 31, 1980

    SciTech Connect

    Not Available

    1981-02-01

    This report provides a summary of the work performed on the Prototype Culm Combustion Boiler/Heater Unit, Phase I - Engineering Design and Analysis and Phase II - Prototype Plant Construction during the period October 1, 1980 through December 31, 1980. The objectives of the program as well as the technical progress and problem areas encountered during the reporting period are presented. The final detail design effort was completed and the final design report submitted. Progress on procurement activity authorized by full Phase II release on March 20, 1980, is discussed. Following approval by DOE, a purchase order was placed with the Norflor Construction Corporation for the prototype plant construction which began in November. Construction of the access roadway installation of the electric power, sewer and water lines was completed during this reporting period. Boiler construction continued.

  14. Accelerating resolution-of-the-identity second-order Møller-Plesset quantum chemistry calculations with graphical processing units.

    PubMed

    Vogt, Leslie; Olivares-Amaya, Roberto; Kermes, Sean; Shao, Yihan; Amador-Bedolla, Carlos; Aspuru-Guzik, Alan

    2008-03-13

    The modification of a general purpose code for quantum mechanical calculations of molecular properties (Q-Chem) to use a graphical processing unit (GPU) is reported. A 4.3x speedup of the resolution-of-the-identity second-order Møller-Plesset perturbation theory (RI-MP2) execution time is observed in single point energy calculations of linear alkanes. The code modification is accomplished using the compute unified basic linear algebra subprograms (CUBLAS) library for an NVIDIA Quadro FX 5600 graphics card. Furthermore, speedups of other matrix algebra based electronic structure calculations are anticipated as a result of using a similar approach.

  15. Science: Applied Chemistry I Living With Chemistry, Chemistry of Biology, Matter and Its Changes. Authorized Course of Instruction for the Quinmester Program.

    ERIC Educational Resources Information Center

    Dade County Public Schools, Miami, FL.

    Performance objectives are stated for each of the secondary school units included in this package of instructional guides prepared for the Dade County Florida Quinmester Program. All three units are concerned with chemistry: "Applied Chemistry 1,""Chemistry of Biology," and "Matter and Its Changes." The last unit deals with chemistry at a very…

  16. Metallurgical Laboratory Hazardous Waste Management Facility groundwater monitoring report. First quarter, 1994

    SciTech Connect

    Not Available

    1994-06-01

    During first quarter 1994, samples from AMB groundwater monitoring wells at the Metallurgical Laboratory Hazardous Waste Management Facility (HWMF) were analyzed for selected heavy metals, indicator parameters, radionuclides, volatile organic compounds, and other constituents. Nine parameters exceeded standards during the quarter. As in previous quarters, tetrachloroethylne and trichloroethylene exceeded final Primary Drinking Water Standards (PDWS); in addition, gross alpha and lead exceeded final PDWS during first quarter 1994. Aluminum, iron, manganese, pH, and total organic halogens exceeded the Savannah River Site (SRS) Flag 2 criteria in one or more of the wells. Groundwater flow direction and rate in the water-table unit were similar to previous quarters.

  17. Quarterly Coal Report, April-June 1985

    SciTech Connect

    Not Available

    1985-10-18

    The Quarterly Coal Report provides comprehensive information about coal production, exports, imports, receipts, consumption, and stocks in the United States. The data presented in this report were collected and published by the Energy Information Administration (EIA) to fulfill its data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (P.L. 93-275) as amended. This issue shows detailed quarterly data for April-June 1985, aggregated quarterly historical and projected data for 1980 through 1986, and aggregated annual historical and projected data for 1960 through 1995. All data for 1984 and previous years are final. All 1985 data are preliminary and subject to revision. During the first and second quarters of 1985, the US coal industry continued to return to normal operations after the threat of a strike by US coal miners in 1984. For the first 6 months of 1985 the industry showed the following developments: Coal production was only 2.4% less than in the same period of 1984, when it reached a record January-June total. Coal exports were 10.0% higher than their 1984 level for the same time period. The United States imported 52.3% more coal than it did in the first 6 months of 1984, chiefly from Colombia. Domestic coal consumption reached a record-setting level for January-June, 3.6% greater than the previous record in 1984.

  18. Introducing Second Year Chemistry Students to Research Work through Mini-Projects

    NASA Astrophysics Data System (ADS)

    Dunn, Jeffrey G.; Phillips, David N.

    1998-07-01

    In these so-called "mini-projects" second year students in an Applied Chemistry degree course gain their first insight to studying a chemistry-based problem prior to undertaking a major chemistry project at third year. They cover a range of topics including industrially based problems, improving current experiments in the second year Analytical Chemistry unit, or developing new experiments for future cohorts in Inorganic/Analytical Chemistry units. The class is divided into groups of 3 students, with each group being quite deliberately structured to include students of a range of ability. The program consists of one week for literature searching and four weeks of experimental work Each group is required to submit a joint written report and give an oral presentation to the whole class. The mini-projects provide an alternative experience for students to complement the standard laboratory exercises encountered in other sections of the course. They serve to introduce students on how to work in group situations, while also providing an insight to the type of work they will meet in their future employment. The assessment is based on self and peer assessment within each group, with the contribution of the class supervisor being only one-quarter of the total assessment. Valuable feedback has been obtained from student comments and the vast majority of comments reflect very favourably on the overall concept.

  19. EMSL Quarterly Highlights Report: 1st Quarter, FY08

    SciTech Connect

    Showalter, Mary Ann

    2008-01-28

    The EMSL Quarterly Highlights Report covers the science, staff and user recognition, and publication activities that occurred during the 1st quarter (October 2007 - December 2007) of Fiscal Year 2008.

  20. EMSL Quarterly Highlights Report: FY 2008, 3rd Quarter

    SciTech Connect

    Showalter, Mary Ann

    2008-09-16

    The EMSL Quarterly Highlights Report covers the science, staff and user recognition, and publication activities that occurred during the 1st quarter (October 2007 - December 2007) of Fiscal Year 2008.

  1. EMSL Quarterly Highlights Report: 1st Quarter, Fiscal Year 2009

    SciTech Connect

    Showalter, Mary Ann; Kathmann, Loel E.; Manke, Kristin L.

    2009-02-02

    The EMSL Quarterly Highlights Report covers the science, staff and user recognition, and publication activities that occurred during the 1st quarter (October 2008 - December 2008) of Fiscal Year 2009.

  2. 77 FR 840 - Pricing for 2012 America the Beautiful Quarters® Products and American Eagle Silver Dollars

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-06

    ... United States Mint Pricing for 2012 America the Beautiful Quarters Products and American Eagle Silver... Mint is announcing 2012 pricing for America the Beautiful Quarters products and American Eagle Silver... Quarters Circulating Coin Set TM..... 5.95 America the Beautiful Five Ounce Silver Uncirculated Coin.....

  3. Sources, Chemistry, and Transport of Pollutants over the Eastern United States During the WINTER 2015 Aircraft Campaign

    NASA Astrophysics Data System (ADS)

    Jaegle, L.; Thornton, J. A.; Brown, S. S.; Shah, V.; Lopez-Hilfiker, F.; Lee, B. H.; Haskins, J.; Fibiger, D. L.; McDuffie, E. E.; Sparks, T.; Ebben, C. J.; Wooldridge, P. J.; Cohen, R. C.; Veres, P. R.; Weinheimer, A. J.; Montzka, D. D.; Dibb, J. E.; Schroder, J. C.; Campuzano Jost, P.; Day, D. A.; Jimenez, J. L.; Sullivan, A.; Guo, H.; Weber, R. J.; Green, J. R.; Fiddler, M. N.; Bililign, S.; Campos, T. L.; Apel, E. C.; Blake, N. J.; Hall, S. R.; Ullmann, K.; Wolfe, G. M.; DiGangi, J. P.; Hanisco, T. F.; Leen, J. B.

    2015-12-01

    The Wintertime Investigation of Transport, Emission, and Reactivity (WINTER) campaign used the NCAR/NSF C-130 aircraft to sample the composition of the lower troposphere over the Eastern United States between February 2 and March 13, 2015. The main scientific objectives of WINTER were to: 1) Characterize the chemical transformations of wintertime emissions via multiphase, nocturnal, and photochemical processes, 2) Assess the dominant mechanisms of secondary aerosol formation and quantify the geographical distribution of inorganic and organic aerosol types during winter, 3) Constrain wintertime emission inventories of key pollutants and characterize their export over the North Atlantic. Here, we will present an overview of the WINTER observations obtained during 13 flights near major metropolitan areas (New York City, Washington D.C.-Baltimore, Philadelphia, Pittsburgh, Cincinnati, Atlanta), along the Ohio River Valley, and in aged pollution plumes over the Atlantic Ocean. We will analyze the WINTER observations using the GEOS-Chem chemical transport model in a nested-grid configuration with a 25 km horizontal resolution over N. America, focusing in particular on evaluating current anthropogenic emission inventories and the wintertime budget of reactive nitrogen species.

  4. Natural gas imports and exports, first quarter report 2000

    SciTech Connect

    2000-06-01

    The Office of Natural Gas and Petroleum Import and Export Activities prepares quarterly reports showing natural gas import and export activity. Companies are required to file quarterly reports. Attachments show the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the 5 most recent reporting quarters, volumes and prices of gas purchased by long-term importers and exporters during the past 12 months, volume and price data for gas imported on a short-term or spot market basis, and the gas exported on a short-term or spot market basis to Canada and Mexico.

  5. Metallurgical Laboratory (HWMF) Groundwater Monitoring Report, Fourth Quarter 1994

    SciTech Connect

    Chase, J.A.

    1995-03-01

    Groundwater flow direction and rate in the M-Area Aquifer Zone were similar to previous quarters. Conditions affecting determination of groundwater flow directions and rates in the Upper Lost Lake Aquifer Zone, Lower Lost Lake Aquifer Zone, and the Middle Sand Aquifer Zone of the Crouch Branch Confining Units were also similar to previous quarters. During second quarter 1994, SRS received South Carolina Department of Health and Environmental Control approval for constructing five point-of-compliance wells and two plume definition wells near the Met Lab Hazardous Waste Management Facility. This project began in July 1994 and is complete; however, analytical data from these wells are not yet available.

  6. Natural gas imports and exports, third quarter report 2000

    SciTech Connect

    2000-12-01

    The Office of Natural Gas and Petroleum Import and Export Activities prepares quarterly reports showing natural gas import and export activity. Companies are required to file quarterly reports. Attachments show the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the 5 most recent quarters, volumes and prices of gas purchased by long-term importers and exporters during the past 12 months, volume and price data for gas imported on a short-term or spot market basis, and the gas exported on a short-term or spot market basis to Canada and Mexico.

  7. Natural gas imports and exports, fourth quarter report 1999

    SciTech Connect

    2000-03-01

    The Office of Natural Gas and Petroleum Import and Export Activities prepares quarterly reports showing natural gas import and export activity. Companies are required to file quarterly reports. Attachments show the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the five most recent quarters, volumes and prices of gas purchased by long-term importers and exporters during the past 12 months, volume and price data for gas imported on a short-term or spot market basis, and the gas exported on a short-term or spot market basis to Canada and Mexico.

  8. Short-term energy outlook. Quarterly projections, second quarter 1996

    SciTech Connect

    1996-04-01

    The Energy Information Administration prepares quarterly, short-term energy supply, demand, and price projections. The forecasts in this issue cover the second quarter of 1996 through the fourth quarter of 1997. Changes to macroeconomic measures by the Bureau of Economic Analysis have been incorporated into the STIFS model used.

  9. Quarterly environmental data summary for first quarter 1999

    SciTech Connect

    1999-06-01

    In support of the Weldon Spring Site Remedial Action Project Federal Facilities Agreement, a copy of the Quarterly Environmental Data Summary (QEDS) for the first quarter of 1999 is enclosed. The data presented in this constitute the QEDS. The data, except for air monitoring data and site KPA generated data (uranium analyses), were received from the contract laboratories, verified by the Weldon Spring Site verification group and merged into the database during the first quarter of 1999. KPA results for on-site total uranium analyses performed during first quarter 1999 are included. Air monitoring data presented are the most recent complete sets of quarterly data.

  10. English Leadership Quarterly, 1993.

    ERIC Educational Resources Information Center

    Strickland, James, Ed.

    1993-01-01

    These four issues of the English Leadership Quarterly represent those published during 1993. Articles in number 1 deal with parent involvement and participation, and include: "Opening the Doors to Open House" (Jolene A. Borgese); "Parent/Teacher Conferences: Avoiding the Collision Course" (Robert Perrin); "Expanding Human Resources: Trained…

  11. English Leadership Quarterly, 1995.

    ERIC Educational Resources Information Center

    Kiernan, Henry, Ed.

    1995-01-01

    These 4 issues of the English Leadership Quarterly comprise volume 17, published during 1995. Articles in number 1 deal with multicultural and multiethnic literature, and are, as follows: "Guidelines for Selecting European Ethnic Literature for Interdisciplinary Courses" (Sandra Stotsky); "Striving for Kinship within Diverse Communities" (Peter…

  12. Trustee Quarterly, 1997.

    ERIC Educational Resources Information Center

    Hutchins, Sally, Ed.

    1997-01-01

    These four issues of "Trustee Quarterly" focus on current topics affecting community college trustees. Issue 1 focuses on the learning revolution and serves as a guide for community college trustees. It offers the following feature articles by Terry O'Banion: "Education Reform: Two Waves,""The Second Wave and the Community College,""The House that…

  13. Gifted Education Quarterly, 1998.

    ERIC Educational Resources Information Center

    Fisher, Maurice, Ed.

    1998-01-01

    These four issues of "Gifted Education Quarterly" include the following articles: (1) "Using Test Results To Support Clinical Judgment" (Linda Kreger Silverman), which discusses some of the difficulties in obtaining accurate indications of a child's level of giftedness and the importance of using professional judgment in determining whether tests…

  14. English Leadership Quarterly, 1992.

    ERIC Educational Resources Information Center

    Strickland, James, Ed.

    1992-01-01

    These four issues of the English Leadership Quarterly represent those published during 1992. Articles in number 1 deal with testing assessing, and measuring student performance, and include: "Real Evaluation: Portfolios as an Effective Alternative to Standardized Testing" (Kate Kiefer); "No More Objective Tests, Ever" (Carol Jago); "Process-Based…

  15. Quiet Quincy Quarter. Teacher's Guide [and] Student Materials.

    ERIC Educational Resources Information Center

    Zishka, Phyllis

    This document suggests learning activities, teaching methods, objectives, and evaluation measures for a second grade consumer education unit on quarters. The unit, which requires approximately six hours of class time, reinforces basic social studies and mathematics skills including following sequences of numbers, distinguishing left from right,…

  16. Strategic Petroleum Reserve quarterly report

    SciTech Connect

    Not Available

    1993-08-15

    This Quarterly Report highlights activities undertaken during the second quarter of calendar year 1993, including: inventory of petroleum products stored in the Reserve, under contract and in transit at the end of the calendar quarter; fill rate for the current quarter and projected fill rate for the next calendar quarter; average price of the petroleum products acquired during the calendar quarter; current and projected storage capacity and plans to accelerate the acquisition or construction of such capacity; analysis of existing or anticipated problems with the acquisition and storage of petroleum products, and future expansion of storage capacity; funds obligated by the Secretary from the SPR Petroleum Account and the Strategic Petroleum Reserve Account during the prior calendar quarter and in total; and major environmental actions completed, in progress, or anticipated.

  17. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1983

    1983-01-01

    Presents background information, laboratory procedures, classroom materials/activities, and chemistry experiments. Topics include sublimation, electronegativity, electrolysis, experimental aspects of strontianite, halide test, evaluation of present and future computer programs in chemistry, formula building, care of glass/saturated calomel…

  18. Chemistry Notes

    ERIC Educational Resources Information Center

    School Science Review, 1972

    1972-01-01

    Thirteen ideas are presented that may be of use to chemistry teachers. Topics covered include vitamin C, industrial chemistry, electrical conductivity, electrolysis, alkali metals, vibration modes infra-red, dynamic equilibrium, and some new demonstrations in gaseous combinations. (PS)

  19. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1978

    1978-01-01

    Describes experiments, demonstrations, activities and ideas relating to various fields of chemistry to be used in chemistry courses of secondary schools. Three experiments concerning differential thermal analysis are among these notes presented. (HM)

  20. Chemistry Notes

    ERIC Educational Resources Information Center

    School Science Review, 1976

    1976-01-01

    Described are eight chemistry experiments and demonstrations applicable to introductory chemistry courses. Activities include: measure of lattice enthalpy, Le Chatelier's principle, decarboxylation of soap, use of pocket calculators in pH measurement, and making nylon. (SL)

  1. Colour Chemistry

    ERIC Educational Resources Information Center

    Griffiths, J.; Rattee, I. D.

    1973-01-01

    Discusses the course offerings in pure color chemistry at two universities and the three main aspects of study: dyestuff chemistry, color measurement, and color application. Indicates that there exists a constant challenge to ingenuity in the subject discipline. (CC)

  2. Natural gas imports and exports. Second quarter report, 1998

    SciTech Connect

    1998-11-01

    The Office of Natural Gas and Petroleum Import and Export Activities prepared quarterly reports summarizing the data provided by companies authorized to import or export natural gas. Companies are required, as a condition of their authorizations, to file quarterly reports. This report is for the second quarter of 1998 (April through June). Attachment A shows the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the five most recent reporting quarters. Attachment B shows volumes and prices of gas purchased by long-term importers and exporters during the past 12 months. Attachment C shows volume and price information pertaining to gas imported on a short-term or spot market basis. Attachment D shows the gas exported on a short-term or spot market basis to Canada and Mexico.

  3. Natural gas imports and exports. First quarter report, 1998

    SciTech Connect

    1998-08-01

    The Office of Natural Gas and Petroleum Import and Export Activities prepares quarterly reports summarizing the data provided by companies authorized to import or export natural gas. Companies are required, as a condition of their authorizations, to file quarterly reports. This report is for the first quarter of 1998 (January through March). Attachment A shows the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the five most recent reporting quarters. Attachment B shows volumes and prices of gas purchased by long-term importers and exporters during the past 12 months. Attachment C shows volume and price information pertaining to gas imported on a short-term or spot market basis. Attachment D shows the gas exported on a short-term or spot market basis to Canada and Mexico.

  4. Natural gas imports and exports: Third quarter report, 1998

    SciTech Connect

    1998-12-31

    The Office of Natural Gas and Petroleum Import and Export Activities prepares quarterly reports summarizing the data provided by companies authorized to import or export natural gas. Companies are required, as a condition of their authorizations, to file quarterly reports. This report is for the third quarter of 1998 (July--September). Attachment A shows the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the five most recent calendar quarters. Attachment B shows volumes and prices of gas purchased by long-term importers and exporters during the past 12 months. Attachment C shows volume and price information pertaining to gas imported on a short-term or spot market basis. Attachment D shows the gas exported on a short-term or spot market basis to Canada and Mexico.

  5. Natural gas imports and exports. Fourth quarter report, 1998

    SciTech Connect

    1998-12-31

    The Office of Natural Gas and Petroleum Import and Export Activities prepares quarterly reports summarizing the data provided by companies authorized to import or export natural gas. Companies are required, as a condition of their authorizations, to file quarterly reports. This report is for the fourth quarter of 1998 (October through December). Attachment A shows the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the five most recent reporting quarters. Attachment B shows volumes and prices of gas purchased by long-term importers and exporters during the past 12 months. Attachment C shows volume and price information pertaining to gas imported on a short-term or spot market basis. Attachment D shows the gas exported on a short-term or spot market basis to Canada and Mexico.

  6. Natural gas: Imports and exports third quarter report 1993

    SciTech Connect

    Not Available

    1993-12-31

    The Office of Fuels Programs prepares quarterly reports summarizing the data provided by companies with authorizations to import or export natural gas. Companies are required, as a condition of their authorizations, to file quarterly reports with the OFP. This report is for the third quarter of 1993 (July--September). Attachment A shows the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the five most recent reporting quarters. Attachment B shows volumes and prices of gas purchased by long-term importers and exporters during the past twelve months (October 1992--September 1993). Attachment C shows volume and price information pertaining to gas imported on a short-term or spot market basis. Attachment D shows the gas exported on a short-term or spot market basis to Canada and Mexico.

  7. NO2 columns in the western United States observed from space and simulated by a regional chemistry model and their implications for NOx emissions

    NASA Astrophysics Data System (ADS)

    Kim, S.-W.; Heckel, A.; Frost, G. J.; Richter, A.; Gleason, J.; Burrows, J. P.; McKeen, S.; Hsie, E.-Y.; Granier, C.; Trainer, M.

    2009-06-01

    There are many isolated sources of NOx emissions across the western United States, including electrical power generation plants and urban areas. In this manuscript, two satellite instruments measuring NO2 vertical columns over these sources and an atmospheric chemical-transport model are used to evaluate bottom-up NOx emission inventories, model assumptions, and satellite retrieval algorithms. We carried out simulations with the Weather Research and Forecasting-Chemistry (WRF-Chem) model for the western U.S. domain during the summer of 2005 using measured power plant NOx emissions. Model NO2 vertical columns are compared with a retrieval of the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) satellite instrument data by the University of Bremen and retrievals of the Ozone Monitoring Instrument (OMI) data by the U.S. National Aeronautics and Space Administration (NASA) and a modified version of the NASA OMI retrieval produced by the University of Bremen. For areas dominated by power plant NOx emissions, the model NO2 columns serve as a comparison standard for satellite retrievals because emissions are continuously monitored at all large U.S. power plants. An extensive series of sensitivity tests of the assumptions in both the satellite retrievals and the model are carried out over the Four Corners and San Juan power plants, two adjacent facilities in the northwest corner of New Mexico that together represent the largest NOx point source in the United States. Overall, the SCIAMACHY and OMI NO2 columns over western U.S. power plants agree well with model NO2 columns, with differences between the two being within the variability of the model and satellite. In contrast to regions dominated by power plant emissions, model NO2 columns over large urban areas along the U.S. west coast are approximately twice as large as satellite NO2 columns from SCIAMACHY and OMI retrievals. The discrepancies in urban areas are beyond the sensitivity

  8. Amino-anthraquinone chromophores functionalised with 3-picolyl units: structures, luminescence, DFT and their coordination chemistry with cationic Re(I) di-imine complexes.

    PubMed

    Jones, Jennifer E; Kariuki, Benson M; Ward, Benjamin D; Pope, Simon J A

    2011-04-14

    The syntheses of four new ligands based upon 3-picolyl functionalised amino anthraquinone (AQ) chromophores are described via a one-pot reductive amination procedure giving the desired ligands L1-L4 (L1, 1-(3-picolylamino)anthracene-9,10-dione; L2, 1-hydroxy-4-(3-picolylamino)anthracene-9,10-dione; L3, 1,4-bis(3-picolylamino)anthracene-9,10-dione; L4, 1,5-bis(3-picolylamino)anthracene-9,10-dione). Each ligand was characterised in solution via(1)H and (13)C{(1)H} NMR, with three examples giving single crystal X-ray diffraction data. The structures confirmed the proposed formulations and also revealed the presence of intramolecular H-bonding between the quinone and secondary amine units. The electronic characteristics of the ligands were investigated using a combined experimental/theoretical approach, revealing that in each case absorption in the visible region constitutes significant charge transfer (CT) character, originating from N-(amine)-to-quinone transitions, and is solvent sensitive. Density functional theory (DFT) calculations also suggest that the position of amino-substitution at the AQ core influences the wavelength of the lowest energy feature, by modulation of the HOMO, rather than the LUMO energy. The coordination chemistry of the ligands was probed through reaction with fac-[Re(CO)(3)(di-imine)(MeCN)](BF(4)) where di-imine = 1,10-phenanthroline (phen) and 2,9-dimethyl-1,10-phenanthroline (dmp). Combined structural and spectroscopic studies confirmed that the ligands coordinate to Re(i) exclusively via the pyridyl units, however in the case of L3 only monometallic complexes were isolated. The optical properties of the complexes are dominated by AQ-centred (>425 nm) absorptions superimposed upon (1)MLCT features, as well as diimine-based intra-ligand (<350 nm) transitions. The luminescence properties of the complexes generally display dual emission, which was dependent upon the wavelength of sensitisation, with short-lived AQ fluorescence superimposed

  9. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1982

    1982-01-01

    Presents background information, laboratory procedures, classroom materials/activities, and experiments for chemistry. Topics include superheavy elements, polarizing power and chemistry of alkali metals, particulate carbon from combustion, tips for the chemistry laboratory, interesting/colorful experiments, behavior of bismuth (III) iodine, and…

  10. Coal liquefaction process research quarterly report, October-December 1979

    SciTech Connect

    Bickel, T.C.; Curlee, R.M.; Granoff, B.; Stohl, F.V.; Thomas, M.G.

    1980-03-01

    This quarterly report summarizes the activities of Sandia's continuing program in coal liquefaction process research. The overall objectives are to: (1) provide a fundamental understanding of the chemistry of coal liquefaction; (2) determine the role of catalysts in coal liquefaction; and (3) determine the mechanism(s) of catalyst deactivation. The program is composed of three major projects: short-contact-time coal liquefaction, mineral effects, and catalyst studies. These projects are interdependent and overlap significantly.

  11. LFCM vitrification technology. Quarterly progress report, October-December 1985

    SciTech Connect

    Burkholder, H.C.; Jarrett, J.H.; Minor, J.E.

    1986-09-01

    This report is compiled by the Nuclear Waste Treatment Program and the Hanford Waste Vitrification Program at Pacific Northwest Laboratory to document progress on liquid-fed ceramic melter (LFCM) vitrification technology. Progress in the following technical subject areas during the first quarter of FY 1986 is discussed: melting process chemistry and glass development, feed preparation and transfer systems, melter systems, canister filling and handling systems, off-gas systems, process/product modeling and control, and supporting studies.

  12. Short-term energy outlook. Quarterly projections, Third quarter 1995

    SciTech Connect

    1995-08-02

    The Energy Information Administration (EIA) prepares quarterly, short-term energy supply, demand, and price projections for publication in February, May, August, and November in the Short-Term Energy Outlook (Outlook). An annual supplement analyzes the performance of previous forecasts, compares recent projections with those of other forecasting services, and discusses current topics related to the short-term energy markets. The forecast period for this issue of the Outlook extends from the third quarter of 1995 through the fourth quarter of 1996. Values for the second quarter of 1995, however, are preliminary EIA estimates.

  13. CLUSTER CHEMISTRY

    SciTech Connect

    Muetterties, Earl L.

    1980-05-01

    Metal cluster chemistry is one of the most rapidly developing areas of inorganic and organometallic chemistry. Prior to 1960 only a few metal clusters were well characterized. However, shortly after the early development of boron cluster chemistry, the field of metal cluster chemistry began to grow at a very rapid rate and a structural and a qualitative theoretical understanding of clusters came quickly. Analyzed here is the chemistry and the general significance of clusters with particular emphasis on the cluster research within my group. The importance of coordinately unsaturated, very reactive metal clusters is the major subject of discussion.

  14. Forensic Chemistry

    NASA Astrophysics Data System (ADS)

    Bell, Suzanne

    2009-07-01

    Forensic chemistry is unique among chemical sciences in that its research, practice, and presentation must meet the needs of both the scientific and the legal communities. As such, forensic chemistry research is applied and derivative by nature and design, and it emphasizes metrology (the science of measurement) and validation. Forensic chemistry has moved away from its analytical roots and is incorporating a broader spectrum of chemical sciences. Existing forensic practices are being revisited as the purview of forensic chemistry extends outward from drug analysis and toxicology into such diverse areas as combustion chemistry, materials science, and pattern evidence.

  15. Response of lake chemistry to atmospheric deposition and climate in selected Class I wilderness areas in the western United States, 1993-2009

    USGS Publications Warehouse

    Mast, M. Alisa

    2011-01-01

    The U.S. Geological Survey, in cooperation with the U.S. Department of Agriculture Forest Service, Air Resource Management, conducted a study to evaluate long-term trends in lake-water chemistry for 64 high-elevation lakes in selected Class I wilderness areas in Colorado, Idaho, Utah, and Wyoming during 1993 to 2009. Understanding how and why lake chemistry is changing in mountain areas is essential for effectively managing and protecting high-elevation aquatic ecosystems. Trends in emissions, atmospheric deposition, and climate variables (air temperature and precipitation amount) were evaluated over a similar period of record. A main objective of the study was to determine if changes in atmospheric deposition of contaminants in the Rocky Mountain region have resulted in measurable changes in the chemistry of high-elevation lakes. A second objective was to investigate linkages between lake chemistry and air temperature and precipitation to improve understanding of the sensitivity of mountain lakes to climate variability.

  16. Water chemistry used in the secondary coolant circuit of unit 3 at the rovno nuclear power station involving correction treatment of working medium with lithium hydroxide and ethanolamine

    NASA Astrophysics Data System (ADS)

    Kozlov, V. Ya.; Vlasenko, N. I.; Kozlova, T. Yu.

    2011-03-01

    The all-volatile water chemistry used in the secondary coolant circuit involving correction treatment of the steam generator's boiler water with lithium hydroxide and the ethanolamine water chemistry are analyzed from the viewpoint of their effect on the erosion-corrosion wear of equipment used in the secondary coolant system and damageability of heat-transfer tubes used in PGV-1000M steam generators.

  17. Metallurgical Laboratory Hazardous Waste Management Facility groundwater monitoring report: Third quarter 1993

    SciTech Connect

    Not Available

    1993-12-01

    During third quarter 1993, samples from AMB groundwater monitoring wells at the Metallurgical Laboratory Hazardous Waste Management Facility were analyzed for certain heavy metals, indicator parameters, radionuclides, volatile organic compounds, and other constituents. Eight parameters exceeded standards during the quarter. As in previous quarters, tetrachloroethylene and trichloroethylene exceeded final Primary Drinking Water Standards; and aluminum, iron, lead, manganese, pH, and total organic halogens exceeded the Savannah River Site Flag 2 criteria in one or more of the wells. Groundwater flow direction and rate in the water-table unit were similar to previous quarters.

  18. Metallurgical Laboratory Hazardous Waste Management Facility groundwater monitoring report. Second quarter 1994

    SciTech Connect

    Not Available

    1994-09-01

    During second quarter 1994, samples from AMB groundwater monitoring wells at the Metallurgical Laboratory Hazardous Waste Management Facility were analyzed for selected heavy metals, indicator parameters, radionuclides, volatile organic compounds, and other constituents. Three parameters exceeded standards during the quarter. As in previous quarters, tetrachloroethylene and trichloroethylene exceeded final Primary Drinking Water Standards. Total organic halogens exceeded the Savannah River Site (SRS) Flag 2 criteria in two of the wells. Groundwater flow direction and rate in the M-Area Aquifer Zone were similar to previous quarters. Conditions affecting determination of groundwater flow directions and rates in the Upper Lost Lake Aquifer Zone, Lower Lost Lake Aquifer Zone, and the Middle Sand Aquifer Zone of the Crouch Branch Confining Unit were also similar to previous quarters. During second quarter 1994, SRS received SCDHEC approval for five point-of-compliance wells and two plume definition wells near the Met Lab HWMF. Field work has begun on this project.

  19. Chemistry Cook-Off

    ERIC Educational Resources Information Center

    McCormick, Cynthia

    2012-01-01

    For this activity, high school chemistry students compete in a cooking contest. They must determine the chemical and physical changes that occur in the food they prepare, present their recipe as a step-by-step procedure similar to a lab procedure, identify chemicals in the food, and present all measurements in both metric and English units. The…

  20. Chemistry between the stars

    NASA Technical Reports Server (NTRS)

    Gammon, R. H.

    1976-01-01

    A unit is presented for the secondary school teacher of physics, chemistry, astronomy, or earth sciences. Included are a list of reference materials, teaching aids, and projects. Discussion questions and a glossary are also provided. Concepts developed are: the nature of interstellar space, spectroscopy, molecular signals from space and interstellar molecules and other areas of astronomy.

  1. Chemistry Notes

    ERIC Educational Resources Information Center

    School Science Review, 1972

    1972-01-01

    Twelve new chemistry expermiments are described. Broad areas covered include atomic structure, solubility, gaseous diffusion, endothermic reactions, alcohols, equilibrium, atomic volumes, and some improvised apparatus. (PS)

  2. International Space Station USOS Crew Quarters Development

    NASA Technical Reports Server (NTRS)

    Broyan, James Lee, Jr.; Borrego, Melissa Ann; Bahr, Juergen F.

    2008-01-01

    The International Space Station (ISS) United States Operational Segment (USOS) currently provides a Temporary Sleep Station (TeSS) as crew quarters for one crewmember in the Laboratory Module. The Russian Segment provides permanent crew quarters (Kayutas) for two crewmembers in the Service Module. The TeSS provides limited electrical, communication, and ventilation functionality. A new permanent rack sized USOS ISS Crew Quarters (CQ) is being developed. Up to four CQs can be installed into the Node 2 element to increase the ISS crewmember size to six. The new CQs will provide private crewmember space with enhanced acoustic noise mitigation, integrated radiation reduction material, controllable airflow, communication equipment, redundant electrical systems, and redundant caution and warning systems. The rack sized CQ is a system with multiple crewmember restraints, adjustable lighting, controllable ventilation, and interfaces that allow each crewmember to personalize their CQ workspace. Providing an acoustically quiet and visually isolated environment, while ensuring crewmember safety, is critical for obtaining crewmember rest and comfort to enable long term crewmember performance. The numerous human factor, engineering, and program considerations during the concept, design, and prototyping are outlined in the paper.

  3. Revitalizing chemistry laboratory instruction

    NASA Astrophysics Data System (ADS)

    McBride, Phil Blake

    This dissertation involves research in three major domains of chemical education as partial fulfillment of the requirements for the Ph.D. program in chemistry at Miami University with a major emphasis on chemical education, and concurrent study in organic chemistry. Unit I, Development and Assessment of a Column Chromatography Laboratory Activity, addresses the domain of Instructional Materials Development and Testing. This unit outlines the process of developing a publishable laboratory activity, testing and revising that activity, and subsequently sharing that activity with the chemical education community. A laboratory activity focusing on the separation of methylene blue and sodium fluorescein was developed to demonstrate the effects of both the stationary and mobile phase in conducting a separation. Unit II, Bringing Industry to the Laboratory, addresses the domain of Curriculum Development and Testing. This unit outlines the development of the Chemistry of Copper Mining module, which is intended for use in high school or undergraduate college chemistry. The module uses the learning cycle approach to present the chemistry of the industrial processes of mining copper to the students. The module includes thirteen investigations (three of which are web-based and ten which are laboratory experiments) and an accompanying interactive CD-ROM, which provides an explanation of the chemistry used in copper mining with a virtual tour of an operational copper mine. Unit III, An Alternative Method of Teaching Chemistry. Integrating Lecture and the Laboratory, is a project that addresses the domain of Research in Student Learning. Fundamental Chemistry was taught at Eastern Arizona College as an integrated lecture/laboratory course that met in two-hour blocks on Monday, Wednesday, and Friday. The students taking this integrated course were compared with students taking the traditional 1-hour lectures held on Monday, Wednesday, and Friday, with accompanying 3-hour lab on

  4. Forensic Chemistry--A Symposium Collection.

    ERIC Educational Resources Information Center

    Journal of Chemical Education, 1985

    1985-01-01

    Presents a collection of articles to provide chemistry teachers with resource materials to add forensic chemistry units to their chemistry courses. Topics range from development of forensic science laboratory courses and mock-crime scenes to forensic serology and analytical techniques. (JN)

  5. Robert Walsh's "American Review": America's First Quarterly Magazine.

    ERIC Educational Resources Information Center

    Garrison, Bruce

    The "American Review of History and Politics and General Repository of Literature and State Papers" ("American Review") was the first quarterly magazine published in the United States (1811-12). Its editor, Robert Walsh, was considered to be one of the leading men of letters of his era. Located in Philadelphia, the 26-year-old Walsh developed a…

  6. Comparison of Biology Student Performance in Quarter and Semester Systems

    ERIC Educational Resources Information Center

    Gibbens, Brian; Williams, Mary A.; Strain, Anna K.; Hoff, Courtney D. M.

    2015-01-01

    Curricula at most colleges and universities in the United States are scheduled according to quarters or semesters. While each schedule has several potential advantages over the other, it is unclear what effect each has on student performance. This study compares biology student performance during the two and a half years before and after the 1999…

  7. Characterization of Solids Collected from H-Area Injection Wells and Injection Tank Chemistry from both F- and H-Area Water Treatment Units (WTUs)

    SciTech Connect

    Serkiz, S.M.

    1999-04-15

    This study suggests that a strong poitential exists for both chemical and biological fouling of the injection wells at the F- and H Area remediation systems. To further the potential, an evaluation of WTU process chemistry, characterization of the natural groundwater geochemistry, and analysis of microbiological activity should be performed. This report summarizes the results.

  8. Balancing Chemical Reactions With Matrix Methods and Computer Assistance. Applications of Linear Algebra to Chemistry. Modules and Monographs in Undergraduate Mathematics and Its Applications Project. UMAP Unit 339.

    ERIC Educational Resources Information Center

    Grimaldi, Ralph P.

    This material was developed to provide an application of matrix mathematics in chemistry, and to show the concepts of linear independence and dependence in vector spaces of dimensions greater than three in a concrete setting. The techniques presented are not intended to be considered as replacements for such chemical methods as oxidation-reduction…

  9. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1981

    1981-01-01

    Outlines laboratory procedures, demonstrations, teaching suggestions, and content information related to chemistry. Topics include polarizing power; calorimetry and momentum; microcomputers in school chemistry; a constant-volume dispenser for liquids, floating magnets, and crystal lattices; preparation of chromium; and solvent polarity and…

  10. Response of Stream Chemistry During Base Flow to Gradients of Urbanization in Selected Locations Across the Conterminous United States, 2002-04

    USGS Publications Warehouse

    Sprague, Lori A.; Harned, Douglas A.; Hall, David W.; Nowell, Lisa H.; Bauch, Nancy J.; Richards, Kevin D.

    2007-01-01

    During 2002-2004, the U.S. Geological Survey's National Water-Quality Assessment Program conducted a study to determine the effects of urbanization on stream water quality and aquatic communities in six environmentally heterogeneous areas of the conterminous United States--Atlanta, Georgia; Raleigh-Durham, North Carolina; Milwaukee-Green Bay, Wisconsin; Dallas-Fort Worth, Texas; Denver, Colorado; and Portland, Oregon. This report compares and contrasts the response of stream chemistry during base flow to urbanization in different environmental settings and examines the relation between the exceedance of water-quality benchmarks and the level of urbanization in these areas. Chemical characteristics studied included concentrations of nutrients, dissolved pesticides, suspended sediment, sulfate, and chloride in base flow. In three study areas where the background land cover in minimally urbanized basins was predominantly forested (Atlanta, Raleigh-Durham, and Portland), urban development was associated with increased concentrations of nitrogen and total herbicides in streams. In Portland, there was evidence of mixed agricultural and urban influences at sites with 20 to 50 percent urban land cover. In two study areas where agriculture was the predominant background land cover (Milwaukee-Green Bay and Dallas-Fort Worth), concentrations of nitrogen and herbicides were flat or decreasing as urbanization increased. In Denver, which had predominantly shrub/grass as background land cover, nitrogen concentrations were only weakly related to urbanization, and total herbicide concentrations did not show any clear pattern relative to land cover - perhaps because of extensive water management in the study area. In contrast, total insecticide concentrations increased with increasing urbanization in all six study areas, likely due to high use of insecticides in urban applications and, for some study areas, the proximity of urban land cover to the sampling sites. Phosphorus

  11. Predicting First-Quarter Test Scores from the New Medical College Admission Test.

    ERIC Educational Resources Information Center

    Cullen, Thomas J.; And Others

    1980-01-01

    The predictive validity of the new Medical College Admission Test as it relates to end-of-quarter examinations in anatomy, histology, physiology, biochemistry, and "ages of man" is presented. Results indicate that the Science Knowledge assessment areas of chemistry and physics and the Science Problems subtest were most useful in predicting student…

  12. LFCM (liquid-fed ceramic melter) vitrification technology: Quarterly progress report, October-December 1986

    SciTech Connect

    Brouns, R.A.; Allen, C.R.; Powell, J.A.

    1987-09-01

    This report describes the progress in developing, testing, applying, and documenting liquid-fed ceramic melter (LFCM) vitrification technology. Progress in the following technical subject areas during the first quarter of FY 1987 is discussed. Topics include melting process chemistry and glass development, feed preparation and transfer systems, melter systems, off-gas systems, canister filling and handling systems, and process/product modeling.

  13. Circumstellar chemistry

    NASA Technical Reports Server (NTRS)

    Glassgold, Alfred E.; Huggins, Patrick J.

    1987-01-01

    The study of the outer envelopes of cool evolved stars has become an active area of research. The physical properties of CS envelopes are presented. Observations of many wavelengths bands are relevant. A summary of observations and a discussion of theoretical considerations concerning the chemistry are summarized. Recent theoretical considerations show that the thermal equilibrium model is of limited use for understanding the chemistry of the outer CS envelopes. The theoretical modeling of the chemistry of CS envelopes provides a quantitive test of chemical concepts which have a broader interest than the envelopes themselves.

  14. Sleeping porch through french doors off master bedroom (southern unit) ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Sleeping porch through french doors off master bedroom (southern unit) - Fitzsimons General Hospital, Officers' Quarters, West Charlie Kelly Boulevard & South Hutton Street, Southwest Corner, Aurora, Adams County, CO

  15. Interior, bedroom at northeast corner of east unit Fitzsimons ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Interior, bedroom at northeast corner of east unit - Fitzsimons General Hospital, Noncomissioned Officers' Quarters, West Loosley Avenue & North Hickey Street, Southeast Corner, Aurora, Adams County, CO

  16. Interior, living room toward front porch of east unit ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Interior, living room toward front porch of east unit - Fitzsimons General Hospital, Noncomissioned Officers' Quarters, West Loosley Avenue & North Hickey Street, Southeast Corner, Aurora, Adams County, CO

  17. Short-term energy outlook. Quarterly projections, third quarter 1996

    SciTech Connect

    1996-07-01

    The Energy Information Administration (EIA) prepares quarterly, short-term energy supply, demand, and price projections for publication in January, April, July, and October in the Outlook. The forecast period for this issue of the Outlook extends from the third quarter of 1996 through the fourth quarter of 1997. Values for the second quarter of 1996, however, are preliminary EIA estimates (for example, some monthly values for petroleum supply and disposition are derived in part from weekly data reported in the Weekly Petroleum Status Report) or are calculated from model simulations using the latest exogenous information available (for example, electricity sales and generation are simulated using actual weather data). The historical energy data, compiled in the third quarter 1996 version of the Short-Term Integrated Forecasting System (STIFS) database, are mostly EIA data regularly published in the Monthly energy Review, Petroleum Supply Monthly, and other EIA publications. Minor discrepancies between the data in these publications and the historical data in this Outlook are due to independent rounding. The STIFS database is archived quarterly and is available from the National Technical Information Service.

  18. Short-term energy outlook: Quarterly projections. Second quarter 1995

    SciTech Connect

    1995-05-02

    The Energy Information Administration (EIA) prepares quarterly, short-term energy supply, demand, and price projections for publication in February, May, August, and November in the Short-Term Energy Outlook (Outlook). An annual supplement analyzes the performance of previous forecasts, compares recent projections with those of other forecasting services, and discusses current topics related to the short-term energy markets. (See Short-Term Energy Outlook Annual Supplement, DOE/EIA-0202.) The forecast period for this issue of the Outlook extends from the second quarter of 1995 through the fourth quarter of 1996. Values for the first quarter of 1995, however, are preliminary EIA estimates (for example, some monthly values for petroleum supply and disposition are derived in part from weekly data reported in the Weekly Petroleum Status Report) or are calculated from model simulations using the latest exogenous information available (for example, electricity sales and generation are simulated using actual weather data). The historical energy data, compiled into the second quarter 1995 version of the Short-Term Integrated Forecasting System (STIFS) database, are mostly EIA data regularly published in the Monthly Energy Review, Petroleum Supply Monthly, and other EIA publications. Minor discrepancies between the data in these publications and the historical data in this Outlook are due to independent rounding. The STIFS database is archived quarterly and is available from the National Technical Information Service.

  19. Quarterly coal report, July--September 1997

    SciTech Connect

    1998-02-01

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks. Coke production consumption, distribution, imports, and exports data are also provided. This report presents detailed quarterly data for July through September 1997 and aggregated quarterly historical data for 1991 through the second quarter of 1997. Appendix A displays, from 1991 on, detailed quarterly historical coal imports data. 72 tabs.

  20. Tidd PFBC Demonstration Project. Quarterly report, January--March 1994

    SciTech Connect

    Not Available

    1994-04-01

    This is the 28th Technical Progress Report submitted to the Department of Energy in connection with the Cooperative Agreement between the DOE and the Ohio Power Company for the Tidd PFBC Demonstration Plant. This report covers the period of January 1, 1994 to March 31, 1994. Major activities during this period include: (1) The unit operated for 850 hours on coal, bringing the grand total for coal fire through the end of the quarter to 6318 hours. (2) The unit availability for the first quarter was 40.1%. (3) There were twelve gas turbine starts, eight bed preheater starts, and six operating periods on coal. (4) During this quarter, total gross generation was 40,721 MWH, the peak unit output for one hour was 62 MWH, and the coal consumption was 19,370 tons. (5) Three performance tests were conducted during this quarter; and (6) the plant was able to remain in service during the sub-zero weather in January, providing power to the critically short grid.

  1. Basic Chemistry for the Cement Industry.

    ERIC Educational Resources Information Center

    Turner, Mason

    This combined student workbook and instructor's guide contains nine units for inplant classes on basic chemistry for employees in the cement industry. The nine units cover the following topics: chemical basics; measurement; history of cement; atoms; bonding and chemical formulas; solids, liquids, and gases; chemistry of Portland cement…

  2. The Chemistry of Fitness. Active Activities.

    ERIC Educational Resources Information Center

    Bergandine, David R.; And Others

    1991-01-01

    The outline for a unit on the chemistry of fitness and nutrition is presented. Topics discussed include the organic basis of life, functional groups, kitchen experiments, micronutrients, energetics, fitness vs. fatness, current topics, and evaluation. This unit reviews the basic concepts of chemical bonding, acid-base chemistry, stoichiometry, and…

  3. Energy programs. Quarterly report, January-March 1980

    SciTech Connect

    Not Available

    1980-01-01

    The Johns Hopkins University Applied Physics Laboratory, is engaged in developing energy resource, utilization concepts, and monitoring and storage methods. This Quarterly Report summarizes the work on the various tasks as of 31 March 1980. The Energy Quarterly Report is divided into four sections. The first, Geothermal Energy Development Planning and Technical Assistance, contains reports on the progress of geothermal-related tasks on which effort was concentrated during the quarter. The second section, Operational Research, Hydroelectric Power Development, contains reports on small-scale hydroelectric investigations in the southeastern states. The third section, Seismotectonic Investigation, reports on a neotectonic investigation in Connecticut. The fourth section, Energy Conversion and Storage Techniques, contains two articles, the first on OTEC core unit testing supported by the Department of Energy/Division of Central Solar Technology (DOE/CST), and the second on an analysis of the Community Annual Storage Energy System at the US Naval Air Station, Norfolk, Va.

  4. 77 FR 3035 - Pricing for 2012 Annual Sets and America the Beautiful Quarters® Bags & Rolls

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-20

    ... United States Mint Pricing for 2012 Annual Sets and America the Beautiful Quarters Bags & Rolls AGENCY: United States Mint, Department of the Treasury. ACTION: Notice. SUMMARY: The United States Mint is... table below. Retail Product Price 2012 United States Mint Proof Set $31.95 2012 United States...

  5. Chemistry Notes

    ERIC Educational Resources Information Center

    School Science Review, 1973

    1973-01-01

    Several ideas are proposed for chemistry teachers to try in their classrooms. Subjects included are polymerization of acrylate, polymerization of styrene, conductivity, pollution, preparation of chlorine, redox equations, chemiluminescence, and molecular sieves. (PS)

  6. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1981

    1981-01-01

    Describes 13 activities, experiments and demonstrations, including the preparation of iron (III) chloride, simple alpha-helix model, investigating camping gas, redox reactions of some organic compounds, a liquid crystal thermometer, and the oxidation number concept in organic chemistry. (JN)

  7. Nuclear Chemistry.

    ERIC Educational Resources Information Center

    Chemical and Engineering News, 1979

    1979-01-01

    Provides a brief review of the latest developments in nuclear chemistry. Nuclear research today is directed toward increased activity in radiopharmaceuticals and formation of new isotopes by high-energy, heavy-ion collisions. (Author/BB)

  8. Precolumbian Chemistry.

    ERIC Educational Resources Information Center

    Robinson, Janet Bond

    1995-01-01

    Describes the content and development of a curriculum that provides an approach to descriptive chemistry and the history of technology through consideration of the pottery, metallurgy, pigments, dyes, agriculture, and medicine of pre-Columbian people. (DDR)

  9. Catalytic Chemistry.

    ERIC Educational Resources Information Center

    Borer, Londa; And Others

    1996-01-01

    Describes an approach for making chemistry relevant to everyday life. Involves the study of kinetics using the decomposition of hydrogen peroxide by vegetable juices. Allows students to design and carry out experiments and then draw conclusions from their results. (JRH)

  10. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1980

    1980-01-01

    Describes equipment, activities, and experiments useful in chemistry instruction, including among others, a rapid method to determine available chlorine in bleach, simple flame testing apparatus, and a simple apparatus demonstrating the technique of flash photolysis. (SK)

  11. Natural gas imports and exports. First quarter report 1994

    SciTech Connect

    Not Available

    1994-08-01

    The Office of Fuels Programs Prepares quarterly reports Summarizing the data provided by companies authorized to import or export natural gas. Companies are required, as a condition of their authorizations, to file quarterly reports with the OFP. This report is for the first quarter of 1994 (January--March). Attachment A shows the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the five most recent reporting quarters. Attachment B shows volumes and prices of gas purchased by long-term importers and exporters during the past twelve months. Attachment C shows volume and price information for gas imported on a short-term basis. Attachment D shows the gas exported on a short-term basis to Canada and Mexico. During the first three months of 1994, data indicates that gas imports grew by about 14 percent over the level of the first quarter of 1993 (668 vs. 586 Bcf), with Canadian and Algerian imports increasing by 12 and 53 percent, respectively. During the same time period, exports declined by 15 percent (41 vs. 48 Bcf). Exports to Canada increased by 10 percent from the 1993 level (22 vs. 20 Bcf) and exports to Mexico decreased by 64 percent (5 vs. 14 Bcf).

  12. General Chemistry Division. Quarterly report, October-December 1979

    SciTech Connect

    Not Available

    1980-02-15

    Progress is reported on analytical R and D for the nuclear explosives programs (coupling of gas chromatograph, mass spectrometer, and infrared spectrometer; analysis of fluorocarbon FC-86; far-infrared laser development; transient behavior of n-type TiO/sub 2/ semiconductor photoelectrodes; and impurities on Kevlar 49 fibers) and for the energy programs (on-line mass spectroscopy of oil shale and testing of additives for controlling the scaling of hypersaline geothermal brine). (DLC)

  13. Coal-transformation chemistry. Fourth quarterly progress report

    SciTech Connect

    Stock, Leon M.; Blain, D. A.; Handy, C. I.; Heimann, P.; Huang, C. B.; King, H. -H.; Landschulz, W.; Willis, R. S.

    1980-01-01

    Pyrene, perylene, anthracene, 9,10-diphenylanthracene, naphthalene and biphenyl have been employed as electron transfer agents in the reduction of Illinois No. 6 coal with potassium in tetrahydrofuran. These electron transfer agents are about equally effective for the reduction of this coal at short reaction times (3 hours). We conclude that the anions of biphenyl and naphthalene achieve a greater degree of electron transfer to the coal molecules and that the use of these anions enhances the fragmentation reactions of the coal. Illinois No. 6 bituminous coal and Colorado subbituminous coal were reacted with potassium dissolved in a mixture of monoglyme and triglyme at -50/sup 0/C. The reduction reaction proceeded via solvated electrons rather than by an electron transfer reaction. The coals were then alkylated with methyl iodide and their solubilities in tetrahydrofuran were determined. The Illinois coal reductively alkylated via solvated electrons was considerably less soluble in tetrahydrofuran than the same coal reductively alkylated with potassium and naphthalene in tetrahydrofuran. A sample of Illinois No. 6 coal which had been reductively butylated with n-butyl-1-/sup 13/C iodide was hydrolyzed. Carbon nmr spectroscopy of the hydrolyzed coal revealed that the resonances previously assigned either to the presence of n-butyl carboxylates or to n-butyl tertiary ethers were removed. This observation provides definite evidence that only carboxylates were present in the original alkylated product. Selective alkylation of the acidic hydroxyl groups in Illinois No. 6 coal was carried out using tetrabutylammonium hydroxide as a phase transfer catalyst and iodomethane or 1-iodobutane as alkylating agent as described by Liotta. The tetrahydrofuran solubility of the product was significantly improved in a reaction where reductively butylated coal was subsequently coal was subsequently methylated using Liotta's procedure.

  14. Developing and Evaluating an Eighth Grade Curriculum Unit That Links Foundational Chemistry to Biological Growth: Designing Professional Development to Support Teaching

    ERIC Educational Resources Information Center

    Kruse, Rebecca; Howes, Elaine V.; Carlson, Janet; Roth, Kathleen; Bourdelat-Parks, Brooke

    2013-01-01

    AAAS and BSCS are collaborating to develop and study a curriculum unit that supports students' ability to explain a variety of biological processes such as growth in chemical terms. The unit provides conceptual coherence between chemical processes in nonliving and living systems through the core idea of atom rearrangement and conservation during…

  15. Quarterly environmental data summary for first quarter 1998

    SciTech Connect

    1998-05-01

    In support of the Weldon Spring Site Remedial Action Project Federal Facilities Agreement, a copy of the Quarterly Environmental Data Summary (QEDS) for the first quarter of 1998 is enclosed. The data presented in this letter and attachment constitute the QEDS. The data were received from the contract laboratories, verified by the Weldon Spring Site verification group and, except for air monitoring data and site KPA generated data (uranium analyses), merged into the data base during the first quarter of 1998. Air monitoring data presented are the most recent complete sets of quarterly data. Air data are not stored in the data base, and KPA data are not merged into the regular data base. Significant data, defined as data values that have exceeded defined {open_quotes}above normal{close_quotes} Level 2 values, are discussed in this letter for Environmental Monitoring Plan (EMP) generated data only. Above normal Level 2 values are based, in ES&H procedures, on historical high values, DOE Derived Concentration Guides (DCGs), NPDES limits and other guidelines. The procedures also establish actions to be taken in the event that {open_quotes}above normal{close_quotes} data occur. All data received and verified during the first quarter were within a permissible range of variability except for those detailed below. Above normal occurrences are cited for groundwater, air, and NPDES data. There were none for springs or surface water. The following discussion offers a brief summary of the data merged during the first quarter that exceeded the above normal criteria and updates on past reported above normal data. The attached tables present the most recent data for air and the data merged into the data base during the first quarter 1998 for groundwater, NPDES, surface water, and springs. Graphs showing concentrations of selected contaminants of concern at some of the critical locations have also been included in this QEDS. The graphs are discussed in the separate sections.

  16. Land surface phenology in eastern United States watersheds: relationship between remote sensing metrics, stream chemistry, snow cover, and leaf and bird phenology

    NASA Astrophysics Data System (ADS)

    White, M. A.; Baker, M.; Weller, D.; Jordan, T.

    2006-12-01

    Remote sensing of terrestrial land surfaces has long promised an unprecedented ability to regularly and consistently monitor patterns of vegetation phenology, which in turn implied an ability to develop prognostic phenology models and/or directly to force seasonality within climate models. Within the last five years, though, research has shown that land surface phenology, which is the integral signal of atmospheric, snow, soil, cloud, and vegetation, can be dramatically different than vegetation phenology alone. Consequently, there is a strong need to understand the usually unique relationship between remotely sensed land surface phenology and a continuum of ground-based processes. Here, using a network of watersheds in the Coastal Plain and Piedmont regions of the Chesapeake Bay, we conducted a four-part analysis for the 1997 to 1999 period. First, using a recently developed land surface phenology technique designed to represent a continuum, rather than a specific event (i.e. the start of the growing season), we calculated the daily percent above threshold (PAT), a metric of the percent of the watershed above a locally assigned greenness threshold. Second, we assembled a collection of measured leaf and hummingbird phenology and snow cover data. Third, we obtained weekly measurements of stream flow, total nitrogen (N), organic N, Kjeldahl N, ammonium, nitrate, total phosphorous, organic phosphorous, and phosphate. Fourth, as the stream chemistry data was collected irregularly across watersheds, we then calculated weekly average PAT and stream chemistry values. We found that for these watersheds, observed patterns of PAT increase were unrelated to snow cover and coincident with a continuum of ground-measured leaf phenology and hummingbird appearance. The spring increase in PAT also was consistently related to reductions in nitrate load, but not to other water chemistry measurement, suggesting an interaction between vegetative N demand and stream nitrate.

  17. Metallurgical Laboratory Hazardous Waste Management Facility groundwater monitoring report. First quarter 1993

    SciTech Connect

    Not Available

    1993-06-01

    During first quarter 1993, samples from 18 groundwater monitoring wells of the AMB series at the Metallurgical Laboratory Hazardous Waste Management Facility were analyzed for certain heavy metals, indicator parameters, radionuclides, volatile organic compounds, and other constituents. Nine parameters exceeded standards during the quarter. As in fourth quarter 1992, tetrachloroethylene and trichloroethylene exceeded the final Primary Drinking Water Standards in 4 and 7 wells, respectively. Dichloromethane (methylene chloride), not previously compared to a standard in the Savannah River Site Groundwater Monitoring Program, was elevated in one well. Aluminum, iron, manganese, pH, specific conductance, and total organic halogens exceeded the Savannah River Site Flag 2 criteria; all of these parameters, with the exception of aluminum, were reported as elevated in AMB wells during previous quarters. Groundwater flow directions and rates in the water-table unit and the upper section of the Congaree were similar to previous quarters.

  18. His majesty's subjects: from laboratory to human experiment in pneumatic chemistry.

    PubMed

    Stewart, Larry

    2009-09-20

    Experiments in pneumatic chemistry paved the way for medical innovation in the last quarter of the eighteenth century. Thomas Beddoes and James Watt were instrumental in the spread of the use of new gas chemistry in pneumatic therapy, but they were far from alone. There was no shortage of experimental subjects, as the practice was quickly taken up by medics throughout Britain.

  19. 77 FR 31069 - Pricing for the 2012 America the Beautiful Quarters Five Ounce Silver Uncirculated CoinsTM

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-24

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY United States Mint Pricing for the 2012 America the Beautiful Quarters Five Ounce Silver Uncirculated... States Mint is announcing the price of the 2012 America the Beautiful Quarters Five Ounce...

  20. 78 FR 26116 - Pricing for the 2013 America the Beautiful Quarter Five Ounce Silver Uncirculated CoinsTM

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-03

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY United States Mint Pricing for the 2013 America the Beautiful Quarter Five Ounce Silver Uncirculated... States Mint is announcing the price of the 2013 America the Beautiful Quarter Five Ounce...

  1. Short-term energy outlook: Quarterly projections, fourth quarter 1997

    SciTech Connect

    1997-10-14

    The Energy Information Administration (EIA) prepares quarterly short-term energy supply, demand, and price projections for printed publication in January, April, July, and October in the Short-Term Energy Outlook. The details of these projections, as well as monthly updates on or about the 6th of each interim month, are available on the internet at: www.eia.doe.gov/emeu/steo/pub/contents.html. The forecast period for this issue of the Outlook extends from the fourth quarter of 1997 through the fourth quarter of 1998. Values for the fourth quarter of 1997, however, are preliminary EIA estimates (for example, some monthly values for petroleum supply and disposition are derived in part from weekly data reported in EIA`s Weekly Petroleum Status Report) or are calculated from model simulations that use the latest exogenous information available (for example, electricity sales and generation are simulated by using actual weather data). The historical energy data, compiled in the fourth quarter 1997 version of the Short-Term Integrated Forecasting System (STIFS) database, are mostly EIA data regularly published in the Monthly Energy Review, Petroleum Supply Monthly, and other EIA publications. Minor discrepancies between the data in these publications and the historical data in this Outlook are due to independent rounding. The STIFS model is driven principally by three sets of assumptions or inputs: estimates of key macroeconomic variables, world oil price assumptions, and assumptions about the severity of weather. 19 tabs.

  2. Quarterly environmental data summary for fourth quarter 1997

    SciTech Connect

    1997-12-31

    The Quarterly Environmental Data Summary (QEDS) for the fourth quarter of 1997 is prepared in support of the Weldon Spring Site Remedial Action Project Federal Facilities Agreement. The data presented constitute the QEDS. The data were received from the contract laboratories, verified by the Weldon Spring Site verification group and, except for air monitoring data and site KPA generated data (uranium analyses), merged into the data base during the fourth quarter of 1997. Air monitoring data presented are the most recent complete sets of quarterly data. Air data are not stored in the data base and KPA data are not merged into the regular data base. Significant data, defined as data values that have exceeded defined ``above normal`` level 2 values, are discussed in this letter for Environmental Monitoring Plan (EMP) generated data only. Above normal level 2 values are based, in ES and H procedures, on historical high values, DOE Derived Concentration Guides (DCGs), NPDES limits and other guidelines. The procedures also establish actions to be taken in response to such data. Data received and verified during the fourth quarter were within a permissible range of variability except for those which are detailed.

  3. Development of analytical procedures for coprocessing. Quarterly technical progress report, April 1, 1991--June 30, 1991

    SciTech Connect

    Green, J.B.; Anderson, R.P.

    1991-07-01

    The overall objective of the contract is to improve understanding of the fundamental chemistry of coprocessing. A primary objective is to evaluate methods to distinguish between compound classes originating from coal versus those originating from petroleum resid while a corollary objective is to provide detailed knowledge on the composition of coprocessing products. This and the prior quarterly report summarize work conducted in support of the latter objective in which process development unit samples produced by HRI, Inc. were subjected to detailed analysis. Coprocessing resid samples selected for detailed analysis were made under constant conditions except for variations in coal concentration or in the coal (New Mexico subbituminous or Texas lignite). Separation of the resids into acid, base, saturate, and neutral-aromatic subtractions, separation of the neutral-aromatics by ring number and high temperature gas chromatography were discussed in the previous quarterly. This report includes results of nonaqueous titrations, elemental analyses and infrared spectroscopy. The hydrocarbon skeletons of saturated hydrocarbons in the coprocessing resids appear to be fundamentally different than those of aromatic species. Neutral-aromatic fractions contain minor levels of sulfur compounds, an unknown proportion of ether or other oxygen-containing species, and major concentrations of aromatic hydrocarbons containing from 3 to 7 aromatic rings. Base fractions contain predominantly single nitrogen compounds of azaarene or aminoaromatic type. Aminoaromatics (compounds analogous to aniline) are present in significant amounts in products made from New Mexico subbituminous coal but are nearly absent in the Texas lignite product. Acid fractions contain appreciable quantities of pyrrolic benzologs, but surprisingly low concentrations of compounds with a free OH group.

  4. Radiation Chemistry

    NASA Astrophysics Data System (ADS)

    Wojnárovits, L.

    Ionizing radiation causes chemical changes in the molecules of the interacting medium. The initial molecules change to new molecules, resulting in changes of the physical, chemical, and eventually biological properties of the material. For instance, water decomposes to its elements H2 and O2. In polymers, degradation and crosslinking take place. In biopolymers, e.g., DNS strand breaks and other alterations occur. Such changes are to be avoided in some cases (radiation protection), however, in other cases they are used for technological purposes (radiation processing). This chapter introduces radiation chemistry by discussing the sources of ionizing radiation (radionuclide sources, machine sources), absorption of radiation energy, techniques used in radiation chemistry research, and methods of absorbed energy (absorbed dose) measurements. Radiation chemistry of different classes of inorganic (water and aqueous solutions, inorganic solids, ionic liquids (ILs)) and organic substances (hydrocarbons, halogenated compounds, polymers, and biomolecules) is discussed in concise form together with theoretical and experimental backgrounds. An essential part of the chapter is the introduction of radiation processing technologies in the fields of polymer chemistry, food processing, and sterilization. The application of radiation chemistry to nuclear technology and to protection of environment (flue gas treatment, wastewater treatment) is also discussed.

  5. Strategic Petroleum Reserve. Quarterly report

    SciTech Connect

    Not Available

    1993-11-15

    The Strategic Petroleum Reserve serves as one of the most important investments in reducing the Nation`s vulnerability to oil supply disruptions. This Quarterly Report highlights activities undertaken during the third quarter of calendar year 1993, including: inventory of petroleum products stored in the Reserve, under contract and in transit at the end of the calendar quarter; fill rate for the quarter and projected fill rate for the next calendar quarter; average price of the petroleum products acquired during the calendar quarter; current and projected storage capacity and plans to accelerate the acquisition or construction of such capacity; analysis of existing or anticipated problems with the acquisition and storage of petroleum products and future expansion of storage capacity; funds obligated by the Secretary from the SPR Petroleum Account and the Strategic Petroleum Reserve Account during the prior calendar quarter and in total; and major environmental actions completed, in progress, or anticipated. Samples of the oil revealed two problems that, although readily correctable, have reduced the availability of some of the oil inventory for drawdown in the near-term. These problems are: (1) a higher-than-normal gas content in some of the crude oil, apparently from years of intrusion of methane form the surrounding salt formation; and (2) elevated temperatures of some of the crude oil, due to geothermal heating, that has increased the vapor pressure of the oil. Investigations are proceeding to determine the extent to which gas intrusion and geothermal heating are impacting the availability of oil for drawdown. Preliminary designs have been developed for systems to mitigate both problems.

  6. Quarterly coal report, April--June 1997

    SciTech Connect

    1997-11-01

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience. Coke production, consumption, distribution, imports, and exports data are also provided. This report presents detailed quarterly data for April through June 1997 and aggregated quarterly historical data for 1991 through the first quarter of 1997. Appendix A displays, from 1991 on, detailed quarterly historical coal imports data. Appendix B gives selected quarterly tables converted to metric tons. To provide a complete picture of coal supply and demand in the US, historical information has been integrated in this report. 8 figs., 73 tabs.

  7. Resident training in clinical chemistry.

    PubMed

    Genzen, Jonathan R; Krasowski, Matthew D

    2007-06-01

    Practicing clinical chemists responded to an anonymous, open-ended questionnaire designed to define the state of clinical chemistry education in pathology training programs in the United States. Survey respondents identified many ideas for educational improvements and offered criticism regarding aspects of clinical chemistry education that are not working particularly well. Many of these findings are generalizable to other subspecialties of clinical pathology. It is hoped that this analysis will allow readers to compare their programs with national trends and identify new ways of improving clinical chemistry training at their institutions. PMID:17556088

  8. Resident training in clinical chemistry.

    PubMed

    Genzen, Jonathan R; Krasowski, Matthew D

    2007-06-01

    Practicing clinical chemists responded to an anonymous, open-ended questionnaire designed to define the state of clinical chemistry education in pathology training programs in the United States. Survey respondents identified many ideas for educational improvements and offered criticism regarding aspects of clinical chemistry education that are not working particularly well. Many of these findings are generalizable to other subspecialties of clinical pathology. It is hoped that this analysis will allow readers to compare their programs with national trends and identify new ways of improving clinical chemistry training at their institutions.

  9. Parallel chemistry in the 21st century.

    PubMed

    Long, Alan

    2012-09-01

    The tool chest of techniques, methodologies, and equipment for conducting parallel chemistry is larger than ever before. Improvements in the laboratory and developments in computational chemistry have enabled compound library design at the desks of medicinal chemists. This unit includes a brief background in combinatorial/parallel synthesis chemistry, along with a discussion of evolving technologies for both solid- and solution-phase chemistry. In addition, there are discussions on designing compound libraries, acquisition/procurement of compounds and/or reagents, the chemistry and equipment used for chemical production, purification, sample handling, and data analysis.

  10. Comprehensive evaluation of multi-year real-time air quality forecasting using an online-coupled meteorology-chemistry model over southeastern United States

    NASA Astrophysics Data System (ADS)

    Zhang, Yang; Hong, Chaopeng; Yahya, Khairunnisa; Li, Qi; Zhang, Qiang; He, Kebin

    2016-08-01

    An online-coupled meteorology-chemistry model, WRF/Chem-MADRID, has been deployed for real time air quality forecast (RT-AQF) in southeastern U.S. since 2009. A comprehensive evaluation of multi-year RT-AQF shows overall good performance for temperature and relative humidity at 2-m (T2, RH2), downward surface shortwave radiation (SWDOWN) and longwave radiation (LWDOWN), and cloud fraction (CF), ozone (O3) and fine particles (PM2.5) at surface, tropospheric ozone residuals (TOR) in O3 seasons (May-September), and column NO2 in winters (December-February). Moderate-to-large biases exist in wind speed at 10-m (WS10), precipitation (Precip), cloud optical depth (COT), ammonium (NH4+), sulfate (SO42-), and nitrate (NO3-) from the IMPROVE and SEARCH networks, organic carbon (OC) at IMPROVE, and elemental carbon (EC) and OC at SEARCH, aerosol optical depth (AOD) and column carbon monoxide (CO), sulfur dioxide (SO2), and formaldehyde (HCHO) in both O3 and winter seasons, column nitrogen dioxide (NO2) in O3 seasons, and TOR in winters. These biases indicate uncertainties in the boundary layer and cloud process treatments (e.g., surface roughness, microphysics cumulus parameterization), emissions (e.g., O3 and PM precursors, biogenic, mobile, and wildfire emissions), upper boundary conditions for all major gases and PM2.5 species, and chemistry and aerosol treatments (e.g., winter photochemistry, aerosol thermodynamics). The model shows overall good skills in reproducing the observed multi-year trends and inter-seasonal variability in meteorological and radiative variables such as T2, WS10, Precip, SWDOWN, and LWDOWN, and relatively well in reproducing the observed trends in surface O3 and PM2.5, but relatively poor in reproducing the observed column abundances of CO, NO2, SO2, HCHO, TOR, and AOD. The sensitivity simulations using satellite-constrained boundary conditions for O3 and CO show substantial improvement for both spatial distribution and domain-mean performance

  11. Polymer Chemistry

    NASA Technical Reports Server (NTRS)

    Williams, Martha; Roberson, Luke; Caraccio, Anne

    2010-01-01

    This viewgraph presentation describes new technologies in polymer and material chemistry that benefits NASA programs and missions. The topics include: 1) What are Polymers?; 2) History of Polymer Chemistry; 3) Composites/Materials Development at KSC; 4) Why Wiring; 5) Next Generation Wiring Materials; 6) Wire System Materials and Integration; 7) Self-Healing Wire Repair; 8) Smart Wiring Summary; 9) Fire and Polymers; 10) Aerogel Technology; 11) Aerogel Composites; 12) Aerogels for Oil Remediation; 13) KSC's Solution; 14) Chemochromic Hydrogen Sensors; 15) STS-130 and 131 Operations; 16) HyperPigment; 17) Antimicrobial Materials; 18) Conductive Inks Formulations for Multiple Applications; and 19) Testing and Processing Equipment.

  12. Chemistry Experiments

    NASA Technical Reports Server (NTRS)

    Brasseur, Guy; Remsberg, Ellis; Purcell, Patrick; Bhatt, Praful; Sage, Karen H.; Brown, Donald E.; Scott, Courtney J.; Ko, Malcolm K. W.; Tie, Xue-Xi; Huang, Theresa

    1999-01-01

    The purpose of the chemistry component of the model comparison is to assess to what extent differences in the formulation of chemical processes explain the variance between model results. Observed concentrations of chemical compounds are used to estimate to what degree the various models represent realistic situations. For readability, the materials for the chemistry experiment are reported in three separate sections. This section discussed the data used to evaluate the models in their simulation of the source gases and the Nitrogen compounds (NO(y)) and Chlorine compounds (Cl(y)) species.

  13. Short-term energy outlook. Quarterly projections, first quarter 1996

    SciTech Connect

    1996-02-01

    The Energy Information Administration (EIA) prepares quarterly, short-term energy supply, demand, and price projections for publication in February, May, August, and November in the Outlook. The forecast period for this issue of the Outlook extends from the first quarter of 1996 through the fourth quarter of 1997. Values for the fourth quarter of 1995, however, are preliminary EIA estimates (for example, some monthly values for petroleum supply and disposition are derived in part from weekly data reported in the Weekly Petroleum Status Report) or are calculated from model simulations using the latest exogenous information available (for example, electricity sales and generation are simulated using actual weather data). The historical energy data, compiled into the first quarter 1996 version of the Short-Term Integrated Forecasting System (STIFS) database, are mostly EIA data regularly published in the Monthly Energy Review, Petroleum Supply Monthly, and other EIA publications. Minor discrepancies between the data in these publications and the historical data in this Outlook are due to independent rounding. The STIFS database is archived quarterly and is available from the National Technical Information Service. The cases are produced using the Short-Term Integrated Forecasting System (STIFS). The STIFS model is driven principally by three sets of assumptions or inputs: estimates of key macroeconomic variables, world oil price assumptions, and assumptions about the severity of weather. Macroeconomic estimates are produced by DRI/McGraw-Hill but are adjusted by EIA to reflect EIA assumptions about the world price of crude oil, energy product prices, and other assumptions which may affect the macroeconomic outlook.

  14. Short-term energy outlook: Quarterly projections, second quarter 1997

    SciTech Connect

    1997-04-01

    The Energy Information Administration (EIA) prepares quarterly short-term energy supply, demand, and price projections for publication in January, April, July, and October in the Outlook. The forecast period for this issue of the Outlook extends from the second quarter of 1997 through the fourth quarter of 1998. Values for the first quarter of 1997, however, are preliminary EIA estimates (for example, some monthly values for petroleum supply and disposition are derived in part from weekly data reported in EIA`s Weekly Petroleum Status Report) or are calculated from model simulations that use the latest exogenous information available (for example, electricity sales and generation are simulated by using actual weather data). The historical energy data, compiled in the second quarter 1997 version of the Short-Term Integrated Forecasting System (STIFS) database, are mostly EIA data regularly published in the Monthly Energy Review, Petroleum Supply Monthly, and other EIA publications. Minor discrepancies between the data in these publications and the historical data in this Outlook are due to independent rounding. The STIFS database is archived quarterly and is available from the National Technical Information Service. The STIFS model is driven principally by three sets of assumptions or inputs: estimates of key macroeconomic variables, world oil price assumptions, and assumptions about the severity of weather. Macroeconomic estimates are produced by DRI/McGraw-Hill but are adjusted by EIA to reflect EIA assumptions about the world price of crude oil, energy product prices, and other assumptions which may affect the macroeconomic outlook. By varying the assumptions, alternative cases are produced by using the Short-Term Integrated Forecasting System (STIFS). 34 figs., 19 tabs.

  15. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1982

    1982-01-01

    Presents procedures, experiments, demonstrations, teaching suggestions, and information on a variety of chemistry topics including, for example, inert gases, light-induced reactions, calculators, identification of substituted acetophenones, the elements, analysis of copper minerals, extraction of metallic strontium, equilibrium, halogens, and…

  16. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1983

    1983-01-01

    Presents chemistry experiments, laboratory procedures, demonstrations, teaching suggestions, and classroom materials/activities. These include: game for teaching ionic formulas; method for balancing equations; description of useful redox series; computer programs (with listings) for water electrolysis simulation and for determining chemical…

  17. Chemistry Notes

    ERIC Educational Resources Information Center

    School Science Review, 1972

    1972-01-01

    Short articles on the kinetics of the hydrogen peroxide-iodide ion reaction, simulation of fluidization catalysis, the use of Newman projection diagrams to represent steric relationships in organic chemistry, the use of synthetic substrates for proteolytic enzyme reactions, and two simple clock reactions"--hydrolysis of halogenoalkanes and…

  18. Chemistry Notes

    ERIC Educational Resources Information Center

    School Science Review, 1972

    1972-01-01

    Short articles on the alkylation of aniline, the preparation and properties of perbromate, using scrap copper in chemistry instruction, a safe method of burning hydrogen, and the use of an ion-charge model as an alternative to the mole concept in secondary school instruction. (AL)

  19. Confectionary Chemistry.

    ERIC Educational Resources Information Center

    Levine, Elise Hilf

    1996-01-01

    Presents activities and demonstrations that enable teachers to use various types of confections as tactile experiences to spark chemistry students' interest and generate enthusiasm for learning. Presents uses of candy in teaching about atomic structure, spontaneous nuclear decay, chemical formulas, fractoluminescence, the effect of a molecular…

  20. Chemistry Notes

    ERIC Educational Resources Information Center

    School Science Review, 1976

    1976-01-01

    Describes several chemistry projects, including solubility, formula for magnesium oxide, dissociation of dinitrogen tetroxide, use of 1-chloro-2, 4-dinitrobenzene, migration of ions, heats of neutralizations, use of pocket calculators, sonic cleaning, oxidation states of manganese, and cell potentials. Includes an extract from Chemical Age on…

  1. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1983

    1983-01-01

    Presents chemistry experiments, laboratory procedures, demonstrations, and classroom materials/activities. These include: experiments on colloids, processing of uranium ore, action of heat on carbonates; color test for phenols and aromatic amines; solvent properties of non-electrolytes; stereoscopic applications/methods; a valency balance;…

  2. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1978

    1978-01-01

    Describes some laboratory apparatus, chemistry experiments and demonstrations, such as a Kofler block melting point apparatus, chromatographic investigation of the phosphoric acid, x-ray diffraction, the fountain experiment, endothermic sherbet, the measurement of viscosity, ionization energies and electronic configurations. (GA)

  3. Chemistry Notes.

    ERIC Educational Resources Information Center

    School Science Review, 1980

    1980-01-01

    Presents 12 chemistry notes for British secondary school teachers. Some of these notes are: (1) a simple device for testing pH-meters; (2) portable fume cupboard safety screen; and (3) Mass spectroscopy-analysis of a mass peak. (HM)

  4. The problem of optimizing the water chemistry used in the primary coolant circuit of a nuclear power station equipped with VVER reactors under the conditions of longer fuel cycle campaigns and increased capacity of power units

    NASA Astrophysics Data System (ADS)

    Sharafutdinov, R. B.; Kharitonova, N. L.

    2011-05-01

    It is shown that the optimal water chemistry of the primary coolant circuit must be substantiated while introducing measures aimed at increasing the power output in operating power units and for the project called AES-2006/AES TOI (a typical optimized project of a nuclear power station with enhanced information support). The experience gained from operation of PWR reactors with an elongated fuel cycle at an increased level of power is analyzed. Conditions under which boron compounds are locally concentrated on the fuel rod surfaces (the hideout phenomenon) and axial offset anomaly occurs are enlisted, and the influence of lithium on the hideout in the pores of deposits on the surfaces of fuel assemblies is shown.

  5. 78 FR 5245 - Pricing for New Product-America the Beautiful Quarters® Three-Roll Set

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-24

    ... United States Mint Pricing for New Product--America the Beautiful Quarters Three-Roll Set AGENCY: United States Mint, Department of the Treasury. ACTION: Notice. SUMMARY: The United States Mint is announcing... Marketing; United States Mint; 801 9th Street NW., Washington, DC 20220; or call 202-354-7500. Authority:...

  6. Commercial LFCM vitrification technology. Quarterly progress report, October-December 1984

    SciTech Connect

    Burkholder, H.C.; Jarrett, J.H.

    1985-07-01

    This report is the first in a series of quarterly reports compiled by the Nuclear Waste Treatment Program Office at Pacific Northwest Laboratory to document progress on commercial liquid-fed ceramic melter (LFCM) vitrification technology. Progress in the following technical subject areas during the first quarter of FY 1985 is discussed: pretreatment systems, melting process chemistry, glass development and characterization, feed preparation and transfer systems, melter systems, canister filling and handling systems, off-gas systems, process/product modeling and control, and supporting studies. 33 figs., 12 tabs.

  7. Influence of Dynamics and Chemistry on the Diurnal Variation of VOCs in the Planetary Boundary Layer above a Mixed Forest Canopy in the Southeastern United States

    NASA Astrophysics Data System (ADS)

    Guenther, A. B.; Su, L.; Patton, E. G.; Vila-Guerau Arellano, J.; Mak, J. E.

    2014-12-01

    The planetary boundary layer (PBL) is a region of inherent interest because reactive VOCs emitted from the forest canopy are mixed with the residual and free tropospheric air masses, oxidized, and/or otherwise removed in this region. The characterization of diurnal variation of VOCs in the PBL is limited due to the lack of appropriate sampling platforms that are able to probe all the regions of interest: from the surface to the entrainment zone. Here we present the application of the Whole Air Sample Profiler (WASP) system during the 2013 Southeast Atmosphere Study (SAS) campaign. A total of 41 research flights (RFs) were carried out during the 2013 SAS campaign between June 1 and June 14 over the Alabama Aquatic Biodiversity Center (AABC) site and the SEARCH site. During each RF, ambient air sampling started from 50-100 m above the canopy top and stopped at ~1200 m above the mean sea level (a.m.s.l). The air samples were subsequently analyzed by using a proton-transfer-reaction time-of-flight mass spectrometry (PTR-TOF-MS). Here we analyze the vertical profiles and averaged diurnal variation of the mixing ratios of several reactive VOC species, including isoprene, the sum of monoterpenes, and first generation oxidation products of isoprene: methyl vinyl ketone and methacrolein (MVK+MACR). A MiXed Layer Chemistry (MXLCH) model, guided by the meteorological and chemical observations during the SAS campaign, is used to study the influence of boundary layer dynamics and new isoprene oxidation mechanism on the diurnal variation of major biogenic VOCs emitted from the forest canopy. The new scheme includes OH recycling through two pathways under low-NOx regime: (1) hydroxyl peroxy radicals (HOC5H8OO•; ISOPO2) unimolecular isomerization, and (2) ISOPO2+HO2. The model is able to reproduce the evolution of the boundary layer dynamics (including potential temperature, and boundary layer height) during the selected simulation dates. Based on the model results, budget

  8. Short-term energy outlook, quarterly projections, first quarter 1998

    SciTech Connect

    1998-01-01

    The forecast period for this issue of the Outlook extends from the first quarter of 1998 through the fourth quarter of 1999. Values for the fourth quarter of 1997, however, are preliminary EIA estimates (for example, some monthly values for petroleum supply and disposition are derived in part from weekly data reported in EIA`s Weekly Petroleum Status Report) or are calculated from model simulations that use the latest exogenous information available (for example, electricity sales and generation are simulated by using actual weather data). The historical energy data, compiled in the first quarter 1998 version of the Short-Term Integrated Forecasting System (STIFS) database, are mostly EIA data regularly published in the Monthly Energy Review, Petroleum Supply Monthly, and other EIA publications. Minor discrepancies between the data in these publications and the historical data in this Outlook are due to independent rounding. The STIFS model is driven principally by three sets of assumptions or inputs: estimates of key macroeconomic variables, world oil price assumptions, and assumptions about the severity of weather. Macroeconomic estimates are adjusted by EIA to reflect EIA assumptions which may affect the macroeconomic outlook. By varying the assumptions, alternative cases are produced by using the STIFS model. 24 figs., 19 tabs.

  9. Short-term energy outlook quarterly projections. First quarter 1994

    SciTech Connect

    Not Available

    1994-02-07

    The Energy Information Administration (EIA) prepares quarterly, short- term energy supply, demand, and price projections for publication in February, May, August, and November in the Short-Term Energy Outlook (Outlook). An annual supplement analyzes the performance of previous forecasts, compares recent cases with those of other forecasting services, and discusses current topics related to the short-term energy markets.

  10. Short-term energy outlook, Quarterly projections. Third quarter 1993

    SciTech Connect

    1993-08-04

    The Energy Information Administration (EIA) prepares quarterly, short-term energy supply, demand, and price projections for publication in February, May, August, and November in the Short-Term Energy Outlook (Outlook). An annual supplement analyzes the performance of previous forecasts, compares recent cases with those of other forecasting services, and discusses current topics related to the short-term energy markets. (See Short-Term Energy Outlook Annual Supplement, DOE/EIA-0202.) The forecast period for this issue of the Outlook extends from the third quarter of 1993 through the fourth quarter of 1994. Values for the second quarter of 1993, however, are preliminary EIA estimates (for example, some monthly values for petroleum supply and disposition are derived in part from weekly data reported in the Weekly Petroleum Status Report) or are calculated from model simulations using the latest exogenous information available (for example, electricity sales and generation are simulated using actual weather data). The historical energy data are EIA data published in the Monthly Energy Review, Petroleum Supply Monthly, and other EIA publications. Minor discrepancies between the data in these publications and the historical data in this Outlook are due to independent rounding.

  11. Short-Term Energy Outlook: Quarterly projections. Fourth quarter 1993

    SciTech Connect

    Not Available

    1993-11-05

    The Energy Information Administration (EIA) prepares quarterly, short-term energy supply, demand, and price projections for publication in February, May, August, and November in the Short-Term Energy Outlook (Outlook). An annual supplement analyzes the performance of previous forecasts, compares recent cases with those of other forecasting services, and discusses current topics related to the short-term energy markets. (See Short-Term Energy Outlook Annual Supplement, DOE/EIA-0202.) The forecast period for this issue of the Outlook extends from the fourth quarter of 1993 through the fourth quarter of 1994. Values for the third quarter of 1993, however, are preliminary EIA estimates (for example, some monthly values for petroleum supply and disposition are derived in part from weekly data reported in the Weekly Petroleum Status Report) or are calculated from model simulations using the latest exogenous information available (for example, electricity sales and generation are simulated using actual weather data). The historical energy data are EIA data published in the Monthly Energy Review, Petroleum Supply Monthly, and other EIA publications.

  12. Lawrence Livermore National Laboratory safeguards and security quarterly progress report to the US Department of Energy, quarter ending March 31, 1993

    SciTech Connect

    Ruhter, W.D.; Strait, R.S.; Mansur, D.L.; Davis, G.

    1993-04-01

    This quarterly report discusses activities in the Safeguards Technology Program (STP) which is a program in LLNL`s Nuclear Chemistry Division that develop advanced, nondestructive-analysis (NDA) technology for measurement of special nuclear materials. The work focuses on R&D relating to x{minus} and gamma-ray spectrometry techniques and to the development of computer codes for interpreting the spectral data obtained by these techniques.

  13. Catalytic biomass liquefaction. Quarterly report, January-March 1980

    SciTech Connect

    Ergun, S.; Djafar, R.; Figueroa, C.; Karatas, C.; Schaleger, L.; Seth, M.; Wrathall, J.; Yaghoubzadeh, N.; Yu, G.

    1980-05-01

    Progress during the quarter in the chemical characterization of the products of wood liquefaction is reported. The liquefaction of hydrolyzed slurries in a tubular reactor bomb system is described. The solvolytic depolymerization of wood is compared to the hydrolysis process. Results of a few illustrative runs are pesented. The characterization and flow properties of concentrated slurries are discussed. Progress on the construction of biomass continuous liquefaction unit is described.

  14. TIDD PFBC Demonstration Project. Second quarterly report, 1994

    SciTech Connect

    1997-07-01

    Major activities during this period include: (1) The unit operated for 1529 hours on coal, bringing the grand total for coal fire through the end of the quarter to 7847 hours. (2) During the quarter, the Tidd Plant set a new record for its longest continuous run on coal; 1079 hours, surpassing its previous record of 740 hours set in June-July of 1992. (3) The unit availability for the first half of 1994 was 54.7%. (4) There were four gas turbine starts, eight bed preheater starts, and six operating periods on coal. (5) During this quarter, total gross generation was 71,115 MWH, the peak unit output for one hour was 59 MWH, and the coal consumption was 35,696 tons. (6) Fifteen performance tests have been conducted since the start of the fourth year of operation. Eleven of the tests were conducted during the record run during May and June. (7) Agreements were finalized with the DOE, Ohio Coal Development Office, and technology vendors for funding of the fourth year of operation of the plant.

  15. Equine Disease Surveillance: Quarterly Summary.

    PubMed

    2016-01-23

    West Nile virus in Europe and the USA. Evidence that the spread of vesicular stomatitis in the USA is beginning to slow. Summary of UK surveillance testing, July to September 2015 These are among matters discussed in the most recent quarterly equine disease surveillance report, prepared by Defra, the Animal Health Trust and the British Equine Veterinary Association. PMID:26795859

  16. Gifted Education Press Quarterly, 2001.

    ERIC Educational Resources Information Center

    Fisher, Maurice D., Ed.

    2001-01-01

    These four issues of this quarterly publication on the education of gifted students contain the following featured articles: (1) "Reflections on China: Implications for Gifted Education" (Andrea I. Prejean and Lynn H. Fox); (2) "Differentiating Instruction for Gifted Middle School Students in Heterogeneous Science Classes" (Brendan D. Miller and…

  17. Apprentices & Trainees: September Quarter, 2012

    ERIC Educational Resources Information Center

    National Centre for Vocational Education Research (NCVER), 2013

    2013-01-01

    This publication presents estimates of apprentice and trainee activity in Australia for the September quarter 2012. The figures in this publication are derived from the National Apprentice and Trainee Collection no.74 (December 2012 estimates). The most recent figures in this publication are estimated (those for training activity from the March…

  18. Gifted Education Press Quarterly, 2000.

    ERIC Educational Resources Information Center

    Fisher, Maurice D., Ed.

    2000-01-01

    Four issues of this quarterly publications on gifted education include the following articles: "Unrecognized Giftedness: The Frustrating Case of the Gifted Adult" (Marylou Kelly Streznewski); "Shakespeare in the Classroom: The Bard is Back!" (Rosanna DiMillo Sandell); "What Teachers, Parents, and Administrators Need To Know about Gifted Students"…

  19. Trustee Quarterly, 2000-2001.

    ERIC Educational Resources Information Center

    Trustee Quarterly, 2001

    2001-01-01

    This document contains 4 issues of the Trustee Quarterly: fall 2000, spring 2001, summer 2001, and fall 2001. The fall 2000 issue contains seven features and six departments. Among the features are: "The New Economy: Who Will Lead the Education Movement," by Rucker; "Community Colleges Tackle IT Staffing Challenges," by Matina; and "Looking at…

  20. Gifted Education Press Quarterly, 1999.

    ERIC Educational Resources Information Center

    Fisher, Maurice D., Ed.

    1999-01-01

    This document consists of the four 1999 issues of a quarterly newsletter publication on gifted education. Issues regularly include major articles, book reviews, announcements, and letters. The major articles in these issues are: "The Mathematically Gifted: Bridging the Gender Gap" (Lynn H. Fox and Janet F. Soller); "Parenting for Education:…

  1. Space Station Quarterly, May 1992

    NASA Technical Reports Server (NTRS)

    1992-01-01

    This quarterly report discusses the First International Microgravity Laboratory, the building of space station truss structures at the Johnson Space Center, the building of the living and laboratory modules at the Marshall Space Flight Center, and the Lewis Research Center's work on power for the space station. The video includes a segment on the Japanese Experiment Module.

  2. Education Statistics Quarterly, Spring 2001.

    ERIC Educational Resources Information Center

    Education Statistics Quarterly, 2001

    2001-01-01

    The "Education Statistics Quarterly" gives a comprehensive overview of work done across all parts of the National Center for Education Statistics (NCES). Each issue contains short publications, summaries, and descriptions that cover all NCES publications, data products and funding opportunities developed over a 3-month period. Each issue also…

  3. Gifted Education Press Quarterly, 1995.

    ERIC Educational Resources Information Center

    Fisher, Maurice D., Ed.

    1995-01-01

    This document consists of the four issues of the newsletter "Gifted Education Press Quarterly" published during 1995. This newsletter addresses issues in the education of gifted children and youth. The major articles are: (1) "Using Today's Technology: Parents Can Help Challenge Gifted Children" (Adrienne O'Neill); (2) "Outcomes-Based Education…

  4. Gifted Education Press Quarterly, 2002.

    ERIC Educational Resources Information Center

    Fisher, Maurice D., Ed.

    2002-01-01

    These four issues of a quarterly publication for gifted educators and parents of gifted children span winter 2002 through fall 2002. Featured articles include: (1) "Cultivating Courage, Creativity, and Caring" (James T. Webb), which discusses the need to encourage the development of courage and caring, as well as creativity in gifted students; (2)…

  5. Education Statistics Quarterly, Fall 2000.

    ERIC Educational Resources Information Center

    Dillow, Sally, Ed.

    2000-01-01

    The "Education Statistics Quarterly" gives a comprehensive overview of work done across all parts of the National Center for Education Statistics (NCES). Each issue contains short publications, summaries, and descriptions that cover all NCES publications and data products released during a 3-month period. Each message also contains a message from…

  6. JLTN Quarterly, 1995-1996.

    ERIC Educational Resources Information Center

    JLTN Quarterly, 1996

    1996-01-01

    This document consists of the four issues of the "JLTN Quarterly" issued from December 1995 to October 1996. This journal for high school Japanese language teachers contain articles on class activities and classroom teaching techniques. These include: exercises in interpretation of a Toys "R" Us store map and advertising; a weather discussion…

  7. Circumstellar chemistry

    NASA Technical Reports Server (NTRS)

    Glassgold, A. E.; Mamon, G. A.

    1991-01-01

    Recent theoretical studies of circumstellar chemistry are discussed for both red-giant and protostellar winds. The generalized photochemical model is able to account for the recently discovered silicon-bearing molecules in the prototypical, C-rich, AGB star IRC + 10216. The surprising occurrence of CO in protostellar winds that are largely atomic is interpreted to be the result of the high density and the rapid decrease of the temperature with distance that is expected for such winds.

  8. Natural gas imports and exports; Fourth quarterly report, 1993

    SciTech Connect

    1993-12-31

    The Office of Fuels Programs prepares quarterly reports summarizing the data provided by companies authorized to import or export natural gas. Companies are required, as a condition of their authorizations, to file quarterly reports with the OFP. This report is for the fourth quarter of 1993 (October--December). Attachment A shows the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the 5 most recent reporting quarters. Attachment B shows volumes and prices of gas purchased by long-term importers and exporters during the past 12 months. Attachment C shows volume and price information for gas imported on a short-term basis. Attachment D shows the gas exported on a short-term basis to Canada and Mexico. During 1993, data indicates gas imports grew by about 10 percent over the 1992 level (2328 vs. 2122 Bcf), with Canadian and Algerian imports increasing by 8 and 82 percent, respectively. During the same time period, exports declined by 41 percent (144 vs. 243 Bcf). Exports to Canada decreased 47 percent from the 1992 level (50 vs. 95 Bcf) and exports to Mexico decreased by 60 percent (38 vs. 95 Bcf).

  9. Computational chemistry

    NASA Technical Reports Server (NTRS)

    Arnold, J. O.

    1987-01-01

    With the advent of supercomputers, modern computational chemistry algorithms and codes, a powerful tool was created to help fill NASA's continuing need for information on the properties of matter in hostile or unusual environments. Computational resources provided under the National Aerodynamics Simulator (NAS) program were a cornerstone for recent advancements in this field. Properties of gases, materials, and their interactions can be determined from solutions of the governing equations. In the case of gases, for example, radiative transition probabilites per particle, bond-dissociation energies, and rates of simple chemical reactions can be determined computationally as reliably as from experiment. The data are proving to be quite valuable in providing inputs to real-gas flow simulation codes used to compute aerothermodynamic loads on NASA's aeroassist orbital transfer vehicles and a host of problems related to the National Aerospace Plane Program. Although more approximate, similar solutions can be obtained for ensembles of atoms simulating small particles of materials with and without the presence of gases. Computational chemistry has application in studying catalysis, properties of polymers, all of interest to various NASA missions, including those previously mentioned. In addition to discussing these applications of computational chemistry within NASA, the governing equations and the need for supercomputers for their solution is outlined.

  10. Quarterly coal report, October--December 1996

    SciTech Connect

    1997-05-01

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. This report presents detailed quarterly data for October through December 1996 and aggregated quarterly historical data for 1990 through the third quarter of 1996. Appendix A displays, from 1988 on, detailed quarterly historical coal imports data. To provide a complete picture of coal supply and demand in the US, historical information has been integrated in this report. 8 figs., 72 tabs.

  11. National Trends In Spending On And Use Of Oral Oncologics, First Quarter 2006 Through Third Quarter 2011

    PubMed Central

    Conti, Rena M.; Fein, Adam J.; Bhatta, Sumita S.

    2015-01-01

    Oral prescription drugs are an increasingly important treatment option for cancer. Yet contemporaneous US trends in spending on anticancer drugs known as oral oncologics have not been described. Using nationally representative data, we describe trends in national spending on and use of forty-seven oral oncologics between the first quarter of 2006 and the third quarter of 2011. Average quarterly national spending on oral oncologics increased 37 percent, from $940.3 million to $1.4 billion in 2012 dollars, a significant change. Average quarterly use of oral oncologics in the same time period measured in extended units increased at a significant pace but more slowly than spending (10 percent). Within this broader trend, differences in spending among categories of oral oncologics were observed. High levels of and increases in both spending and use were concentrated among new brand-name and patent-protected oral oncologics, including second-generation tyrosine kinase inhibitors used to treat chronic myelogenous leukemia. Decreased spending but increased use was observed among oral oncologics that lost patent protection during the study period and were available in generic form, including hormonal therapies used to treat breast and prostate cancers. Spending on new and patent-protected oral oncologics and associated price increases are significant drivers of increased spending. PMID:25288415

  12. New Trends in Chemistry Teaching, Volume III.

    ERIC Educational Resources Information Center

    Cartmell, E.

    In this third volume of the United Nations Educational, Scientific and Cultural Organization's (UNESCO) series on "New Trends in Chemistry Teaching," a total of 29 papers originally published during the period from 1969 to 1971 in leading chemistry-teaching periodicals of the world is compiled for the purpose of promoting information exchange. The…

  13. Chemistry, A Syllabus for Secondary Schools.

    ERIC Educational Resources Information Center

    New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.

    Presented is a modern view of chemistry suitable for pupils with a wide range of skills and abilities. The outline of topics provides the unifying principles of chemistry together with related facts. The principles included in the outline are basic to man's understanding of his environment. The topical outline is divided into nine major units:…

  14. Chemistry and mineralogy of natural bitumens and heavy oils and their reservoir rocks from the United States, Canada, Trinidad and Tobago, and Venezuela

    USGS Publications Warehouse

    Hosterman, John W.; Meyer, R.F.; Palmer, C.A.; Doughten, M.W.; Anders, D.E.

    1990-01-01

    Twenty-one samples from natural bitumen and heavy oil deposits in seven States of the United States and six samples from outside the United States form the basis of this initial study. This Circular gives the mineral content of the reservoir rock, the trace-element distribution in the reservoir rock and hydrocarbons, and the composition of the heavy oil and natural bitumen. The reservoir rock and sediment residues from California contain more trace-element maximum amounts than any of the other rock samples. These relatively high concentrations of trace elements may be due, in part, to the low quartz content of the rock and to the presence of heulandite, cristobalite, siderite, and pyrite. The reservoir rock and sediment residues from Oklahoma contain more minimum amounts of trace elements than any of the other rock samples. This pattern probably results from the large amount of quartz in four of the samples and a large amount of calcite in the other sample. The maximum and minimum amounts of trace elements in the bitumen and heavy oil do not correlate with those in the reservoir rocks. The bitumen from Utah contains the greatest number of trace-element maxima, whereas there is no trend in the trace-element minima in the bitumen and heavy oil.

  15. Argumentation in Undergraduate Chemistry Laboratories

    ERIC Educational Resources Information Center

    Walker, Joi Phelps

    2011-01-01

    To address the need for reform in undergraduate science education a new instructional model called "Argument-Driven Inquiry" (ADI) was developed and then implemented in a undergraduate chemistry course at a community college in the southeastern United States (Sampson, Walker, & Grooms, 2009; Walker, Sampson, & Zimmerman, in press). The ADI…

  16. Vocational Chemistry: A High School Option

    ERIC Educational Resources Information Center

    Nagel, M. C.

    1976-01-01

    Describes a project-oriented high school chemistry course that utilizes laboratory units in which the students make a practical product, such as soap, thus exposing them to career possibilities. (MLH)

  17. Is single-4-ring the most basic but elusive secondary building unit that transforms to larger structures in zinc phosphate chemistry?

    PubMed

    Dar, Aijaz A; Sharma, Sunil K; Murugavel, Ramaswamy

    2015-05-18

    Haloaryl phosphates (X-dippH2, X = Cl, Br, I) react with zinc acetate in the presence of collidine or 2-aminopyridine (2-apy) to yield zinc phosphate clusters [Zn(X-dipp)(collidine)]4 (X = Cl (1), Br (2), I (3)) and [Zn(X-dipp)(2-apy)]4·2MeOH (X = Cl (4), Br (5), I (6)), respectively. Single-crystal X-ray diffraction studies reveal that collidine and 2-apy capped zinc phosphates 1-6 exist as discrete tetrameric zinc phosphate molecules, exhibiting a cubane-shaped D4R core. In contrast, when the same reaction has been carried out in the presence of 4-cyanopyridine (4-CNpy), polymeric zinc phosphates {[Zn4(X-dipp)4(4-CNpy)2(MeOH)2]·2H2O}n (X = Cl (7), Br (8), I (9)) have been isolated. Compounds 7-9 are square-wave-shaped, one-dimensional polymers composed of fused S4R repeating units. The common structural motif found both in D4R cubanes 1-6 and polymers 7-9 is the S4R building block, which presumably undergoes further fusion because of the coordinative unsaturation at zinc and the simultaneous presence of free P═O. The closed shell cubanes 1-6 are obviously formed by a face-to-face dimerization involving two S4R units in which the two P═O groups are in cis-configuration. On the other hand, the one-dimensional (1-D) square-wave polymers 7-9 are formed from a face-to-face association of S4R building units in which the two P═O groups are in a trans-configuration. In order to stabilize these elusive S4R zinc phosphates, the reaction between Cl-dippH2 and zinc acetate was carried out in the presence of excess imidazole as an ancillary ligand (1:1:4), although only an imidazole decorated cubane cluster [Zn(Cl-dipp)(imz)]4.2MeOH (10) was isolated. The chelating N,N'-donor 1,10-phenanthroline ligand was used to eventually isolate cyclic S4R phosphate [Zn(μ2-Cl-dipp)(1,10-phen)(OH2)]2·MeOH·H2O (11). The change of Zn(2+) source to zinc nitrate and the phosphate source to 2,6-dimethylphenyl phosphate (dmppH2) led to the isolation of another polymeric phosphate [Zn

  18. [Hydrodyne quarterly report

    SciTech Connect

    1996-03-01

    In order that this report might stand by itself, a brief description of its goals is as follows. The equipment to tenderize meat by immersing the meat in water in which a small amount of high explosive is detonated was to be designed, fabricated and tested. The equipment was then to be shipped and installed near the ARS Meat Science Laboratory in Beltsville, MD. There further testing was to be done to establish performance characteristics. It was to be shown as an operating plant to meat producers who were potential customers. This document is in letter format; main headings include design of the equipment; new patent; fabrication; testing of unit; prototype plant in Virginia; new developments; tests and potential users; basic investigation.

  19. Vitality and chemistry of roots of red spruce in forest floors of stands with a gradient of soil Al/Ca ratios in the northeastern United States

    USGS Publications Warehouse

    Wargo, P.M.; Vogt, K.; Vogt, D.; Holifield, Q.; Tilley, J.; Lawrence, G.; David, M.

    2003-01-01

    Number of living root tips per branch, percent dead roots, percent mycorrhizae and mycorrhizal morphotype, response of woody roots to wounding and colonization by fungi, and concentrations of starch, soluble sugars, phenols, percent C and N and C/N ratio, and Al Ca, Fe, K, Mg, Mn, and P were measured for 2 consecutive years in roots of red spruce (Picea rubens Sarg.) in stands in the northeastern United States (nine in 1993 and two additional in 1994) dominated by red spruce and with a gradient of forest floor exchangeable Al/Ca ratios. Root vitality was measured for nonwoody and coarse woody roots; chemical variables were measured for nonwoody (<1 mm), fine woody (1 to <2 mm), and coarse woody (2 to <5 mm) roots. There were significant differences among sites for all variables, particularly in 1993, although few were related to the Al/Ca ratio gradient. Percent mycorrhizae decreased, while some morphotypes increased or decreased as the Al/Ca ratio increased. In nonwoody roots, N increased as the Al/Ca ratio increased. Most sampled trees appeared to be in good or fair health, suggesting that an adverse response of these root variables to high Al concentrations may be apparent only after a significant change in crown health.

  20. Stream chemistry in the eastern United States. 2. Current sources of acidity in acidic and low acid-neutralizing-capacity streams

    SciTech Connect

    Herlihy, A.T.; Kaufmann, P.R.; Mitch, M.E.

    1991-01-01

    The authors examined anion composition in National Stream Survey (NSS) data in order to evaluate the most probable sources of current acidity in acidic and low acid neutralizing capacity (ANC) streams in the eastern United States. Acidic streams that had almost no organic influence (less than 10% of total anions) and sulfate and nitrate concentrations indicative of evaporative concentration of atmospheric deposition were classified as acidic due to acidic deposition. These acidic streams were located in small forested watersheds in the Mid-Atlantic Highlands (an estimated 1950 km of stream length) and in the Mid-Atlantic Coastal Plain (1250 km). Acidic streams affected primarily by acidic deposition but also influenced by naturally occurring organic anions accounted for another 1180 km of acidic stream length and were located in the New Jersey Pine Barrens, plateau tops in the Mid-Atlantic and Southeast Highlands, and the Florida Panhandle. The total length of streams acidic due to acid mine drainage in the NSS (4590 km) was about the same as the total length of acidic streams likely affected by acidic deposition (4380 km). Acidic streams whose acid anion composition was dominated by organics were located in Florida and the Mid-Atlantic Coastal Plain. In Florida, most of the acidic streams were organic dominated, whereas about half of the streams in the Mid-Atlantic Coastal Plain were organic dominated. Organic-dominated acidic streams were not observed in the Mid-Atlantic and Southeast Highlands.

  1. Stream chemistry in the eastern United States, 2, Current sources of acidity in acidic and low acid-neutralizing capacity streams

    NASA Astrophysics Data System (ADS)

    Herlihy, Alan T.; Kaufmann, Philip R.; Mitch, Mark E.

    1991-04-01

    We examined anion composition in National Stream Survey (NSS) data in order to evaluate the most probable sources of current acidity in acidic and low acid-neutralizing capacity (ANC) streams in the eastern United States. Acidic streams that had almost no organic influence (less than 10% of total anions) and sulfate and nitrate concentrations indicative of evaporative concentration of atmospheric deposition were classified as acidic due to acidic deposition. These acidic streams were located in small (<30 km2) forested watersheds in the Mid-Atlantic Highlands (an estimated 1950 km of stream length) and in the Mid-Atlantic Coastal Plain (1250 km). Acidic streams affected primarily by acidic deposition but also influenced by naturally occurring organic anions accounted for another 1180 km of acidic stream length and were located in the New Jersey Pine Barrens, plateau tops in the Mid-Atlantic and Southeast Highlands, and the Florida Panhandle. The total length of streams acidic due to acid mine drainage in the NSS (4590 km) was about the same as the total length of acidic streams likely affected by acidic deposition (4380 km). Acidic streams whose acid anion composition was dominated by organics were located in Florida and the Mid-Atlantic Coastal Plain. In Florida, most of the acidic streams were organic dominated, whereas about half of the streams in the Mid-Atlantic Coastal Plain were organic dominated. Organic-dominated acidic streams were not observed in the Mid-Atlantic and Southeast Highlands.

  2. Provocative Opinion: Descriptive Chemistry.

    ERIC Educational Resources Information Center

    Bent, Henry A.; Bent, Brian E.

    1987-01-01

    Discusses many of the distinctions that chemists draw between theoretical chemistry and descriptive chemistry, along with the tendency for chemical educators to adopt the type of chemistry they feel is most important to teach. Uses examples to argue that theoretical chemistry and descriptive chemistry are, at the bottom line, the same. (TW)

  3. Tank waste treatment science task quarterly report, April 1995--June 1995

    SciTech Connect

    LaFemina, J.P.

    1995-07-01

    This report describes the work performed by the Pacific Northwest Laboratory (PNL) during the third quarter of FY 1995 under the Tank Waste Treatment Science Task of the Tank Waste Remediation System (TWRS) Pretreatment Technology Development Project. Work was performed in the following areas: (1) analytical methods development, (2) sludge dissolution modeling, (3) sludge characterization studies, (4) sludge component speciation, (5) pretreatment chemistry evaluation, and (6) colloidal studies for solid-liquid separations.

  4. LFCM (liquid-fed ceramic melter) vitrification technology: Quarterly progress report, January--March 1987

    SciTech Connect

    Brouns, R. A.; Allen, C. R.; Powell, J. A.

    1988-05-01

    This report is compiled by the Nuclear Waste Treatment Program and the Hanford Waste Vitrification Program at Pacific Northwest Laboratory to describe the progress in developing, testing, applying and documenting liquid-fed ceramic melter vitrification technology. Progress in the following technical subject areas during the second quarter of FY 1987 is discussed: melting process chemistry and glass development, feed preparation and transfer systems, melter systems, canister filling and handling systems, and process/product modeling. 23 refs., 14 figs., 10 tabs.

  5. Crew quarters for Space Station

    NASA Technical Reports Server (NTRS)

    Mount, F. E.

    1989-01-01

    The only long-term U.S. manned space mission completed has been Skylab, which has similarities as well as differences to the proposed Space Station. With the exception of Skylab missions, there has been a dearth of experience on which to base the design of the individual Space Station Freedom crew quarters. Shuttle missions commonly do not have sleep compartments, only 'sleeping arrangements'. There are provisions made for each crewmember to have a sleep restraint and a sleep liner, which are attached to a bulkhead or a locker. When the Shuttle flights began to have more than one working shift, crew quarters became necessary due to noise and other disturbances caused by crew task-related activities. Shuttle missions that have planned work shifts have incorporated sleep compartments. To assist in gaining more information and insight for the design of the crew quarters for the Space Station Freedom, a survey was given to current crewmembers with flight experience. The results from this survey were compiled and integrated with information from the literature covering space experience, privacy, and human-factors issues.

  6. Natural gas imports and exports. First quarter report 1997

    SciTech Connect

    1997-09-01

    The Office of Natural Gas and Petroleum Import and Export Activities prepares quarterly reports summarizing the data provided by companies authorized to import or export natural gas. Attachment A shows the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the five most recent reporting quarters. Attachment B shows volumes and prices of gas purchased by long-term importers and exporters during the past 12 months. Attachment C shows volume and price information pertaining to gas imported on a short-term or spot market basis. Attachment D shows the gas exported on a short-term or spot market basis to Canada and Mexico. 14 figs., 9 tabs.

  7. Natural gas imports and exports. Third quarter report 1997

    SciTech Connect

    1998-01-01

    This quarterly report, prepared by The Office of Natural Gas and Petroleum Import and Export Activities, summarizes the data provided by companies authorized to import or export natural gas. Numerical data are presented in four attachments, each of which is comprised of a series of tables. Attachment A shows the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the five most recent calendar quarters. Volumes and prices of gas purchased by long-term importers and exporters during the past year are given in Attachment B. Attachment C shows volume and price information pertaining to gas imported on a short-term or spot market basis. Attachment D lists gas exported on a short-term or spot market basis to Canada and Mexico. Highlights of the report are very briefly summarized.

  8. Chemistry and origin of minor and trace elements in vitrinite concentrates from a rank series from the eastern United States, England, and Australia

    USGS Publications Warehouse

    Lyons, P.C.; Palmer, C.A.; Bostick, N.H.; Fletcher, J.D.; Dulong, F.T.; Brown, F.W.; Brown, Z.A.; Krasnow, M.R.; Romankiw, L.A.

    1989-01-01

    A rank series consisting of twelve vitrinite concentrates and companion whole-coal samples from mined coal beds in the eastern United States, England, and Australia were analyzed for C, H, N, O, ash, and 47 trace and minor elements by standard elemental, instrumental neutron activation analysis (INAA), and direct-current-arc spectrographic (DCAS) techniques. The reflectance of vitrinite, atomic H:C and O:C, and ash-free carbon data were used to determine ranks that range from high-volatile C bituminous coal to meta-anthracite. A van Krevelen (atomic H:C vs. O:C) diagram of the vitrinite concentrates shows a smooth curve having its lowest point at H:C = 0.18 and O:C = 0.01. This improves the van Krevelen diagram by the addition of our vitrinite concentrate from meta-anthracite from the Narragansett basin of New England. Boron content (400-450 ppm) in two Illinois basin vitrinite concentrates was about an order of magnitude higher than B contents in other concentrates analyzed. We attribute this to marine origin or hydrothermal activity. The alkaline-earth elements Ca, Mg and Ba (DCAS) have higher concentrations in our vitrinite concentrates from bituminous coals of the Appalachian basin, than they do in vitrinite concentrates from the marine-roofed bituminous coals of the Illinois basin; therefore, a nonmarine origin for these alkaline-earth elements is postulated for the Appalachian basin coals. An ion-exchange mechanism due to high concentrations of these elements as ions in diagenetic water, but probably not recent ground water, may be responsible for the relatively high values of these elements in Appalachian concentrates. Higher concentrations of Ni and Cr in one of the English vitrinite concentrates and of Zr in the Australian concentrate probably indicate organic association and detrital influence, respectively. ?? 1989.

  9. Environmental Biosciences Program Quarterly Report

    SciTech Connect

    Lawrence C. Mohr, M.D.

    2009-01-30

    Current research projects have focused Environmental Biosciences Program (EBP) talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene, low-dose ionizing radiation (gamma and neutron) and alpha radiation from plutonium. Trichloroethylene research has been conducted as a joint collaborative effort with the University of Georgia. Work on the trichloroethylene research projects has been slowed as a result of funding uncertainties. The impact of these funding uncertainties has been discussed with the United States Department of Energy (DOE). Laboratory work has been completed on several trichloroethylene risk assessment projects, and these projects have been brought to a close. Plans for restructuring the performance schedule of the remaining trichloroethylene projects have been submitted to the department. A comprehensive manuscript on the scientific basis of trichloroethylene risk assessment is in preparation. Work on the low-dose radiation risk assessment projects is also progressing at a slowed rate as a result of funding uncertainties. It has been necessary to restructure the proponency and performance schedule of these projects, with the project on Low-Dose Radiation: Epidemiology Risk Models transferred to DOE Office of Science proponency under a separate funding instrument. Research on this project will continue under the provisions of the DOE Office of Science funding instrument, with progress reported in accordance with the requirements of that funding instrument. Progress on that project will no longer be reported in quarterly reports for DE-FC09-02CH11109. Following a meeting at the Savannah River Site on May 8, 2008, a plan was submitted for development of an epidemiological cohort study and prospective medical surveillance system for the assessment of disease rates among workers at the Savannah River

  10. Environmental Biosciences Quarterly Report

    SciTech Connect

    Lawrence C. Mohr, M.D.

    2007-01-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems. Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene and low-dose ionizing radiation. Work on the trichloroethylene research projects has been slowed as a result of funding uncertainties. The impact of these funding uncertainties has been discussed with the DOE. Plans for restructuring the performance schedule of the trichloroethylene projects have been submitted to the department. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making. Questions, comments or requests for further information concerning the activities under this cooperative

  11. Quarterly coal report, October--December 1994

    SciTech Connect

    1995-05-23

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (Public Law 93-275), as amended. This report presents detailed quarterly data for October through December 1994 and aggregated quarterly historical data for 1986 through the third quarter of 1994. Appendix A displays, from 1986 on, detailed quarterly historical coal imports data, as specified in Section 202 of the Energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons.

  12. Quarterly coal report, January--March 1995

    SciTech Connect

    1995-08-24

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (Public Law 93-275), as amended. This report presents detailed quarterly data for January through March 1995 and aggregated quarterly historical data for 1987 through the fourth quarter of 1994. Appendix A displays, from 1987 on, detailed quarterly historical coal imports data, as specified in Section 202 of the Energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons.

  13. Quarterly coal report, January--March 1997

    SciTech Connect

    1997-08-01

    This Quarterly Coal Report (QCR) provides comprehensive information about U.S. coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience,including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (Public Law 93-275), as amended. This report presents detailed quarterly data for January through March 1997 and aggregated quarterly historical data for 1991 through the fourth quarter of 1996. Appendix A displays, from 1988 on, detailed quarterly historical coal imports data, as specified in Section 202 of the Energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons.

  14. Quarterly coal report, October--December 1997

    SciTech Connect

    1998-05-01

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities. This report presents detailed quarterly data for october through December 1997 and aggregated quarterly historical data for 1991 through the third quarter of 1997. Appendix A displays, from 1991 on, detailed quarterly historical coal imports data, as specified in Section 202 of the energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons. To provide a complete picture of coal supply and demand in the US, historical information has been integrated in this report. 8 figs., 73 tabs.

  15. Quarterly coal report, January--March 1994

    SciTech Connect

    Not Available

    1994-08-24

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (Public Law 93-275), as amended. This report presents detailed quarterly data for January through March 1994 and aggregated quarterly historical data for 1986 through the fourth quarter of 1993. Appendix A displays, from 1986 on, detailed quarterly historical coal imports data, as specified in Section 202 of the Energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons.

  16. Combustion chemistry

    SciTech Connect

    Brown, N.J.

    1993-12-01

    This research is concerned with the development and use of sensitivity analysis tools to probe the response of dependent variables to model input variables. Sensitivity analysis is important at all levels of combustion modeling. This group`s research continues to be focused on elucidating the interrelationship between features in the underlying potential energy surface (obtained from ab initio quantum chemistry calculations) and their responses in the quantum dynamics, e.g., reactive transition probabilities, cross sections, and thermal rate coefficients. The goals of this research are: (i) to provide feedback information to quantum chemists in their potential surface refinement efforts, and (ii) to gain a better understanding of how various regions in the potential influence the dynamics. These investigations are carried out with the methodology of quantum functional sensitivity analysis (QFSA).

  17. Why Teach Environmental Chemistry?

    ERIC Educational Resources Information Center

    Gardner, Marjorie H.

    1974-01-01

    Discusses the importance of teaching environmental chemistry in secondary school science classes, and outlines five examples of environmental chemistry problems that focus on major concepts of chemistry and have critical implications for human survival and well-being. (JR)

  18. Science Update: Inorganic Chemistry

    ERIC Educational Resources Information Center

    Rawls, Rebecca

    1978-01-01

    This first in a series of articles describing the state of the art of various branches of chemistry reviews inorganic chemistry, including bioinorganic, photochemistry, organometallic, and solid state chemistries. (SL)

  19. Short-term energy outlook, quarterly projections, second quarter 1998

    SciTech Connect

    1998-04-01

    The Energy Information Administration (EIA) prepares quarterly short-term energy supply, demand, and price projections. The details of these projections, as well as monthly updates, are available on the Internet at: www.eia.doe.gov/emeu/steo/pub/contents.html. The paper discusses outlook assumptions; US energy prices; world oil supply and the oil production cutback agreement of March 1998; international oil demand and supply; world oil stocks, capacity, and net trade; US oil demand and supply; US natural gas demand and supply; US coal demand and supply; US electricity demand and supply; US renewable energy demand; and US energy demand and supply sensitivities. 29 figs., 19 tabs.

  20. Short-term energy outlook. Quarterly projections, Third quarter 1994

    SciTech Connect

    Not Available

    1994-08-02

    The Energy Information Administration (EIA) prepares quarterly, short-term energy supply, demand, and price projections for publication in February, May, August, and November in the Short-Term Energy Outlook (Outlook). An annual supplement analyzes the performance of previous forecasts, compares recent cases with those of other forecasting services, and discusses current topics related to the short-term energy markets. (See Short-Term Energy Outlook Annual Supplement, DOE/EIA-0202). The feature article for this issue is Demand, Supply and Price Outlook for Reformulated Gasoline, 1995.

  1. 1. GENERAL VIEW OF SLAVE QUARTERS No. 2 (right). Located ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. GENERAL VIEW OF SLAVE QUARTERS No. 2 (right). Located north of main house. The building at left is Slave Quarters No. 1 (HABS No. VA-1233 C) - Westend, Slave Quarters No. 2, Route 638 vicinity, Trevilians, Louisa County, VA

  2. 1. CARRIAGE HOUSE (left) AND SLAVE QUARTERS, SOUTH FRONT. A ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. CARRIAGE HOUSE (left) AND SLAVE QUARTERS, SOUTH FRONT. A kitchen was included in the quarters. - Charles Fraser House, Carriage House & Slave Quarters, 55 King Street, Charleston, Charleston County, SC

  3. Science Update: Inorganic Chemistry.

    ERIC Educational Resources Information Center

    Rawls, Rebecca

    1981-01-01

    Describes areas of inorganic chemistry which have changed dramatically in the past year or two, including photochemistry, electrochemistry, organometallic complexes, inorganic reaction theory, and solid state chemistry. (DS)

  4. Metallurgical Laboratory Hazardous Waste Management Facility groundwater monitoring report. Third quarter, 1994

    SciTech Connect

    Not Available

    1994-12-01

    During third quarter 1994, samples from AMB groundwater monitoring wells at the Metallurgical Laboratory Hazardous Waste Management Facility (Met Lab HWMF) were analyzed for selected heavy metals, indicator parameters, radionuclides, volatile organic compounds, and other constituents. Eight parameters exceeded standards during the quarter. As in previous quarters, tetrachloroethylene and trichloroethylene exceeded final Primary Drinking Water Standards (PDWS). Bis(2-ethylhexyl) phthalate exceeded final PDWS in one well. Aluminum, iron, manganese, tin, and total organic halogens exceeded the Savannah River Site (SRS) Flag 2 criteria. Groundwater flow direction and rate in the M-Area Aquifer Zone were similar to previous quarters. Conditions affecting determination of groundwater flow directions and rates in the Upper Lost Lake Aquifer Zone, Lower Lost Lake Aquifer Zone, and the Middle Sand Aquifer Zone of the Crouch Branch Confining Unit were also similar to previous quarters. During second quarter 1994, SRS received South Carolina Department of Health and Environmental Control approval for constructing five point-of-compliance wells and two plume definition wells near the Met Lab HWMF. This project began in July 1994 and is complete; however, analytical data from these wells is not available yet.

  5. Mixed waste management facility groundwater monitoring report. Fourth quarter 1995 and 1995 summary

    SciTech Connect

    1996-03-01

    During fourth quarter 1995, seven constituents exceeded final Primary Drinking Water Standards (PDWS) in groundwater samples from downgradient monitoring wells at the Mixed Waste Management Facility. No constituents exceeded final PDWS in samples from the upgradient monitoring wells. As in previous quarters, tritium and trichloroethylene were the most widespread elevated constituents. Chloroethene, gross alpha, lead, mercury, and tetrachloroethylene also exceeded final PDWS in one or more wells. Elevated constituents were found in numerous Aquifer Zone IIB{sub 2} (Water Table) and Aquifer Zone IIB{sub 1} (Barnwell/McBean) wells and in three Aquifer Unit IIA (Congaree) wells. The groundwater flow directions and rates in the three hydrostratigraphic units were similar to those of previous quarters.

  6. Mixed Waste Management Facility (MWMF) groundwater monitoring report. First quarter 1993

    SciTech Connect

    Not Available

    1993-06-01

    During first quarter 1993, eight constituents exceeded final Primary Drinking Water Standards in groundwater samples from downgradient monitoring wells at the Mixed Waste anagement Facility, the Old Burial Ground, the E-Area Vaults, and the proposed Hazardous Waste/Mixed Waste Disposal Vaults (HWMWDV). As in previous quarters, tritium and trichloroethylene were the most widespread constituents. Tetrachloroethylene, chloroethene, 1,1-dichloroethylene, gross alpha, lead, or nonvolatile beta levels also exceeded standards in one or more wells. The elevated constituents were found primarily in Aquifer Zone IIB{sub 2} (Water Table) and Aquifer Zone IIB{sub 1}, (Barnwell/McBean) wells. However, several Aquifer Unit IIA (Congaree) wells also contained elevated constituent levels. The groundwater flow directions and rates in the three hydrostratigraphic units were similar to previous quarters.

  7. Mixed Waste Management Facility (MWMF) groundwater monitoring report. Fourth quarter 1993 and 1993 summary

    SciTech Connect

    Butler, C.T.

    1994-03-01

    During fourth quarter 1993, 10 constituents exceeded final Primary Drinking Water Standards in groundwater samples from downgradient monitoring wells at the Mixed Waste Management Facility, the Old Burial Ground, the E-Area Vaults, and the proposed Hazardous Waste/Mixed Waste Disposal Vaults. As in previous quarters, tritium and trichloroethylene were the most widespread elevated constituents. Carbon tetrachloride, chloroform, chloroethane (vinyl chloride), 1,1-dichloroethylene, dichloromethane (methylene chloride), lead, mercury, or tetrachloroethylene also exceeded standards in one or more wells. Elevated constituents were found in numerous Aquifer Zone 2B{sub 2} (Water Table) and Aquifer Zone 2B{sub 1}, (Barnwell/McBean) wells and in two Aquifer Unit 2A (Congaree) wells. The groundwater flow direction and rates in the three hydrostratigraphic units were similar to those of previous quarters.

  8. Weldon Spring Site Remedial Action Project quarterly environmental data summary (QEDS) for fourth quarter 1998

    SciTech Connect

    1999-02-01

    This report contains the Quarterly Environmental Data Summary (QEDS) for the fourth quarter of 1998 in support of the Weldon Spring Site Remedial Action Project Federal Facilities Agreement. The data, except for air monitoring data and site KPA generated data (uranium analyses) were received from the contract laboratories, verified by the Weldon Spring Site verification group, and merged into the database during the fourth quarter of 1998. KPA results for on-site total uranium analyses performed during fourth quarter 1998 are included. Air monitoring data presented are the most recent complete sets of quarterly data.

  9. Applied Meteorology Unit (AMU)

    NASA Technical Reports Server (NTRS)

    Bauman, William; Lambert, Winifred; Wheeler, Mark; Barrett, Joe; Watson, Leela

    2007-01-01

    This report summarizes the Applied Meteorology Unit (AMU) activities for the second quarter of Fiscal Year 2007 (January - March 2007). Tasks reported on are: Obiective Lightning Probability Tool, Peak Wind Tool for General Forecasting, Situational Lightning Climatologies for Central Florida, Anvil Threat Corridor Forecast Tool in AWIPS, Volume Averaqed Heiqht lnteq rated Radar Reflectivity (VAHIRR), Tower Data Skew-t Tool, and Weather Research and Forecastini (WRF) Model Sensitivity Study

  10. The Impact of Nursing Students' Prior Chemistry Experience on Academic Performance and Perception of Relevance in a Health Science Course

    ERIC Educational Resources Information Center

    Boddey, Kerrie; de Berg, Kevin

    2015-01-01

    Nursing students have typically found the study of chemistry to be one of their major challenges in a nursing course. This mixed method study was designed to explore how prior experiences in chemistry might impact chemistry achievement during a health science unit. Nursing students (N = 101) studying chemistry as part of a health science unit were…

  11. 14. INTERIOR OF TYPICAL SLEEPING QUARTERS, BUILDING 208, LOOKING SOUTHEAST. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. INTERIOR OF TYPICAL SLEEPING QUARTERS, BUILDING 208, LOOKING SOUTHEAST. - Mill Valley Air Force Station, Bachelor Airmen Quarters, East Ridgecrest Boulevard, Mount Tamalpais, Mill Valley, Marin County, CA

  12. Trace Chemistry

    NASA Technical Reports Server (NTRS)

    Radhakrishnan, Krishnan; Whitefield, Philip

    1999-01-01

    The goals of the trace chemistry group were to identify the processes relevant to aerosol and aerosol precursor formation occurring within aircraft gas turbine engines; that is, within the combustor, turbine, and nozzle. The topics of discussion focused on whether the chemistry of aerosol formation is homogeneous or heterogeneous; what species are important for aerosol and aerosol precursor formation; what modeling/theoretical activities to pursue; what experiments to carry out that both support modeling activities and elucidate fundamental processes; and the role of particulates in aerosol and aerosol precursor formation. The consensus of the group was that attention should be focused on SO2, SO3, and aerosols. Of immediate concern is the measurement of the concentration of the species SO3, SO2, H2SO4 OH, HO2, H2O2, O, NO, NO2, HONO, HNO3, CO, and CO2 and particulates in various engines, both those currently in use and those in development. The recommendation was that concentration measurements should be made at both the combustor exit and the engine exit. At each location the above species were classified into one of four categories of decreasing importance, Priority I through IV, as follows: Combustor exit: Priority I species - SO3:SO2 ratio, SO3, SO2, and particulates; Priority II species: OH and O; Priority III species - NO and NO2; and Priority IV species - CO and CO2. For the Engine exit: Priority I species - SO3:SO2 ratio, SO3, SO2,H2SO4, and particulates; Priority II species: OH,HO2, H2O2, and O; Priority III species - NO, NO2, HONO, and HNO3; and Priority IV species - CO and CO2. Table I summarizes the anticipated concentration range of each of these species. For particulate matter, the quantities of interest are the number density, size distribution, and composition. In order to provide data for validating multidimensional reacting flow models, it would be desirable to make 2-D, time-resolved measurements of the concentrations of the above species and

  13. 46 CFR 131.570 - Quarterly inspections.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Quarterly inspections. 131.570 Section 131.570 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS OPERATIONS Tests, Drills, and Inspections § 131.570 Quarterly inspections. (a) Each apparatus that controls a lifeboat winch, including motor controllers,...

  14. 10 CFR 34.29 - Quarterly inventory.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 1 2010-01-01 2010-01-01 false Quarterly inventory. 34.29 Section 34.29 Energy NUCLEAR REGULATORY COMMISSION LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS Equipment § 34.29 Quarterly inventory. (a) Each licensee shall conduct a...

  15. 10 CFR 34.29 - Quarterly inventory.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 1 2011-01-01 2011-01-01 false Quarterly inventory. 34.29 Section 34.29 Energy NUCLEAR REGULATORY COMMISSION LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS Equipment § 34.29 Quarterly inventory. (a) Each licensee shall conduct a...

  16. RTO Technical Publications: A Quarterly Listing

    NASA Technical Reports Server (NTRS)

    2005-01-01

    A quarterly listing of RTO technical publications is presented. The topics include: Handbook on the Analysis of Smaller-Scale Contingency Operations in Long Term Defence Planning; 2) Radar Polarimetry and Interferometry; 3) Combat Casualty Care in Ground-Based Tactical Situations: Trauma Technology and Emergency Medical Procedures; and 4) RTO Technical Publications: A Quarterly Listing

  17. 49 CFR 573.7 - Quarterly reports.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 7 2010-10-01 2010-10-01 false Quarterly reports. 573.7 Section 573.7... § 573.7 Quarterly reports. (a) Each manufacturer who is conducting a defect or noncompliance... accordance with the manufacturer's plan provided to NHTSA pursuant to § 573.6(c)(9); (ii) The...

  18. 49 CFR 573.7 - Quarterly reports.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 7 2011-10-01 2011-10-01 false Quarterly reports. 573.7 Section 573.7... § 573.7 Quarterly reports. (a) Each manufacturer who is conducting a defect or noncompliance... accordance with the manufacturer's plan provided to NHTSA pursuant to § 573.6(c)(9); (ii) The...

  19. Identification of subsurface microorganisms at Yucca Mountain; Fourth quarterly report

    SciTech Connect

    Stetzenbach, L.D.

    1993-08-01

    Bacteria isolated from water samples collected in a series of ground water springs have been isolated, enumerated, and identified from twenty six sites. Ten sites were sampled in Death Valley, California and sixteen sites were sampled in Ash Meadows, Nevada. Replicate samples were collected and tested from four locations. All water samples were collected in conjunction with the HRC chemistry group conducting ground water fingerprinting studies. The protocol for collection of samples, as described in the 3rd quarterly report, specified aseptic collection in sterile screw-capped containers and transportation on ice to the HRC microbiology laboratory. All samples were inoculated by spread plating onto R2A (Difco Laboratories, Detroit, MI) bacterial culture medium. the R2A plates were then incubated at 28{degrees} for 5--7 days and colonies wee counted with the aid of a grid template and magnifying lens.

  20. Water Treatment Technology - Chemistry/Bacteriology.

    ERIC Educational Resources Information Center

    Ross-Harrington, Melinda; Kincaid, G. David

    One of twelve water treatment technology units, this student manual on chemistry/bacteriology provides instructional materials for twelve competencies. (The twelve units are designed for a continuing education training course for public water supply operators.) The competencies focus on the following areas: waterborne diseases, water sampling…

  1. Solar Energy Project, Activities: Chemistry & Physics.

    ERIC Educational Resources Information Center

    Tullock, Bruce, Ed.; And Others

    This guide contains lesson plans and outlines of science activities which present concepts of solar energy in the context of chemistry and physics experiments. Each unit presents an introduction to the unit; objectives; required skills and knowledge; materials; method; questions; recommendations for further work; and a teacher information sheet.…

  2. School Chemistry, Trends in Reform, Selected Topics.

    ERIC Educational Resources Information Center

    Chisman, D. G.

    Trends, from 1960 to 1963, in the teaching of chemistry in secondary schools in Austria, Belgium, Denmark, France, Germany, Greece, Ireland, Italy, Netherlands, Norway, Spain, Switzerland, Turkey, United Kingdom, and the United States of America are outlined in the first part of this report of a 1963 working session on the teaching of school…

  3. Idaho National Laboratory Quarterly Occurrence Analysis

    SciTech Connect

    Mitchell, Lisbeth Ann

    2015-11-01

    This report is published quarterly by the Idaho National Laboratory (INL) Quality and Performance Management Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of 85 reportable events (18 from the 4th Qtr FY-15 and 67 from the prior three reporting quarters), as well as 25 other issue reports (including events found to be not reportable and Significant Category A and B conditions) identified at INL during the past 12 months (8 from this quarter and 17 from the prior three quarters).

  4. Natural Gas Imports and Exports. Third Quarter Report 1999

    SciTech Connect

    1999-10-01

    The second quarter 1997 Quarterly Report of Natural Gas Imports and Exports featured a Quarterly Focus report on cross-border natural gas trade between the United States and Mexico. This Quarterly Focus article is a follow-up to the 1997 report. This report revisits and updates the status of some of the pipeline projects discussed in 1997, and examines a number of other planned cross-border pipeline facilities which were proposed subsequent to our 1997 report. A few of the existing and proposed pipelines are bidirectional and thus have the capability of serving either Mexico, or the United States, depending on market conditions and gas supply availability. These new projects, if completed, would greatly enhance the pipeline infrastructure on the U.S.-Mexico border and would increase gas pipeline throughput capacity for cross-border trade by more than 1 billion cubic feet (Bcf) per day. The Quarterly Focus is comprised of five sections. Section I includes the introduction as well as a brief historic overview of U.S./Mexican natural gas trade; a discussion of Mexico's energy regulatory structure; and a review of trade agreements and a 1992 legislative change which allows for her cross-border gas trade in North America. Section II looks at initiatives that have been taken by the Mexican Government since 1995to open its energy markets to greater competition and privatization. Section III reviews Mexican gas demand forecasts and looks at future opportunities for U.S. gas producers to supplement Mexico's indigenous supplies in order to meet the anticipated rapid growth in demand. Section IV examines the U.S.-Mexico natural gas trade in recent years. It also looks specifically at monthly import and export volumes and prices and identifies short-term trends in this trade. Finally, Section V reviews the existing and planned cross-border gas pipeline infrastructure. The section also specifically describes six planned pipelines intended to expand this pipeline network and

  5. Recent Advances in Azaborine Chemistry

    PubMed Central

    Campbell, Patrick G.; Marwitz, Adam J. V.

    2013-01-01

    The chemistry of organoboron compounds has been primarily dominated by their use as powerful reagents in synthetic organic chemistry. Recently, the incorporation of boron as part of a functional target structure has emerged as a useful way to generate diversity in organic compounds. A commonly applied strategy is the replacement of a CC unit with its isoelectronic BN unit. In particular, the BN/CC isosterism of the ubiquitous arene motif has undergone a renaissance in the past decade. The parent molecule of the 1,2-dihydro-1,2-azaborine family has now been isolated. New mono- and polycyclic BN heterocycles have been synthesized for potential use in biomedical and materials science applications. This review is a tribute to Dewar's first synthesis of a monocyclic 1,2-dihydro-1,2-azaborine 50 years ago and discusses recent advances in the synthesis and characterization of carbon(C)-boron(B)-nitrogen(N)-containing heterocycles. PMID:22644658

  6. Quarterly coal report, April--June 1993

    SciTech Connect

    Not Available

    1993-11-26

    In the second quarter of 1993, the United States produced 235 million short tons of coal. This brought the total for the first half of 1993 to 477 million short tons, a decrease of 4 percent (21 million short tons) from the amount produced during the first half of 1992. The decrease was due to a 26-million-short-ton decline in production east of the Mississippi River, which was partially offset by a 5-million-short-ton increase in coal production west of the Mississippi River. Compared with the first 6 months of 1992, all States east of the Mississippi River had lower coal production levels, led by West Virginia and Illinois, which produced 9 million short tons and 7 million short tons less coal, respectively. The principal reasons for the drop in coal output for the first 6 months of 1993 compared to a year earlier were: a decrease in demand for US coal in foreign markets, particularly the steam coal markets; a draw-down of electric utility coal stocks to meet the increase in demand for coal-fired electricity generation; and a lower producer/distributor stock build-up. Distribution of US coal in the first half of 1993 was 15 million short tons lower than in the first half of 1992, with 13 million short tons less distributed to overseas markets and 2 million short tons less distributed to domestic markets.

  7. Orbital Debris Quarterly News, Volume 13, No. 3

    NASA Technical Reports Server (NTRS)

    Liou, J.-C. (Editor); Shoots, Debi (Editor)

    2009-01-01

    This issue of the Orbital Debris Quarterly contains articles on the congressional hearing that was held on orbital debris and space traffic; the update received by the United Nations Committee on the Peaceful Uses of Outer Space (COPUOS) on the collision of the Iridium 33 and Cosmos 2251 satellites; the micrometeoroid and orbital debris (MMOD) inspection of the Hubble Space Telescope Wide Field Planetary Camera; an analysis of the reentry survivability of the Global Precipitation Measurement (GPM) spacecraft; an update on recent major breakup fragments; and a graph showing the current debris environment in low Earth orbit.

  8. Tidd PFBC demonstration project. Quarterly report, October--December 1993

    SciTech Connect

    Not Available

    1994-01-01

    This is the 27th Technical Progress Report submitted to the Department of Energy in connection with the Cooperative Agreement between the DOE and the Ohio Power Company for the Tidd PFBC Demonstration Plant. This report covers the period from October 1, 1993 to December 31, 1993. Major activities during this period involve: (1) The unit operated for 720 hours on coal. (2) There were five gas turbine starts, five bed preheater starts, and three operating periods on coal fire. (3) During the quarter, total gross generation was 36,672 MWH, the peak unit output for one hour was 64 MWH, and the coal consumption was 17,251 tons. (4) Six performance tests were run during this quarter. (5) The unit was tested with four sorbent feed points. (6) The gas turbine low pressure compressor was disassembled to repair cracks in the stationary guide vanes; and (7) a request was sent to the DOE requesting funding for an additional year of operation. Major items planned for the next period include: (a) Continuation of sorbent utilization tests at various bed levels and sulfur retention values and with different coals and adsorbents; and (b) operation at full load.

  9. Education Statistics Quarterly. Volume 5, Issue 3, 2003. NCES 2005-609

    ERIC Educational Resources Information Center

    National Center for Education Statistics, 2004

    2004-01-01

    The National Center for Education Statistics (NCES) fulfills a congressional mandate to collect and report "statistics and information showing the condition and progress of education in the United States and other nations in order to promote and accelerate the improvement of American education." The "Quarterly" offers an accessible, convenient…

  10. Education Statistics Quarterly. Volume 6, Issue 3, 2004. NCES 2005-612

    ERIC Educational Resources Information Center

    National Center for Education Statistics, 2005

    2005-01-01

    The National Center for Education Statistics (NCES) fulfills a congressional mandate to collect and report "statistics and information showing the condition and progress of education in the United States and other nations in order to promote and accelerate the improvement of American education." The "Quarterly" offers a comprehensive overview of…

  11. Educational Technology Program. Quarterly Technical Summary, 1 June through 31 August 1971.

    ERIC Educational Resources Information Center

    Frick, Frederick C.

    During the quarter covered by this report, the design of the Lincoln Training System-3 (LTS-3) Terminal System was completed and construction of a prototype unit begun. Four major hardware developments occurred: 1) An Image Systems, Incorporated Model 201 CARD Reader was converted into the LTS-3 audio-visual student terminal; 2) the first of five…

  12. F-Area Seepage Basins groundwater monitoring report, fourth quarter 1991 and 1991 summary

    SciTech Connect

    Not Available

    1992-03-01

    This progress report for fourth quarter 1991 and 1991 summary fro the Savannah River Plant includes discussion on the following topics: description of facilities; hydrostratigraphic units; monitoring well nomenclature; integrity of the monitoring well network; groundwater monitoring data; analytical results exceeding standards; tritium, nitrate, and pH time-trend data; water levels; groundwater flow rates and directions; upgradient versus downgradient results.

  13. Environmental Chemistry Update

    NASA Astrophysics Data System (ADS)

    1995-08-01

    the Great Lakes may contain more than 600,000 kg of the herbicide and that its residence time there is in years. Atrazine concentrations in rivers that flow into these lakes can exceed 20,000 ppt (i.e., 20 ppb) (9). There are about 600 basic ingredients in the 34,000 pesticides registered with the U.S. EPA. Approximately 75% of all U.S. cropland and 70% of livestock are treated with pesticides. In 1991, 495 million pounds of herbicides, 175 million pounds of insecticides, 75 million pounds of fungicides, and 72 million pounds of other pesticides were used; this accounted for three-quarters of all pesticide use in the United States (10). Environmental EstrogensDDT and its metabolite DDE, as well as methoxychlor, dieldrin, kepone, and some PCB's are thought to be environmental estrogens. These synthetic compounds are found in the environment and mimic the action of the sex hormone estrogen because they can bind to the estrogen receptor in cells. Some scientists are worried that they can disrupt the hormone balance in human eggs and fetuses, thus causing reproductive abnormalities. Examples of reproductive problems caused by such chemicals have already been observed in wildlife, such as alligators in Florida. They may also play a role in inducing cancer in humans (11). The U.S. EPA has issued a 2000-page draft of its reassessment of the health risks of dioxins. The report reaffirms their 1985 conclusion that it is a probable cause of cancer in humans. Even trace amounts of dioxins may also disrupt regulatory hormones, produce reproductive and immune-system disorders, and lead to abnormal fetal development. Although waste combustion produces 95% of all known dioxin emissions in the United States, about half its source is unknown. Dioxin levels in the environment were small until about 1930, peaked about 1970, and have declined since then. Human body burdens of dioxins may also have declined. The Toxic Equivalent intake of dioxins and furans of Americans is currently about

  14. Applied Meteorology Unit (AMU) Quarterly Report Third Quarter FY · 13

    NASA Technical Reports Server (NTRS)

    Bauman, William; Crawford, Winifred; Watson, Leela; Shafer, Jaclyn; Huddleston, Lisa

    2013-01-01

    The AMU team worked on seven tasks for their customers: (1) Ms. Crawford completed the objective lightning forecast tool for east -central Florida airports and delivered the tool and the final report to the customers. (2) Ms. Shafer continued work for Vandenberg Air Force Base on an automated tool to relate pressure gradients to peak winds. (3) Dr. Huddleston updated and delivered the tool that shows statistics on the timing of the first lightning strike of the day in the Kennedy Space Center (KSC)/Cape Canaveral Air Force Station (CCAFS) area. (4) Dr. Bauman continued work on a severe weather forecast tool focused on the Eastern Range (ER). (5) Ms. Crawford acquired the software and radar data needed to create a dual-Doppler analysis over the east-central Florida and KSC/CCAFS areas. (6) Mr. Decker continued developing a wind pairs database for the Launch Services Program to use when evaluating upper-level winds for launch vehicles. (7) Dr. Watson continued work to assimilate observational data into the high-resolution model configurations she created for Wallops Flight Facility and the ER.

  15. Hawaiian Volcano Observatory 1969 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  16. Hawaiian Volcano Observatory 1966 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  17. Hawaiian Volcano Observatory 1963 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  18. Hawaiian Volcano Observatory 1970 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  19. Hawaiian Volcano Observatory 1971 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  20. Hawaiian Volcano Observatory 1957 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  1. Hawaiian Volcano Observatory 1965 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  2. Hawaiian Volcano Observatory 1959 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  3. Hawaiian Volcano Observatory 1972 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  4. Hawaiian Volcano Observatory 1967 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  5. Hawaiian Volcano Observatory 1973 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  6. Hawaiian Volcano Observatory 1958 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  7. Hawaiian Volcano Observatory 1961 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  8. Hawaiian Volcano Observatory 1960 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  9. Hawaiian Volcano Observatory 1968 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  10. Hawaiian Volcano Observatory 1964 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  11. Hawaiian Volcano Observatory 1962 Quarterly Administrative Report

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are published separately, due to differing schedules of data reduction. There are eight quarters - from the fourth quarter of 1959 to the third quarter of 1961 - that were never published. Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton (HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

  12. Academic excellence workshops in chemistry and physics

    NASA Astrophysics Data System (ADS)

    Mills, Susan Rose

    In the mid-1970's, Uri Treisman, at the University of California, Berkeley, developed an academic excellence workshop program that had important successes in increasing minority student achievement and persistence in calculus. The present dissertation research is an in-depth study of chemistry and physics workshops at the California State Polytechnic University, Pomona. Data for the first, longitudinal component of this study were obtained by tracking to Spring 1998 all workshop minority students, i.e., Latino, African American, and Native American workshop students, a random sample of non-workshop minority students, and a random sample of non-targeted students, i.e., Anglo and Asian students, enrolled in first-quarter General Chemistry or Physics during specific quarters of 1992 or 1993. Data for the second component were obtained by administering questionnaires, conducting interviews, and observing science students during Fall, 1996. Workshop participation was a significant predictor of first-quarter course grade for minority students in both chemistry and physics, while verbal and mathematics Scholastic Aptitude Test (SAT) scores were not significant predictors of beginning course grade for minority science students. The lack of predictive ability of the SAT and the importance of workshop participation in minority students' beginning science course performance are results with important implications for educators and students. In comparing pre-college achievement measures for workshop and non-targeted students, non-targeted students' mathematics SAT scores were significantly higher than chemistry and physics workshop students' scores. Nonetheless, workshop participation "leveled the field" as workshop and non-targeted students performed similarly in beginning science courses. Positive impacts of workshop participation on achievement, persistence, efficiency, social integration, and self-confidence support the continued and expanded funding of workshop programs

  13. 2. View to northeast showing quarters and outbuildings, L to ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. View to northeast showing quarters and outbuildings, L to R: Service Building (HABS No. VA-1287-D), Medical Officer's Quarters C (in background), Garage (HABS No. VA-1287-F), and Medical Officer's Quarters B - Portsmouth Naval Hospital, Medical Officer's Quarters C, West side Williamson Drive, 400 feet South of Rixey Drive, Portsmouth, Portsmouth, VA

  14. 18 CFR 35.10b - Electric Quarterly Reports.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Electric Quarterly... Application § 35.10b Electric Quarterly Reports. Each public utility shall file an updated Electric Quarterly..., file by January 31. Electric Quarterly Reports must be prepared in conformance with the...

  15. 18 CFR 35.10b - Electric Quarterly Reports.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Electric Quarterly... Application § 35.10b Electric Quarterly Reports. Each public utility shall file an updated Electric Quarterly..., file by January 31. Electric Quarterly Reports must be prepared in conformance with the...

  16. Chemistry Rocks: Redox Chemistry as a Geologic Tool.

    ERIC Educational Resources Information Center

    Burns, Mary Sue

    2001-01-01

    Applies chemistry to earth science, uses rocks in chemistry laboratories, and teaches about transition metal chemistry, oxidation states, and oxidation-reduction reactions from firsthand experiences. (YDS)

  17. Quarter-wave pulse tube

    NASA Astrophysics Data System (ADS)

    Swift, G. W.; Gardner, D. L.; Backhaus, S. N.

    2011-10-01

    In high-power pulse-tube refrigerators, the pulse tube itself can be very long without too much dissipation of acoustic power on its walls. The pressure amplitude, the volume-flow-rate amplitude, and the time phase between them evolve significantly along a pulse tube that is about a quarter-wavelength long. Proper choice of length and area makes the oscillations at the ambient end of the long pulse tube optimal for driving a second, smaller pulse-tube refrigerator, thereby utilizing the acoustic power that would typically have been dissipated in the first pulse-tube refrigerator's orifice. Experiments show that little heat is carried from the ambient heat exchanger to the cold heat exchanger in such a long pulse tube, even though the oscillations are turbulent and even when the tube is compactly coiled.

  18. Writing: the Quarterly as text.

    PubMed

    Locke, Lawrence F

    2005-06-01

    The purpose of this essay is to examine how writing has shaped the nature of the Quarterly over 75 years. Here I explore how stylistic elements have changed over time, how form has interacted with function and content, and how well the resulting text has served the several communities within physical education. I make the following assertions. First, the writing style that has become the model for research reports is needlessly dense and daunting for readers. Second, the desire to maintain a journal that serves both as an interdisciplinary resource for a broad audience of physical educators and as an outlet for reports directed to limited audiences of technical specialists has prevented full performance of either function. Those concerns notwithstanding, I find good cause for celebration--as well as for guarded optimism about the future.

  19. Quarterly technical progress report for the period ending June 30, 1984

    SciTech Connect

    Not Available

    1984-10-01

    The Magnetohydrodynamics Program (Component Development and Integration Facility) in Butte, Montana, continued its site preparation for the TRW first-stage combustor installation. In the area of flue gas cleanup, our in-house research program is continuing its investigation into the causes of sorbent attrition in PETC's fluidized-bed copper oxide process for simultaneous SO/sub 2//NO/sub x/ removal. Interwoven with these tests is a series of spray dryer/electrostatic precipitator tests that are being conducted with the cooperation of Wheelabrator-Frye, Inc. This test series was completed this quarter, and the data show that when using a Kentucky coal, Wheelabrator-Frye's electrostatic precipitator provides excellent particulate control efficiency while using a spray dryer for sulfur dioxide removal. A unique project at Carnegie-Mellon University is looking at the concept of integrated environmental control for coal-fired power plants making use of precombustion, combustion, and postcombustion control, including systems for the simultaneous removal of more than one pollutant. The objective of this research is to develop a computer model and assessment for integrated environmental control systems that utilize conventional or advanced systems. The Liquid Phase Methanol Project Development Unit in LaPorte, Texas, was restarted after a successful shakedown run was completed. PETC has recently begun an in-house research project aimed at exploring the basic chemistry of liquefying coal in the presence of water under supercritical conditions. In the Alternative Fuels Technology Program, the Gulf Research and Development Company has completed the preliminary testing phase of its erosion test loop. Their results indicate that when pumping a coal-water slurry fuel through a flow loop, the erosion rate increases as velocity increases, suggesting a well-defined relationship between these two parameters.

  20. Development of analytical procedures for coprocessing. Quarterly technical progress report, January 1, 1991--March 31, 1991

    SciTech Connect

    Anderson, R.P.

    1991-06-01

    This is the tenth quarterly report under DOE Contract No. DE-AC22-88PC88810, Development of Analytical Procedures for Coprocessing. The overall objective of the contract is to improve understanding of the fundamental chemistry of coprocessing. A primary objective is to evaluate methods to distinguish between compound classes originating from coal versus those originating from petroleum resid while a corollary objective is to provide detailed knowledge on the composition of coprocessing products. This report summarizes work conducted in support of the latter objective in which process development unit samples produced by HRI, Inc. are being subjected to detailed analysis. Coprocessing resid samples selected for detailed analysis were made under constant conditions except for variations in coal concentration or in the coal (New Mexico subbituminous or Texas lignite). The soluble material was separated into strong and weak acids, strong and weak bases, and neutrals. The predominant fraction from the ABN separations was the neutral fraction (67-81%). All of the polar fractions increase with increasing coal concentration. The concentration of saturates in the neutrals is high in a run with 33% subbituminous coal but drops substantially with either increasing coal concentration or the substitution of lignite for subbituminous coal. High temperature gas chromatography showed that both the neutral aromatics fractions and saturates fractions from all of the runs are extremely similar regardless of the coal concentration or coal type. The neutral aromatics fractions were further separated by ring number separation. Chromatograms were again very similar regardless of the initial coal concentration or coal type with most material eluting in the 3-ring to 6-ring region.

  1. Research Advances: Nitric Oxide Synthase Reduces Cr(VI); The Chemistry of Popcorn: It's All About "Pop-Ability"; Nanotubes May Help Heal Broken Bones; New Method Unites Organic Materials and Nanotechnology

    NASA Astrophysics Data System (ADS)

    King, Angela G.

    2005-12-01

    An enzyme can reduce chromium ions and increase toxicity. Chemistry may reduce the number of unpopped kernels. Nanotubes provide scaffolding for bone growth. A new method will aid fabrication of drug-delivery agents.

  2. Strategic Petroleum Reserve: Annual/quarterly report

    SciTech Connect

    Not Available

    1994-02-16

    Section 165 of the Energy Policy and Conservation Act (Public Law 94-163), as amended, requires the Secretary of Energy to submit annual and quarterly reports to the President and the Congress on activities of the Strategic Petroleum Reserve. This report combines the fourth quarter 1993 Quarterly Report with the 1993 Annual Report. Key activities described include appropriations; life extension planning; expansion planning; Strategic Petroleum Reserve oil acquisition; the oil stabilization program; and the refined petroleum product reserve test programs. Sections of this report also describe the program mission; the storage facility development program; environmental compliance; budget and finance; and drawdown and distribution.

  3. Developing enhancement models for first-year chemistry concepts

    NASA Astrophysics Data System (ADS)

    Storer, Donald A.

    2000-10-01

    This dissertation consists of three units, each of which addresses a topic in one of three major categories of chemical education research as required by the Ph.D. program in chemistry with emphasis in chemical education at Miami University. Unit I, Modification of First-Year Chemistry Laboratory Experiences to Implement a Capstone, addresses the category on Development and Testing of Chemistry Courses or Learning Units and demonstrates an approach to implementing a multi-week capstone project as a part of the laboratory curriculum. The work outlined in Unit I demonstrates how this was accomplished in a traditional first-year chemistry setting by modifying the content of traditional first-year chemistry experiments and having the students complete a capstone project that addresses multiple content areas. Unit II, Assessment of a Materials Development Model, addresses the Development and Testing of Chemistry-Based Instructional Materials category. This study determines the effectiveness of a materials development model in producing a publishable quality student monograph and instructor's guide to be used in chemical technology education. The materials development model described in Unit II was used to develop a student monograph (which contains ten laboratory activities) and instructor's guide that could be used in a chemical technology education curriculum. Unit III, Predicting Performance in General Chemistry at Miami University Using ACT and SAT Test Scores, is a project in the category of Research in Student Learning of Chemistry. From a subject pool of 2,764 first-year chemistry students taking General Chemistry at Miami University, Oxford during the fall of the years 1993 and 1994, a sub-sample of 1,023 subjects for which complete data was available was used to develop regression equations based on ACT or SAT scores to predict performance in first-year chemistry.

  4. Groundwater Hydrology and Chemistry in and near an Emulsified Vegetable-Oil Injection Zone, Solid Waste Management Unit 17, Naval Weapons Station Charleston, North Charleston, South Carolina, 2004-2009

    USGS Publications Warehouse

    Vroblesky, Don A.; Petkewich, Matthew D.; Lowery, Mark A.; Conlon, Kevin J.; Casey, Clifton C.

    2010-01-01

    The U.S. Geological Survey and the Naval Facilities Engineering Command Southeast investigated the hydrology and groundwater chemistry in the vicinity of an emulsified vegetable-oil injection zone at Solid Waste Management Unit (SWMU) 17, Naval Weapons Station Charleston, North Charleston, South Carolina. In May 2004, Solutions-IES initiated a Phase-I pilot-scale treatability study at SWMU17 involving the injection of an edible oil emulsion into the aquifer near wells 17PS-01, 17PS-02, and 17PS-03 to treat chlorinated solvents. The Phase-I injection of emulsified vegetable oil resulted in dechlorination of trichloroethene (TCE) to cis-1,2-dichloroethene (cDCE), but the dechlorination activity appeared to stall at cDCE, with little further dechlorination of cDCE to vinyl chloride (VC) or to ethene. The purpose of the present investigation was to examine the groundwater hydrology and chemistry in and near the injection zone to gain a better understanding of the apparent remediation stall. It is unlikely that the remediation stall was due to the lack of an appropriate microbial community because groundwater samples showed the presence of Dehalococcoides species (sp.) and suitable enyzmes. The probable causes of the stall were heterogeneous distribution of the injectate and development of low-pH conditions in the injection area. Because groundwater pH values in the injection area were below the range considered optimum for dechlorination activity, a series of tests was done to examine the effect on dechlorination of increasing the pH within well 17PS-02. During and following the in-well pH-adjustment tests, VC concentrations gradually increased in some wells in the injection zone that were not part of the in-well pH-adjustment tests. These data possibly reflect a gradual microbial acclimation to the low-pH conditions produced by the injection. In contrast, a distinct increase in VC concentration was observed in well 17PS-02 following the in-well pH increase. Adjustment

  5. Interior view of northeast unit master bedroom, looking into sleeping ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Interior view of northeast unit master bedroom, looking into sleeping porch, facing northeast - MacDill Air Force Base, Double Non-Commissioned Officers' Quarters, 7418 Hanger Loop Drive, Tampa, Hillsborough County, FL

  6. Bedroom in southwest corner of south unit Fitzsimons General ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Bedroom in southwest corner of south unit - Fitzsimons General Hospital, Civilian Employees' Quarters, North Hickey Street, West side, 150 feet North of intersection of North Hickey Street & West Loosley Avenue, Aurora, Adams County, CO

  7. Living room toward front door of south unit Fitzsimons ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Living room toward front door of south unit - Fitzsimons General Hospital, Civilian Employees' Quarters, North Hickey Street, West side, 150 feet North of intersection of North Hickey Street & West Loosley Avenue, Aurora, Adams County, CO

  8. Constitutional dynamic chemistry: bridge from supramolecular chemistry to adaptive chemistry.

    PubMed

    Lehn, Jean-Marie

    2012-01-01

    Supramolecular chemistry aims at implementing highly complex chemical systems from molecular components held together by non-covalent intermolecular forces and effecting molecular recognition, catalysis and transport processes. A further step consists in the investigation of chemical systems undergoing self-organization, i.e. systems capable of spontaneously generating well-defined functional supramolecular architectures by self-assembly from their components, thus behaving as programmed chemical systems. Supramolecular chemistry is intrinsically a dynamic chemistry in view of the lability of the interactions connecting the molecular components of a supramolecular entity and the resulting ability of supramolecular species to exchange their constituents. The same holds for molecular chemistry when the molecular entity contains covalent bonds that may form and break reversibility, so as to allow a continuous change in constitution by reorganization and exchange of building blocks. These features define a Constitutional Dynamic Chemistry (CDC) on both the molecular and supramolecular levels.CDC introduces a paradigm shift with respect to constitutionally static chemistry. The latter relies on design for the generation of a target entity, whereas CDC takes advantage of dynamic diversity to allow variation and selection. The implementation of selection in chemistry introduces a fundamental change in outlook. Whereas self-organization by design strives to achieve full control over the output molecular or supramolecular entity by explicit programming, self-organization with selection operates on dynamic constitutional diversity in response to either internal or external factors to achieve adaptation.The merging of the features: -information and programmability, -dynamics and reversibility, -constitution and structural diversity, points to the emergence of adaptive and evolutive chemistry, towards a chemistry of complex matter.

  9. Sanitary Landfill Groundwater Monitoring Report. Fourth Quarter 1997 and 1997 Summary

    SciTech Connect

    Chase, J.

    1998-02-01

    A maximum of forty-eight wells of the LFW series monitor groundwater quality in the Steed Pond Aquifer (Water Table) beneath the Sanitary Landfill at the Savannah River Site (SRS). These wells are sampled quarterly to comply with the South Carolina Department of Health and Environmental Control Domestic Water Permit DWP-087A and as part of the SRS Groundwater Monitoring Program. Chloroethene (vinyl chloride) and trichloroethylene were the most widespread constituents exceeding standards during 1997. Lead (total recoverable), 1,4-dichlorobenzene, mercury, benzene, dichloromethane (methylene chloride), a common laboratory contaminant, tetrachloroethylene, 1,2-dichloroethane, gross alpha, tritium, and 1.2-dichloropropane also exceeded standards in one or more wells. The groundwater flow direction in the Steed Pond Aquifer (Water Table) beneath the Sanitary Landfill was to the southeast (universal transverse Mercator coordinates). The flow rate in this unit was approximately 139 ft/year during first quarter 1997 and 132 ft/year during fourth quarter.

  10. A Historical Review of "Business Communication Quarterly."

    ERIC Educational Resources Information Center

    Lewis, Stephen D.

    2001-01-01

    Presents a brief history of the "Business Communication Quarterly" and its predecessors from 1936-2000. Investigates trends in topic coverage, and lists the journal's editors and most prolific authors. (SR)

  11. 14 CFR 93.325 - Quarterly reporting.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Special Flight Rules in the Vicinity of Grand Canyon National Park, AZ § 93.325 Quarterly reporting. (a) Each certificate holder must submit in...

  12. 14 CFR 93.325 - Quarterly reporting.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Special Flight Rules in the Vicinity of Grand Canyon National Park, AZ § 93.325 Quarterly reporting. (a) Each certificate holder must submit in...

  13. 14 CFR 93.325 - Quarterly reporting.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Special Flight Rules in the Vicinity of Grand Canyon National Park, AZ § 93.325 Quarterly reporting. (a) Each certificate holder must submit in...

  14. Special Report: Brain Chemistry.

    ERIC Educational Resources Information Center

    Krassner, Michael B.

    1983-01-01

    Chemical actions in the brain result in cognitive, emotional, neuroendocrine, neuromuscular, and/or neurocirculatory effects. Developments in understanding brain chemistry are discussed, considering among others, neurotransmitter chemistry, neuropeptides, drugs and the brain, antidepressants, and actions of minor tranquilizers. (JN)

  15. Organometallic Chemistry of Molybdenum.

    ERIC Educational Resources Information Center

    Lucas, C. Robert; Walsh, Kelly A.

    1987-01-01

    Suggests ways to avoid some of the problems students have learning the principles of organometallic chemistry. Provides a description of an experiment used in a third-year college chemistry laboratory on molybdenum. (TW)

  16. Chemistry for Potters.

    ERIC Educational Resources Information Center

    Denio, Allen A.

    1980-01-01

    Relates pottery making to chemistry by providing chemical information about clay, its origin, composition, properties, and changes that occur during firing; also describes glaze compositions, examples of redox chemistry, salt glazing, crystalline glazes, and problems in toxicity. (CS)

  17. Environmental chemistry: Volume A

    SciTech Connect

    Yen, T.F.

    1999-08-01

    This is an extensive introduction to environmental chemistry for engineering and chemical professionals. The contents of Volume A include a brief review of basic chemistry prior to coverage of litho, atmo, hydro, pedo, and biospheres.

  18. AGEX II: Technical quarterly, Volume 2

    SciTech Connect

    Ekdahl, C.

    1995-03-01

    The AGEX II Technical Quarterly publishes short technical contributions on above ground experiments that use pulsed power and laser drivers. The Quarterly is intended to provide rapid exposure of timely technical ideas and results as well as a means for documenting AGEX II progress and scientific quality for the AGEX II community. Suitable topics include experimental results, diagnostic apparatus, theoretical design, and scaling, among others.

  19. The Future of Ocean Chemistry

    NASA Astrophysics Data System (ADS)

    Zeebe, R. E.

    2008-12-01

    The oceans have absorbed about 40% of the carbon dioxide emitted by humans over the past two centuries. This equates to nearly 500 billion metric tons of carbon dioxide, equivalent in weight to about 28 inches of water (ca. 70 cm) across the whole State of Texas. As a result, surface ocean pH has already dropped by 0.1 units relative to preindustrial levels and is expected to drop by 0.3 units until year 2100 under business as USual scenarios. This acidification process is expected to have detrimental consequences for a variety of marine organisms. I will present projections of ocean chemistry changes for various CO2 emission scenarios and discuss changes in parameters relevant to marine organisms such as pH and calcium carbonate saturation state. If alterations of ocean chemistry beyond certain threshold values are to be avoided in the future, specific CO2 emission targets will be required. I will suggest values for those emission targets based on results from carbon cycle modeling efforts. I will also address if enhanced weathering of carbonate and silicate rocks in a warmer climate will have the ability to mitigate impacts of anthropogenic CO2 emissions on ocean chemistry. Finally, I will call attention to a surprising and hitherto largely unknown consequence of ocean acidification.

  20. Chemistry as General Education

    ERIC Educational Resources Information Center

    Tro, Nivaldo J.

    2004-01-01

    The efficacy of different science and chemistry courses for science-major and non-major students, and the question of chemistry's contribution to general education are evaluated. Chemistry and science curriculum are too profession- and consumer-oriented, and to overcome this problem, it is advised that all disciplines must incorporate the major…

  1. Environmental Chemistry Activities.

    ERIC Educational Resources Information Center

    Jackland, Thomas; And Others

    The authors of this curriculum supplement believe in a laboratory approach to chemistry and express the feeling that environmental chemistry provides the students an opportunity to apply theoretical chemistry to important practical problems. There are eighteen activities presented, each accompanied with behavioral objectives, one or more suggested…

  2. Chemistry on Stamps.

    ERIC Educational Resources Information Center

    Schreck, James O.

    1986-01-01

    Suggests how postage stamps can be incorporated into chemistry teaching. Categories considered include emergence of chemistry as a science, metric system, atoms (and molecules and ions), stoichiometry, energy relationships in chemical systems, chemical bonding, nuclear chemistry, biochemistry, geochemistry, matter (gases, liquids, and solids),…

  3. Green Chemistry and Education.

    ERIC Educational Resources Information Center

    Hjeresen, Dennis L.; Schutt, David L.; Boese, Janet M.

    2000-01-01

    Many students today are profoundly interested in the sustainability of their world. Introduces Green Chemistry and its principles with teaching materials. Green Chemistry is the use of chemistry for pollution prevention and the design of chemical products and processes that are environmentally benign. (ASK)

  4. Mechanisms in Photographic Chemistry

    ERIC Educational Resources Information Center

    Sahyun, M. R. V.

    1974-01-01

    Reviews current research interests in photographic chemistry, involving two proposed models for spectral sensitization of crystal defects and impurities in the photolysis reactivity and the mechanisms of development and complexation. Establishment of photographic chemistry in a chemistry curriculum is recommended. (CC)

  5. School Chemistry vs. Chemistry in Research: An Exploratory Experiment.

    ERIC Educational Resources Information Center

    Habraken, Clarisse L.; Buijs, Wim; Borkent, Hens; Ligeon, Willy; Wender, Harry; Meijer, Marijn

    2001-01-01

    Reports on a study exploring why students are not studying chemistry. Three groups of graduating high school students and their chemistry teachers stayed at a research institute working on molecular modeling and wrote essays on school chemistry versus chemistry in research. Concludes that school chemistry does not convey today's chemistry in…

  6. 29 CFR 548.306 - Average earnings for year or quarter year preceding the current quarter.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Average earnings for year or quarter year preceding the... PAY Interpretations Authorized Basic Rates § 548.306 Average earnings for year or quarter year... hour for each workweek equal to the average hourly remuneration of the employee for employment...

  7. 29 CFR 548.306 - Average earnings for year or quarter year preceding the current quarter.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Average earnings for year or quarter year preceding the current quarter. 548.306 Section 548.306 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS AUTHORIZATION OF ESTABLISHED BASIC RATES FOR COMPUTING OVERTIME PAY Interpretations Authorized Basic Rates...

  8. Calorimetry exchange program. Quarterly data report, 2nd quarter 1992

    SciTech Connect

    Barnett, T.M.

    1996-07-01

    The goals of the Calorimetry Sample Exchange Program are: (1) Discuss measurement differences, (2) Review and improve analytical measurements and methods, (3) Discuss new measurement capabilities, (4) Provide data to DOE on measurement capabilities to evaluate shipper-receiver differences, (5) Provide characterized or standard materials as necessary for exchange participants, (6) Provide a measurement control program for plutonium analysis. A sample of PuO{sub 2} powder is available at each participating site for NDA measurement, including either or both calorimetry and high-resolution gamma-ray spectroscopy, the elements which are typically combined to provide a calorimetric assay of plutonium. The facilities measure the sample as frequently and to the level of precision which they desire, and then submit the data to the Exchange for analysis. Statistical tests are used to evaluate the data and to determine if there are significant differences from accepted values for the exchange sample or from data previously reported by that facility. This information is presented, in the form of a quarterly report, intended for use by Exchange participants in measurement control programs, or to indicate when bias corrections may be appropriate. No, attempt, however, has been made to standardize methods or frequency of data collection, calibration, or operating procedures. Direct comparisons between laboratories may, therefore, be misleading since data have not been collected to the same precision or for the same time periods. A meeting of the participants of the Calorimetry Exchange is held annually at EG&G Mound Applied Technologies. The purposes of this meeting are to discuss measurement differences, problems, and new measurement capabilities, and to determine the additional activities needed to fulfill the goals of the Exchange.

  9. Calorimetry exchange program. Quarterly data report, 1st quarter 1992

    SciTech Connect

    Barnett, T.M.

    1996-07-01

    The goals of the Calorimetry Sample Exchange Program are: (1) Discuss measurement differences, (2) Review and improve analytical measurements and methods, (3) Discuss new measurement capabilities, (4) Provide data to DOE on measurement capabilities to evaluate shipper-receiver differences, (5) Provide characterized or standard materials as necessary for exchange participants, (6) Provide a measurement control program for plutonium analysis. A sample of PuO{sub 2} powder is available at each participating site for NDA measurement, including either or both calorimetry and high-resolution gamma-ray spectroscopy, the elements which are typically combined to provide a calorimetric assay of plutonium. The facilities measure the sample as frequently and to the level of precision which they desire, and then submit the data to the Exchange for analysis. Statistical tests are used to evaluate the data and to determine if there are significant differences from accepted values for the exchange sample or from data previously reported by that facility. This information is presented, in the form of a quarterly report, intended for use by Exchange participants in measurement control programs, or to indicate when bias corrections may be appropriate. No attempt, however, has been made to standardize methods or frequency of data collection, calibration, or operating procedures. Direct comparisons between laboratories may, therefore, be misleading since data have not been collected to the same precision or for the same time periods. A meeting of the participants of the Calorimetry Exchange is held annually at EG&G Mound Applied Technologies. The purposes of this meeting are to discuss measurement differences, problems, and new measurement capabilities, and to determine the additional activities needed to fulfill the goals of the Exchange.

  10. Snowpack and precipitation chemistry at high altitudes

    NASA Astrophysics Data System (ADS)

    Hidy, George M.

    As an observational scientist, James P. Lodge Jr. contributed to the knowledge of atmospheric chemistry significantly and in many ways. As far back as the 1960s, his achievements included organization and oversight of a national survey of precipitation chemistry. This paper recognizes his broad interest in precipitation, focusing on recent studies of snow chemistry in the high-elevation regimes. A brief overview of snow chemistry in the American Rocky Mountains is provided in the context of other snow chemistry studies in the United States, Europe, the Himalayas, and the polar ice-sheets. A comparison of major ion concentrations in snow and neighboring NADP wet deposition sites in the Rocky Mountains follows. These data are then put in perspective of the major ion concentrations observed in snow at different global locations. This comparison touches on the similarities and differences in ion concentrations in the mid-latitude sites and the Polar Regions. A case study is reviewed to identify specific sources of sulfur and nitrogen oxides affecting snow chemistry in the American Rockies. The survey closes with a brief discussion of potentially important recent observations of snowpack chemistry interactions with the troposphere, the hydrosphere and the lithosphere.

  11. The Chemistry of Perfume: A Laboratory Course for Nonscience Majors

    ERIC Educational Resources Information Center

    Logan, Jennifer L.; Rumbaugh, Craig E.

    2012-01-01

    "The Chemistry of Perfume" is a lab-only course for nonscience majors. Students learn fundamental concepts of chemistry through the context of fragrance, a pervasive aspect of daily life. The course consists of laboratories pertaining to five units: introduction, extraction, synthesis, characterization, and application. The introduction unit…

  12. Applied Meteorology Unit (AMU)

    NASA Technical Reports Server (NTRS)

    Bauman, William H., Jr.; Crawford, Winifred; Short, David; Barrett, Joe; Watson, Leela

    2008-01-01

    This report summarizes the Applied Meteorology Unit (AMU) activities for the second quarter of Fiscal Year 2008 (January - March 2008). Projects described are: (1) Peak Wind Tool for User Launch Commit Criteria (LCC), (2) Peak Wind Tool for General Forecasting, (3) Situational Lightning Climatologies for Central Florida. Phase III, (4) Volume Averaged Height Integrated Radar Reflectivity (VAHIRR), (5) Impact of Local Sensors, (6) Radar Scan Strategies for the PAFB WSR-74C Replacement and (7) WRF Wind Sensitivity Study at Edwards Air Force Base.

  13. Applied Meteorology Unit (AMU)

    NASA Technical Reports Server (NTRS)

    Bauman, William; Crawford, Winifred; Barrett, Joe; Watson, Leela; Wheeler, Mark

    2010-01-01

    This report summarizes the Applied Meteorology Unit (AMU) activities for the first quarter of Fiscal Year 2010 (October - December 2009). A detailed project schedule is included in the Appendix. Included tasks are: (1) Peak Wind Tool for User Launch Commit Criteria (LCC), (2) Objective Lightning Probability Tool, Phase III, (3) Peak Wind Tool for General Forecasting, Phase II, (4) Upgrade Summer Severe Weather Tool in Meteorological Interactive Data Display System (MIDDS), (5) Advanced Regional Prediction System (ARPS) Data Analysis System (ADAS) Update and Maintainability, (5) Verify 12-km resolution North American Model (MesoNAM) Performance, and (5) Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) Graphical User Interface.

  14. Progress in Kdo-glycoside chemistry

    PubMed Central

    Kosma, Paul

    2016-01-01

    Glycosylation chemistry of 3-deoxy-D-manno-oct-2-ulosonic acid units has been considerably developed within the last decade. This review covers major achievements with respect to improved yields and anomeric selectivity as well as suppression of the elimination side reaction via selection of dedicated protecting groups and appropriate activation of the anomeric center. PMID:27274586

  15. The colloidal chemistry of ceramic clays

    NASA Technical Reports Server (NTRS)

    Phelps, G. W.

    1984-01-01

    The colloidal chemistry and mineralogy of two argil minerals were studied. Deposits of kaolin and of ceramic clays in the United States and England are discussed for the probable mechanism of formation. The structural modifications of the bed, original material associated with the clays and the proper use of flocculants are discussed.

  16. Chemistry by the Case: Integrated Case Teaching and Team Learning.

    ERIC Educational Resources Information Center

    Dinan, Frank J.

    2002-01-01

    Introduces a chemistry unit, the "Evolving Atom", based on a problem-based learning approach designed for non-science majors. Uses the case method to address memory loss in mice during instruction. (Contains 14 references.) (YDS)

  17. Contextual view of Quarters 1 and 2, with landscape elements ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Contextual view of Quarters 1 and 2, with landscape elements visible, camera facing southwest - Naval Training Station, Senior Officers' Quarters District, Naval Station Treasure Island, Yerba Buena Island, San Francisco, San Francisco County, CA

  18. ARM Operations Quarterly Report October 1-December 31, 2013

    SciTech Connect

    Voyles, Jimmy W.

    2013-12-31

    The U.S. Department of Energy requires national user facilities to report time-based operating data. This quarterly report is written to comply with this requirement. This reports on the first quarter facility statistics.

  19. STIRLING'S QUARTERS SMALL BARN: FIRST FLOOR PLAN; SECOND FLOOR PLAN; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    STIRLING'S QUARTERS SMALL BARN: FIRST FLOOR PLAN; SECOND FLOOR PLAN; SOUTH ELEVATION; EAST ELEVATION; NORTH ELEVATION; WEST ELEVATION. - Stirling's Quarters, 555 Yellow Springs Road, Tredyffrin Township, Valley Forge, Chester County, PA

  20. Contextual photograph of quarters no. 2 and tower, looking southeasterly ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Contextual photograph of quarters no. 2 and tower, looking southeasterly from entrance road. - Sacramento National Wildlife Refuge, Headquarters Complex, Quarters No. 2, 752 County Road 99W, Willows, Glenn County, CA

  1. Contextual view of district with Quarters 1, 2, and 3 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Contextual view of district with Quarters 1, 2, and 3 in view, as well as Whiting Way, camera facing southwest - Naval Training Station, Senior Officers' Quarters District, Naval Station Treasure Island, Yerba Buena Island, San Francisco, San Francisco County, CA

  2. 2. EAST SIDE OF SLAVE QUARTERS (Jack E. Boucher, photgrapher, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. EAST SIDE OF SLAVE QUARTERS (Jack E. Boucher, photgrapher, April/May, 1986) - Felix & Odile Pratt Valle Slave Quarters, Southeast corner of Merchant & Second Streets, Sainte Genevieve, Ste. Genevieve County, MO

  3. Idaho National Laboratory Quarterly Performance Analysis

    SciTech Connect

    Lisbeth Mitchell

    2014-11-01

    This report is published quarterly by the Idaho National Laboratory (INL) Quality and Performance Management Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of 60 reportable events (23 from the 4th Qtr FY14 and 37 from the prior three reporting quarters) as well as 58 other issue reports (including not reportable events and Significant Category A and B conditions) identified at INL from July 2013 through October 2014. Battelle Energy Alliance (BEA) operates the INL under contract DE AC07 051D14517.

  4. Connecting Algebra and Chemistry.

    ERIC Educational Resources Information Center

    O'Connor, Sean

    2003-01-01

    Correlates high school chemistry curriculum with high school algebra curriculum and makes the case for an integrated approach to mathematics and science instruction. Focuses on process integration. (DDR)

  5. Science Update: Analytical Chemistry.

    ERIC Educational Resources Information Center

    Worthy, Ward

    1980-01-01

    Briefly discusses new instrumentation in the field of analytical chemistry. Advances in liquid chromatography, photoacoustic spectroscopy, the use of lasers, and mass spectrometry are also discussed. (CS)

  6. Hawaiian Volcano Observatory 1956 Quarterly Administrative Reports

    USGS Publications Warehouse

    Nakata, Jennifer S.

    2007-01-01

    The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to the present are now available as .pdf files at http://www.usgs.gov/pubprod. This report consists of four parts.

  7. The selective catalytic cracking of Fischer-Tropsch liquids to high value transportation fuels. Quarterly technical progress report No. 5, first quarter fiscal year 1993, October 1, 1992--December 31, 1992

    SciTech Connect

    Reagan, W.J.

    1995-01-01

    Amoco Oil Company, under a contract with the United States Department of Energy, is investigating a selective catalytic cracking process to convert the Fischer-Tropsch gasoline and wax fractions to high value transportation fuels. This report describes the work in the first quarter, fiscal year, 1993.

  8. South elevation of Superintendent's Quarters, built as a combination staff ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    South elevation of Superintendent's Quarters, built as a combination staff living quarters/office and a visitor reception room by the War Department in 1923-24. Note exterior door to Gold Star Mothers' reception room on right. - Flanders Field American Cemetery & Memorial, Superintendent's Quarters, Wortegemseweg 117, Waregem, West Flanders (Belgium)

  9. 46 CFR 72.25-10 - Location of passenger quarters.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 3 2014-10-01 2014-10-01 false Location of passenger quarters. 72.25-10 Section 72.25-10 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PASSENGER VESSELS CONSTRUCTION AND ARRANGEMENT Passenger Accommodations § 72.25-10 Location of passenger quarters. (a) The deck forming the deckhead of passenger quarters...

  10. 46 CFR 72.25-10 - Location of passenger quarters.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 3 2012-10-01 2012-10-01 false Location of passenger quarters. 72.25-10 Section 72.25-10 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PASSENGER VESSELS CONSTRUCTION AND ARRANGEMENT Passenger Accommodations § 72.25-10 Location of passenger quarters. (a) The deck forming the deckhead of passenger quarters...

  11. Natural gas imports and exports. Second quarter report

    SciTech Connect

    1997-12-31

    The Office of Natural Gas and Petroleum Import and Export Activities prepares quarterly reports summarizing the data provided by companies authorized to import or export natural gas. Companies are required, as a condition of their authorizations, to file quarterly reports. This report is for the second quarter of 1997 (April through June).

  12. 19 CFR 159.34 - Certified quarterly rate.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... TREASURY (CONTINUED) LIQUIDATION OF DUTIES Conversion of Foreign Currency § 159.34 Certified quarterly rate. (a) Countries for which quarterly rate is certified. For the currency of each of the following... York for such foreign currency for a day in that quarter: Australia, Austria, Belgium, Brazil,...

  13. 12 CFR 620.10 - Preparing the quarterly report.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Preparing the quarterly report. 620.10 Section 620.10 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM DISCLOSURE TO SHAREHOLDERS Quarterly Report § 620.10 Preparing the quarterly report. (a) Each institution of the Farm Credit...

  14. Atmospheric Chemistry Over Southern Africa

    NASA Technical Reports Server (NTRS)

    Gatebe, Charles K.; Levy, Robert C.; Thompson, Anne M.

    2011-01-01

    During the southern African dry season, regional haze from mixed industrial pollution, biomass burning aerosol and gases from domestic and grassland fires, and biogenic sources from plants and soils is worsened by a semi-permanent atmosphere gyre over the subcontinent. These factors were a driver of several major international field campaigns in the 1990s and early 2000s, and attracted many scientists to the region. Some researchers were interested in understanding fundamental processes governing chemistry of the atmosphere and interaction with climate change. Others found favorable conditions for evaluating satellite-derived measurements of atmospheric properties and a changing land surface. With that background in mind a workshop on atmospheric chemistry was held in South Africa. Sponsored by the International Commission for Atmospheric Chemistry and Global Pollution (ICACGP; http://www.icacgp.org/), the workshop received generous support from the South African power utility, Eskom, and the Climatology Research Group of the University of the Witwatersrand, Johannesburg, South Africa. The purpose of the workshop was to review some earlier findings as well as more recent findings on southern African climate vulnerability, chemical changes due to urbanization, land-use modification, and how these factors interact. Originally proposed by John Burrows, president of ICACGP, the workshop was the first ICACGP regional workshop to study the interaction of air pollution with global chemical and climate change. Organized locally by the University of the Witwatersrand, the workshop attracted more than 60 delegates from South Africa, Mozambique, Botswana, Zimbabwe, France, Germany, Canada, and the United States. More than 30 presentations were given, exploring both retrospective and prospective aspects of the science. In several talks, attention was focused on southern African chemistry, atmospheric pollution monitoring, and climate processes as they were studied in the field

  15. Science Unit Plans. PACE '94.

    ERIC Educational Resources Information Center

    Schoon, Kenneth J., Ed.; Wiles, Clyde A., Ed.

    This booklet contains mathematics unit plans for Biology, Chemistry, and Physical Science developed by PACE (Promoting Academic Excellence In Mathematics, Science & Technology for Workers of the 21st Century). Each unit plan contains suggested timing, objectives, skills to be acquired, workplace relationships, learning activities with suggested…

  16. Assessing High School Chemistry Students' Modeling Sub-Skills in a Computerized Molecular Modeling Learning Environment

    ERIC Educational Resources Information Center

    Dori, Yehudit Judy; Kaberman, Zvia

    2012-01-01

    Much knowledge in chemistry exists at a molecular level, inaccessible to direct perception. Chemistry instruction should therefore include multiple visual representations, such as molecular models and symbols. This study describes the implementation and assessment of a learning unit designed for 12th grade chemistry honors students. The organic…

  17. Students' Learning with the Connected Chemistry (CC1) Curriculum: Navigating the Complexities of the Particulate World

    ERIC Educational Resources Information Center

    Levy, Sharona T.; Wilensky, Uri

    2009-01-01

    The focus of this study is students' learning with a Connected Chemistry unit, CC1 (denotes Connected Chemistry, chapter 1), a computer-based environment for learning the topics of gas laws and kinetic molecular theory in chemistry (Levy and Wilensky 2009). An investigation was conducted into high-school students' learning with Connected…

  18. Examining and Characterizing Changes in First Year High School Chemistry Curricula

    ERIC Educational Resources Information Center

    Holley, Kerry Kathleen McGee

    2010-01-01

    Many students currently entering college are able to solve mathematical problems but often do not understand the chemistry concepts underlying their calculations. High school chemistry teachers from Texas and the United States (US) were surveyed as to what topics they teach in their chemistry classes. A subset of Texas teachers was also…

  19. The Role of Water Chemistry in Marine Aquarium Design: A Model System for a General Chemistry Class

    NASA Astrophysics Data System (ADS)

    Keaffaber, Jeffrey J.; Palma, Ramiro; Williams, Kathryn R.

    2008-02-01

    Water chemistry is central to aquarium design, and it provides many potential applications for discussion in undergraduate chemistry and engineering courses. Marine aquaria and their life support systems feature many chemical processes. A life support system consists of the entire recirculation system, as well as the habitat tank and all ancillary water treatment processes. Many fundamental concepts learned in general chemistry, for example, unit conversion, solution concentrations, stoichiometry, redox reactions, and acid-base chemistry are all key to understanding the life support system. This article uses a hypothetical tank to house ocean sunfish as a model to show students the calculations and other considerations that are needed when designing a marine aquarium.

  20. Recession becomes major force to tighten grip on quarterly gas pipeline building costs

    SciTech Connect

    Morgan, J.M.

    1983-04-25

    This article points out that the major force affecting gas pipeline building costs, during the second quarter of 1982, was the recession. The total composite cost index for building gas pipelines increased by only 1.01%. Material prices for steel line pipe, valves, fittings, and line pipe coating showed little or no gain during the period. Installation labor costs continued to climb. Discusses construction activity, compressor equipment and drive units, and high pressure gas station piping.

  1. Naturally fractured tight gas reservoir detection optimization. Quarterly report, July 1, 1996--September 30, 1996

    SciTech Connect

    1998-12-31

    This document contains the status report for the Naturally Fractured Tight Gas-Gas Reservoir Detection Optimization project for the contract period July 1 to September 30, 1996. Data from seismic surveys are analyzed for structural imaging of reflector units as part of a 3-D basin modeling effort. The main activities of this quarter were 3-D, 3-C processing, correlation matrix, and paraxial ray-tracing modeling.

  2. NRC TLD Direct Radiation Monitoring Network. Volume 15, No. 4: Quarterly progress report, October--December 1995

    SciTech Connect

    Struckmeyer, R.

    1996-03-01

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1995. It provides the ambient radiation levels measured in the vicinity of 75 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program.

  3. Development of BEACON technology. Quarterly report, April-June 1982

    SciTech Connect

    Not Available

    1983-03-01

    The BEACON process involves the catalytic deposition of a highly reactive form of carbon from a gas stream which contains carbon monoxide. The carbon-depleted gas is combusted with air to produce power, and the carbon is reacted with steam to produce methane or hydrogen. Experiments were continued this quarter with the objective of improving the carbon deposition efficiency using a Paraho retort off-gas mixture. Analysis has shown that the use of the Paraho off-gas to make hydrogen would be attractive if the ratio of the heat content of the feedgas to the heat content of the hydrogen produced is less than 3. Experimental conditions to achieve this ratio have been established. Recent work had shown that the volume of a BEACON supported catalyst bed increased with an increase in carbon loading level. Four series of experiments were performed where sieve analyses were made after one or more BEACON process cycles. These tests showed that the volume expansion is due to an increase in the number and size of the larger catalyst particles. The bench-scale testing of unsupported catalysts concentrated in two areas: (a) the completion of batch testing in the 4-inch reactor, and (b) the construction of the Tandem Reactor Unit which will permit the transfer of solids between the carbon deposition and steam gasification reactors during testing. It was found that a second stage of steaming enhanced the methane yield. Approximately 80% of the construction and instrumentation of the Tandem Reactor Unit was completed during the quarter. A conceptual design was completed for an Integrated Test Facility (ITF) which would permit research on the BEACON process at a scale sufficient for scale-up. 17 figures, 14 tables.

  4. Magic, science and masculinity: marketing toy chemistry sets.

    PubMed

    Al-Gailani, Salim

    2009-12-01

    At least since the late nineteenth century, toy chemistry sets have featured in standard scripts of the achievement of eminence in science, and they remain important in constructions of scientific identity. Using a selection of these toys manufactured in Britain and the United States, and with particular reference to the two dominant American brands, Gilbert and Chemcraft, this paper suggests that early twentieth-century chemistry sets were rooted in overlapping Victorian traditions of entertainment magic and scientific recreations. As chemistry set marketing copy gradually reoriented towards emphasising scientific modernity, citizenship, discipline and educational value, pre-twentieth-century traditions were subsumed within domestic-and specifically masculine-tropes. These developments in branding strategies point to transformations in both users' engagement with their chemistry sets and the role of scientific toys in domestic play. The chemistry set serves here as a useful tool for measuring cultural change and lay engagement with chemistry. PMID:20481190

  5. Opportunities in Chemistry.

    ERIC Educational Resources Information Center

    National Academy of Sciences - National Research Council, Washington, DC.

    Because of the changes occurring in the chemical sciences, a new survey of chemistry and its intellectual and economic impact was clearly needed. This report presents a current assessment of the status of chemistry and of the future opportunities in the field. This analysis contains: (1) an introductory chapter (establishing the need for the…

  6. Coupled Phenomena in Chemistry.

    ERIC Educational Resources Information Center

    Matsubara, Akira; Nomura, Kazuo

    1979-01-01

    Various phenomena in chemistry and biology can be understood through Gibbs energy utilization. Some common phenomena in chemistry are explained including neutralization, hydrolysis, oxidation and reaction, simultaneous dissociation equilibrium of two weak acids, and common ion effect on solubility. (Author/SA)

  7. Undergraduate Chemistry Laboratory

    ERIC Educational Resources Information Center

    Bretz, Stacey Lowery; Fay, Michael; Bruck, Laura B.; Towns, Marcy H.

    2013-01-01

    Forty chemistry faculty from American Chemical Society-approved departments were interviewed to determine their goals for undergraduate chemistry laboratory. Faculty were stratified by type of institution, departmental success with regard to National Science Foundation funding for laboratory reform, and level of laboratory course. Interview…

  8. Brushing Up on Chemistry.

    ERIC Educational Resources Information Center

    Trantow, Ashley

    2002-01-01

    Presents an activity designed for use during National Chemistry Week 2002 with the theme "Chemistry Keeps Us Clean". Allows students to discover more about a cleaning product they use everyday. Students make their own toothpaste and compare its properties with those of commercial toothpaste. (MM)

  9. Minicourses in Chemistry

    ERIC Educational Resources Information Center

    Lygre, D. G.; And Others

    1975-01-01

    Describes nine minicourses in chemistry designed to acquaint the non-science major with practical applications of chemistry in everyday experiences. Each course consists of daily classes for two weeks for one credit and is offered on a credit/no credit basis. (MLH)

  10. Chemistry of Moth Repellents

    ERIC Educational Resources Information Center

    Pinto, Gabriel

    2005-01-01

    An effective way to teach chemistry is to examine the substances used in daily life from a pedagogical viewpoint, from the overlap of science, technology, and society (STS). A study aims to engage students in the topic of moth repellents and to encourage them to investigate the chemistry in this familiar product using a set of questions.

  11. Chemistry and Biology

    ERIC Educational Resources Information Center

    Wigston, David L.

    1970-01-01

    Discusses the relationship between chemisty and biology in the science curriculum. Points out the differences in perception of the disciplines, which the physical scientists favoring reductionism. Suggests that biology departments offer a special course for chemistry students, just as the chemistry departments have done for biology students.…

  12. Chemistry from Issues.

    ERIC Educational Resources Information Center

    Harding, Jan; Donaldson, Jim

    1986-01-01

    Describes the "Chemistry from Issues" project at Chelsea College. Provides the background information, rationale, and overall structure of a proposed course about the importance of chemistry to common culture. Outlines one module about the British steel industry that has been taught at King's College. (TW)

  13. Chemistry in Microfluidic Channels

    ERIC Educational Resources Information Center

    Chia, Matthew C.; Sweeney, Christina M.; Odom, Teri W.

    2011-01-01

    General chemistry introduces principles such as acid-base chemistry, mixing, and precipitation that are usually demonstrated in bulk solutions. In this laboratory experiment, we describe how chemical reactions can be performed in a microfluidic channel to show advanced concepts such as laminar fluid flow and controlled precipitation. Three sets of…

  14. Stratospheric chemistry and transport

    NASA Technical Reports Server (NTRS)

    Prather, Michael; Garcia, Maria M.

    1990-01-01

    A Chemical Tracer Model (CTM) that can use wind field data generated by the General Circulation Model (GCM) is developed to implement chemistry in the three dimensional GCM of the middle atmosphere. Initially, chemical tracers with simple first order losses such as N2O are used. Successive models are to incorporate more complex ozone chemistry.

  15. Career Options in Chemistry.

    ERIC Educational Resources Information Center

    Belloli, Robert C.

    1985-01-01

    Describes a credit/no credit course which focuses on career options in chemistry. The course (consisting of 15 one-hour seminar-type sessions) includes guest speakers for several sessions and an emphasis (in introductory sessions) on graduate school in chemistry, the chemical industry, resumes, and interviews. Also briefly describes an internship…

  16. Movies in Chemistry Education

    ERIC Educational Resources Information Center

    Pekdag, Bulent; Le Marechal, Jean-Francois

    2010-01-01

    This article reviews numerous studies on chemistry movies. Movies, or moving pictures, are important elements of multimedia and signify a privileged or motivating means of presenting knowledge. Studies on chemistry movies show that the first movie productions in this field were devoted to university lectures or documentaries. Shorter movies were…

  17. Infrared Lasers in Chemistry.

    ERIC Educational Resources Information Center

    John, Phillip

    1982-01-01

    Selected infrared laser chemistry topics are discussed including carbon dioxide lasers, infrared quanta and molecules, laser-induced chemistry, structural isomerization (laser purification, sensitized reactions, and dielectric breakdown), and fundamental principles of laser isotope separation, focusing on uranium isotope separation. (JN)

  18. Idaho National Laboratory Quarterly Performance Analysis - 3rd Quarter FY2014

    SciTech Connect

    Lisbeth A. Mitchell

    2014-09-01

    This report is published quarterly by the Idaho National Laboratory (INL) Performance Assurance Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of occurrence reports and other non-reportable issues identified at INL from July 2013 through June 2014.

  19. Idaho National Laboratory Quarterly Performance Analysis for the 2nd Quarter FY 2015

    SciTech Connect

    Mitchell, Lisbeth A.

    2015-04-01

    This report is published quarterly by the Idaho National Laboratory (INL) Quality and Performance Management Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of events for the 2nd Qtr FY-15.

  20. Augmented Reality for Close Quarters Combat

    ScienceCinema

    None

    2016-07-12

    Sandia National Laboratories has developed a state-of-the-art augmented reality training system for close-quarters combat (CQB). This system uses a wearable augmented reality system to place the user in a real environment while engaging enemy combatants in virtual space (Boston Dynamics DI-Guy). Umbra modeling and simulation environment is used to integrate and control the AR system.

  1. 77 FR 24505 - ACHP Quarterly Business Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-24

    ... From the Federal Register Online via the Government Publishing Office ADVISORY COUNCIL ON HISTORIC PRESERVATION ACHP Quarterly Business Meeting AGENCY: Advisory Council on Historic Preservation. ACTION: Notice... Office Closures and Disposal IX. New Business X. Adjourn Note: The meetings of the ACHP are open to...

  2. 77 FR 3784 - ACHP Quarterly Business Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-25

    ... From the Federal Register Online via the Government Publishing Office ADVISORY COUNCIL ON HISTORIC PRESERVATION ACHP Quarterly Business Meeting AGENCY: Advisory Council on Historic Preservation. ACTION: Notice... Implementation C. Bureau of Land Management Nationwide Programmatic Agreement VIII. New Business IX. Adjourn...

  3. Quarterly coal report, April 1995--June 1995

    SciTech Connect

    1995-11-01

    This document provides comprehensive information about U.S. coal production, distribution, imports, exports, prices, and consumption. Coke production, consumption, distribution, imports, and exports are also provided. This report presents compiled data for April thru June, and historical data for 1987 thru the first quarter of 1995.

  4. 46 CFR 122.724 - Quarterly inspections.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Quarterly inspections. 122.724 Section 122.724 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS OPERATIONS Operational Readiness, Maintenance, and Inspection...

  5. "The Career Development Quarterly": A Centennial Retrospective

    ERIC Educational Resources Information Center

    Savickas, Mark L.; Pope, Mark; Niles, Spencer G.

    2011-01-01

    "The Career Development Quarterly" has been the premier journal in the field of vocational guidance and career intervention since its inception 100 years ago. To celebrate its centennial, 3 former editors trace its evolution from a modest and occasional newsletter to its current status as a major professional journal. They recount its history of…

  6. Washington Community Colleges Fall Quarter Report, 1982.

    ERIC Educational Resources Information Center

    Story, Sherie; And Others

    Information on enrollments and student characteristics at Washington state community colleges is provided in this report for fall 1982. After introductory material and report highlights, tables provide data on headcount and full-time equivalent (FTE) enrollment for fall quarters 1978 through 1982; FTE and headcount by course intent category;…

  7. English Leadership Quarterly, 2002-2003.

    ERIC Educational Resources Information Center

    Wilcox, Bonita L., Ed.

    2003-01-01

    This 25th volume of "English Leadership Quarterly" contains articles on topics of interest to those in positions of leadership in departments (elementary, secondary, or college) where English is taught. Each issue focuses on a different theme. Articles in Volume 25 Number 1 focus on leadership and literacy and are: "Research Summary of a Best…

  8. English Leadership Quarterly, 2000-2001.

    ERIC Educational Resources Information Center

    Kiernan, Henry, Ed.

    2001-01-01

    This 23rd volume of "English Leadership Quarterly" contains articles on topics of interest to those in positions of leadership in departments (elementary, secondary, or college) where English is taught. Each issue focuses on a different theme. Articles in Volume 23 Number 1 are: "Block Scheduling and Student Achievement" (Elizabeth Howard); "Block…

  9. 9 CFR 332.8 - Quarterly reports.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 2 2012-01-01 2012-01-01 false Quarterly reports. 332.8 Section 332.8 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY ORGANIZATION AND TERMINOLOGY; MANDATORY MEAT AND POULTRY PRODUCTS INSPECTION AND VOLUNTARY INSPECTION...

  10. 9 CFR 332.8 - Quarterly reports.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 2 2013-01-01 2013-01-01 false Quarterly reports. 332.8 Section 332.8 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY ORGANIZATION AND TERMINOLOGY; MANDATORY MEAT AND POULTRY PRODUCTS INSPECTION AND VOLUNTARY INSPECTION...

  11. English Leadership Quarterly, 1997-1998.

    ERIC Educational Resources Information Center

    Kiernan, Henry, Ed.

    1998-01-01

    These six theme issues of the "English Leadership Quarterly" represent those published during 1997 and part of 1998--volume 19 consists of the traditional four issues, while volume 20 consists of only two issues because of a change in publication schedule. Articles in volume 19 number 1 deal with theories, issues, and personal accounts on the…

  12. Student Affairs and Services Stream: College Quarterly

    ERIC Educational Resources Information Center

    Buddel, Neil

    2015-01-01

    "College Quarterly" recently introduced a stream for academic and scholar-practitioner dialogue concerning student affairs and services. To contribute to the growth and enhancement of the field, scholars and scholar-practitioners are invited to contribute original pieces that advance scholarship and/or practice around facilitating…

  13. Augmented Reality for Close Quarters Combat

    SciTech Connect

    2013-09-20

    Sandia National Laboratories has developed a state-of-the-art augmented reality training system for close-quarters combat (CQB). This system uses a wearable augmented reality system to place the user in a real environment while engaging enemy combatants in virtual space (Boston Dynamics DI-Guy). Umbra modeling and simulation environment is used to integrate and control the AR system.

  14. RTO Technical Publications: A Quarterly Listing

    NASA Technical Reports Server (NTRS)

    2004-01-01

    This is a listing of recent unclassified RTO technical publications processed by the NASA Center for AeroSpace Information. Contents include the following: RTO Technical Publications: A Quarterly Listing. Implications of Multilingual Interoperability of Speech Technology for Military Use. Non-Lethal Weapons and Future Peace Enforcement Operations.

  15. Trustee Quarterly, Issues 1-3, 1996.

    ERIC Educational Resources Information Center

    Hutchins, Sally, Ed.

    1996-01-01

    The three issues of "Trustee Quarterly" contained in this document focus on topics of current concern to community college trustees. Issue 1 for 1996 focuses on the policy governance model of community college board leadership, offering the following feature articles: "John Carver...and His Contribution to Community College Governance," (Ray…

  16. 14 CFR 93.325 - Quarterly reporting.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Quarterly reporting. 93.325 Section 93.325 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Special Flight Rules in the Vicinity of Grand Canyon National Park, AZ §...

  17. Subject Access Project. Second Quarterly Progress Report.

    ERIC Educational Resources Information Center

    Atherton, Pauline

    The Subject Access Project second quarterly report for September to December 1976 summarized in-progress work to improve subject access to monographs. Activities include: (1) analysis of book indexes and tables of contents for terms to augment MARC subject description; (2) analysis of additional book sections--e.g., maps, illustrations, charts,…

  18. "Library Quarterly" Management Literature, 1931-2004

    ERIC Educational Resources Information Center

    Young, Arthur P.

    2006-01-01

    Management literature appearing in "Library Quarterly," 1931-2004, is examined in this essay. A total of 145 articles are identified that focus on administrative and managerial issues related to libraries during this period. Management literature is construed expansively and includes accounting, administration, assessment, budgets, facilities,…

  19. Metallurgical Laboratory Hazardous Waste Management Facility groundwater monitoring report. Fourth quarter 1993 and 1993 summary

    SciTech Connect

    Not Available

    1994-03-01

    The AMB wells at the Metallurgical Laboratory Hazardous Waste Management Facility (Met Lab HWMF) are monitored for selected constituents to comply with the Natural Resources Defense council et al. Consent Decree of May 1988 that identifies the Met Lab HWMF as subject to the Resource Conservation and Recovery Act. In addition, the wells are monitored, as requested, for other constituents as part of the Savannah River Site (SRS) Groundwater Monitoring Program. During the fourth quarter 1993, samples from AMB groundwater monitoring wells at the Metallurgical Laboratory Hazardous Waste Management Facility were analyzed for selected heavy metals, indicator parameters, radionuclides, volatile organic compounds, and other constituents. Six parameters exceeded standards during the quarter. As in previous quarters, dichloromethane (methylene chloride), tetrachloroethylene, and trichloroethylene exceeded final Primary Drinking Water Standards; pH, specific conductance, and total organic halogens exceeded the Savannah River Site Flag 2 criteria in one or more of the wells. Groundwater flow direction and rate in the water-table unit were similar to previous quarters.

  20. Quarterly coal report July--September 1996, February 1997

    SciTech Connect

    1997-02-01

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. This report presents detailed quarterly data for July through September 1996 and aggregated quarterly historical data for 1990 through the second quarter of 1996. Appendix A displays, from 1988 on, detailed quarterly historical coal imports data. 8 figs., 72 tabs.

  1. Art in Chemistry; Chemistry in Art.

    ERIC Educational Resources Information Center

    Greenberg, Barbara R.; Patterson, Dianne

    High school teachers are often challenged to motivate students who have little or no interest in a subject and are bored with traditional instruction. This unique book is designed to help educators make chemistry classes more interesting and links art curriculum to practical applications, integrating the two subjects through scores of hands-on…

  2. Korean Kimchi Chemistry: A Multicultural Chemistry Connection

    ERIC Educational Resources Information Center

    Murfin, Brian

    2009-01-01

    Connecting science with different cultures is one way to interest students in science, to relate science to their lives, and at the same time to broaden their horizons in a variety of ways. In the lesson described here, students make kimchi, a delicious and popular Korean dish that can be used to explore many important chemistry concepts,…

  3. EVOLVING FROM GREEN CHEMISTRY TO SUSTAINABLE CHEMISTRY

    EPA Science Inventory

    The twelve principles of green chemistry provide a foundation and pathway which allows researchers to incorporate greenness into existing reactions or when developing new technologies. Research from our laboratory has adopted many of these principles and utlizes them as a major c...

  4. Investigation of mineral transformations and ash deposition during staged combustion. Quarterly technical progress report, July 1, 1995-- September 30, 1995

    SciTech Connect

    Harb, J.N.

    1995-12-31

    Progress during the eighth quarter of a three-year study was made in three task areas: (1) analysis of coals; (3) parametric testing of the target coals, and (4) analysis of samples from the combustion tests. Routines for automated analysis of coal and mineral associations were completed and are now functional on our new ISIS system. Work on data processing which led to the development of a new means of interpreting composition information from the SEM was also completed during the quarter. This work is expected to yield substantial benefits in understanding the ash transformations during combustion. Several additional ash and deposit samples were collected this quarter. Deposition results have been explained qualitatively and samples has been mounted for quantitative analysis. A detailed characterization of mixing and coalescence was performed during the quarter. Results indicate that combustion under stage conditions does not change the chemistry of the final ash produced. Specifically, both iron and potassium distributions in long residence time ashes did not change as a function of combustion conditions. Some differences were observed in the potassium distribution at shorter residence times. There was also a difference in the size distribution of particles formed during staged combustion. The nature and significance of these differences are still under investigation.

  5. Moderator Chemistry Program

    SciTech Connect

    Dewitt, L.V.; Gibbs, A.; Lambert, D.P.; Bohrer, S.R.; Fanning, R.L.; Houston, M.W.; Stinson, S.L.; Deible, R.W.; Abdel-Khalik, S.I.

    1990-11-01

    Over the past fifteen months, the Systems Chemistry Group of the Reactor Engineering Department has undertaken a comprehensive study of the Department`s moderator chemistry program at Savannah River Site (SRS). An internal review was developed to formalize and document this program. Objectives were as outlined in a mission statement and action plan. In addition to the mission statement and action plan, nine separate task reports have been issued during the course of this study. Each of these task reports is included in this document as a chapter. This document is an organized compilation of the individual reports issued by the Systems Chemistry Group in assessment of SRS moderator chemistry to determine if there were significant gaps in the program as ft existed in October, 1989. While these reviews found no significant gaps in that mode of operation, or any items that adversely affected safety, items were identified that could be improved. Many of the items have already been dear with or are in the process of completion under this Moderator Chemistry Program and other Reactor Restart programs. A complete list of the items of improvement found under this assessment is found in Chapter 9, along with a proposed time table for correcting remaining items that can be improved for the chemistry program of SRS reactors. An additional external review of the moderator chemistry processes, recommendations, and responses to/from the Reactor Corrosion Mitigation Committee is included as Appendix to this compilation.

  6. Moderator Chemistry Program

    SciTech Connect

    Dewitt, L.V.; Gibbs, A.; Lambert, D.P.; Bohrer, S.R.; Fanning, R.L.; Houston, M.W.; Stinson, S.L.; Deible, R.W.; Abdel-Khalik, S.I.

    1990-11-01

    Over the past fifteen months, the Systems Chemistry Group of the Reactor Engineering Department has undertaken a comprehensive study of the Department's moderator chemistry program at Savannah River Site (SRS). An internal review was developed to formalize and document this program. Objectives were as outlined in a mission statement and action plan. In addition to the mission statement and action plan, nine separate task reports have been issued during the course of this study. Each of these task reports is included in this document as a chapter. This document is an organized compilation of the individual reports issued by the Systems Chemistry Group in assessment of SRS moderator chemistry to determine if there were significant gaps in the program as ft existed in October, 1989. While these reviews found no significant gaps in that mode of operation, or any items that adversely affected safety, items were identified that could be improved. Many of the items have already been dear with or are in the process of completion under this Moderator Chemistry Program and other Reactor Restart programs. A complete list of the items of improvement found under this assessment is found in Chapter 9, along with a proposed time table for correcting remaining items that can be improved for the chemistry program of SRS reactors. An additional external review of the moderator chemistry processes, recommendations, and responses to/from the Reactor Corrosion Mitigation Committee is included as Appendix to this compilation.

  7. Thermoacoustic refrigerators and engines comprising cascading stirling thermodynamic units

    SciTech Connect

    Backhaus, Scott; Swift, Greg

    2013-06-25

    The present invention includes a thermoacoustic assembly and method for improved efficiency. The assembly has a first stage Stirling thermal unit comprising a main ambient heat exchanger, a regenerator and at least one additional heat exchanger. The first stage Stirling thermal unit is serially coupled to a first end of a quarter wavelength long coupling tube. A second stage Stirling thermal unit comprising a main ambient heat exchanger, a regenerator, and at least one additional heat exchanger, is serially coupled to a second end of the quarter wavelength long coupling tube.

  8. Fluorine in medicinal chemistry.

    PubMed

    Swallow, Steven

    2015-01-01

    Since its first use in the steroid field in the late 1950s, the use of fluorine in medicinal chemistry has become commonplace, with the small electronegative fluorine atom being a key part of the medicinal chemist's repertoire of substitutions used to modulate all aspects of molecular properties including potency, physical chemistry and pharmacokinetics. This review will highlight the special nature of fluorine, drawing from a survey of marketed fluorinated pharmaceuticals and the medicinal chemistry literature, to illustrate key concepts exploited by medicinal chemists in their attempts to optimize drug molecules. Some of the potential pitfalls in the use of fluorine will also be highlighted.

  9. Frontiers in analytical chemistry

    SciTech Connect

    Amato, I.

    1988-12-15

    Doing more with less was the modus operandi of R. Buckminster Fuller, the late science genius, and inventor of such things as the geodesic dome. In late September, chemists described their own version of this maxim--learning more chemistry from less material and in less time--in a symposium titled Frontiers in Analytical Chemistry at the 196th National Meeting of the American Chemical Society in Los Angeles. Symposium organizer Allen J. Bard of the University of Texas at Austin assembled six speakers, himself among them, to survey pretty widely different areas of analytical chemistry.

  10. Computational quantum chemistry website

    SciTech Connect

    1997-08-22

    This report contains the contents of a web page related to research on the development of quantum chemistry methods for computational thermochemistry and the application of quantum chemistry methods to problems in material chemistry and chemical sciences. Research programs highlighted include: Gaussian-2 theory; Density functional theory; Molecular sieve materials; Diamond thin-film growth from buckyball precursors; Electronic structure calculations on lithium polymer electrolytes; Long-distance electronic coupling in donor/acceptor molecules; and Computational studies of NOx reactions in radioactive waste storage.

  11. Seawater Chemistry Package

    2005-11-23

    SeaChem Seawater Chemistry package provides routines to calculate pH, carbonate chemistry, density, and other quantities for seawater, based on the latest community standards. The chemistry is adapted from fortran routines provided by the OCMIP3/NOCES project, details of which are available at http://www.ipsl.jussieu.fr/OCMIP/. The SeaChem package can generate Fortran subroutines as well as Python wrappers for those routines. Thus the same code can be used by Python or Fortran analysis packages and Fortran ocean models alike.

  12. Naturally fractured tight gas - gas reservoir detection optimization. Quarterly report, June 1, 1996--September 30, 1996

    SciTech Connect

    Maxwell, J.M.; Ortoleva, P.; Payne, D.; Sibo, W.

    1996-11-15

    This document contains the status report for the Naturally Fractured Tight Gas-Gas Reservoir Detection Optimization project for the contract period 9/30/93 to 3/31/97. Data from seismic surveys are analyzed for structural imaging of reflector units. The data were stacked using the new, improved statics and normal moveout velocities. The 3-D basin modeling effort is continuing with code development. The main activities of this quarter were analysis of fluid pressure data, improved sedimentary history, lithologic unit geometry reconstruction algorithm and computer module, and further improvement, verification, and debugging of the basin stress and multi-phase reaction transport module.

  13. Embedding Environmental Sustainability in the Undergraduate Chemistry Curriculum: A Case Study

    ERIC Educational Resources Information Center

    Schultz, Madeleine

    2013-01-01

    In spite of increasing attention devoted to the importance of embedding sustainability in university curricula, few Australian universities include specific green chemistry units, and there is no mention of green or sustainable chemistry concepts in the majority of units. In this paper, an argument is posited that all universities should embed…

  14. PFBC HGCU test facility technical progress report. First Quarter, CY 1994

    SciTech Connect

    Not Available

    1994-04-01

    This is the eighteenth Technical Progress Report submitted in connection with the cooperative agreement between the DOE and Ohio Power Company for the Tidd PFBC Hot Gas Clean Up Test Facility. During this quarter, the Tidd Hot Gas Clean Up System operated for 835 hours during six separate test runs. The system was starting into a seventh run at the end of the quarter. Highlights of this period are summarized below: the longest run during the quarter was approximately 333 hours; filter pressure drop was stable during all test runs this quarter using spoiling air to the primary cyclone upstream of the Advanced Particle Filter (APF); the tempering air system was commissioned this quarter which enabled the unit to operate at full load conditions while limiting the gas temperature in the APF to 1,400 F; during a portion of the one run, the tempering air was removed and the filter operated without problems up to 1,450 F; ash sampling was performed by Battelle personnel upstream and downstream of the APF and ash loading and particle size distribution data were obtained, a summary report is included; a hot area on the APF head was successfully repaired in service; a hot spot on the top of an expansion joint was successfully repaired by drilling holes from the inside of the pipe and pumping in refractory insulation; a corrosion inspection program for the HGCU system was issued giving recommendations for points to inspect; filter internal inspections following test runs 13 and 17 revealed a light coating (up to 1/4 inch thick) of residual ash on the candles and some ash bridging between the dust sheds and inner rows of candles. Data from these inspections are included with this report.

  15. US energy industry financial developments, 1993 third quarter

    SciTech Connect

    Not Available

    1993-12-01

    Based on information provided in 1993 third quarter financial disclosures, the average net income for 112 petroleum companies -- including 18 majors -- rose 13 percent between the third quarter of 1992 and the third quarter of 1993. The gain in overall petroleum income was derived from increases in refined product consumption and margins, which improved the profitability of downstream petroleum (refining, marketing and transport) operations. A 17-percent decline in crude oil prices led to reduced income for upstream (oil and gas exploration, development and production) operations. A 16-percent rise in natural gas wellhead prices only partially offset the negative effects of low crude oil prices. Electric utilities also reported improved financial results for the third quarter of 1993 as hotter summer temperatures relative to the year-earlier quarter helped boost air conditioning demand and overall electricity usage. The following points highlight third-quarter energy industry financial developments: (1) Refined product demand and margins lift downstream earnings. Petroleum product consumption rose 2 percent between the third quarter of 1992 and the third quarter of 1993. Although petroleum product prices declined in the most recent reporting period, they did not decline as much as crude oil input prices. As a consequence, refined product margins widened. (2) Lower crude oil prices reduce upstream earnings. Crude oil prices fell 17 percent between the third quarter of 1992 and the third quarter of 1993 leading to a substantial reduction in income for the major petroleum companies` upstream operations. (3) Drilling income rises with increased North American exploratory activity.

  16. General Chemistry for Engineers.

    ERIC Educational Resources Information Center

    Kybett, B. D.

    1982-01-01

    Discusses the relationship between molecular structure, intermolecular forces, and tensile strengths of a polymer and suggests that this is a logical way to introduce polymers into a general chemistry course. (Author/JN)

  17. Chemistry for Nonscientists

    ERIC Educational Resources Information Center

    Weil, Thomas A.; And Others

    1974-01-01

    Discusses the case of DDT which can be introduced to nonscience students in a chemistry course, including the development of DDT, problems associated with its adverse effects, and curtailment of its use in our environments. (CC)

  18. Chemistry for Kids.

    ERIC Educational Resources Information Center

    Sato, Sanae; Majoros, Bela

    1988-01-01

    Reports two methods for interesting children in chemistry. Describes a method for producing large soap bubbles and films for study. Examines the use of simple stories to explain common chemical concepts with example given. Lists titles of available stories. (ML)

  19. Chemistry with a Peel.

    ERIC Educational Resources Information Center

    Borer, Londa; Larsen, Eric

    1997-01-01

    Presents experiments that introduce natural product chemistry into high school classrooms. In the laboratory activities, students isolate and analyze the oil in orange peels. Students also perform a steam distillation and learn about terpenes. (DDR)

  20. Chemistry Laboratory Safety Check

    ERIC Educational Resources Information Center

    Patnoe, Richard L.

    1976-01-01

    An accident prevention/safety check list for chemistry laboratories is printed. Included are checks of equipment, facilities, storage and handling of chemicals, laboratory procedures, instruction procedures, and items to be excluded from chemical laboratories. (SL)