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Last update: November 12, 2013.
1

Diagnostics for Lab and Astrophysical Plasmas  

NASA Astrophysics Data System (ADS)

To monitor effects of vacuum conditioning, three radiation diagnostics are being built: a Helium-Neon (HeNe) heterodyne interferometer, a Bolometer, and a Hydrogen-alpha (H?) detector. The interferometer will measure the line-average refractive index of the plasma, enabling us to obtain the line average density. The bolometer is a soft X-ray/UV detector (similar to those used on the Sustained Spheromak Physics Experiment (McLean et al. in Rev. Sci. Instruments 72(1):556-561, 2001) and the High-Beta Tokamak Experiment (Xiao and Navratil. in Rev. Sci. Instrument 67(9):3334-3335, 1996) and is used to directly measure the radiation loss from photons. The H? detector will detect the amount of H? being emitted by the plasma as a function of time, thus gauging the neutral density. These same concepts are also applied to astrophysical plasmas, with slightly different approaches. A brief overlap between diagnostics/detectors for laboratory and astrophysical plasmas is discussed.

Baerny, J. K.; Woodruff, S.; Smith, C.

2010-12-01

2

Diagnostics for Lab and Astrophysical Plasmas  

Microsoft Academic Search

To monitor effects of vacuum conditioning, three radiation diagnostics are being built: a Helium–Neon (HeNe) heterodyne interferometer,\\u000a a Bolometer, and a Hydrogen-alpha (H?) detector. The interferometer will measure the line-average refractive index of the\\u000a plasma, enabling us to obtain the line average density. The bolometer is a soft X-ray\\/UV detector (similar to those used on\\u000a the Sustained Spheromak Physics Experiment

J. K. Baerny; S. Woodruff; C. Smith

2010-01-01

3

Optimization of the LaB6 Cathode for Divertor Plasma Simulator (DiPS)  

Microsoft Academic Search

A steady-state high density LaB6 dc plasma source is developed for the divertor plasma simulator (DiPS), which is a linear device for the studies on various electric probes, plasma-wall interactions, atomic processes, and for the development of plasma diagnostics. Since the LaB6 is very weak against the thermal shock, which is possibly caused by the overflow of the discharge current

H.-J. Wool; K.-S. Chung; H.-J. You; Y.-J. Seo; G.-S. Choi; T. Lho

2006-01-01

4

Hollow LaB 6 cathode arc plasma source for material processing and testing  

Microsoft Academic Search

In the framework of collaboration between KFA Jülich and the University of Tokyo, a new test facility for the study of plasma-material interaction processes has been developed and constructed. The basic configuration of this facility is a low-pressure d.c.-arc discharge from a hollow cathode. The hollow cathode of the plasma source is made from LaB6 to obtain discharge currents of

H. Bolt; V. Hemel; H. Nickel; S. Tanaka

1995-01-01

5

Plasma Source with LaB6 Hollow Cathode for a Diagnostic Beam Injector.  

National Technical Information Service (NTIS)

The hydrogen neutral beams are widely used to diagnose the plasma in magnetic fusion devices. The beams are extracted from the plasma generated by a plasma source, accelerated to desired energy and subsequently neutralized in a gas target. The critically ...

A. Kreter A. A. Ivanov B. Schweer P. P. Deichuli V. L. Davydenko

2003-01-01

6

Advanced Lab View® Labs  

Microsoft Academic Search

In the world of computer-based data acquisition and control, the graphical interface program LabVIEW from National Instruments is so ubiquitous that in many ways it has almost become the laboratory standard. To date, there have been approximately fifteen books concerning LabVIEW, but Professor Essick's treatise takes on a completely different tack than all of the previous discussions. In the more

John Essick; Eric D. Jones

1999-01-01

7

The BErkeley Lab Laser Accelerator (BELLA): A 10 GeV Laser Plasma Accelerator  

SciTech Connect

An overview is presented of the design of a 10 GeV laser plasma accelerator (LPA) that will be driven by a PW-class laser system and of the BELLA Project, which has as its primary goal to build and install the required Ti:sapphire laser system for the acceleration experiments. The basic design of the 10 GeV stage aims at operation in the quasi-linear regime, where the laser excited wakes are largely sinusoidal and offer the possibility of accelerating both electrons and positrons. Simulations show that a 10 GeV electron beam can be generated in a meter scale plasma channel guided LPA operating at a density of about 1017 cm-3 and powered by laser pulses containing 30-40 J of energy in a 50- 200 fs duration pulse, focused to a spotsize of 50-100 micron. The lay-out of the facility and laser system will be presented as well as the progress on building the facility.

Leemans, W.P.; Duarte, R.; Esarey, E.; Fournier, S.; Geddes, C.G.R.; Lockhart, D.; Schroeder, C.B.; Toth, C.; Vay, J.-L.; Zimmermann, S.

2010-06-01

8

Ion sources with arc-discharge plasma box driven by directly heated LaB(6) electron emitter or cold cathode.  

PubMed

In the Budker Institute, Novosibirsk, an ion source with arc-discharge plasma box has been developed in the recent years for application in thermonuclear devices for plasma diagnostics. Several modifications of the ion source were provided with extracted current ranging from 1 to 7 A and pulse duration of up to 4 s. Initially, the arc-discharge plasma box with cold cathode was used, with which pulse duration is limited to 2 s by the cathode overheating and sputtering in local arc spots. Recently, a directly heated LaB(6) electron emitter was employed instead, which has extended lifetime compared to the cold cathode. In the paper, characteristics of the beam produced with both arrangements of the plasma box are presented. PMID:18315229

Ivanov, Alexander A; Davydenko, Vladimir I; Deichuli, Petr P; Shulzhenko, Grigori I; Stupishin, Nikolay V

2008-02-01

9

Lab Safety  

NSDL National Science Digital Library

The North Carolina Community College System BioNetwork's interactive eLearning tools (IETs) are reusable chunks of training that can be deployed in a variety of courses or training programs. IETs are designed to enhance, not replace hands-on training. Learners are able to enter a hands-on lab experience better prepared and more confident. This particular IET delves into laboratory safety, and covers interacting with the lab environment and a new lab partner. Topics covered include proper dress, housekeeping, safety equipment, mixing, fire safety, and spills. When the module is completed, visitors will be able to demonstrate proper lab safety techniques.

2012-11-06

10

USMES Design Lab Manual.  

ERIC Educational Resources Information Center

|The Design Lab Manual provides a detailed description of various types of Design Labs used in the USMES program. Chapters cover the USMES Design Lab concept; tone of Design Lab activities; in-class Design Lab; portable Design Lab; the Design Lab room; cost/scrounging; staffing and scheduling a Design Lab; Design Lab training for teachers; Design…

Education Development Center, Inc., Newton, MA.

11

Transmuted Labs  

NASA Astrophysics Data System (ADS)

This article describes a first year high school chemistry lab program which its author has developed over the past fifteen years. It features laboratory exercises that have have been altered ("transmuted") so that students may be evaluated on the accuracy of their work. For example, a traditional lab may ask that students determine the amount of product obtained from a reaction and compare it to theoretical value. In its transmuted form this lab would require that students either deduce the mass of a reactant from a measured mass of product, or perhaps predict the mass of product from a known mass of reactant. The author reports that lab exercises transmuted in this way work well with beginning students because the labs 1) make immediate sense to scientifically unsophisticated students, 2) challenge students to do their best work, 3) motivate by enlisting students' desires for social recognition, and 4) appeal to students' love of games and play.

Plumsky, Roger

1996-05-01

12

Data acquisition and real-time signal processing of plasma diagnostics on ASDEX Upgrade using LabVIEW RT  

Microsoft Academic Search

The existing VxWorks real-time system for the position and shape control in ASDEX Upgrade has been extended to calculate magnetic flux surfaces in real-time using a multi-core PCI Express system running LabVIEW RT 8.6. real-time signal processing of bolometers and manometers is performed with the on-board FPGA to calculate the measured radiated power flux and particle flux respectively from the

L. Giannone; M. Cerna; R. Cole; M. Fitzek; A. Kallenbach; K. Lüddecke; P. J. McCarthy; A. Scarabosio; W. Schneider; A. C. C. Sips; W. Treutterer; A. Vrancic; L. Wenzel; H. Yi; K. Behler; T. Eich; H. Eixenberger; J. C. Fuchs; G. Haas; G. Lexa; M. Marquardt; A. Mlynek; G. Neu; G. Raupp; M. Reich; J. Sachtleben; K. H. Schuhbeck; T. Zehetbauer; S. Concezzi; T. Debelle; B. Marker; M. Munroe; N. Petersen; D. Schmidt

2010-01-01

13

Advanced LabVIEW Labs  

SciTech Connect

In the world of computer-based data acquisition and control, the graphical interface program LabVIEW from National Instruments is so ubiquitous that in many ways it has almost become the laboratory standard. To date, there have been approximately fifteen books concerning LabVIEW, but Professor Essick's treatise takes on a completely different tack than all of the previous discussions. In the more standard treatments of the ways and wherefores of LabVIEW such as LabVIEW Graphical Programming: Practical Applications in Instrumentation and Control by Gary W. Johnson (McGraw Hill, NY 1997), the emphasis has been instructing the reader how to program LabVIEW to create a Virtual Instrument (VI) on the computer for interfacing to a particular instruments. LabVIEW is written in G a graphical programming language developed by National Instruments. In the past the emphasis has been on training the experimenter to learn G . Without going into details here, G incorporates the usual loops, arithmetic expressions, etc., found in many programming languages, but in an icon (graphical) environment. The net result being that LabVIEW contains all of the standard methods needed for interfacing to instruments, data acquisition, data analysis, graphics, and also methodology to incorporate programs written in other languages into LabVIEW. Historically, according to Professor Essick, he developed a series of experiments for an upper division laboratory course for computer-based instrumentation. His observation was that while many students had the necessary background in computer programming languages, there were students who had virtually no concept about writing a computer program let alone a computer- based interfacing program. Thus the beginnings of a concept for not only teaching computer- based instrumentation techniques, but aiso a method for the beginner to experience writing a com- puter program. Professor Essick saw LabVIEW as the perfect environment in which to teach computer-based research skills. With this goal in mind, he has succeeded admirably. Advanced LabVIEW Labs presents a series of chapters devoted to not only introducing the reader to LabVIEW, but also to the concepts necessary for writing a successful computer pro- gram. Each chapter is an assignment for the student and is suitable for a ten week course. The first topic introduces the while loop and waveform chart VI'S. After learning how to launch LabVIEW, the student then leans how to use LabVIEW functions such as sine and cosine. The beauty of thk and subsequent chapters, the student is introduced immediately to computer-based instruction by learning how to display the results in graph form on the screen. At each point along the way, the student is not only introduced to another LabVIEW operation, but also to such subjects as spread sheets for data storage, numerical integration, Fourier transformations', curve fitting algorithms, etc. The last few chapters conclude with the purpose of the learning module, and that is, com- puter-based instrumentation. Computer-based laboratory projects such as analog-to-digital con- version, digitizing oscilloscopes treated. Advanced Lab VIEW Labs finishes with a treatment on GPIB interfacing and finally, the student is asked to create an operating VI for temperature con- trol. This is an excellent text, not only as an treatise on LabVIEW but also as an introduction to computer programming logic. All programmers, who are struggling to not only learning how interface computers to instruments, but also trying understand top down programming and other programming language techniques, should add Advanced Lab-VIEW Labs to their computer library.

Jones, Eric D.

1999-06-17

14

Advanced LabVIEW Labs  

SciTech Connect

In the world of computer-based data acquisition and control, the graphical interface program LabVIEW from National Instruments is so ubiquitous that in many ways it has almost become the laboratory standard. To date, there have been approximately fifteen books concerning LabVIEW, but Professor Essick's treatise takes on a completely different tack than all of the previous discussions. In the more standard treatments of the ways and wherefores of LabVIEW such as LabVIEW Graphical Programming: Practical Applications in Instrumentation and Control by Gary W. Johnson (McGraw Hill, NY 1997), the emphasis has been instructing the reader how to program LabVIEW to create a Virtual Instrument (VI) on the computer for interfacing to a particular instruments. LabVIEW is written in "G" a graphical programming language developed by National Instruments. In the past the emphasis has been on training the experimenter to learn "G". Without going into details here, "G" incorporates the usual loops, arithmetic expressions, etc., found in many programming languages, but in an icon (graphical) environment. The net result being that LabVIEW contains all of the standard methods needed for interfacing to instruments, data acquisition, data analysis, graphics, and also methodology to incorporate programs written in other languages into LabVIEW. Historically, according to Professor Essick, he developed a series of experiments for an upper division laboratory course for computer-based instrumentation. His observation was that while many students had the necessary background in computer programming languages, there were students who had virtually no concept about writing a computer program let alone a computer- based interfacing program. Thus the beginnings of a concept for not only teaching computer- based instrumentation techniques, but aiso a method for the beginner to experience writing a com- puter program. Professor Essick saw LabVIEW as the "perfect environment in which to teach computer-based research skills." With this goal in mind, he has succeeded admirably. Advanced LabVIEW Labs presents a series of chapters devoted to not only introducing the reader to LabVIEW, but also to the concepts necessary for writing a successful computer pro- gram. Each chapter is an assignment for the student and is suitable for a ten week course. The first topic introduces the while loop and waveform chart VI'S. After learning how to launch LabVIEW, the student then leans how to use LabVIEW functions such as sine and cosine. The beauty of thk and subsequent chapters, the student is introduced immediately to computer-based instruction by learning how to display the results in graph form on the screen. At each point along the way, the student is not only introduced to another LabVIEW operation, but also to such subjects as spread sheets for data storage, numerical integration, Fourier transformations', curve fitting algorithms, etc. The last few chapters conclude with the purpose of the learning module, and that is, com- puter-based instrumentation. Computer-based laboratory projects such as analog-to-digital con- version, digitizing oscilloscopes treated. Advanced Lab VIEW Labs finishes with a treatment on GPIB interfacing and finally, the student is asked to create an operating VI for temperature con- trol. This is an excellent text, not only as an treatise on LabVIEW but also as an introduction to computer programming logic. All programmers, who are struggling to not only learning how interface computers to instruments, but also trying understand top down programming and other programming language techniques, should add Advanced Lab-VIEW Labs to their computer library.

Jones, Eric D.

1999-06-17

15

Computer Lab  

USGS Multimedia Gallery

USGS geologists Peter Triezenberg and William Danforth sit with WHOI/LDEO Computer Technician Tom Bolmer in the Healy computer lab. This was during a scientific expedition to map the Arctic seafloor....

2009-01-28

16

Virtual Labs  

NSDL National Science Digital Library

These virtual labs from the Howard Hughes Medical Institute allow students to experience laboratory procedures as if they were a professional scientist. Students can isolate and analyze bacterial DNA sequences, examine cardiac patients, dissect a leech, or diagnose diseases by detecting the presence of antibodies. These virtual labs include animated steps that must be performed, along with textual instructions and explanations so that students understand not only what they are doing, but also why they are doing it. This is an extensive Web site that offers a lot to learn, and a chance to have fun in the process.

1969-12-31

17

Butterfly Lab  

NSDL National Science Digital Library

This Web site comes from the Peggy Notebaert Nature Museum's Judy Istock Butterfly Haven, located in Chicago, Illinois. Designed for students in grades 7-12, Butterfly Lab offers online activities and materials covering butterfly anatomy, life cycle, behavior, and related topics. Detailed information is accompanied by colorful diagrams and photographs. Butterfly Lab also offers three offline activities involving butterfly anatomy, movement, identification, handling, and more. Students may submit their offline creations to be posted on the Web site. An audio feature allows users to listen to the Museum's director of biology discuss butterfly biology. The site includes a guide for teachers and a FAQ page.

18

Lab Management.  

ERIC Educational Resources Information Center

Discusses barriers individuals face in using computers in the classroom and the importance of eliminating these barriers. The article notes that visual, mobility, and hearing impairments are the disabilities most often encountered in school labs and that numerous software and hardware tools are available to help individuals with these disabilities…

Jones, Linda

1997-01-01

19

Labs: 1987.  

ERIC Educational Resources Information Center

|This article presents a variety of topics discussed in this column and at a biology teachers' workshop concerning the quality and value of lab techniques used for teaching high school biology. Topics included are Drosophila salivary glands, sea urchins, innovations, dyes and networking. (CW)|

Igelsrud, Don, Ed.

1988-01-01

20

Reading Lab.  

ERIC Educational Resources Information Center

This guide is intended for use in conducting a reading lab for a broad group of workers ranging from nonreaders to persons reading at a fifth-grade level. Presented first is a course overview that includes the following: information on the course's targeted population, student selection process, and demographics; strategies for adult remediation;…

Burt, Lorna

21

Jefferson Lab  

NSDL National Science Digital Library

The Thomas Jefferson National Accelerator Facility, or the Jefferson Lab, is funded in part by the Department of Energy and was "built to probe the nucleus of the atom to learn more about the quark structure of matter." Of special interest to researchers will be the extensive experiments section with experiments organized by hall, by status in terms of approval and completion, by proposals, and by physics category. Descriptions of individual experiments include summaries (.ps), participating institutions, experiment titles, and a letter grade rating. The publications section of the site contains a catalog with online publications (.pdf) organized by year, and a complete searchable bibliographic list with downloadable technical documents organized by year. Also, for educators, the Science Education at Jefferson Lab Page ( http://www.jlab.org/services/pced/?students/teachers) lists internships, special events, and classroom resources including a tour of the atom, a periodic table of elements, and an element flashcard game.

22

Earth Lab  

NSDL National Science Digital Library

Earth Lab is a database of fossils, minerals and rocks from the UK. A photograph is displayed for each specimen selected, as well as the scientific name, location and properties or age of the specimen. The fossils can be searched by area, age, and group; minerals by area, element, group, and property; and rocks by area, geological age, and type of rock. A series of questions allows users to identify their own specimens.

23

Echolocation Lab  

NSDL National Science Digital Library

In this lab, learners experience how dolphins and other echolocating animals use their senses to locate and identify objects without using their sense of sight. To simulate this process, learners work in pairs (one blindfolded and one using a water gun), shoot at targets, listen to the sound of the water hitting the target, and attempt to guess the target's shape and material. Learners also analyze how distance affects echolocation and how tuna nets impact dolphins' ability to echolocate.

Mills, Donald

2009-01-01

24

Bead injection extraction chromatography using high-capacity lab-on-valve as a front end to inductively coupled plasma mass spectrometry for urine radiobioassay.  

PubMed

A novel bead injection (BI) extraction chromatographic microflow system exploiting a high-capacity lab-on-valve (LOV) platform coupled with inductively coupled plasma mass spectrometric detection is developed for rapid and automated determination of plutonium in human urine. A column attached to the LOV processing unit is loaded online with a metered amount of disposable extraction chromatographic resin (up to 330 mg of TEVA (abbreviation for tetravalent actinides)) through programmable beads transport. Selective capture and purification of plutonium onto the resin beads is then performed by pressure driven flow after preliminary sample pretreatment. The analytical results demonstrate the large capacity of bead surfaces for uptake of Pu within the tailor-made LOV platform that fosters processing of large-sized biological samples, e.g., 1 L of human urine, along with good reproducibility for automatic column renewal (0.319 ± 0.004 g, n = 5). The chemical yields of plutonium were averagely better than 90% under the optimal experimental conditions, and the entire analytical procedure could be accomplished within a short time frame (<3 h) as compared to manual counterparts (1-2 days). Therefore, the developed system is well suited for expedient analysis of low-level plutonium in urine of exposed individuals as required in emergency situations. PMID:23339705

Qiao, Jixin; Hou, Xiaolin; Roos, Per; Miró, Manuel

2013-02-14

25

Paleotempestology Lab  

NSDL National Science Digital Library

This introductory lab introduces students to stratigraphic correlation and the dating of geologic materials. Students analyze sediment cores derived from coastal marshes that preserve a record of past hurricane activity. The task is for students to assess the past frequency and intensity of hurricane activity in the region from which the cores were derived. In teams, students log the sedimentological variations in the cores. Then each individual student builds stratigraphic columns for each core. Based on their stratigraphic columns, students try to preliminarily correlate hurricane events between the cores. In small teams, they then collectively decide to "purchase" absolute dates using a fixed budget to test their preliminary correlations and arrive at an overall interpretation of the hurricane activity in the region.

Lawrence, Kira

26

HHMI: Virtual Neurophysiology Lab  

NSDL National Science Digital Library

This Virtual Lab provides students the opportunity to explore the electrical activity of individual neurons by virtually stimulating the skin of a leech. A lab notebook, equipment list, atlas of cells and recordings is provided to simulate a lab activity.

HHMI (Howard Hughes Medical Institute)

2012-12-01

27

LabWrite: Improving Lab Reports  

NSDL National Science Digital Library

LabWrite is a tool for instructing students in organizing and preparing proper lab reports. The tool is organized into four sections: PreLab, where students answer a series of questions to prepare an introduction; InLab, a laboratory notebook for taking notes on lab procedures and recording data and observations; PostLab, a guide for writing the report; and LabCheck, a guide and checklist for checking over and revising a lab report before submitting it. Each section operates in a choice of modes: self-guiding, hardcopy handouts, or interactive tutoring. There is also a set of additional resources for constructing graphs, writing, documenting sources, writing proposals, and others. A version for younger students is also included.

28

Decisions Shape a Lab (Lab Notes).  

ERIC Educational Resources Information Center

Offers questions to guide both initial and ongoing development of a computer writing lab. Discusses ways mobile workstations (consisting of a computer, printer, overhead, and a LCD projection unit) will extend the writing lab. (SR)

Porter, Bernajean

1992-01-01

29

LabWrite  

NSDL National Science Digital Library

LabWrite is an online resource designed to help students learn science by writing better laboratory reports. It is organized into four major parts, reflecting the chronological experience of the lab. PreLab asks students to respond to a set of questions that lead them through a scientific understanding of the lab before they actually begin. InLab provides resources and help for students as they set up the lab and gather and organize data. PostLab guides students step by step in writing the lab report. LabCheck offers students a checklist to help them revise their reports and an evaluation guide to help them learn from a graded report so that they can improve their skills. LabWrite also provides an extensive set of resources for teaching students how to create tables and graphs. In addition, the LabWrite Tutor is an application that allows students to write their lab reports online. Published results of a control-group study show that LabWrite significantly improves students' understanding of the scientific concept of the lab and their ability to think scientifically about the lab.

Carter, Michael

2000-07-15

30

CSI closed lab vs. open lab experiment  

Microsoft Academic Search

Recommendations of the ACM\\/IEEE Joint Curriculum Task Force on the Core of Computer Science and the dissatisfaction with the poor performance of too many CS1 students at Middle Tennessee State University combined to motivate the Computer Science Department to compare the use of closed labs and open labs. A controlled experiment was conducted in the Fall 1992 and Spring 1993

Mack Thweatt

1994-01-01

31

Using Field Labs  

NSDL National Science Digital Library

Written by Mary Savina of Carleton College Students love field labs! They enjoy being outside and they appreciate the fact that geoscience field labs are unusually tactile and bring them into contact with real, ...

Savina, Mary

32

Cybercamp Lab Book  

NSDL National Science Digital Library

This lab manual developed by Whatcom Community College provides activities for a high school cybersecurity camp. The 101-page manual contains instructions for nine labs arranged into five sessions. Lab activities include: install Ubuntu 10.10 in VMware, set up a simple network, investigate Linux terminal commands and file structure, secure a vulnerable machine, and investigate secure we development.

2012-07-24

33

Lab Investigation Mixture Separation  

NSDL National Science Digital Library

This is a lab that is designed to have students write a lab procedure and separate out mixture of substances with different properties. It is also a good introduction to the different lab equipment that they will be using through out the year.

34

Libraries to Labs  

Microsoft Academic Search

The contemporary academic library increasingly provides one or more public access computer labs. Students use these labs for word processing, Internet browsing, creating spreadsheets, and other related applications. Providing these types of computer labs in academic libraries is a relatively new development and requires effective management techniques. The purpose of this article is to examine some of the current management

Sheryl Moore

2001-01-01

35

Nanotechnology Research Labs  

NSDL National Science Digital Library

This web site has a list of links to various nano research labs. The first section of links includes academic, government and corporate labs, which do research but do not make their facilities available to outside researchers. The second set of links includes labs that accept outside researchers, such as the National Institute of Standards.

2013-07-12

36

Virtual Bacterial Identification Lab  

NSDL National Science Digital Library

The purpose of the lab is to familiarize you with the science and techniques used to identify different types of bacteria based on their DNA sequence. Not long ago, DNA sequencing was a time-consuming, tedious process. With readily available commercial equipment and kits, it is now routine. The techniques used in this lab are applicable in a wide variety of settings, including scientific research and forensic labs.

Joseph Perpich, M.D., J.D. (Howard Hughes Medical Institute;)

2008-04-16

37

Virtual Biology Labs  

NSDL National Science Digital Library

This Rutgers University Web site contains a set of online biology labs each so detailed and comprehensive, they could nearly replace the real thing. Each virtual lab contains pages and pages of background information and procedures, helpful images and diagrams, online exercises, and more. Seven labs are currently available: Cell Structure, Cell Reproduction, Protists, Plant Evolution, Angiosperm Reproduction, Transport Systems in Plants, and Chromosome Structure and Meiosis.

38

Computer Lab Configuration.  

ERIC Educational Resources Information Center

|Describes the layout and elements of an effective school computer lab. Includes configuration, storage spaces, cabling and electrical requirements, lighting, furniture, and computer hardware and peripherals. (PKP)|

Wodarz, Nan

2003-01-01

39

LabSkills  

ERIC Educational Resources Information Center

|This article describes LabSkills, a revolutionary teaching tool to improve practical science in schools. LabSkills offers the chance to help improve the exposure that the average Key Stage 5 (age 16-19) student has to practical work. This is a huge area for development being highlighted by universities who are seeing a worryingly growing trend in…

O'Brien, Nick

2010-01-01

40

Bacterial Transformation Lab  

NSDL National Science Digital Library

The "glowing genes" activity on this engaging website shows students the process of bacterial transformation, a specific type of genetic engineering. This online activity supplements a hands-on lab at the Dolan DNA Learning Center's Harlem DNA Lab, in which plasmids, or tiny loops of DNA that contain genes, are inserted into a harmless strain of E.coli.

Dolan DNA Learning Center * (Dolan DNA Learning Center;)

2010-05-27

41

Cornell Lab of Ornithology  

NSDL National Science Digital Library

New research from the Cornell Lab of Ornithology points to acid rain as a major cause of songbird decline, where previous research focused on forest fragmentation. Along with a press release and a downloadable Adobe Acrobat (.pdf) version of the entire study, the site includes other ornithological resources, news items, and information about the lab.

2000-01-01

42

A clandestine lab  

NSDL National Science Digital Library

Some people illegally store clandestine, or hidden, labs in their homes for making drugs. These labs are extremely dangerous because the makers are working with flammable and explosive elements that are sensitive to light, heat, etc. The makers generally have little knowledge about the chemicals they are using.

N/A N/A (DEA;)

2006-04-01

43

Limpet Identification Lab  

NSDL National Science Digital Library

Lesson plan to study new life forms and to develop distinguishing or key characteristics to aid in the study of life. Using limpets as an unidentified specimen, students are asked to develop identifying characteristics and share them across the lab groups. Includes lab extensions and alternate plans according to academic level.

44

Flower Dissection Lab  

NSDL National Science Digital Library

From Fairchild Tropical Botanic Garden, this site presents a simple Flower Dissection Lab using orchids and composite flowers. This pdf document contains the materials needed and instructions for the lab, as well as a worksheet for students to complete as they dissect their flower.

2007-12-27

45

A Museum Learning Lab  

ERIC Educational Resources Information Center

|The "Learning Lab: The Cell" exhibit was developed by the Massachusetts Institute of Technology (MIT) Museum and the MIT Center for Environmental Health Sciences (CEHS). Specially designed for middle and high school students, the Learning Lab provides museum visitors of all ages with fascinating insights into how our living cells work. The…

Vandiver, Kathleen M.; Bijur, Jon Markowitz; Epstein, Ari W.; Rosenthal, Beryl; Stidsen, Don

2008-01-01

46

UVA Virtual Lab  

NSDL National Science Digital Library

The Virtual Lab, developed by the University of Virginia, provides visual representation of the scientific principles we encounter daily. Mini labs allow visitors to learn about different properties of physics, chemistry and technology. The Electricity and Magnetism Lab introduces concepts like basic charge attraction and repulsion and magnetic induction. Units on semiconductors, circuits, nanoscience and scientific instruments are also available in the Virtual Lab. The UVA is also beginning to convert presentations from the website into narrated Podcasts, which are available from the homepage. This is a great resource to incorporate into the classroom as the labs are very informative, easy to follow, and would aid students in visualizing the scientific concepts they are learning.

2007-04-17

47

MIT Media Lab  

NSDL National Science Digital Library

The idea for the MIT Media Lab came out of work at the school's Architecture Machine group, and it formally opened the doors of its new building designed by I.M. Pei in 1985. In the Media Lab's first decade of operation, they worked on electronic music projects, holography, and cognition. Since then they have researched wireless communications, new forms of artistic expression, and so on. Interested parties will enjoy wandering their website, which includes sections on "Research", "People", "Events", and "News". The "LabCAST" area shouldn't be missed, and here visitors can watch video profiles of the latest work at the Media Lab. Recent profiles have looked at ways to use mobile phones to detect vision problems and new ways of reinventing the desk lamp. In the "Research" area, visitors can learn about the different groups and projects at the Media Lab, and also look over their publications.

48

Bacterial Transformation Lab  

NSDL National Science Digital Library

This PDF, part of the classroom activities site by Biotechnology Education and Training Sequence Investment (BETSI), introduces the concept of recombinant DNA and a process called transformation. Here, instructors will find detailed lab instructions/diagrams that trace out the introduction of a recombinant plasmid into a foreign bacteria resulting in the "change of the bacteria's genetic make-up and traits." With the end result of the lab being a product that "glow[s] bright green," this will be a fun lab for any chemistry or biochemistry classroom. The site even playfully boasts, "[that] you will all be genetics engineers" by the end of this experiment!

2008-12-10

49

Physics Labs with Flavor  

NASA Astrophysics Data System (ADS)

This paper describes my attempts to look deeper into the so-called ``shoot for your grade'' labs, started in the '90s, when I began applying my teaching experience in Russia to introductory physics labs at the College of Charleston and other higher education institutions in South Carolina. The term ``shoot for your grade'' became popular among teachers of a projectile motion lab where students are graded based on their ability to predict the range of the projectile. I describe here several additional laboratory exercises in which students are required to predict results of the experiment. I also discuss an essential element of these exercises which I call ``recurrent study.''

Agrest, Mikhail M.

2009-05-01

50

National Lab Day  

NSDL National Science Digital Library

NSF joins other partners in National Lab Day, an initiative connecting science, technology, engineering and mathematics (STEM) teachers with STEM professionals who volunteer to share their expertise--and their passion--for science and engineering with students. You can view video clips that explain the basics of what National Lab Day is and how it works, get tips from a professional educator about how to effectively help in the classroom and learn about some NSF-funded projects that already are conducting activities in the spirit of Lab Day.

51

Using Indoor Labs  

NSDL National Science Digital Library

Written by Mary Savina of Carleton College "Science labs can be among the richest experiences students have at the university. It is one of the few opportunities students will have to practice science much in ...

Savina, Mary

52

Writing Better Lab Reports  

NSDL National Science Digital Library

As science teachers at a suburban California high school, the authors were concerned about the lab report conclusions written by their upper-level chemistry, biology, and ecology students--which were consistently of poor quality. Their work lacked inferenc

Sutherland, Alex; Royston, Ann; Brydon, Barbara; Passmore, Cynthia; Painter, Heidi; Robb, Jeanine

2010-01-01

53

The Mixtures Lab  

NSDL National Science Digital Library

The representation illustrates the separation of mixtures using physical properties. The interactive simulation allows "lab attendants" to separate mixtures using virtual tools. Separation mechanisms are chosen based upon substances' physical properties, and findings are recorded in a chart.

54

EarthLabs  

NSDL National Science Digital Library

EarthLabs is a collection of challenging, lab-based high school Earth science curriculum units, each of which integrates text, hands-on activities, interactive visualizations, video, authentic science data, and data visualization and analysis tools. Each unit highlights the interconnectedness and complexities of the Earth system in the context of a specific content area (including Earth system science, climate, weather, atmosphere, cryosphere, environmental science, hurricanes, drought, fisheries, oceans, carbon cycle), and can be integrated into an existing Earth or environmental science course or used as an independent curriculum unit. In addition to the student portal, EarthLabs provides a separate teacher's guide ("EarthLabs for Educators") that provides background and logistical information, pedagogical guidance, and answers to assessments embedded in the student portal.

2012-05-31

55

EarthLabs  

NSDL National Science Digital Library

EarthLabs is a collection of challenging, lab-based high school Earth science curriculum units, each of which integrates text, hands-on activities, interactive visualizations, video, authentic science data, and data visualization and analysis tools. Each unit highlights the interconnectedness and complexities of the Earth system in the context of a specific content area (including Earth system science, climate, weather, atmosphere, cryosphere, environmental science, hurricanes, drought, fisheries, oceans, carbon cycle), and can be integrated into an existing Earth or environmental science course or used as an independent curriculum unit. In addition to the student portal, EarthLabs provides a separate teacher's guide ("EarthLabs for Educators") that provides background and logistical information, pedagogical guidance, and answers to assessments embedded in the student portal.

56

NI LabVIEW  

NSDL National Science Digital Library

LabVIEW is a graphical programming environment used to develop measurement, test, and control systems using graphical icons and wires. The program is used for a wide range of applications in industry and the laboratory.

2003-10-10

57

Lab 6 winding facility  

SciTech Connect

This note describes the winding machine installed by the facility support group at lab 6 in the Fermilab village. It is available for use by outside users and groups within the lab. The machine can wind wire planes whose longest dimension is less than 10 feet. The Wire spacing range has an upper practical limit of about 5mm. Spacing beyond this requires a very long index time and therefore slows down the winding speed prohibitively.

Guerra, J.; Hansen, S.; Mangene, C.

1983-02-02

58

Dauphin Island Sea Lab  

NSDL National Science Digital Library

Dauphin Island Sea Lab is Alabama's marine education and research center. Lab also provides a public aquarium that focuses solely on the native eco-systems of the Mobile Bay estuary. Site provides information on graduate programs, undergraduate opportunities, faculty, facilities, and news and events. Explore the Education and Aquarium sections for teacher resources and information on workshops, student summer camps, and academic-year programs.

59

Making Real Virtual Labs  

Microsoft Academic Search

Francis Bacon began defining scientific methodology in the early 17th century, and secondary school science classes began to implement science labs in the mid-19th century. By the early 20th century, leading educators were suggesting that science labs be used to develop scientific thinking habits in young students, and at the beginning of the 21st century, educators are still seeking to

Harry E. Keller; Edward E. Keller

2005-01-01

60

An innovative high-power constant-current pulsed-arc power-supply for a high-density pulsed-arc-plasma ion-source using a LaB6-filament  

NASA Astrophysics Data System (ADS)

An innovative high-power constant-current (CC) pulsed-arc (PA) power-supply (PS) indispensable for a high-density PA plasma ion-source using a lanthanum hexaboride (LaB6) filament was devised by combining a constant-voltage (CV) PA-PS, which is composed of an insulated gate bipolar transistor (IGBT) switch, a CV direct-current (dc) PS and a 270 mF capacitor with a CC-PA-PS, which is composed of an IGBT-switch, a CC-dc-PS and a 400 ?H inductor, through the inductor. The hybrid-CC-PA-PS succeeded in producing a flat arc-pulse with a peak power of 56 kW (400 A×140 V) and a duty factor of more than 1.5% (600 ?s×25 Hz) for Japan Proton Accelerator Research Complex (J-PARC) H- ion-source stably. It also succeeded in shortening the 99% rising-time of the arc-pulse-current to about 20 ?s and tilting up or down the arc-pulse-current arbitrarily and almost linearly by changing the setting voltage of its CV-dc-PS.

Ueno, A.; Oguri, H.; Ikegami, K.; Namekawa, Y.; Ohkoshi, K.; Tokuchi, A.

2010-02-01

61

An innovative high-power constant-current pulsed-arc power-supply for a high-density pulsed-arc-plasma ion-source using a LaB6-filament.  

PubMed

An innovative high-power constant-current (CC) pulsed-arc (PA) power-supply (PS) indispensable for a high-density PA plasma ion-source using a lanthanum hexaboride (LaB(6)) filament was devised by combining a constant-voltage (CV) PA-PS, which is composed of an insulated gate bipolar transistor (IGBT) switch, a CV direct-current (dc) PS and a 270 mF capacitor with a CC-PA-PS, which is composed of an IGBT-switch, a CC-dc-PS and a 400 microH inductor, through the inductor. The hybrid-CC-PA-PS succeeded in producing a flat arc-pulse with a peak power of 56 kW (400 A x 140 V) and a duty factor of more than 1.5% (600 micros x 25 Hz) for Japan Proton Accelerator Research Complex (J-PARC) H(-) ion-source stably. It also succeeded in shortening the 99% rising-time of the arc-pulse-current to about 20 micros and tilting up or down the arc-pulse-current arbitrarily and almost linearly by changing the setting voltage of its CV-dc-PS. PMID:20192388

Ueno, A; Oguri, H; Ikegami, K; Namekawa, Y; Ohkoshi, K; Tokuchi, A

2010-02-01

62

Remote Lab Effectiveness Assessment Model  

Microsoft Academic Search

This study discusses current attempts to model the effectiveness assessment of distant labs. Distant labs, specifically remote labs (RL), are systems which are accessed through a web browser, which allow users from all over the world, anytime to perform the experiments with real devices. They increase teaching efficiency, provide time and money savings. Consequently, remote lab effectiveness influence the course

G. Tokdemir; S. Bilgen

2008-01-01

63

Labs of the World, Unite  

Microsoft Academic Search

Abstract: eScience is rapidly changing the way we do ,re- search. As a result, many research labs now need non- trivial computational power. Grid and voluntary computing are well established solutions for this issue. However, not all labs can effectively benefit from these technologies. In particular, small and medium research labs (which are the majority of the labs in the

Walfredo Cirne; Francisco Vilar Brasileiro; Nazareno Andrade; Lauro B. Costa; Alisson Andrade; Reynaldo Novaes; Miranda Mowbray

2006-01-01

64

USC: The Interaction Lab  

NSDL National Science Digital Library

The Interaction Lab at the University of Southern California is part of the Center for Robotics and Embedded Systems (CRES) and the USC Robotics Labs. Its work involves "using a behavior-based approach to control, favoring solutions that are distributed, scalable, and robust" and when possible, validating algorithms in embodied domains. Areas of study include: Multi-Robot Coordination and Learning, Humanoid Robot Control and Learning, Learning by Imitation, Assistive Human-Robot Interaction, and Activity Modeling. The website provides short descriptions and research goals for each of these areas and related projects. Several publications and videos resulting from these projects are also posted online. The "fun" section offers a glimpse of the good times shared by the lab researchers.

65

Poverty Action Lab  

NSDL National Science Digital Library

Many laboratories focus their attention on topics like Alzheimer's research, but this laboratory at MIT focuses on poverty. The objective of their work at the Poverty Action Lab is "to improve the effectiveness of poverty programs by providing policy makers with clear scientific results that help shape successful polices to combat poverty." The Lab was started in June 2003 by a group of professors at MIT and their collaborators. Visitors to the site will note that the materials here are divided into sections that include "Research", "People", "News", and "Courses". The "Research" section is a great place to start as policy makers and others can look over their completed projects (such as "Discrimination in the Job Market") and their publications. Moving on, visitors can click on the "People" section to learn more about their staff and directors. Finally, those who are curious about the reach of the Poverty Lab's work will want to look at their media features in the "News" section.

66

LCOGT Imaging Lab  

NASA Astrophysics Data System (ADS)

The Las Cumbres Observatory Global Telescope Network (LCOGT) is an ambitious project to build and operate, within 5 years, a worldwide robotic network of 50 0.4, 1, and 2 m telescopes sharing identical instrumentation and optimized for precision photometry of time-varying sources. The telescopes, instrumentation, and software are all developed in house with two 2 m telescopes already installed. The LCOGT Imaging Lab is responsible for assembly and characterization of the network's cameras and instrumentation. In addition to a fully equipped CNC machine shop, two electronics labs, and a future optics lab, the Imaging Lab is designed from the ground up to be a superb environment for bare detectors, precision filters, and assembled instruments. At the heart of the lab is an ISO class 5 cleanroom with full ionization. Surrounding this, the class 7 main lab houses equipment for detector characterization including QE and CTE, and equipment for measuring transmission and reflection of optics. Although the first science cameras installed, two TEC cooled e2v 42-40 deep depletion based units and two CryoTiger cooled Fairchild Imaging CCD486-BI based units, are from outside manufacturers, their 18 position filter wheels and the remainder of the network's science cameras, controllers, and instrumentation will be built in house. Currently being designed, the first generation LCOGT cameras for the network's 1 m telescopes use existing CCD486-BI devices and an in-house controller. Additionally, the controller uses digital signal processing to optimize readout noise vs. speed, and all instrumentation uses embedded microprocessors for communication over ethernet.

Tufts, Joseph R.; Lobdill, Rich; Haldeman, Benjamin J.; Haynes, Rachel; Hawkins, Eric; Burleson, Ben; Jahng, David

2008-08-01

67

Jefferson Lab: Science Education  

NSDL National Science Digital Library

Jefferson Lab carries out its long-term commitment to science education by providing a host of teacher resources, games, and science lessons. Students can find a periodic table offering physical characteristics and information on the history and uses of each element. The Student Zone contains a virtual lab tour, glossary of scientific terms, and materials on internships. Teachers can locate pdf downloads of many hands-on activities on many science subjects such as microscopes, magnets, and measuring. The website introduces educational events and educational programs for both teachers and students.

68

Greenhouse Effect Lab  

NSDL National Science Digital Library

In this simple lab, students collect data to demonstrate basic atmospheric science concepts. Groups of students measure the effect of carbon dioxide on temperature using soda bottles with thermometers inserted. One bottle is filled with air and capped. The second bottle is filled with carbon dioxide using a specific procedure. To conduct the experiment, both bottles are placed under a lamp while students record the increase in temperature over five minutes. The bottle containing carbon dioxide has a greater increase in temperature than the bottle containing air. This lab demonstrates the fundamental concept that underlies climate change science by providing data that are easy for students to interpret.

Larsen, Krista

69

Nanotechnology Lab Visit  

NSDL National Science Digital Library

Teachers' Domain presents this video as part of a series on advanced technological education. This segment shows what goes on in a nanofabrication lab, as well as the basics of the nanotechnology industry. The top-down fabrication process of photolithography is shown, as well as the protective measures required to work in a nanofabrication lab. The video may be viewed online or downloaded. To download the clip, users must create a free login for Teachers' Domain. Running time for this Quick Time video is 3:53. Educators will also find a background essay, discussion questions, and standards alignment for the material.

2010-09-30

70

UC Berkeley Lab Notes  

NSDL National Science Digital Library

The University of California at Berkeley College of Engineering publishes Lab Notes, a newsletter from the Public Affairs Office. The mission is "to illuminate groundbreaking research underway today at the College of Engineering that will dramatically change our lives tomorrow." Lab Notes is available online free of charge. Articles in the November 2004 issue highlight robot technology, satellite communications, and a radio observatory project. Each short article includes images or videos and links to related articles and researchers' websites. Previous issues are saved in an online archive.

71

Serial Dilution Simulation Lab  

ERIC Educational Resources Information Center

|Serial dilution is often a difficult concept for students to understand. In this short dry lab exercise, students perform serial dilutions using seed beads. This exercise helps students gain skill at performing dilutions without using reagents, bacterial cultures, or viral cultures, while being able to visualize the process.|

Keler, Cynthia; Balutis, Tabitha; Bergen, Kim; Laudenslager, Bryanna; Rubino, Deanna

2010-01-01

72

STAT LABS: Data  

NSDL National Science Digital Library

These datasets come from the book "STAT LABS: Mathematical Statistics Through Applications." Below the link for each dataset are descriptions of the variables for that dataset. Datasets are in text format and address topics such as maternal smoking and infant health, video games, radon, cytomegalovirus DNA, HIV, crab molting, voting, snow gauge calibration, down syndrome, and tape drive quality.

Nolan, Deb; Speed, Terry

2009-01-20

73

A "Canned" Computer Lab  

ERIC Educational Resources Information Center

Discusses the use of a set of computer programs (FORTRAN IV) in an introductory mechanics course for science majors. One laboratory activity is described for determining the coefficient of restitution of a glider on an air track. A student evaluation for the lab is included in the appendix. (Author/TS)

Dowling, John, Jr.

1972-01-01

74

Elemental Chem Lab  

ERIC Educational Resources Information Center

|This educative material uses the symbols of 45 elements to spell the names of 32 types of laboratory equipment usually found in chemical labs. This teaching material has been divided into three puzzles according to the type of the laboratory equipment: (i) glassware as reaction vessels or containers; (ii) glassware for measuring, addition or…

Franco Mariscal, Antonio Joaquin

2008-01-01

75

TOPS Biology Labs  

NSDL National Science Digital Library

Several advanced labs on key topics such as Drosophila genetics and photosynthesis help bridge the gap between current biology and chemistry curricula. Designed to integrate easily into the high school curriculum, the experiments employ commercially available data analysis software as well as technologies used in research laboratories.

Chris L.Craney (Program Director) Occidental College faculty and high school teachers in the TOPS program (Occidental College;)

2010-06-18

76

Lab 3: Land Ice  

NSDL National Science Digital Library

In the first part of this lab, students learn about land ice and the processes and timescales involved in glaciation. In Part B, they use an online interactive to explore how glaciers provide scientists with evidence for climate change. Finally, students use image processing software to measure how much area a real glacier has lost over time due to rising temperatures.

77

Fault rocks lab  

NSDL National Science Digital Library

This lab is intended to give students some hands on experience looking at fault rocks with a suite of cataclasites and mylonites I have collected. The focus is on identifying key textural features in both hand sample and thin section and understanding how deformation within a fault zone varies with depth.

Singleton, John

78

Virtual Cardiology Lab  

NSDL National Science Digital Library

The focus of this lab is on heritable diseases of the heart. You are cast here as a virtual intern to accompany a doctor examining three different patients. Each patient is examined, using more than one diagnostic tool, and at each stage, the doctor will invite you to examine the patient yourself and ask for your opinion.

Joseph Perpich, M.D., J.D. (Howard Hughes Medical Institute;)

2008-04-16

79

Lab 3 - Advanced VHDL  

NSDL National Science Digital Library

This lab activity from the Digital Logic Project demonstrates many advanced VHDL techniques and how they can be used to your advantage to create efficient VHDL code. Topics include operator balancing, resource sharing, preventing unwanted latches, and state machine encoding schemes.

2012-07-10

80

The Crime Lab Project.  

ERIC Educational Resources Information Center

|Describes the Crime Lab Project, which takes an economical, hands-on, interdisciplinary approach to studying the career of forensics in the middle or high school classroom. Includes step-by-step student requirements for the investigative procedure, a sample evidence request form, and an assessment rubric. (KHR)|

Hein, Annamae J.

2003-01-01

81

A Big Bang Lab  

ERIC Educational Resources Information Center

The February 2005 issue of The Science Teacher (TST) reminded everyone that by learning how scientists study stars, students gain an understanding of how science measures things that can not be set up in lab, either because they are too big, too far away, or happened in a very distant past. The authors of "How Far are the Stars?" show how the…

Scheider, Walter

2005-01-01

82

A Big Bang Lab  

ERIC Educational Resources Information Center

|The February 2005 issue of The Science Teacher (TST) reminded everyone that by learning how scientists study stars, students gain an understanding of how science measures things that can not be set up in lab, either because they are too big, too far away, or happened in a very distant past. The authors of "How Far are the Stars?" show how the…

Scheider, Walter

2005-01-01

83

Inside Linden Lab  

ERIC Educational Resources Information Center

|In this article, the author provides an overview of Second Life[trademark], or simply SL, which was developed at Linden Lab, a San Francisco-based corporation. SL is an online society within a threee-dimensional virtual world entirely built and owned by its residents, where they can explore, build, socialize and participate in their own economy.…

Atkinson, Tom

2008-01-01

84

Modifying Cookbook Labs.  

ERIC Educational Resources Information Center

|Modifies an extended lab activity from a cookbook approach for determining the percent mass of water in copper sulfate pentahydrate crystals to one which incorporates students' prior knowledge, engenders active mental struggling with prior knowledge and new experiences, and encourages metacognition. (Contains 12 references.) (ASK)|

Clark, Robert, L.; Clough, Michael P.; Berg, Craig A.

2000-01-01

85

Crater Counting Lab exercise  

NSDL National Science Digital Library

This lab focuses on the identification of impact features, and how they can used to estimate the age of planetary surfaces. Key comcepts include understanding how the crater process has changed over geologic time; how those changes manifest themselves in the surficial record of planetary landforms; how other planetary processes modify surficial landforms; how the conditions of the Solar System have changed over time.

Mullins, Kevin

86

caNanoLab  

Cancer.gov

QUICK LINKS NCI caNanoLab Wiki NCI CBIIT Home NCL Home NCL CSN Home NCI Nano Alliance Home NCI Home EXTERNAL  Disclaimer NBI NIOSH NIL InterNano nanoHUB ICON SAFENANO HOME PROTOCOLS SAMPLES PUBLICATIONS HELP GLOSSARY LOGIN Basic Sample Search Advanced

87

caNanoLab  

Cancer.gov

QUICK LINKS NCI caNanoLab Wiki NCI CBIIT Home NCL Home NCL CSN Home NCI Nano Alliance Home NCI Home EXTERNAL  Disclaimer NBI NIOSH NIL InterNano nanoHUB ICON SAFENANO HOME PROTOCOLS SAMPLES PUBLICATIONS HELP GLOSSARY LOGIN Search Publications Help

88

Writing Better Lab Reports  

ERIC Educational Resources Information Center

|As science teachers at a suburban California high school, the authors were concerned about the lab report conclusions written by their upper-level chemistry, biology, and ecology students--which were consistently of poor quality. Their work lacked inferences derived from data and support for their concluding statements. Working as part of a…

Porter, Rhiannon; Guarienti, Kristy; Brydon, Barbara; Robb, Jeanine; Royston, Ann; Painter, Heidi; Sutherland, Alex; Passmore, Cynthia; Smith, Martin H.

2010-01-01

89

Algebra Lab: Inverse Variation  

NSDL National Science Digital Library

This lesson from Algebra Lab demonstrates "how to write equations of quantities which vary inversely." The lesson includes an example of a graph of this type of equation, and several example problems. This supporting material would be best used following some in-class instruction explaining how to solve inverse variation equations.

2012-01-01

90

Mississippi State Physics Labs: Graphs  

NSDL National Science Digital Library

This inquiry-based lab for introductory physics courses explores the purpose of graphs. Students measure simple circular objects and blocks, graph the data, and look for relationships in the graphs. The lab was designed to help students discover the advantage of using graphical representations to understand numerical relationships. This material is part of a larger collection of introductory physics labs.

Ferguson, Joe; Denson, Jack

2008-09-08

91

Science Sampler: Lab report blues  

NSDL National Science Digital Library

For middle school students, writing a formal lab report can be challenging. For middle level teachers, reading students' lab reports can be overwhelming. As a solution, why not try peer editing? By having students critique each other in a constructive, nonverbal manner, they will be able to produce better lab reports while simultaneously engaging in the process of scientific inquiry.

Diaz, Andrew

2004-10-01

92

Physics Labs with Flavor II  

NASA Astrophysics Data System (ADS)

This paper was inspired by the numerous requests from TPT readers to expand the number of examples of ``recurrent study'' lab exercises described in my previous paper ``Physics Labs with Flavor.''1 I recommend that readers examine it first in order to better understand this one as my attempt here is to be brief. In that paper, one can find details that are not included in this paper; here I aim to present how the essence of the recurrent method is applied to different labs. The examples used in this paper are based on the labs traditionally offered in lab manuals2-4 commonly used for introductory physics courses.

Agrest, Mikhail M.

2011-05-01

93

The LabWrite Project: Experiences reforming lab report writing practice in undergraduate lab courses  

Microsoft Academic Search

Laboratory reports have always been a part of the modern science and engineering curricula. However, it has also often been the least liked part of a students' (and instructors') laboratory experience. Despite research demonstrating the importance of lab reports to the undergraduate science and engineering lab experience, instructors are likely to minimize their use. Lab reports have been replaced with

Eric N. Wiebe; Catherine E. Brawner; Michael Carter; Miriam G. Ferzli

2005-01-01

94

ChemLab  

NSDL National Science Digital Library

Dartmouth College's introductory chemistry course program has a Web site that is worth a look by students and professors of chemistry at other institutions. Visitors to the site can ignore the exam and grading sections and head straight to the Java applets. With these nine, nifty mini-tutorials, students can create a custom periodic table, play fill-in-the-blank periodic table puzzles, run virtual labs on anions and cations, construct a visible spectrum, practice least-squares regressions, and much more. Visitors to the site will also find the "Chemistry and Background" portions of the online laboratory manuals (filed under Chem 3/5 and Chem 6) useful and also should review the section on how and why to keep a chemistry lab notebook.

1997-01-01

95

Human Chromosome Spread Lab  

NSDL National Science Digital Library

The Biotechnology Education & Training Sequence Investment (BETSI) Project was established in 2004, funded by a National Science Foundation (NSF) Advanced Technological Education (ATE) grant and built on the foundation of the Southwestern College Biotechnology Program. The BETSI Project was designed as "an educational cascade that starts with high school teacher training and student outreach, followed by the completion of the SWC Biotechnology Certification Program and internship opportunities, culminating with facilitation of jobs in the biotechnology industry." The BETSI Project has made several classroom activities available online including the activity featured here, "Human Chromosome Lab Procedures". This activity includes a basic introduction, a materials list, background information, procedures (step-by-step and including illustrations), and a results area. This exercise should prove useful to any educator interested in Human Chromosome instruction and lab activities.

2008-01-01

96

Digital Scholarship Lab  

NSDL National Science Digital Library

Based at the University of Richmond, the Digital Scholarship Lab develops "innovative digital humanities projects that contribute to research and teaching at and beyond the University of Richmond." On the website, visitors can learn about ongoing projects, publications, and the Lab's team of dedicated professionals. The Projects section is quite remarkable, as it contains seven unique projects, including Visualizing Emancipation, Hidden Patterns of the Civil War, and Mining the Dispatch. This last project is fantastic, exploring "the dramatic and often traumatic changes in the social and political life of Civil War Richmond" through the articles of the Richmond Daily Dispatch. There are also several Mini-Projects, which include a meditation on Pac-Man and the fascinating Americans in Paris. The Publications and Presentations area includes links to presentations given by staff members, along with commentaries and the like. The site is rounded out by the News area and an About area which provides details on the staff.

2013-01-15

97

Political Communications Lab  

NSDL National Science Digital Library

How do polls of public opinion and political behavior work exactly? Well, it's definitely a complex answer, and when you add the mix of how exactly these polls work when done in a less "traditional" fashion, such as with the Internet, things get even more complicated. Part of the mission of the Political Communication Lab at Stanford University is "to develop and administer experimental studies of public opinion and political behavior through the use of both on-line and traditional methods". The site is a rather fascinating one, as it contains a number of informative areas on work at the Lab and on the current presidential election campaign. One of the group's projects that is worth a look is the Voter Attention Share project, in which the Lab is tracking the total number of daily references to key election issues across national TV newscasts and the 80 most widely read daily newspapers from June 1 to Election Day. Visitors can also read about the group's other projects and listen to a talk on online polling by Professors James Fishkin and Shanto Iyengar.

98

5 Pre-Lab and Lab Activities for Newtonian Mechanics  

NASA Astrophysics Data System (ADS)

Key to success of a lab activity is the student's prerequisite skills. This workshop focuses on 5 pre-lab white board activities with the corresponding lab activities in Newtonian mechanics utilizing the GMLAD. The activities will cover projectile motion; kinematics, Newton's 2nd Law, Determination of Friction and its Coefficient, Conservation of Energy, Determination of the Spring Constant, and Conservation of Momentum in 2 Dimensions. Limited to 24 participants - 2 hours - Cost 5.00

Mangold, James

2010-03-01

99

Introducing ADS Labs  

NASA Astrophysics Data System (ADS)

ADS Labs is a platform that ADS is introducing in order to test and receive feedback from the community on new technologies and prototype services. Currently, ADS Labs features a new interface for abstract searches, faceted filtering of results, visualization of co-authorship networks, article-level recommendations, and a full-text search service. The streamlined abstract search interface provides a simple, one-box search with options for ranking results based on a paper relevancy, freshness, number of citations, and downloads. In addition, it provides advanced rankings based on collaborative filtering techniques. The faceted filtering interface allows users to narrow search results based on a particular property or set of properties ("facets"), allowing users to manage large lists and explore the relationship between them. For any set or sub-set of records, the co-authorship network can be visualized in an interactive way, offering a view of the distribution of contributors and their inter-relationships. This provides an immediate way to detect groups and collaborations involved in a particular research field. For a majority of papers in Astronomy, our new interface will provide a list of related articles of potential interest. The recommendations are based on a number of factors, including text similarity, citations, and co-readership information. The new full-text search interface allows users to find all instances of particular words or phrases in the body of the articles in our full-text archive. This includes all of the scanned literature in ADS as well as a select portion of the current astronomical literature, including ApJ, ApJS, AJ, MNRAS, PASP, A&A, and soon additional content from Springer journals. Fulltext search results include a list of the matching papers as well as a list of "snippets" of text highlighting the context in which the search terms were found. ADS Labs is available at http://adslabs.org

Accomazzi, Alberto; Henneken, E.; Grant, C. S.; Kurtz, M. J.; Di Milia, G.; Luker, J.; Thompson, D. M.; Bohlen, E.; Murray, S. S.

2011-05-01

100

Lab 5: Gone Fishing  

NSDL National Science Digital Library

This lab activity introduces students to overfishing, using Georges Bank groundfish as a case study. In Part A, students learn about overfishing by examining trends in annual haddock landings and mortality in Georges Bank from 1969-2004. In Part B, they learn about what it means for a species to be overfished by examining trends in Georges Bank Atlantic cod recruitments and biomass from 1978-2004. In Part C, students explore whether or not it is possible to reverse the effects of overfishing through ecosystem and fisheries management.

101

Signal Compression Lab  

NSDL National Science Digital Library

The Signal Compression Lab (SCL) is a part of the Electrical and Computer Engineering Department at the University of California, Santa Barbara. "Current research activities at SCL include low bit rate speech coding, wideband speech and audio compression, speech modeling and synthesis," and many more focus areas involving data compression of various forms of media. A large collection of informative demonstrations and slide presentations illustrate the group's work. Many of the SCL staff have publications available for downloading, which are divided into several categories for easy browsing.

2001-01-01

102

Engineering Media Lab  

NSDL National Science Digital Library

The Engineering Media Lab at the University of Oklahoma (OU) is an outstanding resource for engineering students taking introductory courses in statics or dynamics. Although the database of homework and exam problems is only available to OU students, the most valuable materials are open to the general public. Online books and lectures guide users through concepts such as three-dimensional motion, friction, and vibration. The eBooks include multimedia animations to illustrate the effects of different forces on objects and rigid bodies.

103

Annenberg Media: Teachers' Lab  

NSDL National Science Digital Library

This small collection from Learner.org provides a unique digital lab for teachers to explore new ideas in learning. The activities are designed around four strands: patterns in mathematics, seasonal changes and moon phases, geometry, and the nature of light. Each section features interactive exercises to challenge teachers' thinking about logic, pattern recognition, shape and structure, symbolic relationships, and mathematical reasoning. The authors then delve into the learning theory behind the activities and how it can be extended to learners of different ages and abilities. Each module provides links to hands-on activities for the classroom.

2012-11-30

104

Adapting Labs and Troubleshooting  

NSDL National Science Digital Library

A great deal of information is available on how children learn--brain research, multiple intelligence aspects, concrete versus abstract thinking, environmental stimuli, and so on--but one key feature can be gleaned from all of the studies, and that is the importance of hands-on learning. No matter what method students use to garner information, the learning process can be augmented with the inclusion of labs, activities, or simulations that mimic real-life experiences. This is especially true in the middle school science classroom.

2003-01-01

105

Plymouth Wave Lab  

NSDL National Science Digital Library

The Plymouth Wave Lab is a series of movies of waves on a string intended for middle school students. The reference material at the site explains the relationship between the behavior of the string in the six examples and the behavior of a tsunami. The December 26, 2004 tsunami that was generated from the M9.0 Sumatra earthquake has raised public awareness worldwide of the disastrous consequences of tsunami waves. Thus the Marine Seismology and Geoacoustics Group of the Woods Hole Oceanographic Institute offers, within the context of a middle school curriculum on waves, five lessons that can be learned from tsunamis.

106

Advanced LabVIEW Labs; Physics Today (review).  

National Technical Information Service (NTIS)

There have been approximately fifteen books concerning LabVIEW, but Professor Essick's treatise takes on a completely different tack than all of the previous discussions. LabVIEW is written in 'G' a graphical programming language developed by National Ins...

E. D. Jones

1999-01-01

107

Lab at Home: Hardware Kits for a Digital Design Lab  

ERIC Educational Resources Information Center

|An innovative laboratory methodology for an introductory digital design course is presented. Instead of having traditional lab experiences, where students have to come to school classrooms, a "lab at home" concept is proposed. Students perform real experiments in their own homes, using hardware kits specially developed for this purpose. They…

Oliver, J. P.; Haim, F.

2009-01-01

108

Iceland Lavas Lab  

NSDL National Science Digital Library

The purpose of this exercise is to link volcanic rock petrology (hand samples and thin sections) with volcanic rock analytical data to hypothesize on crystal fractionation/accumulation control on lava composition. This lab exercise starts with thin section and hand sample sets of Iceland lavas. To the extent possible, each set has a range of lava compositions including picrites, multiply saturated basalts, and silicic lavas. Also provided is a spreadsheet table of Iceland lava chemical compositions and phenocryst compositions. During the lab, students first identify phenocryst and other phases in their sample set, and compile a table of lava mineralogy. The students then take the spreadsheet of chemical analyses and plot them according to location: Rekjaness, Askja, and Hekla, and they also plot the phenocryst compositions (phenocryst composition changes with magma evolution are ignored. Students then use the rock-derived phenocryst information and phase diagrams (looked at elsewhere in class) to decide which lavas were probably precipitating which phenocryst phases. They then draw crystal fractionation/accumulation control lines on their graphs to illustrate hypothetical controls on magma evolution. They also look at the continuity of data to decide if silicic rocks are related to the basalts by a continuum process (like crystal fractionation, e.g., Hekla) or by a non-continuum process (like partial melting of a different source rock, e.g., Askja). This exercise has proven useful in my course to strengthen the link between rock petrology and rock suite chemical variation. Without something of this sort, I have found that most students have a hard time understanding the meaning of chemical variation diagrams of an igneous suite. This lab follows a phase diagram study of igneous rocks, particulary Fo-An-Di which is most pertinent to the Iceland lavas. It also directly follows an introduction to control lines that is based on a series of Kilauea lavas (illustrated in another submission to this archive). Note that crystal fractionation and accumulation are certainly not the only processes that control these Iceland magma compositions. This exercise is illustrative only of these processes, however.

Hollocher, Kurt

109

TQM in a Computer Lab.  

ERIC Educational Resources Information Center

|At the Purdue University School of Technology (PST) at Columbus, Indiana, the Total Quality Management (TQM) philosophy was used in the computer laboratories to better meet student needs. A customer satisfaction survey was conducted to gather data on lab facilities, lab assistants, and hardware/software; other sections of the survey included…

Swanson, Dewey A.; Phillips, Julie A.

110

The Virtual Transgenic Fly Lab  

NSDL National Science Digital Library

The lab will familiarize you with the science and techniques used to make transgenic flies. Transgenic organisms, which contain DNA that is inserted experimentally, are used to study many biological processes. In this lab, you will create a transgenic fly to study circadian rhythms.

Peter J. Bruns, Ph.D. (Howard Hughes Medical Institute;)

2008-04-16

111

LifeLab  

NSDL National Science Digital Library

LifeLab is a Mac application for exploring John Conway's Game of Life and other cellular automata. CAs were first studied in the mid-1950s by Stanislaw Ulam and John von Neumann. The subject became much more widely known in 1970 when Life was described by Martin Gardner in his Scientific American column. Life is played on an arbitrary-sized grid of square cells. Each cell has two states: "dead" or "alive". The state of every cell changes from one "generation" to the next according to the states of its 8 nearest neighbors: a dead cell becomes alive (a "birth") if it has exactly 3 live neighbors; a live cell dies out if it has less than 2 or more than 3 live neighbors. The "game" of Life simply involves starting off with a pattern of live cells and watching it evolve.

Trevorrow, Andrew

112

Nomadic Research Labs  

NSDL National Science Digital Library

The Nomadic Research Labs is a small enterprise devoted to the pursuit of nomadness. It was created by Steve Roberts who has been a technomad for the past 11 years, wandering 17,000 miles around the U.S. on various versions of a computerized recumbent bicycle known first as the Winnebiko and then BEHEMOTH. The Web site offers extensive information about BEHEMOTH and its travels and the ongoing development of Microship which holds a satellite Internet connection, two Macs, onboard video production capability and more. You can also find extensive information about the growing field of technomadics -- the use of nomadic connectivity and autonomous power/control tools to render one's physical location irrelevant.

113

Virtual FlyLab  

NSDL National Science Digital Library

This site is maintained by Robert Deshamais and Gary Novak of California State University at Los Angeles. Users can play the role of a research geneticist while learning the principles of genetic inheritance. Users design matings between male and female fruit flies carrying one or more genetic mutations and then click the "mate" button. The program applies known Mendelian rules to produce offspring and then asks users to deduce the rules based on the "experimental" results. The program can demonstrate such genetic mechanisms as: Mendelian ratios for dominant/recessive traits, modifications of Mendelian ratios due to sex-linkage, monozygous lethals, or epistasis. Virtual Flylab seeks "to provide students with an experience in scientific reasoning and so does not provide information on the nature of the mutations; students must discover these for themselves". The resources at this site can serve as a supplement to a genetics lecture or lab or as a review of basic genetics.

1996-01-01

114

The Problem with Organic Chemistry Labs  

ERIC Educational Resources Information Center

|The problem with organic chemistry labs is that the educational objectives of lab instructions are often vague and seldom stated. The great majority of organic chemistry labs in American colleges and universities are based on verification experiments.|

Mohrig, Jerry R.

2004-01-01

115

Neutron Transversity at Jefferson Lab  

SciTech Connect

Nucleon transversity and single transverse spin asymmetries have been the recent focus of large efforts by both theorists and experimentalists. On-going and planned experiments from HERMES, COMPASS and RHIC are mostly on the proton or the deuteron. Presented here is a planned measurement of the neutron transversity and single target spin asymmetries at Jefferson Lab in Hall A using a transversely polarized {sup 3}He target. Also presented are the results and plans of other neutron transverse spin experiments at Jefferson Lab. Finally, the factorization for semi-inclusive DIS studies at Jefferson Lab is discussed.

Jian-Ping Chen; Xiaodong Jiang; Jen-chieh Peng; Lingyan Zhu

2005-09-07

116

Socratic Dialog-Inducing Labs  

NSDL National Science Digital Library

Designed by Richard Hake of Indiana University, Bloomington, the resource contain SDI Labs that are "guided construction" labs featuring hands-and-heads-on experiments in introductory mechanics. Their effectiveness in promoting student crossover to the the Newtonian World has been demonstrated by rigorous pre-post testing. Seven labs that are titled "Vectors, Postion and Frames of Reference;" "Introduction to Kinematics;" "Newton's First and Third Laws;" "Prelab Assignment;" "Newton's Second Law;" "Circular Motion and Frictional Forces;" "Rotational Dynamics;" "Angular Momentum;" "Newton's Second Law Revisted;" and "Newton's Laws Revisted" are included. Additionally, external references are provided.

Hake, Richard R.

2009-03-25

117

Dexloxiglumide Rotta Research Lab.  

PubMed

Dexloxiglumide, the (R)-isomer of loxiglumide, is a selective and highly potent CCK1 receptor antagonist. It is twice as potent as the racemic compound. because the anti-CCK activity is specific to the (R)-form, whereas the (S)-isomer is almost ineffective. It has been developed by Rotta Research Lab SpA for the treatment of diseases in which CCK1 receptor activity is potentially involved, including gastrointestinal motility, food intake and pancreatic disorders [218696]. Its receptor-mediated actions have been described in multiple in vitro and in vivo pharmacological systems. Results from both preclinical and clinical studies indicate that it is an effective inhibitor of gallbladder contraction, improves lower esophegal sphincter (LES) function, accelerates gastric emptying, accelerates colonic transit and significantly decreases symptoms in IBS and functional dyspepsia patients, and therefore has potential as an effective treatment for constipation-predominant IBS. functional dyspesia, constipation, LES function, gastric emptying disorders and biliary colics. Forest Laboratories has entered into an agreement with Rotta for the development and marketing of dexloxiglumide for the treatment of constipation-predominant IBS and phase III studies are currently ongoing in the US. In August 2000, Merrill Lynch expected that dexloxiglumide would not be launched until 2004 [379892], and in June 2001, predicted a US filing date in 2003 [413928]. PMID:12090734

Varga, Gábor

2002-04-01

118

ConsumerLab.com  

NSDL National Science Digital Library

It may be difficult for the average consumer to evaluate the sometimes grandiose claims that various supplements, vitamins, and other such products make on their labels and such. One way to learn about products is ConsumerLab.com, which provides independent test results and information in order to assist consumers and healthcare professionals to evaluate such products. The casual visitor will want to begin by looking over the ÂLatest Results area on the homepage, which provides some information on their recent tests on melatonin sleep supplements and other related nostrums. Visitors looking for information on specific products will want to direct their mouse to the ÂLaboratory Test Results area. Here they can look through a list of product evaluations that include nutrition bars, ginkgo biloba, and the ever-popular echinacea. The site is rounded out by a very nice area on ÂRecalls and Warnings, which (as its name suggests) includes information on recent notices posted by the Federal Trade Commission and other such agencies.

119

Frederick National Lab: Property Database  

Cancer.gov

All potential users of Frederick National Lab excess equipment are encouraged to pay close attention to the condition codes assigned to the equipment. The codes are assigned from the information provided by the previous user.

120

Virtual Labs and Virtual Worlds  

NASA Astrophysics Data System (ADS)

Virtual Labs and Virtual Worlds Coastline Community College has under development several virtual lab simulations and activities that range from biology, to language labs, to virtual discussion environments. Imagine a virtual world that students enter online, by logging onto their computer from home or anywhere they have web access. Upon entering this world they select a personalized identity represented by a digitized character (avatar) that can freely move about, interact with the environment, and communicate with other characters. In these virtual worlds, buildings, gathering places, conference rooms, labs, science rooms, and a variety of other “real world” elements are evident. When characters move about and encounter other people (players) they may freely communicate. They can examine things, manipulate objects, read signs, watch video clips, hear sounds, and jump to other locations. Goals of critical thinking, social interaction, peer collaboration, group support, and enhanced learning can be achieved in surprising new ways with this innovative approach to peer-to-peer communication in a virtual discussion world. In this presentation, short demos will be given of several online learning environments including a virtual biology lab, a marine science module, a Spanish lab, and a virtual discussion world. Coastline College has been a leader in the development of distance learning and media-based education for nearly 30 years and currently offers courses through PDA, Internet, DVD, CD-ROM, TV, and Videoconferencing technologies. Its distance learning program serves over 20,000 students every year. sponsor Jerry Meisner

Boehler, Ted

2006-12-01

121

Mississippi State Physics Labs: Circuits and Continuity  

NSDL National Science Digital Library

This item is an introductory lab that explores simple circuits. In this lab, students work cooperatively to observe, construct, and draw diagrams of simple circuits to foster understanding of the concept of continuity. The lab requires basic circuit components such as batteries, bulbs, and circuit boards. This item is part of a larger collection of online physics labs by the authors.

Ferguson, Joe; Denson, Jack

2008-07-19

122

Probiotic Spectra of Lactic Acid Bacteria (LAB)  

Microsoft Academic Search

Lactic acid bacteria (LAB) and their probio-active cellular substances exert many beneficial effects in the gastrointestinal tract. LAB prevent adherence, establishment, and replication of several enteric mucosal pathogens through several antimicrobial mechanisms. LAB also release various enzymes into the intestinal lumen and exert potential synergistic effects on digestion and alleviate symptoms of intestinal malabsoption. Consumption of LAB fermented dairy products

A. S. Naidu; W. R. Bidlack; R. A. Clemens

1999-01-01

123

LabCAST: The MIT Media Lab Video Podcast  

NSDL National Science Digital Library

The Media Lab at MIT has worked on all kinds of projects involving industrial design, nanotechnology, sturdy low-cost laptops, and so on. Their LabCAST site takes things to a new level, as visitors can check in on their latest endeavors via a set of video podcasts. The site has already won a Webby Award, and after visitors take a quick glance around, they'll see why. Currently the site has over 35 podcasts that include such titles as "The Psychology of the Guitar", "Urban Pixels", and "RoboScooter". One podcast that shouldn't be missed is "Storied Navigation". This particular podcast profiles a rather intriguing approach to constructing a story based on a collection of digital video and audio. Visitors can also elect to subscribe via RSS feed to receive new LabCASTs as they are released.

124

Transportation Engineering: Online Lab Manual  

NSDL National Science Digital Library

The University of Idaho hosts this outstanding collection of educational materials and laboratories related to transportation engineering. The topics introduced on the site are intended to supplement a junior-level course on the subject and are commonly viewed as "the most important ones that civil engineering graduates need to understand." Each chapter of the lab manual contains detailed theory and example problems. The lab exercises, however, will probably only serve to emphasize the most important concepts for students whose teachers are not directly incorporating them into the curricula.

125

LabWrite: Transforming Lab Reports from Busy Work to Meaningful Learning Opportunities  

NSDL National Science Digital Library

Lab reports are the dreaded assignments of the laboratory course. Students dislike them, because they can be tedious and time-consuming. Instructors dislike them, because they significantly increase the grading load. For this reason, lab reports are often omitted or replaced by alternatives such as responses to lab questions, fill-in-the-blank lab manual exercises, or lab quizzes. Despite its negative associations, the lab reports can help students learn how to write scientifically using an authentic scientific writing genre that allows them to formulate hypotheses, make inferences based on findings, and develop scientific arguments--cornerstones of scientific literacy. Students are also more apt to revisit the lab procedure and reflect on the experiment when writing lab reports. Reflecting on the lab in conjunction with putting the lab in their own words provides students a very effective tool for learning the science of the lab.

Wiebe, Eric; Carter, Michael; Ferzli, Miriam

2005-11-01

126

Logistics in the Computer Lab.  

ERIC Educational Resources Information Center

|Discusses ways to provide good computer laboratory facilities for elementary and secondary schools. Topics discussed include establishing the computer lab and selecting hardware; types of software; physical layout of the room; printers; networking possibilities; considerations relating to the physical environment; and scheduling methods. (LRW)|

Cowles, Jim

1989-01-01

127

Wii Remote National Instrument Lab  

NSDL National Science Digital Library

This is a YouTube video clip showing a Wii Remote controlling a large table top robotic arm. The video clip talks about how National Instruments has created Virtual Instruments coding(VIs) via LabVIEW that you can download for free and duplicate what they have done in this video demonstration.

2009-07-03

128

Lab 2 - Introduction to VHDL  

NSDL National Science Digital Library

In this lab activity from the Digital Logic Project, students design, test, and simulate a basic logic circuit using the Quartus II development software. The circuit created is a ripple-carry four-bit adder/subtractor using both behavioral and structural VHDL coding.

2012-07-10

129

Physical Therapist Assistant Fitness Lab.  

ERIC Educational Resources Information Center

|Colby Community College's (CCC) Fitness Lab was established to provide the Physical Therapist Assistant (PTA) Program with a learning laboratory in which students can practice classroom-acquired skills, while at the same time promoting the physical, emotional, social, and intellectual well-being of CCC students and staff, and community members. A…

Backstrom, Kurt; And Others

130

Communication acoustics in Bell Labs  

Microsoft Academic Search

Communication aoustics has been a central theme in Bell Labs research since its inception. Telecommunication serves human information exchange. And, humans favor spoken language as a principal mode. The atmospheric medium typically provides the link between articulation and hearing. Creation, control and detection of sound, and the human's facility for generation and perception are basic ingredients of telecommunication. Electronics technology

J. L. Flanagan

2001-01-01

131

Research Perspectives at Jefferson Lab  

SciTech Connect

The plans for upgrading the CEBAF accelerator at Jefferson Lab to 12 GeV are presented. The research program supporting that upgrade is illustrated with a few selected examples. The instrumentation under design to carry out that research program is discussed.

Kees de Jager

2005-06-05

132

Hadronic Physics at Jefferson Lab  

SciTech Connect

I describe some of the lattice QCD work in support of the hadronic physics program at Jefferson Lab. In particular, there is a strong emphasis on the determination of the excited state hadron spectrum, as well as determining the spin content of nucleons and other hadrons.

Edwards, Robert

2008-05-01

133

A Simple, Successful Capacitor Lab  

NASA Astrophysics Data System (ADS)

Capacitors are a fundamental component of modern electronics. They appear in myriad devices and in an enormous range of sizes. Although our students are taught the function and analysis of capacitors, few have the opportunity to use them in our labs.

Ennis, William

2011-05-01

134

Lab 3: Normal Climate Patterns  

NSDL National Science Digital Library

Students generate and explore a variety of graphs, charts and map images in order to better understand the concept of normal climate. Ideally, students should work in pairs on this lab. Consider assigning each student team to investigate the climate of a single region or state and then having all the teams share their results with the entire class.

135

History of Science - With Labs  

Microsoft Academic Search

We describe here an interdisciplinary lab science course for non-majors using the history of science as a curricular guide. Our experience with diverse instructors underscores the importance of the teachers and classroom dynamics, beyond the curriculum. Moreover, the institutional political context is central: are courses for non-majors valued and is support given to instructors to innovate? Two sample projects are

Douglas Allchin; Elizabeth Anthony; Jack Bristol; Alan Dean; David Hall; Carl Lieb

1999-01-01

136

Safer Science: Computer Safety in the Lab  

NSDL National Science Digital Library

Today, it is common to find desktops, laptops, netbooks, and specialized handheld devices in the science lab, and the internet is often used for research and collaboration between learners. The pervasive use of computer technology in high school labs toda

Roy, Ken

2010-11-01

137

Flexible HVAC System for Lab or Classroom.  

ERIC Educational Resources Information Center

Discusses an effort to design a heating, ventilation, and air conditioning system flexible enough to accommodate an easy conversion of classrooms to laboratories and dry labs to wet labs. The design's energy efficiency and operations and maintenance are examined. (GR)

Friedan, Jonathan

2001-01-01

138

Environment monitoring using LabVIEW.  

National Technical Information Service (NTIS)

A system has been developed for electronically recording and monitoring temperature, humidity, and other environmental variables at the Silicon Detector Facility located in Lab D. The data is collected by LabVIEW software, which runs in the background on ...

J. Hawtree

1995-01-01

139

Jefferson Lab Data Acquisition Run Control System.  

National Technical Information Service (NTIS)

A general overview of the Jefferson Lab data acquisition run control system is presented. This run control system is designed to operate the configuration, control, and monitoring of all Jefferson Lab experiments. It controls data-taking activities by coo...

C. Timmer D. Abbott G. Heyes V. Gyurjyan

2005-01-01

140

Flexible HVAC System for Lab or Classroom.  

ERIC Educational Resources Information Center

|Discusses an effort to design a heating, ventilation, and air conditioning system flexible enough to accommodate an easy conversion of classrooms to laboratories and dry labs to wet labs. The design's energy efficiency and operations and maintenance are examined. (GR)|

Friedan, Jonathan

2001-01-01

141

Technology Teaching Lab: A Program of Experience.  

ERIC Educational Resources Information Center

Describes the development of a Technology Teaching Lab that was designed to provide elementary education preservice teachers with instruction to create technology-enhanced lessons and to use the lessons in their field placement. Discusses planning the lab, integrating the lab component into methods courses, and evaluation. (LRW)

Bucci, Terri Teal

2002-01-01

142

Experiences with Lab-Centric Instruction  

ERIC Educational Resources Information Center

|Lab-centric instruction emphasizes supervised, hands-on activities by substituting lab for lecture time. It combines a multitude of pedagogical techniques into the format of an extended, structured closed lab. We discuss the range of benefits for students, including increased staff interaction, frequent and varied self-assessments, integrated…

Titterton, Nathaniel; Lewis, Colleen M.; Clancy, Michael J.

2010-01-01

143

Teaching EE circuits I lab with Labview  

Microsoft Academic Search

The teaching of undergraduate EE labs is constantly a concern for those who teach these labs. Several questions must annually be asked: 1) have we reached the point in the academic training of the undergraduates to eliminate the need to actually conduct hands-on lab experiments in favor of computer simulated experiences; 2) are we approaching more and more the opinion

C. E. Nunnally

1996-01-01

144

Experiences with Lab-Centric Instruction  

ERIC Educational Resources Information Center

Lab-centric instruction emphasizes supervised, hands-on activities by substituting lab for lecture time. It combines a multitude of pedagogical techniques into the format of an extended, structured closed lab. We discuss the range of benefits for students, including increased staff interaction, frequent and varied self-assessments, integrated…

Titterton, Nathaniel; Lewis, Colleen M.; Clancy, Michael J.

2010-01-01

145

Jefferson Lab Hands-on Activities  

NSDL National Science Digital Library

These are some of the hands-on activities used in Jefferson Lab's BEAMS program. In BEAMS, classes of 6th, 7th and 8th grade students are exposed to the Lab's scientific environment. For five consecutive days during school hours, classes of 6th grade students and their teachers participate in these science and math activities conducted with Jefferson Lab staff.

Education, Thomas J.

146

The Drama Workshop: A Lab Alternative.  

ERIC Educational Resources Information Center

|In lieu of language lab attendance, second-year language students had the option of attending a drama lab. This program has met with great success. The objective of the lab is to improve skills in pronunciation, intonation, and stress patterns. Also, an environment is created in which the student feels at home with the target language. (PJM)|

Cernyak, Susan E.; Reimer, Robert C.

1980-01-01

147

Design labs: Students' expectations and reality  

NASA Astrophysics Data System (ADS)

In a study reported in PERC 2004 the authors described how introductory physics labs in which students design their own experiments help them develop scientific abilities. These include the ability to design an experiment to solve a problem, to collect and analyze data and to communicate the details of the experimental procedure. The goal of the present study is to investigate the social aspect of student learning in these labs: whether students' expectations are consistent with the goals of the labs, whether student assessment of their learning in the labs matches the goals, and whether students perceive the labs as helpful in learning useful skills.

Etkina, Eugenia; Murthy, Sahana

2006-02-01

148

AT&T Labs Research  

NSDL National Science Digital Library

The AT&T Labs organization constitutes one of the most celebrated research groups in the world. The group is willing to share some of its findings through this fine website and visitors with a penchant for technological innovation will find much to enjoy here. The site includes a variety of featured stories, videos, projects, and papers. Of note is âÂÂTech View: Technology for Making TV Viewing Easy,â an article on voice activated remote controls. Visitors can sign up for updates and also read the "Profiles in Innovation" series, which looks at different researchers and their work at the Labs. Finally, visitors shouldn't miss the "Human-Computer Interaction" blog, authored by researcher Lana Yarosh.

149

Exclusive processes at Jefferson Lab  

SciTech Connect

Mapping the transition from strongly interacting, non-perturbative quantum chromodynamics, where nucleon-meson degrees of freedom are effective to perturbative QCD of quark and gluon degrees of freedom, is one of the most fundamental, challenging tasks in nuclear and particle physics. Exclusive processes such as proton-proton elastic scattering, meson photoproduction, and deuteron photodisintegration have been pursued extensively at many laboratories over the years in the search for such a transition, particularly at Jefferson Lab in recent years, taking the advantage of the high luminosity capability of the CEBAF facility. In this talk, I review recent results from Jefferson Lab on deuteron photodisintegration and photopion production processes and the future 12 GeV program.

Haiyan Gao

2007-09-01

150

History of Science - With Labs  

NASA Astrophysics Data System (ADS)

We describe here an interdisciplinary lab science course for non-majors using the history of science as a curricular guide. Our experience with diverse instructors underscores the importance of the teachers and classroom dynamics, beyond the curriculum. Moreover, the institutional political context is central: are courses for non-majors valued and is support given to instructors to innovate? Two sample projects are profiled.

Allchin, Douglas; Anthony, Elizabeth; Bristol, Jack; et al.

151

Physics Lab Online: Practice Problems  

NSDL National Science Digital Library

This collection of student practice problems addresses topics typically covered in an algebra-based physics course. The values in the problems are randomly generated to give students the opportunity to work independently and to repeat a problem set as needed. Students can check answers as they do the problems. This page is part of a larger set of curriculum materials by the same author. It contains syllabi, lessons, hands-on labs, AP review exercises, and assessments.

2011-06-22

152

Sea Scallop Shell Lab Handout  

NSDL National Science Digital Library

Used in combination with the Sea Scallop Shell Lab teacher's guide, students will examine sea scallop shells to figure out as much as possible about the scallops living on the sea floor in one three important fishery grounds, Hudson Canyon, off New Bedford, MA, and George's Bank. The activity emphasizes observation, measurements, and basic calculations. The teacher's guide is available from the COSEE-NE OSEI resource site.

153

Rice Virtual Lab in Statistics  

NSDL National Science Digital Library

This site provides resources to assist students in understanding introductory statistics. Multimedia instruction, demonstrations, case studies and an analysis lab are provided. Topics covered include analysis of variance, boxplot, confidence interval, contrast among means, correlated t-test, correlation, histogram, independent groups t-test, regression, and a repeated measures ANOVA. The simulations/demonstrations are free JAVA applets in the public domain. Simulations and demonstrations and JBuilder source code are available for download.

2008-12-31

154

CableLabs: Current Projects  

NSDL National Science Digital Library

This Web site highlights projects being conducted by CableLabs, "a non-profit research and development consortium that is dedicated to pursuing new cable telecommunications technologies." Most of these projects are creating specifications that will improve quality and ensure interoperability of cable systems. Focuses of research include cable modems, interactive services, broadband applications, and more. Each project's home page has extensive documentation on the intended goals and access to all specifications. Some presentations are also given that give a basic overview of the project.

2000-01-01

155

Mag Lab U: Alessandro Volta  

NSDL National Science Digital Library

This is a short biography of Alessandro Volta, the 18th-century Italian scientist who proposed the theory that electrical current is generated by contact between different metals. His experimental work resulted in the construction of the "voltaic pile" battery, the first known source of sustainable electric current. The biography includes a link to a Java-based simulation of his voltaic pile device. Mag Lab U is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.

Neaves, Shannon

2010-05-26

156

Jefferson Lab phenomenology: selected highlights  

SciTech Connect

An overview of recent experimental highlights from Jefferson Lab is presented. We review the status of baryon spectroscopy, including the search for pentaquarks, as well as measurements of electromagnetic form factors of the nucleon, featuring the proton G{sub E}/G{sub M} ratio and the determination of the strangeness form factors. In inclusive scattering, we describe recent studies of quark-hadron duality in structure functions in the resonance-scaling transition region, and outline future physics plans at an energy upgraded 12 GeV facility.

Wolodymyr Melnitchouk

2005-07-07

157

Multidimensional protein fractionation using ProteomeLab PF 2D™ for profiling amyotrophic lateral sclerosis immunity: A preliminary report  

Microsoft Academic Search

BACKGROUND: The ProteomeLab™ PF 2D platform is a relatively new approach to global protein profiling. Herein, it was used for investigation of plasma proteome changes in amyotrophic lateral sclerosis (ALS) patients before and during immunization with glatiramer acetate (GA) in a clinical trial. RESULTS: The experimental design included immunoaffinity depletion of 12 most abundant proteins from plasma samples with the

Joshua D Schlautman; Wojciech Rozek; Robert Stetler; R Lee Mosley; Howard E Gendelman; Pawel Ciborowski

2008-01-01

158

Mississippi State Physics Labs: Electricity and Magnetism  

NSDL National Science Digital Library

This item is an introductory lab that examines several aspects of electricity and magnetism. The lab contains three sections that explore the basic properties of magnets, how electromagnets work, how simple electric motors work, and a take home activity in which students create a circuit diagram of their home. Materials are inexpensive and readily available. This item is part of a larger collection of online physics labs by the authors.

Ferguson, Joe; Denson, Jack

2008-01-26

159

Experiences with lab-centric instruction  

Microsoft Academic Search

Lab-centric instruction emphasizes supervised, hands-on activities by substituting lab for lecture time. It combines a multitude of pedagogical techniques into the format of an extended, structured closed lab. We discuss the range of benefits for students, including increased staff interaction, frequent and varied self-assessments, integrated collaborative activities, and a systematic sequence of activities that gradually increases in difficulty. Instructors also

Nathaniel Titterton; Colleen M. Lewis; Michael J. Clancy

2010-01-01

160

USC Institute for Creative Technologies: Graphics Lab  

NSDL National Science Digital Library

The Graphics Lab is part of the University of Southern California's Institute for Creative Technologies. The lab performs research on computer graphics and modeling techniques such as image-based lighting, range scanning, and animation. This is all made possible by a U.S. Army contract "to advance the state of immersive training simulation." The Lab's homepage offers many details on the various projects within each research area; there are several publications that can be downloaded to complement this background material. Some software, such as HDRShop (used for High-Dynamic Range Image Editing), and data are also available on the Lab's Web site.

2006-01-12

161

Lab Set-Up and Safety  

NSDL National Science Digital Library

Whether your assigned classroom is for science labs or there is a specific lab area shared among several teachers, you need to set up properly for group experiments and other hands-on activities. There are several ways to set up lab groups in various combinations, depending upon class size, available materials, and storage space. Some schools have spacious rooms with desks and lab areas that include cabinets, sinks, and an adjoining teacher prep/storage room, while others may have one sink, little storage space, and desks or tables with stools or chairs.

Swango, C. J.; Steward, Sally B.

2003-01-01

162

Jefferson Lab, a status report  

SciTech Connect

Thomas Jefferson National Accelerator Facility (Jefferson Lab; formerly known as CEBAF), operates a 4 GeV, 200 {micro}A continuous wave (CW) electron accelerator that re-circulates the beam five times through two superconducting 400 MeV linacs. Electrons can be extracted from any of the five recirculation passes and beam can be simultaneously delivered to the three experimental halls. As the commissioning stage nears completion, the accelerator is becoming a fully operational machine. Experiments in Hall C have been underway since November 1995 with beam powers of over 300 kW at various energies. Hall A has received beam for spectrometer commissioning, while Hall B is expected to receive its first beam in the fall of 1996. Accelerator availability of greater than 70% during physics runs and excellent beam quality have contributed to making Jefferson Lab a world class laboratory for accelerator-based electromagnetic nuclear physics. With the high performance of the superconducting RF cavities, machine upgrades to 6 GeV, and eventually 8 to 10 GeV are now in the planning stages. Operational and commissioning details concerning all aspects of the machine will be discussed.

Dunham, B.M.

1996-10-01

163

Rock cycle in chocolate lab  

NSDL National Science Digital Library

In this lab students receive two small blocks (1 cm3) of chocolate (white and dark), and follow it through the entire rock cycle. The chocolate blocks are melted on a hot plate, with different melting temperatures and rheologies due to compositional differences. The "magma" is then cooled either slowly or quickly, and the resulting textures are examined and compared to granite and basalt hand samples. The "igneous" chocolate is then ground and abraded to show erosion, and the eroded material is pressure-lithified to form "sedimentary" chocolate. The sedimentary chocolate then undergoes greater pressure to mimic metamorphism, and additional heat re-melts the chocolate back into magma. Students compare the chocolate "rocks" in each of these stages with real rock samples. The final assignment is to describe the "life story" of complex conglomerate rock sample. The lab is a bit messy and takes a bit of preparation, but students come away with a significantly better understanding of the rock cycle as a whole and each of its component parts.

Stelling, Pete

164

Computational Labs Using VPython Complement Conventional Labs in Online and Regular Physics Classes  

Microsoft Academic Search

Fairmont State University has developed online physics classes for the high-school teaching certificate based on the text book Matter and Interaction by Chabay and Sherwood. This lead to using computational VPython labs also in the traditional class room setting to complement conventional labs. The computational modeling process has proven to provide an excellent basis for the subsequent conventional lab and

Martina E. Bachlechner

2009-01-01

165

Improving the Quality of Lab Reports by Using Them as Lab Instructions  

ERIC Educational Resources Information Center

|Lab exercises are quite popular in teaching science. Teachers have numerous goals in mind when teaching science laboratories. Nevertheless, empirical research draws a heterogeneous picture of the benefits of lab work. Research has shown that it does not necessarily contribute to the enhancement of practical abilities or content knowledge. Lab

Haagen-Schuetzenhoefer, Claudia

2012-01-01

166

Analysis of First Plasma in Madison Plasma Dynamo Experiment  

NASA Astrophysics Data System (ADS)

The Madison Plasma Dynamo Experiment (MPDX) is designed to investigate the self-generation of magnetic fields in large astrophysical dynamos. Simulations show that an adequately large Magnetic Reynolds number is needed to produce a dynamo; therefore a large, hot, flowing and unmagnetized plasma is necessary. This poster presents an analysis of the first plasma in MPDX using electrodes that both heat and stir the plasma. A lanthanum hexaboride (LaB6) electron source is used within the 3000 Gauss multipole cusp magnetic field and ExB stirring electrodes govern the plasma flow. This poster analyzes the performance of the efficient and fast power supply used in conjunction with the stirring electrodes to create a controllable flow using a feedback loop. In addition, the effectiveness of the LaB6 electron source will be reported. Supported by the DOE and NSF.

Marchbanks, Christopher; Weisberg, David; Wallace, John; Cooper, Christopher; Forest, Cary

2012-10-01

167

Sea Scallop Shell Lab Teacher's Guide  

NSDL National Science Digital Library

Used in combination with the Sea Scallop Lab handout, students will examine sea scallop shells to determine their size, approximate age, and meat yield. This lab activity is complete with objectives, math and science standards, materials list, procedure, and extensions. The handout is available from the COSEE-NE OSEI resource site.

168

Automation & delegation to reduce lab management workload  

Microsoft Academic Search

Ten years ago, the University of Florida employed over 80 students and 4 full-time staff members to run the public computer labs. Those 80+ students managed five lab locations containing 7 classrooms and 400+ computers. Today there are still over 60 student employees but only a single full-time staff member, to run the same number of facilities and classrooms. Software

Daniel B. Delgado

2005-01-01

169

Traditional Labs + New Questions = Improved Student Performance.  

ERIC Educational Resources Information Center

|Presents three typical lab activities involving the breathing rate of fish, the behavior of electromagnets, and tests for water hardness to demonstrate how labs can be modified to teach process skills. Discusses how basic concepts about experimentation are developed and ways of generating and improving science experiments. Includes a laboratory…

Rezba, Richard J.; And Others

1992-01-01

170

Hydrogel Beads: The New Slime Lab?  

ERIC Educational Resources Information Center

|Creating slime fascinates students. Unfortunately, though intrigue is at its peak, the educational aspect of this activity is often minimal. This article describes a chemistry lab that closely relates to the slime lab and allows high school students to explore the concepts of chemical bonding, properties, and replacement reactions. It involves…

Brockway, Debra; Libera, Matthew; Welner, Heidi

2011-01-01

171

The Multi-Purpose Library Computer Lab  

Microsoft Academic Search

Within today's academic libraries, computer labs are designed and built to satisfy multiple needs, such as an open lab, instructional facility, and staff development center. To accomplish this, it is necessary to focus on issues concerning staffing, scheduling, security, and maintenance, as well as address the conflicts that often arise among them. Learn how Rider University has successfully operated and

Robert J. Lackie; Edward M. Corrado

2001-01-01

172

Open source centric information security lab development  

Microsoft Academic Search

In addition to the intellectual effort, information security lab development can require substantial organizational budget and labor commitments. For example, obtaining commercial security software necessitates a significant budget commitment. In an analogous manner, installing security software, setting up user accounts, and configuring lab systems can require a significant labor commitment. In many academic environments, obtaining the necessary budget and labor

Ed Crowley

2005-01-01

173

RoboLab and Virtual Environments.  

National Technical Information Service (NTIS)

A useful adjunct to the manned space station would be a self-contained free-flying laboratory (RoboLab). This laboratory would have a robot operated under telepresence from the space station or ground. Long duration experiments aboard RoboLab could be per...

J. C. Giarratano

1994-01-01

174

Multigenre Lab Reports: Connecting Literacy and Science  

ERIC Educational Resources Information Center

|The development of communication skills is a key component in any science program. However, students do not see the connections between writing and science. In particular, students lack the enthusiasm when the time comes to write lab reports. Students say that they do not see why they should have to write dry, boring lab reports following an…

Rochwerger, Leonora; Peterson, Shelley Stagg; Calovini, Theresa

2006-01-01

175

IBM Almaden's user sciences & experience research lab  

Microsoft Academic Search

The IBM research division is roughly 3,000 people strong, located at 8 sites worldwide. This paper outlines the history and work of the User Sciences & Experience Research (USER) lab at IBM's Almaden Research Center in Silicon Valley. The USER lab has long been the focus for a number of pivotal developments in input devices for IBM personal computers. More

Daniel M. Russell; Steve B. Cousins

2004-01-01

176

Mississippi State Physics Labs: Simple Machines  

NSDL National Science Digital Library

This item is an introductory physics lab that explores three types of simple machines. Students experiment with inclined planes, levers, and pulleys to see how simple machines are used to gain force advantage. This item is part of a larger collection of online physics labs by the authors.

Ferguson, Joe; Denson, Jack

2008-09-08

177

Frederick National Lab: Customer Guide - Human Subjects  

Cancer.gov

Any research activity conducted at Frederick National Lab involving living, identifiable human subjects shall commence only with Institutional Review Board (IRB) approval or when exemption from this requirement has been received from the NIH Office for Human Subjects Research (OHSR) through the Office of Scientific Operations, Frederick National Lab, or the appropriate division office.

178

Jefferson Lab's Trim Card II  

SciTech Connect

Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF) uses Trim Card I power supplies to drive approximately 1900 correction magnets. These trim cards have had a long and illustrious service record. However, some of the employed technology is now obsolete, making it difficult to maintain the system and retain adequate spares. The Trim Card II is being developed to act as a transparent replacement for its aging predecessor. A modular approach has been taken in its development to facilitate the substitution of sections for future improvements and maintenance. The resulting design has been divided into a motherboard and 7 daughter cards which has also allowed for parallel development. The Trim Card II utilizes modern technologies such as a Field Programmable Gate Array (FPGA) and a microprocessor to embed trim card controls and diagnostics. These reprogrammable devices also provide the versatility to incorporate future requirements.

Trent Allison; Sarin Philip; C. Higgins; Edward Martin; William Merz

2005-05-01

179

Z Machine at Sandia Labs  

ScienceCinema

Sandia Labs' Z machine is the largest laboratory source of x-rays in the world. For the few nanoseconds of a Z Machine test, its electrical output equals the output of 50x the electrical generating stations of all the power plants on earth. The Z Machine complex encompasses an area roughly the size of a major college basketball arena. Originally created to validate nuclear weapons models, the Z Machine is also considered a "dark horse" in the race for viable fusion energy production. After the famous "arcs and sparks" photo of Z (a photo no longer possible after its refurbishment), this is a fast-motion video of workers completing Z's recent refurbishment.

180

Online Writing Lab: Workplace Writers  

NSDL National Science Digital Library

Developed and maintained by Purdue's Online Writing Lab (OWL) this very useful portion of the larger OWL site focuses on professional and business writing. The site is divided topically focusing on resumes and job search writing, general business writing, letters, memos and reports. In each of these section users will find tips and pointers as well as examples which showcase best practices when crafting letters, reports or other materials. A very useful section for educators is a selection of Power-point presentations, along with handouts, which address a number of business writing topics. Another very nice feature are the OWL online workshops, which walk users through a series of links and pages to help support the creation of writing resumes, cover letters and research reports.

2006-12-19

181

The Habitable Planet: Ecology Lab  

NSDL National Science Digital Library

The Annenberg Media project continues to bring interesting and engaging educational materials to teachers and students, and the ball keeps on rolling with this particular feature. The ecology lab feature here is designed to be used in conjunction with "The Habitable Planet" series, which is also available on the site. Teachers and others will note that the site includes an ecology simulator, and visitors can toggle the various settings to learn how the addition or removal of different species will affect their self-designed ecosystem. The simulator is fairly easy to understand, and there's a "HELP" section designed to provide assistance. Additionally, the site also includes a glossary of relevant ecosystem terms, videos, and an online textbook.

182

Navigating the Maze of a New Lab Setup  

NSDL National Science Digital Library

From the EB 2006 Trainee Symposium a presentation on how to set up a lab. This recorded presentation discusses how to negotiate lab space, renovation considerations, lab equipment, and animal facilities.

Karie Scrogin (Loyola University Medical Center)

2006-05-01

183

Navigating the Maze of a New Lab Setup  

NSDL National Science Digital Library

From the EB 2006 Trainee Symposium a powerpoint presentation file on how to set up a lab. This powerpoint presentation file discusses how to negotiate lab space, renovation considerations, lab equipment, and animal facilities.

Karie Scrogin (Loyola University Medical Center)

2006-05-01

184

Nonproliferation through international lab-to-lab technology cooperation  

SciTech Connect

At the Lawrence Livermore National Laboratory (LLNL) one of the fastest growing programs as a result of the end of the Cold War is the Nonproliferation, Arms Control, and International Security Directorate (NAI). Since the early 1990's NAI types of programs have grown from a small percentage of LLNL's budget to constitute one of its major programs. NAI's work includes developing instruments to detect chemicals and radiation, analyzing complex national defense problems, anticipating threats to the US, and providing personnel to support national and international efforts in crisis management and arms control. These functions support the US government in dealing with weapons-of-mass-destruction challenges? proliferation, terrorism, and nuclear-state instability. To combat the rapidly emerging chem-bio-terrorism threats, NAI is drawing on LLNL?s advanced technologies in bioscience, microfabrication, and computations to help the Department of Energy (DOE )provide major support to the US government. Half of NAI's effort is directed toward preventing proliferation before it starts, which is the mission of the Proliferation Prevention and Arms Control Program (PPAC). Until recently, our emphasis was on arms control. Now, arms control continues to be an important component while international cooperation and fissile material control are our dominant activities for the Department of Energy. Many of the post-Cold-War changes are highly visible, such as the elimination of nuclear testing by the United States, Russia, China and other major powers; agreements and continuing negotiations to dramatically reduce numbers of nuclear weapons; and increasing international focus on nonproliferation and counterterrorism. Other changes are less highly publicized but are no less significant. One such area is the increasing interactions between DOE Laboratory scientists and their counterparts in the nuclear weapons institutes of the former Soviet Union. Although the large majority of these Lab-to- Lab activities are currently with the FSU, that experience is leading to important and productive interactions with other countries and regions, most significantly, China and the Middle East. In contrast to the Cold War years, when most technologies developed at LLNL were solely for the US national defense efforts and therefore classified, many of NAI's new technologies and tools are unclassified and designed for use in a multilateral security environment. PPAC is the proliferation ?Prevention? element of NAI?s four-element ?Prevention-Reversal-Response-Avoid Surprise? program. We direct some twenty different projects. which have realized about a factor of ten growth in the last four years.

Dunlop, W H

1998-09-10

185

Mississippi State Physics Labs: Ohm's Law, Resistance, and Resistivity  

NSDL National Science Digital Library

This pdf document contains a lab that covers Ohm's Law. In the lab, students use Pasco DataStudio and lab equipment to measure the resistance and resistivity of resistors and wires. This lab is closely tied with This particular set=up and will need to be adapted to work with other equipment. This lab is part of a larger collection of labs used in Mississippi State physics courses.

Ferguson, Joe; Denson, Jack

2007-10-16

186

Cornell Lab of Ornithology: Urban Bird Studies  

NSDL National Science Digital Library

The Cornell Lab of Ornithology has distinguished itself by creating great public-oriented educational programs. Representing this tradition of public outreach, the Lab's Urban Bird Studies program encourages urbanites to participate in a global data collection project that will be utilized by scientists at the Cornell Lab. Anyone can participate, and project participants can choose from various programs such as Dove Detectives, Gulls Galore, Pigeon Watch, Crows Count, and Birds in the City. This site is available in Spanish, and offers a News section (available both online and as a monthly email) that includes bird stories, study results, and participant entries.

187

The ALPHA Lab at UC Berkeley  

NSDL National Science Digital Library

The Alpha Lab at the University of California at Berkeley researches and develops robotics systems for high-precision manufacturing. Specifically, it combines mathematical algorithms and industrial automation to build low-cost, reliable tools for "feeding, fixturing and grasping." The projects section of the lab's Web site describes a number of experiments and model implementations for robotics operation. Many of these have Java applets that demonstrate the principles involved in handling differently shaped objects. There are also discussions of various projects in computational physiology and Internet telerobotics. The lab's director has many of his publications available online.

188

Jefferson Lab's Distributed Data Acquisition  

SciTech Connect

Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF) occasionally experiences fast intermittent beam instabilities that are difficult to isolate and result in downtime. The Distributed Data Acquisition (Dist DAQ) system is being developed to detect and quickly locate such instabilities. It will consist of multiple Ethernet based data acquisition chassis distributed throughout the seven-eights of a mile CEBAF site. Each chassis will monitor various control system signals that are only available locally and/or monitored by systems with small bandwidths that cannot identify fast transients. The chassis will collect data at rates up to 40 Msps in circular buffers that can be frozen and unrolled after an event trigger. These triggers will be derived from signals such as periodic timers or accelerator faults and be distributed via a custom fiber optic event trigger network. This triggering scheme will allow all the data acquisition chassis to be triggered simultaneously and provide a snapshot of relevant CEBAF control signals. The data will then be automatically analyzed for frequency content and transients to determine if and where instabilities exist.

Trent Allison; Thomas Powers

2006-05-01

189

Frederick National Lab: Customer Guide - Consultants  

Cancer.gov

Consultant agreements are written to obtain specialized knowledge or expertise when it is not available at the Frederick National Lab. These agreements directly engage the time and effort of a subcontractor, whether a person or a company.

190

System of Labs Direct Fabrication Technology  

SciTech Connect

The System of Labs Direct Fabrication Technology program was intended to foster cooperation and development in a cooperative effort between Sandia National Labs, Idaho National Energy and Environment Lab and Oak Ridge National Lab. The goal of this program was to bring together LENS (Laser Engineered Net Shaping) from Sandia, INEEL's spray forming process and the alloy development expertise of ORNL. This program investigated the feasibility of combining the LENS and spray forming processes to exploit the best features of both approaches. Further, since both processes were thought to result in a rapidly solidified structure, the alloy design expertise of ORNL offered the opportunity for alloy design or processing options which could more fully utilize the unique capabilities of the processes.

DIMOS,DUANE B.; OLIVER,MICHAEL S.; SCHLIENGER,M. ERIC

1999-11-01

191

Bell Labs - Physical Sciences - Scalpel Introduction  

NSDL National Science Digital Library

This website from Bell Labs includes a description of SCALPEL (Scattering with Angular Limitation in Projection Electron-beam Lithography) technology. SCALPEL uses proven technology which requires no new invention and operates within known parameter space.

2012-12-19

192

Advanced Lab Teaching Resources: Physics & Astronomy  

NSDL National Science Digital Library

Teaching physics is challenging work, and Professor Suzanne Amador Kane of Haverford College has created this excellent set of teaching resources related to this discipline. The site includes materials created in the course of teaching the classes "Laboratory in Electronics, Waves & Optics" and "Quantum Physics Lab". Interested parties can click on the different topics covered in each course to discover a brief overview of areas such as "Semiconductors & Diodes" and "Ultrasound Imaging". Additionally, the site also contains links to course notes and lab exercises for the courses "Advanced Electronics and Computer Instrumentation" and "Advanced Physics Lab". Also, visitors shouldn't miss the link to a nanoscience lab manual created by physicists at the University of Wisconsin, which can also be found on the site.

193

Developing an Advanced Lab course from scratch  

NASA Astrophysics Data System (ADS)

A few years ago the Alpha group in APS organized faculty with interests in advanced lab courses in physics. At the University of Wyoming, we re-launched an advanced lab course after doing more than 15 years without one. Our majors had to take an electronic course in the Electrical Engineering department to get familiar with any kind of electronic equipment. Now we are in the fourth teaching session of the advanced Modern Physics lab and we will expand the course into a two-term course beginning spring 2013. Forty-five majors have gone through our labs, We developed an oral exam tradition, which is now beginning to lend our department upper level outcome assessment credibility for campus wide assessment.

Michalak, Rudi

2012-10-01

194

Lab 4: Finding Coral's Ideal Environment  

NSDL National Science Digital Library

Corals, like other living animals, require a particular range of environmental conditions to survive. In this lab, students examine sea surface temperature, depth, salinity, and aragonite saturation data to discover coral reefs' favored environments.

195

Introducing Scientific Reasoning with the Penny Lab.  

ERIC Educational Resources Information Center

Provides background information and detailed procedures for a lab involving pennies that enables students to discover information on scientific methodology, experimental design, and the determination of density. Contains 26 references. (DDR)

Mauldin, Robert F.

1997-01-01

196

Ejs Intro SpringLab Model  

NSDL National Science Digital Library

The Introductory Spring Lab model asks students to develop a model for a mass on a spring. It is distributed as a ready-to-run (compiled) Java archive. Double-clicking the ejs_intro_SpringLab.jar file will run the program if Java is installed. In order to modify this simulation (and see how it is designed), if you have Ejs installed, you can right-click within the simulation window and select Open Ejs Model from the pop-up menu. Information about Ejs (Easy Java Simulations) is available at: . The Intro Spring Lab program is one of a suite of Easy Java Simulations (Ejs) models used in Introductory Physics Labs. Ejs, a part of the Open Source Physics Project, and is designed to make it easier to access, modify and generate computer models. Additional models can be found by searching ComPADRE for Ejs.

Cox, Anne; Christian, Wolfgang; Belloni, Mario

2008-05-30

197

Ames Lab 101: Cleaner Greener Magnets  

ScienceCinema

Karl Gschneidner with the Materials Science and Engineering at Ames Laboratory gives the 101 on the forms and functions of magnets. He discusses how Ames Lab is developing magnets that are cheaper and better for the environment.

198

EarthLabs: A National Model for Earth Science Lab Courses  

Microsoft Academic Search

As a response to the need for more rigorous, inquiry-based high school Earth science courses, a coalition of scientists, educators, and five states have created EarthLabs, a set of pilot modules that can serve as a national model for lab-based science courses. The content of EarthLabs chapters focuses on Earth system science and environmental literacy and conforms to the National

J. R. McDaris; L. Dahlman; D. Barstow

2008-01-01

199

HIV-1 assembly at the plasma membrane.  

PubMed

HIV-1 particle assembly takes place at the plasma membrane, which likely enhances release of extracellular virions and spread to next target cells. Recent work by our lab and others started to reveal a molecular mechanism by which HIV ensures to make the plasma membrane as a primary site of virus assembly. PMID:20510745

Ono, Akira

2010-05-26

200

LabView in engineering laboratory courses  

Microsoft Academic Search

The project is to introduce the national instruments software LabView to the lower division engineering laboratory courses in electrical and mechanical engineering. LabView provides a modern tool to perform the computer-based experiments, date acquisition, and instrumentation measurements. The objectives of this project are: gain hands-on experience; understand how engineering system works; develop technical skills including programming and analysis; provide interactive

J. Y.-Z. Wang

2003-01-01

201

Teaching Cybersecurity with DeterLab  

Microsoft Academic Search

The DETER project aims to advance cybersecurity research and education. Over the past seven years, the project has focused on improving and redefining the methods, technology, and infrastructure for developing cyberdefense technology. The project's research results are put into practice by DeterLab, a public, free-for-use experimental facility available to researchers and educators worldwide. Educators can use DeterLab's exercises to teach

Jelena Mirkovic; Terry Benzel

2012-01-01

202

Frederick National Lab: Research Donor Program (RDP)  

Cancer.gov

The Research Donor Program (RDP) serves as a central repository for the collection and distribution of whole blood samples from healthy volunteers to the Frederick National Lab Investigators for in vitro research use. Approved projects can obtain timely and inexpensive samples through OHS. Employees of the Frederick National Lab and Fort Detrick community may volunteer to be donors. Monetary compensation is provided for donor participation. The program is administered by Occupational Health Services.

203

Jefferson Lab Plotting Toolkit for accelerator controls  

SciTech Connect

Experimental physics generates numerous data sets that scientists analyze using plots, graphs, etc. The Jefferson Lab Plotting Toolkit, JPT, a graphical user interface toolkit, was developed at Jefferson Lab to do data plotting. JPT provides data structures for sets of data, analyzes the range of the data, calculates the reasonable maximum, minimum, and scale of axes, sets line styles and marker styles, plots curves and fills areas.

J. Chen; M. Keesee; C. Larrieu; G. Lei

1999-03-01

204

Chisholm Lab at MIT: Resources on Phytoplankton  

NSDL National Science Digital Library

The Chisholm Lab at MIT has done groundbreaking work on the role of phytoplankton in ocean systems, including the discovery of a new species of phytoplankton, Prochlorococcus, found to be an abundant marine photosynthetic bacterium. The resources provided at the Lab's site include basic and advanced information on phytoplankton, laboratory protocols, a bibliography of additional resources, and links to a variety of sources in oceanography, marine biology, genomics, and other subjects.

2007-04-06

205

Information Assurance Security and Lab Series  

NSDL National Science Digital Library

The Center for Systems Security and Information Assurance (CSSIA) provides this 122 page pdf as part of a series of lab exercises intended to support courseware for CompTIA Security certification. After completing this lab, "students will learn the process of capturing network traffic using three different methods, the tcpdump command, Wireshark, and Network Minor." Users are encouraged to visit the center's site and create a free login to view these and other learning resources.

2012-11-05

206

The Technology Teaching Lab: Meeting the ISTE Standards.  

ERIC Educational Resources Information Center

The technology teaching lab program at Ohio State University at Mansfield is a series of 2-hour labs that runs concurrently with preservice methods blocks. The purpose of the lab is to give the students the experience necessary to integrate technology into their classroom. The lab provides the students with instruction, opportunities, and…

Bucci, Terri Teal

207

The Technology Teaching Lab: Meeting the ISTE Standards.  

ERIC Educational Resources Information Center

|The technology teaching lab program at Ohio State University at Mansfield is a series of 2-hour labs that runs concurrently with preservice methods blocks. The purpose of the lab is to give the students the experience necessary to integrate technology into their classroom. The lab provides the students with instruction, opportunities, and…

Bucci, Terri Teal

208

Unique Approach to Hydraulic Characterization at an Underground Lab  

Microsoft Academic Search

The Sanford Underground Laboratory is the interim lab for the future federally funded DUSEL (Deep Underground Science and Engineering Lab). The Sanford Lab took over the abandoned Homestake mine in Lead, SD. Over three hundred miles of drift, extending 8,000 feet below the surface, are now being used to house experiments in disciplines including physics, geology, and biology. The lab

T. L. Jones; J. S. Wang

2009-01-01

209

Do Online Labs Work? An Assessment of an Online Lab on Cell Division  

ERIC Educational Resources Information Center

|Some studies show students successfully learning science through online courses. This study compared students doing an online and in-class lab exercise on cell division. Online students performed slightly but significantly better on a follow-up content quiz, however, about half those expressed a strong preference for in-class lab work.|

Gilman, Sharon L.

2006-01-01

210

Multi-purpose specialty labs: providing specialized computer labs both cost and space effectively  

Microsoft Academic Search

Hands-on experience in computer science curricula in today's environment is a virtual must. In general, it is possible to create computer labs that will address this need for a variety of students and classes. Even if these labs are not utilized in class, they must be available for students to obtain experience out of class. However, in order that these

Robert Belles; Jacob R. Miller

2002-01-01

211

The Living Labs for the market development and value creation: The GNSS Living Lab Prize  

Microsoft Academic Search

The objective of this paper is to demonstrate how Open Innovation and Living Labs concepts can support the industrial development of new business ideas. In particular, the adoption of Open Innovation \\/ User Driven concepts contributed to implement effective business development services in the GNSS (Global navigation satellite systems) downstream industry, based on the GNSS Living Lab Prize. This initiative

Andreas Dippelhofer; Ulrike Daniels; Thorsten Rudolph; Roberto Santoro

2011-01-01

212

Biotechnology Virtual Labs - Integrating Wet-lab Techniques and Theoretical Learning for Enhanced Learning at Universities  

Microsoft Academic Search

For enhanced education at the level of University courses such as those in biology or biotechnology, one of the key elements is the need of time and expertise to allow the student to familiarize laboratory techniques in par with regular theory. The Sakshat Amrita virtual biotechnology lab project focusing on virtualizing wet-lab techniques and integrating the learning experience has added

Shyam Diwakar; Krishnashree Achuthan; Prema Nedungadi

2010-01-01

213

Characteristics of a LaB6 hollow cathode in the glow-arc transition  

Microsoft Academic Search

A new type of a simple LaB6 hollow cathode tube allows us to have very stable discharge even in the regime of the glow-arc transition, which is commonly unstable for widely used cathode materials (Ta,W). Because of the relatively large size of our device (25 mm diameter) and the low-temperature operation (~1400 K), we were able to investigate various plasma

Akira Tonegawa; Kazuo Takayama

1990-01-01

214

Development of low-cost microfluidic systems for lab-on-a-chip biosensor applications  

Microsoft Academic Search

In this work, we develop low-cost microfluidic systems based on polydimethylsiloxane (PDMS) for lab-on-a-chip applications.\\u000a PDMS microfluidic structures have been fabricated by micromolding, PDMS casting, and plasma bonding processes. The micromolding\\u000a technique is used to fabricate PDMS slabs with micro-sized grooves, and the complete microchannel is formed by bonding PDMS\\u000a slab with glass or PDMS substrate. The molding procedure using

Adisorn Tuantranont; Tahom Lomas; Thitima Maturos; Anurat Wisitsora-at; Panote Thavarungkul; Proespichaya Kanatharana; Warakorn Limbut; Suchera Loyprasert

2006-01-01

215

Environment monitoring using LabVIEW  

SciTech Connect

A system has been developed for electronically recording and monitoring temperature, humidity, and other environmental variables at the Silicon Detector Facility located in Lab D. The data is collected by LabVIEW software, which runs in the background on an Apple Macintosh. The software is completely portable between Macintosh, MS Windows, and Sun platforms. The hardware includes a Macintosh with 8 MB of RAM; an external ADC-1 analog-to-digital converter that uses a serial port; LabVIEW software; temperature sensors; humidity sensors; and other voltage/current sensing devices. ADC values are converted to ASCII strings and entered into files which are read over Ethernet. Advantages include automatic logging, automatic recovery after power interruptions, and the availability of stand-alone applications for other locations with inexpensive software and hardware.

Hawtree, J.

1995-01-01

216

Lab: Horizontally Launched Projectiles (with uncertainty analysis)  

NSDL National Science Digital Library

This is a version of the time-tested lab where students roll a ball off a table top and use kinematics in two dimensions to try to predict where the ball will land. While many versions of this lab have been previously published, in this version students determine the uncertainty of all measurements and uncertainty of their prediction. The techniques and vocabulary are consistent with the Introduction to Measurement packet. In most versions of this lab, students predict the distance away from the table where they think the ball will land. Then, students launch the projectile to see whether their prediction is right. In this version, students use the concept of uncertainty and predict a range of distances between which they predict the ball will land. Then they launch the projectile to see whether their prediction is correct within their stated range of certainty.

Bohacek, Peter

217

Recent results in DIS from Jefferson Lab  

SciTech Connect

Recent results in Deep Inelastic processes measured at Jefferson Lab are presented. In addition to the inclusive reactions typically discussed in the context of Deep Inelastic (electron) Scattering, particular emphasis is given to Deep Exclusive and semi#19;inclusive reactions. Jefferson Lab has made significant contributions to the understanding of the partonic structure of the nucleon at large x, and with its first dedicated measurements is already providing important contributions to understanding the three-dimensional structure of the nucleon via constraints on Generalized Parton Distributions (GPDs) and Transverse Momentum Distributions (TMDs).

David Gaskell

2010-04-01

218

An online lab manual for neurophysiology.  

PubMed

A combination of student interest, a grant for computers, and a suggestion from a colleague led me to convert the printed lab manual for my neurophysiology course into an online version. The web-based version incorporates videos of procedures, color photos, diagrams, links to articles, and other supplementary materials. This paper discusses designing for the web, retaining compatibility with print, layering information, making videos in digital format, and sharing self-published resources. The labs themselves (appendix) are traditional "wet" experiments with crayfish that have been used in many neurobiology courses. PMID:23494073

Olivo, Richard F

2003-10-15

219

Deeply virtual Compton scattering at Jefferson Lab  

SciTech Connect

The Generalized Parton Distribution framework was introduced in the late 90’s and describes the nucleon in a revolutionary way, correlating the information from both momentum and transverse position space into experimentally accessible functions. After a brief introduction, this article reviews the Jefferson Lab 6 GeV measurements of Deeply Virtual Compton Scattering in Halls A and B, which give a unique access to Generalized Parton Distributions (GPD). The second part of this article reviews the Jefferson Lab 12 GeV upgrade in general terms, and then focuses on the GPD program in Halls A and B.

Franck Sabatie

2010-01-01

220

Lithium plasma emitter for collisionless magnetized plasma experiment  

NASA Astrophysics Data System (ADS)

This paper presents a newly developed lithium plasma emitter, which can provide quiescent and low-temperature collisionless conditions for magnetized plasma experiments. This plasma emitter generates thermal emissions of lithium ions and electrons to produce a lithium plasma. Lithium type beta-eucryptite and lanthanum-hexaboride (LaB6) powders were mixed and directly heated with a tungsten heater to synthesize ion and electron emissions. As a result, a plasma with a diameter of ~15 cm was obtained in a magnetic mirror configuration. The typical range of electron density was 1012-1013 m-3 and that of electron temperature was 0.1-0.8 eV with the emitter operation temperature of about 1500 K. The amplitude fluctuations for the plasma density were lower than 1%.

Kawamori, Eiichirou; Lee, Jyun-Yi; Huang, Yi-Jue; Syugu, Wun-Jheng; Song, Sung-Xuang; Hsieh, Tung-Yuan; Cheng, C. Z.

2011-09-01

221

Synthesis and characterization of LaB6 thin films on tungsten, rhenium, silicon and other substrates and their investigations as field emitters  

NASA Astrophysics Data System (ADS)

The paper deals with the comparative study of nanocrystalline Lanthanum hexaboride (LaB6) thin films grown on various substrates by Pulsed laser deposition and Arc plasma method. Field emission studies were carried out on LaB6 films deposited on various substrates show metallic behavior of the emitters. The high value of field enhancement factors, indicating that the electron emission from LaB6 nanoscale protrusions deposited on emitter surface. The post field emission surface morphology of the emitters showed no significant erosion of the films during continuous operation. The observed behavior indicates that it is linked with the growth of LaB6 films on substrate crystal structure. The LaB6 nanocrystallites/nanowires films were synthesized using arc plasma method shows good emission current stability. The LaB6 micro/nanocrystallites were also obtained by picosecond laser irradiation which gives high enhancement ? factor, and good emission current stability along with high current density. The results reveal that nanocrystalline LaB6 films, exhibit high resistance to ion bombardment and excellent structural stability and are more promising emitters for practical applications in field emission based new generation devices.

Late, Dattatray J.; More, Mahendra A.; Sinha, Sucharita; Dasgupta, K.; Misra, Pankaj; Singh, B. N.; Kukreja, Lalit M.; Bhoraskar, Sudha V.; Joag, Dilip S.

2011-08-01

222

Computational Labs Using VPython Complement Conventional Labs in Online and Regular Physics Classes  

NASA Astrophysics Data System (ADS)

Fairmont State University has developed online physics classes for the high-school teaching certificate based on the text book Matter and Interaction by Chabay and Sherwood. This lead to using computational VPython labs also in the traditional class room setting to complement conventional labs. The computational modeling process has proven to provide an excellent basis for the subsequent conventional lab and allows for a concrete experience of the difference between behavior according to a model and realistic behavior. Observations in the regular class room setting feed back into the development of the online classes.

Bachlechner, Martina E.

2009-03-01

223

Surfactant Adsorption: A Revised Physical Chemistry Lab  

ERIC Educational Resources Information Center

|Many physical chemistry lab courses include an experiment in which students measure surface tension as a function of surfactant concentration. In the traditional experiment, the data are fit to the Gibbs isotherm to determine the molar area for the surfactant, and the critical micelle concentration is used to calculate the Gibbs energy of micelle…

Bresler, Marc R.; Hagen, John P.

2008-01-01

224

Medical Lab Technician. Post Secondary Curriculum Guide.  

ERIC Educational Resources Information Center

|Intended to provide a model for organizing vocational instructional content, this curriculum guide consists of information pertinent to conducting a postsecondary level course for training medical lab technicians. While the guide is primarily oriented towards the classroom, whether as a primary resource or as a supplement to other teaching…

Simpson, Bruce; And Others

225

Pilot Plants Enhance Brazosport Lab Courses.  

ERIC Educational Resources Information Center

|Describes an experiential lab program for a two-year college's chemical technology program. Discusses student experiences in six miniature pilot plants that represent the essential instrumentation and chemical processes found in the chemical industry. Recognizes the industries that helped implement the program. (TW)|

Krieger, James

1986-01-01

226

Computer Labs Report to the Holodeck  

ERIC Educational Resources Information Center

|In many ways, specialized computer labs are the black holes of IT organizations. Budgets, equipment, employees--even space itself--are sucked in. Given a choice, many IT shops would engage warp drive and escape their gravitational pull forever. While Captain Kirk might have looked to Scotty for a fix to the problem, colleges and universities are…

Raths, David

2011-01-01

227

The Hall D Detector at Jefferson Lab  

SciTech Connect

The Hall D experiment at Jefferson Lab is part of the proposed CEBAF upgrade to 12 GeV beam energy. The Experiment will study gluonic excitations of mesons in the 1.5 to 2.5 GeV/c{sup 2} mass region using an 8 to 9 GeV beam of linearly polarized photons.

Curtis A. Meyer (Hall D Collaboration)

2000-12-12

228

Library-Labs-for-Science Literacy Courses.  

ERIC Educational Resources Information Center

|Describes two library-lab exercises the authors have incorporated into their college chemistry course. The first exercise introduces students to scientific information and familiarizes them with the tools for accessing it. The second provides a framework for evaluating the reliability of that information and addresses the criteria that should be…

Pestel, Beverly C.; Engeldinger, Eugene A.

1992-01-01

229

Gapminder: An AP Human Geography Lab Assignment  

ERIC Educational Resources Information Center

|This lesson is designed as a lab assignment for Advanced Placement (AP) Human Geography students wherein they use the popular Gapminder web site to compare levels of development in countries from different world regions. For this lesson, it is important for the teacher to practice with Gapminder before giving the assignment to students. (Contains…

Keller, Kenneth H.

2012-01-01

230

Ejs Intro 2DMotionLab Model  

NSDL National Science Digital Library

The Introductory Physics 2D (Projectile) Motion Lab program asks students to develop a model for a ball with projectile motion. It is distributed as a ready-to-run (compiled) Java archive. Double-clicking the ejs_intro_2DMotionLab.jar file will run the program if Java is installed. In order to modify this simulation (and see how it is designed), if you have Ejs installed, you can right-click within the simulation window and select Open Ejs Model from the pop-up menu. Information about Ejs (Easy Java Simulations) is available at: http://www.um.es/fem/Ejs/. The Intro 2D Motion Lab program is one of a suite of Easy Java Simulations (Ejs) models used in Introductory Physics Labs. Ejs, a part of the Open Source Physics Project, and is designed to make it easier to access, modify and generate computer models. Additional models can be found by searching ComPADRE for Ejs.

Cox, Anne; Christian, Wolfgang; Belloni, Mario

2008-05-30

231

The Greening of the National Labs  

Microsoft Academic Search

The big three weapons laboratories - Los Alamos, Livermore, and Sandia - could face dramatic changes in the way they do business if a proposal made by Representative George Brown (D-CA) is enacted. Brown, chairman of the House Science Committee, introduced a bill last week that would consolidate nuclear weapons R D from several labs (without saying at which sites

Eliot Marshall

1993-01-01

232

Ethics and the student computer lab  

Microsoft Academic Search

This article discusses the role of ethics as it relates to a student computer lab in a college setting. The use of the computer as a necessity for education provides the background for a sample case study involving a breach of ethical conduct. The technical and administrative solutions to the sample case are described. Proposed solutions to prevent future breaches

Atefeh Sadri McCampbell; Fred Liedlich

1996-01-01

233

Medical Lab Technician. Post Secondary Curriculum Guide.  

ERIC Educational Resources Information Center

Intended to provide a model for organizing vocational instructional content, this curriculum guide consists of information pertinent to conducting a postsecondary level course for training medical lab technicians. While the guide is primarily oriented towards the classroom, whether as a primary resource or as a supplement to other teaching…

Simpson, Bruce; And Others

234

Data Acquisition Student Guide: Electro Cardiograph Lab  

NSDL National Science Digital Library

The purpose of this lab is to introduce students to biological electrical signals and how they can be captured. Users must create a free, quick login in order to download the materials. The materials are contained in a zipped file, and include three jpg files and two Microsoft Word Doc files. A quick, free login is required to access the materials.

2011-10-18

235

Favorite Labs from Outstanding Teachers. Monograph VII.  

ERIC Educational Resources Information Center

This monograph is the first attempt to collect and share some of the teaching techniques, activities, and ideas of former recipients of the Outstanding Biology Teacher Award. The lessons are organized into topical themes to facilitate their incorporation into standard curriculum. The manual is divided into two main sections, "Labs" and "Ideas."…

Sheldon, Daniel S., Ed.; Penick, John E., Ed.

236

Encouraging Creativity in the Science Lab  

ERIC Educational Resources Information Center

|Although science is a creative endeavor (NRC 1996, p. 46), many students think they are not encouraged--or even allowed--to be creative in the laboratory. When students think there is only one correct way to do a lab, their creativity is inhibited. Park and Seung (2008) argue for the importance of creativity in science classrooms and for the…

Eyster, Linda

2010-01-01

237

iLabs Software Architecture Presentation  

NSDL National Science Digital Library

Explore the iLab Software Architecture via this presentation and learn about how this unique application allows multiple users to access live electronics equipment and devices via the internet. Sign up for a free user account at http://ilabs.mit.edu .

2011-02-09

238

Transducer research at Bell Labs until 1975  

Microsoft Academic Search

Transducer work in the Acoustics Research Department of Bell Labs from about 1960 to 1975 was focussed on electret-based devices. The first such systems were electret headphones which demonstrated the usefulness of this principle in the sense that no dc-bias was required and that the systems were very sensitive, of high quality, and of simple design. This was followed by

Gerhard M. Sessler

2001-01-01

239

UVA Virtual Lab: Van de Graaff Generators  

NSDL National Science Digital Library

These series of pages provide a detailed tutorial on the principals behind the operation of a Van de Graaf generator through short animations. It is part of the University of Virginia Virtual Lab collection that covers the topics of electricity and magnetism, nanoscience, and microelectronics. This project is supported by grants from the National Science Foundation, the University of Virginia, IBM, and Discreet Corporation.

Bean, John

2010-12-23

240

Technology Rich Biology Labs: Effects of Misconceptions.  

ERIC Educational Resources Information Center

|This paper describes a study conducted on the lab sections of the general biology course for non-science majors at the University of New England, and reports findings of student misconceptions about photosynthesis and the mass/carbon uptake during plant growth. The current study placed high technology analytic tools in the hands of introductory…

Kuech, Robert; Zogg, Gregory; Zeeman, Stephan; Johnson, Mark

241

A "Language Lab" for Architectural Design.  

ERIC Educational Resources Information Center

|This paper discusses a "language lab" strategy in which traditional studio learning may be supplemented by language lessons using computer graphics techniques to teach architectural grammar, a body of elements and principles that govern the design of buildings belonging to a particular architectural theory or style. Two methods of teaching Frank…

Mackenzie, Arch; And Others

242

Prototype Plasma Dynamo Experiments  

NASA Astrophysics Data System (ADS)

The Madison Plasma Dynamo Experiment (MPDX) is under construction to explore the self-excitation processes of a range of astrophysical dynamos. NIMROD simulations of von K'arm'an flow, in which the upper and lower hemispheres of the plasma are spun in opposite directions, have shown that the resulting two vortex flow can produce a dynamo when the magnetic Reynolds number is sufficiently high. This poster discusses prototype experiments on the Plasma Couette Experiment (PCX) to create von K'arm'an flow. The PCX (like the MPDX) uses an axisymmetric multicusp plasma confinement scheme that works in tandem with electrodes of alternating bias to create flow at the plasma boundary via ExB drift. This poster will review the theory with an emphasis on requirements on the plasma parameters and then show that the measured plasma parameters (ne 10^17 m-3, Te˜ 10 eV) and flow speeds of 10 km/sec are high enough to self-excite, but are in a regime in which Hall MHD will likely be important. Higher densities (possible with higher power LaB6 cathodes) will be required to operate in the MHD regime. Work supported by NSF.

Weisberg, David; Forest, Cary; Collins, Cami; Katz, Noam; Khalzov, Ivan; Wallace, John; Clark, Mike

2010-11-01

243

Using Legos and RoboLab (LabVIEW) with elementary school children  

Microsoft Academic Search

This work-in progress presentation describes the use of a Lego robotics kit and RoboLab software to meet the science, math and technology standards of local elementary school curricula. The presentation includes a demonstration by a kindergartener. The instructional materials used include a standard Lego Mindstorms kit and the Robolab. Robolab is based on LabVIEW and retains the iconic programming interface.

E. Wang; R. Wang

2001-01-01

244

Instrumentation and Equipment for Three Independent Research Labs  

Microsoft Academic Search

Completed in 2011, Albright's new Science Center includes three independent student and faculty research labs in Biology, Chemistry\\/Biochemistry, and Physics (separate from teaching labs). Providing independent research facilities, they eliminate disruptions in classrooms and teaching labs, encourage and accommodate increased student interest, and stimulate advanced research. The DOE grant of $369,943 enabled Albright to equip these advanced labs for 21st

Darlene Roth

2012-01-01

245

EcoLab: Agent Based Modeling for C++ programmers  

Microsoft Academic Search

\\\\EcoLab{} is an agent based modeling system for C++ programmers, strongly\\u000ainfluenced by the design of Swarm. This paper is just a brief outline of\\u000a\\\\EcoLab's features, more details can be found in other published articles,\\u000adocumentation and source code from the \\\\EcoLab{} website.

Russell K. Standish; Richard Leow

2004-01-01

246

Student plagiarism and faculty responsibility in undergraduate engineering labs  

Microsoft Academic Search

In undergraduate engineering labs, lab reports are routinely copied. By ignoring this form of plagiarism, teaching assistants and lab technicians neglect their role responsibility. By designing courses that facilitate it, however inadvertently, professors neglect their causal responsibility. Using the case of one university, we show via interviews and observation that such routine copying and faculty negligence are rampant. We suggest

Ashvin Parameswaran; Poornima Devi

2006-01-01

247

Student Plagiarism and Faculty Responsibility in Undergraduate Engineering Labs  

ERIC Educational Resources Information Center

|In undergraduate engineering labs, lab reports are routinely copied. By ignoring this form of plagiarism, teaching assistants and lab technicians neglect their role responsibility. By designing courses that facilitate it, however inadvertently, professors neglect their causal responsibility. Using the case of one university, we show via…

Parameswaran, Ashvin; Devi, Poornima

2006-01-01

248

Development of a remote lab for electrical engineering program  

Microsoft Academic Search

A remote lab for electrical engineering experiments has been designed and implemented. This has been intended as a platform that supports existing traditional labs by offering lab experiments that serve some of the student learning outcomes of the program. This offers fully interactive environment to the remote user. A dedicated architecture that meets network security and equipment safety requirements has

Asma Khalil; Mazen Hasna; Mohieddine Benammar; Mohamed Chaabane; Chokri Ben Amar

2009-01-01

249

Student Plagiarism and Faculty Responsibility in Undergraduate Engineering Labs  

ERIC Educational Resources Information Center

In undergraduate engineering labs, lab reports are routinely copied. By ignoring this form of plagiarism, teaching assistants and lab technicians neglect their role responsibility. By designing courses that facilitate it, however inadvertently, professors neglect their causal responsibility. Using the case of one university, we show via interviews…

Parameswaran, Ashvin; Devi, Poornima

2006-01-01

250

A One-Hour Practical Lab Exam for Organic Chemistry  

ERIC Educational Resources Information Center

|A lab practical exam for second-year organic chemistry is presented that tests multiple lab skills and theory that the students have acquired directly from laboratory experiences. This exam motivates students to learn lab skills and is an effective end-of-term test for many of those skills. (Contains 2 figures.)|

Neeland, Edward G.

2007-01-01

251

Creating Multimedia/MBL Labs for Introductory General Physics Courses  

NSDL National Science Digital Library

This article describes the features of and process involved in creating a new set of labs at the University of Nebraska-Lincoln. The labs are designed for a two-semester introductory algebra-based physics course in the âlearning cycleâ format. The experiences of six graduate students who developed, tested, evaluated, and rewrote lab lessons is also described.

Patterson, Evelyn; Fuller, Robert G.

2006-06-19

252

Experimental, cooperative labs in a first course in computer architecture  

Microsoft Academic Search

Laboratory sessions for a first course in computer architecture require a considerable amount of thought. This is especially true if one of the goals of these labs is to capture, in a cooperative learning environment, some of the scientific method that is inherent in physical science labs. This paper describes the nature of these labs and gives examples. In addition,

Patricia J. Teller

1997-01-01

253

Constructing the Components of a Lab Report Using Peer Review  

ERIC Educational Resources Information Center

A protocol that emphasizes lab report writing using a piecemeal approach coupled with peer review is described. As the lab course progresses, the focus of the report writing changes sequentially through the abstract and introduction, the discussion, and the procedure. Two styles of lab programs are presented. One style rotates the students through…

Berry, David E.; Fawkes, Kelli L.

2010-01-01

254

Ion source with LaB6 hollow cathode for a diagnostic neutral beam injector  

NASA Astrophysics Data System (ADS)

In this article ion source capable of providing 8 A, 54 keV proton beam in maximum 3 s pulses is described. A general description of the diagnostic injector based on this ion source is also given. The ion beam is extracted and accelerated by a four-electrode multiaperture ion-optical system. In the ion source, hydrogen (deuterium) plasma is generated by an arc discharge plasma box with a hot LaB6 cathode. The plasma jet diverging from a small anode orifice enters the plasma expansion volume with a peripheral multipole magnetic field and after partial reflection from this field forms a uniform plasma emitter of 160 mm in diameter in the plasma grid plane. The plasma box operates with an arc current of 350-700 A, providing more than 75% of full energy specie in the extracted ion beam. The ion beam is subsequently neutralized in a hydrogen target with ~50% efficiency and is focused 4 m downstream from the ion source that is provided by a spherical shape of the grids. The beam angular divergence is 0.6°. The ion source is used for plasma diagnostics at Alcator C-mod tokamak.

Deichuli, P. P.; Abdrashitov, G. F.; Ivanov, A. A.; Kolmogorov, V. V.; Mishagin, V. V.; Shul'Zhenko, G. I.; Stupishin, N. V.; Beals, D.; Granetz, R.

2006-03-01

255

78 FR 60245 - Privacy Act Systems of Records; LabWare Laboratory Information Management System  

Federal Register 2010, 2011, 2012, 2013

...Records; LabWare Laboratory Information Management System AGENCY: Animal and...is the LabWare Laboratory Information Management System, USDA-APHIS-19...entitled LabWare Laboratory Information Management System (LabWare...

2013-10-01

256

Jefferson Lab: A Long Decade of Physics  

SciTech Connect

Jefferson Lab was created in 1984 and started operating in about 1996. 2011 is an appropriate time to try to take a look at the results that have appeared, what has been learned, and what has been exciting for our scientific community. Rather than attempt to construct a coherent view with a single author or at least a small number, we have, instead, invited small groups of people who have been intimately involved in the work itself to make contributions. These people are accelerator experts, experimentalists and theorists, staff and users. We have, in the main, sought reviews of the actual sub-fields. The primary exception is the first paper, which sets the scene as it was, in one person's view, at the beginning of Jefferson Lab. In reviewing the material as it appeared, I was impressed by the breadth of the material. Major advances are documented from form factors to structure functions, from spectroscopy to physics beyond the standard model of nuclear and particle physics. Recognition of the part played by spin, the helicities of the beams, the polarizations of the targets, and the polarizations of final state particles, is inescapable. Access to the weak interaction amplitudes through measurements of the parity violating asymmetries has led to quantification of the strange content of the nucleon and the neutron radius of lead, and to measurements of the electroweak mixing angle. Lattice QCD calculations flourished and are setting the platform for understanding of the spectroscopy of baryons and mesons. But the star of the game was the accelerator. Its performance enabled the physics and also the use of the technology to generate a powerful free electron laser. These important pieces of Jefferson Lab physics are given their place. As the third Director of Jefferson Lab, and on behalf of the other physicists and others presently associated with the lab, I would like to express my admiration and gratitude for the efforts of the directors, chief scientists, associate directors, physicists, engineers, technicians and administrators who made it all possible. In sum, we should celebrate the science that Jefferson Lab has realized in this, its first long decade of physics.

Hugh Montgomery

2011-06-01

257

LAB and other lithospheric discontinuities below Cratons  

NASA Astrophysics Data System (ADS)

Cratons are extremely stable continental areas of the Earth's crust, which have been formed and remained largely unchanged since Precambrian. However, their formation and how they survived destruction over billions of years remains a subject of debate. Seismic properties of the cratonic lithosphere re?ect its composition and physical state and obtain basic constraints on processes of the formation and evolution of continents. Insight on these issues may be gained by determining the depth and the nature of the Lithosphere-Asthenosphere Boundary (LAB), which is a necessary element of the plate tectonic theory. However, It has proved quite "elusive" beneath the oldest continental areas. What is missing to date is a consensus on the feature that would correspond to the LAB and whether such a feature exists everywhere beneath cratons. The relatively recently developed S receiver function technique employing S-to-P conversions appears promising for detecting the LAB with a sufficiently high resolution and density. A growing number of regional observations obtained from S receiver function studies has detected discontinuities characterized by a significant negative velocity contrast in the upper mantle. However, challenges still remain in detecting the S-to-P conversions from the LAB beneath the Precambrian cratons. Some recent SRF studies observed a deep (> 160 km) negative velocity contrast beneath cratons and interpreted it as the LAB. For example, a deep LAB at about 250 km was reported beneath the Kalahari craton by different authors. Similar results were also obtained beneath some parts of the Canadian shield, East European Craton, Australia, the Arabian Shield and Tanzania craton. In contrast, other SRF studies found no evidence for negative discontinuities at these depths in the North American craton, in Kalahari craton or in Australia. Instead they revealed a very sharp negative velocity gradient at much shallower depth (60-150 km), leading some authors to infer that the cratonic lithosphere may be considerably thinner than expected, contradicting tomographic and other geophysical or geochemical studies. Moreover, this finding contrasts also with other cratonic regions where SRFs clearly found an observable LAB discontinuity at depths of more than 160 km. To solve this problem, a concept of a "Mid-Lithospheric Discontinuity" (MLD) has been developed. The MLD is proposed as a global characteristic of Precambrian lithosphere, which had been consistently found as the 8° discontinuity within the continental lithosphere in the analysis of long-range seismic profiles. The nature of the MLD remains, however, uncertain, and may be attributed to accumulated melts, presence of fluids, lithospheric stacking, remnants of fossil subduction interfaces or change in anisotropic properties. Such a feature would have implications for the formation and evolution of the continents. Indeed, issues related to the unambiguous detection of MLD and the controversial LAB beneath the cratonic regions of the globe still remain contentious and therefore further work is required to resolve this issue. I will concentrate on this topic and present some new results from Kalahari craton, Scandinavia and eastern Europe.

Sodoudi, Forough

2013-04-01

258

Harmonic Lasing Characterization at Jefferson Lab  

SciTech Connect

Harmonic lasing is normally suppressed because of lasing at the fundamental wavelength. It can, however, be achieved by using any of several methods that suppress fundamental lasing. In this paper we discuss two methods used at Jefferson Lab. The first is to use the characteristics of dielectric coatings to allow harmonic lasing at cavity lengths longer than the synchronous length for the fundamental. The second is to use a dielectric coating that has little reflectivity at the fundamental. This allows us to directly compare fundamental and harmonic lasing with the same optical resonator and electron beam. We present measurement carried out at Jefferson Lab using the IR Upgrade FEL operating at 0.53, 0.94, 1.04, 1.6, and 2.8 microns in which both schemes are used to produce lasing at both the 3rd and 5th harmonic of the fundamental.

Stephen Benson; Michelle D. Shinn

2006-08-27

259

Jefferson Lab Data Acquisition Run Control System  

SciTech Connect

A general overview of the Jefferson Lab data acquisition run control system is presented. This run control system is designed to operate the configuration, control, and monitoring of all Jefferson Lab experiments. It controls data-taking activities by coordinating the operation of DAQ sub-systems, online software components and third-party software such as external slow control systems. The main, unique feature which sets this system apart from conventional systems is its incorporation of intelligent agent concepts. Intelligent agents are autonomous programs which interact with each other through certain protocols on a peer-to-peer level. In this case, the protocols and standards used come from the domain-independent Foundation for Intelligent Physical Agents (FIPA), and the implementation used is the Java Agent Development Framework (JADE). A lightweight, XML/RDF-based language was developed to standardize the description of the run control system for configuration purposes.

Vardan Gyurjyan; Carl Timmer; David Abbott; William Heyes; Edward Jastrzembski; David Lawrence; Elliott Wolin

2004-10-01

260

CMST Summer Institute Interactive Physics Lab Guide  

Microsoft Academic Search

98 page Interactive Physics Lab Guide including labs on:\\u000aTITLE\\u000aEQUIPMENT\\u000aHooke's Law\\u000asprings\\u000aCons of Energy: IP Sim: stopping d vs V,m,g \\u000aIP \\u000aRange of a Projectile\\u000aCPO: marble launchers\\u000aNewton's Second Law\\u000aCPO: cars & ramps\\u000aAtwood Machine\\u000aAtwood Pulleys\\u000aCircular Motion Dynamics\\u000aCircular Motion Apparatus\\u000aConservation of Energy: Rollercoasters\\u000aCPO: Rollercoaster \\u000aPlanetary Motion: Kepler's 1st & 2nd

Steve Whitman

2005-01-01

261

Measuring the Gravity Field: "The Stairwell Lab"  

NSDL National Science Digital Library

Students will prepare for the lab by reading a description of gravity meter operation. After a brief quiz, the students will assemble with the meter in the stairwell of the building and measure the elevation to each level. After this, they will take multiple measurements on each level going up the stairwell, and then repeat the measurements on the way down, making sure to record the data values and the time. They will then convert the raw data to mGal using the conversion factor from the meter, and then use the data from the lower level to correct for drift. The corrected data are then plotted vs. elevation, a slope determined and the slope compared to the elevation correction term. The students will then write a lab report describing the procedure, presenting the data and their analysis, example calculations and their results. Has minimal/no quantitative component

Peavy, Samuel T.

262

Teaching DSP First with LabVIEW  

Microsoft Academic Search

The proponents of graphical programming (that is using graphics to program a computer, not programming a computer to do graphics) claim graphical programming is better than text-based programming; however text-based programmers far out number graphics-based programmers. This paper describes the preliminary developments of comparing the use of LabVIEW (a graphical programming language) to MATLAB (a text-based language) in teaching discrete-time

Mark A. Yoder; Bruce A. Black

2006-01-01

263

Hysteresis measurement in LabView  

Microsoft Academic Search

This paper deals with the computer-aided automated magnetic scalar hysteresis measurement on ferromagnetic toroidal-shape material. The measurement has been developed in LabView environment using National Instrument Data Acquisition Cards. The measurement technique of symmetric minor loops and first-order reversal curves are presented. It is necessary to measure the magnetic hysteresis curves of ferromagnetic material to describe the material from magnetic

Péter Kis; Miklós Kuczmann; János Füzi; Amália Iványi

2004-01-01

264

Online Writing Lab (OWL) at Purdue  

NSDL National Science Digital Library

Purdue University's Online Writing Lab (OWL) offers over 100 handouts on English writing skills. The collection could be called an online grammar book or a basic writing course. Categories covered include sentences, punctuation, parts of speech, spelling, methods of citing sources in research paper writing, English as a second language, and general writing concerns such as writers block, proofreading, non-sexist language, resume writing, business and professional writing, and coping with writing anxiety. http://owl.english.purdue.edu/

265

Integrated optics for Lab-On-Chip  

NASA Astrophysics Data System (ADS)

The miniaturization of traditional chemical and biochemical functionalities called Lab-On-Chip has many advantageous over existing methods, such as portability, small sample size, multiplexing and simpler automation and standardization. In recent years, the integration of microfluidic and microoptical elements together onto monolithic platforms has led to the new term optofluidics. We present novel optofluidic devices based on integrated waveguides, microfluidic channels and high-index fluids. Such devices have a variety of applications including label-free biochemical sensing and telecommunications.

Gu, Yu; Crespi, Andrea; Mariani, Lisa; Valentino, Gianna; Cerullo, Giulio; Osellame, Roberto

2013-03-01

266

Nanophotonics for Lab-on-Chip Applications  

Microsoft Academic Search

Optical methods are the preferred measurement techniques for biosensors and lab-on-chip applications. Their key properties\\u000a are sensitivity, selectivity and robustness. To simplify the systems and their operation, it is desirable to employ label-free\\u000a optical methods, requiring the functionalization of interfaces. Evanescent electromagnetic waves are probing the optical proper\\u000a ties near the interfaces, a few 100 nm deep into the sample

Peter Seitz; L. Breguet

2009-01-01

267

Multigenre Lab Reports: Connecting Literacy and Science  

NSDL National Science Digital Library

The development of communication skills is a key component in any science program but most students don't see the connection between science and writing. Connect literacy and science by using this hands-on activity that is a fun alternative to traditional lab report writing because students can use whatever genre they think will best communicate what they learned in a science unit, such as comic strips or stories.

Rochwerger, Leonora; Peterson, Shelley S.; Calovini, Theresa

2006-04-01

268

Exploiting relaxation in local search for LABS  

Microsoft Academic Search

Branch-and-bound uses relaxation to prune search trees but sometimes scales poorly to large problems. Conversely, local search\\u000a often scales well but may be unable to find optimal solutions. Both phenomena occur in the construction of low-autocorrelation\\u000a binary sequences (LABS), a problem arising in communication engineering. This paper proposes a hybrid approach to optimization:\\u000a using relaxation to prune local search spaces.

Steven David Prestwich

2007-01-01

269

Making Guided Labs More Student Centered  

NASA Astrophysics Data System (ADS)

Physics education research implies that students learn better through student centered inquiry, or self-discovery. We discuss steps to modify an existing guided lab to make it more student centered. Examples from our physical science non-sequence service course will be presented. For this course explicit content goals are abandoned in favor of improving students' ability to think scientifically. The pros and cons of this approach will also be touched upon.

Coffey, Timothy

2010-03-01

270

University of Delaware: Synoptic Climatology Lab  

NSDL National Science Digital Library

"The synoptic climatology group performs research involving numerous applied climatological issues that affect humans and other organisms around the world." This University of Delaware website presents the lab's research in six main topics: Heat/Health Watch-Warning System (HHWWS); Ongoing Climate and Health Research; Applied Climate Indices; Air Mass Monitoring and Classification; International Projects; and Other Research. Within each topic, users can find publications, slide shows, and brochures illustrating the specific research goals, objectives, and conclusions.

271

Berkeley Lab Computing Sciences: Accelerating Scientific Discovery  

SciTech Connect

Scientists today rely on advances in computer science, mathematics, and computational science, as well as large-scale computing and networking facilities, to increase our understanding of ourselves, our planet, and our universe. Berkeley Lab's Computing Sciences organization researches, develops, and deploys new tools and technologies to meet these needs and to advance research in such areas as global climate change, combustion, fusion energy, nanotechnology, biology, and astrophysics.

Hules, John A

2008-12-12

272

Depositional Environments and Geologic History Labs  

NSDL National Science Digital Library

The goal of this pair of labs is for the students to learn to apply rock and fossil identification skills to determining rock formations, sedimentary depositional environments, age ranges, and, ultimately, to writing a geologic history of a sequence of rocks from Bryce, Zion, and Grand Canyons. During the first of the two labs, the students learn to make fossil and sedimentary structures identifications. They add these skills to their rock and mineral identification skills to make interpretations of the sedimentary environments along a generalized profile from terrestrial to offshore locations. During the second lab, they apply these skills to a sequence of rocks from the southwestern U.S. to interpret the environmental changes that have occurred over time. They also begin to learn how to use fossils to determine age ranges for these changing events. Once they put together all of their data, they construct a stratigraphic column and piece together a written narrative of the geologic history of the area. The students work in groups to collect their data and determine their stratigraphy. They write their geologic histories individually. The students learn how to apply their skills and knowledge to make interpretations and also learn how to support their determinations with data.

Waller, Maria; Gilbert, Kathy

273

The EG4 Experiment at Jefferson Lab  

SciTech Connect

The main physics goal of the CLAS EG4 experiment at Jefferson Lab is to measure the generalized GDH sum for the proton and the neutron at very low Q{sup 2} down to Q{sup 2} = 0.015 (GeV/c){sup 2}(inclusive channels). The same data can be used to extract asymmetries of pion electroproduction in the resonance region (exclusive channels). An overview of the experiment is presented here, as well as the analysis status of both inclusive and exclusive analyses. Some preliminary results on the single-target and the beam-target asymmetries of charged pion electroproductions are presented.

Zheng, X. [Department of Physics, University of Virginia, 382 McCormick Rd, Charlottesville, VA 22904 (United States)

2009-07-27

274

UVA Virtual Lab: Resistor Waterwheel Analogy  

NSDL National Science Digital Library

These pages provide a water model of an electrical circuit. In this case, the gerbil running in its wheel and the bucket pump are the equivalent of a battery. The water represents the electrons in the circuit. The height represents the voltage. The wheel represents the resistor. As the electrons fall from high to low, energy is available to do work. This model is part of the UVA Virtual Lab collection. This project is supported by grants from the National Science Foundation, the University of Virginia, IBM, and Discreet Corporation.

Bean, John

2010-12-23

275

Strangeness Physics with CLAS at Jefferson Lab  

NASA Astrophysics Data System (ADS)

We review recent developments in strangeness photo- and electro- production off the proton and neutron, as investigated using CLAS in Hall B at Jefferson Lab. By measuring sufficient spin observables one can decompose the reaction mechanism into elementary amplitudes. We discuss progress toward this end in recent data from CLAS, including cross sections and spin observables. We next discuss new results on the mass distribution of the ?(1405), which shows signs of being a composite meson-baryon object of mixed isospin. The work on other hyperons such as the ? resonances will be mentioned, and future prospects for the CLAS program outlined.

Schumacher, Reinhard

2010-08-01

276

Physics with CLAS at Jefferson Lab  

SciTech Connect

The CLAS collaboration at Jefferson Lab is engaged in a wide range of experiments, covering mostly meson and baryon spectroscopy, nucleon structure through elastic and deep inelastic scattering, nuclear transparency and nucleon correlations in nuclei. These experiments use the CEBAF highly polarized electron beam, or the secondary tagged photon beam, together with the CLAS detector (CEBAF Large Acceptance Spectrometer), to which specific experiments bring additional equipment. In this talk, examples of recent results on subjects mentioned hereabove will be given, with special emphasis on nucleon structure. A short description of the planned upgrade from CLAS to CLAS12 is presented.

Michel Garcon (for the CLAS Collaboration)

2006-05-22

277

Lab 1 - Introduction to Quartus II  

NSDL National Science Digital Library

This lab activity from the Digital Logic Project is designed to familiarize students with using many of the common aspects of the Quartus II software for digital logic design. Students will create a new project, create a new vhdl file, use the MegaWizard Plug-In Manager, compile the design, plan and manage I/O assignments, apply timing analysis using the TimeQuest Timing Analyzer, write Synopsys Design Contraint (SDC) files, and program a design onto the Altera DE2 Development Board.

2012-07-10

278

Mag Lab U: Interactive Tutorials - Oersted's Compass  

NSDL National Science Digital Library

This interactive tutorial simulates the simple, yet groundbreaking, 1820 experiment that paved the way for understanding the relationship between electricity and magnetism. It is a virtual version of Hans Christian Oersted's voltaic pile battery outfitted with a live electrical wire. Students can turn the current on/off and also flip the battery. Watch what happens to the nearby compass to see why this experiment rocked the scientific world of the early 1800's. Mag Lab U is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.

2011-01-23

279

Dauphin Island Sea Lab Discovery Hall Programs  

NSDL National Science Digital Library

Respected institution offers year-round marine science programs. School year programs for K-12 classes include half-day lecture and lab or fieldtrip on oceanography, hurricanes, other topics; reservations required. Summer programs include: 4-week course or high school students; 1-week camp for middle school students; half-day programs for ages 5-11. Four-day teacher workshops cover regional ecology; graduate credit available. Special workshops for Alabama teachers foster relationships between teachers and scientists. Information on program application process, prerequisites, fees.

280

Mag Lab U: Interactive Java Tutorials  

NSDL National Science Digital Library

This is a collection of more than 60 Java tutorials on concepts, laws, and historical milestones associated with electricity and magnetism. The simulations range in complexity from very simple to highly advanced. Topics include models for electricity, DC current, AC current, capacitance, electromagnetic induction, magnetic field around a wire, and more. The simulations of historical instruments help users visualize the work of pioneers in electricity and magnetism. Mag Lab U is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.

Davidson, Michael

2010-05-12

281

Mag Lab U: Interactive Tutorials - Torsion Balance  

NSDL National Science Digital Library

This interactive Java tutorial allows users to play with a replica of the historic torsion balance used by Coulomb in his 18th-century experiments to measure the electrostatic force between charges. By carefully recording the measurements he obtained with his torsion balance, Coulomb was able to establish the law that bears his name. Coloumb's law states that the attraction or repulsion force between two electrical charges is proportional to their product and inversely proportional to the square of their distance apart. Mag Lab U is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.

2010-05-25

282

Renovations to a plasma teaching laboratory  

SciTech Connect

With the aid of a National Science Foundation teaching equipment grant, replacement of dated equipment and the implementation of new experiments have upgraded the University of Michigan Department of Nuclear Engineering's 25-yr-old plasma laboratory course. The course teaches seniors and first-year graduate students methods of plasma production as well as plasma diagnostics. This paper describes four new experiments as well as the highlights of some of the equipment upgrades. The plasma lab course has introduced three new diagnostic techniques and one new plasma generation experiment in the past two years. They are (a) probe measurements of the electron energy distribution function, (b) laser/Schlieren photos of shock waves produced by a pulsed plasma, (c) a laser deflection technique for determining hot gas densities, and (d) capacitively coupled radio-frequency plasma generation.

Brake, M.L.; Lee, M.; Ventzek, P.; Passow, M. (Univ. of Michigan, Ann Arbor (United States))

1991-01-01

283

The Work Smart Standards process at Jefferson Lab  

SciTech Connect

The Thomas Jefferson National Accelerator Facility (Jefferson Lab) has developed a set of Work Smart Standards for the Lab. The effort incorporated the Lab`s performance-based contract into the Necessary and Sufficient (N and S) Standards identification process of the DOE. A rigorous protocol identified hazards in the workplace and standards that provide adequate protection of workers, public, and the environment at reasonable cost. The intensive process was a joint effort between the Lab and DOE and it required trained teams of knowledgeable experts in three fields: (1) actual required work conditions at Jefferson Lab; (2) laws, regulations, DOE directives and performance-based contracts; and (3) Environmental Health and Safety (EH and S), Rad Con, and QA. The criteria for selection of the teams, the database designed and used for the process, and lessons learned are discussed.

Boyce, J.R.; Prior, S.; Hanson, E. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Morgan, B. [Dept. of Energy, Newport News, VA (United States). Thomas Jefferson National Accelerator Facility Site Office

1997-12-01

284

The Mysterious Death: An HPLC Lab Experiment. An Undergraduate Forensic Lab  

ERIC Educational Resources Information Center

|A high-performance liquid chromatography (HPLC) laboratory experiment based on the separation of four prescription drugs (disopyramide, lidocaine, procainamide, and quinidine) is presented. The experiment is set within the forensic science context of the discovery of a patient's mysterious death where a drug overdose is suspected. Each lab group…

Beussman, Douglas J.

2007-01-01

285

Stream piracy in the Black Hills: A geomorphology lab exercise  

USGS Publications Warehouse

The Black Hills of South Dakota exhibits many fine examples of stream piracy that are very suitable for teaching geomorphology lab exercises. This lab goes beyond standard topographic map interpretation by using geologic maps, well logs, gravel provenance and other types of data to teach students about stream piracy. Using a step-by-step method in which the lab exercises ramp up in difficulty, students hone their skills in deductive reasoning and data assimilation. The first exercises deal with the identification of stream piracy at a variety of spatial scales and the lab culminates with an exercise on landscape evolution and drainage rearrangement.

Zaprowski, B. J.; Evenson, E. B.; Epstein, J. B.

2002-01-01

286

Computer-Aided Instrumentation in OSU's Machines Lab  

Microsoft Academic Search

An upgrade to OSU's undergraduate electricalmachines lab is currently nearing completion. It featuresthe introduction of digital signal acquisition, processing, anddisplay, utilizing National Instruments\\

Thomas W. Gedra

287

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. BEVATRON SHIELDING - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

288

Nanophotonics for Lab-on-Chip Applications  

NASA Astrophysics Data System (ADS)

Optical methods are the preferred measurement techniques for biosensors and lab-on-chip applications. Their key properties are sensitivity, selectivity and robustness. To simplify the systems and their operation, it is desirable to employ label-free optical methods, requiring the functionalization of interfaces. Evanescent electromagnetic waves are probing the optical proper ties near the interfaces, a few 100 nm deep into the sample fluid. The sensitivity of these measurements can be improved with optical micro-resonators, in particular whispering gallery mode devices. Q factors as high as 2x108 have been achieved in practice. The resulting narrow-linewidth resonances and an unexpected thermo-optic effect make it possible to detect single biomolecules using a label-free biosensor principle. Future generations of biosensors and labs-on-chip for point-of-care and high-troughput screening applications will require large numbers of parallel measurement channels, necessitating optical micro-resonators in array format produced very cost-effectively.

Seitz, Peter

289

Tracker Lab Manual and Workshop Resources  

NSDL National Science Digital Library

This is a set of handouts, a presentation, and videos that one can use for a workshop to teach others how to use Tracker. The resources may also be adapted for students to learn Tracker. Subdocuments for this item contain: presentation slides in PowerPoint a one-page Tracker "cheat sheet" with instructions for the most often-used tasks a sample lab manual with 6 Tracker video analysis labs that include: uniform motion inertial and non-inertial reference frames (Newton's first law) force on a person landing after a jump (Newton's second law) center of mass motion (collision) uniform circular motion of a bicycle wheel conservation of angular momentum of a figure skater all videos and Tracker files for the experiments and presentation source for all handouts that can be edited with LaTeX To open the Tracker file, download and run Tracker from http://www.cabrillo.edu/~dbrown/tracker/. Tracker is free. The videos can be used with other video analysis software; however, the handout has screen captures from Tracker and instructions specifically written for Tracker. All videos maintain the copyright of those who recorded the video and are shared with permission of the video authors. All handouts created by Aaron Titus may be freely edited and redistributed without citation.

Titus, Aaron

2012-06-06

290

PC/104 Embedded IOCs at Jefferson Lab  

SciTech Connect

Jefferson Lab has developed embedded IOCs based on PC/104 single board computers (SBC) for low level control systems. The PC/104 IOCs run EPICS on top of the RTEMS operating system. Two types of control system configurations are used in different applications, PC/104 SBC with commercial PC/104 I/O cards and PC/104 SBC with custom designed FPGA-based boards. RTEMS was built with CEXP shell to run on the PC/104 SBC. CEXP shell provides the function of dynamic object loading, which is similar to the widely used VxWorks operating system. Standard software configurations were setup for PC/104 IOC application development to provide a familiar format for new projects as well as ease the conversion of applications from VME based IOCs to PC/104 IOCs. Many new projects at Jefferson Lab are going to employ PC/104 SBCs as IOCs and some applications have already been running them for accelerator operations. The PC/104 - RTEMS IOC provides a free open source Real-Time Operating System (RTOS), low cost/maintenance, easily installed/ configured, flexible, and reliable solution for accelerator control and 12GeV Upgrade projects.

Jianxun Yan, Trent Allison, Sue Witherspoon, Anthony Cuffe

2009-10-01

291

Computer-based Astronomy Labs for Non-science Majors  

NASA Astrophysics Data System (ADS)

We describe and demonstrate two laboratory exercises, Kepler's Third Law and Stellar Structure, which are being developed for use in an astronomy laboratory class aimed at non-science majors. The labs run with Microsoft's Excel 98 (Macintosh) or Excel 97 (Windows). They can be run in a classroom setting or in an independent learning environment. The intent of the labs is twofold; first and foremost, students learn the subject matter through a series of informational frames. Next, students enhance their understanding by applying their knowledge in lab procedures, while also gaining familiarity with the use and power of a widely-used software package and scientific tool. No mathematical knowledge beyond basic algebra is required to complete the labs or to understand the computations in the spreadsheets, although the students are exposed to the concepts of numerical integration. The labs are contained in Excel workbook files. In the files are multiple spreadsheets, which contain either a frame with information on how to run the lab, material on the subject, or one or more procedures. Excel's VBA macro language is used to automate the labs. The macros are accessed through button interfaces positioned on the spreadsheets. This is done intentionally so that students can focus on learning the subject matter and the basic spreadsheet features without having to learn advanced Excel features all at once. Students open the file and progress through the informational frames to the procedures. After each procedure, student comments and data are automatically recorded in a preformatted Lab Report spreadsheet. Once all procedures have been completed, the student is prompted for a filename in which to save their Lab Report. The lab reports can then be printed or emailed to the instructor. The files will have full worksheet and workbook protection, and will have a "redo" feature at the end of the lab for students who want to repeat a procedure.

Smith, A. B. E.; Murray, S. D.; Ward, R. A.

1998-12-01

292

Guided learning chemistry activities in the physical science (PSCI 1030) lab at Middle Tennessee State University  

Microsoft Academic Search

Guided learning labs as alternatives to traditional style chemistry-related labs were tested in the course, Topics in Physical Science. Guided learning labs emphasized students' conceptual understanding of the science content and actively involved the instructor during the lab. The control group performed traditional lab exorcise while students who carried out the guided learning activities formed the treatment group. Both groups

Barry Farris

2005-01-01

293

Hydraulic Monitoring System Based on LabVIEW  

Microsoft Academic Search

The application of advanced virtual instrument development platform LabVIEW, with hydraulic test bench and sensors, developed a hydraulic monitoring system based on LabVIEW. Introduced the system's hardware and software design, and realized measurement and display of the pressure, flux, temperature, displacement, velocity and acceleration in hydraulic system, and the alarm of system failures, storage, printing and evaluation functions of measuring

Bingsheng Wu; Chaozhi Cai

2008-01-01

294

Implementation of Siemens USS protocol into LabVIEW.  

PubMed

This article gives basic overview of the USS protocol as a communication interface to drive Siemens frequency inverters. It presents our implementation of this protocol into LabVIEW, as there was permanent demand from the community of the users to have native LabVIEW implementation of the USS protocol. It also states encountered problems and their solutions. PMID:21906560

Hosek, P; Diblik, M

2010-03-04

295

The Technology Teaching Lab: Meeting the ISTE Challenge.  

ERIC Educational Resources Information Center

Assessed whether preservice teachers could reach the expectations of the ISTE Profile Standards for Professional Performance through participation in technology teaching labs (2-hour labs running concurrently with preservice methods blocks), noting types of technology infusion used to meet the standards and students' perceived ability following…

Bucci, Terri Teal

2003-01-01

296

Personal Adult Learning Lab (Pall). Implications for Practice.  

ERIC Educational Resources Information Center

|The Personal Adult Learning Lab was establsiehd at the Georgia Center for Continuing Education (GCCE) at the University of Georgia to serve self-directed adult learners and conduct research on self-directed learning. The lab allows adult learners to design, conduct, and evaluate their personal learning experiences while proceeding at their own…

Klippel, Judith A.; And Others

297

Innovative lab experiences for introductory electrical engineering students  

Microsoft Academic Search

In an effort to improve the learning experience of sophomore electrical engineering students, innovative lab exercises have been developed at Western New England College. The traditional lab experiments utilize passive and active elements in prescribed manners to teach students fundamental concepts. The concepts range from simple voltage division to high-order active filter circuits. This paper describes innovations in the laboratory

Steven G. Northrup

2009-01-01

298

Variation in Approaches to Lab Practical Classes among Computing Academics  

Microsoft Academic Search

As part of a wide-ranging phenomenographic study of computing teachers, we explored their varying understandings of the lab practical class and discovered four distinct categories of description of lab practicals. We consider which of these categories appear comparable with non- lecture classes in other disciplines, and which appear distinctive to computing. An awareness of this range of approaches to conducting

Simon; Michael de Raadt; Anne Venables

2007-01-01

299

Online writing labs as sites for community engagement  

Microsoft Academic Search

This dissertation investigates the Community Writing and Education Station (CWEST), a community engagement project that partners a community adult basic literacy program with a university writing lab. The author argues that the community and university partners, the Lafayette Adult Resource Academy (LARA) and the Purdue Writing Lab, offer positive opportunities for sustainable, mutually beneficial, and collaborative engagement because they are

Jaclyn Michelle Wells

2010-01-01

300

In Brief: Russian lab added to Arctic observatory program  

Microsoft Academic Search

A research laboratory in Tiksi, Russia, has been added to five existing Arctic labs that comprise NOAA's Arctic Atmospheric Observatory Program. The lab's location, a few kilometers to the northwest of the new Tiksi weather station in north-central Siberia, was chosen for its clean and clear air that will allow good measurement of aerosols, air chemistry, cloud properties, ozone, solar

Sarah Zielinski

2007-01-01

301

Online Writing Labs as Sites for Community Engagement  

ERIC Educational Resources Information Center

This dissertation investigates the Community Writing and Education Station (CWEST), a community engagement project that partners a community adult basic literacy program with a university writing lab. The author argues that the community and university partners, the Lafayette Adult Resource Academy (LARA) and the Purdue Writing Lab, offer positive…

Wells, Jaclyn Michelle

2010-01-01

302

The Living Labs: Innovation in Real-Life Settings  

ERIC Educational Resources Information Center

|The living lab (LL) is an open innovation ecosystem serving to provide opportunities for local stakeholders to practice research and to experiment with meaningful improvements for cities and other organizations. Living labs aim at involving the user as a cocreator. In this article the relationship between the LLs and a variety of stakeholders is…

Hawk, Nathan; Bartle, Gamin; Romine, Martha

2012-01-01

303

Unified energy conversion, power systems and power electronics lab  

Microsoft Academic Search

This paper introduces an unified laboratory consisting of power systems, power electronics and energy conversions at Oklahoma State University-Tulsa. It presents more on digital data acquisition (DAQ), and virtual instrumentation (VI), the base of our unified lab. The general design of lab setup is described here, and unique designs of front panels and motor mount are discussed in detail. Some

Seungwon An; Swakshar Ray; Thomas W. Gedra

2002-01-01

304

LIVING LAB: User-Driven Innovation for Sustainability  

ERIC Educational Resources Information Center

|Purpose: The purpose of this paper is to summarize and discuss the results from the LIVING LAB design study, a project within the 7th Framework Programme of the European Union. The aim of this project was to develop the conceptual design of the LIVING LAB Research Infrastructure that will be used to research human interaction with, and stimulate…

Liedtke, Christa; Welfens, Maria Jolanta; Rohn, Holger; Nordmann, Julia

2012-01-01

305

Genomics Education in Practice: Evaluation of a Mobile Lab Design  

ERIC Educational Resources Information Center

|Dutch genomics research centers have developed the "DNA labs on the road" to bridge the gap between modern genomics research practice and secondary-school curriculum in the Netherlands. These mobile DNA labs offer upper-secondary students the opportunity to experience genomics research through experiments with laboratory equipment that is not…

Van Mil, Marc H. W.; Boerwinkel, Dirk Jan; Buizer-Voskamp, Jacobine E.; Speksnijder, Annelies; Waarlo, Arend Jan

2010-01-01

306

Labs at Elementary Level Help Bring Science Alive  

ERIC Educational Resources Information Center

|State and district science standards typically call for students to take part in hands-on labs and experiments in the elementary grades. The 1996 National Science Education Standards, which were written by the National Research Council and serve as a reference for many states, emphasize similar activities. Yet the use of even simple labs and…

Cavanagh, Sean

2008-01-01

307

A Computer Lab that Students Use but Never See  

ERIC Educational Resources Information Center

|North Carolina State University may never build another computer lab. Instead the university has installed racks of equipment in windowless rooms where students and professors never go. This article describes a project called the Virtual Computing Lab. Users enter it remotely from their own computers in dormitory rooms or libraries. They get all…

Young, Jeffrey R.

2008-01-01

308

A living lab research approach for mobile TV  

Microsoft Academic Search

More and more, a user centered approach is adopted for information and communication technologies (ICT) innovation research. One of the recently emerging concepts within this research tradition is the so called 'living lab'. A notable example of ICT innovations is the convergence of mobile telephones and television into mobile television. Within this paper, we contend that the living lab concept

Dimitri Schuurman; Tom Evens; Lieven De Marez

2009-01-01

309

The UTPB computer science research lab: running on student power  

Microsoft Academic Search

The University of Texas of the Permian Basin (UTPB) is a small university of approximately 3,300 students. The Computer Science Research Lab at UTPB was founded by a federal grant from the Air Force Office of Scientific Research and consists of both Windows and UNIX networks as well as a Linux Cluster and Lego Robots. The lab is used by

Cherry Keahey Owen; Doug Hale; Ilhyun Lee; Haesun K. Lee

2006-01-01

310

ResLab Performance Testing of Stand-Alone Inverters  

Microsoft Academic Search

ResLab is a testing facility with a range of experience in the testing of Renewable Energy Systems and their components. ResLab also has a key interest in the development of the Renewable Energy Industry and in the improvement of Renewable Energy Systems. This has involved the design of methodologies for testing various systems and their components. One area of interest

N. Dashlooty; N. A. Wilmot; H. Sharma; O. Arteaga; T. L. Pryor

311

Making the Case for Jefferson Lab  

NASA Astrophysics Data System (ADS)

This chapter is a personal account of the initial planning and competition for a new laboratory, which eventually became known as the Thomas Jefferson National Accelerator Facility, with the official nickname "Jefferson Lab." The period covered starts as far back as 1964, with the introduction of quarks, and extends up to the late 1980s after the initial team was assembled, the superconducting design was in place, and construction was well underway. I describe some of the major experiments that were proposed to justify the laboratory, reflect on the present status of those initially proposed experiments, and very briefly outline some of the new ideas that emerged after the laboratory was constructed. The science is presented in a simple manner intended for a lay audience, with some of the ideas illustrated by cartoons that were often used in popular lectures given during this period.

Gross, Franz

2011-05-01

312

Mag Lab U: Interactive Tutorials - Voltaic Pile  

NSDL National Science Digital Library

In this interactive tutorial, users play with a simulated version of the historic "voltaic pile", commonly considered to be the world's first battery. Constructed by 18th-century scientist Alessandro Volta, the voltaic pile consisted of discs of zinc and copper alternated with pasteboard or leather moistened with brine or vinegar. Each three-disc unit comprised a single electric cell capable of producing a current. Volta's invention of the pile device was momentous because it provided the first consistent source of sustained electric current. Mag Lab U is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.

2010-05-26

313

A Bernoulli's Law Lab in a Bottle  

NASA Astrophysics Data System (ADS)

Bernoulli's law is a fundamental relationship in fluid dynamics that is covered in most introductory physics courses. Basically a statement of conservation of energy for an open fluid system, Bernoulli's law is often used in labs and examples to analyze the lift force on a fixed wing or the forces on objects in a fluid flow.1-4 Although these are legitimate uses of the law, they do not introduce students to the way in which several concepts, such as Bernoulli's law and the conservation of mass, are used in combination to study the dynamics of fluid systems. Thus, to give students an easily understandable introduction to this method of analysis, we present a laboratory experience in which the drain time of water flowing out of an inverted soda bottle is measured and calculated for a set of easily interchangeable exit holes.

Guerra, David; Plaisted, Aaron; Smith, Michael

2005-10-01

314

The Jefferson Lab Frozen Spin Target  

SciTech Connect

A frozen spin polarized target, constructed at Jefferson Lab for use inside a large acceptance spectrometer, is described. The target has been utilized for photoproduction measurements with polarized tagged photons of both longitudinal and circular polarization. Protons in TEMPO-doped butanol were dynamically polarized to approximately 90% outside the spectrometer at 5 T and 200-300 mK. Photoproduction data were acquired with the target inside the spectrometer at a frozen-spin temperature of approximately 30 mK with the polarization maintained by a thin, superconducting coil installed inside the target cryostat. A 0.56 T solenoid was used for longitudinal target polarization and a 0.50 T dipole for transverse polarization. Spin relaxation times as high as 4000 hours were observed. We also report polarization results for deuterated propanediol doped with the trityl radical OX063.

Christopher Keith, James Brock, Christopher Carlin, Sara Comer, David Kashy, Josephine McAndrew, David Meekins, Eugene Pasyuk, Joshua Pierce, Mikell Seely

2012-08-01

315

Nucleon spin structure at Jefferson Lab  

SciTech Connect

In the past decade an extensive experimental program to measure the spin structure of the nucleon has been carried out in the three halls at Jefferson Lab. Using a longitudinally polarized beam scattering off longitudinally or transversely polarized 3He, NH3 and ND3 targets, the double spin asymmetries A|| and A[perpendicular] were measured, providing data of impressively high precision that gives a better understanding of the structure of the nucleon in the deep inelastic scattering and the valence quarks regions. The virtual photon asymmetries A1,2 and polarized structure functions g1,2 were also extracted for the proton, neutron and deuteron over large kinematic ranges, allowing the extraction of first moments and the testing of sum rules and duality.

Angela Biselli

2011-10-01

316

The Jefferson Lab Free Electron Laser Program  

NASA Astrophysics Data System (ADS)

The development of superconducting radio frequency (SRF) accelerator technology for CEBAF's nuclear physics program set the stage for its application to a number of other efforts. We describe below the development of the a major advance in Free Electron Laser (FEL) Technology based on SRF linacs. The Jefferson Lab efforts achieved three orders of magnitude increase in the power delivered by FELs and firmly established the viability of energy recovering linac technology. We describe the details of the physics and engineering challenges addressed to accomplish this effort and then discuss some of the applications performed using the light source. We conclude with a look at the planned directions for the program in the future.

Benson, Stephen V.; Douglas, David; Neil, George R.; Shinn, Michelle D.

2011-05-01

317

The Jefferson Lab free electron laser program  

SciTech Connect

The development of superconducting radio frequency (SRF) accelerator technology for CEBAF's nuclear physics program set the stage for its application to a number of other efforts. We describe below the development of the a major advance in Free Electron Laser (FEL) Technology based on SRF linacs. The Jefferson Lab efforts achieved three orders of magnitude increase in the power delivered by FELs and firmly established the viability of energy recovering linac technology. We describe the details of the physics and engineering challenges addressed to accomplish this effort and then discuss some of the applications performed using the light source. We conclude with a look at the planned directions for the program in the future.

Stephen V. Benson, David Douglas, George R. Neil, Michelle D. Shinn

2011-06-01

318

The Cornell Lab of Ornithology: Macaulay Library  

NSDL National Science Digital Library

The Scout Report has never profiled a website that has sections titled "Best of Courtship" or the "Best of Territory Defense", but then again, there are many wonderful surprises contained with the Macaulay Library's Animal Sound & Video Catalog. Housed within Cornell University's Lab of Ornithology, the Animal Sound & Video Catalog contains thousands of audio and video recordings of animals such as the harp seal pup, the golden-fronted woodpecker, and a variety of turkeys. Visitors are welcome to utilize their basic and advanced search engine features to look for specific animals, or they can also browse some of the previously mentioned "Best of" categories. While just listening to (or watching) these animals is fine enough, visitors should also consider viewing the free audio visualization tool offered here. Called "RavenViewer", the application will allow users to watch audio spectrograms, control playback speed, and inspect low-frequency sounds.

319

The Jefferson Lab frozen spin target  

NASA Astrophysics Data System (ADS)

A frozen spin polarized target, constructed at Jefferson Lab for use inside a large acceptance spectrometer, is described. The target has been utilized for photoproduction measurements with polarized tagged photons of both longitudinal and circular polarization. Protons in TEMPO-doped butanol were dynamically polarized to approximately 90% outside the spectrometer at 5 T and 200-300 mK. Photoproduction data were acquired with the target inside the spectrometer at a frozen-spin temperature of approximately 30 mK with the polarization maintained by a thin, superconducting coil installed inside the target cryostat. A 0.56 T solenoid was used for longitudinal target polarization and a 0.50 T dipole for transverse polarization. Spin-lattice relaxation times as high as 4000 h were observed. We also report polarization results for deuterated propanediol doped with the trityl radical OX063.

Keith, C. D.; Brock, J.; Carlin, C.; Comer, S. A.; Kashy, D.; McAndrew, J.; Meekins, D. G.; Pasyuk, E.; Pierce, J. J.; Seely, M. L.

2012-08-01

320

Chemical Lab Safety Rules Learning Module  

NSDL National Science Digital Library

The Southwest Center for Microsystems Education is a Regional Advanced Technology Education Center funded in part by the National Science Foundation. This learning module - Chemical Lab Safety Rules - covers safety rules for one's personal safety when working with and around chemicals, handling and pouring chemicals properly, the specifics for working with solvents vs. corrosives, spill or leak response, and many other areas. An activity and assessment are including in this learning module along with an observation checklist that you could use to observe participants in a laboratory environment and ensure that the safety rules are being followed. Visitors are encouraged to create an account and login in order to access the full set of resources.

2011-09-23

321

Composite Column Design/Test Lab  

NSDL National Science Digital Library

Effective engineered composite design activities require predictive and quantitative methodology. This research incorporates engineering design, using smart spreadsheets, into a laboratory activity focusing on columns made of composite materials. In a previous work, a laboratory activity was developed supporting composite design of polymer matrix composite beams. The present work applies a similar approach expanded to ceramic composites in the form of columns. In the lab, students simulate composite columns and use a smart spreadsheet to help optimize their design for engineering performance, including specific properties. Parameters are discussed and evaluated before the column is made. The composite is then fabricated. Finally, the composite is tested and the experimental data (critical load for columns) is compared to predictions.

Johnson, Craig

2009-09-22

322

Cornell Lab of Ornithology: The Birdhouse Network  

NSDL National Science Digital Library

We're oftentimes overwhelmed with the idea that the natural environment is in a state of seemingly unstoppable decline. One of the greatest causes is destruction of natural habitat. And, loss of nesting spaces for birds is a prime example of a major consequence. This site leads the visitor to a very simple solution that allows one to act locally while thinking globally. The Birdhouse Network website from the Cornell Lab of Ornithology offers all sorts of good information on bird houses, including construction plans to where to put the house(s) once finished. A great resource on the site for those of us who are backyard birders is the Bird Bios section. This area gives short snippets on common backyard birds like the Black-capped Chickadee to the House Sparrow. If you build it, they will come!

323

Design And Non-design Labs: Does Transfer Occur?  

NSDL National Science Digital Library

This paper is the second in the series of three describing a controlled study âTransfer of scientific abilitiesâ. The study was conducted in a large-enrollment introductory physics course taught via Investigative Science Learning Environment. Its goal was to find whether designing their own experiments in labs affects students' approaches to experimental problem solving in new areas of physics and in biology, and their learning of physics concepts. This paper reports on the part of the study that assesses student work while solving an experimental problem in a physics content area not studied in class. For a quantitative evaluation of students' abilities, we used scientific abilities rubrics. We studied the students' lab reports and answers to non-traditional exam problems related to the lab. We evaluated their performance and compared it with the performance of a control group that had the same course but enrolled in non-design labs instead of design labs.

Karelina, Anna; Etkina, Eugenia; Ruibal-Villasenor, Maria; Rosengrant, David; Van Heuvelen, Alan; Hmelo-Silver, Cindy E.

2009-06-08

324

Comparison of ultrasonic and thermospray systems for high performance sample introduction to inductively coupled plasma atomic emission spectrometry  

Microsoft Academic Search

This paper describes detailed work done in our lab to compare analytical figures of merit for pneumatic, ultrasonic and thermospray sample introduction (SI) systems with three different inductively coupled plasma-atomic emission spectrometry (ICP-AES) instruments. One instrument from Leeman Labs, Inc. has an air path echelle spectrometer and a 27 MHz ICP. For low dissolved solid samples with this instrument, we

Timothy S. Conver; John A. Koropchak

1995-01-01

325

Plasma turbulence  

SciTech Connect

The origin of plasma turbulence from currents and spatial gradients in plasmas is described and shown to lead to the dominant transport mechanism in many plasma regimes. A wide variety of turbulent transport mechanism exists in plasmas. In this survey the authors summarize some of the universally observed plasma transport rates.

Horton, W. [Univ. of Texas, Austin, TX (United States). Inst. for Fusion Studies; Hu, G. [Globalstar LP, San Jose, CA (United States)

1998-07-01

326

Dusty plasmas  

Microsoft Academic Search

The properties of dusty plasmas — low-temperature plasmas containing charged macroparticles — are considered. The most important elementary processes in dusty plasmas and the forces acting on dust particles are investigated. The results of experimental and theoretical investigations of different states of strongly nonideal dusty plasmas — crystal-like, liquid-like, gas-like — are summarized. Waves and oscillations in dusty plasmas, as

Vladimir E Fortov; Aleksei G Khrapak; Sergei A Khrapak; Vladimir I Molotkov; Oleg F Petrov

2004-01-01

327

Distributed Energy Communications & Controls, Lab Activities - Summary  

SciTech Connect

The purpose is to develop controls for inverter-based renewable and non-renewable distributed energy systems to provide local voltage, power and power quality support for loads and the power grid. The objectives are to (1) develop adaptive controls for inverter-based distributed energy (DE) systems when there are multiple inverters on the same feeder and (2) determine the impact of high penetration high seasonal energy efficiency ratio (SEER) air conditioning (A/C) units on power systems during sub-transmission faults which can result in an A/C compressor motor stall and assess how inverter-based DE can help to mitigate the stall event. The Distributed Energy Communications & Controls Laboratory (DECC) is a unique facility for studying dynamic voltage, active power (P), non-active power (Q) and power factor control from inverter-based renewable distributed energy (DE) resources. Conventionally, inverter-based DE systems have been designed to provide constant, close to unity power factor and thus not provide any voltage support. The DECC Lab interfaces with the ORNL campus distribution system to provide actual power system testing of the controls approach. Using mathematical software tools and the DECC Lab environment, we are developing and testing local, autonomous and adaptive controls for local voltage control and P & Q control for inverter-based DE. We successfully tested our active and non-active power (P,Q) controls at the DECC laboratory along with voltage regulation controls. The new PQ control along with current limiter controls has been tested on our existing inverter test system. We have tested both non-adaptive and adaptive control modes for the PQ control. We have completed several technical papers on the approaches and results. Electric power distribution systems are experiencing outages due to a phenomenon known as fault induced delayed voltage recovery (FIDVR) due to air conditioning (A/C) compressor motor stall. Local voltage collapse from FIDVR is occurring in part because modern air-conditioner and heat pump compressor motors are much more susceptible to stalling during a voltage sag or dip than older motors. These motors can stall in less than three cycles (0.05 s) when a fault, for example, on the sub-transmission system, causes voltage on the distribution system to sag to 70% or less of nominal. We completed a new test system for A/C compressor motor stall testing at the DECC Lab. The A/C Stall test system is being used to characterize when and how compressor motors stall under low voltage and high compressor pressure conditions. However, instead of using air conditioners, we are using high efficiency heat pumps. We have gathered A/C stall characterization data for both sustained and momentary voltage sags of the test heat pump. At low enough voltage, the heat pump stalls (compressor motor stops and draws 5-6 times normal current in trying to restart) due to low inertia and low torque of the motor. For the momentary sag, we are using a fast acting contactor/switch to quickly switch from nominal to the sagged voltage in cycles.

Rizy, D Tom [ORNL

2010-01-01

328

Plasma jets and plasma bullets  

Microsoft Academic Search

Plasma plumes, or plasma jets, belong to a large family of gas discharges whereby the discharge plasma is extended beyond the plasma generation region into the surrounding ambience, either by a field (e.g. electromagnetic, convective gas flow, or shock wave) or a gradient of a directionless physical quantity (e.g. particle density, pressure, or temperature). This physical extension of a plasma

M G Kong; B N Ganguly; R F Hicks

2012-01-01

329

PLASMA GENERATOR  

DOEpatents

This patent describes apparatus for producing an electricity neutral ionized gas discharge, termed a plasma, substantially free from contamination with neutral gas particles. The plasma generator of the present invention comprises a plasma chamber wherein gas introduced into the chamber is ionized by a radiofrequency source. A magnetic field is used to focus the plasma in line with an exit. This magnetic field cooperates with a differential pressure created across the exit to draw a uniform and uncontaminated plasma from the plasma chamber.

Foster, J.S. Jr.

1958-03-11

330

Development and Implementation of a Lab Course for Introductory Astronomy  

NASA Astrophysics Data System (ADS)

The typical "Astro 101" lecture-based course is passive, and adding well- designed learner-centered labs allows students to experience science as a pattern of thought. In this article, we present an approach to developing an introductory lab course. Identification of goals and student outcomes, particularly skills, and process and attitudinal goals, is a key step. We apply constructivist principles to the lab course and structure content around core concepts to provide cohesion and facilitate knowledge transfer. We discuss the role of the teaching assistant and assessment in a successful implementation of our approach.

McCrady, Nate; Rice, Emily

331

Servo Motor Diagramming and Wiring Lab (Instructor Guide)  

NSDL National Science Digital Library

This lab activity was completed as part of an NSF-funded externship program administered by the High Tech Workforce Initiative at Maricopa Community Colleges. Students will apply their knowledge of electrical power, servo control systems and servo motor properties to real-world scenarios. This lab is part of a servo systems course in an Industrial Operations Technology AAS program, using Amatrol curriculum and equipment. It can be done in conjunction with, or as an adaptation or replacement of, Lab Experiments 4-2 and 4-3 in the Amatrol Electro Servo Learning System materials.

Perry, Clyde

2012-12-25

332

Axial Transport with free plasma-neutral end-boundary in Enormous Toroidal Plasma Device (ETPD): ``The End of the Plasma''  

NASA Astrophysics Data System (ADS)

Axial transport of particles, momentum, and heat in a magnetized, quiescent (?n/n <5%), current-free plasma with a free end-boundary terminating on a neutral gas are studied. The experiment is done on the ETPD at UCLA, a large toroidal device (major radius = 5 m, 2 m wide, 3 m tall) with a pulsed (1 Hz) DC plasma discharge (td < 100 ms) with a toroidal (Bt < 320 G) and a vertical (Bv < 8 G) magnetic field. An 18 cm x 18 cm LaB6 plasma source creates a helical plasma with length L < 120 m, ne < 3x10^13 cm-3, Te < 20 eV, and Ti < Te. The LaB6 source injects heat and momentum in a beam of primary electrons (energy < 400 eV) that ionize a neutral gas and thermalize in the plasma. The plasma length is set by the primary electron energy and flux, neutral fill pressure, and Bt with the plasma able to be fully ``detached'' axially from any wall. Radial plasma profiles and losses are measured, compared to models, and balanced against the input power to predict the plasma length. Also, the properties of the axial plasma-neutral boundary as a sink for particles by 3-body recombination, heat loss by thermalization with neutrals, and momentum loss by ion-neutral collisions are investigated. Work funded by the Department of Energy and National Science Foundation.

Cooper, Chris; Gekelman, Walter; Pribyl, Patrick

2010-11-01

333

CIM Lab to Support Manufacturing Design Implementation  

NSDL National Science Digital Library

Integration of information technology in manufacturing industry in recent years has dramatically affected the delivery of instruction in manufacturing engineering programs. Inclusion of the state of art techniques and technology in a manufacturing education, particularly in the engineering field, is a key factor in the advancement of this discipline. CIM laboratory strongly supports manufacturing engineering curriculum to fulfill some of the ABET requirements for criteria: an ability to design and conduct experiments, as well as to analyze and interpret data, an ability to design a system, component, or process to meet desired needs, an ability to use the techniques, skills, and modern engineering tools necessary for engineering practice. Some key components of CIM and hierarchy of operation in a manufacturing facility are studied and correlated. They include CAD-CAM link, numerical control, automation, production and manufacturing control, control through proper communication and computer supervisory control, robotics control, process planning. A short summary of planning, implementation, and managing of a CIM environment will also be covered. The students will conduct experiments on creating a CIM environment using computer supervisory control. By conducting a hands-on CIM lab project, students have access to the relatively new technologies associated with computer integrated manufacturing, which enable them to participate in tomorrow's rapidly changing technologies and become creative problem-solvers and designers. In this project, students design a product that starts with raw materials and continue with fabricating parts, inspecting, assembling, and storing. This paper emphasizes on the technical contents as well as educational values of the projects.

Ansari, Jahangir; Javaheri, Amir; Ghariban, Nasser

2009-07-15

334

Sandia National Lab's precision laser tracking systems  

NASA Astrophysics Data System (ADS)

Sandia Labs' mobile tracking systems have only one moving part. The double gimballed 18 inch diameter beryllium mirror is capable of constant tracking velocities up to 5 rads/sec in both axes, and accelerations to 150 rads/sec(exp 2) in both axes. Orthogonality is less than 10 microradians. The mirror directs the 488 and 514 nm wavelength CW laser beams to adhesive-backed reflective material applied to the test unit. The mirror catches the return beam and visual image, directing the visual image to three camera bays, and the return beam to an image dissector behind an 80 inch gathering telescope. The image dissector or image position sensor is a photomultiplier with amplifying drift tube and electron aperture and its associated electronics. During the test, the image dissector scan senses the change in position of the reflective material and produces signals to operate the azimuth and elevation torque motors in the gimbal assembly. With the help of 1 1/8 in. diameter azimuth and elevation galvonometer steering mirrors in the optical path, the laser beam is kept on the target at extremely high velocities. To maintain a constant return signal strength, the outgoing beam is run through a microprocessor controlled beam focusing telescope.

Patrick, D.

335

In-lab three-dimensional printing  

PubMed Central

The development of the microscope in 1590 by Zacharias Janssenby and Hans Lippershey gave the world a new way of visualizing details of morphogenesis and development. More recent improvements in this technology including confocal microscopy, scanning electron microscopy (SEM) and optical projection tomography (OPT) have enhanced the quality of the resultant image. These technologies also allow a representation to be made of a developing tissue’s three-dimensional (3-D) form. With all these techniques however, the image is delivered on a flat two-dimensional (2-D) screen. 3-D printing represents an exciting potential to reproduce the image not simply on a flat screen, but in a physical, palpable three-dimensional structure. Here we explore the scope that this holds for exploring and interacting with the structure of a developing organ in an entirely novel way. As well as being useful for visualization, 3-D printers are capable of rapidly and cost-effectively producing custom-made structures for use within the laboratory. We here describe the advantages of producing hardware for a tissue culture system using an inexpensive in-lab printer.

Partridge, Roland; Conlisk, Noel; Davies, Jamie A.

2012-01-01

336

Transducer research at Bell Labs until 1975  

NASA Astrophysics Data System (ADS)

Transducer work in the Acoustics Research Department of Bell Labs from about 1960 to 1975 was focussed on electret-based devices. The first such systems were electret headphones which demonstrated the usefulness of this principle in the sense that no dc-bias was required and that the systems were very sensitive, of high quality, and of simple design. This was followed by the invention of the foil-electret microphone in 1962. Initially, these transducers had polyester electrets which, after a thermal charging procedure, kept their charge only for periods of the order of several months. A search for more stable electrets resulted in 1964 in the discovery of fluoroethylenepropylene as a superior material with time constants of the charge decay of hundreds of years under normal environmental conditions. This electret material is still in use in today's transducers. Subsequent activities were directed toward a better understanding of the solid-state properties of these materials. This included, among others, studies of thermally stimulated processes, irradiation effects, and new charging techniques. Later work on transducers centered on the design and characterization of directional microphones, microphone arrays, ultrasonic transducers, touch pads, and other devices useful in telecommunications.

Sessler, Gerhard M.

2001-05-01

337

Distributed Energy Communications & Controls, Lab Activities - Synopsis  

SciTech Connect

Electric power distribution systems are experiencing outages due to a phenomenon known as fault induced delayed voltage recovery (FIDVR) due to air conditioning (A/C) compressor motor stall. Local voltage collapse from FIDVR is occurring in part because modern air-conditioner and heat pump compressor motors are much more susceptible to stalling during a voltage sag or dip than older motors. These motors can stall in less than three cycles (0.05 s) when a fault, for example, on the sub-transmission system, causes voltage on the distribution system to sag to 70% or less of nominal. We completed a new test system for A/C compressor motor stall testing at the DECC Lab. The A/C Stall test system is being used to characterize when and how compressor motors stall under low voltage and high compressor pressure conditions. However, instead of using air conditioners, we are using high efficiency heat pumps. We have gathered A/C stall characterization data for both sustained and momentary voltage sags of the test heat pump. At low enough voltage, the heat pump stalls (compressor motor stops and draws 5-6 times normal current in trying to restart) due to low inertia and low torque of the motor. For the momentary sag, we are using a fast acting contactor/switch to quickly switch from nominal to the sagged voltage in cycles.

Rizy, D Tom [ORNL

2010-01-01

338

The effect of lab sequence in science instruction: The consequences of shifting labs to the beginning of learning units  

NASA Astrophysics Data System (ADS)

This study examined the relationship between activity sequence and student outcomes in science instruction. Traditionally sequenced teacher learning units with lab activities late in activity sequence were compared to learning units with labs first in their activity sequence. A mixed-methods, quasi-experimental approach was used to test the effectiveness of a lab-first lesson approach suggested by the literature. Quantitative methods were used to assess content achievement; and qualitative methods were used to assess perception. No statistically significant difference was found between the approaches, although the researcher interpreted the results as suggesting some learning advantage for a lab-first approach. Although the teacher thought lab-first appeared to enhance learning, and students seemed to notice no difference during instruction, students preferred and thought they learned best with a lab-last approach. The teacher's view of the lab-first approach was positive; and he is inclined to continue to use it in his practice following the study.

Russell, Thomas R.

339

Plasma Medicine  

NASA Astrophysics Data System (ADS)

Foreword R. Satava and R. J. Barker; Part I. Introduction to Non-equilibrium Plasma, Cell Biology, and Contamination: 1. Introduction M. Laroussi; 2. Fundamentals of non-equilibrium plasmas M. Kushner and M. Kong; 3. Non-equilibrium plasma sources M. Laroussi and M. Kong; 4. Basic cell biology L. Greene and G. Shama; 5. Contamination G. Shama and B. Ahlfeld; Part II. Plasma Biology and Plasma Medicine: 6. Common healthcare challenges G. Isbary and W. Stolz; 7. Plasma decontamination of surfaces M. Kong and M. Laroussi; 8. Plasma decontamination of gases and liquids A. Fridman; 9. Plasma-cell interaction: prokaryotes M. Laroussi and M. Kong; 10. Plasma-cell interaction: eukaryotes G. Isbary, G. Morfill and W. Stolz; 11. Plasma based wound healing G. Isbary, G. Morfill and W. Stolz; 12. Plasma ablation, surgery, and dental applications K. Stalder, J. Woloszko, S. Kalghatgi, G. McCombs, M. Darby and M. Laroussi; Index.

Laroussi, M.; Kong, M. G.; Morfill, G.; Stolz, W.

2012-05-01

340

Characteristics of a LaB6 hollow cathode in the glow-arc transition  

NASA Astrophysics Data System (ADS)

A new type of a simple LaB6 hollow cathode tube allows us to have very stable discharge even in the regime of the glow-arc transition, which is commonly unstable for widely used cathode materials (Ta,W). Because of the relatively large size of our device (25 mm diameter) and the low-temperature operation (~1400 K), we were able to investigate various plasma parameters of the internal plasma in detail by using a standard Langmuir probe and an ion sampling technique with a tiny orifice (1 mm diameter) to study the ion behavior near the cathode wall. Our measurements of the electron-energy distribution function F(?), the space potential ?, the mean electron energy ?¯, the electron density ne, and the sampling ion current density Ji were carried out under various discharge conditions in order to understand the basic characteristics of hollow cathode discharge. We have found that these plasma parameters show anomalous properties in the glow-arc transition: (1) The different discharge regime of hollow cathode discharge, namely the abnormal glow, the arc, and the glow-arc transition, are clearly distinguished, and the discharge voltage Vd and Ji are a unique function of the discharge current in our hollow cathode tube. (2) A distinct high-energy component appears in the range ~1-7 eV, with two types of high-energy tails. (3) The local growth of ?¯, the local ionization, and appearance of the space potential hill are observed near the anode and central region of the tube. These anomalous disturbances correspond to nonuniform self-heating: the nonuniform thermionic electron-emission effect along the LaB6 hollow cathode tube in the glow-arc transition.

Tonegawa, Akira; Takayama, Kazuo

1990-10-01

341

Cancer Blood Tests: Lab Tests Used in Cancer Diagnosis  

MedlinePLUS

... reprinted for personal, noncommercial use only. Cancer blood tests: Lab tests used in cancer diagnosis By Mayo Clinic staff ... mean Secondhand smoke: Avoid dangers in the air Tests and diagnosis (8) Cancer survival rate: What it ...

342

4. INTERIOR VIEW OF CHEMISTRY LAB LOOKING SOUTHEAST; NOTE FUME ...  

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

4. INTERIOR VIEW OF CHEMISTRY LAB LOOKING SOUTHEAST; NOTE FUME EXHAUST HOOD AT LEFT & ORIGINAL CEILING FIXTURE - Fort McCoy, Building No. T-1033, North side of South Tenth Avenue, Block 10, Sparta, Monroe County, WI

343

VIEW, LOOKING NORTHEAST, OF CHEMISTRY LAB, LOCATED ON MEZZANINE ABOVE ...  

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

VIEW, LOOKING NORTHEAST, OF CHEMISTRY LAB, LOCATED ON MEZZANINE ABOVE AND EAST OF FLOTATION CELLS. MAIN USE WAS SAMPLE ANALYSIS TO DETERMINE OPTIMUM REAGENT MIXES AND QUANTITIES. - Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, CO

344

Citizen Science at the Cornell Lab of Ornithology  

NSDL National Science Digital Library

The Cornell Lab of Ornithology is an international center for the study, appreciation, and conservation of birds located on a 200-acre wildlife sanctuary in Ithaca, New York. Founded in 1915 by Arthur A. Allen, the world's first professor of ornithology, the Lab originally became known for its pioneering work in bird photography and has been involved in public education ever since. In fact, Dr. Allen's desire to embrace the public by involving bird watchers in field research launched the Lab on an important path that it continues to this day--that of breaking down barriers between "science" and "public" by actively engaging citizens in the process of scientific inquiry. This chapter will focus on the development and impact of three Citizen Science Lab projects: Project Feeder Watch, the Great Backyard Bird Count, and eBird.

Bonney, Rick

2008-01-01

345

Pre-Lab Questions: Acceleration Due to Gravity  

NSDL National Science Digital Library

A series of simulation based interactive questions that were used as pre-lab questions at Kennesaw State University. The simulations in this case are based on Davidson's college Physlets. These particular questions focus on free fall.

Mzoughi, Taha

2008-09-21

346

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. ENTRANCE TO STAIRWAY TO TUNNEL UNDER MAIN FLOOR OF MAGNET ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

347

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. STAIRWAY FROM MAIN FLOOR OF 51A TO SECOND FLOOR EXTERIOR EXIT, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

348

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. SWITCHGEAR, MECHANICAL SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

349

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-015). March 2005. INTERIOR WALL OF MAGNET INSIDE CENTER OF BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

350

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-110). March 2005. SOUTH FAN FROM MEZZANINE, FAN ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

351

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-006). March 2005. JACKBOLTS BETWEEN MAGNET AND MAGNET FOUNDATION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

352

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-054). March 2005. LOCAL INJECTOR ENTERING SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

353

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-087). March 2005. GENERATOR PIT AREA, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

354

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-026). March 2005. MOUSE AT EAST TANGENT, LOOKING TOWARD EAST TANGENT, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

355

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-043). March 2005. MOUSE AT EAST TANGENT, PLUNGING MECHANISM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

356

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-143). March 2005. BUILDING 51A, EXTERIOR WALL, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

357

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-052). March 2005. LOCAL INJECTOR, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

358

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-004). March 2005. ENTRY TO IGLOO, ILLUSTRATING THICKNESS OF IGLOO WALL, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

359

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. BEVATRON IN CENTER OF MAGNET ROOM - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

360

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. REMNANTS OF HYDRAULIC FIXTURES, FAN ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

361

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-077). March 2005. STUB OF SUPERHILAC BEAM, ENTERING SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

362

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. SWITCHGEAR AND POWER GENERATOR MOTORS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

363

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-108). March 2005. FAN ROOM WITH STAIR TO FILTER BANKS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

364

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. CABLE RACEWAYS, CATWALK, AND WINDOWS OF OFFICE-AND-SHOPS SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

365

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. SIDE OF MAGNET OF BEAMLINE EXITING SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

366

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-107). March 2005. NORTH FAN, FAN ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

367

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. WALL AND WINDOW OVERLOOKING MAGNET ROOM, SECOND STORY OFFICE-AND-SHOPS SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

368

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. END OF BEAMLINE LEAVING SHIELDING, MAGNET COILS IN EPOXY, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

369

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. MAGNET OF BEAMLINE, EXITING SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

370

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. SWITCHGEAR AND POWER GENERATOR MOTORS, MECHANICAL SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

371

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. CENTRAL SUPPORT COLUMN EXTENDING THROUGH CRANES AND ROOF SUPPORT TRUSS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

372

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. ROOF BLOCKS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

373

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. FLOOR AND CEILING OF MAGNET ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

374

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-050). March 2005. DIFFUSION PUMPS UNDER WEST TANGENT, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

375

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-082). June 2005. CEILING AND CRANE OF BUILDING 51A, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

376

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-027). March 2005. MOUSE AT EAST TANGENT, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

377

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection XBD200503-00117-089). March 2005. GENERATOR PIT AREA, CONCRETE FOUNDATION FOR EQUIPMENT MOUNTS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

378

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. PUMP MOUNTS, FAN ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

379

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-005). March 2005. PASSAGEWAY UNDER SOUTHEAST QUADRANT, AIR DUCT OPENINGS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

380

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-012). March 2005. PASSAGEWAY UNDER QUADRANT AND DIFFUSION PUMPS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

381

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-047). March 2005. AREA OF MAGNET REMOVAL, NORTHEAST QUADRANT, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

382

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. STAIRWAY FROM MAIN FLOOR TO SECOND FLOOR OF MECHANICAL WINE, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

383

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-106). March 2005. SOUTH FAN, FAN ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

384

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. STUB OF BEAMLINE EXITING SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

385

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. GENERATOR ROOM, MECHANICAL SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

386

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. GENERATOR MOTORS OPPOSITE SWITCHGEAR RACKS, MECHANIC SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

387

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-066). March 2005. LOCAL INJECTOR, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

388

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-158). March 2005. CONNECTION OF MAGNET ROOM CRANE TO OUTER TRACK, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

389

Looking North into Lab Metallurgy Testing Area and Enrichment Motor ...  

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

Looking North into Lab Metallurgy Testing Area and Enrichment Motor within Recycle Recovery Building - Hematite Fuel Fabrication Facility, Recycle Recovery Building, 3300 State Road P, Festus, Jefferson County, MO

390

Ladle metallurgy I: scaleup of a lab design  

NSDL National Science Digital Library

Development and use of a modified Hagen-Poiseuille equation to calculate laminar fully-developed draining rate in a "lab-scale" ladle; then changing to the Bernoulli equation for the full-scale ladle.

Powell, Adam C., IV

2003-12-24

391

Jefferson Lab Mass Storage and File Replication Services.  

National Technical Information Service (NTIS)

Jefferson Lab has implemented a scalable, distributed, high performance mass storage system - JASMine. The system is entirely implemented in Java, provides access to robotic tape storage and includes disk cache and stage manager components. The disk manag...

I. Bird Y. Chen B. Hess A. Kowalski C. Watson

2001-01-01

392

Berkeley Lab: A Place of Wonder, Spring 2006  

ScienceCinema

Video produced in early 2006. Lawrence Berkeley National Lab has been a leader in science and engineering research for more than 75 years. The Lab conducts a wide range of scientific research with key efforts in fundamental studies of the universe, quantitative biology, nanoscience, new energy systems and environmental solutions, and the use of computing as a tool for discovery. Located on a 200 acre site in the hills above the University of California's Berkeley campus, adjacent to the San Francisco Bay, Berkeley Lab holds the distinction of being the oldest of the U.S. Department of Energy's National Laboratories. Eleven Nobel laureates are associated with Berkeley Lab. It is managed by the University of California.

393

Making Introductory Biology Labs Cooler: Data Acquisition and Analysis  

NSDL National Science Digital Library

This project explores the increasing mathematics application in Introductory Biology courses and collaborating with colleagues in the Math and Science departments by sharing data sets generated in the Biology labs

Kiser (;)

2008-06-28

394

Modeling Chemical and Isotopic Variations in Lab Formed Hydrothermal Carbonates  

Microsoft Academic Search

Most martian secondary minerals have likely not experienced significant diagenesis. Thus lab formed carbonates provide an empirical view of kinetic processes important during carbonate precipitation and of the scales at which those processes operate.

P. B. Niles; L. A. Leshin; D. C. Golden; R. A. Socki; Y. Guan; D. W. Ming

2005-01-01

395

A LabVIEW-based Accelerator Instrumentation Platform  

Microsoft Academic Search

An overview is given of the developed LabVIEW-based ac- celerator instrumentation platform and its applications. LabVIEW provides the software basis with its extensive anal- ysis library and drivers to a variety of data acquisition hard- ware. An in-house developed interface integrates the platform into the Fermilab Accelerator Controls Network. Procedures have been designed to assist in the development process. The

W. Blokland

396

OPTO-22 DRIVER. OPTO-22 Driver for LabView  

SciTech Connect

OPTO-22 DRIVER consists of a set of LabVIEW (National Instruments, Austin, TX) virtual instruments (VIs) that handle low-level communications with signal conditioning equipment by Opto-22 (Huntington Beach, CA). The OPTOMUX protocol is support, which requires the use of a serial port and supports multidrop communications. With this package, users can connect hundreds of Opto-22 modules to their LabVIEW system and access all features of the hardware, including analog and digital input and outputs.

Johnson, G.W. [Lawrence Livermore National Lab., CA (United States)

1991-01-28

397

University of Texas: Allen J. Bard Lab of Electrochemistry  

NSDL National Science Digital Library

Allen J. Bard's Lab of Electrochemistry at the University of Texas is interested in "the application of electrochemical methods to the study of chemical problems." The website offers lengthy lists of Bard's journal articles, patents, books, and other publications. Users can discover the lab's current research projects dealing with ultra-high-resolution electrochemistry; photoelectrochemistry at semiconductors; and electrochemical studies of biological systems, organic species, and inorganic species. Students and educators can find a link to an interactive Periodic Table of Elements.

398

Activities at iThemba LABS Cyclotron Facilities  

NASA Astrophysics Data System (ADS)

iThemba Laboratory for Acceleratory Based Sciences (iThemba LABS) is a multi-disciplinary cyclotron facility. Chief among its activities is the operation of a k=200 sepparate sector cyclotron (SSC) which provides proton beams of energies up to 200 MeV. These beams are used for fundamental nuclear physics research in the intermediate energy region, isotope production and medical physics applications. Details on developments regarding the new flagship project at iThemba LABS are also presented.

Bark, R. M.; Cornell, J.; Lawrie, J. J.; Vilakazi, Z. Z.

399

Distributed Resource Discovery on PlanetLab with SWORD  

Microsoft Academic Search

Abstract: This paperfocuses on SWORD's PlanetLab deployment and thelessons we have learned from it. The key features ofSWORD's operation on PlanetLab are its scalable, distributedquery processor for satisfying the multi-attributerange queries that describe application resource requirements,and its ability to support queries over not just pernode characteristics such as load, but also over inter-nodeFigure 1: High-level architecture of SWORDcharacteristics such as

David Oppenheimer; Jeannie Albrecht; David Patterson; Amin Vahdat

2004-01-01

400

LabNet: Toward a community of practice  

NASA Astrophysics Data System (ADS)

It is common currency that science education in America isn't working well enough. We are failing to excite the curiosity of young minds in the great questions of the physical universe. LabNet—a prototype teacher-support project developed by TERC, and funded by the National Science Foundation, is dedicated to addressing this issue. The first three year phase of LabNet began in January 1989 and ended in mid-1992. During that time, some 562 high school teachers of physics in 37 states were involved. Three interconnected threads are woven through the fabric of LabNet. The first, and most vivid, is the use of projects to enhance students' science learning. LabNet's second thread is building a community of practice among LabNet teachers. The third thread woven into LabNet is promoting the use of new technologies in science teaching and learning. The most notable use of new technology in the LabNet project is telecommunications—computer-to-computer communication via telephone lines. A dedicated network has been created and made available to all participants. As the first national network designed for high school teachers of physical science, the LabNetwork is a dynamic medium for building and sustaining a community of practice for physics teachers separated by many thousands of miles. In recommendations directed at teachers, scientists, and particularly the National Science Foundation, steps are outlined that can be taken to strengthen the community and the teaching of science in both the secondary and elementary grades.

Ruopp, Richard

1993-03-01

401

LabTalk/2: a middleware approach to HIS integration.  

PubMed Central

LabTalk/2 is an intelligent interface between a legacy order-entry system and a legacy laboratory information system. Unlike other interfaces, LabTalk/2 does more than just transform data from one format to another; it transforms the manner in which data is processed. Utilizing the "middleware" concept, it sits independently between the two systems, decoupling their maintenance needs. Implementation has been successful.

Zakaria, A. M.; Giuse, D. A.

1995-01-01

402

LabTalk/2: a middleware approach to HIS integration.  

PubMed

LabTalk/2 is an intelligent interface between a legacy order-entry system and a legacy laboratory information system. Unlike other interfaces, LabTalk/2 does more than just transform data from one format to another; it transforms the manner in which data is processed. Utilizing the "middleware" concept, it sits independently between the two systems, decoupling their maintenance needs. Implementation has been successful. PMID:8563250

Zakaria, A M; Giuse, D A

1995-01-01

403

The analysis of image acquisition in LabVIEW  

NASA Astrophysics Data System (ADS)

In this paper, four methods of image acquisition in LabVIEW were described, and its realization principles and the procedures in combination with different hardware architectures were illustrated in the virtual instrument laboratory. Experiment results show that the methods of image acquisition in LabVIEW have many advantages such as easier configuration, lower complexity and stronger practicability than in VB and C++. Thus the methods are fitter to set the foundation for image processing, machine vision, pattern recognition research.

Xu, Wuni; Zhong, Lanxiang

2011-04-01

404

IDEAS: A MINIATURE LAB-IN-A-PILL MULTISENSOR MICROSYSTEM  

Microsoft Academic Search

A novel wireless multisensor microsystem comprising temperature, conductivity, pH and dissolved oxygen sensors, a control chip and a 38.342 MHz transmitter is described including designs and experimental results. This study (Lab-in-a-Pill) brings together Lab-on-a-chip (LOC) technology and System-on-Chip (SoC) methodology. The first mi- crosystem prototype consumes 6.3 mW of power in a miniature capsule which measures 16 mm 55 mm.

Tong Boon Tang; Erik A. Johannessen; Lei Wang; Alexander Astaras; Mansour Ahmadian; Li Cui; Alan F. Murray; Jonathan M. Cooper; Steve P. Beaumont; Brian W. Flynn; David R. S. Cumming

405

Lab Exercises: Digital Signal Processing with Field Programmable Gate Arrays  

NSDL National Science Digital Library

This website features a collection of eight laboratory experiments in the use of Field Programmable Gate Arrays (FPGAs), user-configurable semiconductor devices, for digital signal processing (DSP). The labs cover both leading FPGA vendors (Xilinx and Altera), provide a MatLab/Simulink-based design flow and are intended for use in university-level classes in electrical and computer engineering. Site materials include downloadable files in two versions compatible with each vendor's devices, and student worksheets.

Meyer-Baese, Uwe

406

Plasma electronics  

Microsoft Academic Search

The paper reviews the main directions and achievements in plasma electronics research in the U.S.S.R. This research encompasses fundamental plasma investigations, the wave and oscillatory properties of plasmas, various instabilities, and turbulence in plasmas, with the purpose of achieving significant increases in the limiting currents, powers, and energies of beams as compared with the limits of vacuum technology. Aspects of

Ia. B. Fainberg

1978-01-01

407

Proton Form Factor Measurements at Jefferson Lab  

SciTech Connect

In two experiments at Jefferson Lab in Hall A, the first one in 1998 and the second in 2000, the ratio of the electromagnetic form factors of the proton was obtained by measuring P{sub t} and P{sub ell}, the transverse and longitudinal recoil proton polarization components, respectively, in {rvec e}p {yields} e{rvec p}; the ratio G{sub E{sub p}}/G{sub M{sub p}} is proportional to P{sub t}/P{sub {ell}}. Simultaneous measurement of P{sub t} and P{sub {ell}} provides good control of the systematic uncertainty. The first measurement of G{sub E{sub p}}/G{sub M{sub p}} ratio was made to Q{sup 2} = 3.5 GeV{sup 2} and the second measurement to Q{sup 2} = 5.6 GeV{sup 2}. The results from these two experiments indicate that the ratio scales like 1/Q{sup 2}, in stark contrast with cross section data analyzed by the Rosenbluth separation method which gives a constant value for this ratio. The incompatibility of the recoil polarization results with most of the Rosenbluth separation results appears now well established above Q{sup 2} of about 3 GeV{sup 2}. The consensus at the present time is that the interference of the two-photon exchange with the Born term, which had been deemed negligible until recently, might explain the discrepancy between the results of the two techniques; the possibility that the discrepancy is due to incomplete radiative correction has also been recently discussed.

Charles Perdrisat; Vina Punjabi

2004-09-27

408

Using collaborative technologies in remote lab delivery systems for topics in automation  

Microsoft Academic Search

Lab exercises are a pedagogically essential component of engineering and technology education. Distance education remote labs are being developed which enable students to access lab facilities via the Internet. Collaboration, students working in teams, enhances learning activity through the development of communication skills, sharing observations and problem solving. Web meeting communication tools are currently used in remote labs. The problem

Joe E. Ashby

2009-01-01

409

Using VPN technology to remove physical barriers in linux lab experiments  

Microsoft Academic Search

The ability for students to perform computer laboratory experiments has traditionally been limited to a physical environment. Because of this restriction, lab experiments could be performed only during formal lab hours or open lab time. There are a number of negative consequences resulting from physical barriers, including administrative issues involving lab equipment and room support costs, and site access on

Lee W. Toderick; Philip J. Lunsford II

2007-01-01

410

Design of Inquiry-Oriented Science Labs: Impacts on Students' Attitudes  

ERIC Educational Resources Information Center

|Background: Changes in lab style can lead to differences in learning. Two inquiry-oriented lab styles are guided inquiry (GI) and problem-based (PB). Students' attitudes towards lab are important to consider when choosing between GI and PB styles during curriculum design. Purpose: We examined the degree to which lab experiences are explained by…

Baseya, J. M.; Francis, C. D.

2011-01-01

411

Design of Inquiry-Oriented Science Labs: Impacts on Students' Attitudes  

ERIC Educational Resources Information Center

Background: Changes in lab style can lead to differences in learning. Two inquiry-oriented lab styles are guided inquiry (GI) and problem-based (PB). Students' attitudes towards lab are important to consider when choosing between GI and PB styles during curriculum design. Purpose: We examined the degree to which lab experiences are explained by a…

Baseya, J. M.; Francis, C. D.

2011-01-01

412

Computer lab reservations: improving how to manage multiple reservation life cycles  

Microsoft Academic Search

Since 2003, computer lab reservations during the summer semester have been growing more quickly than resources for managing computer lab reservations at the University of California, Berkeley. In the past one could easily manage the varying life cycles of lab reservations between May and August using notes and a paper calendar: the request, the lab's response to technical needs such

Nicole M. Sattler

2006-01-01

413

Stable processing with unstable plasmas?  

NASA Astrophysics Data System (ADS)

Plasmas are employed for materials processing over a very wide range of conditions. For typical etch applications, these include plasmas generated in various ways with RF at various frequencies and power levels ranging from 100W up to 10000W. Mixed gas chemistries are used, at pressures ranging from mTorr to Torr, with multiple, often electron-attaching species present in significant proportions. These complex conditions are typically produced in production reactors that are hardly optimal for diagnostic access, so this is not a recipe for a quiescent lab plasma that may be conveniently studied. Inevitably a range of plasma instabilities and other unstable conditions may be encountered, often without immediate detection, as one spans the operating space. These unstable conditions may range from internal well known linear and quasi-linear plasma instabilities1, 2 to gross non-linear relaxation oscillations3, 4, 5, parametric drifts and even plasma extinguishment. Many of these phenomena involve strong interactions with the materials being processed and the external hardware that supports the reactor module operation. We will discuss certain questions: how may one observe such conditions (if you can't see it, does it matter from the processing perspective?); is it advisable to continue processing regardless; what might the consequences be, good or bad, and how they may be controlled6? 1) T. H. Stix, Waves in Plasmas, American Institute of Physics, New York (1992), and The Theory of Plasma Waves, McGraw-Hill (1962). 2) N. Krall and A. Trivelpiece, Principles of Plasma Physics, McGraw-Hill (1973). 3) M. Tuszewski, J. App. Phys., 79 8967 (1996) 4) M. A. Lieberman et. al., Appl. Phys. Lett. 75, 3617 (1999) 5) A. M. Marakhtanov et..al., J. Vac. Sci. Tech. A, 21 1864 (2003) and references therein. 6) D.L.Goodman and N. M. P. Benjamin, J. Phys. D, 36 2845 (2003).

Benjamin, Neil

2004-09-01

414

Seeing an Old Lab in a New Light: Transforming a Traditional Optics Lab into Full Guided Inquiry  

NASA Astrophysics Data System (ADS)

This paper describes the authors' experiences transforming a ``cookbook'' lab into an inquiry-based investigation and the powerful effect the inquiry-oriented lab had on our students' understanding of lenses. We found the inquiry-oriented approach led to richer interactions between students as well as a deeper conceptual understanding of how images are formed. We observed engaged students participating in scientific discourse full of hypothesizing, modeling, and argumentation based on evidence.

Maley, Tim; Stoll, Will; Demir, Kadir

2013-09-01

415

The Influence of Tablet PCs on Studentsâ Use of Multiple Representations in Lab Reports  

NSDL National Science Digital Library

This study examined how different tools influenced studentsâ use of representations in the Physics laboratory. In one section of a lab course, every student had a Tablet PC that served as a digital-ink based lab notebook. Students could seamlessly create hand-drawn graphics and equations, and write lab reports on the same computer used for data acquisition, simulation, and analysis. In another lab section, students used traditional printed lab guides, kept paper notebooks, and then wrote lab reports on regular laptops. Analysis of the lab reports showed differences between the sectionsâ use of multiple representations, including an increased use of diagrams and equations by the Tablet users.

Guelman, Clarisa B.; De Leone, Charles; Price, Edward

2010-01-19

416

Design of inquiry-oriented science labs: impacts on students' attitudes  

Microsoft Academic Search

Background: Changes in lab style can lead to differences in learning. Two inquiry-oriented lab styles are guided inquiry (GI) and problem-based (PB). Students’ attitudes towards lab are important to consider when choosing between GI and PB styles during curriculum design.Purpose: We examined the degree to which lab experiences are explained by a GI or a PB lab style vs. students’

J. M. Baseya; C. D. Francis

2011-01-01

417

Space-plasma campaign on UCLA's Large Plasma Device (LAPD)  

NASA Astrophysics Data System (ADS)

Knudsen [JGR, 1996] describes a potential role for stationary Alfvén (StA) waves in auroral arcs' frequency dependence. Magnetized plasmas are predicted to support electromagnetic perturbations that are static in a fixed frame if there is uniform background plasma convection. These stationary waves should not be confused with standing waves that oscillate in time with a fixed, spatially varying envelope. Stationary waves have no time variation in the fixed frame. In the drifting frame, there is an apparent time dependence as plasma convects past fixed electromagnetic structures. We describe early results from an experimental campaign to reproduce in the lab the basic conditions necessary for the creation of StA waves, namely quasi-steady-state convection across magnetic field-aligned current channels. We show that an off-axis, fixed channel of electron current (and depleted density) is created in the Large Plasma Device Upgrade (LAPD) at UCLA, using a small, heated, oxide-coated electrode at one plasma-column end and we show that the larger plasma column rotates about its cylindrical axis from a radial electric field imposed by a special termination electrode on the same end. Initial experimentation with plasma-rotation-inducing termination electrodes began in May 2006 in the West Virginia Q Machine, leading to two designs that, in January 2007, were tested in LAPD. The radial profile of azimuthal velocity was consistent with predictions of rigid-body rotation. Current-channel experiments in LAPD, in August 2006, showed that inertial Alfvén waves could be concentrated in an off-axis channel of electron current and depleted plasma density. These experimental results will be presented and discussed. This research is supported by DOE and NSF.

Koepke, M. E.; Finnegan, S. M.; Knudsen, D. J.; Vincena, S.

2007-05-01

418

Status report on Jefferson Lab`s high-power infrared free-electron laser  

SciTech Connect

Jefferson Lab is building a free-electron laser to produce tunable, continuous-wave (cw), kW-level light at 3-6 {mu}m wavelength. A superconducting accelerator will drive the laser, and a transport lattice will recirculate the beam back through the accelerator for energy recovery. Space charge in the injector and coherent synchrotron radiation in magnetic bends will be present, and the machine is instrumented to study these phenomena during commissioning. The wiggler and optical cavity are conventional; however, significant analysis and testing was needed to ensure mirror heating at 1 kW of outcoupled power would not impede performance. The FEL is being installed in its own facility, and installation will be finished in Fall 1997. This paper surveys the machine, the status of its construction, and plans for its commissioning.

Bohn, C.L. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

1997-10-01

419

Flow Generation in the Plasma Couette Experiment  

NASA Astrophysics Data System (ADS)

One goal of the Plasma Couette Experiment (PCX) is to study the magnetorotational instability (MRI), a fundamental mechanism in astrophysical accretion disks. Local linear stability analysis suggests that densities of 10^12 cm-3 and velocities of 10 km/s are sufficient for onset of MRI. In PCX, plasma is produced either by a LaB6 cathode, or by electron cyclotron resonance heating and is confined by a cylindrical, axisymmetric, highly localized ring cusp magnetic field at the boundary. Preliminary LaB6 plasmas have already achieved Te=10 eV and n=5x10^10 cm-3 with only 400 W discharge power. To create the differential rotation necessary to study MRI, electrode rings between the magnets are biased to induce ExB rotation. Mach probe measurements indicate that the azimuthal plasma flow velocity reaches 2 km/s with 50% modulations, depending on distance from the electrodes. This suggests the presence of diamagnetic flows due to the density gradient in the multicusp field. Controlling the plasma rotation profile with the electrodes depends critically on electrode location and the efficiency of velocity transfer through viscous effects.

Collins, C.; Katz, N.; Weisberg, D.; Clark, M.; Wallace, J.; Forest, C. B.

2010-11-01

420

A new high beta plasma device at UCLA  

NASA Astrophysics Data System (ADS)

We recently made a high beta plasma 30 eV and 100G < B< 250G) on the axis of a toroidal device at UCLA. The highest beta attained, ? 3, was at the lower field. The vacuum chamber is 30 meters in circumference, 2 meters wide and 3 meters tall. Using a weak vertical field, the 20 cm diameter plasma has made 4 rotations for a length of 120 m. Interestingly, at these plasma parameters the neutral penetration depth is shorter than the radius of the plasma, so we expect the plasma is fully ionized. The cathode used is amorphous Lanthanum Hexaboride (LaB6), which has more than 10 times the emission per area of the Barium Oxide cathode now used in the LAPD. Also LaB6 cathodes can be run in a hydrogen plasma and are relatively insensitive to oxygen leaks. We have developed a technique to make reliable large cathodes, the one in use is 400 cm^2. The magnetic field is steady state and the plasma is pulsed at 1 Hz with pulse lengths as long as 120 ms. The plasma is hundreds of parallel Alfv'en wavelengths long with a Lundquist number of 5000. Some experiments possible on this device are: fully three dimensional magnetic field line reconnection, Alfv'enic and MHD turbulence, studies of rotational transforms, physics of Alfv'en waves at high beta in Toroidal geometries, and high beta laser-plasma interactions.

Cooper, Chris; Gekelman, Walter; Pribyl, Patrick; Stattel, Stefanie; Derose, Kimberly; Carter, Troy

2008-11-01

421

Plasma Flow Measurement using Mach Probe and Laser-Induced Fluorescence in Weakly Magnetized Plasmas  

NASA Astrophysics Data System (ADS)

A Mach probe (MP) is generally used for the measurement of plasma flow velocity in the edge of magnetic fusion devices, space propulsion systems, processing plasmas, sheath and pre- sheath regions. Although several un-magnetized MP theories are available, their validity has not been fully confirmed, and should be checked by comparative (or simultaneous) measurement with another diagnostic tool such as laser-induced fluorescence (LIF). The plasma flow velocity was measured via an MP and LIF method in Ar plasma generated by LaB6 cathode of Diversified Plasma Simulator - Modification (DiPS-M). The MP and LIF measurements are performed in the ranges of magnetic field intensities, 100 < B < 1000 (Gauss) and the various neutral pressures, 1

Woo, Hyun-Jong; Chung, Kyu-Sun; Park, Eun-Kyung; Lee, Myoung-Jae

2010-11-01

422

Lab-on-a-Chip Pathogen Sensors for Food Safety  

PubMed Central

There have been a number of cases of foodborne illness among humans that are caused by pathogens such as Escherichia coli O157:H7, Salmonella typhimurium, etc. The current practices to detect such pathogenic agents are cell culturing, immunoassays, or polymerase chain reactions (PCRs). These methods are essentially laboratory-based methods that are not at all real-time and thus unavailable for early-monitoring of such pathogens. They are also very difficult to implement in the field. Lab-on-a-chip biosensors, however, have a strong potential to be used in the field since they can be miniaturized and automated; they are also potentially fast and very sensitive. These lab-on-a-chip biosensors can detect pathogens in farms, packaging/processing facilities, delivery/distribution systems, and at the consumer level. There are still several issues to be resolved before applying these lab-on-a-chip sensors to field applications, including the pre-treatment of a sample, proper storage of reagents, full integration into a battery-powered system, and demonstration of very high sensitivity, which are addressed in this review article. Several different types of lab-on-a-chip biosensors, including immunoassay- and PCR-based, have been developed and tested for detecting foodborne pathogens. Their assay performance, including detection limit and assay time, are also summarized. Finally, the use of optical fibers or optical waveguide is discussed as a means to improve the portability and sensitivity of lab-on-a-chip pathogen sensors.

Yoon, Jeong-Yeol; Kim, Bumsang

2012-01-01

423

Transforming the advanced lab: Part I - Learning goals  

NASA Astrophysics Data System (ADS)

Within the physics education research community relatively little attention has been given to laboratory courses, especially at the upper-division undergraduate level. As part of transforming our senior-level Optics and Modern Physics Lab at the University of Colorado Boulder we are developing learning goals, revising curricula, and creating assessments. In this paper, we report on the establishment of our learning goals and a surrounding framework that have emerged from discussions with a wide variety of faculty, from a review of the literature on labs, and from identifying the goals of existing lab courses. Our goals go beyond those of specific physics content and apparatus, allowing instructors to personalize them to their contexts. We report on four broad themes and associated learning goals: Modeling (math-physics-data connection, statistical error analysis, systematic error, modeling of engineered "black boxes"), Design (of experiments, apparatus, programs, troubleshooting), Communication, and Technical Lab Skills (computer-aided data analysis, LabVIEW, test and measurement equipment).

Zwickl, Benjamin; Finkelstein, Noah; Lewandowski, H. J.

2012-02-01

424

Dusty plasmas  

Microsoft Academic Search

Dust grains immersed in plasma become charged. The charge is determined by the plasma characteristics, by secondary and photoemission from the grain, by grain velocity, and at any given instant by the past time history of the charging currents. This charge affects the Coulomb drag on a grain moving through the plasma. It affects the motion of the grain in

T G Northrop

1992-01-01

425

Plasma Physics  

Microsoft Academic Search

Beginning at an introductory level, this text presents a thorough treatment of plasma physics, including an extensive discussion of its applications in thermonuclear fusion research. A novel feature of this book is its comprehensive description of the various concepts and formulas widely used in fusion theory based on the fundamental equations of the plasma fluid. The physics of fusion plasmas

Kyoji Nishikawa; Masashiro Wakatani

1990-01-01

426

First results on GlioLab/GlioSat Precursors Missions  

NASA Astrophysics Data System (ADS)

Since 2009 GAUSS group is involved in a joint collaboration with Morehead State University (MSU) Space Science Center and IRCCS Casa Sollievo della Sofferenza (CSS) research labs with the aim to design a biomedical project in order to investigate if the combined effects of microgravity conditions and ionizing radiation increase or decrease the survival rate of cancer cells. The biological sample consists of Glioblastoma cancer cell line ANGM-CSS. Glioblastoma is a kind of cancer that can be treated after surgery only by radiotherapy using ionizing radiation. This treatment, anyway, results in a very low survival rate. This project uses different university space platforms: a CubeLab, named GlioLab, on board the International Space Station and the university microsatellite UniSat-5 designed by GAUSS. In addition a GlioLab/GlioSat precursor experiment has already flown two times with the Space Shuttle during the missions STS-134 and STS-135. The phase 0 or the precursor of GlioLab uses a COTS system, named Liquid Mixing Apparatus (LMA), to board the biological samples inside the Space Shuttle for thirty day . The LMA allows to board liquids inside a vial but is not equipped with environment control system. After landing the samples were investigated by researchers at CSS in Italy and at MSU in Kentucky. This paper deals with the experimental set up and the results obtained during the STS-134 and STS-135 missions and with the new evidences on the behavior of this kind of cancer. In particular the results obtained on the DNA analysis give a confirmation of the original idea of GLioLab/Gliosat project justifying the development of the two systems.

Cappelletti, Chantal; Notarangelo, Angelo; Demoss, Darrin; Carella, Massimo

2012-07-01

427

Experiments and modelling of combined PVD and CVD processes using a hollow cathode arc discharge plasma  

Microsoft Academic Search

A plasma-based deposition method was developed which allows the formation of non-metallic coatings with a graded metal interlayer to improve the substrate adhesion of the non-metallic coating. For this a plasma-enhanced PVD process was combined with a CVD process using a hollow cathode arc discharge plasma produced from a LaB6 cathode as thermal electron emitter. In the present experiments layers

H Bolt; A Buuron; F Koch; M Noethe

1998-01-01

428

Remembering the early days of the Met Lab  

SciTech Connect

The Met Lab was set up by the war-time Manhattan District, US Corp of Engineers to (i) find a system using normal uranium in which a chain reaction would occur; (ii) to show that if such a chain reaction did occur, it would be possible to separate plutonium chemically from the uranium matrix and the fission products formed in the chain reactions; and (iii) to prepare plans for the large-scale production of plutonium. Chemistry Section C-1 of the Met Lab was assigned the responsibility for developing separation methods for plutonium production on the industrial scale. This report describes some aspects of daily life in Section C-1.

Katz, J.J.

1990-01-01

429

EarthLabs - Investigating Hurricanes: Earth's Meteorological Monsters  

NASA Astrophysics Data System (ADS)

Earth science is one of the most important tools that the global community needs to address the pressing environmental, social, and economic issues of our time. While, at times considered a second-rate science at the high school level, it is currently undergoing a major revolution in the depth of content and pedagogical vitality. As part of this revolution, labs in Earth science courses need to shift their focus from cookbook-like activities with known outcomes to open-ended investigations that challenge students to think, explore and apply their learning. We need to establish a new model for Earth science as a rigorous lab science in policy, perception, and reality. As a concerted response to this need, five states, a coalition of scientists and educators, and an experienced curriculum team are creating a national model for a lab-based high school Earth science course named EarthLabs. This lab course will comply with the National Science Education Standards as well as the states' curriculum frameworks. The content will focus on Earth system science and environmental literacy. The lab experiences will feature a combination of field work, classroom experiments, and computer access to data and visualizations, and demonstrate the rigor and depth of a true lab course. The effort is being funded by NOAA's Environmental Literacy program. One of the prototype units of the course is Investigating Hurricanes. Hurricanes are phenomena which have tremendous impact on humanity and the resources we use. They are also the result of complex interacting Earth systems, making them perfect objects for rigorous investigation of many concepts commonly covered in Earth science courses, such as meteorology, climate, and global wind circulation. Students are able to use the same data sets, analysis tools, and research techniques that scientists employ in their research, yielding truly authentic learning opportunities. This month-long integrated unit uses hurricanes as the story line by which students investigate the different interactions involved in hurricane generation, steering, and intensification. Students analyze a variety of visualization resources looking for patterns in occurrence and to develop an understanding of hurricane structure. They download archived data about past hurricanes and produce temporal and spatial plots to discover patterns in hurricane life cycles. They investigate the relationship between hurricane wind speed and factors such as barometric pressure and sea surface temperature by conducting spreadsheet analyses on archived data. They also conduct hands-on laboratory experiments in order to understand the physical processes that underpin energy transfer in convection, condensation, and latent heat. These activities highlight Earth science as a vital, rich, invigorating course, employing state-of-the-art technologies and in-depth labs with high relevance for our daily lives and the future.

McDaris, J. R.; Dahlman, L.; Barstow, D.

2007-12-01

430

40 Inquiry Exercises for the College Biology Lab  

NSDL National Science Digital Library

Available March 2009. Drawing from the author's own work as a lab developer, coordinator, and instructor, this one-of-a-kind text for college biology teachers uses the inquiry method in presenting 40 different lab exercises that make complicated biology subjects accessible to major and nonmajors alike. The volume offers a review of various aspects of inquiry, including teaching techniques, and covers 16 biology topics, including DNA isolation and analysis, properties of enzymes, and metabolism and oxygen consumption. Student and teacher pages are provided for each of the 16 topics.

Johnson, A. D.

2009-03-01

431

Pulse shaping analysis with LAB-based liquid scintillators  

NASA Astrophysics Data System (ADS)

We report on a pulse shaping analysis for alpha-beta discrimination using a linear alkylbenzene (LAB)-based liquid scintillator developed for reactor neutrino experiments. The scintillation properties are measured with an internal alpha source diluted in the same scintillator and an external gamma source. The comparison of the fast and the slow parts in the signal waveforms provide clear separations of alpha and gamma events in the liquid scintillator. The discrimination power is compared between the LAB-based liquid scintillator and other commercially available liquid scintillators. The potential use of this scintillator when loaded with 6Li is discussed with regard to neutron measurements.

Lee, J. S.; Kim, Y. H.; Lee, K. B.; Lee, M. K.; Ma, K. J.; Jeon, E. J.; Kim, J. Y.; Kim, N. Y.; Kim, Y. D.; Lee, J. Y.

2012-02-01

432

Enabling Applications on the Grid - A GridLab Overview  

NSDL National Science Digital Library

This paper on computational grid technology is scheduled to be published in the International Journal of High Performance Computing Applications in August 2003. The first part of the paper discusses the great potential of grid computing in scientific and business scenarios, as well as the challenges that must be overcome if it is to be more widely adopted. A specific grid architecture, called GridLab, is initially mentioned, but the second part of the paper goes into more detail about the system's design and implementation. The GridLab project is funded by the European Union.

Russell, Michael.; Radke, Thomas.; Seidel, Ed.; Nabrzyski, Jarek.; Pukacki, Juliusz.; Shalf, John.

2003-01-01

433

Giant Electromagnet Move at Brookhaven Lab, June 22, 2013  

ScienceCinema

On Saturday, June 22, 2013, a 50-foot-wide, circular electromagnet began its 3,200-mile land and sea voyage from Brookhaven National Laboratory in New York to a new home at Fermilab in Illinois. There, scientists will use it to study the properties of muons, subatomic particles that live only 2.2 millionths of a second, and the results could open the door to new realms of particle physics. In the first part of the move, Emmert International and a team of Fermilab and Brookhaven Lab scientists and engineers transported the electromagnet across the Brookhaven Lab site to a staging area by its main gate.

434

An Overview of Dark Matter Experiments at Jefferson Lab  

NASA Astrophysics Data System (ADS)

Dark Matter research at Jefferson Lab started in 2006 with the LIght Pseudoscalar and Scalar Search (LIPSS) collaboration to check the validity of results reported by the PVLAS collaboration. In the intervening years interest in dark matter laboratory experiments has grown at Jefferson Lab. Current research underway or in planning stages probe various mass regions covering 14 orders of magnitude: from 10-6 eV to 100 MeV. This presentation will be an overview of our dark matter searches, three of which focus on the hypothesized A' gauge boson.

Boyce, James R.; Collaborations: Lipss; DarkLight; Hps; Apex

2012-09-01

435

Does your lab coat fit to your assay?  

PubMed

An explanation for randomly occurring spikes on microplates in fluorescence-based assays employing shorter-wavelength readouts is presented. It is demonstrated that lint originating from standard (white cotton) lab coats is most likely to be responsible for such artifacts in assays applying wavelengths at 380 nm excitation and 450 nm emission. The fluorescence properties of this lint are discussed and compared with those of optical brighteners. An alternative to the use of cotton-based lab coats is presented, which led to a reduction of spikes in a high-throughput screening campaign by 90%. PMID:23507575

Busch, Michael; Thoma, Heinz Bjoern; Kober, Ingo

2013-03-18

436

RiskLab - a joint Teaching Lab on Hazard and Risk Management  

NASA Astrophysics Data System (ADS)

In the future natural disasters are expected to increase due to climatic changes that strongly affect environmental, social and economical systems. For this reason and because of the limited resources, governments require analytical risk analysis for a better mitigation planning. Risk analysis is a process to determine the nature and extent of risk by estimating potential hazards and evaluating existing conditions of vulnerability that could pose a potential threat or harm to people, property, livelihoods and environment. This process has become a generally accepted approach for the assessment of cost-benefit scenarios; originating from technical risks it is being applied to natural hazards for several years now in Switzerland. Starting from these premises "Risk Lab", a joint collaboration between the Institute of Earth Sciences of the University of Applied Sciences of Southern Switzerland and the Institute for Economic Research of the University of Lugano, has been started in 2006, aiming to become a competence centre about Risk Analysis and Evaluation. The main issue studied by the lab concerns the topic "What security at what price?" and the activities follow the philosophy of the integral risk management as proposed by PLANAT, that defines the process as a cycle that contains different and interrelated phases. The final aim is to change the population and technician idea about risk from "defending against danger" to "being aware of risks" through a proper academic course specially addressed to young people. In fact the most important activity of the laboratory consists in a degree course, offered both to Engineering and Architecture students of the University of Applied Sciences of Southern Switzerland and Economy Students of the University of Lugano. The course is structured in two main parts: an introductive, theoretical part, composed by class lessons, where the main aspects of natural hazards, risk perception and evaluation and risk management are presented and analyzed, and a second part, composed by practical activities, where students can learn specific statistical methods and test and use technical software. Special importance is given to seminars held by experts or members of Civil Protection and risk management institutes. Excursions are often organized to directly see and study practical case studies (Eg. The city of Locarno and the lake Maggiore inundations). The course is organized following a "classical" structure (it's mainly held in a class or in an informatics lab), but students can also benefit from a special web portal, powered by "e.coursers" , the official USI/SUPSI Learning Management System , where they can find issues and documents about natural hazards and risk management. The main pedagogical value is that students can attend a course which is entirely devoted to dealing with natural and man-made hazards and risk, allowing them to resume geological, space planning and economic issues and to face real case studies in a challenging and holistic environment. The final aim of the course is to provide students an useful and integrated "toolbox", essential to cope with and to resolve the overwhelming problems due to vulnerability and danger increase of the present-day society. The course has by now reached the third academic year and the initial results are encouraging: beyond the knowledge and expertise acquired, the graduate students, that are now for the most part working in engineering studies or private companies, have shown to have acquired a mentality devoted to understanding and managing risk. REFERENCES PLANAT HTTP://WWW.CENAT.CH/INDEX.PHP?USERHASH=79598753&L=D&NAVID=154 ECOURSES HTTP://CORSI.ELEARNINGLAB.ORG/ NAHRIS HTTP://WWW.NAHRIS.CH/

Baruffini, Mi.; Baruffini, Mo.; Thuering, M.

2009-04-01

437

Plasma accelerators  

SciTech Connect

In this paper we discuss plasma accelerators which might provide high gradient accelerating fields suitable for TeV linear colliders. In particular we discuss two types of plasma accelerators which have been proposed, the Plasma Beat Wave Accelerator and the Plasma Wake Field Accelerator. We show that the electric fields in the plasma for both schemes are very similar, and thus the dynamics of the driven beams are very similar. The differences appear in the parameters associated with the driving beams. In particular to obtain a given accelerating gradient, the Plasma Wake Field Accelerator has a higher efficiency and a lower total energy for the driving beam. Finally, we show for the Plasma Wake Field Accelerator that one can accelerate high quality low emittance beams and, in principle, obtain efficiencies and energy spreads comparable to those obtained with conventional techniques.

Ruth, R.D.; Chen, P.

1986-03-01

438

Plasma in the Synthesis of Nanoparticles  

NASA Astrophysics Data System (ADS)

Development of nanotechnology, specifically the production of carbon nanotubes, may be integral to innovation in an array of fields, from textiles to electronics. The structure of carbon nanotubes affords for the creation of materials with exceptional strength and conductivity. At present, scientists rely on ``cut-and-try'' methods to perfect the plasma synthesis, leaving an interface gap between plasma and material sciences. As a result, methods of producing carbon nanotubes are expensive and length is difficult to standardize. Therefore, the development of a method to produce carbon nanotubes efficiently and in uniform sizes is of great interest. To elucidate the role of plasma in the synthesis of nanoparticles, Princeton Plasma Physics Lab is developing a Plasma-Based Nano Laboratory (PBNL). The PBNL houses an Electron Diffusion Gauge Experiment (EDGE) as well as a Nanotube Arc Discharge Experiment (NADE) with the purpose of investigating plasma-nanoparticle interaction. The NADE studies the ability to control the diameter and length of nanotube formation through a set of experimental parameters. In addition, the potential to increase nanotube length will be studied. PPPL's expertise on plasma science could be critically valuable to the successful development of highly efficient and low cost plasma-based techniques, which have the potential to increase accessibility of nanotubes, and propel further innovation rooted in nanotechnology.

Laub, Taylor; Gentile, Charles; Raitses, Yevgeny

2011-11-01

439

19. NBS SUIT LAB. STORAGE SHELF WITH LIQUID COOLING VENTILATION ...  

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

19. NBS SUIT LAB. STORAGE SHELF WITH LIQUID COOLING VENTILATION GARMENT (LCVG), SUIT GLOVES, WAIST INSERTS, UPPER AND LOWER ARMS (LEFT, FROM TOP TO BOTTOM), LOWER TORSO ASSEMBLIES (LTA) (MIDDLE RIGHT TO LOWER RIGHT). - Marshall Space Flight Center, Neutral Buoyancy Simulator Facility, Rideout Road, Huntsville, Madison County, AL

440

Remote Lab: A Reliable Tele-Laboratory Environment  

Microsoft Academic Search

Experiments on real physical systems play a major role in engineering disciplines. Traditionally, the use of real physical systems requires a students' physical presence in the laboratory. We have developed the RemoteLab tele- laboratory environment, which allows students to remotely conduct physical experiments via the Web, creating a reliable integrated virtual and real laboratory education environment. The main challenge in

Janek Schwarz; Andreas Polze; Kristopher Wehner; Lui Sha

2000-01-01

441

Lightning Observations with the Upgraded Lanmguir Lab Lightning Mapping Array  

Microsoft Academic Search

The Langmuir Lab Lightning Mapping Array (LMA) is located on and around the Magdalena Mountains in central New Mexico. Recently there have been several improvements to the LMA which have dramatically increased its sensitivity. By switching most stations to solar power (which allows us to place them far from buildings and power lines) and reducing the noise of the power

W. Rison; P. R. Krehbiel; S. Hunyady; H. E. Edens; G. D. Aulich

2010-01-01

442

Remote intelligent nuclear facility monitoring in LabVIEW  

SciTech Connect

A prototype system implemented in LabVIEW for the intelligent monitoring of the movement of radioactive` material within a nuclear facility is presented. The system collects and analyzes radiation sensor and video data to identify suspicious movement of material within the facility. The facility system also transmits wavelet- compressed data to a remote system for concurrent monitoring. 2 refs., 2 figs.

Kucewicz, J.C.; Argo, P.E.; Caffrey, M.; Loveland, R.C.; McNeil, P.J.

1996-08-01

443

A Lab with a View: American Postdocs Abroad  

ERIC Educational Resources Information Center

|As recently as the early 1970s, a postdoctoral research experience overseas was a valued part of training for a U.S. biologist aspiring to an academic position. Not only did the U.S. scientists benefit educationally from participating in different laboratory and cultural systems, but labs outside the United States were enriched by the ideas,…

Gladfelter, Amy

2002-01-01

444

A LabVIEW based virtual instrument for power analyzers  

Microsoft Academic Search

In this paper, a PC-based virtual instrument (VI) for a power analyzer is developed. Instead of theoretical research, a practical VI that can be integrated into an existing VI system is developed. The functions of power analyzer developed in this paper include the harmonic analyzer and instantaneous power measurement. The proposed VI is based on the LabVIEW (Laboratory Virtual Instrument

Jen-Hao Teng; Shun-Yu Chan; Jin-Chang Lee; R. Lee

2000-01-01

445

Diurnal Body Temperature Rhythm (21st C project Lab)  

NSDL National Science Digital Library

Instructions and background for designing an inquiry lab that allow students to monitor the circadian rhythm of body temperature. Promotes experimental design, data collection, and quantitative skills. NOTE: This description of a laboratory exercise is meant to be a guide to faculty in planning and writing a laboratory activity for their students and should not be used as a student handout.

PhD Robert G. Carroll (East Carolina State University Department of Physiology)

2006-06-29

446

Developing Nontraditional Biology Labs to Challenge Students & Enhance Learning  

ERIC Educational Resources Information Center

|Laboratory experience and skills are not only essential for success in science studies, but are the most exciting and rewarding aspects of science for students. As a result, many biology teachers have become critical of the efficacy of cookbook-type laboratory activities as well as the purposes, practices, and learning outcomes of lab experiments…

Cherif, Abour H.; Siuda, JoElla E.; Movahedzadeh, Farahnaz

2013-01-01

447

Student's Lab Assignments in PDE Course with MAPLE.  

ERIC Educational Resources Information Center

Computer-aided software has been used intensively in many mathematics courses, especially in computational subjects, to solve initial value and boundary value problems in Partial Differential Equations (PDE). Many software packages were used in student lab assignments such as FORTRAN, PASCAL, MATLAB, MATHEMATICA, and MAPLE in order to accelerate…

Ponidi, B. Alhadi

448

Synthesis of Nanostructured LaB6 Powders.  

National Technical Information Service (NTIS)

Nanocrystalline powders of LaB6 with an average crystallite size of 20 nm, as determined from x-ray diffraction analysis, have been obtained using a combustion synthesis technique that makes use of lanthanum nitrate, boron, and carbohydrazide as precursor...

O. A. Graeve

2007-01-01

449

State of Art of LaB6 Research, 1978.  

National Technical Information Service (NTIS)

An overview of present understanding of physics in LaB6 is given: Band-structure in bulk and on surface, phonon modes, emission characteristics, surface stability and fabrication methods are touched upon. No attempt at an in-depth correlation of research ...

H. Kanter N. M. Mendoza A. B. Chase

1979-01-01

450

Choosing Equipment and Setting Policies in Radio and Television Labs.  

ERIC Educational Resources Information Center

To assist broadcast educators who frequently find themselves short on information when they make arguments for equipment purchases or advocate policies for radio or television labs, a survey was conducted of educators at 278 schools with broadcast programs. Replies were received from 108 educators in radio programs and 112 in television programs.…

Larson, Mary Strom

451

45. BUILDING NO. 462, CHEMISTRY LAB (FORMERLY TRACER LOADING BUILDING), ...  

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

45. BUILDING NO. 462, CHEMISTRY LAB (FORMERLY TRACER LOADING BUILDING), VIEW LOOKING SOUTHEAST AT WEST SIDE. BUILDING NO. 462-B, GENERAL PURPOSE MAGAZINE, AT LEFT. - Picatinny Arsenal, 400 Area, Gun Bag Loading District, State Route 15 near I-80, Dover, Morris County, NJ

452

18. VIEW OF THE GENERAL CHEMISTRY LAB. THE LABORATORY PROVIDED ...  

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

18. VIEW OF THE GENERAL CHEMISTRY LAB. THE LABORATORY PROVIDED GENERAL ANALYTICAL AND STANDARDS CALIBRATION, AS WELL AS DEVELOPMENT OPERATIONS INCLUDING WASTE TECHNOLOGY DEVELOPMENT AND DEVELOPMENT AND TESTING OF MECHANICAL SYSTEMS FOR WEAPONS SYSTEMS. (4/4/66) - Rocky Flats Plant, General Manufacturing, Support, Records-Central Computing, Southern portion of Plant, Golden, Jefferson County, CO

453

Miniaturized Lab-on-a-Disc (miniLOAD).  

PubMed

A miniaturized centrifugal microfluidic platform for lab-on-a-chip applications is presented. Unlike its macroscopic Lab-on-a-CD counterpart, the miniature Lab-on-a-Disc (miniLOAD) device does not require moving parts to drive rotation of the disc, is inexpensive, disposable, and significantly smaller, comprising a 10-mm-diameter SU-8 disc fabricated through two-step photolithography. The disc is driven to rotate using surface acoustic wave irradiation incident upon a fluid coupling layer from a pair of offset, opposing single-phase unidirectional transducers patterned on a lithium niobate substrate. The irradiation causes azimuthally oriented acoustic streaming with sufficient intensity to rotate the disc at several thousand revolutions per minute. In this first proof-of-concept, the capability of the miniLOAD platform to drive capillary-based valving and mixing in microfluidic structures on a disc similar to much larger Lab-on-a-CD devices is shown. In addition, the ability to concentrate aqueous particle suspensions at radial positions in a channel in the disc dependent on the particles' size is demonstrated. To the best of our knowledge, the miniLOAD concept is the first centrifugal microfluidic platform small enough to be self-contained in a handheld device. PMID:22488691

Glass, Nick R; Shilton, Richie J; Chan, Peggy P Y; Friend, James R; Yeo, Leslie Y

2012-04-10

454

Choosing Equipment and Setting Policies in Radio and Television Labs.  

ERIC Educational Resources Information Center

|To assist broadcast educators who frequently find themselves short on information when they make arguments for equipment purchases or advocate policies for radio or television labs, a survey was conducted of educators at 278 schools with broadcast programs. Replies were received from 108 educators in radio programs and 112 in television programs.…

Larson, Mary Strom

455

New Type of Compton Polarimeter for Jefferson Lab Hall A.  

National Technical Information Service (NTIS)

In this paper, we present the principle and the studies for a new type of Compton polarimeter based on the use of power buildup Fabry-Perot cavity to get a 3% measurement of the Jefferson Lab electron polarization within minutes.

J. P. Jorda M. Authier M. Baylac E. Burtin C. Cavata

1998-01-01

456

Mag Lab U: Learning about Electricity and Magnetism  

NSDL National Science Digital Library

This website features photo, video, and simulation galleries that explore the fascinating worlds of electricity and magnetism. This extensive library includes illustrated tutorials, historical facts, and applications to new technology. Mag Lab U is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.

Davidson, Michael

2008-10-02

457

Design of the Source Development Lab bunch compressor.  

National Technical Information Service (NTIS)

The accelerator at the Source Development Lab at BNL consists of a 1.6 cell RF photocathode electron gun followed by a 230 MeV SLAC-type linac that includes a magnetic chicane bunch compressor. The nominal specifications call for a 10 ps FWHM bunch of 2nC...

W. S. Graves I. Ben-Zvi E. D. Johnson S. Krinsky J. Skaritka

1997-01-01

458

Cyclotron laboratory (CyLab) of Slovak metrological institute.  

National Technical Information Service (NTIS)

The calculations of parameters of the compact isochronous cyclotron 'CyLab' (Slovak Republic) for medical diagnostics and other applied purposes are presented. The accelerator will be able to deliver from H(sup +) ions to Xe(sup +40) ions, with energies 7...

O. N. Borisov S. B. Vorozhtsov G. G. Gul'bekyan G. A. Karamysheva N. A. Morozov

1997-01-01

459

Student's Lab Assignments in PDE Course with MAPLE.  

ERIC Educational Resources Information Center

|Computer-aided software has been used intensively in many mathematics courses, especially in computational subjects, to solve initial value and boundary value problems in Partial Differential Equations (PDE). Many software packages were used in student lab assignments such as FORTRAN, PASCAL, MATLAB, MATHEMATICA, and MAPLE in order to accelerate…

Ponidi, B. Alhadi

460

Engaging with science: High school students in summer lab internships  

NASA Astrophysics Data System (ADS)

Years of research and rhetoric have suggested that students should be given the opportunity to work with practicing scientists as a way to develop more sophisticated ideas about the nature of science, yet little research about these experiences exists. This project uses a case study approach to examine the experience of eight high school students working part-time during one summer as research assistants in biomedical laboratories. The students completed small research studies under the supervision of scientist-mentors. This dissertation explores questions related to how these students learned to work in a lab, in what ways they grew to understand this scientific context, and how their own relationships with science changed. The goal of looking at these young adults' summer experiences in science labs is to make suggestions for three settings: programs like this one, where high school students work closely with scientists in lab settings; other programs where scientists and students work together; and science education more generally. Analysis of pre- and post-interviews with students, and extensive observations of their laboratory work, suggests that students develop new ideas about the culture of science and the day-to-day workings of the labs. These ideas hold potential power for the students, and other participants in both similar and different educational settings, as they prepare for lives as scientifically engaged adults.

Bequette, Marjorie Bullitt

461

Ionic Liquids and Green Chemistry: A Lab Experiment  

ERIC Educational Resources Information Center

|Although ionic liquids have been investigated as solvents for many applications and are starting to be used in industrial processes, only a few lab experiments are available to introduce students to these materials. Ionic liquids have been discussed in the context of green chemistry, but few investigations have actually assessed the degree of…

Stark, Annegret; Ott, Denise; Kralisch, Dana; Kreisel, Guenter; Ondruschka, Bernd

2010-01-01

462

Modelling the Landing of a Plane in a Calculus Lab  

ERIC Educational Resources Information Center

|We exhibit a simple model of a plane landing that involves only basic concepts of differential calculus, so it is suitable for a first-year calculus lab. We use the computer algebra system Maxima and the interactive geometry software GeoGebra to do the computations and graphics. (Contains 5 figures and 1 note.)|

Morante, Antonio; Vallejo, Jose A.

2012-01-01

463

A Lab Experience to Illustrate the Physicochemical Principles of Detergency  

ERIC Educational Resources Information Center

|This article presents a lab experience to study detergency from a physicochemical point of view intended for undergraduate students. By means of a simple experimental device, we analyze the influence of the surfactant concentration in both distilled water and tap water. Our method is based on the measurement of diffuse reflectances of polyester…

Poce-Fatou, J. A.; Bethencourt-Nunez, M.; Moreno, C.; Pinto-Ganfornina, J. J.; Moreno-Dorado, F. J.

2008-01-01

464

LAB OF PROTEOMICS AND ANALYTICAL TECHNOLOGIES Prices 2012 & 2013  

Cancer.gov

08/23/13 Frederick National Laboratory for Cancer Research LAB OF PROTEOMICS AND ANALYTICAL TECHNOLOGIES Services without a price for a given year: may not be available, the price is pending or it hasn't been selected to be displayed on the web. Service

465

ATETV 101 Series: Uncovering Life in the Lab  

NSDL National Science Digital Library

ATETV continues to produce excellent web-based videos spotlighting advanced technical careers and educational programs. In this video, part of the 101 Series, watch employees work in a lab applying their knowledge and skills in Biotechnology to develop innovative new products. The video runs 3:27 and related videos can be found on the page to explore more information.

2012-06-13

466

Linear regression analysis in a first physics lab  

Microsoft Academic Search

Linear regression analysis (least squares) is used in the first physics lab in order to introduce students to computer-aided analysis and to teach data fitting techniques. Application is made to two experiments: Fletcher's trolley and Hooke's law. Least squares will extract information from raw data in a very precise way, and it opens the way for the study of more

Lawrence Hmurcik; Amy Slacik; Hilda Miller; Sandy Samoncik

1989-01-01

467

Usability Research in the Writing Lab: Sustaining Discourse and Pedagogy  

Microsoft Academic Search

Redesigning Purdue's Online Writing Lab (OWL) presented the opportunity for collaboration among Writing Center and Professional Writing Program members. While the article briefly describes the OWL redesign process, the argument focuses on collaboration and presents a model for sustainable intraprogram collaboration. Following Hawhee, usability research is defined as “invention-in-the-middle,” which offers a model for understanding research process as part of

Michael J. Salvo; Jingfang Ren; H. Allen Brizee; Tammy S. Conard-Salvo

2009-01-01

468

An architecture for virtual labs in engineering education  

Microsoft Academic Search

This paper describes the preliminary results of an educational innovation project in which virtual world technologies have been used to build up a set of virtual laboratories oriented to engineering studies. Focusing on the architecture of a biotechnology laboratory created in this project, we describe how this architecture will also be adopted in other labs under construction, so that these

Mariano Rico; Jaime Ramirez; Diego Riofrio; Marta Berrocal-Lobo; Angelica de Antonio

2012-01-01

469

Online Writing Labs (OWLs): A Taxonomy of Options and Issues.  

ERIC Educational Resources Information Center

Offers an overview and schema for understanding frequently used network technologies available for Online Writing Labs (OWLs)--electronic mail, gopher, World Wide Web, newsgroups, synchronous chat systems, and automated file retrieval systems. Considers ways writing centers' choices among these technologies are impacted by user access, network…

Harris, Muriel; Pemberton, Michael

1995-01-01

470

Safety in the Chemical Laboratory: Chemical Wastes in Academic Labs.  

ERIC Educational Resources Information Center

Encourages instruction about disposal of hazardous wastes in college chemistry laboratories as an integral part of experiments done by students. Discusses methods such as down-the-drain disposal, lab-pack disposal, precipitation and disposal, and precipitation and recovery. Suggests that faculty and students take more responsibility for waste…

Walton, Wendy A.

1987-01-01

471

Safety in the Chemical Laboratory: Chemical Wastes in Academic Labs.  

ERIC Educational Resources Information Center

|Encourages instruction about disposal of hazardous wastes in college chemistry laboratories as an integral part of experiments done by students. Discusses methods such as down-the-drain disposal, lab-pack disposal, precipitation and disposal, and precipitation and recovery. Suggests that faculty and students take more responsibility for waste…

Walton, Wendy A.

1987-01-01

472

A Research Configuration for a Digital Network Forensic Lab  

Microsoft Academic Search

Summary form only given. The digital forensic network lab is implemented with the goal of providing all students and faculty with a configurable research environment ideally suited for conducting network forensic testing on all TCP\\/IP network protocols passing through it. Of particular interest are protocols that are commonly used for file sharing, message passing, and those that actively obfuscate or

Jeffrey S. Marean; Mike Losavio; Ibrahim N. Imam

2008-01-01

473

Lab Activity: Earth's Energy Budget and the Greenhouse Effect  

NSDL National Science Digital Library

"Earth's Energy Budget and the Greenhouse Effect" is a lab activity in which students use computers and scientific applications software to access, display, describe, analyze, and interpret global, climate-related data sets related to the earth's energy budget and the greenhouse effect.

Dempsey, Dave

474

Lab Creates 'Fake Vomit' To Test Space Trash Bag  

NASA Video Gallery

After answering the question of how the space potty works, astronaut Mike Massimino now visits a NASA lab where chemists have been working hard to develop a next-generation trash bag for future exploration, including testing different forms of trash...and fake vomit.

Jim Wilson

2010-08-26

475

The Teacher Education Computer Lab: Planning, Development and Management.  

ERIC Educational Resources Information Center

This paper focuses on the preparation for and development of a teacher education computer lab at Eastern Nazarene College (Massachusetts). Topics addressed include: (1) events leading up to the identification of the need for such a facility, including the authors' intense technology-based professional development experiences and the passing of the…

Shopland, Patricia P.; Kannegieser, Joan K.

476

SMILE Lab: Current-Carrying Coils in Magnetic Fields  

NSDL National Science Digital Library

This lesson plan contains instructions for conducting an inquiry-based lab to investigate current-carrying coils in magnetic fields. Students construct a simple galvanometer from film cannisters and other readily-obtainable materials. The author includes follow-up questions to stimulate learning. This item is part of a larger set of lesson plans in the SMILE collection of resources.

Johnson, Porter

2006-07-18

477

Ionic Liquids and Green Chemistry: A Lab Experiment  

ERIC Educational Resources Information Center

Although ionic liquids have been investigated as solvents for many applications and are starting to be used in industrial processes, only a few lab experiments are available to introduce students to these materials. Ionic liquids have been discussed in the context of green chemistry, but few investigations have actually assessed the degree of…

Stark, Annegret; Ott, Denise; Kralisch, Dana; Kreisel, Guenter; Ondruschka, Bernd

2010-01-01

478

The Neverending Flame An Ethical Debate on Lab Animal Research  

Microsoft Academic Search

Lab animal research is a moral and ethical issue th at forms a picket fence between humankind alike. It plays a crucial role in the dev elopment of theory and research in all aspects of medicine and psychology. The AVMA (American Veterinary Medical Association) and APA (American Psychological Association) recognize that animals play an imperative role in research testing for

Meghan Freese

479

Guidelines for affective signal processing (ASP): From lab to life  

Microsoft Academic Search

This article presents the rationale behind ACII2009's special session: Guidelines for Affective Signal Processing (ASP): From lab to life. Although affect is embraced by both science and engineering, its recognition has not reached a satisfying level. Through a concise overview of ASP and the automatic classification of affect, we provide understanding for the problems encountered. Next, we identify guidelines for

Egon L. van den Broek; Joris H. Janssen; Joyce H. D. M. Westerink; J. Cohn; A. Nijholt; M. Pantic

2009-01-01

480

Modeling the Compact Disc Read System in Lab  

ERIC Educational Resources Information Center

|One of the great, engaging aspects of physics is its application to everyday technology. The compact disc player is an example of one such technology that applies fundamental principles from optics in order to efficiently store and quickly retrieve information. We have created a lab in which students use simple optical components to assemble a…

Hinaus, Brad; Veum, Mick

2009-01-01

481

Dancing Around My Technology Classroom Box (My Second RET Lab)  

ERIC Educational Resources Information Center

|The laboratory the author had been assigned for his RET (Research Experience for Teachers) at Vanderbilt University is new and different from the one he had previously experienced. This summer he was assigned to the Microfluidics and Lab-on-a-chip laboratory to help research dielectrophoresis. As this is an emerging technology, there was not a…

Carter, Terry

2010-01-01

482

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. STAIRWAY BETWEEN MAIN FLOOR OF MAGNET ROOM AND SECOND FLOOR OF OFFICE-AND-SHOP SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

483

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-046). March 2005. ROOF SHIELDING BLOCK AND I-BEAM SUPPORT CONSTRUCTION, CENTER OF BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

484

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-139). March 2005. TOP OF BEVATRON, INCLUDING WOOD STAIRWAY FROM OUTER EDGE OF SHIELDING TO TOP OF ROOF BLOCK SHIELDING - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

485

Photocopy of photograph (digital image maintained in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image maintained in LBNL Photo Lab Collection, XBD200503-00117-176). March 2005. CENTRAL COLUMN SUPPORT TO ROOF SHOWING CRANES CENTER SUPPORT TRACK, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

486

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-035). March 2005. WEST TANGENT VIEWED FROM INTERIOR OF BEVATRON. EQUIPMENT ACCESS STAIRWAY ON LEFT - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

487

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. STAIRWAY FROM MAIN FLOOR OF MAGNET ROOM TO TOP OF OUTER LAYER OF CONCRETE SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

488

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-031). March 2005. MOUSE AT EAST TANGENT, WITH COVER OPEN, LOOKING TOWARD CENTER IGLOO, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

489

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200506-00218-12). June 2005. DEEP TUNNEL INTO FOUNDATION UNDER BEVATRON, VIEW OF CART ON RAILS FOR TRANSPORTING EQUIPMENT - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

490

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200506-00198-08). June 2005. DUCTWORK BETWEEN FAN ROOM AND PASSAGEWAY UNDER BEVATRON, SOUTH SIDE OF ROOM 10, MAIN FLOOR, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

491

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. TOP OF BEVATRON, BUILDING 51 ROOF TRUSS, AND CENTRAL RING TRACK FOR MAGNET ROOM CRANE, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

492

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-034). March 2005. MOUSE AT EAST TANGENT WITH COVER CLOSED, LOOKING TOWARD CENTER IGLOO, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

493

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-009). March 2005. OPENINGS OF AIR DUCTS INTO PASSAGEWAY UNDER SOUTHEAST QUADRANT, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

494

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200506-00198-11). June 2005. DUCTWORK BETWEEN FAN ROOM AND PASSAGEWAY UNDER BEVATRON, NORTH SIDE OF ROOM 10, MAIN FLOOR, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

495

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-129). March 2005. ENTRY TO ROOM 24, MAIN FLOOR, OFFICE-AND-SHOPS SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

496

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-049). March 2005. TUNNEL ENTRY FROM MAIN FLOOR OF MAGNET ROOM INTO CENTER OF BEVATRON, BENEATH SOUTHWEST QUADRANT - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

497

Intelligent Mobile Lab for Metabolics in Environmental Monitoring  

Microsoft Academic Search

The flexible and modular setup of an intelligent mobile lab (IMOLA) that can be equipped with biosensor chips for monitoring of cellular metabolism is described. An application as an environmental monitoring system is described by recording the extracelluar acidification and cellular respiration of Chlorella kessleri after exposure to the herbicide metamitron. The adaptability of the IMOLA system to future developments

J. Wiest; T. Stadthagen; M. Schmidhuber; M. Brischwein; J. Ressler; U. Raeder; H. Grothe; A. Melzer; B. Wolf

2006-01-01

498

Using Ozone in Organic Chemistry Lab: The Ozonolysis of Eugenol  

ERIC Educational Resources Information Center

|An ozonolysis experiment, suitable for undergraduate organic chemistry lab, is presented. Ozonolysis of eugenol (clove oil), followed by reductive workup furnishes an aldehyde that is easily identified by its NMR and IR spectra. Ozone (3-5% in oxygen) is produced using an easily built generator. (Contains 2 figures and 1 scheme.)|

Branan, Bruce M.; Butcher, Joshua T.; Olsen, Lawrence R.

2007-01-01

499

The SHAPE Lab : New Technology and Software for Archaeologists  

Microsoft Academic Search

The SHAPE Lab was recently established (1999), with a grant from the United States National Science Foundation, by Brown University Departments of Engineering, Applied Mathematics, Computer Science and The Center for Old World Archaeology and Art and Department of Anthropology. It is a significant interdisciplinary effort for scientific research with a direct application to important problems in the analysis of

Frederic F. Leymarie; David B. Cooper; Martha Sharp Joukowsky; Benjamin B. Kimia; David H. Laidlaw; David Mumford; Eileen L. Vote

2000-01-01

500

Lab using Volcano Scenarios: Hazard Maps and Communicating Risk  

NSDL National Science Digital Library

This is a lab activity in which small groups of students work with maps, rocks, photographs of volcanic deposits, and textual data to construct a hazard map and a risk communication plan for a specific volcano. Each group is assigned a "volcano scenario," which is based on real volcanoes.

Srogi, Leeann