Evaluation of the antioxidant property and effects in Caenorhabditis elegans of Xiangxi flavor vinegar, a Hunan local traditional vinegar*

PubMed Central

HUANG, Run-ting; HUANG, Qing; WU, Gen-liang; CHEN, Chun-guang; LI, Zong-jun

2017-01-01

Xiangxi flavor vinegar (XV) is one of Hunan Province’s traditional fermented vinegars. It is produced from herb, rice, and spring water with spontaneous liquid-state fermentation techniques. In this study, we investigated the antioxidant property of XV by analyzing its antioxidant compounds, its free radical scavenging property in vitro and in vivo, and its effects on antioxidant enzyme activity and apoptosis in Caenorhabditis elegans. The results showed that XV is rich in antioxidants. In particular, ligustrazine reached 6.431 μg/ml. The in vitro 2,2-diphenyl-1-picrylhydrazyl free radical (DPPH•), hydroxyl radical (•OH), and superoxide anion radical (O2 •−) scavenging rates of XV were 95.85%, 97.22%, and 63.33%, respectively. The reactive oxygen species (ROS) content in XV-treated C. elegans decreased significantly (P<0.01) compared to the control group. Glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and catalase (CAT) activities were remarkably increased (P<0.01) in C. elegans after XV treatment. In addition, XV could upregulate CED-9 protein expression and downregulate CED-3 protein expression in C. elegans. These results prove that XV is rich in antioxidants and scavenges radicals in vitro efficiently. XV inhibits apoptosis in C. elegans probably by scavenging ROS and increasing the activities of its antioxidant enzymes. PMID:28378570

V/STOLAND digital avionics system for XV-15 tilt rotor

NASA Technical Reports Server (NTRS)

Liden, S.

1980-01-01

A digital flight control system for the tilt rotor research aircraft provides sophisticated navigation, guidance, control, display and data acquisition capabilities for performing terminal area navigation, guidance and control research. All functions of the XV-15 V/STOLAND system were demonstrated on the NASA-ARC S-19 simulation facility under a comprehensive dynamic acceptance test. The most noteworthy accomplishments of the system are: (1) automatic configuration control of a tilt-rotor aircraft over the total operating range; (2) total hands-off landing to touchdown on various selectable straight-in glide slopes and on a flight path that includes a two-revolution helix; (3) automatic guidance along a programmed three-dimensional reference flight path; (4) navigation data for the automatic guidance computed on board, based on VOR/DME, TACAN, or MLS navid data; and (5) integration of a large set of functions in a single computer, utilizing 16k words of storage for programs and data.

NASA/ARMY/BELL XV-15 Tiltrotor Low-Noise Terminal Area Operations Flight Research Program

NASA Technical Reports Server (NTRS)

Edwards, Bryan D.; Conner, David A.; Decker, William A.; Marcolini, Michael A.; Klein, Peter D.

2001-01-01

To evaluate the noise reduction potential for tiltrotor aircraft, a series of three XV- 15 acoustic flight tests were conducted over a five-year period by a NASA/Army/Bell Helicopter team. Lower hemispherical noise characteristics for a wide range of steady-state terminal area type operating conditions were measured during the Phase I test and indicated that the takeoff and level flight conditions were not significant contributors to the total noise of tiltrotor operations. Phase I results were also used to design low-noise approach profiles that were tested later during the Phase 2 and Phase 3 tests. These latter phases used large area microphone arrays to directly measure ground noise footprints. Approach profiles emphasized noise reduction while maintaining handling qualities sufficient for tiltrotor commercial passenger ride comfort and flight safety under Instrument Flight Rules (IFR) conditions. This paper will discuss the weather, aircraft, tracking, guidance, and acoustic instrumentation systems, as well as the approach profile design philosophy, and the overall test program philosophy. Acoustic results are presented to document the variation in tiltrotor noise due to changes in operating condition, indicating the potential for significant noise reduction using the unique tiltrotor capability of nacelle tilt. Recommendations are made for a final XV-15 test to define the acoustic benefits of the automated approach capability which has recently been added to this testbed aircraft.

Feasibility of Beginning a Program in Business Information Management. Volume XV, No. 9.

ERIC Educational Resources Information Center

Zilkowski, R.; Lucas, John A.

In December 1986, a study was conducted at Illinois' William Rainey Harper College (WRHC) to determine the feasibility of beginning a Business Information Management (BIM) program aimed at the middle-management level. A survey was mailed to 795 organizations with 250 or more employees in neighboring counties, requesting information on the interest…

A hingeless rotor XV-15 design integration feasibility study. Volume 1: Engineering design studies

NASA Technical Reports Server (NTRS)

Magee, J. P.; Alexander, H. R.

1978-01-01

A design integration feasibility study was carried out to investigate what modifications to the basic XV-15 were necessary to accomplish a flight demonstration of the XV-15 with a Boeing hingeless rotor. Also investigated were additional modifications which would exploit the full capability provided by the combination of the new rotor and the existing T53 engine. An evaluation of the aircraft is presented and the data indicate improved air vehicle performance, acceptable aeroelastic margins, lower noise levels and improved flying qualities compared with the XV-15 aircraft. Inspection of the rotor system data provided shows an essentially unlimited life rotor for the flight spectrum anticipated for the XV-15.

XV-15 Tiltrotor Low Noise Approach Operations

NASA Technical Reports Server (NTRS)

Conner, David A.; Marcolini, Michael A.; Decker, William A.; Cline, John H.; Edwards, Bryan D.; Nicks, Colby O.; Klein, Peter D.

1999-01-01

Acoustic data have been acquired for the XV-15 tiltrotor aircraft performing approach operations for a variety of different approach profile configurations. This flight test program was conducted jointly by NASA, the U.S. Army, and Bell Helicopter Textron, Inc. (BHTI) in June 1997. The XV-15 was flown over a large area microphone array, which was deployed to directly measure the noise footprint produced during actual approach operations. The XV-15 flew realistic approach profiles that culminated in IGE hover over a landing pad. Aircraft tracking and pilot guidance was provided by a Differential Global Positioning System (DGPS) and a flight director system developed at BHTI. Approach profile designs emphasized noise reduction while maintaining handling qualities sufficient for tiltrotor commercial passenger ride comfort and flight safety under Instrument Flight Rules (IFR) conditions. A discussion of the approach profile design philosophy is provided. Five different approach profiles are discussed in detail -- 3 deg., 6 deg., and 9 deg. approaches, and two very different 3 deg. to 9 deg. segmented approaches. The approach profile characteristics are discussed in detail, followed by the noise footprints and handling qualities. Sound exposure levels are also presented on an averaged basis and as a function of the sideline distance for a number of up-range distances from the landing point. A comparison of the noise contour areas is also provided. The results document the variation in tiltrotor noise due to changes in operating condition, and indicate the potential for significant noise reduction using the unique tiltrotor capability of nacelle tilt.

ARC-1959-AC-25685

NASA Image and Video Library

1959-08-15

XV-3 HOVERING ON RAMP. Flight Test of Bell XV-3 Convertiplane. Bell VTOL tilt-rotor aircraft hovering in front of building N-211 at Moffett Field. The XV-3 design combined a helicopter rotor and a wing. A 450 horsepower Pratt & Whitney piston engine drove the two rotors. The XV-3, first flown in 1955 , was the first tilt-rotor to achieve 100% tilting of rotors. The vehicle was underpowered, however, and could not hover out of ground effect. Note the large ventral fin, which was added to imrpove directional stability in cruse (Oct 1962)

A Hybrid Method Which Combines a Moment Method Current with an Asymptotic Current

DTIC Science & Technology

1981-05-01

s op SinceJp(x) in Equation (2.12) and Jp(R) in Equation (2.14) op op are approximations for Vt(K) and jS(f), respectively...approxi- mations for TM(R) and ImM can be written as 2 W f T M(R’)xV’G(r)ds’ + 2x TsM( ’)xV’G(r)ds’ MM St MS MM M + 2nix f iSp (R’)xv’G(r)ds’ (2.29) s op and...8217 (2.37) Jp(R) = 2fi’(R) + 2^nx fI ( pI)xv’G(r)ds’ op top + 2’x i s (R’)xV’G(r)ds’ (2.38) s op 20 .;ALI T;()= 2Rx f

Slow Muscle Precursors Lay Down a Collagen XV Matrix Fingerprint to Guide Motor Axon Navigation.

PubMed

Guillon, Emilie; Bretaud, Sandrine; Ruggiero, Florence

2016-03-02

The extracellular matrix (ECM) provides local positional information to guide motoneuron axons toward their muscle target. Collagen XV is a basement membrane component mainly expressed in skeletal muscle. We have identified two zebrafish paralogs of the human COL15A1 gene, col15a1a and col15a1b, which display distinct expression patterns. Here we show that col15a1b is expressed and deposited in the motor path ECM by slow muscle precursors also called adaxial cells. We further demonstrate that collagen XV-B deposition is both temporally and spatially regulated before motor axon extension from the spinal cord in such a way that it remains in this region after the adaxial cells have migrated toward the periphery of the myotome. Loss- and gain-of-function experiments in zebrafish embryos demonstrate that col15a1b expression and subsequent collagen XV-B deposition and organization in the motor path ECM depend on a previously undescribed two-step mechanism involving Hedgehog/Gli and unplugged/MuSK signaling pathways. In silico analysis predicts a putative Gli binding site in the col15a1b proximal promoter. Using col15a1b promoter-reporter constructs, we demonstrate that col15a1b participates in the slow muscle genetic program as a direct target of Hedgehog/Gli signaling. Loss and gain of col15a1b function provoke pathfinding errors in primary and secondary motoneuron axons both at and beyond the choice point where axon pathway selection takes place. These defects result in muscle atrophy and compromised swimming behavior, a phenotype partially rescued by injection of a smyhc1:col15a1b construct. These reveal an unexpected and novel role for collagen XV in motor axon pathfinding and neuromuscular development. In addition to the archetypal axon guidance cues, the extracellular matrix provides local information that guides motor axons from the spinal cord to their muscle targets. Many of the proteins involved are unknown. Using the zebrafish model, we identified an unexpected role of the extracellular matrix collagen XV in motor axon pathfinding. We show that the synthesis of collagen XV-B by slow muscle precursors and its deposition in the common motor path are dependent on a novel two-step mechanism that determines axon decisions at a choice point during motor axonogenesis. Zebrafish and humans use common molecular cues and regulatory mechanisms for the neuromuscular system development. And as such, our study reveals COL15A1 as a candidate gene for orphan neuromuscular disorders. Copyright © 2016 the authors 0270-6474/16/362663-14$15.00/0.

Image tools for UNIX

NASA Technical Reports Server (NTRS)

Banks, David C.

1994-01-01

This talk features two simple and useful tools for digital image processing in the UNIX environment. They are xv and pbmplus. The xv image viewer which runs under the X window system reads images in a number of different file formats and writes them out in different formats. The view area supports a pop-up control panel. The 'algorithms' menu lets you blur an image. The xv control panel also activates the color editor which displays the image's color map (if one exists). The xv image viewer is available through the internet. The pbmplus package is a set of tools designed to perform image processing from within a UNIX shell. The acronym 'pbm' stands for portable bit map. Like xv, the pbm plus tool can convert images from and to many different file formats. The source code and manual pages for pbmplus are also available through the internet. This software is in the public domain.

United States Air Force Graduate Student Research Program. Program Technical rept. Volume 1.

DTIC Science & Technology

1988-12-01

Notre Dame, IN 46556 (219) 239-5430 xv Paul R. Tanner Degree: B.A., Psychology, 1986 Dept. of Physiology Specialty: Sensory Neurophysiology Meharry...administrative arrangement of the program. It has been a rewarding and enlightening research experience at the Air Force Armament Laboratory at Eglin AFB. Dr... enlighten me on the possibilities of continuing my research effort in the future. 31-3 I. INTRODUCTION: The use of optical technology for communications

Welding Technology. A Competency Based Articulated Curriculum.

ERIC Educational Resources Information Center

Rosenbalm, Charles; And Others

This document is a competency-based curriculum guide designed to promote articulation in welding technology programs between and among secondary and postsecondary institutions in the Indian Hills Community College and Merged Area XV high schools in Iowa. The guide is organized in eight sections. The first six sections provide background…

Machine Trades. A Competency Based Articulated Curriculum.

ERIC Educational Resources Information Center

Mein, Jake; And Others

This document is a competency-based curriculum guide designed to promote articulation in machine trades vocational education programs between and among secondary and postsecondary institutions in the Indian Hills Community College and Merged Area XV high schools in Iowa. The guide is organized in 11 sections. The first six sections provide…

Effectiveness of the United States Marine Corps Tiered Evaluation System

DTIC Science & Technology

2015-03-01

RA Manpower and Reserve Affairs MCMAP Marine Corps Martial Arts Program MMPR Marine Corps Promotions Branch MOS military occupational specialty...STAP subsequent term alignment program TFDW Total Force Data Warehouse USMC United States Marine Corps xv THIS PAGE INTENTIONALLY LEFT BLANK...Furthermore, I would like to thank Mr. Tim Johnson at the Total Force Data Warehouse and Ms. Doreen Marucci at the Performance Evaluation Section for

AUTOMOTIVE DIESEL MAINTENANCE 2. UNIT XV, UNDERSTANDING DC GENERATOR PRINCIPLES (PART II).

ERIC Educational Resources Information Center

Human Engineering Inst., Cleveland, OH.

THIS MODULE OF A 25-MODULE COURSE IS DESIGNED TO DEVELOP AN UNDERSTANDING OF MAINTENANCE PROCEDURES FOR DIRECT CURRENT GENERATORS USED ON DIESEL POWERED EQUIPMENT. TOPICS ARE SPECIAL GENERATOR CIRCUITS, GENERATOR TESTING, AND GENERATOR POLARITY. THE MODULE CONSISTS OF A SELF-INSTRUCTIONAL PROGRAMED TRAINING FILM "DC GENERATORS II--GENERATOR…

The Evaluation Exchange. Volume XV Number 1. Spring 2010

ERIC Educational Resources Information Center

Coffman, Julia, Ed.; Harris, Erin, Ed.

2010-01-01

This issue of The Evaluation Exchange explores the promising practices and challenges associated with taking an enterprise to scale, along with the role that evaluation can and should play in that process. Surprisingly few examples exist of nonprofit efforts that have scaled up and achieved lasting success. A program or approach may be strong…

Child Development Programs (CDPs)

DTIC Science & Technology

1993-01-19

Child Abuse Training Modules for Caregivers, DoD Child Abuse Training Modules for Family Child Care Providers, DoD Family Child Care Training Modules, DoD CDP Standards and Inspection Checklist, DoD Child Development Need Survey, The DoD School-Age Care Training Modules, and DD Form 2636, DoD Certificate to Operate Child Development Programs, consistent with reference (9). 4. Implements Pub. L. No. 101-189, Title XV (reference (h)). 5. Replaces references (i) through

An Analysis of Information Systems Technology Initiatives and Small Businesses in the DoD Small Business Innovation Research (SBIR) Program

DTIC Science & Technology

2012-09-01

PAGE INTENTIONALLY LEFT BLANK xv LIST OF ACRONYMS AND ABBREVIATIONS CAE Component Acquisition Executive COTS Commercial Off-The-Shelf DARPA...and reduce program lifecycle costs by expanding the pool of vendors and incorporating small innovative high -tech businesses in defense IT...acquisition. Particularly within the high -tech IT sector, small businesses have been consistently recognized as exceptional resources for the research and

Transport and magnetic properties of disordered Li xV yO 2 ( x=0.8 and y=0.8)

NASA Astrophysics Data System (ADS)

Du, Fei; Li, Ang; Liu, Daliang; Zhan, Shiying; Hu, Fang; Wang, Chunzhong; Chen, Yan; Feng, Shouhua; Chen, Gang

2009-07-01

The magnetic and electron transport properties of rhombohedral Li xV yO 2 ( x=0.8 and y=0.8) are studied. The dc susceptibility of Li xV yO 2 can be well fitted to the modified Curie-Weiss law, which verified the paramagnetic ground state. The magnetic hysteresis and ac susceptibility also confirm this paramagnetism. The Li xV yO 2 exhibits semiconducting behavior, which is explained by thermal activated process at high temperature and variable-range hopping mechanism at low temperature. Anderson localization plays an important role in both the electron transport behavior and the magnetic behavior due to the site disorder between the Li + ion and V 4+ ion.

Review Guidelines for Software Languages for use in Nuclear Power Plant Safety Systems

DTIC Science & Technology

1997-10-01

desirable to segregate base classes from derived classes. Review is facilitated and safety is enhanced if project-specific guidance is provided on the... Segregate base from derived classes. In C++, it is desirable to segregate base classes from derived classes. 4.4.1.8 Minimizing Use of Literals...memory utilization. At the lowest level are base attributes, i.e., attributes xv NUREG/CR-6463 Rev. 1 sufficiently specific to define guidelines. An

Experiments indicating a second hydrogen ordered phase of ice VI

PubMed Central

Gasser, Tobias M.; Thoeny, Alexander V.; Plaga, Lucie J.; Köster, Karsten W.; Etter, Martin; Böhmer, Roland

2018-01-01

In the last twelve years five new ice phases were experimentally prepared. Two of them are empty clathrate hydrates and three of them represent hydrogen ordered counterparts of previously known disordered ice phases. Here, we report on hydrogen ordering in ice VI samples produced by cooling at pressures up to 2.00 GPa. Based on results from calorimetry, dielectric relaxation spectroscopy, Raman spectroscopy, and powder X-ray diffraction the existence of a second hydrogen ordered polymorph related to ice VI is suggested. Powder X-ray data show the oxygen network to be the one of ice VI. For the 1.80 GPa sample the activation energy from dielectric spectroscopy is 45 kJ mol–1, which is much larger than for the known hydrogen ordered proxy of ice VI, ice XV. Raman spectroscopy indicates the 1.80 GPa sample to be more ordered than ice XV. It is further distinct from ice XV in that it experiences hydrogen disordering above ≈103 K which is 26 K below the ice XV to ice VI disordering transition. Consequently, below 103 K it is thermodynamically more stable than ice XV, adding a stability region to the phase diagram of water. For the time being we suggest to call this new phase ice β-XV and to relabel it ice XVIII once its crystal structure is known. PMID:29780552

Experiments indicating a second hydrogen ordered phase of ice VI.

PubMed

Gasser, Tobias M; Thoeny, Alexander V; Plaga, Lucie J; Köster, Karsten W; Etter, Martin; Böhmer, Roland; Loerting, Thomas

2018-05-14

In the last twelve years five new ice phases were experimentally prepared. Two of them are empty clathrate hydrates and three of them represent hydrogen ordered counterparts of previously known disordered ice phases. Here, we report on hydrogen ordering in ice VI samples produced by cooling at pressures up to 2.00 GPa. Based on results from calorimetry, dielectric relaxation spectroscopy, Raman spectroscopy, and powder X-ray diffraction the existence of a second hydrogen ordered polymorph related to ice VI is suggested. Powder X-ray data show the oxygen network to be the one of ice VI. For the 1.80 GPa sample the activation energy from dielectric spectroscopy is 45 kJ mol -1 , which is much larger than for the known hydrogen ordered proxy of ice VI, ice XV. Raman spectroscopy indicates the 1.80 GPa sample to be more ordered than ice XV. It is further distinct from ice XV in that it experiences hydrogen disordering above ≈103 K which is 26 K below the ice XV to ice VI disordering transition. Consequently, below 103 K it is thermodynamically more stable than ice XV, adding a stability region to the phase diagram of water. For the time being we suggest to call this new phase ice β-XV and to relabel it ice XVIII once its crystal structure is known.

24 CFR 200.946 - Building product standards and certification program for exterior finish and insulation systems...

Code of Federal Regulations, 2012 CFR

2012-04-01

...) ASTM C-1186-91 Standard Specification for Flat Non-Asbestos Fiber-Cement Sheets. (v) ASTM D 579-90 Standard Specification for Greige Woven Glass Fabrics. (vi) ASTM D 3273-86—(Reapproved 1991) Standard Test... Glass Fiber Reinforcing Mesh for Use in Exterior Insulation and Finish Systems (EIFS), Class PB. (xv...

24 CFR 200.946 - Building product standards and certification program for exterior finish and insulation systems...

Code of Federal Regulations, 2014 CFR

2014-04-01

...) ASTM C-1186-91 Standard Specification for Flat Non-Asbestos Fiber-Cement Sheets. (v) ASTM D 579-90 Standard Specification for Greige Woven Glass Fabrics. (vi) ASTM D 3273-86—(Reapproved 1991) Standard Test... Glass Fiber Reinforcing Mesh for Use in Exterior Insulation and Finish Systems (EIFS), Class PB. (xv...

24 CFR 200.946 - Building product standards and certification program for exterior finish and insulation systems...

Code of Federal Regulations, 2013 CFR

2013-04-01

...) ASTM C-1186-91 Standard Specification for Flat Non-Asbestos Fiber-Cement Sheets. (v) ASTM D 579-90 Standard Specification for Greige Woven Glass Fabrics. (vi) ASTM D 3273-86—(Reapproved 1991) Standard Test... Glass Fiber Reinforcing Mesh for Use in Exterior Insulation and Finish Systems (EIFS), Class PB. (xv...

7 CFR 2.22 - Under Secretary for Marketing and Regulatory Programs.

Code of Federal Regulations, 2014 CFR

2014-01-01

... Consultative Group to Eliminate the Use of Child Labor and Forced Labor in Imported Agricultural Products. (2..., control or eradicate foot-and-mouth disease and other foreign animal diseases (21 U.S.C. 113a); (xiii) The... States in control and eradication of plant and animal diseases and pests; (xv) The Federal Noxious Weed...

7 CFR 2.22 - Under Secretary for Marketing and Regulatory Programs.

Code of Federal Regulations, 2013 CFR

2013-01-01

... Consultative Group to Eliminate the Use of Child Labor and Forced Labor in Imported Agricultural Products. (2..., control or eradicate foot-and-mouth disease and other foreign animal diseases (21 U.S.C. 113a); (xiii) The... States in control and eradication of plant and animal diseases and pests; (xv) The Federal Noxious Weed...

7 CFR 2.22 - Under Secretary for Marketing and Regulatory Programs.

Code of Federal Regulations, 2012 CFR

2012-01-01

... Consultative Group to Eliminate the Use of Child Labor and Forced Labor in Imported Agricultural Products. (2..., control or eradicate foot-and-mouth disease and other foreign animal diseases (21 U.S.C. 113a); (xiii) The... States in control and eradication of plant and animal diseases and pests; (xv) The Federal Noxious Weed...

7 CFR 2.22 - Under Secretary for Marketing and Regulatory Programs.

Code of Federal Regulations, 2011 CFR

2011-01-01

... Consultative Group to Eliminate the Use of Child Labor and Forced Labor in Imported Agricultural Products. (2..., control or eradicate foot-and-mouth disease and other foreign animal diseases (21 U.S.C. 113a); (xiii) The... States in control and eradication of plant and animal diseases and pests; (xv) The Federal Noxious Weed...

Annual Historical Review FY88

DTIC Science & Technology

1990-06-01

Army Executive Agent for RDA vi LTG Fred Hissong, Jr. DCG for Materiel Readiness Executive Director for Chemical and Nuclear Matters Executive Director...Chemical & Equal Employment To 31 March 1988 Nuclear Matters To 1 March 1988 To 1 January 1988 xv MG Thomas W. Kelly Mr. Edward Korte MG Eugene B. Leedy DCS...13 Chemical/ Nuclear ......................................... 14 Hazardous And Toxic Materials ............................... 14 International

Life-Work Balance and the Effects on Retention in the Navy Nurse Corps

DTIC Science & Technology

2017-03-01

information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering...Flexible Time Management Initiatives ............................ 74 3. Reevaluation of Non-Clinical Issues to Increase LWB...interference with family xv ACKNOWLEDGMENTS There are so many people who gave me their time , attention, and unconditional support. If I

OATYC Journal, Vol. XV, Nos. 1-2, Fall 1989-Spring 1990.

ERIC Educational Resources Information Center

Fullen, Jim, Ed.

1990-01-01

The OATYC Journal is published by the Ohio Association of Two-Year Colleges to provide the two-year colleges of Ohio with a medium for sharing concepts, methods and findings relevant to the two-year college classroom and to provide an open forum for problem discussion and review. The fall 1989 and spring 1990 issues of the journal contain:…

Ideas on Moral and Civil Upbringing of Personality in Italian and Ukrainian Pedagogy during the Renaissance

ERIC Educational Resources Information Center

Petruk, Natalia

2015-01-01

Important aspects of moral and civic upbringing of personality based on studying the experience of humanist pedagogy establishment in the Italian Renaissance in XIV-XV centuries and the Ukrainian Renaissance in XVI-XVII centuries have been reviewed in the article. It has been found out that under the influence of Renaissance in XVI-XVII centuries…

Frequency-response identification of XV-15 tilt-rotor aircraft dynamics

NASA Technical Reports Server (NTRS)

Tischler, Mark B.

1987-01-01

The timely design and development of the next generation of tilt-rotor aircraft (JVX) depend heavily on the in-depth understanding of existing XV-15 dynamics and the availability of fully validated simulation models. Previous studies have considered aircraft and simulation trim characteristics, but analyses of basic flight vehicle dynamics were limited to qualitative pilot evaluation. The present study has the following objectives: documentation and evaluation of XV-15 bare-airframe dynamics; comparison of aircraft and simulation responses; and development of a validated transfer-function description of the XV-15 needed for future studies. A nonparametric frequency-response approach is used which does not depend on assumed model order or structure. Transfer-function representations are subsequently derived which fit the frequency responses in the bandwidth of greatest concern for piloted handling-qualities and control-system applications.

Follow the Leader Tracking by Autonomous Underwater Vehicles (AUVs) Using Acoustic Communications and Ranging

DTIC Science & Technology

2003-09-01

590-595, September 1996. Deitel , H.M., Deitel , P.J., Nieto, T.R., Lin, T.M., Sadhu, P., XML: How to Program , Prentice Hall, 2001. Du, Y...communications will result in a total track following error equal to the sum of the errors for the two vehicles........48 xv Figure 36. Test point programming ...Refer to (Hunter 2000), ( Deitel 2001), or similar references for additional information regarding the XML standard. Figure 17. XML example

Demand Forecasting: DLA’S Aviation Supply Chain High Value Products

DTIC Science & Technology

2015-04-09

program at USS CONSTELLATION (CV 64), San Diego CA LCDR Carlos Lopez Education  MBA in Supply Chain Management, Naval Postgraduate School  BS in...Exponential Smoothing Forecasts ............... 118 xv Figure 80. NIIN 01-463-4340 Seasonal Exponential Smoothing Forecast .............. 119 Figure...5310 Seasonal Exponential Smoothing ............................ 142 Figure 102. NIIN 01-507-5310 12-Month Forecast Simulation

A Comprehensive Study of the Tocks Island Lake Project and Alternatives. Part A. Chapters I, II, III. Analysis of Service Areas and Resource Needs.

DTIC Science & Technology

1975-06-01

Conventional Hydroelectric and Pumped Storage Power XI- 49 2. Electric Power Demand XI- 53 3. Water Demand by Power Plants XI- 54 4. Fossil and Nuclear ...Systems and Temporary Evacuation XV- 32 12. Upstream Land Use and Agricultural Treatment XV- 32 13. Results and Criteria for Further Analysis XV- 33... resulted in record flows and significant flooding. The August, 1955, flood was a result of Hurricanes Connie and Diane. Northern New Jersey streams have had

Hover performance tests of baseline metal and Advanced Technology Blade (ATB) rotor systems for the XV-15 tilt rotor aircraft

NASA Technical Reports Server (NTRS)

Bartie, K.; Alexander, H.; Mcveigh, M.; Lamon, S.; Bishop, H.

1986-01-01

Rotor hover performance data were obtained for two full-scale rotor systems designed for the XV-15 Tilt Rotor Research Aircraft. One rotor employed the rectangular planform metal blades (rotor solidity = 0.089) which were used on the initial flight configuration of the XV-15. The second rotor configuration examined the nonlinear taper, composite-construction, Advanced Technology Blade (ATB), (rotor solidity = 0.10) designed to replace the metal blades on the XV-15. Variations of the baseline ATB tip and cuff shapes were also tested. A new six-component rotor force and moment balance designed to obtain highly accurate data over a broad range of thrust and torque conditions is described. The test data are presented in nondimensional coefficient form for the performance results, and in dimensional form for the steady and alternating loads. Some wake and acoustic data are also shown.

Continuous Preconcentrator for Trace Gas Analysis (Preprint)

DTIC Science & Technology

2009-05-21

several ppb to several hundreds of ppb) gradually impact human health and raise concerns for the general public.xv In any of these cases, but...The large number of patents on the subject makes a complete comprehensive review impossible, but general characteristics will be discussed along...established technology and the general trend in their development is towards faster and more accurately controlled desorption systems. A natural progression

War and Escalation in South Asia

DTIC Science & Technology

2006-01-01

their foreign area officer expertise in the region, especially through language training (p. 85). Summary xv • Review special operations forces...stability, based on an effective central gov- ernment and denial of safe haven for terrorists. In Nepal and Sri Lanka, we will support processes to...U.S.-Pakistan Defense Consultative Group processes — has historically proven the highest-leverage U.S. policy instrument. The Near East South Asia

Using frequency-domain methods to identify XV-15 aeroelastic modes

NASA Technical Reports Server (NTRS)

Acree, C. W., Jr.; Tischler, Mark B.

1987-01-01

The XV-15 Tilt-Rotor wing has six major aeroelastic modes that are close in frequency. To precisely excite individual modes during flight test, dual flaperon exciters with automatic frequency-sweep controls were installed. The resulting structural data were analyzed in the frequency domain (Fourier transformed) with cross spectral and transfer function methods. Modal frequencies and damping were determined by performing curve fits to transfer function magnitude and phase data and to cross spectral magnitude data. Results are given for the XV-15 with its original metal rotor blades. Frequency and damping values are also compared with earlier predictions.

Proceedings of the Annual Meeting of the Association for Education in Journalism and Mass Communication (74th, Boston, Massachusetts, August 7-10, 1991). Part XV: Public Relations.

ERIC Educational Resources Information Center

Association for Education in Journalism and Mass Communication.

The Public Relations section of the proceedings contains the following 14 papers: "Telling the Truth in Public Relations: An Application of the Narrative Paradigm" (Stephen P. Banks); "Teaching Fund Raising in Public Relations Programs: A National Study of the Attitudes and Behaviors of Educators" (Kathleen S. Kelly); "The…

Preliminary design study of advanced composite blade and hub and nonmechanical control system for the tilt-rotor aircraft. Volume 2: Project planning data

NASA Technical Reports Server (NTRS)

1980-01-01

Project planning data for a rotor and control system procurement and testing program for modifications to the XV-15 tilt-rotor research demonstrator aircraft is presented. The design, fabrication, and installation of advanced composite blades compatible with the existing hub, an advanced composite hub, and a nonmechanical control system are required.

An experimental and analytical method for approximate determination of the tilt rotor research aircraft rotor/wing download

NASA Technical Reports Server (NTRS)

Jordon, D. E.; Patterson, W.; Sandlin, D. R.

1985-01-01

The XV-15 Tilt Rotor Research Aircraft download phenomenon was analyzed. This phenomenon is a direct result of the two rotor wakes impinging on the wing upper surface when the aircraft is in the hover configuration. For this study the analysis proceeded along tow lines. First was a method whereby results from actual hover tests of the XV-15 aircraft were combined with drag coefficient results from wind tunnel tests of a wing that was representative of the aircraft wing. Second, an analytical method was used that modeled that airflow caused gy the two rotors. Formulas were developed in such a way that acomputer program could be used to calculate the axial velocities were then used in conjunction with the aforementioned wind tunnel drag coefficinet results to produce download values. An attempt was made to validate the analytical results by modeling a model rotor system for which direct download values were determinrd..

A Methodology for Implementing the Department of Defense’s Current In-Sourcing Policy

DTIC Science & Technology

2011-01-01

Riposo, Irv Blickstein, Stephanie Young , Geoffrey McGovern, Brian McInnis Prepared for the United States Navy Approved for public release; distribution... Keating for their thoughtful reviews of the draft manuscript. xv Abbreviations 2009 NDAA Duncan Hunter National Defense Authorization Act for Fiscal...some action by contract, policy, regulation, authorization, order, or otherwise; • determine, protect, and advance United States economic , political

Symposium on Naval Hydrodynamics (10th), Hydrodynamics for Safety Fundamental Hydrodynamics

DTIC Science & Technology

1974-01-01

vessel, and certain controlled conditions. The numerical particularly the rudder, operates in the wake of investigation also shows that the experimental ...expressed in terms of dimensionless quantities N1,Y1, and XV The following rudder control .aeacteristics are based on non -dimenslonalizing parometers p...the waves begin to build extensive experimental programs would be in the second wave group . The mraximum required to adequately describe the rtarboard

77 FR 76572 - Self-Regulatory Organizations; The NASDAQ Stock Market LLC; Notice of Filing and Immediate...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-28

... Substance of the Proposed Rule Change NASDAQ proposes to modify Chapter XV, entitled ``Options Pricing,'' governing pricing for NASDAQ members using the NASDAQ Options Market (``NOM''), NASDAQ's facility for... modify Chapter XV, entitled ``Options Pricing,'' at Section 3 entitled ``NASDAQ Options Market--Access...

The United States, Latin America, and the Potential for a Naval and Defense Industrial Partnership: The Case of Brazil

DTIC Science & Technology

1993-03-01

at the XV Encontro da Associacao Nacional de Posgraduacao e Pesquisa em Ciencias Sociais (ANPOCS); Grupo de Trabalho Forcas Armadas, Estado e...XV Encontro da Associacao Nacional de Posgraduacao e Pesquisa em Ciencias Sociais (ANPOCS); Grupo de Trabalho Forcas Armadas, Estado e Sociedade

Tiltrotor Acoustic Flight Test: Terminal Area Operations

NASA Technical Reports Server (NTRS)

SantaMaria, O. L.; Wellman, J. B.; Conner, D. A.; Rutledge, C. K.

1991-01-01

This paper provides a comprehensive description of an acoustic flight test of the XV- 15 Tiltrotor Aircraft with Advanced Technology Blades (ATB) conducted in August and September 1991 at Crows Landing, California. The purpose of this cooperative research effort of the NASA Langley and Ames Research Centers was to obtain a preliminary, high quality database of far-field acoustics for terminal area operations of the XV-15 at a takeoff gross weight of approximately 14,000 lbs for various glide slopes, airspeeds, rotor tip speeds, and nacelle tilt angles. The test also was used to assess the suitability of the Crows Landing complex for full scale far-field acoustic testing. This was the first acoustic flight test of the XV-15 aircraft equipped with ATB involving approach and level flyover operations. The test involved coordination of numerous personnel, facilities and equipment. Considerable effort was made to minimize potential extraneous noise sources unique to the region during the test. Acoustic data from the level flyovers were analyzed, then compared with data from a previous test of the XV-15 equipped with Standard Metal Blades

Rotorcraft Aeromechanics Branch Home Page on the World Wide Web

NASA Technical Reports Server (NTRS)

Peterson, Randall L.; Warmbrodt, William (Technical Monitor)

1996-01-01

The tilt rotor aircraft holds great promise for improving air travel in the future. It's benefits include vertical take off and landing combined with airspeeds comparable to propeller driven aircraft. However, the noise from a tilt rotor during approach to a landing is potentially a significant barrier to widespread acceptance of these aircraft. This approach noise is primarily caused by Blade Vortex Interactions (BVI), which are created when the blade passes near or through the vortex trailed by preceding blades. The XV- 15 Aeroacoustic test will measure the noise from a tilt rotor during descent conditions and demonstrate several possible techniques to reduce the noise. The XV- 15 Aeroacoustic test at NASA Ames Research Center will measure acoustics and performance for a full-scale XV-15 rotor. A single XV-15 rotor will be mounted on the Ames Rotor Test Apparatus (RTA) in the 80- by 120-Foot Wind Tunnel. The test will be conducted in helicopter mode with forward flight speeds up to 100 knots and tip path plane angles up to +/- 15 degrees. These operating conditions correspond to a wide range of tilt rotor descent and transition to forward flight cases. Rotor performance measurements will be made with the RTA rotor balance, while acoustic measurements will be made using an acoustic traverse and four fixed microphones. The acoustic traverse will provide limited directionality measurements on the advancing side of the rotor, where BVI noise is expected to be the highest. Baseline acoustics and performance measurements for the three-bladed rotor will be obtained over the entire test envelope. Acoustic measurements will also be obtained for correlation with the XV-15 aircraft Inflight Rotor Aeroacoustic Program (IRAP) recently conducted by Ames. Several techniques will be studied in an attempt to reduce the highest measured BVI noise conditions. The first of these techniques will use sub-wings mounted on the blade tips. These subwings are expected to alter the size, strength, and location of the tip vortex, therefore changing the BVI acoustics of the rotor. The subwings are approximately 20% of the blade chord and increase the rotor radius by about 3 percent. Four different subwing configurations will be tested, including square tipped subwings with different angles of incidence. The ability of active controls to reduce BVI acoustics will also be assessed. The dynamic control system of the RTA will be used to implement open- and closed-loop active control techniques, including individual blade control. Open-loop testing will be conducted using a personal computer based, automated, real-time data acquisition system. This system features combined automated output of open loop control signals and automated data acquisition of the resulting test data. A final technique to alter the noise of the rotor will be examined. This will involve changing the number of blades from three to four. A four-bladed rotor hub has been fabricated on which the XV-15 blades will be mounted. While the solidity of the rotor will increase, much useful information can be gained by examining the changes in the thrust and RPM with four blades.

40 CFR Appendix Xv to Part 86 - Procedure for Determining an Acceptable Exhaust Regeneration Durability-Data Test Schedule for...

Code of Federal Regulations, 2011 CFR

2011-07-01

... Acceptable Exhaust Regeneration Durability-Data Test Schedule for Diesel Cycle Vehicles Equipped With... Appendix XV to Part 86—Procedure for Determining an Acceptable Exhaust Regeneration Durability-Data Test... = Total number of regeneration emission tests. (Subscript “s” refers to standard test schedule) 5. Refer...

40 CFR Appendix Xv to Part 86 - Procedure for Determining an Acceptable Exhaust Regeneration Durability-Data Test Schedule for...

Code of Federal Regulations, 2012 CFR

2012-07-01

... Acceptable Exhaust Regeneration Durability-Data Test Schedule for Diesel Cycle Vehicles Equipped With... Appendix XV to Part 86—Procedure for Determining an Acceptable Exhaust Regeneration Durability-Data Test... = Total number of regeneration emission tests. (Subscript “s” refers to standard test schedule) 5. Refer...

40 CFR Appendix Xv to Part 86 - Procedure for Determining an Acceptable Exhaust Regeneration Durability-Data Test Schedule for...

Code of Federal Regulations, 2013 CFR

2013-07-01

... Acceptable Exhaust Regeneration Durability-Data Test Schedule for Diesel Cycle Vehicles Equipped With... Appendix XV to Part 86—Procedure for Determining an Acceptable Exhaust Regeneration Durability-Data Test... = Total number of regeneration emission tests. (Subscript “s” refers to standard test schedule) 5. Refer...

Engineering Decisions Under Risk-Averseness

DTIC Science & Technology

2013-12-13

Y (x′) may be different, especially in the critical upper tail. For example, if Y (x) = g(x,V ) = 100− xV1 − (1− x)V2, where V1 is normally...Econometrica, 47:263–291, 1979. [16] K. Kalinchenko, S. Uryasev, and R.T. Rockafellar. Calibrating risk preferences with generalized CAPM based on mixed

19 CFR Appendix to Part 102 - Textile and Apparel Manufacturer Identification

Code of Federal Regulations, 2014 CFR

2014-04-01

...)—XW NORTHWEST TERRITORIES—XT NOVA SCOTIA—XN NUNAVUT—XV ONTARIO—XO PRINCE EDWARD ISLAND—XP QUEBEC—XQ SASKATCHEWAN—XS YUKON TERRITORY—XV 3. The next group of characters in the MID consists of the first three... name, then only the first three characters from the name are to be used. For example, “Amalgamated...

Deterrence & Influence in Counterterrorism. A Component in the War on al Qaeda

DTIC Science & Technology

2002-02-01

13, 2001). Summary xv There is a lesson to learn from this for he who wishes to learn . . . . The Soviet Union entered Afghanistan in the last week of...subject needs urgent attention. Placing at Risk What the Terrorists Hold Dear: Convincing Regional Allies to Act One of the lessons learned from...formal reviews of the draft manuscript by Jerrold Green and Ambassador L. Paul Bremer. Although we learned a great deal from interactions with our

A perspective on 15 years of proof-of-concept aircraft development and flight research at Ames-Moffett by the Rotorcraft and Powered-Lift Flight Projects Division, 1970-1985

NASA Technical Reports Server (NTRS)

Few, David D.

1987-01-01

A proof-of-concept (POC) aircraft is defined and the concept of interest described for each of the six aircraft developed by the Ames-Moffet Rotorcraft and Powered-Lift Flight Projects Division from 1970 through 1985; namely, the OV-10, the C-8A Augmentor Wing, the Quiet Short-Haul Research Aircraft (QSRA), the XV-15 Tilt Rotor Research Aircraft (TRRA), the Rotor Systems Research Aircraft (RSRA)-compound, and the yet-to-fly RSRA/X-Wing Aircraft. The program/project chronology and most noteworthy features of the concepts are reviewed. The paper discusses the significance of each concept and the project demonstrating it; it briefly looks at what concepts are on the horizon as potential POC research aircraft and emphasizes that no significant advanced concept in aviation technology has ever been accepted by civilian or military users without first completing a demonstration through flight testing.

77 FR 56883 - Self-Regulatory Organizations; NASDAQ OMX BX, Inc.; Notice of Filing and Immediate Effectiveness...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-14

... Chapter XV, Section 2 entitled ``BX Options Market--Fees and Rebates'' to amend rebates and fees relating... Chapter XV, Section 2(1) to amend rebates and fees for Customers, BX Options Market Makers \\3\\ and Non... below,\\6\\ as follows: \\3\\ A BX Options Market Makers must be registered as such pursuant to Chapter VII...

XV-15 Tiltrotor Aircraft: 1997 Acoustic Testing

NASA Technical Reports Server (NTRS)

Edwards, Bryan D.; Conner, David A.

2003-01-01

XV-15 acoustic test is discussed, and measured results are presented. The test was conducted by NASA Langley and Bell Helicopter Textron, Inc., during June - July 1997, at the BHTI test site near Waxahachie, Texas. This was the second in a series of three XV-15 tests to document the acoustic signature of the XV-15 tiltrotor aircraft for a variety of flight conditions and minimize the noise signature during approach. Tradeoffs between flight procedures and the measured noise are presented to illustrate the noise abatement flight procedures. The test objectives were to: (1) support operation of future tiltrotors by further developing and demonstrating low-noise flight profiles, while maintaining acceptable handling and ride qualities, and (2) refine approach profiles, selected from previous (1995) tiltrotor testing, to incorporate Instrument Flight Rules (IFR), handling qualities constraints, operations and tradeoffs with sound. Primary emphasis was given to the approach flight conditions where blade-vortex interaction (BVI) noise dominates, because this condition influences community noise impact more than any other. An understanding of this part of the noise generating process could guide the development of low noise flight operations and increase the tiltrotor's acceptance in the community.

Simulation study of gust alleviation in a tilt rotor aircraft, volume 1

NASA Technical Reports Server (NTRS)

Amos, A. K.; Alexander, H. R.

1977-01-01

The response to vertical turbulence in cruise of the HTR XV-15 design is studied using simulation techniques. This design is a modified version of the XV-15 with a hingeless fiberglass soft-in-plane rotor system. The parameters of a gust alleviation system are determined and the performance of the system is evaluated over a range of cruise velocities and altitudes.

Bayer Facts of Science Education XV: A View from the Gatekeepers--STEM Department Chairs at America's Top 200 Research Universities on Female and Underrepresented Minority Undergraduate STEM Students

ERIC Educational Resources Information Center

Journal of Science Education and Technology, 2012

2012-01-01

Diversity and the underrepresentation of women, African-Americans, Hispanics and American Indians in the nation's science, technology, engineering and mathematics (STEM) fields are the subjects of the XV: A View from the Gatekeepers--STEM Department Chairs at America's Top 200 Research Universities on Female and Underrepresented Minority…

Comparative evaluation of Kodak EDR2 and XV2 films for verification of intensity modulated radiation therapy.

PubMed

Dogan, Nesrin; Leybovich, Leonid B; Sethi, Anil

2002-11-21

Film dosimetry provides a convenient tool to determine dose distributions, especially for verification of IMRT plans. However, the film response to radiation shows a significant dependence on depth, energy and field size that compromise the accuracy of measurements. Kodak's XV2 film has a low saturation dose (approximately 100 cGy) and, consequently, a relatively short region of linear dose-response. The recently introduced Kodak extended range EDR2 film was reported to have a linear dose-response region extending to 500 cGy. This increased dose range may be particularly useful in the verification of IMRT plans. In this work, the dependence of Kodak EDR2 film's response on the depth, field size and energy was evaluated and compared with Kodak XV2 film. Co-60, 6 MV, 10 MV and 18 MV beams were used. Field sizes were 2 x 2, 6 x 6, 10 x 10, 14 x 14, 18 x 18 and 24 x 24 cm2. Doses for XV2 and EDR2 films were 80 cGy and 300 cGy, respectively. Optical density was converted to dose using depth-corrected sensitometric (Hurter and Driffield, or H&D) curves. For each field size, XV2 and EDR2 depth-dose curves were compared with ion chamber depth-dose curves. Both films demonstrated similar (within 1%) field size dependence. The deviation from the ion chamber for both films was small forthe fields ranging from 2 x 2 to 10 x 10 cm2: < or =2% for 6, 10 and 18 MV beams. No deviation was observed for the Co-60 beam. As the field size increased to 24 x 24 cm2, the deviation became significant for both films: approximately 7.5% for Co-60, approximately 5% for 6 MV and 10 MV, and approximately 6% for 18 MV. During the verification of IMRT plans, EDR2 film showed a better agreement with the calculated dose distributions than the XV2 film.

United States Air Force Statistical Digest, Fiscal Year 1967, Twenty Second Edition

DTIC Science & Technology

1967-09-30

tests as part of the Air Force’s support of the National Sonic Boom Evaluation Program. (FOUO) 18 January 1967 A Titan III-C launched a second. group...Strategic Air Command and the North American Air Defense Command participated in a joint training exercise, TOP RUNG XV. The operation evaluated ...SnlA1’IXIIC • IlEI’EIlSIVE Figbter Interceptor !I . . . . . . Airborne Barly Warning and Control • Pofenae Syatem Evaluation .. • Air Defenee Mila11e

Accurate Wavelength Measurements and Modeling of Fe XV to Fe XIX Spectra Recorded in High-Density Plasmas between 13.5 and 17 Å

NASA Astrophysics Data System (ADS)

May, M. J.; Beiersdorfer, P.; Dunn, J.; Jordan, N.; Hansen, S. B.; Osterheld, A. L.; Faenov, A. Ya.; Pikuz, T. A.; Skobelev, I. Yu.; Flora, F.; Bollanti, S.; Di Lazzaro, P.; Murra, D.; Reale, A.; Reale, L.; Tomassetti, G.; Ritucci, A.; Francucci, M.; Martellucci, S.; Petrocelli, G.

2005-06-01

Iron spectra have been recorded from plasmas created at three different laser plasma facilities: the Tor Vergata University laser in Rome (Italy), the Hercules laser at ENEA in Frascati (Italy), and the Compact Multipulse Terawatt (COMET) laser at LLNL in California (USA). The measurements provide a means of identifying dielectronic satellite lines from Fe XVI and Fe XV in the vicinity of the strong 2p-->3d transitions of Fe XVII. About 80 Δn>=1 lines of Fe XV (Mg-like) to Fe XIX (O-like) were recorded between 13.8 and 17.1 Å with a high spectral resolution (λ/Δλ~4000) about 30 of these lines are from Fe XVI and Fe XV. The laser-produced plasmas had electron temperatures between 100 and 500 eV and electron densities between 1020 and 1022 cm-3. The Hebrew University Lawrence Livermore Atomic Code (HULLAC) was used to calculate the atomic structure and atomic rates for Fe XV-XIX. HULLAC was used to calculate synthetic line intensities at Te=200 eV and ne=1021 cm-3 for three different conditions to illustrate the role of opacity: optically thin plasmas with no excitation-autoionization/dielectronic recombination (EA/DR) contributions to the line intensities, optically thin plasmas that included EA/DR contributions to the line intensities, and optically thick plasmas (optical depth ~200 μm) that included EA/DR contributions to the line intensities. The optically thick simulation best reproduced the recorded spectrum from the Hercules laser. However, some discrepancies between the modeling and the recorded spectra remain.

Accurate wavelength measurements and modeling of FeXV to FeXIX spectra recorded in high density plasmas between 13.5 to 17 A.

DOE Office of Scientific and Technical Information (OSTI.GOV)

May, M; Beiersdorfer, P; Dunn, J

Iron spectra have been recorded from plasmas created at three different laser plasma facilities, the Tor Vergata University laser in Rome (Italy), the Hercules laser at ENEA in Frascati (Italy), and the Compact Multipulse Terawatt (COMET) laser at LLNL in California (USA). The measurements provide a means of identifying dielectronic satellite lines from FeXVI and FeXV in the vicinity of the strong 2p {yields} 3d transitions of FeXVII. About 80 {Delta}n {ge} 1 lines of FeXV (Mg-like) to FeXIX (O-like) were recorded between 13.8 to 17.1 {angstrom} with a high spectral resolution ({lambda}/{Delta}{lambda} {approx} 4000), about thirty of these linesmore » are from FeXVI and FeXV. The laser produced plasmas had electron temperatures between 100 to 500 eV and electron densities between 10{sup 20} to 10{sup 22} cm{sup -3}. The Hebrew University Lawrence Livermore Atomic Code (HULLAC) was used to calculate the atomic structure and atomic rates for FeXV to FeXIX. HULLAC was used to calculate synthetic line intensities at T{sub e} = 200 eV and n{sub e} = 10{sup 21}cm{sup -3} for three different conditions to illustrate the role of opacity: optically thin plasmas with no excitation-autoionization/dielectronic recombination (EA/DR) contributions to the line intensities, optically thin plasmas that included EA/DR contributions to the line intensities, and optically thick plasmas (optical depth {approx} 200 {micro}m) that included EA/DR contributions to the line intensities. The optically thick simulation best reproduced the recorded spectrum from the Hercules laser. However some discrepancies between the modeling and the recorded spectra remain.« less

XV-15 Tiltrotor Aircraft: 1999 Acoustic Testing - Test Report

NASA Technical Reports Server (NTRS)

Edwards, Bryan D.; Conner, David A.

2003-01-01

An XV-15 acoustic test is discussed, and measured results are presented. The test was conducted by NASA Langley and Bell Helicopter Textron, Inc., during October 1999, at the BHTI test site near Waxahachie, Texas. As part of the NASA-sponsored Short Haul Civil Tiltrotor noise reduction initiative, this was the third in a series of three major XV-15 acoustic tests. Their purpose was to document the acoustic signature of the XV-15 tiltrotor aircraft for a variety of flight conditions and to minimize the noise signature during approach. Tradeoffs between flight procedures and the measured noise are presented to illustrate the noise abatement flight procedures. The test objectives were to support operation of future tiltrotors by further developing and demonstrating low-noise flight profiles, while maintaining acceptable handling and ride qualities, and refine approach profiles, selected from previous (1995 & 1997) tiltrotor testing, to incorporate Instrument Flight Rules (IFR), handling qualities constraints, operations and tradeoffs with sound. Primary emphasis was given to the approach flight conditions where blade-vortex interaction (BVI) noise dominates, because this condition influences community noise impact more than any other. An understanding of this part of the noise generating process could guide the development of low noise flight operations and increase the tiltrotor's acceptance in the community.

Synthesis and antiinflammatory activity of some 2-arylamino-2-thiazoline-4-ones.

PubMed

Lesyk, Roman; Zimenkovsky, Boris; Subtelna, Ivanna; Nektegayev, Igor; Kazmirchuk, Gennadij

2003-01-01

A mild and efficent method of synthesis of 2-arylamino-2-thiazoline-4-ones was established using 2-carboethoxymethylthio-2-thiazolin-4-one (II) as a key intermediate. Reaction of 2-carboethoxymethylthio-2-thiazolin-4-one with m- or p-aminophenole afforded 2-(3-or4-oxyphenylamino)-2-thiazoline-4-ones (V, XV). Condensation of V, XV with aromatic aldehydes, according to the Knoevenagel, gives respective 5-arylidene derivatives V-XIII, XVI-XXIX, which were obtained alternatively using m- or p-oxyarylthioureas. 5-Carboxymethylderivatives XIV, XXX were synthesized by condensation of arylthioureas and maleic anhydride in acetic acid. Quantum-chemical calculations were made to confirm the possibility of dynamic amino-imino tautomerism of synthesized compounds. Structure and tautomerism of the obtained substances were confirmed by UV, IR, MS and NMR spectra. Biological activity prediction using the computer program PASS C&T has been made. According to these prediction results, some compounds were tested in vivio for their antiinflammatory activity. 5-[2-Chloro-3-(4-nitrophenyl)-2-propenilidene]-2-(3-hydroxyanilino-2-thiazoline-4-one (XII) possess significant antiinflammatory effect in comparison with diclofenac sodium, aspirin, acetaminofen and phenylbutazone.

Aerodynamic Design of Axial-flow Compressors. Volume III

NASA Technical Reports Server (NTRS)

Johnson, Irving A; Bullock, Robert O; Graham, Robert W; Costilow, Eleanor L; Huppert, Merle C; Benser, William A; Herzig, Howard Z; Hansen, Arthur G; Jackson, Robert J; Yohner, Peggy L;

XV-15 Tilt Rotor fly-by-wire collective control demonstrator development specifications

NASA Technical Reports Server (NTRS)

Meuleners, R. J.

1981-01-01

A fly by wire system in the collective control system for XV-15 Tilt Rotor Research Aircraft was evaluated. The collective control system was selected because it requires a system tracking accuracy between right and left rotors of approximately 0.1%. The performance characteristics of the collectors axel provide typical axis control response data. The demonstrator is bread boarded as a dual system instead of the triplex system.

XV-15 Low-Noise Terminal Area Operations Testing

NASA Technical Reports Server (NTRS)

Edwards, B. D.

1998-01-01

Test procedures related to XV-15 noise tests conducted by NASA-Langley and Bell Helicopter Textron, Inc. are discussed. The tests. which took place during October and November 1995, near Waxahachie, Texas, documented the noise signature of the XV-15 tilt-rotor aircraft at a wide variety of flight conditions. The stated objectives were to: -provide a comprehensive acoustic database for NASA and U.S. Industry -validate noise prediction methodologies, and -develop and demonstrate low-noise flight profiles. The test consisted of two distinct phases. Phase 1 provided an acoustic database for validating analytical noise prediction techniques; Phase 2 directly measured noise contour information at a broad range of operating profiles, with emphasis on minimizing 'approach' noise. This report is limited to a documentation of the test procedures, flight conditions, microphone locations, meteorological conditions, and test personnel used in the test. The acoustic results are not included.

VizieR Online Data Catalog: MOJAVE XV. VLBA 15GHz obs. of AGN jets 1996-2016 (Lister+, 2018)

NASA Astrophysics Data System (ADS)

Lister, M. L.; Aller, M. F.; Aller, H. D.; Hodge, M. A.; Homan, D. C.; Kovalev, Y. Y.; Pushkarev, A. B.; Savolainen, T.

2018-03-01

The VLBA maps in this paper are of 437 compact, radio-loud AGNs observed as part of the MOJAVE program. The data consist of 5321 observations of 437 AGNs in the 15GHz band, obtained between 1996 January 19 and 2016 December 26 with the VLBA in full polarization mode (Table 2). Most of the VLBA observations (86%) were carried out as part of the MOJAVE program (Paper V; Lister+ 2009, J/AJ/137/3718), while the remainder were downloaded from the NRAO archive. Most of the AGNs have between 5 and 15 VLBA observation epochs, although a substantial number have considerably more epochs. (3 data files).

Coaxial Compound Helicopter for Confined Urban Operations

DTIC Science & Technology

2016-01-22

climb or descent power for the aircraft) is obtained from the wind axis drag force and rotor velocity: ! Pp = "XV . The induced power is...speed. The induced and profile power cannot be measured separately in a wind tunnel or flight test, only the sum is available from ! P i + P o = P...XV (if the rotor wind -axis drag force ! X is measured or estimated). Therefore analysis is used to separate induced and profile power. In this

Frequency-Domain Identification Of Aeroelastic Modes

NASA Technical Reports Server (NTRS)

Acree, C. W., Jr.; Tischler, Mark B.

1991-01-01

Report describes flight measurements and frequency-domain analyses of aeroelastic vibrational modes of wings of XV-15 tilt-rotor aircraft. Begins with description of flight-test methods. Followed by brief discussion of methods of analysis, which include Fourier-transform computations using chirp z transformers, use of coherence and other spectral functions, and methods and computer programs to obtain frequencies and damping coefficients from measurements. Includes brief description of results of flight tests and comparisions among various experimental and theoretical results. Ends with section on conclusions and recommended improvements in techniques.

Solar-geophysical activity reports for STIP (study of travelling interplanetary phenomena) Interval 15, 12-21 February 1984 ground-level event and STIP Interval 16, 20 April-4 May 1984 Forbush decrease

DOE Office of Scientific and Technical Information (OSTI.GOV)

Coffey, H.E.; Allen, J.H.

1987-07-01

Contents include: solar-geophysical activity reports for STIP Interval XV 12-21 February 1984 ground-level event and STIP interval XVI 20 April-4 May 1984 Forbush decrease; overview of solar-terrestrial physics phenomena for STIP interval XV (12-21 February 1984) and STIP interval XVI (20 April-4 May 1984) (solar optical reports, solar radio events, spacecraft observations, cosmic ray observations, ionosphere, geomagnetism).

Wind Tunnel Test Results of 25 Foot Tilt Rotor During Autorotation

NASA Technical Reports Server (NTRS)

Marr, R. L.

1976-01-01

A 25 foot diameter tilt rotor was tested in the 40 by 80 foot large scale wind tunnel. The test confirmed the predicted autorotation capability of the XV-15 tilt rotor aircraft. Autorotations were made at 60, 80, and 100 knots. A limited evaluation of lateral cyclic was made. Test data indicate a minimum rate of descent of 2,200 feet per minute at 60 knots at the XV-15 design gross weight of 13,000 pounds.

Evolution of the magnetic and structural properties of Fe 1 - x Co x V 2 O 4

DOE PAGES

Sinclair, R.; Ma, Jie; Cao, H. B.; ...

2015-10-12

The magnetic and structural properties of single-crystal Fe 1-xCo xV 2O 4 samples have been investigated by performing specific heat, susceptibility, neutron diffraction, and x-ray diffraction measurements. As the orbital-active Fe 2+ ions with larger ionic size are gradually substituted by the orbital-inactive Co 2+ ions with smaller ionic size, the system approaches the itinerant electron limit with decreasing V-V distance. Then, various factors such as the Jahn-Teller distortion and the spin-orbital coupling of the Fe 2+ ions on the A sites and the orbital ordering and electronic itinerancy of the V 3+ ions on the B sites compete withmore » each other to produce a complex magnetic and structural phase diagram. Finally, this phase diagram is compared to those of Fe 1-xMn xV 2O 4 and Mn 1-xCo xV 2O 4 to emphasize several distinct features.« less

Preliminary design study of advanced composite blade and hub and nonmechanical control system for the tilt-rotor aircraft. Volume 1: Engineering studies

NASA Technical Reports Server (NTRS)

Alexander, H. R.; Smith, K. E.; Mcveigh, M. A.; Dixon, P. G.; Mcmanus, B. L.

1979-01-01

Composite structures technology is applied in a preliminary design study of advanced technology blades and hubs for the XV-15 tilt rotor research demonstrator aircraft. Significant improvements in XV-15 hover and cruise performance are available using blades designed for compatibility with the existing aircraft, i.e., blade installation would not require modification of the airframe, hub or upper controls. Provision of a low risk nonmechanical control system was also studied, and a development specification is given.

Comparative studies on the lethal, mutagenic, and recombinogenic effects of ultraviolet -A, -B, -C, and visible light with and without 8-methoxypsoralen in Saccharomyces cerevisiae.

PubMed

Mondon, P; Shahin, M M

1992-05-01

Genetic effects of UV-A, UV-B, UV-C, and the combination of 8-methoxypsoralen (8-MOP) with UV-A or visible light were studied in the haploid strain XV185-14C and diploid strain D5 of Saccharomyces cerevisiae. The induction of his+, lys+, and hom+ reverse mutations was measured in strain XV185-14C. In strain D5 we measured the induction of genetically altered colonies, particularly twin spot colonies arising from a mitotic crossing-over. UV-C and UV-B induced point mutations at the three loci in the haploid strain and mitotic crossing-over and other genetic alterations in the diploid strain. UV-C was more mutagenic and recombinogenic than UV-B. UV-A or visible light alone did not induce genotoxic effects at the doses tested. However, UV-A plus 8-MOP produced lethal and mutagenic effects in the haploid strain XV185-14C, although mutagenic activity was less than that of UV-B. Visible light plus 8-MOP also induced genotoxic effects in strain XV185-14C. In the diploid strain D5, UV-A plus 8-MOP induced a higher frequency of genetic alterations than UV-B at comparative doses. Visible light plus 8-MOP was also genetically active in strain D5. The haploid strain was more sensitive to the lethal effects of UV-C, UV-B, UV-A, and impure visible light plus 8-MOP than the diploid strain.

Accuracy of rapid radiographic film calibration for intensity‐modulated radiation therapy verification

PubMed Central

Kulasekere, Ravi; Moran, Jean M.; Fraass, Benedick A.; Roberson, Peter L.

2006-01-01

A single calibration film method was evaluated for use with intensity‐modulated radiation therapy film quality assurance measurements. The single‐film method has the potential advantages of exposure simplicity, less media consumption, and improved processor quality control. Potential disadvantages include cross contamination of film exposure, implementation effort to document delivered dose, and added complication of film response analysis. Film response differences were measured between standard and single‐film calibration methods. Additional measurements were performed to help trace causes for the observed discrepancies. Kodak X‐OmatV (XV) film was found to have greater response variability than extended dose range (EDR) film. We found it advisable for XV film to relate the film response calibration for the single‐film method to a user‐defined optimal calibration geometry. Using a single calibration film exposed at the time of experiment, the total uncertainty of film response was estimated to be <2% (1%) for XV (EDR) film at 50 (100) cGy and higher, respectively. PACS numbers: 87.53.‐j, 87.53.Dq PMID:17533325

Electromagnetic and light scattering by nonspherical particles XV: Celebrating 150 years of Maxwell's electromagnetics

NASA Astrophysics Data System (ADS)

Macke, Andreas; Mishchenko, Michael I.

2016-07-01

The 15th Electromagnetic and Light Scattering Conference (ELS-XV) was held in Leipzig, Germany from 21 to 26 of June 2015 (Fig. 1). This conference built on the great success of the previous meetings held in Amsterdam (1995) [1], Helsinki (1997) [2], New York City (1998) [3], Vigo (1999), Halifax (2000) [4], Gainesville (2002) [5], Bremen (2003) [6], Salobreña (2005) [7], St. Petersburg (2006) [8], Bodrum (2007) [9], Hatfield (2008) [10], Helsinki (2010) [11], Taormina (2011) [12], and Lille [13] as well as the workshops held in Bremen (1996, 1998) and Moscow (1997). As usual, the main objective of this conference was to bring together scientists, engineers, and PhD students studying various aspects of electromagnetic scattering and to provide a relaxed atmosphere for in-depth discussion of theory, measurements, and applications. Furthermore, ELS-XV supported the United Nations "Year of Light" and celebrated the 150th anniversary of Maxwell's electromagnetics. Maxwell's paper on "A Dynamical Theory of the Electromagnetic Field" [14] was published in 1865 and has widely been acknowledged as one of the supreme achievements in the history of science.

Preliminary simulation of an advanced, hingless rotor XV-15 tilt-rotor aircraft

NASA Technical Reports Server (NTRS)

Mcveigh, M. A.

1976-01-01

The feasibility of the tilt-rotor concept was verified through investigation of the performance, stability and handling qualities of the XV-15 tilt rotor. The rotors were replaced by advanced-technology fiberglass/composite hingless rotors of larger diameter, combined with an advanced integrated fly-by-wire control system. A parametric simulation model of the HRXV-15 was developed, model was used to define acceptable preliminary ranges of primary and secondary control schedules as functions of the flight parameters, to evaluate performance, flying qualities and structural loads, and to have a Boeing-Vertol pilot conduct a simulated flight test evaluation of the aircraft.

Partially ordered state of ice XV

PubMed Central

Komatsu, K.; Noritake, F.; Machida, S.; Sano-Furukawa, A.; Hattori, T.; Yamane, R.; Kagi, H.

2016-01-01

Most ice polymorphs have order–disorder “pairs” in terms of hydrogen positions, which contributes to the rich variety of ice polymorphs; in fact, three recently discovered polymorphs— ices XIII, XIV, and XV—are ordered counter forms to already identified disordered phases. Despite the considerable effort to understand order–disorder transition in ice crystals, there is an inconsistency among the various experiments and calculations for ice XV, the ordered counter form of ice VI, i.e., neutron diffraction observations suggest antiferroelectrically ordered structures, which disagree with dielectric measurement and theoretical studies, implying ferroelectrically ordered structures. Here we investigate in-situ neutron diffraction measurements and density functional theory calculations to revisit the structure and stability of ice XV. We find that none of the completely ordered configurations are particular favored; instead, partially ordered states are established as a mixture of ordered domains in disordered ice VI. This scenario in which several kinds of ordered configuration coexist dispels the contradictions in previous studies. It means that the order–disorder pairs in ice polymorphs are not one-to-one correspondent pairs but rather have one-to-n correspondence, where there are n possible configurations at finite temperature. PMID:27375120

XV-15 Structural-Acoustic Data

NASA Technical Reports Server (NTRS)

Lyle, Karen H.

1997-01-01

Tiltrotor aircraft are a potentially viable means of intercity travel. The tiltrotor is able to transport passengers relatively quickly from the center of a city to destinations within a 300-mile radius. For such vehicles to be commercially viable, the interior noise and vibration levels must be acceptable to the passengers. A review of the literature revealed very little structural-acoustic data related to the tiltrotor. For this reason, structural-acoustic measurements were taken aboard an XV-15 tiltrotor. The six flight conditions included five in level flight, nominally 140-220 knots, for airplane mode (nacelle at 0 degrees) and one out-of-ground-effect (OGE) hover (nacelle at 90 degrees). The flight test measurements included nine exterior surface pressures, five structural accelerations, and two interior pressures. These sensors were located near the tip path plane on the port side of the aircraft. One minute of data was acquired at each condition. The data is presented as time histories, autospectra, coherence functions, and cross-spectra. In general, for level flight, the measured data showed very little effect of forward flight speed except to change the amplitude of the response; however, the character of the response was found to be dependent on spatial location. In contrast, in the hover mode the spatial location had very little effect on the character of the response. Additionally, the report highlights: the coherence between the transducer data and the rotor tach signal; and transfer function calculations between the exterior pressures.

ωB97X-V: A 10-parameter, range-separated hybrid, generalized gradient approximation density functional with nonlocal correlation, designed by a survival-of-the-fittest strategy

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mardirossian, Narbe; Head-Gordon, Martin

2013-12-18

A 10-parameter, range-separated hybrid (RSH), generalized gradient approximation (GGA) density functional with nonlocal correlation (VV10) is presented in this paper. Instead of truncating the B97-type power series inhomogeneity correction factors (ICF) for the exchange, same-spin correlation, and opposite-spin correlation functionals uniformly, all 16 383 combinations of the linear parameters up to fourth order (m = 4) are considered. These functionals are individually fit to a training set and the resulting parameters are validated on a primary test set in order to identify the 3 optimal ICF expansions. Through this procedure, it is discovered that the functional that performs best onmore » the training and primary test sets has 7 linear parameters, with 3 additional nonlinear parameters from range-separation and nonlocal correlation. The resulting density functional, ωB97X-V, is further assessed on a secondary test set, the parallel-displaced coronene dimer, as well as several geometry datasets. Finally and furthermore, the basis set dependence and integration grid sensitivity of ωB97X-V are analyzed and documented in order to facilitate the use of the functional.« less

Home Versus Away Competition: Effect on Psychophysiological Variables in Elite Rugby Union.

PubMed

Cunniffe, Brian; Morgan, Kevin A; Baker, Julien S; Cardinale, Marco; Davies, Bruce

2015-09-01

This study evaluated the effect of game venue and starting status on precompetitive psychophysiological measures in elite rugby union. Saliva samples were taken from players (starting XV, n = 15, and nonstarters, n = 9) on a control day and 90 min before 4 games played consecutively at home and away venues against local rivals and league leaders. Precompetition psychological states were assessed using the Competitive State Anxiety Inventory-2. The squad recorded 2 wins (home) and 2 losses (away) over the study period. Calculated effect sizes (ESs) showed higher pregame cortisol- (C) and testosterone- (T) difference values before all games than on a baseline control day (ES 0.7-1.5). Similar findings were observed for cognitive and somatic anxiety. Small between-venues C differences were observed in starting XV players (ES 0.2-0.25). Conversely, lower home T- (ES 0.95) and higher away C- (ES 0.6) difference values were observed in nonstarters. Lower T-difference values were apparent in nonstarters (vs starting XV) before home games, providing evidence of a between-groups effect (ES 0.92). Findings show an anticipatory rise in psychophysiological variables before competition. Knowledge of starting status appears a moderating factor in the magnitude of player endocrine response between home and away games.

Tabulation of comet observations.

NASA Astrophysics Data System (ADS)

1993-01-01

Concerning comets: 1973 XII Kohoutek, 1975 IX Kobayashi-Berger-Milon, 1976 VI West, 1976 XI P/d'Arrest, 1977 XIV Kohler, 1979 X Bradfield, 1980 X P/Stephan-Oterma, 1980 XV Bradfield, 1981 II Panther, 1982 VI Austin, 1983 V Sugano-Saigusa-Fujikawa, 1983 VII IRAS-Araki-Alcock, 1983 XIII P/Kopff, 1984 XIII Austin, 1984 XXIII Levy-Rudenko, 1985 XIII P/Giacobini-Zinner, 1985 XVII Hartley-Good, 1985 XIX Thiele, 1986 I P/Boethin, 1986 III P/Halley, 1986 XVIII Terasako, 1987 II Sorrells, 1987 III Nishikawa-Takamizawa-Tago, 1987 X P/Grigg-Skjellerup, 1987 XXIII Rudenko, 1987 XXIX Bradfield, 1987 XXXII McNaught, 1987 XXXIII P/Borrelly, 1988 IV Furuyama, 1988 V Liller, 1988 XIV P/Tempel 2, 1988 XV Machholz, 1988 XX Yanaka, 1988 XXIV Yanaka, 1989 X P/Brorsen-Metcalf, 1989 XV P/Schwassmann-Wachmann 1, 1989 XIX Okazaki-Levy-Rudenko, 1989 XXI Helin-Roman-Alu, 1989 XXII Aarseth-Brewington, 1990 III Černis-Kiuchi-Nakamura, 1990 VI Skorichenko-George, 1990 VIII P/Schwassmann-Wachmann 3, 1990 IX P/Peters-Hartley, 1990 X P/Wild 4, 1990 XIV P/Honda Mrkos-Pajdušáková, 1990 XVII Tsuchiya-Kiuchi, 1990 XXI P/Encke, 1990 XXVI Arai, 1991 XI P/Levy, 1991 XV P/Hartley 2, 1991 XVI P/Wirtanen, 1991 XVII P/Arend-Rigaux, 1991 XXI P/Faye, 1991 XXIII P/Shoemaker 1, 1991 XXIV Shoemaker-Levy, 1991l Helin-Lawrence, 1991ο P/Chernykh, 1991r Helin-Alu, 1991a1 Shoemaker-Levy, 1991g1 Zanotta-Brewington, 1991h1 Mueller, 1912d Tanaka-Machholz, 1992f P/Shoemaker-Levy 8, 1992k Machholz, 1992l P/Giclas, 1992p P/Brewington, 1992q Helin-Lawrence, 1992s P/Ciffréo, 1992t P/Swift-Tuttle, 1992u P/Väisälä, 1992x P/Schaumasse, 1992y Shoemaker, 1992a1 Ohshita, 1993a Mueller, P/Smirnova-Chernykh.

MS2/TOF and LC-MS/TOF studies on toremifene to characterize its forced degradation products.

PubMed

Bansal, Gulshan; Maddhesia, Pawan K; Bansal, Yogita

2011-12-21

The present study was designed to characterize the possible degradation products of toremifene under varied conditions as prescribed by ICH guidelines Q1A(R2). The forced degradation studies were conducted on toremifene citrate under the conditions of hydrolysis (acidic, basic and neutral), photolysis, oxidation and dry heat. The drug was found unstable to photolysis and hydrolysis in water and acidic media but stable to alkaline hydrolysis, peroxide oxidation and thermal degradation. In total fifteen degradation products (I-XV) were formed, which were resolved from each other and the drug on a C-18 column employing an isocratic elution method. A complete mass fragmentation pattern of the drug was established with the help of LC/ESI-MS/TOF to assist characterization of the degradation products. Of the fifteen products, six products III, IV, VII, VIII, XIV and XV were detected in LC-MS. The molecular masses of III, IV, VII and VIII were found to be the same i.e., 387, while those of XIV and XV were 389 and 403, respectively. Structures of these products were elucidated through comparison of their mass fragmentation patterns with the drug, which were proposed on the basis of accurate masses of the parent and fragment ions. These were characterized as (Z)-2-(2-(dimethylamino)ethyl)-4-(4-hydroxy-1,2-diphenylbut-1-enyl)phenol (III), (E)-2-(2-(dimethylamino)ethyl)-4-(4-hydroxy-1,2-diphenylbut-1-enyl)phenol (IV), (E)-4-(4-(2-(dimethylamino)ethoxy)phenyl)-3,4-diphenylbut-3-en-1-ol (VII), (Z)-4-(4-(2-(dimethylamino)ethoxy)phenyl)-3,4-diphenylbut-3-en-1-ol (VIII), 2-(4-(10-(2-chloroethyl)phenanthren-9-yl)phenoxy)-N-methylethanamine (XIV), and 2-(4-(10-(2-chloroethyl)phenanthren-9-yl)phenoxy)-N,N-dimethylethanamine (XV). Finally, a most plausible mechanistic explanation for degradation of the drug in different chemical environments is also proposed. The results of the study disclose six new degradation related impurities of the drug.

Use of generalized population ratios to obtain Fe XV line intensities and linewidths at high electron densities

NASA Technical Reports Server (NTRS)

Kastner, S. O.; Bhatia, A. K.

1980-01-01

A generalized method for obtaining individual level population ratios is used to obtain relative intensities of extreme ultraviolet Fe XV emission lines in the range 284-500 A, which are density dependent for electron densities in the tokamak regime or higher. Four lines in particular are found to attain quite high intensities in the high-density limit. The same calculation provides inelastic contributions to linewidths. The method connects level populations and level widths through total probabilities t(ij), related to 'taboo' probabilities of Markov chain theory. The t(ij) are here evaluated for a real atomic system, being therefore of potential interest to random-walk theorists who have been limited to idealized systems characterized by simplified transition schemes.

Use of generalized population ratios to obtain Fe XV line intensities and linewidths at high electron densities

NASA Astrophysics Data System (ADS)

Kastner, S. O.; Bhatia, A. K.

1980-08-01

A generalized method for obtaining individual level population ratios is used to obtain relative intensities of extreme ultraviolet Fe XV emission lines in the range 284-500 A, which are density dependent for electron densities in the tokamak regime or higher. Four lines in particular are found to attain quite high intensities in the high-density limit. The same calculation provides inelastic contributions to linewidths. The method connects level populations and level widths through total probabilities t(ij), related to 'taboo' probabilities of Markov chain theory. The t(ij) are here evaluated for a real atomic system, being therefore of potential interest to random-walk theorists who have been limited to idealized systems characterized by simplified transition schemes.

FERM proteins in animal morphogenesis.

PubMed

Tepass, Ulrich

2009-08-01

Proteins containing a FERM domain are ubiquitous components of the cytocortex of animal cells where they are engaged in structural, transport, and signaling functions. Recent years have seen a wealth of genetic studies in model organisms that explore FERM protein function in development and tissue organization. In addition, mutations in several FERM protein-encoding genes have been associated with human diseases. This review will provide a brief overview of the FERM domain structure and the FERM protein superfamily and then discuss recent advances in our understanding of the mechanism of function and developmental requirement of several FERM proteins including Moesin, Myosin-VIIA, Myosin-XV, Coracle/Band4.1 as well as Yurt and its vertebrate homologs Mosaic Eyes and EPB41L5/YMO1/Limulus.

10 CFR 2.1003 - Availability of material.

Code of Federal Regulations, 2010 CFR

2010-01-01

...; (xiv) Graphs, plots, strip charts, sketches; (xv) Descriptive material related to the information..., such as the Site Characterization Analysis, and the Safety Evaluation Report, shall be made available...

National Dam Inspection Program. Lake Housatonic Dam and Dike (CT 00026 and CT 01714). Connecticut Coastal Basin, Housatonic River, Derby-Shelton, Connecticut. Phase I Inspection Report.

DTIC Science & Technology

1981-08-01

elevation 47.5) is 394,000 cfs. , "C. Elevations (feet above NGVD) (1) Streambed at toe of dam (approximate) 0.0 (2) Botton of cutoff Unknown (3) Maximum...diameter. Condition of Discharge Channel Canal appears to be silted in. Two parking lots have been constructed in the canal, but culverts were...Checked ~ ~ t Date ’ 4J~ aw a7W 4r Śewww APajd1 ~/v’* ccuot AM 4W r1.0W OWj M49AA a 44r0 OA, Te J~xOOr 0. SS40Wl llhwWl 4/ toS~ Al fA ~w~’~y’ XV0

32 CFR 724.803 - The decisional document.

Code of Federal Regulations, 2014 CFR

2014-07-01

...) Educational level; (xiv) Aptitude test scores; (xv) Incidents of punishment pursuant to Article 15, Uniform Code of Military Justice (including nature and date (YYMMDD) of offense or punishment); (xvi...

32 CFR 724.803 - The decisional document.

Code of Federal Regulations, 2012 CFR

2012-07-01

...) Educational level; (xiv) Aptitude test scores; (xv) Incidents of punishment pursuant to Article 15, Uniform Code of Military Justice (including nature and date (YYMMDD) of offense or punishment); (xvi...

32 CFR 724.803 - The decisional document.

Code of Federal Regulations, 2013 CFR

2013-07-01

...) Educational level; (xiv) Aptitude test scores; (xv) Incidents of punishment pursuant to Article 15, Uniform Code of Military Justice (including nature and date (YYMMDD) of offense or punishment); (xvi...

32 CFR 724.803 - The decisional document.

Code of Federal Regulations, 2011 CFR

2011-07-01

...) Educational level; (xiv) Aptitude test scores; (xv) Incidents of punishment pursuant to Article 15, Uniform Code of Military Justice (including nature and date (YYMMDD) of offense or punishment); (xvi...

Advanced AFCS developments on the XV-15 tilt rotor research aircraft. [Automatic Flight Control System

NASA Technical Reports Server (NTRS)

Churchill, G. B.; Gerdes, R. M.

1984-01-01

The design criteria and control and handling qualities of the Automatic Flight Control System (AFCS), developed in the framework of the XV-15 tilt-rotor research aircraft, are evaluated, differentiating between the stability and control criteria. A technically aggressive SCAS control law was implemented, demonstrating that significant benefits accrue when stability criteria are separated from design criteria; the design analyses for application of the control law are presented, and the limit bandwidth for stabilization in hovering flight is shown to be defined by rotor or control lag functions. Flight tests of the aircraft resulted in a rating of 3 on the Cooper-Harper scale; a possibility of achieving a rating of 2 is expected if the system is applied to the yaw and heave control modes.

Lessons from Popocatepetl Volcano (Mexico): Ancient Settlement Buried by Lavas, Mudflows, and Air-Fall Deposits

NASA Technical Reports Server (NTRS)

Delgado, H.; Panfil, M.; Gonzalez, E. A.; Coyoacan, C. U.; Urangaela, G.; Plunket, P.; Gardner, T.; Abrams, M.

1994-01-01

Popocatepetl volcano is 5452 m in altitude and capped by glaciers with a long Late Pleistocene-Holocene history. Volcanic activity has been intense during the last 10 000 years. Therefore, the valleys at the NE foothills of the volcano, covered by air-fall ejecta and drained by the runoff of the glaciers, became very attractive to ancient inhabitants of the Xalizintla Valley (XV) west of Puebla City, because of fertility of soils. The XV was occupied by humans about 2000 years ago who witnessed five events related to volcanic activity related to Popo. These events, described in this paper, are being taken into account for volcanic risk evaluation since several towns with a population of more than 23 000 people reoccupied again the Xalizintla Valley.

40 CFR 60.36e - Inspection guidelines.

Code of Federal Regulations, 2011 CFR

2011-07-01

...; (v) Inspect HMIWI door and door gaskets for proper sealing; (vi) Inspect motors for proper operation... applicable; (xiv) Inspect waste heat boiler systems to ensure proper operation, if applicable; (xv) Inspect...

76 FR 40132 - Unified Agenda of Federal Regulatory and Deregulatory Actions

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-07

... Murphy, General Attorney, Office of General Counsel. Dated: February 25, 2011. Sloan Farrell, Acting... Vol. 76 Thursday, No. 130 July 7, 2011 Part XV General Services Administration Semiannual...; [[Page 40132

19 CFR 122.183 - Denial of access.

Code of Federal Regulations, 2014 CFR

2014-04-01

...) Destruction of an aircraft or aircraft facility (18 U.S.C. 32); (xiii) Murder; (xiv) Assault with intent to murder; (xv) Espionage; (xvi) Sedition; (xvii) Kidnapping or hostage taking; (xviii) Treason; (xix) Rape...

19 CFR 122.183 - Denial of access.

Code of Federal Regulations, 2013 CFR

2013-04-01

...) Destruction of an aircraft or aircraft facility (18 U.S.C. 32); (xiii) Murder; (xiv) Assault with intent to murder; (xv) Espionage; (xvi) Sedition; (xvii) Kidnapping or hostage taking; (xviii) Treason; (xix) Rape...

ARC-1960-AC-26438

NASA Image and Video Library

1960-03-01

BELL XV-3 (AF54-148) Convertiplane (experimental tilt rotor) IN FLIGHT Note: Used in publication in Flight Research at Ames; 57 Years of Development and Validation of Aeronautical Technology NASA SP-1998-3300 fig. 121

Ground vibration test of the XV-15 Tiltrotor Research Aircraft and pretest predictions

NASA Technical Reports Server (NTRS)

Studebaker, Karen; Abrego, Anita

1994-01-01

The first comprehensive ground vibration survey was performed on the XV-15 Tiltrotor Research Aircraft to measure the vibration modes of the airframe and to provide data critical for determining whirl flutter stability margins. The aircraft was suspended by the wings with bungee cords and cables. A NASTRAN finite element model was used in the design of the suspension system to minimize its interference with the wing modes. The primary objective of the test was to measure the dynamic characteristics of the wings and pylons for aeroelastic stability analysis. In addition, over 130 accelerometers were placed on the airframe to characterize the fuselage, wing, and tail vibration. Pretest predictions were made with the NASTRAN model as well as correlations with the test data. The results showed that the suspension system provided the isolation necessary for modal measurements.

Atomic Data and Spectral Line Intensities for Ni XV

NASA Technical Reports Server (NTRS)

Landi, E.; Bhatia, A. K.

2011-01-01

Electron impact collision strengths, energy levels, oscillator strengths, and spontaneous radiative decay rates are calculated for Ni XV.Weinclude in the calculations the 9 lowest configurations, corresponding to 126 fine structure levels: 3s23p2, 3s3p3, 3s23p3d, 3p4, 3s3p23d, and 3s2 3p4l with l =, s, p, d, f. Collision strengths are calculated at five incident energies for all transitions: 7.8, 18.5, 33.5, 53.5, and 80.2 Ry above the threshold of each transition. An additional energy, very close to the transition threshold, has been added, whose value is between 0.004 and 0.28 Ry depending on the levels involved. Calculations have been carried out using the Flexible Atomic Code and the distorted-wave approximation. Excitation rate coefficients are calculated as a function of electron temperature by assuming a Maxwellian electron velocity distribution. Using the excitation rate coefficients and the radiative transition rates calculated in the present work, statistical equilibrium equations for level populations are solved at electron densities covering the 10(exp 8)-10(exp 14)/cu cm range and at an electron temperature of log T(sub e)(K) = 6.4, corresponding to the maximum abundance of Ni XV. Spectral line intensities are calculated, and their diagnostic relevance is discussed. This dataset will be made available in the next version of the CHIANTI database.

The History of the XV-15 Tilt Rotor Research Aircraft: From Concept to Flight

NASA Technical Reports Server (NTRS)

Maisel, Martin D.; Giulianetti, Demo J.; Dugan, Daniel C.

2000-01-01

This monograph is a testament to the efforts of many people overcoming multiple technical challenges encountered while developing the XV-15 tilt rotor research aircraft. The Ames involvement with the tilt rotor aircraft began in 1957 with investigations of the performance and dynamic behavior of the Bell XV-3 tilt rotor aircraft. At that time, Ames Research Center was known as the Ames Aeronautical Laboratory of the National Advisory Committee for Aeronautics (NACA). As we approach the new millennium, and after more than 40 years of effort and the successful completion of our initial goals, it is appropriate to reflect on the technical accomplishments and consider the future applications of this unique aircraft class, the tilt rotor. The talented engineers, technicians, managers, and leaders at Ames have worked hard with their counterparts in the U.S. rotorcraft industry to overcome technology barriers and to make the military and civil tilt rotor aircraft safer, environmentally acceptable, and more efficient. The tilt rotor aircraft combines the advantages of vertical takeoff and landing capabilities, inherent to the helicopter, with the forward speed and range of a fixed wing turboprop airplane. Our studies have shown that this new vehicle type can provide the aviation transportation industry with the flexibility for highspeed, long-range flight, coupled with runway-independent operations, thus having a significant potential to relieve airport congestion. We see the tilt rotor aircraft as an element of the solution to this growing air transport problem.

The use of normoxic polymer gel for measuring dose distributions of 1, 4 and 30 mm cones

NASA Astrophysics Data System (ADS)

Lee, C. C.; Wu, J. F.; Chang, K. P.; Chu, C. H.; Wey, S. P.; Liu, H. L.; Tung, C. J.; Wu, S. W.; Chao, T. C.

2014-11-01

This study demonstrates the use of normoxic polymer gel for measuring dose distributions of small fields that lack lateral electronic equilibrium. Two different types of normoxic polymer gel, MAGAT and PAGAT, are studied in a larger field (10 cm×10 cm) and 1, 4 and 30 mm cones to obtain cone factors, dose profiles and percentage depth doses. These results were then compared to KODAK XV film measurements and BEAMnrc Monte Carlo simulations. The results show that the sensitivity of PAGAT gel is 0.090±0.074 s-1 Gy-1, which may not be suitable for small-field dosimetry with a 0.3 mm resolution scanned using a 3 T MR imager in a dose range lower than 2.5 Gy. There are good agreements between cone factors estimated using KODAK XV film and MAGAT gel. In a dose profile comparison, good dose agreement among MAGAT gel, XV film and MC simulation can be seen in the central area for a 30 mm cone. In penumbra, the distance to agreement is at most 1.2 mm (4 pixel), and less than 0.3 mm (1 pixel) for 4 and 1 mm cones. In a percentage depth dose comparison, there were good agreements between MAGAT and MC up to a depth of 8 cm. Possible factors for gel uncertainty such as MRI magnetic field inhomogeneity and temperature were also investigated.

Glycogen Synthesis in Glycogenin 1-Deficient Patients: A Role for Glycogenin 2 in Muscle.

PubMed

Krag, Thomas O; Ruiz-Ruiz, Cristina; Vissing, John

2017-08-01

Glycogen storage disease (GSD) type XV is a rare disease caused by mutations in the GYG1 gene that codes for the core molecule of muscle glycogen, glycogenin 1. Nonetheless, glycogen is present in muscles of glycogenin 1-deficient patients, suggesting an alternative for glycogen buildup. A likely candidate is glycogenin 2, an isoform expressed in the liver and heart but not in healthy skeletal muscle. We wanted to investigate the formation of glycogen and changes in glycogen metabolism in patients with GSD type XV. Two patients with mutations in the GYG1 gene were investigated for histopathology, ultrastructure, and expression of proteins involved in glycogen synthesis and metabolism. Apart from occurrence of polyglucosan (PG) bodies in few fibers, glycogen appeared normal in most cells, and the concentration was normal in patients with GSD type XV. We found that glycogenin 1 was absent, but glycogenin 2 was present in the patients, whereas the opposite was the case in healthy controls. Electron microscopy revealed that glycogen was present between and not inside myofibrils in type II fibers, compromising the ultrastructure of these fibers, and only type I fibers contained PG bodies. We also found significant changes to the expression levels of several enzymes directly involved in glycogen and glucose metabolism. To our knowledge, this is the first report demonstrating expression of glycogenin 2 in glycogenin 1-deficient patients, suggesting that glycogenin 2 rescues the formation of glycogen in patients with glycogenin 1 deficiency. Copyright © 2017 Endocrine Society

Recent progress in VSTOL technology

NASA Technical Reports Server (NTRS)

Roberts, L.; Deckert, W. R.

1982-01-01

Progress in vertical and short takeoff and landing (V/STOL) aircraft technology, in particular, during the 1970 to 1980 period at Ames Research Center is discussed. Although only two kinds of V/STOL aircraft (the helicopter and the British direct lift Harrier) have achieved operational maturity, understanding of the technology has vastly improved during this 10 year period. To pursue an aggressive R and D program at a reasonable cost, it was decided to conduct extensive large scale testing in wind tunnel and flight simulation facilities, to develop low cost research aircraft using modified airframes or engines, and to involve other agencies and industry contractors in joint technical and funding arrangements. The STOL investigations include exploring STOL performance using the rotating cylinder flap concept, the augmentor wing, upon initiation of the Quiet Short Haul Research Aircraft program, the upper surface blown flap concept. The VTOL investigations were conducted using a tilt rotor aircraft, resulting in the XV-15 tilt rotor research aircraft. Direct jet lift is now being considered for application to future supersonic fighter aircraft.

ARC-1964-AC-32744

NASA Image and Video Library

1964-06-19

XV-5A airplane installed in 40x80ft Subsonic Wind Tunnel at NASA Ames Research Center with Tom Mills. The propulsive lift system was tested to determine power-on performance characteristics in preparation for flight tests.

ARC-1901-AC-32746

NASA Image and Video Library

1964-06-19

XV-5A airplane installed in 40x80ft Subsonic Wind Tunnel at NASA Ames Research Center with Tom Mills. The propulsive lift system was tested to determine power-on performance characteristics in preparation for flight tests.

12 CFR 219.21 - Authority, purpose and scope.

Code of Federal Regulations, 2010 CFR

2010-01-01

... amended by the Annunzio-Wylie Anti-Money Laundering Act of 1992 (Pub. L. 102-550, Title XV; 106 Stat. 3672... recordkeeping and reporting requirements will assist in the prosecution of money laundering activities and are...

ARC-1985-AC85-0186-2

NASA Image and Video Library

1985-03-12

XV-15 Tilt Rotor (NASA-703) in flight at Ames Research Center Note: Used in publication in Flight Research at Ames; 57 Years of Development and Validation of Aeronautical Technology NASA SP-1998-3300 fig 122

33 CFR 277.8 - Procedures for apportionment of costs.

Code of Federal Regulations, 2014 CFR

2014-07-01

... betterments. The cost of such items will be borne by the bridge owner. (i) Access roads. (ii) Concrete or... paint, and exotic paint systems. (xiv) Brass pipe and high alloy steel conduits. (xv) Floodlights and...

26 CFR 521.115 - Credit against United States tax liability for Danish tax.

Code of Federal Regulations, 2010 CFR

2010-04-01

... (CONTINUED) REGULATIONS UNDER TAX CONVENTIONS DENMARK General Income Tax Taxation of Nonresident Aliens Who... liability for Danish tax. For the purpose of avoidance of double taxation, Article XV provides that, on the...

Introduction: Invertebrate Neuropeptides XV

USDA-ARS?s Scientific Manuscript database

This publication represents an introduction to the fifteenth in a series of special issues of the Peptides journal dedicated to invertebrate neuropeptides. The issue addresses a number of aspects of invertebrate neuropeptide research including identification of novel invertebrate neuropeptide seque...

26 CFR 521.115 - Credit against United States tax liability for Danish tax.

Code of Federal Regulations, 2011 CFR

2011-04-01

... (CONTINUED) REGULATIONS UNDER TAX CONVENTIONS DENMARK General Income Tax Taxation of Nonresident Aliens Who... liability for Danish tax. For the purpose of avoidance of double taxation, Article XV provides that, on the...

High-order continuum kinetic method for modeling plasma dynamics in phase space

DOE PAGES

Vogman, G. V.; Colella, P.; Shumlak, U.

2014-12-15

Continuum methods offer a high-fidelity means of simulating plasma kinetics. While computationally intensive, these methods are advantageous because they can be cast in conservation-law form, are not susceptible to noise, and can be implemented using high-order numerical methods. Advances in continuum method capabilities for modeling kinetic phenomena in plasmas require the development of validation tools in higher dimensional phase space and an ability to handle non-cartesian geometries. To that end, a new benchmark for validating Vlasov-Poisson simulations in 3D (x,v x,v y) is presented. The benchmark is based on the Dory-Guest-Harris instability and is successfully used to validate a continuummore » finite volume algorithm. To address challenges associated with non-cartesian geometries, unique features of cylindrical phase space coordinates are described. Preliminary results of continuum kinetic simulations in 4D (r,z,v r,v z) phase space are presented.« less

Some far-field acoustics characteristics of the XV-15 tilt-rotor aircraft

NASA Technical Reports Server (NTRS)

Golub, Robert A.; Conner, David A.; Becker, Lawrence E.; Rutledge, C. Kendall; Smith, Rita A.

1990-01-01

Far-field acoustics tests have been conducted on an instrumented XV-15 tilt-rotor aircraft. The purpose of these acoustic measurements was to create an encompassing, high confidence (90 percent), and accurate (-1.4/ +1/8 dB theoretical confidence interval) far-field acoustics data base to validate ROTONET and other current rotorcraft noise prediction computer codes. This paper describes the flight techniques used, with emphasis on the care taken to obtain high-quality far-field acoustic data. The quality and extensiveness of the data base collected are shown by presentation of ground acoustic contours for level flyovers for the airplane flight mode and for several forward velocities and nacelle tilts for the transition mode and helicopter flight mode. Acoustic pressure time-histories and fully analyzed ensemble averaged far-field data results (spectra) are shown for each of the ground contour cases.

Performance and safety aspects of the XV-15 tilt rotor research aircraft

NASA Technical Reports Server (NTRS)

Wernicke, K. G.

1977-01-01

Aircraft performance is presented illustrating the flexibility and capability of the XV-15 to conduct its planned proof-of-concept flight research in the areas of dynamics, stability and control, and aerodynamics. Additionally, the aircraft will demonstrate mission-type performance typical of future operational aircraft. The aircraft design is described and discussed with emphasis on the safety and fail-operate features of the aircraft and its systems. Two or more levels of redundancy are provided in the dc and ac electrical systems, hydraulics, conversion, flaps, landing gear extension, SCAS, and force-feel. RPM is maintained by a hydro-electrical blade pitch governor that consists of a primary and standby governor with a cockpit wheel control for manual backup. The two engines are interconnected for operation on a single engine. In the event of total loss of power, the aircraft can enter autorotation starting from the airplane as well as the helicopter mode of flight.

A search for the millimetre lines of HCN in Comets Wilson 1987 VII and Machholz 1988 XV

NASA Astrophysics Data System (ADS)

Crouvisier, J.; Despois, D.; Bockelee-Morvan, D.; Gerard, E.; Paubert, G.; Johansson, L. E. B.; Ekelund, L.; Winnberg, A.; Ge, W.; Irvine, W. M.; Kinzel, W. M.; Schloerb, F. P.

1990-08-01

The J(1-0) lines of HCN at 89 GHz were searched for in Comet Wilson 1987 VII, with the FCRAO, the SEST and the IRAM radio telescopes between February and June 1987. There was no firm detection, but significant upper limits were obtained, which put severe constraints on the HCN production rate in that comet. A direct comparison with the observations of P/Halley suggests that the HCN abundance relative to water might be smaller in Comet Wilson by at least a factor of two. The J(1-0) and J(3-2) lines of HCN at 89 and 266 GHz were searched for in Comet Machholz 1988 XV when it was close to perihelion at 0.17 AU from the sun. There was no detection. At that moment, the comet was probably no longer active.

Effect of crossflow velocity on VTOL lift fan blade passing frequency noise generation

NASA Technical Reports Server (NTRS)

Stimpert, D. L.

1973-01-01

Analysis of noise measurements taken during tests of a remote lift fan wing installation, a V/STOL model transport with both lift and lift/cruise fans, and XV5B research aircraft flight tests has indicated a definite increase in pure tone sound pressure level due to crossflow over the face of the life fans. The fan-in-wing and V/STOL model transport tests were conducted in the NASA Ames 40 ft. by 80 ft. wing tunnel and the XV5B flight tests at Moffett Field. Increases up to 10 db were observed for the lift fan installation tested at crossflow to fan tip velocity ratios up to 0.25. Cruise fan noise levels were found to be unaffected by the external flow. The noise level increase was shown to be related to an increase in fan distortion levels.

A Comparison of Measured and Predicted XV-15 Tiltrotor Surface Acoustic Pressures

NASA Technical Reports Server (NTRS)

Lyle, Karen H.; Burley, Casey L.; Prichard, Devon S.

1997-01-01

Predicted XV-15 exterior surface acoustic pressures are compared with previously published experimental data. Surface acoustic pressure transducers were concentrated near the tip-path-plane of the rotor in airplane mode. The comparison emphasized cruise conditions which are of interest for tiltrotor interior noise - level flight for speeds ranging from 72 m/s to 113 m/s. The predictions were produced by components of the NASA Langley Tiltrotor Aeroacoustic Code (TRAC) system of computer codes. Comparisons between measurements and predictions were made in both the time and frequency domains, as well as overall sound pressure levels. In general, the predictions replicated the measured data well. Discrepancies between measurements and predictions were noted. Some of the discrepancies were due to poor correlation of the measured data with the rotor tach signal. In other cases limitations of the predictive methodology have been indicated.

DNA sequence analysis of a 10 624 bp fragment of the left arm of chromosome XV from Saccharomyces cerevisiae reveals a RNA binding protein, a mitochondrial protein, two ribosomal proteins and two new open reading frames.

PubMed

Lafuente, M J; Gamo, F J; Gancedo, C

1996-09-01

We have determined the sequence of a 10624 bp DNA segment located in the left arm of chromosome XV of Saccharomyces cerevisiae. The sequence contains eight open reading frames (ORFs) longer than 100 amino acids. Two of them do not present significant homology with sequences found in the databases. The product of ORF o0553 is identical to the protein encoded by the gene SMF1. Internal to it there is another ORF, o0555 that is apparently expressed. The proteins encoded by ORFs o0559 and o0565 are identical to ribosomal proteins S19.e and L18 respectively. ORF o0550 encodes a protein with an RNA binding signature including RNP motifs and stretches rich in asparagine, glutamine and arginine.

Analysis of the DNA sequence of a 15,500 bp fragment near the left telomere of chromosome XV from Saccharomyces cerevisiae reveals a putative sugar transporter, a carboxypeptidase homologue and two new open reading frames.

PubMed

Gamo, F J; Lafuente, M J; Casamayor, A; Ariño, J; Aldea, M; Casas, C; Herrero, E; Gancedo, C

1996-06-15

We report the sequence of a 15.5 kb DNA segment located near the left telomere of chromosome XV of Saccharomyces cerevisiae. The sequence contains nine open reading frames (ORFs) longer than 300 bp. Three of them are internal to other ones. One corresponds to the gene LGT3 that encodes a putative sugar transporter. Three adjacent ORFs were separated by two stop codons in frame. These ORFs presented homology with the gene CPS1 that encodes carboxypeptidase S. The stop codons were not found in the same sequence derived from another yeast strain. Two other ORFs without significant homology in databases were also found. One of them, O0420, is very rich in serine and threonine and presents a series of repeated or similar amino acid stretches along the sequence.

Lithium-ion diffusion mechanisms in the battery anode material Li(1+x)V(1-x)O₂.

PubMed

Panchmatia, Pooja M; Armstrong, A Robert; Bruce, Peter G; Islam, M Saiful

2014-10-21

Layered Li(1+x)V(1-x)O2 has attracted recent interest as a potential low voltage and high energy density anode material for lithium-ion batteries. A greater understanding of the lithium-ion transport mechanisms is important in optimising such oxide anodes. Here, stoichiometric LiVO2 and Li-rich Li1.07V0.93O2 are investigated using atomistic modelling techniques. Lithium-ion migration is not found in LiVO2, which has also previously shown to be resistant to lithium intercalation. Molecular dynamics simulations of lithiated non-stoichiometric Li(1.07+y)V0.93O2 suggest cooperative interstitial Li(+) diffusion with favourable migration barriers and diffusion coefficients (D(Li)), which are facilitated by the presence of lithium in the transition metal layers; such transport behaviour is important for high rate performance as a battery anode.

75 FR 27708 - Stanford University Habitat Conservation Plan

Federal Register 2010, 2011, 2012, 2013, 2014

2010-05-18

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration DEPARTMENT OF THE INTERIOR Fish and Wildlife Service RIN 0648-XV36 Stanford University Habitat Conservation Plan AGENCIES... University Habitat Conservation Plan (Plan), the Draft Environmental Impact Statement (DEIS) for...

The ecology of flows and drift wave turbulence in CSDX: A model

NASA Astrophysics Data System (ADS)

Hajjar, R. J.; Diamond, P. H.; Tynan, G. R.

2018-02-01

This paper describes the ecology of drift wave turbulence and mean flows in the coupled drift-ion acoustic wave plasma of a CSDX linear device. A 1D reduced model that studies the spatiotemporal evolution of plasma mean density n ¯ , and mean flows v¯ y and v¯ z , in addition to fluctuation intensity ε, is presented. Here, ε= is the conserved energy field. The model uses a mixing length lmix inversely proportional to both axial and azimuthal flow shear. This form of lmix closes the loop on total energy. The model self-consistently describes variations in plasma profiles, including mean flows and turbulent stresses. It investigates the energy exchange between the fluctuation intensity and mean profiles via particle flux and Reynolds stresses and . Acoustic coupling breaks parallel symmetry and generates a parallel residual stress Πxzr e s . The model uses a set of equations to explain the acceleration of v¯ y and v¯ z via Πxyr e s∝∇n ¯ and Πxyr e s∝∇n ¯ . Flow dynamics in the parallel direction are related to those in the perpendicular direction through an empirical coupling constant σVT. This constant measures the degree of symmetry breaking in the correlator and determines the efficiency of ∇n ¯ in driving v¯ z . The model also establishes a relation between ∇v¯ y and ∇v¯ z , via the ratio of the stresses Πxyr e s and Πxzr e s . When parallel to perpendicular flow coupling is weak, axial Reynolds power Pxz R e=-∇v¯ z is less than the azimuthal Reynolds power Pxy R e=-∇v¯ y . The model is then reduced to a 2-field predator/prey model where v¯ z is parasitic to the system and fluctuations evolve self-consistently. Finally, turbulent diffusion in CSDX follows the scaling: DCSDX=DBρ⋆0.6 , where DB is the Bohm diffusion coefficient and ρ⋆ is the ion gyroradius normalized to the density gradient |∇n ¯ /n ¯ |-1 .

Comparison of three assembly strategies for a heterozygous seedless grapevine genome assembly.

PubMed

Patel, Sagar; Lu, Zhixiu; Jin, Xiaozhu; Swaminathan, Padmapriya; Zeng, Erliang; Fennell, Anne Y

2018-01-17

De novo heterozygous assembly is an ongoing challenge requiring improved assembly approaches. In this study, three strategies were used to develop de novo Vitis vinifera 'Sultanina' genome assemblies for comparison with the inbred V. vinifera (PN40024 12X.v2) reference genome and a published Sultanina ALLPATHS-LG assembly (AP). The strategies were: 1) a default PLATANUS assembly (PLAT_d) for direct comparison with AP assembly, 2) an iterative merging strategy using METASSEMBLER to combine PLAT_d and AP assemblies (MERGE) and 3) PLATANUS parameter modifications plus GapCloser (PLAT*_GC). The three new assemblies were greater in size than the AP assembly. PLAT*_GC had the greatest number of scaffolds aligning with a minimum of 95% identity and ≥1000 bp alignment length to V. vinifera (PN40024 12X.v2) reference genome. SNP analysis also identified additional high quality SNPs. A greater number of sequence reads mapped back with zero-mismatch to the PLAT_d, MERGE, and PLAT*_GC (>94%) than was found in the AP assembly (87%) indicating a greater fidelity to the original sequence data in the new assemblies than in AP assembly. A de novo gene prediction conducted using seedless RNA-seq data predicted > 30,000 coding sequences for the three new de novo assemblies, with the greatest number (30,544) in PLAT*_GC and only 26,515 for the AP assembly. Transcription factor analysis indicated good family coverage, but some genes found in the VCOST.v3 annotation were not identified in any of the de novo assemblies, particularly some from  the MYB and ERF families. The PLAT_d and PLAT*_GC had a greater number of synteny blocks with the V. vinifera (PN40024 12X.v2) reference genome than AP or MERGE. PLAT*_GC provided the most contiguous assembly with only 1.2% scaffold N, in contrast to AP (10.7% N), PLAT_d (6.6% N) and Merge (6.4% N). A PLAT*_GC pseudo-chromosome assembly with chromosome alignment to the reference genome V. vinifera, (PN40024 12X.v2) provides new information for use in seedless grape genetic mapping studies. An annotated de novo gene prediction for the PLAT*_GC assembly, aligned with VitisNet pathways provides new seedless grapevine specific transcriptomic resource that has excellent fidelity with the seedless short read sequence data.

An Analysis of Internal Controls for DoD Contract Management

DTIC Science & Technology

2015-12-01

61 xiv THIS PAGE INTENTIONALLY LEFT BLANK xv LIST OF ACRONYMS AND ABBREVIATIONS BCA Business Case Analysis BPA ...indefinite quantity (IDIQ) and blanket purchase agreements ( BPA ), which can provide the government flexibility on ordering recurring requirements. Figure 5

V/STOL tilt rotor research aircraft. Volume 1: General information, revision C

NASA Technical Reports Server (NTRS)

Kimbell, M.; Whitener, A.

1980-01-01

The configuration, operation and maintenance requirements for the contractor-furnished portion of the XV-15 research instrumentation and data acquisition system are defined. Descriptions of systems operation, maintenance and checkout procedures, and cable designations are given.

75 FR 19363 - Endangered Species; File No. 14754

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-14

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-XV76 Endangered Species; File No. 14754 AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Issuance of permit. SUMMARY: Notice is hereby given that Isaac Wirgin...

25 CFR 36.42 - Standard XV-Counseling services.

Code of Federal Regulations, 2014 CFR

2014-04-01

... objective assessment of student academic performance. Required formal tests shall be administered annually... standards, schools may use the state mandated academic achievement tests and accompanying requirements. These formal tests and their subtest contents, as well as the test-related procedures, shall include...

25 CFR 36.42 - Standard XV-Counseling services.

Code of Federal Regulations, 2012 CFR

2012-04-01

... objective assessment of student academic performance. Required formal tests shall be administered annually... standards, schools may use the state mandated academic achievement tests and accompanying requirements. These formal tests and their subtest contents, as well as the test-related procedures, shall include...

25 CFR 36.42 - Standard XV-Counseling services.

Code of Federal Regulations, 2013 CFR

2013-04-01

... objective assessment of student academic performance. Required formal tests shall be administered annually... standards, schools may use the state mandated academic achievement tests and accompanying requirements. These formal tests and their subtest contents, as well as the test-related procedures, shall include...

25 CFR 36.42 - Standard XV-Counseling services.

Code of Federal Regulations, 2010 CFR

2010-04-01

... objective assessment of student academic performance. Required formal tests shall be administered annually... standards, schools may use the state mandated academic achievement tests and accompanying requirements. These formal tests and their subtest contents, as well as the test-related procedures, shall include...

25 CFR 36.42 - Standard XV-Counseling services.

Code of Federal Regulations, 2011 CFR

2011-04-01

... objective assessment of student academic performance. Required formal tests shall be administered annually... standards, schools may use the state mandated academic achievement tests and accompanying requirements. These formal tests and their subtest contents, as well as the test-related procedures, shall include...

36 CFR 292.16 - Standards.

Code of Federal Regulations, 2012 CFR

2012-07-01

..., roads, and similar facilities or improvements. Any such necessary encroachment will avoid impeding water...) No excavation or topographic change, except that required for foundations, utilities, or roads, that...) Paints or stains to be of earth tones common to the area. (xv) All buildings and structures, including...

36 CFR 292.16 - Standards.

Code of Federal Regulations, 2013 CFR

2013-07-01

..., roads, and similar facilities or improvements. Any such necessary encroachment will avoid impeding water...) No excavation or topographic change, except that required for foundations, utilities, or roads, that...) Paints or stains to be of earth tones common to the area. (xv) All buildings and structures, including...

36 CFR 292.16 - Standards.

Code of Federal Regulations, 2014 CFR

2014-07-01

..., roads, and similar facilities or improvements. Any such necessary encroachment will avoid impeding water...) No excavation or topographic change, except that required for foundations, utilities, or roads, that...) Paints or stains to be of earth tones common to the area. (xv) All buildings and structures, including...

21 CFR 178.3700 - Petrolatum.

Code of Federal Regulations, 2014 CFR

2014-04-01

... United States Pharmacopeia XX (1980) for white petrolatum or in the National Formulary XV (1980) for yellow petrolatum. (b) Petrolatum meets the following ultraviolet absorbance limits when subjected to the analytical procedure described in § 172.886(b) of this chapter: Ultraviolet absorbance per centimeter...

Emerging aerospace technologies

NASA Technical Reports Server (NTRS)

Ballhaus, W. F., Jr.; Milov, L. A.

1985-01-01

The United States Government has a long history of promoting the advancement of technology to strengthen the economy and national defense. An example is NASA, which was formed in 1958 to establish and maintain U.S. space technology leadership. This leadership has resulted in technological benefits to many fields and the establishment of new commercial industries, such as satellite communications. Currently, NASA's leading technology development at Ames Research Center includes the Tilt Rotor XV-15, which provides the versatility of a helicopter with the speed of a turboprop aircraft; the Numerical Aerodynamic Simulator, which is pushing the state of the art in advanced computational mathematics and computer simulation; and the Advanced Automation and Robotics programs, which will improve all areas of space development as well as life on Earth. Private industry is involved in maintaining technological leadership through NASA's Commercial Use of Space Program, which provides for synergistic relationships among government, industry, and academia. The plan for a space station by 1992 has framed much of NASA's future goals and has provided new areas of opportunity for both domestic space technology and leadership improvement of life on Earth.

The Evolution of Dust in the Multiphase ISM: Grain Destruction Processes

NASA Technical Reports Server (NTRS)

Wolfire, Mark

1999-01-01

This proposal covered year one of a long term project in which we acquired the necessary hardware and softwaxe needed to calculate grain destruction processes in the interstellar medium (ISM). The long term goal of this research is to develop a model for the dust evolution in the ISM capable of explaining observations of elemental depletions, the grain size distribution, and the emission characteristics of the ISM from the X-ray through the FIR. We purchased a SUN Ultra 10 workstation and peripheral devices including an Exabyte Tape drive, HP Laser Printer, and Seagate External Hard Disk. The PI installed the hardware and Solaris operating system on the workstation and integrated the hardware into the network. Software was also purchased to enable connections to the workstation from a PC (Hummingbird Exceed). Additional freeware required to carry out the proposed program was installed on the system including compilers (g77, gcc, g++), editors (emacs), a markup language (LaTeX), and display programs (WIP, XV, SAOtng). We have also successfully modified the required plot files to work with our system which display the results of grain processing.

75 FR 23247 - International Whaling Commission; 62nd Annual Meeting; Nominations

Federal Register 2010, 2011, 2012, 2013, 2014

2010-05-03

... representing the positions of non-governmental organizations. Generally, only one non-governmental position is... representing the positions of non-governmental organizations. Generally, only one non-governmental position is... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-XV73 International...

Area XV Career Education Research & Planning. Final Report.

ERIC Educational Resources Information Center

Indian Hills Community Coll., Ottumwa, IA.

Critical issues in career education are addressed in this report of an advisory committee seeking input and making recommendations for career education implementation in Iowa. Recommendations addressing state, area, and local school district responsibilities are grouped into three main perspectives: planning, implementation, and evaluation. The…

75 FR 14132 - Endangered and Threatened Species; Take of Anadromous Fish

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-24

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-XV38 Endangered and Threatened Species; Take of Anadromous Fish AGENCY: National Marine Fisheries Service (NMFS... Fish and Game (IDFG) for a modification to an existing incidental take permit pursuant to the...

21 CFR 178.3700 - Petrolatum.

Code of Federal Regulations, 2013 CFR

2013-04-01

... the specifications set forth in the United States Pharmacopeia XX (1980) for white petrolatum or in the National Formulary XV (1980) for yellow petrolatum. (b) Petrolatum meets the following ultraviolet absorbance limits when subjected to the analytical procedure described in § 172.886(b) of this chapter...

21 CFR 178.3700 - Petrolatum.

Code of Federal Regulations, 2012 CFR

2012-04-01

... the specifications set forth in the United States Pharmacopeia XX (1980) for white petrolatum or in the National Formulary XV (1980) for yellow petrolatum. (b) Petrolatum meets the following ultraviolet absorbance limits when subjected to the analytical procedure described in § 172.886(b) of this chapter...

75 FR 20565 - Marine Mammals; File No. 14610

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-20

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-XV92 Marine Mammals; File No. 14610 AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric... Protected Resources, National Marine Fisheries Service. [FR Doc. 2010-8971 Filed 4-19-10; 8:45 am] BILLING...

75 FR 16076 - Marine Mammals; File No. 15206

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-31

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-XV57 Marine Mammals; File No. 15206 AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric..., Office of Protected Resources, National Marine Fisheries Service. [FR Doc. 2010-7260 Filed 3-30-10; 8:45...

Heat capacity of the site-diluted spin dimer system Ba₃(Mn 1-xV x)₂O₈

DOE PAGES

Samulon, E. C.; Shapiro, M. C.; Fisher, I. R.

2011-08-05

Heat-capacity and susceptibility measurements have been performed on the diluted spin dimer compound Ba₃(Mn 1-xV x)₂O₈. The parent compound Ba₃Mn₂O₈ is a spin dimer system based on pairs of antiferromagnetically coupled S=1, 3d² Mn⁵⁺ ions such that the zero-field ground state is a product of singlets. Substitution of nonmagnetic S=0, 3d⁰ V⁵⁺ ions leads to an interacting network of unpaired Mn moments, the low-temperature properties of which are explored in the limit of small concentrations 0≤x≤0.05. The zero-field heat capacity of this diluted system reveals a progressive removal of magnetic entropy over an extended range of temperatures, with no evidencemore » for a phase transition. The concentration dependence does not conform to expectations for a spin-glass state. Rather, the data suggest a low-temperature random singlet phase, reflecting the hierarchy of exchange energies found in this system.« less

Aerodynamic interference effects on tilting proprotor aircraft. [using the Green function method

NASA Technical Reports Server (NTRS)

Soohoo, P.; Morino, L.; Noll, R. B.; Ham, N. D.

1977-01-01

The Green's function method was used to study tilting proprotor aircraft aerodynamics with particular application to the problem of the mutual interference of the wing-fuselage-tail-rotor wake configuration. While the formulation is valid for fully unsteady rotor aerodynamics, attention was directed to steady state aerodynamics, which was achieved by replacing the rotor with the actuator disk approximation. The use of an actuator disk analysis introduced a mathematical singularity into the formulation; this problem was studied and resolved. The pressure distribution, lift, and pitching moment were obtained for an XV-15 wing-fuselage-tail rotor configuration at various flight conditions. For the flight configurations explored, the effects of the rotor wake interference on the XV-15 tilt rotor aircraft yielded a reduction in the total lift and an increase in the nose-down pitching moment. This method provides an analytical capability that is simple to apply and can be used to investigate fuselage-tail rotor wake interference as well as to explore other rotor design problem areas.

X-ray fluorescence analysis of yellow pigments in altarpieces by Valencian artists of the XV and XVI centuries

NASA Astrophysics Data System (ADS)

Ferrero, J. L.; Roldán, C.; Ardid, M.; Navarro, E.

1999-02-01

XRF analysis has allowed a quick and precise detection and identification of the inorganic elements that compose the yellow pigments in altarpieces of the XV and XVI centuries painted by the Valencian artists Miguel Alcañiz, Vicente Macip, Juan de Juanes, Hernando Yáñez de la Almedina and Hernando Llanos. The analyses have been carried out with an XRF portable system that consists of a tube of X-rays and detectors of Si(Li) and cadmium zinc telluride. This system has enabled a non-aggressive and non-destructive analysis of many pieces at the Museo de Bellas Artes of Valencia (Spain). Among the yellow pigments we have identified a pigment composed by lead and tin oxides named lead-tin yellow (Pb 2SnO 4), frequently used in European paintings from the XIV century until the first half of the XVIII century. This fact demonstrates the influence of elements and pictorial techniques from Europe to the region of Valencia.

The Iron Project & Iron Opacity Project: Updates on Photoionization, Electron-Ion Recombination of Fe XVII and Ca XV

NASA Astrophysics Data System (ADS)

Eissner, W.; Nahar, S.; Pradhan, A.; Hala, H.; Zhao, L.; Bailey, J.

2016-05-01

We have carried out converged close coupling (CCC) calculations for photoionization of Ne-like Fe XVII and demonstrate orders-of-magnitude enhancements in cross section due to successive core excitations. Convergence criteria are: (i) inclusion of sufficient number of residual ion Fe XVIII core states and (ii) high-resolution of myriad autoionizing resonances. We discuss verification of the conventional oscillator strength sum-rule in limited energy regions for bound-free plasma opacity. We will also report preliminary results from a larger R-matrix calculations of photoionization cross sections and electron-ion recombination rates of Ca XV where Rydberg series of resonances are included for core excitations to 28 states of n=2,3 complexes in contrast to previous 7 states of n=2 complex. The new results show existence of high-peak resonances of n=3 complex and enhanced background in high energy photoionization and a corresponding enhancement in the recombination in the high temperature region. Partial support: NSF, DOE, Ohio Supercomputer Center.

75 FR 13488 - Endangered Species; File No. 14949

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-22

.... SUPPLEMENTARY INFORMATION: The subject permit is requested under the authority of the Endangered Species Act of... exporting of endangered and threatened species (50 CFR 222-226). The purpose of the research is to provide... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-XV33 Endangered...

75 FR 13256 - Endangered Species; File No. 14176

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-19

.... SUPPLEMENTARY INFORMATION: The subject permit is requested under the authority of the Endangered Species Act of..., and exporting of endangered and threatened species (50 CFR 222-226). The applicant is seeking a five... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-XV28 Endangered...

PROCEEDINGS OF THE SYMPOSIUM ON SYSTEM THEORY, NEW YORK, N. Y. APRIL 20, 21, 22 1965. VOLUME XV.

DTIC Science & Technology

The papers presented at the symposium may be grouped as follows: (1) What is system theory ; (2) Representations of systems; (3) System dynamics; (4...Non-deterministic systems; (5) Optimal systems; and (6) Applications of system theory .

Tabulation of comet observations.

NASA Astrophysics Data System (ADS)

1993-10-01

Concerning comets: 1955 III Mrkos, 1955 IV Bakharev-Macfarlane-Krienke, 1955 V Honda, 1956 III Mrkos, 1956 IV P/Olbers, 1957 III Arend-Roland, 1957 V Mrkos, 1958 III Burnham, 1959 VIII P/Giacobini-Zinner, 1960 II Burnham, 1973 XII Kohoutek, 1974 III Bradfield, 1975 IX Kobayashi-Berger-Milon, 1975 X Suzuki-Saigusa-Mori, 1975 XI Bradfield, 1975 XII Mori-Sato-Fujikawa, 1976 IV Bradfield, 1976 VI West, 1979 VII Bradfield, 1980 X P/Stephan-Oerma, 1980 XII Meier, 1980 XIII P/Tuttle, 1981 II Panther, 1981 IV P/Borrelly, 1981 XIX P/Swift-Gehrels, 1982 I Bowell, 1982 IV P/Grigg-Skjellerup, 1982 VI Austin, 1982 VII P/d'Arrest, 1982 VIII P/Churyumov-Gerasimenko, 1983 V Sugano-Saigusa-Fujikawa, 1983 VII IRAS-Araki-Alcock, 1983 X P/Tempel 2, 1983 XI P/Tempel 1, 1983 XIII P/Kopff, 1983 XIV P/IRAS, 1983 XV Shoemaker, 1984 III P/Hartley-IRAS, 1984 IV P/Crommelin, 1984 XI P/Faye, 1984 XIII Austin, 1984 XIV P/Wild 2, 1984 XVI P/Shoemaker 1, 1984 XXIII Levy-Rudenko, 1985 I P/Tsuchinshan 1, 1985 XIII P/Giacobini-Zinner, 1985 XV P/Giclas, 1985 XVI P/Ciffréo, 1985 XVII Hartley-Good, 1985 XVIII P/Shoemaker 3, 1985 XIX Thiele, 1986 I P/Boethin, 1986 III P/Halley, 1986 VIII P/Machholz, 1986 XVII Levy, 1986 XVIII Terasako, 1987 II Sorrells, 1987 VII Wilson, 1987 XIX P/Schwassmann-Wachmann 2, 1987 XXI Levy, 1987 XXIII Rudenko, 1987 XXIV P/Brooks 2, 1987 XXVII P/Kohoutek, 1987 XXIX Bradfield, 1988 IV Furuyama, 1988 XIV P/Tempel 2, 1989 III Shoemaker, 1989 XV P/Schwassmann-Wachmann 1, 1989 XIX Okazaki-Levy-Rudenko, 1990 V Austin, 1990 XVII Tsuchiya-Kiuchi, 1990 XX Levy, 1990 XXI P/Encke, 1990 XXVI Arai, 1991 I P/Metcalf-Brewington, 1991 XV P/Hartley 2, 1991 XVII P/Arend-Rigaux, 1991a1 Shoemaker-Levy, 1991g1 Zanotta-Brewington, 1992c P/Howell, 1992d Tanaka-Machholz, 1992e P/Singer Brewster, 1992f P/Shoemaker-Levy 8, 1992h Spacewatch, 1992j P/Ashbrook-Jackson, 1992t P/Swift-Tuttle, 1992u P/Väisälä 1, 1992w P/Slaughter-Burnham, 1992x P/Schaumasse, 1992y Shoemaker, 1993a Mueller, 1993d Mueller, 1993e P/Shoemaker-Levy 9, 1993f P/Forbes, 1993i P/Holmes, 1993j P/Neujmin 3, 1993k P/Shajn-Schaldach, 1993l P/Helin-Lawrence, 1993m P/Hartley 3, 1993n P/Whipple, 1993ο P/West-Kohoutek-Ikemura, 1993p Mueller, P/Smirnova-Chernykh.

Innovation Abstracts, Volume XV, 1993.

ERIC Educational Resources Information Center

Roueche, Suanne D., Ed.

1993-01-01

This volume of 30 one- to two-page abstracts from 1993 highlights a variety of innovative approaches to teaching and learning in the community college. Topics covered in the abstracts include: (1) role-playing to encourage critical thinking; (2) team learning techniques to cultivate business skills; (3) librarian-instructor partnerships to create…

Benefits of a Space-Based Group System Architecture

DTIC Science & Technology

2015-06-01

Relay Satellite TRL Technology Readiness Level TT&C Telemetry, Tracking, and Control UFO UHF Follow-On xv ACKNOWLEDGMENTS I would like to...replacement with more advanced systems. An example of this addition was adding UHF Follow-On ( UFO ) satellite F11, as a gap filler between the UFO

75 FR 14133 - Endangered and Threatened Species; Take of Anadromous Fish

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-24

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-XV39 Endangered and Threatened Species; Take of Anadromous Fish AGENCY: National Marine Fisheries Service (NMFS... Fish and Wildlife (WDFW) is identified as a co-permit applicant in each of these HGMPs. The duration of...

50 CFR 218.31 - Permissible methods of taking.

Code of Federal Regulations, 2012 CFR

2012-10-01

...); (x) Melon-headed whales (Peponocephala electra)—100 (an average of 20 annually); (xi) False killer... annually); (xiv) Pygmy killer whale (Ferresa attenuatta)—50 (an average of 10 annually); (xv) Rough-toothed... method of take and the indicated number of times: (1) Level B Harassment: (i) Sperm whale (Physeter...

50 CFR 218.31 - Permissible methods of taking.

Code of Federal Regulations, 2011 CFR

2011-10-01

...); (x) Melon-headed whales (Peponocephala electra)—100 (an average of 20 annually); (xi) False killer... annually); (xiv) Pygmy killer whale (Ferresa attenuatta)—50 (an average of 10 annually); (xv) Rough-toothed... method of take and the indicated number of times: (1) Level B Harassment: (i) Sperm whale (Physeter...

Analysis of the Hazardous Material Reutilization Facilities at SUBASE Bangor and NS San Diego

DTIC Science & Technology

1990-12-01

soprene * styrene methyl acrylate methyl methacrylate *turpentine? varnish 9 GROUP IV: OXIDES AND PEROXIDE -rORKING COMPOUNDS a) Gases b) Liquids...lead fluorine GROUP XV: POISON a GROUP XVI: OXIDIZERS .a) Solid a) Solid phosphorus red ammonium nitrate phosphorus white/, ammonium perchlorate yellow

U.S. Drug Policy: Shaping Relations With Latin America

DTIC Science & Technology

2014-06-01

107  Table 4.  World economy rankings...Table 6.  World import / export rankings ......................................................................114  Table 7.  U.S. 2011 and intentional...CentroAmericanos UN United Nations UNODC United Nations Office on Drugs and Crime U.S. United States WHO World Health Organization xv ACKNOWLEDGMENTS

48 CFR 204.7003 - Basic PII number.

Code of Federal Regulations, 2011 CFR

2011-10-01

... procurement instrument is issued or awarded. (3) Position 9. Indicate the type of instrument by entering one...) Invitations for bids—B (iii) Contracts of all types except indefinite delivery contracts, sales contracts, and...—N (xv) Do not use—O (xvi) Purchase order—automated (assign V when numbering capacity of P is...

ARC-1981-AC81-0122-2

NASA Image and Video Library

1981-02-25

NASA Aircraft on ramp (Aerial view) Sides: (L) QSRA (R) C-8A AWJSRA - Back to Front: CV-990 (711) C-141 KAO, CV-990 (712) Galileo, T-38, YO-3A, Lear Jet, X-14, U-2, OH-6, CH-47, SH-3G, RSRA, AH-1G, XV-15, UH-1H

ARC-1981-AC81-0122-1

NASA Image and Video Library

1981-02-25

NASA Aircraft on ramp (Aerial view) Sides: (L) QSRA (R) C-8A AWJSRA - Back to Front: CV-990 (711) C-141 KAO, CV-990 (712) Galileo, T-38, YO-3A, Lear Jet, X-14, U-2, OH-6, CH-47, SH-3G, RSRA, AH-1G, XV-15, UH-1H

ELINT Signal Processing Using Choi-Williams Distribution on Reconfigurable Computers for Detection and Classification of LPI Emitters

DTIC Science & Technology

2008-03-01

WVD Wigner - Ville Distribution xiv THIS PAGE INTENTIONALLY LEFT BLANK xv ACKNOWLEDGMENTS Many thanks to David Caliga of SRC Computer for his...11 2. Wigner - Ville Distribution .................................................................11 3. Choi-Williams... Ville Distribution ...................................12 Table 3. C Code Output for Wigner - Ville Distribution

77 FR 68877 - Self-Regulatory Organizations; The NASDAQ Stock Market LLC; Notice of Filing and Immediate...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-16

... pricing for NASDAQ members using the NASDAQ Options Market (``NOM''), NASDAQ's facility for executing and... recoup costs that the Exchange incurs for routing and executing certain orders in equity options to the International Securities Exchange, LLC (``ISE''). The Exchange's Pricing Schedule at Chapter XV, Section 2(4...

Coping with a Nuclearizing Iran

DTIC Science & Technology

2011-01-01

on-israeli-target-1.2529 Kaplan, Seth , “A New U.S. Policy for Syria: Fostering Political Change in a Divided State,” Middle East Policy, Vol. XV, No...fifth_columns_in_the_gulf Wehrey, Frederic, Dalia Dassa Kaye, Jessica Watkins , Jeffrey Martini, and Robert A. Guffey, The Iraq Effect: The Middle East After

7 CFR 1781.7 - Loan and advance limitations and obligations incurred before loan closing.

Code of Federal Regulations, 2010 CFR

2010-01-01

...) Land treatment measures on individual farms except as provided in § 1781.6(a)(5)(iv). (ii) Buildings... structural measures for flood prevention. (v) Facilities for the production and harvesting of fish and.... (xv) Primarily for water and sewage treatment plants and distribution systems. (xvi) Drainage...

Reflections on Strategic Enrollment Management Structures and Strategies. Part Three

ERIC Educational Resources Information Center

Kalsbeek, David H.

2007-01-01

This article is the third and final in a series prepared originally for AACRAO's Fifteenth Annual Strategic Enrollment Management Conference (SEM XV). Through this series, David Kalsbeek introduces a four-fold typology for differentiating institutional approaches to SEM. In this final reflection, he suggests that grounding this typology in Jungian…

78 FR 26374 - An Evaluation of the Prescription Drug User Fee Act Workload Adjuster; Request for Comments

Federal Register 2010, 2011, 2012, 2013, 2014

2013-05-06

... XV, ``Improving FDA Performance Management,'' subsection B, which was reauthorized by the Food and Drug Administration Safety and Innovation Act (FDASIA) of 2012. The assessment will be conducted by an... Division of Dockets Management (HFA- 305), Food and Drug Administration, 5630 Fishers Lane, rm. 1061...

Visibility of Monocular Symbology in Transparent Head-Mounted Display Applications

DTIC Science & Technology

2015-07-08

Displays XX, edited by Daniel D. Desjardins, Peter L. Marasco , Kalluri R. Sarma, Paul R. Havig, Michael P. Browne, James E. Melzer, Proc. of SPIE Vol...simulators. in Head- and Helmet-Mounted Displays XV: Design and Applications, Proceedings of SPIE Volume 7688 (ed. Peter L. Marasco , P. R. H.) 7688, (2010

Teaching Euclid in a Practical Context: Linear Perspective and Practical Geometry

ERIC Educational Resources Information Center

Camerota, Filippo

2006-01-01

This article explores the transmission of practical knowledge in the XV and XVI centuries. According to cosmographer Egnatio Danti, optics and other mathematical sciences had "been banished" from the main philosophical schools of his period, and "the little which remains to us is limited to some practical aspects learned from the mechanical…

78 FR 61418 - Self-Regulatory Organizations; NASDAQ OMX BX, Inc.; Notice of Filing and Immediate Effectiveness...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-03

... making activities at the Exchange which results in tighter markets and order interaction and benefits all... Participant commits himself to various obligations. Transactions of a Market Maker in its market making... The Exchange proposes to amend BX Options Rules, Chapter XV, Section 2 entitled ``BX Options Market...

A Big Problem for Magellan: Food Preservation

ERIC Educational Resources Information Center

Galvao, Cecilia; Reis, Pedro; Freire, Sofia

2008-01-01

In this paper, we present data related to how a Portuguese teacher developed the module "A big problem for Magellan: Food preservation." Students were asked to plan an investigation in order to identify which were the best food preservation methods in the XV and XVI centuries of Portuguese overseas navigation, and then establish a…

19 CFR 122.75b - Electronic manifest requirement for crew members and non-crew members onboard commercial aircraft...

Code of Federal Regulations, 2012 CFR

2012-04-01

... Record locator, if available; (xv) International Air Transport Association (IATA) departure port code... authorized by law. (f) Master crew member and non-crew member lists. Air carriers subject to the requirements... THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart...

19 CFR 122.75b - Electronic manifest requirement for crew members and non-crew members onboard commercial aircraft...

Code of Federal Regulations, 2013 CFR

2013-04-01

... Record locator, if available; (xv) International Air Transport Association (IATA) departure port code... authorized by law. (f) Master crew member and non-crew member lists. Air carriers subject to the requirements... THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart...

19 CFR 122.75b - Electronic manifest requirement for crew members and non-crew members onboard commercial aircraft...

Code of Federal Regulations, 2011 CFR

2011-04-01

... Record locator, if available; (xv) International Air Transport Association (IATA) departure port code... authorized by law. (f) Master crew member and non-crew member lists. Air carriers subject to the requirements... THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart...

Osaka Symposium and New Accelerator Projects in Japan

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wei, Jie

1997-04-25

The purpose of this presentation was to participate as an invited speaker at the XV RCNP Osaka International Symposium on Multi-GeV High-Performance Accelerators and Related Technology to collaborate with Kyoto University on laser cooling and beam crystallization projects and to give seminars in Beijing and Shanghai on the Relativistic Heavy Ion Collider.

77 FR 10591 - Self-Regulatory Organizations; National Securities Clearing Corporation; Notice of Filing and...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-02-22

... required to make deposits to the Clearing Fund with the amount of each Member's required deposit being fixed by NSCC in accordance with Procedure XV. The Clearing Fund Formula includes an Excess Capital Premium (``Premium''), which may be added to a Members deposit requirement when a Member's Clearing Fund...

75 FR 22025 - Fisheries of the Northeastern United States; Summer Flounder Fishery; Quota Transfer

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-27

.... 0908191244-91427-02] RIN 0648-XV91 Fisheries of the Northeastern United States; Summer Flounder Fishery... of North Carolina is transferring a portion of its 2010 commercial summer flounder quota to the...: Regulations governing the summer flounder fishery are found at 50 CFR part 648. The regulations require annual...

Aeronautics and Space Highlights [1979 Highlights

NASA Technical Reports Server (NTRS)

1979-01-01

The videotape includes footage of the following: Voyagers to Jupiter, Pioneer to Saturn, High Energy Astronomy Observatory, space telescope, space shuttle, astronauts Young and Crippen, 10th anniversary of Apollo 11, Skylab reentry, Landsat, satellite freeze warning, Fire Fighting Module, SAGE, wind generators, Solar Energy Project, electric car research, XV-15, HiMAT, and crash worthiness tests.

5 CFR 581.104 - Moneys which are not subject to garnishment.

Code of Federal Regulations, 2012 CFR

2012-01-01

... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Moneys which are not subject to... Moneys which are not subject to garnishment. (a) Payments made pursuant to the provisions of the Federal... personnel; (xiv) Uniform allowances; and (xv) Personal money allowances for General and Flag officers, and...

5 CFR 581.104 - Moneys which are not subject to garnishment.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Moneys which are not subject to... Moneys which are not subject to garnishment. (a) Payments made pursuant to the provisions of the Federal... personnel; (xiv) Uniform allowances; and (xv) Personal money allowances for General and Flag officers, and...

5 CFR 581.104 - Moneys which are not subject to garnishment.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Moneys which are not subject to... Moneys which are not subject to garnishment. (a) Payments made pursuant to the provisions of the Federal... personnel; (xiv) Uniform allowances; and (xv) Personal money allowances for General and Flag officers, and...

5 CFR 581.104 - Moneys which are not subject to garnishment.

Code of Federal Regulations, 2013 CFR

2013-01-01

... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Moneys which are not subject to... Moneys which are not subject to garnishment. (a) Payments made pursuant to the provisions of the Federal... personnel; (xiv) Uniform allowances; and (xv) Personal money allowances for General and Flag officers, and...

77 FR 9610 - Gastroenterology-Urology Devices; Reclassification of Sorbent Hemoperfusion Devices for the...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-02-17

..., substances. and drugs (e.g., adsorption of glucose, unspecific removal characteristics, drop in patients... Sec. 860.130 of the regulations. XIV. Environmental Impact The Agency has determined under 21 CFR 25... impact statement is required. XV. Analysis of Impacts FDA has examined the impacts of the proposed rule...

India’s Strategic Defense Transformation: Expanding Global Relationships

DTIC Science & Technology

2009-11-01

vision for the Nonaligned Movement.93 Prime Minister Singh’s above statement at the NAM summit at Sharm El-Sheikh, Egypt, on July 15, 2009, sought to...93. Manmohan Singh, “Statement by the Prime Minister at the XV Summit of the Non Aligned Movement,” Sharm El-Sheikh, Egypt, July 15, 2009. 94

40 CFR Appendix Xv to Part 86 - Procedure for Determining an Acceptable Exhaust Regeneration Durability-Data Test Schedule for...

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 19 2010-07-01 2010-07-01 false Procedure for Determining an Acceptable Exhaust Regeneration Durability-Data Test Schedule for Diesel Cycle Vehicles Equipped With... Schedule for Diesel Cycle Vehicles Equipped With Periodically Regenerating Trap Oxidizer Systems Certifying...

50 CFR 218.21 - Permissible methods of taking.

Code of Federal Regulations, 2012 CFR

2012-10-01

... annually); (xv) Pygmy killer whale (Feresa attenuate)—15 (an average of 3 annually); (xvi) Killer whale... dolphin (Lagenorhynchus acutus)—100 (an average of 20 annually); (x) Pilot whales (Globicephala sp.)—100 (an average of 20 annually); (xi) Dwarf or pygmy sperm whales (Kogia sp.)—15 (an average of 3 annually...

50 CFR 218.21 - Permissible methods of taking.

Code of Federal Regulations, 2010 CFR

2010-10-01

... annually); (xv) Pygmy killer whale (Feresa attenuate)—15 (an average of 3 annually); (xvi) Killer whale... dolphin (Lagenorhynchus acutus)—100 (an average of 20 annually); (x) Pilot whales (Globicephala sp.)—100 (an average of 20 annually); (xi) Dwarf or pygmy sperm whales (Kogia sp.)—15 (an average of 3 annually...

50 CFR 218.21 - Permissible methods of taking.

Code of Federal Regulations, 2011 CFR

2011-10-01

... annually); (xv) Pygmy killer whale (Feresa attenuate)—15 (an average of 3 annually); (xvi) Killer whale... dolphin (Lagenorhynchus acutus)—100 (an average of 20 annually); (x) Pilot whales (Globicephala sp.)—100 (an average of 20 annually); (xi) Dwarf or pygmy sperm whales (Kogia sp.)—15 (an average of 3 annually...

26 CFR 509.118 - Credit against United States tax for Swiss tax.

Code of Federal Regulations, 2010 CFR

2010-04-01

.... For the purpose of mitigating double taxation, Article XV(1)(a) of the convention provides that a citizen or resident of the United States, or a domestic corporation, deriving income from sources within... royalty derived from sources within the United States by a resident of Switzerland, such royalty shall be...

19 CFR 10.607 - Goods eligible for tariff preference level claims.

Code of Federal Regulations, 2010 CFR

2010-04-01

... Republic-Central America-United States Free Trade Agreement Tariff Preference Level § 10.607 Goods eligible.... 10.607 Section 10.607 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND... apparel goods provided for in U.S. Note 15(b), Subchapter XV, Chapter 99, HTSUS, that are both cut (or...

The Eagle’s Talons. The American Experience at War

DTIC Science & Technology

1988-12-01

carrying American passengers (for 143 EAGLE’S TALONS example, the Lusitania ), became the most volatile issue be- tween the United States and Germany. It...99, 103-4, 108, 118-22 Lusitania : 144, 374 McClernand, John Alexander: Lys River: 163 103 McDowell, Irvin: 105, 114-15, MacArthur, Douglas: xv, 16

Aerodynamics Characteristics of Multi-Element Airfoils at -90 Degrees Incidence

NASA Technical Reports Server (NTRS)

Stremel, Paul M.; Schmitz, Fredric H. (Technical Monitor)

1994-01-01

A developed method has been applied to calculate accurately the viscous flow about airfoils normal to the free-stream flow. This method has special application to the analysis of tilt rotor aircraft in the evaluation of download. In particular, the flow about an XV-15 airfoil with and without deflected leading and trailing edge flaps at -90 degrees incidence is evaluated. The multi-element aspect of the method provides for the evaluation of slotted flap configurations which may lead to decreased drag. The method solves for turbulent flow at flight Reynolds numbers. The flow about the XV-15 airfoil with and without flap deflections has been calculated and compared with experimental data at a Reynolds number of one million. The comparison between the calculated and measured pressure distributions are very good, thereby, verifying the method. The aerodynamic evaluation of multielement airfoils will be conducted to determine airfoil/flap configurations for reduced airfoil drag. Comparisons between the calculated lift, drag and pitching moment on the airfoil and the airfoil surface pressure will also be presented.

[Menarche, menstrual and sociodemographic characteristics of Puerto Rican female athletes in the XV and XVI Central American and Caribbean Games].

PubMed

Rivera, M A; Mendez Zamora, I; Matos, R M; Rivera, A

1993-09-01

This investigation described maturation, menstrual and socio-demographic characteristics of 65 Puerto Rican women athletes that were interviewed during the XVI Central American and Caribbean Games (CACG), Mexico City in 1990. The results were compared with those of Puerto Rican women athletes (n = 52) at the XV CACG, Santiago Dominican Republic, 1986. The quantitative variables (age, age at initiation of training, years of training, age at menarche, birth order, and family size) were not statistically different (t-independent, p > or = 0.05). The observed frequencies for the qualitative variables (menstrual characteristics, degree of certainty in the recall of age of menarche, use of oral contraceptives, and marital status) were very similar. the women at the XVI CAC in Mexico demonstrated similar maturational, menstrual and socio-demographic characteristics to the those athletes evaluated four years earlier in Santiago and based on their long history of training, both samples were representative of athletically mature athletes. The findings were very similar to those reported for olympic athletes and such data expands the available information on Puerto Rican women athletes.

Rotor Design Options for Improving XV-15 Whirl-Flutter Stability Margins

NASA Technical Reports Server (NTRS)

Acree, C. W., Jr.; Peyran, R. J.; Johnson, Wayne

2004-01-01

Rotor design changes intended to improve tiltrotor whirl-flutter stability margins were analyzed. A baseline analytical model of the XV-15 was established, and then a thinner, composite wing was designed to be representative of a high-speed tiltrotor. The rotor blade design was modified to increase the stability speed margin for the thin-wing design. Small rearward offsets of the aerodynamic-center locus with respect to the blade elastic axis created large increases in the stability boundary. The effect was strongest for offsets at the outboard part of the blade, where an offset of the aerodynamic center by 10% of tip chord improved the stability margin by over 100 knots. Forward offsets of the blade center of gravity had similar but less pronounced effects. Equivalent results were seen for swept-tip blades. Appropriate combinations of sweep and pitch stiffness completely eliminated whirl flutter within the speed range examined; alternatively, they allowed large increases in pitch-flap coupling (delta-three) for a given stability margin. A limited investigation of the rotor loads in helicopter and airplane configuration showed only minor increases in loads.

Investigation of Kodak extended dose range (EDR) film for megavoltage photon beam dosimetry.

PubMed

Chetty, Indrin J; Charland, Paule M

2002-10-21

We have investigated the dependence of the measured optical density on the incident beam energy, field size and depth for a new type of film, Kodak extended dose range (Kodak EDR). Film measurements have been conducted over a range of field sizes (3 x 3 cm2 to 25 x 25 cm2) and depths (d(max) to 15 cm), for 6 MV and 15 MV photons within a solid water phantom, and the variation in sensitometric response (net optical density versus dose) has been reported. Kodak EDR film is found to have a linear response with dose, from 0 to 350 cGy, which is much higher than that typically seen for Kodak XV film (0-50 cGy). The variation in sensitometric response for Kodak EDR film as a function of field size and depth is observed to be similar to that of Kodak XV film; the optical density varied in the order of 2-3% for field sizes of 3 x 3 cm2 and 10 x 10 cm2 at depths of d(max), 5 cm and 15 cm in the phantom. Measurements for a 25 x 25 cm2 field size showed consistently higher optical densities at depths of d(max), 5 cm and 15 cm, relative to a 10 x 10 cm2 field size at 5 cm depth, with 4-5% differences noted at a depth of 15 cm. Fractional depth dose and profiles conducted with Kodak EDR film showed good agreement (2%/2 mm) with ion chamber measurements for all field sizes except for the 25 x 25 cm2 at depths greater than 15 cm, where differences in the order of 3-5% were observed. In addition, Kodak EDR film measurements were found to be consistent with those of Kodak XV film for all fractional depth doses and profiles. The results of this study indicate that Kodak EDR film may be a useful tool for relative dosimetry at higher dose ranges.

Evaluation of Kodak EDR2 film for dose verification of intensity modulated radiation therapy delivered by a static multileaf collimator.

PubMed

Zhu, X R; Jursinic, P A; Grimm, D F; Lopez, F; Rownd, J J; Gillin, M T

2002-08-01

A new type of radiographic film, Kodak EDR2 film, was evaluated for dose verification of intensity modulated radiation therapy (IMRT) delivered by a static multileaf collimator (SMLC). A sensitometric curve of EDR2 film irradiated by a 6 MV x-ray beam was compared with that of Kodak X-OMAT V (XV) film. The effects of field size, depth and dose rate on the sensitometric curve were also studied. It is found that EDR2 film is much less sensitive than XV film. In high-energy x-ray beams, the double hit process is the dominant mechanism that renders the grains on EDR2 films developable. As a result, in the dose range that is commonly used for film dosimetry for IMRT and conventional external beam therapy, the sensitometric curves of EDR2 films cannot be approximated as a linear function, OD = c * D. Within experimental uncertainty, the film sensitivity does not depend on the dose rate (50 vs 300 MU/min) or dose per pulse (from 1.0 x 10(-4) to 4.21 x 10(-4) Gy/pulse). Field sizes and depths (up to field size of 10 x 10 cm2 and depth = 10 cm) have little effect on the sensitometric curves. Percent depth doses (PDDs) for both 6 and 23 MV x rays were measured with both EDR2 and XV films and compared with ion chamber data. Film data are within 2.5% of the ion chamber results. Dose profiles measured with EDR2 film are consistent with those measured with an ion chamber. Examples of measured IMRT isodose distributions versus calculated isodoses are presented. We have used EDR2 films for verification of all IMRT patients treated by SMLC in our clinic. In most cases, with EDR2 film, actual clinical daily fraction doses can be used for verification of composite isodose distributions of SMLC-based IMRT.

26 CFR 301.6103(j)(1)-1 - Disclosures of return information reflected on returns to officers and employees of the...

Code of Federal Regulations, 2012 CFR

2012-04-01

..., and information derived from the Social Security Administration and other sources for the purposes of...) Total Social Security benefits. (x) Adjusted gross income. (xi) Type of tax return filed. (xii) Entity.... (xiv) Posting cycle date relative to filing. (xv) Social Security benefits. (xvi) Earned Income (as...

26 CFR 301.6103(j)(1)-1 - Disclosures of return information reflected on returns to officers and employees of the...

Code of Federal Regulations, 2013 CFR

2013-04-01

..., and information derived from the Social Security Administration and other sources for the purposes of...) Total Social Security benefits. (x) Adjusted gross income. (xi) Type of tax return filed. (xii) Entity.... (xiv) Posting cycle date relative to filing. (xv) Social Security benefits. (xvi) Earned Income (as...

26 CFR 301.6103(j)(1)-1 - Disclosures of return information reflected on returns to officers and employees of the...

Code of Federal Regulations, 2014 CFR

2014-04-01

..., and information derived from the Social Security Administration and other sources for the purposes of...) Total Social Security benefits. (x) Adjusted gross income. (xi) Type of tax return filed. (xii) Entity.... (xiv) Posting cycle date relative to filing. (xv) Social Security benefits. (xvi) Earned Income (as...

26 CFR 301.6103(j)(1)-1 - Disclosures of return information reflected on returns to officers and employees of the...

Code of Federal Regulations, 2011 CFR

2011-04-01

..., and information derived from the Social Security Administration and other sources for the purposes of...) Total Social Security benefits. (x) Adjusted gross income. (xi) Type of tax return filed. (xii) Entity.... (xiv) Posting cycle date relative to filing. (xv) Social Security benefits. (xvi) Earned Income (as...

Cauliflower is a new host of a subgroup 16SrVII-B phytoplasma associated with stunting disease

USDA-ARS?s Scientific Manuscript database

Cauliflower stunt has occurred with high levels of incidence and provoked significant yield reduction in Brazilian crops. Phytoplasmas belonging to the subgroups 16SrIII-J and 16SrXV-A were previously reported in association with the disease. In 2014, plants with typical symptoms of the disease were...

A Vocational Articulation Model for Iowa--Secondary through Post-Secondary. Final Report.

ERIC Educational Resources Information Center

Poort, Stephen M.; Williamson, Thomas

This report presents the history and results of a vocational education articulation project conducted by Indian Hills Community College (IHCC) in cooperation with Merged Area XV Local Education Agencies. An abstract of the project outlines the institutions which cooperated in the project, the time covered by the project report, and the project's…

26 CFR 301.6103(j)(1)-1 - Disclosures of return information reflected on returns to officers and employees of the...

Code of Federal Regulations, 2010 CFR

2010-04-01

..., and information derived from the Social Security Administration and other sources for the purposes of...) Total Social Security benefits. (x) Adjusted gross income. (xi) Type of tax return filed. (xii) Entity.... (xiv) Posting cycle date relative to filing. (xv) Social Security benefits. (xvi) Earned Income (as...

75 FR 17315 - Fisheries of the Exclusive Economic Zone Off Alaska; Pacific Cod for American Fisheries Act...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-06

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration 50 CFR Part 679 [Docket No. 0910131363-0087-02] RIN 0648-XV66 Fisheries of the Exclusive Economic Zone Off Alaska; Pacific Cod for American Fisheries Act Catcher Processors Using Trawl Gear in the Bering Sea and Aleutian Islands...

Guidebook for Risk Perception and Communication in Water Resources Planning. Part 1. Underpinnings and Planning Applications

DTIC Science & Technology

1993-10-01

role of precognitive , message be transmitted from the source to emotional response is emphasized. the receiver? xv • Feedback from the audience: What...directly to the public’s perceptions of, and will individuals easily and quickly buy into reactions to, risk, and the role of precognitive , the models

75 FR 14498 - Fisheries of the Exclusive Economic Zone Off Alaska; Atka Mackerel in the Bering Sea and Aleutian...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-26

... the groundfish fishery in the BSAI exclusive economic zone according to the Fishery Management Plan.... 0910131363-0087-02] RIN 0648-XV52 Fisheries of the Exclusive Economic Zone Off Alaska; Atka Mackerel in the Bering Sea and Aleutian Islands Management Area AGENCY: National Marine Fisheries Service (NMFS...

Studies in Mathematics, Volume XV. Calculus and Science.

ERIC Educational Resources Information Center

Twersky, Victor

This book is designed to illustrate how one general method of calculus is used in many different sciences and how different methods of calculus have furthered the development of essentially one field of science. The material is written so that it could serve as a math-science supplement for many courses. Chapters included are: (1) Introduction;…

77 FR 21130 - Self-Regulatory Organizations; The NASDAQ Stock Market LLC; Notice of Filing and Immediate...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-04-09

... proposes to modify Chapter XV, Options Pricing, Section 2, of the Options Rules portion of the NASDAQ Rulebook governing pricing for NASDAQ members using The NASDAQ Options Market (``NOM''), NASDAQ's facility... certain Customer Routing Fees to recoup costs incurred by the Exchange in routing to away markets. While...

78 FR 13105 - Self-Regulatory Organizations; NASDAQ OMX BX, Inc.; Notice of Filing and Immediate Effectiveness...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-26

... Relating to a Pricing Clarification February 19, 2013. Pursuant to Section 19(b)(1) of the Securities... Exchange proposes to add references to certain terms in Chapter XV, entitled ``Options Pricing.'' The... Options Market Maker pricing in all securities, the Participant must be registered as a BX Options Market...

National Training Course. Emergency Medical Technician. Paramedic. Instructor's Lesson Plans. Module XV. Telemetry and Communications.

ERIC Educational Resources Information Center

National Highway Traffic Safety Administration (DOT), Washington, DC.

This instructor's lesson plan guide on telemetry and communications is one of fifteen modules designed for use in the training of emergency medical technicians (paramedics). Two units of study are presented: (1) emergency medical services communications systems (items of equipment and such radio communications concepts as frequency allocation,…

ARC-1964-AC-32745

NASA Image and Video Library

1964-09-19

XV-5A airplane installed in 40x80ft Subsonic Wind Tunnel at NASA Ames Research Center with Tom Mills. The propulsive lift system was tested to determine power-on performance characteristics in preparation for flight tests. Used in Memoiors of an Aeronautical Engineer, Flight Tests at Ames Research Center 1940-1970 NASA-SP-2002-4526 (Seth B. Anderson)

AN ADVANCED PLACEMENT COURSE IN ANALYTIC GEOMETRY AND CALCULUS (MATHEMATICS XV X AP).

ERIC Educational Resources Information Center

DEROLF, JOHN J.; MIENTKA, WALTER E.

THIS TEXT ON ANALYTIC GEOMETRY AND CALCULUS IS A CORRESPONDENCE COURSE DESIGNED FOR ADVANCED PLACEMENT OF HIGH SCHOOL STUDENTS IN COLLEGE. EACH OF THE 21 LESSONS INCLUDES READING ASSIGNMENTS AND LISTS OF PROBLEMS TO BE WORKED. IN ADDITION, SUPPLEMENTARY EXPLANATIONS AND COMMENTS ARE INCLUDED THAT (1) PROVIDE ILLUSTRATIVE EXAMPLES OF CONCEPTS AND…

Outsourcing Wars: Comparing Risk, Benefits and Motivation of Contractors and Military Personnel in Iraq and Afghanistan (2009-2011)

DTIC Science & Technology

2012-06-01

Cary Simon Approved for public release; distribution is unlimited THIS PAGE INTENTIONALLY LEFT BLANK i REPORT DOCUMENTATION PAGE...Advisor _____________________________________ Cary Simon, Support Advisor _____________________________________ William R...International Development xv ACKNOWLEDGMENTS Professor Kathryn Aten and Professor Cary Simon - I want to express my deepest gratitude to you for being

Put a Brain in Your Camera: Nonstandard Perspectives and Computer Images in the Arts

ERIC Educational Resources Information Center

Reggini, Horacio C.

2011-01-01

Ever since the geometry of central perspective (conical projection) was developed in the XV century, it has been observed that mechanical application of the procedure leads to effects of distortion and exaggeration of shapes and sizes, which often make the result look unnatural. Similar observations are made with the optical projections obtained…

19 CFR 10.607 - Goods eligible for tariff preference level claims.

Code of Federal Regulations, 2014 CFR

2014-04-01

... average fiber diameter of not over 18.5 microns. Subheading 9822.05.11, HTSUS, applies to the goods... goods described above that are not subject to such limits; (b) Cotton or man-made fiber apparel goods of Nicaragua. Cotton or man-made fiber apparel goods described in U.S. Note 15(b), Subchapter XV, Chapter 99...

19 CFR 10.607 - Goods eligible for tariff preference level claims.

Code of Federal Regulations, 2013 CFR

2013-04-01

... average fiber diameter of not over 18.5 microns. Subheading 9822.05.11, HTSUS, applies to the goods... goods described above that are not subject to such limits; (b) Cotton or man-made fiber apparel goods of Nicaragua. Cotton or man-made fiber apparel goods described in U.S. Note 15(b), Subchapter XV, Chapter 99...

19 CFR 10.607 - Goods eligible for tariff preference level claims.

Code of Federal Regulations, 2012 CFR

2012-04-01

... average fiber diameter of not over 18.5 microns. Subheading 9822.05.11, HTSUS, applies to the goods... goods described above that are not subject to such limits; (b) Cotton or man-made fiber apparel goods of Nicaragua. Cotton or man-made fiber apparel goods described in U.S. Note 15(b), Subchapter XV, Chapter 99...

77 FR 43883 - Self-Regulatory Organizations; NASDAQ OMX BX, Inc.; Notice of Filing and Immediate Effectiveness...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-26

...'s Web site at http://www.nasdaqtrader.com/micro.aspx?id=BXRulefilings , at the principal office of... Options market.\\3\\ Specifically, the Exchange adopted the following routing fees in Chapter XV, Section 2(4): \\3\\ See Securities Exchange Act Release No. 67339 (July 3, 2012), 77 FR 405688 (July 10, 2012...

Frequency-Response Identification of XV-15 Tilt-Rotor Aircraft Dynamics

DTIC Science & Technology

1987-05-01

Sciences, Vol. 14, No. 9, Sept. 1947, pp. 493-499. 1 163 8. Greenberg , Harry, "A Survey of Methods for Determining Stabil- ity Parameters of an Airplane...Sweep Testing Technique using a Bell 214-ST Helicopter," NASA TM-89422, 1987. 21. Hilbert , K. B., Lebacqz, J. V., and Hindson, W. S., "Flight

[An ambiguous partnership between an apothecary and a physician in the middle of the XV century].

PubMed

Benezet, J P

1998-01-01

The analysis of an accountancy showed an ambiguous partnership between an apothecary and a physician. A quickly reading induce an unfavourable business accomplice opinion. a careful and well timed examination of facts in their economic and social context don't permit a positive charge. All doubts are not removed.

Statistical Forecasting of Bankruptcy of Defense Contractors. Problems and Prospects

DTIC Science & Technology

1994-01-01

investors is along the lines of the Capital Asset Pricing Model ( CAPM ). In portfolio theory generally, investors demand an expected-return premium for...Ellen Pint, Rachel Schmidt, and especially Dennis Smallwood of RAND also contributed useful insights and comments. xv Acronyms CAPM Capital Asset ...Bond Yields ............................................. 26 Bond Model Performance ................................. 27 Extensions and Limitations

Principles of Design Energize Learning Communities: Practical Tips Put the Emphasis on "Learning"

ERIC Educational Resources Information Center

Easton, Lois Brown

2012-01-01

Adult learning is essential in schools. Learning Forward's Scholar Laureate Shirley Hord observes, "The improvement of our schools seldom results from mandates. What has become very clear is that change (its adoption and implementation) cannot occur without the provision of ongoing and long-term learning for the professionals" (Hord, 2011, p. xv).…

19 CFR Appendix to Part 102 - Textile and Apparel Manufacturer Identification

Code of Federal Regulations, 2012 CFR

2012-04-01

...)—XW NORTHWEST TERRITORIES—XT NOVA SCOTIA—XN NUNAVUT—XV ONTARIO—XO PRINCE EDWARD ISLAND—XP QUEBEC—XQ SASKATCHEWAN—XS YUKON TERRITORY—XY 3. The next group of characters in the MID consists of the first three... name, then only the first three characters from the name are to be used. For example, “Amalgamated...

19 CFR Appendix to Part 102 - Textile and Apparel Manufacturer Identification

Code of Federal Regulations, 2013 CFR

2013-04-01

...)—XW NORTHWEST TERRITORIES—XT NOVA SCOTIA—XN NUNAVUT—XV ONTARIO—XO PRINCE EDWARD ISLAND—XP QUEBEC—XQ SASKATCHEWAN—XS YUKON TERRITORY—XY 3. The next group of characters in the MID consists of the first three... name, then only the first three characters from the name are to be used. For example, “Amalgamated...

PREFACE: XV Chilean Physics Symposium, 2006

NASA Astrophysics Data System (ADS)

Soto, Leopoldo; Moreno, José; Ávila, Ricardo; Cubillos, Karla

2008-02-01

The Chilean Physics Symposium is the main gathering of Physics in Chile, and its organization is one of the central activities of the Chilean Physical Society (Sociedad Chilena de Física, SOCHIFI). The Symposium assembles the largest number of Chilean and foreign physicists resident in the country. Recent advances in the various research areas in Physics are presented, by researchers from Universities and national research centres. At the same time this is an occasion for the participation of Physics students from both the pre- and post-graduate programs. The Symposium has gathered continuously every two years, since 1978. The organization of the XV symposium was in charge of the Thermonuclear Plasma Department of the Chilean Nuclear Energy Commission, and it took place on 15-17 November 2006, at La Reina Nuclear Studies Centre, in the city of Santiago, Chile. During this symposium the relation of research in Physics with education and with the productive sector in the country was also analysed. During the Symposium, 121 abstracts were submitted, from 255 authors. All authors were invited to submit articles for publication in the Symposium Proceedings. The articles received were reviewed by the Symposium Scientific Committee and by invited peers. The criteria for review focussed on the demand for a consistent piece of research, and a clear statement of results. Most of the articles received report the work of research groups where advanced students and young investigators are prominent. Thanks to their enthusiasm, 52 articles are presented in this issue. We would like to express our appreciation to their authors. Finally, my personal apology is in order regarding my delay in publishing these proceedings. A sequence of personal and professional highly demanding circumstances have been in the way. I would like to thank Journal of Physics: Conference Series for providing very fast publication of the proceedings, having published them online less than 4 weeks after my initial contact with the journal. Leopoldo Soto President, Chilean Physical Society Head of Plasma Department, Chilean Nuclear Energy Commission Editors: Leopoldo Soto, José Moreno, Ricardo Ávila, Karla Cubillos Scientific Committee Physicists from various research institutions, specialty areas, and regions of the country were invited by the Board of SOCHIFI to join the Symposium Scientific Committee, which was formed by: Julio Yánez, Universidad de Antofagasta Sergio del Campo, Pontificia Universidad Católica de Valparaíso Patricio Vargas, Universidad Técnica Federico Santa María Rodrigo Soto, Universidad de Chile Ulrich Volkmann, Pontificia Universidad Católica de Chile Víctor Muñoz, Universidad de Chile Rodrigo Aros, Universidad Andrés Bello Leopoldo Soto (Chairman), Comisión Chilena de Energía Nuclear Luis Huerta, Universidad de Talca Patricio Salgado, Universidad de Concepción Luis Roa, Universidad de Concepción Asticio Vargas, Universidad de la Frontera, Temuco Cristian Martínez, Centro de Estudios Científicos, Valdivia Organizing Commitee Leopoldo Soto (Chairman), Comisión Chilena de Energía Nuclear Erik Herrera, Comisión Chilena de Energía Nuclear José Moreno, Comisión Chilena de Energía Nuclear Andrea Rozas, Comisión Chilena de Energía Nuclear Rodrigo Aros, Universidad Andrés Bello Gonzalo Gutiérrez, Universidad de Chile Executive Board, Chilean Physical Society April 2006 - April 2008 Leopoldo Soto, President Joel Saavedra, Secretary Rodrigo Aros: Treasurer Rodolfo Figueroa: Director Luis Huerta: Director Conference photograph

Analysis of SSN 688 Class Submarine Maintenance Delays

DTIC Science & Technology

2017-06-01

Simplified Notional Submarine FRP (Independent Deployer) ..................11  Figure 8.  Evolution of Los Angeles Class Submarine Notional...Number TFP Technical Foundation Paper URO Unrestricted Operations xv ACKNOWLEDGMENTS I would like to thank my lead advisor, Professor Nick Dew...only on Los Angeles (SSN 688)-class submarines. Being the higher quantity and older generation submarine hull type, the Los Angeles class submarine

Student Characteristics as Compared to the Community Profile, Fall, 1985. [Research Report Series], Volume XV, No. 11.

ERIC Educational Resources Information Center

Lucas, John A.

In fall 1985, a study was conducted at William Rainey Harper College (WRHC) to provide a student profile for general information purposes, to gather data not available on the college's automated data file, and to analyze WRHC's marketing outreach. Surveys were mailed to random samples of 500 credit degree students and 300 continuing education…

Gain Coupling VECSELs (POSTPRINT)

DTIC Science & Technology

2013-01-01

International Conference on Molecular Beam Epitaxy (MBE-XV). 10. A. Siegman , Lasers , University Sciences Books, 1986. 11. C. Hessenius, N. Terry, M...Clearance Date 28 December 2012. Report contains color. 14. ABSTRACT Vertical external cavity surface emitting lasers (VECSELs) provide a flexible...platform in order to explore curious laser designs and systems as their high-power, high-brightness make them attractive for many applications, and their

19 CFR 10.607 - Goods eligible for tariff preference level claims.

Code of Federal Regulations, 2011 CFR

2011-04-01

..., HTSUS, that are both cut (or knit-to-shape) and sewn or otherwise assembled in the territory of... wool fabric of subheading 5111.11.70, 5111.19.60, or 5111.90.90, HTSUS, the goods are both cut (or knit... U.S. Note 15(c), Subchapter XV, Chapter 99, HTSUS; (d) Apparel goods of Costa Rica, not knitted or...

Methods for Determining Particle Size Distributions from Nuclear Detonations.

DTIC Science & Technology

1987-03-01

Debris . . . 30 IV. Summary of Sample Preparation Method . . . . 35 V. Set Parameters for PCS ... ........... 39 VI. Analysis by Vendors...54 XV. Results From Brookhaven Analysis Using The Method of Cumulants ... ........... . 54 XVI. Results From Brookhaven Analysis of Sample...R-3 Using Histogram Method ......... .55 XVII. Results From Brookhaven Analysis of Sample R-8 Using Histogram Method ........... 56 XVIII.TEM Particle

Wood anatomy of the neotropical Sapotaceae : XV. Sandwithiodoxa

Treesearch

Bohumil Francis Kukachka

1980-01-01

Sandwithiodoxa is a monotypic genus established by Aubréville and Pellegrin based on Pouteria egregia Sandwith, making the new combination Sandwithiodoxa egregia (Sandw.) Aubr. and Pellegr. The wood is light brown, very hard and heavy with an average specific gravity of 1.09. Individual specimens attain a specific gravity of 1.21. Floristically it is said to have...

78 FR 14141 - Self-Regulatory Organizations; NASDAQ OMX BX, Inc.; Notice of Filing and Immediate Effectiveness...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-04

... The Exchange proposes to amend fees for routing options to away markets in Chapter XV, entitled... related to routing orders to away markets plus the away market's transaction fee. The Exchange assesses a... exchanges in addition to the actual transaction fee or rebate paid by the away market.\\3\\ \\3\\ Today, the...

A Study of Continuing Education Course Credit Strategy. Office of College & Community Research, Vol. XV, No. 8.

ERIC Educational Resources Information Center

Bakshis, Robert; Saracco, Bonnie

In October, 1979, a survey of students enrolled in noncredit Data Processing (DP) and Secretarial Science (SS) courses at Triton Community College was conducted to determine if conversion of noncredit adult education courses to regular college credit status would result in a substantial loss of students. Responses were obtained from 474 SS…

Water Quality Instructional Resources Information System (IRIS). A Compilation of Abstracts to Water Quality and Water Resources Materials. Supplement XV.

ERIC Educational Resources Information Center

Ohio State Univ., Columbus, OH. Information Reference Center for Science, Mathematics, and Environmental Education.

Compiled are abstracts and indexes to selected print and non-print materials related to wastewater treatment and water quality education and instruction, as well as materials related to pesticides, hazardous wastes, and public participation. Sources of abstracted/indexed materials include all levels of government, private concerns, and educational…

77 FR 40688 - Self-Regulatory Organizations; NASDAQ OMX BX, Inc.; Notice of Filing and Immediate Effectiveness...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-10

... Chapter XV, Section 2 entitled ``BX Options Market--Fees and Rebates'' to adopt rebates and fees relating... approval to operate a new options market.\\3\\ The new market, called NASDAQ OMX BX Options, or BX Options... rebates and fees for Customers, BX Options Market Makers \\4\\ and Non-Customers \\5\\ in various options \\6...

Economics of Higher Education. Bulletin, 1962, No. 5. OE-50027. [Chapter IX - Chapter XV

ERIC Educational Resources Information Center

Mushkin, Selma J., Ed.

1962-01-01

In the past few years an important beginning has been made toward defining and exploring the major issues in the economics of higher education. The research of economists covers a wide range of problems, from that of the Nation's requirements for college-trained people, to detailed questions of financing. Perhaps no single area of this work offers…

National Survey of American Attitudes on Substance Abuse XV: Teens and Parents

ERIC Educational Resources Information Center

National Center on Addiction and Substance Abuse at Columbia University, 2010

2010-01-01

This 15th annual "back-to-school survey" continues the unique effort of The National Center on Addiction and Substance Abuse (CASA) at Columbia University to track attitudes of teens and those, like parents, who influence them. Over a decade and a half, through this survey the researchers have identified factors that increase or decrease the…

Coaching Whiteness: Stories of "Pacifica Exotica" in Australian High School Rugby

ERIC Educational Resources Information Center

McDonald, Brent

2016-01-01

The intersection of sport and education is a potentially powerful site for the production of class and gender. This paper examines how the relationship between sport and education can also serve to (re)produce ideas about "race". Drawing on research conducted during my time as a coach of the first XV rugby team at an elite private school…

48 CFR 52.204-8 - Annual Representations and Certifications.

Code of Federal Regulations, 2010 CFR

2010-10-01

... solicitations are issued by other than DoD, NASA, and the Coast Guard. (B) The provision with its Alternate I applies to solicitations issued by DoD, NASA, or the Coast Guard. (ix) 52.219-2, Equal Low Bids. This... solicitations that are for, or specify the use of, EPA-designated items. (xv) 52.225-2, Buy American Act...

An Exploratory Analysis of the Navy Personnel Support Delivery Model

DTIC Science & Technology

2017-09-01

technology-competent generation. Our efforts are focused on providing a quantitative effort to understanding past trends in Personnel Support Detachment (PSD... quantitative effort to understanding past trends in Personnel Support Detachment (PSD) and Customer Service Desk (CSD) transactions that may aid manpower...56 xiv THIS PAGE INTENTIONALLY LEFT BLANK xv LIST OF TABLES Table 1. Final Dataset Column Names and Descriptions

Frequency-Response Identification of XV-15 Tilt-Rotor Aircraft Dynamics.

DTIC Science & Technology

1987-05-01

and the rotor interference with the other 2 aircraft elements are modeled in detail. Also modeled are numerous sub- system dynamics such as the engine ...scope and quality, as a dissertation for the degree of Doctor of Philosophy. (Electrical Engineering ) Approved for the University Com ittee on Graduate...Spectral Relationships .................................. 143 B.2 Numerical Study......................................... 149 B.3 Conclusions of

Rapid Airlift Planning for Amphibious-Ready Groups

DTIC Science & Technology

2015-09-01

SUBJECT TERMS vehicle routing problem , vehicle synchronization, military airlift, passenger and cargo transport, helicopter routing 15. NUMBER OF PAGES...Southern California VBA Visual Basic for Applications VRP Vehicle Routing Problem xiv THIS PAGE INTENTIONALLY LEFT BLANK xv EXECUTIVE...Depending on the ICAO+ to ICAO+ distance-over-the-water (DOW), aircraft may require section support. DOW is the great- circle distance travelled

Effects of Activation on Selected Marine Corps Reserve Prior Service Enlisted Continuation Rates in the Post-9/11 Era

DTIC Science & Technology

2010-03-01

64 C. THEORETICAL FRAMEWORK ...xiv THIS PAGE INTENTIONALLY LEFT BLANK xv LIST OF ACRONYMS AND ABBREVIATIONS AC Active Component ACOL Annualized Cost of Leaving ADOS Active...percentage point below this mark when calculating active duty operation support ( ADOS ) adjustments required by U.S. Code 10, § 115. Missing end strength

40 CFR 721.5185 - Morpholine, 4-(1-oxo-2-propenyl)-.

Code of Federal Regulations, 2010 CFR

2010-07-01

...), (a)(5)(i), (a)(5)(ii), (a)(5)(iii), (a)(5)(xii), (a)(5)(xiii), (a)(5)(xiv), (a)(5)(xv), (a)(6)(v), (b) (concentration set at 0. 1 percent), and (c). The following material has been tested in accordance with the American Society for Testing Materials (ASTM) F739 method and found by EPA to satisfy the consent order's...

First-Principles Molecular Dynamics Simulations of NaCl in Water: Performance of Advanced Exchange-Correlation Approximations in Density Functional Theory

NASA Astrophysics Data System (ADS)

Yao, Yi; Kanai, Yosuke

Our ability to correctly model the association of oppositely charged ions in water is fundamental in physical chemistry and essential to various technological and biological applications of molecular dynamics (MD) simulations. MD simulations using classical force fields often show strong clustering of NaCl in the aqueous ionic solutions as a consequence of a deep contact pair minimum in the potential of mean force (PMF) curve. First-Principles Molecular Dynamics (FPMD) based on Density functional theory (DFT) with the popular PBE exchange-correlation approximation, on the other hand, show a different result with a shallow contact pair minimum in the PMF. We employed two of most promising exchange-correlation approximations, ωB97xv by Mardiorossian and Head-Gordon and SCAN by Sun, Ruzsinszky and Perdew, to examine the PMF using FPMD simulations. ωB97xv is highly empirically and optimized in the space of range-separated hybrid functional with a dispersion correction while SCAN is the most recent meta-GGA functional that is constructed by satisfying various known conditions in well-defined physical limits. We will discuss our findings for PMF, charge transfer, water dipoles, etc.

QTL Dissection of Lag Phase in Wine Fermentation Reveals a New Translocation Responsible for Saccharomyces cerevisiae Adaptation to Sulfite

PubMed Central

Zimmer, Adrien; Durand, Cécile; Loira, Nicolás; Durrens, Pascal; Sherman, David James; Marullo, Philippe

2014-01-01

Quantitative genetics and QTL mapping are efficient strategies for deciphering the genetic polymorphisms that explain the phenotypic differences of individuals within the same species. Since a decade, this approach has been applied to eukaryotic microbes such as Saccharomyces cerevisiae in order to find natural genetic variations conferring adaptation of individuals to their environment. In this work, a QTL responsible for lag phase duration in the alcoholic fermentation of grape juice was dissected by reciprocal hemizygosity analysis. After invalidating the effect of some candidate genes, a chromosomal translocation affecting the lag phase was brought to light using de novo assembly of parental genomes. This newly described translocation (XV-t-XVI) involves the promoter region of ADH1 and the gene SSU1 and confers an increased expression of the sulfite pump during the first hours of alcoholic fermentation. This translocation constitutes another adaptation route of wine yeast to sulfites in addition to the translocation VIII-t-XVI previously described. A population survey of both translocation forms in a panel of domesticated yeast strains suggests that the translocation XV-t-XVI has been empirically selected by human activity. PMID:24489712

Observation and numerical modeling of chromospheric evaporation during the impulsive phase of a solar flare

DOE Office of Scientific and Technical Information (OSTI.GOV)

Imada, Shinsuke, E-mail: shinimada@stelab.nagoya-u.ac.jp; Murakami, Izumi, E-mail: murakami.izumi@nifs.ac.jp; Department of Fusion Science, SOKENDAI

2015-10-15

We have studied the chromospheric evaporation flow during the impulsive phase of the flare by using the Hinode/EUV Imaging Spectrometer observation and 1D hydrodynamic numerical simulation coupled to the time-dependent ionization. The observation clearly shows that the strong redshift can be observed at the base of the flaring loop only during the impulsive phase. We performed two different numerical simulations to reproduce the strong downflows in FeXII and FeXV during the impulsive phase. By changing the thermal conduction coefficient, we carried out the numerical calculation of chromospheric evaporation in the thermal conduction dominant regime (conductivity coefficient κ{sub 0} = classical value) andmore » the enthalpy flux dominant regime (κ{sub 0} = 0.1 × classical value). The chromospheric evaporation calculation in the enthalpy flux dominant regime could reproduce the strong redshift at the base of the flare during the impulsive phase. This result might indicate that the thermal conduction can be strongly suppressed in some cases of flare. We also find that time-dependent ionization effect is important to reproduce the strong downflows in Fe XII and Fe XV.« less

Securing, Stabilizing, and Rebuilding Iraq: Key Issues for Congressional Oversight

DTIC Science & Technology

2007-01-01

Been Constrained by Security, Management , and Funding Challenges 72 U.S. Military Readiness 79 Enclosure XII: Extended Operations Have Had...Forces Have Resulted in Shortages of Critical Items 92 Improving Acquisition Outcomes 97 Enclosure XV: DOD Needs to Improve Its Capacity to Manage ...International Monetary Fund IRMO Iraq Reconstruction Management Office IRRF Iraqi Relief and Reconstruction Fund ISF Iraqi security forces ISFF

Proceedings, XV U.S. Department of Agriculture interagency research forum on gypsy moth and other invasive species 2004

Treesearch

Kurt W., ed. Gottschalk

2005-01-01

Contains 61 abstracts and papers of oral and poster presentations on gypsy moth and other invasive species biology, molecular biology, ecology, impacts, and management presented at the annual U. S. Department of Agriculture Interagency Research Forum on Gypsy Moth and Other Invasive Species. The online version contains two additional papers that were not available at...

AUTOMOTIVE DIESEL MAINTENACE 1. UNIT XV, I--MAINTAINING THE COOLING SYSTEM, CUMMINS DIESEL ENGINE, I--UNIT INSTALLATION--TRANSMISSION.

ERIC Educational Resources Information Center

Human Engineering Inst., Cleveland, OH.

THIS MODULE OF A 30-MODULE COURSE IS DESIGNED TO DEVELOP AN UNDERSTANDING OF THE FUNCTION AND MAINTENANCE OF THE DIESEL ENGINE COOLING SYSTEM AND THE PROCEDURES FOR TRANSMISSION INSTALLATION. TOPICS ARE (1) IMPORTANCE OF THE COOLING SYSTEM, (2) COOLING SYSTEM COMPONENTS, (3) EVALUATING COOLING SYSTEM FAILURES, (4) CARING FOR THE COOLING SYSTEM,…

50 CFR 23.89 - What are the criteria for listing species in Appendix I or II?

Code of Federal Regulations, 2011 CFR

2011-10-01

... ENDANGERED SPECIES OF WILD FAUNA AND FLORA (CITES) Lists of Species § 23.89 What are the criteria for listing species in Appendix I or II? (a) Purpose. Article XV of the Treaty sets out the procedures for amending... 50 Wildlife and Fisheries 8 2011-10-01 2011-10-01 false What are the criteria for listing species...

50 CFR 23.89 - What are the criteria for listing species in Appendix I or II?

Code of Federal Regulations, 2013 CFR

2013-10-01

... ENDANGERED SPECIES OF WILD FAUNA AND FLORA (CITES) Lists of Species § 23.89 What are the criteria for listing species in Appendix I or II? (a) Purpose. Article XV of the Treaty sets out the procedures for amending... 50 Wildlife and Fisheries 9 2013-10-01 2013-10-01 false What are the criteria for listing species...

50 CFR 23.89 - What are the criteria for listing species in Appendix I or II?

Code of Federal Regulations, 2012 CFR

2012-10-01

... ENDANGERED SPECIES OF WILD FAUNA AND FLORA (CITES) Lists of Species § 23.89 What are the criteria for listing species in Appendix I or II? (a) Purpose. Article XV of the Treaty sets out the procedures for amending... 50 Wildlife and Fisheries 9 2012-10-01 2012-10-01 false What are the criteria for listing species...

50 CFR 23.89 - What are the criteria for listing species in Appendix I or II?

Code of Federal Regulations, 2010 CFR

2010-10-01

... ENDANGERED SPECIES OF WILD FAUNA AND FLORA (CITES) Lists of Species § 23.89 What are the criteria for listing species in Appendix I or II? (a) Purpose. Article XV of the Treaty sets out the procedures for amending... 50 Wildlife and Fisheries 6 2010-10-01 2010-10-01 false What are the criteria for listing species...

Measuring Success in Populace and Resources Control

DTIC Science & Technology

1967-05-29

dealt with if democracy is to survive. Military strategists should take notice of the warning of the noted political scientist, Hannah Arendt , who...revolutionary conflict: a Harold K. Johnson, "Landpower Missions Unlimited," Army, XV (November, 1964), 41-42. 2 Hannah Arendt , On Revolution (New...Government Printing Office, 1963. Books Arendt , Hannah . On Revolution. New York: Viking Press, 1963. Baclagon, Uldanico S. Lessons Prom the Huk Campaign

STARE CubeSat Communications Testing, Simulation and Analysis

DTIC Science & Technology

2012-09-01

26  Figure 24.  STK MC3 Ground Station Locations ................................................... 31  x THIS PAGE INTENTIONALLY LEFT BLANK xi...Refinement of Ephemeris STK Satellite Tool Kit VPN Virtual Private Network xiv THIS PAGE INTENTIONALLY LEFT BLANK xv ACKNOWLEDGMENTS This...the radio itself. Using a signal attenuator to decrease signal strength by 10 dB increments, and a spectrum analyzer to see a visual representation

The Contract Management Body of Knowledge: A Comparison of Contracting Competencies

DTIC Science & Technology

2013-12-01

SME subject matter expert SOW statement of work TINA Truth in Negotiations Act UCC uniform commercial code WBS work breakdown structure xv...documents whose terms and condition are legally enforceable. Sources of law and guidance covered include the uniform commercial code ( UCC ), Federal...contracting including the uniform commercial code ( UCC ), Federal Acquisition Regulation (FAR), as well as various other laws pertaining to both

77 FR 42032 - Self-Regulatory Organizations; The NASDAQ Stock Market LLC; Notice of Filing and Immediate...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-17

... Securities Exchange Act of 1934 (``Act''),\\1\\ and Rule 19b-4 \\2\\ thereunder, notice is hereby given that on... solicit comments on the proposed rule change from interested persons. \\1\\ 15 U.S.C. 78s(b)(1). \\2\\ 17 CFR... Change The NASDAQ Stock Market LLC proposes to modify Chapter XV, Section 2, governing pricing for NASDAQ...

77 FR 68879 - Self-Regulatory Organizations; NASDAQ OMX BX, Inc.; Notice of Filing and Immediate Effectiveness...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-16

... 1934 (``Act''),\\1\\ and Rule 19b-4 thereunder,\\2\\ notice is hereby given that on October 31, 2012... proposed rule change from interested persons. \\1\\ 15 U.S.C. 78s(b)(1). \\2\\ 17 CFR 240.19b-4. I. Self... proposes to amend Chapter XV, Section 2 entitled ``BX Options Market--Fees and Rebates.'' Specifically, the...

Improving Maritime Domain Awareness Using Neural Networks for Target of Interest Classification

DTIC Science & Technology

2015-03-01

spreading SCG scaled conjugate gradient xv THIS PAGE INTENTIONALLY LEFT BLANK xvi EXECUTIVE SUMMARY The research detailed in this thesis is a...algorithms were explored for training the neural networks: resilient backpropagation (RP) and scaled conjugate gradient backpropagation ( SCG ). The...results of the neural network training performance are presented using mean squared error convergence plots. In all implementations, the SCG learning

Recommendations and Proposed Strategic Plan: Water Sector Decontamination Priorities

DTIC Science & Technology

2008-10-01

safety and health issues of the utility personnel that may be exposed to treatment processes down stream from the treatment Conducting research on...Government Coordinating Council (GCC). This letter serves as our official transmittal of the Work Group’s final product . As the Co-Chairs...Priorities Page xv LIST OF ACRONYMS ACEIH American Council of Education on Industrial Hygiene AMWA Association of Metropolitan Water Agencies ANSI

Proceedings of the Annual Meeting of the Association for Education in Journalism and Mass Communication (75th, Montreal, Quebec, Canada, August 5-8, 1992). Part XV: The Newspaper Business.

ERIC Educational Resources Information Center

Seneca Nation Educational Foundation, Salamanca, NY.

The Newspaper Business section of the proceedings contains the following 13 papers: "Daily Newspaper Market Structure, Concentration and Competition" (Stephen Lacy and Lucinda Davenport); "Who's Making the News? Changing Demographics of Newspaper Newsrooms" (Ted Pease); "Race, Gender and White Male Backlash in Newspaper…

22 CFR 124.15 - Special Export Controls for Defense Articles and Defense Services Controlled under Category XV...

Code of Federal Regulations, 2012 CFR

2012-04-01

... country (including a post liftoff failure to reach proper orbit)— (1) The activities of U.S. persons or... must identify the U.S. Government officials familiar with the preparation of the draft TTCPs. The TTCP must require any U.S. person or entity involved in the export to notify the Department of Defense in...

22 CFR 124.15 - Special Export Controls for Defense Articles and Defense Services Controlled under Category XV...

Code of Federal Regulations, 2011 CFR

2011-04-01

... country (including a post liftoff failure to reach proper orbit)— (1) The activities of U.S. persons or... must identify the U.S. Government officials familiar with the preparation of the draft TTCPs. The TTCP must require any U.S. person or entity involved in the export to notify the Department of Defense in...

22 CFR 124.15 - Special Export Controls for Defense Articles and Defense Services Controlled under Category XV...

Code of Federal Regulations, 2013 CFR

2013-04-01

... country (including a post liftoff failure to reach proper orbit)— (1) The activities of U.S. persons or... must identify the U.S. Government officials familiar with the preparation of the draft TTCPs. The TTCP must require any U.S. person or entity involved in the export to notify the Department of Defense in...

22 CFR 124.15 - Special Export Controls for Defense Articles and Defense Services Controlled under Category XV...

Code of Federal Regulations, 2014 CFR

2014-04-01

... country (including a post liftoff failure to reach proper orbit)— (1) The activities of U.S. persons or... must identify the U.S. Government officials familiar with the preparation of the draft TTCPs. The TTCP must require any U.S. person or entity involved in the export to notify the Department of Defense in...

22 CFR 124.15 - Special Export Controls for Defense Articles and Defense Services Controlled under Category XV...

Code of Federal Regulations, 2010 CFR

2010-04-01

... country (including a post liftoff failure to reach proper orbit)— (1) The activities of U.S. persons or... must identify the U.S. Government officials familiar with the preparation of the draft TTCPs. The TTCP must require any U.S. person or entity involved in the export to notify the Department of Defense in...

Labor Mobilization Project (1980).

DTIC Science & Technology

1980-05-15

inventory was compiled by the National Defense Transportation Association for King and Snohomish Counties under a subcontract with the King County...Council, AFL-CIO, to the rank and .-- Executive Summary Page xv file membership. A resolution was presented at the National Building Trades Convention in...and planning, along with operational plans for all other types of emergencies. 3"Comprehensive Emergency Management--A Governors Guide" by National

Megacities and the Proposed Urban Intervention Model

DTIC Science & Technology

2016-06-01

WFP World Food Programme WHO World Health Organization xv ACKNOWLEDGMENTS We would first like to thank our advisors, Dr. Heather Gregg and Dr...resources such as fresh food and potable water has placed many of the urban poor on the brink of starvation.8 Increasing traffic has caused widespread...effective distribution of resources and services.9 Governments also struggle with waste disposal, which has contaminated already strained water

78 FR 1293 - Self-Regulatory Organizations; NASDAQ OMX BX, Inc.; Notice of Filing and Immediate Effectiveness...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-08

... Relating to Non-Penny Pilot Options Fees January 2, 2013. Pursuant to Section 19(b)(1) of the Securities...--Fees and Rebates'' to adopt fees and rebates for Non-Penny Pilot Options.\\3\\ \\3\\ Non-Penny Pilot refers... XV, Section 2(1) to adopt fees and rebates for Customers, BX Options Market Makers \\4\\ and Non...

76 FR 29000 - Extension and Redesignation of Haiti for Temporary Protected Status

Federal Register 2010, 2011, 2012, 2013, 2014

2011-05-19

... earthquake that occurred January 12, 2010. See 75 FR 3476; see also INA section 244(b)(1)(C), 8 U.S.C. 1254a... deemed to refer to the Secretary'' of Homeland Security. See 6 U.S.C. 557 (2003) (codifying HSA, tit. XV... designated for TPS to determine whether the conditions for the TPS designation continue to be met. See INA...

Inside English: Journal of the English Council of California Two-Year Colleges; Vol. XV, Nos. 1-4, October 1987, December 1987, March 1988, and May 1988.

ERIC Educational Resources Information Center

Woodruff, Barbara Bilson, Ed.

1988-01-01

Designed primarily for English faculty at community colleges in California, "Inside English" includes articles on instructional innovations in teaching remedial writing, literature courses, and freshman composition, and on major curricular, administrative, and employment issues in the field. The first issue of volume 15 focuses primarily on…

75 FR 14359 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-25

.... 0910131362-0087-02] RIN 0648-XV45 Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical... is reopening directed fishing for pollock in Statistical Area 630 of the Gulf of Alaska (GOA) for 72... (TAC) of pollock in Statistical Area 630 of the GOA. DATES: Effective 1200 hrs, Alaska local time (A.l...

Field-Deployable Video Cloud Solution

DTIC Science & Technology

2016-03-01

78 2. Shipboard Server or Video Cloud System .......................................79 3. 4G LTE and Wi-Fi...local area network LED light emitting diode Li-ion lithium ion LTE long term evolution Mbps mega-bits per second MBps mega-bytes per second xv...restrictions on distribution. File size is dependent on both bit rate and content length. Bit rate is a value measured in bits per second (bps) and is

NASA Aircraft on ramp (Aerial view) Sides: (L) QSRA (R) C-8A AWJSRA - Back to Front: CV-990 (711)

NASA Technical Reports Server (NTRS)

1981-01-01

NASA Aircraft on ramp (Aerial view) Sides: (L) QSRA (R) C-8A AWJSRA - Back to Front: CV-990 (711) C-141 KAO, CV-990 (712) Galileo, T-38, YO-3A, Lear Jet, X-14, U-2, OH-6, CH-47, SH-3G, RSRA, AH-1G, XV-15, UH-1H

Shear bond strength of different types of adhesive systems to dentin and enamel of deciduous teeth in vitro.

PubMed

Kensche, A; Dähne, F; Wagenschwanz, C; Richter, G; Viergutz, G; Hannig, C

2016-05-01

The present study aimed to evaluate the suitability of self-etch adhesives for restoration of deciduous teeth compared with etch and rinse approaches. One hundred twenty primary teeth were divided into five groups, each being assigned to an adhesive system. Self-etch adhesives XenoV (XV) and Clearfil S(3) Bond (CB), Prime&Bond NT with (PBE)/without preliminary etching (PBN), and Optibond FL (OBFL) as an etch and rinse system were included. Enamel and dentin specimens were prepared (n = 36/group), adhesives applied, and compomer cylinders polymerized. After 24-h storage in 37 °C distilled water and thermo-cycling (1440 cycles, 5/55 °C, 27 s), shear bond tests and fracture mode classification based on SEM investigation were performed. Statistical analysis involved ANOVA and Scheffé procedure with Bonferroni-Holm correction (p ≤ 0.005). High shear bond strengths to primary enamel were determined for PBE (mean [M] = 22.48 ± 7.7 MPa) > OBFL (M = 19.06 ± 5.62 MPa) > CB (M = 17.6 ± 6.55 MPa), and XV (M = 16.85 ± 5.38 MPa) and PBN (M = 8.26 ± 4.46 MPa) formed significantly less reliable enamel-resin interfaces (p ≤ 0.005). PBE generated the highest bond strength on primary dentin (M = 21.97 ± 8.02 MPa); significantly lower values were measured for XV (M = 13.44 ± 5.43 MPa) and OBFL (M = 12.92 ± 4.31 MPa) (p ≤ 0.005). Adhesives requiring preliminary etching ensure optimal bond strength to primary enamel. If separate etching is to be avoided, selected self-etch adhesives obtain acceptable shear bond values on primary enamel and dentin. The treatment of pediatric patients presents a great challenge in dental practice, and optimization of treatment processes is important.

Conceptual Design of a Tiltrotor Transport Flight Deck

NASA Technical Reports Server (NTRS)

Decker, William A.; Dugan, Daniel C.; Simmons, Rickey C.; Tucker, George E.; Aiken, Edwin W. (Technical Monitor)

1995-01-01

A tiltrotor transport has considerable potential as a regional transport, increasing the air transportation system capacity by off-loading conventional runways. Such an aircraft will have a flight deck suited to its air transportation task and adapted to unique urban vertiport operating requirements. Such operations are likely to involve steep, slow instrument approaches for vertical and extremely short rolling take-offs and landings. While much of a tiltrotor transport's operations will be in common with commercial fixed-wing operations, terminal area operations will impose alternative flight deck design solutions. Control systems, displays and guidance, and control inceptors must be tailored to both routine and emergency vertical flight operations. This paper will survey recent experience with flight deck design elements suitable to a tiltrotor transport and will propose a conceptual cockpit design for such an aircraft. A series of piloted simulations using the NASA Ames Vertical Motion Simulator have investigated cockpit design elements and operating requirements for tiltrotor transports operating into urban vertiports. These experiments have identified the need for a flight director or equivalent display guidance for steep final approaches. A flight path vector display format has proven successful for guiding tiltrotor transport terminal area operations. Experience with a Head-Up Display points to the need for a bottom-mounted display device to maximize its utility on steep final approach paths. Configuration control (flap setting and nacelle angle) requires appropriate augmentation and tailoring for civil transport operations, flown to an airline transport pilot instrument flight rules (ATP-IFR) standard. The simulation experiments also identified one thrust control lever geometry as inappropriate to the task and found at least acceptable results with the vertical thrust control lever of the XV-15. In addition to the thrust controller, the attitude control of a tiltrotor transport may be effected through an inceptor other than the current center sticks in the XV-15 and V-22. Simulation and flight investigations of side-stick control inceptors for rotorcraft, augmented by a 1985 flight test of a side-stick controller in the XV-15 suggest the potential of such a device in a transport cockpit.

Comparison of 133 xenon ventilation equilibrium scan (XV) and 99m technetium transmission (TT) scan for use in regional lung analysis by 2D gamma scintigraphy in healthy and cystic fibrosis lungs.

PubMed

Zeman, Kirby L; Wu, Jihong; Donaldson, Scott H; Bennett, William D

2013-04-01

Quantification of particle deposition in the lung by gamma scintigraphy requires a reference image for location of regions of interest (ROIs) and normalization to lung thickness. In various laboratories, the reference image is made by a transmission scan ((57)Co or (99m)Tc) or gas ventilation scan ((133)Xe or (81)Kr). There has not been a direct comparison of measures from the two methods. We compared (99m)Tc transmission scans to (133)Xe equilibrium ventilation scans as reference images for 38 healthy subjects and 14 cystic fibrosis (CF) patients for their effects on measures of regional particle deposition: the central-to-peripheral ratio of lung counts (C/P); and ROI area versus forced vital capacity. Whole right lung ROI was based on either an isocontour threshold of three times the soft tissue transmission (TT) or a threshold of 20% of peak xenon ventilation counts (XV). We used a central ROI drawn to 50% of height and of width of the whole right lung ROI and placed along the left lung margin and centered vertically. In general, the correlation of normalized C/P (nC/P) between the two methods was strong. However, the value of nC/P was significantly smaller for the XV method than the TT method. Regression equations for the relationship of nC/P between the two methods were, for healthy subjects, y=0.75x+0.61, R(2)=0.64 using rectangular ROIs and y=0.76x+0.45, R(2)=0.66 using isocontour ROIs; and for CF patients, y=0.94x+0.46, R(2)=0.43 and y=0.85x+0.42, R(2)=0.41, respectively. (1) A transmission scan with an isocontour outline in combination with a rectangular central region to define the lung borders may be more useful than a ventilation scan. (2) Close correlation of nC/Ps measured by transmission or gas ventilation should allow confident comparison of values determined by the two methods.

Analysis of variation in calibration curves for Kodak XV radiographic film using model-based parameters.

PubMed

Hsu, Shu-Hui; Kulasekere, Ravi; Roberson, Peter L

2010-08-05

Film calibration is time-consuming work when dose accuracy is essential while working in a range of photon scatter environments. This study uses the single-target single-hit model of film response to fit the calibration curves as a function of calibration method, processor condition, field size and depth. Kodak XV film was irradiated perpendicular to the beam axis in a solid water phantom. Standard calibration films (one dose point per film) were irradiated at 90 cm source-to-surface distance (SSD) for various doses (16-128 cGy), depths (0.2, 0.5, 1.5, 5, 10 cm) and field sizes (5 × 5, 10 × 10 and 20 × 20 cm²). The 8-field calibration method (eight dose points per film) was used as a reference for each experiment, taken at 95 cm SSD and 5 cm depth. The delivered doses were measured using an Attix parallel plate chamber for improved accuracy of dose estimation in the buildup region. Three fitting methods with one to three dose points per calibration curve were investigated for the field sizes of 5 × 5, 10 × 10 and 20 × 20 cm². The inter-day variation of model parameters (background, saturation and slope) were 1.8%, 5.7%, and 7.7% (1 σ) using the 8-field method. The saturation parameter ratio of standard to 8-field curves was 1.083 ± 0.005. The slope parameter ratio of standard to 8-field curves ranged from 0.99 to 1.05, depending on field size and depth. The slope parameter ratio decreases with increasing depth below 0.5 cm for the three field sizes. It increases with increasing depths above 0.5 cm. A calibration curve with one to three dose points fitted with the model is possible with 2% accuracy in film dosimetry for various irradiation conditions. The proposed fitting methods may reduce workload while providing energy dependence correction in radiographic film dosimetry. This study is limited to radiographic XV film with a Lumisys scanner.

Research In Nonlinear Flight Control for Tiltrotor Aircraft Operating in the Terminal Area

NASA Technical Reports Server (NTRS)

Calise, A. J.; Rysdyk, R.

1996-01-01

The research during the first year of the effort focused on the implementation of the recently developed combination of neural net work adaptive control and feedback linearization. At the core of this research is the comprehensive simulation code Generic Tiltrotor Simulator (GTRS) of the XV-15 tilt rotor aircraft. For this research the GTRS code has been ported to a Fortran environment for use on PC. The emphasis of the research is on terminal area approach procedures, including conversion from aircraft to helicopter configuration. This report focuses on the longitudinal control which is the more challenging case for augmentation. Therefore, an attitude command attitude hold (ACAH) control augmentation is considered which is typically used for the pitch channel during approach procedures. To evaluate the performance of the neural network adaptive control architecture it was necessary to develop a set of low order pilot models capable of performing such tasks as, follow desired altitude profiles, follow desired speed profiles, operate on both sides of powercurve, convert, including flaps as well as mastangle changes, operate with different stability and control augmentation system (SCAS) modes. The pilot models are divided in two sets, one for the backside of the powercurve and one for the frontside. These two sets are linearly blended with speed. The mastangle is also scheduled with speed. Different aspects of the proposed architecture for the neural network (NNW) augmented model inversion were also demonstrated. The demonstration involved implementation of a NNW architecture using linearized models from GTRS, including rotor states, to represent the XV-15 at various operating points. The dynamics used for the model inversion were based on the XV-15 operating at 30 Kts, with residualized rotor dynamics, and not including cross coupling between translational and rotational states. The neural network demonstrated ACAH control under various circumstances. Future efforts will include the implementation into the Fortran environment of GTRS, including pilot modeling and NNW augmentation for the lateral channels. These efforts should lead to the development of architectures that will provide for fully automated approach, using similar strategies.

USBeSafe: Applying One Class SVM for Effective USB Event Anomaly Detection

DTIC Science & Technology

2016-04-25

Directory and File Descriptions . . . . . . . . . . . . . . . . . 64 Bibliography 69 xv List of Figures 2.1 USB Descriptor Hierarchy...countless. One study performed in 2011 found that, in only the two year span prior, 50% of orga- nizations, both public and private, had sensitive...host machine. While ex - isting solutions to the rogue-TD attack paradigm require much in the way of access control maintenance and certificate management

LUNAR SITE MAP (APOLLO XV) - MSC

NASA Image and Video Library

1971-07-16

S71-40085 (July 1971) --- An enlarged Lunar Orbiter photograph of the Apollo 15 landing area in the Hadley-Apennine region on the nearside of the moon. The overlay indicates the location of the numerous informally-named surface features. These names will facilitate understanding the verbal descriptions from the astronauts during their lunar surface extravehicular activity (EVA). This is an August 1967, Lunar Orbiter V photograph of Site 26.1.

77 FR 29633 - Alta Wind VII, LLC, Alta Wind IX, LLC, Alta Wind X, LLC, Alta Wind XI, LLC, Alta Wind XII, LLC...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-18

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. EL12-68-000] Alta Wind VII, LLC, Alta Wind IX, LLC, Alta Wind X, LLC, Alta Wind XI, LLC, Alta Wind XII, LLC, Alta Wind XIII, LLC, Alta Wind XIV, LLC, Alta Wind XV, LLC, Alta Windpower Development, LLC, TGP Development Company, LLC...

Micro Navigator (MICRON) Phase 2A. Volume 1. Technical Report

DTIC Science & Technology

1976-02-01

350 6-56. AMESGA Test Log Summary.................................. 351 xv ’I LIST OF TABLES (Cant) Tables Page 6-57. MESGA Calibration Table...of Module Slc xs Failure Rate Normalized to the Baseline Estimates 178 6.2.3.4 Packaging Alternative Studies Cost of ownership evaluations were...130 were step-heated and monitored. Significant outgas - sing of non-getterable gases was detected. These observations raised a serious question as to

Visible Vertical Cavity Surface Emitting Lasers

DTIC Science & Technology

1993-01-01

circular output beams are easily coupled into optical fibers, or focused or collimated with microlenslets. The VCSELs can be tested individually at the wafer...semiconductor visible VCSEL . Also shown is the DBR reflectance and reflectivity phase , as seen from the optical cavity, and the electric field intensity ...76 xv Figure page 2.32 Calculated electric field intensity for the example IR and visible VCSELs shown in Fig. 2.31 ........................... 79

Low-Thrust Bipropellant Engine Technology.

DTIC Science & Technology

1980-08-01

Non-Destructive Testing OD Outside Diameter xv tr. GLOSSARY (cont.J ODE One Dimensional Equilibrium ODK One Dimensional Kinetics Pc Thrust Chamber...performance (280 sec steady- state, 220 sec pulsing) have not yet been collectively achieved, but should be obtainable with further development activities...even at nozzle area ratios up to 400:1. The influence of nozzle kinetics (i.e., equilibrium versus frozen flow and ODK ) are noted to be a much more

On Algorithms for Nonlinear Minimax and Min-Max-Min Problems and Their Efficiency

DTIC Science & Technology

2011-03-01

dissertation is complete, I can finally stay home after dinner to play Wii with you. LET’S GO Mario and Yellow Mushroom... xv THIS PAGE INTENTIONALLY... balance the accuracy of the approximation with problem ill-conditioning. The sim- plest smoothing algorithm creates an accurate smooth approximating...sizing in electronic circuit boards (Chen & Fan, 1998), obstacle avoidance for robots (Kirjner- Neto & Polak, 1998), optimal design centering

The Army Ethic

DTIC Science & Technology

2015-06-12

12 Anthony Hartle, Moral Issues in Military Decision Making, 2nd ed. (Lawrence, KS: University of Kansas Press, 2004), 67. 13 Ibid. 14 Center...Theory of Morality , xv. 31 Hartle, Moral Issues , 82. 15 criticisms where CAPE has already made changes.32 Due to the academic constraints, however...21. 43 U.S. Constitution, article 3, section 2. 44 Hartle, Moral Issues , 3-6; Hartle presents two case studies (from Vietnam and WWII) on how

Analysis of Contract Source Selection Strategy

DTIC Science & Technology

2015-06-01

for Default TINA Truth in Negotiation Act USD (AT&L) Under Secretary of Defense for Acquisition, Technology, and Logistic xv...project to my beautiful and supportive wife, Amy, and my daughters, Peyton and Claire. Thank you for all your unconditional love and support these past...to his unconditional love. I would like to thank my mom, Saraswati, and my dad, Khilendra, for their support and patience during this time. I would

Achieving Information Superiority Using Hastily Formed Networks and Emerging Technologies for the Royal Thai Armed Forces Counterinsurgency Operations in Southern Thailand

DTIC Science & Technology

2014-03-01

38 2. Mobile Ad Hoc Networks ..................................................................39 3. Wireless Ad Hoc Sensor Networks...59 Figure 32. RENEWS with WiMAX and Wave Relay AP at C-IED Site.............................59 Figure 33. RENEWS Wind Turbine and Solar Panels at Hat...worldwide interoperability for microwave access WSN wireless sensor network xv ACKNOWLEDGMENTS We would like to express our sincerest gratitude

Command and Control: The Literature and Commentaries

DTIC Science & Technology

1993-09-01

orgeiiizational and intonination decisions. Prioi org4anizational decisions have established a chain of commnand for thle execution of- operational...to be discounted by sentiors inl thle chain of’ cointmnad, who would like to assumte that decisionls that are perfectly cleaýr ill thicir own muinds...Executive Functions." Chapter XV, The Fu~nctions of the IExecuth)ve. Cambiridge, MA: Harvard University Press, 195 1. Suply )emenatwy Reading~s on

Orbit Determination Using Vinti’s Solution

DTIC Science & Technology

2016-09-15

Surveillance Network STK Systems Tool Kit TBP Two Body Problem TLE Two-line Element Set xv Acronym Definition UKF Unscented Kalman Filter WPAFB Wright...simplicity, stability, and speed. On the other hand, Kalman filters would be best suited for sequential estimation of stochastic or random components of a...be likened to how an Unscented Kalman Filter samples a system’s nonlinearities directly, avoiding linearizing the dynamics in the partials matrices

An Approach to the Management of Hazardous Materials.

DTIC Science & Technology

1981-09-01

fluoride carbon disulfide carbon monoxide hydrochloric acid hydrogen sulfide acetone cyanohydrin phosgene Group XII: Poison B - Meeflaneous a) Gases...b) Liquids sulfur dioxide bromine chlorine boron trifluoride Group XIII: Poison C Group XIV: Poison D Liquid Gas tetraethyl lead fluorine Group XV...with a high and o Nitric acid leaks from a 5,000 gallon storage tank In a growing concentration of electronics industries. Over plant one night and

MILSCAP: Military Standard Contract Administration Procedures

DTIC Science & Technology

1993-02-01

Materiel Command, use the Commodity Command Standard System (CCSS) and issue Procurement Automated Document and Distribution System ( PADDS ) generated ...i Table of Contents Acronyms and Abbreviations xi References xv Definitions and Terms xvii CHAPTER 1 - ADMINISTRATIVE AND GENERAL A. Authority 1-1 B...2 - SYSTM CONCEPT A. General 2-1 B. Provisions 2-1 C. Overall System Description 2-2 D. Relationship of Certain FAR and DFARS Provisions to MILSCAP 2

77 FR 10794 - Self-Regulatory Organizations; The NASDAQ Stock Market LLC; Notice of Filing and Immediate...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-02-23

... Securities Exchange Act of 1934 (``Act''),\\1\\ and Rule 19b-4 thereunder,\\2\\ notice is hereby given that on... on the proposed rule change from interested persons. \\1\\ 15 U.S.C. 78s(b)(1). \\2\\ 17 CFR 240.19b-4... Change The NASDAQ Stock Market LLC proposes to modify Chapter XV, Section 2, governing pricing for NASDAQ...

Air Reserve Component: Key to the Air Force’s Future

DTIC Science & Technology

2013-03-01

REPORT TYPE STRATEGY RESEARCH PROJECT .33 3. DATES COVERED (From - To) 4. TITLE AND SUBTITLE Air Reserve Component: Key to the Air Force’s...b. ABSTRACT UU c. THIS PAGE UU 19b. TELEPHONE NUMBER (Include area code) USAWC STRATEGY RESEARCH PROJECT...RAND Corporation, Prepared for the Office of Secretary of Defense, 2008), XV. 64 T.X. Hammes, "Offshore Control: A Proposed Strategy ," Infinity

Workload Transition: Implications for Individual and Team Performance

DTIC Science & Technology

1993-01-01

a hrlf second) if they are motivated to do so, and they will choose one strategy or the other on the basis of the probability that it will best serve...Arousal, 106 Conclusion, 107 Mediating Effects, 107 Coping with Stress, 108 DesiZ.n Solutions. 108 Strategies , 109 Training, 109 Team Models: Implications...214 Cognitive Switching, 214 Strategy Switching, 215 Task Switching. 216 Implications for Workload Transition, 219 CONTENTS XV

In Situ Bioremediation of Perchlorate in Vadose Zone Soil Using Gaseous Electron Donors

DTIC Science & Technology

2009-11-01

National Aeronautics and Space Administration ND Non-detect NDMA N-Nitrosodimethylamine No. Number NO3- Nitrate OD Outside diameter O&M...Nitrite xv • Selenate • Arsenate • Chromate and dichromate (i.e., hexavalent chromium) • Uranylate • Pertechnetate • N-Nitrosodimethylamine ( NDMA ...Arsenate • Chromate and dichromate (i.e., hexavalent chromium) • Uranylate • Pertechnetate • N-Nitrosodimethylamine ( NDMA ) • Trichloroethene (TCE

Solid State Research

DTIC Science & Technology

2005-06-21

266-nm, l-,W, 500-ps laser pulse from a frequency-quadrupled Nd:YAG microchip laser operating at 10 kHz. Fluorescence and elastic scattering from the...on Solid State Research xv Organization xxiii QUANTUM ELECTRONICS 1.1 Fluorescence-Cued Laser -Induced Breakdown Spectroscopy Detection of Bioaerosols...2. ELECTRO-OfI’ICAL MATERIALS AND DEVICES 2.1 Narrow-Linewidth, High-Power 1556-nm Slab-Coupled Optical Waveguide External-Cavity Laser 7 3

Design and Analysis of an Attitude Determination and Control Subsystem (ADCS) for AFIT’s 6U Standard Bus

DTIC Science & Technology

2014-03-27

Fault Detection and Isolation GUI Graphical User Interface IGRF International Geomagnetic Reference Field IMU Inertial Measurement Unit IR infrared xv...ADCS hardware components were either commercially purchased or built in-house and include an Inertial Measurement Unit ( IMU ), external magnetometer, 4...3.2.1.3 IMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 3.2.1.4 External Magnetometer . . . . . . . . . . . . . . . . . . 48 3.2.2

Does Homeland Security Constitute an Emerging Academic Discipline?

DTIC Science & Technology

2013-03-01

Postgraduate School NSA National Security Agency OED Oxford English Dictionary U.S. United States xiv THIS PAGE INTENTIONALLY LEFT BLANK xv...Curriculum Design: A Case Study in Neuroscience ,” The Journal of Undergraduate Neuroscience Education 10, no. 1 (2011): A71–A79. 37 physical reaction...article entitled, “A Conceptual Framework for Interdisciplinary Curriculum Design: A Case Study in Neuroscience :”140 Table 2. An Overview of

Structural, optical, physical and electrical properties of V2O5.SrO.B2O3 glasses.

PubMed

Sindhu, S; Sanghi, S; Agarwal, A; Seth, V P; Kishore, N

2006-05-01

The present work aims to study the structure and variation of optical band gap, density and dc electrical conductivity in vanadium strontium borate glasses. The glass systems xV2O5.(40-x)SrO.60B2O3 and xV2O5.(60-x)B2O3.40SrO with x varying from 0 to 20 mol% were prepared by normal melt quench technique. Structural studies were made by recording IR transmission spectra. The fundamental absorption edge for all the glasses was analyzed in terms of the theory proposed by Davis and Mott. The position of absorption edge and hence the value of the optical band gap was found to depend on the semiconducting glass composition. The absorption in these glasses is believed to be associated with indirect transitions. The origin of Urbach energy is associated with the phonon-assisted indirect transitions. The change in both density and molar volume was discussed in terms of the structural modifications that take place in the glass matrix on addition of V2O5. dc conductivity of the glass systems is also reported. The change of conductivity and activation energy with composition indicates that the conduction process varies from ionic to polaronic one.

Effect of processor temperature on film dosimetry

DOE Office of Scientific and Technical Information (OSTI.GOV)

Srivastava, Shiv P.; Das, Indra J., E-mail: idas@iupui.edu

2012-07-01

Optical density (OD) of a radiographic film plays an important role in radiation dosimetry, which depends on various parameters, including beam energy, depth, field size, film batch, dose, dose rate, air film interface, postexposure processing time, and temperature of the processor. Most of these parameters have been studied for Kodak XV and extended dose range (EDR) films used in radiation oncology. There is very limited information on processor temperature, which is investigated in this study. Multiple XV and EDR films were exposed in the reference condition (d{sub max.}, 10 Multiplication-Sign 10 cm{sup 2}, 100 cm) to a given dose. Anmore » automatic film processor (X-Omat 5000) was used for processing films. The temperature of the processor was adjusted manually with increasing temperature. At each temperature, a set of films was processed to evaluate OD at a given dose. For both films, OD is a linear function of processor temperature in the range of 29.4-40.6 Degree-Sign C (85-105 Degree-Sign F) for various dose ranges. The changes in processor temperature are directly related to the dose by a quadratic function. A simple linear equation is provided for the changes in OD vs. processor temperature, which could be used for correcting dose in radiation dosimetry when film is used.« less

Advanced Technology Blade testing on the XV-15 Tilt Rotor Research Aircraft

NASA Technical Reports Server (NTRS)

Wellman, Brent

1992-01-01

The XV-15 Tilt Rotor Research Aircraft has just completed the first series of flight tests with the Advanced Technology Blade (ATB) rotor system. The ATB are designed specifically for flight research and provide the ability to alter blade sweep and tip shape. A number of problems were encountered from first installation through envelope expansion to airplane mode flight that required innovative solutions to establish a suitable flight envelope. Prior to operation, the blade retention hardware had to be requalified to a higher rated centrifugal load, because the blade weight was higher than expected. Early flights in the helicopter mode revealed unacceptably high vibratory control system loads which required a temporary modification of the rotor controls to achieve higher speed flight and conversion to airplane mode. The airspeed in airplane mode was limited, however, because of large static control loads. Furthermore, analyses based on refined ATB blade mass and inertia properties indicated a previously unknown high-speed blade mode instability, also requiring airplane-mode maximum airspeed to be restricted. Most recently, a structural failure of an ATB cuff (root fairing) assembly retention structure required a redesign of the assembly. All problems have been addressed and satisfactory solutions have been found to allow continued productive flight research of the emerging tilt rotor concept.

Structure and dynamics of H2+ near the dissociation threshold: A combined experimental and computational investigation

NASA Astrophysics Data System (ADS)

Beyer, Maximilian; Merkt, Frédéric

2016-12-01

The pulsed-field-ionization zero-kinetic-energy photoelectron spectrum of H2 has been recorded in the vicinity of the dissociative-ionization threshold following three-photon excitation via selected rotational levels of the B1 Σu+ (v = 19) and H ‾ 1 Σg+ (v = 11) intermediate states. The spectra consist of transitions to bound levels of the X+2 Σg+ state of H2+ with v+ in the range 14-19 and N+ in the range 0-9, of the A+2 Σu+ state with v+ = 0 and N+ = 0-2, and of shape resonances corresponding to the X+(v+ = 17, N+ = 7) and X+(v+ = 18, N+ = 4) quasibound levels. Calculations of the level structure of H2+ have been carried out and the influence of adiabatic, nonadiabatic, relativistic and radiative corrections on the positions of these levels, and in the case of the shape resonances also on their widths, has been investigated. Different methods of calculating the widths and profiles of the shape resonances have been tested for comparison with the experimental observations. Slow oscillations of the dissociative-ionization yield have been observed and reflect, in first approximation, the Franck-Condon factors of the X+, A+ ← H ‾ bound - free transitions.

Modified Homogeneous Data Set of Coronal Intensities

NASA Astrophysics Data System (ADS)

Dorotovič, I.; Minarovjech, M.; Lorenc, M.; Rybanský, M.

2014-07-01

The Astronomical Institute of the Slovak Academy of Sciences has published the intensities, recalibrated with respect to a common intensity scale, of the 530.3 nm (Fe xiv) green coronal line observed at ground-based stations up to the year 2008. The name of this publication is Homogeneous Data Set (HDS). We have developed a method that allows one to successfully substitute the ground-based observations by satellite observations and, thus, continue with the publication of the HDS. For this purpose, the observations of the Extreme-ultraviolet Imaging Telescope (EIT), onboard the Solar and Heliospheric Observatory (SOHO) satellite, were exploited. Among other data the EIT instrument provides almost daily 28.4 nm (Fe xv) emission-line snapshots of the corona. The Fe xiv and Fe xv data (4051 observation days) taken in the period 1996 - 2008 have been compared and good agreement was found. The method to obtain the individual data for the HDS follows from the correlation analysis described in this article. The resulting data, now under the name of Modified Homogeneous Data Set (MHDS), are identical up to 1996 to those in the HDS. The MHDS can be used further for studies of the coronal solar activity and its cycle. These data are available at http://www.suh.sk.

Hover Acoustic Characteristics of the XV-15 with Advanced Technology Blades

NASA Technical Reports Server (NTRS)

Conner, David A.; Wellman, J. Brent

1993-01-01

An experiment has been performed to investigate the far-field hover acoustic characteristics of the XV-15 aircraft with advanced technology blades (ATB). An extensive, high-quality, far-field acoustics data base was obtained for a rotor tip speed range of 645-771 ft/s. A 12-microphone, 500-ft radius semicircular array combined with two aircraft headings provided acoustic data over the full 360-deg azimuth about the aircraft with a resolution of 15 deg. Altitude variations provided data from near in-plane to 45 deg below the rotor tip path plane. Acoustic directivity characteristics in the lower hemisphere are explored through pressure time histories, narrow-band spectra, and contour plots. Directivity patterns were found to vary greatly with azimuth angle, especially in the forward quadrants. Sharp positive pressure pulses typical of blade-vortex interactions were found to propagate aft of the aircraft and were most intense at 45 deg below the rotor plane. Modest overall sound pressure levels were measured near in-plane indicating that thickness noise is not a major problem for this aircraft when operating in the hover mode with ATB. Rotor tip speed reductions reduced the average overall sound pressure level (dB (0.0002 dyne/cm(exp 2)) by nearly 8 dB in-plane, and 12.6 deg below the rotor plane.

Book Review: Controversy and consensus in nuclear beta decay 1911-1934 by Carsten Jensen. Finn Aaserud, Helge Kragh, Erik Rüdinger, Roger H. Stuewer (Eds.), Burkhaüser-Verlag, Basel, 2000, xv+217 pp., US 79.95, ISBN 3-7643-5319-9

NASA Astrophysics Data System (ADS)

Brown, Laurie M.

This book is the doctoral dissertation of Carsten Jensen, researched at the University of Copenhagen under the supervision of Erik Rüdinger, who was the director of the Niels Bohr Institute until Finn Aaserud succeeded him in 1989. A few months after receiving his Ph.D. in 1990, Jensen passed away. The two mentioned directors, together with Helge Kragh and Roger H. Stuewer, edited Jensen's dissertation and ten years later brought it to publication. Some newer historical references have been added, quotations were translated or paraphrased, some photographs included but-according to the editors-they made "few changes of substance." Jensen taught in a Danish Gymnasium while writing his dissertation, which is a rather complete study of a central episode in early nuclear physics. It is well worth the efforts of the distinguished corps of editors to make it available to historians of science.

MOJAVE. XV. VLBA 15 GHz Total Intensity and Polarization Maps of 437 Parsec-scale AGN Jets from 1996 to 2017

NASA Astrophysics Data System (ADS)

Lister, M. L.; Aller, M. F.; Aller, H. D.; Hodge, M. A.; Homan, D. C.; Kovalev, Y. Y.; Pushkarev, A. B.; Savolainen, T.

2018-01-01

We present 5321 mas-resolution total intensity and linear polarization maps of 437 active galactic nuclei (AGNs) obtained with the VLBA at 15 GHz as part of the MOJAVE survey, and also from the NRAO data archive. The former is a long-term program to study the structure and evolution of powerful parsec-scale outflows associated with AGNs. The targeted AGNs are drawn from several flux-limited radio and γ-ray samples, and all have correlated VLBA flux densities greater than ∼50 mJy at 15 GHz. Approximately 80% of these AGNs are associated with γ-ray sources detected by the Fermi LAT instrument. The vast majority were observed with the VLBA on 5–15 occasions between 1996 January 19 and 2016 December 26, at intervals ranging from a month to several years, with the most typical sampling interval being six months. A detailed analysis of the linear and circular polarization evolutions of these AGN jets is presented in the other papers in this series.

TRENDS: A flight test relational database user's guide and reference manual

NASA Technical Reports Server (NTRS)

Bondi, M. J.; Bjorkman, W. S.; Cross, J. L.

1994-01-01

This report is designed to be a user's guide and reference manual for users intending to access rotocraft test data via TRENDS, the relational database system which was developed as a tool for the aeronautical engineer with no programming background. This report has been written to assist novice and experienced TRENDS users. TRENDS is a complete system for retrieving, searching, and analyzing both numerical and narrative data, and for displaying time history and statistical data in graphical and numerical formats. This manual provides a 'guided tour' and a 'user's guide' for the new and intermediate-skilled users. Examples for the use of each menu item within TRENDS is provided in the Menu Reference section of the manual, including full coverage for TIMEHIST, one of the key tools. This manual is written around the XV-15 Tilt Rotor database, but does include an appendix on the UH-60 Blackhawk database. This user's guide and reference manual establishes a referrable source for the research community and augments NASA TM-101025, TRENDS: The Aeronautical Post-Test, Database Management System, Jan. 1990, written by the same authors.

The CONNIE experiment

NASA Astrophysics Data System (ADS)

Aguilar-Arevalo, A.; Bertou, X.; Bonifazi, C.; Butner, M.; Cancelo, G.; Castaneda Vazquez, A.; Cervantes Vergara, B.; Chavez, C. R.; Da Motta, H.; D'Olivo, J. C.; Dos Anjos, J.; Estrada, J.; Fernandez Moroni, G.; Ford, R.; Foguel, A.; Hernandez Torres, K. P.; Izraelevitch, F.; Kavner, A.; Kilminster, B.; Kuk, K.; Lima, H. P., Jr.; Makler, M.; Molina, J.; Moreno-Granados, G.; Moro, J. M.; Paolini, E. E.; Sofo Haro, M.; Tiffenberg, J.; Trillaud, F.; Wagner, S.

2016-10-01

The CONNIE experiment uses fully depleted, high resistivity CCDs as particle detectors in an attempt to measure for the first time the Coherent Neutrino-Nucleus Elastic Scattering of antineutrinos from a nuclear reactor with silicon nuclei. This talk, given at the XV Mexican Workshop on Particles and Fields (MWPF), discussed the potential of CONNIE to perform this measurement, the installation progress at the Angra dos Reis nuclear power plant, as well as the plans for future upgrades.

Modular Heat Dissipation Technique for a CubeSat

DTIC Science & Technology

2015-07-28

Model TVAC Thermal Vacuum Chamber System xv U.S. United States UV Ultraviolet VUV Vacuum Ultraviolet xvi 1 MODULAR HEAT...failure percentage approaches to 50% in university- led missions [Swartwout, 2013]. It can also be deduced from the analysis that on-orbit failures of...simulator is designed to achieve one sun equivalent illumination with three-degree collimation over a 12 in x 12 in area. A 1.6 kW lamp is used for the

ESTCP UXO Discrimination Study. MTADS Demonstration at Camp Sibert Magnetometer / EM61 MkII / GEM-3 Arrays, Gadsden, AL, April 2007

DTIC Science & Technology

2008-08-21

Yuma Proving Ground Open Field ............................................................................... 76 B.3.1 Response Stage... Yuma Proving Ground ZIP (250) Iomega ZIP disk (250 MB version) xv ACKNOWLEDGEMENTS Glenn Harbaugh and Daniel Steinhurst (P.I.) of Nova Research...sites at Aberdeen Proving Ground and Yuma Proving Ground in 2003 and 2004 [6]. At each of the sites, the Calibration Lanes, the Blind Test Grid

V/STOL tilt rotor research aircraft. Volume 3: Ship 2 instrumentation

NASA Technical Reports Server (NTRS)

1978-01-01

Information covering sensor cables, sensor installation, and sensor calibration for the XV-15 aircraft number 2 is included. For each junction box (J-box) designation there is a schematic of the J-box disconnect harness, instrumentation worksheets which show sensor location, and calibration data sheets for each sensor associated with that J-box. An index of measurement data codes to J-box locations is given in a table. Cross references are given.

A Proposed Design for an Interim Space Rescue Ferry Vehicle.

DTIC Science & Technology

1985-12-01

Mussack of the SOS Lab deserves credit for helping me to determine the effects of plume impingement on vehicle control. Jack Tiffany, head of the AFIT... Effective Thruster Forces .. .......... . 85 XV. Simulation Results--Solo MMU/Primary Control Mode ....... .................... 91 XVI. Simulation...will be made as explained in 2 and 3 (9:2-34--36). Figure 2.7 does not reflect the effects of a limb motion filter, which briefly delays AAH response

The CONNIE experiment

DOE Office of Scientific and Technical Information (OSTI.GOV)

Aguilar-Arevalo, A.; et al.

2016-10-19

The CONNIE experiment uses fully depleted, high resistivity CCDs as particle detectors in an attempt to measure for the first time the Coherent Neutrino-Nucleus Elastic Scattering of antineutrinos from a nuclear reactor with silicon nuclei.This talk, given at the XV Mexican Workshop on Particles and Fields (MWPF), discussed the potential of CONNIE to perform this measurement, the installation progress at the Angra dos Reis nuclear power plant, as well as the plans for future upgrades.

Comparing the Performance of Resident to Distance Learning Student Navy Officers at Naval Postgraduate School

DTIC Science & Technology

2015-03-01

Officer of Institutional Research and Planning xv PCS Permanent Change of Station PII Personally Identifiable Information PO Provost Oversight QPR...Strong Vocational Interest Blank SWO Surface Warfare Officer TA Tuition Assistance TQPR Total Quality Point Rating USNA United States Naval Academy...individual’s personal motivation and professional potential. Earning a master’s degree can be considered an unofficial “check in the box” to many

Single Platform Geolocation of Radio Frequency Emitters

DTIC Science & Technology

2015-03-26

Error SNR Signal to Noise Ratio SOI Signal of Interest STK Systems Tool Kit UCA Uniform Circular Array WGS World Geodetic System xv SINGLE PLATFORM...Section 2.6 describes a method to visualize the confidence of estimated parameters. 2.1 Coordinate Systems and Reference Frames The following...be used to visualize the confidence surface using the method developed in Section 2.6. The NLO method will be shown to be the minimization of the

V/STOL tilt rotor research aircraft. Volume 2: Ship 1 instrumentation

NASA Technical Reports Server (NTRS)

1978-01-01

Information covering sensor cables, sensor installation, and sensor calibration for the XV-15 aircraft number 1 is included. For each junction box (J-box) designation there is a schematic of the J-box disconnect harness instrumentation worksheets which show sensor location, and calibration data sheets for each sensor associated with that J-box. An index of measurement item codes to J-box locations is given in a table. Cross references are given.

A Legal Reasoning Component of a Network Security Command and Control System

DTIC Science & Technology

2010-03-01

United States Code VA Vulnerability Assessment VLC Virtual Legal Cell xv ACKNOWLEDGMENTS The authors would like to humbly thank Professor Bret...cyberspace environment. In this thesis, the authors address the information warrior’s challenge of obtaining just-in-time legal advice. They...PROPOSED VIRTUAL DYNAMIC LEGAL CELL One of the challenges in cyberspace is to define and detect a hostile act or the use of force. Another major

Antibody repertoire development in fetal and neonatal piglets. XV. Porcine circovirus type 2 infection differentially affects serum IgG levels and antibodies to ORF2 in piglets free from other environmental factors

USDA-ARS?s Scientific Manuscript database

Porcine circovirus type 2 (PCV2) is an important pathogen in the porcine respiratory disease complex (PRDC) and its persistence may be due to dysregulation of systemic immunity. We examined this contention using isolator piglets. We present data on Ig levels in serum and bronchio-alveolar lavage (BA...

Studies on the pathogenesis of fever. XV. The production of endogenous pyrogen by peritoneal macrophages.

PubMed

Hahn, H H; Char, D C; Postel, W B; Wood, W B

1967-08-01

Macrophages from oil-induced peritoneal exudates in rabbits produce endogenous pyrogen when first activated by incubation in 4 hr exudate fluid and then stimulated by incubation in potassium-free isotonic sodium chloride solution. The failure of earlier investigators to obtain pyrogen from macrophages is explained, and the relevance of macrophage pyrogen to fevers of agranulocytosis and other diseases, in which mononuclear rather than granulocytic exudates predominate, is discussed.

An Analysis of Mathematical Models to Improve Counter-Drug Smuggling Operations

DTIC Science & Technology

2014-09-01

users. The target input file for the optimization algorithm has one segment of one target path on each row. Thus, if a target travels along a path...organization TOS time on station TSP Travelling Salesperson Problem USCG United States Coast Guard USN United States Navy UCONN University...of Connecticut UNCLOS United Nations Convention on Law of the Sea xv EXECUTIVE SUMMARY This research is motivated by the ongoing efforts of the

Use of Statechart Assertions for Modeling Human-in-the-Loop Security Analysis and Decision-Making Processes

DTIC Science & Technology

2012-06-01

THIS PAGE INTENTIONALLY LEFT BLANK xv LIST OF ACRONYMS AND ABBREVIATIONS BPM Business Process Model BPMN Business Process Modeling Notation C&A...checking leads to an improvement in the quality and success of enterprise software development. Business Process Modeling Notation ( BPMN ) is an...emerging standard that allows business processes to be captured in a standardized format. BPMN lacks formal semantics which leaves many of its features

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ziritt, Jose Luis

The results from Annex XIII of the Cooperative Agreement between the United States Department of Energy (DOE) and the Ministry of Energy and Mines of the Republic of Venezuela (MEMV) have been documented and published with many researchers involved. Integrate comprehensive research programs in the area of Microbial Enhanced Oil Recovery (MEOR) ranged from feasibility laboratory studies to full-scale multi-well field pilots. The objective, to cooperate in a technical exchange of ideas and information was fully met throughout the life of the Annex. Information has been exchanged between the two countries through published reports and technical meetings between experts inmore » both country's research communities. The meetings occurred every two years in locations coincident with the International MEOR conferences & workshops sponsored by DOE (June 1990, University of Oklahoma, September 1992, Brookhaven, September 1995, National Institute of Petroleum and Energy Research). Reports and publications produced during these years are listed in Appendix B. Several Annex managers have guided the exchange through the years. They included Luis Vierma, Jose Luis Zirritt, representing MEMV and E. B. Nuckols, Edith Allison, and Rhonda Lindsey, representing the U.S. DOE. Funding for this area of research remained steady for a few years but decreased in recent years. Because both countries have reduced research programs in this area, future exchanges on this topic will occur through ANNEX XV. Informal networks established between researchers through the years should continue to function between individuals in the two countries.« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Callias, C.J.

It has been known for a long time that the spectrum of the Sturm-Liouville operator {minus}{partial_derivative}{sub x}{sup 2}+ v(x) on a finite interval does not uniquely determine the potential v(x). In fact there are infinite-dimensional isospectral classes of potentials [PT]. Highly singular problems have been addressed as well, notably the question of the isospectral classes of the harmonic oscillator on the real line [McK-T], and, more recently, of the singular Sturm-Liouville operator {minus}{partial_derivative}{sub x}{sup 2} + {ell}({ell}+1)/x{sup 2} + v(x) on [0,1][GR]. In this paper we examine the question of whether the structure of isolated singularities in the potential ismore » spectrally determined. As an example of the fruits of our efforts we were able to prove the following result for the Dirichlet problem: Suppose that v(x) {epsilon} C{sup {infinity}}([-1,1]/(0)) is real-valued and v{sup (k)}(1) for all k. Suppose that xv(x) is infinitely differentiable at x = 0 from the right and from the left and lim{sub x}{r_arrow}0+ (d/{sub dx}){sup K}xv(x) = (-1){sup k+1}lim{sub x{r_arrow}0}-(d/dx){sup k}xv(x), so that v(x) {approximately} {Sigma}{sub k}{sup {infinity}}=-1{sup vk}{center_dot}{vert_bar}x{vert_bar}{sup k} as x {r_arrow} 0, for some constants v{sub k}. Suppose that v{sub {minus}1}{ne}0. Then the spectrum of the Sturm-Liousville operator with periodic boundary conditions at {plus_minus}1 and Dirichlet conditions at x = 0 uniquely determines the sequence of asymptotic coefficients v{sub {minus}1}, v{sub 0}, v{sub 1},...Potentials with the 1/x singularity arise in the wave equation for a vibrating rod of variable cross-section, when the cross-sectional area of the rod vanishes quadratically (as a function of the distance from the end of the rod) at one point. The main reason why we look at this problem is as a model that will give us an idea of what can be expected when one attempts to get information about singularities from the spectrum.« less

SU-E-CAMPUS-J-05: Quantitative Investigation of Random and Systematic Uncertainties From Hardware and Software Components in the Frameless 6DBrainLAB ExacTrac System

DOE Office of Scientific and Technical Information (OSTI.GOV)

Keeling, V; Jin, H; Hossain, S

2014-06-15

Purpose: To evaluate setup accuracy and quantify individual systematic and random errors for the various hardware and software components of the frameless 6D-BrainLAB ExacTrac system. Methods: 35 patients with cranial lesions, some with multiple isocenters (50 total lesions treated in 1, 3, 5 fractions), were investigated. All patients were simulated with a rigid head-and-neck mask and the BrainLAB localizer. CT images were transferred to the IPLAN treatment planning system where optimized plans were generated using stereotactic reference frame based on the localizer. The patients were setup initially with infrared (IR) positioning ExacTrac system. Stereoscopic X-ray images (XC: X-ray Correction) weremore » registered to their corresponding digitally-reconstructed-radiographs, based on bony anatomy matching, to calculate 6D-translational and rotational (Lateral, Longitudinal, Vertical, Pitch, Roll, Yaw) shifts. XC combines systematic errors of the mask, localizer, image registration, frame, and IR. If shifts were below tolerance (0.7 mm translational and 1 degree rotational), treatment was initiated; otherwise corrections were applied and additional X-rays were acquired to verify patient position (XV: X-ray Verification). Statistical analysis was used to extract systematic and random errors of the different components of the 6D-ExacTrac system and evaluate the cumulative setup accuracy. Results: Mask systematic errors (translational; rotational) were the largest and varied from one patient to another in the range (−15 to 4mm; −2.5 to 2.5degree) obtained from mean of XC for each patient. Setup uncertainty in IR positioning (0.97,2.47,1.62mm;0.65,0.84,0.96degree) was extracted from standard-deviation of XC. Combined systematic errors of the frame and localizer (0.32,−0.42,−1.21mm; −0.27,0.34,0.26degree) was extracted from mean of means of XC distributions. Final patient setup uncertainty was obtained from the standard deviations of XV (0.57,0.77,0.67mm,0.39,0.35,0.30degree). Conclusion: Statistical analysis was used to calculate cumulative and individual systematic errors from the different hardware and software components of the 6D-ExacTrac-system. Patients were treated with cumulative errors (<1mm,<1degree) with XV image guidance.« less

Comparing Alternative U.S. Counterterrorism Strategies: Can Assumption-Based Planning Help Elevate the Debate?

DTIC Science & Technology

2008-01-01

lay workshop employed survey research techniques with the participants to attempt to measure ABP’s effect on their debate. The workshops examined three...gave written surveys to all par- ticipants before and after the lay workshop to measure how they responded to the experience and how it affected...IR&D funds that made this effort possible. xv Abbreviations ABP assumption-based planning the League League of Women Voters RDM robust

Development Of A Numerical Tow Tank With Wave Generation To Supplement Experimental Efforts

DTIC Science & Technology

2017-12-01

vehicles CAD computer aided design CFD computational fluid dynamics FVM finite volume method IO information operations ISR intelligence, surveillance, and...deliver a product that I am truly proud of. xv THIS PAGE INTENTIONALLY LEFT BLANK xvi CHAPTER 1: Introduction 1.1 Importance of Tow Tank Testing Modern...wedge installation. 1 In 2016, NPS student Ensign Ryan Tran adapted an existing vertical plunging wedge wave maker design used at the U.S. Naval

Business Process Reengineering With Knowledge Value Added in Support of the Department of the Navy Chief Information Officer

DTIC Science & Technology

2003-09-01

BLANK xv LIST OF ACRONYMS ABC Activity Based Costing ADO ActiveX Data Object ASP Application Server Page BPR Business Process Re...processes uses people and systems (hardware, software, machinery, etc.) and that these people and systems contain the “corporate” knowledge of the...server architecture was also a high maintenance item. Data was no longer contained on one mainframe but was distributed throughout the enterprise

Planning and Problem Solving

DTIC Science & Technology

1982-10-01

Artificial Intelig ~ence (Vol. III, edited by Paul R. Cohen and’ Edward A.. Feigenbaum)’, The chapter was written B’ Paul Cohen, with contributions... Artificial Intelligence (Vol. III, edited by Paul R. Cohen and EdWard A. Feigenbaum). The chapter was written by Paul R. Cohen, with contributions by Stephen...Wheevoats"EntermdI’ Planning and Problem ’Solving by Paul R. Cohen Chaptb-rXV-of Volumec III’of the Handbook of Artificial Intelligence edited by Paul R

MV-22: A Hybrid, Multi-Role Aircraft for the Complex Battlefields of the Future

DTIC Science & Technology

2010-04-05

ofTerrorism: What does it all mean ? (lecture, Marine Corps Command and Staff College, Quantico, VA, February 23, 201 0). 41 Sanders, http... does it all mean ? Lecture, Marine Corps Command and StaffCollege, Quantico, VA, February 23, 2010. Mullins, Mark. "U.S. Navy Irregular Warfare Office...Second Nicaraguan Campaign, 1927-33." Aerospace Power Journal XV, 3 (Fall2001). 33 Johnson, Wray R. "Counterinsurgency in a Time of Terrorism: What

Municipal Waste Incinerator Public Works Center, Yokosuka Japan Evaluation and Recommendations

DTIC Science & Technology

1993-04-01

Incinerator and Pollution Control Equipment 24 XIV. Gas Cooling Chamber Water Injection Sites and Control Valve 25 XV. Quencher Reactor 27 XVI...discussed below.I 11I.B.1. Exhaust Gas Cooling Chamber Within the exhaust gas cooling chamber, water is atomized into the gas stream cools the gases...as it evaporates. The feed rate of water is controlled to provide gases entering the quencher at 3000C (Figure XIV). The gases exit the exhaust gas

Pseudorandom Number Generators for Mobile Devices: An Examination and Attempt to Improve Randomness

DTIC Science & Technology

2013-09-01

Notes in Computer Science (LNCS), Vol. 4341), (Hanoi, Vietnam: Springer, 2006), 260–270. 36 Simon R. Blackburn , “The Linear Complexity of the Self... Blackburn , Simon R. ‘The Linear Complexity of the Self-Shrinking Generator.” IEEE Trans. Inf. Theory, 45 (September 1999). Blum, Leonore, Manuel...afloat when the waters have been rough! xv THIS PAGE INTENTIONALLY LEFT BLANK xvi I. INTRODUCTION When the average man thinks about war and

Translations on USSR Military Affairs. Number 1251

DTIC Science & Technology

1976-10-20

destroyers " Kotlin "-Class destroyers "Kruplin"-Class destroyers submarines, completion "M-XV"-Class submarines "Whiskey"-Class submarines "Quebec...leaders (with the exception of one prototype vessel) and some units of the even more modern " Kotlin " Class. Most hard-hit however was the submarine...first improvisation stage. They included primarily four " Kotlin " destroyer hulls which—equipped with an "SS-N-1" missile system— were completed as

Optimizing Sensing: From Water to the Web

DTIC Science & Technology

2009-05-01

e.g., when applied to busi - ness practices, the Pareto Principle says that “80% of your sales come from 20% of your clients.” In water distribution...of this challenge included a realistic model of a real metropolitan area water distribution network (Figure 4(a)) with 12,527 nodes, as well as a...we learn a probabilistic model P (Y,XV) from training data collected by [37] from 20 users. This model encodes the statistical dependencies between

Advances in Simultaneous Localization and Mapping in Confined Underwater Environments Using Sonar and Optical Imaging

DTIC Science & Technology

2016-01-01

satisfying journeys in my life. I would like to thank Ryan for his guidance through the truly exciting world of mobile robotics and robotic perception. Thank...Multi-session and Multi-robot SLAM . . . . . . . . . . . . . . . 15 1.3.3 Robust Techniques for SLAM Backends . . . . . . . . . . . . . . 18 1.4 A...sonar. xv CHAPTER 1 Introduction 1.1 The Importance of SLAM in Autonomous Robotics Autonomous mobile robots are becoming a promising aid in a wide

Correlation of low speed wind tunnel and flight test data for V/STOL aircraft

NASA Technical Reports Server (NTRS)

Cook, W. L.; Hickey, D. H.

1975-01-01

The XV-5B fan-in-wing aircraft and the Y0V-10 RCF rotating cylinder flap aircraft were subjected to wind tunnel tests. These tests were conducted specifically to provide for correlation between wind tunnel and inflight aerodynamics and noise test data. Correlation between aerodynamic and noise data are presented and testing techniques that are related to the accuracy of the data, or that might affect the correlations, are discussed.

Seeking Shadows in the Sky: The Strategy of Air Guerrilla Warfare

DTIC Science & Technology

2001-11-01

Structuring Air Power for the Small Air Force,” in Air Power Confronts an Unstable World, ed. Richard P. Hallion (London: Brassey’s, 1997), 181. 12...Santa Monica, Calif.: RAND, 1997), 207. 6. Air Commodore Andrew G. B. Vallance , “The Changing Nature of Air Warfare,” in Air Power Confronts an...Unstable World, ed. Richard P. Hallion (London: Brassey’s, 1997), xv; and Alan Stephens, The Implications of Modern Airpower for Defence Strategy, Air

Synthesis, Structural Characterization, and Growth Mechanism of Li 1+x V 3 O 8 Submicron Fibers for Lithium-Ion Batteries

DOE PAGES

Yue, Shiyu; Li, Jing; Wang, Lei; ...

2018-03-05

Here, we report on the synthesis of submicron Li 1+xV 3O 8 fibers through a facile mixed ethanol/water solution-mediated solvothermal route in the absence of surfactants. All the raw materials used are commercially available, relatively inexpensive, and low-toxic, and these can be handled in an ambient atmosphere, rendering this synthetic route as reasonably facile and efficient. To ensure a desirable and acceptable sample crystallinity and purity, we introduced a postannealing treatment at 500°C. The monoclinic phase formation of the fiber sample was probed in detail using a series of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, X-raymore » photoelectron spectroscopy, high resolution transmission electron microscopy, and selected area electron diffraction measurements. Both morphology and chemical composition could be carefully and systematically tuned in terms of generating a class of novel, pure, and well-defined motifs of Li 1+xV 3O 8. A plausible mechanism for the formation of submicron-diameter fibers has been discussed in addition to the expected phase transformation within our Li-V-O materials. Our comprehensive study should provide for needed fundamental insights into putting forth a viable synthesis strategy for the generation of well-defined morphological variants of layered oxide materials for battery applications.« less

Lithium vanadium oxides (Li1+xV3O8) as cathode materials in lithium-ion batteries for soldier portable power systems

NASA Astrophysics Data System (ADS)

Wang, Gaojun; Chen, Linfeng; Mathur, Gyanesh N.; Varadan, Vijay K.

2011-04-01

Improving soldier portable power systems is very important for saving soldiers' lives and having a strategic advantage in a war. This paper reports our work on synthesizing lithium vanadium oxides (Li1+xV3O8) and developing their applications as the cathode (positive) materials in lithium-ion batteries for soldier portable power systems. Two synthesizing methods, solid-state reaction method and sol-gel method, are used in synthesizing lithium vanadium oxides, and the chemical reaction conditions are determined mainly based on thermogravimetric and differential thermogravimetric (TG-DTG) analysis. The synthesized lithium vanadium oxides are used as the active positive materials in the cathodes of prototype lithium-ion batteries. By using the new solid-state reaction technique proposed in this paper, lithium vanadium oxides can be synthesized at a lower temperature and in a shorter time, and the synthesized lithium vanadium oxide powders exhibit good crystal structures and good electrochemical properties. In the sol-gel method, different lithium source materials are used, and it is found that lithium nitrate (LiNO3) is better than lithium carbonate (Li2CO3) and lithium hydroxide (LiOH). The lithium vanadium oxides synthesized in this work have high specific charge and discharge capacities, which are helpful for reducing the sizes and weights, or increasing the power capacities, of soldier portable power systems.

Synthesis, Structural Characterization, and Growth Mechanism of Li 1+x V 3 O 8 Submicron Fibers for Lithium-Ion Batteries

DOE Office of Scientific and Technical Information (OSTI.GOV)

Yue, Shiyu; Li, Jing; Wang, Lei

Here, we report on the synthesis of submicron Li 1+xV 3O 8 fibers through a facile mixed ethanol/water solution-mediated solvothermal route in the absence of surfactants. All the raw materials used are commercially available, relatively inexpensive, and low-toxic, and these can be handled in an ambient atmosphere, rendering this synthetic route as reasonably facile and efficient. To ensure a desirable and acceptable sample crystallinity and purity, we introduced a postannealing treatment at 500°C. The monoclinic phase formation of the fiber sample was probed in detail using a series of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, X-raymore » photoelectron spectroscopy, high resolution transmission electron microscopy, and selected area electron diffraction measurements. Both morphology and chemical composition could be carefully and systematically tuned in terms of generating a class of novel, pure, and well-defined motifs of Li 1+xV 3O 8. A plausible mechanism for the formation of submicron-diameter fibers has been discussed in addition to the expected phase transformation within our Li-V-O materials. Our comprehensive study should provide for needed fundamental insights into putting forth a viable synthesis strategy for the generation of well-defined morphological variants of layered oxide materials for battery applications.« less

A Database for Propagation Models and Conversion to C++ Programming Language

NASA Technical Reports Server (NTRS)

Kantak, Anil V.; Angkasa, Krisjani; Rucker, James

1996-01-01

The telecommunications system design engineer generally needs the quantification of effects of the propagation medium (definition of the propagation channel) to design an optimal communications system. To obtain the definition of the channel, the systems engineer generally has a few choices. A search of the relevant publications such as the IEEE Transactions, CCIR's, NASA propagation handbook, etc., may be conducted to find the desired channel values. This method may need excessive amounts of time and effort on the systems engineer's part and there is a possibility that the search may not even yield the needed results. To help the researcher and the systems engineers, it was recommended by the conference participants of NASA Propagation Experimenters (NAPEX) XV (London, Ontario, Canada, June 28 and 29, 1991) that a software should be produced that would contain propagation models and the necessary prediction methods of most propagation phenomena. Moreover, the software should be flexible enough for the user to make slight changes to the models without expending a substantial effort in programming. In the past few years, a software was produced to fit these requirements as best as could be done. The software was distributed to all NAPEX participants for evaluation and use, the participant reactions, suggestions etc., were gathered and were used to improve the subsequent releases of the software. The existing database program is in the Microsoft Excel application software and works fine within the guidelines of that environment, however, recently there have been some questions about the robustness and survivability of the Excel software in the ever changing (hopefully improving) world of software packages.

Role of p53 in Mammary Epithelial Cell Senescence

DTIC Science & Technology

2007-05-01

UTR similar to myosin XV GGCCATGGCT-38-GGCAGGAGT 4 8 Internal Homo sapiens chromosome 8, clone RP11-301G7 AGACACTCCT-8-AGACAGGGTC 5 6 Internal...Human DNA sequence from clone RP3-322A24. fibronectin type III domain containing 1 TTTCATGGCT-74-TGGTTTGCCT 6 12 Internal Homo sapiens 12 BAC RP11...513P18 TAACTTGTGT-x-TGAAATGCTT 7 5 Internal Homo sapiens chromosome 5 clone CTD-2210P15 AGGCAGGTTG-28-AGGCATCCTA 8 12 Internal Homo sapiens

Garbage Patch Visualization Experiment

NASA Image and Video Library

2015-08-20

Goddard visualizers show us how five garbage patches formed in the world's oceans using 35 years of data. Read more: 1.usa.gov/1Lnj7xV Credit: NASA's Scientific Visualization Studio NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram

SPECKLE INTERFEROMETRY AT THE U.S. NAVAL OBSERVATORY. XV

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mason, Brian D.; Hartkopf, William I.; Wycoff, Gary L., E-mail: bdm@usno.navy.mi, E-mail: wih@usno.navy.mi, E-mail: glw@usno.navy.mi

2010-08-15

Results of 2433 intensified CCD observations of double stars, made with the 26 inch refractor of the U.S. Naval Observatory, are presented. Each observation of a system represents a combination of over 2000 short-exposure images. These observations are averaged into 1013 mean relative positions and range in separation from 0.''96 to 58.''05, with a mean separation of 13.''50. This paper is the 15th in the series of papers and covers the period 2008 January 3 through 2008 December 21.

An Expert System for Design of Plastic Integrated Circuit Packages Against Latent Moisture Induced Defects. Phase II

DTIC Science & Technology

1998-02-01

Attach, Die Attachment Pad, Wine Bond? Substrate, Molding Compound, Leadframe, FWB, Heat Snk& Solder Databases ■ Proprietary •ANSYSLink...34■■ irm -i te5ÄS3wl«(S*i«S «!*!• i"■’.vT-*?-" *’■’ EsMat xvM H6IT«sBltf. Lnjl \\ 4.2.7 PWB ^**S^J[£ **;:■:& / "" (1) Input Px, Py (widths of

Some Modified Integrated Squared Error Procedures for Multivariate Normal Data.

DTIC Science & Technology

1982-06-01

p-dimensional Gaussian. There are a number of measures of qualitative robustness but the most important is the influence function . Most of the other...measures are derived from the influence function . The influence function is simply proportional to the score function (Huber, 1981, p. 45 ). The... influence function at the p-variate Gaussian distribution Np (UV) is as -1P IC(x; ,N) = IE&) ;-") sD=XV = (I+c) (p+2)(x-p) exp(- ! (x-p) TV-.1-)) (3.6

Design and Testing of an H2/O2 Predetonator for a Simulated Rotating Detonation Engine Channel

DTIC Science & Technology

2013-03-01

Diameter PDE Pulse Detonation Engines RDE Rotating Detonation Engine WPAFB Wright Patterson Air Force Base ZND Zeldovich, von Neumann and Doring xv...DESIGN AND TESTING OF AN H2/O2 PREDETONATOR FOR A SIMULATED ROTATING DETONATION ENGINE CHANNEL THESIS Stephen J. Miller, 2Lt, USAF AFIT-ENY-13-M-23...RELEASE; DISTRIBUTION UNLIMITED AFIT-ENY-13-M-23 DESIGN AND TESTING OF AN H2/O2 PREDETONATOR FOR A SIMULATED ROTATING DETONATION ENGINE CHANNEL Stephen

Flight researh at NASA Ames Research Center: A test pilot's perspective

NASA Technical Reports Server (NTRS)

Hall, G. Warren

1987-01-01

In 1976 NASA elected to assign responsibility for each of the various flight regimes to individual research centers. The NASA Ames Research Center at Moffett Field, California was designated lead center for vertical and short takeoff and landing, V/STOL research. The three most recent flight research airplanes being flown at the center are discussed from the test pilot's perspective: the Quiet Short Haul Research Aircraft; the XV-15 Tilt Rotor Research Aircraft; and the Rotor Systems Research Aircraft.

Free-Electron Laser (FEL) Utilization in Space Applications (Ship-Borne Pointing Accuracy, Deep-Space Communications, and Orbital Debris Tracking)

DTIC Science & Technology

2011-12-01

Network STK Satellite Tool Kit WFOV Wide-Field-of-View xv ACKNOWLEDGMENTS I would like to first and foremost thank the Lord, Jesus Christ, our...frequencies in FSK is easily visualized . Table 5.1 details the phase difference between each state as the number of represented states is increased...assist in visualizing the phase separation when adding additional phases to the system. Each of the rows from Table 5.1 is displayed in Figure 5.10

APOLLO XV - (LIFTOFF) - CAPE

NASA Image and Video Library

1971-07-26

S71-41810 (26 July 1971) --- The 363-feet tall Apollo 15 (Spacecraft 112/Lunar Module 10/Saturn 510) space vehicle is launched from Pad A, Launch Complex 39, Kennedy Space Center, Florida, at 9:34:00.79 a.m., July 26, 1971, on a lunar landing mission. Aboard the Apollo 15 spacecraft were astronauts David R. Scott, commander; Alfred M. Worden, commander module pilot; and James B. Irwin, lunar module pilot. Apollo 15 is the National Aeronautics and Space Administration's (NASA) fourth manned lunar landing mission.

Contributions to the Mosquito Fauna of Southeast Asia. XV. Genus Aedes Meigen, Subgenus Ayurakitia Thurman

DTIC Science & Technology

1972-01-01

P, 17 L, 11 with asso- ciated skins (5 p, 6 1). All type material except 1 paratype was examined. THAILAND. Chiang Mai : Buak Ha; Doi Sutep Mountain...shaded areas located in secondary deciduous forests; sites were in valleys located in mountainous areas; and at an elevation of 3,920 feet in Chiang Mai Province...aenea Thurman. Adults were col- lected resting among vegetation along a stream in Chiang Mai Province by SEATO Laboratory personnel. Thurman (1954

Analysis of DNA Sequences by An Optical Time-Integrating Correlator: Proof-Of-Concept Experiments.

DTIC Science & Technology

1992-05-01

TABLES xv LIST OF ABBREVIATIONS xvii 1.0 INTRODUCTION 1 2.0 DNA ANALYSIS STRATEGY 4 2.1 Representation of DNA Bases 4 2.2 DNA Analysis Strategy 6 3.0...Zehnder architecture. 3 Figure 3: Short representations of the DNA bases where each base is represented by a 7-bits long pseudorandom sequence. 5... DNA bases where each base is represented by 7-bits long pseudorandom sequences. 4 Table 2: Long representations of the DNA bases with 255-bits maximum

An Analysis of the Populations of the Air Force’s Medical and Professional Officer Corps

DTIC Science & Technology

2010-01-01

since 1978. (See pp. 3–4.) Since 1978, the Chaplain and Dental Corps have declined in rough parallel to the Air Force’s overall active-duty...prior to entering the medical and professional corps has been most common in the MSC and BSC and least common in the Dental Corps. Attrition between...interpretation to those statuses and trends. (See pp. 33–34.) xv Acknowledgments The authors appreciate the assistance of John Park, Lt Col William

Seeking Shadows in the Sky: The Strategy of Air Guerrilla Warfare

DTIC Science & Technology

2000-06-01

Air Power for the Small Air Force,” in Air Power Confronts an Unstable World, ed. Richard P. Hallion (London: Brassey’s, 1997), 181. 12 Shaun Clarke...Information Age, ed. John Arquilla and David Ronfeldt (Santa Monica, Calif., RAND, 1997), 207. 71 Air Commodore Andrew G. B. Vallance , “The Changing Nature...of Air Warfare,” in Air Power Confronts an Unstable World, ed. Richard P. Hallion (London: Brassey’s, 1997), xv; Alan Stephens, The Implications of

Fixed Wing Performance. Theory and Flight Test Techniques

DTIC Science & Technology

1977-07-01

L , J JA , iii hit I.IbS*I u Se t UX 1-4, Xl -4 TEST PROCEDURES AND TECHTNIUE,_ Pertinent Particulars a. At the time these tests are performed, the...7 , - • • . • • • • ••: • - • • -V• ,• • • • . . . REFERENCES Section XV 1. Anthropometry of Naval Aviators, 1964, NAEC-ACEL--533. 2. Cockpit...glare shlelds, etc. Htuman e~gineering persokmet are prepared to se particuiar equipments to attain quarititative data in cockpi’ anthropometry N NOT

A Model for the Growth of Network Service Providers

DTIC Science & Technology

2011-12-01

Service Provider O-D Origin-Destination POP Point of Presence UCG Unilateral Connection Game xiv THIS PAGE INTENTIONALLY LEFT BLANK xv EXECUTIVE...xvi We make use of the Abilene dataset as input to the network provisioning model and assume that the NSP is new to the market and is building an...has to decide on the connections to build and the markets to serve in order to maximize its profits. The NSP makes these decisions based on the market

Landslide Monitoring and Cultural Heritage At Risk: The Case Study of San Miniato Hill In Florence

NASA Astrophysics Data System (ADS)

Agostini, G.; Casagli, N.; Delmonaco, G.; Fanti, R.; Focardi, P.; Margottini, C.

San Miniato (known also as Monte alle Croci or Mons Florentinus) is the most fa- mous hill bordering the southern side of the historic center of Florence. Included in the SColli FiorentiniT (Florentine hills) overlooking the monuments and artworks of Flo- & cedil;rence, San Miniato provides a wonderful view of the city. The hillside has always been affected by slope instability phenomena, with periodical reactivations documented in several historic records. Most of the monuments and artworks located on the hill are cracked and fissured and have required restoration works in various circumstances in the centuries after their construction. The first documented studies on the stability of the hill were carried out by Leonardo da Vinci in the XV century and subsequently by various commissions appointed for the restoration works. During the XX century the hill was many times monitored with geotechnical instrumentation and some investiga- tions are still in progress today. This work concerns a review of these historical studies on slope instability and the interpretation of past and present monitoring results. An analytical review of the existing data is a necessary condition for the proposal of a reliable hypothesis concerning the slope instability characterization. This is made dif- ficult by the pluri-centenary urbanization of the entire hill which has led to the almost complete obliteration of the evidence of past movements and by the relevant presence of an invaluable artistic and cultural heritage.

Single locus sex determination and female heterogamety in the basket willow (Salix viminalis L.).

PubMed

Pucholt, P; Rönnberg-Wästljung, A-C; Berlin, S

2015-06-01

Most eukaryotes reproduce sexually and a wealth of different sex determination mechanisms have evolved in this lineage. Dioecy or separate sexes are rare among flowering plants but have repeatedly evolved from hermaphroditic ancestors possibly involving male or female sterility mutations. Willows (Salix spp.) and poplars (Populus spp.) are predominantly dioecious and are members of the Salicaceae family. All studied poplars have sex determination loci on chromosome XIX, however, the position differs among species and both male and female heterogametic system exists. In contrast to the situation in poplars, knowledge of sex determination mechanisms in willows is sparse. In the present study, we have for the first time positioned the sex determination locus on chromosome XV in S. viminalis using quantitative trait locus mapping. All female offspring carried a maternally inherited haplotype, suggesting a system of female heterogamety or ZW. We used a comparative mapping approach and compared the positions of the markers between the S. viminalis linkage map and the physical maps of S. purpurea, S. suchowensis and P. trichocarpa. As we found no evidence for chromosomal rearrangements between chromosome XV and XIX between S. viminalis and P. trichocarpa, it shows that the sex determination loci in the willow and the poplar most likely do not share a common origin and has thus evolved separately. This demonstrates that sex determination mechanisms in the Salicaceae family have a high turnover rate and as such it is excellent for studies of evolutionary processes involved in sex chromosome turnover.

In situ characterization of charge rate dependent stress and structure changes in V 2O 5 cathode prepared by atomic layer deposition

DOE Office of Scientific and Technical Information (OSTI.GOV)

Jung, Hyun; Gerasopoulos, Konstantinos; Talin, Albert Alec

Here, the insertion/extraction of lithium into/from various host materials is the basic process by which lithium-ion batteries reversible store charge. This process is generally accompanied by strain in the host material, inducing stress which can lead to capacity loss. Therefore, understanding of both the structural changes and the associated stress – investigated almost exclusively separate to date – is a critical factor for developing high-performance batteries. Here, we report an in situ method, which utilizes Raman spectroscopy in parallel with optical interferometry to study effects of varying charging rates (C-rates) on the structure and stress in a V 2O 5more » thin film cathode. Abrupt stress changes at specific crystal phase transitions in the Li—V—O system are observed and the magnitude of the stress changes with the amount of lithium inserted into the electrode are correlated. A linear increase in the stress as a function of x in Li xV 2O 5 is observed, indicating that C-rate does not directly contribute to larger intercalation stress. However, a more rapid increase in disorder within the Li xV 2O 5 layers is correlated with higher C-rate. Ultimately, these experiments demonstrate how the simultaneous stress/Raman in situ approach can be utilized as a characterization platform for investigating various critical factors affecting lithium-ion battery performance.« less

Application of the joined wing to tiltrotor aircraft

NASA Technical Reports Server (NTRS)

Wolkovitch, Julian; Wainfan, Barnaby; Ben-Harush, Yitzhak; Johnson, Wayne

1989-01-01

A study was made to determine the potential speed improvements and other benefits resulting from the application of the joined wing concept to tiltrotor aircraft. Using the XV-15 as a baseline, the effect of replacing the cantilever wing by a joined-wing pair was studied. The baseline XV-15 cantilever wing has a thickness/chord ratio of 23 percent. It was found that this wing could be replaced by a joined-wing pair of the same span and total area employing airfoils of 12 percent thickness/chord ratio. The joined wing meets the same static strength requirements as the cantilever wing, but increases the limiting Mach Number of the aircraft from M=0.575 to M=0.75, equivalent to an increase of over 100 knots in maximum speed. The joined wing configuration studied is lighter than the cantilever and has approximately 11 percent less wing drag in cruise. Its flutter speed of 245 knots EAS is not high enough to allow the potential Mach number improvement to be attained at low altitude. The flutter speed can be raised either by employing rotors which can be stopped and folded in flight at speeds below 245 knots EAS, or by modifying the airframe to reduce adverse coupling with the rotor dynamics. Several modifications of wing geometry and nacelle mass distribution were investigated, but none produced a flutter speed above 260 knots EAS. It was concluded that additional research is required to achieve a more complete understanding of the mechanism of rotor/wing coupling.

Single locus sex determination and female heterogamety in the basket willow (Salix viminalis L.)

PubMed Central

Pucholt, P; Rönnberg-Wästljung, A-C; Berlin, S

2015-01-01

Most eukaryotes reproduce sexually and a wealth of different sex determination mechanisms have evolved in this lineage. Dioecy or separate sexes are rare among flowering plants but have repeatedly evolved from hermaphroditic ancestors possibly involving male or female sterility mutations. Willows (Salix spp.) and poplars (Populus spp.) are predominantly dioecious and are members of the Salicaceae family. All studied poplars have sex determination loci on chromosome XIX, however, the position differs among species and both male and female heterogametic system exists. In contrast to the situation in poplars, knowledge of sex determination mechanisms in willows is sparse. In the present study, we have for the first time positioned the sex determination locus on chromosome XV in S. viminalis using quantitative trait locus mapping. All female offspring carried a maternally inherited haplotype, suggesting a system of female heterogamety or ZW. We used a comparative mapping approach and compared the positions of the markers between the S. viminalis linkage map and the physical maps of S. purpurea, S. suchowensis and P. trichocarpa. As we found no evidence for chromosomal rearrangements between chromosome XV and XIX between S. viminalis and P. trichocarpa, it shows that the sex determination loci in the willow and the poplar most likely do not share a common origin and has thus evolved separately. This demonstrates that sex determination mechanisms in the Salicaceae family have a high turnover rate and as such it is excellent for studies of evolutionary processes involved in sex chromosome turnover. PMID:25649501

Quantum Stark broadening of Ar XV lines. Strong collision and quadrupolar potential contributions

NASA Astrophysics Data System (ADS)

Elabidi, H.; Sahal-Bréchot, S.; Dimitrijević, M. S.

2014-10-01

We present in this paper electron impact broadening for six Ar XV lines using our quantum mechanical formalism and the semiclassical perturbation one. Additionally, our calculations of the corresponding atomic structure data (energy levels and oscillator strengths) and collision strengths are given as well. The lines considered here are divided into two sets: a first set of four lines involving the ground level: 1s22s21S0- 1s22snp 1P1o where 2⩽n⩽5 and a second set of two lines involving excited levels: 1s22s2p 1P1o-1s22s3s 1S0 and 1s22s2p 3P0o-1s22s3s 3S1. An extensive comparison between the quantum and the semiclassical results was performed in order to analyze the reason for differences between quantum and semiclassical results up to the factor of two. It has been shown that the difference between the two results may be due to the evaluation of strong collision contributions by the semiclassical formalism. Except few semiclassical results, the present results are the first to be published. After the recent discovery of the far UV lines of Ar VII in the spectra of very hot central stars of planetary nebulae and white dwarfs, the present -and may be further- results can be used also for the corresponding future spectral analysis.

In situ characterization of charge rate dependent stress and structure changes in V 2O 5 cathode prepared by atomic layer deposition

DOE PAGES

Jung, Hyun; Gerasopoulos, Konstantinos; Talin, Albert Alec; ...

2016-11-22

Here, the insertion/extraction of lithium into/from various host materials is the basic process by which lithium-ion batteries reversible store charge. This process is generally accompanied by strain in the host material, inducing stress which can lead to capacity loss. Therefore, understanding of both the structural changes and the associated stress – investigated almost exclusively separate to date – is a critical factor for developing high-performance batteries. Here, we report an in situ method, which utilizes Raman spectroscopy in parallel with optical interferometry to study effects of varying charging rates (C-rates) on the structure and stress in a V 2O 5more » thin film cathode. Abrupt stress changes at specific crystal phase transitions in the Li—V—O system are observed and the magnitude of the stress changes with the amount of lithium inserted into the electrode are correlated. A linear increase in the stress as a function of x in Li xV 2O 5 is observed, indicating that C-rate does not directly contribute to larger intercalation stress. However, a more rapid increase in disorder within the Li xV 2O 5 layers is correlated with higher C-rate. Ultimately, these experiments demonstrate how the simultaneous stress/Raman in situ approach can be utilized as a characterization platform for investigating various critical factors affecting lithium-ion battery performance.« less

The response of Kodak EDR2 film in high-energy electron beams.

PubMed

Gerbi, Bruce J; Dimitroyannis, Dimitri A

2003-10-01

Kodak XV2 film has been a key dosimeter in radiation therapy for many years. The advantages of the recently introduced Kodak EDR2 film for photon beam dosimetry have been the focus of several IMRT verification dosimetry publications. However, no description of this film's response to electron beams exists in the literature. We initiated a study to characterize the response and utility of this film for electron beam dosimetry. We exposed a series of EDR2 films to 6, 9, 12, 16, and 20 MeV electrons in addition to 6 and 18 MV x rays to develop standard characteristic curves. The linac was first calibrated to ensure that the delivered dose was known accurately. All irradiations were done at dmax in polystyrene for both photons and electrons, all films were from the same batch, and were developed at the same time. We also exposed the EDR2 films in a solid water phantom to produce central axis depth dose curves. These data were compared against percent depth dose curves measured in a water phantom using an IC-10 ion chamber, Kodak XV2 film, and a PTW electron diode. The response of this film was the same for both 6 and 18 MV x rays, but showed an apparent energy-dependent enhancement for electron beams. The response of the film also increased with increasing electron energy. This caused the percent depth dose curves using film to be shifted toward the surface compared to the ion chamber data.

Wind Tunnel Interference Effects on Tilt Rotor Testing Using Computational Fluid Dynamics

NASA Technical Reports Server (NTRS)

Koning, Witold J. F.

2016-01-01

Experimental techniques to measure rotorcraft aerodynamic performance are widely used. However, most of them are either unable to capture interference effects from bodies, or require an extremely large computational budget. The objective of the present research is to develop an XV-15 Tiltrotor Research Aircraft rotor model for investigation of wind tunnel wall interference using a novel Computational Fluid Dynamics (CFD) solver for rotorcraft, RotCFD. In RotCFD, a mid-fidelity Unsteady Reynolds Averaged Navier-Stokes (URANS) solver is used with an incompressible flow model and a realizable k-e turbulence model. The rotor is, however, not modeled using a computationally expensive, unsteady viscous body-fitted grid, but is instead modeled using a blade-element model (BEM) with a momentum source approach. Various flight modes of the XV-15 isolated rotor, including hover, tilt, and airplane mode, have been simulated and correlated to existing experimental and theoretical data. The rotor model is subsequently used for wind tunnel wall interference simulations in the National Full-Scale Aerodynamics Complex (NFAC) at Ames Research Center in California. The results from the validation of the isolated rotor performance showed good correlation with experimental and theoretical data. The results were on par with known theoretical analyses. In RotCFD the setup, grid generation, and running of cases is faster than many CFD codes, which makes it a useful engineering tool. Performance predictions need not be as accurate as high-fidelity CFD codes, as long as wall effects can be properly simulated. For both test sections of the NFAC wall, interference was examined by simulating the XV-15 rotor in the test section of the wind tunnel and with an identical grid but extended boundaries in free field. Both cases were also examined with an isolated rotor or with the rotor mounted on the modeled geometry of the Tiltrotor Test Rig (TTR). A "quasi linear trim" was used to trim the thrust for the rotor to compare the power as a unique variable. Power differences between free field and wind tunnel cases were found from -7 to 0 percent in the 80- by 120-Foot Wind Tunnel and -1.6 to 4.8 percent in the 40- by 80-Foot Wind Tunnel, depending on the TTR orientation, tunnel velocity, and blade setting. The TTR will be used in 2016 to test the Bell 609 rotor in a similar fashion to the research in this report.

Wind Tunnel Interference Effects on Tilt Rotor Testing Using Computational Fluid Dynamics

NASA Technical Reports Server (NTRS)

Koning, Witold J. F.

2015-01-01

Experimental techniques to measure rotorcraft aerodynamic performance are widely used. However, most of them are either unable to capture interference effects from bodies, or require an extremely large computational budget. The objective of the present research is to develop an XV-15 Tilt Rotor Research Aircraft rotor model for investigation of wind tunnel wall interference using a novel Computational Fluid Dynamics (CFD) solver for rotorcraft, RotCFD. In RotCFD, a mid-fidelity URANS solver is used with an incompressible flow model and a realizable k-e turbulence model. The rotor is, however, not modeled using a computationally expensive, unsteady viscous body-fitted grid, but is instead modeled using a blade element model with a momentum source approach. Various flight modes of the XV-15 isolated rotor, including hover, tilt and airplane mode, have been simulated and correlated to existing experimental and theoretical data. The rotor model is subsequently used for wind tunnel wall interference simulations in the National Full-Scale Aerodynamics Complex (NFAC) at NASA Ames Research Center in California. The results from the validation of the isolated rotor performance showed good correlation with experimental and theoretical data. The results were on par with known theoretical analyses. In RotCFD the setup, grid generation and running of cases is faster than many CFD codes, which makes it a useful engineering tool. Performance predictions need not be as accurate as high-fidelity CFD codes, as long as wall effects can be properly simulated. For both test sections of the NFAC wall interference was examined by simulating the XV-15 rotor in the test section of the wind tunnel and with an identical grid but extended boundaries in free field. Both cases were also examined with an isolated rotor or with the rotor mounted on the modeled geometry of the Tiltrotor Test Rig (TTR). A 'quasi linear trim' was used to trim the thrust for the rotor to compare the power as a unique variable. Power differences between free field and wind tunnel cases were found from -7 % to 0 % in the 80- by 120-Foot Wind Tunnel test section and -1.6 % to 4.8 % in the 40- by 80-Foot Wind Tunnel, depending on the TTR orientation, tunnel velocity and blade setting. The TTR will be used in 2016 to test the Bell 609 rotor in a similar fashion to the research in this report.

ESHRE PGD Consortium data collection XIV-XV: cycles from January 2011 to December 2012 with pregnancy follow-up to October 2013.

PubMed

De Rycke, M; Goossens, V; Kokkali, G; Meijer-Hoogeveen, M; Coonen, E; Moutou, C

2017-10-01

How does the data collection XIV-XV of the European Society of Human Reproduction and Embryology (ESHRE) PGD Consortium compare with the cumulative data for data collections I-XIII? The 14th and 15th retrospective collection represents valuable data on PGD/PGS cycles, pregnancies and children: the main trend observed is the increased application of array technology at the cost of FISH testing in PGS cycles and in PGD cycles for chromosomal abnormalities. Since 1999, the PGD Consortium has collected, analysed and published 13 previous data sets and an overview of the first 10 years of data collections. Data were collected from each participating centre using a FileMaker Pro database (versions 5-12). Separate predesigned FileMaker Pro files were used for the cycles, pregnancies and baby records. The study documented cycles performed during the calendar years 2011 and 2012 and follow-up of the pregnancies and babies born which resulted from these cycles (until October 2013). Data were submitted by 71 centres (full PGD Consortium members). Records with incomplete or inconsistent data were excluded from the calculations. Corrections, calculations and tables were made by expert co-authors. For data collection XIV-XV, 71 centres reported data for 11 637 cycles with oocyte retrieval (OR), along with details of the follow-up on 2147 pregnancies and 1755 babies born. A total of 1953 cycles to OR were reported for chromosomal abnormalities, 144 cycles to OR for sexing for X-linked diseases, 3445 cycles to OR for monogenic diseases, 6095 cycles to OR for PGS and 38 cycles to OR for social sexing. From 2010 until 2012, the use of arrays for genetic testing increased from 4% to 20% in PGS and from 6% to 13% in PGD cycles for chromosomal abnormalities; the uptake of biopsy at the blastocyst stage (from <1% up to 7%) was only observed in cycles for structural chromosomal abnormalities, alongside the application of array comparative genomic hybridization. The findings apply to the 71 participating centres and may not represent worldwide trends in PGD. The annual data collections provide an important resource for data mining and for following trends in PGD/PGS practice. None. © The Author 2017. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com

Sterilization of Medical Instruments

DTIC Science & Technology

2007-05-06

L.lV - QVa ,.t•_t) 210 J*t*(.iiL1L L ~ T , C VR VC 1 ~ =4xV. .I.Q -ta "Can obtain the capacitance of the dielectric plates as: 1 /CD = tan y Then the...Form Approved -REPORT DOCUMENTATION PAGE OMB No. 0704-0188 Public reporting burden for this collection of infonnation is estimated to average 1 hour...valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1 . REPORT DATE (DD-MM-YYYY) 2. REPORT TYPE 3. DATES COVERED (From - To) 04

Medical Entomology Studies - XV. A Revision of the Subgenus Paraedes of the Genus Aedes (Diptera: Culicidae)

DTIC Science & Technology

1981-01-01

does not display a currently valid OMB control number. 1. REPORT DATE 1981 2. REPORT TYPE 3. DATES COVERED 00-00-1981 to 00-00-1981 4. TITLE AND...branched; 9-CT longer than 8-CT. Respiratory trumpet. Index 3.21-6.31. Metanotal plate. Seta ll-CT single, occasionally barbed, longer than 10, 12...figured and recorded (Table 1). Cephalothorax. Seta l-CT with 3-5 branches. Respiratory trumpet. Index 3.73-5.25, mean 4.53. Abdomen. Seta l-11 with 14

ARTIST CONCEPT - ASTRONAUT WORDEN'S EXTRAVEHICULAR ACTIVITY (EVA) (APOLLO XV)

NASA Image and Video Library

1971-07-09

S71-39614 (July 1971) --- An artist's concept of the Apollo 15 Command and Service Modules (CSM), showing two crewmembers performing a new-to-Apollo extravehicular activity (EVA). The figure at left represents astronaut Alfred M. Worden, command module pilot, connected by an umbilical tether to the CM, at right, where a figure representing astronaut James B. Irwin, lunar module pilot, stands at the open CM hatch. Worden is working with the panoramic camera in the Scientific Instrument Module (SIM). Behind Irwin is the 16mm data acquisition camera. Artwork by North American Rockwell.

MLS Multipath Studies. Phase 3. Volume II. Development and Valiadation of Model for MLS Techniques.

DTIC Science & Technology

1980-02-07

2-40 2-32 Coherent interference phenomena encountered during TRSB field tests at JFK airport . 2-41 2-33 JFK airport environment near MLS elevation...24 4-8 Comparison of DMLS simulation and flight test on -380 radial at 2000 feet at JFK airport . 4-26 4-9 Comparison of DMLS simulation and flight...test on +380 radial at 2000 feet at JFK airport . 4-28 xv ( 4-10 Comparison of simulation with DMLS JFK centerline approach data. 4-29 4-11 DMLS "clean

Comparative Aspects of Multiple Processes of Attention.

DTIC Science & Technology

1988-05-01

8217’ - % % -.. -. % $. Neisser , U . (1968). The processes of vision. Scientific American, 219, 201-214. Olson, R., & Attneave, F. (1970). What...AD-ft." M~ COMPARATIVE ASPECTS OF MULTIPLE PROCESSES OF ATTENTION 1/1 ( U ) DAYTON UNIV ON RESEARCH INST N CNEAL NAY U USI FE AFNRL-TR-9?-53 F3613-64-C...0% FOV9 M IR;. 2.2s 11U, XV11Y L. IIMrV % u AFHRL-TR-87-53 ~IF r- AIR FORCE R COMPARATIVE ASPECiS OF MULTIPLE PROCESSES OF ATTENTION _H U ’) U MaryLou

China’s Pursuit for World Power Status: Is the Transformation of the People’s Liberation Army a Threat to the United States Global Interest and Security?

DTIC Science & Technology

2008-01-01

and Derek Mitchel, China and the Developing World, New York: M.E. Sharpe Inc, (2007), xv. 4 Ellis Joffe, "Roundtable; Sizing-the Chinese Military...Research, http://asiapolicy.nbr.org/current.html, (July 2007), 58-59. 12 Russell Ong , China’s Security Interests in the 21 51 Century, Routledge, (2007...Joffe, 59. 30 Joffe, 60. 31 Ong , 45. 23 Bibliography Bergsten, C. Fred, Institute for International Economics (U.S.), and Centre for Strategic and

Comparison of the Price and Volatility of Current and Alternative Models for the Acquisition of Direct Supply Natural Gas for the Department of Defense

DTIC Science & Technology

2005-06-01

xv DEFINITIONS Arbitrage : Buying a futures month on one exchange and selling the same month on another Exchange by buying both sides...Strategies for Volatile Times” study “…before 2000, energy end users seldom considered hedging practices as a means of protecting themselves against...turned out to be a poor idea, especially since that supplier was Enron. Jon Engers of KTM said, “We recommend that end users do their hedging on a

Listing of Army Fuel-Consuming Nonautomotive Ground Support Equipment.

DTIC Science & Technology

1981-08-01

W Z(55I(00W(.J...J0((55(5 X55(S NNN. .6uu m xv~ 00d0. . -z 00 0 0a0 e~ W 0 0 1fl 0 40.28 QUf0=Q lS59uuIIIII 4 a a acca N0QgI %q c a It, 4t 0 0 0 - !3...ATDO-S FORT MONROE VA 23651 DIR US ARMY MATERIALS & MECHANICS CDR RSCH CTR US ARMY NATICK RES & DEV CMD ATTN: DRXMR-E 1 ATTN: DRDNA-YEP ( DR KAPLAN

Introduction to Real Orthogonal Polynomials

DTIC Science & Technology

1992-06-01

uses Green’s functions. As motivation , consider the Dirichlet problem for the unit circle in the plane, which involves finding a harmonic function u(r...xv ; a, b ; q) - TO [q-N ab+’q ; q, xq b. Orthogoy RMotion O0 (bq :q)x p.(q* ; a, b ; q) pg(q’ ; a, b ; q) (q "q), (aq)x (q ; q), (I -abq) (bq ; q... motivation and justi- fication for continued study of the intrinsic structure of orthogonal polynomials. 99 LIST OF REFERENCES 1. Deyer, W. M., ed., CRC

The Framework for an Information Technology Strategic Roadmap for the United States Marine Corps: How Current Acquisitions Align to the Current Strategic Direction of the Department of Defense, Department of the Navy, and United States Marine Corps

DTIC Science & Technology

2008-06-01

PAGE INTENTIONALLY LEFT BLANK xv ACKNOWLEDGMENTS We would like to thank Mr. Clint Swett (Director, Technology Services Organization, DFAS- KC ) and...Major Jeffrey Thiry (Deputy Director, Technology Services Organization, DFAS- KC ) for their help and support. Their guidance proved invaluable in... Teo (1996) define alignment as the “coordination between the business and IS planning functions and activities”. Luftman, Papp and Brier (1999

PREFACE: XV International Seminar on Physics and Chemistry of Solids

NASA Astrophysics Data System (ADS)

Kotur, Bogdan; Brągiel, Piotr

2011-03-01

                  Logo     Logo The XV International Seminar on Physics and Chemistry of Solids (ISPCS15) was held from 7-10 June 2009 in Szklarska Poręba. Over eighty participants joined together in this mountain resort, at the foot of Szrenica peak, in the Polish part of the Sudety range. The majority or participants, in accordance with Seminar tradition, were from Ukraine and Poland. The pleasant and warm atmosphere created by the organizers was conducive to fruitful discussions, making new contacts and to joyful gatherings with friends. Even the rainy weather could not change that. Lectures and communications mainly covered the fields of solid state physics and chemistry, and possible applications. This time, however, a new section was introduced - one devoted to modern topics in liquid chemistry. Sometimes such a look over the borders of scientific specialties leads to interesting insights and original research solutions. Some of the papers presented during ISPCS15 are collected in this volume. Their diversity is representative of both the scope and character of this Seminar. The majority of the papers are research reports, but a review article and a paper focussed on problems connected with environmental protection are also included. This Conference has functioned for over a decade due to the permanent support of the rectors of both co-organizing universities: Professor Ivan Vakarchuk from Ivan Franko National University of Lviv and Professor Zygmunt Bąk from Jan Dlugosz University in Częstochowa. It is our pleasure, on behalf of the all participants of the past Seminars, to express our gratitude for this assistance. We would also like to thank all the invited speakers who kindly accepted our invitation, namely Professors Roman Gladyshevskii (Ivan Franko National University, Lviv, Ukraine), Mihaela Gulea (Laboratoire de Chimie Moleculare et Thioorganique, CAEN, France), Osama I Abd El-Salam (National Research Centre Dokki, Cairo, Egypt), Jarosław Lewkowski (University of Łódź, Łódź, Poland), Jean Ebothe (University of Reims Champagne-Ardenne, France), Alain Gibaud (University du Maine, Le Mans, France), and Zbigniew Czapla (University of Wrocław, Wrocław, Poland). Finally, it is both our duty and pleasure to express our gratitude for the work done by the referees. Without their efforts many of the papers in this volume would not have been improved. Bogdan Kotur, LvivPiotr Brągiel, Częstochowa

Students' explanations in complex learning of disciplinary programming

NASA Astrophysics Data System (ADS)

Vieira, Camilo

Computational Science and Engineering (CSE) has been denominated as the third pillar of science and as a set of important skills to solve the problems of a global society. Along with the theoretical and the experimental approaches, computation offers a third alternative to solve complex problems that require processing large amounts of data, or representing complex phenomena that are not easy to experiment with. Despite the relevance of CSE, current professionals and scientists are not well prepared to take advantage of this set of tools and methods. Computation is usually taught in an isolated way from engineering disciplines, and therefore, engineers do not know how to exploit CSE affordances. This dissertation intends to introduce computational tools and methods contextualized within the Materials Science and Engineering curriculum. Considering that learning how to program is a complex task, the dissertation explores effective pedagogical practices that can support student disciplinary and computational learning. Two case studies will be evaluated to identify the characteristics of effective worked examples in the context of CSE. Specifically, this dissertation explores students explanations of these worked examples in two engineering courses with different levels of transparency: a programming course in materials science and engineering glass box and a thermodynamics course involving computational representations black box. Results from this study suggest that students benefit in different ways from writing in-code comments. These benefits include but are not limited to: connecting xv individual lines of code to the overall problem, getting familiar with the syntax, learning effective algorithm design strategies, and connecting computation with their discipline. Students in the glass box context generate higher quality explanations than students in the black box context. These explanations are related to students prior experiences. Specifically, students with low ability to do programming engage in a more thorough explanation process than students with high ability. This dissertation concludes proposing an adaptation to the instructional principles of worked-examples for the context of CSE education.

[Comparison in dissolution behavior of ethical and over-the counter scopolamine butylbromide].

PubMed

Suzuki, Ichie; Miyazaki, Yasunori; Uchino, Tomonobu; Kagawa, Yoshiyuki

2011-01-01

Marketing authorization holders do not disclose any information on the pharmaceutical properties of over-the-counter drugs (OTC). When a drug is switched from a prescription drug to OTC, pharmacists can acquire that information from the corresponding ethical drug (ED) through the package insert, interview form, and so on. However, the pharmaceutical equivalence between ED and OTC is unclear. In this study, we examined the drug dissolution behavior of both ED and OTCs containing scopolamine butylbromide. Dissolution tests were performed by the paddle method using Japanese Pharmacopeia (JP) XV test fluids at pH 1.2, 4.0 and 6.8 and water based on the guidelines for bioequivalence studies of generic products. The dissolution profiles of OTCs differed significantly from ED showing a similarity factor (f2) value ranging from 8.9 to 42.9. Time until 85% dissolution ranged from 23 to 95 min and from 17 to 174 min at pH 1.2 and pH 6.8, respectively. Then JP XV disintegration tests were conducted to investigate differences in the disintegration process. The disintegration time of preparations showing delayed dissolution was prolonged compared to that of others, suggesting that the disintegration of the tablet or capsule is one of the important factors affecting the drug dissolution. These differences in the disintegration and drug dissolution might cause differences in the bioavailability of the drug. For patient safety, more detailed product information of OTCs should be supplied by the manufacturer, and not be assumed from that of corresponding ED.

Bayer Facts of Science Education XV: A View from the Gatekeepers—STEM Department Chairs at America's Top 200 Research Universities on Female and Underrepresented Minority Undergraduate STEM Students

NASA Astrophysics Data System (ADS)

Bayer Corporation

2012-06-01

Diversity and the underrepresentation of women, African-Americans, Hispanics and American Indians in the nation's science, technology, engineering and mathematics (STEM) fields are the subjects of the XV: A View from the Gatekeepers—STEM Department Chairs at America's Top 200 Research Universities on Female and Underrepresented Minority Undergraduate STEM Students. Annual public opinion research project commissioned by Bayer Corporation, the Bayer Facts surveys examine science education and science literacy issues. The 15th in the series and the fifth to explore diversity and underrepresentation, this research is a direct outgrowth of last year's results which found 40 percent of the country's female and underrepresented minority (URM) chemists and chemical engineers working today were discouraged from pursuing their STEM career at some point in their lives. US colleges were cited as places where this discouragement most often happened and college professors as the individuals most likely responsible. Does such discouragement still occur in American colleges today? To answer this and other questions about the undergraduate environment in which today's students make their career decisions, the survey polls 413 STEM department chairs at the nation's 200 top research universities and those that produce the highest proportion of female and URM STEM graduates. The survey also asks the chairs about their institutions track record recruiting and retaining female and URM STEM undergraduates, preparedness of these students to study STEM, the impact of traditional introductory STEM courses on female and URM students and barriers these students face pursuing their STEM degrees.

Electrochemical properties of doped lithium titanate compounds and their performance in lithium rechargeable batteries

NASA Astrophysics Data System (ADS)

Shenouda, Atef Y.; Murali, K. R.

Several substituted titanates of formula Li 4- xMg xTi 5- xV xO 12 (0 ≤ x ≤ 1) were synthesized (and investigated) as anode materials in rechargeable lithium batteries. Five samples labeled as S1-S5 were calcined (fired) at 900 °C for 10 h in air, and slowly cooled to room temperature in a tube furnace. The structural properties of the synthesized products have been investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and Fourier transmission infrared (FTIR). XRD explained that the crystal structures of all samples were monoclinic while S1 and S3 were hexagonal. The morphology of the crystal of S1 was spherical while the other samples were prismatic in shape. SEM investigations explained that S4 had larger grain size diameter of 15-16 μm in comparison with the other samples. S4 sample had the highest conductivity 2.452 × 10 -4 S cm -1. At a voltage plateau located at about 1.55 V (vs. Li +), S4 cell exhibited an initial specific discharge capacity of 198 mAh g -1. The results of cyclic voltammetry for Li 4- xMg xTi 5- xV xO 12 showed that the electrochemical reaction was based on Ti 4+/Ti 3+ redox couple at potential range from 1.5 to 1.7 V. There is a pair of reversible redox peaks corresponding to the process of Li + intercalation and de-intercalation in the Li-Ti-O oxides.

Est10: A Novel Alkaline Esterase Isolated from Bovine Rumen Belonging to the New Family XV of Lipolytic Enzymes

PubMed Central

Rodríguez, María Cecilia; Loaces, Inés; Amarelle, Vanesa; Senatore, Daniella; Iriarte, Andrés; Fabiano, Elena; Noya, Francisco

2015-01-01

A metagenomic fosmid library from bovine rumen was used to identify clones with lipolytic activity. One positive clone was isolated. The gene responsible for the observed phenotype was identified by in vitro transposon mutagenesis and sequencing and was named est10. The 367 amino acids sequence harbors a signal peptide, the conserved secondary structure arrangement of alpha/beta hydrolases, and a GHSQG pentapeptide which is characteristic of esterases and lipases. Homology based 3D-modelling confirmed the conserved spatial orientation of the serine in a nucleophilic elbow. By sequence comparison, Est10 is related to hydrolases that are grouped into the non-specific Pfam family DUF3089 and to other characterized esterases that were recently classified into the new family XV of lipolytic enzymes. Est10 was heterologously expressed in Escherichia coli as a His-tagged fusion protein, purified and biochemically characterized. Est10 showed maximum activity towards C4 aliphatic chains and undetectable activity towards C10 and longer chains which prompted its classification as an esterase. However, it was able to efficiently catalyze the hydrolysis of aryl esters such as methyl phenylacetate and phenyl acetate. The optimum pH of this enzyme is 9.0, which is uncommon for esterases, and it exhibits an optimal temperature at 40°C. The activity of Est10 was inhibited by metal ions, detergents, chelating agents and additives. We have characterized an alkaline esterase produced by a still unidentified bacterium belonging to a recently proposed new family of esterases. PMID:25973851

The curvature of sensitometric curves for Kodak XV-2 film irradiated with photon and electron beams.

PubMed

van Battum, L J; Huizenga, H

2006-07-01

Sensitometric curves of Kodak XV-2 film, obtained in a time period of ten years with various types of equipment, have been analyzed both for photon and electron beams. The sensitometric slope in the dataset varies more than a factor of 2, which is attributed mainly to variations in developer conditions. In the literature, the single hit equation has been proposed as a model for the sensitometric curve, as with the parameters of the sensitivity and maximum optical density. In this work, the single hit equation has been translated into a polynomial like function as with the parameters of the sensitometric slope and curvature. The model has been applied to fit the sensitometric data. If the dataset is fitted for each single sensitometric curve separately, a large variation is observed for both fit parameters. When sensitometric curves are fitted simultaneously it appears that all curves can be fitted adequately with a sensitometric curvature that is related to the sensitometric slope. When fitting each curve separately, apparently measurement uncertainty hides this relation. This relation appears to be dependent only on the type of densitometer used. No significant differences between beam energies or beam modalities are observed. Using the intrinsic relation between slope and curvature in fitting sensitometric data, e.g., for pretreatment verification of intensity-modulated radiotherapy, will increase the accuracy of the sensitometric curve. A calibration at a single dose point, together with a predetermined densitometer-dependent parameter ODmax will be adequate to find the actual relation between optical density and dose.

Est10: A Novel Alkaline Esterase Isolated from Bovine Rumen Belonging to the New Family XV of Lipolytic Enzymes.

PubMed

Rodríguez, María Cecilia; Loaces, Inés; Amarelle, Vanesa; Senatore, Daniella; Iriarte, Andrés; Fabiano, Elena; Noya, Francisco

2015-01-01

A metagenomic fosmid library from bovine rumen was used to identify clones with lipolytic activity. One positive clone was isolated. The gene responsible for the observed phenotype was identified by in vitro transposon mutagenesis and sequencing and was named est10. The 367 amino acids sequence harbors a signal peptide, the conserved secondary structure arrangement of alpha/beta hydrolases, and a GHSQG pentapeptide which is characteristic of esterases and lipases. Homology based 3D-modelling confirmed the conserved spatial orientation of the serine in a nucleophilic elbow. By sequence comparison, Est10 is related to hydrolases that are grouped into the non-specific Pfam family DUF3089 and to other characterized esterases that were recently classified into the new family XV of lipolytic enzymes. Est10 was heterologously expressed in Escherichia coli as a His-tagged fusion protein, purified and biochemically characterized. Est10 showed maximum activity towards C4 aliphatic chains and undetectable activity towards C10 and longer chains which prompted its classification as an esterase. However, it was able to efficiently catalyze the hydrolysis of aryl esters such as methyl phenylacetate and phenyl acetate. The optimum pH of this enzyme is 9.0, which is uncommon for esterases, and it exhibits an optimal temperature at 40 °C. The activity of Est10 was inhibited by metal ions, detergents, chelating agents and additives. We have characterized an alkaline esterase produced by a still unidentified bacterium belonging to a recently proposed new family of esterases.

Prediction of postural risk of fall initiation based on a two-variable description of body dynamics: position and velocity of center of mass.

PubMed

Honarvar, Mohammad Hadi; Nakashima, Motomu

2013-10-01

This research addresses the question: what is the risk of fall initiation at a certain human posture? There are postures from which no one is able to keep their balance and a fall will surely initiate (risk=1), and others from which everyone may regain their stability (risk=0). In other postures, only a portion of people can control their stability. One may interpret risk to chance of a fall to be initiated, and based on the portion of fallers assign a risk value to a given human posture (postural risk). Human posture can be mapped to a point in a 2-dimensional space: the x-v plane, the axes of which are horizontal components of the position and velocity of the center of mass of the body. For every pair of (x, v), the outcome of the balance recovery problem defines whether a person with a given strength level is able to regain their stability when released from a posture corresponding to that point. Using strength distribution data, we estimated the portion of the population who will initiate a fall if starting at a certain posture. A fast calculation approach is also introduced to replace the time-consuming method of solving the recovery problem many times. Postural risk of fall initiation for situations expressed by (x, v) pairs for the entire x-v plane is calculated and shown in a color-map. Copyright © 2013 Elsevier B.V. All rights reserved.

Summary of Lift and Lift/Cruise Fan Powered Lift Concept Technology

NASA Technical Reports Server (NTRS)

Cook, Woodrow L.

1993-01-01

A summary is presented of some of the lift and lift/cruise fan technology including fan performance, fan stall, ground effects, ingestion and thrust loss, design tradeoffs and integration, control effectiveness and several other areas related to vertical short takeoff and landing (V/STOL) aircraft conceptual design. The various subjects addressed, while not necessarily pertinent to specific short takeoff/vertical landing (STOVL) supersonic designs being considered, are of interest to the general field of lift and lift/cruise fan aircraft designs and may be of importance in the future. The various wind tunnel and static tests reviewed are: (1) the Doak VZ-4 ducted fan, (2) the 0.57 scale model of the Bell X-22 ducted fan aircraft, (3) the Avrocar, (4) the General Electric lift/cruise fan, (5) the vertical short takeoff and landing (V/STOL) lift engine configurations related to ingestion and consequent thrust loss, (6) the XV-5 and other fan-in-wing stall consideration, (7) hybrid configurations such as lift fan and lift/cruise fan or engines, and (8) the various conceptual design studies by air-frame contractors. Other design integration problems related to small and large V/STOL transport aircraft are summarized including lessons learned during more recent conceptual design studies related to a small executive V/STOL transport aircraft.

Modified Multiple Model Adaptive Estimation (M3AE) for Simultaneous Parameter and State Estimation

DTIC Science & Technology

1998-03-01

Contents Page Dedication : iv Acknowledgments v Table Of Contents vi List of Figures . . ; x List of Tables xv Abstract xvii Chapter 1 ...INTRODUCTION 1 1.1 Overview 1 1.2 Background 7 1.2.1 The Chi-Square Test 9 1.2.2 Generalized Likelihood Ratio (GLR) Testing 10 1.2.3 Multiple...M3AE Covariance Analysis 115 4.1.3 Simulations and Performance Analysis 121 4.1.3.1 Test Case 1 : aT = 32.0 124 4.1.3.2 Test Case 2: aT = 37.89, and

Composition of Aerosols Over the Continential U.S.

DTIC Science & Technology

1991-07-12

Soot Salt Unowm Fine vase CRAmRW LtAM , OR 14.2 5.3 3.9 46.S 10.7 10.1 1.5 S.9 2159.0 IMOU RIUISS, WIA 10.7 7.0 5.7 25.2 0.7 3.7 1.6 26.6 2112.0 LABS N...77.4 3211.0 L" EXAm CAVUS, XV 393.3 147.5 54.1 435.9 432.2 0.0 45.0 -6.8 1501.0 zSYCZ CA"WOK, Ut 525.5 197.1 𔃼.3 645.1 435.3 11.9 11.2 -146.3 1672.0

Manufacturing Methods and Technology. Project Execution Report.

DTIC Science & Technology

1984-05-01

U5/62"/3. 20 "°"’°’. . .. - 2 °* ’%7’. 471 FINAL STATUS REPORTS RLCEIVtD vURINU 2Nv HALF, CY6- . ( LLNT I NUE O) - o aD ’ 281 LUNSLRVATiUi4 bF tNERGY AT...KO IA w. hJO 0. xV W-2 -C -a aZ. 0 0 0 m C9 - I 0 MO m4a. W 19 6u Z ) -- 03. zWI 2 M 3 U- P- OCw 43 3B *u. 00 CKa I.-hAV . 40 2- w cc . U6 U- *~- -02

China’s Rise to Power: Revitalizing the Ties with the Republic of the Philippines to meet 21st Century Security Interests

DTIC Science & Technology

2009-01-01

a potential military conflict against China in the future. 20 1 Russell Ong , China’s Security Interests in the 21’t Century. (New York, NY: Routledge...Conflictfrom 1500 to 2000 (New York: Random House, 1987), xxii. 11 Ong , China’s Security Interests in the 21st Centwy, 124. 12 Qiao Liang, and Wang Xiangsui...Strategies and their Implicationsfor the United States. xiv. 16 Ibid. xv. 17 Ibid. 18 Ong , China’s Security Interests in the 21’t Centwy, 124. 19 Ibid. 20

Fat and Sugar Metabolism During Exercise in Patients With Metabolic Myopathy

ClinicalTrials.gov

2017-08-31

Metabolism, Inborn Errors; Lipid Metabolism, Inborn Errors; Carbohydrate Metabolism, Inborn Errors; Long-Chain 3-Hydroxyacyl-CoA Dehydrogenase Deficiency; Glycogenin-1 Deficiency (Glycogen Storage Disease Type XV); Carnitine Palmitoyl Transferase 2 Deficiency; VLCAD Deficiency; Medium-chain Acyl-CoA Dehydrogenase Deficiency; Multiple Acyl-CoA Dehydrogenase Deficiency; Carnitine Transporter Deficiency; Neutral Lipid Storage Disease; Glycogen Storage Disease Type II; Glycogen Storage Disease Type III; Glycogen Storage Disease Type IV; Glycogen Storage Disease Type V; Muscle Phosphofructokinase Deficiency; Phosphoglucomutase 1 Deficiency; Phosphoglycerate Mutase Deficiency; Phosphoglycerate Kinase Deficiency; Phosphorylase Kinase Deficiency; Beta Enolase Deficiency; Lactate Dehydrogenase Deficiency; Glycogen Synthase Deficiency

Workshop on Compound Semiconductor Devices and Integrated Circuits held in Europe (24th) on May 29 - Jun 2, 2000 in Aegean Sea, Greece

DTIC Science & Technology

2000-06-02

Telecomunicazioni, Torino. Italy 1.30pm XIV.4 "The Reliability of AlGalnP Visible Light Emitting Diodes " D.V. MORGAN and I. Al-Ofi Cardiff University...XV.5 "Green SQW InGaN light - emitting diodes on Si( 111) by metalorganic vapor phase epitaxy" E. Feltin, S. Dalmasso, H. Lareche, B. Beaumont, P. de...effect on GaN-based high efficiency light emitting diodes of a surprisingly high density of TDs has led to considerable interest in determining their

A Study of the Nearfield of an Excited Spherical Shell.

DTIC Science & Technology

1980-03-17

8217 tte exact wave harmonic series and the approximate Geometrical Theory of Diffraction (GTD) were used to predict the acoustic near field of an elastic...rr) )1/3 n 4 n14 XV e i+ (424 (ka) (2h (ka) nn an1 % Tte SkaI/ rA’ (k)2 nn in Ap ndi B]. =Q (ikc)~ (4.25)h(1 (a n Tn whee i adeayftore fo acosi prpaa3o...Approach to Scattering from Elastic Spherical Shells," NUC TP425, September 1974, Naval Undersea Center, San Diego, California. 36. Pathak, P. H. and

Airport Activity Statistics of Certificated Route Air Carriers

DTIC Science & Technology

1988-12-31

3491.65 4322.55 MEVA N 0.00 (INTERUOUNTA0N REGO AL) XV -PRESIDENTIAL AMRWAYS .................. DOMESTIC S 4 TEXARKANA N 0.00 (JA(RMA MUN PALWEBB Fl F E...DOMESTIC DC-9-30 402 90 492 B-737-100/200. 1998 19 2017 B-737-300 .......... 1089 5 1094 B-737-30LR 103 3 106 B-727-200 1 1...OMESTIC 8-737-3001R 103 3 106 8-737-300 1089 5 1094 8-737-100/200. 1998 19 2017 DC-9-30 ............. 402 90 492 DC-- ............. 219 1 220 B-727-200 1

Feasibility Study for a Structurally Efficient, Multi-Modal Shelter Concept Utilizing Advanced Technology Production Techniques

DTIC Science & Technology

1974-02-01

II I~ x p:1 ns ion P roc cuurc Longitudin:-11 Section, Container Mod·c Configuration r Ex p :m s i on Pro c c d u r e Longitudinal Section...No . I II. I I I. IV. v. VI. VII. VIII. IX. X . XI. XII. XIII. XIV. XV . XVI. XVII . XVIII . XIX. XX. XXI. XXII . XXI II. XXIV...mat e rial s and examples from these categories . Glass Fibers Glass Mi c r os pheres As bestos Carbon Graphite Ce llulose Cotton Jute Rayo n

Wind-tunnel investigation at low speeds of a model of the Kestrel (XV-6A) vectored-trust V/STOL airplane

NASA Technical Reports Server (NTRS)

Margason, R. J.; Vogler, R. D.; Winston, M. M.

1972-01-01

Longitudinal and lateral stability data were obtained with the model out of and in ground effect over a moving ground plane for a range of model angles of attack and sideslip at various thrust coefficients. These data were taken primarily at thrust coefficients which simulate transition speeds on the airplane between hover and 200 knots. Some data, however, represent the effect of thrust deflection at speeds up to 350 knots. Also presented are the effects of control-surface deflections and interference between the jets and free stream.

Effect of additional etching and ethanol-wet bonding on the dentin bond strength of one-step self-etch adhesives

PubMed Central

Ahn, Joonghee; Jung, Kyoung-Hwa; Son, Sung-Ae; Hur, Bock; Kwon, Yong-Hoon

2015-01-01

Objectives This study examined the effects of additional acid etching on the dentin bond strength of one-step self-etch adhesives with different compositions and pH. The effect of ethanol wetting on etched dentin bond strength of self-etch adhesives was also evaluated. Materials and Methods Forty-two human permanent molars were classified into 21 groups according to the adhesive types (Clearfil SE Bond [SE, control]; G-aenial Bond [GB]; Xeno V [XV]; Beauti Bond [BB]; Adper Easy Bond [AE]; Single Bond Universal [SU]; All Bond Universal [AU]), and the dentin conditioning methods. Composite resins were placed on the dentin surfaces, and the teeth were sectioned. The microtensile bond strength was measured, and the failure mode of the fractured specimens was examined. The data were analyzed statistically using two-way ANOVA and Duncan's post hoc test. Results In GB, XV and SE (pH ≤ 2), the bond strength was decreased significantly when the dentin was etched (p < 0.05). In BB, AE and SU (pH 2.4 - 2.7), additional etching did not affect the bond strength (p > 0.05). In AU (pH = 3.2), additional etching increased the bond strength significantly (p < 0.05). When adhesives were applied to the acid etched dentin with ethanol-wet bonding, the bond strength was significantly higher than that of the no ethanol-wet bonding groups, and the incidence of cohesive failure was increased. Conclusions The effect of additional acid etching on the dentin bond strength was influenced by the pH of one-step self-etch adhesives. Ethanol wetting on etched dentin could create a stronger bonding performance of one-step self-etch adhesives for acid etched dentin. PMID:25671215

Experimental measurements and Monte Carlo simulations of dose perturbation around a nonradioactive brachytherapy seed due to 6- and 18-MV photons.

PubMed

Steinman, James Paul; Bakhtiari, Mohammad; Malhotra, Harish Kumar

2012-01-01

Radioactive seeds used in permanent prostate brachytherapy are composed of high-Z metals and may exceed 100 in a patient. If supplemental external beam treatment is administered afterward, the seeds may cause substantial dose perturbation, which is being investigated in this article. Film measurements using 6-MV beam were primarily carried out using Kodak XV2 film layered above and below a nonradioactive iodine-125 ((125)I) seed. Monte Carlo simulations were carried out using DOSXYZnrc. Other experimental comparisons looked at changing beam energy, depth, and field size, including two opposing fields' pair. Effect of multiple seeds spatially spaced 0.5cm vertically was also studied. For a single (125)I seed, on XV film, there is a localized dose enhancement of 6.3% upstream and -10.9% downstream. With two opposing fields, a cold spot around the seed of ∼3% was noticed. Increasing beam energy and field size decreased the magnitude of this effect, whereas the effect was found to increase with the increasing Z of material. DOSXYZnrc and EBT-2 film verified maximum dose enhancement of +15% upstream and -20% downstream of the (125)I seed surface. In general, the dose perturbation because of the seeds was spatially limited to ∼2mm upstream and ∼5mm downstream to the incident beam. Similar to other heterogeneities, the seeds perturbation depends on incident beam energy, field size, and its Z. With multiple seeds spatially apart and multiple radiation fields routinely used in external beam radiotherapy, the cumulative effect may not result in clinically significant dose perturbation. Copyright © 2012 American Brachytherapy Society. Published by Elsevier Inc. All rights reserved.

Diffuse X-ray sky in the Galactic center

NASA Astrophysics Data System (ADS)

Koyama, Katsuji

2018-01-01

The Galactic diffuse X-ray emission (GDXE) in the Milky Way Galaxy is spatially and spectrally decomposed into the Galactic center X-ray emission (GCXE), the Galactic ridge X-ray emission (GRXE), and the Galactic bulge X-ray emission (GBXE). The X-ray spectra of the GDXE are characterized by the strong K-shell lines of the highly ionized atoms, and the brightest lines are the K-shell transition (principal quantum number transition of n = 2 → 1) of neutral iron (Fe I-Kα), He-like iron (Fe XXV-Heα), and He-like sulfur (S XV-Heα). Accordingly, the GDXE is composed of a high-temperature plasma of ˜7 keV (HTP) and a low-temperature plasma of ˜1 keV, which emit the Fe XXV-Heα and S XV-Heα lines, respectively. The Fe I-Kα line is emitted from nearly neutral irons, and hence the third component of the GDXE is a cool gas (CG). The Fe I-Kα distribution in the GCXE region is clumpy (Fe I-Kα clump), associated with giant molecular cloud (MC) complexes (Sagittarius A, B, C, D, and E) in the central molecular zone. The origin of the Fe I-Kα clumps is the fluorescence and Thomson scattering from the MCs irradiated by past big flares of the supermassive black hole Sagittarius A*. The scale heights and equivalent widths of the Fe I-Kα, Fe XXV-Heα, and Fe XXVI-Lyα (n = 2 → 1 transition of H-like iron) lines are different among the GCXE, GBXE, and GRXE. Therefore, their structures and origins are separately examined. This paper gives an overview of the research history and the present understandings of the GDXE, while in particular focusing on the origin of the HTP and CG in the GCXE.

Transport properties of lithium ions doped vanado-bismuth-tellurite glasses

NASA Astrophysics Data System (ADS)

Keshavamurthy, K.; Eraiah, B.

2016-05-01

The glasses of composition (65-x)V2O5-xLi2O-20TeO2-15Bi2O3 (x = 15 and 25 mol%) were prepared by conventional melt quenching method and their electrical conductivity and dielectric measurements have been carried out in the frequency range 40Hz to 6MHz over a temperature 373 to 473 K. The conductivity values increased with both Li2O concentration and temperature. Interestingly, the dielectric response showed the existence of a negative capacitance effect in the present glass system and concluded that this effect arose from the presence of external inductive reactance.

The ultraviolet bands of the CO2/plus/ ion in comets

NASA Astrophysics Data System (ADS)

Festou, M. C.; Feldman, P. D.; Weaver, H. A.

1982-05-01

Eight comets are studied with the International Ultraviolet Explorer spectrographs. The existence of the CO2(plus) ion in a comet is confirmed through the presence of the 2890 A doublet in at least three of these objects. Spatial and spectral resolution obtained in comets Bradfield (1979 X) and Seargent (1978 XV) permit a discussion of the production mechanisms of this ion. The spectra reveal new ionic features in the 3100-3400 A range, which are attributed to resonance fluorescence of the Fox-Duffendack-Barker system of the CO2(plus) ion and, near 3350 A, to the OH(plus) ion.

A Dynamic Model of an Axisymmetric, Transversely Isotropic, Fluid-Loaded, Fully Elastic Cylindrical Shell

DTIC Science & Technology

2010-01-11

and circumferential directions. These equations are fX XK £rr =—<Jrr --^-a9d ~^~axx » tr tr hx fX XV £0e =- — °’rr + — (766 —~^~axx » hr tr tx vrx ...constants in equations (1) and (2) can be solved for in terms of engineering constants. They are cll = ’ \\\\j) (1 + vrx )(1 - urx - 2vrxvxr) Erorx(l...oxr) > (14) (^ + uny(\\-u„-2urxuxr) c13 = > U->) Eruxr(\\- vrx ) c33=—« : r> (16) Vrx <\\- Vrx -2»rx»xr) and CA4=Gxr = .n E* ,- (17) 2(l + uxr

Loves Park Creek, Loves Park, Illinois Local Flood Protection. General Design Memorandum with Environmental Assessment. Revision

DTIC Science & Technology

1990-06-01

accelssCo, ~~e 61:6 ififectrica/ ca ndul’ -Aaq Accas hatch tSelf _____,?q ’EL /4s0 ~~~~~~~c ~ ~ ~ ~ s c) Q a~ri ty 5 iate I i q’ ,mfi AI r IIAcce ss shai...Goverment Audit F-il Article XIII - Federal and State Laws F-il Article XIV - Relationship of Parties F-il Article XV - Officials not to Benefit F-l1...shall not exceed the actual audited , allowable costs of Pebble Creek Dam that are allocable to the Project, nor shall the credits exceed the value of the

Positive Identification of Microgram Quantities of Asbestos Using Infrared Spectroscopy,

DTIC Science & Technology

1981-09-01

O’Connor 13 originally showed that amosite and crocidolite contain strong and characteristic SiO infrared -1 absorption bands at 1200-900 cm , and...Rhodesia ’ :1 G I 0X I I I IW _400 V 30 I0 2000__00__00 _ So 4000 3500 3O00 2500 2000 1500 1000 500 • --- m --’a ma ai I I i l I Ii i .. ... -8...asbestos IIN. " ii Xv I I I Il I-,, i i1 400’ 3500 3000 2500 2000 1500 1000 S0 -10- B. Infrared Spectra of Some Common Asbestos Substitutes. Asbestos

Monitoring and Evaluation of Smolt Migration in the Columbia Basin : Volume XV : Evaluation of the 2007 Predictions of the Run-Timing of Wild and Hatchery-Reared Salmon and Steelhead Smolts to Rock Island, Lower Granite, McNary, John Day, and Bonneville Dams using Program RealTime.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Griswold, Jim; Townsend, Richard L.; Skalski, John R.

Program RealTime provided monitoring and forecasting of the 2007 inseason outmigrations via the internet for 26 PIT-tagged stocks of wild ESU Chinook salmon and steelhead to Lower Granite and/or McNary dams, one PIT-tagged hatchery-reared ESU of sockeye salmon to Lower Granite Dam, one PIT-tagged wild stock of sockeye salmon to McNary Dam, and 20 passage-indexed runs-at-large, five each to Rock Island, McNary, John Day, and Bonneville dams. Nineteen stocks are of wild yearling Chinook salmon which were captured, PIT-tagged, and released at sites above Lower Granite Dam in 2007 and have at least one year's historical migration data previous tomore » the 2007 migration. These stocks originate in 19 tributaries of the Salmon, Grande Ronde and Clearwater Rivers, all tributaries to the Snake River, and are subsequently detected through tag identification and monitored at Lower Granite Dam. Seven wild PIT-tagged runs-at-large of Snake or Upper Columbia River ESU salmon and steelhead were monitored at McNary Dam. Three wild PIT-tagged runs-at-large were monitored at Lower Granite Dam, consisting of the yearling and subyearling Chinook salmon and the steelhead runs. The hatchery-reared PIT-tagged sockeye salmon stock from Redfish Lake was monitored outmigrating through Lower Granite Dam. Passage-indexed stocks (stocks monitored by FPC passage indices) included combined wild and hatchery runs-at-large of subyearling and yearling Chinook, coho, and sockeye salmon, and steelhead forecasted to Rock Island, McNary, John Day, and Bonneville dams.« less

SU-E-T-132: Dosimetric Impact of Positioning Errors in Hypo-Fractionated Cranial Radiation Therapy Using Frameless Stereotactic BrainLAB System

DOE Office of Scientific and Technical Information (OSTI.GOV)

Keeling, V; Jin, H; Ali, I

2014-06-01

Purpose: To determine dosimetric impact of positioning errors in the stereotactic hypo-fractionated treatment of intracranial lesions using 3Dtransaltional and 3D-rotational corrections (6D) frameless BrainLAB ExacTrac X-Ray system. Methods: 20 cranial lesions, treated in 3 or 5 fractions, were selected. An infrared (IR) optical positioning system was employed for initial patient setup followed by stereoscopic kV X-ray radiographs for position verification. 6D-translational and rotational shifts were determined to correct patient position. If these shifts were above tolerance (0.7 mm translational and 1° rotational), corrections were applied and another set of X-rays was taken to verify patient position. Dosimetric impact (D95, Dmin,more » Dmax, and Dmean of planning target volume (PTV) compared to original plans) of positioning errors for initial IR setup (XC: Xray Correction) and post-correction (XV: X-ray Verification) was determined in a treatment planning system using a method proposed by Yue et al. (Med. Phys. 33, 21-31 (2006)) with 3D-translational errors only and 6D-translational and rotational errors. Results: Absolute mean translational errors (±standard deviation) for total 92 fractions (XC/XV) were 0.79±0.88/0.19±0.15 mm (lateral), 1.66±1.71/0.18 ±0.16 mm (longitudinal), 1.95±1.18/0.15±0.14 mm (vertical) and rotational errors were 0.61±0.47/0.17±0.15° (pitch), 0.55±0.49/0.16±0.24° (roll), and 0.68±0.73/0.16±0.15° (yaw). The average changes (loss of coverage) in D95, Dmin, Dmax, and Dmean were 4.5±7.3/0.1±0.2%, 17.8±22.5/1.1±2.5%, 0.4±1.4/0.1±0.3%, and 0.9±1.7/0.0±0.1% using 6Dshifts and 3.1±5.5/0.0±0.1%, 14.2±20.3/0.8±1.7%, 0.0±1.2/0.1±0.3%, and 0.7±1.4/0.0±0.1% using 3D-translational shifts only. The setup corrections (XC-XV) improved the PTV coverage by 4.4±7.3% (D95) and 16.7±23.5% (Dmin) using 6D adjustment. Strong correlations were observed between translation errors and deviations in dose coverage for XC. Conclusion: The initial BrainLAB IR system based on rigidity of the mask-frame setup is not sufficient for accurate stereotactic positioning; however, with X-ray imageguidance sub-millimeter accuracy is achieved with negligible deviations in dose coverage. The angular corrections (mean angle summation=1.84°) are important and cause considerable deviations in dose coverage.« less

Reviewing a Reading Program: Professional Development Module. Facilitator's Guide

ERIC Educational Resources Information Center

Kosanovich, Marcia; Jordan, Georgia; Arndt, Elissa; VanSciver, Mary; Wahl, Michelle; Rissman, Lila

2008-01-01

This "Facilitator's Guide" has been prepared for presenters of the Reviewing a Reading Program professional development training. It is one of three pieces comprising a suite of materials on reviewing reading programs: this "Guide", the "Reviewing a Reading Program Participant's Guide" and the "Reviewing a Reading Program" Professional Development…

76 FR 65428 - Classification and Program Review

Federal Register 2010, 2011, 2012, 2013, 2014

2011-10-21

... review will be an abbreviated program review meant to focus on an inmate's programming activities. This... during his/her incarceration. The plan will ordinarily include work and programming activities to help... an inmate's programming activities. This shortened version of the more thorough program review will...

2012 DOE Vehicle Technologies Program Annual Merit Review

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

The 2012 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting was held May 14-18, 2012 in Crystal City, Virginia. The review encompassed all of the work done by the Hydrogen Program and the Vehicle Technologies Program: a total of 309 individual activities were reviewed for Vehicle Technologies, by a total of 189 reviewers. A total of 1,473 individual review responses were received for the technical reviews.

7 CFR 205.622 - Review of approved State organic programs.

Code of Federal Regulations, 2010 CFR

2010-01-01

...) ORGANIC FOODS PRODUCTION ACT PROVISIONS NATIONAL ORGANIC PROGRAM Administrative State Organic Programs § 205.622 Review of approved State organic programs. The Secretary will review a State organic program... 7 Agriculture 3 2010-01-01 2010-01-01 false Review of approved State organic programs. 205.622...

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kastner, S.O.; Bhatia, A.K.

A generalized method for obtaining individual level population ratios is used to obtain relative intensities of extreme ultraviolet Fe XV emission lines in the range 284 --500 A, which are density dependent for electron densities in the tokamak regime or higher. Four lines in particular are found to attain quite high intensities in the high-density limit. The same calculation provides inelastic contributions to linewidths. The method connects level populations and level widths through total probabilities t/sub i/j, related to ''taboo'' probabilities of Markov chain theory. The t/sub i/j are here evaluated for a real atomic system, being therefore of potentialmore » interest to random-walk theorists who have been limited to idealized systems characterized by simplified transition schemes.« less

Development of a low-cost airborne ultrasound sensor for the detection of brick joints behind a wall painting.

PubMed

García-Diego, Fernando-Juan; Bravo, José María; Pérez-Miralles, Juan; Estrada, Héctor; Fernández-Navajas, Angel

2012-01-01

Non-destructive methods are of great interest for the analysis of cultural heritage. Among the different possible techniques, this paper presents a low cost prototype based on the emission and reception of airborne ultrasound without direct contact with the test specimen. We successfully performed a method test for the detection of brick joints under a XV th century Renaissance fresco of the Metropolitan Cathedral of the city of Valencia (Spain). Both laboratory and in situ results are in agreement. Using this prototype system, an early moisture detection system has been installed in the dome that supports the fresco. The result is encouraging and opens interesting prospects for future research.

Flight Flutter Testing of Rotary Wing Aircraft Using a Control System Oscillation Technique

NASA Technical Reports Server (NTRS)

Yen, J. G.; Viswanathan, S.; Matthys, C. G.

1976-01-01

A flight flutter testing technique is described in which the rotor controls are oscillated by series actuators to excite the rotor and airframe modes of interest, which are then allowed to decay. The moving block technique is then used to determine the damped frequency and damping variation with rotor speed. The method proved useful for tracking the stability of relatively well damped modes. The results of recently completed flight tests of an experimental soft-in-plane rotor are used to illustrate the technique. Included is a discussion of the application of this technique to investigation of the propeller whirl flutter stability characteristics of the NASA/Army XV-15 VTOL tilt rotor research aircraft.

Launch - Apollo XV Space Vehicle - KSC

NASA Image and Video Library

1971-07-26

S71-41356 (26 July 1971) --- The huge, 363-feet tall Apollo 15 (Spacecraft 112/Lunar Module 10/Saturn 510) space vehicle is launched from Pad A, Launch Complex 39, Kennedy Space Center (KSC), Florida, at 9:34:00:79 a.m. (EDT), July 26, 1971, on a lunar landing mission. Aboard the Apollo 15 spacecraft were astronauts David R. Scott, commander; Alfred M. Worden, command module pilot; and James B. Irwin, lunar module pilot. Apollo 15 is the National Aeronautics and Space Administration's (NASA) fourth manned lunar landing mission. While astronauts Scott and Irwin will descend in the Lunar Module (LM) to explore the moon, astronaut Worden will remain with the Command and Service Modules (CSM) in lunar orbit.

Meta-Review: Systematic Assessment of Program Review

ERIC Educational Resources Information Center

Harlan, Brian

2012-01-01

Over 20 years ago, Robert J. Barak and Barbara E. Breier suggested incorporating a regular assessment of the entire program review system into the review schedule in order to ensure that the system itself is as efficient and effective as the programs under review. Barak and Breier's seminal book on the goals and processes of program review has…

28 CFR 524.23 - Program reviews.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Program reviews. 524.23 Section 524.23... TRANSFER CLASSIFICATION OF INMATES Youth Corrections Act (YCA) Programs § 524.23 Program reviews. Staff shall conduct periodic reviews of the inmate's program plan and shall modify the plan in accordance with...

42 CFR 456.703 - Drug use review program.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 42 Public Health 4 2010-10-01 2010-10-01 false Drug use review program. 456.703 Section 456.703... (CONTINUED) MEDICAL ASSISTANCE PROGRAMS UTILIZATION CONTROL Drug Use Review (DUR) Program and Electronic Claims Management System for Outpatient Drug Claims § 456.703 Drug use review program. (a) General...

42 CFR 456.703 - Drug use review program.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 42 Public Health 4 2014-10-01 2014-10-01 false Drug use review program. 456.703 Section 456.703... (CONTINUED) MEDICAL ASSISTANCE PROGRAMS UTILIZATION CONTROL Drug Use Review (DUR) Program and Electronic Claims Management System for Outpatient Drug Claims § 456.703 Drug use review program. (a) General...

42 CFR 456.703 - Drug use review program.

Code of Federal Regulations, 2012 CFR

2012-10-01

... 42 Public Health 4 2012-10-01 2012-10-01 false Drug use review program. 456.703 Section 456.703... (CONTINUED) MEDICAL ASSISTANCE PROGRAMS UTILIZATION CONTROL Drug Use Review (DUR) Program and Electronic Claims Management System for Outpatient Drug Claims § 456.703 Drug use review program. (a) General...

42 CFR 456.703 - Drug use review program.

Code of Federal Regulations, 2013 CFR

2013-10-01

... 42 Public Health 4 2013-10-01 2013-10-01 false Drug use review program. 456.703 Section 456.703... (CONTINUED) MEDICAL ASSISTANCE PROGRAMS UTILIZATION CONTROL Drug Use Review (DUR) Program and Electronic Claims Management System for Outpatient Drug Claims § 456.703 Drug use review program. (a) General...

42 CFR 456.703 - Drug use review program.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 42 Public Health 4 2011-10-01 2011-10-01 false Drug use review program. 456.703 Section 456.703... (CONTINUED) MEDICAL ASSISTANCE PROGRAMS UTILIZATION CONTROL Drug Use Review (DUR) Program and Electronic Claims Management System for Outpatient Drug Claims § 456.703 Drug use review program. (a) General...

Characteristics of private-sector managed care for mental health and substance abuse treatment.

PubMed

Garnick, D W; Hendricks, A M; Dulski, J D; Thorpe, K E; Horgan, C

1994-12-01

This study examined diversity during the late 1980s in managed care programs for mental health, alcohol abuse, and drug abuse to identify ways in which research can generate more meaningful data on the effectiveness of utilization review programs. Telephone interviews were conducted with representatives of utilization review programs for employee health insurance plans in 31 firms that employed 2.1 million people in 1990. Questions addressed qualifications of personnel, clinical criteria to authorize care, integration with employee assistance plans, penalties for not complying with utilization review procedures, outpatient review, and carve out of mental health and substance abuse review. Large variations in utilization review programs were found. Programs employed a range of review personnel and used a variety of clinical criteria to authorize care. More than two-thirds did not carve out mental health and substance abuse review from medical-surgical review. Some firms' employee assistance plans were integrated with utilization review programs, while others remained unintegrated. Penalties for not following program procedures varied widely, as did review of outpatient services. Because of trends toward even more diversity in utilization review programs in the 1990s, research that identifies the specific features of managed care programs that hold most promise for controlling costs while maintaining quality of care will increasingly be needed.

Thermoelectric Power Measurements of xSb-(60- x)V2O5-40TeO2 Glasses

NASA Astrophysics Data System (ADS)

Souri, Dariush; Siahkali, Zahra; Moradi, Mohammad

2016-01-01

Bulk xSb-(60- x)V2O5-40TeO2 glass systems (with 0 ≤ x ≤ 15 in mol.%) were prepared by using the standard melt quenching procedure, and their Seebeck coefficients, S, were measured within the temperature range of 250-470 K. For the understudied samples, the thermoelectric powers at typical temperatures of 296 K, 370 K and 407 K were measured, and were in the ranges (-405) to (-698) μVK-1, (-394) to (-685) μVK-1 and (-392) to (-691) μVK-1, respectively. The selection of typical temperatures aims at the evaluation of the trend of figure of merit in these glasses. Based on the negative sign of S, the present glasses were found to be n-type semiconductors; also, the experimental relationship between S and C V ( C V = [V4+]/ V tot is the ratio of the content of reduced vanadium ions) satisfied the theoretical Heikes formula, relating S to ln( C V/1 - C V), and also the Mackenzie formula, relating S to ln([V5+]/[V4+]). The parameter α^' in Heikes formula was determined to be ≪1 and so the small polaron hopping conduction mechanism was certified to occur in these glasses; this result confirms the previously reported results of direct current (DC) electrical conduction experiments on the same samples. Results of thermoelectric measurements show the compositional dependence of S on Sb content and C V, indicating that S increases with the increase in Sb content; these results show that the dominant factor determining S is C V. Also, figure of merit was determined for these glasses, which show the highest value for 60V2O5-40TeO2 glass system, as a good candidate in thermoelectric applications.

Burkholderia ambifaria and B. caribensis Promote Growth and Increase Yield in Grain Amaranth (Amaranthus cruentus and A. hypochondriacus) by Improving Plant Nitrogen Uptake

PubMed Central

Parra-Cota, Fannie I.; Peña-Cabriales, Juan J.; de los Santos-Villalobos, Sergio; Martínez-Gallardo, Norma A.; Délano-Frier, John P.

2014-01-01

Grain amaranth is an emerging crop that produces seeds having high quality protein with balanced amino-acid content. However, production is restricted by agronomic limitations that result in yields that are lower than those normally produced by cereals. In this work, the use of five different rhizobacteria were explored as a strategy to promote growth and yields in Amaranthus hypochondriacus cv. Nutrisol and A. cruentus cv. Candil, two commercially important grain amaranth cultivars. The plants were grown in a rich substrate, high in organic matter, nitrogen (N), and phosphorus (P) and under greenhouse conditions. Burkholderia ambifaria Mex-5 and B. caribensis XV proved to be the most efficient strains and significantly promoted growth in both grain amaranth species tested. Increased grain yield and harvest index occurred in combination with chemical fertilization when tested in A. cruentus. Growth-promotion and improved yields correlated with increased N content in all tissues examined. Positive effects on growth also occurred in A. cruentus plants grown in a poor soil, even after N and P fertilization. No correlation between non-structural carbohydrate levels in roots of inoculated plants and growth promotion was observed. Conversely, gene expression assays performed at 3-, 5- and 7-weeks after seed inoculation in plants inoculated with B. caribensis XV identified a tissue-specific induction of several genes involved in photosynthesis, sugar- and N- metabolism and transport. It is concluded that strains of Burkholderia effectively promote growth and increase seed yields in grain amaranth. Growth promotion was particularly noticeable in plants grown in an infertile soil but also occurred in a well fertilized rich substrate. The positive effects observed may be attributed to a bio-fertilization effect that led to increased N levels in roots and shoots. The latter effect correlated with the differential induction of several genes involved in carbon and N metabolism and transport. PMID:24533068

Independence Community College Program Review Process.

ERIC Educational Resources Information Center

Romine, Robert J.

Program review at Independence Community College (ICC) is structured so that every program of study will undergo review within a 5-year period. The purpose of the program review effort is to assess the relationship of inputs to outcomes, so that actual outcomes can be compared to expected outcomes. Each program of study is evaluated according to…

Reregistration and Other Review Programs Predating Pesticide Registration Review

EPA Pesticide Factsheets

Before launching the registration review program, EPA reevaluated existing registered pesticides through programs including Pesticide Reregistration and Tolerance Reassessment, Product Reregistration, and Special Review.

48 CFR 519.7016 - Program review.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Program review. 519.7016 Section 519.7016 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS GSA Mentor-Protégé Program 519.7016 Program review. At the conclusion of...

Seiche in a Tub, Lake and Sea

NASA Astrophysics Data System (ADS)

Bulat, Sanja; Bozic, Mirjana; Stojcic, Biljana

2017-04-01

SEICHE in a TUB, LAKE and SEA Sanja Bulat1, Biljana Stojičić2 and Mirjana Božić3 1Primary School „Branislav Nušić", Belgrade, Serbia 2Zemun Gymnasium, Belgrade, Serbia 3Mirjana Božić, Institute of Physics, Belgrade, Serbia The problem given to students at the XV International Physics Olympiad, which took place in 1984 in Sigtuna in Sweden [1], inspired us to learn more about the natural phenomena "seiche" and to make related experiments and observations with our students. Seiching is an oscillatory natural phenomena, seen in the lakes which are normally long compared with the depth and also narrow. The entire water volume oscillates, like a coffee in a cup that one carries to a waiting guest. There are many such lakes in Sweden and phenomena is studied quantitatively by recording oscillations of the water surface level in various points along the lake, in particular at two opposite ends of the lake. One finds that the oscillations at opposite ends of the lake have opposite phases [1,2]. With our students we studied experimentally and theoretically seiching in a long rectangular container/tub. We look at water surface after shortly lifting and returning back one end of a tub. We recorded the oscillations and analyzed them with the Program Tracker [3]. The measured period of oscillations is compared with the periods derived using three theoretical models. The period is proportional to the length of a tub and inversely proportional to the square root of the water height. The proportionality constant slightly differs in various models. Studying the literature we learned that seiche was recorded at the Geneva lake [2], as well as on Adriatic sea [4,5]. In various occasions we discussed with our colleagues from the Adriatic region about their eventual interest to establish, in collaboration with relevant institutions, a network of water level recording stations, like around Geneva lake [2], and to involve students to follow and participate in these measurements and study seiche in the Adriatic sea. We plan to discuss about such collaborative project with participants at the GIFT Workshop. Also, we think to start observing and measuring at the Sava Lake in Belgrade. References 1.Past IPhO Problems and Solutions, IPhO 1984 (XV Sigtuna, Sweden), http://ipho.org/problems-and-solutions_3.html#1984 2. U. Lemmin, C. H. Mortimer E. Bauerle, Internal seiche dynamics in Lake Geneva, Limnol. Oceanogr., 50(1) (2005) 207-216. 3. Tracker Video Analysis and Modelling Tool, http://www.opensourcephysics.org/webdocs/Tools.cfm?t=Tracker 4. A. E. Gill, Atmosphere-Ocean Dynamics (Academic Press, London, 1982) p. 112-115; 373- 375. 5. N. Leder and M. Orlić, Fundamental Adriatic seiche recorded by current meters, Annales Geophysicae, 22 (2004) 1449-1464.

2013 Building Technologies Office Program Peer Review Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

none,

2013-11-01

The 2013 Building Technologies Office Program Peer Review Report summarizes the results of the 2013 Building Technologies Office (BTO) peer review, which was held in Washington, D.C., on April 2–4, 2013. The review was attended by over 300 participants and included presentations on 59 BTO-funded projects: 29 from BTO’s Emerging Technologies Program, 20 from the Commercial Buildings Integration Program, 6 from the Residential Buildings Integration Program, and 4 from the Building Energy Codes Program. This report summarizes the scores and comments provided by the independent reviewers for each project.

Measurement And Modeling Of Fe VIII To Fe XVI M-shell Emission In The Extreme Ultraviolet

NASA Astrophysics Data System (ADS)

Beiersdorfer, Peter; Lepson, J. K.; Hurwitz, M.

2007-05-01

The solar EUV emission near 200 Å is presently being studied with high resolution with the Cosmic Hot Interstellar Plasma Spectrometer (CHIPS), which focuses on the emission between 90 and 270 Å, and with the EUV Imaging Spectrometer on Hinode, which focuses on the region 180 to 204 Å and 250 to 290 Å. The Solar EUV Experiment on the TIMED spacecraft also observes this spectral band but with greatly reduced resolution. The spectrum in this region is dominated by emission from moderate charge states of iron. The interpretation of the data relies on accurate and complete plasma emission models, notably CHIANTI. We have performed a series of laboratory measurements of the 3-3 emission from M-shell iron ions. The measurements cover the range 170 - 250 Å and are made at an electron density of about 1011 cm-3. Emission from Fe VIII through Fe XVI has been identified. Excellent agreement with CHIANTI predictions is found. A few weak transitions are noted in the laboratory data that are predicted by CHIANTI to be vanishingly small and should not have been observed. These are tentatively attributed to transitions in Fe XV. A comparison with observations from CHIPS is also presented. This work was supported in part by NASA's Solar and Heliospheric Physics Supporting Research and Technology Program. Work at UC-LLNL was performed under the auspices of the DOE by under Contract W-7405-Eng-48.

Modelling adaptation to climate change of Ecuadorian agriculture and associated water resources: uncertainties in coastal and highland cropping systems

NASA Astrophysics Data System (ADS)

Ruiz-Ramos, Margarita; Bastidas, Wellington; Cóndor, Amparo; Villacís, Marcos; Calderón, Marco; Herrera, Mario; Zambrano, José Luis; Lizaso, Jon; Hernández, Carlos; Rodríguez, Alfredo; Capa-Morocho, Mirian

2016-04-01

Climate change threatens sustainability of farms and associated water resources in Ecuador. Although the last IPCC report (AR5) provides a general framework for adaptation, , impact assessment and especially adaptation analysis should be site-specific, taking into account both biophysical and social aspects. The objective of this study is to analyse the climate change impacts and to sustainable adaptations to optimize the crop yield. Furthermore is also aimed to weave agronomical and hydrometeorological aspects, to improve the modelling of the coastal ("costa") and highland ("sierra") cropping systems in Ecuador, from the agricultural production and water resources points of view. The final aim is to support decision makers, at national and local institutions, for technological implementation of structural adaptation strategies, and to support farmers for their autonomous adaptation actions to cope with the climate change impacts and that allow equal access to resources and appropriate technologies. . A diagnosis of the current situation in terms of data availability and reliability was previously done, and the main sources of uncertainty for agricultural projections have been identified: weather data, especially precipitation projections, soil data below the upper 30 cm, and equivalent experimental protocol for ecophysiological crop field measurements. For reducing these uncertainties, several methodologies are being discussed. This study was funded by PROMETEO program from Ecuador through SENESCYT (M. Ruiz-Ramos contract), and by the project COOP-XV-25 funded by Universidad Politécnica de Madrid.

Transport properties of lithium- lead-vanadium-telluride glass and glass ceramics

NASA Astrophysics Data System (ADS)

Sathish, M.; Eraiah, B.

2014-04-01

Glasses with the chemical composition 35Li2O-(45-x)V2O5-20PbO-xTeO2 (where x = 2.5, 5, 7.5, 10, 15 mol %) have prepared by conventional melt quenching method. The electrical conductivity of Li+ ion conducting lead vanadium telluride glass samples has been carried out both as a function of temperature and frequency in the temperature range 503K-563K and over frequencies 40 Hz to 10 MHz. The electronic conduction has been observed in the present systems. When these samples annealed around 400°C for 2hour become the glass ceramic, which also shows increase tendency of conductivity. SEM confines glass and glass ceramic nature of the prepared samples.

Rotational modulation and flares on RS Canum Venaticorum and BY Draconis-type stars. XV - Observations of Proxima Centauri and solar calibration data

NASA Technical Reports Server (NTRS)

Haisch, B. M.; Butler, C. J.; Foing, B.; Rodono, M.; Giampapa, M. S.

1990-01-01

Results are reported from simultaneous Exosat and IUE observations of flaring in Proxima Cen on March 2, 1985. The data are presented in extensive tables and sample spectra and discussed in detail. The peak emission of the soft-X-ray flare is found to be about 3 x 10 to the 27th erg/sec, with energy about 3 x 10 to the 30th erg and an associated increase in Mg II flux to 17,000-67,000 erg/sq cm sec, or about an order of magnitude lower than the solar value. The presence of flare- and microflare-related processes heating the corona is inferred.

Computation of the Percentage Points of the Chi-Square Distribution

DTIC Science & Technology

1977-04-01

0D.4 ’ 2th cW%(F. ffA ’*. .0 Dp 46 v Ne #% N’ c %c 0% rmsn",0a0r fWN ..an W% *SA%0 0 9. M do Q at Ge .4.4 ~N P) ) AIII0 t- t.. 40 so(PO cC3.4..4 W N...0V %0, n:U ( bbP P xv 0-.V~ Pa bONP . CY R. .4 1 6 6 6. 6 6 6 6 6S * 6 6 6 6 6 6 6 6 6 6 6 6 6 . 6 . . 6 6 6 6 6 WS- mom4 .0f 0 M4SA on a~ 4tq .4~b M

Comparison of aircraft noise measured in flight test and in the NASA Ames 40- by 80-foot wind tunnel.

NASA Technical Reports Server (NTRS)

Atencio, A., Jr.; Soderman, P. T.

1973-01-01

A method to determine free-field aircraft noise spectra from wind-tunnel measurements has been developed. The crux of the method is the correction for reverberations. Calibrated loud speakers are used to simulate model sound sources in the wind tunnel. Corrections based on the difference between the direct and reverberant field levels are applied to wind-tunnel data for a wide range of aircraft noise sources. To establish the validity of the correction method, two research aircraft - one propeller-driven (YOV-10A) and one turbojet-powered (XV-5B) - were flown in free field and then tested in the wind tunnel. Corrected noise spectra from the two environments agree closely.

Challenges in Rotorcraft Acoustic Flight Prediction and Validation

NASA Technical Reports Server (NTRS)

Boyd, D. Douglas, Jr.

2003-01-01

Challenges associated with rotorcraft acoustic flight prediction and validation are examined. First, an outline of a state-of-the-art rotorcraft aeroacoustic prediction methodology is presented. Components including rotorcraft aeromechanics, high resolution reconstruction, and rotorcraft acoustic prediction arc discussed. Next, to illustrate challenges and issues involved, a case study is presented in which an analysis of flight data from a specific XV-15 tiltrotor acoustic flight test is discussed in detail. Issues related to validation of methodologies using flight test data are discussed. Primary flight parameters such as velocity, altitude, and attitude are discussed and compared for repeated flight conditions. Other measured steady state flight conditions are examined for consistency and steadiness. A representative example prediction is presented and suggestions are made for future research.

Minimal-Drift Heading Measurement using a MEMS Gyro for Indoor Mobile Robots.

PubMed

Hong, Sung Kyung; Park, Sungsu

2008-11-17

To meet the challenges of making low-cost MEMS yaw rate gyros for the precise self-localization of indoor mobile robots, this paper examines a practical and effective method of minimizing drift on the heading angle that relies solely on integration of rate signals from a gyro. The main idea of the proposed approach is consists of two parts; 1) self-identification of calibration coefficients that affects long-term performance, and 2) threshold filter to reject the broadband noise component that affects short-term performance. Experimental results with the proposed phased method applied to Epson XV3500 gyro demonstrate that it effectively yields minimal drift heading angle measurements getting over major error sources in the MEMS gyro output.

ORD Science and Technology for Sustainability Research Program Mid-Cycle Review - July 2009

EPA Pesticide Factsheets

The purpose of the review was to evaluate progress that the STS Program has made since the 2007 program review and to assess the responsiveness of the Program to advice, comments, and recommendations provided by the BOSC as a product of that review.

49 CFR 23.7 - Program reviews.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 49 Transportation 1 2010-10-01 2010-10-01 false Program reviews. 23.7 Section 23.7 Transportation... CONCESSIONS General § 23.7 Program reviews. In 2010, and thereafter at the discretion of the Secretary, the Department will initiate a review of the ACDBE program to determine what, if any, modifications should be...

State Level Review of Doctoral Programs in Texas.

ERIC Educational Resources Information Center

Whittington, Nil

Review of doctoral degree programs in Texas public colleges and universities is discussed. Attention is directed to review procedures and strengths and weaknesses in the state's doctoral programs in educational psychology, counseling and guidance, and student personnel services. Doctoral programs were reviewed because of their high cost and a…

Implementing a Successful Faculty, Data Driven Model for Program Review.

ERIC Educational Resources Information Center

Beal, Suzanne; Davis, Shirley

Frederick Community College (Maryland) utilizes both the Instructional Accountability Program Review (IAPR) and the Career Program Review (CPR) to assess program outcomes and determine progress in meeting goals and objectives. The IAPR is a comprehensive review procedure conducted by faculty and associate deans to evaluate all transfer, career,…

Outcomes of an Independent Review and Guidelines for the Implementation of a Program Review Model. Volume II. Technical Report.

ERIC Educational Resources Information Center

Carvell Education Managment Planning, Inc., Los Angeles, CA.

The second part of a report on a comprehensive review of the credit instructional programs offered by Pasadena City College (PCC), this volume contains a technical description of the data collection and assembly procedures used in the program review and provides guidelines for the implementation of the program review model. The first section…

2012 Wind Program Peer Review Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zayas, Jose; Higgins, Mark

2012-06-01

This report summarizes the proceedings of the 2012 Wind Program Peer Review, the goals of which were to review and evaluate the strategy and goals of the Wind Program; review and evaluate the progress and accomplishments of the program's projects funded in fiscal year (FY) 2010 and FY 2011; and foster interactions among the national laboratories, industry, and academic institutions conducting research and development on behalf of the program.

Nutrition Program Quality Assurance through a Formalized Process of On-Site Program Review

ERIC Educational Resources Information Center

Paddock, Joan Doyle; Dollahite, Jamie

2012-01-01

A protocol for a systematic onsite review of the Expanded Food and Nutrition Education Program and Supplemental Nutrition Assistance Program-Education was developed to support quality programming and ensure compliance with state guidelines and federal regulations. Onsite review of local nutrition program operations is one strategy to meet this…

48 CFR 519.7011 - Application review.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Application review. 519... SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS GSA Mentor-Protégé Program 519.7011 Application review. (a) The Mentor-Protégé Program Manager will review the information specified in section 519.7009(b) and 519.7010...

24 CFR 906.45 - HUD criteria for reviewing a proposed homeownership program.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 24 Housing and Urban Development 4 2011-04-01 2011-04-01 false HUD criteria for reviewing a... Approval § 906.45 HUD criteria for reviewing a proposed homeownership program. HUD will use the following criteria in reviewing a homeownership program: (a) Feasibility. The program must be practically feasible...

The Effectiveness of Parenting Programs: A Review of Campbell Reviews

ERIC Educational Resources Information Center

Barlow, Jane; Coren, Esther

2018-01-01

Parenting practices predict important outcomes for children, and parenting programs are potentially effective means of supporting parents to promote optimal outcomes for children. This review summarizes findings of systematic reviews of parenting programs published in the Campbell Library. Six reviews evaluated the effectiveness of a range of…

42 CFR 493.575 - Removal of deeming authority or CLIA exemption and final determination review.

Code of Federal Regulations, 2014 CFR

2014-10-01

... an accreditation organization's program if the comparability or validation review produces findings...) An exemption review of a State's licensure program if the comparability or validation review produces... review of an accreditation organization or State licensure program, at CMS's discretion, if validation...

42 CFR 493.575 - Removal of deeming authority or CLIA exemption and final determination review.

Code of Federal Regulations, 2012 CFR

2012-10-01

... an accreditation organization's program if the comparability or validation review produces findings...) An exemption review of a State's licensure program if the comparability or validation review produces... review of an accreditation organization or State licensure program, at CMS's discretion, if validation...

42 CFR 493.575 - Removal of deeming authority or CLIA exemption and final determination review.

Code of Federal Regulations, 2013 CFR

2013-10-01

... an accreditation organization's program if the comparability or validation review produces findings...) An exemption review of a State's licensure program if the comparability or validation review produces... review of an accreditation organization or State licensure program, at CMS's discretion, if validation...

34 CFR 359.30 - How is peer review conducted under this program?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 34 Education 2 2010-07-01 2010-07-01 false How is peer review conducted under this program? 359.30 Section 359.30 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF...? § 359.30 How is peer review conducted under this program? Peer review is conducted under this program in...

ORD Land Research Program Mid-Cycle Review - January 2009

EPA Pesticide Factsheets

The purpose of the review was to evaluate progress that the Land Research Program has made since the 2005 program review and to assess the responsiveness of the Program to advice, comments, and recommendations provided by the BOSC.

ORD Water Quality Research Program Mid-Cycle Review - June 2009

EPA Pesticide Factsheets

The Board of Scientific Counselors (BOSC) completed a mid-cycle review of the Office of Research and Development’s (ORD) Water Quality Research Program (WQRP), focusing on Agency efforts to enhance the program following the 2006 BOSC program review.

Program review: resource evaluation, reservoir confirmation, and exploration technology

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ward, S.H.

1978-05-01

The details of the program review are reported. A summary of the recommendations, means for their implementation, and a six year program of expenditures which would accomplish the objectives of the recommendations are presented. Included in appendices are the following: DOE/DGE consortia participants; program managers contacted for opinion; communications received from program managers; participants, program review panel; and program strategy for resource evaluation and reservoir confirmation. (MHR)

Open-Access Physical Activity Programs for Older Adults: A Pragmatic and Systematic Review.

PubMed

Balis, Laura E; Strayer, Thomas; Ramalingam, NithyaPriya; Wilson, Meghan; Harden, Samantha M

2018-01-10

Open-access, community-based programs are recommended to assist older adults in meeting physical activity guidelines, but the characteristics, impact, and scalability of these programs is less understood. The Land-Grant University Cooperative Extension System, an organization providing education through county-based educators, functions as a delivery system for these programs. A systematic review was conducted to determine characteristics of effective older adult physical activity programs and the extent to which programs delivered in Extension employ these characteristics. A systematic review of peer-reviewed and grey literature was conducted from August 2016 to February 2017. The review was limited to open-access (available to all), community-based physical activity interventions for older adults (≥65 years of age). The peer-reviewed literature search was conducted in PubMed and EBSCOhost; the grey literature search for Extension interventions was conducted through Extension websites, Land-Grant Impacts, and the Journal of Extension. Sixteen peer-reviewed studies and 17 grey literature sources met inclusion criteria and were analyzed. Peer-reviewed and Extension programs were similar in their limited use of behavioral theories and group-based strategies. Compared to Extension programs, those in the peer-reviewed literature were more likely to use a combination of physical activity components and be delivered by trained professionals. The results indicate notable differences between peer-reviewed literature and Extension programs and present an opportunity for Extension programs to more effectively use evidence-based program characteristics, including behavioral theories and group dynamics, a combination of physical activity components, and educator/agent-trained delivery agents. © The Author(s) 2017. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

43 CFR 404.51 - Are proposed projects under the Rural Water Supply Program reviewed by the Administration?

Code of Federal Regulations, 2010 CFR

2010-10-01

... Water Supply Program reviewed by the Administration? 404.51 Section 404.51 Public Lands: Interior... SUPPLY PROGRAM Feasibility Studies § 404.51 Are proposed projects under the Rural Water Supply Program... the Reclamation's Rural Water Supply Program. This includes review under Executive Order 12322 to...

48 CFR 819.7109 - VA review of application.

Code of Federal Regulations, 2010 CFR

2010-10-01

... SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS VA Mentor-Protégé Program 819.7109 VA review of application. (a) VA OSDBU will review the information to establish the mentor and protégé eligibility and to ensure... charge to apply for the Mentor-Protégé Program. (b) After OSDBU completes its review and provides written...

Effect of a life review program for Chinese patients with advanced cancer: a randomized controlled trial.

PubMed

Xiao, Huimin; Kwong, Enid; Pang, Samantha; Mok, Esther

2013-01-01

Empirical data suggest that life review is an effective psychospiritual intervention. However, it has not been applied to Chinese patients with advanced cancer, and its effects on this population remain unknown. The aim of the study was to determine the effect of a life review program on quality of life among Chinese patients with advanced cancer. In this prospective randomized controlled trial, a total of 80 patients were randomly assigned to the life review program group and the control group. The 3-weekly life review program included reviewing a life and formulating a life review booklet. Outcome data were assessed by a collector who was blinded to group assignment before and immediately after the program and at a 3-week follow-up. Significantly better scores in overall quality of life, support, negative emotions, sense of alienation, existential distress, and value of life were found in the life review group immediately after the program and at the 3-week follow-up. This study provides additional data on the potential role of a life review in improving quality of life, particularly psychospiritual well being; it also indicates that the life review program could enable Chinese patients with advanced cancer to express their views on life and death. The life review program offers advanced cancer patients an opportunity to integrate their whole life experiences and discuss end-of-life issues, which lays the ground for further active intervention in their psychospiritual distress. The program could be integrated into daily home care to enhance the psychospiritual well-being of Chinese patients with advanced cancer.

10 CFR 1040.101 - Compliance reviews.

Code of Federal Regulations, 2011 CFR

2011-01-01

... DEPARTMENT OF ENERGY (GENERAL PROVISIONS) NONDISCRIMINATION IN FEDERALLY ASSISTED PROGRAMS OR ACTIVITIES Program Monitoring § 1040.101 Compliance reviews. (a) The Director shall periodically conduct compliance... of: (1) The practices to be reviewed; (2) The programs or activities affected by the review; (3) The...

10 CFR 1040.101 - Compliance reviews.

Code of Federal Regulations, 2013 CFR

2013-01-01

... DEPARTMENT OF ENERGY (GENERAL PROVISIONS) NONDISCRIMINATION IN FEDERALLY ASSISTED PROGRAMS OR ACTIVITIES Program Monitoring § 1040.101 Compliance reviews. (a) The Director shall periodically conduct compliance... of: (1) The practices to be reviewed; (2) The programs or activities affected by the review; (3) The...

10 CFR 1040.101 - Compliance reviews.

Code of Federal Regulations, 2012 CFR

2012-01-01

... DEPARTMENT OF ENERGY (GENERAL PROVISIONS) NONDISCRIMINATION IN FEDERALLY ASSISTED PROGRAMS OR ACTIVITIES Program Monitoring § 1040.101 Compliance reviews. (a) The Director shall periodically conduct compliance... of: (1) The practices to be reviewed; (2) The programs or activities affected by the review; (3) The...

10 CFR 1040.101 - Compliance reviews.

Code of Federal Regulations, 2014 CFR

2014-01-01

... DEPARTMENT OF ENERGY (GENERAL PROVISIONS) NONDISCRIMINATION IN FEDERALLY ASSISTED PROGRAMS OR ACTIVITIES Program Monitoring § 1040.101 Compliance reviews. (a) The Director shall periodically conduct compliance... of: (1) The practices to be reviewed; (2) The programs or activities affected by the review; (3) The...

10 CFR 1040.101 - Compliance reviews.

Code of Federal Regulations, 2010 CFR

2010-01-01

... DEPARTMENT OF ENERGY (GENERAL PROVISIONS) NONDISCRIMINATION IN FEDERALLY ASSISTED PROGRAMS OR ACTIVITIES Program Monitoring § 1040.101 Compliance reviews. (a) The Director shall periodically conduct compliance... of: (1) The practices to be reviewed; (2) The programs or activities affected by the review; (3) The...

A systematic meta-review of evaluations of youth violence prevention programs: Common and divergent findings from 25 years of meta-analyses and systematic reviews☆

PubMed Central

Matjasko, Jennifer L.; Vivolo-Kantor, Alana M.; Massetti, Greta M.; Holland, Kristin M.; Holt, Melissa K.; Cruz, Jason Dela

2018-01-01

Violence among youth is a pervasive public health problem. In order to make progress in reducing the burden of injury and mortality that result from youth violence, it is imperative to identify evidence-based programs and strategies that have a significant impact on violence. There have been many rigorous evaluations of youth violence prevention programs. However, the literature is large, and it is difficult to draw conclusions about what works across evaluations from different disciplines, contexts, and types of programs. The current study reviews the meta-analyses and systematic reviews published prior to 2009 that synthesize evaluations of youth violence prevention programs. This meta-review reports the findings from 37 meta-analyses and 15 systematic reviews; the included reviews were coded on measures of the social ecology, prevention approach, program type, and study design. A majority of the meta-analyses and systematic reviews were found to demonstrate moderate program effects. Meta-analyses yielded marginally smaller effect sizes compared to systematic reviews, and those that included programs targeting family factors showed marginally larger effects than those that did not. In addition, there are a wide range of individual/family, program, and study moderators of program effect sizes. Implications of these findings and suggestions for future research are discussed. PMID:29503594

34 CFR 350.50 - What is the peer review process for this Program?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 34 Education 2 2010-07-01 2010-07-01 false What is the peer review process for this Program? 350... peer review process for this Program? (a) The Secretary refers each application for a grant governed by those regulations in this part to a peer review panel established by the Secretary. (b) Peer review...

NASA Standing Review Board Handbook: Revision B

NASA Technical Reports Server (NTRS)

Amer, Tahani R.; Ortiz, James N.; Calloway, Michelle A.; Greathouse, Richard M.; Polen, Charles A.; Baker, Ronald L.; Borchardt, Heidemarie E.; Chromik, Christopher C.; Moran, Erin; Paraska, Michael W.;

48 CFR 1819.7213 - Performance reviews.

Code of Federal Regulations, 2013 CFR

2013-10-01

... 48 Federal Acquisition Regulations System 6 2013-10-01 2013-10-01 false Performance reviews. 1819... ADMINISTRATION SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS NASA Mentor-Protégé Program 1819.7213 Performance reviews. (a) NASA OSBP will conduct annual performance reviews of the progress and accomplishments...

48 CFR 1819.7213 - Performance reviews.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 48 Federal Acquisition Regulations System 6 2011-10-01 2011-10-01 false Performance reviews. 1819... ADMINISTRATION SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS NASA Mentor-Protégé Program 1819.7213 Performance reviews. (a) NASA OSBP will conduct annual performance reviews of the progress and accomplishments...

48 CFR 1819.7213 - Performance reviews.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Performance reviews. 1819... ADMINISTRATION SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS NASA Mentor-Protégé Program 1819.7213 Performance reviews. (a) NASA OSBP will conduct annual performance reviews of the progress and accomplishments...

Robust Flight Controllers.

DTIC Science & Technology

1983-12-01

C TO c:.’jrPTE --L773Z 1tNT - A P TO PICK( :T JTZCTLY3, 172. IF (PSG .ED* C 9) TN C17?6: CALL O’(T; ( PHIT , 37,GTD, OTO GCX, T1M, GCY, GCZ, OhlC...IRHN 16 IFLGCZzQ C 17610 ____CALL ’AT1(OTDBCYvXV0fn, ;s,~MC~)1762t CALL "AO01 11RPM, IFH, PHIT ,GCSTR,9CY ,CI) 0 17 64;- C SCYS’ PfiTdtOICTR3 1RFM X...C PHIC u( PHIT -!TO(GCSTR)(I-RKFSS(Hn)) 1RFM X IP� CALL nAT1(9CY,4FSSIrKFMIRPp4HM.6pCZ) 01777C C CZ PIT- ETDIGCST))RFSS IRFP X IRt4M C1778;’ ELSE 07g