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Displaying 26801 - 26825 of 73832

Synthesis and properties of turbostratically disordered,ultrathin WSe2 films

May 11, 2010
Author(s)
Ngoc Nguyen, Polly Berseth, Qiyin Lin, Catalin Chiritescu, D.G. Cahill, Anastassios Mavrokefalos, Li Shi, Paul Zschack, Michael D. Anderson, Ian M. Anderson, David C. Johnson
Turbostratically disordered tungsten diselenide (WSe2) thin films with as few as two c-axis-oriented (basal plane) structural units were synthesized from modulated elemental reactants. By varying the number of elemental W-Se bilayers deposited, the

Test Suite for Building Energy Analysis of Conceptual Spatial Layout

May 11, 2010
Author(s)
Kenway K. Chen, Robert R. Lipman, Mark E. Palmer
This report documents a test suite for validation and conformance testing in support of the interoperability among building design and energy analysis applications. The objectives of this test suite are to: provide to software vendors test cases to

FRVT 2006: Quo Vidas Face Quality

May 10, 2010
Author(s)
P J. Phillips, J. R. Beveridge, Geof H. Givens, Bruce A. Draper, David Bolme, Yui M. Lui
This paper summarizes a study of how three state-of-the-art algorithms from the Face Recognition Vendor Test 2006 (FRVT 2006) are effected by factors related to face images and the people being recognized. The recognition scenario compares highly

Measuring and improving U.S. construction productivity

May 10, 2010
Author(s)
Robert E. Chapman, David T. Butry, Allison L. Huang
Although the construction industry is a major component of the U.S. economy, it has experienced a prolonged period of decline in productivity. Due to the critical lack of measurement methods, however, the magnitude of the productivity problem in the U.S

Shell-dependent Blinking of CdSe-Based Core/Shell Nanocrystals

May 10, 2010
Author(s)
Seung Koo Shin, Bonghwan Chon, Sung Jun Lim, Wonjung Kim, Hyeong G. Kang, Taiha Joo, Jeeseong C. Hwang
Blinking of zinc-blende CdSe-based core/shell nanocrystals are studied as a function of shell materials. CdSe/ZnS, CdSe/ZnSe/ZnS, and CdSe/CdS/ZnS core/shell nanocrystals are prepared by epitaxial growth of two-to-six monolayers (MLs) of shell materials

Uncertainty Budgeting for Range Calibration

May 10, 2010
Author(s)
Ruediger Kessel, Raghu N. Kacker, Klaus-Dieter Sommer
The Guide to the Expression of Uncertainty (GUM) in Measurement established a general procedure to evaluate measurement uncertainty. The Guide covers only the evaluation of a single result or a set of results. Modern measurement instruments and procedures

Multiple Encounter Dataset I (MEDS-I)

May 9, 2010
Author(s)
Craig I. Watson
In December, 2008, the FBI provided MITRE with an extract of submissions of deceased persons. The submissions contain face images of subjects with multiple encounters over time. The type 10 records (face and SMT) are mostly frontal or near frontal face

Single-query, Bi-directional, Lazy Roadmap Planner Applied to Car-like Robots

May 8, 2010
Author(s)
Stephen B. Balakirsky, Denis Denis Dimitrov
The Single-query, Bi-directional, Lazy roadmap (SBL) algorithm successfully builds upon the traditional Probabilistic Roadmaps (PRM) approach by introducing a number of related optimizations. While these optimizations are applicable in the domain of car

Theoretical Studies on the Structure of Interacting Colloidal Suspensions by Spin-Echo Small Angle Neutron Scattering

May 7, 2010
Author(s)
Xin Li, Chwen-Yang Shew, Yun Liu, Roger Pynn, Emily Liu, Kenneth W. Herwig, Gregory S. Smith, J. L. Robertson, Wei-Ren Chen
The application of the spin-echo small angle neutron scattering (SESANS) technique for structural characterization of interacting colloidal suspensions is considered in this work. The framework to calculate the theoretical SESANS correlation function is

Thermal Decomposition of RP-2 with Stabilizing Additives

May 7, 2010
Author(s)
Jason A. Widegren, Thomas J. Bruno
The thermal decomposition of RP-2 and mixtures of RP-2 with four different additives has been investigated. The mixtures with RP-2 contained one of the following: 5 % /trans/-decahydronaphthalene (decalin); 5 % 1,2,3,4-tetrahydronaphthalene (tetralin); 5 %

Hydrolytic stability of polybenzobisoxazole and polyterephthalamide body armor.

May 6, 2010
Author(s)
Amanda L. Forster, Guillaume Messin, Kirk D. Rice, Pierre Pintus, Joannie W. Chin, Sylvain H. Petit
Previous work conducted at the National Institute of Standards and Technology (NIST) to investigate the field failures of soft body armor containing the material poly(p-phenylene-2,6-benzobisoxazole), or PBO, revealed that this material was susceptible to

Quasiparticle Density of States Measurements in Clean Superconducting AlMn Alloys

May 6, 2010
Author(s)
Galen C. O'Neil, Daniel R. Schmidt, Nathan A. Tomlin, Joel N. Ullom
Aluminum doped with Manganese (AlMn) forms a superconducting alloy with the transition temperature suppressed by the added Manganese. We present quasiparticle density of states measurements on superconducting AlMn alloys made by current-voltage

Variances of Plane Parameters Fitted to Range Data

May 5, 2010
Author(s)
Marek Franaszek
Formulas for variances of plane parameters fitted with Nonlinear Least Squares to points cloud acquired by 3D imaging systems (e.g., LADAR) are derived. Two different error functions used in minimization are discussed: the orthogonal and the directional
Displaying 26801 - 26825 of 73832
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