Distributed Memory Compiler Methods for Irregular Problems – Data Copy Reuse and Runtime Partitioning1 1This work is supported by NASA contract NAS1-18605 while the authors were in residence at ICASE, NASA Langley Research Center. In addition, support for author Saltz was provided by NSF from NSF grant ASC-8819374. The authors assume all responsibility for the contents of the paper.

В работе проводятся исследования по оценке влияния внутренних дефектов типа расслоений различного размера и расположения на деформирование и разрушение слоистых элементов конструкций из полимерных композиционных материалов (ПКМ). Действующая нагрузка - динамическая. Для оценки прочности рассматриваемых элементов конструкций используются следующие критерии разрушения для ПКМ [1-5]: Hashin, Chang-Chang, Puck, LaRC03 (Langley Research Center), Fischer.

Download Full-text

Stochastic Partial Differential Equations in Turbulence Related Problems**The preparation of this article was supported by the US Army Research Office at Research Triangle Park, North Carolina, under Grant No. DAAG29-76-G-0141, and by NASA Langley Research Center, Hampton, Virginia, under Grant NSG1330.

Probabilistic Analysis and Related Topics ◽

10.1016/b978-0-12-095601-2.50006-7 ◽

1978 ◽

pp. 1-43 ◽

Cited By ~ 13

Author(s):

PAO-LIU CHOW

Keyword(s):

North Carolina ◽

Partial Differential Equations ◽

Differential Equations ◽

Stochastic Partial Differential Equations ◽

Research Center ◽

Us Army ◽

Research Triangle ◽

The Us ◽

Langley Research Center ◽

Research Office

Download Full-text

Parallel multigrid solvers with block-wise smoothers for multiblock grids * *This research was supported by the National Aeronautics and Space Administration under NASA Contract No. NAS1-19480 while the first authors were in residence at the Institute for Computer Applications in Science and Engineering (ICASE), NASA Langley Research Center, Hampton, VA 23681-2199

Parallel Computational Fluid Dynamics 1999 ◽

10.1016/b978-044482851-4.50037-2 ◽

2000 ◽

pp. 297-304

Author(s):

Ignacio M. Llorente ◽

Boris Diskin ◽

N. Duane Melson

Keyword(s):

Computer Applications ◽

Research Center ◽

Science And Engineering ◽

Multigrid Solvers ◽

Parallel Multigrid ◽

Langley Research Center ◽

Multiblock Grids

Download Full-text

An Overview of Innovative Strategies for Fracture Mechanics at NASA Langley Research Center

51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference<BR> 18th AIAA/ASME/AHS Adaptive Structures Conference<BR> 12th ◽

10.2514/6.2010-2560 ◽

2010 ◽

Author(s):

Jonathan Ransom ◽

Edward Glaessgen ◽

J. Ratcliffe

Keyword(s):

Fracture Mechanics ◽

Research Center ◽

Innovative Strategies ◽

Langley Research Center

Download Full-text

Infrared detector activities at NASA Langley Research Center

MRS Proceedings ◽

10.1557/proc-1076-k03-04 ◽

2008 ◽

Vol 1076 ◽

Author(s):

M. Nurul Abedin ◽

Tamer F Refaat ◽

Oleg V Sulima ◽

Farzin Amzajerdian

Keyword(s):

Remote Sensing ◽

Near Infrared ◽

Infrared Detector ◽

Avalanche Photodiode ◽

Low Noise ◽

Focal Plane Arrays ◽

Research Center ◽

Single Element ◽

Sensing Applications ◽

Langley Research Center

ABSTRACTInfrared detector development and characterization at NASA Langley Research Center will be reviewed. These detectors were intended for ground, airborne, and space borne remote sensing applications. Discussion will be focused on recently developed single-element infrared detector and future development of near-infrared focal plane arrays (FPA). The FPA will be applied to next generation space-based instruments. These activities are based on phototransistor and avalanche photodiode technologies, which offer high internal gain and relatively low noise-equivalent-power. These novel devices will improve the sensitivity of active remote sensing instruments while eliminating the need for a high power laser transmitter.

Download Full-text