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Journal articles on the topic 'NASP (Computer program)'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Semegni, J. Y., M. Wamalwa, R. Gaujoux, G. W. Harkins, A. Gray, and D. P. Martin. "NASP: a parallel program for identifying evolutionarily conserved nucleic acid secondary structures from nucleotide sequence alignments." Bioinformatics 27, no. 17 (2011): 2443–45. http://dx.doi.org/10.1093/bioinformatics/btr417.

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Brozowski, L. A., T. V. Ferguson, and L. Rojas. "Impeller Flow Field Laser Velocimeter Measurements." International Journal of Rotating Machinery 2, no. 3 (1996): 149–59. http://dx.doi.org/10.1155/s1023621x96000024.

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Development of Computational Fluid Dynamics (CFD) computer codes for complex turbomachinery affords a complete three-dimensional (3-D) flow field description. While significant improvements in CFD have been made due to improvements in computers, numerical algorithms, and physical modeling, a limited experimental database for pump CFD code validation exists.Under contract (NAS8-38864) to the National Aeronautics and Space Administration (NASA) at Marshall Space Flight Center (MSFC) a test program was undertaken at Rocketdyne to obtain benchmark data for typical rocket engine pump geometry. Noni

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Wade, R. A. "Synthetic Spectra for Accretion Discs: The UV Absorption Spectrum." International Astronomical Union Colloquium 158 (1996): 119–22. http://dx.doi.org/10.1017/s0252921100038409.

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With my collaborators (Ivan Hubeny, NASA/Goddard Space Flight Center; Marcos Diaz, Catherine Grant, and Darren Williams, all of Penn State), I am computing the structure of discs and their corresponding UV spectra for a large grid of choices of the white dwarf mass Mwd and the mass transfer rate Ṁ. In our approach, we divide the problem into a number of parts, each corresponding to a particular FORTRAN-implemented computer program. Program TLUSDISK computes the vertical structure for individual rings in the disc (T, ρ, ne, τ versus Z). The rings are treated independently, as plane-parallel ent

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Filipovic, Milos, and Nikola Kilibarda. "Calculation of complex chemical equilibrium compositions of composite rocket propellants combustion products." Journal of the Serbian Chemical Society 65, no. 11 (2000): 803–10. http://dx.doi.org/10.2298/jsc0011803f.

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An adequate method for calculating chemical equilibrium in a predominantly gaseous, multi-component reactive mixture was investigated and successfully applied. This method involves the stated equilibrium reaction scheme, including, first, the formation of chemical species, of which concentrations prevail in the mixture, then the formation of gaseous atomic species by dissociation of previous ones, and, finally, the formation of complex chemical species from the atomic species. A computer program, which permits calculations of equilibrium compositions by the iteration procedure, has been develo

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5

Rock, Donald A., and Jennifer Nelson. "Chapter 8: Applications and Extensions of NAEP Concepts and Technology." Journal of Educational Statistics 17, no. 2 (1992): 219–32. http://dx.doi.org/10.3102/10769986017002219.

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The National Assessment of Educational Progress (NAEP) has consistently pioneered new assessment methods in conjunction with developing the psychometric methodologies underlying them. Several NAEP developments—such as complex matrix item sampling designs, the introduction of performance-based items in large-scale assessments, vertical scaling, and an intelligent computer system that produces unique assessment reports for participating jurisdictions in the NAEP Trial State Assessment program—are presented in this chapter along with a discussion of their extensions and applications to other curr

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Abrams, Michael. "Retracing the Footprints." Mechanical Engineering 143, no. 3 (2021): 49–53. http://dx.doi.org/10.1115/1.2021-may4.

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Abstract NASA is engaged in a new program to send astronauts back to the lunar surface. Some elements of the new program, called Artemis, will seem like carbon copies of the 1960s roadmap to the Moon. Bu the effort will take advantage of computers, design tools, and materials that are radically more advanced than they were for the Apollo program.

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Fishbach, L. H., and S. Gordon. "NNEPEQ—Chemical Equilibrium Version of the Navy/NASA Engine Program." Journal of Engineering for Gas Turbines and Power 111, no. 1 (1989): 114–16. http://dx.doi.org/10.1115/1.3240205.

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The Navy NASA Engine Program, NNEP, developed in 1975, currently is in use at a large number of government agencies, commercial companies, and universities. This computer code has been used extensively to calculate the design and off-design (matched) performance of a broad range of turbine engines, ranging from subsonic turboprops to variable cycle engines for supersonic transports. Recently, there has been increased interest in applications that NNEP was not capable of simulating, namely, high Mach applications, alternate fuels including cryogenics, and cycles such as the gas generator air-tu

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Kotnour, Tim, and Timothy R. Bollo. "Strategic management of a transformation in a multi-program technology program involving convergence and divergence of programs: observations from NASA." International Journal of Technology Management 53, no. 2/3/4 (2011): 257. http://dx.doi.org/10.1504/ijtm.2011.038593.

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Inoue, K., D. P. Townsend, and J. J. Coy. "Optimum Design of a Gearbox for Low Vibration." Journal of Mechanical Design 115, no. 4 (1993): 1002–7. http://dx.doi.org/10.1115/1.2919247.

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A computer program was developed for designing a low vibration gearbox. The code is based on a finite element shell analysis, a modal analysis, and a structural optimization method. In the finite element analysis, a triangular shell element with 18 degrees-of-freedom is used. In the optimization method, the overall vibration energy of the gearbox is used as the objective function and is minimized at the exciting frequency by varying the finite element thickness. Modal analysis is used to derive the sensitivity of the vibration energy with respect to the design variable. The sensitivity is repr

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10

Yates, E. Carson. "Integral Equation Methods for Linear and Nonlinear Aerodynamics." Applied Mechanics Reviews 44, no. 11S (1991): S285—S294. http://dx.doi.org/10.1115/1.3121367.

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This paper reviews the NASA Langley Research Center program for development of integral-equation aerodynamic methods with emphasis on application in computed-aided multidisciplinary design processes as well as in aerodynamic design and stand-alone analysis. The accomplishments, status, and outlook of the program are discussed in order to highlight the scope, generality, versatility, and attractive features of this methodology, especially for application to nonlinear problems.

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Qiao, Yan Chao, Zi Qi Guo, Bao Gang Zhang, and Yao Lin Shi. "Optimization for the Air-Pod Shape." Advanced Materials Research 308-310 (August 2011): 136–41. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.136.

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in order to optimize the air-pod shape, this paper details work conducted using the commercial CFD software package ANSYS: Fluent to simulate the aerodynamic of air-pod. In our research, the results as followed: 1) In the benchmark, our comparative analysis of the flow over the NASA 0012 airfoil from the Experimental Data Base for Computer Program Assessment (AGARD-AR-138, 1979) implies that the ANSYS: Fluent software package numerical method simulates the airfoil viscous flow with the same accuracy as the wind-tunnel experiment. We can use it to finish our research. 2) We build the 3-D model

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AL-FAYDHI, ANWAR MUSTAFA EZZAT. "PHOTOLYSIS AND LIFETIME OF NO2, N2O AND HNO3 USING ANALYTICAL SOFTWARE PROGRAM." Modern Physics Letters B 23, no. 14 (2009): 1827–42. http://dx.doi.org/10.1142/s021798490902000x.

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In this research photolysis of NO 2, N 2 O and HNO 3 for vast range of altitudes was investigated using the absorption cross-section data provided by NASA. The calculations were made using a special software computer program. Also the lifetimes of NO 2, N 2 O and HNO 3 were calculated. The investigation revealed that the lifetime due to photolysis will be nearly steady and short for NO 2, and will be as long (as there is no overlap with solar fluxes below 50 km altitude) for N 2 O . As for nitric acid HNO 3 the lifetime started to increase from 1 day at 25 km altitude to 10 days at the surface

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Lester, Frank K., and Diana Lambdin Kroll. "Implementing The Standards: Evaluation: A New Vision." Mathematics Teacher 84, no. 4 (1991): 276–84. http://dx.doi.org/10.5951/mt.84.4.0276.

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Teaching according to the vision of the NCTM's Curriculum and Evaluation Standards will involve numerous changes in the content and instruction of the school mathematics program. Moreover, this vision will also require a change in testing procedures and methods for evaluating the effectiveness of instructional practices (Clarke, Clarke, and Lovitt 1990; EQUALS and California Mathematics Council 1989; NAEP 1987; NCTM 1989). As is pointed out in NCTM's curriculum standards, an evaluation program that is properly aligned with the proposed curriculum standards can no longer use only written tests.

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Gilman, Edward F. "211 AN EXPERT SYSTEM FOR URBAN TREE SELECTION." HortScience 29, no. 5 (1994): 459e—459. http://dx.doi.org/10.21273/hortsci.29.5.459e.

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This computer program, delivered-on a CD-ROM disc, develops a list of tree species and cultivars suited for a specific planting site. It requires little previous computer experience or tree knowledge to operate. Using multiple choice questions, the program automatically brings the user through above ground and below ground site analysis. This includes all the considerations known to influence proper species section for a planting site. Using C++ programming and the NASA-developed expert system shell called CUPS, a list of facts is generated as the user answers the questions. At the press of a

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15

Ma, Shengfang, Yuting Zhou, Prasanna H. Gowda, et al. "Evaluating the Impacts of Continuous and Rotational Grazing on Tallgrass Prairie Landscape Using High-Spatial-Resolution Imagery." Agronomy 9, no. 5 (2019): 238. http://dx.doi.org/10.3390/agronomy9050238.

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This study evaluated the impacts of different grazing treatments (continuous (C) and rotational (R) grazing) on tallgrass prairie landscape, using high-spatial-resolution aerial imagery (1-m at RGB and near-infrared bands) of experimental C and R pastures within two replicates (Rep A and Rep B) in the southern Great Plains (SGP) of the United States. The imagery was acquired by the National Agriculture Imagery Program (NAIP) during the agricultural growing season of selected years (2010, 2013, 2015, and 2017) in the continental United States. Land cover maps were generated by combining visual

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16

Lepicovsky, J., R. V. Chima, E. R. McFarland, and J. R. Wood. "On Flowfield Periodicity in the NASA Transonic Flutter Cascade." Journal of Turbomachinery 123, no. 3 (2000): 501–9. http://dx.doi.org/10.1115/1.1378300.

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A combined experimental and numerical program was carried out to improve the flow uniformity and periodicity in the NASA transonic flutter cascade. The objectives of the program were to improve the periodicity of the cascade and to resolve discrepancies between measured and computed flow incidence angles and exit pressures. Previous experimental data and some of the discrepancies with computations are discussed. In the present work surface pressure taps, boundary layer probes, shadowgraphs, and pressure-sensitive paints were used to measure the effects of boundary layer bleed and tailboard set

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17

Kim, Minsu, Seonkyung Park, Jeffrey Irwin, et al. "Positional Accuracy Assessment of Lidar Point Cloud from NAIP/3DEP Pilot Project." Remote Sensing 12, no. 12 (2020): 1974. http://dx.doi.org/10.3390/rs12121974.

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The Leica Geosystems CountryMapper hybrid system has the potential to collect data that satisfy the U.S. Geological Survey (USGS) National Geospatial Program (NGP) and 3D Elevation Program (3DEP) and the U.S. Department of Agriculture (USDA) National Agriculture Imagery Program (NAIP) requirements in a single collection. This research will help 3DEP determine if this sensor has the potential to meet current and future 3DEP topographic lidar collection requirements. We performed an accuracy analysis and assessment on the lidar point cloud produced from CountryMapper. The boresighting calibratio

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Newsom, J. R., and W. W. Anderson. "The NASA-LaRC controls-structures interaction (CSI) technology program." Control Engineering Practice 2, no. 3 (1994): 479–90. http://dx.doi.org/10.1016/0967-0661(94)90786-2.

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19

Motz, Victoria, Alison Faust, Jessica Dahmus, Benjamin Stern, Christopher Soriano, and Jonathan G. Stine. "Utilization of a Directly Supervised Telehealth-Based Exercise Training Program in Patients With Nonalcoholic Steatohepatitis: Feasibility Study." JMIR Formative Research 5, no. 8 (2021): e30239. http://dx.doi.org/10.2196/30239.

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Background Most patients with nonalcoholic fatty liver disease (NAFLD) are physically inactive despite the well-known benefits of physical activity. Telehealth offers promise as a novel way to deliver an exercise training program and increase physical activity. However, the feasibility, safety, and efficacy of telehealth-based exercise programs is unknown in patients with NAFLD. Objective The aim of this study was to determine the feasibility of a directly supervised exercise training program delivered exclusively with telehealth to patients with nonalcoholic steatohepatitis (NASH), the progre

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20

Wen, Liang-chi, and Ronald G. Ross. "Comparison of LCC Solder Joint Life Predictions With Experimental Data." Journal of Electronic Packaging 117, no. 2 (1995): 109–15. http://dx.doi.org/10.1115/1.2792076.

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The ability of solder joint life-prediction algorithms to predict the failure of solder joints due to temperature-cycling induced creep-fatigue has been investigated using representative leadless chip carriers (LCCs) as the test vehicle. Four different algorithms are assessed: the classic Coffin-Manson algorithm, a modified Coffin-Manson algorithm with dependency on peak stress, and two strain-energy based algorithms. JPL’s special purpose nonlinear finite element computer program was used to dynamically simulate the solder joint response to the standard NASA temperature cycling environment, w

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21

Moodie, Alex M., and Hyeonsoo Yeo. "Design of a Cruise-Efficient Compound Helicopter." Journal of the American Helicopter Society 57, no. 3 (2012): 1–11. http://dx.doi.org/10.4050/jahs.57.032004.

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A slowed-rotor compound helicopter is conceptually designed using a multifidelity approach, showing the potential for significant efficiency improvements above conventional helicopters. The cruise tip speed and bilinear twist distribution are optimized using the Comprehensive Analytical Model of Rotorcraft Aerodynamics and Dynamics (CAMRAD II). System-level metrics are computed using the NASA Design and Analysis of RotorCraft (NDARC) program to show top-level payoffs. An aeroperformance map is generated using comprehensive analysis for the optimum twist distribution, providing calibration data

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22

Bergren, Martha Dewey, and Erin D. Maughan. "Data and Information Literacy: A Fundamental Nursing Competency." NASN School Nurse 35, no. 3 (2020): 140–42. http://dx.doi.org/10.1177/1942602x20913249.

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Nurses in the 21st-century are expected to be data and information literate and proficient in data management. Nurses graduating from baccalaureate programs must be able to use computers and information systems and apply data and evidence to inform practice. Those competencies are also essential for the entire nursing workforce. That puts the onus on school nurses, school nurse supervisors, school districts, and state affiliates to take responsibility for comprehensive data and information literacy professional development. Fortunately, the National Association of School Nurses (NASN) has anti

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23

Hoecker, Douglas G., Kevin M. Corker, Emilie M. Roth, Melvin H. Lipner, and Marilyn S. Bunzo. "Man-Machine Design and Analysis System (MIDAS) Applied to a Computer-Based Procedure-Aiding System." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 38, no. 4 (1994): 195–99. http://dx.doi.org/10.1177/154193129403800402.

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Difficult issues in design criteria confront the designers of human—computer interaction (HCI) implementations for future power plant control rooms. Such HCI-intensive control—room elements include “soft” controls and displays, computerized procedures, alarm presentations, and support for cooperative information—sharing among crewmembers. This shift in technology, from dedicated controls and displays in fixed locations to multifunction computer—driven operator workstations and wall displays, must focus not only on the required functionality of these interfaces, but also on their crafting and i

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Harp, Derald A., and Edward L. McWilliams. "Remote Sensing Imagery on the Web and Its Potential for Use in Horticulture Classes." HortScience 31, no. 4 (1996): 589a—589. http://dx.doi.org/10.21273/hortsci.31.4.589a.

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As the World Wide Web (WWW) expands, information is rapidly becoming more accessible. Using satellite data previously required high-end computers running complex imaging software, sophisticated downloading equipment, and high monetary support. Satellite data is now available on the internet for little or no cost and can be handled on standard desktop computers using common software programs. The purpose of our project was to determine the availability and cost of different types of data and how this data may benefit horticultural instruction. Satellite data currently is archived at NASA, NOAA,

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Liberti, Gian Luigi, Davide D’Alimonte, Alcide di Sarra, et al. "European Radiometry Buoy and Infrastructure (EURYBIA): A Contribution to the Design of the European Copernicus Infrastructure for Ocean Colour System Vicarious Calibration." Remote Sensing 12, no. 7 (2020): 1178. http://dx.doi.org/10.3390/rs12071178.

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In the context of the Copernicus Program, EUMETSAT prioritizes the creation of an ocean color infrastructure for system vicarious calibration (OC-SVC). This work aims to reply to this need by proposing the European Radiometry Buoy and Infrastructure (EURYBIA). EURYBIA is designed as an autonomous European infrastructure operating within the Marine Optical Network (MarONet) established by University of Miami (Miami, FL, USA) based on the Marine Optical Buoy (MOBY) experience and NASA support. MarONet addresses SVC requirements in different sites, consistently and in a traceable way. The selecte

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Muller, Paul M. "Time and Polar Motion in Early NASA Spacecraft Navigation." International Astronomical Union Colloquium 178 (2000): 215–19. http://dx.doi.org/10.1017/s0252921100061352.

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AbstractInclusion of Polar Motion and UT1 data (corrections) is essential to achieving the full accuracy in NASA (and other) spacecraft navigation. Tracking station locations are routinely determined to the meter-level and must be available inertially (on the rotating Earth) to equal accuracy a priori in real-time. This implies knowledge of UT1 to 2.5ms and polar motion to lm (and for practical use for the first time accurately predicted and disseminated to the navigation computer programs). This was essential from 1965 onward as we prepared for Apollo, for Apollo itself, and all subsequent mi

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Schiro, Samuel G., Mark H. Karwan, Richard Dutton, and Charles T. Brunskill. "Fitting Population Anthropometric Data to a Proportional Man Model with Reference to Prime Computer's Sammie Program." Proceedings of the Human Factors Society Annual Meeting 31, no. 3 (1987): 325–29. http://dx.doi.org/10.1177/154193128703100313.

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This study addresses the problem of fitting anthropometric data from different populations to proportional man models. Proportional models simulate the human shape by assuming fixed proportions between the various body dimensions. Percentiles can be created in such a model but are constrained by the given body proportions. Prime Computer's SAMMIE man model is an example of the proportional approach. The SAMMIE model is described with reference to the anatomical features it simulates. The constraints imposed by a proportional model are discussed. These include Ink lengths, flesh envelope and ra

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Jin, Hong-Bo, and Peng Xu. "The pipeline of data processing for TAIJI-1 space mission in the TAIJI program for the detection of gravitational wave." International Journal of Modern Physics A 36, no. 11n12 (2021): 2140025. http://dx.doi.org/10.1142/s0217751x2140025x.

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TAIJI-1 is a micro-gravity experiment spacecraft. The mission target is to verify some key techniques of the spacecraft payloads for the gravitational wave detection, which involve laser interferometer, gravity reference sensor, drag-free control technology, micro-propulsion system, super-quiescent spacecraft platform, etc. The verification of the data processing pipeline required by the next stage of TAIJI Program is also performed. In order to benefit from the joint observatory between TAIJI and LISA in the future, as a space mission, the science operations refer to the existing ESA and NASA

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Korzhyk, D., Z. Yin, C. Kiekintveld, V. Conitzer, and M. Tambe. "Stackelberg vs. Nash in Security Games: An Extended Investigation of Interchangeability, Equivalence, and Uniqueness." Journal of Artificial Intelligence Research 41 (June 21, 2011): 297–327. http://dx.doi.org/10.1613/jair.3269.

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There has been significant recent interest in game-theoretic approaches to security, with much of the recent research focused on utilizing the leader-follower Stackelberg game model. Among the major applications are the ARMOR program deployed at LAX Airport and the IRIS program in use by the US Federal Air Marshals (FAMS). The foundational assumption for using Stackelberg games is that security forces (leaders), acting first, commit to a randomized strategy; while their adversaries (followers) choose their best response after surveillance of this randomized strategy. Yet, in many situations, a

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Pepin, Renee, and Stephen J. Bartels. "Usability of a Computer-Based Problem Solving Treatment for Isolated Older Adults Adapted from a NASA Program for Long Duration Missions." American Journal of Geriatric Psychiatry 23, no. 3 (2015): S138. http://dx.doi.org/10.1016/j.jagp.2014.12.141.

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Banasik, Kazimierz, and Ngoc Pham. "Modelling of the effects of land use changes on flood hydrograph in a small catchment of the Płaskowicka, southern part of Warsaw, Poland." Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation 42, no. 2 (2010): 229–40. http://dx.doi.org/10.2478/v10060-008-0081-7.

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Modelling of the effects of land use changes on flood hydrograph in a small catchment of the Płaskowicka, southern part of Warsaw, Poland This study concerns the influence of urbanized trend affected on the flood hydrograph in a small catchment in Warsaw. Based on recorded events a selected procedure for simulation rainfall-runoff process has been accepted for flood estimation. The Soil Conservation Services Curve Number method (SCS-CN) and empirical formulae for Nash model parameters, developed by Rao at al. were used to analyze the nine selected events from 2007 to 2009. The analysis confirm

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Pietronigro, Frank. "Research Project Number 33: Investigating the Creative Process in a Microgravity Environment." Leonardo 33, no. 3 (2000): 169–77. http://dx.doi.org/10.1162/002409400552469.

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The author, an interdiscipli-nary artist, discusses his creation of art in a microgravity environ-ment as part of the 1998 NASA Student Reduced Gravity Flight Program. He discusses his three-dimensional “drift paintings” which floated in the air along with his body in microgravity. The au-thor posits that the transcendent quality of the creative process can help keep the human spirit alive during long-term space missions.

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AUDET, CHARLES, SLIM BELHAIZA, and PIERRE HANSEN. "A NEW SEQUENCE FORM APPROACH FOR THE ENUMERATION AND REFINEMENT OF ALL EXTREME NASH EQUILIBRIA FOR EXTENSIVE FORM GAMES." International Game Theory Review 11, no. 04 (2009): 437–51. http://dx.doi.org/10.1142/s021919890900242x.

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This paper presents two new results on the enumeration of all extreme equilibria of the sequence form of a two person extensive game. The sequence form of an extensive game is expressed, for the first time to our knowledge, as a parametric linear 0 - 1 program. Considering Ext(P) as the set of all of the sequence form extreme Nash equilibria and Ext(Q) as the set of all the parametric linear 0 - 1 program extreme points, we show that Ext(P) ⊆ Ext(Q). Using exact arithmetics classes, the algorithm EχMIP Belhaiza (2002); Audet et al. (2006) is extended to enumerate all elements of Ext(Q). A smal

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Amathes, Pyrrhon, and Paul Christodoulides. "Interpreting Locked Photographic Data: The Case of Apollo 17 Photo GPN-2000-00113." Designs 5, no. 1 (2021): 8. http://dx.doi.org/10.3390/designs5010008.

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Photography can be used for pleasure and art but can also be used in many disciplines of science, because it captures the details of the moment and can serve as a proving tool due to the information it preserves. During the period of the Apollo program (1969 to 1972), the National Aeronautics and Space Administration (NASA) successfully landed humans on the Moon and showed hundreds of photos to the world presenting the travel and landings. This paper uses computer simulations and geometry to examine the authenticity of one such photo, namely Apollo 17 photo GPN-2000-00113. In addition, a novel

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Aiello, R. A., and S. Chi. "Advanced Composite Turboprops: Modeling, Structural, and Dynamic Analyses." Journal of Engineering for Gas Turbines and Power 110, no. 2 (1988): 306–11. http://dx.doi.org/10.1115/1.3240122.

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This paper presents a structural and dynamic analysis of a scaled-down wind tunnel model prop-fan blade made from fiber composites. This blade is one of a series of prop-fan blades that have been tested at the Lewis Research Center wind tunnel facilities. The blade is highly swept and twisted and of the spar/shell construction. Due to the complexity of the blade geometry and its high performance, it is subjected to much higher loads and tends to be much less stable than conventional blades. The structural and dynamic analyses of the blade were performed using the NASA-Lewis COBSTRAN computer c

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Gyekenyesi, John P. "Potential Composite Structures for NASA Future Launch Vehicles and Crew Spacecraft." Advanced Materials Research 410 (November 2011): 17. http://dx.doi.org/10.4028/www.scientific.net/amr.410.17.

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Because of their well known specific strength, stiffness and excellent durability properties, advanced composites are being considered for primary structures in launch vehicles, crew modules and various components for increased performance and cost reduction. Therefore, it is prudent and beneficial to review the engineering practices and lessons learned in connection with their use in related aeronautic and energy applications, where they are already replacing formerly used metallic materials. Examples of composite components will be shown for the reusable space shuttle orbiter where a number

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BAILIN, SIDNEY C., ROBERT H. GATTIS, and WALT TRUSZKOWSKI. "A LEARNING-BASED SOFTWARE ENGINEERING ENVIRONMENT FOR REUSING DESIGN KNOWLEDGE." International Journal of Software Engineering and Knowledge Engineering 01, no. 04 (1991): 351–71. http://dx.doi.org/10.1142/s0218194091000251.

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As part of the NASA/Goddard Code 522.3 research program in software engineering, a Knowledge-Based Software Engineering Environment (KBSEE) is being developed. The KBSEE will support a comprehensive artifact-reuse capability and will incorporate knowledge-based concepts such as machine learning and design knowledge capture. The distinguishing features of this work are that it is a systematic approach to the reuse of knowledge, not just of products, and it implements learning as an explicitly supported function in a software engineering environment. Each of these objectives is currently being p

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Weisbin, C., and D. Perillard. "R & D Profile Jet Propulsion Laboratory Robotic Facilities and Associated Research." Robotica 9, no. 1 (1991): 7–21. http://dx.doi.org/10.1017/s0263574700015526.

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SUMMARYThis paper describes the robotics facilities and associated research program of the Jet Propulsion Laboratory, lead center in telerobotics for the United States National Aeronautics and Space Administration. Emphasis is placed on evolution from teleoperation to remote System automation. Research is described in manipulator modelling and control, real-time planning and monitoring, navigation in outdoor terrain, real-time sensing and perception, human-machine interface, and overall System architectures. Applications to NASA missions emphasize robotic spacecraft for solar System exploratio

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Lawrence, B., C. R. Theodore, W. Johnson, and T. Berger. "A handling qualities analysis tool for rotorcraft conceptual designs." Aeronautical Journal 122, no. 1252 (2018): 960–87. http://dx.doi.org/10.1017/aer.2018.43.

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ABSTRACTOver the past decade, NASA, under a succession of rotary-wing programs, has been moving towards coupling multiple discipline analyses to evaluate rotorcraft conceptual designs. Handling qualities is one of the component analyses to be included in such a future Multidisciplinary Analysis and Optimization framework for conceptual design of Vertical Take-Off and Landing (VTOL) aircraft. Similarly, the future vision for the capability of the Concept Design and Assessment Technology Area of the U.S Army Aviation Development Directorate also includes a handling qualities component. SIMPLI-FL

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Wickramarathna, Sudeera, Jamon Van Den Hoek, and Bogdan Strimbu. "Automated detection of individual juniper tree location and forest cover changes using Google Earth Engine." Annals of Forest Research 64, no. 1 (2021): 61–72. http://dx.doi.org/10.15287/afr.2021.2145.

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Tree detection is the first step in the appraisal of a forest, especially when the focus is monitoring the growth of tree canopy. The acquisition of annual very high-resolution aerial images by the National Agriculture Imagery Program (NAIP) and their accessibility through Google Earth Engine (GEE) supports the delineation of tree canopies and change over time in a cost and time-effective manner. The objectives of this study are to develop an automated method to detect the crowns of individual western Juniper (Juniperus occidentalis) trees and to assess the change of forest cover from multispe

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LeBlanc, John. "By Way of Introduction." Arithmetic Teacher 32, no. 6 (1985): 2–3. http://dx.doi.org/10.5951/at.32.6.0002.

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The decription of the goal of elementary chool mathematics is often made using a two-dimensional model. One dimension include the content objectives, the other, the process objectives. Content objectives include the topics in mathematics that are studied. whereas proce objectives are the behaviors, the procees that student hould develop and use as the content objectives are studied and mastered. One such model used in the 1981–82 National Assessment of Educational Progress (NAEP 1981) is shown in figure 1. As an alternative to thi framework. some groups have identified a set of basic-skill are

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Yang, Ya-Ling, Hsing-Chun Kuo, Feng-Sheng Wang, and Ying-Hsien Huang. "MicroRNA-29a Disrupts DNMT3b to Ameliorate Diet-Induced Non-Alcoholic Steatohepatitis in Mice." International Journal of Molecular Sciences 20, no. 6 (2019): 1499. http://dx.doi.org/10.3390/ijms20061499.

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MicroRNA-29 (miR-29) has been found to reduce liver inflammation and fibrosis following a liver injury. Meanwhile, DNA methyltransferase has been reported to participate in the development of non-alcoholic steatohepatitis (NASH). The aim of this study is to investigate the miR-29a regulation of methyltransferase signaling and epigenetic program in NASH progression. Methods: miR-29a transgenic mice (miR-29aTg mice) and wild-type littermates were subjected to the methionine-choline-deficient (MCD) diet-induced animal model of NASH. Primary hepatic stellate cells were transfected with a miR-29a m

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Ryu, Jeseok, and Jinho Kim. "Non-Cooperative Indirect Energy Trading with Energy Storage Systems for Mitigation of Demand Response Participation Uncertainty." Energies 13, no. 4 (2020): 883. http://dx.doi.org/10.3390/en13040883.

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This work focuses on the demand response (DR) participation using the energy storage system (ESS). A probabilistic Gaussian mixture model based on market operating results Monte, Carlo Simulation (MCS), is required to respond to an urgent DR signal. However, there is considerable uncertainty in DR forecasting, which occasionally fails to predict DR events. Because this failure is attributable to the intermittency of the DR signals, a non-cooperative game model that is useful for decision-making on DR participation is proposed. The game is conducted with each player holding a surplus of energy

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Zhao, Feng, Chengquan Huang, Samuel N. Goward, et al. "Development of Landsat-based annual US forest disturbance history maps (1986–2010) in support of the North American Carbon Program (NACP)." Remote Sensing of Environment 209 (May 2018): 312–26. http://dx.doi.org/10.1016/j.rse.2018.02.035.

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Rubinovich, E. Ya. "On the Expansion of a Class of Open-Loop Evasion Control in the Simplest Two-Criteria Pursuit-Evasion Game of Two Purposes." Mekhatronika, Avtomatizatsiya, Upravlenie 20, no. 9 (2019): 524–31. http://dx.doi.org/10.17587/mau.20.524-531.

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The article is devoted to the formulation and solution of the two-criterion pursuit-evasion game on the plane of one pursuer against two targets, one of which is false. A false target is used to distract the pursuer, allowing the true target (in the process of diverting) to maximize the minimum possible distance to the pursuer. The specificity of the pursuer is that it has a circular classification zone of radius R, within which it has the ability to instantly classify the target as false or true. The game is that the pursuer minimizes the time required to approach one of the targets to a dist

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Barrus, Seth Michael, Gustavious Paul Williams, A. Woodruff Miller, et al. "Nutrient Atmospheric Deposition on Utah Lake: A Comparison of Sampling and Analytical Methods." Hydrology 8, no. 3 (2021): 123. http://dx.doi.org/10.3390/hydrology8030123.

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We describe modified sampling and analysis methods to quantify nutrient atmospheric deposition (AD) and estimate Utah Lake nutrient loading. We address criticisms of previous published collection methods, specifically collection table height, screened buckets, and assumptions of AD spatial patterns. We generally follow National Atmospheric Deposition Program (NADP) recommendations but deviate to measure lake AD, which includes deposition from both local and long-range sources. The NADP guidelines are designed to eliminate local contributions to the extent possible, while lake AD loads should i

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DANILIN, I. V. "NASA, Astropreneurs and future markets: new models of the U.S. innovation policy for space industry." Outlines of global transformations: politics, economics, law 11, no. 2 (2018): 166–83. http://dx.doi.org/10.23932/2542-0240-2018-11-2-166-183.

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Article analyzes the changes in the space economy, as well as the U.S. federal policy for preserving American domination in this area. The evolution of the space economy in the United States is briefly considered, including formation of venture businesses since late 1990s (due to the computer and Internet revolution and development of space technologies). Of particular importance is a so-called Astropreneurship – growth of startups, developing space launch systems and spacecrafts. Amid technological factors, the main driver for the rise of Astropreneurship was a suboptimal technological and ma

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Pransky, Joanne. "The Pransky interview: Dr Robert Ambrose, Chief, Software, Robotics and Simulation Division at NASA." Industrial Robot: An International Journal 42, no. 4 (2015): 285–89. http://dx.doi.org/10.1108/ir-04-2015-0071.

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Purpose – This paper, a “Q & A interview” conducted by Joanne Pransky of Industrial Robot Journal, aims to impart the combined technological, business and personal experience of a prominent, robotic industry engineer-turned entrepreneur regarding the evolution, commercialization and challenges of bringing a technological invention to market. Design/methodology/approach – The interviewee is Dr Robert Ambrose, Chief, Software, Robotics and Simulation Division at National Aeronautics and Space Administration (NASA)’s Johnson Space Center in Houston, Texas. As a young child, even before he sta

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Kumudha, P., and R. Venkatesan. "Cost-Sensitive Radial Basis Function Neural Network Classifier for Software Defect Prediction." Scientific World Journal 2016 (2016): 1–20. http://dx.doi.org/10.1155/2016/2401496.

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Effective prediction of software modules, those that are prone to defects, will enable software developers to achieve efficient allocation of resources and to concentrate on quality assurance activities. The process of software development life cycle basically includes design, analysis, implementation, testing, and release phases. Generally, software testing is a critical task in the software development process wherein it is to save time and budget by detecting defects at the earliest and deliver a product without defects to the customers. This testing phase should be carefully operated in an

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Rasheed, Adnan, Jong Lee, and Hyun Lee. "Development and Optimization of a Building Energy Simulation Model to Study the Effect of Greenhouse Design Parameters." Energies 11, no. 8 (2018): 2001. http://dx.doi.org/10.3390/en11082001.

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Energy management of the greenhouse is considered to be one of the most important challenges of greenhouse farming. Energy saving measures need considered, besides applying energy supplying techniques. To address this issue, a model was developed to simulate the thermal environment of a greenhouse using a Transient Systems Simulation Program (TRNSYS 17) as a building energy simulation (BES) platform. The model was calibrated by modifying the input parameters to minimize the uncertainties obtained from the results. Nash-Sutcliffe efficiency coefficients of 0.958 and 0.983 showed good agreement

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