Showing 201 - 220 results of 375 for search '"NASA"', query time: 0.06s Refine Results
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    Obarvanje oljnih premazov z utekočinjenim lesom by Matjaž Pavlič, Anja Šporar, Jure Žigon

    Published 2024-02-01
    “…Barvne razlike smo določili z meritvami barve pred premazovanjem in po njem ter po izpostavitvi UV svetlobi. Naša raziskava je potrdila, da je UL kompatibilen s tungovim in Bio impregnol WM oljem, ter se posledično lahko uspešno uporablja za njuno za njuno obarvanje. …”
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    Analysis of accuracy of the beginning of hijriah months reckoning of ad-Dur al-Aniq book in 20 years by Muchamad Choirun Nizar, Bashori Alwi

    Published 2020-11-01
    “…After comparing the calculation results using the Jean Meeus algorithm and NASA SKYCAL, the result is that the average difference between the three calculations is no more than 2 minutes.…”
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    Remaining useful life prediction of lithium-ion batteries using a novel particle flow filter framework with grey model by Wang Shuai, Li Yiting, Zhou Shoubin, Chen Lifei, Michael Pecht

    Published 2025-01-01
    “…Finally, a test dataset is divided into early, middle, and late stages to predict the RUL of LIBs and obtain the probability distributions. On the CALCE and NASA PCoE LIB dataset, GM-PFF reduces RMSE by 1% compared to PFF, exhibiting a higher prediction accuracy and effectively addressing the particle degradation problem.…”
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  8. 208

    Using the Nonuniform Dynamic Mode Decomposition to Reduce the Storage Required for PDE Simulations by Brenton T. Hall, Ching-Shan Chou, Jen-Ping Chen

    Published 2019-01-01
    “…The NU-DMD was also applied to a computational fluid dynamics simulation of a NASA single-stage compressor rotor, which resulted in a reduced model of the simulation (using only three of the five simulation variables) that used only about 4.67% of the full simulation’s storage with an overall average percent error of 8.90%. …”
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  9. 209

    The Three-Dimensional Structure of Transatlantic African Dust Transport: A New Perspective from CALIPSO LIDAR Measurements by Dong Liu, Yingjian Wang, Zhien Wang, Jun Zhou

    Published 2012-01-01
    “…We analyzed over two years of LIDAR measurements from NASA’s CALIPSO and CloudSat satellites to document the vertical pathways of transatlantic transport of Saharan dust. …”
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  10. 210

    Space Climate and Solar Energetic Particles by Ehsan Tavabi, Sima Zeighami, Yones Kharaghani

    Published 2024-04-01
    “…For this purpose, we use the source of data recorded from the momentary position of the Sun in reliable sites, as well as information recorded from the flow of cosmic particles on the surface of the Earth by the GOES (Geostationary Operational Environmental Satellite) detector, which belongs to the NASA space agency. Solar activity affects the Earth's geomagnetic field and creates a geoelectric field on the Earth's surface. …”
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  11. 211

    Sensitivity of Model Estimates of CME Propagation and Arrival Time to Inner Boundary Conditions by Lauren A. James, Christopher J. Scott, Luke A. Barnard, Mathew J. Owens, Matthew S. Lang, Shannon R. Jones

    Published 2023-04-01
    “…By highlighting the impact CME shape has on Root‐Mean‐Square‐Error (RMSE) values, we show that time‐elongation profiles of fronts captured by the Heliospheric Imager (HI) instruments onboard NASA's STEREO mission match those of the modeled CME nose and flank and can therefore be used to infer details of the longitudinal extent of the CME. …”
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    Radiation Exposure and Shielding Effects on the Lunar Surface by Daniel Matthiä, Thomas Berger

    Published 2024-12-01
    “…This work investigated the expected dose rates for maximum GCR intensity and the total dose from several historical solar energetic particle events, including the NASA reference event, through the application of numerical simulations with the Geant4 Monte‐Carlo framework. …”
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    RESEARCH ON THE DESIGN METHOD OF THE AEROSPACE STANDARD THIN-WALLED SPECIMEN TO MEASURE THE PRECISION OF MACHINE TOOL by JIANG XiaoHui, ZHANG ZhenYa, LI HaoLin, YAO Yao

    Published 2017-01-01
    “…In this study,according to the advantages and disadvantages of standard specimen of the universal five-axis NC machine tools,comparing the structural characteristics and machine features for the testing performance of ISO international standard specimen, NASA979 series specimen,"S"shape of the specimen and other specimens. …”
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    Investigating Potential Causes for the Prediction of Spurious Magnetopause Crossings at Geosynchronous Orbit in MHD Simulations by Pauline M. Dredger, Ramon E. Lopez, Yaireska M. Collado‐Vega, Shreeya Khurana, Lutz M. Rastaetter

    Published 2023-06-01
    “…This study investigates four storms with a magnetopause crossing by at least one GOES satellite, using four magnetohydrodynamic models at NASA's Community Coordinated Modeling Center to simulate the events, and analyzes the results to investigate the reasons for errors in the predictions. …”
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    Microgrids for Extraterrestrial Habitats: A Review of Technologies, Needs, and Challenges by Leila Chebbo, Muhammed Ali Gultekin, Ali Bazzi, Sean A. Q. Young, Joseph P. Kozak

    Published 2025-01-01
    “…The National Aeronautics and Space Administration (NASA) and other space organizations are preparing for new space exploration and habitation initiatives. …”
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