Showing 281 - 300 results of 375 for search '"NASA"', query time: 0.05s Refine Results
  1. 281

    Beamline and Flight Comparisons of the ARMAS Flight Module With the Tissue Equivalent Proportional Counter for Improving Atmospheric Radiation Monitoring Accuracy by Brad “Buddy” Gersey, W. Kent Tobiska, William Atwell, Dave Bouwer, Leonid Didkovsky, Kevin Judge, Seth Wieman, Richard Wilkins

    Published 2020-12-01
    “…In addition, both detectors were exposed neutrons at the Los Alamos Neutron Science Center, protons at Loma Linda University Medical Center, 56Fe particles at the NASA Space Radiation Laboratory, and also a gamma radiation source at Lawrence Livermore National Laboratory. …”
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  2. 282
  3. 283

    EXPERIENCE OF USING PLANET EARTH OBSERVATION DATA IN RETRAINING COURSES FOR EDUCATORS IN THE JUNIOR ACADEMY OF SCIENCES OF UKRAINE by Stanislav O. Dovgyi, Svitlana M. Babiichuk, Olha V. Tomchenko

    Published 2023-06-01
    “…The paper describes the stages of special course organization, topics, and tools used in the lectures and case studies, including an overview of the data sources, such as EO-Browser, ArcGIS Online, Google my Maps, NASA Worldview and Google Earth, etc. The paper presents a detailed description of one of the hands-on case studies of water bodies in EO-Browser. …”
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  4. 284

    A comprehensive global mapping of offshore lighting by C. D. Elvidge, T. Ghosh, N. Chatterjee, N. Chatterjee, M. Zhizhin, M. Zhizhin, P. C. Sutton, M. Bazilian

    Published 2025-02-01
    “…The sensor is the day–night band (DNB) flown as part of the NASA/NOAA Visible Infrared Imaging Radiometer Suite (VIIRS). …”
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  5. 285

    The Impact of Space Radiation on Brains of Future Martian and Lunar Explorers by Yuncong Li, Jingnan Guo, Salman Khaksarighiri, Mikhail Igorevich Dobynde, Jian Zhang, Bailiang Liu, Robert F. Wimmer‐Schweingruber

    Published 2023-10-01
    “…Our calculations show that GCR induced absorbed dose per month in the brain does not reach the 30‐day limit for CNS (500 mGy) as defined by NASA on either Martian or lunar surface. Based on the spectra and frequency of historical extreme SEP events recorded at Earth as ground‐level enhancement events over past five solar cycles, our results suggest that the CNS of astronauts will be generally “safe” on the Martian surface, but those on the lunar surface or in deep space may face radiation risks in their CNS if not well shielded during such extreme events.…”
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  6. 286

    Impact of Using Near Real-Time Green Vegetation Fraction in Noah Land Surface Model of NOAA NCEP on Numerical Weather Predictions by Li Fang, Xiwu Zhan, Christopher R. Hain, Jicheng Liu

    Published 2018-01-01
    “…Simulations of the off-line Noah LSM in the Land Information System (LIS) and weather forecasts of the NASA-Unified Weather and Research Forecasting (NUWRF) were obtained using either the static multiyear average AVHRR GVF data set or the NRT MODIS GVF while meteorological forcing data and other settings were kept the same. …”
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  7. 287

    DGL-STFA: Predicting lithium-ion battery health with dynamic graph learning and spatial–temporal fusion attention by Zheng Chen, Quan Qian

    Published 2025-01-01
    “…Extensive experiments were conducted on the NASA and CALCE battery datasets, comparing this framework with traditional time-series prediction methods and other graph-based prediction methods. …”
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  8. 288

    Validation of the DSCOVR Spacecraft Mission Space Weather Solar Wind Products by Paul T. M. Loto'aniu, K. Romich, W. Rowland, S. Codrescu, D. Biesecker, J. Johnson, H. J. Singer, A. Szabo, M. Stevens

    Published 2022-10-01
    “…The DSCOVR observations of the interplanetary magnetic field (IMF), solar wind velocity, density, and temperature were hourly averaged and compared to measurements from NASA's Advanced Composition Explorer (ACE) and Wind spacecraft. …”
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  9. 289
  10. 290

    Rapid estimation method of lithium battery state of health based on novel health feature by DONG Xiaohong, DONG Jinbo, WANG Mingshen, ZENG Fei, PAN Yi

    Published 2025-01-01
    “…Next, by analyzing the oxford battery aging dataset and the random usage dataset of lithium ion batteries used by NASA, the method traverses the constant current charging voltage range in steps of 0.01 V and determines the optimal starting voltage of the lithium battery by maximizing the Pearson correlation coefficient. …”
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  11. 291
  12. 292

    Accelerating AI-Based Battery Management System’s SOC and SOH on FPGA by Satyashil D. Nagarale, B. P. Patil

    Published 2023-01-01
    “…We developed an LSTM and BiLSTM model with four hidden layers with 128 LSTM or BiLSTM units per hidden layer that use Panasonic 18650PF Li-ion dataset released by NASA to predict SOC and SOH. Our experimental results advise that the selection of the optimal gradient descent algorithm impacts the model’s accuracy. …”
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  13. 293

    The Diurnal Variation of L-Band Polarization Index in the U.S. Corn Belt Is Related to Plant Water Stress by Richard Cirone, Brian K. Hornbuckle

    Published 2025-01-01
    “…We compare 6 a.m. and 6 p.m. L-band PI from NASA’s Soil Moisture Active Passive (SMAP) satellite to the evaporative stress index (ESI) in the U.S. …”
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  14. 294

    Prediction of the SYM‐H Index Using a Bayesian Deep Learning Method With Uncertainty Quantification by Yasser Abduallah, Khalid A. Alobaid, Jason T. L. Wang, Haimin Wang, Vania K. Jordanova, Vasyl Yurchyshyn, Huseyin Cavus, Ju Jing

    Published 2024-02-01
    “…SYMHnet takes, as input, the time series of the parameters' values provided by NASA's Space Science Data Coordinated Archive and predicts, as output, the SYM‐H index value at time point t + w hours for a given time point t where w is 1 or 2. …”
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  15. 295
  16. 296

    On the Lunar Origin of Near-Earth Asteroid 2024 PT5 by Theodore Kareta, Oscar Fuentes-Muñoz, Nicholas Moskovitz, Davide Farnocchia, Benjamin N. L. Sharkey

    Published 2025-01-01
    “…We obtained visible and near-infrared reflectance spectra of PT5 with the Lowell Discovery Telescope and NASA Infrared Telescope Facility on 2024 August 16. …”
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  17. 297

    Investigation of Information Overload in Electronic Health Records: Protocol for Usability Study by Saif Khairat, Jennifer Morelli, Marcella H Boynton, Thomas Bice, Jeffrey A Gold, Shannon S Carson

    Published 2025-02-01
    “…We also surveyed providers on their institution’s EHR to better understand how they rate the system’s task load and usability using the NASA (National Aeronautics and Space Administration) Task Load Index and Computer System Usability Questionnaire. …”
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  18. 298

    Metallicity Dependence of Giant Planets around M Dwarfs by Tianjun Gan, Christopher A. Theissen, Sharon X. Wang, Adam J. Burgasser, Shude Mao

    Published 2025-01-01
    “…All metallicity measurements are homogeneously obtained through the same methodology based on the near-infrared spectra collected with a single instrument SpeX mounted on the NASA Infrared Telescope Facility. We find that (1) giant planets favor metal-rich M dwarfs at a 4 σ –5 σ confidence level, depending on the band of spectra used to derive metallicity; (2) hot ( a / R _* ≤20) and warm ( a / R _*  > 20) Jupiters do not show a significant difference in the metallicity distribution. …”
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  19. 299

    High-resolution canopy fuel maps based on GEDI: a foundation for wildfire modeling in Germany by Johannes Heisig, Milutin Milenković, Edzer Pebesma

    Published 2025-01-01
    “…We propose a two-step approach where we first use measurements from NASA’s Global Ecosystem Dynamics Investigation (GEDI) instrument to estimate canopy fuel variables at the footprint level, before predicting high-resolution raster maps. …”
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  20. 300