Results 51 to 60 of about 5,821,392 (249)

Effect of Space Flight Factor on Dormant Stages in Aquatic Organisms: A Review of International Space Station and Terrestrial Experiments

Life, 2021
This work is a review of the experiments carried out in the Russian segment of the ISS (inside and outside) from 2005 to 2016 on the effect of the space flight factor on the resting stages of organisms.
Victor R. Alekseev, Jiang-Shiou Hwang, Margarita A. Levinskikh   +2 more
doaj   +1 more source

Extraterrestrial [PDF]

, 2014
Electrochemical sensors, especially ion-selective electrodes, are ideally suited for analyses of extraterrestrial environments where comparatively little is known about the chemistry: they have remarkably high sensitivity over a wide dynamic range and ...
Samuel P. Kounaves, O’Neil, Glen D, Kounaves, Samuel P, Kyle M. McElhoney, McElhoney, Kyle M, Glen D. O’Neil   +5 more
core   +1 more source

Techno‐Economic and Quasi‐Dynamic Load Flow Analysis of a Hybrid Renewable Microgrid for Coastal Industrial Loads

Energy Science &Engineering, EarlyView.
A hybrid PV–wind grid‐connected microgrid for Mongla Port is optimized using HOMER Pro and validated via DIgSILENT quasi‐dynamic load flow. The system achieves a low cost of energy (0.0341 USD/kWh), 70.9% renewable penetration, improved voltage stability, and significant emission reduction, demonstrating a reliable and cost‐effective solution for ...
Md. Behesty Hasan Sagor, Md Abdus Samad Kamal, Md. Feroz Ali, Md. Mahedi Hasan, Fahad Saleh Al‐Ismail, Md Shafiul Alam, Mohammad Ali   +6 more
wiley   +1 more source

Preventing the Risks of Inadequate Human-Computer Interaction (HCI) Systems in Manned Spacecraft Missions: Toward an International Public Policy Framework Proposal [PDF]

Advanced Space Law
This scientific research paper analyzes the link between space technology and space law through specifically designed Human-Computer Interaction (HCI) systems applied in manned spacecraft missions, notably by the National Aeronautics and Space ...
Stefani Stojchevska, Sami Mehmeti
doaj   +1 more source

UWB and MB-OFDM for Lunar Rover Navigation and Communication

Mathematics, 2023
This paper presents a comprehensive study of ultra-wideband (UWB) and multi-band orthogonal frequency-division multiplexing (MB-OFDM) technologies for lunar rover navigation and communication in challenging terrains. Lunar missions pose unique challenges,
J. de Curtò, I. de Zarzà, Carlos T. Calafate   +2 more
doaj   +1 more source

Predicting Solar Photovoltaic Power Output in Saudi Arabia's Jazan Region: Performance Comparison of Machine Learning Models

Energy Science &Engineering, EarlyView.
Workflow of the PV power estimation and ML forecasting methodology. ABSTRACT Accurate prediction of solar panel energy output is vital for managing power systems effectively and maintaining a stable electrical grid. This is especially important in regions that rely heavily on renewable sources. This research provides a direct comparison of five machine
Abdoalateef Alzhrani, Abdullahi Abubakar Mas'ud, Mohd Khairul Amri Kamarudin, Firdaus Muhammad‐Sukki, Abdullahi Mohammad   +4 more
wiley   +1 more source

Kansas environment, 1981

, 1981
This internet resource combines newsletters issued throughout the year.
Kansas. Division of Environment
core   +1 more source

From Cultured Vascular Cells to Vessels: The Cellular and Molecular Basis of Vascular Dysfunction in Space

Frontiers in Bioengineering and Biotechnology, 2022
Life evolved on this planet under the pull of gravity, shielded from radiation by the magnetosphere and shaped by circadian rhythms due to Earth’s rotation on its axis.
Laura Locatelli, Sara Castiglioni, Jeanette A. M. Maier, Jeanette A. M. Maier   +3 more
doaj   +1 more source

Local Structures of Se and Br in Cretaceous–Paleogene Boundary Sediments and Concentration Effects of Ferrihydrite Originating From Impact Ejecta

Geological Journal, EarlyView.
Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai, Akira Yoshiasa, Ginga Kitahara, Makoto Tokuda, Satoko Ishimaru, Toshihiro Moriga   +5 more
wiley   +1 more source

Habitable planetary environments and extraterrestrial life [PDF]

Chinese Science Bulletin, 2016
Arguably one of the most important discoveries in the history of human being is the detection of a planet orbiting a main sequence star beyond the solar system. By the time Science celebrated its 125th anniversary, ~150 exoplanets have been discovered. However, there was no known habitable exoplanet.
openaire   +1 more source