Results 31 to 40 of about 1,892,539 (181)

Development of a Mechanically Regenerating Desublimator for Freeze‐Drying Systems in the Food Industry

Chemie Ingenieur Technik, EarlyView.
Thermal defrosting limits desublimator efficiency in freeze‐drying. This review and case study compares thermal versus mechanical regeneration, links frost properties and external heat transfer to energy demand, and summarizes pilot‐scale scraping results enabling single‐unit, continuous lyophilization.
Moritz Krummenacher, Mirko Kleingries, Edgar Zimmer, Roman Blättler   +3 more
wiley   +1 more source

Hybrid Simulation–Machine Learning Surrogates for Coordinate‐Based Solar and Wind Energy Yield Assessment in Iraq: A Streamlit Decision‐Support Tool

Energy Science &Engineering, EarlyView.
This study integrates climatic simulations with machine learning to predict solar and wind energy across Iraq. Results show Random Forest excels for solar (R2 = 0.98) and neural networks for wind (R2 = 0.97), enabling a practical web tool for renewable energy planning. ABSTRACT Driven by the global shift away from fossil fuels, solar and wind resources
Bassam Musheer Kareem, Abdolsalam Ebrahimpour, Jafar Ghafouri, Roghayyeh Motallebzadeh   +3 more
wiley   +1 more source

Prediction of Energetic Electrons in the Inner Radiation Belt and Slot Region With a Double‐Layer LSTM Neural Network Model

Space Weather
The prediction of high‐energy radiation belt electrons is vital for preventing their damage to satellites. Previous machine learning models mostly predict the fluxes of high‐energy electrons (hundreds of keV to MeV) in the outer radiation belt and slot ...
Ling Yang, Liuyuan Li, Jinbin Cao
doaj   +1 more source

Impact of the South Atlantic Anomaly on radiation exposure at flight altitudes during solar minimum

Scientific Reports, 2023
The South Atlantic Anomaly (SAA) is a geographical region over the South Atlantic Ocean where the inner Van Allen radiation belt extends down particularly close to Earth.
Matthias M. Meier, Thomas Berger, Thomas Jahn, Daniel Matthiä, Mona C. Plettenberg, Markus Scheibinger, Kai Schennetten, Michael Wirtz   +7 more
doaj   +1 more source

From Rare to Recurrent: Intensifying Hot–Dry Extremes Across Romania

International Journal of Climatology, EarlyView.
Romania has undergone a marked shift toward more frequent and spatially extensive compound hot–dry months since the 1990s, with persistent hotspots in the eastern Moldavian Plateau and the lower Danube–Bărăgan–Black Sea lowlands and comparatively buffered conditions at higher elevations.
Viorica Nagavciuc, Monica Ionita
wiley   +1 more source

Magnetospheric convection electric field dynamics and stormtime particle energization: Case study of the magnetic storm of 4 May 1998 [PDF]

, 2004
International audienceIt is shown that narrow channels of high electric field are an effective mechanism for injecting plasma into the inner magnetosphere. Analytical expressions for the electric field cannot produce these channels of intense plasma flow,
Liemohn, M. W., Newman, T.S., Khazanov, G.V., T. S. Newman, M.-C. Fok, Fok, M.C., Liemohn, M.W., A. J. Ridley, Ridley, A.J., Khazanov, G. V., Newman, T. S., Ridley, A. J., G. V. Khazanov, M. W. Liemohn, Fok, M.-C.   +14 more
core   +2 more sources

First Results From REPTile‐2 Measurements Onboard CIRBE

Geophysical Research Letters
CIRBE (Colorado Inner Radiation Belt Experiment), a 3U CubeSat, was launched on 15 April 2023 into a sun synchronous orbit (97.4° inclination and 509 km altitude).
Xinlin Li, Richard Selesnick, Yang Mei, Declan O’Brien, Benjamin Hogan, Zheng Xiang, Lengying Khoo, Hong Zhao, Quintin Schiller, Michael Temerin, Daniel N. Baker   +10 more
doaj   +1 more source

Cosmic rays and trapped protons as a source of the Earth’s positron radiation belt [PDF]

Geofísica Internacional, 2004
The possible existence of a positron radiation belt in the inner magnetosphere of the Earth, its space localization, flux and energy distribution and the ratio of e+/e- flux are considered.
N.G. Schuch, G. I. Pugacheva, V. M. Pankov, U. B. Jayanthi, A. A. Gusev   +4 more
doaj  

Forecast of the Energetic Electron Environment of the Radiation Belts

Space Weather, 2022
Different modeling methodologies possess different strengths and weakness. For instance, data based models may provide superior accuracy but have a limited spatial coverage while physics based models may provide lower accuracy but provide greater spatial
Simon N. Walker, Richard J. Boynton, Yuri Y. Shprits, Michael A. Balikhin, Alexander Y. Drozdov   +4 more
doaj   +1 more source

Revealing Dust Source Changes in East Asia From Past to Future: An Interpretable Deep Learning Approach

Land Degradation &Development, EarlyView.
ABSTRACT Aeolian dust source areas are controlled by climate and human activities and are closely associated with land degradation, yet their long‐term evolution under global warming remains insufficiently quantified. An integrated framework that couples a U‐Net segmentation model with Shapley Additive Explanations (SHAP) was built to map and attribute
Yanyu Li, Qizhong Wu, Xueshun Chen, Jiang Yue, Jieying He, Huaqiong Cheng   +5 more
wiley   +1 more source