Results 41 to 50 of about 1,371,683 (237)

Resolving the biome debate: ecological and palaeo‐data concur that the extensive tree‐limited grassy biomes of central and north‐western Madagascar are largely anthropogenic

Biological Reviews, EarlyView.
ABSTRACT For millennia, human activities have transformed ecosystems globally. Determining which landscapes are predominantly anthropogenic is crucial to conservation and habitat restoration. Madagascar, a critically‐threatened biodiversity hotspot, is a prominent example.
Grant S. Joseph, Sean Hixon, Colleen L. Seymour, Laurie R. Godfrey, Miguel Pedrono, Karen E. Samonds, Andrinajoro R. Rakotoarivelo, Brooke E. Crowley   +7 more
wiley   +1 more source

Investigation of dynamic radiation belt characteristics and mechanisms in EAST tokamak

Nuclear Fusion
A dynamic radiation belt—exhibiting characteristics of intense radiation, high density, and low electron temperature, akin to multifaceted asymmetric radiation from the edge (MARFE)—was observed and investigated in the Experimental Advanced ...
Bingcheng Qi, Fang Ding, Qing Zhang, Tonghui Shi, Yue Yu, Jinju Yang, Jingsheng Yuan, Lin Yu, Lifeng Yang, Minrui Wang, Weiming Li, Yanmin Duan, Wei Gao, Hailin Zhao, Chenyuan Zhang, Yanze Peng, Zhenhua Hu, Liang Wang, Haishan Zhou, Guosheng Xu, Guang-nan Luo, the EAST Team   +21 more
doaj   +1 more source

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

Importance of electron distribution profiles to chorus wave driven evolution of Jovian radiation belt electrons

Earth and Planetary Physics, 2018
Wave-particle interactions triggered by whistler-mode chorus waves are an important contributor to the Jovian radiation belt electron dynamics. While the sensitivity of chorus-driven electron scattering to the ambient magnetospheric and wave parameters ...
Jing Huang, XuDong Gu, BinBin Ni, Qiong Luo, Song Fu, Zheng Xiang, WenXun Zhang   +6 more
doaj   +1 more source

Radial Transport Versus Local Acceleration: The Long‐Standing Debate

Earth and Space Science, 2022
On 28 July 2021, within the Geospace Environment Modeling Virtual Summer Workshop, a joint panel discussion organized by the “System Understanding of Radiation Belt Particle Dynamics through Multi‐spacecraft and Ground‐based Observations and Modeling ...
Alexander Y. Drozdov, Lauren W. Blum, Michael Hartinger, Hong Zhao, Solène Lejosne, Mary K. Hudson, Hayley J. Allison, Louis Ozeke, Allison N. Jaynes   +8 more
doaj   +1 more source

An optimizing microseismic method for rock burst early warning based on mining production process

Deep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han, Linming Dou, Wu Cai, Mingbo Chi, Guojun Xi, Shuai Chen, Biao Jiao   +6 more
wiley   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Quantitative assessment of Earth’s radiation belt modeling [PDF]

, 2017
The “Quantitative Assessment of Radiation Belt Modeling” focus group was in place at Geospace Environment Modeling from 2014 to 2018. The overarching goals of this focus group were to bring together the current state‐of‐the‐art models for the ...
Morley, S.K., Tu, Weichao, Li, Wen, Albert, J.M., S. K. Morley, Weichao Tu, Wen Li, J. M. Albert   +7 more
core   +3 more sources

On the Performance of a Real‐Time Electron Radiation Belt Specification Model

Space Weather
Maintaining accurate real‐time hindcast and forecast specification of the radiation environment is essential for operators to monitor and mitigate the effects of hazardous radiation on satellite components.
Frances Staples, Adam Kellerman, Janet Green   +2 more
doaj   +1 more source

Global patterns of treeline predictability and the gap between the forest and the treeline

Ecography, EarlyView.
The alpine treeline is the highest elevation at which trees can grow, which is assumed to be controlled by temperature and globally predictable. However, many upper forest limits (UFLs) do not reach this elevation, due natural factors and human disturbance.
Erickson G. Urquiaga‐Flores, Michael Kessler, Maaike Y. Bader   +2 more
wiley   +1 more source