Results 21 to 30 of about 37,752 (264)

Electrooptical complex for terrain on-time survey

Научный вестник МГТУ ГА, 2019
The article deals with a number of approaches to the use of electrooptical systems and unmanned aerial vehicles (UAV) to solve the tasks of live terrain surface screening, air incident spots and objects survey.
S. B. Stukalov, D. S. Stukalov, V. I. Kondrikov, R. S. Gavryushin   +3 more
doaj   +1 more source

Remote influence of the Atlantic multidecadal oscillation on the autumn surface air temperature in Southwest China

Earth and Planetary Physics
Southwest China (SWC) is one of the major grain-producing areas in China, and the surface air temperature (SAT) during autumn has a substantial influence on grain production and planting.
WeiLing Xu, Yang Li, QuanLiang Chen, Xin Zhou, XingWen Jiang, Wei Wang, LiDou Huyan, Xiao Li, YangJie Jiang, RuiHan Deng, GuiPing Zhang, Yun Zhu   +11 more
doaj   +1 more source

Spatiotemporal Evolution of Drought–Flood Abrupt Alternation Events and Their Relationship with Evapotranspiration in Southwest China: Based on CMIP6 Models and Future Projections

Atmosphere
Drought–flood abrupt alternation (DFAA) events have emerged as a critical type of compound climate extreme under ongoing climate change, posing increasing risks to water resources and ecosystems in Southwest China.
Shangru Li, Xiehui Li, Lei Wang, Xuejia Wang   +3 more
doaj   +1 more source

Spatiotemporal Imbalance of Carbon Balance Pressure in Sichuan–Chongqing: Anthropogenic Emissions vs. Vegetation Sinks and Their Explanatory Factors

Earth
Regional green development requires balancing anthropogenic carbon emissions (CEs) with vegetation carbon sequestration (VCS). Using the CASA model and plant photosynthesis equation, we estimated VCS from net primary productivity (NPP) and proposed a ...
Jialing Jian, Ping Kang, Haopeng Feng, Jia Li, Ludan Li, Yuan Shen, Yang Wang   +6 more
doaj   +1 more source

On the self-similarity of wind turbine wakes in a complex terrain using large eddy simulation [PDF]

Wind Energy Science, 2019
We perform large eddy simulation of flow in a complex terrain under neutral atmospheric stratification. We study the self-similar behavior of a turbine wake as a function of varying terrain complexity and perform comparisons with a flat terrain.
A. S. Dar, A. S. Dar, J. Berg, N. Troldborg, E. G. Patton   +4 more
doaj   +1 more source

Observational Analysis of a Southwest Vortex-Induced Severe Rainfall Event Triggering Fatal Landslides over Southwest China in 2024

Atmosphere
In July 2024, a severe rainfall event struck Sichuan Province, Southwest China, triggering deadly landslides and causing significant societal impacts. This study investigates the spatiotemporal characteristics and underlying mechanisms of the event using
Keming Zhang, Yangruixue Chen, Na Xie, Jiafeng Zheng, Chuhui Huang, Keji Long, Hongru Xiao, Juan Zhou, Chaoyong Tu, Liyan Xie, Yongqian Li, Dan Xiang   +11 more
doaj   +1 more source

Mean gust factors in complex terrain

Meteorologische Zeitschrift, 2004
Gust factors are analyzed for wind speeds greater than 10 m/s in a large set of data from automatic weather stations in the complex terrain of Iceland. The mean gust factors appear to be independent of the static and dynamic stability of the atmosphere ...
Hálfdán Ágústsson, Haraldur Ólafsson   +1 more
doaj   +1 more source

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

Advanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang, Kun‐Hao Yu, Ji Yoon Bae, Yunchan Lee, Dorit Aviv, Shu Yang   +5 more
wiley   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Using computational learning for non-melanoma skin cancer and actinic keratosis near-infrared hyperspectral signature classification

Photodiagnosis and Photodynamic Therapy
Background: The early detection of Non-Melanoma Skin Cancer (NMSC) is essential to ensure patients receive the most effective treatment. Diagnostic screening tools for NMSC are crucial due to high confusion rates with other types of skin lesions, such as
Lloyd A. Courtenay, Inés Barbero-García, Saray Martínez-Lastras, Susana Del Pozo, Miriam Corral, Diego González-Aguilera   +5 more
doaj   +1 more source