Results 71 to 80 of about 3,985 (273)

Global warming strengthens atmospheric ducting

Atmospheric ducts (ADs) provide efficient electromagnetic wave channels for beyond line-of-sight (BLOS) propagation and can serve as a sensitive diagnostic factor for the change of lower atmosphere. Based on the ERA5 model-level reanalysis data (1979–2024), a global-scale assessment of the response of AD evolution to global warming has been revealed ...
xiaofeng Zhao, chunshan wei, Dongxiao Wang, Pinglv Yang, Yudi Liu, Xiaoqian Zhu   +5 more
openaire   +1 more source

Retrieving evaporation duct heights from measured propagation factors

, 2007
International audienceThe knowledge of refractivity is very important for coverage prediction. This problem is common above sea, where the particular atmospheric conditions lead to atmospheric ducts which strongly modify the range of the radar compared ...
R. Douvenot, H. Essen, Y. Hurtaud, Essen, H., Douvenot, Rémi, Saillard, Joseph, V. Fabbro, C. Bourlier, Fuchs, H.-H., H.H. Fuchs, Bourlier, Christophe, Fabbro, Vincent, J. Saillard   +12 more
core   +1 more source

Bridging Anatomy Curricular Gaps: Leveraging Student‐Created Video Resources in Elective Courses

Clinical Anatomy, EarlyView.
ABSTRACT Traditional anatomical donor‐based dissection has long served as the cornerstone of anatomical education. However, with increasingly condensed curricula and diverse student learning preferences, multimedia tools have become vital adjuncts to support engagement, comprehension, and accessibility. At the Carle Illinois College of Medicine (CI MED)
Megan A. Lim, Laura Shackelford, Wessam Ibrahim   +2 more
wiley   +1 more source

Investigating the spatio–temporal characteristics of lower atmospheric ducts across the China seas by performing a long–term simulation using the WRF model

Frontiers in Marine Science
In this work, a diagnostic scheme for lower atmospheric ducts was established based on the Weather Research and Forecasting (WRF) model. More specifically, a 10-year simulation test was conducted for the China seas to investigate the spatio-temporal ...
Qi Liu, Xiaofeng Zhao, Jing Zou, Tong Hu, Zhijin Qiu, Bo Wang, Zhiqian Li, Chaoran Cui, Rui Cao   +8 more
doaj   +1 more source

Toward a Paradigm Shift in Low‐Temperature SCR Catalyst Design: Defect Engineering and Data‐Driven Integration

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work systematically reviews the key factors influencing the performance of low‐temperature NH3‐SCR. The mechanism and challenges of defect engineering strategies, such as oxygen vacancies, heteroatom doping, crystal facet exposure, and surface reconstruction, in controlling both activity and selectivity were analyzed.
Rongrong Kan, Pinjing He, Fan Lü, Hua Zhang   +3 more
wiley   +1 more source

The electric field strength above atmospheric surface duct

, 2013
The paper presents a method which allows the calculation of the atmospheric distortion of radar pules, provided that the influence of the atmosphere is to transfer the transmitted signal through a duct.
Seliem, Adel A.S.Abo, Alseroury, Fathia A.M.   +1 more
core  

Experimental Investigation on Steam Generation Performance of a Solid Thermal Storage‐Based Steam Production System

Energy Science &Engineering, EarlyView.
1. Against the backdrop of the dual carbon goals and the transformation of the energy structure, traditional coal and natural gas boilers struggle to meet the demand for economical and stable steam supply in small and medium‐sized enterprises. In response, this study proposes a solid‐state thermal storage steam production system, aiming to provide a ...
Sun Yong, Liu Sai, Liu Congcong, Yang Chunhui, Yao Xinyu, Zhang Yujin   +5 more
wiley   +1 more source

Investigation on the Inversion of the Atmospheric Duct Using the Artificial Bee Colony Algorithm Based on Opposition-Based Learning

, 2016
The artificial bee colony (ABC) algorithm is a recently introduced optimization method in the research field of swarm intelligence. This paper presents an improved ABC algorithm named as OGABC based on opposition-based learning (OBL) and global best ...
Chao Yang, Li-Xin Guo, Jian-Ke Zhang
core   +1 more source

Dexmedetomidine infusions improve cardiovascular and renal function in anaesthetised, experimentally endotoxaemic horses

Equine Veterinary Journal, EarlyView.
Abstract Background Dexmedetomidine infusions are beneficial in anaesthetised endotoxaemic horses when administered concurrent to endotoxin, but post‐conditioning effects are unknown. Objectives To evaluate whether a dexmedetomidine infusion is beneficial in horses administered Escherichia coli O55:B5 lipopolysaccharides (LPS) endotoxin prior to ...
Sera Lee, Rachel C. Hector, Lynn Pezzanite, Eric Gilleland, Marlis L. Rezende   +4 more
wiley   +1 more source

Development of a Numerical Prediction Model for Marine Lower Atmospheric Ducts and Its Evaluation across the South China Sea

Journal of Marine Science and Engineering
The Coupled Ocean–Atmosphere–Wave–Sediment Transport (COAWST) model serves as the foundation for creating a forecast model to detect lower atmospheric ducts in this study.
Qian Liu, Xiaofeng Zhao, Jing Zou, Yunzhou Li, Zhijin Qiu, Tong Hu, Bo Wang, Zhiqian Li   +7 more
doaj   +1 more source