Results 21 to 30 of about 595 (137)

Experimental Study on the Characteristics of Volumetric Strain Generation in Saturated Coral Sand: Effect of Fines Content and Density

工程科学与技术
With the ongoing construction of military and civilian infrastructure, the safety of infrastructure in Nansha Reef and offshore marine areas in the South China Sea has become a major concern.
Zhengtao YANG, Luyang WANG, Qi WU, Zhenglong ZHOU, Guoxing CHEN   +4 more
doaj   +1 more source

Liquefaction flow characteristics of saturated coral sand subjected to various patterns of cyclic loading

Yantu gongcheng xuebao, 2023
The accumulation of the excess pore water pressure of saturated sand under various cyclic loadings is the cause of soil liquefaction, and it is a relatively new research idea to treat the liquefiable sand as a fluid.
QIN You 1, YANG Zhengtao 1, WU Qi 1, ZHAO Kai 1, CHEN Guoxing 1, 2
doaj   +1 more source

Nonlinear seismic response characteristics of a coral island site

Yantu gongcheng xuebao, 2019
The seismic safety evaluation of the coral islands in the South China Sea is an urgent and fundamental scientific issue. For a coral island in the South China Sea, the cyclic triaxial tests on 16 sets of saturated coral sand samples are performed.
CHEN Guo-xing 1, ZHU Xiang 1, ZHAO Ding-feng 1, LIU Jing-ru 2
doaj   +1 more source

Experimental study on development patterns of volumetric strain and predictive modeling for saturated coral sands

Yantu gongcheng xuebao
The coral sand has better drainage conditions, and the drainage deformation of the saturated coral sand under earthquake and wave loads can easily cause damage to the seabed and nearby structures.
WANG Luyang 1, WU Qi 1, 2, ZHOU Zhenglong 1, ZHANG Xinlei 1, WANG Binghui 3, CHEN Guoxing 1
doaj   +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

Energy-based ue - εvp coupled incremental model of saturated marine coral sand subjected to cyclic loading

Applied Ocean Research
Evaluating the stability of coral islands and reefs in dynamic marine environments, such as waves, tsunamis, storm surges, and earthquakes, is a critical scientific issue in the field of marine geotechnical engineering.
Yi Fang, Kai Ren, Qi Wu, Qifei Liu, Guoxing Chen   +4 more
doaj   +1 more source

Automated object detection based on YOLOv11 for monitoring benthic population dynamics: A new approach combining photogrammetry and open‐source GIS tools applied to sea cucumbers

Remote Sensing in Ecology and Conservation, EarlyView.
This research established a new object detection model based on YOLOv11 to recognise benthic organisms, specifically sea cucumbers, by utilising high‐resolution photogrammetric‐based orthomosaics acquired along infralittoral Mediterranean Sea beds. The model demonstrated impressive performance metrics and, when combined with the Deepness plugin for the
Gian Mario Sangiovanni, Giovanna Jona Lasinio, Daniele Poggio, Gianluca Mastrantonio, Alessio Pollice, Arnold Rakaj, Midhun Mohan, Stefano Moro, Edoardo Casoli, Daniele Ventura   +9 more
wiley   +1 more source

Native habitat affinities predict fish invasions with post‐invasion habitat shifts

Journal of Animal Ecology, EarlyView.
Initial invasion success is gated by native pre‐adaptations, but post‐invasion establishment is characterized by habitat shifts. We demonstrate that forecasting risk based solely on native niches severely underestimates future ecological impacts, and we provide an empirically validated watchlist of future invaders.
Shahar Chaikin, Tal Gavriel, Avery Deveto, Shahar Malamud, Jonathan Belmaker   +4 more
wiley   +1 more source

Chronic thermal stress affects growth, liver morphology and molecular responses but allows recovery at optimal temperature in juvenile zebrafish (Danio rerio)

Journal of Fish Biology, EarlyView.
Abstract Climate‐driven aquatic heatwaves pose an increasing threat to fish populations by inducing prolonged thermal stress. However, the resilience of teleosts to chronic heat exposure and their capacity for recovery remains poorly understood. This study investigated the effects of chronic high‐temperature exposure on juvenile zebrafish (Danio rerio).
Monique Adzijovski, Aaron G. Schultz, Jemma Bergfeld, Luis O. B. Afonso   +3 more
wiley   +1 more source

K0 test and particle flow simulation of coral sands with different gradations

Frontiers in Earth Science
This paper performs a series of laboratory static lateral pressure coefficient (K0) tests on coral sands with five typical gradations in dry and saturated states via water bladder type lateral pressure apparatus to investigate their ranges of K0 values ...
Ruiyuan Zhang, Yongtao Zhang, Peishuai Chen, Fuquan Ji, Huiwu Luo, Yu Zhong, Yu Zhong   +6 more
doaj   +1 more source