Results 41 to 50 of about 5,535 (166)

Stress-strain model and deformation parameters of K0-consolidated coral sand

Yantu gongcheng xuebao, 2023
The stress path followed by soil consolidation in the hydraulic filling site where the coral sand is used as the filling materials is characterized by K0-consolidation. In order to investigate the stress-strain behaviors of the K0-consolidated coral sand,
ZHANG Jiru , PENG Weike , ZHENG Yanjun
doaj   +1 more source

Integrating and assessing metacommunity drivers of ecosystem function and resilience in benthic algal systems

Oikos, EarlyView.
Understanding the scales and mechanisms by which species composition interacts with ecosystem functions is critical for forecasting the effects of environmental perturbations on ecosystem services. However, the linkages between what regulates the ecosystem functions of dispersal‐capable networks of communities (metacommunities) and what regulates a ...
Thomas P. Shannon, Evelyn E. Gaiser
wiley   +1 more source

Performance of a Subgrade-Embankment-Seawall System Reinforced by Drainage PCC Piles and Ordinary Piles Subjected to Lateral Spreading

Geofluids, 2023
Coral sand is widely distributed in coastal areas and used as a soil foundation in an increasing number of projects. Historical records show that the liquefaction and lateral spreading of coral sand foundations occurred many times during earthquakes ...
Zhixiong Chen, Buxin Wang, Chenglong Wang, Yonghong Wang, Peng Xiao, Kangyin Li   +5 more
doaj   +1 more source

Influences of gradation on particle breakage and deformation characteristics of coral sand

Yantu gongcheng xuebao, 2023
The mechanical properties of coral sand are significantly affected by the change of gradation due to the particle breakage. A series of triaxial consolidated drained shear tests are carried out to investigate the influences of the initial gradation and ...
CAI Zhengyin , CHEN Yuanyi , ZHU Xun , TANG Yi
doaj   +1 more source

Botanic and heritage gardens as living laboratories in the age of the polycrisis

PLANTS, PEOPLE, PLANET, EarlyView.
Societal Impact Statement Cities face intertwined crises of climate, biodiversity loss and social disconnection. We show how botanic and heritage gardens can help address these challenges as living laboratories to generate place‐based evidence and public engagement.
Kevin Frediani
wiley   +1 more source

FLSea: Underwater Visual–Inertial and Stereovision Forward‐Looking Data Sets

Journal of Field Robotics, EarlyView.
ABSTRACT Visibility underwater is challenging and degrades as the distance between the subject and the camera increases. That is why forward‐looking underwater computer vision tasks are difficult. We have collected underwater forward‐looking stereovision and visual–inertial image sets using two underwater imaging platforms, a stereo camera rig, and an ...
Yelena Randall, Ori Lifschitz, Tali Treibitz   +2 more
wiley   +1 more source

Large-Scale Triaxial Test on Mechanical Behavior of Coral Sand Gravel Layered Samples

Journal of Marine Science and Engineering
Layered structures comprising coral sand and gravel have been observed in hydraulic filled foundations in the coral reefs in the South China Sea, leading to anisotropy in their physical and mechanical properties.
Xinyue Tang, Dongfeng Xin, Xuewen Lei, Ting Yao, Qingshan Meng, Qingbing Liu   +5 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

Resonant column tests on maximum shear modulus and damping ratio of coral sand

Yantu gongcheng xuebao, 2020
The resonant column tests on the effects of relative density and confining pressure on the maximum modulus and damping ratio of coral sand in South China Sea under small strain are performed.
LI Xiao-mei 1, WANG Fang 1, HAN Lin 2, GUAN Yun-fei 1, ZHAN Xin-jie 1
doaj   +1 more source

Deep learning‐based super‐resolution reconstruction and improved YOLOv9 for efficient benthos detection: a case study at Lake Hamana, Japan

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a UAV‐based framework that integrates deep learning‐based super‐resolution reconstruction and an enhanced YOLO detector to improve centimetre‐scale benthic organism monitoring. Using hermit crabs in Lake Hamana, a coastal lagoon in Japan, as a case study, the method substantially enhanced small‐object detection performance ...
Fan Zhao, Bangzhang Ma, Dianhan Xi, Jiaqi Wang, Yijia Chen, Yongying Liu, Xinlei Shao, Mowen Zhang, Guocheng Zhang, Jundong Chen, Katsunori Mizuno   +10 more
wiley   +1 more source