Results 41 to 50 of about 82,775 (258)

Critical state and constitutive model for coral sand considering particle breakage

Yantu gongcheng xuebao, 2019
The critical state is a very important concept in soil mechanics, and it is the foundation of many constitutive models for soils. As for the coral sand, due to significant particle breakage, its deformation characteristics and critical state are worthy ...
CAI Zheng-yin 1, HOU He-ying 1, ZHANG Jin-xun 2, ZHANG Lei 2, GUAN Yun-fei 1, CAO Yong-yong 1
doaj   +1 more source

Influence of coral and algal exudates on microbially mediated reef metabolism. [PDF]

, 2013
Benthic primary producers in tropical reef ecosystems can alter biogeochemical cycling and microbial processes in the surrounding seawater. In order to quantify these influences, we measured rates of photosynthesis, respiration, and dissolved organic ...
Carlson, Craig A., Haas, Andreas F., Hatay, Mark, Leichter, James J., Leichter, Jeffrey, Nelson, Craig E., Quistad, Steven D., Rohwer, Forest, Smith, Jennifer E., Wegley-Kelly, Linda   +9 more
core   +3 more sources

Comparative study of Steel-FRP, FRP and steel reinforced coral concrete beams in their flexural performance [PDF]

, 2020
In this paper, a comparative study of Carbon Fiber Reinforced Polymer (CFRP) Bar and Steel-Carbon Fiber Composite Bar (SCFCB) reinforced coral concrete beams are made through a series experimental tests and theoretical analysis.
Fu, F., Huang, C., Wang, L., Zhang, J.
core   +1 more source

A Large‐Area Broadband Multimodal Dual‐Resonant Haptic Device for Bidirectional Telerobotic and Augmented Interactions

Advanced Science, EarlyView.
We present a large‐area bidirectional human–machine interface integrating electrostatic multimodal tactile sensing with a dual‐resonant haptic actuator. The system enables linear pressure sensing that is decoupled from actuation and stable broadband vibrotactile feedback under dynamic contact conditions, supporting real‐time feedback modulation aligned
Jihun Son, Joon Hyeok Kang, Jaeha Park, Yoon‐Gi Ku, Yongjun Lee, Jinhyung Kim, Minjin Kim, Jun Hyeok Lee, Junsik Shin, Minwoo Song, Gui Won Hwang, Dongbum Pyo, Gwanghyun Jo, Jeong‐Hoi Koo, Young‐Min Kim, Changhyun Pang, Tae‐Heon Yang   +16 more
wiley   +1 more source

Study on movement of coral fragments and coral sand in the Okinotorishima Island

PROCEEDINGS OF COASTAL ENGINEERING, JSCE, 2008
This study examined movement of coral fragments and coral sand in the Okinotorishima islands in case of high-energy wave. Wave and current around the island were estimated by the modified Boussinesq equation. Movement of coral fragments and coral sand were calculated by using the formula of saltation for gravel and sand, and instantaneous velocity ...
Akiyoshi NAKAYAMA, Kouji WATANABE, Shuichi YMAMOTO   +2 more
openaire   +2 more sources

Habitat connectivity in reef fish communities and marine reserve design in Old Providence-Santa Catalina, Colombia [PDF]

, 2003
On the insular platform of Old Providence/Santa Catalina, Colombia, we compared nearshore lagoonal patch reefs to those on the northern bank distant from the islands to determine the importance of habitat connectivity to fish community structure ...
Appeldoorn, R.S., Friedlander, A., Mitchell-Chui, A., Sladek Nowlis, J., Usseglio, P.   +4 more
core   +2 more sources

Liquid Jetting‐Based Miniature Robotic Navigation in Confined Fluidic Spaces

Advanced Intelligent Systems, EarlyView.
We introduce a new class of liquid‐jetting‐based miniature robots (JetBots) ranging in size from mm‐to‐cm, featuring a unified approach in design, fabrication, and actuation. They demonstrate fast locomotion (30.3 cm/s), rapid steering (648.8°/s), and diverse functions, such as puncturing soft materials and unlimited cargo sampling and delivery, paving
Debasish Roy, Tianlu Wang
wiley   +1 more source

Mapping of Coral Reef Ecosystem in the Natuna Islands Using Alos Imagery [PDF]

, 2011
The coral reef ecology of the Natuna Islands has been studied over 10 years. However, none of those studies produced a coral reef map. Maps of coral reef ecosystem are important for planning, management and monitoring tool.
Prayuda, B. (Bayu), Suyarso, S. (Suyarso), Ulumuddin, Y. I. (Yaya)   +2 more
core  

A Systemic Model for Understanding Business Interactions With Biodiversity and Ecosystems

Business Strategy and the Environment, EarlyView.
ABSTRACT Biodiversity loss and ecosystem degradation represent critical threats to human well‐being and economic resilience, challenging businesses to understand and manage their interdependence with natural systems. This study develops a systemic framework—the BioModel—that elucidates the reciprocal relationship between businesses, biodiversity, and ...
Lino Cinquini, Giacomo Pigatto, Andrea Tenucci   +2 more
wiley   +1 more source

Experimental Analysis of the Changes in Coral Sand Beach Profiles under Regular Wave Conditions

Journal of Marine Science and Engineering
This study utilized 50 laboratory experiments to document the evolution of coral beaches under varying regular wave conditions, including five distinct wave periods and ten wave heights.
Zhen Yao, Jie Chen, Changbo Jiang, Hai Liang, Zhiyuan Wu, Bin Deng, Yuannan Long, Chen Bian   +7 more
doaj   +1 more source