Results 221 to 230 of about 294,743 (244)

Configuration Optimization Design of Magnetic Circuit for Large Magnetostrictive Devices Based on TbDyFe Alloy

Rare Metals, EarlyView.
ABSTRACT Reliable operation of high‐performance magnetostrictive devices, composed of the giant magnetostrictive material (GMM), that is, the TbDyFe alloy, critically depends on an optimally tailored bias magnetic field. Sufficient intensity and uniformity are essential to induce the ideal initial strain in the GMM, enabling peak reciprocating output ...
Jinan Yu, Yusheng Wen, Ziwei Feng, Yongbo Guo, Zhihao Zhang, Yu Qiao, Yangkun He, Shizhong An, Dazhuang Kang, Tianli Zhang, Jinghua Liu, Chengbao Jiang, J. M. D. Coey   +12 more
wiley   +1 more source

Why Autonomous Vehicles Are Not Ready Yet: A Multi‐Disciplinary Review of Problems, Attempted Solutions, and Future Directions

Journal of Field Robotics, EarlyView.
ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong, Massimiliano Cappuccio, Fady Alnajjar, Luqman Ali, Hamad Al Jassmi, Essam Debie, Milad Ghasrikhouzani, Alessandro Lanteri, Tate McGregor, Oleksandra Molloy, Alice Plebe, Michael Regan, Eduardo Sandoval, Dongmo Zhang   +13 more
wiley   +1 more source

Associating Local‐Scale Physical Habitat Assemblages With Reach‐Scale Stream Hydrogeomorphological Types in Mountain Headwater Catchments

River Research and Applications, EarlyView.
ABSTRACT Building an understanding of river ecosystems often involves integrating information from different locations, spatial scales and points in time. Geomorphologists and ecologists have long considered ways to explore river ecosystems at different, hierarchical, spatial scales so that features observed locally can be linked to the character of ...
Edward J. Cox, Angela M. Gurnell, Michael J. Bowes, Michael Bruen, Sinead Hogan, John J. O'Sullivan, Mary Kelly‐Quinn   +6 more
wiley   +1 more source

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

River Research and Applications, EarlyView.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert, Theresa Himmelsbach, Florian Pöppl, Lucas Dammert, Martin Pfennigbauer, Gottfried Mandlburger   +5 more
wiley   +1 more source

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The destruction of the Kakhovka dam and its consequences

Water international, 2023
The Kakhovka hydropower plant on the Dnipro River in Ukraine, its spillway dam and adjoining structures were completely destroyed in the early morning of 6 June 2023 in the course of the Russia–Ukraine War.
V. Vyshnevskyi, S. Shevchuk, V. Komorin, Y. Oleynik, P. Gleick   +4 more
semanticscholar   +1 more source

Nitrogen cycling processes and the role of multi-trophic microbiota in dam-induced river-reservoir systems.

Water Research, 2021
The nitrogen (N) cycle is one of the most important nutrient cycles in river systems, and it plays an important role in maintaining biogeochemical balance and global climate stability.
Nan Yang, Chi Zhang, Linqiong Wang, Yi Li, Wenlong Zhang, Lihua Niu, Huanjun Zhang, Longfei Wang   +7 more
semanticscholar   +1 more source

A new dam structural response estimation paradigm powered by deep learning and transfer learning techniques

Structural Health Monitoring, 2021
With the rapid development of information and communication techniques, dam structural health assessment based on data collected from structural health monitoring systems has become a trend.
Yangtao Li, Tengfei Bao, Zhixin Gao, Xiaosong Shu, Kang Zhang, Lunchen Xie, Zhentao Zhang   +6 more
semanticscholar   +1 more source

Simulation of seepage flow through embankment dam by using a novel extended Kalman filter based neural network paradigm: Case study of Fontaine Gazelles Dam, Algeria

, 2021
Seepage flow through embankment dam is one of the most influential factors in failures of them. Thus, the monitoring and accurate measuring of seepage are crucial for the safety and construction cost of an embankment dam. In this study, an efficient data-
Issam Rehamnia, Bachir Benlaoukli, M. Jamei, M. Karbasi, Anurag Malik   +4 more
semanticscholar   +1 more source

Effects of dam construction on biodiversity: A review

Journal of Cleaner Production, 2019
Wetlands (rivers, lakes, bogs, etc.), the biodiversity hotspots, provide habitats for biology on Earth and play an important role in biodiversity protection around the world. However, they are damaged by dam construction all over the world.
Haipeng Wu, Chen Jin, X. Jijun, G. Zeng, L. Sang, Liu Qiang, Z. Yin, J. Dai, Dacong Yin, Jie Liang, S. Ye   +10 more
semanticscholar   +1 more source

Why coal ash and tailings dam disasters occur

Science, 2019
Knowledge gaps and management shortcomings contribute to catastrophic dam failures On 25 January 2019, the structure damming a pond filled with iron ore mining wastes (tailings) burst at Brumadinho, Brazil (1), causing a massive mudslide that killed at ...
Carlos Santamarina, L. Torres-Cruz, R. Bachus   +2 more
semanticscholar   +1 more source