Results 91 to 100 of about 184,188 (296)

Box2Rip: Instance Segmentation of Amorphous Rip Currents via Box-Supervised Learning

IEEE Access
Rip currents are hazardous offshore water flows that significantly threaten swimmers and bathers, pulling them away from the shore at velocities up to $2.4\ ms^{-1}$ .
Juno Choi, Muralidharan Rajendran, Yong-Cheol Suh   +2 more
doaj   +1 more source

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

Advanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim, Jinghui Wang, Yinding Chi, Jingxian Wu, Alicia Ng, Guanda Qiao, Honglin Tan, Miroslaw Janowski, Piotr Walczak, Yajie Liang, Shu Yang   +10 more
wiley   +1 more source

A Deep Learning-Based Pipeline for Detecting Rip Currents from Satellite Imagery

Remote Sensing
Detecting rip currents from satellite imagery offers valuable information for the characterization and assessment of this coastal hazard. While recent advances in deep learning have enabled automatic detection from close-view beach images, the broader ...
Yuli Liu, Yifei Yang, Xiang Li, Fan Yang, Huarong Xie, Wei Wang, Changming Dong   +6 more
doaj   +1 more source

Actuation of Cell Layers in Three Dimensions

Advanced Materials, EarlyView.
ABSTRACT The alignment of fibers and cells in living tissues affect their mechanical properties and functionality. In this context, one can draw an analogy between tissues and nematic liquid crystal elastomers. We explore this analogy by growing fibroblasts on 2D‐patterned substrates and observing the contraction of cell sheets upon detachment from the
Kirsten Endresen, Aniruddh Murali, Birte C. Geerds, Grecia M. Valenzuela Portillo, Maria Bloksgaard, Daniel J.G. Pearce, Francesca Serra   +6 more
wiley   +1 more source

Development and evaluation of a rip current forecasting system for channel-type rip currents on a low-energy headland beach

Geomatics, Natural Hazards & Risk
A 34-day field observation was conducted on a headland beach in South China with a typical channel rip current system. The Delft3D model was applied to reproduce hydrodynamic conditions and extract rip currents, while a Generalized Additive Model (GAM ...
Yan Sun, Lulu Liu, Xiaodong Bian, Daoheng Zhu, Zhiqiang Li   +4 more
doaj   +1 more source

Analysis and Disposal of Typical Breakdown Failure for Resin Impregnated Paper Bushing in the Valve Side of HVDC Converter Transformer

Energies, 2019
This paper presents analysis, diagnosis and disposal with a typical internal breakdown failure of the resin impregnated paper (RIP) valve side bushing in high voltage direct current (HVDC) converter transformer.
Hao Tang, Guangning Wu, Ming Chen, Jiang Deng, Xining Li   +4 more
doaj   +1 more source

Multiple $\Lambda$CDM cosmology with string landscape features and future singularities

, 2012
Multiple $\Lambda$CDM cosmology is studied in a way that is formally a classical analog of the Casimir effect. Such cosmology corresponds to a time-dependent dark fluid model or, alternatively, to its scalar field presentation, and it motivated by the ...
A. N. Makarenko, A.G. Riess, A.V. Astashenok, A.V. Astashenok, D. Rapetti, E. Elizalde, E. Elizalde, E. Elizalde, E. Elizalde, E. Elizalde, E. Komatsu, G. Cognola, G. Cognola, H. Stefancic, I. Brevik, J.D. Barrow, K. Bamba, K. Bamba, K. Nakamura, L.N. Granda, M. Bastero-Gil, M. Bordag, M. Hicken, M. Ivanov, M. Kowalski, M.-H. Belkacemi, M.P. Dabrowski, M.R. Douglas, P. Xi, P.H. Frampton, P.H. Frampton, P.H. Frampton, P.H. Frampton, R. Amanullah, R.R. Caldwell, R.R. Caldwell, S. Capozziello, S. D. Odintsov, S. Nojiri, S. Nojiri, S. Nojiri, S. Nojiri, S. Nojiri, S. Nojiri, S. Perlmutter, T. Banks, V. Sahni, V. Sahni, V. V. Obukhov, W.J. Percival, Y.-F. Cai, Z.-G. Liu   +51 more
core   +1 more source

Recent Advances in Electrospun Nanofibers for Triboelectric Nanogenerators: Performance Enhancement Strategies and Emerging Applications

Advanced Materials, EarlyView.
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi, Jee Hwan Ahn, Duy Linh Vu, Kyoung Kwan Ahn   +3 more
wiley   +1 more source

Assessing Rip Current Occurrences at Featureless Beaches Using Boussinesq Modeling

Journal of Marine Science and Engineering
Rip currents at featureless beaches (i.e., beaches lacking sandbars or channels) are often hydrodynamically controlled, exhibiting intermittent and unpredictable behaviors that pose significant risks to recreational beach users.
Yuli Liu, Changming Dong, Xiang Li, Fan Yang   +3 more
doaj   +1 more source

AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing

Advanced Materials, EarlyView.
This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee, Moon‐Jo Kim, DongEung Kim, Chan Ho Moon, Seojoon Bang, Hyeong Seok Kang, Ju Yeong Gwon, Jong Hwa Seo, Junhyub Jeon, Junhyuk Son, Munwon Lim, Minho Kang, Dong Yun Lee, Donghyun Lim, Jung‐Hoon Park, Gi Doo Cha, Soo‐Hong Lee, Tae‐Sik Jang, Kisuk Yang, Yunho Jeong, Youngho Eom, Hyun‐Do Jung   +21 more
wiley   +1 more source