Results 131 to 140 of about 707,832 (374)

On the back reaction of gravitational and particle emission and absorption from straight thick cosmic strings: A toy model

, 1999
The emission and absorption of gravitational waves and massless particles of an infinitely long straight cosmic string with finite thickness are studied.
A. Vilenkin, A. Z. Wang, A. Z. Wang, Anzhong Wang, E. M. De Sa, E. Poisson, E. Shaver, J. A. Stein-Schabes, K. S. Thorne, M. L. Bedran, P. S. Letelier, P. Szekeres, R. A. Battye, S. J. Campbell, T. W. B. Kibble, U.-L. Pen, Yumei Wu   +16 more
core   +1 more source

Capillary‐Driven 3D Open Fluidic Networks for Versatile Continuous Flow Manipulation

Advanced Materials, EarlyView.
The capillary‐driven 3D open fluidic networks (OFNs), composed of connected polyhedral frames, enable precise, programmable, and versatile manipulation of unary, binary, and multiple continuous flows in both spatial and temporal dimensions. OFNs represent a significant leap beyond conventional microfluidics, unlocking new possibilities for selective ...
Shuangmei Wu, Siqi Sun, Jia Ye, Liqiu Wang, Yiyuan Zhang   +4 more
wiley   +1 more source

Decoupling Transport of Salt Ions and Water in Hierarchically Structured Hydrogel for High Salinity Desalination

Advanced Materials, EarlyView.
A hierarchically structured hydrogel evaporator enables controlled decoupling of salt‐ion and water transport pathways for efficient solar desalination in hypersaline environments. Engineered radial and vertical channels direct salt away from the evaporative interface, enhancing water evaporation and ambient energy harvesting via a cold‐surface effect.
Yihan Shi, Xin Stella Zhang, Jiaqi Zhang, Shudi Mao, Casey Onggowarsito, An Feng, Wei Wei, Yuhan Huang, Qiang Fu   +8 more
wiley   +1 more source

Biological and Biologically Inspired Functional Nanostructures: Insights into Structural, Optical, Thermal, and Sensing Applications

Advanced Materials, EarlyView.
Biological and biologically‐inspired functional nanostructures with structural, thermal, optical, and sensing applications are reviewed. The role of nanoscale features in biological materials on performance is described, and their blueprints are used for bio‐inspired nanomaterials, synthesized using advanced techniques (i.e., photolithography, bio ...
Chao Hsuan (Joseph) Sung, Taige Hao, Herry Fang, Andrew Tran Nguyen, Valentina Perricone, Haitao Yu, Wei Huang, Ezra Sarmiento, Adrian Francisco Duran Ornelas, Derek Lublin, Ric Wehling, Sanaz Farajollahi, Atsushi Arakaki, Dhriti Nepal, Nathan Patrick Lord, David Kisailus   +15 more
wiley   +1 more source

Quadruple Helix Inversions of Liquid Crystals Orchestrated by Direct Chirality Transmission of an Intrinsically Chiral Light‐Driven Molecular Machine

Advanced Materials, EarlyView.
A molecular motor with four‐state dynamic chirality is integrated into liquid crystals, enabling quadruple sequential helix inversions and high helical twisting power. Due to high motor efficiency, the supramolecular helicity can be controlled by near‐infrared light via upconversion nanoparticles, resulting in a robust, multistate, photoresponsive soft
Jinyu Sheng, Alexander Ryabchun, Guiying Long, Ben L. Feringa   +3 more
wiley   +1 more source

Naked singularity resolution in cylindrical collapse

, 2006
In this paper, we study the gravitational collapse of null dust in the cylindrically symmetric spacetime. The naked singularity necessarily forms at the symmetry axis.
C. J. S. Clarke, K. S. Thorne, Ken-ichi Nakao, P. Joshi, R. Penrose, S. W. Hawking, T. Nakamura, T. A. Morgan, Yasunari Kurita   +8 more
core   +1 more source

Advancing Mechano‐Bactericidal Surfaces: Mechanisms, Fabrication, and Synergistic Antimicrobial Strategies

Advanced Materials Interfaces, EarlyView.
This review provides a detailed introduction to the fabrication and modulation of nanostructured mechano‐bactericidal surfaces and emphasizes integration of photoactive materials, chemical biocides, stimuli‐responsive self‐cleaning coatings, and electro‐mediated strategies to achieve multifunctional and synergistic antimicrobial effects, providing ...
Yiwen Zhong, Yitong Li, Yang Fu, Zhenfang Zhang, Han Lin, Haiyan Li, Xiao‐Bo Chen, Tianyi Ma, Baohua Jia   +8 more
wiley   +1 more source

Microfluidic Platform with Local Oxygen Sensors Demonstrates That 3D Blood Vessel Networks Exhibit Time‐Dependent Changes in Oxygen Concentrations During Their Formation and Perfusion

Advanced Materials Technologies, EarlyView.
Novel OoC platform with functional vascular networks highlights challenges in oxygenation. This study uses optical oxygen sensors to monitor oxygen during vascular formation, revealing perfusion limitations and highlighting the need for better oxygenation strategies.
Tarek Gensheimer, Stefanie Fuchs, Laura E. de Heus, Kim Vermeul, Torsten Mayr, Andries v.d. Meer   +5 more
wiley   +1 more source

Black Hole Bounces on the Road to Quantum Gravity

Universe, 2018
Quantum resolutions of the space-time singularity at the end of gravitational collapse may provide hints towards the properties of a final theory of Quantum-Gravity.
Daniele Malafarina
doaj   +1 more source

Crossing the singularity of a gravitational wave collision

Physical Review D
9 pages, 6 figures. Added minor remarks and a reference.
Tekin Dereli, Ozay Gurtug, Kıvanç İ. Ünlütürk   +2 more
openaire   +3 more sources