Results 141 to 150 of about 125,163 (314)

The role of adhesion in contact mechanics

, 2018
Adhesive [e.g. van der Waals] forces were not generally taken into account in contact mechanics until 1971, when Johnson, Kendall and Roberts (JKR) generalized Hertz' solution for an elastic sphere using an energetic argument which we now recognize to be
Barber, JR, Ciavarella, M., Joe, J., Papangelo, A.   +3 more
core  

Quantitative Super‐Resolution Imaging of Molecular Tension

Advanced Science, EarlyView.
Quantitative tension PAINT (qtPAINT) is a new method to quantify molecular tension at super‐resolution by exploiting force‐dependent DNA oligonucleotide dissociation kinetics. Combining hairpin tension probes and molecular‐beacon imagers, qtPAINT achieves 9–30 pN continuous force quantification range with 30–120 nm spatial and minute‐scale temporal ...
Seong Ho Kim, Adam B. Yasunaga, Hongyuan Zhang, Kevin D. Whitley, Isaac T. S. Li   +4 more
wiley   +1 more source

Design and Parameter Analysis of New Type of Motor Driven Wheel Traction Device

Jixie chuandong, 2015
A new type of motor drive wheel traction device is proposed,the structure and principle of the traction device is elaborated.The parameter calculation model is established to calculate the relevant parameters and analyze the obstacle-surmounting ability ...
Zhang Yong, Gao Deli, Zheng Yanchao, Zuo Mingde, Liang Qimin, Hui Shuyi   +5 more
doaj  

Isolation Techniques of Micro/Nano‐Scaled Species for Biomedical Applications

Advanced Science, EarlyView.
Separating micro/nano‐scale bioparticles from samples is essential for disease diagnosis, prevention, and monitoring. Therefore, a comprehensive overview of the latest advanced separation technologies is provided, and characteristics and limitations based on six key performance parameters, including purity, recovery rate, throughput, resolution, size ...
Qing Lu, Zhinan Zhang, Xianting Ding
wiley   +1 more source

Development of Asynchronous Traction Motor for General Narrow Gauge Diesel Locomotive

机车电传动, 2019
Aiming at the structure characteristics and performance of asynchronous traction motor for narrow track diesel locomotive, analysis and calculation were carried out in details, and the general technical index and structure parameters were determined. The
Lianfeng LI, Yuantong HUANG, Dingkang YE, Changfu PENG   +3 more
doaj  

Piezoelectric Biomaterials for Bone Regeneration: Roadmap from Dipole to Osteogenesis

Advanced Science, EarlyView.
Piezoelectric biomaterials convert mechanical forces into electrical signals, offering novel strategies to restore and modulate bone microenvironments for tissue engineering. This review examines molecular dipole origins, spatial arrangements, and pseudo‐piezoelectric mechanisms and highlights dipole‐engineering techniques for osteogenesis regulation ...
Xiyao Ni, Yufei Cui, Mojtaba Salehi, Mui Ling Sharon Nai, Kun Zhou, Cian Vyas, Boyang Huang, Paulo Bartolo   +7 more
wiley   +1 more source

Enhancing Specificity, Precision, Accessibility, Flexibility, and Safety to Overcome Traditional CRISPR/Cas Editing Challenges and Shape Future Innovations

Advanced Science, EarlyView.
CRISPR/Cas9, while transformative, faces challenges in specificity, precision, delivery, accessibility, flexibility, and safety. This review addresses these limitations by highlighting strategies to reduce off‐target effects, exploring HDR‐based and alternative editing approaches, and evaluating advanced delivery mechanisms.
Muna Alariqi, Mohamed Ramadan, Lu Yu, Fengjiao Hui, Amjad Hussain, Xiaofeng Zhou, Yu Yu, Xianlong Zhang, Shuangxia Jin   +8 more
wiley   +1 more source

A Cross‐Linked Flexible Metaferroelectrolyte Regulated by 2D/2D Perovskite Heterostructures for High‐Performance Compact Solid‐State Sodium Batteries

Advanced Science, EarlyView.
The flexible solid‐state metaferroelectrolyte is fabricated through an in situ cross‐linking and spontaneous bridging method by introducing strongly ferroelectric‐coupled intrinsic ion conducting Na2.99Ba0.005OCl/CNNO‐ nanosheets into PVDF‐HFP matrix. The unique 3D ferroelectric‐coupled network and Na2.99Ba0.005OCl/CNNO‐‐induced ferroelectric PVDF‐HFP ...
Yanan Huang, Zhuo Yang, Weicheng Zhou, Liequan Liu, Chuanbao Tu, Mingyang Tang, Haijiao Xie, Yu Lu, Xu Yan, Zhihao Ding, Xiaolong Li, Tiannan Yang, Alexander S. Sigov, Wei Huang, Lijun Gao, Cheng Huang   +15 more
wiley   +1 more source

Study on Application and Optimizing Scheme of Permanent Magnet Synchronous Motor Traction System in Chengdu Metro

机车电传动, 2019
The energy-saving demand of urban rail transit industry and the development of Chengdu metro was introduced. Taking Chengdu metro line 10 as an example, the optimal design scheme of the application of permanent magnet synchronous motor traction system in
Lin TANG
doaj  

Metabolic Stress‐Induced Choline Kinase α (CHKA) Activation in Endothelial Subpopulation Contributes to Diabetes‐Associated Microvascular Dysfunction

Advanced Science, EarlyView.
This study uncovers CHKA as a pivotal driver of vascular dysfunction in diabetic retinopathy and highlights its role in endothelial dysfunction through NAD⁺‐SIRT1‐Notch signaling. Single‐cell and functional analyses, combined with clinical and genetic validation, suggest CHKA as a promising therapeutic target for the prevention and treatment of ...
Ling Ren, Linyu Zhang, Yun Bai, Chang Huang, Xiaosa Li, Fanfei Ma, Wan Mu, Mudi Yao, Chang Jiang, Xiangjun Chen, Qin Jiang, Biao Yan   +11 more
wiley   +1 more source