Results 111 to 120 of about 220,761 (282)

Un semoir de semis direct sous couvert vegetal à traction animale adapté aux conditions du Sénégal [PDF]

, 2018
En Afrique de l'Ouest, la conception et l'adaptation locales de semoirs de semis direct de traction animale faciles d'utilisation et accessibles aux petits producteurs sont un des éléments favorables à l'adoption du semis direct sous couvert végétal ...
Diakhaté, Demba, Fall, Alioune, Havard, Michel, Ralisch, Ricardo, Sarr, I.   +4 more
core  

Active Force Dynamics in Red Blood Cells Under Non‐Invasive Optical Tweezers

Advanced Science, EarlyView.
A non‐invasive method combines low‐power optical tweezers with high‐speed microscopy to simultaneously monitor local membrane forces and displacements in single human red blood cells. This dual‐channel approach reveals a mechano‐dynamic signature that correlates the cell's metabolic state with its mechanical activity. This energetic framework serves as
Arnau Dorn, Clara Luque‐Rioja, Macarena Calero, Diego Herráez‐Aguilar, Francisco Monroy, Niccolò Caselli   +5 more
wiley   +1 more source

Bioinspired Tissue Transparency: Achieving Sclera‐to‐Cornea Transplantation

Advanced Science, EarlyView.
A bioinspired decellularization‐compression‐locking tactic (DCLT) is developed to transform human sclerae into transparent corneal substitutes. These clear, robust, and pro‐regenerative substitutes are capable of repairing complex corneal injuries, including chemical burns, keratoconus, and penetrating wounds, demonstrating their clinical potential to ...
Xiuli Sun, Long Zhao, Zhen Shi, Jingting Wang, Shang Yang, Xia Qi, Hengrui Zhang, Ting Wang, Weiyun Shi   +8 more
wiley   +1 more source

A nonlocal contact formulation for confined granular systems

, 2011
We present a nonlocal formulation of contact mechanics that accounts for the interplay of deformations due to multiple contact forces acting on a single particle.
Cuitino, Alberto, Gonzalez, Marcial
core   +1 more source

Osmotic Tension Asymmetry Drives Electrotactic Migration via PDLIM7‐Polarized Microfilament Coordination in Breast Cancer Cells

Advanced Science, EarlyView.
This study establishes an electric field‐induced directional migration model using fluorescence tension probes to visualize microfilament forces and intracellular osmotic pressure dynamics in the electrotactic migration of breast cancer cells. This model delineates how electromechanical interactions among membrane potential, ion channels, OP, traction ...
Ling Zhu, Zihui Zheng, Wang Li, Chenyi Shou, Ying Zhao, Lijun Zhang, Xiaoli Shi, Yunfeng Hu, Huanhuan Zhao, Huiwen Wu, Jun Guo   +10 more
wiley   +1 more source

REACTIVE POWER COMPENSATION OF THE TRACTION NETWORK OF THE ELECTRIFIED RAILWAY TRANSPORTATION

Problems of the Regional Energetics, 2010
The method of the parametrical analysis of reactive power compensation of traction network depending on load-ing position on stage between two traction substations is offered.
Berzan V.P., Patsyuk V.I., Rimschi V.X., Tirsu M.S., Andros I.V., Sheliagin V.D., Nikulin A.T., Bernackiy A.V.   +7 more
doaj  

Universal Solvent Escape Strategies for Efficient Curing of Hydrogen‐Bond‐Rich 3D Printing Inks

Advanced Science, EarlyView.
This study developed a new 3D printing method for hydrogen‐bonded polymers by combining solvent replacement, nanoparticles, and optimized printing paths. This allows fast, precise scaffold fabrication. The scaffolds can be easily customized and release therapeutic agents slowly through protonation, enabling personalized bone, blood vessel, and nerve ...
Jie Chen, Qing Zhao, Wentao Fu, Weixian Chen, Xiaoqian Zhang, Gaiying Ye, Qinglei Meng, Liyuan Shao, Qian Ma, Lin Zhao, Ying Zhao, Weihua Guo   +11 more
wiley   +1 more source

MODELING OF ELECTROMAGNETIC FIELDS IN DC TRACTION NETWORKS

Modern Technologies and Scientific and Technological Progress
Computer models have been developed that allow determining electromagnetic fields (EMF) in direct current (DC) traction networks based on the results of mode modeling taking into account higher har-monics (HH) in phase coordinates. Calculating EMF strengths allows for the most accurate analysis of the effects of a mixture of fields of different ...
Andrey Kryukov, Quoc Nguyen, Zyuy Chan
openaire   +1 more source

Complex driver movement mathematical model of the tractive rolling stock [PDF]

, 2018
The paper developed a complex mathematical model of the rolling stock movement that takes into account the parallel operation of two real traction asynchronous engines of the first traction railway carriage and one equivalent engine of the second ...
Dmitrienko, Valery, Glavchev, Dmitriy, Kharchenko, Artem, Mezentsev, Nikolai, Noskov, Valentin, Zakovorotniy, Alexander   +5 more
core  

Stress‐Induced Melting Controlled Failure Mechanisms of Methane Hydrate

Advanced Science, EarlyView.
We study methane hydrate via nanoindentation and nuclear magnetic resonance (NMR), finding its regional melting and mechanical properties, challenging existing views on hydrogen‐bonded crystals. Abstract Methane hydrate, a kind of nonstoichiometric crystalline, attracted worldwide attentions as a promising substitute energy. Its Dissociation is thought
Yanlong Li, Yuan Zhou, Zhengcai Zhang, Minhui Qi, Yajuan Zhang, Yujing Jiang, Yunkai Ji, Qingguo Meng, Yongfu Sun, Nengyou Wu   +9 more
wiley   +1 more source