Results 91 to 100 of about 303,129 (281)

Design of Traction Convertor in 160 km/h RailwayEngineering Locomotive

机车电传动, 2013
Traction converter principle, components and structure features of AC-drive 160 km/h railway engineering locomotive developed by CSR were introduced. Modularization and simplification idea was adopted for converter and inverter design, and mature parts ...
FU Cheng-yong
doaj  

B Cells are Activated via a Nanoporous Interface that Stabilizes Microvilli and Engages Mechanosensitive Ion Channels

Advanced Science, EarlyView.
B cells can be activated independently of antigen recognition via mechanical stimulation through nanoporous substrates. Exposure to such substrates induced B cell microvilli extension into the pores, intracellular Ca2+ signaling, phosphorylation of signaling proteins, and CD69 expression.
Nozie D. Aghaizu, Willi Weber, Nadine Strempel, Asya Polat, Enrico Klotzsch   +4 more
wiley   +1 more source

IGBT Traction Convertor of Electric Locomotives for Altiplano

机车电传动, 2012
Main technic parameters, power circuit and it’s converter module characteristics of IGBT traction convertor of electric locomotives for altiplano were introduced. The adaptability design for altiplano was presented such as the working principle of heater,
FAN Rong-hui, QIN Fang-fang, GUO Jun-bo, LI Hua   +3 more
doaj  

Traction Drive Load Simulator

A stationary bench simulating the traction drive of electric transport vehicles in the traction and braking modes is employed in investigation of the drive operation with a hybrid energy storage system. The load simulator of the traction drive is made by
Zaļeskis, Genadijs, Bražis, Viesturs, Latkovskis, Leonards, Grigāns, Linards   +3 more
core  

Differential Tissue‐Coupled Powering for Battery‐Free Injectable Electroceuticals

Advanced Science, EarlyView.
A thread‐like injectable neural stimulator is powered through differential tissue‐coupled powering (DTCP), which harvests RF‐frequency tissue potentials with an elongated receiver while preserving a injectable cross‐section. The system integrates an ASIC, stimulation electrodes, and a portable transmitter, enabling wireless peripheral nerve stimulation,
Han Wu, Sultan Mahmud, Mali Halac, Asif Iftekhar Omi, Domenica Sofia Baez Rodas, Jeremiasz Dados, Chaojun Cheng, Anyu Jiang, Cameron Wallace, Anvi Singh, Erin Patrick, Baibhab Chatterjee, Shriya Srinivasan, Adam Khalifa   +13 more
wiley   +1 more source

Copper‐Doped Prussian Blue Nanozymes With Hyaluronic Acid‐Mediated Targeting Alleviate Oxidative Stress and Regulate Cholesterol Handling for Atherosclerosis Therapy

Advanced Science, EarlyView.
CuPB@HA is a CD44‐associated, plaque‐targeted nanozyme that alleviates oxidative stress, inflammation, and lipid accumulation in macrophages. By reducing CD36‐dependent lipid uptake and promoting ABCA1/ABCG1‐mediated cholesterol handling, it improves macrophage function, preferentially accumulates in atherosclerotic lesions, reduces plaque burden, and ...
Jianliang Ou, Ruihua Ji, Qinglu Zang, Mingkang Wang, Lingling Zhou, Yingliang Wei, Di Yang, Yue Wu, Hongxu Zhu, Jianrong Wu, Xiaojun Cai, Wenxian Du, Junjie Cheng, An Zeng, Yuehua Li   +14 more
wiley   +1 more source

Alternating Shear Force of Respiration Regulates Cell Interactions of Fibroblasts and Macrophages to Promote Soft Tissue Integration of Chest Wall Polyetheretherketone Implants

Advanced Science, EarlyView.
Given that PEEK chest wall implants induce shear force at the soft tissue‐implant interface due to respiratory motion in the early in vivo post‐implantation stage. We confirmed that this mechanical stimulus triggers the PIEZO1/ITGB1/YAP1 signalling axis in L929 and the STAT6/p‐STAT6 pathway in RAW264.7, which in turn mediates adhesion and migration of ...
Rou Huang, Yangfan Huo, Jin Liu, Sida Liu, Minghai Ma, Hao Guo, Yuanquan Zhang, Xing Li, Xiao Liang, Jiawei Xiu, Ying Sun, Lijun Huang, Xiaolong Yan, Weiwei Wu, Lei Wang   +14 more
wiley   +1 more source

AC / DC converter for traction applications

, 2008
This contribution deals with new configuration of the traction converter with medium-frequency transformer intended for ac trolley wire fed locomotives. The main objective of this paper is the control of primary voltage source active rectifiers connected in series and operated on the primary side of medium-frequency transformer.
Blahník, Vojtěch, Peroutka, Zdeněk, Molnár, Jan, Michalík, Jan   +3 more
openaire   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

The Technical Development of Traction Inverter for Urban Rail Transit Vehicle

机车电传动, 2012
First of all, the development of traction inverter and power circuit were introduced simply. Secondly, the simplified traction inverter with completely independent intellectual property rights was analyzed.
翁星方, 邹档兵
doaj