Results 141 to 150 of about 13,702 (288)

Ionogel Actuators: A Review

open access: yesSmartBot, EarlyView.
Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao   +5 more
wiley   +1 more source

Application Development of High-speed EMUs Resistance Force Reduction and Weight Lightening

open access: yes机车电传动, 2012
For decreasing the train operation resistance force, key technologies of high-speed EMUs aero-dynamical design and lightweight design were studied. By the systematic analysis and optimization of the major factors to influence train operation resistance ...
DING San-san
doaj  

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

open access: yesSmall, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva   +8 more
wiley   +1 more source

Traction System Development for Intercity EMUs

open access: yes机车电传动, 2015
Railway and traction system features of intercity EMUs were analyzed, and the ability requirement of the EMU waspointed out. Traction platform scheme of CRH6 series intercity EMUs was expounded in detail, and the simulation and test of system andparts ...
JIAO Jinghai   +4 more
doaj  

Human factors in space station architecture 2. EVA access facility: A comparative analysis of 4 concepts for on-orbit space suit servicing [PDF]

open access: yes
Four concepts for on-orbit spacesuit donning, doffing, servicing, check-out, egress and ingress are presented. These are: the Space Transportation System (STS) Type (shuttle system enlarged), the Transit Airlock (Shuttle Airlock with suit servicing ...
Bussolari, Steven, Cohen, Marc M.
core   +1 more source

B, N, and O Co‐Doped Nanoporous Activated Carbon With High Surface Area and Hierarchical Porous Structure for Enhanced Li‐Ion Battery and Supercapacitor Performance

open access: yesSmall, EarlyView.
The current research demonstrates co‐activation strategy for the development of heteroatom‐doped hierarchical nanoporous carbon for energy storage application, both in lithium‐ion batteries and supercapacitors. ABSTRACT Nanoporous carbon materials with tunable physicochemical characteristics, such as high surface area, promising conductivity, and ...
P. A. Aleena   +6 more
wiley   +1 more source

Research on the Permanent Magnet Synchronous Motor Drive Systemfor High-speed EMUs

open access: yes机车电传动, 2016
To achieve high energy-efficiency of high-speed EMUs, PMSM traction system for high-speed EMUs was developedbased on CRH380A technical platform. Overall technical parameters, traction characteristic curve design, main circuit of traction system,main ...
Feng Jianghua
doaj  

Ferromagnetic Cobalt Oxide With Structural Distortion and Oxidation State Changes for Hydrogen Sulfide Gas Detection

open access: yesSmall, EarlyView.
High H2S gas sensitivity was improved by electrochemically engineering Co3O4/CoO heterostructures with oxygen vacancies and aligning nanosized particles via magnetic‐field‐assisted deposition. This alignment enhanced gas diffusion and electron transport, reducing base resistance. The resulting sensor exhibited high selectivity and a strong response (Rg/
Shin Joon Kang   +5 more
wiley   +1 more source

Research on Development Trend of Intercity EMUs

open access: yes机车电传动, 2019
This paper analyzed the role of national policies in promoting the development of intercity EMUs, systematically analyzed intercity, line, passenger flow and other factors, and put forward the top-level indicators and future development direction of ...
Yanhui QI, Changlong ZHAO
doaj  

Distribution and Concentration of Canadian Livestock [PDF]

open access: yes
Livestock Production/Industries,
Beaulieu, Martin S.   +2 more
core   +1 more source

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