Results 111 to 120 of about 272,542 (311)

Powering the Future: A Cobalt‐Based Catalyst for Longer‐Lasting Zinc–Air Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A novel N‐doped graphitic shell‐encapsulated Co catalyst reveals superior bifunctional ORR/OER activity in alkaline media, empowering outstanding liquid and quasi‐solid‐state ZAB activity. The system delivers long‐term durability, a peak power density of 127 mW cm−2 and successfully powers an LED and a mini fan.
Manami Banerjee   +10 more
wiley   +1 more source

Simulation of Quadruple-arc Gear Form Grinding Machining based on VERICUT

open access: yesJixie chuandong, 2016
According to the principle of form grinding,the VERICUT software is used to simulate the machining of quadruple- arc tooth profile gear. Firstly,according to the NC gear grinding machine,the machine tool model,gear blank model is set up and on the basis ...
Ren Zhongyi, Zhao Yi, Duan Jianzhong
doaj  

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel   +4 more
wiley   +1 more source

Effect of Electroplastic-Assisted Grinding on Surface Quality of Ductile Iron

open access: yesLubricants
Ductile iron is a heterogeneous material. The presence of spherical graphite and a hard and brittle structure makes the surface of the workpiece easily form pits and crack defects under harsh grinding conditions, which seriously affects the service life ...
Shuo Feng   +9 more
doaj   +1 more source

Increase of accuracy of geometric forms of surfaces ground by a grinding wheel of various grain sizes

open access: yesAdvances in Mechanical Engineering, 2017
The article presents comparative experiments by the examination of conditions of the increase of the accuracy of geometric forms of surfaces ground by the grinding wheel with various grain sizes of a new construction and a standard grinding wheel.
Huseynov Hassan   +3 more
doaj   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner   +9 more
wiley   +1 more source

齿轮磨齿机概述

open access: yesJixie chuandong, 2014
The styles and the characteristics of gear grinding machine,the grinding wheel dresser of form gear grinding,the tooth circumferential precise indexing of gear grinding,the automatic tool preset and the on- machine detection system of gear grinding ...
王伟功, 王长路, 张和平
doaj  

Analysis and Calculation of Mechanical Characteristics of Vertical Traction Grinding Device

open access: yes机车电传动, 2021
The rail grinding vehicle transmits the power to the grinding device at the bottom of the vehicle body through the traction mechanism, so that it can run and grind along the rail.
Dan LUO   +3 more
doaj  

Fundamental study on form grinding. (2nd report). Grinding process of V-profile groove.

open access: yesJournal of the Japan Society for Precision Engineering, 1988
Grinding process of V-profile groove with a formed wheel is experimentally investigated, analyzing initial profile of formed wheel, wheel wear, stock removal, number of cutting edges on working wheel surface, bonding strength of a cutting edge and so on.
Toshikatsu NAKAJIMA   +3 more
openaire   +2 more sources

Viscoelasticity‐Induced Controllable Periodic Meso‐Textures of Liquid Crystal Polymers in Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou   +17 more
wiley   +1 more source

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