Results 91 to 100 of about 1,643,449 (356)

A global platform for accelerating coal efficiency (PACE) [PDF]

The World Coal Association released this concept paper in December 2014 on establishing a Platform for Accelerating Coal Efficiency (PACE). The vision of PACE would be that for countries choosing to use coal, the most efficient power plant ...
World Coal Association
core  

High‐Performance Zero‐Gap Glycerol‐Fed Electrolyzer for C3 Chemicals and Hydrogen Production

Advanced Materials, EarlyView.
This work presents a dynamic, self‐regulating operation strategy that enables selective glycerol electrooxidation in the OER‐free regime, co‐producing C3 chemicals and hydrogen at cell voltages below 1.25 V. Voltage‐ and temperature‐resolved analyses define optimal operating conditions, achieving a sustained current density of 500 mA cm−2 at ∼1.21 V ...
Shayan Angizi, Inder Sangha, Mahsa Khoshnam, Mahdis Nankali, Ashkan Irannezhad, Amirhossein Rakhsha, Zahra Teimouri, Amir Foroozan, Mengnan Zhu, Navid Noor, Reza Eslami, Drew Higgins   +11 more
wiley   +1 more source

Geological and Geochemical Features of Alborz Basin Coal Deposits, Iran [PDF]

Journal of Sciences, Islamic Republic of Iran, 2012
The Alborz coal basin is located in northern part of Iran. The coal deposits of Shahrood in eastern Alborz, Zirab in central Alborz and Abyek in western Alborz were studied as typical coalfields of the basin.
M. Yazdi
doaj  

Coal-shale interface detection system [PDF]

, 1979
A coal-shale interface detection system for use with coal cutting equipment consists of a reciprocating hammer on which an accelerometer is mounted to measure the impact of the hammer as it penetrates the ceiling or floor surface of a mine.
Campbell, R. A., Hudgins, J. L., Morris, P. W., Reid, H., Jr., Zimmerman, J. E.   +4 more
core   +1 more source

Direct Ink Writing 3D Printing of Recyclable and Thermally Stable Vitrimers

Advanced Materials Technologies, EarlyView.
Vitrimers hold great promise in additive manufacturing as defect‐insensitive, repairable, and recyclable feedstocks. A thin‐film additively manufactured process is developed for a high‐performance vitrimer that is difficult to process traditionally.
Louis O. Vaught, Ronald Sellers, Andreas A. Polycarpou   +2 more
wiley   +1 more source

ASPECTS REGARDING THE TECHNICAL EXPERTISE OF THE ROTATIONAL MECHANISM OF COAL MINING MACHINE - Part I [PDF]

Fiabilitate şi Durabilitate, 2019
In this paper we presents technical conditions for the rotational mechanism of the coal mining machine after we made technical expertise. The rehabilitation at the rotational mechanism will be subjected, it will be done by performing the intervention ...
Marius Liviu CÎRŢÎNĂ, Constanța RĂDULESCU, Alin STĂNCIOIU   +2 more
doaj  

Advanced Branched Carbon Nanotube/Carbon Black Hybrid Technologies: Cost‐Effective Fabrication of High‐Performance Conductive Polyamide 6 Filaments for Next‐Generation Smart Textile Applications

Advanced Materials Technologies, EarlyView.
This study demonstrates a cost‐effective hybrid nanofiller approach for developing conductive polyamide 6 filaments via melt spinning. Branched carbon nanotubes combined with carbon black create synergistic networks where spherical CB particles bridge aligned CNTs, maintaining electrical pathways during fiber drawing.
Müslüm Kaplan, Norbert Smolka, Ines Kuehnert, Beate Krause   +3 more
wiley   +1 more source

Regional disparities in health and employment outcomes of China’s transition to a low-carbon electricity system

Environmental Research: Energy
Understanding the costs and the spatial distribution of health and employment outcomes of low-carbon electricity pathways is critical to enable an equitable transition.
Haozhe Yang, Qian Luo, Gang He, Jiang Lin, Jeremiah Johnson, Fernando Garcia-Menendez, Olivier Deschenes, Ana Mileva, Ranjit Deshmukh   +8 more
doaj   +1 more source

Selection of the optimal feeding variant for hammer crushers in order to achieve the designed parameters of crushed coal [PDF]

Mining and Metallurgy Engineering Bor
The process of coal crushing for the Kostolac "B" Thermal Power Plant is carried out at the "Drmno" crushing plant using two hammer crushers of Czechoslovak production (PSP Engineering a.s.
Stojičić Ivan, Gomilanović Miljan, Kržanović Daniel, Milanović Stefan, Stanković Tanja   +4 more
doaj   +1 more source

Lessons from Germany’s hard coal mining phase-out: policies and transition from 1950 to 2018

Climate Policy, 2019
German hard coal production ended in 2018, following the termination of subsidies. This paper looks at 60 years of continuous decline of an industry that employed more than 600,000 people, through a case study comparing Germany’s two largest hard coal ...
P. oei, Hanna Brauers, Philipp Herpich
semanticscholar   +1 more source