Results 71 to 80 of about 1,470,279 (358)

Structural Exploration of Zirconium Metal–Organic Frameworks Through Linker Desymmetrization and Modulator Compensation

Advanced Materials, EarlyView.
A linker‐desymmetrization‐modulator‐compensation (LDMC) strategy for constructing structurally diverse Zr‐MOFs is reported. This approach reduces linker symmetry to create defects in Zr‐clusters, which can be compensated for by modulator coordination. Using this approach, we synthesized PCN‐1005 and PCN‐1006, featuring unprecedented Zr‐clusters. In PCN‐
Rong‐Ran Liang, Kun‐Yu Wang, Zongsu Han, Kui Tan, Yihao Yang, Zhaoyi Liu, Joshua Rushlow, Jiatong Huo, Hong‐Cai Zhou   +8 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  

Coal extrusion in the plastic state [PDF]

, 1977
Continuous feeding of coal in a compressing screw extruder is described as a method of introducing coal into pressurized systems. The method utilizes the property of many bituminous coals of softening at temperatures from 350 to 425 C.
England, C., Ryason, P. R.
core   +1 more source

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

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

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

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

Influence of coal macerals on carbonization process and sodium storage behavior

Meitan xuebao
Coal has the advantages of low cost and rich aromatic structure, which makes it a high-quality precursor for the preparation of hard carbon anode materials for sodium-ion batteries.
Rundong HE, Hang GUO, Zhongchao SUN, Wencui LI   +3 more
doaj   +1 more source

Assessment of Heavy Metal Contamination of Coal Deposits in Kogi State, Nigeria using Instrumental Neutron Activation Analysis [PDF]

Physics Access
In this study, the concentration of heavy metal contaminants in the coal samples from selected coal mining sites in Okobo, Odagbo, Ofugo and Opoko-Obido, within Kogi State, Nigeria were identified and determined using the Instrumental Neutron Activation ...
Felix O Uloko, John C Agomuo, Matthew N Agu   +2 more
doaj   +1 more source