Results 81 to 90 of about 51,784 (297)

Assessment of readiness of auxiliary mine rescue teams in coal mines

Gornye nauki i tekhnologii = Mining Science and Technology (Russia)
The efficiency of mine rescue operations largely depends on how quickly efforts to localize and mitigate an accident are initiated. Given the remoteness of some mining enterprises, a decision was made to form auxiliary mine rescue teams composed of miners. However, there is ongoing debate regarding the effectiveness of the rescue operations carried out
openaire   +2 more sources

Research of power supply of coal mine rescue robot

Gong-kuang zidonghua, 2013
According to special requirement of power system of rescue robot, three types of power supply were compared, which were lithium iron phosphate batteries, super capacitor and lithium iron phosphate batteries parallel connected super capacitor. It was found that the lithium iron phosphate battery had good properties as the robot's power.
LU Huai-min, FANG Hai-feng, CAI Li-hua, LIU Zhao   +3 more
openaire   +1 more source

Challenges and enablers in fluidization technology

AIChE Journal, EarlyView.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source

Research of control architecture of mine-used rescue robot

Gong-kuang zidonghua, 2013
The paper discussed working environment of mine-used rescue robot and performance requirements of its control architecture, introduced control architectures of existing mine-used rescue robot including closed control architecture based on industrial ...
LIU Jian, ZHU Hua
doaj  

Design of coal mine emergency rescue auxiliary decision system based on emergency plan

Gong-kuang zidonghua
In the coal mine emergency rescue auxiliary decision system, there are problems such as insufficient application of emergency plans, low application efficiency, and poor execution of rescue plans generated by the system.
GAO Hongbo
doaj   +1 more source

STUDYING REGULARITIES OF AIR MOVEMENT THROUGH A FILTERING HALF-MASK [PDF]

, 2018
Objective is to study the available approaches to calculate pressure difference of filtering respirators, to determine theoretical dependences of its change in terms of different filtering rate according to the breathing process with the ...
CHEBERIACHKO, Sergiy, TYKHONENKO, Valeriia, YAVORSKYI, Andrii, YAVORS’KA, Olena, Чеберячко, С. І., Чеберячко, Сергей Иванович, Чеберячко, Сергій Іванович, Яворская, Е. А., Яворская, Елена Александровна, Яворский, А. В., Яворский, Андрей Васильевич, Яворська, О. О., Яворська, Олена Олександрівна, Яворський, А. В., Яворський, Андрій Васильович   +14 more
core  

Perimeter‐intensified inverse Zr‐Co oxygen carrier for biomass chemical‐looping gasification with high CO selectivity

AIChE Journal, EarlyView.
Abstract Chemical‐looping gasification (CLG) offers a promising route for renewable biomass valorization, yet conventional oxygen carrier regeneration with O₂/H₂O is energy‐intensive and often produces low‐quality syngas. Here, we develop an inverse ZrO2/Co3O4 oxygen carrier that enables selective biochar oxidation and efficient lattice‐oxygen transfer
Junling Gao, Haifeng Qi, Kun Lei, Tingwei Wang, Yijie Yang, Hongwei Li, Rongjun Zhang, Yu Wu, Canran Huang, Zhao Sun   +9 more
wiley   +1 more source

Considering and development trend of vertical rescue technology for mining drill hole

Meikuang Anquan
Mine borehole vertical rescue technology is a fast and efficient means of emergency rescue in mines, which plays a key role in previous mine accident rescue.
Mingguo XIAO, Biao ZHANG, Zhongxiang LIN, Zebin ZHU, Bo ZHOU, Xuezhao ZHENG, Yuan HUANG   +6 more
doaj   +1 more source

Chapter 6 - Extractive Industries, pp. 141-163 [PDF]

, 1944
The Catherwood Library and ILR School at Cornell are pleased to again make available an extremely important index of major labor union publications, long out of print. It is Lloyd G. Reynolds and Charles C.
Killingsworth, Charles C, Reynolds, Lloyd G   +1 more
core   +1 more source

Bayesian Optimization Guiding the Experimental Mapping of the Pareto Front of Mechanical and Flame‐Retardant Properties in Polyamide Nanocomposites

Advanced Intelligent Discovery, EarlyView.
Bayesian optimization enabled the design of PA56 system with just 8 wt% additives, achieving limiting oxygen index 30.5%, tensile strength 80.9 MPa, and UL‐94 V‐0 rating. Without prior knowledge, the algorithm uncovered synergistic effects between aluminum diethyl‐phosphinate and nanoclay.
Burcu Ozdemir, Miguel Hernández‐del‐Valle, Christina Schenk, De‐Yi Wang, Maciej Haranczyk   +4 more
wiley   +1 more source