Results 91 to 100 of about 25,335,029 (250)

Research on influencing factors of arc grounding over-voltage in mine power supply system

open access: yes, 2017
In order to comprehensively study influence factors such as grounding resistance, line resistance, fault location, grounding capacitance, interphase capacitance and arc ignition time on arc grounding over-voltage in mine power supply system, typical mine
LUO Chao   +6 more
core   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Numerical analysis of buried mine explosions with emphasis on effect of soil properties on loading [PDF]

open access: yes, 2006
During armed conflicts or peace-support operations, most casualties are attributed to vehicle-landmine accidents and thus, mine protection fea-tures are a prerequisite for vehicles serving in these areas.
Fiserova, D.
core   +2 more sources

The ubiquitin system in normal and infected germinal center B cells

open access: yesFEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis   +2 more
wiley   +1 more source

Case Analysis of Especially Serious Gas Explosion Disaster Caused by Electric Fire Source

open access: yesGong-kuang zidonghua, 2012
The paper analyzed causes of '9?8' especially serious gas explosion disaster at No.4 Coal Mine of Xinhua District which led to death of 76 people: amount of high-concentration gas accumulated in 201 tunnelling roadway because of roof caving which caused ...
SUN Ji-ping
doaj  

Renovation and Optimization of Operation Mode of Dual-circuit Power Supply System in Coal Mine

open access: yes, 2011
For the problem that most dual-circuit power supply systems in coal mine underground could not accord with requirements of version 2009 of Coal Mine Safety Regulations, the paper presented a way of renovation and optimization of operation mode of dual ...
LI Fu
core  

Power Company Fuel Supply - Problems And Solutions

open access: yes, 1982
A power company in the business of supplying electricity to its customers faces numerous problems associated with power production. One of its major problems is to supply its power plants with fuel and to use that fuel as economically as possible.
Smith, R. A., Morgan, J. Derald
core   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Design of mine adaptive power system with wide voltage input

open access: yesGong-kuang zidonghua, 2013
For problem that adapted voltage fluctuation range of existing mine-used power is narrow and its use is inconvenience, the paper proposed a design scheme of adaptive power system with AC80-830 V wide voltage input based on full-bridge phase-shift ...
YOU Qing-shan, MENG Xiao-hong, RAN Xia
doaj  

Research on formation process of arc grounding over-voltage in mine power supply system

open access: yes, 2018
For comprehensive research on formation process of arc grounding over-voltage in mine power supply system, a mine power supply system model and an intermittent arc grounding model were built by use of real time digital simulator, and over-voltages in ...
LIU Jucai   +3 more
core   +1 more source

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