Results 21 to 30 of about 37,149 (268)
A Parameterization Scheme for Lossy Transmission Line Macromodels with Application to High Speed Interconnects in Mobile Devices [PDF]
, 2007 We introduce a novel parameterization scheme based on the generalized method of characteristics (MoC) formacromodels of transmission-line structures having a cross section depending on several free geometrical and material parameters.
Acquadro, S. +5 more
core +1 more source
Development of data acquisition instrument for coal and gas outburst based on wireless communication
Meikuang Anquan, 2022 Aiming at the problem of long measuring time and low efficiency of K1 value measuring instrument for drilling cuttings gas desorption index used in coal mine at present, based on the related requirements of prevention and control of coal and gas ...
WANG Yanbin
doaj +1 more source
Transient analysis of surge immunity test for intrinsically safe sensor
Gong-kuang zidonghua, 2018 For problem that it was difficult to achieve evaluation grade A due to a long time reverse gap in DC power port voltage of intrinsically safe sensor in positive surge immunity test, taking a typical mine-used intrinsically safe methane sensor as research
ZHANG Ziliang
doaj +1 more source
Gong-kuang zidonghua, 2017 In view of poor real-time performance and complex wiring existed in traditional operating condition monitoring of coal mine mechanical and electrical equipment, a mine-used intrinsically safe equipment monitoring substation based on wireless ...
DU Yan +7 more
doaj +1 more source
Audio and Video System for Mine Search and Rescue Robot Based on Linux
Meikuang Anquan, 2020 The audio and video system of mine search and rescue robot is designed based on the Linux. The system selects a 1/2.7 inch CMOS USB binocular camera, BH1750 light intensity acquisition and 850 nm infrared compensation light as the video acquisition ...
LI Wenfeng, BAI Juntao
doaj +1 more source
Bessel beam illumination reduces random and systematic errors in quantitative functional studies using light-sheet microscopy [PDF]
, 2018 Light-sheet microscopy (LSM), in combination with intrinsically transparent zebrafish larvae, is a choice method to observe brain function with high frame rates at cellular resolution.
Alterini, Tommaso +8 more
core +15 more sources
Coal mine low power laser methane detection and alarm instrument [PDF]
, 2019 At present, the portable carrier catalytic methane detection and alarm instrument for coal mine generally has many problems, such as high power consumption, short standby time, low detection accuracy, few parameters and single function, which can not ...
Grattan, K. T. V. +7 more
core +1 more source
Several Methods of Reducing Discharge Energy for Intrinsic Safety Power Supply
Meikuang Anquan, 2020 In order to reduce the discharge spark energy of the intrinsic safety power supply, several measures are proposed in this paper. When the over-current protection occurs, DC-DC or AC-DC module should be turned off as quickly as possible, and the ...
DONG Jianguo, LI Yanmin, ZHOU Xingdong, ZHANG Lei
doaj +1 more source
Scientific Reports, 2023 We have developed a radioluminescence-based survey meter for use in industries in which there is involvement in naturally occurring radioactive material (NORM), also in support of those needing to detect other weak emitters of radiation.
H. T. Zubair +13 more
doaj +1 more source
Distance measurement between bus equipment based on RS485 data frame timing
Gong-kuang zidonghua, 2021 There are a large number of online equipment working in underground coal mines that do not have positioning function and the equipment installed with wireless positioning are susceptible to electromagnetic interference, resulting in low positioning ...
BAI Sizhong1，2
doaj +1 more source