Results 51 to 60 of about 189,496 (176)

Node Design and Networking Scheme of Mine Environmental Detection System Based on ZigBee and Data Radio Station

open access: yesGong-kuang zidonghua, 2010
In view of the problem that wireless sensor network ca't make remote transmission because of complex underground situation,the paper proposed a design scheme of mine environmental detection system based on ZigBee wireless sensor network and data radio ...
JIANG Jie, CHEN Shu-shu
doaj  

Research of Action Range and Mechanism of Coal-gun Phenomenon in Drifting Process

open access: yesGong-kuang zidonghua, 2010
In order to explain action range and mechanism of coal-gun phenomenon,numerical simulation research was maken for deforming and destroyed process and acoustic emission phenomenon of surrounding rock in drifting process of a coal mine by use of RFPA2D ...
WANG Jun-hui~, LI Bao-fu~, ZHANG Tao~
doaj  

Rationale of ore transportation using cargo cableways at the Jeruy mine [PDF]

open access: yesREM: International Engineering Journal
An analysis of existing flow technologies for use of cargo cableways to transport ore in mountainous deposits was carried out. Technical and economic calculations of the main indicators of ore transportation technologies for the use of a cargo cableway ...
Kushbakali Tazhibaevich Tazhibaev   +2 more
doaj   +1 more source

Design of an On-line Detecting System for Dielectric Loss of Mine-used High-voltage Cable

open access: yesGong-kuang zidonghua, 2010
In order to solve problems of consuming too much time and resource and unstable precision caused by environment of existing off-line detecting method for dielectric loss of high-voltage cable of coal mine underground,a micro-current sensor was designed ...
DING Wei-min   +2 more
doaj  

Frame Repacked Method of Wireless Transmission of Ethernet Audio and Video Streaming

open access: yesGong-kuang zidonghua, 2010
In view of the serious problem of packet loss existed in transmitting audio and video streaming by use of wireless sensor network technology in coal mine underground,an Ethernet data unpacked/packed method based on FPGA was put forward,namely,an Ethernet
LIU Yu-ping
doaj  

What’s yours is mine and what’s mine is mine?

open access: yesOñati Socio-Legal Series, 2018
Intellectual property and cultural policy are essential to the practice of cultural rights, however, in both legal frameworks, indigenous peoples have often found that the state has little consideration for their voices and their world views. In contrast, though no more representative of indigenous perspectives, the social sciences, while engaging with
Lucero Ibarra Rojas   +2 more
openaire   +1 more source

Design of mine environmental data acquisition equipment based on wireless ad hoc networks

open access: yesGong-kuang zidonghua, 2013
For status that most coal mine safety monitoring and control systems adopt fixed and wired sensor network which has blind spots, the paper proposed a design scheme of mine environmental data acquisition equipment based on wireless ad hoc networks, and ...
XIE Jia-xing   +5 more
doaj  

Investigation of micro-seismic phenomena of anthropogenic origin

open access: yesГеофизический журнал, 2015
The results of measurements of parameters of macroseismic effects in the mine “Artem-1”  “ArselorMittal Krivoy Rog” at a depth 1005m that accompany changes in the state of the rock mass have been considered.
V. Zdeshchyts   +4 more
doaj   +1 more source

TENDENCY OF APPLYING LHD MEHANIZATION IN MINING WORKINGS

open access: yesRudarsko-geološko-naftni Zbornik, 1995
Changed working conditions in deep mining workings (underground rooms of a mine) havc lead, by application of diesel driven mechanization to the tendency of introducing the eleetric LHD machines in mines.
Vladimir Rendulić, Siniša Dunda
doaj  

On the features of the formation of potassium salts deposits of Precarpathia

open access: yesМінеральні ресурси України
The Precarpathian salt deposits are strongly dislocated, and in this, in our opinion, it is necessary to look for the reason for brecciation. The main phase of rock transformation is obviously connected to the stage of tectonic activation.
Z. Z. Khevpa, K. D. Nikolaiev
doaj   +1 more source

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