Download or read book Performance Evaluation of Electromagnetic Techniques for the Location of Trapped Miners written by John Durkin and published by . This book was released on 1982 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Historical Summary of Coal Mine Explosions in the United States 1981 1994 written by Harry Dobroski and published by . This book was released on 1996 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1983 with total page 1050 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wireless Communication in Underground Mines written by L. K. Bandyopadhyay and published by Springer Science & Business Media. This book was released on 2009-08-29 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless communication has emerged as an independent discipline in the past decades. Everything from cellular voice telephony to wireless data transmission using wireless sensor networks has profoundly impacted the safety, production, and productivity of industries and our lifestyle as well. After a decade of exponential growth, the wireless industry is one of the largest industries in the world. Therefore, it would be an injustice if the wireless communication is not explored for mining industry. Underground mines, which are characterized by their tough working conditions and hazardous environments, require fool-proof mine-wide communication systems for smooth functioning of mine workings and ensuring better safety. Proper and re- able communication systems not only save the machine breakdown time but also help in immediate passing of messages from the vicinity of underground working area to the surface for day-to-day normal mining operations as well as for speedy rescue operations in case of disaster. Therefore, a reliable and effective commu- cation system is an essential requisite for safe working, and maintaining requisite production and productivity of underground mines. Most of the existing systems generally available in underground mines are based on line (wired) communication principle, hence these are unable to withstand in the disaster conditions and dif?cult to deploy in inaccessible places. Therefore, wireless communication is an indispe- able, reliable, and convenient system and essential in case of day-to-day normal duty or disaster situations.
Download or read book Report of Investigations written by and published by . This book was released on 1982 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Case History of a Major Rock Burst written by Fred Leighton and published by . This book was released on 1982 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bureau of Mines Publications and Articles with Subject and Author Index written by United States. Bureau of Mines and published by . This book was released on 1990 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bureau of Mines Publications and Articles with Subject and Author Index written by United States. Bureau of Mines. Branch of Editorial Services and published by . This book was released on 1982 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bureau of Mines Research written by United States. Bureau of Mines and published by . This book was released on 1986 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Visible Light Wireless Communication in Underground Mine written by Simona Mirela Riurean and published by Springer Nature. This book was released on 2021-02-02 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a chronological literature review of optical wireless communication, followed by a detailed blueprint of a visible light communication (VLC) setup with the key characteristics of LEDs and photodetectors. Next, the optical channel impulse response and its description for different possible topologies is presented together with a description of the optical and electrical setup for both optical transmitters (oTx) and optical receivers (oRx). Different single carrier and multi-carrier modulations particularly applied in visible light communication setups are also presented. Both the optical and electrical modules of oTx and oRx are simulated and then prototyped and tested as embedded devices in an underground positioning and monitoring system for a continuous real time identification of the personnel on the main underground galleries where the illumination network is already installed. Presents a comprehensive look at visible light communication technology, both in description and application; Shows where and how VLC has been launched on the market as an alternative or partner technology to the existing wireless communication technologies based on radio frequency; Includes special focus on underground positioning and monitoring with embedded VLC.
Download or read book Electromagnetic Technique for Locating Boreholes written by H. Kenneth Sacks and published by . This book was released on 1978 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Subject Catalog written by Library of Congress and published by . This book was released on with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1983-05 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Premining Investigations for Hardrock Mines written by and published by . This book was released on 1982 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Information Circular written by and published by . This book was released on 1982 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Postdisaster Survival and Rescue Research written by and published by . This book was released on 1982 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings consist of papers presented at a Bureau of Mines technology transfer seminar on post disaster survival and rescue research: (1) an overview of oxygen self-rescuer technology, (2) laboratory environmental testing of chemical oxygen self-rescuers for ruggedness and reliability, (3) chemical oxygen self-contained self-rescuer escape study, (4) medium frequency radio communication system for mine rescue, (5) finding and communicating with trapped miners, (6) Bureau of Mines borehole probes program, and (7) mine personnel locator and in-mine activity controller. Several technology transfer seminars are held each year to bring the latest results of Bureau research to the attention of the mining industry as quickly as possible. (Out of print.).
