نتایج جستجو برای: underground development

تعداد نتایج: 1428517  

2017
Eun H. Lee George I. Christopoulos Kian W. Kwok Adam C. Roberts Chee-Kiong Soh

With a growing need for usable land in urban areas, subterranean development has been gaining attention. While construction of large underground complexes is not a new concept, our understanding of various socio-cultural aspects of staying underground is still at a premature stage. With projected emergence of underground built environments, future populations may spend much more of their workin...

Auxiliary ventilation of the blind development heading in underground mines is one of the most challenging work activities amongst mining underground operations. The auxiliary forcing ventilation system provides positive pressure, cooling, controlling gas layering, and removing diesel fumes and dust levels from development headings, stopes, and services facilities. The effectiveness of the auxi...

ژورنال: Journal of Railway Research 2018
Esfandiari Mehni, Reza, Hadizadeh Raisi , Ebrahim, Astaraki , Farshad , Gharouni Nik, Morteza,

Due to the development of urban subway lines in order to extend public transportation and to accommodate the increased number of trains, depot and parking are necessary. This is to provide a space for parking trains in non-operating hours and to carry out maintenance and repair operations on trains. Subway depot is a predetermined space where trains, washing, car parks, and refueling work are p...

2012
Hariom Agrawal

Researchers have worked on routing issues for adhoc-networks, VANET’s, and Wireless Sensor Networks in a normal scenario; recently there has been a recent trend towards the study on underground wireless networks and proposals for design and development for Wireless Underground Sensor Networks. This paper highlights the concept of wireless underground sensor network in the coal mine environment,...

ژورنال: اقتصاد مالی 2019

توسعه مالی با الزاماتی که برای فعالیت­های اقتصادی ایجاد  و با اعطای امتیازاتی که به گیرندگان وام می­دهد، یکی از عوامل مهم درکوچک­تر شدن اقتصاد زیرزمینی می­باشد. در این تحقیق یک الگوی (TVP-FAVAR)[i]با هدف بررسی تأثیر توسعه مالی بر بخش زیرزمینی اقتصاد ایران تصریح شده است. به این منظور از داده­های سری زمانی در بازه 1350 تا 1394 و دو ابزار توابع واکنش آنی و تجمعی استفاده شده است. نتایج نشان می­دهدک...

2002
Daniel Brunner Hulya Julie Yazici

System simulation is an increasingly popular technique for analyzing and improving existing as well as newly designed underground mining operations. An engineering firm that specializes in simulation helped a major metals producer build a long-range planning model of an existing underground mine. Subsequently the team adapted this model to assess technology alternatives in the design of a new m...

2014
Jintae Cho Jae-Han Kim

With power systems switching to smart grids, real-time and on-line monitoring technologies for underground distribution power cables have become a priority. Most distribution components have been developed with self-diagnostic sensors to realize self-healing, one of the smart grid functions in a distribution network. Nonetheless, implementing a real-time and on-line monitoring system for underg...

Journal: :Bulletin of Belgorod State Technological University named after. V. G. Shukhov 2018

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