نتایج جستجو برای: road and mine density

تعداد نتایج: 16893052  

Journal: :جنگل و فرآورده های چوب 0
فاطمه موسوی دانشجوی کارشناسی ارشد مهندسی جنگل، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران احسان عبدی دانشیار دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران علی رئیسی استبرق استادیار گروه مهندسی آبادانی و آبیاری، دانشگاه تهران، کرج، ایران باریس مجنونیان استاد دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

stabilization, alter and improvement of engineering properties of soil are for providing predetermined goals. the most important aim of soil stabilization is increasing long term soil strength, but in very wet and loos lands the other aim of soil stabilization, is to decrease plasticity characteristic of soil, which are tested by atterberg limits tests. since the road soils of namkhane district...

2003
William J. Johnson Robert E. Snow John C. Clark

Efforts to delineate underground mine workings in the vicinity of tailings impoundments has relied on available maps and confirmatory boreholes. Often the characterization of regions between boreholes remains suspect or entirely unknown. Surface geophysical measurements can be used to supplement the borehole data and better delineate these intermediate zones. Furthermore, geophysics can be used...

Journal: :Wireless Personal Communications 2015
Javier Barrachina Piedad Garrido Manuel Fogue Francisco J. Martinez Juan-Carlos Cano Carlos Miguel Tavares Calafate Pietro Manzoni

Road traffic is experiencing a drastic increase in recent years, thereby increasing the every day traffic congestion problems, especially in metropolitan areas. Governments are making efforts to alleviate the increasing traffic pressure, being vehicular density one of the main metrics used for assessing the road traffic conditions. However, vehicle density is highly variable in time and space, ...

2009
Takashi Gojobori William Martin Lulu Stadler

COUNCIL Jody Hey, President Department of Genetics, Rutgers University, 604 Allison Road, Piscataway, NJ 08854 USA. E-mail: [email protected]. Ken Wolfe, President-Elect Smurfit Institute of Genetics, Trinity College, University of Dublin, Dublin 2, Ireland. Email: [email protected]. Michael Lynch, Past President Department of Biology, Indiana University, 1001 E. Third Street, Bloomington,...

2017
Fumikazu Yoshida Akio Hata Haruo Tonegawa

The Itai-Itai disease case is one of four major pollution-related lawsuits occurring in Japan after World War H. This paper, which is based on investigations of the pollution source, the Kamioka mine, considers (1) the history of the disturbances to the environment caused by the Kamioka mine; (2) the Itai-Itai disease suit; (3) the pollution nprevention measures and methods of the Kamioka mine ...

Journal: :journal of mining and environment 2011
v. f. navarro-torres r. n. singh

water has an important role in creating pollution problems in the mining regimes influencing the surrounding surface environment. the purpose of this study is to make an assessment of groundwater quality in an underground mine site in portugal with a view of determining the pollution potential of groundwater. in the corresponding surface area of this underground mine, intersections of fou...

Journal: :آب و خاک 0
نسترن اسماعیل پورفرد جواد گیوی علیرضا داودیان

introduction due to mining, considerable amounts of heavy metal bearing mineralsare scattered in the atmosphere in the form of dust and make the surrounding air, water and soils polluted.runoff water movingfrom the mountainstowardsplains may also transport heavy metals from mines to the soils.one type ofpollutions is contamination withheavy metals.the purpose of the present research has been to...

2017
Junyou Zhang Yaping Liao Shufeng Wang Jian Han

Driving Decision-making Mechanism (DDM) is identified as the key technology to ensure the driving safety of autonomous vehicle, which is mainly influenced by vehicle states and road conditions. However, previous studies have seldom considered road conditions and their coupled effects on driving decisions. Therefore, road conditions are introduced into DDM in this paper, and are based on a Suppo...

2009
G. Palubinskas

In this paper we propose a new model based traffic parameter estimation approach in congested situations in time series of airborne optical remote sensing data. The proposed approach is based on the combination of various techniques: change detection, image processing and incorporation of a priori information such as road network, information about vehicles and roads and finally a traffic model...

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