نتایج جستجو برای: blast operations

تعداد نتایج: 157809  

Journal: :journal of mining and environment 2013
hassan bakhsandeh amnieh alireza mohammadi m mozdianfard

ground vibrations caused by blasting are undesirable results in the mining industry and can cause serious damage to the nearby buildings and facilities; therefore, controlling such vibrations has an important role in reducing the environmental damaging effects. controlling vibration caused by blasting can be achieved once peak particle velocity (ppv) is predicted. in this paper, the values of p...

Journal: :Turkish archives of otorhinolaryngology 2017
Mustafa Aslıer Nesibe Gül Yüksel Aslıer

Objective The aim of this study is to identify the otologic injuries due to handmade explosive-welded blast travma in the law enforcement officers during the combat operations in the curfew security region and to specify the disorders that Otolaryngology and Head Neck Surgery (OHNS) physicians can face during such operations. Methods Medical records of patients in law enforcement who were ini...

2003
William G. Farmerie Joachim Hammer Li Liu Markus Schneider

An essential problem for the biologist is the processing and evaluation of BLAST query results. We advocate the deployment of database technology and describe a user-driven tool, called BlastQuest. BlastQuest provides interactive, Web-enabled query, analysis, and visualization facilities beyond what is possible by current BLAST interfaces. Specifically, the BLAST results are extracted, structur...

Journal: :journal of structural engineering and geo-techniques 2015
hossein haghighimanesh mohammad azadi

nowadays, tunneling in urban areas is a common activity for a variety of transportations such as subways, water supply, lifelines andsewers that may require blast operations. the characteristics of stress waves of the blast are quite different from earthquake waves. the blast waves are usually of high frequency content, short duration, equality of amplitudes in horizontal and vertical direction...

Journal: :journal of the structural engineering and geotechnics 0
hossein haghighimanesh m.sc. student, department of civil eng, qazvin branch, islamic azad university, qazvin, iran mohammad azadi assistant prof, department of civil eng, qazvin branch, islamic azad university, qazvin, iran

nowadays, tunneling in urban areas is a common activity for a variety of transportations such as subways, water supply, lifelines andsewers that may require blast operations. the characteristics of stress waves of the blast are quite different from earthquake waves. the blast waves are usually of high frequency content, short duration, equality of amplitudes in horizontal and vertical direction...

Hossein Haghighimanesh Mohammad Azadi,

Nowadays, tunneling in urban areas is a common activity for a variety of transportations such as subways, water supply, lifelines andsewers that may require blast operations. The characteristics of stress waves of the blast are quite different from earthquake waves. The blast waves are usually of high frequency content, short duration, equality of amplitudes in horizontal and vertical direction...

بخشنده امینه, حسن , مالکی نژاد, حمیدرضا,

The main aim of blasting operations in mining and civil engineering projects is size reduction of the rock-mass. Particle size reduction (P.S.R) affects the efficiency of the loading, haulage and milling equipments. Therefore, prediction of mean fragment size in designing optimum blasting patterns is crucial. In this research, a model is presented for predicting mean fragment size caused by bla...

2013
Massimiliano Orsini Simone Carcangiu Gianmauro Cuccuru Paolo Uva Anna Tramontano

BLAST-based similarity searches are commonly used in several applications involving both nucleotide and protein sequences. These applications span from simple tasks such as mapping sequences over a database to more complex procedures as clustering or annotation processes. When the amount of analysed data increases, manual inspection of BLAST results become a tedious procedure. Tools for parsing...

2006
Ali Azadeh Farid Ghaderi

The objective of this study was to develop an integrated simulation model of an automatic blast furnace in a full-scale steelmaking factory. The integrated simulation model introduces a set of optimizing alternatives through sensitivity analysis. The simulation model is built by considering all major and detailed operations and interacting systems of the blast furnace workshop. The workshop is ...

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