نتایج جستجو برای: close in explosion
تعداد نتایج: 16989286 فیلتر نتایج به سال:
considerations on the explosion resistant design of special infrastructures have increased in the recent years. amongst the various types of infrastructures, road and railway tunnels have a unique importance due to their vital role in connection routes in emergency conditions. in this study, the explosion effects of a projectile impacting on a railway tunnel located in a jointed rock medium has...
PBXN-109EB is a new plastic bonded explosive containing energetic binder system NHTPB-NPB that has better performance and energetic properties than PBXN-109. In this work, at first, kinetic parameters of thermal decomposition were extracted via kissinger method and differential scanning calorimetery (DCS) technique for PBXN-109EB in various heating rates and then its decomposition half-life (ag...
the history of five thousand years of human civilization (with only 292 years with no war) and the experiencesof the past two decades of our country shows that the enemies’ approach is based on strong air attack just inthe first month, and civilians bombarding begins if the spirit of national defense continues after two weeks.so the buildings in the cities are damaged in different ways by the a...
abstract: the potato tuberworm, phthorimaea operculella (zeller), is an important insect pest of potato (solanum tuberosum l.) in the storage and field in most parts of the world especially in tropical and subtropical regions due to its close relationship with the host, high reproductive potential and high economic losses. information on host preference, life table parameters and digestive en...
Introduction: compressed natural gas stations are one of the most critical and dangerous urban land uses and should be highly regarded. The domino effects of accidents are essential concepts in urban areas. The present study aims to analyze explosive domino accidents at compressed natural gas stations (CNG). Modeling the consequence in fuel stations can minimize the likelihood of a crisis and l...
Computing has been an enormous accelerator to science and it has led to an information explosion in many different fields. Future advances in science depend on the ability to comprehend these vast amounts of data. In this paper, we discuss challenges and opportunities for social data analysis in the scientific domain.
Hydrogen refueling stations are one of the key infrastructure components for hydrogen-fueled economy. Skid-mounted hydrogen (SHRSs) can be more easily commercialized due to their smaller footprints and lower costs compared stationary stations. The present work modeled explosions in a skid-mounted station predict overpressures hydrogen-air mixtures investigate protective effects different explos...
Background and aims: Attention to safety of process plants adjacent residential area, especially in the big cities is extremely importance from the perspective of the safety engineering and risk management. This study was carried out whit the aims of identification of hazard points of explosion in Town Border Station (TBS) and qualitative and quantitative analysis of their occurrence causes and...
Increasing the explosion power simultaneously reduction of explosive sensitivity caused to preparing new species of explosives. One of the considerable compounds in this field is dihydroxyl ammonium 5,5′-bistetrazole-1,1′-diolate (TKX-50). Evaluation of explosion properties of this material shows that its explosion efficiency is equal with CL-20. TKX-50 is compatible with most of th...
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