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An explosive weapon generally uses high explosive to project blast and often fragmentation from a point of detonation. Explosive weapons may be subdivided by their method of manufacture into explosive ordnance and improvised explosive devices . When explosive weapons fail to function as designed they are often left as unexploded ordnance.
Explosive materials are produced in numerous physical forms for their use in mining, engineering, or military applications. The different physical forms and fabrication methods are grouped together in several use forms of explosives. Explosives are sometimes used in their pure forms, but most common applications transform or modify them.
A mining simulator is a type of simulation used for entertainment as well as in training purposes for mining companies. These simulators replicate elements of real-world mining operations on surrounding screens displaying three-dimensional imagery , motion platforms , and scale models of typical and atypical mining environments and machinery.
The most commonly used explosives in mining today are ANFO based blends due to lower cost than dynamite. Before the advent of tunnel boring machines (TBMs), drilling and blasting was the only economical way of excavating long tunnels through hard rock, where digging is not possible.
Explosive energy is released directly away from the surface of an explosive, so shaping the explosive will concentrate the explosive energy in the void. If the hollow is properly shaped, usually conically, the enormous pressure generated by the detonation of the explosive drives the liner in the hollow cavity inward to collapse upon its central ...
The composition of the two most common variants differ according to their use. The 1A (or 10) variant is used for mining, and is based mostly on crystalline PETN.The versions 1AP and 2P are formed as hexagonal booster charges; a special assembly of PETN and wax inside the charge assures high reliability for detonating cord or detonator.
Jira (/ ˈ dʒ iː r ə / JEE-rə) [4] is a software product developed by Atlassian that allows bug tracking, issue tracking and agile project management.Jira is used by a large number of clients and users globally for project, time, requirements, task, bug, change, code, test, release, sprint management.
Cordtex is a type of detonating cord generally used in mining. "Cordtex" and "Primacord" are two of many trademarks which have slipped into use as a generic term for detonating cord. [1] It uses an explosive core of pentaerythritol tetranitrate (PETN) inside its plastic coating.