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mine explosives
Explosives Used in Mining
Explosives are essential components of mining operations. Explosives are used to blast away rock, quarry materials, and debris in order to create the desired surface or shape in a mining project. Explosives can also be used to create tunnels and underground space. The us......
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event tree analysis
Event Tree Analysis
Event tree analysis is a systematic way of examining possible outcomes of a given hazard, incident, or risk. It is used in a variety of fields, such as safety and reliability engineering, finance, and operations research. This analysis allows for the testing of various scenari......
Soft Fault Analysis and Treatment of Siemens 802D System
Siemens 802D System Soft Error Analysis and Treatment
Introduction
The Siemens 802D system is an innovative control solution integrating CNC technology, components, and services into one comprehensive system. This control systems comprehensive technology and comprehensive service are used in mach......
GB 10873-89 Test methods for small piston single-stage refrigeration compressors
Test Method for Small Reciprocating Single-Stage Refrigeration Compressors
This test method is applied to single-stage refrigeration compressors typically employed for home refrigerators and freezers, cold storage units, commercial and industrial high and low temperature systems, as well as air c......
A Review of Brazing (Part 2)
Diamond-welding is a welding technique that has gained its reputation for joining process for difficult-to-weld materials such as stainless steel and platinum as well as for joining larger objects that require stronger welds. It is a bonding process that utilizes the reaction of pressure and heat ......
Chromium Phosphating Technical Standards for Aluminum and Aluminum Alloys
Aluminum and Aluminum Alloy Chromophoretic Coating Technology Standards
Aluminum and aluminum alloy chromophoretic coatings are widely used in a variety of fields due to their excellent performance and decorative properties. The production process of the chromophoretic coating is an electrochemic......
Injection secondary oxidation
Introduction
Oxidation-reduction (redox) reactions are fundamental chemical processes that involve the transfer of electrons between two species. Redox reactions play a crucial role in many environmental processes, as they are often used to generate energy and they are key components of the atmosp......
The principle of short-circuit arc ignition method and the method of improving the success rate of arc ignition
Arc initiating for Low Voltage Circuit Breakers:
Introduction
Low voltage circuit breakers are used to protect electrical systems and equipment from being overloaded or short circuited. The function of the breaker is to detect an over current, open the circuit, then to withstand and extinguish an ......
Rare earth metal material
Rare Earth Metals
Rare earth metals, also known as rare metals, are a group of 17 chemical elements which include the 15 lanthanides, with the addition of scandium and yttrium. Although they are referred to as “rare”, they actually comprise of almost 0.2 percent of the Earth’s crust.
Sometime......
Preparation of rhenium-containing catalyst
Preparation of Ruthenium-cobalt Bimetallic Catalyst in Aqueous Media
Catalysts are essential components in a wide range of chemical reactions, playing a vital role in the efficient conversion of reactants into products. Ruthenium and cobalt are two important transition metals which have been wide......
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