Search results for keyword: propagation
rock mass failure
Rock Fracture
Rock fracture is the process of breaking up rocks through the application of force. Rocks can fracture due to a variety of factors, such as thermal stress, tectonic stress, or external impacts. Once a rock has fractured, it must be mechanically stabilised so that it does not continu......
1041 
Sophia
Wave speed test
Ultrasound Velocity Testing
Ultrasound vibrational energy has been used as a core diagnostic tool by researchers, engineers and medical professionals for many years. Ultrasound velocity testing involves the calculation of an object’s velocity by analyzing the propagation of an ultrasound wave thr......
Blasting safety distance
Blast safety distance, also known as the minimum separation distance, refers to the minimum distance between the explosive charge and related objects in an explosive operation. In other words, it is to determine the minimum distance between the blasting source and the protected target by theoretic......
Review of Ten Industrial Noise Source Control Technologies
Industrial Noise Control Techniques Review
Noise pollution is increasingly becoming a serious problem in industrial and urban areas, especially in densely populated cities. In Europe and the United States, noise is the major form of environmental pollution with the increasing use of industrial an......
combustion science
Combustion science is the study of the reaction between heat and a fuel to produce heat, light, and other products. It is a subfield of chemical engineering and is closely related to thermodynamics, material science, and fluid mechanics.
The basic principles of combustion can be found in everyda......
GB 5332-85 Test method for ignition temperature of flammable liquids and gases
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The ignition temperature is an important parameter of a combustible liquid or gas. It is defined as the minimum temperature of an explosive gas-air or liquid-vapor mixture which can cause flame propagation when the explosion is initiated by a specified source of energy. The ignition temp......
Shaft Failure Modes and Design Criteria
，你可以在网上搜索并引用他人的文章，但要注明参考来源 Failure Modes and Design Considerations of Shafts A shaft is an integral part of most machines and can be found in a variety of mechanical systems. It is often used to transfer energy from one device to another and is considered to be one of the m......
bearing noise
Noise from Bearings
Noise from bearings is a common problem in mechanical systems and is a major source of machine failure. Ultimately, bearings create noise due to friction between the rolling elements and raceways as well as due to misalignment. There are many reasons this occurs and depending ......
Definition of crack (defect)
Crack Definition
A crack is a type of damage that occurs when a material fractures, usually along a relatively straight line, into two or more parts. Cracks may occur in most materials: metals, ceramics, composites, and inorganic materials such as concrete and asphalt.
In mechanical engineering,......
Commissioning of communication and railway signaling systems
Telecommunications and Railway Signal System Testing
Telecommunications and railway signal systems are integral components of the current global infrastructure. As more countries move to more modern, technology-driven systems, having the ability to test these systems for proper functionality and ......
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