Search results for keyword: experimental
Idle torque and dynamic torque
Torque and torque in rotary motion are two important physical quantities that are expressed in the same magnitude and unit. However, they have different meanings and physical meanings.
Torque is the moment of force on a rotating angular object, expressed in newtons per meter. It is a vector quan......
1059 
Oliver
Yield Point (σs) Introduction
Yield Point and Yield Strength
Yield point and yield strength are important characteristics of materials used in the engineering field. The yield point is the point at which plastic deformation begins in a material and the yield strength is the load at which it occurs. It is important to understa......
Noise Characteristics and Countermeasures of Motor Bearings
Noise Characteristics and Countermeasures of Motor Bearings
Motor bearing noise is a main type of noise in the operation of motors. The unique noise characteristics of electrically excited bearing vibration have a great impact on the sound environment of operating venues, so the study of bearing ......
Application of water source heat pump in civil air defense engineering
Ground-Source Heat Pump in Human Defense Engineering
Abstract
Ground-Source Heat Pump has been widely used in human defense engineering for its advantages in energy conservation, environmental protection and reliability. This article introduced the application of Ground-Source Heat Pump in human......
Cutting Database Research
Abstract
In recent years, with the rapid development of manufacturing industry and the widespread application of machining technology, research on cutting parameters has become increasingly important. In order to make the machining process more efficient and effective, an effective and feasible w......
Research and Development of NC Grinding System for Helical Tooth Cutting Tool
Research and Development of Numerical Control Grinding System for Spiral Cutter
Abstract
Spiral cutters are widely used in the wood processing industry. In order to improve its processing accuracy, numerical control grinding system for spiral cutter is developed in this paper. Firstly, the princ......
Application of ANSYS in Numerical Simulation of Laser Welding Temperature Field
Connection laser weldin temperature field numerical simulation based on ANSYS
As the most important welding process in the welding, the laser welding has become a hot field of the study due to its large welding depth and high welding efficiency, and therefore many researchers have conducted a lot......
GB 11914-89 Determination of chemical oxygen demand in water quality Dichromate method
Determination of Chemical Oxygen Demand of Water by Potassium Dichromate Method
Introduction:
The Chemical Oxygen Demand (COD) of water is an important indicator that reflects the amount of organic microbes and pollutants in the water, and is widely used as an important assessment index of water......
GB 6286-86 Method for Determination of Bulk Density of Molecular Sieves
Density determination of molecular sieve stacking
The density of molecular sieves, which is an important physical property, is closely related to the quality of the product, and it is also a very important index for the characterization and evaluation of molecular sieves. At present, the determin......
GB/T 13906-92 Determination of nitrogen oxides in air quality
GB/T 13906-92 Air Quality -- Determination of Nitrogen Oxides
This Standard GB/T 13906-92 specifies a method for determining nitrogen oxides in normal atmospheres. It is applicable to the determination of the concentration and transformation rate of nitrogen oxides in the atmosphere.
The main pr......
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