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High-strength steel sheet
25/10/2021 1009
High-strength steel sheet

Introduction High-strength thin steel sheet refers to a strip of 0.1~4mm rolled from low-alloy high-strength steel, which is named after its high strength. Characteristics High-strength steel sheet...

Silicon steel sheet iron core
25/10/2021 1007
Silicon steel sheet iron core

is also the material with the largest amount of magnetic materials used in power transformers. Especially suitable for low frequency and high power. Commonly used are cold-rolled silicon steel sheet...

Super Permalloy
24/10/2021 1248
Super Permalloy

Introduction Ultrapermalloy refers to a nickel-iron alloy with high permeability of 5Mo%, 79Ni%, and the rest is iron and a small amount of manganese. Its initial permeability and maximum permeabili...

Ammonite
24/10/2021 1258
Ammonite

Iron-nickel alloyiron-nickel alloyAlso includes the following alloys: (1) 68Fe+27Ni+5Mo and 53Fe+42Ni+5Mo, with It has a high thermal expansion coefficient and can be used as the bimetallic sheet of t...

Saturation magnetization
23/10/2021 1106
Saturation magnetization

Overview Saturation magnetization is a characteristic of ferromagnetic materials. Ferromagnetic materials are magnetized under the action of an external magnetic field. At the beginning, with the gr...

Soft magnetic core
23/10/2021 1044
Soft magnetic core

Common magnetic performance parameters of soft magnetic materials Saturation magnetic induction intensity bs: Its size depends on the composition of the material, and its corresponding physical state...

Pseudocrystalline growth technology
22/10/2021 997
Pseudocrystalline growth technology

In epitaxial growth, when the lattice constants of the growth layer and the substrate are mismatched, there will be stress and strain energy accumulated in the growth layer, and this energy will incre...

Crystal growth theory
22/10/2021 1422
Crystal growth theory

Basics The thermodynamic theory of crystal growth 　J.W. Gibbs's famous paper "On the Balance of Multiphase Matter" published in 1878 laid the foundation of the thermodynamic theory. He analyzed the...

Social Systems Engineering Expert Group
21/10/2021 946
Social Systems Engineering Expert Group

Organizational Overview The secretariat work and technical support of the Social System Engineering Expert Group are undertaken by the Realizer Beijing Institute of Social System Engineering (RISSE)...

System Engineering Application
21/10/2021 1088
System Engineering Application

Research object System engineering takes complex large-scale systems as the research object, which was first proposed and applied by Bell Telephone Company in the 1940s. The development of some larg...

Softswitch and IMS technology
20/10/2021 966
Softswitch and IMS technology

Copyright information Book title: Softswitch and IMS technologyAuthor: Yang FangchunPress: Beijing University of Posts and Telecommunications Publication time: 2007ISBN:9787563513901Format: 16Price:...

Soft switch
20/10/2021 1073
Soft switch

Concept OriginIn the traditional PSTN switching network, service control, call control, and transmission bearer are all concentrated in the switch, and all PSTN services must Realized through TDM s...

Digital network
19/10/2021 1158
Digital network

Advantages of digital network Digital network has a series of advantages due to the use of digital technology: it can reduce hardware cost, improve reliability and maintainability, improve line trans...

Integrated Services Digital Network Switch
19/10/2021 1090
Integrated Services Digital Network Switch

Functions The functions of ISDN switches include:① Carrying and exchanging user information, that is, the switch enters the time division multiplex line (from the user or from other networks in the...

3 (Internet language)
18/10/2021 999
3 (Internet language)

Usage 1: In games, especially in competitive games, due to the need to express meaning to teammates quickly, 3333 means flash and retreat because of its homophonic sound. The more the number, the more...