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Ammonite
24/10/2021 1966
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 1928
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 1897
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 1777
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 2216
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 1574
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 1870
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 1720
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 1899
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 1930
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 1906
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 1669
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...

9527 (Internet language)
18/10/2021 1726
9527 (Internet language)

StatementAs CP-type entries do not conform to the principles of encyclopedia writing, they will be fully rectified in the near future. Relevant fans are requested to read the announcement content in...

Linker
17/10/2021 1695
Linker

LinkerIn this case, the target code, that is, the machine code that has not yet been connected, and the executable machine code There is a difference between. The linker also links the target program...

Connection (programming term)
17/10/2021 1821
Connection (programming term)

Inner join Inner join (inner join) is a common "join" operation used in applications, it is generally Both are the default connection types. The inner join combines the columns of the two tables (su...