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Management techniques
31/10/2021 1236
Management techniques

There are three types of data models: hierarchical model, mesh model and relational model. In addition, there are technologies such as reliability engineering and industrial engineering. Software tech...

Regular quota
30/10/2021 1361
Regular quota

investmenth2> regular fixed purchase fund is a way of managing money for ordinary people, especially for no savings, but there are fixed-income investors balances every month. Specifically, it i...

Quota
30/10/2021 1500
Quota

Citation explanation ⒈ The prescribed amount. Tang Yuanzhen’s "Money and Goods Proposal": "Since the state has imposed two taxes, the world’s wealth is limited to three products. "Please reduce Su So...

Parity check code
29/10/2021 1298
Parity check code

Basic concept Parity check code is a simple and widely used method to increase the minimum distance of a binary transmission system. For example, a single parity check will increase the minimum cod...

Parity check
29/10/2021 1328
Parity check

Basic introduction How it worksIn order to detect and correct memory soft errors, the first thing that appears is memory "parity". The smallest unit in the memory is a bit, which is also called a "b...

Expanded memory
27/10/2021 1189
Expanded memory

Introduction Expanded memory (Expanded Memory) can also be converted from expanded memory simulation. Therefore, the difference between expanded memory and expanded memory does not lie in the locati...

Memory expansion
27/10/2021 1209
Memory expansion

Implementation technologyVirtual storage technology is the main means to realize memory expansion. It regards external memory as a direct extension of memory, thus combining limited real memory (ref...

Virtual circuit
26/10/2021 1157
Virtual circuit

Introduction A virtual circuit is a link between two or more end stations on a packet-switched network. It provides temporary or dedicated connection-oriented sessions between two endpoints. Definin...

EMU auxiliary power supply system
26/10/2021 1174
EMU auxiliary power supply system

Introduction This book explains in detail the basic principles and overview of the auxiliary power supply system for EMUs. It focuses on the basic knowledge and maintenance, maintenance and overhaul...

High-strength steel sheet
25/10/2021 1079
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 1077
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 1347
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 1327
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 1174
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 1121
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...