Concept Containing three identical unknowns, the degree of the term containing the unknown in each equation is once, which is called a ternary linear equation system. In the system of equations, if...
Character experience In 1982, he graduated from Shanghai University of Technology (now Shanghai University) majoring in metallurgical engineering with a bachelor's degree in engineering. In 1984, he...
Development History On March 3, 1863, the former US President Abraham Lincoln signed a bill to announce the establishment of the National Academy of Sciences (United States, NAS) . At that time, the...
Definition The shortest path problem is a classic algorithm problem in graph theory research, which aims to find the shortest path between two nodes in a graph (composed of nodes and paths) . The sp...
OverviewFunction name: fflushFunction: Clear the read and write buffer, when the data in the output buffer needs to be physically written immediatelyHeader file: stdio.hPrototype: intfflush(FILE*strea...
How to strengthen on-site service management? Usually field service management is a task-oriented transactional event. In a team with a large number of field service personnel, it is usually necessary...
DefinitionIncluding people (workers and managers), machines (equipment, tools, work station appliances), materials (raw materials), methods (processing, testing methods), environment (environmental ),...
IntroductionFTTH (FiberToTheHome)-Fiber to the home is the best mode for full-service, high-bandwidth access requirements so far. The development of FTTH mainly has two paths-active optical network an...
A split between the Eastern and Western Christian churches in the 9th century. In 858, the lay scholar Fotius was appointed Patriarch of Constantinople by the Byzantine Emperor Mikhail III to replace...
DefinitionRFC1242 performance test, calibration term for network interconnection equipment. Four tests are defined:throughput, delay, frame loss rate, back-to-back. Introduction to the RFC2544 protoco...
ConceptDistributed Antenna System (orDAS) is a predetermined space or building with multiple spatially separated antenna nodes connected through multiple signal transmission media A mobile communicati...
The working method of ultrasonic gas leakage detection principleIf a container or pipeline is filled with gas, when the internal pressure is stronger than the external pressure, due to the large press...
CnSCA: ChinaNon-stickCoatingAssoctiationSince its inception, non-stick coatings have immediately swept the market with their excellent anti-corrosion properties and non-stick properties, and are widel...
1. Main technical indicators1.1 General characteristic indicatorsThe frequency bands commonly used by mobile phones in my country mainly include CDMA1X and 800MHz frequency bands occupied by CDMA mobi...