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...

DefinitionIntroductionThe frequency band of China Railway is 885-889MHz in the uplink direction and 930-934MHz in the downlink direction. The GSM-R system includes four parts: Network Subsystem (NSS),...

CausesIn actual work, it is often necessary to limit the observation time of the signal within a certain time interval. The process of taking a limited amount of data, that is, truncating the signal,...

OSA certification introductionChinese super-hard tools need to pass three barriers to go abroad. Chinese super-hard tools industry enterprises need to solve three problems if they want to enter the in...

ConceptIf the data is not intercepted in the whole cycle, the truncation will cause sudden changes at both ends of the signal waveform. The intercepted signal is very different from the original signa...

DevelopmentThe handheld hard disk duplicators in the international market can be roughly divided into two generations of products. The first-generation duplicator represented by SF-5000, SOLOII, and S...

Classic ExperimentIn the 1960s, Walter Mischel, a professor of psychology at Stanford University in the United States, designed a famous experiment on "delayed gratification". This experiment is It st...