Introduction to Cable TV CATV (Cable Television) for short Or fiber optic copper cable hybrid system. The earliest cable TV service appeared in 1948, when the cable TV network was used to realize th...

Basic introduction Currently, the production and broadcasting of TV signals have been digitized. Only the user’s signal reception is still in the analog stage, but users can use digital TV set-top b...

Basic overview IntroductionCable Modem access technology is developing rapidly in the world, especially in North America, with the number of users increasing at a rate of more than 100% each year. I...

Introduction China Cable has more than 40,000 kilometers of national radio and television optical cable backbone network, which connects more than 100 million cable TV users across the country, and i...

Definition Data block is a group of records arranged in sequence, between the main memory and the input, output device or external memory A unit of data for transmission. It is the physical record o...

Introduction Character of engine revolving speed refers to the functional relationship between the engine crankshaft speed and the power, torque and unit fuel consumption of the engine. This functio...

Calculation formula When the rotating magnetic field has opposite poles, the magnetic field will rotate in space every time the alternating current changes. So the synchronous speed iswhere: ——the f...

Introduction The faster the rotation speed of the hard disk, the faster the hard disk can find files, and the relative hard disk transmission speed has also been improved. The hard disk speed is expr...

Rotation speed concept Rotation speed is a physical quantity of the ratio of the number of revolutions of a rotating body to time. In engineering, it is usually expressed as speed = number of rotati...

Introduction Rotationl Speed ​​is the rotation speed of the motor spindle in the hard disk, which is the maximum number of revolutions that the hard disk platter can complete in one minute. The spee...

Technology definition (Systems Biotechnology or Biosystems Technology)Systems biotechnology belongs to systems biology and systems biomedicine (systems biomedicine or biosystems medicine), The techn...

Introduction (systems biological engineering, systems bio-engineering, biosystem engineering) Systems biological engineering is the engineering application of systems biology, including systems based...

Annotation Bioengineering is also called biotechnology or biotechnology. There is no unanimously accepted definition and scope of content. It is generally believed that, as an applied science, bioeng...

Development History China's bioengineering industry began in the early 20th century. The Central Epidemic Prevention Department was established in 1919. This was the first bioengineering research ins...

Development Overview Biosystems engineeringIn the past 40 years, the development of life sciences has been extremely rapid, and the combination of life sciences and engineering technology has become...

Composition structure Calculators are generally composed of arithmetic unit, controller, memory, keyboard, display, power supply, and some optional peripheral equipment and electronic accessories, w...