Introduction Blockchain is an important concept of Bitcoin. It is essentially a decentralized database and also serves as the underlying technology of Bitcoin. Blockchain is a series of data blocks...

is generally a metal-oxide-semiconductor field effect transistor, or metal-insulator-semiconductor. G: gate; S: source; D: drain. The source (source) and drain (depletion layer) of the MOS tube can b...

Structure Figure 1 is a cross-sectional view of a typical planar N-channel enhancement mode NMOSFET. It uses a P-type silicon semiconductor material as a substrate, diffuses two N-type regions on it...

Security protection obligations performed by critical information infrastructure: (1) Set up a special security management organization and security management person in charge, and provide security...

National Information Infrastructure (NII) ——In fact, information infrastructure has already existed in every country, but it is different in terms of scale, advanced nature, and functional perfectio...

Logical structure design is generally divided into three steps:1. The logical design of transforming the database from the ER diagram to the relational model is mainly to transform the conceptual mode...

Book Introduction This book mainly introduces the basic theories and methods of computer logic analysis and design, including switch theory foundation, logic devices, analysis and design methods of c...

Virtual Local Area Network English: Virtual local area network Virtual local area network based on switched Ethernet In switched Ethernet, VLAN technology can be used by the switch The connected phys...

Ethernet interface overview DefinitionEthernet (Ethernet) is the most widely used LAN communication method, and it is also a protocol. The Ethernet protocol defines a series of software and hardwar...

Definition The certification space is a more advanced version of the normal space, which adds some functions and modules than the normal space. The most notable feature of the version is the "I like"...

Function introduction QQ space log is a type of log, especially those that write articles in QQ space. Just like writing an article in a blog, it can be used to write things, express personal thought...

Euler’s Conjecture (also known as Fermat’s Last Theorem) ContentWhen the integer n > 2, about x, y, z The indeterminate equation x^n + y^n = z^n has no positive integer solutions. Or when ∀b>2...

Restoration and release The restoration of the "Da Vinci Manuscript" has always been regarded as an important cultural heritage protection project in Italy. The Italian Arsllluminandi Publishing Hous...

Overview Drug clinical trials are an indispensable step to confirm the effectiveness and safety of new drugs. Conducting drug clinical trials requires the cooperation of a variety of professional an...

Clinical trials According to the definition of clinical trials in the "Code of Quality Management of Drug Clinical Trials" promulgated by the State Food and Drug Administration, clinical trials refe...