When it comes to the protocols we encounter most in computer networks, we cannot ignore the TCP/IP protocol. The TCP/IP protocol is also the most famous protocol on the Internet, so let’s discuss the TCP/IP protocol together. Historical Background of TCP/IP Before the TCP/IP protocol existed, back in the 1960s, many countries and regions recognized … Read more
Blue Team – Technical Exchange In the field of information security, the characteristics of network security can be classified according to the OSI reference model, facilitating a systematic approach to analyzing and researching information network security risks. What is the OSI Reference Model? The OSI (Open System Interconnect) model, commonly known as the “OSI Reference … Read more
Fundamentals of Networking 1、OSI（Open System Interconnection）Open System Interconnection Model Seven-layer model: Layer 1: Physical Layer : Transmission of raw bit streams over mechanical, electronic, and timing interfaces communication channels Layer 2: Data Link Layer: Physical addressing, while transforming the raw bit stream into logical transmission lines Layer 3: Network Layer: Controls the operation of subnets, … Read more
The Concept of OSI: Open System Interconnect is a reference model defined by ISO (International Organization for Standardization). It is a flexible, robust, and interoperable model, not a protocol, commonly used to analyze and design network architecture. The OSI model is divided into seven layers: OSI divides the network into seven layers, from bottom to … Read more
First Author: Li Pengcheng Corresponding Author: Li Ge Affiliation: University of Alberta, Canada [Research Background] Current lithium-ion batteries rely on intercalation chemistry, achieving an energy density of about 250 Wh kg-1. However, there is a continuous demand for higher energy density (500 Wh kg-1), especially for electric vehicles and even electric aircraft. One potential method … Read more
Click to Follow: PTC Coating Anti-Corrosion Technology Authors: Du Juan, Li Fang, Song Hai Peng, Wei Zi Ming, Li Xiang Yun School of European Aviation Engineering, Civil Aviation University of China, Tianjin 300300 0 Introduction The single-layer anti-corrosion coatings prepared on metal surfaces cannot provide efficient and lasting protection due to issues like insufficient density … Read more