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At present, M1 (Mifare one) cards are widely used in the field of contactless user identity authentication applications, but the dedicated and undisclosed hardware logic algorithm it uses has been ill...[Details]
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Abstract：This article first introduces the independent power supply system active filter harmonic and reactive current compensation principle. And then, when active filter output power can not meet...[Details]
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The forward and reverse switches are divided into brushless DC and AC motors. It uses a transistor to control the forward and reverse rotation, a contactor, and a relay to control the three-phase m...[Details]
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Traditionally, power is the product of voltage and current. According to market research, engineers often need to frequently switch between power supplies of different specifications to test products ...[Details]
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Although Google Search is not available in mainland China, many of Google's businesses have not left China, and there are many domestic collaborations in AI, which has now caused dissatisfaction amon...[Details]
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The Weber hardness tester is a commonly used measuring instrument. When using the Weber hardness tester, users need to master the product knowledge. Today, the editor mainly introduces the application...[Details]
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At present, the LED fluorescent lighting market is relatively active, and LED driver power supply manufacturers are mainly divided into three categories: the first category is the factory that develo...[Details]
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my country's Ministry of Science and Technology has clearly pointed out that the smart grid is an important platform for implementing new energy strategies and optimizing energy resource allocation...[Details]
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Due to the needs of microwave engineering, most microwave RF components have female ports, while the ports of cable connectors are one female and one male. These microwave RF components cannot be di...[Details]
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Introduction The ultra-high frequency (UHF) band radio frequency identification (RFID) near-field reader antenna (NFRA) is attracting much attention due to its potential application in single produc...[Details]
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1 Introduction
With the rapid development of the national economy, some industries have continuously put forward new requirements for packaging equipment. Domestic packaging machines are far f...[Details]
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Zimmer Biomet has announced that it has received FDA approval for its ROSA shoulder replacement system, which the company claims is the first
robot
for shoulder surgery
.
Shoulder join...[Details]
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The 2019 China Smart City Forum, hosted by the China Electronic Information Expo Organizing Committee and organized by Beijing CCID Network Information Technology Co., Ltd., was held at the Shenzhen ...[Details]
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NAND Flash is a non-volatile memory using NAND structure technology. It has the characteristics of ROM memory. The data stored in the chip can be maintained for 10 years without loss in the case of...[Details]
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1 Introduction Stepper motors can achieve fairly high positioning accuracy in a simple open-loop operation mode, and can output large torque when running at low speed. Therefore, they have been...[Details]
Microcontroller MCU
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