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On January 11, Shenzhen Jingfeng
Medical
Technology Co., Ltd. (hereinafter referred to as "Jingfeng Medical") submitted a second application for listing on the main board of the Hong Kong S...[Details]
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First of all, I want to explain why I wrote this document? I wanted to learn something, but I was too eager for success and too confident, so I bought a Tiny4412 board directly. However, there was to...[Details]
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从1949年到2019年，中华人民共和国走过了70年的风风雨雨，中国共产党领导中国人民自力更生、艰苦奋斗，创造了举世瞩目的中国奇迹。 实现中华民族的伟大复兴，是近代以来中国一切仁人志士梦寐以求的社会理想。新中国成立70年来，我们比历史上任何时期都更接近中华民族伟大复兴的目标，比历史上任何时期都更有信心、有能力实现这个目标。 这一切是怎么发生的？中国共产党为什么能？中国为什么行？中国特色社会主义道...[Details]
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November 30, Shanghai - JD Power, the world's leading consumer insight and market research organization, and Tongji University's HVR Lab (Human-Vehicle Relationship Laboratory) jointly released resea...[Details]
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Today we will look at the forward and reverse control circuit of a DC motor. First, let's analyze the circuit diagram.
Circuit Diagram
Three parts
The circuit diagram is ...[Details]
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In modern production such as cement plants, level meters are often used to measure the actual height of materials in storage (silos), while level switches are often used to detect the high material...[Details]
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1 Introduction
With the continuous development of wireless communication and radar systems, the number of information subsystems carried on the same platform has increased. As the necessary channel...[Details]
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Abstract: Active power factor correction technology can greatly improve the utilization rate of electric energy, reduce line loss, reduce harmonic pollution of the power grid, and improve the quali...[Details]
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Semiconductor materials have undergone three changes since their development. The third-generation semiconductor materials are mainly wide-bandgap (bandgap width Eg 2.3eV) semiconductor materials rep...[Details]
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Laplace transform is an integral transform commonly used in engineering mathematics, also known as Laplace transform. Laplace transform is a linear transform that can convert a function with a real n...[Details]
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At present, almost every industry is trying to reduce energy costs. This demand has made LED technology one of the fastest growing and developing fields in recent years, and this trend is particula...[Details]
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The 51 MCU has 5 interrupt sources: 1. INT0 - External interrupt 0, introduced by P3.2 port, caused by low level or falling edge. The default priority is the highest 2. INT1 - External interrupt ...[Details]
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1 Introduction to GPRS Technology
GPRS (General Packet Radio Service) is a wireless packet switching technology based on the second-generation mobile communication system GSM. It is partic...[Details]
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The United States is planning a blanket ban on the use of Chinese-made software in self-driving and connected cars in the U.S., according to people familiar with the matter.
The Biden admini...[Details]
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Recently, the first PACK and the first batch of 162Ah batteries rolled off the production line at the Honeycomb Energy (Chengdu) Power Battery Manufacturing and Southwest R&D Base, located in the adva...[Details]
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