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The three major A-share indices closed down today, with the Shanghai Composite Index down 2.30%, the Shenzhen Component Index down 3.81%, and the ChiNext Index down 4.98%. The two markets had a total...[Details]
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Mplab x ide v_4.05 usage 1Setup standard project a.open the maplab x ide file - in the menu bar. b.wizard steps a.choose project “standard project” b.device type “PIC24HJGP306” c.select tool ...[Details]
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1. Proteus circuit
2. msp430 program
#include msp430x23x.h
#define uint unsigned int
#define uchar unsigned char
/
Function: void delay_1ms(void) void delay_nms(uint n)
Function: ...[Details]
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Grounding resistance is the resistance encountered when the current flows from the grounding device into the earth and then flows through the earth to another grounding body or spreads to a distant p...[Details]
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Rohde & Schwarz leads the industry in the number of 5G NR protocol conformance test cases
At the GCF CAG#72 meeting held in October 2022,
Rohde & Schwarz (R&S) submitted the late...[Details]
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A connector is an electromechanical component that connects a conductor (wire) to an appropriate matching component to connect and disconnect a circuit. In China, it is also called a connector, plug,...[Details]
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Environmental noise monitoring is an important part of improving the quality of life and strengthening environmental protection. In the busy streets and residential areas of major cities, large env...[Details]
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The reporter learned from the State Grid today (4th) that as of now, all 9 ultra-high voltage transmission channels under construction have resumed work and are being accelerated. The annual invest...[Details]
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1. Introduction The static display system of digital tubes needs to occupy too many single-chip microcomputer lines, but it can ensure normal brightness. In order to solve the problem of occupying to...[Details]
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Abstract: The small signal mathematical model of the Buck circuit in continuous current mode is established, and the loop design problems under voltage mode and current mode control are analyzed ac...[Details]
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How to use voltage regulator to change voltage higher than 250V to 220V
When the input voltage is slightly higher than the rated voltage of the voltage regulator, but less than...[Details]
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On January 2, according to the CNNC official account, on December 29, 2023, CNNC's 230MeV superconducting proton cyclotron and treatment end passed the acceptance technical test. This means that CN...[Details]
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Activation myth of new batteries: New batteries should be activated by cyclic charge and discharge.
The truth: To be precise, the above statement is not a rumor. There is a time difference be...[Details]
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LED dot matrix screen has strong luminous brightness and good indication effect. It can produce moving luminous pictures and texts, which are more likely to attract people's attention. It has a large...[Details]
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Huacan Optoelectronics, formerly Wuhan Huacan Optoelectronics Co., Ltd., was founded in 2005 and restructured into a joint-stock company in 2011. Huacan Optoelectronics is a leading domestic supplier...[Details]