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In the past year, the global economic weakness and the industry development cycle have caused the overall growth rate of the LED lighting industry to decline, and the export growth rate has also decl...[Details]
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Fluorescent tubes are widely used in daily life, such as supermarkets, schools, offices, subways, etc., and in any public place you can see them in large quantities! How to make the service life an...[Details]
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When purchasing a steam flow meter, the first aspect we need to pay attention to is the price. Generally speaking, you can see the quotation sheets of different manufacturers on the Internet, so that...[Details]
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1. The instruction format of the left shift of register f with carry bit (C) is: RLF f. d Where d=1, result → f; d→0, result → w. The function is shown in the figure below. 2. Shift right the con...[Details]
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The memory market situation is unclear. Regarding the memory price fluctuation trend, Gou Jiazhang, general manager of memory control chip manufacturer Silicon Motion, said that it is estimated that ...[Details]
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1. Introduction Modern fisheries mainly use fish finders to detect the distribution of underwater fish resources and increase the output of the fishing industry. Fish finders use the principle of ult...[Details]
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Nowadays, since the signals output by various sensors are mostly weak voltage signals, the measuring instruments need to amplify these weak voltage signals through amplifiers and then connect them to...[Details]
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UCLA researchers have developed a new mobile phone accessory that turns any smartphone into a DNA-scanning fluorescence microscope. The innovation is expected to have a profound impact on medical di...[Details]
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From June 25 to 27, the Zhejiang Provincial College Students' Engineering Practice and Innovation Ability Competition was successfully held at Zhejiang Water Resources and Hydropower University. The ...[Details]
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In the process of PCB copying and PCB design, due to the different data or file formats between different software platforms, it is often necessary to use other tools to convert the platform or fil...[Details]
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At the Xiaomi 11 launch conference, Lei Jun said that in response to Apple's call for environmental protection, the Xiaomi 11 standard version is priced at 3,999 yuan, and the charger and data cable ...[Details]
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According to PCWorld, a Microsoft spokesperson said in a statement that it will continue to provide Microsoft software updates to customers of Huawei devices. With the US government imposing a ban ...[Details]
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The basic AVR hardware circuit includes the following parts:
1. Reset circuit
2. Crystal oscillator circuit
3. AD conversion filter circuit
4. ISP download interface
5. JTAG emulation inter...[Details]
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What is PSRR? PSRR (Power supply rejection ratio), also known as power supply rejection ratio, is an important parameter to measure the circuit's suppression of ripple in the input power supply. It i...[Details]
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A few days ago, foreign media 91Mobile and GalaxyClub provided two independent quotes for the Galaxy S21 series, with a starting price of 849 euros. Today, German technology media WinFuture.de ...[Details]