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In 2024, when the new energy security strategy was proposed for ten years, we will gather strength from all sides and absorb energy from the earth's core. Hami is located in the eastern part of Xinjia...[Details]
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Second-order infinite gain multi-feedback Chebyshev high-pass filter design table
Normalized circuit component values (KΩ)
Ripple height
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The aluminum alloy bodies of some iPhone 12 models have begun to fade, according to a new report from Svetapple.sk, which includes photos of a PRODUCT (RED) iPhone 12 model that has become noticea...[Details]
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In order to achieve uniform display effect of OLED and solve the cross effect, the structural characteristics of OLED and the driving characteristics of passive OLED devices are first analyzed, a...[Details]
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In some DSP systems running offline, user code needs to be automatically loaded and run after power-on. The boot load of the DSP system means that when the system is powered on, the DSP transplants...[Details]
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First test the LED lamp's light source solder joints for any potential dangers such as cold solder joints or false solder joints that may affect the normal operation of the lamp. When using a non-i...[Details]
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According to news on January 31, Huawei recently held a press conference on the top ten trends in smart charging networks in 2024 with the theme of "Let there be high-quality charging wherever there ...[Details]
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Battery calibration reminder Sina Digital News reported on the morning of April 1 that the iOS 14.5 beta version (beta6) released early this morning introduced a new feature for recalibrating the...[Details]
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Humidity-sensitive capacitors are generally made of polymer film capacitors. Common polymer materials include polystyrene, polyimide, and acid acetate. When the ambient humidity changes, the dielec...[Details]
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Foreign media 9to5 Mac reported that HomePod is about to reach a month as Apple's discontinued product. Unlike the iMac Pro, which disappeared from Apple's official stores within 13 days, the w...[Details]
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Recently, the research organization GTM Research counted the shipment of solar inverters in the United States in 2014. The top three manufacturers accounted for nearly 60% of the market, namely the...[Details]
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Take USART3 as an example, (1) First, enable the DMA module in and add stm32f1xx_hal_dma.c to the project. (2) Add the following declaration to the header of main.c UART_HandleTypeDef huart3; ...[Details]
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Moxibustion is a traditional Chinese medicine that treats diseases by applying heat to specific parts of the human body. Moxibustion has the following effects: First, applying moxa sticks made of m...[Details]
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It’s too hot! How can Guangdong be so hot in summer? It’s not just Guangdong that’s hot in summer. Many places are very hot in summer, and high temperature warnings have been issued. Faced with suc...[Details]
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On October 23, the Anhui Provincial Department of Industry and Information Technology issued an announcement to solicit public opinions on the "Anhui Province New Energy Storage Promotion and Appli...[Details]