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Due to the impact of the COVID-19 pandemic, the overall mileage driven by the American people decreased by 13% in 2020, but the number of deaths caused by vehicle accidents increased by 8% that year....[Details]
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POL (P0int Of LOad) terminal matching power supply is widely used in high-speed signal ports such as memory and CPU. The port voltage can automatically track the voltage of 1/2 main power supply an...[Details]
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The ADS7845 touch screen controller used in personal digital assistants, pagers, portable instruments, etc. is a 12-bit sampling A/D converter with a synchronous serial interface and a low on-resista...[Details]
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AT (ldadr): defines the storage (load) address of this section.
Let’s look at a simple example:
SECTIONS {
firtst 0x00000000 : { head.o init.o }
second 0x30000000 : AT(4...[Details]
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The scientific PLC programming steps are actually very simple, but most engineers often think that it is simple and ignore many details. Ignoring details will inevitably lead to problems in the fut...[Details]
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The Note 10+'s brilliance has been largely taken away by models such as the iPhone 11 Pro and Huawei Mate 30, and continues to be eroded. The next round of counterattack can only wait for the ...[Details]
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OPPO presents two new super flash charging technologies and multiple flagship products at MWC 2022
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OPPO officially releases 240W Super Flash Charge technology, breaking the i...[Details]
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0 Introduction
IEEEl641 is a technical standard for test and signal definition. It provides users with the ability to describe and control signals, and allows users to choose their own operating sys...[Details]
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The nonlinear devices in the ship's power grid generate a large amount of harmonic current. This paper tests and analyzes the harmonic status of a certain type of ship's power grid, discusses sever...[Details]
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Batteries are an essential backup power source in the power system and there are many of them. Their service life and safety and reliability are of great concern to users. However, due to improper u...[Details]
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Biometrics is a technology that uses human biological characteristics to authenticate identity. It is currently recognized as the most convenient and secure identification technology. Since each pe...[Details]
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The Redmi K30S Extreme Commemorative Edition is officially launched today. The dimensions of the Redmi K30S are 165.1 x 76.4 x 9.3 mm and weighs 216 grams. The front and back are covered by Gorilla G...[Details]
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The circuit of this device is shown in the figure. The AC voltage output by the magneto is rectified by diodes D1~D6 and becomes a pulsating DC voltage, which is output in two ways. One way is a ty...[Details]
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introduction Through statistics of various failures in UPS maintenance work, we can draw the following conclusion: For backup UPS power supply , failures caused by batteries account for more t...[Details]
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From October 31 to November 1, the Global New Energy Vehicle Cooperation and Development (Shanghai) Forum (GNEV2024•Shanghai) hosted by the China Electric Vehicle 100 was officially held.
Wit...[Details]
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