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Under the epidemic, "classes are suspended but learning continues", and online classes, electronic textbooks, and cloud learning have all "made their debut". In such "dazzling" days, people's demand ...[Details]
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Today's closed-loop automatic control technology is based on the concept of feedback to reduce uncertainty. The elements of feedback theory include three parts: measurement, comparison and executio...[Details]
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Looking ahead to economic recovery and mapping the future of re-globalization Yesterday, the 2022 BRICS Business Forum, chaired by Chinese Vice Premier Hu Chunhua, was successfully held in Beijing...[Details]
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During the debugging of the smart car, since the circuit board is a self-made PCB circuit board, there is a problem of low reliability. At the same time, during the debugging process, human operati...[Details]
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On June 6 this year, the Ministry of Industry and Information Technology issued 5G licenses to China Mobile, China Telecom and China Unicom, marking the arrival of China's 5G era. At the same time, a...[Details]
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Starting from Linux 2.6, a new set of driver management and registration mechanisms have been introduced: platform_device and piatform_driver. (platform represents platform); the device is represente...[Details]
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With the iterative upgrade of automobile human-computer interaction, the display screen has become an important component of automobile human-computer interaction. The traditional multi-screen small ...[Details]
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The accuracy, structure, brand and intelligence of a digital multimeter determine the price difference. The price of digital multimeters currently sold on the market ranges from a dozen yuan to tens o...[Details]
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The monolithic integrated FM transmitter circuit composed of MC2831A and peripheral components is shown in the figure. The operating voltage of MC2831A is 3~9V. The frequency of the crystal SJT is ...[Details]
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Use STC89C52, 74hc138 to drive the columns, 74hc595 to drive the rows , 8x8 dot matrix display problem. Want to display arrows, ....... Reward points : 30 Solved time: 2010-12-10 08:58 //= ... Th...[Details]
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1 Introduction The application of sinusoidal pulse width modulation and variable frequency speed regulation technology in the field of industrial control is becoming more and more extensive. Many po...[Details]
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Samsung Electronics continues to produce LCD panels. In this regard, Xie Qinyi, senior research director of Omdia's display department, said that SDC mainly supplies Samsung LCD TVs, which has little...[Details]
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According to the report, according to the public information of the UK National Crime Agency (NCA), on March 12, 2017, Kerem Albayrak sent an email to Apple's security team, claiming that he ha...[Details]
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I believe everyone is familiar with conductors and insulators. Conductors refer to objects that are easy for electricity to flow (metals, etc.), and insulators refer to objects that are difficult for...[Details]
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On October 30, the second batch of enterprises settled in Yibin Energy Storage Industrial Park held a centralized start-up event. Municipal Party Committee Secretary Fang Cunhao attended and announced...[Details]
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