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1 Introduction The three-stage propellant tank of the Long March 3 carrier rocket is a cryogenic tank with a common bottom, which divides the tank into two independent parts: the liquid oxygen tank...[Details]
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When a base station supports multiple radio access technologies, the 3GPP Release 9 standard contains a series of documents on MSR (3GPP TS37 Release 9) and puts forward requirements for base station ...[Details]
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Japanese silicon wafer maker Shengco plans to raise prices on its long-term contracts with chipmakers by about 30% between 2022 and 2024 due to strong demand and tighter supply due to the Russia-Ukra...[Details]
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In the 800V vehicle system, the voltage increase leads to higher insulation requirements and short-circuit protection measures for the entire system. I think there are several core reasons for the tr...[Details]
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1. Touch screen controls the inverter through PLC
1. At present, the control of frequency converters in general needs to use PLC to communicate with the frequency converter, read the informati...[Details]
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An amplifier is a device that can amplify the voltage or power of an input signal. It is composed of electron tubes or transistors, power transformers and other electrical components. It is used in...[Details]
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The four I/O ports of the 8051 microcontroller are basically the same in structure, but each has its own characteristics. These four ports are all 8-bit bidirectional ports, each of which includes a ...[Details]
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According to Jiwei.com, as the manufacturing process of integrated circuits continues to shrink, the miniaturization of transistor structures has gradually become one of the important issues in the i...[Details]
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There is almost a consensus in the industry that lidar is one of the important hardware configurations for realizing the advanced intelligent assisted driving (ADAS) function of automobiles. Without ...[Details]
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1 Introduction
As one of the high-resolution radars, the millimeter-wave frequency-stepped radar is increasingly widely used due to its excellent range resolution. The process of using the inve...[Details]
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On January 15, local time, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) announced the development of a new lithium metal battery that charges and disch...[Details]
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Double 11 is coming! Crucial celebrates its 25th anniversary, and here are some great tips on selling many star products!
Shopping carnival, enjoyment never stops, Double Eleven i...[Details]
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Tesla is the undisputed leader in the direction of mass production of autonomous driving. Whether it is product definition, product naming, or the next stage of development direction, Tesla is lead...[Details]
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Common button batteries are classified into the following types according to their chemical composition: carbon, alkaline, zinc-silver oxide, zinc-air, lithium-manganese dioxide, nickel-cadmium rec...[Details]
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TechInsights released the "Automotive Industry Outlook 2025" report, pointing out that the automotive industry will present several transformative trends next year, including the rise of electric v...[Details]