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According to data from China Southern Power Grid, as of February 11, China Southern Power Grid has resumed work and started construction of 13 infrastructure projects, of which 5 main grid and powe...[Details]
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Introduction: American scientists have developed a lithium-sulfur battery using a carbonate electrolyte that can retain more than 80% of its initial capacity after 4,000 cycles. The team used a vapor...[Details]
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introduction Since its introduction, the switching power supply has become the main product of voltage-stabilized power supply with its excellent performance such as stability, high efficiency and e...[Details]
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In LED lighting applications using
AC-DC
power supplies, the building blocks of power conversion include discrete components such as diodes, switches (FETs), inductors, capacitors, and resistors ...[Details]
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In some DC/DC converters, on-chip cycle-by-cycle current limiting may not be sufficient to prevent failure during a short circuit. A nonsynchronous boost converter provides a direct path from the inpu...[Details]
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introduction
As people's enthusiasm for open source software grows, Linux, as a powerful and stable open source operating system, is increasingly favored by thousands of computer experts and e...[Details]
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There are three methods for treating urban domestic waste in China: landfill, incineration and composting. Among them, 80% is directly landfilled, but landfilling causes serious secondary pollution, ...[Details]
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An electrocardiogram (
ECG
or
EKG
) is used to measure the electrical signals of the myocardium over time and display the results in a graphical form. ECG applications range from simple hear...[Details]
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Electromagnetic flowmeter is a commonly used flow measurement instrument with the advantages of flexible use, stable performance, high reliability, easy maintenance, and high measurement accuracy. Wh...[Details]
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■ Origin of the problem In the section Capturing an oscilloscope network image, a method for automatically capturing a Tektronix oscilloscope network image with a Python program is given. However, in...[Details]
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Milliohm meter and multimeter for explosion-proof environment Metrahit 27EX Metrahit 27EX precision micro-ohmmeter is suitable for measuring low resistance contact resistance in explosive environment...[Details]
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Recently, Stratasys (Nasdaq: SSYS), a 3D printing and additive manufacturing solution provider, and Shanghai Kindly Medical Technology Co., Ltd. (Kindly Medical) officially signed a strategic coopera...[Details]
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The lighting equipment at civil airports are all visual aids. Although many aircraft are equipped with various advanced radio aids and instrument landing systems, these lights are still indispensable...[Details]
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With the development of communication technology, traditional analog walkie-talkies can no longer meet people's needs, and the digitization of walkie-talkies is imperative. The rapid development of...[Details]
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After launching the new version 8.0, WeChat seems to be gray-scale testing a new feature recently. According to some user feedback, in addition to "normal red envelopes" and "lucky red envelopes", th...[Details]
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