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0 Introduction
In the construction industry, evaluating wall cracks and ground cracks is an important indicator for evaluating housing quality. Since the traditional method of measuring cr...[Details]
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Resting heart rate gives you a good window into your health. So it’s no wonder we see so many wearable optical heart rate monitors on the market. These devices typically use photoplethysmography (P...[Details]
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Delta connection method for three-phase loads
The three-phase loads Zuv, Zvw, and Zwu are connected in a triangle and then connected to the power supply, as shown in Figure 3.10, to f...[Details]
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Researchers from Oak Ridge National Laboratory (ORNL) in the United States obtained carbon black from discarded automobile tires and appropriately adjusted its microstructural characteristics to ...[Details]
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Only use mdev to create device files. . . . . 1. For the usage of mdev, please refer to busybox-1.9.2/docs/mdev.txt. It has two uses: initializing the /dev directory and dynamic update. The follo...[Details]
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1. LED light source has high luminous efficiency
Comparison of luminous efficiency: Incandescent lamps and halogen lamps have a luminous efficiency of 12-24 lumens/watt, fluorescent lamps have...[Details]
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The radar level meter uses continuous vibration measurement, and can measure the level of liquid and solid (block, powder) materials. It has the characteristics of long distance measurement and high ...[Details]
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1. Introduction
Due to the special working environment of coal mine production, the production process is more dangerous and unsafe than the general industry. With the continuous increase in c...[Details]
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congatec, a leading provider of standard and customized embedded computer motherboards and modules, today launched ten COM Express Type 6 modules with the latest Intel embedded processors. The proces...[Details]
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At 8 o'clock tonight, Huawei officially released the Mate 30 series in Munich, Germany. Yu Chengdong said that it uses the Kirin 990 series processor. This is the second generation of 5G mobile phone...[Details]
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1. Introduction
In power systems, it is often necessary to measure the phase difference between voltage and current, and sometimes it is also necessary to measure the phase relationship between ...[Details]
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Modern electronic component assembly requires a more stable soldering temperature in the tin furnace, and the difficulty of high temperature control of the tin furnace is also increased. With the c...[Details]
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9. When making all for the first time, the following error occurs. From the above error, it can be seen that CAMDIVN is not defined in the structure, so we need to find the place where this...[Details]
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The 2023 Annual Academic Conference of the Chinese Rehabilitation Medicine Association and the International Rehabilitation Medical Industry Expo will be held at the Beijing National Conference Cen...[Details]
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After power on, the oscillator starts to oscillate, and the output VF signal is transformed and shaped by the RS trigger to generate a rectangular pulse excitation voltage that maintains the original...[Details]
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