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In a way, its low margins make it more profitable. Amazon skeptics have long repeated a common refrain: The e-commerce giant isn’t making money, the razor-thin profit margins it uses to crush compe...[Details]
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1. System Overview The modules used in the system include AT89C51 microcontroller + LCD1602 display screen + Hall speed measurement module. This design uses the 51 microcontroller as the core control...[Details]
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From electric cars to drones, batteries have always struggled to strike a good balance between energy density and their own weight. However, scientists at Chalmers University of Technology have been...[Details]
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On May 9, the 2019 World Ultra High Definition Video ( 4K / 8K ) Industry Development Conference was held in Guangzhou. The conference was co-hosted by the Ministry of Industry and Information Te...[Details]
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1.DMA(Direct Memory Access) That is, direct memory access. The DMA transmission method does not require the CPU to directly control the transmission. It opens a direct data transmission path for RA...[Details]
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1 Introduction
In recent years, digital signal processor (DSP) chips have been widely used in automatic control, image processing, communication technology, network equipment, instrumentat...[Details]
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This year, China's LED industry is unusually "busy": there are news about the launch and production of new LED projects, as well as news about the withdrawal of enterprises, and even news about the...[Details]
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International Energy Network/Photovoltaic Headlines (PV-2005) learned that on April 15, the winning candidates for China National Nuclear Corporation's 2024 inverter centralized procurement were an...[Details]
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In recent years, driven by the demand for data communications and the rapid development of related electronic technologies such as semiconductors and computers, short-range wireless and mobile comm...[Details]
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1. Ultrasound Bats and some marine animals can use high-frequency sounds for echolocation or information communication. They can emit ultrasonic waves generated from the throat through the mouth or n...[Details]
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The widespread use of electronic energy-saving lamps has brought new changes to people's daily lives, and has also brought a large number of energy-saving lamps that have been worn out. According to ...[Details]
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For decades, the automotive industry has strived to personalize the listening experience for each passenger. However, the varying acoustic properties of a vehicle cabin make such personalized sound z...[Details]
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On December 28, Changhong announced that the first batch of complete refrigerators equipped with its self-developed intelligent control MCU chip were successfully rolled off the production line in Ch...[Details]
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Near Field Communication (NFC), also known as short-range wireless communication, is a short-range high-frequency wireless communication technology that allows electronic devices to exchange data ...[Details]
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The soft-start thyristor voltage regulator circuit is a power electronic technology widely used in the industrial field. It controls the conduction angle of the thyristor to achieve smooth starting...[Details]