HD74HCU04

(Reporter Li Yukun) The reporter learned from the Municipal Development and Reform Commission that there are only three regions in the world where electricity access is completely free, and Beijing...[Details]

On May 8, the well-known digital blogger @BZM Technology wrote an article about Xiaomi’s domestic offline layout, saying: "In the early years, Xiaomi started out in the Internet industry and took adv...[Details]

Seven-segment digital display 1. Seven-segment semiconductor digital display 2. Liquid crystal display Discussion: Commonly used display devices 2. Seven-segment display decoder 1. Pri...[Details]

Today, solar energy has begun to shine. In many countries, solar energy is the lowest-cost energy option, both from a household and commercial perspective. Even if external costs are no...[Details]

Multi-ring network The availability of PROFINET IO networks in star topology can be increased by using multiple rings. In a multi-ring configuration, multiple PROFINET lines (star t...[Details]

    Abstract: This article introduces the structure and working principle of an inference-controlled AC frequency-stabilized and voltage-stabilized power supply, and conducts a detailed analysis of ...[Details]

The float level gauge is mainly used for measuring the level of viscous, dirty, corrosive, flammable and explosive media and transmitting the level signal. As an ideal instrument for level measuremen...[Details]

The capacity of electrolytic capacitors is usually checked using the R×10, R×100, and R×1K ranges of a multimeter. The red and black test leads are connected to the negative pole of the capacitor res...[Details]

　　If this pace of small steps and fast progress can be maintained, China's small and medium-sized flexible AMOLED panels will soon be able to be used in the terminal market. However, the existing ap...[Details]

In 2019, the total installed capacity of power generation in China was 2,010.66 million kilowatts, a year-on-year increase of 5.8%; the total power generation was 7,325.3 billion kilowatt-hours, a ...[Details]

1. What kind of pressure should the transmitter measure: First determine the maximum value of the measured pressure in the system. Generally speaking, it is necessary to select a transmitter with a pr...[Details]

GM Executive Vice President Doug Parks said the company is developing batteries for electric vehicles that can last a million miles. At the recent online media conference on GM's electric vehicle b...[Details]

In 2017, the "Man vs. Machine Go" match, Alpha Go's victory was a turning point in people's understanding of computers. But what most people don't see is that behind Alpha Go's victory was 20,000 wat...[Details]

After the ultrasound was developed a few days ago, the accuracy can be improved to 1cm and then placed on the cart I made an ultrasonic obstacle shield. Now the car can track with photoelectric track...[Details]

ICP spectrometer is a large precision instrument. Generally, after signing the purchase contract, especially for imported instruments, there is a 3-4 month delivery period. During this period, some e...[Details]