Article archiving：20241214

1 Single target velocity measurement principle 1. Fourier transform: FFT transform converts the time domain signal into the frequency domain; the sine wave in the time domain produces a peak value in the frequency domain. Typically, signals in the frequency domain are complex (i.

Technical analysis of speed measurement principle of millimeter wave radar

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Under the strong planning and coordination of the central government, the patriotic camp was divided into left, center and right. All parties temporarily put aside their interests and conflicts and united to support the only candidate Li Jiachao. In the end, Li Jiachao received 1

Liang Wai-nuo: What challenges will Hong Kong's new chief executive face after taking office?

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Qianjiang Evening News·Hourly News Correspondent Sun Meiyan "When called upon, we can fight, and when we fight, we can win." Since the fight against the new crown epidemic, the Women's Hospital of Zhejiang University has responded to the call many times and devoted itself to the

Tibet comes to the rescue! A 10-member medical team from the Women’s Hospital of Zhejiang University went on an expedition to Tibet

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Mainly because the nucleus pulposus of the lumbar intervertebral disc has undergone varying degrees of degenerative changes. Under the action of external force factors, the annulus fibrosus of the intervertebral disc ruptures, and the nucleus pulposus tissue bulges, protrudes, an

Advantages of acupotomy in treating lumbar disc herniation

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August 25, 2022 is the sixth National Disability Prevention Day. The theme of this Disability Prevention Day publicity and education activity is "Popularizing Disability Prevention Knowledge and Building a Healthy China."

"Popularize disability prevention knowledge and build a healthy China" - August 25, 2022 is the sixth National Disability Prevention Day

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The spleen controls transportation and transformation. If the spleen and stomach are weak, transportation and transformation are poor, and the body's water content will be stagnant. Traditional Chinese medicine believes that saliva can moisturize facial features, skin, teeth, mus

Pulse rubbing, abdominal pushing, and chiropractic techniques will make your stomach feel better and better

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Old people often say that "the shape complements the shape". It is precisely because the pulp of walnuts looks like our brains, so eating them regularly will have a good brain-tonifying effect. So is this statement really based on evidence? Let’s take a look at it next. Why is it

Harvard University research shows that eating walnuts not only helps to replenish the brain, but also has this function

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Sometimes, some people often feel that their hands and feet are cold, as if they are in an ice cellar. Qin Gongfang asked why everyone feels that their hands and feet are cold?

Do you know the three reasons why women have cold hands and feet?

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When talking about the greatest scientist in human history, we have to mention the "scientific all-rounder" - Leonardo da Vinci. Seeing this name, I believe many friends think that Leonardo da Vinci is just a painter. However, in fact, Leonardo da Vinci was a representative figur

Is Leonardo da Vinci an "alien"? It left a lot of unsolved mysteries, and scientists went back 700 years to solve it.

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Yesterday, the news that Pelosi was about to visit Taiwan was all over the place. The current leader of the Democratic Party in the United States, Speaker of the House of Representatives of the United States Congress, and the third heir to the throne of the United States Presiden

Visiting Taiwan and provoking cross-strait tensions, what exactly does Pelosi want to do?

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So far, Russia’s special military operation against Ukraine has been going on for half a year. Six months later, the war is still in a stalemate. The military conflict in Donetsk has entered a fever pitch, and no one is willing to be the first to give in. Different from the past,

After the Russian army opened fire on Polish mercenaries, the Putin government remained silent, and the United States and Ukraine realized something was wrong

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On August 23, local time, "Nihon Keizai Shimbun" reported that in the draft budget request for fiscal year 2023 drafted by the Japanese Ministry of Defense, the budget request is as high as 5.5947 trillion yen, which is almost equivalent to 40.7 billion U.S. dollars, setting a re

Japan's defense budget has caused controversy. All new weapons are used to target China. There is a lot of information behind it.

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Not to mention, such a temperature really affects gaming. Especially for mobile phones, the temperature can easily exceed 50 degrees Celsius at high image quality, and it can reach almost 60 degrees Celsius even when charging while playing games.

Are mobile phone cooling back clips so popular? After buying the iQOO Jifeng Cooling Back Clip Pro, I fell in love with it

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In the last issue, we introduced the eight seats in the Senate that were most fiercely contested by the two parties in this year's midterm elections. 09 Florida Marco Rubio. Demings has a strong background. He worked as a police officer in Orlando for 27 years until he became the

"Decisive Battle 2022" mid-term election Senate election review (Part 2)

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Chinese Prime Minister Li Keqiang chaired the seventh plenary meeting of the State Council on May 20, and decided to appoint Li Jiachao as the sixth chief executive of the Hong Kong Special Administrative Region, who will take office on July 1, 2022.

Li Jiachao was appointed as chief executive on July 1

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