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The passage of laser pulses through non-uniform media is the most important process, and the control ability determines the efficiency of optical communication. Unfortunately, it is often impossible to model it mathematically. However, you can teach a neural network to predict it
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China has a 200 billion anti-corrosion coatings market. Judging from the regional distribution of heavy-duty anti-corrosion coating manufacturers, Guangdong, Jiangsu, Shandong, Hebei, Liaoning, Hubei and other places have relatively large numbers of heavy-duty anti-corrosion coat
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NASA has blocked a Boston auction company from selling lunar dust collected during the 1969 Apollo 11 mission and cockroach carcasses that scientists used for subsequent experiments, and returned the materials to NASA. The Apollo 11 mission brought back more than 21.3 kilograms o
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1. Kingfisher skeleton. The kingfisher's food is mainly fish, and it also eats crustaceans and a variety of aquatic insects. It can use its thick beak to drill holes in the earth cliffs to make its nest. 2. Giant toad. 3. Very rare blue bees. 4. The black beauty of the genus Iron
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Researchers such as Ma Qiufu of Harvard Medical School recently published a Nature article and found that a sensory nerve deeply enriched in the corresponding position of "Zusanli" in mice mediates this process through the vagus nerve-adrenal axis.
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In this life, people are always seeking independence, but they have to establish various relationships with other people. This seems to be the fate that humans are destined to have since birth. The relationship between parents and children is the most primitive and multi-dimensio
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With the successful launch of the Shenzhou 14 spacecraft, astronauts Chen Dong, Liu Yang, and Cai Xuzhe successfully entered the Tianhe core module and began their six-month on-orbit work and life. At this time, many friends will be curious. Astronauts live in orbit for up to hal
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Small body, strange colors! In the large fish tank, they swing their bodies happily and freely, and their round eyes seem to be looking at this strange world. This is the cute little elf-goldfish. Many people like to raise goldfish. It is not just a hobby, but this little elf see
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The results show that the SSH windows have a visible transmittance of 42% and a photoelectric conversion efficiency of 0.75%, and a photothermal conversion efficiency of 24% and allow the ventilation air temperature to rise to 10°C.
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Sources | A foreign netizen photographed in the video said that objects should be weightless in space. However, when teaching in space on the China Space Station, the water in the water cup remained as stable as on the ground and did not float out individually.
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Recently, citizens in Nanning, Guangxi, discovered some giant snails in a park. They were identified as giant African land snails (Lissachatina fulica) - a delicacy on the plate, but one of the most harmful snails in the world. The delicious giant African land snail from Africa i
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Nursing | Good news! Xue Danping, a nurse who made an appointment online at the New District Central Hospital, won the first prize in the "Welcome the 20th National Congress of the Communist Party of China to Follow the Party" scientist spirit presentation competition on behalf o
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The earth has a long history of 4.6 billion years, and during this long period of time, the earth has given birth to different life forms in different eras, and various creatures are constantly fighting. The fittest will survive, and the powerful creatures will become the overlor
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The picture comes from the Internet. Human immunodeficiency virus has an "early and massive" effect in promoting the aging of infected people since infection. Within two to three years after infection, human immunodeficiency virus accelerates normal aging-related biological chang
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Author: Pang Zhimin First of all, let me summarize what thinking is: ① Thinking originates from the subject's processing of intentional information, and human thinking is the process of processing intention-information content by one's own mind. ②Any thinking is based on reasonin
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It is said that she had no time to take away 3,000 pairs of shoes and more than 100 kilograms of jewelry when she was in exile. Her mother Remedios was her father's second wife. They had five children in total, and Imelda was the eldest daughter.
Yimeidai: From beauty pageant champion to the most greedy first lady in history, she owns more than 3,000 pairs of shoes alone
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The 1986 Ersa People Power Revolution forced the Marcos family to leave the presidential palace and repeatedly inculcated the corruption and human rights violations committed by the old Marcos government during its time in power.
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It was 1974, when Marcos Jr. and his mother Imelda visited Beijing. The mother and son had a pleasant chat with China's supreme leader. Mao Zedong even kissed his mother's hand and hugged each other when they left.
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A few years ago, when the name of Imelda Marcos was mentioned in the world's fashion industry, it was really known to everyone. Even an ordinary beauty-loving woman would be envious and jealous of Imelda. . Imelda Imelda (also translated as "Imelda") was born in July 1929 in Mani
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According to "Philippine World Journal", on May 15, Philippine President-elect Ferdinand Romualdez Marcos released a latest video through social media YouTube. He expressed his gratitude to all Filipino people and supporters and promised to govern. You will never be disappointed
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On June 16, Philippine President Duterte said in a speech that it would be a "good idea" for him to run for vice president after his presidential term ends next year. It was Duterte's most explicit response yet on whether he would seek the vice presidency. "A lot of people are pu
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