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Introduction The basic interactions that occur between particles in solution and the wafer surface are van der Waals forces (molecular interactions) and electrostatic forces (double-layer interactions). In recent years, research related to the particle adhesion mechanism on the w
Particle adhesion and removal from wafer surface during Valincona RCA cleaning
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How much kinetic energy is needed to make a large medical equipment that weighs about 6 tons and generates a gravitational magnetic field about 60,000 times the earth's gravity operate in an orderly manner? Gradient power amplifier (GPA) 01 The "engine" of magnetic resonance. The
Read it in one article | Revealing the secrets of magnetic resonance principles
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Lithography consisted of HMDS vapor primer at 140°C, 5 kRPM coating for 2.2 µm film, and a 90 second soft bake at 115°C, performed on a Microtec ACS200 coating/developing track.
Wet etching and photolithography at Warincona
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The world's most expensive telescope, the James Webb Space Telescope (JWST), finally sent back its first photo. To be precise, the JWST team released the first five sets of space images. The details of the images are clear, extremely shocking and impressive. . No wonder some peop
Is the universe really that beautiful? The Webb telescope only takes "black and white" photos, and the color depends on P
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On July 12, local time, the National Aeronautics and Space Administration (NASA) officially released a batch of full-color photos taken by the James Webb Space Telescope. They are the first images released by the James Webb Space Telescope more than half a year after its launch.
Eco Headlines | Beautiful! The first full-color photos taken by the Webb Space Telescope released
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The largest dinosaur database on the Internet, spanning 50 million years ago, explores how dinosaurs lived at that time. The content on the website was jointly created by more than 20 archaeologists, telling the story of dinosaurs in different periods and regions.
90% of people don’t know about these niche websites. After reading this, I regret not knowing about them earlier.
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However, unrelieved pain or continuous stimulation of nerves can lead to damage to the central nervous system mechanism and promote chronic pain syndromes, causing patients to suffer.
Gut microbes also play role in differences in pain perception between men and women, study finds
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The Amazon rainforest is known as the lungs of the earth. It is the largest tropical rainforest in the world. The Amazon River flows through the rainforest, bringing more creatures to the already colorful tropical rainforest, such as giant trees tens of meters high. and anacondas
In 2019, a humpback whale carcass was discovered in the Amazon rainforest, confusing biologists.
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NASA's Lunar Autonomous Positioning System Technology Operations and Navigation Experiment spacecraft successfully completed its second trajectory correction maneuver beginning around 11:30 a.m. ET on Tuesday.
NASA CAPSTON completes second trajectory correction: will further improve the path to the moon
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There are always all kinds of strange things in the world, just like the Charming Lake in our country. There has always been a mystery about Charming Lake. If you stand by the lake and speak loudly, the originally sunny lake will suddenly become covered with dark clouds and start
The lake that can "call for wind and rain" is really so "obedient"! Expert: Theoretically yes
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General relativity, introduced in 1915, is a geometric way of thinking about gravity. Soon it became one of the most popular and successful theories. But it is not a perfect theory, and there are even problems that even Einstein could not solve. General relativity might not have
Mathematics Giantess - Amy Noether, the creative genius who saved the theory of general relativity
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When it comes to aliens, one image pops up in many people's minds - the Gray Man. This should be the most classic skin of aliens. So, why are humans so sure that aliens look like this? The image of the gray aliens originated from the Roswell incident in the United States in the 1
In what way do aliens exist? Can’t understand it with human cognitive abilities?
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The remains of five prehistoric creatures have been discovered in Siberia. They are all animals from the Ice Age. Due to long-term preservation in cold areas, the bones and flesh of these creatures are still there, and DNA can even be extracted from them. However, the places wher
Humans must be wary? Siberian permafrost melts, remains of 5 prehistoric creatures discovered
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Generally speaking, existing species should be able to be deduced according to the laws of evolution. Species evolution According to Darwin's theory of evolution, the traits of species are produced in the long-term dynamic evolution process. Scientists who share Darwin's views be
Are turtles the ultimate bug in evolution? How to become a "nightmare" for scientists?
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On July 12, 2022, Beijing time, the Webb Space Telescope released the first batch of stunning infrared full-color high-definition astronomical photos as scheduled, including the Great Carina Nebula 8,500 light-years away from the Earth and the galaxy cluster SMACS 7023 4.6 billio
The Webb Telescope releases the first color photos, light from tens of billions of light-years away comes to Earth for the first time
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If you were asked, who could you name the earliest astronomer who contributed to world astronomy? The earliest astronomers were Gan De and Shi Shen during the Warring States Period in China BC. Gan De was from the Qi State, and Shi Shen was from the Qi State. People from the Wei
If someone asked for the name of an astronomer, who could you name?
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Hot searches on Weibo are almost ruined. The old slogan - "Discover new things anytime, anywhere". Now? Netizens joked - you can discover new children, new fathers, new mothers, new trash anytime and anywhere... No matter how small a celebrity or internet celebrity is, no matter
A "low-level guy" who refused an annual salary of 550,000 yuan quickly became a hot search topic and then quickly disappeared.
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Former world heavyweight boxing champion "Mike Tyson". In the early days, he was not only very kind to his friends, but also very friendly to his girlfriend. He spent $500,000 on his new girlfriend before she even knew her name.
Do you think boxing champion Tyson’s girlfriend is happy? wrong! These girlfriends were all subjected to domestic violence by Tyson
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Recently, Taiwan's self-produced "high-end" vaccines have only been recognized by four countries in the world. As a result, people who take "high-end" vaccines need to take two additional doses of internationally certified vaccines if they want to travel to the United States, Jap
Is it finally time to settle the ledger? A fierce "controversy" broke out on the island, and Chen Shizhong's 10 most "golden sentences" were bombarded
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Taiwan's public opinion organization, the Social Welfare and Health Environment Committee, reviewed the budget of the health and welfare department on the morning of the 22nd. Chen Shizhong responded to the media before the meeting and said that regarding the phrase "what else",
Fake apology: Is Chen Shizhong an unprecedented political wizard?
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#成风波波# (1) Erythrina crista-galli, a genus of Erythrina crista-galli in the Fabaceae family, has recently come into bloom again. Strings of red flowers hang on the treetops. If you look closer, you will find that they look a bit like cockcombs, and the largest petal is actually i
The beautiful blooming of flowers and plants always brings people a different visual feast
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Comprehensive news: According to statistics from Johns Hopkins University, as of 13:33 on the 15th, Beijing time, there were a total of 521,128,871 confirmed cases and 6,263,321 deaths worldwide.
The cumulative number of confirmed cases in Canada exceeds 10% of the total population, and the cumulative number of deaths from COVID-19 in Japan exceeds 30,000
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