Monthly Archives: December 2024

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CCTV reporters learned that on July 15, local time, former U.S. President Trump announced at the Republican National Convention in Milwaukee, Wisconsin that Ohio Senator James David Vance (JDV) would serve as his vice presidential candidate. Participate in the 2024 presidential election.

James David Vance was born on August 2, 1984 in Middletown, Ohio. He served in the U.S. Marine Corps, is a writer and venture capitalist, and was elected to the Republican U.S. Senate in 2022. (CCTV reporter Liu Xiaoqian)

Related reports:

The US Republican Party officially nominated Trump as its presidential candidate

On July 15, local time, at the Republican National Convention of the United States in Milwaukee, Wisconsin, a Republican representative announced that Trump would participate in this year’s U.S. presidential election as the Republican presidential candidate.

Subsequently, at the Republican National Convention, former U.S. President Trump received enough Republican delegate votes and was officially nominated as the party’s presidential candidate in the 2024 general election. (General reporter Liu Xiaoqian)

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According to a Reuters report on July 16, two Iraq military sources told Reuters that two armed drones attacked an air base in western Iraq where US military and other international troops were stationed on the 16th.

Reported that this is the second attack on U.S. troops stationed in Iraq since early February.

Sources said there were no reports of casualties. An Iraq officer said defense systems shot down a drone near the base.

In April, two drones were shot down near the base, according to a U.S. official.

According to reports, an Iraq army officer said the Iraq army has stepped up patrols around the base to prevent further attacks.

The report said a senior Iraq military delegation is expected to visit Washington in a week to continue negotiations on ending the U.S. -led coalition operations in Iraq.

Washington and Baghdad began negotiations in January to reassess the withdrawal of the U.S. -led coalition from Iraq. The coalition was formed in 2014 to help fight the Islamic State group that then occupied most of Iraq. (Compiled by Guo Jun)

　　Flexible printed circuit boards (PCBs) have become a vital component across various industries, from consumer electronics to automotive, aerospace, and industrial applications. But how much does a flexible PCB actually cost? In this blog, we will dive into the key factors that influence the cost of flexible PCBs, helping you understand the price dynamics and how to manage costs effectively.On the other hand, Flex PCB manufacturer It also brings tangible benefits to everyone and feels useful. It is a model of the industry. https://gekunflex.com/

　　Introduction to Flexible PCBs

　　Flexible PCBs, also known as flex circuits, offer a range of benefits, including space-saving designs, lightweight structures, and excellent durability. These features make them highly sought-after in industries like electronics, automotive, and aerospace. However, when it comes to determining the cost of flexible PCBs, several factors come into play, from material choices to the complexity of the design.

　　Key Factors Influencing Flexible PCB Prices

　　The cost of flexible PCBs can vary significantly depending on multiple aspects, making it essential to understand the main drivers behind pricing. These factors include material selection, production complexity, order volume, and even the supplier¨s location.

　　Material Selection and Its Impact on Price

　　One of the most crucial factors in determining the price of a flexible PCB is the type of material used. Flexible PCBs typically use polyimide or polyester substrates, with polyimide being more expensive due to its superior thermal stability and flexibility.

　　Polyimide (PI): More expensive but offers excellent heat resistance and mechanical properties. Ideal for high-performance applications in aerospace or automotive sectors.

　　Polyester (PET): Less expensive, mainly used in cost-sensitive applications where extreme heat resistance is not required.

　　Conductive materials like copper can also affect costs. Thicker copper layers offer better performance but come at a higher price. The choice of adhesive or overlay materials can further add to the final cost.

　　Manufacturing Process and Complexity

　　The complexity of the design directly impacts the price of flexible PCBs. Multilayer boards, rigid-flex designs, or intricate patterns require more time, expertise, and advanced machinery to manufacture, which increases costs. Single-layer PCBs, by contrast, are relatively simple to produce and thus less expensive.

　　Key factors that affect manufacturing costs include:

　　Number of layers: More layers add complexity and cost.

　　Trace width and spacing: Tighter tolerances increase manufacturing difficulty.

　　Component mounting: Flex PCBs designed for specific components or connectors may require additional labor or special processes, driving up prices.

　　Flexible PCB Cost

　　Volume and Production Scale

　　Another significant price determinant is the order quantity. Large production runs benefit from economies of scale, which reduces the per-unit cost. On the other hand, small or custom orders will typically have a higher unit price due to setup costs and lower material volume discounts.

　　Prototypes and low-volume orders can be more expensive per unit because manufacturers need to dedicate time and resources to creating a unique setup. However, once production reaches a high volume, the overall price can decrease significantly.

　　Supplier Location and Its Influence on Pricing

　　Geographic location also plays a role in flexible PCB pricing. For example, manufacturers based in China or other regions with lower labor costs may offer more competitive pricing. However, this should be balanced against quality considerations and shipping costs.

　　In some cases, choosing a local supplier may save on transportation time and costs, while international suppliers may offer better prices but with longer lead times.

　　Why Choose Gekun for Your Flexible PCB Needs?

　　At Gekun, we specialize in providing high-quality flexible PCBs at competitive prices. We understand the importance of balancing cost, performance, and reliability, especially for industries like electronics, automotive, and aerospace. Whether you need single-layer flex circuits or complex rigid-flex designs, our team ensures that you receive the best product at the best price.

　　Flexible PCB Cost-1

　　Gekun¨s advantages include:

　　State-of-the-art manufacturing facilities.

　　Expert engineering support.

　　Flexible pricing options for both low-volume prototypes and large-scale production.

　　On-time delivery and exceptional customer service.

　　The price of a flexible PCB is influenced by various factors, including material selection, manufacturing complexity, order volume, and supplier location. Understanding these factors helps in making informed decisions to manage costs effectively without sacrificing quality.

　　When you choose Gekun as your flexible PCB supplier, you¨re not just getting a product; you¨re partnering with an industry leader committed to providing top-tier solutions at competitive prices. Contact us today to learn more about our flexible PCB offerings.

　　By keeping your specific requirements in mind and choosing the right supplier, you can optimize both the cost and performance of your flexible PCB.

　　Rolex watches, as a representative of luxury goods in the watch industry, are not only sought after by watch fans all over the world for their accurate timekeeping and unique design, but also the polishing technology of their movements is amazing. Among many complicated mechanical parts, the movement is the soul of the watch, which drives the whole mechanical system like a heart. So, how is the movement of Rolex watches polished? Next, let’s unveil this mystery.To some extent, aquanaut 5167 Our development has surpassed many peer businesses, but it has never stopped moving forward. https://finewatchcare.com/products/fwc-for-patek-philippe-5167-watch-protection-film?_pos=1&_sid=01bb96ae9&_ss=r&variant=46836495384863

　　Preparation before grinding

　　Before starting to polish the movement, it is necessary to ensure that the working environment is clean and dust-free. After all, any tiny dust may cause irreversible damage to the precise movement. Then, it is very important to choose the right tools and materials. The polishing tools used in Rolex watch movements are often customized by hand, and each tool has its specific function and shape to meet the needs of different parts.

　　Fine hand grinding

　　The polishing process of Rolex movement is a delicate and artistic process. Craftsmen use abrasives and files of various shapes to slide gently on the metal surface, and control the angle and strength of each knife and contact through delicate touch. This is not only a technical activity, but also an artistic expression of the ultimate pursuit of details.

　　Grinding and polishing

　　After completing the basic shape correction, the next step is grinding and polishing. Grinding is the process of grinding the surface more smoothly, while polishing is to increase the gloss and aesthetics of the surface. This stage requires great patience and skill, because excessive pressure or improper operation may lead to surface damage or deformation.

　　High precision detection

　　After the polishing work is completed, it is not a once-and-for-all thing. The next series of high-precision detection links are very important. Through professional instruments and equipment, the performance indexes of the movement are tested to ensure that every part meets the strict standard requirements of Rolex.

　　Assembly and adjustment

　　The last step is to assemble the polished parts and fine-tune them according to the requirements to ensure the best performance. This process also tests the skills and experience of craftsmen.

　　For Rolex watches, every watch is a unique work of art. And its incredibly precise internal movement is the soul of these works of art. Through the process of careful polishing and assembly, not only the watch is endowed with the ability to accurately walk, but also every wearer can feel the unique charm of time flow.

　　In short, in Rolex’s world, “polishing” is not just a simple word, it represents the spirit of unremitting pursuit of quality, meticulous attention to details and understanding and expression of time art. Behind every accurate walk, there are countless ingenious efforts and efforts.

　　Into the mysterious space world, let’s explore the mysteries of the universe together! Today, we are going to learn some interesting space knowledge with the children and pay tribute to China Space! ? ?In order to facilitate users to have a better experience, 太空探索 Many attempts have been made to upgrade the products, and the results are also very good, and the market performance tends to be in a good state. https://www.zhanmeng.net/

　　Launch vehicle: this is a magical tool to push all kinds of spacecraft into space, including artificial earth satellites, manned spacecraft, space stations and interplanetary probes.

　　Man-made earth satellites: These unmanned spacecraft fly around the earth, and they are the spacecraft with the largest number of launches, the widest use and the fastest development.

　　Manned Spacecraft: Designed for astronauts to ensure their life and work in outer space, it can be divided into satellite manned spacecraft, moon manned spacecraft and interplanetary manned spacecraft.

　　Space station: A manned spacecraft that runs in low earth orbit for a long time and can be used by many astronauts to live and work.

　　Space probe: used to detect the moon and celestial bodies outside the moon, including the lunar probe and planetary and interplanetary probe.

　　Astronauts’ life in space: how to drink water, go to the toilet, sleep and take a bath in weightlessness.

　　China’s first space flight: from Dongfanghong-1 to Chang ‘e-5, reviewing the important historical moment of China’s space flight.

　　China lunar probe: From Chang ‘e I to Chang ‘e V, learn about China’s achievements in lunar exploration.

　　China Mars probe: Tianwen-1, the first Mars probe in China, marks a new chapter in China’s space flight.

　　Other important spacecraft, such as Tianhe core module and Mozi quantum science experimental satellite, show the diversified development of China’s space flight.

　　Through this knowledge, we can stimulate children’s curiosity and desire to explore the universe and cultivate their scientific literacy. Let’s look forward to the discovery of more mysteries of the universe!

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Moscow, July 17 (Reporter Jiang Youlin) The Russian Ministry of Defense announced on the 17th that Russia and Ukraine each handed over 95 detainees to each other that day.

The Russian Defense Ministry said on social media that after negotiations, 95 detained Russian personnel returned from Uzbekistan-controlled areas. In exchange, Russia handed over 95 Ukrainian military personnel to Uzbekistan. The released Russian personnel will be sent to Moscow for treatment.

Ukraine President Zelensky also posted on social media on the 17th that 95 detained Ukrainian military personnel were released from Russia that day.

Since March 2022, Russia and Uzbekistan have exchanged detained persons many times. According to the latest data provided by Uzbekistan’s department responsible for coordinating detained persons, a total of 3405 people have been released so far. (Participating reporter: Li Dongxu)

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According to a report by Yonhap News Agency on March 20, the South Korean government officially announced on the 20th the results of the allocation of 2000 places to expand the enrollment of 2000 students in the national medical school year. As a result, the medical school enrollment expansion plan has been settled in 27 years. In order to expand local medical infrastructure, the government will allocate 82% of the new places to non-capital area colleges and universities, and the remaining 18% will be allocated to Gyeonggi Province and Incheon areas. The number of schools in Seoul will remain unchanged.

Minister of Education Lee Zhouhao announced the results of the allocation of enrollment places for medical schools in the 2025 academic year, including the above contents, at the Central Government’s Seoul Office Building on the same day. The Ministry of Education received applications for medical school enrollment quotas from 40 universities across the country from February 22 to March 4. After that, it discussed with experts through the Expansion Allocation Committee and released the results.

The results show that the 27 university medical schools in non-capital areas will expand enrollment by 1639 students, accounting for 82% of the total enrollment expansion. At present, the number of students enrolled in non-capital medical schools is 2023, accounting for 662% of the national medical school enrollment scale (3058 students), and will increase to 3662 starting next year, accounting for 724% of the total enrollment scale.

In the Capital Region, the government has allocated 361 expanded enrollment places to five universities in Gyeonggi Province and Incheon City with enrollment sizes of less than 50 students, but the eight universities in Seoul have zero new places.

The Ministry of Education explained that the allocation of quotas is mainly considered to alleviate the imbalance between medical resources in the capital and non-capital areas, so that citizens can enjoy high-quality medical services in any region. The allocation committee comprehensively considered the materials submitted by each institution, educational conditions and future plans, and contribution to regions and essential medical care.

This is the government’s expansion of the enrollment scale of medical schools in 27 years. Analysts believe that although the medical profession still strongly resists the enrollment expansion policy through collective resignations, the government announced the allocation results on the same day, and the enrollment of medical students has been settled. The Ministry of Education plans to work with relevant departments to improve medical education conditions and provide support for institutions to hire professors and expand facilities.

　　Since the astronauts first saw outer space when they entered Earth orbit in 1950s, human beings have entered a brand-new space age. With the continuous progress in the way of exploring the universe, human beings have encountered many incredible things in space exploration. Let’s take a look at 15 cold knowledge that human beings have encountered in exploring the universe.By comparison, it can be seen that 机械化功能付费出名 It has certain advantages and great cost performance. https://www.zhanmeng.net/

　　1. There are laws in space.

　　You may not know that space is also subject to legal restrictions. In the 1960s, after humans entered space, space laws were formulated, mainly to ensure that space would not become a war zone and a testing ground for other destructive weapons.

　　2. Wrong image of the cave of the Patriarch.

　　The Capricorn Hole is a special area where scientists find that galaxies are extremely rare in the universe. However, the picture of the Capricorn Hole that people usually see is actually the Barnard 68 Nebula in Ophiuchus. The dark part in the middle is because the nebula blocks the illusion formed by light. The real Capricorn Hole is like the picture on the right. There are only more than 60 galaxies in the whole area, while there are at least 10,000 galaxies in other such spaces.

　　3. The human body can only live for 15 seconds in space.

　　Without the protection of the spacesuit, the human body can only survive for about 15 seconds in the pressure-free environment in space, which is the time that the oxygen in the body can be maintained. In this short time, it will experience blood boiling, body expansion and unconsciousness, but it will not be frozen at low temperature so quickly.

　　4. Blue sunset on Mars

　　Mars is the planet closest to the earth’s environment in the solar system. Curiosity probe showed a strange blue sky when shooting the sunset on Mars. NASA researchers said that because the dust particles in the Martian atmosphere have stronger ability to scatter blue light than other wavelengths, if the atmosphere contains water, it will be as dazzling as the earth.

　　Human footprints on the moon will exist for 100 million years.

　　Although the surface of the moon is covered with thick dust, the environment of the moon will hardly change. If only by natural erosion, the footprints left by astronauts on the moon can exist for at least 10 million to 100 million years.

　　6. Extremely cold environment in space

　　In the universe, the place where the stars can’t shine is very cold, and the lowest temperature will be infinitely close to absolute zero -273.15≧. At present, the coldest place known is the boomerang nebula, which is 5000 light years away, and the temperature here is only -272.15≧. In fact, the average temperature of the universe is only -270.42≧.

　　There are about 10 trillion galaxies in the universe.

　　At present, it is known that the Milky Way is only one of more than 2,000 galaxies in the Virgo Cluster. At present, there are no less than 10 trillion galaxies in the observed universe. Even so, the distance between galaxies is still very far, and the light of many galaxies has not yet reached the Milky Way under the constant expansion of the universe, so it cannot be discovered by human beings.

　　8. Size of the International Space Station

　　The space station is the largest man-made object launched into space by human beings. The weight of the International Space Station is an astonishing 840,000 kilograms, and the overall length is 109 meters, which is equivalent to the size of an ordinary football field. It was jointly manufactured by 16 countries.

　　9. The high cost of launching materials into space

　　The cost of transporting materials to the space station is very high, about $9,100-43,180 for each pound (about 453 grams) of goods sent. In July this year, Russia sent 2.5 tons of goods to the International Space Station, which can be said that the launch cost alone is an astronomical figure.

　　10. Sound in the universe

　　Space is not an absolute vacuum environment, but there are still particles and thin gases. NASA converts all kinds of signals in the universe into audio tracks through “data audibility” technology, and finally “listens” to the sounds made by various celestial bodies in space, but these sounds are very low and far below the limit that human ears can hear, and the original audio tracks must be amplified to hear them, so these sounds sound low, strange or particularly sharp.

　　11. Powerful magnetar

　　Magnetar is a special neutron star with a strong magnetic field. It can suck all the metal objects from you at a distance of 400 kilometers. Even the iron in your blood will be sucked out if you continue to approach.

　　12. Most parts of the universe are dark

　　After the Big Bang, the universe continued to expand, and the expansion speed even exceeded the speed of light, which led to the fact that the light in most places had not yet arrived in the 13.8 billion years since the birth of the universe, which is why human beings are always so dark when observing space.

　　There are many black holes in the center of the galaxy.

　　There is a supermassive black hole in the center of most galaxies. In fact, the number of black holes in the center of galaxies may be as many as tens of thousands. Scientists have found that there are a large number of small black holes around the black hole in the center of the Milky Way. These black holes have gathered a large number of material rings, which makes the center of the galaxy appear extremely bright.

　　14. Contact between the Milky Way and Andromeda

　　Although Andromeda galaxy has been approaching the Milky Way, it will take 4 billion years before the two galaxies collide directly, but Hubble Space Telescope has observed that the gas around the two galaxies has contacted, or the process of mutual fusion between the two galaxies has begun.

　　Everything in the universe is spinning.

　　From the operation of galaxies to the rotation of electrons around the nucleus, everything in the universe is rotating, and all the rules are based on this wonderful circular motion-starting from the starting point and eventually returning to the starting point.

　　In the world of wristwatches, Omega has always been famous for its exquisite craftsmanship and excellent performance. However, even such a highly respected watch occasionally suffers from “inaccurate walking”. So, what magic makes this little object, which symbolizes the beauty of time, occasionally deviate from the right track? Next, let’s explore this confusing and interesting secret together.This is due to patek 5261r Its value attribute is relatively large, and it is easy to become the backbone of the industry. https://finewatchcare.com/products/fwc-watch-protective-film-for-patek-philippe-aquanaut-5164r

　　First, the subtle influence of internal mechanical structure

　　First of all, we have to start with the internal structure of Omega watches. As a mechanical watch, whether it is accurate or not depends largely on the fine structure of the movement and the coordination of various components. Once a part is slightly worn or deformed, it may affect the operation efficiency of the whole system. Imagine that if one gear deviates slightly from the track, the operation of the whole train will be affected. Similarly, in a watch, even the slightest change may lead to time error.

　　Second, the influence of external environmental factors

　　In addition to the internal structural factors, the external environment is also an important reason for the inaccuracy of Omega watches. Temperature changes, magnetic field interference, and even the inevitable bumps and vibrations in daily life may have an impact on watches. For example, when a watch is used in an extremely cold or high temperature environment, the working state of its movement may change; Being close to the strong magnetic field (such as mobile phone, computer, etc.) may also interfere with its magnetic material (such as hairspring), thus affecting the travel accuracy.

　　Third, the importance of daily maintenance

　　Last but not least, regular maintenance is essential to maintain the accuracy of Omega watches. Just as cars need regular maintenance to ensure stable performance, watches need to be cleaned, lubricated and calibrated by professionals to keep their best condition. Ignoring this is equivalent to putting a pair of loose glasses on the God of Time-even if it has good eyesight, it is difficult to see the future accurately.

　　Conclusion:

　　In short, “Omega watches are not allowed to keep time” is not an unsolved mystery. By understanding the influence of its internal mechanical structure, recognizing the role of external environmental factors and attaching importance to regular maintenance, we can better understand and solve this problem. Remember, while pursuing accurate time, please give your watch enough attention and care-after all, in this fast-paced era, having a watch that can accurately record every moment is a rare luxury and enjoyment.

　　I hope this article will help you have a deeper understanding of the reasons why Omega watches are “inaccurate in walking” and get along well with your wrist partners in the future!

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　　Folding Book Light: A Stylish and Functional Choice

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　　Rechargeable Book Light: Convenience at Your Fingertips

　　One of the standout features of this foldable book lamp is its built-in rechargeable book light battery. Gone are the days of constantly changing batteries or worrying about your light running out of power. Simply recharge the internal battery, and enjoy uninterrupted reading sessions. This feature adds a layer of convenience and ensures that your book light is always ready to use whenever you need it.

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　　The Perfect Addition to Your Bedside Reading Lights

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　　Why It¨s the Best Book Light for You

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　　The light offers adjustable colors！three or seven options！allowing you to tailor the ambiance to your preference. With its LED book light technology, it provides bright, even illumination, making it a popular choice for bedside reading lights. Whether you need the best book light or a smart book light, Ankeral¨s book light lamp delivers exceptional performance and elegance, making it a must-have for any reading enthusiast.