西安耍耍网

　　After the US election, the European Political Community Summit and the informal meeting of EU leaders were held in Budapest, Hungary, last weekend. Supporting the Ukrainian issue has become the common focus of the two meetings.

　　Since the outbreak of the Russian-Ukrainian conflict, the escalating strategy of "opposing Ukraine and controlling Russia" has brought serious anti-itself effect to Europe, and it has also made countries more and more unable to do so. Few people can clearly answer how long this model will last.

　　Reality shows that on this issue, deep cracks have once again been exposed within the EU.

　　"We should adapt to the new situation."

　　On the 8th, during the informal meeting of EU leaders, European Council President Michelle still stressed that the EU must support Ukraine, "otherwise, it will release the wrong political signal".

　　However, Hungarian Prime Minister Orban, the host of the meeting, called on the EU to adjust its existing policies according to the actual situation.

　　"Even if the defeat is fixed, there are still some people who want the conflict to continue and want to continue to provide a lot of money. But at the same time, some people who once shouted for the conflict are becoming silent. Others cautiously said that we should adapt to the new situation, and these two kinds of people are becoming more and more. "

　　Orban particularly reminded that if US President-elect Trump terminates his aid to Ukraine in the new term, Europe will not be able to provide Ukraine with the financial support needed for the war alone.

　　△ Screenshot of US Consumer News and Business Channel website report

　　Orban had been regarded as an "disobedient rebel" by many western countries because he often "played the devil’s advocate" on different occasions. But in fact, for a long time, there have been differences within the EU on whether to continue to support Ukraine.

　　Slovak Prime Minister Fizzo criticized that the European Council has become a "military cabinet" and only cares about "sending more bullets to Ukraine".

　　"Let’s stop supporting Ukraine militarily, and let’s go back to the negotiating table to discuss the peace plan, although it is extremely complicated and difficult. Military confrontation is meaningless. Sanctions have brought more problems to the EU than to Russia. "

　　△ Ukrainian "Kiev Post" report screenshot

　　What makes these countries angry and helpless?

　　As Orban mentioned, the attitude of some EU countries towards aiding Ukraine is slowly changing.

　　Since the outbreak of the Russian-Ukrainian conflict, Poland has been one of Ukraine’s staunchest supporters. However, with the incidents of Ukrainian agricultural products impacting the Polish market and Polish truck drivers blocking the border, the public opinion base of Poland’s aid to Ukraine gradually faded. From the perspective of finance and its own security, the Polish government is also gradually adjusting its policy toward Ukraine.

　　Coupled with Ukraine’s accusation of Poland’s so-called "stinginess and failure to keep promises", the contradiction between the two countries began to stand out.

　　Polish Defense Minister Caussignac-cames said in an interview a few days ago that since the outbreak of the Russian-Ukrainian conflict, Poland has done its best to provide military support to Ukraine, but Poland does not want to be directly involved in the conflict.

　　"Poland has handed over as much military equipment as possible, but Poland’s own security needs have set clear limits. For example, MiG -29 fighters are used to protect Polish airspace, and I can’t agree to provide these fighters (to Ukraine)."

　　△ "Ukrainian Pravda" report screenshot

　　There are also countries that are full of helplessness on the issue of aiding Ukraine.

　　Taking Germany as an example, under the strategic entanglement of the United States and NATO, Germany has gradually become the second largest aid provider in Ukraine after the United States.

　　The Scholz government will provide about 8 billion euros in aid to Ukraine this year. However, financial constraints have made Germany’s aid to Ukraine weaker and weaker.

　　Affected by the anti-bite effect, Germany’s prices have continued to rise in the past two years, industrial production has declined, and the economy is on the verge of recession, so that German politics has recently fallen into a serious shock.

　　△ "Deutsche Welle" website article analyzes whether the German ruling Coalition can continue its foreign policy of supporting Ukraine after the collapse due to budget problems.

　　"Europe needs to wake up quickly"

　　The difficulties and entanglements of Poland and Germany are also the epitome of Europe as a whole.

　　With the prolongation of the conflict between Russia and Ukraine, Europe has not only become the biggest loser of this crisis at home, but also has to cope with the dual challenges of increasing military spending and long-term assistance to Ukraine while the economy is in a downturn.

　　The bigger dilemma facing Europe is the gradual withdrawal of the United States. US President-elect Trump had previously unabashedly accused Europe of "hitchhiking in the United States" on security issues, and repeatedly expressed his opposition to continuing to aid Ukraine. This makes Europe realize that it is imperative to greatly reduce its dependence on US security.

　　△ Maria Matthews, an analyst at the European Policy Center, said that relying heavily on the United States in its security strategy has made Europe face increasing uncertainty. "I think it is very important for the EU to have its own foundation of autonomy".

　　Cui Hongjian, a professor at the Institute of Advanced Studies in Regional and Global Governance of Beijing Foreign Studies University, believes that Europe should make more "pragmatic" considerations for its own interests in dealing with the conflict between Russia and Ukraine.

　　"Trump said that he has the ability to quickly resolve the Ukrainian crisis. One of his proposals is to reach a consensus through direct communication with Russia. There are still some countries in Europe that firmly support Ukraine and oppose Russia. Once a compromise is reached between the United States and Russia, for Europe, the US security commitment to Europe may become empty talk. "

　　The British "Economist" magazine recently warned that "Europe needs to wake up quickly and find ways to take care of itself".

　　The article said that Trump’s return to the White House means that the good days of Europeans are over. Especially in terms of security, Europe should understand that it can no longer rely on the protection of the United States.

　　△ British "Economist" magazine article screenshot (the picture shows French President Macron and German Chancellor Scholz)

　　Source: Global Information Broadcasting "Global Deep Observation"

　　Reporter Shan Lijuan

　　Editor Yang Nan

　　Signing and examining Wang Jian

　　Producer Guan Juanjuan

　　China News Service, June 20. Yesterday was Father’s Day, and many celebrities took photos on Weibo to celebrate.

　　Li Bingbing posted a group of photos of her father, and hilariously posted eyeliner and red lips to her father, and netizens left messages to ridicule: "Ask for lipstick color number", "try to die, be careful of being forced to marry", "too similar, it must be biological".

　　Actor Chen Shu posted photos of his father when he was young, with the caption: "Obviously he is responsible for his appearance, but his dancing skills are outstanding. Hard work, hard work, you must do your best. Dad has set an example for me by doing it." Users praised him, saying: "Dad is really a male god with an explosive appearance."

　　Actor Chen He posted a photo with his father, with the caption: "The 2.0 version of beauty and IQ!" netizens left comments to joke: "Your father is much more handsome than you", "You are definitely not your biological", "Are you the father who stole Hu Ge?"

　　Actor Guan Xiaotong posted a photo of herself and her father on Weibo. "He will protect me, spoil me, make me breakfast, make dumplings," she said emotionally. "Sometimes he will be strict with me, control me, set rules for me~ But no matter what he is, who he is, he is my father." Users sent blessings: "Be mercilessly happy and happy."

　　Singer Ah Sa also posted a photo of himself and his father. The two in the photo look and look alike. A user commented: "Dad Sa is so trendy and handsome."

　　Singer Wang Feng posted a photo of his father’s military uniform on Weibo, and wrote: "Dad, I miss you! If only I could still be naughty in your arms… Happy Father’s Day." A user posted a consolation: "It’s a pity that your father didn’t see your musical achievements, you are his pride."

　　Zhang Xinyi also posted a photo of his father’s military uniform on Weibo. Users left a message saying: "Kill the current little fresh meat in seconds," while others joked: "At first glance, I thought it was Yuan Hong," "a cherry mouth exactly like yours."

　　Jiang Xin posted old photos of her father’s youth, and was identified by netizens as "like Wang Baichuan".

What is a digital video camera?

　　Digital Video camera is DV, which is the abbreviation of Digital Video. Translated into Chinese, it means "Digital Video". It is a digital video format jointly developed by many famous home appliance giants such as Sony, Panasonic, Shengli, Sharp, Toshiba and Canon. However, in the joint development of a digital video format. However, in most cases, DV stands for digital camera. According to the purpose of use, it can be divided into: broadcast-grade models, professional-grade models and consumer-grade models. According to the storage medium, it can be divided into: magnetic tape type, optical disk type, hard disk type and memory card type.

Development course of digital camera

　　It has been 16 years since the first digital camera was born in 2011. During these 16 years, digital cameras have undergone tremendous changes. The storage media range from DV to DVD to hard disk, with a total pixel of 800,000 to 5 million, and the image quality ranges from standard-definition DV(720×576) to high-definition HDV(1920×1080).

The first DV camera was born in 1995.

　　In July, 1995, Sony released the first DV camera DCR-VX1000. Once released, DCR-VX1000 was widely adopted by TV journalists and producers all over the world. This product uses Mini-DV format tape, adopts 3CCD sensor (3 1/3 inch, 410,000 pixel CCD), 10x optical zoom and optical anti-shake system, and the price at the time of release is as high as 4,000 yuan. DCR-VX1000 is a major change in the history of imaging. Since then, civil digital cameras have entered the digital age.

The first DVD camera was born in 2000.

　　In August 2000, Hitachi introduced the first DVD camera DZ-MV100. At that time, this product could only be recorded by DVD-RAM. Hitachi first brought DVD as a storage medium into a digital camera, and used an 8cm DVD-RAM burning disc as a storage medium, which got rid of the inconvenience of DV tape and was a major innovation after DV camera. However, at that time, not many people paid attention to this product. DZ-MV100 was only sold in Japan, and it was hard to find a trace in the domestic market. It was recognized that DVD cameras should be widely promoted by Sony three years later.

In 2004, the first micro hard disk camera was born.

　　In September, 2004, JVC launched the first batch of 1-inch micro hard disk cameras MC200 and MC100, and the hard disk began to enter the field of consumer digital cameras. The capacity of the two hard disks is 4GB, and the video images taken are compressed by MPEG-2, so users can flexibly change the compression rate to extend the shooting time. The adoption of hard disk media makes it extremely convenient for digital cameras to exchange information with computers. Both MC200 and MC100 and several subsequent 1-inch micro hard disk cameras can flexibly replace micro hard disks. By June, 2005, JVC released the Everio G series with 1.8-inch high-capacity hard disk camera. The maximum capacity reached 30GB, and the volume was well controlled, and the price remained at the level of similar DV cameras.

In 2004, the first HDV 1080i HD camera was born.

　　In September 2003, Sony, Canon, Sharp and JVC jointly formulated the HD camera standard HDV. In September 2004, Sony released the first HDV 1080i high-definition camera HDR-FX1E. The recording resolution of HDV reached 1440×1080, and the horizontal scanning line was doubled compared with that of DVD, and the definition was revolutionized. HDR-FX1E, including the HDV cameras introduced later, used the original ones.

In 2010, the first 3D camera was born.

　　Up to now, the 3D revolution has all revolved around Hollywood blockbusters and major sports events. With the advent of Panasonic HDC-SDT750 3D camera, this technology is one step closer to home users. Panasonic HDC-SDT750 is the world’s first 3D camera. After the launch of this camera, we can capture every unforgettable moment of life with 3D lens in the future, such as children’s first step, university graduation celebration and so on. Panasonic released the HDC-SDT750 3D camera on July 28th, 2010. The official price is RMB 11,998 (excluding 3D lens). It is designed with dual lenses and equipped with Panasonic’s high-end series of 3mos image sensors. (What is a 3D camera? )

Working principle of digital camera

　　The basic principle of digital camera is simply the transformation and transmission of optical-electrical-digital signals. That is to say, the light signal is converted into current through the photosensitive element, and then the analog electric signal is converted into digital signal, and the information obtained after processing and filtering by a special chip is restored to be the dynamic picture we see.

　　The photosensitive element of digital video camera can convert light into charge, which is converted into digital signal through analog-to-digital converter chip. There are two main types: one is widely used CCD (Charge Coupled Device); The other is CMOS (complementary metal oxide conductor) device.

　　Characteristics of digital camera

　　High-definition analog cameras record analog signals, so the image definition (also called resolution, resolution or resolution) is not high. For example, the horizontal definition of VHS cameras is mainly 240 lines, and it is best to mention that Hi8 models only have 400 lines. DV records digital signals, and its horizontal resolution has reached 500~540 lines, which can be comparable to professional cameras.

　　The bandwidth of chroma and brightness signal of DV is almost six times that of analog camera, and the bandwidth of chroma and brightness is one of the most important factors that determine the image quality, so the color of the image shot by DV is more pure and gorgeous, and it has reached the level of professional camera.

　　The signal recorded on the lossless reproduction DV tape can be transcribed countless times, and the image quality will not be degraded at all, which is beyond the reach of analog cameras.

　　Small size and light weight Compared with analog cameras, the size of DV cameras is greatly reduced, generally only about 123mm×87mm×66mm, and the weight is greatly reduced, generally only about 500 grams, which greatly facilitates the users’ size is only 74.7mm×61.9mm×26.9mm and the weight is only 90 grams, which is even lighter than most mobile phones.

Digital camera classification

　　I. Classification according to the purpose of use

　　1. Broadcast-grade models:

　　These models are mainly used in the field of radio and television, with high image quality and comprehensive performance, but with higher price and larger volume, they have the highest definition, the largest signal-to-noise ratio and the best image quality. Of course, the price of several hundred thousand yuan is not acceptable to ordinary people. For example, Panasonic AJ-HPX3100MC and other models.

　　2, professional models:

　　These models are generally used in professional TV fields other than radio and television, such as audio-visual education, and the image quality is lower than that of broadcast cameras. However, in recent years, some high-end professional cameras have surpassed the old models of broadcast cameras in many aspects, such as performance indicators, and the price is generally between tens of thousands and hundreds of thousands of yuan.

　　Compared with consumer models, professional DV is not only cooler and more eye-catching, but also much higher in configuration, such as the use of lenses with better quality performance and the larger size of CCD, which is more prominent in imaging quality and adaptability to the environment. For friends who pursue image quality, the surprise brought by the improvement of image quality can’t be measured by money at all. Such as Sony’s HXR-NX5, the price is around 34,000.

　　3. Consumer-grade models:

　　This type of camera is mainly suitable for home use, and it is used in non-business occasions with low image quality requirements, such as home entertainment, etc. This type of camera is small in size, light in weight, easy to carry, simple in operation and cheap in price. It can be used to make VCD and DVD of personal family in occasions with low requirements, and the price is generally in the order of several thousand yuan to ten thousand yuan. Such as Sony’s HDR-XR160E.

　　If we subdivide the home digital cameras, they can be roughly divided into the following categories: entry-level DV, mid-range consumer-grade DV and high-end quasi-professional DV products.

　　Second, according to the classification of storage media

　　1, tape type:

　　Refers to the digital video camera with Mini DV as the recording medium, which was first developed by more than 10 manufacturers in 1994. Record high-quality digital video signals through a 1/4 inch metal vapor deposition tape.

　　2, CD-ROM:

　　Refers to the DVD digital camera, the storage medium is DVD-R, DVR+R, or DVD-RW, DVD+RW to store dynamic video images, which is simple to operate and easy to carry, and there is no need to worry about overlapping shooting during shooting, let alone wasting time to rewind or play back, especially it can be played immediately through the DVD player, which saves the trouble of post-editing.

　　DVD media has the highest security and stability among all media digital cameras at present. It is neither as easy to wear and tear as tape DV, nor as demanding as hard disk DV for shock prevention. The disadvantage is that the price of DVD is slightly higher than that of tape DV, and the time for recording is relatively short.

　　3, hard disk:

　　Refers to a digital video camera that uses a hard disk as a storage medium. It was first introduced by JVC in 2005, using micro hard disk as storage medium.

　　Hard disk cameras have many advantages, and large-capacity hard disk cameras can ensure long-term shooting, so that you will not have any worries when traveling. When you get home, you can transfer the shooting materials to the computer, and you no longer need the complicated and professional video acquisition equipment as in the era of MiniDV tape camera. You can easily export the materials just by connecting with the computer through USB cable, so that ordinary family users can easily experience the fun of shooting and editing video films.

　　Like CF card, micro hard disk is smaller than DVD, and its service time is the most impressive among many storage media. However, due to the short time of hard disk DV, there are still many shortcomings, such as poor shock resistance and so on. With the further decline of prices, the number of people in need will inevitably increase in the future.

　　4. Memory card type:

　　Refers to the digital video camera using memory card as storage medium, such as the popular "X Easy Shooting" product. As a transitional simple product, it is rare in the market now.

　　Three, according to the type and number of sensors.

　　1. Sensor types: CMOS and CCD.

　　CCD: Charge Coupled Device image sensor, which is made of a high-sensitivity semiconductor material, can convert light into charge, which is converted into digital signal by an analog-to-digital converter chip.

　　CMOS: Complementary metal-oxide semiconductor, like CCD, is a semiconductor that can record light changes in digital cameras.

　　At the same resolution, CMOS is cheaper than CCD, but the image quality produced by CMOS devices is lower than CCD. So far, most consumer-grade and high-end digital cameras on the market use CCD as sensors; CMOS sensors are used in some cameras as low-end products, but some high-end products also use special CMOS as light sensors, such as several high-end CMOS models of Sony.

　　2. Number of sensors: single CCD and 3CCD.

　　The number of image sensors is the number of CCD or CMOS sensors of digital cameras. Most digital cameras use a single CCD as their sensors, while some middle and high-end digital cameras use 3CD as their sensors.

　　Single CCD means that there is only one CCD in the camera and it is used for photoelectric conversion of brightness signal and color signal. Because a CCD completes the conversion of brightness signal and chroma signal at the same time, the captured image can not meet high requirements in color reproduction.

　　3CCD, as its name implies, is a camera using three ccds. We know that if light passes through a special prism, it will be divided into three colors: red, green and blue, and these three colors are the three primary colors used in our TV. Through these three primary colors, all TV signals including brightness signals can be generated. If a CCD is used to receive each color and convert it into an electrical signal, and then an image signal is generated after circuit processing, a 3CCD system can be formed, which can display the primary colors of the image almost intact, and there will be no color error caused by camera deduction.

　　—————————————————————————–

　　If you want to see more digital camera products, please click the following link:

　　Complete collection of digital cameras: //product.pconline.com.cn/dv/

　　Complete collection of high-definition cameras://product.pconline.com.cn/dv/c11107/

　　—————————————————————————–

On the morning of January 29th, local time, a serious accident happened on Temploux E42 highway in Belgium, involving two heavy trucks and three cars. Five people were injured and one died in the accident. After the pileup, one of the trucks rolled over and caught fire. Another car was stuck under the truck and the driver was killed. Firefighters have rushed to the scene. (CCTV News)

Five group honors with the highest gold content in the football world.

Fifth place, five major league champions. Including Premier League champions, La Liga champions, Bundesliga champions, Serie A champions and French champions. The Premier League is the hardest to win in recent ten years, but it doesn’t mean that the winning team is the strongest, such as leicester city in the 15-16 season. La Liga, however, has the highest level of technical flow. No matter whether it is Real Madrid or Barcelona or even Atletico Madrid, it has the strength to compete for the Champions League before, so it was crowned as the top three in the Western Conference. The three teams also won all La Liga titles in the past 20 years. The last time other teams won the prize dates back to Valencia in 2004. The Bundesliga is the most stable, Bayern has won 11 consecutive championships, Ligue 1 and Serie A Om Tang Nuo, but the attention is slightly lower. Messi and Robben won the most prizes in the five major league titles, with 11 seats. Messi’s 12 seats should not be a big problem. It is worth mentioning that Cristiano Ronaldo wants seven seats.

Fourth place, champion of the America’s Cup, Europe and South America are the two best places for football on earth, and America has no weaknesses. This is also a fact. Many people will say that the America’s Cup has been held too many times, so it has no gold content. This is a misunderstanding, and it may be a double standard. First of all, every year in the Champions League, some people think that the gold content is the highest. There is one more America’s Cup, but it has been devalued by some people. What can it be if it is not a double standard? Secondly, there are not many America’s Cup. It will be held normally in 2015, and the centennial America’s Cup in 2016 will be held normally in 2019. In order to keep pace with the European Cup, 2023 will be held in 2021 in advance. Apart from the centennial America’s Cup, the math football teacher doesn’t know much. As for the level, there is not much difference with the European Cup. Anyway, there are often dark horses killed halfway and finally won the championship. Italy, the former European Cup champion, was swept 3-0 by Argentina, the America’s Cup champion, and it can also be seen that this is the case. Normal people know that.

Third place, the Champions League trophy. It’s too big to be a cup, and the level of competition in the Champions League is very high. If it’s hard to say, it must be difficult. It’s hard to win the championship for the teams in the five major leagues and other European leagues. Many teams even qualify for the competition. But it’s simple to say, as long as you are in the giants and the various fronts are extremely luxurious, anyway, the Champions League will be held every year, and you will come back next year if you don’t win this year. For a team like Real Madrid, it’s like cutting leeks. It’s not who is strong, but everyone is strong and profound. Ten people with a giant baby can win the championship. Besides, everyone is at the top level, so if you want to win the Champions League, the platform is very important. Many people have never worked hard for a lifetime, such as Luo, but some people are lucky to stay in Real Madrid and run cups every year. In fact, leaving Real Madrid is just like that. Like Ramos and Pepe. Heng Tuo is the player who has won the Champions League the most times, with a total of six times. No one has ever come before and touched porcelain. Of course, the gold content of the Champions League can also rank third. After all, the economic level is there, but it must be said that the highest is indeed kilometers away. Otherwise, the wind support of the six Champions League has long been the first in history, which is as funny and timid as James thinking that he is the leader when he wins a championship.

Second place, European Cup. The European Cup is the second largest event in sports, but it is not necessarily how high the level of competition can be and how horrible the difficulty of winning the championship can be. Otherwise, it will not always be a dark horse, the third place in the group will not be able to win the championship, and the European and American Super Cup will not be defeated by the America’s Cup. However, its influence and commercial value are really good, and its gold content ranks second, which is barely enough.

The first place, of course, is the World Cup. It is almost impossible to eat grapes to say that the World Cup has no gold content. Under the background of sour grapes and the hopeless resurrection of Mu Rongfu, first of all, the World Cup is held every four years. How many four years can a person have in his life? Besides, athletes have not yet. Those who have participated in six World Cups and participated in more than a dozen competitions in the Champions League. Secondly, is the World Cup really just for 32 teams to play for a month? The top 32 players who can enter the finals are all kicked in from the qualifiers, and no one has the privilege except the host. For example, the top 40 players in Asia need to play in groups first, and the top 12 players will be decided, and then the top 12 players will play in groups to decide four and a half places. This round trip involves all teams in almost all countries and regions in the world, and it will take three or four years, but it is really funny that some people say that there is no gold content. Finally, everyone who knows football knows that only one athlete can be as full of energy and go all out as playing the World Cup in other events, and all teams on the World Cup stage, even if their strength is weak, can burst into amazing fighting capacity. As for the influence of the World Cup, needless to say, it may be second only to the Riyadh victory in the Saudi Super League.