The social Red Sea is constantly fighting, and many players still end up. The author counted 19 niche social apps to see if these niche products really found the blue ocean.

Social apps, especially strangers socializing, are already jealous. Acquaintances’ social interaction needs the precipitation of relationship chain, which is a zero-sum game-it is difficult to make a breakthrough after one family dominates.

When strangers socialize, there seem to be more dimensions that can be expanded.

Today, I will mainly talk about strangers’ socialization, and analyze the current red sea of strangers’ socialization from three aspects: people, media and form.

Socialization, no matter how you play, is still a person. So we analyze social apps, and the simplest thing is to start with people.

I have to say that the battle for social apps has put people’s external, internal and objective environment in place and used it thoroughly.

Representatives: Detective, tinder

The two apps are consistent from the gameplay to the design pixel level: according to the positioning, the nearby people are screened out, and the avatars are displayed in the form of cards. Left sliding is not interested, and right sliding likes it; If you happen to like each other, that is, you can have a one-on-one chat.

In fact, exploration and tinder can’t be called the originator of "judging people by their appearances", but this card design and gesture interaction are different from the previous concealment and directly put "judging people by their appearances" on the table.

Detective and tinder, which are currently profitable by "subscription" members, provide the following services: super liking, unlimited regret, arbitrary change of positioning and unlimited likes; Tinder has a little more items, and boost can give priority to the display of avatars in the region, select visible objects, and manage personal data to limit the visible content of others.

However, this match method is not without its shortcomings.

I used my brother’s head, and the result has never been matched. "Yan ugly refused" for a long time, and there is no other way to find friends on this APP, so I have to give up this APP.

The highly consistent pixel level of these two apps is also considered as an epic masterpiece in the plagiarism list. The plagiarists are also very helpless. It is extremely simple to dig the old stalk of "judging people by their appearances" with interactive new gameplay.

This kind of gameplay has little room for "learning", so that others can’t copy it. Followers can only wander before being shameless and proud, and finally choose to be shameless.

This card-type design, which uses left sliding and right sliding to interact, is really simple and direct. And the services provided by members just make up for some embarrassment of interaction.

From this point of view, simplicity to the extreme is also a great weapon.

• Advantages: simple gameplay; Interaction is interesting.
• Disadvantages: passive matching and uncontrollable waiting.
• Suitable for the crowd: Yan control and Yan value confidence.

The picture above shows exploration.

The picture above shows tinder.

Representatives: as before, impression of friends, same, moment.

1) As usual

Make friends with three views, and when you first enter, there will be a basic test package, which contains some test questions about three views, taste and preference for making friends. Through the answers you submitted, find a friend who fits the three views.

However, this algorithm is still a black box and has not been published. I guess, if it is simple, these questions should have a classification. For each classification, if the score of one of the classifications is almost the same, two people can match.

There is also an "opinion square" in the middle where you can express your views by voting.

At present, no profit method has been found.

• Advantages: it seems easier to find friends if the three views are consistent; Opinion Square voting expression is more interesting.
• Disadvantages: the three views filled in are not true.
• Suitable for the crowd: people who believe in the soul and are interesting.

The picture above is the same.

2) Impression of friends

Friends impression learning uses tinder’s card design and gesture interaction. There are two ways, one is to actively search through information cards, and the other is to passively match by answering questions.

Taking the initiative to find, unlike just looking at the face value, friends’ impressions also put text information such as mind-wandering questions and answers, latest impressions, and mate selection criteria on the card. Passive matching, the answer to the question is made into a card, which is the same as tinder’s interactive way. Right sliding likes it, and left sliding doesn’t like it (but this is the old version, and the new version is made into a chat form; The old and the new can be switched, probably because it is the old version, so it is not maintained very much. There are some problems in the interaction of sliding left and right, and sometimes it can’t slide).

Compared with the old version, the new version of the chat dialog box is not as interesting as before, but it is more in line with his gameplay. For example, you have to answer questions to participate, which is really better than before. However, because of the slow update of information, users lack a sense of control, which is also a drawback.

At present, no profit method has been found.

• Advantages: For example, it goes further and directly matches the crowd through opinions. There are two ways: active and passive.
• Disadvantages: the interface is not particularly nice.
• Suitable for the crowd: heart-walkers.

The picture above shows the impression of friends-active search

The picture above shows the impression of friends-passive matching (old version)

The picture above shows the impression of friends-passive matching (new version)

3）same

Same’s gameplay is to choose the channel you are interested in, watch/post pictures and essays in the channel, and find the same hobbies as yourself-this way can be regarded as a kind of making friends through three views.

At present, no profit method has been found.

• Advantages: according to the channel group discussion, the topic concentration is high, which is easy to cause discussion and management; The interface is more beautiful.
• Disadvantages: Not yet.
• Suitable for the crowd: there is no particularly unsuitable crowd.

The picture above shows same.

4) a moment

There are many excellent articles and radio stations (and the design of an instant chat room). The biggest feature of this APP should be that the interface is very beautiful. Because the content is excellent, the UI made with these contents is also very good.

For example, the way to show the articles without pictures in the information flow is to use the default picture and mask, which enriches the information flow and marks the types, so that users can see at a glance.

At present, the way to make a profit is e-commerce, through buying people, cooperating, selling around the APP, etc. You can look at the product details page. Unlike the cold specification list, every product details page is almost an emotional article, waiting for the literary tonality of the APP.

• Advantages: excellent content and exquisite design.
• Disadvantages: the threshold is slightly higher.
• Users: young artists.

The picture above shows a moment.

Representative: celebrity circle of friends

The exploration of the inner world, in addition to the three views, also has hobbies. When socialization has become the standard of almost all apps, the apps in hobbies have not been missed.

Celebrity circle of friends is an APP in Wuhan, which mainly participates in and publishes role-related circle of friends through role-playing. The main users of this language cosplay product are teenagers aged 12-20.

Telling the truth, when I am older, I really can’t adapt to this thick youthful atmosphere. Whether you can’t get into Secondary Two or you don’t understand the sadness of 45 degrees, it’s a mistake to be old, because there will always be people who are young.

At present, the way to make a profit is to buy value-added products (gifts) in-app.

• Advantages: the area is very rich, the characters are particularly many, and the gameplay is particularly simple.
• Disadvantages: I haven’t found it yet.
• Suitable for the crowd: young people who love cos.

The picture above shows the circle of celebrity friends.

Representatives: meetup, join

The gameplay of activities in the same city is basically the same, mainly publishing/viewing activities and actively participating.

Meetup focuses on activities, and the home page is almost a list of group and activities.

Join focuses on people, and the home page is divided into diaries and encounters. Diaries focus on post information flow and meet the list of main characters, mainly to discover people, classmates, fellow villagers and peers in the same city.

Join’s activity entrance is in the second tab, and the entrance is relatively hidden compared with meetup.

Comparatively speaking, join, as a social APP in the same city, focuses on making friends online, while meetup focuses on offline activities.

Compared with most people, the organization of activities in the same city is challenging, and participation is also limited in time and space. If almost all activities are displayed, meetup’s list in unpopular areas will be empty.

Users open meetup and have to abandon it without any activity. Join provides an option to make friends online, which solves this embarrassment.

As for the profit mode, it has not been found at present.

• Advantages: join is laid out online and offline at the same time, which better solves the embarrassment when offline is insufficient.
• Disadvantages: When meetup offline is insufficient, the home page will be empty and there will be no other ways to play, which will be embarrassing.
• Suitable for the crowd: Zhai Qing (it is impossible to go out, and it is impossible to go out for a lifetime).

The picture above shows meetup.

The picture above shows join.

According to the published media, it can be divided into text, pictures, audio and video.

Representative: MarinChat

Text is basically the standard of all apps. And this MarinChat is simply a clean stream in social products, which is extremely simple-only words can be sent, and pictures are only used for the display of avatars.

You don’t need to register, you can post, reply and chat directly by setting your avatar and nickname.

Function, then only post, reply, chat, report.

• Advantages: simple; If you don’t plan to save traffic, don’t cheat.
• Disadvantages: Some people may not like this minimalist style.
• Users: At present, I only see the Japanese version.

The picture above shows MarinChat.

Representative: ins, We Heart It

There are many such apps, the most famous of which is ins, and pictures are standard for almost all social apps. Ins does not say much; We Heart It can write articles or publish pictures.

The main way of making profits is advertising at present.

• Advantages: Beautiful pictures.
• Disadvantages: writing articles can only be written on the computer.
• Suitable for the crowd: all.

The picture above shows We Heart It.

Representative: Warm friends.

Warm friends, whether posting or commenting, are in the form of voice. There are rich interactive activities about sound, and the operation is better.

But something seems to have happened recently, so I can’t log in.

At present, no profit method has been found.

• Advantages: pleasing to the ear.
• Disadvantages: It takes longer to play audio than to watch text. And can’t watch at the same time like words; And the threshold for sending audio is higher than that for sending text.
• Suitable for people: voice control.

The picture above shows warm friends.

• Short video representative: Tik Tok;
• Live representative: Mo Mo.

Needless to say, these two.

I have to admit that loneliness and desire to talk are time-sensitive.

Obviously, it is difficult to solve such a problem with the current message type information flow products or people lists, and an instant chat room is needed.

Representative: Rooit

After selecting the topic, match the chat object immediately. At present, the way to make a profit is to buy value-added products in the application, such as missing persons radar. Pairing will automatically fail if there is no interaction within 30 minutes. If you need to find the person who was paired before, you need to use the missing person radar.

• Advantages: Random pairing, instant solution to the current chat needs.
• Disadvantages: In order to avoid the initial embarrassing chat, you can add some topic cards that can be greeted in chat.
• Suitable for the crowd: staying up late at night

The picture above shows the home page of Rooit.

The picture above shows the Rooit chat interface.

The picture above shows the page of the Rooit Store.

Representative: wakie

Wakie is based on a theme, you can carry out group chat or join a specific group for group chat.

Sometimes, some simple design changes have changed the whole social atmosphere. For example, comments APPear in the form of chat boxes in this app, and each comment is a chat bubble.

Such a simple change directly erased the feeling of waiting, as if a group of people were discussing a topic in real time.

• Advantages: the startup diagram is beautiful; Topic updates are faster.
• Disadvantages: the topic lacks operation, and the user UGC is too arbitrary and not hot enough.
• Suitable for people: learning languages; People who like to chat.

The picture above shows wakie’s topic details page.

Representative: Neighbor

Click on the random phone to randomly match people for telephone communication. In addition, you can also click on each voice live room to interact with the anchor.

The way to make a profit is mainly value-added products such as gifts and red envelopes in the live broadcast room.

• Advantages: immediately solve the desire to talk.
• Disadvantages: Instant calling may make most people uncomfortable.
• Suitable for people: have a strong desire to talk or have a special purpose.

The picture above shows the neighborhood.

Representative: Youjia

It is also the first time for me to know what peripheral resources are. I was always curious about where these scantily clad girls came from. After being told by my colleagues that they were peripheral resources, I suddenly realized.

In addition to Youjia, there are many such apps. I downloaded a lot at that time, and as soon as I opened it, it was all consistent in playing, paying for video chat and giving gifts.

The profit methods include in-app purchase and VIP.

• Advantages: the gameplay is very simple, and there are peripheral resources that can be done directly, which feels quite profitable.
• Disadvantages: The page of this APP is relatively thick. crude
• Suitable for people: have a strong desire to talk or have a special purpose.

The picture above shows Youjia.

Some of them also show pictures or words, but the form is more interesting.

Representative: bottled

Use the form of drift bottles to write letters to others and put them into the sea for others to salvage. Salvage it, and then you can chat with this person.

The profit method is a prop in the application.

• Advantages: the form is interesting.
• Disadvantages: I feel that the way the bottle is displayed is a bit messy.
• Suitable for the crowd: all.

The picture above shows bottled.

Representative: lyf

What is concerned here is no longer a person, but a Journey. This journey is similar to a topic, and it is equivalent to setting up a flag for encouragement.

• Advantages: the form is more interesting.
• Disadvantages: Not yet.
• Suitable for the crowd: all.

The picture above shows lyf.

Representative: Steepshot

Both publishing and participating can get relevant blockchain coins.

• Advantages: the form is interesting.
• Disadvantages: suitable for young people in the currency circle.
• Suitable for the crowd: suitable for young people in the currency circle.

The picture above shows Steepshot.

Above.

This article was published by @ Xiong I don’t know the original. Everyone is a product manager. It is forbidden to reprint without the permission of the author.

The title map comes from Unsplash and is based on CC0 protocol.

　　The inspirational drama "Love Jewelry", starring Wang Lin, Loura and Nikita, will be launched on the 24th of this month. Three actresses who have created classic screen roles gather for the first time, bringing you a drama in which family love and dreams are intertwined. Song Qi, played by Nikita, can be described as a realistic version of Cinderella. In the play, Lacrimosa’s "little daughter-in-law" realizes a gorgeous counterattack every day and turns into a "big woman" with a happy career and family.

　　In this play, Song Qi, played by Nikita, comes from a poor family, but in order to realize her dream, she fought back all the way and became a jewelry designer through unremitting efforts. While realizing self-worth, I also gained sweet love.

　　However, life will not always be smooth sailing. Married life is the biggest challenge that Nikita plays "Song Qi". For the harmony of love and family, she indulges her husband everywhere, and at the same time, she has to endure the cynicism of her mother-in-law, Wang Lin, the "Snow Aunt". It can be said that she is trying to survive in the cracks. Nikita said frankly that he was either crying or preparing to cry when filming the play, and he was "Lacrimosa" every day. For crying, Nikita joked: My eyes have turned into faucets, and tears will come.

　　At present, "Love Jewelry" is scheduled to be broadcast on Jiangxi Satellite TV in prime time on November 24th, expecting Nikita to recreate the image of "a different kind woman" after "Niu Shurong" in "The War of Two Women".　　　　　　　　　　　　

　　August is coming, and the long summer vacation is drawing to a close. For the "Little Bean Bag" and parents who are about to enter the first grade, the rest of the time is full of expectation and anxiety. So, how can we help "children" transition to "primary school students"? What preparations should parents make? The reporter interviewed relevant experts.

　　Listening to the weather forecast and remembering the temperature helps to exercise children’s concentration.

　　"After entering the first grade of primary school, children are particularly prone to discomfort in four aspects: schedule, attention, self-care ability and living habits." At the 48th public lecture of Haidian Family Education Lecture Hall held recently, Xiao Ying, the principal of the primary school affiliated to Beijing Petroleum Institute, shared with her parents the experience of making a good connection between young and old.

　　Xiao Ying said that in terms of schedule, kindergartens mainly focus on activities and games, and there are not many teaching activities. The primary school has a systematic three-level curriculum, no special nap time, and the schedule is completely different from that of kindergarten. Therefore, it is easy for children to get up in the morning and doze off in the afternoon after entering school. In this regard, she suggested that parents should arrange their schedules reasonably and try to put their children to sleep around 8: 30 in the evening. In addition to going to sleep early at night, parents can consciously train their children not to take a nap or take a purposeful trip from August, so that children can gradually get used to not taking a nap.

　　Xiao Ying also found that primary school students who have just entered the first grade still have problems such as not being able to dress themselves, tie their shoelaces, pack their schoolbags, not caring for their school equipment and drinking water on their own initiative. She suggested that parents can help their children master their self-care ability by teaching methods, deliberate repeated practice, inspection and supervision. At the same time, it is also necessary to cultivate children to actively develop health habits and etiquette habits that are suitable for primary school learning.

　　Lack of concentration is also a big challenge. Xiao Ying said that the concentration time of primary school students is between 20 minutes and 25 minutes, which is because the development of children’s nervous system is still developing. With the increase of age, the situation of inattention will gradually improve. Parents can help their children improve their attention in advance through a series of methods. For example, exercise concentration by listening to the weather forecast and recording the temperature of each city; Train the breadth of attention by listening to the extended sentences and repeating them. "These methods are mainly through language communication, so that children can grab words and keywords, thus improving their attention. In addition, you can also play games such as catching and throwing balls with your children to improve your attention. "

　　Don’t go to preschool blindly, which will easily lead to inattention.

　　With the approach of school, the psychological counseling center of primary and secondary schools in Beijing has received many anxious and confused parents. One of the topics that parents are most concerned about is whether it is necessary to "stupid birds fly first" and use the summer vacation time before entering primary school to find one-on-one tutoring or enroll their children in preschool classes.

　　Wen Fang, director of the psychological counseling center for primary and secondary schools in Beijing, gave his own advice from the perspective of psychological development. The most direct consequence of "flying first for a while" during the holiday is that children lose the patience to listen carefully when they get to class. "There is nothing to learn in class, and children are easy to stay. In the long run, it is easy to cause bad habits of inattention. When it comes to in-depth and difficult parts, children are not willing to listen. "

　　Chu Zhaohui, a researcher at the China Academy of Educational Sciences, said that parents should take a long-term view in terms of children’s growth and development. He told reporters that there is a famous "twin climbing stairs" experiment in psychology: let a pair of identical twins practice climbing stairs, and one of them starts practicing in the 48 th week after birth and practices for 10 minutes every day; The other started the same training at the 53rd week after birth. At 54 weeks, one child practiced for 7 weeks, while the other only practiced for 2 weeks. So, which of the two children climbs the stairs at a higher level? The experimental results are unexpected. Children who have only practiced for two weeks can climb stairs faster. "Therefore, some training institutions claim that after training, children are more focused and their memory is enhanced compared with untrained children. In fact, such a comparison is of no value to children’s growth and development, because some abilities can be naturally developed by children after a certain period of time. "

　　Li Zhuo, the lifelong honorary principal of Beijing Shijia Primary School, specially wrote a parent handbook "Welcome to Grade One" for parents who are facing young convergence. He introduced that in some countries in East Asia and Europe, children began to attend the first grade at the age of 5. What is the purpose of 5-year-old children trying to learn in class? In order to understand the rules of the classroom and sit still in the classroom. From this point of view, it is still very valuable to enter the preschool training place to experience it. However, it should be noted that the preschool class is to feel the upcoming classroom learning style in advance, rather than to receive the knowledge of the first and second grades of primary school in advance. In addition, another important role of preschool classes is to let children show some possible problems in advance in the upcoming primary school life. In this way, parents can be reminded in time so as to find countermeasures earlier.

　　Excessive expectation and extreme weariness of learning, and school attitude reflects family problems.

　　Taotao is going to primary school soon. Within a few days of receiving the notice, the school organized entrance education to help them know the new environment they will study in advance and know their future classmates. Unexpectedly, after entering the school, he added a new habit in this holiday: grinding his grandfather to go to his new school every day. When the school is closed during the holidays, he just looks at the door for half a day. The scorching sun often makes him sweat all over, but grandpa can’t even persuade him to go to a cool place. Grandpa was distressed and helpless, so he had to find the psychological counseling center of primary and secondary schools in Beijing. "Is my grandson sick?"

　　Contrary to surging, there is another extreme who comes to the psychological counseling center of primary and secondary schools in Beijing: in the distant home, "going to school" has almost become a taboo topic at home. As long as someone mentions going to primary school, Yao Yao immediately turns his face and cries and makes trouble. Mom and dad are very worried. "I’m tired of learning like this before I go to school. What can I do in the future?"

　　Director Wen Fang said that both extreme psychological states need to attract parents’ attention. Generally speaking, the extreme expectation of going to school shows that children feel the lack of emotion in the family. "Adults at home pay little attention and have to look forward to looking for attention in the new environment outside." He reminded that children in this situation are easy to "make bad friends" and are eager to find channels for emotional communication and venting, so "bad companions" have an opportunity.

　　However, children’s mentality of avoiding going to school reflects the opposite state. "This kind of child tends to rely too much on family ties, which is not conducive to the child’s transformation from a natural person to a social person." Wen Fang suggested that in this case, the family environment and work standards should strive to be in line with the school. Parents should not do everything, but encourage their children to take the first step independently.

　　Who is in charge of children’s schooling? Consistency in family education is very important.

　　Recently, the psychological counseling center of primary and secondary schools in Beijing has also received counseling from many family groups. Before the children went to school, there were signs of internal family wars. Take Nuo Nuo’s family as an example. Parents’ commuting time conflicts with school time, so they can’t pick up and drop off, so they have to leave this arduous task to their grandparents. Unexpectedly, my grandparents insisted on one point: "Since the children are here, we have to listen to everything, and parents have to give up." The two sides couldn’t talk it over, so they came to the consultation center for expert help.

　　Director Wen Fang said that a very important principle in family education is "consistency". He put forward several four-word principles: division of labor and cooperation, cooperation and co-management; Close contact to enhance trust; Actively demonstrate and comply with regulations; Grasp the principle and give priority to development.

　　In fact, parents who have no time to take care of their children full-time do not need to feel sorry and worry too much. A previous survey report by the Family Education Committee of China Education Association showed that grandparents’ participation in parenting would not adversely affect the parent-child relationship between parents and children; If grandparents only partially participate in children’s upbringing and do not play a leading role in it, it will not have a negative impact on children’s adaptability to life.

　　In the handbook for parents, President Li Zhuo also analyzed the question of "who will take care of the children". Nowadays, most of the young parents work full-time. At the beginning of school, most parents will discuss who has more flexible working hours and who has more energy after work, who will mainly manage the children’s study. "It is important to have available time and energy, but over the years, after contacting many parents with different personalities and different communication methods, I think the best choice criterion for this matter is: who is more willing to take care of the children." President Li Zhuo said.

　　Li Zhuo said that because of the will, it is easier to find management methods, spend more time observing children, have more patience to communicate with children, and help children sum up rules and skills. If, unfortunately, the party who is more willing to do it is busy, then the two sides can negotiate a good division of labor after full discussion. For example, after a plan is made, it will be implemented by the party with more time, and the children will continue to feedback and adjust each other during the learning process until they find the most suitable rhythm and form of family learning. (Reporter Niu Weikun)

△ Video: "Challenge Impossible"

CCTV News:Today is "119" Fire Day, and some people call fire fighters "retrograde heroes", because whenever there is a crisis, all people are retreating backwards, and only fire officers and soldiers are going retrograde. Touched by the spirit of courage to take responsibility and dedication for these lovely people, their superb skills are also impressive and admirable.

No, recently, an armed police fire fighter in Gansu province showed his exquisite skill of blindly cutting steel wires on light bulbs with a toothless saw in the inspirational program "Challenge Impossible".

Fire fighters blindly cut steel wire bulbs on the bulbs without any damage.

The soldier’s name is Li Haifeng, and his challenge is to blindly cut the steel wire fixed above the light bulb through a thick steel plate with a toothless saw.

△ Toothless saw

The distance between the steel wire and the bulb is only 0.01 mm.

After 45 seconds, the steel wire broke with a bang, and Li Haifeng quickly received the force, and the light bulb was not damaged at all.

In the end, Li Haifeng challenged successfully and won applause and exclamations at the scene. Of course, such skills are not limited to stage performances, but are more used in Li Haifeng’s rescue work.

For example, once, a 16-year-old boy couldn’t get the ring off his hand. After trying to cut the ring with tools such as steel bar breaker, pliers and saw, Li Haifeng decided to use a toothless saw.

He wrapped the boy’s hand with a towel in order to prevent the sparks from cutting from hurting his skin. During the cutting process, he kept watering the boy’s hands to cool down because of the fever.

In the end, Li Haifeng sawed off the ring with a toothless saw and successfully saved the boy’s finger.

After 17 years of practice, I have developed an extraordinary stunt.

When Li Haifeng challenged to cut the steel wire, he relied on hearing and touch. He said, "The right ear captures the sound of the engine, and the left ear distinguishes the friction of the grinding wheel." The summary of a short sentence embodies the sweat and hardships of 17 years.

In 1999, 19-year-old Li Haifeng joined the army from Hebei and became a fire fighter of Gansu Baiyin Fire Brigade. A few years before joining the army, Li Haifeng has been the squad leader of the rescue class, specializing in demolition technology. In 2010, he began to try to cut the steel wire on the light bulb with a toothless saw. From the initial watching to the later blindfolded cutting, Li Haifeng exchanged three years of tenacity and sweat for the unique skills in the country today.

"In three years, I chopped up more than 1,000 light bulbs." Li Haifeng said that from the initial lack of confidence and the discouragement of countless failures, he experienced painful hardships again and again. "Now, I have formed a deep feeling with the light bulb."

Facing the test of life and death, be a pioneer in emergency rescue again and again.

Since joining the army at the end of 1999, this military uniform has given Li Haifeng a strong sense of mission. At the age of 36, he rescued 188 people in distress, protected tens of millions of materials and property, and won many honors. He is currently the deputy director of the training department of Gansu Provincial Public Security Fire Brigade, and his injuries are as many as the awards he won.

Over-training and accidents in many rescue accidents, Li Haifeng suffered six fractures, numerous minor injuries, severe varicose veins in both legs, and unbearable pain at the fracture site every cloudy day. And he said: "There will be a lot of aerial work in fire fighting and rescue, and there will be many accidents in emergency rescue, which will inevitably lead to sprains and bruises, which is normal."

△ Li Haifeng blindly cut the steel wire fixed above the bulb through a thick steel plate with a toothless saw.

Now I have a skill, but I was afraid at the beginning. Li Haifeng recalled that in 2000, not long after he joined the army, he once performed a extinguishing task, and the squad leader asked Li Haifeng to set up the gas tank. "After the rescue of personnel was completed, in the face of the explosion of liquefied gas at any time, at the moment when all firefighters were ready to evacuate, the captain asked me to help the liquefied gas tank immediately. To be honest, I hesitated for a moment, because I was really scared. The liquefied gas tank was still breathing fire and could explode at any time. " Despite his inner fear, Li Haifeng did it at once. Just turning 20, he felt as if he had passed by death.

△ Li Haifeng participated in the second season of "Challenge Impossible".

I have participated in various rescues for more than 3,000 times in 17 years, but the more I have seen life and death, the deeper I feel awe. "I remember a multi-person car accident in Baiyin No.1 Road in 2013. When we rescued one of the ladies, she had no signs of life. At that time, her son kept crying, and her husband immediately knelt down and kept kowtowing to us and begged us to save her. At that time, I felt my heart was bleeding, and I really felt very ‘ Incompetence ’ . Life is particularly fragile, and all fame and fortune are not important in front of life. "

This job also gives Li Haifeng few opportunities to reunite with his family. Li Haifeng’s wife said in the program, "Although we get together less and leave more, the day we marry Li Haifeng, we are ready for all the psychological preparations we need to bear as a military spouse." A simple sentence made the host Dong Qing and many viewers shed tears on the spot.

Li Haifeng’s soul-shaking skill display is precisely because of his deep sense of responsibility and mission. He explained the word "hero" in peacetime with the most practical actions.

　　Core reading

　　China’s economy has great development resilience and potential, and the long-term positive fundamentals have not changed. We should correctly understand the general trend of China’s economic development, accurately grasp the strategic opportunities facing China’s economic development, and promote the effective improvement of quality and reasonable growth of the economy.

　　Since the beginning of this year, under the complicated and severe external environment, China’s national economy has continued to recover, the overall recovery has improved, and high-quality development has been solidly promoted. Although the current economic operation is facing new difficulties and challenges, China’s economy has great development resilience and potential, and its long-term positive fundamentals have not changed. General Secretary of the Supreme Leader pointed out: "China’s development is still in an important period of strategic opportunities, but there are new developments and changes in opportunities and challenges." Report to the 20th CPC National Congress of the Communist Party of China made a major judgment that "China’s development faces new strategic opportunities", and at the same time emphasized that "China’s development has entered a period in which strategic opportunities and risk challenges coexist and uncertainties and unpredictable factors increase". Whether we can grasp new strategic opportunities, effectively deal with complicated risk challenges and firmly grasp the initiative of development depends fundamentally on whether we can concentrate on our own affairs. We should correctly understand the general trend of China’s economic development, firmly grasp the primary task of high-quality development, implement the new development concept completely, accurately and comprehensively, and promote the effective improvement of quality and reasonable growth of quantity of the economy.

　　China’s overall economic recovery is improving, and high-quality development has been solidly promoted.

　　Since the beginning of this year, under the strong leadership of the CPC Central Committee with the Supreme Leader as the core, all localities and departments have better coordinated the two overall domestic and international situations, better coordinated the prevention and control of epidemic situation and economic and social development, better coordinated development and safety, achieved a good start in the first quarter, continued to recover in the second quarter, and continued to recover steadily in July. In the first half of the year, the GDP increased by 5.5% year-on-year, which was significantly faster than the economic growth rate of 3% in the whole year of last year, and was also significantly faster than the economic growth rate of major developed economies in the world.

　　Consumption recovered and the investment structure continued to be optimized. Since the beginning of this year, the economy and society have fully resumed normal operation, and the order of production and life has been accelerated. China’s consumption has recovered. 1— In July, the total retail sales of social consumer goods increased by 7.3% year-on-year, service consumption increased rapidly, cultural and entertainment consumption continued to expand, and online retail remained active. The scale of investment in fixed assets continued to expand, and investment in high-tech industries grew rapidly. 1— In July, investment in fixed assets (excluding farmers) increased by 3.4% year-on-year, of which investment in infrastructure and manufacturing increased by 6.8% and 5.7% respectively, and investment in high-tech industries increased by 11.5%.

　　Industrial upgrading was steadily advanced, and the recovery of service industry was accelerated. Since the beginning of this year, the three industries have continued to recover and the development foundation has been consolidated. Agricultural production remained stable, and summer grain production achieved a bumper harvest. Industrial production continued to recover, 1-mdash; In July, the added value of industrial enterprises above designated size increased by 3.8% year-on-year. The green transformation achieved remarkable results, new energy-related industries developed well, new energy vehicles, photovoltaic cells and other products grew rapidly, and the driving force for upstream and downstream industries was also enhanced. The service industry grew rapidly, 1-mdash; In July, the national service industry production index increased by 8.3% year-on-year, and the growth rate of contact and aggregation services such as accommodation, catering and transportation rebounded significantly.

　　The trade structure continued to be optimized. China has actively expanded its high-level opening to the outside world and promoted the optimization of trade structure. The scale of import and export of goods is generally stable and the trade surplus remains at a high level. 1— In July, the import and export of general trade with higher added value accounted for 65.4% of the total import and export, and the import and export of private enterprises increased by 6.7%, accounting for 52.9% of the total import and export; Imports and exports to countries along the Belt and Road increased by 7.4% year-on-year, faster than the growth rate of all imports and exports.

　　Employment and people’s livelihood are strongly guaranteed. With the improvement of economic recovery, the policy of stabilizing employment has been effective continuously, and the employment situation has gradually improved. In the first half of the year, 6.78 million new jobs were created in cities and towns nationwide, an increase of 240,000 over the same period of last year. The average unemployment rate in national urban surveys is 5.3%. Residents’ income grew rapidly. In the first half of the year, the per capita disposable income of the national residents was 19,672 yuan, a real increase of 5.8% after deducting the price factor, which was significantly faster than the growth rate of last year.

　　Under the complicated and severe external environment, such as the weak recovery of the world economy, the high level of global inflation, and the prominent spillover effect of monetary policy tightening in major economies, China’s economic growth rate remains ahead of the major economies, demonstrating the strong resilience of China’s economic development. At the same time, we must see that the current economic operation is facing new difficulties and challenges, mainly due to insufficient domestic demand, difficulties in some enterprises, many hidden risks in key areas, and complex and severe external environment. Among them, there are both cyclical and structural factors, both developmental and institutional obstacles, both supply-side and demand-side drivers, both domestic and international risks. However, in the long run and the general trend, China’s economy has great development resilience and potential, and the long-term positive fundamentals have not changed, and China’s development is facing new strategic opportunities.

　　China’s continuous development and growth has brought new development opportunities.

　　General Secretary of the Supreme Leader pointed out: "Our greatest opportunity is our continuous development and growth". After the founding of New China, especially since the reform and opening-up, we have completed the industrialization process that developed countries have gone through for hundreds of years in decades, and at the same time made great achievements in various fields such as politics, culture, society and ecological civilization. Self-development is the most solid foundation for us to cope with risk challenges, and it also brings us more development opportunities.

　　China’s entry into a new stage of development contains an important opportunity to achieve new and greater development. Since the 18th National Congress of the Communist Party of China, historic achievements and changes have taken place in the cause of the Party and the state, which not only successfully promoted and expanded Chinese modernization, but also provided a more perfect institutional guarantee, a more solid material foundation and a more active spiritual force for Chinese modernization. We have completed the historical task of getting rid of poverty and building a well-off society in an all-round way, and entered a new development stage of building a socialist modern country in an all-round way. Based on the new development stage, implementing the new development concept, building a new development pattern and promoting high-quality development, China will achieve new and greater development.

　　The historic leap of China’s economic strength contains an important opportunity for structural optimization and upgrading. Since the reform and opening up, China’s gross domestic product (GDP) has grown at an average annual rate of about 9%; In the past decade, the average annual growth rate has exceeded 6%, and the economic strength has achieved a historic leap. In 2022, China’s GDP accounted for about 18% of the global economy, ranking second in the world. On the basis of continuing to maintain the advantages of complete industrial system, leading industrial chain supporting capacity in the world, and ranking first in manufacturing scale in the world, China has promoted the transformation and upgrading of traditional industries, promoted the rapid development of strategic emerging industries and advanced manufacturing industries, promoted the healthy development of digital economy, significantly improved its scientific and technological innovation capability, and continuously optimized its economic structure. Making full use of the advantages of China’s super-large-scale market, expanding domestic demand as a whole and deepening structural reform on the supply side, and forming a higher level dynamic balance between demand pulling supply and supply creating demand will continuously promote the optimization and upgrading of China’s economic structure and enhance our endogenous motivation to stabilize the basic economic disk and win the initiative in development.

　　Socialism with Chinese characteristics’s system is more mature and stereotyped, which provides us with an important opportunity to deal with uncertainty and turn crisis into opportunity. China’s socialist system has extraordinary organizational mobilization ability, overall coordination ability and implementation ability, and can concentrate on doing great things, difficult things and urgent things. Since the 18th National Congress of the Communist Party of China, our party has adhered to and improved the Socialism with Chinese characteristics system, promoted the modernization of the national governance system and governance capacity, and focused on the deployment of fundamental systems, basic systems and important systems that support the Socialism with Chinese characteristics system. With great political courage, we have comprehensively deepened reform, strengthened the reform of top-level design, resolutely eliminated the shortcomings of various institutional mechanisms, promoted the basic institutional framework in various fields, and achieved historic changes, systematic reshaping and overall reconstruction in many fields. At present, the century-old changes are accelerating, the changes of the world, the times and the history are unfolding in an unprecedented way, and the unstable and uncertain factors are increasing significantly. By giving full play to the advantages of Socialism with Chinese characteristics’s system, we can effectively cope with the uncertainty of the external environment, guard against and resist risks, and seize the opportunity to fight a strategic initiative war to turn danger into opportunity.

　　Firmly grasp the new strategic opportunities contained in the hundred-year change

　　General Secretary of the Supreme Leader pointed out: "Entering the new stage of development, profound changes in the domestic and international environment have brought a series of new opportunities as well as a series of new challenges, which are the coexistence of crises, the organic nature of crises and the turning point of crises." At present, the great changes in the world that have never happened in a century have accelerated their evolution, a new round of scientific and technological revolution and industrial transformation have developed in depth, and the international forces have been deeply adjusted, which has brought new risks and challenges as well as new strategic opportunities for China’s development.

　　The world’s scientific and technological revolution and industrial transformation have provided us with new opportunities to open up new fields and new tracks for economic development and to shape new development momentum and new advantages. At present, a new round of scientific and technological revolution characterized by intelligence, networking and digitalization is profoundly changing the production and lifestyle of human beings, and technological breakthroughs represented by new energy, new materials and biotechnology are reconstructing the future of social productive forces. In this round of scientific and technological revolution, China is no longer an outsider, but a participant, a runner and even a leader in some fields. We adhere to the strategy of innovation-driven development and give full play to the leading role of scientific and technological innovation. Firmly grasping the historical opportunity of this round of scientific and technological revolution and industrial transformation, we will certainly be able to open up new fields and tracks for economic development and shape new kinetic energy and advantages for development.

　　Economic globalization provides us with new opportunities to promote high-level opening up. In recent years, although the trend of anti-globalization has risen, unilateralism and protectionism have obviously increased, economic globalization conforms to the general trend of world development and is an irreversible trend of the times. China has adopted a more proactive opening-up strategy, actively participated in the international division of labor, more effectively integrated into the global industrial chain, supply chain and value chain, and more actively expanded foreign exchanges and cooperation. The average contribution rate of China’s economy to world economic growth has exceeded 30% for many years, and China has maintained its position as the world’s largest trader of goods for many years, ranking second in the world in terms of foreign capital utilization and ranking first in the world in terms of foreign investment. It has contributed to global economic growth and created more strategic opportunities for its own development. Conforming to the general trend, based on the national conditions, correctly choosing the path and rhythm of integration into economic globalization, and making full use of domestic and international markets and resources can accelerate the construction of a new development pattern and promote high-quality development.

　　The positive changes in the balance of international power provide us with new opportunities to strengthen cooperation with emerging market countries and developing countries. In recent years, the international power balance is undergoing unprecedented positive changes. The rise of emerging market countries and developing countries in groups has gradually improved their position in the world economy and played a role in the international industrial division of labor, which has driven the speed, breadth and depth of international pattern adjustment and is fundamentally changing the world political and economic map. As the largest developing country in the world, strengthening cooperation with emerging market countries and developing countries can not only complement each other’s advantages and promote the developing countries to enhance their endogenous development momentum, but also expand the external space for China’s economic development and create new strategic opportunities.

　　The reform of global governance system provides us with new opportunities to play a greater role in global governance. In the past few decades, the international economic power has undergone a profound evolution, but the global governance system has failed to reflect the new pattern, which is not representative and inclusive enough. The international community is increasingly calling for the reform of the global governance system. Together with other countries, China has promoted the development of the international order and global governance system in a more just and rational direction, promoted the development of economic globalization in a more open, inclusive, inclusive, balanced and win-win direction, and promoted the building of a community of human destiny, which not only creates a good international environment for the development of the world economy, but also brings new strategic opportunities for China’s development.

　　Economic fluctuation is a normal phenomenon in the market economy, and the economy always runs in fluctuation. We should not only see the short-term fluctuations, but also take effective measures to continuously promote the sustained improvement of economic operation. More importantly, we should correctly understand the long-term positive development trend of China’s economy, fully understand and make good use of new strategic opportunities, accelerate the construction of a new development pattern, continuously expand China’s economic strength, scientific and technological strength and comprehensive national strength, and enhance China’s viability, competitiveness, development and sustainability.

　　(The author is the former president of China Renmin University)

　　On April 25, according to Xinhua News Agency, Wang Guanghua, Minister of Natural Resources, announced at the National Conference on Registration of Natural Resources and Real Estate Ownership on April 25 that China has fully realized the unified registration of real estate.

　　This means that after ten years of hard work, a unified real estate registration system covering all land spaces and all real estate rights has been fully established, from decentralization to unification, from urban houses to rural homesteads, from real estate to natural resources.

　　China’s unified real estate registration system is basically formed, with the Civil Code as the guide, the Provisional Regulations on Real Estate Registration as the core, and the implementation rules, operational norms and local regulations as the supporting tools.

　　Unified registration of real estate to find out the "family property" of real estate

　　Li Yujia, chief researcher of Guangdong Housing Policy Research Center, pointed out that the primary significance of carrying out unified registration of real estate lies in implementing the Property Law, ensuring the security of real estate transactions and protecting the legitimate property rights of real estate owners; Secondly, integrate the information of real estate fragments scattered among various functional departments, find out the "family background" of real estate, provide basic data for policy formulation and implementation, and improve the efficiency and level of government governance. The greatest significance of carrying out unified registration of real estate lies in providing a foundation for modern national public finance and laying a foundation for China’s future tax reform.

　　The Central Finger Research Institute pointed out that in early China, every kind of real estate, such as land, grassland and forest, had corresponding registration system and certificate standard, which was prone to problems such as complicated management and disputes over real estate rights. As early as the Property Law promulgated in 2007, the unified registration system of real estate was formally put forward.

　　In March 2013, the Plan for Institutional Reform and Functional Transformation of the State Council proposed "strengthening the basic system construction and establishing a unified real estate registration system". In November of the same year, the the State Council executive meeting decided to integrate the real estate registration responsibilities scattered in multiple departments, and put forward the "four unifications" reform tasks of unified registration institutions, unified registration books, unified registration basis and unified information platform.

　　In 2016, official website, the Ministry of Land and Resources, issued the Detailed Rules for the Implementation of the Provisional Regulations on Real Estate Registration, marking the beginning of the full implementation of the unified real estate registration system. In 2018, the Ministry of Natural Resources announced that the basic platform for real estate registration information management has achieved national networking.

　　Jia Kang, a researcher at China Academy of Fiscal Science and the founding president of Huaxia Institute of New Supply Economics, pointed out that the unified registration of real estate was a clear thing to be done before. Now the official announcement that China has fully realized the unified registration of real estate must have its own specific internal considerations, but from the official information, it has not been linked to specific reform management and other aspects.

　　Jia Kang believes that from the perspective of modern governance of the country, the unified registration of real estate is an indispensable basic work. In terms of policy optimization, promoting reform, management and regulation, it is necessary to fully and truly grasp the situation first.

　　What does it have to do with real estate tax?

　　What is the relationship between national unified registration of real estate and real estate tax?

　　Jia Kang mentioned that the comprehensive realization of unified registration of real estate is logically linked to the promotion of real estate tax reform in the future. As the support of basic information, there is no doubt, but at present, whether the comprehensive realization of unified registration of real estate will immediately lead to real estate tax reform can only wait for the official specific implementation plan.

　　Chen Wenjing, director of market research of the Central Finger Research Institute, mentioned that the preconditions for collecting real estate tax include the unified registration of real estate in China and the nationwide networking. This time, the Ministry of Natural Resources pointed out that the comprehensive realization of unified registration of real estate in China means that the preconditions for collecting real estate tax are further improved. However, judging from the current real estate market, the national real estate market has recovered in the first quarter, and the recovery of supply-side indicators such as development investment and new construction is still weak, and the drag effect of real estate on the macro economy is still there. Since April, the activity of the new housing market has been insufficient. According to the data of the middle finger, the transaction area of new housing in key 50 cities in Zhou Du has decreased by about 20% compared with that in March. The sentiment and expectation of buyers are still unstable, and the short-term real estate market still needs policy support. At present, it is not the right time to conduct real estate tax pilot.

　　According to Chen Jie, director of the Housing and Urban-Rural Construction Research Center of Shanghai Jiaotong University, at present, there is not much inevitable relationship between the full realization of unified real estate registration and the real estate tax levy. Real estate tax is a local tax. Previously, the National People’s Congress Standing Committee (NPCSC) authorized the State Council to carry out the pilot work of real estate tax reform in some areas, but the unified registration of real estate is not entirely residential, but a unified registration system of real estate covering all real estate rights, so it is unnecessary to interpret it excessively. It can only be said that the unified registration of real estate is a technical support for the future real estate tax collection. As for when and where the real estate tax will be done, it is necessary to comprehensively consider various conditions, including market environment, institutional support and public recognition.

　　Zhao Xiuchi, a researcher at capital university of economics and business Mega-city Economic Development Research Institute and vice-president and secretary-general of Beijing Real Estate Law Society, believes that it is the general trend to realize the unified registration of real estate in an all-round way, which provides a basis for fully grasping real estate information and scientific decision-making, and also provides conditions for the collection of stock real estate tax. However, at present, the property market is in a downturn, and many policies to support the property market need to be introduced to promote the recovery of the property market and achieve a virtuous circle. At present, it is not appropriate to increase taxes, but to reduce taxes. Whether and how much to levy in the future should also be considered from the perspective of the whole real estate tax burden. On the whole, with the land transfer fee, the tax burden of the whole real estate is not light, and the tax burden should not be increased blindly.

　　What is the relationship with the people?

　　Besides real estate tax, what is the relationship between real estate registration and the people?

　　According to China Economic Net, after the registration of real estate is completed, citizens can make one-step inquiries at the designated office without going anywhere, so as to avoid overlapping or conflict of property rights. The unified registration of real estate is the basis of a series of major reforms, such as giving farmers more property rights, protecting farmers’ usufructuary rights of homestead, establishing a unified urban and rural construction land market, and collectively operating construction land "agricultural land entering the market".

　　In addition, many people hope that real estate registration can curb official corruption. The above-mentioned report of China Economic Net quoted experts as saying that although the original intention of unified registration of real estate is not to fight corruption, if the judicial organs, discipline inspection and supervision organs and so on inquire according to law, they can indeed quickly inquire about all real estate under the name of people, which will have a deterrent effect on corrupt officials.

　　Along this "only way", our party leads the people to make the tide of reform and opening up play an exciting movement in the land of China with indomitable enterprising spirit and magnificent innovative practice.

　　Keep the spirit of "breaking through", "creating" and "doing" style, adhere to the correct direction of reform and opening up, deepen reform and stimulate new development vitality, and expand opening up and promote reform and development.

　　From January to April, 14,533 foreign-invested enterprises were newly established nationwide, up 50.2% year-on-year and 11.5% over the same period in 2019; The actual amount of foreign capital used was 397.07 billion yuan, up 38.6% year-on-year, up 30.1% compared with the same period in 30.1%… … Not long ago, the Ministry of Commerce announced the situation of absorbing foreign capital in the first four months of this year. The data rising against the trend is constantly improving, which highlights the unique charm of China market and reflects the positive results of China’s continuous deepening of reform and opening up and continuous optimization of business environment.

　　Without reform and opening up, there would be no China today, and there would be no China tomorrow. In December, 2012, the Supreme Leader made his first visit to the local area after becoming the general secretary, and then came to Guangdong, which was "the first in China’s reform and opening up", and issued the call of "reform will not stop and opening up will not stop". Six years later, at the important historical node of the 40th anniversary of reform and opening-up, General Secretary of the Supreme Leader went to Guangdong to inspect again, and solemnly declared that "China will surely have new and greater miracles that will impress the world". Along this "only way", our party leads the people to make the tide of reform and opening up play an exciting movement in the land of China with indomitable enterprising spirit and magnificent innovative practice. Reform and opening up has become the most distinctive feature of contemporary China and the most distinctive character of contemporary the Communist Party of China (CPC) people.

　　How magnificent the historical process is, how extensive and far-reaching its influence is. In 1978, the Third Plenary Session of the Eleventh Central Committee of the Communist Party of China gave a resounding answer to the question of "Where is socialist China going?", which started the great journey of reform and opening up. For more than 40 years, from "what you can eat" to "what you can eat", from "buying by ticket" to "buying all over the world", through reform and opening up, we have made this country "the economy is on the verge of collapse and people’s food and clothing are a problem" jump to the second largest economy in the world; For more than 40 years, from "catching up with the times" to "leading the times", we have relied on reform and opening up to "fight our way out", so that this nation, which has been committed to great rejuvenation since modern times, has taken decisive steps on the journey of becoming rich and strong. For this reason, the Supreme Leader’s General Secretary called the promotion of reform and opening up and the cause of Socialism with Chinese characteristics, the establishment of the Communist Party of China (CPC) and the establishment of People’s Republic of China (PRC), the three major historical events in China since the May 4th Movement, and listed them as the three major milestones in realizing the great rejuvenation of the Chinese nation in modern times.

　　Reform and opening-up is only carried out when it is not completed. If we say that the reform of that year was an "incremental reform", most people can benefit from it; Then, when the reform enters the critical period and deep water area, more interests will be enhanced and adjusted. General Secretary of the Supreme Leader pointed out: "The easy and happy reform has been completed, all the delicious meat has been eaten, and the rest are hard bones." Hit the water in the middle stream, and those who are eager to advance; When people get halfway up the mountain, only the brave win. From bringing comprehensive deepening reform into the "four comprehensive" strategic layout to proposing that "the overall goal of comprehensive deepening reform is to improve and develop the Socialism with Chinese characteristics system and promote the modernization of the national governance system and governance capacity"; From deepening the reform of the economic system around "making the market play a decisive role in resource allocation and giving better play to the role of the government" to emphasizing that "all major reforms must be based on the law"; From the establishment of a free trade pilot zone to the joint construction of the Belt and Road Initiative … … The Communist Party of China (CPC) people in the new era hold high the great banner of reform and opening up, and have made great achievements in comprehensively deepening reform.

　　The reform and opening up has gone through thousands of waters in Qian Shan, but it still needs to cross mountains and rivers. Looking back at the centenary of the founding of the Party, we can better understand the truth that a country and a nation must advance in the logic of historical progress and develop in the trend of the times if they want to revitalize. Nowadays, there are still many complicated contradictions and problems on the road of reform. We have gnawed many hard bones but there are still many hard bones to gnaw at. We have overcome many difficulties but there are still many difficulties to overcome. At present, the century-old changes and the century-old epidemic are intertwined, the world has entered a period of turbulent change, and the instability and uncertainty have increased significantly. We will face more external environments that are against the wind and the current. At this time, we should maintain the spirit of "breaking through", "creating" and "doing" style, adhere to the correct direction of reform and opening up, deepen reform to stimulate new development vitality, and expand opening up to promote reform and development.

　　Only by standing on the peaks of history can we have a clearer insight into the times and grasp the direction of progress more accurately. Today, we are closer to the goal of the great rejuvenation of the Chinese nation than at any time in history, and we need reform and opening up to bring surging momentum more than at any time in history. We are duty-bound to carry out the reform and opening up to the end, strive to write more "spring stories" and strive to create new and greater miracles that will impress the world.

China news agency, Hong Kong, May 4 (Reporter Li Qiwei) The Hong Kong Polytechnic University (PolyU) won 15 awards at the 43rd Geneva International Invention Exhibition this year. Dr. Rong Jiafu from the Department of Applied Biology and Chemical Technology of PolyU said on the 4th that the catalyst he invented can catalyze waste oil into biodiesel, and the invention won the gold medal in the invention exhibition.

By mastering the precise technology of controlling the surface chemistry of materials, Rong Jiafu’s research team developed a new green biodiesel solid catalyst with high activity and long life for biodiesel raw materials. Rong Jiafu introduced his invention to reporters on the 4th. The catalyst is a kind of solid metal oxide, which is synthesized in a simple way, non-toxic and insoluble in water or oil. It can solve the sewage generated in traditional liquid catalysts and greatly reduce energy consumption, cost and pollution.

Rong Jiafu said that the raw materials of biodiesel can be vegetable oil, animal oil or waste oil. The fuel catalyzed by this catalyst can be directly used in the current diesel supply system, which can completely burn, reduce carbon monoxide emissions by about 80%, reduce fuel cost by half, and reduce engine loss. The invention can be applied to traditional transportation tools such as trains, buses, ships and the like.

Rong Jiafu said that the current production cost of biodiesel is relatively high, but the future production cost will be lower and lower. The next step for the industry is to consider improving the production process and large-scale production, and turning scientific inventions into truly useful market-oriented products.

At the press conference that day, Dr. Ye Weixiong from the Department of Industrial and Systems Engineering of PolyU also introduced the "Advanced Vehicle Parking Navigation Platform Based on the Internet of Things" invented by him, which includes four parts: "Xinhe Parking Application", advanced vehicle parking navigation system, middleware of wireless sensing braking network and intelligent parking system of wireless sensing braking network, and won a special gold award for judging.

Ye Weixiong said that there are problems of insufficient land and too many vehicles in Hong Kong. The platform integrates the latest technologies such as cloud services based on the Internet of Things, near-field communication technology and big data analysis, and can provide an efficient property management system for parking lot management companies in Hong Kong, alleviating traffic conditions in commercial areas and reducing air pollution.

Ye Weixiong said that his team started to develop the platform three years ago and received special funds from the Innovation and Technology Agency of the SAR Government. After successive experiments, more than 30 parking lots have used the system, and citizens can download mobile phone applications for use.

Founded in 1973, Geneva International Invention Exhibition is one of the oldest and largest invention exhibitions in the world. A total of 13 gold medals and 5 silver medals were won by 18 participating projects including companies and universities in Hong Kong Science Park. (End)