■: New Express journalist Chen

Photographic photography: reporters for the new press

Focus on eco-building

The area of the exhibition “粤coup stronger” focused on the initiatives of the broad east in the work of the Coup.

Eco-building for the Great Greening of Forests, Focusing on Forests, Wetlands, Wildlife, and Plant Ecology, is being conducted on the basis of national parks and national plant park systems, protected by mountains, mangroves, good human and natural harmony, and the transformation of green beauty ecology into inclusive human well-being.

The “Cooptonop clouds upstream” exhibition area is designed primarily to meet the needs of viewers on the line, to upgrade it on the basis of the fourth “Copuchea” micro-confidence procedure, to present the contents of the line online and to build a “ cloud exhibit” that can be seen at any time.

The “粤kop to the Future” exhibited scientific and technological developments in the form of, inter alia, graphics, physical models, software interactions and on-site interactions. Exhibitions showcased by machine producers, young people’s scientific and technological innovations and other Kop exhibits, reaching the role and effect of Cop in the form of diverse representations.

In-depth connections under the line + line

On the site of the event, journalists have seen a number of young people interested in the Chinese population’s balanced food stadium (2022 edition). Miss Lee, a member of the staff, said that, when watched by parents and small friends, it was possible to understand the food content recommended daily to ensure a nutritional balance.

“When the atomic nuclear test is shelled, the atomic nuclear genocidal will be broken into two and a half, and the atomic atomic atomic atomic atomic atomic atomic atomic atomic atomic vents other neutrons and then reacts accordingly.” Mr. Mohammed, Officer-in-Charge of the Department of the Institute for the Application of Nuclear Technology of the Provincial Geological Agency, introduced the nuclear fissile material demonstration teaching aids, three radio projectors, to help citizens gain a better understanding of the nuclear-related piping in the form of superficial play.

Under the line, Congregation has also strengthened the work of the Central Older Persons Copper, with a special “small age” section, with public recruitment of older persons in society and free participation in interaction. In addition, for promotional experience, the Cop workshops, the Copton parks were set up, where viewers were involved in a number of activities, such as manual production, light competition, and the AR-code collection cards, to reach knowledge in interaction.

On the line, the “Kipgong Year” procedure has been upgraded to an optimal level, with functions covering graphs, videos, live, cloud experience, “Travelling” collections, sweeping codes, etc., with view to reaching a view. At the same time, the Kopik will invite a number of experts to the site for thematic sharing and interaction, and will be broadcast simultaneously in the “Copponghua” small process. The professional facilitators, in the form of live webcasts, showcase the ideas and the bright spots of the Year of Hiroshima, which have gained a richer experience of clouds.

Long-term trends in the new energy sector are becoming clearer as the carbon-neutral and carbon-growth policy continues. Although in the first quarter of 2023, as a result of the decline in subsidies, the demand for new energy vehicles was partially overtaken by the end of 2022, with a sharp drop in the price of lithium carbonate, a drop in the prices of cars, a decline in consumer currency and a slowdown in overall sales of new energy vehicles, the market still believed that the new energy sector was expected to continue to grow at a high rate.

Presently, the 2022 annual and 2023 quarterly reports of the new energy automobile industry market company have ended, benefiting from high-quality vehicle delivery, consumer stimulus policies, the continuation of the new energy industry in 2022, and the demand for downstream throws has also contributed to the steady growth of power battery engines and a high growth in the performance of the upstream lithium resource enterprises.

New energy competitions continue to be a cause for concern today. Orientale securities believe that “in the medium to long term, fuel trucks, refuelling stations will only become the past with the expansion and optimization of the wheel, the continued reduction in the cost of acquisition and use of vehicles. The current global new energy vehicle penetration rate is only 10 per cent, with vast space worldwide by 2030, long-term shortages of mineral resources, battery materials, and the industrial chain remains the magnet of the stars.”

01

High performance in the upstream chain of sale of whole vehicles

Rapid growth in new energy vehicles has become a global trend. Data show that in 2022, the global distribution of new energy vehicles was estimated at 10.59 million, an increase of about 72 per cent, a slight decrease from 2021, but still a high growth rate under the high base figure.

Our new energy vehicle growth has also been relatively rapid, with more innovative sales. According to CEA data, in 2022, there were 68.7 million new domestic energy vehicles, representing an increase of 95.9 per cent, in the first quarter of 2023, and 26.2 per cent, respectively.

As one of the ends of new energy sources, downstream demand has flourished and industrial chain performance has grown rapidly. In the new energy vehicle industry chain, coverage ranges from upstream resources, lithium power equipment to medium-trip tripolar, iron lithium polar, negative materials, insulated mening, electrolysis, copper arsenic, aluminium arsenic, additives, structural, structural materials, the Tetra supply chain, heat management, batteries, electric power control, and re-entry, bus, filling, storage capacity.

According to the Chinese Securities Survey, 101 listed companies in the new energy automobile industry chain were able to account for a combined operating income of 25,257 billion yuan in 2022, an increase of 59.8 per cent in the same ratio, with a net return of £8 billion, an increase of 139.3 per cent in the same ratio. By the first quarter of 2023, the performance of companies in the new energy automobile chain market had been reversed, with 101 industrial chain-listing firms achieving a combined income of $67.7 billion, a growth of 29.7 per cent, with a net return of $32.5 million, a decrease of 0.4 per cent.

In the area of the new energy vehicle industry chain breakdown, in 2022, batteries, yuan renminbi and iron lithium were most visible, with a growth rate of 12.3 per cent, 98.8 per cent, 36.2 per cent, battery in the first quarter of 2023, iron lithium potassium and storage, respectively, of 70.3 per cent, 58.9 per cent and 47.8 per cent.

In terms of the net profit from the incapacitation of the mother, automobiles, batteries, yuan renminbi, lithium lithium, aluminium plunges and upstream resources have increased. As a result of the boom in downstream demand and rising resource prices, in 2022, the lithium, bauxite and the incapacitation of upstream resources were 8.6 billion yuan renminbi, 1.6 billion yuan renminbi, 63.3 billion yuan renminbi, a 17.4 per cent increase, 398.9 per cent, 33.6 per cent, and in the first quarter of 2023, batteries, storage capacity grew rapidly, with a net profit increase of 49.2 per cent and 32.9 per cent respectively.

In 2022 and in the first quarter of 2023, all vehicles, batteries, upstream resources, withholdings of non-net profit sizes were in the first three. In the case of the withholding of non-net profits, in 2022 net profits in the three above areas accounted for 66.81 per cent of total net profits in the industrial chain. Among these, upstream resource enterprises have the highest profitability, with an increase of 33.6 per cent in the lithium industry, the lithium industry, the cobalt-rich industry, the typhoid cobalt industry, the valorization group, the seven upstream resource enterprises with a new lithium power in 2022, with a net profit of $63.3 billion in 2022, followed by a growth of 33.6 per cent in the automobile and battery sectors, with $321 billion and $32 billion respectively.

In 2022, the average industry rate for 101 listed companies was 24 per cent, with an average rate of 15 per cent for full vehicles, 18.5 per cent for batteries, and 40.7 per cent for upstream resources. In the first quarter of 2023, the average Māori ratio for vehicles, batteries and upstream resources was 14.1 per cent, 19 per cent and 30.6 per cent, respectively. Among these, the average Māori rate of upstream resources has declined significantly, mainly as a result of changes in the price of carbon lithium leading to a decline in business profits.

February

Improved profitability of new power vehicles

The total income of the entire car block, Biyadi, the Hiroshima Group, the Long-run vehicle, the long-run car and the seven companies of the “small” sector grew by 48 per cent in 2022, with a net profit of 145 per cent. Total income grew by 33 per cent in the first quarter of 2023, with a 10 per cent decline in net profits. In response, the Chinese securities believed that, mainly due to the lower prices of cars and the high expectations of consumers, the volume of sales was lower, affecting net profit levels, and that sales were expected to increase significantly in the second quarter as the price stabilized.

In terms of profitability, the average rate of Māori per block in 2022 was 15 per cent. The size of the non-net profits withheld in the 2022 years of Biyadi, the Hiroshima Group, the Long City automobile, the Longer-Antile and the Light, respectively, is reduced by 17 per cent, 7 per cent, 19.4 per cent, 20.5 per cent, 10.4 per cent, 19.4 per cent and 11.5 per cent.

Biyadi, as a global new energy vehicle, received $42.461 billion in 2022, an increase of 96.2 per cent, as compared to a net gain of 16.622 million, an increase of 45.86 per cent, and a few profitable vehicles in the new energy industry. On the other hand, as a representative of the new forces of the car, “increased”

Q: What is the first drum taken to a bleach friend? What is the feeling that LPL is killed today?

Cow is said to be forced. The killing of 1,000 was very heart.

Q: What idea was the second Bureau operating in the other Blue Zone with a wave of 2 hits?

Missing: this wave was our mad operation, after which he felt stirred and thought he was very cattle.

Q: 2v4 that saw some risk?

Missing: There is no bar, because I am cat, I follow him.

Q: 2v4, 2nd, 2nd, 2nd, 2nd, How can this wave be communicated?

Ruler: It was first confirmed that there was no major advertisement of the opposite, and follow-up I felt that there could be little, whether 2v3 or 2v4.

Q: What do we want to say that after the beginning of the war, with 2:0 quick wins for competition?

knight: 2-0 a.m.

Q: Does today’s own exercise fall within expectations? Can it be evaluated?

Kanavi: Today is a normal level and then a win.

Q: What do we want to say to the team?

Trainers: There is a great deal to win today, and there are some power gaps with our counterparts today, hoping that we can also try to deal with the next competition and training.

New wave declaration: the posting of this text on the new wave does not imply approval of its views or confirmation of its description for the purpose of communicating additional information.

“For me, cosmetics is a valuable ally that allows everyone to express their personality without age, gender and race,” ferragni said in a statement. She also stressed in the statement that this product “makes the products of Chiara ferragni brand more comprehensive.”

As early as 2019, when Chiara ferragni and Lanc ô me launched the capsule beauty series, they cooperated with Douglas. When the beauty capsule series, the series has many similar details with the series to be launched now.

This product features a symbol of bright pink packaging and a blue eyed logo that always exists. It defines all products of Chiara Ferragni, including three colors of lipstick, mascara, eye shadow palette, prominent blush and eyebrow gum. Prices range from 20 euros to 49 euros.

Now, comics have become a reality! Researchers have created a kind of metamaterial. When you stretch it to a certain extent, it will activate the energy stored in the material. Once you let go, it will be explosive. Moreover, they can program the material so that they can design and control metamaterials on demand.

The creator of this metamaterial is Liang Xudong, associate professor of Harbin University of Technology (Shenzhen), and his team. Recently, this paper was published in the Journal of the National Academy of Sciences (PNAs).

The review experts gave a high evaluation of this paper, saying that “this work is of high quality and has made innovative contributions to the development of Lixue metamaterials”.

Metamaterial formula: magnet + rubber

We all played with a rubber band when we were young. When you stretch it hard and release it suddenly, it will pop up in an instant. Imagine a super rubber band. When you stretch it to a node and let go, it will fly super far.

This imaginary super rubber band is a “magneto elastic metamaterial” that the team is creating. This metamaterial has two protagonists: magnet and rubber.

What kind of “magic” will be produced by the combination of two unrelated materials?

“We use a laser cutting machine to ‘dig’ the rubber out of a specific hole structure and embed a magnet in the hole. When stretching the material, it can absorb and release huge energy by using a physical property called ‘phase transition’.” Liang Xudong, the first author and corresponding author of this article, introduced it to China Science Daily.

Open pore structure phase (above), closed pore structure phase (below).

The concept of “phase transition” is unfamiliar to most people. In fact, it can be seen everywhere in life.

When a material changes from one state to another, a “phase transition” occurs. For example, the change of solid, liquid and gas is a very typical “phase transition”. When ice melts into water, or water turns into steam, you have to absorb a lot of energy; And let the water solidify into ice, it needs to release a lot of energy. Ice and water, water and steam, are two “phases” of one substance.

However, these “phase transitions” generally occur at the atomic and molecular scales, and it is difficult to capture and manipulate them.

This research should be carried out at the macro level, and the selected materials are not superior. The magnet used in the experiment was 3mm in diameter and was purchased in ordinary stores together with rubber. It is such a common material that has created extraordinary super power.

“Phase transition” is the core of super ability, which comes from the superposition effect of two kinds of energy.

Liang Xudong explained that magnets can attract and repel each other. When embedded in rubber, the mutually attractive magnets will close the holes, and the mutually repulsive magnets will open the holes. This is the energy of the magnetic field. When the rubber is stretched hard, the rubber itself will undergo mechanical deformation and store some elastic properties. When these two energies are superimposed, they will be transformed into the kinetic energy of metamaterials and release stronger explosive force.

Get inspiration from nature

Nature is man’s best teacher: inspired by birds, man invented the plane; Seeing the diving of fish, he invented the submarine; Inspired by bats, radar was invented… This study is no exception.

“We got inspiration from some creatures that can respond quickly like lightning. For example, the fly trap can close quickly, so that the flying insects have no time to escape.” Said Alfred J. Crosby, CO corresponding author of the article and professor of polymer department at the University of Massachusetts Amherst.

Liang Xudong takes mantis shrimp as an example, “mantis shrimp is a very magical creature. Its front claws can accelerate to a speed of 30 meters per second in just 0.01 seconds under the great resistance of the underwater environment, smashing shells or repelling predators like a hammer.”

This short-time and very high-speed explosive movement is the experimental effect that the research team wants to achieve based on the mechanical research of soft matter under the condition of high-speed deformation.

The purpose of analyzing the experimental principle is to better control it and lay a foundation for the future application stage. After repeated experiments, they found that changing three aspects can control the “phase transition” - magnetic field, the arrangement and size of holes, and the choice of rubber materials.

Paper matching

To this end, they also developed a mathematical model that can program materials to design and control “phase transition” on demand. “You can make any type of ‘phase change’ material you want.” Crosby said.

This greatly broadens the application prospect.

For example, it is combined with software robot. In recent years, with the rapid development of science and technology, a software robot has been developed, which can enter the human body to deliver drugs and drill into blood vessels to remove thrombus.

“The results we have achieved can be used to make the energy unit of the soft robot. By storing and outputting energy, the soft robot can produce high-speed movement, just like the front claw of the mantis shrimp, which can knock out the thrombus in an instant.” Liang Xudong said.

In addition to the application of energy release, energy absorption can also make great achievements in the field of protective materials.

Automobile manufacturers attach great importance to the production of automobile anti-collision structure. In case of violent collision, they can also slow down the impact, absorb energy and dissolve most of the impact energy through the “phase change” principle of metamaterials, so as to achieve the purpose of protecting the passengers in the car.

This skill can also be used in the production of new safety helmets, and even applied to the arresting tools of aircraft carriers.

Interdisciplinary “Carnival”

Liang Xudong graduated from Sun Yat sen University in 2010, majoring in theoretical and applied mechanics. Then he was escorted to Tsinghua University to study for a master’s degree in mechanics, and obtained a master’s degree in 2013.

Later, he went to the University of California, San Diego to study, majoring in mechanical engineering. Cai Shengqiang, a professor in the Department of mechanical engineering, is a “noble man” of Liang Xudong. “It is he who led me into the door of scientific research. He taught me a lot of research methods and ideas, which made me have a strong interest in scientific research.” Liang Xudong said.

At this time, Liang Xudong’s research work focused more on solid mechanics and did not get involved in the research of mechanical metamaterials under high-speed deformation. Until he became a postdoctoral at the University of Massachusetts Amherst, his research vision suddenly opened up.

Mentor Crosby is