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According to Bloomberg News reported on May 20, copper prices soared to their highest level in history, continuing their months-long rally. The rally was driven by financial investors who poured into the market amid predictions that supply shortages would intensify.

Copper futures prices on the London Metal Exchange rose more than 4%. Copper prices topped US$110,000 a tonne for the first time, but gave up some of their gains in afternoon trading.

For months, banks, mining and investment funds have been touting copper’s bright long-term prospects. In the past few weeks, investment has poured into the market.

Several developments in 2024 have emboldened copper bulls and attracted more and more speculative funds. Rumors are rampant that tight supply of copper ore has caused smelters to cut production. Investors predict that a surge in copper use in fast-growing sectors such as electric vehicles, renewable energy and artificial intelligence will offset the drag caused by traditional industries such as construction.

In early April, copper prices began to rise. Last week, a short squeeze on the New York futures market triggered a global rush to buy copper, and copper prices rose into overdrive.

Investors, traders and mining executives have been warning for years that the world will face severe copper shortages as demand for green industries surges.

However, many people involved in physical transactions warn that copper prices are outperforming reality. Demand remains relatively tepid, especially in China, the largest buyer, where inventory levels remain high and suppliers of copper wire and rod have been cutting production.

Since the beginning of this year, copper prices have risen by more than a quarter, leading the overall increase in major industrial metals. Like copper, gold prices also rose to record levels. Both metals are supported by optimism that the Federal Reserve will start cutting interest rates this year. (Compiled by Qiu Fang)

　　The frame materials of electric wheelchairs are various, and each material has its own unique characteristics, which is suitable for different types of users. First of all, the mainstream frame materials are carbon steel (steel), aluminum alloy, aviation titanium alloy and carbon fiber. Carbon steel has relatively low cost and strong load-bearing capacity, but its disadvantage is that it is bulky and easy to get wet and rust. Aluminum alloy is light and relatively better in corrosion resistance, so many electric wheelchairs on the market use aluminum alloy as the frame material.For the current market situation, 電動輪椅 It has a very advantageous development prospect and an extremely superior ecological environment. https://www.hohomedical.com/collections/light-weight-wheelchair

　　Aviation titanium alloy is a high-end choice, with high strength and corrosion resistance, but the price is correspondingly high, which is usually used in high-end and portable electric wheelchairs.

　　Titanium alloy is a mixture of different elements such as titanium, aluminum, iron and vanadium, which has the characteristics of high strength, corrosion resistance and light weight. Carbon fiber is a composite material made of carbon fiber and resin, which has the characteristics of high stiffness, high strength and light weight. From the perspective of material composition, titanium alloy and carbon fiber have their own advantages, the strength of alloy is higher, but the density of carbon fiber is lower, so the weight is lighter. When it is necessary to reduce weight, it is more suitable to use carbon fiber, which is more durable and stronger than titanium alloy, so the electric wheelchair made of carbon fiber is close to 10 thousand yuan.

　　When choosing the frame material, we should not only consider the material itself, but also pay attention to the design and function of the frame. For example, folding electric wheelchairs bring great convenience to those who are inconvenient to bend over or have disabled hands, so that they no longer have to work hard to fold electric wheelchairs; The conventional electric wheelchair is comprehensive, affordable and stable, suitable for a wider range of users.

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Rio de Janeiro, March 12 (Reporter Zhao Yan) The Brazilian Federal Senate announced at a plenary session on the 12th the establishment of a parliamentary investigation committee to investigate cases of fixing football match results, hoping to severely punish match-fixing.

This committee consists of 11 members, appointed by representatives from all parties in Parliament. According to a report by Brazil’s “Sao Paulo” on March 4, of the approximately 9000 Brazilian football matches monitored by sports betting radar in 2023, 109 (approximately 121% of the total) were suspected of playing match-fixing, ranking first in the world.

On the 11th of this month, the Prosecutor’s Office of the Federal District of Brasilia issued a search and arrest warrant against two Santa Maria players, accusing them of directly participating in match-fixing in two games in the state league. Evidence collected by the investigation showed that the two men used methods including deliberately being awarded penalty kicks, deliberately marking errors, and even making an own goal to make the team lose the game.

In December last year, the Brazilian Congress passed the online sports betting bill, which officially came into effect after being approved by President Lula. At the end of January this year, the federal government established a Bonuses and Gaming Secretariat, which is responsible for regulating and supervising the sports betting and online gambling industries.

　　Before introducing different configurations of electric wheelchairs, let’s first understand the basic structure of electric wheelchairs. Electric wheelchair is usually composed of motor, controller, battery, frame and other main parts. The motor is responsible for driving the wheels, the controller controls the speed and direction of the motor, the battery provides electric energy, and the frame supports the whole structure. Different configurations of electric wheelchairs are different in these parts, which will be introduced in detail below to help you understand.understand 電動輪椅 In order to better serve customers and reflect the core competitiveness of products. https://www.hohomedical.com/collections/light-weight-wheelchair

　　Motor: The motor of electric wheelchair is its core component, which directly affects the performance of wheelchair. At present, the electric wheelchairs on the market usually adopt DC Motor and AC Motor. DC motor usually has a high speed and is suitable for use on flat roads, while AC motor has a large torque and is suitable for driving on ramps and uneven roads. In addition, the power of the motor is also a key factor in the selection. The greater the power, the stronger the climbing ability and load capacity of the electric wheelchair. Therefore, when choosing an electric wheelchair, it is necessary to choose the appropriate motor type and power according to the user’s needs and specific use environment. In the difference between electric wheelchairs, it is necessary to distinguish between brush motors and brushless motors, and between AC motors and DC motors.

　　Brushed DC motor refers to a DC motor that uses a carbon brush to contact with a rotating armature to exchange polarity and provide current. Brush provides current to armature through power supply when armature rotates, so it is also called carbon brush motor. Its advantages are simple structure and low use cost, but the brush is easy to wear and has limited service life, and at the same time, the brush will also produce electric spark interference, which will lead to high noise of the motor and is not suitable for high-precision applications.

　　Brushless DC motor refers to a DC motor that uses an electronic commutator to control the phase sequence of the motor, without using a brush to contact the armature. Its advantages are long life, high efficiency, low noise, stable operation and fast response, so it is widely used in high-precision application fields such as high-performance power tools and electric vehicles. Disadvantages are complex structure and high cost.

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On May 22, the Chinese Embassy in Japan issued a document reminding Chinese citizens in Japan to guard against minor crimes.

Japan implemented the “Minor Offences Law” in 1948, which stipulates clear penalties for 33 seemingly minor acts but may have adverse effects on public order. Some foreign tourists have been punished for not understanding the relevant laws. The Chinese Embassy in Japan summarized the behaviors that were easily ignored and reminded Chinese citizens in Japan and tourists coming to Japan to take precautions.

1. Unauthorized sneaking into unguarded houses, buildings or ships, or entering prohibited places, other people’s fields, disaster or crime scenes without authorization.

2. Carry without authorization knives, iron bars and other instruments that can harm others or tools that can be used to invade other people’s homes.

3. Refusing to obey the instructions of public officials or rescue personnel in special circumstances such as earthquakes, fires, and traffic accidents.

4. Make a fire in flammable places such as forests or near flammable materials such as gasoline.

5. Post advertisements and notices in other people’s homes without authorization, or remove or deface other people’s logos at will.

6. Declaring that he holds public office, title, degree at home and abroad, or wears legal uniforms or similar clothing that is incompatible with his identity.

7. Playing pranks at public or private ceremonies and hindering the ceremony.

8. Make noise that hinders others and refuse to correct it. Obstructing others from walking normally, or stalking others is disturbing.

9. Jumping in line in public places, being rude in words and deeds, spitting everywhere, and turning off sign lights or street lights for no reason.

10. Throw away garbage and waste at will.

All of the above acts are suspected of violating the “Minor Offences Law” and may be subject to fines, detention and other penalties. Chinese citizens in Japan are requested to abide by Chinese and Japanese laws, respect local religious beliefs and customs, and protect themselves. In case of emergency, report the case to the Japanese police in a timely manner and contact the embassy or consulate in Japan for help.

Japan alarm:110, 03-3501-0110 (Chinese), you can call #9110 overseas

Ministry of Foreign Affairs Global Consular Protection and Services Emergency Hotline (24-hour):+86-10-12308,+86-10-65612308

Consular protection and assistance from the Embassy in Japan: +81-3-6450-2195

Consular protection and assistance at the Consulate General in Osaka: +81-6-6445-9427

Consular protection and assistance at the Consulate General in Fukuoka: +81-92-753-6483

Consular protection and assistance at the Consulate General in Sapporo: +81-11-513-5335

Consular protection and assistance at the Consulate General in Nagasaki: +81-95-849-3311

Consular protection and assistance at the Consulate General in Nagoya: +81-52-932-1036

Consular protection and assistance at the Consulate General in New Zealand: +81-25-228-8888

(General reporter Yao Ruixin)

　　The controller is the core component of the electric wheelchair, which can also be understood as the “steering wheel” to control the direction of the wheelchair, and is responsible for the operation of the linkage motor. Its quality directly determines the maneuverability and service life of the electric wheelchair, and the functions and performance of the controller equipped with different configurations of electric wheelchairs will be different. Advanced electric wheelchairs are usually equipped with intelligent control system, which can freely adjust the speed and direction according to the user’s habits and environment to provide a more comfortable driving experience (controllers can be divided into basic models/with folding function/with reclining function/multi-function buttons according to the operation panel) and other feedback functions of intelligent voice broadcast. However, the basic electric wheelchair usually has simple control function, and it is not equipped with the common functions of intelligent voice broadcast and mobile phone remote control adaptation. Individual manufacturers have also added usb-adapted mobile phone charging port and lighting lamp to the controller.Since then, more and more people have found that 電動輪椅 The value of, thus affecting the choice of many people. https://www.hohomedical.com/collections/light-weight-wheelchair

　　Most imported brand controllers are composed of upper and lower controllers, while most domestic brands only have upper controllers. Generally, the brushless ones in China are generally divided into upper controller and lower controller, and most of the brushes have only upper controller. Among the imported controller brands, PG in Britain and Dynamic in New Zealand are widely used. Domestic brands include Wuyang and Shiyou, Shanghai Zhilian Aomang, Nuole, Maikong, Pilotage, etc. Comparatively speaking, imported brands are better, and the cost and price are higher than domestic brands. However, in recent years, the rise of domestic products can also meet the needs and experiences of most consumers. You can also use the following operations to judge whether the controller is good or bad.

　　1. Turn on the power switch and push the controller to feel whether the vehicle is stable when starting; Release the controller and feel whether the car stops immediately after a sudden stop. It is advisable to judge whether the controller is normal by starting and stopping slightly.

　　2. Control the rotating car to rotate 360 degrees in situ, and feel whether the steering is smooth and flexible, subject to the steering sensitivity.

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The second Room N incident broke out at Seoul National University in South Korea. According to South Korean media reports on May 22, as of now, as many as 61 female victims have been confirmed, including 12 students at Seoul National University.

The Seoul Police Department has so far arrested five gang suspects, two of whom are graduates of Seoul National University. They are suspected of making and privately spreading them on the instant messaging software T from July 2021 to April this year. Pornographic photos or videos synthesized using deep counterfeiting technology.

According to the police, in the process of arresting the main offender Park, the private reporting group Tracking Group Sparks, which first reported the incident in Room N five years ago, provided decisive assistance. Yuan Enzhi, who was in the pursuit team, disguised himself as a male, entered the private live broadcast room to lurk for two years, and contacted Park. This year, he lured Park to meet offline to help the police successfully capture him.

　　The frame materials of electric wheelchairs are various, and each material has its own unique characteristics, which is suitable for different types of users. First of all, the mainstream frame materials are carbon steel (steel), aluminum alloy, aviation titanium alloy and carbon fiber. Carbon steel has relatively low cost and strong load-bearing capacity, but its disadvantage is that it is bulky and easy to get wet and rust. Aluminum alloy is light and relatively better in corrosion resistance, so many electric wheelchairs on the market use aluminum alloy as the frame material.For the immediate pressure, 電動輪椅 With its own coping style, it can break the predicament and usher in a new life through the quality of the product itself. https://www.hohomedical.com/collections/light-weight-wheelchair

　　Aviation titanium alloy is a high-end choice, with high strength and corrosion resistance, but the price is correspondingly high, which is usually used in high-end and portable electric wheelchairs.

　　Titanium alloy is a mixture of different elements such as titanium, aluminum, iron and vanadium, which has the characteristics of high strength, corrosion resistance and light weight. Carbon fiber is a composite material made of carbon fiber and resin, which has the characteristics of high stiffness, high strength and light weight. From the perspective of material composition, titanium alloy and carbon fiber have their own advantages, the strength of alloy is higher, but the density of carbon fiber is lower, so the weight is lighter. When it is necessary to reduce weight, it is more suitable to use carbon fiber, which is more durable and stronger than titanium alloy, so the electric wheelchair made of carbon fiber is close to 10 thousand yuan.

　　When choosing the frame material, we should not only consider the material itself, but also pay attention to the design and function of the frame. For example, folding electric wheelchairs bring great convenience to those who are inconvenient to bend over or have disabled hands, so that they no longer have to work hard to fold electric wheelchairs; The conventional electric wheelchair is comprehensive, affordable and stable, suitable for a wider range of users.

period My WordPress Many adjustments have also been made, and the direction of product research and development has been reversed, in order to better meet the market demand. https://gjsign.com

According to a Reuters report on March 18, Russian President Vladimir Putin issued a warning to the West on the same day that a direct conflict between Russia and the US-led NATO military alliance would mean that the planet was only one step away from World War III, and said that almost no one wanted to see such a scene.

French President Macron said last month that he would not rule out the possibility of deploying ground troops to Ukraine in the future. Many Western countries have distanced themselves from the idea of sending troops, but some countries (especially in Eastern Europe) have expressed support.

The report said that when asked about Macron’s remarks and the risks and possibilities of a conflict between Russia and NATO, Putin said mockingly: Everything is possible in the modern world.

After winning the largest landslide victory in Russia’s post-Soviet history in the presidential election, Putin told reporters: Everyone knows that this is only one step away from the full-scale outbreak of World War III. I don’t think anyone would be interested in this situation.

The conflict in Ukraine triggered the deepest crisis in Moscow’s relations with the West since the Cuban Missile Crisis in 1962. Putin has often warned about the dangers of nuclear war, but also said he never felt the need to use nuclear weapons in Ukraine. (Compiled by Yang Xinpeng)

Related news:

Putin thanked the Russian people for their support after winning re-election with a record advantage

According to a report by the TASS news agency on March 18, data released by the Central Election Commission of Russia showed that more than 90% of the votes had been counted. Current President Vladimir Putin was far ahead with a vote rate of 87.21%, winning re-election again with a record advantage.

According to reports, Russian Communist Party candidate Nikolai Haritonov ranked second with 428% of the vote, followed by New Party candidate Vladislav Davankov with 393% of the vote, ranking fourth is Liberal Democratic Party candidate Leonid Slutsky, with 316%.

As of 20:00 on the 17th, Moscow time, most polling stations in Russia have been closed.

Data released by the Russian Central Election Commission also showed that as of 20:24, the voter turnout rate in the Russian presidential election was 7333%. The voter turnout rate in this election has set a record high in contemporary Russian history. The previous record was set in 1996, when the voter turnout rate was 6981%.

The report emphasized that preliminary statistics on Putin’s vote rate also set a record high in contemporary Russian history. In 2018, his vote rating in the presidential election was 7669%, compared with 636% in 2012.

According to a report by the Russian News Agency on March 18, Russian presidential candidate and current President Vladimir Putin said during a visit to the campaign headquarters in Moscow that he worked for the interests of the Russian people and relied on their support.

He said: The choice of the Russian people is very important to me. I rely on the Russian people and work for the interests of the Russian people and the country. I am very grateful to Russian citizens for their support.

Putin expressed gratitude to Russian citizens. He also said that Russia will make every effort to achieve national development goals in all aspects. (Compiled by Zhao Zhipeng and He Yingjun)

　　With the progress of science and technology, the design and technology of electric wheelchairs are constantly improving. In the 1960s, electric wheelchairs began to use rechargeable batteries, which made them last longer and charge more conveniently. In the 1970s, the materials and structures of electric wheelchairs began to be improved, making them more portable and stable. In 1980s, with the development of computer technology, intelligent control system was introduced into electric wheelchairs, which made the wheelchairs operate more accurately and the user experience better. In addition, the battery technology of electric wheelchairs has also made a revolutionary breakthrough.Even if there are obstacles to moving forward, 電動輪椅價錢 We should also persevere, forge ahead bravely, cut waves in the sea of the market, hang on to Yun Fan and strive for the first place. https://www.hohomedical.com/collections/light-weight-wheelchair

　　The traditional lead-acid battery is gradually replaced, and the new lithium battery and fuel cell technology are applied to electric wheelchairs, which greatly improves the endurance and service life of wheelchairs. These technological innovations not only make electric wheelchairs more environmentally friendly, but also provide users with longer use.

　　The types of electric wheelchairs are becoming more and more abundant. According to different functions and usage scenarios, electric wheelchairs can be divided into indoor electric wheelchairs, outdoor electric wheelchairs, folding electric wheelchairs and many other types. Indoor electric wheelchairs are usually small and suitable for use in indoor environments, such as homes and hospitals.

　　Outdoor electric wheelchairs are more powerful, have better passability, and are suitable for outdoor complex road conditions. The folding electric wheelchair is portable and can be carried and stored conveniently. Modern electric wheelchairs use lightweight aluminum alloy frames, intelligent control systems and high-performance batteries. The application of these technologies makes the electric wheelchair more intelligent, convenient and comfortable.