Photographer Annette LeMay Burke has brought to readers a collection of photo books to deceive the eyes of the landscape of the West of the United States. The mobile base stations here are “disguised” as giant palm trees and cactus. “Originally, what I saw was a beautiful landscape photo. However, something wasn’t right. Some giant cactus, a pine tree growing in the arid desert… Upon closer inspection, I don’t see them as real trees,” said Ann M. Jastrab, Executive Director of Carmel Center for Photographic Arts, California (USA). A fake cactus used to “camouflage” electric poles. Photo taken in Phoenix, Arizona. These portable plants are not only found in the West, but also in many parts of the United States. This is the solution to prevent visual pollution caused by constructions. Power lines, cables, broadcasting poles… were growing densely, causing the landscape to be ruined. This forces suppliers to consider a more landscape-friendly, environment-friendly solution. A palm tree broadcast mast in La Mesa, California. How to “camouflage” depends on climate, terrain… Palm tree-shaped stations are usually located in warmer regions. Meanwhile, the pine tree image is used in colder climates. Some places use other fancy images. Pictured, a bison-shaped mobile base station in Colorado. Outside the church in Mesa, Arizona, cross-shaped cell towers are used. Aesthetic factors are always prioritized by service providers when choosing images. Sophisticated “camouflage” images were captured by Burke. According to this photographer, “camouflage” mobile base stations first appeared in Denver, Colorado in 1992. Since then, they have appeared in more places. The cost for the “coats” is also increasingly expensive, depending on the authenticity of the design. While helping to reduce visual pollution, these fake trees pose a bigger problem for the environment. Over time, their plastic fake leaves fall all over the road, adversely affecting the ecosystem. “What was created to limit visual pollution leads to plastic pollution. In the future, these artificial trees will probably be wiped out when smaller 5G stations appear,” Burke shared.

Up to now, VHT has registered a total of 276 industrial property applications, of which in 2020 it completed research on 48 core technologies applied to products, registered and accepted 66 patent applications. VHT has been granted 4 new international patents by the US Patent and Trademark Administration (USPTO). VHT is also granted 19 domestic patents, 5 utility solutions and 7 exclusive designs. Along with that, VHT has 25 articles published and presented at prestigious national and international journals and scientific conferences. According to VHT Deputy General Director Nguyen Cuong Hoang, the protection of intellectual property by registering national and international patents is an important basis for VHT to be the owner of core technology, ready for integration. It has full competitiveness with international corporations, affirming Viettel’s leading position in the field of research and development of “Make in Vietnam” products. 4 VHT’s patents are protected exclusively in the US: 1. “Random data division in multiprocessor distributed systems” – OCS Research Center. 2. “Method of detecting water surface targets in noisy environment, application in coastal radar station” – Radar Center. 3. “Invention of power steering mechanism for parallel robot by spring system with constant power assist” – Center for Simulation Modeling. 4. “Method of adjusting and controlling the power of the receiving link adapting to the transmission environment in the base station system” – Broadband Radio Equipment Research Center. Mr. Nguyen Cuong Hoang said that in order to achieve success in the past period, VHT always closely follows the viewpoint in the field of research and development in the word “VTOPIC”. Specifically: V – Virtual, using simulation tools to support the research process; T – Technology, VHT determined to follow the field of research and development from core technology, latest technology (latest technology); O – Open, VHT determines the spirit of openness internally and externally, willingness to cooperate internationally, transfer technology on the basis of its own ownership; P – People, VHT holds talented engineers, in the team there are more than 30% doctors, masters from abroad, there are leading international experts from the US, Singapore, Taiwan…; C – Challenge, setting high goals and challenging is the guiding principle for development; I – Infrastructure, VHT has the most modern lab system in Vietnam and can be said to be not inferior to any country in Southeast Asia. Research group Invention of radio base station of VHT . Broadband Radio Center Answering the question of why VHT can achieve many high-tech research and development achievements, especially the successful registration of 4 exclusive patents in the US, Mr. Nguyen Cuong Hoang said, the important issue especially their capacity and technology; Internal strength is decisive. All the results have been accumulated over 10 years of VHT. Currently, VHT has world-class products in many fields such as military, information machines, radar equipment, etc., which can completely compete with the world’s leading corporations. “If I can compete in terms of technology, there are certainly a lot of core technologies and algorithms that I can bring to register for intellectual property. Which markets do I target, I will start to register for protection in that market. The first milestone to conquer is the US, if it is already in the US, it will be much simpler in other markets because the US is the most difficult market”, said Mr. Nguyen Cuong Hoang. The VOTO driving simulation cabin system is researched and developed by VHT In the world today, the US is considered one of the countries with the most patents. Patents granted by USPTO will have to go through many of the world’s most rigorous censorship and evaluation processes. Therefore, getting a patent from this agency is an extremely difficult process. Mr. Phan Thanh Hai, Director of the Appraisal Center, Intellectual Property Department (Ministry of Science and Technology) said: In the last 5 years, the number of Viettel’s patent applications has grown continuously. The fact that Viettel has 4 US-patented patents has great significance in affirming the technological capacity and development orientation of Vietnamese enterprises. Nguyen Vu Ha, General Director of VHT affirmed: “The US patent is a recognition of inventions and scientific research, thereby, affirming that Vietnamese people can compete with corporations. major technologies such as Huawei, LG, Nokia… Intellectual property rights are affirming an indispensable role in the process of forming a comprehensive economy and sustainable development. The certificate of intellectual property rights is the evidence to ensure the success of each enterprise entering the world arena. Field image of the invention “Method of detecting water surface targets in the noisy environment, application in the coast guard radar station” of VHT Radar Center 3đ research orientation of high-tech products of VHT: The first is high-tech defense products. The second is products for telecommunications networks (for example, transceivers and core networks of 4G equipment, we are currently making 5G equipment). The third is the product of equipment for people’s daily life in the digital transformation roadmap of Viettel Group such as chip equipment for (5G, IoT, Camera AI), civil equipment for security and safety, health and education. VHT is continuously exploring both civilian and military technologies and will continue to release new technology product lines.

Wireless electricity does not emit radiation. This picture seems impossible at first glance but is being realized gradually through an idea called “wireless electricity”. From the Tesla coil From 2021, Powerco, New Zealand’s second largest electricity distributor, will work with start-up Emrod to bring wireless electrical technology to life. It all stems from the ambitious dream of the Serbian engineer, Nikola Tesla. Back in 1899, in the city of Colorado Srpings, USA, Nikola Tesla created a 50m high coil with a current of 12 million volts, called the “Tesla coil”. The coil has an activation switch. Just flip the switch, a flash will flash from the coil, carrying wireless current to light up 200 nearby bulbs. During the test, no one was injured. This experiment hypothesizes that the Earth can conduct electricity by itself without the need for a transmission device. And the technology of transmitting electricity in the air can be quite safe for humans or other living things. After that, Nikola Tesla continued to experiment with electromagnetic induction, discovered by scientist Michael Faraday from the 1820s. According to this experiment, around the electromagnet has a changing magnetic field, creating an electric current in a wire is nearby. Electric currents in a wire create electrical energy in the air, which can exist as a magnetic field. From his experiments, he modified and perfected the Tesla coil, the first system to wirelessly transmit electricity. The Tesla coil consists of two parts: a primary coil and a secondary coil. Each coil carries its own capacitor. The two coils and capacitors are connected by an ignition slot and can produce a spark. In general, the Tesla coil is two open circuits connected to an ignition slot. It needs a source of high voltage messages, passed through a transformer to produce thousands of volts. First, the primary coil will be connected to a power source. It will absorb electrical charges like a absorbent sponge. The primary coil is usually made of copper, a material that conducts electricity well, as it must be able to withstand very large charges and many electric waves. When the primary coil’s capacitor has accumulated a lot of charge, it will escape and create a magnetic field. Magnetic energy induces an electric current in the secondary coil. The compressed voltage through the air between the two coils creates a spark in the air. When the charged charge in the capacitor of the secondary coil rises, it will escape in the form of an electric arc. When this happens, an energy is enveloped between the two coils. The high frequency voltage can light fluorescent bulbs a few feet away without the need for a transmitter. Wireless power network infrastructure Inspired by Nikola Tesla’s invention, New Zealand-based Greg Kushnir founded the Emrod Energy Company. The company plans to deploy wireless power infrastructure. To do this, Emrod uses a system consisting of a power source, a special antenna capable of converting radio waves into electricity, called “rectenna,” the base stations. The transmitting antenna converts electricity into microwave particles. In the area using wireless electricity, Emrod installs base stations fitted with square pads. The microwave particles transmitted to the receiver will be gathered into a beam, leading to the rectenna in the area. The rectenna’s job is to convert the microwaves back into electricity. The reason that the receiver is square is because it needs a large surface area, which helps to collect all microwaves passing through. “We have developed a long-range wireless transmission technology,” said Greg Kushimir. The technology itself has been around for a while. Our project is a continuation of Tesla’s achievements ”. However, Kushimir commented that Tesla can generate alternating current from the Tesla coil but he cannot control the electric beam at a long distance. In contrast, Emrod can keep the electric beams tightly connected, stable transmission thanks to two technologies. First, it must be mentioned is the technology related to transmission lines. The microwaves passing through the collimator are converted into a parallel beam of light. Next, Emrod used metamaterials designed in microscopic samples, highly efficient in microwave reception. The Rectenna acts like an invisible cable. Their job is to transmit electricity to the people. By eliminating the traditional wiring, Emrod can bring electricity to areas with difficult terrain, difficult to access because the infrastructure here does not support electricity networks. This technology also has a positive impact on the environment as people do not have to depend on generators that run on gasoline or oil. Power generation stations can also be quickly installed after a natural disaster. Thus, bad weather does not affect the wireless power transmission system. However, Kushimir expressed the challenge now is communication and public orientation. Like the advent of 5G, many people may oppose this idea due to concerns about the negative effects of radiation. But Kushimir asserted, the wave beam transmitted in the new technology does not emit radiation harmful to humans.