Antenna with active power supply (14, 21, 28 MHz). Encyclopedia of radio electronics and electrical engineering
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Latest news of science and technology, new electronics:
Machine for thinning flowers in gardens
02.05.2024
In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers.
... >>
Advanced Infrared Microscope
02.05.2024
Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>
Air trap for insects
01.05.2024
Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>
| Random news from the Archive Soft power
03.06.2016
The concept of "soft power" as the ability to achieve the desired results on the basis of voluntary participation, sympathy and attractiveness was very popular until quite recently. For various reasons, it has receded into the background, but only in international politics. In the matter of helping the disabled, thanks to the efforts of scientists at Harvard University, "soft power" continues its victorious march - in the literal and figurative sense.
The Israeli company ReWalk Robotics is the world's largest manufacturer of medical exoskeletons. There are currently two products in the company's portfolio. ReWalk Personal, the world's first FDA-certified exoskeleton, is for personal use at home, and ReWalk Rehabilitation is for clinical use in patient rehabilitation and to assess the potential for future use of the ReWalk Personal.
Last year, the company launched its sixth version of the ReWalk Personal, which is custom-made, worn over clothing and fitted with leg braces and torso straps. The sensors installed in the device notice slight shifts in the user's center of gravity and convert them into movements of the motorized leg joints. However, crutches are required to maintain balance.
Now, as a result of the joint development of researchers from the Wyss Institute at Harvard University and engineers of the company, a product more flexible in all respects has appeared, designed for patients with reduced lower limb mobility resulting from a stroke or multiple sclerosis.
The "soft power" of the exoskeleton lies in the use of fabric that repeats the shape of the body and limbs. Unlike more serious predecessors, such an exoskeleton weighs much less and does not restrict freedom of movement. Powerful actuators are hidden inside the belt. The exoskeleton is designed to help the user make natural movements, maintain balance and reduce fatigue.
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