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Solar oil from greenery

28.09.2005

Someday the source of diesel fuel will not be oil wells, but plants, an American scientist believes.

James Damsik and his colleagues from the University of Wisconsin-Madison propose to rely on carbohydrates, which make up 75% of the dry weight of plants, for the manufacture of biofuels, but not to turn them into ethanol, but to go the other way: directly convert vegetable carbohydrates into long hydrocarbon chains - they are and are diesel fuel.

Because oil and water are immiscible, these hydrocarbons will float on the surface of the reactor where they can be easily scooped out. In order to turn the short and sometimes closed carbon skeletons of plant carbohydrates into long molecules of diesel fuel, scientists conducted several reactions involving catalysts and hydrogen, and H2 is supposed to be extracted again from plants.

The experiment has so far been delivered in its pure form - chemists used carbohydrates themselves. Plants, apparently, will have to be pre-treated.

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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 ... >>

The threat of space debris to the Earth's magnetic field 01.05.2024

More and more often we hear about an increase in the amount of space debris surrounding our planet. However, it is not only active satellites and spacecraft that contribute to this problem, but also debris from old missions. The growing number of satellites launched by companies like SpaceX creates not only opportunities for the development of the Internet, but also serious threats to space security. Experts are now turning their attention to the potential implications for the Earth's magnetic field. Dr. Jonathan McDowell of the Harvard-Smithsonian Center for Astrophysics emphasizes that companies are rapidly deploying satellite constellations, and the number of satellites could grow to 100 in the next decade. The rapid development of these cosmic armadas of satellites can lead to contamination of the Earth's plasma environment with dangerous debris and a threat to the stability of the magnetosphere. Metal debris from used rockets can disrupt the ionosphere and magnetosphere. Both of these systems play a key role in protecting the atmosphere and maintaining ... >>

Solidification of bulk substances 30.04.2024

There are quite a few mysteries in the world of science, and one of them is the strange behavior of bulk materials. They may behave like a solid but suddenly turn into a flowing liquid. This phenomenon has attracted the attention of many researchers, and we may finally be getting closer to solving this mystery. Imagine sand in an hourglass. It usually flows freely, but in some cases its particles begin to get stuck, turning from a liquid to a solid. This transition has important implications for many areas, from drug production to construction. Researchers from the USA have attempted to describe this phenomenon and come closer to understanding it. In the study, the scientists conducted simulations in the laboratory using data from bags of polystyrene beads. They found that the vibrations within these sets had specific frequencies, meaning that only certain types of vibrations could travel through the material. Received ... >>

Random news from the Archive

Smart TV boom expected 26.10.2012

In 2011, "smart" TVs were 6,6 times ahead of regular TVs in terms of sales growth in Russia. By the end of 2014, J'son & Partners Consulting predicts an increase in their sales by 300% to 2 million units. According to estimates by J'son & Partners Consulting, in 2011 about 0,5 million TVs with Smart TV functions were sold in Russia in the amount of about 21 billion rubles. The growth rate of their sales in monetary terms was 6,6 times higher than that of the traditional TV market. By the end of 2014, analysts predict sales growth of these devices in Russia to 2 million units.

According to J'son & Partners Consulting, Smart TV accounted for about 10% of all TV sales over the specified period. Analysts note that this almost corresponds to a similar global market structure: according to estimates from the Taiwan Research Institute, global shipments of TVs in 2011 amounted to about 250 million units, and Smart TV - 25 million units.

The leader of the Russian Smart TV market, according to J'son & Partners Consulting, is Samsung - about 40% in terms of revenue. In addition to it, the top three also includes Panasonic and LG. The Russian representative office of Samsung told CNews that in 2011 the share of Smart TV in the total sales structure of the company's TV sets in Russia exceeded 25% and further growth of this market is expected. According to analysts, according to the results of the first half of 2012, prices for Smart TV became equal between different manufacturers and ranged from 30 to 38 thousand rubles.

According to a survey of Smart TV users conducted by J'son & Partners Consulting among residents of Moscow and the Moscow Region, video applications are the most popular feature in such devices: 74% of respondents use them regularly. Of the video hosting sites, the most popular application is YouTube, among Internet cinemas - ivi.ru, and among TV channel applications - NTV-Plus.

Smart TV users are least interested in various thematic applications: they are regularly used by only about 21% of Smart TV owners. Most of these applications are optional and are installed on the TV from the application store. Approximately 10% of users do not use Smart TV functions at all, J'son & Partners Consulting notes. As the same survey showed, the majority of Smart TV owners bought their device in 2012 - 58%. Last year, Smart TV was purchased by only 20% of respondents. Only 5% of respondents have two-year-old television sets.

As a reason for buying Smart TV, the majority of respondents - 44% - name the superiority in functionality over conventional TVs. Also a popular answer is the desire to try the Internet access function. About 85% of respondents who want to buy a TV in the next year plan to buy Smart TV, J'son & Partners Consulting says.

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