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Electronics - musician. Schemes, articles, descriptions

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Electronics - musician

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sawdust instead of fuel oil



Section Alternative energy sources. Timber industry waste is a factor in the energy independence of the timber industry regions of Russia. Bioenergy, in particular the production of energy from wood and wood processing waste, is one of the most promising areas for the development of renewable energy sources in Russia. Practically free raw materials, which previously brought one headache, can now become a source of energy independence for the timber industry regions of our country. The abundance, low cost and environmental friendliness of wood raw materials make it economically feasible to use it instead of coal and fuel oil. ... >>

Microcontroller PIC16C84. Short description



Section Microcontrollers. PIC16C84 belongs to the family of CMOS microcontrollers. It differs in that it has an internal 1K x 14 bit EEPROM for programs, 8-bit data and 64 bytes EEPROM of data memory. At the same time, they are characterized by low cost and high performance. Users who are familiar with the PIC16C5X family can see a detailed list of differences between the new and previously produced controllers. All instructions are one word (14 bits wide) and execute in one cycle (400 ns at 10 MHz), except jump instructions, which are executed in two cycles (800 ns). The PIC16C84 has a four-source interrupt and an eight-level hardware stack ... >>

Connection and termination of wires and cables



Electrical section. In order to feel confident and safe in your apartment, you should check whether the cross-section of the wires of the electrical wiring corresponds to the maximum actual load, as well as the current of the protective fuses or the circuit breaker. Most often, contact failure occurs at the junction of the wires. The operability and durability of electrical wiring largely depend on how well the wires are connected to each other and the wires are connected to the contacts of electrical components. Therefore, it is advisable to get acquainted with the methods that ensure a reliable connection before starting work. The main purpose of each connection is a reliable and durable contact in an electrical circuit. When connecting wires, it should be borne in mind that the resistance of the connection should not exceed the resistance of the wire itself, in addition, it is necessary to ensure sufficient mechanical strength in the connections, especially in those parts of the circuit where accidental stretching is not excluded ... >>

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Articles on electronic devices for a musician

Articles on electromusical devices; schemes of electromusical devices; descriptions of electromusical devices: 62 articles

 


 

Latest news of science and technology, new electronics:

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

High Energy Density Capacitor 17.05.2024

Energy plays a key role in many aspects of modern life, and the ever-increasing demand for efficient and fast-charging power sources is driving innovation. Researchers at the McKelvey School of Engineering at Washington University in St. Louis have taken a significant step forward with a high-energy-density capacitor that promises to revolutionize the world of energy. A team of scientists from the McKelvey School of Engineering at Washington University in St. Louis presented the results of their latest research on heterogeneous thin-film structures for capacitors. Researchers, working with ferroelectrics, inadvertently created a capacitor with an amazing energy density that is 19 times higher than that of conventional elements. This breakthrough opens up new prospects for the development of fast-charging batteries, which are so necessary in the modern world. Capacitors play a key role in various devices, providing stable ... >>

Causes of conflicts between brothers and sisters 16.05.2024

Family relationships are often complex and multi-layered, and conflicts between siblings are no exception. Research in this area can help us understand what factors underlie these conflicts and why they occur so frequently. Let's look at some of the findings from psychologists at Arizona State University. American psychologists from Arizona State University conducted a study aimed at identifying the causes of conflicts between brothers and sisters. They found that different forms of violence, whether physical or verbal, did not depend on the gender of the siblings. This means that both girls and boys can exhibit aggressive behavior towards their loved ones. Other studies have shown that conflict between siblings often persists into adulthood, even as contact decreases. This indicates that people often follow established patterns of behavior formed in childhood. It was also found that, despite ... >>

Random news from the Archive

Electricity from sea lettuce 02.01.2022

Researchers at the Technion - the Israel Institute of Technology - have developed a new method to generate electrical current directly from seaweed in an environmentally friendly and efficient way.

The idea, which first occurred to Technion doctoral student Yaniv Schlosberg while swimming on the beach, was brought to fruition by a team of researchers from three Technion faculties that are members of the Technion's Large Energy Program (GTEP), along with a researcher from the Israel Institute of Oceanography and Limnology in Haifa (IOLR). ).

As is known, the combustion of fossil fuels leads to the emission of greenhouse gases and other pollutants that affect climate change, and various forms of environmental pollution occur at all stages of production, transportation, processing and consumption of these fuels. The climate crisis and environmental issues are driving the research and search for alternative, clean and renewable energy sources. One of them is the use of living organisms (eg bacteria) as a current source in microbial fuel cells (MFC) and BPEC biophotovoltaic cells. Some bacteria have the ability to transfer electrons, but they need to be constantly fed, and some of them are pathogenic.

An alternative source of electricity could be photosynthetic bacteria, especially cyanobacteria (also known as blue-green algae). Cyanobacteria themselves get their food from carbon dioxide, water and sunlight, and in most cases they are harmless - some of them, such as "spirulina", are generally considered "superfoods" and are grown in large quantities.

The research teams of professors Noam Adir and Gadi Schuster have already developed methods for using cyanobacteria to generate electricity and hydrogen fuel. However, cyanobacteria also have disadvantages - they produce less current in the dark, when there is no photosynthesis, and the energy received from them is less than from conventional solar cells. Therefore, BPEC technology, although more environmentally friendly, is less commercially attractive.

In their new work, researchers from the Technion and IOLR have tried to solve this problem using a new source of photosynthesis - algae. The study was led by Prof. Noam Adir and doctoral student Yaniv Schlosberg from the Technion Department of Chemistry and GTEP. They collaborated with other Technion researchers: Dr. Tunde Toth (Department of Chemistry), Prof. Gadi Shuster, Dr. David Merii, Nimrod Krupnik and Benjamin Eichenbaum (Department of Biology), Dr. Omer Yehezkeli and Matan Meyrovic (Department of Biotechnology and Food Engineering) and Dr. Alvaro Israel from IOLR in Haifa. Many types of seaweed grow naturally on Israel's Mediterranean coast - especially ulva (also known as sea lettuce), which is grown in large quantities at IOLR for research purposes.

By developing new ways to connect algae and BPEC, the researchers have obtained a current that is 1000 times stronger than that from cyanobacteria, and is at the level of standard solar cells. Professor Adir notes that this current strength is due to the high rate of photosynthesis of algae and the ability to use algae in their natural seawater as an electrolyte in BPEC. In addition, seaweed creates current in the dark, generating about 50% of the current in the light - in the dark, the energy source is algae respiration, in which the sugars obtained during photosynthesis are used for nutrition. As with cyanobacteria, no additional chemicals are required to produce the current. "Sea lettuce" releases intermediary molecules to carry electrons to the BPEC electrode, thus creating an electrical current.

Energy production technologies based on fossil fuels are known as "carbon positive". This means that when fuel is burned, carbon is released into the atmosphere. Solar cell technologies are known as "carbon neutral" and when they extract energy from the sun, no new carbon is really released into the atmosphere. However, the production of solar cells and their transportation to the place of use is many times more carbon-positive. The new bioelectricity technology developed at the Technion is truly "carbon negative" - ​​seaweed grows by absorbing atmospheric carbon during the day and releasing oxygen, and only at night they release carbon when they breathe. At the same time, seaweeds are already being cultivated on a mass scale for the food, cosmetic and pharmaceutical industries.

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