Free books, magazines, collections published in 2002

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Content of books and magazines / Year 2002

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100-watt transistor UMZCH on field-effect transistors with a common source

100-watt VHF power amplifier with overload protection

100-watt UMZCH and acoustic system for electric guitars

PL10 504-watt push-pull triode pentode amplifier

10-watt UMZCH with separated OOS for AC and DC

12-/14-bit telecom ADCs

Rick Spencer's 12-watt UMZCH for beginner tube audiophiles

Sony ICF-SW12 11-band radio receiver

16 programs on Horizon TV - 54TC418D

16-bit MSP430F microcontrollers

18-bit stereo DAC with built-in voice codec

200 amp ultra fast ultra soft recovery diode modules for high frequency welding and battery chargers

200-watt transistor UMZCH with original circuitry for a number of cascades

24 hour timer

256 commands - by 3USCT remote control system

2 Gigabit Fiber Channel Enhanced Transceivers

300W subwoofer amplifier

32-bit microcontrollers from Infineon

Analog Devices 32-bit signal processors

3-channel MIN/MAX thermometer with calendar

4-channel antenna switch

50 years of high-frequency transport in Kyiv

5-channel UMZCH for Home theater on lamps

5th international specialized exhibition Automation-2002 (Minsk)

6S17K-V in the input stage of a single-cycle UMZCH

70th anniversary of Karel Georgievich Fekhtel

75 years ago (about the II All-Union test of operators of individual LRS and SWLs in 1927)

7-band antenna for field or other non-stationary conditions

8051 - compatible microcontrollers and development tools from CYGNAL INTEGRATED PRODUCTS

8-bit microcontrollers С868

8-bit microcontrollers of the NITRON family

9 commands for controlling automation systems via two wires

$90 Mustek DVD-V520 NTSC/PAL DVD Player

AC/DC, DC/DC converters with low leakage currents

ADN2850 - two-channel digital potentiometer

ANRITSU - Japanese quality of measuring technology

AS-interface in industrial safety systems

Sitter

Balun or not Balun? Balancing device from cable coil

CD-ROM drive in the audio system

CD player Sharp MD-MS701H. Device, troubleshooting by error codes on the display

CEBIT - 2003

CEBIT-2003 as a chance for rapid growth

CFA antenna - return after 100 years

Circlotron on 4х6СЗС

Columna vertebralis - tree of life

DC/DC converters for telecommunication devices

Ruggedized DC/DC Converters

DC/DC Converters: Regular or SMD?

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Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

How is chess played 15.03.2002

German scientists have found that when playing chess, especially when analyzing the situation on the board, experienced masters and ordinary amateurs use different parts of the brain.

20 people were seated at the boards. All of them had ten years of playing experience, but some had the title of master, the rest did not have any sports titles. Computers played against people. During the game, the chess player's brain was scanned every five seconds with a tomograph, which determined the volume of blood flow in different parts of the brain. It is this indicator that indicates the activity of the nervous tissue in this place.

It turned out that the frontal and parietal lobes of the cerebral cortex work in the masters during the game - it is believed that the centers of long-term memory are located there. And for amateurs, it is mainly the central region of the temporal lobes of the brain that is involved, where short-term memory is concentrated.

The conclusion of the researchers: when playing, the master draws on his extensive knowledge, the experience of tens of thousands of games, and the amateur basically has time to react to the opponent's just made move.

News feed of science and technology, new electronics

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