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Mobile Phone Books

Mobile Phone Books

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Siemens mobile phones. Khrustalev D.A., 2004.

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The book is devoted to the device and repair of mobile phones Siemens models C25, S25, A35, A40, C35, M35, S35, C45, ME45, S45, SL42, SL45, A50, CL50, C55. For the first time in the domestic literature, the circuitry of mobile phones in general and Siemens phones in particular is described in detail. In addition, it tells about typical malfunctions and how to eliminate them. A large number of high-quality diagrams and illustrations are given. The book is intended for electronic engineers, students of communications universities, service center specialists and trained radio operators.

Link to download the e-book
Siemens mobile phones. Khrustalev D.A., 2004: download from depositfiles.com

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Latest news of science and technology, new electronics:

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

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Random news from the Archive

Dangers of Early Antibiotic Use 08.04.2017

Prescribing antibiotic drugs to children can be an extremely dangerous medical practice. A group of scientists from Belgium, Israel and Canada found that early use of antibiotics can lead to a range of serious consequences.

The use of antibiotics negatively affects the composition of the intestinal microflora, as well as the neurochemical activity of brain regions associated with the activity of the immune system. Also, the use of these drugs reduces social activity and anxiety, but increases aggressiveness.

"The early use of antibiotics deals a complex blow to the intestinal microflora - and this, as you know, is an extremely important biological mechanism for the body that controls the immune system. As a result, it suffers to a particularly pronounced degree also because antibiotics, getting into a fragile organism, affect the brain, in particular, those parts of it that regulate immunity," say the authors of the study, employees of Canada's McMaster University.

Scientists confirm their words with the results of experimental studies carried out on laboratory rodents.

Baby mice were injected with penicillin, and then the effects of its use were recorded. The conclusions obtained as a result are also valid for humans, experts say.

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