Numerical methods have gained momentum among specific engineering problems that must be solved in such a manner accuracy and speed are the two most important aspects to consider regarding output. This paper presents fast, semi-analytical method (SAM) original mathematical algorithms determine pressure distribution von Mises stress for spur gears’ meshing teeth. The SAM begins with Hartnett appr...

(In English) The topic of the paper deals with full spectrum evaluation. The full spectrum plays a key role in the processing of complex signals. The real part of this kind of signals is a displacement in the X-direction while the imaginary part is a displacement in the perpendicular direction, as we say in the Y-direction. A good example is a shaft rotating in the journal bearing. The shaft di...

General. The effect of shaft currents passing through an oil film in a bearing is to accelerate polymerization and oxidation and cause thermal decomposition. The oil darkens in colour, sometimes increases in acidity, and generally deposits a chocolate-colour precipitate in the oil system. Arcing will also cause small particles of metal to flake off and contaminate the oil. If a shaft current is...

Crack is a common fault of rotor systems. The research on crack detection methods mainly divided into numerical and experimental studies. In research, the current algorithms based deep learning are mostly applied to bearings gearboxes, there few studies diagnosis. rotors used in an experiment single-span rotors. However, complex structures such as multi-span systems actual industrial field. Thu...

Overall protein integrity is an important hallmark of healthy hair and has a great impact on the cosmetic value of the hair shaft. Hair is comprised of ~80% protein (predominantly αkeratin) and is not regenerative after it exits the scalp. Therefore, protection of the native hair structure on the protein and fiber levels is critical to ensure good cosmetic properties of the hair. Consumer pract...

The long bones are most commonly used for identification of unknown bodies and parts of bodies. Seventy two adult dried humeri (36 right and 36 left) were obtained from the Anatomy Department of University College of Medical College and GTB Hospital. Somatometry was done by means of an osteometric board, a vernier caliper and a tapeline. The maximum height was found to be 306.41± 25.8mm on the ...

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Humeral shaft fractures (HSFs) represent 3% of the fractures of the locomotor apparatus, and the middle third of the shaft is the section most affected. In the majority of cases, it is treated using nonsurgical methods, but surgical indications in HSF cases are increasingly being adopted. The diversity of opinions makes it difficult to reach a consensus regarding the types of osteosynthesis, su...

L. Rudnicka et al. (eds.), Atlas of Trichoscopy, DOI 10.1007/978-1-4471-4486-1_2, © Springer-Verlag London 2012 Most hairs viewed on trichoscopy are normal terminal hairs that are more than 55 m m wide and are uniform in thickness and color [ 1, 2 ] . Hair shaft thickness may be roughly estimated with a handheld dermoscope (thin, normal, thick). Many videodermoscopes include software allowing a...