Often fatigue tests of materials are performed with constant amplitude loads. When dealing with variable amplitude loads, like random loads, one forms equivalent load cycles. The now commonly used cycle counting method is rainflow counting which was introduced by Endo in 1968. The equivalent definition of rainflow cycles as illustrated in Figure 1 is due to Rychlik [5]. The fatigue life of a co...

Online and blended learning modalities have made education accessible to those whose lifestyle, work obligations or geographical location would otherwise deny them such opportunities. The enthusiasm with which such approaches to learning have been embraced has often overlooked those factors within physical and virtual learning spaces that impact on the educational experience. This paper reports...

We present the quasinormal frequencies of the massive scalar field in the background of a Schwarzchild black hole surrounded by quintessence with the third-order WKB method. The mass of the scalar field u plays an important role in studying the quasinormal frequencies, the real part of the frequencies increases linearly as mass u increases, while the imaginary part in absolute value decreases l...

Heated tobacco products release nicotine without burning with an electronically controlled heating system. 56-year-old male patient admitted sudden onset of chest pain and shortness breath. He had been using a heated product (I quit ordinary smoking, IQOS) for 2.5 years. Thoracic computed tomography scan revealed pleural-based atelectasis fibroatelectatic changes in the lower lobe right lung, p...

The aim of this study was to evaluate the health situation chukar partridges through several diagnostic methods. We investigated a total 224 birds in eighteen populations throughout Turkey, fourteen wild and four captive. molecular sexing method used for gender identification. Clinically, traumatic lesions inflammatory reactions were most commonly observed eyes extremities Chukar Partridges bre...

Due to the improvement of production technology and the adjustment of energy structure, as well as the town-ownership and private-ownership coal mines (TPCM) were closed or merged by national policy, the number of underground miner has changed comparing with 2004 in China, so collective dose and normalization collective dose in different type of coal mine should be changed at the same time. In ...

The external application of tar to a number of separated areas on the surface of mice, in such fashion that no single area is irritated sufficiently long to cause lesions of the skin, has resulted in a very high incidence of lung tumors. This incidence ranged from 60.0 per cent in one experiment to 78.3 per cent in another. Control mice from the same stock but from 3 to 6 months older, and for ...