The aim of this research is to determine the most important and main factors that lead to breast cancer. It is also about finding suitable solutions to eradicate these factors and avoiding them in order to prevent getting breast cancer.In order to achieve the aim of this research, a sample of (40) patients from Medical City - Oncology Teaching Hospital where a questionnaire was used to collect data. It contained (17) reasons. The statistical programmed (SPSS) was used to compare the results of the data analysis using two methods (Radial Bases Function Network) and (Factorial Analysis). The research came up with important results; the two methods determined the same factors that could be a direct reason to breast cancer, but the first method of analysis was more precise and accurate in identifying these factors. Concerning both methods the focus was on the factors of: breast self examination, the periodical mammography machine examination early and continuously (periodically), and their life style had a major effect on their susceptibility of the risk of breast cancer.

China has a limited share of water resources per capita and a severe water scarcity. It is one of the world's countries with the most limited water resources per capita. Water resource challenges in China also include a lack of understanding of water conservation and water conservation, as well as major waste, pollution, and over exploitation. In order to solve the problem of inconvenient accurate calculation of pipeline head loss with complex layout, research on computer-aided design (CAD) head loss calculation method based on Plant Design Management System (PDSM) three-dimensional model is proposed. Firstly, the pressure pipe model is taken as the research object, and the straight pipe and pipe components of the calculated pipeline are classified and summarized according to the identification code of the three-dimensional model component library; Secondly, the head loss calculation formula is compiled and the corresponding logic between the calculation formula parameters and the PDSM three-dimensional model is established; Finally, the head loss of the same type of straight pipe and pipe components is calculated respectively. This calculation approach overcomes the drawbacks of the standard penstock head loss calculation method, such as the vast number of calculations required, erroneous calculation outputs, and lack of automation. Compared with the traditional calculation technology, the calculation accuracy is improved by 20%. It can calculate the pipeline head loss and local head loss synchronously, which is more accurate and simpler than the traditional calculation method.

No abstract

In this paper, we study a new subclass of univalent analytic functions with positive coefficients in the unit disk; we obtain main result, distortion theorem and some properties of this subclass.

In this paper , we study a new class  of p-valent functions with negative coefficient defined by   integral operator in the unit disk . We obtain some results of this class .