PurposeTo determine the effects of intra-abdominal surgery on intensities 5 radiation-induced intestinal syndromes in survivors pelvic cancer.Methods and MaterialsThe analysis included 623 women born 1927 or later who had survived cancer. They all received external radiation therapy toward area to treat gynecologic cancers. Information from 344 did not undergo irradiation, matched for age resid...

Metal oxide surge arresters (MOSAs) are a popular solution for dealing with overvoltages due to lightning and switching in power distribution networks. As result, MOSA’s performance longevity have significant impact on the quality of energy frequency outages. A MOSA is determined by several elements such as leakage current, partial discharge, thermal image measured various ways. In this study, ...

the design and application of a fuzzy logic based controller to a leakage current relay waspresented in this paper. a novel approach based on fuzzy logic to form the tripping action of leakagecurrent relay was investigated. in addition to the theoretical aspect of fuzzy logic, detection of a leakagecurrent, measurement of the leakage current, determination of its duration, trip opening of fault...

From the perspective of environmental risks, groundwater pollution, surface water and fire explosion scenarios were simulated predicted with analytical method in an equipment manufacturing industrial park Shenyang. The results showed that: after accident, maximum migration distance COD pollution factor leakage next ten years could reach 1500m, its peak concentration was 786.35mg/L; WSCLC wastew...

Abstract The state-of-the-art sealing systems in aircraft engines are labyrinth seals to regulate mass flow between rotating components. To prevent structural damage of vital parts during a rubbing process, abradable liner configurations with hollow body structures applied on the stator. Compared smooth stator surfaces, these increase cross-sectional area gap and, thus, lead higher leakage. aim...

To reduce gas leakage, shape optimization of a straight labyrinth seal was carried out. The six design parameters included clearance, fin width, height, pitch, backward, and forward expansion angle. CFD (Computational Fluid Dynamics) model solved to generate the training testing samples for surrogate model, which established by least square support vector machine. A kind chaotic algorithm used ...