Based on the historical fault data of pantograph of CRH380BL EMUs, the fault distribution law of four main fault parts was studied by using the method of reliability data analysis, and then the reliability level of pantograph system was evaluated.ADD and air supply pipe, air supply pipe line, 10-X01 relay and pantograph airbag were seal cookie cutt
Thalassemia is a disease with many challenging aspects.It is caused by a variety of grace in la cactus jeans interesting molecular mechanisms, has a complicated pathophysiology, constitutes a multifaceted medical problem with pain and misery for the patients and unhappiness for their families, creates several diagnostic and therapeutic questions fo
In the early termination of public-private partnership (PPP) projects, compensation is considered a core issue that greatly affects the interests of the government and the private sector.To address the early termination that is frequently caused by government default or voluntary buyback, this paper proposes an ex-ante compensation mechanism using
In the process of model modification of large and complex structures, substructure synthesis method and modal reduction method have been widely used, but there are still some difficulties in precision control and engineering application in the process of model updating.In order to better study the dynamic response of the vibration substructure, the
Biodegradable poly(ester amide)s (PEAs) were synthesized from lactic acid and 11-aminoundecanoic acid via melt polycondensation.Molecular weights, chemical structures and thermal properties of the poly(ester amide)s were characterized in terms of gel permeation chromatography (GPC), Fourier transform infrared spectroscopy (FTIR), osborne hog feeder