Infrastructure sectors such as energy, gas or water supply, waste water treatment or telecommunication provide us with services that are essential for modern life and for industrialized societies. In order to better understand the opportunities and limits of transformation processes in infrastructures, we will explore the particularities of these sectors. We introduce and discuss five dimension...

corrosion of steel reinforcement is one of the most prevalent causes of reinforced concrete (rc) structures deterioration in chloride-contaminated environments. as a result, evaluating the impact of any possible corrosion-induced damages to reinforced concrete bridges strongly affects management decisions: such as inspection, maintenance and repair actions. the corrosion propagation phase is a ...

Using a library information system in an engineering research environment, this paper investigates the service quality perceptions of professional information system users. This paper also examines the relationship between the relative importance allocated by the system’s users to each of the five SERVPERF dimensions (dimensions that are shared with the SERVQUAL instrument) as measured by the p...

Introduction: The purpose of the present study was to examine the validity and reliability of the Health Related Quality of Life Questionnaire (KIDSCREEN-52) in a sample of Iranian students. Materials and Method: Using Multistage Sampling, 551 students from middle and high school, studying in Yazd city were selected as a sample. In this study” KIDSCREEN-52 HRQOL questionnaire”, and some other ...

introduction: intellectual capitals in an organization are assets that their value is increased over time and with sharing with others. since hospitals are dominant in providing medical services, management of intangible assets could be very important for them. to avoid the waste of costs and efforts, it is necessary to identify the priority and importance of each dimension of intellectual capi...

Evaluation of the building element technical state relies on verification calculations using estimated construction material properties. Physical and mechanical properties are predominately by non-destructive test methods. The accuracy these methods is affected level stress-strain structural present defects. variability concrete over time under constant loads a determining factor for durability...

We have developed a new CO2 heat pump water heater compressor with a single rotary mechanism in practical use for the first time in the world. CO2 refrigerant doesn't destroy the ozone layer, and the global warming potential (GWP) is less than 1/1000 in comparison to hydro-fluorocarbon refrigerants. However the operating pressure of CO2 refrigerant is approximately three times as high as that o...