نتایج جستجو برای: reliability and durability dimensions

تعداد نتایج: 16857663  

جلیلیان, حامد, حسن زاده رنگی, نرمین, خسروی, یحیی, عابدینلو, رضوان, فرشاد, علی اصغر,

Introduction: In recent years, a growing attention has been paid to assess the physical characteristics of rich and poor urban districts to understand social health differences. Urban districts environment play a major role in health of the residents. Previous few studies have considered some aspects of limited neighborhood environment. The current study was designed to investigate the reliabil...

2009
Jochen MARKARD

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...

Journal: :civil engineering infrastructures journal 0
amir tarighat assistant professor, department of civil engineering, shahid rajaee teacher training university, tehran, iran. fahimeh jalalifar m.sc., department of civil engineering, shahid rajaee teacher training university, tehran, iran.

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 ...

Journal: :InformingSciJ 2009
Hollis T. Landrum Victor R. Prybutok Xiaoni Zhang Daniel A. Peak

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...

Abstract Background and purpose: The deep cervical flexor muscles have a major role in neck stabilization and evidence suggests that these muscles especially longus colli muscle (LCM) becomes dysfunctional in panitents suffering from cervicogenic headache. Therefore, measurement of these muscles in healthy subjects and patients may be of great value to understand the stabilization function o...

Amir Nik-Azin, Mohammad Reza Naenian, Mohammad Reza Shairi,

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 ...

Journal: :مدیریت اطلاعات سلامت 0
سمیرا یادگاری کارشناس ارشد، مهندسی کامپیوتر، دانشگاه آزاد اسلامی واحد هرند، اصفهان، ایران طاهره یعقوبی استادیار، مهندسی کامپیوتر، دانشکده ی فنی مهندسی، دانشگاه پیام نور اصفهان، اصفهان، ایران سید سعید آیت استادیار، مهندسی کامپیوتر، دانشکده ی فنی مهندسی، دانشگاه پیام نور نجف آباد، اصفهان، ایران

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...

Journal: :Journal of Engineering Science 2021

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...

2014
Naotaka Hattori Hideto Nakao Tomoo Takayama

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...

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