نتایج جستجو برای: pipeline changeover

تعداد نتایج: 30209  

When a natural gas pipeline ruptures, the adjacent automatic line control valves (ALCVs) should close quickly to prevent leakage or explosion. The differential pressure set point (DPS) at each valve location is the main criteria for value setting in ALCV action. If the DPS is not properly adjusted, the ALCV may mistakenly close or it may not take any action at proper time. This study focused on...

2013
John D Blakey Andrew Fearn Dominick E Shaw

OBJECTIVE To investigate whether measurements of junior doctor on-call workload and performance can clarify the mechanisms underlying the increase in morbidity and mortality seen after junior doctor changeover: the 'August effect'. DESIGN Quantitative retrospective observational study of routinely collected data on junior doctor workload. SETTING Two large teaching hospitals in England. P...

Journal: :Journal of animal science 2004
D Weiss S Helmreich E Möstl A Dzidic R M Bruckmaier

In conventional milking systems, dairy cows are driven to the milking stall twice or thrice daily, whereas in automatic milking systems (AMS), the cows enter the milking stall voluntarily. In this study, noninvasive methods were used to analyze the physiological reaction of 17 cows toward the changeover from conventional to automatic milking. Milk yield and composition were analyzed. Heart rate...

Journal: :مهندسی عمران فردوسی 0
علیرضا صادقیان بابک امیدوار

in this research an algorithm based on monte carlo simulation is introduced to assess the risk of fire following earthquake in residential, industrial, educational, and governmental land-uses in district no. 20 of tehran. the proposed algorithm consist of different modules including hazard analysis, vulnerability assessment, leak and break analysis of damaged pipeline, ignition probability anal...

Journal: :Japanese Journal of Cardiovascular Surgery 2003

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