[Context] Requirements elicitation is an essential activity to ensure that systems provide the necessary functionality users, and they are fit for purpose. In addition traditional ‘reductionist’ techniques, use of observations ethnography-style techniques have been proposed identify requirements. [Research Problem] One frequently heard issue with observational costly use, as developers who woul...

در دهه‌های اخیر چیدمان هندسی و عناصر ریخت‌شناسی شهرها به مثابۀ عوامل مؤثر بر شکل‌گیری شدت بخشیدن پدیدۀ جزیرۀ حرارتی بیش‌ازپیش شناخته پژوهش‌هایی خصوص یافتن تأثیرات شاخص‌های معرف این موضوعات مقیاس‌های فضایی مختلف پدیده انجام شده است، هرچند تأثیر مکانی‌ـ زمانی شاخص‌ها نیز مدلی برای تفسیر طبقه‌بندی آن‌ها تنها سالیان موضوع برخی از مطالعات بوده است. متأسفانه زمینۀ طرح‌شده شهرهای بزرگ مهم کشور کماکان ...

هدف: تطبیق‌پذیری شغلی یک ویژگی مطلوب است و افرادی که انطباق بیشتری با شغل خود دارند، از رضایت داشته، روحیه‌ی مثبتی در کار نشان داده نسبت به سازمان همکاران تعهد بالایی ابراز می­کنند. هدف پژوهش حاضر واکاوی نقش میانجیگری رفتار نوآورانه تطبیق­پذیری رابطۀ بین قابلیت­های زیرساختی عجین شدن عملکرد است.طراحی/ روش‌شناسی/ رویکرد: اﻳﻦ ﭘﮋوﻫﺶ نظر ﻫﺪف ﻛﺎرﺑﺮدی ﻧﻈﺮ جمع‌آوری داده‌ها، ﭘﻴﻤﺎﻳﺸﻲ­- ﺗﻮﺻﻴﻔﻲ اﺳﺖ. جامعۀ ...

Subsea structures are typically supported on mud mat type foundation systems. Traditional approaches for mud mat foundation stability analysis consider calculating the factors of safety using the classical methods given in API RP 2A or the more recent API RP 2GEO. Due to the inherent uncertainties in soil properties and subsea structure forces, conservative factors are generally required, conse...

According to the IEC 61508 functional safety standard, it is required to estimate the achieved safety integrity of the system due to random hardware failures. For a safety function operating in a low demand mode, this measure is the average probability of a dangerous failure on demand (PFDavg). In the present paper, four techniques have been applied to various configurations of a case study: fa...

Abs t r ac t . Showing equivalence of two systems at different levels of abstraction often entails mapping a single step in one system to a sequence of steps in the other, where the relevant state information does not change until the last step. In [BCG 88,dNV 90], bisimulations that take into account such "stuttering" are formulated. These definitions are, however, difficult to use in proofs o...

The fatigue performance of welded joints submarine pipelines is directly related to the safety and economic benefits structures. Considering limitations calculation, anti-fatigue design small-scale test in evaluation analysis pipeline life, this paper demonstrated feasibility, scientificity advancement full-scale technology engineering applications. Consequently, a system its applied for ZY-PFS...

In this study, a novel large-scale barge-type floating offshore wind turbine with an aquaculture cage (LSBT-FOWT-AC) in water depth of 100 m is designed through fully coupled analysis using the SESAM tool to support Technical University Denmark (DTU) 10 MW turbine. The intact stability and natural period motion newly LSBT-FOWT-AC are evaluated based on DNV rules standards. Then, dynamic respons...