نتایج جستجو برای: شاخص sdi
تعداد نتایج: 76020 فیلتر نتایج به سال:
Stimulant-dependent individuals (SDI) have abnormal brain metabolism and structural changes involving dopaminergic target areas important for the processing of time. These individuals are also more impulsive and impaired in working memory and attention. The current study tested whether SDI show altered temporal processing in relation to impulsivity or impaired prefrontal cortex functioning. We ...
The paper argues that SDI can best be understood in terms of praxis more than as technological artefact. Because of the many different and often conflicting views of reality, interests and other values between the many heterogeneous actors that are involved, SDI development causes inevitably paradoxes and dilemmas. The paper assumes that SDI is context specific but also has the generic properti...
Spatial Data Infrastructure (SDI) is a concept that aids in discovering, sharing, and using geospatial data. Nevertheless, given the breadth of this concept, several ways of developing SDI have emerged. The International Cartographic Association (ICA) has proposed a formal model to describe SDIs irrespective of technologies and implementations by using three of the five viewpoints of the RMODP ...
عمدهترین روش جهت تحلیل خشکسالی هیدرولوژیکی استفاده از شاخص خشکسالی جریان رودخانهای (SDI) میباشد. این شاخص مبتنی بر فرض پیروی سری دادههای حجم جریان رودخانه از توزیع گاما و اصل انتقال هم احتمال میباشد. در این تحقیق، بواسطه کاربرد سری دادههای متوسط آبدهی ماهانه و سالانه 49 ایستگاه هیدرومتری مبنای وزارت نیرو، کارایی 65 توزیع احتمال مورد بررسی قرار گرفت. در هر مورد توابع توزیع احتمالی مختلف بر...
Organisational arrangements have long been recognised as a critical enabler and fundamental component of Spatial Data Infrastructure (SDI). More recently, the term “governance” has become increasingly used to refer to aspects of institutional frameworks that support SDI. However, given the polysemous nature of the term and the evolving nature of approaches to implementing SDI, it not clear exac...
بهمنظور مطالعه اثرات تغییر سامانههای آبیاری قطرهای سطحی به زیرسطحی بر پاسخ گیاهی، یک باغ پسته 10 هکتاری از شهرستان شهریار انتخاب و تیمارهای آبیاری شامل قطرهای سطحی با آب شور (DI)، قطرهای زیر سطحی با آب شور (SDI) و قطرهای سطحی با آب غیرشور...
This paper aims to introduce and discuss six challenges and issues facing the development of SDIs which will be able to meet the sustainable development objectives of society. These issues and challenges include: SDI to facilitate spatially enabled government Role of government, private and academic sectors Development of SDI vision, mission and road map – where are we heading? SDI to facilitat...
People have always played an important role in SDI research. SDI researchers discuss in their papers the role of people explicitly or refer to people implicitly and from different angles. For example, they view people as users of SDI, as evaluators, as learners of SDI, as champions driving development, among others. In this article, we conduct an interpretive analysis of 142 peer-reviewed artic...
This paper presents the Multi-view assessment of SDI status in the Republic of Kosovo performed in 2007 and in 2010. The main objective of this research was to assess the SDI of Kosovo and to define the driving forces needed to support SDI strategy development. The research assesses the status of SDI implementation of Kosovo using SDI readiness Index (Delgado et al., 2005); INSPIRE State of Pla...
به لحاظ اهمیت آب های سطحی و کاربرد آن ها در صنایع مختلف، کشاورزی، مصارف شرب و غیره، نیاز است خشکسالی رودخانه ای و یا هیدرولوژیکی به دقت بررسی گردد. بدین منظور شاخص های مختلفی ارائه گردیده است که در میان آن ها شاخص خشکسالی هیدرولوژیکی sdi، تنها با به کارگیری داده های دبی رودخانه می تواند تخمین خوبی از خشکسالی هیدرولوژیکی را ارائه دهد. در این تحقیق با استفاده از داده های دبی روزانه 18 ایستگاه موج...
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