نتایج جستجو برای: and infrastructure
تعداد نتایج: 16834735 فیلتر نتایج به سال:
This paper explains the evolution of the concept of delegation since its first references in the context of distributed authorization to the actual use as a fundamental part of a privilege management architecture. The work reviews some of the earliest contributions that pointed out the relevance of delegation when dealing with distributed authorization, in particular we comment on PolicyMaker a...
Climate change, congestion, safety, energy consumption and pollution are among the major issues that the European :::union::: and the wider world are facing nowadays. The European Commission is working towards the creation of a Single European Railway Area, encouraging a modal shift towards rail (mainly from road) in order to achieve a more competitive and sustainable European transport syst...
Background: Studying and evolution of medical sciences is so important to draw up the future path with a view to per capita of science production. The purpose of this study was to clarify the status and position of Iran in science production and compare it with four competitor countries of the region for 2025. Methods: This research is conducted using the scientometric method our ranked citati...
one of the main features of high throughput computing systems is the availability of high power processing resources. cloud computing systems can offer these features through concepts like pay-per-use and quality of service (qos) over the internet. many applications in cloud computing are represented by workflows. quality of service is one of the most important challenges in the context of sche...
Public infrastructure in Third World cities is generally in a fairly poor condition. The quality of infrastructure services is further eroded by the rapid population growth in most of these cities. Poor infrastructure reduces the profitability of modern sector manufacturing and may therefore inhibit industrialization. The present analysis demonstrates that there may arise situations with stable...
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