نتایج جستجو برای: technical foundations of information systems
تعداد نتایج: 21326316 فیلتر نتایج به سال:
Cooperative Information Systems (CIS) is a research area that has emerged from the synthesis of databases and artificial intelligence. It can succinctly be defined as the study of multiagent systems and organizational and database abstractions geared toward the large, open, heterogeneous information environments of today. This short paper describes how CIS architectures have evolved a set of co...
This paper aims to extend understanding of the nature of information systems and technology (IS/IT) artifacts and the manner in which information systems design theories address the mutable nature of these artifacts. The term ‘semizoa’ is introduced to refer to IS/IT artifacts as mutable systems that exhibit some of the characteristics of living creatures and that are only in part designable. I...
A key component of research within information systems is the use of valid instruments to measure numerous aspects of technology, organizations, and people. Validated instruments exist for many different variables and more are available all the time. Knowledge of a particular domain is an integral part of working competently, effectively, and successfully within that domain (N.M. Degele, World ...
چکیده به منظور بررسی اثر تنوع گیاهی و نوع منبع تغذیه ای بر تنوع و تراکم علفهای هرز و حشرات، کارایی مصرف نهاده ها ( نور، آب، عناصر غذایی) و عملکرد و خصوصیات کیفی چند گونه زراعی، آزمایشی به صورت کرتهای خردشده بر پایه طرح بلوکهای کامل تصادفی با سه تکرار در دو سال زراعی 1385-1384 و 1386-1385 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به اجرا درآمد. تیمارهای مورد بررسی دو منبع کود دامی و...
The content of the audit and vulnerability testing information telecommunication system (ITS) any enterprise is considered. Based on results security audit, overall company's ITS assessed. It proposed to assess IT using penetration in following areas: from outside inside infrastructure, social engineering personnel for resistance DDoS attacks; assessment mobile application, web resource wireles...
assigning premium to the insurance contract in iran mostly has based on some old rules have been authorized by government, in such a situation predicting premium by analyzing database and it’s characteristics will be definitely such a big mistake. therefore the most beneficial information one can gathered from these data is the amount of loss happens during one contract to predicting insurance ...
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...
the study aims to achieve research and testing of hypotheses survey techniques and questionnaires to collect information used. 61 questions in the questionnaire included 15 questions and 46 open questions according to research in the study population, girls and their mothers as the value of different children investment should be. mothers according to the research community benefits from havi...
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