نتایج جستجو برای: digital
تعداد نتایج: 307822 فیلتر نتایج به سال:
ین پایان نامه با هدف سنتز و شناسایی چهار نوع از نانو ذرات آغاز می شود. نانو ذرات آلوم اکسان از واکنش بوهمیت و کربوکسیلیک اسید مربوطه حاصل شدند. هدف از سنتز این نوع نانو ذرات ساخت غشاهای عامل دار شده با خاصیت آب دوستی و انتخاب پذیری جهت جداسازی روغن از مخلوط های آب و روغن، می باشد. tg-dta، ftir، sem، tem، uv/vis spectrophotometer، digital camera،contact angle measurement goniometer، ultrasonic b...
Purpose: This paper tries to qualitatively present the issues related to axes of development in digital libraries, including human force, content, services, and technology, and provide a clear viewpoint in this regard by considering all existing aspects. Methodology: In this paper, all existing resources were used. Through citation (library) method, the related literature was studied and, besi...
digital libraries offer opportunities for e-learning that are not possible in their physical counterparts. digital libraries complement other learning environments, such as those provided in distance education and courses offered online. like e-learning environments, they provide flexibility of time and place. digital libraries have the potential to offer unprecedented resources to support e-le...
objective: the main purpose of present research was to identify strategic factors influencing to the development of digital libraries in iran.method: research method of this study is grounded theory, which we use systematic method. the study sample consisted of professionals and experts in the field of digital library, and semi-structured interviews used to collect data to achieve theoretical s...
designing a management model for developing digital libraries in iran (recourse-based view approach)
after passing more than one decade of appearance of digital libraries in iran, they couldn’t meet their real mission, which is responding to audience needs. surely, this problem is affected by potentially and real factors. so this research wants to recognize resistant factors and driving factors by recourse oriented approach, and then to fit them in integrated model.research method which we app...
Background and Objective: In recent years, excessive use of digital devices had dramatically increased in young people and this extreme exposure has inappropriate physical, cognitive, emotional, social and psychological consequences, such as the disruption in the parent-child interaction. The aim of this study was to investigate the effectiveness of emotional diet intervention on enriching pare...
introdouction: the purpose of the present study was to determine the possible relationship between gonial angle size and three mandibular morphometric parameters, namely, panoramic mandibular index (pmi), mandibular cortical width (mcw), and antegonial notch depth (ad), in digital panoramic radiographs. materials and methods: pmi, mcw, and ad were calculated in digital panoramic radiographs of ...
objective: after introduction of digital radiography into dentistry several methods of image acquisition were accessible in the field of dentistry. in many instances it is necessary to digitize analog images. there is no overall acceptable method for image digitization so all different types of images can be comparable. the objective of this study was to compare the diagnostic accuracy of diffe...
هدف: اندازه گیری دقیق کایفوز پشتی ستون فقرات هم در روند ارزیابی بیماران و هم در سنجش اثر درمانهای مختلف از ارزش بالایی برخوردار است.dual digital inclinometer(ddi) به عنوان ابزاری که می تواند به صورت غیر تهاجمی مقدار زاویه کایفوز را اندازه گیری کند معرفی شده است. امابنا بر اطلاعات موجود تاکنون تنها یک مطالعه به بررسی اعتبار و تکرارپذیری این ابزار درکشورمان پرداخته است. لذا هدف از این مطالعه بررس...
background digital nerve block is commonly performed by care providers in medical fields. this study compares the blocks in terms of effectiveness of anesthesia and pain. methods patients were divided into two groups. first group underwent digital block whereas 2nd group had transmetacarpal digital block. the subcutaneous ring block was performed by two injections of 3 ml of 2% lignocaine in a ...
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