نتایج جستجو برای: digital

تعداد نتایج: 307822  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1391

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...

Journal: :international journal of information science and management 0
s. rezaei sharifabadi ph.d., alzahra university, tehran

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...

Journal: :تحقیقات کتابداری و اطلاع رسانی دانشگاهی 0
المیرا جنوی دکتری علم اطلاعات و دانش شناسی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران فهیمه باب الحوائجی دانشیار گروه علم اطلاعات و دانش شناسی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران

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...

Journal: :مدیریت دولتی 0
المیرا جنوی دکتری علوم کتابداری و اطلاع رسانی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران فهیمه باب الحوائجی دانشیار گروه علوم کتابداری و اطلاع رسانی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران

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...

ژورنال: دانشور پزشکی 2018
خسروآبادی, رضا, صادقی, سعید, فتح آبادی, جلیل, نیکبخت, صدیقه, پوراعتماد, حمیدرضا,

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...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
sanam mirbeigi department of oral and maxillofacial radiology, faculty of dentistry shahid sadouqi university of medical science, yazd, iran leila khojastepour department of oral and maxillofacial radiology, faculty of dentistry, shiraz university of medial science, shiraz, iran fatameh ezoddini faulty of dentistry, shahid sadouqi university of medical science, yazd, iran

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 ...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
s. nikneshan dept. of oral & maxillofacial radiology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. b. moghaddamzade

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...

ژورنال: :توانبخشی 0
فاطمه سنگتراش fatemeh sangtarash sbmuشعبه بین الملل دانشگاه علوم پزشکی شهید فریده دهقان منشادی farideh dehghan-manshadi sbmuمیدان امام حسین-ابتدای خیابان دماوند-دانشکده علوم توانبخشی شهید بهشتی-گروه فیزیوتراپی علی رضا صادقی ali reza sadeghi zanjan medical universityدانشگاه علوم پزشکی زنجان سیدمهدی طباطبایی seyyed mehdi tabatabaei sbmuمیدان امام حسین-ابتدای خیابان دماوند-دانشکده علوم توانبخشی شهید بهشتی-

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...

Journal: :world journal of plastic surgery 0
muhammad ahmad department of aesthetic plastic surgery, islamabad private hospital, islamabad, pakistan

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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