نتایج جستجو برای: start time dependent
تعداد نتایج: 2501752 فیلتر نتایج به سال:
We present a novel dynamic recommendation model that focuses on users who have interactions in the past but turn relatively inactive recently. Making effective recommendations to these time-sensitive cold-start is critical maintain user base of recommender system. Due sparse recent interactions, it challenging capture users' current preferences precisely. Solely relying their historical may als...
Background and Aim: Cardio-Pulmonary Resuscitation (CPR) has been used by medical professionals to save the life of dying patients. To achieve more success rates in CPR, the timing factor is of great importance as any delay in starting CPR will reduce the success rate. The aim of this study was to examine the impact of the time elapsed between CPR code announcement and start of resuscitation ...
periodontal ligament is a thin layer of soft tissue that connects root of a tooth to the surrounding alveolar bone. these ligaments play an important role in initiating tooth movement when loads are applied to teeth with orthodontic appliances. the majority of such soft tissues exhibit as viscoelastic bodies or have a time-dependent behavior. due to the viscoelastic behavior of the periodontal ...
In low ambient temperatures the engine will have poor output torque and power generation at the first cycles of its performance, long start time and huge noxious emissions because of insufficient temperature and quality of air-fuel mixture and failure of flame to burn the charge. It is noted that any attempt to increase the charge temperature leads to better combustion conditions. By applying t...
This work contributes to the development of ontology-based user models, devised as overlays over conceptual hierarchies derived from domain ontologies. We tackle the problem of propagation of user interests in such a conceptual hierarchy. In addition to accounting for the hierarchical structure of the domain and the type and amount of feedback provided by the user, the principal contributions i...
در سال های اخیر ثابت شده است که طلا در بین فلزات از لحاظ کاتالیستی فعال می باشد . بنابراین تحقیقات مختلفی توسط محققین صورت گرفته است. اندازه نانو ذرات طلا و پراکندگی بالای آن باعث می شود که تعداد زیادی از واکنش ها مانند اکسایش co در دمای پایین انجام گیرد.دراین تحقیق شرایط cold start برای اکسایش گازهای خروجی اگزوزدرنظر گرفته شد. مخلوط گازی شامل 3درصد مونوکسیدکربن و1/0 درصد پروپان موازنه شده با آ...
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