مرور Journal of Algorithms and Computation بر اساس تاریخ انتشار
در حال نمایش موارد 1 - 20 از 344
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تاثیر عدم قطعیت در برآورد پتانسیل خطر لرزه ای منطقه
(University of Tehran, 2007-03-01)In this paper the effects of uncertainties in the estimation of seismic hazard parameters is considered. These uncertainties are the result of the intricacy of the matter, restriction in identifying the interfering factors ...
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پیش بینی تقاضای کوتاه مدت آب شهر تهران با استفاده از شبکه های عصبی مصنوعی
(University of Tehran, 2007-03-01)Short-term water demand modeling plays a key role in urban water resources planning and management. The importance of demand prediction is even greater in countries like Iran with frequent periods of drought. Short-term ...
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بهینهسازی توپولوژی سازههای صفحهای به کمک روش SIMP و حذف مناطق شطرنجی
(University of Tehran, 2007-03-01)The SIMP approach is one of the most frequently used methods for topology optimization of structures. In this method, the relative density is expressed as a function of coordinates and varies from 0 to 1 within the design ...
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روش بردارهای ریتز نوین برای تحلیل دینامیکی سازهها در حوزة فرکانس
(University of Tehran, 2007-03-01)Ritz method is one of the techniques for reduction of the degrees of freedom. Efficiency of Ritz method depends on used vectors. The Ritz method uses load depended vectors in spite of modal method and for this reason it ...
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بررسی رفتار لرزهای اتصال خمشی پیچی با صفحه انتهایی بلند
(University of Tehran, 2007-03-01)Today connections are playing an important role in the steel frames subjected to lateral seismic loading. The steel extended end-plate moment connection can play an important role in the steel frame when subjected to seismic ...
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تعیین ضریب انتقال حرارت جابجایی اجباری سیال غیر نیوتنی در مخازن همزده با همزن توربینی زاویهدار
(University of Tehran, 2007-07-01)
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ررسی وتعیین پارامترهای موثر در استخراج کاتیونهای Mn2+ و Cu2+ از بستر جامد توسط سیال فوق بحرانی
(University of Tehran, 2007-07-01)Feasibility of using Cyanex 301, as the auxiliary agent, for supercritical extraction of Cupper and Manganese cations from solid matrix was studied statistically. The amount of extraction is influenced by several parameters, ...
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بهینه سازی روش شستشوی غشاهای لبنی
(University of Tehran, 2007-07-01)The Tagouchi method was used for providing the instruction of ultra-filter dairy membrane cleaning. The goal function with using of four undimentionalized parameter, i.e., water and milk serum flux, percent of protein and ...
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بررسی تصفیه پذیری هوای آلوده صنعتی به تریاتیلآمین
(University of Tehran, 2007-07-01)Performance of a pilot Biofiltration system in removing of Triethylamine (TEA) vapor from air stream was evaluated in this study. Experiments were conducted with two 6-L three section biofilters containing a mixture of ...
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تعیین پارامترهای انتقال حرارت با استفاده از داده های آزمایشگاهی و حل تحلیلی به روش تقریبی تغییر شکل محدود انتگرال
(University of Tehran, 2007-07-01)This paper presents a study on estimation of heat transfer coefficient and thermal diffusivity parameters by use of analytical solutions and experimental data for regular geometries (infinite slab, infinite cylinder and ...
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بررسی تجربی تغییرات انباشت فاز پراکنده با ارتفاع در ستونهای استخراج مایع- مایع ضربهای سینی دار
(University of Tehran, 2007-07-01)Holdup was measured at various frequencies, amplitudes, continuous and dispersed phase flow rates for binary systems in a pulsed plate column capable of providing samples at various heights. The binary systems was so ...
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جداسازی آب و نمک از نفت خام در میدان الکتریکی غیر یکنواخت
(University of Tehran, 2007-07-01)This study is about the non-uniform electric field for splitting of water in oil emulsion. If the process occurs in an inhomogeneous electrical field, the drops are polarized and then their mobility is increased. The ...
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استفاده از رگولاریزاسیون خطی برای پیشبینی توابع توزیع دارای چند پیک در جاذبهای ناهمگن
(University of Tehran, 2007-07-01)In the present article an energy distribution function of heterogeneous solid was estimated. Energy distribution function is an important characterization for heterogeneous adsorbent. An overall adsorption quantity for a ...
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بررسی پارامترهای مؤثر در جذب اسید لاکتیک توسط رزین امبرلایت IRA-400
(University of Tehran, 2007-07-01)
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بررسی منحنی عبور در فرآیند جذب سطحی اسید سیتریک توسط رزین آنیونی و ارایه یک مدل ریاضی
(University of Tehran, 2007-07-01)In this research paper, an experimental breakthrough curve for citric acid in an adsorption recovery process was determined by an ion-exchange resin in 20, 35, 55 °C. Also, a mathematical model for breakthrough curve was ...
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چگونگی تاثیر ابعاد نمونه بر ویژگی های الاستیک دینامیک سنگ
(University of Tehran, 2007-09-01)Wave propagation is used as an advanced tool of determining elastic properties of rocks. In spite of being cheap and non destructive tests of rock mechanics, due to its modernity method is not yet replacing the traditional ...
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طراحی محدودة بهینه نهایی در معادن روباز با روشهای اصلاح شدة مخروط شناور دو
(University of Tehran, 2007-09-01)With the advent and wide spread use of computers a number of algorithms have been developed to determine the optimum ultimate pit limits in open pit mining. The main objective of these algorithms is to find groups of blocks ...



