نتایج جستجو برای: develop and steer the pressure systems farajzadeh et al
تعداد نتایج: 21534419 فیلتر نتایج به سال:
This paper proposes mathematical modeling and analysis of ferrofluid lubricated newly designed slider bearing having convex pad (surface or plate) stator with two porous layers attached to the slider. The problem considers the effect of slip velocity proposed by Sparrow et. al.[1] and modified by Shah et. al.[2] at the film-porous interface. The squeeze velocity V=−which appears when the upper ...
the potential sources of cr (vi) are various effluents from metallurgy, electroplating, leather tanning, textile dyeing, paint, ink, and aluminum manufacturing industries. these industrial effluents can contain cr (vi), in the concentration range of 10 to 100 mg/l (nakano et al 2000), which is much higher than the standard limit; 0.5 mg/l in industrial wastewater (epa). in aqueous systems, chro...
abstract english language learning in iran has become significant in recent years, and english has been included in the curriculum of iranian schools and universities, and considerable attention has been paid to this language in our society. nevertheless, teaching and learning english in iranian schools has not been able to satisfy the specified goals, so different efl institutes have been est...
The time has come when ensemble-based Kalman filter data assimilation schemes can be considered for implementation on operational weather forecast systems in the foreseeable future. For the first time, an ensemble Kalman filter has been reported to break even with a sophisticated operational 3DVar system (Houtekamer et al 2004), to outperform the NCEP 3D-Var in reconstructing the state of the m...
nowadays,tourism industry considered as one of the main sources of income of a country.unfortunately and despite of owning plenty of cultural historical and natural attractions, iran has not reached to a proper position in this field. besides, the historical cities of a country are considered as the income resource and national wealth of it. qazvin with a rich cultural precedent, have suitable ...
the research questions were as follows: 1. is there any relationship between the students concious awareness of the form and implications of the conjuncations and their improvement in using appropriate conjunctions? 2. does students knowledge of the from and the implications of the conjunctions help them to produce more coherent writings. 3. does a comparison between english conjunctions and th...
انگور از جمله مهمترین محصولات باغی است که در ایران سطح زیر کشت وسیعی داشته و بخش عمده ای از آن به صورت تازه خوری مصرف می شود. ازدست دهی آب و پوسیدگی های قارچی از مهمترین عوامل محدود کننده عمر انبارمانی میوه انگور هستند. ازدست دهی آب باعث نرم شدن و چروکیدگی حبه ها و به دنبال آن افزایش فعالیت آنزیم ی باعث قهوه ای شدن چوب خوشه می شود، همچنین پوسیدگی های قارچی نیز عامل مهمی در کاهش عمرانبارمانی خوش...
the primary goal of the current project was to examine the effect of three different treatments, namely, models with explicit instruction, models with implicit instruction, and models alone on differences between the three groups of subjects in the use of the elements of argument structures in terms of toulmins (2003) model (i.e., claim, data, counterargument claim, counterargument data, rebutt...
We study entanglement and squeezing of a cluster of spin systems under the influence of the two-axis countertwisting Hamiltonian. The squeezing parameters given by Wineland et al and also by Kitagawa et al. are chosen as the criteria of spin squeezing. The criterion of pairwise entanglement is chosen to be the concurrence and that of the bipartite entanglement the linear entropy. We also define...
acknowledge the importance of e-commerce to their countries and to survival of their businesses and in creating and encouraging an atmosphere for the wide adoption and success of e-commerce in the long term. the investment for implementing e-commerce in the public sector is one of the areas which is focused in government‘s action plan for cross-disciplinary it development and e-readiness in go...
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