نتایج جستجو برای: new geometrical model

تعداد نتایج: 3654054  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده مدیریت و اقتصاد 1391

abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...

Journal: :تاریخ علم 0
امیرمحمد گمینی دانشجوی دکتری مطالعات علم؛ مؤسسه حکمت و فلسفه ایران

the main problem of ptolemaic model of the superior planets was related to the “equant point”. it is a geometrical point with respect to which the motion of the deferent sphere is uniform. but it cannot be acceptable on the basis of aristotle's philosophy on the motions of celestial spheres. astronomers of maragha school devised some new models to avoid this problem, while they were in acc...

Journal: :International Journal of Geometric Methods in Modern Physics 2018

Journal: :Acta Societatis Botanicorum Poloniae 2014

In this paper, a novel approximate solution to determine the Nusselt number for thermally developed, slug (low-prandtl), laminar, single phase flow in channels of arbitrary cross section is presented. Using the Saint-Venant principle in torsion of beams, it is shown that the thermally developed Nusselt number for low-prandtl flow is only a function of the geometrical parameters of the channel c...

Journal: :Journal of Non-Crystalline Solids 1998

Journal: :Journal of Mathematical Imaging and Vision 2017

Journal: :Nucleation and Atmospheric Aerosols 2021

Chamber models are wildly used for a screw vacuum pump capacity calculation. Those allow to take into account lot of factors which have great influence on the capacity, and working power. The first stage chamber models’ development is mathematic description geometrical parameters. This paper presents time-depending parameters, such as volume, areas suction discharge ports, gaps gas leakage goes...

2010
Khairy Elsayed Chris Lacor

A Response surface design of experiment has been performed based on the Muschelknautz method of modeling (MM) for 64 test cases using Box-Behnken design to study the effect of seven geometrical cyclone dimensions on the pressure drop and cut-off diameter. It is found that the most significant geometrical parameters are, the vortex finder diameter, the inlet section width and height, and the cyc...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید