نتایج جستجو برای: pseudocyclic cavity
تعداد نتایج: 78889 فیلتر نتایج به سال:
In this study, mixed convection heat transfer and local and global entropy generation in aventilated square cavity have been investigated numerically. The natural convection effect isachieved by a constant heat flux imposed at the bottom wall and cooled by injecting a coldfollow. In order to investigate the effect of port location, four different placementconfigurations of the inlet and outlet ...
The present paper focuses on problem of mixed convection fluid flow and heat transfer of Al2O3-water nanofluid with temperature and nanoparticles concentration dependent thermal conductivity and effective viscosity inside Lid-driven cavity having a hot rectangular obstacle. The governing equations are discretized using the finite volume method while the SIMPLER algorithm is employed to couple v...
Resonant structure is one of the proposed methods in combining power in RF systems of RF accelerators. In this structure, fabrication of RF power divider or combiner using coaxial and cylindrical cavity is important. In this study, two combiners, in the same frequency band, are designed and fabricated; and their results are compared. The experimental results confirmed the simulation results an...
Considering the challenges in fabrication and electromagnetic characterization of linear accelerator tube, first four major effective parameters in cavity fabrication, including cavity material, dimension agreement, surface roughness and concentricity of cavities have been studied. Then, considering appropriate electromagnetic properties, fabrication results of cavities, techniques for their re...
Here we report a case of co-infection of hydatid cyst with invasive apergillosis, in a previously healthy, non immunocompromised, 26year old man. Chest x-ray revealed a large cystic cavity in left upper lobe of lung histopathologic examination of the specimen confirmed the diagnosis of hydatid cyst with numerous fungal hyphea which invaded the laminated wall of the cyst. Although, co-infection ...
This case report is a 65 year old woman from Kerman. Her main complian is nasal obstruction and recurrent nasal bleeding from five months ago. In clinical examination there was a large tumor in left nasal cavity. CT scaning revealed a large tumor in left nasal cavity and maxillary sinuse. The tumor is resected compeletely with negative safe margine by radical caldwell- luc approach. The origin ...
Studying confined quantum systems (CQS) is very important in nano technology. One of the basic CQS is a hydrogen atom confined in spherical cavity. In this article, eigenenergies and eigenfunctions of hydrogen atom in spherical cavity are calculated, using linear variational method. B-splines are used as basis functions, which can easily construct the trial wave functions with appropriate bound...
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