نتایج جستجو برای: wall
تعداد نتایج: 169225 فیلتر نتایج به سال:
This research is aimed to find an energy optimization method for existing buildings in cold climate regions of Iran. In the proposed system, a secondary skin is installed against the unglazed surfaces of the southern wall, creating a Trombe-wall. The sun-facing wall is then painted in black, and covered with a transparent material like clear glass, leaving a closed air gap between them. The res...
In the narrow geosynthetic-reinforced retaining walls a stable rear wall exists in a short distance and so there is no enough space to extend appropriate length of reinforcements. In this case, the probability of overturning of retaining wall increases especially when subjected to earthquake loading. To increase the stability of the wall, reinforcements may be connected to the stable rear surfa...
Background: Endometriosis is a benign disease of female genital system, which often occurs in the reproductive age and it is defined by the presence of tissue resembling endometrial glands and stroma outside the uterine cavity. Endometriosis is found in two types of pelvic and extrapelvic. The most common type of extrapelvic endometriosis is cutaneous endometriosis which can occur either spon...
In this study, the results of a direct numerical simulation of turbulent drag reduction in a channel flow by hydrophobic coating at a nominal shear Reynolds number of Reτ = 180 are reported. Slip condition is imposed on the lower wall whereas the upper wall has no-slip condition. For this purpose, the use is made of a numerical simulation of three-dimensional, time-dependent Navier-Stokes e...
Chest wall surgery is a new specialty, which comes from the traditional thoracic but it has characteristics. Because chest must consider appearance of wall, can be regarded as plastic surgery. In addition, because every kind disease involves changes bony structures also orthopedics. The concepts and orthopedics have injected thinking into played positive role in its final healthy development. T...
Thrust chamber cooling system is an important issue in liquid missile systems. In this paper, two more applicable systems, that is, regenerative and radiation cooling systems are studied. Regenerative cooling systems, which are mostly used in high pressure thrust chambers, are normally in two forms, tubular wall structure and double wall structure. Tubular structure has mostly a square form str...
ABSTRACT Among the causes of ascites, there is two kinds, including cirrhotic and malignant ascites that conventional diagnostic method for them is Paracentesis. This method is invasive and time consuming, however sonography is an easy and available method for providing valuable results in a short period of time. The aim of this study is survey of valuability of gallbladder wall so...
Introduction: The horizontal bony canal in the lateral maxillary wall is the site of anastomosis between the arterial branches from the posterior superior alveolar artery (PSAa) and the infraorbital artery. This anatomic structure is known as the ‘alveolar antral artery’. Materials and Methods: We performed a literature review. The anatomic location of the alveolar antral artery in the latera...
the aim of this investigation was to evaluate the use of polypropylene mesh and glycerol preserved bovine pericardium (gbp) to repaire abdominal wall defects in 24 clinically healthy mongrel dogs using inlay and underlay techniques. twenty four healthy mongrel dogs were used in this study. the animals were divided into two main groups according to the type of the prosthetic material used. each ...
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