Drainage pipe blockage resulting from crystals is one of the causes for cracking and leakage tunnel lining. Therefore, effective prevention drainage caused by crucial to ensure safety stability lining structures during operation system. Based on a large number indoor model tests numerical simulation analyses, binding energy between four materials calcium carbonate aqueous solution (“solid + liq...

Sand coverings account for a large part of the cost of a project. The purpose of this study is to evaluate the performance of different coatings for filtration of underground drains and reduce the cost of cornfield farms. The experiments were carried out in farm in Salman Farsi. The subsoil drainage was fitted to each test piece with a length of 120 meters, a diameter of 100 mm, and a distance ...

Background: Historically open surgical drainage has been the treatment of choice for pyogenic liver abscess. The records of 54 patients with pyogenic liver abscess were reviewed to determine whether earlier diagnosis with current imaging tests and definitive treatment with antibiotics and aspiration drainage was an effective alternative to surgery. Methods: The clinical features, laborator...

A new concept of vapour condenser is proposed to solve the drainage problem and provide an effective condensate flow under weightlessness conditions. The combines capability a curvilinear surface drive liquid, combination porous media pump, as active retraction system. collects stores condensed fluid acts barrier for phase. Hydrodynamic validation liquid was done against overflow terrestrial It...

An in-depth analysis of the kinetics collision between freely rising oil droplets in water range Re = 4.64–463.3 was carried out to understand physical mechanism and detailed interaction wall. The results show that when with ≥ 27.8 hit wall vertically at terminal velocities, a “dimple-like” film is formed near wall, which significantly affects pressure distribution within film, oil–water interf...

abstract although lateral drains play the main role in removal of excess water from soil profile in subsurface drainage systems, but it is assumed that perforated collectors can directly remove a part of drainwater from soils. this part of discharge in subsurface drains is not usually taken into consideration in drainage design criteria, due to lack required information and its difficult estima...

Im ages Seromas and hematomas are relatively common complications of a variety of surgical procedures. In plastic surgery, they may occur in the postoperative period of abdominoplasty or abdominal wall reconstruction, mastectomy or breast reconstruction, lymphadenectomy, or voluminous neoplasm excision. Furthermore, in our experience, seromas are particularly common in surgical procedures invol...