نتایج جستجو برای: membrane operations
تعداد نتایج: 524187 فیلتر نتایج به سال:
The aim of this study is the utilization membrane distillation (MD) in treatment hydrothermal liquefaction wastewater (HTL-WW) to recover ammonium condensate. Experiments were carried out using MD under air–gap configuration with HTL-WW pretreated via Ultrafiltration. results showed stability long-term operations, up 36 days and through a wide range feed temperatures, from 30 °C 60 (Coolant tem...
Background: During last decades, many otologists attempted to make a long standing dry ear, resulting in better hearing after cholesteatoma surgery. This study evaluated the prognosis of two common methods of cholesteatoma ear surgery considering ten years follow-up. Methods: This retrospective analysis was done using medical records of 108 adult patients with cholesteatoma. After ten years of ...
BACKGROUND Minimally invasive cardiovascular operations have been proposed as an alternative method to correct several cardiac congenital and acquired heart diseases, with the aim to reduce morbidity and mortality. OBJECTIVES Describe the two years initial experience with minimally invasive operations, with emphasis on technical aspects and the learning curve. METHODS Between July 2009 and ...
A closed-loop recycling process is being investigated (using membrane technology) to remove soils from industrial surface cleaning Operations. This recycling process combines cleaning chemical (aqueous and semi-aqueous formulations), cleaning equipment and closedloop recyding methods tb minimize soil loading in a parts cleaning process. Closed-loop recycling and the need for it is the primary t...
Fifty-five patients received total cardiopulmonary support with the disposable Lande-Edwards membrane oxygenator during aortocoronary artery-vein graft operations and other complex open heart operations. Two three meter2 membrane oxygenators were linked in parallel to a standard r o b pump apparatus. (Three 3 meter2 membranes for patients weighing 80 to 103 kg.) Excellent oxygen and carbon diox...
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