توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱A Short–time Hydrothermal treatment for Synthesis of Nanoporous Faujasite Membranes
نویسنده(ها): ، ، ،
اطلاعات انتشار: همایش بین المللی ژئولیت ایران، سال
تعداد صفحات: ۸
High quality faujasite membranes were prepared using hydrothermal treatments. Tubular Porous Mullite
Supports were fabricated from Kaolin clay by a temperature–programmed calcination treatment, following a
leaching treatment. As observed in SEM photographs, the porosity of the support increased during the
leaching treatment. The NaX faujasite zeolite powders were prepared hydrothermally and characterized with
XRD and SEM. The best crystalline powder and the corresponding starting gel were respectively used for
seeding treatment and hydrothermal crystallization of a thin, continuous and fully covering X–type zeolitic
top layer on outer surface of the cylindrical support. The membrane was characterized with XRD and SEM.<\div>

۲A Hydrothermal treatment for Synthesis of Nanoporous Mordenite Membranes
نویسنده(ها): ، ، ،
اطلاعات انتشار: همایش بین المللی ژئولیت ایران، سال
تعداد صفحات: ۷
Continuous nanoporous mordenite membranes were fabricated on tubular microporous mullite supports.
A hydrothermal treatment in a brass autoclave was used to prepare the zeolite membranes. The membranes
and the powder crystals collected from the bottom of the autoclave were characterized with XRD and SEM.
The membranes pervaporation properties were assessed using different ethanol feeds dehydration. The
mordenite crystallization is entirely performed at 443 k in 24 h. The continuous top–layer of the membrane
was formed by many large and oriented crystals. The polycrystalline membranes were selective for
dehydration of different ethanol\water mixtures. So, the membranes have negligible intercrystalline pores.<\div>

۳Recent Desalinations of Brine: A Review
نویسنده(ها): ، ،
اطلاعات انتشار: اولین کنفرانس بین المللی تصفیه فاضلاب و بازیافت آب، فناوری ها و یافته های نو، سال
تعداد صفحات: ۷
Although around 2\3 of Earth surface is covered with water, its shortage remains a great threat in almost every sector of human society. Incorrect consumption patterns, increasing world population and consequently water consumption and pollution depletes the scarce source of existing drinking water at a dangerous rate especially in developing countries such as Iran. Therefore, there is an ever–increasing demand to use alternative sources of water at rivers and seas. Recently, there has been a considerable progress in this area. In this article, a review is made on a variety of desalination methods available in the industry including: Vapor Compression Distillation (VCD), Solar Evaporation (SE), Freeze Desalination (FD), Multistage Flash Distillation (MSF), Multiple Effect Distillation (MED), Reverse Osmosis (RO), Electro–Dialysis (ED), and application of Carbon Nanotube Membranes (CNM). Considering the climatic properties, cost analysis and efficiency of these methods, ED and RO were found to be most appropriate methods for middle–eastern countries such as Iran.<\div>

۴application of surfactants inliquid membranes for metal extraction
نویسنده(ها): ، ، ،
اطلاعات انتشار: دومین همایش علوم و فناوری مواد فعال سطحی و صنایع شوینده، سال
تعداد صفحات: ۱۷
liquid surfactant membranes LSMs have developed into a versatile technique for a variety of applications involving selective and controlled transport of metal and heavy metal ions. In this technique surfactants plays an important role some of them are utilized as an emulsifier , a carrier or both of them but soubtless the most important of their role is as stabilizer . some of the profitable surfactants were used in LSM for metal ions extraction are polythylene glycol –type PEG span80 and ECA 4360.<\div>

۵Sequence characterized amplified region marker as a tool for selection of high–artemisinin containing species of Artemisia
اطلاعات انتشار: Research in Pharmaceutical Sciences، دهم،شماره۵(پياپي ۳۲)، ۲۰۱۵، سال
تعداد صفحات: ۷
Malaria is currently one of the most important causes of mortality in developing countries. High resistance to available antimalarial drugs has been reported frequently, thus it is crucial to focus on the discovery of new antimalarial drugs. Artemisinin, an effective antimalarial medication, is isolated from various Artemisia species. To identify the Artemisia species producing high quantity of artemisinin, eight species of Artemisia were screened with the genetic sequence characterized amplified region (SCAR) marker for higher quantity of artemisinin. The DNA band corresponding to SCAR marker was cloned into pGEM®–T Easy vector and sequenced. The content of artemisinin in tested species was also measured using high–performance liquid chromatography (HPLC) assay. The primers designed for high–artemisinin SCAR marker could amplify a specific band of approximately 1000 bp which was present in two Artemisia annua and Artemisia absinthium species. These SCAR marker sequences for two selected species were submitted into the GenBank databases under KC337116 and KC465952 accession numbers. HPLC analysis indicated that two selected Artemisia species, genetically recognized as high–artemisinin yielding plants, had higher artemisinin content in comparison to other examined species. Therefore, in this study, we propose developed SCAR marker as a complementary tool for confidently detection of high–artemisinin content in Artemisia species.
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