نتایج جستجو برای: فازگازی co2
تعداد نتایج: 70760 فیلتر نتایج به سال:
enzyme (Pu-NPase ID is a mi-or enzyme that eMciently phosphorolyzes adienosine and its deriyatiyes ratheT tha" Gther puri"e rmcleosides ]ike Escherichia coti Pu-NPase. The gene coding for Pu-NPase II (punB' gene) has beelt clloned andi sequenced from TH 6-2 strain. The deduced amine acid sequence of Pu-NPase II shared 54`M, iderwity with that of E. coii enzyme, while it had no significant homel...
Direct and indirect metabolic CO2 release by humanity Y. T. Prairie and C. M. Duarte Département des sciences biologiques, Université du Québec à Montréal, P.O. Box 8888, succ. Centre-Ville, Montréal, H3C 3P8, Canada IMEDEA (CSIC-UiB), Instituto Mediterráneo de Estudios Avanzados, C/ Miquel Marqués 21, 07190 Esporles (Mallorca), Spain Received: 26 October 2006 – Accepted: 16 November 2006 – Pub...
Terrestrial plant and soil respiration, or ecosystem respiration (Reco ), represents a major CO2 flux in the global carbon cycle. However, there is disagreement in how Reco will respond to future global changes, such as elevated atmosphere CO2 and warming. To address this, we synthesized six years (2007-2012) of Reco data from the Prairie Heating And CO2 Enrichment (PHACE) experiment. We applie...
In the title compound, [Co(C57H52N6O6)], the central CoII atom is coordinated by four pyrrole N atoms of the porphyrin core and one O atom of the crown ether. The complex has a distorted porphyrin core, with mean absolute core-atom displacements of 0.14 (10) (Ca), 0.20 (10) (Cb), 0.24 (4) (Cm) and 0.18 (10) Å (Cav), respectively. The axial Co-O bond length is 2.3380 (15) and the average Co-Np b...
Title of Dissertation: HEAT TRANSFER AND MECHANICAL DESIGN ANALYSIS OF SUPERCRITICAL GAS COOLING PROCESS OF CO2 IN MICROCHANNELS Guohua Kuang, Doctor of Philosophy, 2006 Directed By: Professor Michael Ohadi, Department of Mechanical Engineering Professor Balakumar Balachandran (Co-Advisor), Department of Mechanical Engineering An extensive review of the literature indicates a lack of systematic...
جداسازی و تثبیت دی اکسید کربن به وسیله ریزجلبک ها افزایش غلظت دی اکسید کربن موجود در اتمسفر یکی از دلایل عمده گرم شدن کره زمین است. جریان گازهای خروجی از واحدهای صنعتی تقریباً شامل 3 تا 15% دی-اکسید کربن می باشد و ریزجلبک ها co2 را به عنوان منبع کربن طی فرایند فتوسنتز مصرف می کنند. در این تحقیق ریزجلبک chlorella sp جهت جداسازی co 2 و تولید زیست تولد در دو فتوبیوراکتور لوله ای و صفحه صاف کشت د...
مطالعه ترمودینامیکی احیای مولیبدنیت با کربن، در حضور اکسیدمنیزیم، انجام شد. دیاگرام های پایداری مربوط به دو سیستم mos2-mgo و mos2-mgo-c در دمای ثابت k1200 رسم و مورد بررسی قرار گرفتند. این بررسی ها نشان داد که فرآیند با اکسیداسیون مستقیم مولیبدنیت به وسیله اکسید منیزیم و در ادامه با تشکیل فازهای میانی اکسیدمولیبدن، نظیر moo2 وmgmoo4، پیش می رود. ترکیب فازهای گازی موجود در فرآیند، حاکی از آن بود...
introduction: epulis fissuratum is often formed as a result of a poor fitting denture. the conventional treatment for this fibrous hyperplastic tissue is to excise it using a scalpel and to close the wound by a continuous or an interrupted suture. the increased utilization of lasers in dentistry also includes the utilization of carbon dioxide (co2) lasers in place of surgical scalpels in soft t...
introduction: the purpose of this study was to investigate the effect of 6w power carbon dioxide laser (co2) on the biologic compatibility of the sandblasting with large grit and acid etching (sla) titanium discs through studying of the sarcoma osteogenic (saos-2) human osteoblast-like cells viability. methods: sterilized titanium discs were used together with saos-2 human osteoblast-like cells...
Different modified atmosphere conditions with various CO2 concentrations on microbial load (psychrophile, mesophile aerobic and anaerobic bacteria) and physico-chemical properties of barramundi (Lates calcarifer Bloch) fillets stored at 8°C were compared to determine the best packaging conditions. The gas conditions evaluated were 100% CO2 (M1), 75% CO2/25% N2 (M2), 50% CO2/50% N2 (M3), 25% CO...
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