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بررسی سینتیک تجزیه زیستی یک آلاینده، نکته اصلی در مشخصه سازی عملکرد یک فیلتر زیستی است. در این پژوهش، از یک مجموعه قارچ جدا شده از بستر کمپوست فیلتر زیستی که پیشتر برای حذف بخار هگزان از هوا به کار گرفته شده بود، برای مطالعه سینتیک حذف هگزان استفاده شد. توانایی این مجموعه قارچی، با تأکید بر اثر دما و غلظت آلاینده، در یک سامانه های ناپیوسته در فاز مایع مورد مطالعه قرار گرفت. غلظت هگزان در...
In this research, Ni-Mo/Cs1.5H1.5PW12O40/S (S=SiO2 or Al2O3 or ASA (amorphous silica alumina)) nanocatalysts with different supports were prepared via 2 steps with impregnation method and the effect of support on the characteristic and catalytic properties of the prepared samples was studied. The synthesized sam...
Fifty-two non-organic dyspeptics, 40 organic dyspeptics and 40 age-sex matched normal controls administered the Hindi version of Middlesex Health Questionnaire and the Amritsar Depressive Inventory. The non-organic cases scored significantly higher compared to the other two groups on the both the tests and on all the sub-scales of the MHQ. Cases with irritable bowel syndrome scored maximum on o...
A pot experiment was conducted in a completely randomized design, to study the effect of zinc sulphate (ZnSO4) and Ascorbic acid(AS) foliar application application 20 and 40 ppm was compared to the control (distillated water) on flowering Gazania (Gazania rigens L. daybreak red stripe).Results were analyzed by SPSS software and Duncan test. Results showed that ZnSO<...
Scaling the voltage to the sub-threshold region is a convincing technique to achieve low power in digital circuits. The problem is that process variability severely impacts the performance of circuits operating in the sub-threshold domain. In this paper, we evaluate the sub-threshold sizing methodology of [1,2] on 40 nm and 90 nm standard cell libraries. The concept of the proposed sizing metho...
Introduction: The risk of radioactivity addresses human life directly. The natural rock radioactivity is mainly due to 232Th, 238U), and 40K series. Activities involving blasting, crushing, and processing of rocks into numerous pieces lead to release of radionuclides into the atmosphere in the form of dust particles. M...
در این تحقیق اثر عصارهی سرخارگل بر عملکرد و پاسخهای ایمنی در شرایط سرکوب ایمنی با استفاده از 240 قطعه جوجهی گوشتی بررسی شد. عصاره به مقدار صفر (E0)، 1 (E1) و 5/2 (E2.5) میلیلیتر در لیتر از روز 6 تا 42 به صورت مستمر به آب آشامیدنی اضافه گردید. در روزهای 14، 15، 16، 34، 36، 38 و 40 به نیمی از جوجهها در هر سطح عصارهی سرخارگل برای سرکوب ایمنی، سیکلوسپوری...
An extensive study of Fischer-Tropsch synthesis (FTS) on alumina-supported cobalt catalysts with different amounts of cobalt is reported. Up to 40 wt % of cobalt, is added to the catalysts by impregnation method. The effect of the cobalt loading on the reducibility of the cobalt oxide species, dispersion of the cobalt, average clusters size, water-gas shift (WGS) activity and activity and s...
In Sub-Saharan Africa, 40% of the burden of disease and injury can potentially be addressed by emergency care. Adequate pre-hospital care is vital, but often unavailable in Sub-Saharan Africa. Initial help and emergency transport often depends on basic first responders. The World Bank identified first aid training as cost-effective way to save lives in Sub-Saharan Africa. Although well-intentio...
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