نتایج جستجو برای: fi catalyst
تعداد نتایج: 70508 فیلتر نتایج به سال:
مطالعه حاضر به مقایسه کیفیت فیله و ناگت تولیدی از ماهی تیلاپیای (Oreochromis niloticus) منجمد وارداتی (FI و NI) با فیله و ناگت تولیدی از تیلاپیای پرورشی (FC و NC) در کشور میپردازد. میزان ترکیبات تقریبی، بازهای نیتروژنی فرار (TVN)، تیوباربیوتوریک اسید (TBA)، پپتیدهای محلول در تریکلرواستیکاسید (َTCA)، اسیدهای چربآزاد (FFA)، میزان آبچک فیلهها (Drip loss)، ظرفیت نگهداری آب (WHC)، حلالیت پروتئین...
Background: Given the effects of ionizing radiation on biological tissues and their irreversible tissue damage, this project aimed to determine the synergic effect of TC99-m gamma radiation and non-ionizing radiation of Wi-Fi on sperm characteristics in rats. Materials and Methods: Sixty adult male rats, weighing 250-200 g randomly divided into four groups (three experimental groups and one co...
Assumptions of individual rationality and preference stability provide the foundation for a convenient and tractable modeling approach. While both of these assumptions have come under scrutiny in distinct literatures, the two lines of research remain disjointed. This study begins by explicitly linking the two literatures while providing insights into perhaps the central issue facing behavioral ...
Computers can be very helpful to us by performing tasks on our behalf. For example, they are very good at performing calculations, storing information and producing visualisations of objects that do not yet exist as a made artifact. Increasingly, however, a different role is being found for the computer. It is the role of a catalyst, or a stimulant, to our own creative thinking. In such cases t...
A simple and efficient synthesis of aryl and heteroaryl substituted pyrimidines has been developed via initial Knoevenagal, subsequent addition and final cyclization of aldehyde, ethylcyanoacetate and guanidine nitrate. Piperidine has been used as a catalyst. Short reaction time, environment friendly procedure and excellent yields are the advantages of this procedure. All synthesized compounds ...
Catalyst selectivity is associated with well-defined homogeneous active sites. Transition metal complexes and organocatalysts are highly active and selective in the homogeneous phase, and their heterogenization by incorporating them into inorganic solid materials allows combining their excellent catalytic activity with improved separation, recovering and recycling properties. In this article, w...
The aim of this paper is to analyze how different catalyst activity profiles influence the operating strategies of industrial reactors. Based on this analysis a method that can be used to transform information given by laboratory reactor experiments into a form which can be used to estimate the productivity of the catalyst and the quality properties of polymers under industrial conditions is pr...
male infertility is a distressingly common condition affecting about 1 in 20 of the male population. in a majority of the cases, the male partner produces sufficient numbers of spermatozoa to achieve fertilization but there are functional defects in these cells that prevent conception from occurring. in this study, the effects of wi-fi radiation on spermatogenesis, testes and testosterone of la...
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