نتایج جستجو برای: نانوکامپوزیت pe
تعداد نتایج: 24430 فیلتر نتایج به سال:
The thermal degradation of polyethylene (PE) was carried out in the absence and presence ofcatalystes X-Zeolite and Silica-Alumina at different temperatures. The optimum PE/Catalysisratio was 0.25:0.05 g/g, which produced highest degradation value. PE and PE/Catalysis werecharacterized by thermogravimetric analysis. The thermal degradation properties of polymerhave been studied by Infrared spec...
Background and Objectives: Beyond the influence of anthropometric, demographic and race, nutrition is considered as one of the most important risk factors for development of preeclampsia (PE). The issue has grown controversial in light of recent reports. This paper, purposes to compare the nutritional and demographic status between PE women and normal pregnancy in south east of Iran. Materials...
The pupil should be dilated up to 6mm for eye examination, but systemic absorption of phenylepherin eye drop (PE) leads to serious complications. This study compared the effect of 2.5% and 5%PE with and without cyclopentolated 1% (CP) on pupillary dilation and pulse and blood pressure (BP) in patients refering to out patient clinic. Inorder to reach to a less toxic dose of PE. This is a pro...
The effects of three different mixers, two different feeding orders and nanoclay content on the structure development and rheological properties of PE/nanoclay nanocomposite samples were investigated. Fractional Zener and Carreau–Yasuda models were applied to discuss the melt linear viscoelastic properties of the samples. Moreover, scaling law for fractal networks was used to quantify clay disp...
the thermal degradation of polyethylene (pe) was carried out in the absence and presence ofcatalystes x-zeolite and silica-alumina at different temperatures. the optimum pe/catalysisratio was 0.25:0.05 g/g, which produced highest degradation value. pe and pe/catalysis werecharacterized by thermogravimetric analysis. the thermal degradation properties of polymerhave been studied by infrared spec...
The aim of this study was to examine of the factorial structure of the Self- Regulation Questionnaire in college physical education class (SRQ-PE). 277 students were selected by cluster random sampling in Urmia universities. The results of confirmatory factor analysis determined 5-factor model for the structure of the SRQ-PE with 71.03% of total variance. The confirmatory factor analysis showed...
Demonstration of autoimmune antiphospholipid antibodies (aPA) to negatively charged phospholipids (PL) in an enzyme-linked immunosorbent assay (ELISA) requires the presence of certain phospholipid-binding plasma proteins, eg, beta 2-glycoprotein I. We found a requirement for plasma against the electrically neutral or zwitterionic phospholipid, phosphatidylethanolamine (PE). Two of these PE-bind...
اثر یک نانوکلی از نوع مونت موریلونیت که با یون آمونیوم نوع چهارم اصلاح شده است (closite 15 a)، بر تخریب نوری- اکسایشی pe بررسی شده است و نتایج حاصل از این بررسی با نتایج حاصل از تخریب نوری- اکسایشی pe در حضور دو افزودنی حساس گر نوری شناخته شده (بنزوفنون و استئارات آهن) مقایسه شده است. روش های تهیه نمونه های مربوطه و فرآیند تخریب نوری–اکسایشی آنها (در weatherometer) در متن ارائه شده است.پیشرفت و...
Can we model speech recognition in noise by exploring higher order statistics of the combined signal? How will changes in these statistics affect speech perception in noise? This study addresses these questions in two experiments. One investigated the relationship between an established ”glimpsing” model and the fourth order statistic, kurtosis. The glimpsing model [1] proposes that listeners c...
Polyethylene (PE) nanocomposites containing Cellulose Nano Crystal (CNC) were prepared via melt blending in a twin screw extruder. The evaluation of PE/CNC nanocomposites was studied for food packaging applications. The nanocomposites were investigated by thermal, mechanical analyses. Addition of CNC particle while having no effect on melting and crystallization temperature had intensive effect...
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