نتایج جستجو برای: sodium metabisulfite treatment control glazing yield
تعداد نتایج: 2840850 فیلتر نتایج به سال:
The windshield is one of the major components in a vehicle that determines the injury to a pedestrian’s head. Therefore, it is critical to study the damage to windshield glazing so as to promote the protection structure for pedestrians. In this paper, classical plate theory in combination with the Green strain and the von Karman assumption is used to develop constitutive relations to describe t...
the treatment of in completely formed pulpless teeth has presented considrable problems. these teeth have wide open apexes and the walls of the root canal diverge toward the apical tissues. mechanical preparation cannot be done in the normal manner beacause of the large initial size and the taper of apical part of the canal , a mechanical stop cannot be produced at the apex of the canal and , t...
this study was an attempt to investigate the effect of subtitling on vocabulary learning among iranian intermediate students. to find the homogeneity of the groups, tofel test was administered to student in kish mehr institute in garmsar. after analyzing the data, 60 participants (female students) who scored within the range of one standard deviation above and below the mean, were selected as h...
abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...
Background: Given that no comprehensive study was conducted regarding the effect of sodium chloride on the prevention of mucormycosis fungal infection in acute leukemia patients during treatment, this study aimed the investigating the effect of sodium chloride on the prevention of mucormycosis fungal infection in acute lymphocytic leukemia patients during treatment. Materials and Methods: Thi...
in vitro effects of four porcelain surface treatment methods on adhesion of lactobacilli acidophilus
objective: adhesion of lactobacillus acidophilus (l. acidophilus) to dental porcelain surface may lead to gingival inflammation and secondary caries. surface roughness is among the factors affecting this adhesion. the purpose of this study was to evaluate the effects of four different surface treatment methods on adhesion of l. acidophilus to dental porcelain. methods: sixty specimens (3x10mm...
Salinity is a major environmental stress that causes severe damage to crop and horticultural products and also reduce plant biodiversity. Today with using grafting method overcome problem of soil salinity and ultimately, higher-quality products are yield of. In this study, water melon (cv. Sugar baby) was grafted on to the hybrid rootstocks of shintozwa (Cucurbita maxima×Cucurbita moschata), pe...
E NEED for an accurate and simple determination for serum glutamic oxalacetic transaminase (SGO-T) in the clinical laboratory led! us to investigate a procedure published recelltiy by Babson et al. (1,2). III this niethod the (hiazonium salt, (i-bellzamido-4-methoxv-ln-tolui(line (liazoluunl chloride, pro(111c’s a higilly specific color for the oxalacetic acid! fornied as a product of transamin...
Polyphenoloxidase (PPO; EC 1.14.18.1) extracted from Mentha arvensis leaves was isolated by (NH4)2SO4 precipitation and extensive dialysis. Its optimum pH and temperature varied with the substrate. The PPO showed activity with various diphenols. Km values were found 0.825, 0.928 and 7.41mM for caffeic acid, 4-methylcatechol and catechol, respectively. On heat-inactivation, half of the activity ...
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