نتایج جستجو برای: liquis extraction
تعداد نتایج: 165505 فیلتر نتایج به سال:
Drill mud is a fluid which is used in oil extraction industries in order to cool and lubricate the drill bit. Due to containing numerous toxic components, it is considered as a hazardous waste which must be treated before discharging to the environment. Current separation techniques for drill cutting treatment can be categorized into three main categories of physical (dewatering), physiochemica...
it has been reported that latex and extracts of different species of ficus are cytotoxic to some human cancerous cell lines. in this study, cytotoxicity of fruit and leaf extracts as well as the latex of ficus carica l. on hela cell line were evaluated. ethanolic extracts of leaves and fruits were prepared through percolation and ethyl acetate and dichloromethane extracts were prepared by reflu...
introdouction: impacted mandibular third molar surgery may affect periodontal status of the adjacent second molar. the purpose of this study was to evaluate the changes in periodontal health parameters distal to the adjacent second molar following surgical extraction of an impacted mandibular third molar. materials and methods: we selected 50 subjects with a mean age of 22.8 (ranging from 18 to...
mandibular incisor extraction in carefully selected cases as an alternative option to four bicuspid extraction or non extraction treatment has been advocated. the purpose of this study was to determine the degree of improvement in occlusion in patients with bolton discrepancy treated by one lower incisor extraction using peer assessment rating index (par indexes).pre and post treatment dental c...
در این مطالعه مرفولوژی اسپرم بدست آمده با دو روش tese و pesa مورد بررسی قرار گرفت. این مرفولوژی، با کمک tygerberg strict criteria بررسی شد. 45 بیمار مبتلا به آزواسپرمی انسدادی مورد بررسی قرار گرفتند . روش tese و pesa با روش معمول و بی حسی موضعی انجام شد. درصد اسپرم طبیعی و اسپرم غیر طبیعی در هر دو گروه بدست آمد. میانگین میزان اسپرم طبیعی در نمونه های tese 2/6 درصد و در نمونه pesa 6/18 درصد بود ...
the aim of this study was to report a new cause of cataract, namely snake bite induced cataract in a dog. a 3-year-old male mongrel dog was referred to our clinic for the assessment of cataract in both eyes. the dog was bitten by a snake nearly 4 months ago. a 40 dioptre acrylic lens with 13 mm haptics was implanted into the lens capsule. in the left eye, posterior synechia was detected in the ...
pectin is used as gelatinizing agent in food industry. in this study pectin was extracted from five commercial sugar beet varieties namely: doroty, rasul, 7112, br1 and ic using pre-hydrolysis technique. experiments were conducted using factorial design to verify the effect of temperature, time, percentage of hcl and water requirements on the extraction rate of pectin. the qualitative factors o...
a chelating resin is prepared by condensation polymerization of aniline with formaldehyde andcharacterized by ft-ir, elemental analysis and studied for the preconcentration and determination of traceplatinum ion from environmental water sample using inductively coupled plasma-atomic emission spectroscopy(icp-aes). the optimum ph value for sorption of the metal ions was 5. the maximum adsorption...
styrene is an important constituent of widely used organic solvents in industries for production of various synthetic materials. the use of solid-phase extraction (spe) has grown and is a fertile technique of sample preparation as it provides better results than those produced by liquidliquid extraction. in this study, spe has been optimized, regarding sample ph, sample concentration, sample fl...
objective: in this study, the possibility of prenatal diagnosis of down syndrome with real-time pcr method was evaluated. in this context, optimization of a suitable method for purification of high quality dna from amniotic fluid samples was also considered. materials and methods: pregnant women who had the high risk of having babies with down syndrome were selected according to the biochemica...
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