نتایج جستجو برای: extraction time

تعداد نتایج: 2027083  

Journal: :Journal of Statistical Mechanics: Theory and Experiment 2021

Abstract Extracting a proper dynamic network for modeling time-dependent complex system is an important issue. Building correct model related to finding out critical time points where exhibits considerable change. In this work, we propose measure similarity detect intervals. We develop three metrics, node, link, and neighborhood similarities, any consecutive snapshots of network. Rather than la...

Journal: :journal of food biosciences and technology 2016
y. vasseghian gh zahedi m ahmadi

this study investigates the oil extraction from pistacia khinjuk by the application of enzyme.artificial neural network (ann) and adaptive neuro fuzzy inference system (anfis) were applied formodeling and prediction of oil extraction yield. 16 data points were collected and the ann was trained with onehidden layer using various numbers of neurons. a two-layered ann provides the best results, us...

Introduction: Synaptosomes are sealed particles that contain mitochondria, cytoskeleton and vesicles which are necessary to synaptic events like neurotransmitter release and uptake in the nervous system. However, the effect of high and low temperatures on synaptosome membrane integrity and function during a time course after its extraction is less known. The purpose of this study was to assess ...

AgNPs-Tragacanth conjugate gel as an eco friendly and low cost membrane was applied for the effective electromembrane extraction (EME) of Tenofovir disproxil fumarate, an important acidic and high polar (log p=1.25) antiviral drug, followed by HPLC-UV determination. The effect of various parameters on the extraction efficiency including the presence of AgNPs, tragacanth gum concentration, gel t...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2012
mojtaba haydari-majd sayed ali mortazavi javad asili shadi bolorian mohammad armin

background & aim: restrictions on the use of synthetic antioxidant such as butylated hydroxyanisole (bha) and butylated hydroxytoluene (bht) are being imposed because of their carcinogecity . experimental: in this investigation, optimization of phenolic extraction process from methanolic (80%) extract (v/v) of  flomideschema parviflorum through response surface methodology by fulin cio-calt...

ژورنال: :journal of dental school, shahid beheshti university of medical sciences 0
حسن علی شفیعی hassanali shafiee dental school, shahid beheshti university of medical sciences, tehran–iran ([email protected])دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی فرشاد رحیمی farshad rahimi dental school, kermanshah university of medical sciences, kermanshah iran.دانشکده دندانپزشکی، دانشگاه علوم پزشکی کرمانشاه. علیرضا اکبرزاده باغبان alireza akbarzadeh baghban shahid beheshti university of medical sciences, tehran-iran.دانشگاه علوم پزشکی شهید بهشتی.

سابقه و هدف: اگر چه ارتودنتیست ها مدتهاست بر این باورند که extraction دندان های پرمولر اغلب با ایجاد تغییراتی در نیمرخ بافت نرم همراه است اما تحقیقات بر این دلالت دارند که بافت نرم همواره به رترکشن بافت سخت به طور مطلوب پاسخ نمی دهد. این مطالعه با هدف تعیین رابطه بین درمان های non extraction (non-ext) و extraction (ext) دندان های پرمولر با تغییرات عمق انحنای لب ها در بیماران ارتودنتیک borderlin...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
mohammad dolatabadi zeynab raftani amiri reza esmailzadeh kenari

introduction: in recent years, much attention has been focused on agricultural wastes especially those containing phenolic compounds with natural antioxidant properties. one of these sources is the green husks of walnuts. the contents of phenolic compounds of plants are influenced under various factors including genetic factors, agricultural varieties and the species, climate and extraction pro...

Journal: :مجله دانشگاه علوم پزشکی قم 0
حمیدرضا حیدری hr heidari qom university of medical sciencesدانشگاه علوم پزشکی قم سید جمال الدین شاه طاهری sj shahtaheri tehran university of medical sciencesدانشگاه علوم پزشکی تهران محمود علیمحمدی m alimohammadi tehran university of medical sciencesدانشگاه علوم پزشکی تهران عباس رحیمی فروشانی a rahimi-froshani tehran university of medical sciencesدانشگاه علوم پزشکی تهران فریده گلبابایی f golbabaei tehran university of medical sciencesدانشگاه علوم پزشکی تهران

background and objectives: analytical methods for volatile organic compounds (vocs) in different samples need extraction of compounds, by applying hazardous solvents. solid phase micro-extraction (spme) is a solvent-free equilibrium extraction method, in which proper calibration can allow quantitative determinations of vocs at a very good sensitivity without the use of any organic solvent. vocs...

Farideh Tabatabaei Yazdi, Vahid Mosayebi

Microwave assisted extraction (MAE) tech-nique was employed for the extraction of pectin from black mulberry (Morus nigra) pomace in this research. The effects of process variables namely microwave power (300-900 watt), irradiation time (10-30 min) and liquid to solid ratio (15-30 mL/g) on the yield, degree of esterification (DE) and galacturonic acid content (GalA) of pectin were investigated ...

Farideh Tabatabaei Yazdi, Vahid Mosayebi

Microwave assisted extraction (MAE) tech-nique was employed for the extraction of pectin from black mulberry (Morus nigra) pomace in this research. The effects of process variables namely microwave power (300-900 watt), irradiation time (10-30 min) and liquid to solid ratio (15-30 mL/g) on the yield, degree of esterification (DE) and galacturonic acid content (GalA) of pectin were investigated ...

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