نتایج جستجو برای: transport number

تعداد نتایج: 1418316  

Journal: :International journal of membrane science and technology 2023

In this research work, the transport properties of calcium ions (Ca2+) in a heterogeneous cation exchange membrane (IEM) MK-40 Schekinoazot. Aqueous solutions sodium chloride (NaCl) and (CaCl2) 0.01 M 0.02 concentration, respectively, were used. The limit current density numbers evaluated by means chronopotentiometry technique, applying electric pulses, obtaining potential differences, from whi...

Journal: :Journal of Mathematical Analysis and Applications 2009

The analysis of Anisotropy of Magnetic Susceptibility (AMS) is a powerful and rapid technique to examine the preferred orientations of mineral (magnetic) fabrics and can indicate the nature of a magma transport (vertical or lateral). The relationship between magnetic fabric and geometry of a dyke swarm enables us to understand magma emplacement processes. Depending on the mutual relationship of...

Journal: :Nucleation and Atmospheric Aerosols 2021

In this work, the author considered task of studying course-keeping ability multi-part road trains, determining its main criteria and parameters. Course stability is car to keep necessary course vehicle movement at a specified angle rotation wheels. The relevance problem that for heavy transport aggregates, oscillatory may be associated with unacceptable lateral displacements after start excita...

Journal: :مهندسی عمران فردوسی 0
خسرو حسینی حامد نوخاسته حجت کرمی سید امین سلامتیان

investigation on local scour phenomenon downstream of impinging jets is very complicated. different parameters such as geometry of stream, characteristics of flow and sediments have great influences on the scour phenomenon. the present study is preceded to numerical modeling of scouring by impinging jet via ssiim 2 model founded on a physical model tests. the numerical model is calibrated for r...

ژورنال: اقتصاد مالی 2013
آزاده محرابیان

بخش حمل‌ونقل در اقتصاد هر کشور  اهمیت خاص خود را دارد که با گستردگی فعالیت‌های اقتصادی و افزایش تولید ملی نیاز به توسعه و بهبود شبکه‌های حمل‌ونقل به‌خوبی احساس می‌شود. بر این اساس هدف از این مطالعه بررسی عوامل موثر بر جابجایی مسافر در ایران و پیش‌بینی تعداد مسافر جابه‌جا شده توسط حمل‌ونقل ریلی است. این کار تحقیقی برگرقته از مطالعه چن در سال 2007 میلادی است. متغیرهای مورد استفاده در این تحقیق، ت...

Journal: :international journal of endocrinology and metabolism 0
evren gundogdu department of biopharmaceutics and pharmacokinetics, faculty of pharmacy, ege university, izmir, turkey; department of biopharmaceutics and pharmacokinetics, faculty of pharmacy, ege university, izmir, turkey. tel.: +90-2323884000, fax: +90-2323885258 aysu yurdasiper department of pharmaceutical technology, faculty of pharmacy, ege university, izmir, turkey

context: over the last few decades, extensive efforts have been made worldwide to develop nanomedicine delivery systems, especially via oral route for antidiabetic drugs. absorption of insulin is hindered by epithelial cells of gastrointestinal tract, acidic gastric ph and digestive enzymes. evidence acquisition: recent reports have identified and explained the beneficial role of several struct...

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