نتایج جستجو برای: current sample

تعداد نتایج: 1148585  

Journal: :international journal of high risk behaviors and addiction 0
leila farhadmollashahi department of oral medicine, faculty of dentistry, zahedan university of medical sciences, zahedan, ir iran; department of oral medicine, faculty of dentistry, zahedan university of medical sciences, zahedan, ir iran. tell: +98-9151430868, fax: +98-5412414003 meisam noroozifar department of chemistry, faculty of sciences, university of sistan and baluchestan, zahedan, ir iran arezoo afroughe department of chemistry, faculty of sciences, university of shahrood, shahrood, ir iran elahe sadat hashemi department of pediatric, faculty of dentistry, zahedan university of medical sciences, zahedan, ir iran marieh honarmand department of oral medicine, faculty of dentistry, zahedan university of medical sciences, zahedan, ir iran

results based on the results obtained by the applied technique, the presence of carcinogenic compounds, n-nitrosomethyl-vinylamine (162 µg/g), n-nitrosonornicotine (6.3 µg/g), and acetaldehyde (117 µg/g) was confirmed in the sample. objectives the current study aimed to chemically analyze, separate and measure the existing substances in a type of chewing tobacco. materials and methods in the cu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده کشاورزی 1391

سیلاب ورودی به مخزن سد حاوی مواد معلق زیاد بوده که اصطلاحاً جریان چگال (density current) نامیده می شود. این جریان در واقع جریان یک سیال درون سیال دیگر است که بوسیله اختلاف چگالی مابین آنها ایجاد می گردد. اختلاف در چگالی که باعث ایجاد نیروی رانش می گردد ممکن است ناشی از اختلاف درجه حرارت، وجود ذرات معلق جامد ویا مواد محلول باشد. در این تحقیق با توجه به آزمایشات سه بعدی انجام شده، گسترش عرضی جریان...

Journal: : 2022

Bu çalışma 2000-2021 yılları arasında sınıf öğretmenlerinin yaşadıkları sorunları tematik analiz yöntemiyle belirlemek ve belirlenen yıl aralıklarında trend olan konuları tespit etmek amacıyla yapılmıştır. yöntem, bir konu hakkında yapılan çalışmaların betimsel içeriksel olarak incelenerek, eğilimlerini sonuçlarının edilmesi esasına dayanır. amaçla Türkiye’de sorunlar ile ilgili çalışmalar alan...

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  (YGdSm)123 sample with nominal composition (Y0.33 Gd0.33 Sm0.33 )Ba 2 Cu 3 O X ,also YGdEu1 and YGdEu2 samples with nominal composition (Y0.33 Gd0.33 Eu0.33 )Ba2 Cu3 OX were prepared at different oxygenation conditions. All the samples were analysed by ac susceptibility , resistivity , critical current density (Jc), SEM,XRD and EDX. The critical current density measurements show that the Jc i...

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