نتایج جستجو برای: overstrength factor

تعداد نتایج: 844144  

Journal: :Engineering Structures 2021

Cross-laminated timber (CLT) is increasingly being used in lateral load resisting systems of multi-storey buildings. Conventional in-plane CLT shear walls can be transformed into core-wall structures with enhanced strength and stiffness when the individual are connected orthogonally. In this paper, experimental studies presented on orthogonal joints self-tapping screws (STS) installed mixed ang...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده کشاورزی 1388

چکیده فرسایش خاک یکی از مهمترین مسائل اقتصادی، اجتماعی و زیست محیطی جهان است. فرسایش خاک از شاخص های اصلی در ارزیابی سلامت اکوسیستم می باشد. طبق اطلاعات موجود، آسیا بیش از سایر قاره ها مشکل فرسایش دارد و در این میان ایران دارای فرسایش خاک بالایی است. در کشور ما به دلیل عدم وجود تعداد کافی ایستگاه های اندازه گیری و همچنین ناقص بودن آمار طولانی مدت آنها، برای تخمین فرسایش خاک مدل سازی هیدرولوژیک...

Journal: :medical journal of islamic republic of iran 0
s nasiri from the department of research and development, blood research and fractionation co., tehran, and the *department of virology, tarbiat modarres university, tehran, i.r. iran. h rezvan k mousavi mh roostaei

in this study, anion-exchange chromatography was used to purify factor vii and factor ix from prothrombin complex (ppsb), which contains coagulation factors ii, vii, ix and x. for this purpose, deae-sepharose cl-6b gel , pharmacia column xk-26 , high flow rate and two stepwise gradients with phosphate citrate buffer were used. the yield of the two lyophylized products, factor vii and factor ix ...

The design of earthquake-resistant buildings starts with defining the maximum lateral earthquake forces or their resultant. The amount of these forces depends on various factors, including coefficient of system behavior which depends on overstrength and its ductility. In this study, a method is presented for designing an earthquake-resistant system in which the distribution of lateral forces is...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهرکرد - دانشکده دامپزشکی 1391

چکیده با وجود اینکه توجه قابل ملاحظه ای بر اهمیت جنبه های تکنیکی جراحی ترمیم عصب می شود، به نظر می رسد که فاکتورهای رشد از جمله فاکتور رشد عصبی (nerve growth factor (ngf)) فاکتور نروتروفیک مشتق از مغز ((brain-derived neurotrophic factor (bdnf) و نوروتروفین 3 (neurotrophin3 (nt3)) میزان تولید سلول های عصبی را تحت تأثیر قرار می دهند. هدف از مطالعه ی حاضر بررسی این موضوع است که آیا عصاره ی خام مغ...

Journal: :Buildings 2022

The rapid growth of using the short links in steel buildings due to their high shear strength and rotational capacity attracts attention structural engineers investigate performance links. However, insignificant has been oriented efficiently developing a comprehensive model forecast links, which is expected enhance structures’ constructability. As machine learning algorithms was successfully us...

Journal: :journal of research in medical sciences 0
mohammad saadatnia mansour salehi ahmad movahedian sz samsam shariat mehri salari marzieh tajmirriahi

background: factor v g1691a (fv leiden), fii ga20210, and methylenetetrahydrofolate reductase (mthfr) c677t mutations are the most common genetic risk factors for thromboembolism in the western countries. however, there is rare data in iran about cerebral venous and sinus thrombosis (cvst) patients. the aim of this study was to evaluate the frequency of common genetic thrombophilic factors in c...

Journal: :acta medica iranica 0
fereydoun ala irandokht shoa'i

0

Journal: :medical journal of islamic republic of iran 0
kamran mousavi hosseini blood transfusion research center, high institute for research and education in transfusion medicine, tehran, iran.سازمان اصلی تایید شده: سازمان انتقال خون ایران (blood transfusion research center)سازمان های دیگر: blood transfusion research center, saleh nasiri blood transfusion research center, high institute for research and education in transfusion medicine, tehran, iran.سازمان اصلی تایید شده: سازمان انتقال خون ایران (blood transfusion research center)سازمان های دیگر: blood transfusion research center,

background: factor vii concentrates are used in patients with congenital or acquired factor vii deficiency or treatment of hemophilia patients with inhibitors. in this research, immunoaffinity chromatography was used to purify factor vii from prothrombin complex (prothrombin-proconvertin-stuart factor-antihemophilic factor b or ppsb) which contains coagulation factors ii, vii, ix and x. the aim...

Journal: :iranian journal of allergy, asthma and immunology 0
hassan mansouri torghabeh aliakbar pourfathollah mahmood mahmoodian shooshtari zahra rezaie yazdi

many investigations have proved relations between abo blood groups with some diseases and factor viii and von willebrand level in plasma. in this study we investigated a relation between abo blood groups and factor viii and ix inhibitors in 102 patients with haemophilia a and 48 patients with haemophilia b. the assay of inhibitor was done by bethesda method. there were no relation between abo b...

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