نتایج جستجو برای: d3 die steel
تعداد نتایج: 221263 فیلتر نتایج به سال:
run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...
BACKGROUND Cytochrome P450scc metabolizes vitamin D3 to 20-hydroxyvitamin D3 (20(OH)D3) and 20,23(OH)(2)D3, as well as 1-hydroxyvitamin D3 to 1alpha,20-dihydroxyvitamin D3 (1,20(OH)(2)D3). It also cleaves the side chain of 7-dehydrocholesterol producing 7-dehydropregnenolone (7DHP), which can be transformed to 20(OH)7DHP. UVB induces transformation of the steroidal 5,7-dienes to pregnacalcifero...
Background & Objective: The relationship between vitamin D3 and risk factors of metabolic syndrome is unclear. This study aimed to investigate the vitamin D3 kevel of women and its relation with metabolic syndrome risk factors. Materials & methods: A cross-sectional study conducted between 200 healthy women aged 20 to 50 in two groups of normal BMI (BMI=18.5-24.9 kg/m2) and overweight/obe...
Nach einer Einleitung und Diskussion tiber die Eingenschaften der diabetischen Krankheiten wurde ausflihrlich trber die Aetiologie und Pathophysiologie der Zuckerankheiten,insbesondere der Altersdiabetis,gesprochen.Nach der symptomalogie der Diabetis haben wir die ncueste Einteilung der Zuckerkrankheiten genannt und die Untcrsuchungsmethoden,die heute Uhlich sind,erwahnt;dazu wurden unsere M...
zum Vortrag von Dr. Arndt Bohrer [email protected] Entwicklung eines internetgestützten Expertensystems zur Prüfung des Anwendungsbereichs urheberrechtlicher Abkommen In dem Vortrag soll ein juristisches Expertensystem vorgestellt und dessen Entwicklung beschrieben werden. Es handelt sich um ein Expertensystem zur Prüfung des Anwendungsbereichs der urheberrechtlichen Abkommen RBÜ, RA, TRIPS, ...
Motivated by the recent work [1] one of present authors, we here report that there exist two new systems, namely, D3/(F, D1) and D3/(D3, (F, D1)), either which can give rise to a much larger sizable open string pair production rate at condition relaxed. Here D3 is taken as our own (1 + 3)-dimensional world while non-threshold bound state or (D3, D1)) placed parallel nearby in directions transve...
مقدمه: ام اس (ms) بیماری دمیلینه کننده التهابی مزمن سیستم عصبی است که با واسطه فعال شدن سیستم ایمنی پدید می آید. امروزه آنتی اکسیدانهایی همچون ویتامین های eو d3 در بیماریهای تحلیل برنده سیستم عصبی مورد استفاده قرار می گیرند، هرچند که مکانیسم عمل دقیق آنها به خوبی مشخص نیست. در این مطالعه اثر تجویز ویتامین های eو d3 بر میزان دمیلیناسیون و مرگ سلولی، تکثیر، تمایز و مهاجرت سلول های بنیادی عصبی و ر...
The former " Steel Cities " of Sheffield, UK and Pittsburgh, USA have struggled to grow and attract a modern, knowledge-based economy. From the 1970s to early 1980s, their traditional manufacturing economies began to breakdown, rendering the economic logic of their industrial structures obsolete. The comparative advantage of OECD cities shifted from physical manufacturing to the packaging and g...
It has been shown that mammalian cytochrome P450scc can metabolize vitamin D3 to 20-hydroxyvitamin D3 (20(OH)D3) and 20,22(OH)2D3. To define the biological significance of this pathway, we tested the effects of 20(OH)D3 on the differentiation program of keratinocytes and on the expression of enzymes engaged in vitamin D3 metabolism. Immortalized HaCaT and adult human epidermal keratinocytes wer...
The design of extrusion dies depends on the experience of the designer. After the die has been manufactured, it is tested during an extrusion process and machined several times until it works properly. The die is designed by a trial and error method which is expensive interms of time consumption and the amount of scrap. Research is going on to replace the trial pressing with finite element simu...
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