نتایج جستجو برای: medium and large diameters
تعداد نتایج: 16938914 فیلتر نتایج به سال:
having sufficient and accurate understanding about kinetics of phenomena, could be an important reason for further technological progresses. finding a white-box mathematical model for weight vs. time curves of electrophoretic deposition (epd) using large and small signal analysis has been studied thoroughly in the present investigation. weight-time curves of nano-mullite suspension have been tr...
We show that for integers k ≥ 2 and n ≥ 3, the diameter of the Cayley graph of SLn(Z/kZ) associated to a standard two-element generating set, is at most a constant times n 2 ln k. This answers a question of A. Lubotzky concerning SLn(Fp) and is unexpected because these Cayley graphs do not form an expander family. Our proof amounts to a quick algorithm for finding short words representing eleme...
Cantilever magnetometry experiments were performed on arrays of Bi nanowires of various diameters both on the semimetal and semiconductor side of the semimetal-tosemiconductor transition (SMSC) that is predicted to occur for diameters of approximately 50 nm. Our 270 nm nanowire samples, which are on the semimetal side of the SMSC transition, exhibit strong dHvA oscillations that can be interpre...
امروزه بحث پیرامون مفاهیم مختلف مرتبط با مکان و چگونگی تجربه آن توسط استفادهکنندگان، از مباحث مهم مطرح در معماری و شهرسازی به ویژه در حوزه علوم رفتاری است. در این راستا یکی از مهمترین مفاهیم مرتبط با حوزه مذکور به ویژه در مباحث روانشناسی محیط، مفهوم معنای مکان است. با شناخت معانی مختلف مکان و روند شکلگیری آن و نیز پارامترهای تأثیرگذار بر ادراک آن توسط افراد، میتوان به خلق محیطی مطلوب دست ی...
results in group 1, the mean largest and cumulative stone diameters, respectively, were 18.7 ± 5.7 mm and 45.0 ± 12.0 mm. in group 2, the mean volume was 6,288.4 ± 2,733.0 mm3. the overall sf was 96.4% (100% for group 1 and 75% for group 2). the mean number of sessions of eswl and urs, respectively, was 1.4 ± 0.7 and 0.8 ± 0.9 in group 1 and 4.0 ± 2.0 and 1.5 ± 1.3 in group 2. the mean times to...
Contemporary nanostructured transparent electrodes for use in solar cells require high transmittance and high conductivity, dictating nanostructures with high aspect ratios. Optical haze is an equally important yet unstudied parameter in transparent electrodes for solar cells that is also determined by the geometry of the nanostructures that compose the electrode. In this work, the effect of th...
Background and purpose: The antimicrobial effect of phenytoin on ulcers has been addressed in few studies. The aim of this study was to determine the antimicrobial effect of phenytoin on common contaminating microorganisms of oral cavity ulcers in vitro. Materials and methods: Three standard microbial species including Staphylococcus aureus, Actinomyces naeslundii, and Candida albicans were pr...
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