نتایج جستجو برای: Static condensation

تعداد نتایج: 140711  

2013
Marcus Lejon

............................................................................................................... 3 ACKNOWLEDGEMENT ............................................................................................. 4 INDEX OF FIGURES .................................................................................................. 7 1 BACKGROUND ...........................................

Journal: :Soft matter 2014
Daniel Soraruf Felix Roosen-Runge Marco Grimaldo Fabio Zanini Ralf Schweins Tilo Seydel Fajun Zhang Roland Roth Martin Oettel Frank Schreiber

The formation of protein clusters as precursors for crystallization and phase separation is of fundamental and practical interest in protein science. Using multivalent ions, the strengths of both long-range Coulomb repulsion and short-range attraction can be tuned in protein solutions, representing a well-controlled model system to study static and dynamic properties of clustering during the tr...

Journal: :Journal of colloid and interface science 2015
Patricia B Weisensee Nitin K Neelakantan Kenneth S Suslick Anthony M Jacobi William P King

HYPOTHESIS Droplet wettability and mobility play an important role in dropwise condensation heat transfer. Heat exchangers and heat pipes operate at liquid-vapor saturation. We hypothesize that the wetting behavior of liquid water on microstructures surrounded by pure water vapor differs from that for water droplets in air. EXPERIMENTS The static and dynamic contact angles and contact angle h...

2016
Qiang Sheng Jie Sun Qian Wang Wen Wang Hua Sheng Wang

Molecular dynamics simulations have been carried out to investigate the onset of surface condensation. On surfaces with different wettability, we snapshot different condensation modes (no-condensation, dropwise condensation and filmwise condensation) and quantitatively analyze their characteristics by temporal profiles of surface clusters. Two different types of formation of nanoscale droplets ...

Journal: :iranian endodontic journal 0
hengameh akhavan dental school, islamic azad university of medical science, tehran, iran. anahid ahmadi faculty of dentistry, azad university of medical sciences peyman mehrvarzfar dental school, islamic azad university of medical science, tehran, iran. anahid ahmadi birjandi private practice

introduction : the aim of this study was to examine and compare the apical sealing ability of ah26, ah plus and ah plus jet using a fluid filtration model. materials and methods : 70 single-rooted teeth were dissected from the cement-enamel junction. canals were prepared with protaper rotary system and manual k files and irrigated with 5.25% naocl and 17% edta. ten teeth were assigned as contro...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
seyed mohsen jalalzade mashhad, iran. elham khoshbin dental school, hamedan university of medical science, hamedan, iran seyed abdolkarim tabatabaei shahid beheshti university of medical science, tehran, iran. ghasem ansari dental school, shahid beheshti university of medical science, tehran, iran.

objective: the aim of this study is to measure the effect of different condensation pressure on the microleakage of mineral trioxide aggregate (mta).  methods: this study was an invitro study. a total of 55 single rooted straight-canal human extracted sound teeth free of cracks or calcification were selected. teeth were sectioned from cej region at 3 mm above the root apex. remaining specimens ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده فنی 1393

ناکاملی هندسی در ستون ها از مواردی می باشد که وجود آن در اعضای سازه ای را نمی توان نادیده گرفت، در هر عضو سازه ای ناکاملی هندسی هر چند بسیار کوچک وجود خواهد داشت از این رو بررسی تاثیرات این ناکاملی ها و همچنین پیدا کردن مقدار مجاز برای آنها در طراحی سازه های فولادی دارای اهمیت خاصی می باشد. هدف این پژوهش بررسی رفتار قاب های فولادی با ناکاملی در مختصات گرهی به میزان 3، 6 و 9 میلی متر بوده که برا...

Journal: :Computers & mathematics with applications 2021

We present in this work a unified framework for elliptic variational inequalities that gathers several problems contact mechanics like the unilateral of one or two membranes Signorini problem. study family Galerkin numerical schemes discretize framework. prove well-posedness discrete problem and we show it is equivalent to saddle-point mixed formulation containing complementarity constraints. T...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 1985

Journal: :iranian journal of pharmaceutical sciences 0
neeru malik shivalik college of pharmacy, nangal, ropar, punjab, india d.n. prasad shivalik college of pharmacy, nangal, ropar, punjab, india

a series of n-substituted-2,4-thiazolidinedione derivatives (tzds) were prepared via n-alkylation of 2,4-tzd at position 3 using substituted benzyl halides. synthesized n-substituted-2,4-tzd was then substituted at position 5 with substituted aromatic aldehyde according to knoevenagel condensation method. structures of the compounds were elucidated using various spectral techniques viz. ir, 1hn...

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