نتایج جستجو برای: filler gap

تعداد نتایج: 148474  

Journal: :Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics 1999
B P Lee J F Douglas S C Glotzer

The influence of immobile filler particles (spheres, fibers, platelets) on polymer-blend phase separation is investigated computationally using a generalization of the Cahn-Hilliard-Cook (CHC) model. Simulation shows that the selective affinity of one of the polymers for the filler surface leads to the development of concentration waves about the filler particles at an early stage of phase sepa...

1998
A. Oliphant P. Christ

The VALIDATE project has verified the performance of the DVB-T specification in the laboratory and in field trials. Its successful collaboration has advanced DVB-T technology to the point where services are ready to start. Recent achievements include a multidimensional interworking demonstration, a transmitter specification, single-frequency network synchronisation and gap-filler transmitters (...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1392

این تحقیق به منظور یافتن تاثیر دو نوع task به نام های information gap و opinion gap بر روی نوشتار زبان آموزان برون گرا بوده است. به این منظور گروهی از 110 دانش آموز دبیرستانی به پرسشنامه آیزنک پاسخ دادند که از بین آنها 91 دانش آموز برون گرا انتخاب شد. این 91 نفر قبل از شروع کار برای همگون سازی در آزمون پت شرکت کردند. در نهایت دو گروه که یک گروه شامل 32 دانش آموز با opinion gap taskو یک گروه 30 ...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم انسانی 1390

this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...

Journal: :Dental materials journal 2000
S Urapepon K Kakuta H Ogura C Suchatlampong A Rittapai

Powder-liquid type metal-resin composites, using Ag-Sn irregular particles as the filler, 4-META as coupling agent and UDMA + TEGDMA as resin matrix, were experimentally prepared under 9 different conditions (three different particle sizes and three different filler contents). The flexural strength and flexural modulus were measured. Three different irregular particle size MRCs without redox-in...

Journal: :جنگل و فرآورده های چوب 0
مقدسه اکبری دانش آموختۀ کارشناسی ارشد، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران نادیا کبودی ترابی دانش آموختۀ کارشناسی ارشد، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران حسین رسالتی استاد، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران قاسم اسدپور اتویی استادیار، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران محمدرضا دهقانی فیروزآبادی دانشیار، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

in this study, precipitated calcium carbonate (pcc) was modified using cationic starch, and its effect on optical and physical properties of paper was examined in comparison with unmodified filler afterwards. to determine the filler retention in paper, both modified and unmodified fillers were added to pulp suspensions by 20, 30, and 40 percentages. for comparing the utilization effect of modif...

Effect of different fillers on natural rubber compounds was investigated through curing, mechanical properties and morphology studies for improving mechanical performance of rubber articles. In this work, natural rubber blends with Silica as Single-filler compounds, and blends with Silica and Carbon black as Bi-filler compounds were considered. Then, natural rubber blends with Silica, Carbon bl...

Journal: :journal of research in medical sciences 0
mahmood omranifard associate professor, department of surgery, school of medicine, isfahan university of medical sciences, isfahan, iran soheila taheri dermatologist, dermatology clinic, valiye-asr hospital, boroujen, iran

normal 0 false false false en-us x-none fa background : the growing interest in filler injection requires a more comprehensive knowledge about the complications of this procedure. methods : a total of 5 cases with debilitating chronic complications following filler injection who were referred to al-zahra hospital, isfahan are presented in this report. results : the outcome of treatment for two ...

Journal: :The Astronomical Journal 2022

We describe the Gems of Galaxy Zoos (Zoo Gems) project, a gap-filler project using short windows in Hubble Space Telescope's schedule. As with previous snapshot programs, targets are taken from pool based on position; we combine objects selected by volunteers both Zoo and Radio citizen-science projects. uses exposures Advanced Camera for Surveys (ACS) to address broad range topics galaxy morpho...

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