نتایج جستجو برای: flow 3d

تعداد نتایج: 659636  

2002
Helmut Doleisch Helwig Hauser

We present the usage of a non-discrete degree of interest (DOI) function, obtained by brushing multi-valued 3D simulation data in information visualization views, to define opacity, color, and geometrical transfer functions for 3D rendering in a scientific visualization view via linking. To reflect the smooth nature of features in flow simulation data, smooth brushing was chosen. Different avai...

رودخانه‏ها شریان‏های اصلی حیات کلیه سازه‏های آبی محسوب می‏شوند ،رودخانه‏ها به لحاظ اهمیتی که این منابع طبیعی در برآورد نیازهای بشری دارد  از دیرباز تاکنون مورد توجه بوده است به همین خاطر جهت انحراف جریان از ساحل فرسایش پذیر رودخانه و حفاظت دیواره خارجی رودخانه ها از سازه هایی مختلف، بایستی استفاده نمود در این تحقیق با مطالعه عددی بر روی سری آبشکن های مستقیم در شرایط آب زلال با نفوذپذیر 0، 35 و ...

2007
Jae Kyu Suhr Kwanghyuk Bae Jaihie Kim Ho Gi Jung

An automatic parking system provides convenience for drivers by automatically finding free parking spaces and steering automobiles toward them. This paper proposes a vision-based free parking space detection system. The proposed method consists of two stages. First, the automobile rearview is three-dimensionally reconstructed using the optical flow-based method. The metric information is recove...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Gregory N Bancroft Vassilios I Sikavitsas Juliette van den Dolder Tiffany L Sheffield Catherine G Ambrose John A Jansen Antonios G Mikos

Bone is a complex highly structured mechanically active 3D tissue composed of cellular and matrix elements. The true biological environment of a bone cell is thus derived from a dynamic interaction between responsively active cells experiencing mechanical forces and a continuously changing 3D matrix architecture. To investigate this phenomenon in vitro, marrow stromal osteoblasts were cultured ...

امروزه اهمیت مدیریت مخازن سدها استفاده از دریچه ها بر روی سرریزها را ضروری میکند. این موضوع سبب تغییر هیدرولیک جریان بر روی سرریز می‌شود و هدف از این تحقیق بررسی برخی از این تغییرات هیدرولیکی است. در این تحقیق به کمک نرم‌افزار Flow-3D به مدلسازی جریان از روی سرریز شوت با آستانه اوجی شکل و پرتاب‌کننده‌جامی و با استفاده از روش حجم سیال VOFو مدل تلاطمی RNG پرداخته شده است. بررسی تاثیر 4 بازشدگی 15...

B. Ghasemi M. Nasiri

This paper modeled heating air of a room through examining free convection in a 3D chamber. The chamber had cold and hot sources with Tc and Th temperatures, respectively. Its other walls were adiabatic. This study aimed at predicting effect of temperature difference, displacement of hot and cold sources and their aspect ratio on flow field, temperature and heat transfer rate. To conduct the st...

Journal: :modares journal of medical sciences: pathobiology 2010
nader vazifeh shiran masoud soleimani yousef mortazavi saeed kaviani hassan aboulghasemi

objective: allogeneic transplantation with umbilical cord blood (ucb) in adult recipients is limited mainly by a low cd34+ cell dose. to overcome this shortcoming, human placenta as a novel source of human mesenchymal progenitor cell (mpc)- unrestricted somatic stem cells (ussc)- was incorporated in an attempt to expand cd34+ cells from ucb. to provide a similar environment in vitro, we coated ...

Journal: :journal of medical signals and sensors 0
zahra vahabi rasool amirfattahi

aorta is formed in a dynamic environment which gives rise to imbalances between many forces that tend to extend the diameter and length. furthermore, internal forces tend to resist this extension. impedance tomography can show this imbalance to stimulate the stenosis of aortic valve, growth of the elastic, collagen and to effectively reduce the stresses in the underlying tissue. in blood flow, ...

2000
T. Smy S. K. Dew

This paper deals with the determination of film, via and contact structure resistances in VLSI metalization. Simulations of the flow of electrical current through thin metal films and VLSI structures using the three dimensional microstructural thin film simulation framework 3D-Films are discussed in this paper. For each simulation, the film structures are generated by the thin film growth model...

2005
Peter Biber Sven Fleck Wolfgang Strasser

Imagine a 3D Television system where the user can freely choose his point of view in real-time during watching three-dimensional movies or documentaries. Clearly, one key component to 3D movie making will be the 3D model acquisition process for background models where the actors can be put to life in 3D. In this paper we present a new mobile 3D model acquisition platform to reach this dream. Th...

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