نتایج جستجو برای: developing flow

تعداد نتایج: 814075  

Journal: :Early human development 1994
M J Noordam F M Hoekstra W C Hop J W Wladimiroff

In 14 normally developing term fetuses, the relationship between the blood flow velocity waveforms at cerebral arterial level (internal carotid artery, anterior, middle and posterior cerebral artery) and fetal behavioural states was studied using Doppler colour flow imaging. Behavioural state dependent changes in absolute flow velocities occurred in all vessels, except for the middle cerebral a...

2013
Nima Herman Shidende

Health Information System (HIS) studies in developing countries have a strong focus on upward information flow; from the lower to the higher levels. This paper contributes to HIS in developing countries debates by showing the importance of horizontal flow of information both at facility and community levels in defaulter tracing information system in maternal and child healthcare in developing c...

H Kashkuli H Mohammad Vali Samani Mehdi Habibzadeh,

The rating curve is the relationship between the water stage and the associated discharge in a givensection of a channel. In steady flow, this relationship usually has exponential type, whereas inunsteady it flow has a looped shape. Since direct developing of actual looped rating curve by usinghydrometric methods is merely possible, steady-state rating curve is commonly used as a downstreamboun...

Rutting is one of the major distresses in the flexible pavements, which is heavily influenced by the asphalt mixtures properties at high temperatures. There are several methods for the characterization of the rutting resistance of asphalt mixtures. Flow number is one of the most important parameters that can be used for the evaluation of rutting. The flow number is measured by the dynamic creep...

In this paper wave transformation in a submerged sloped breakwater and its hydraulic performance was simulated by developing a numerical model in Fortran. The code was established by combining porous flow and a two-phase model using VOF method. Modified Navier-Stokes and k-ε equations implemented to the model to simulate the flow in porous media. Cut cell method was modified to simulate...

Journal: :Biorheology 2007
Rupak K Banerjee Surendra B Devarakonda Divakar Rajamohan Lloyd H Back

The patho-physiologic process of restenosis and tissue growth may not be completely eliminated and is the primary concern of clinicians performing angioplasty and stent implantation procedures. Recent evidence suggests that the restenosis process is influenced by several factors: (1) geometry and size of vessel; (2) stent design; and (3) it's location that alter hemodynamic parameters, includin...

Journal: :international journal of civil engineering 0
shahriar afandizadeh jalil kianfar

this paper presents a hybrid approach to developing a short-term traffic flow prediction model. in thisapproach a primary model is synthesized based on neural networks and then the model structure is optimized throughgenetic algorithm. the proposed approach is applied to a rural highway, ghazvin-rasht road in iran. the obtainedresults are acceptable and indicate that the proposed approach can i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده کشاورزی 1390

احداث سرریز و سدهای انحرافی در محدوده پیچ رودخانه ها در بعضی شرایط اجتناب ناپذیر است. فرسایش و رسوبگذاری و کارکرد نامتعادل دریچه های آبگیر در طرفین رودخانه، مشکلاتی را در مراحل بهره برداری پدید می آورد. یکی از فرضیه ها جهت برقراری توزیع یکنواخت تر جریان در عرض پیچ رودخانه، تساوی دبی جریان در واحد عرض، از طریق تغییر پروفیل تاج سرریز از حالت افقی به حالت شیب دار است. هدف اصلی تحقیق حاضر شبیه سازی...

ژورنال: مدیریت سلامت 2020

Introduction: Hospital administrators have always faced the challenge of providing the best possible health services in a resource-limited environment. The patient flow throughout the hospital is affected by lack of the capacities that can lead to bed-blocking among the hospital units. In this research, the patient flow in the hospital is modeled as an open queueing network with blocking. Then,...

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