نتایج جستجو برای: non sedimentation conditions

تعداد نتایج: 2076206  

Journal: :Applied Biosciences 2023

Microalgae are a source of carbohydrates, proteins and lipids. Thus, they can be considered as raw material to transition from current fossil fuel-based refineries biorefineries. harvesting is major challenge in biomass production. There several techniques, but the majority them either expensive or not effective. The method that we propose sedimentation-induced by light blockage, taking advanta...

Journal: :نشریه مهندسی عمران و نقشه برداری 0
امیدرضا صفی یاری دانشگاه تهران محمدعلی بنی هاشمی دانشگاه تهران

in this research, using an expansive channel in plan and along the longitudinal profile, deltaic reservoir sedimentation was studied. sedimentation in bed load governed conditions and delta formation in reservoir environment is a function of various parameters such as: geometrical shape of reservoir, bottom slope, hydrological properties and hydraulic conditions of inflowing stream, sediment lo...

Journal: :Applied Mathematics and Computation 2011
Bong Jae Chung Ashwin Vaidya

In this paper, we explain some well known experimental observations in fluid solid interaction from a thermodynamic perspective. In particular we use the extremum of the rate of entropy production to establish the stability of specific patterns observed in single and multiparticle sedimentation in an infinite fluid and the sedimentation of spheres in the presence of walls. While these phenomena...

Mohammad Reza Borna Mohammad Reza Pirestani,

Pre-sedimentation basins are among the most important elements of the conventional water treatment process. In pre-sedimentation basins, due to different velocity gradients, secondary and rotational flows are formed that will create short paths and increase dead and still flow zones as well as changes in the flow mixing. This will prevent laminar flow conditions for sedimentation and will reduc...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2001
G Rivas J A Fernández A P Minton

Recent measurements of sedimentation equilibrium and sedimentation velocity have shown that the bacterial cell division protein FtsZ self-associates to form indefinitely long rod-like linear aggregates in the presence of GDP and Mg(2+). In the present study, the newly developed technique of non-ideal tracer sedimentation equilibrium was used to measure the effect of high concentrations-up to 15...

ژورنال: علوم آب و خاک 2007
محمود شفاعی بجستان, , حسین صمدی بروجنی, , منوچهر فتحی مقدم, ,

Sedimentation and consolidation of cohesive sediments near the dam body can cause many problems such as clogging the bottom outlets and entering the sediments into the hydropower intakes. Flushing of these sediments through the bottom outlet will be successful only if the hydraulic conditions are designed according to the physical and mechanical properties of consolidated sediments. During the ...

Journal: :Collection of Scientific Works of the Institute of Geological Sciences of the NAS of Ukraine 2008

محمود شفاعی بجستان, , حسین صمدی بروجنی, , منوچهر فتحی مقدم, ,

Sedimentation and consolidation of cohesive sediments near the dam body can cause many problems such as clogging the bottom outlets and entering the sediments into the hydropower intakes. Flushing of these sediments through the bottom outlet will be successful only if the hydraulic conditions are designed according to the physical and mechanical properties of consolidated sediments. During the ...

One of the problems of controlling erosion and sedimentation in catchment areas is the lack of statistical data to accurately estimate the amount of sedimentation and erosion. In order to implement soil protection programs and determine methods to reduce sedimentation, it is necessary to estimate the total volume of annual sediment production. The purpose of this study is to estimate the erosio...

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