نتایج جستجو برای: hydraulic structures

تعداد نتایج: 482131  

Michele Palermo Stefano Pagliara

Block ramps are hydraulic structures which are commonly used in river restoration projects. Especially in the last few decades, the use of this type of structures have become more and more popular. They furnish a correct balance between the hydraulic functioning and the environmental care, as they minimize the impact on the environment in which they are located. In addition, they can be conside...

Journal: :مهندسی عمران فردوسی 0
حامد زاهدی خامنه سعیدرضا خداشناس محمدرضا اکبرزاده کاظم اسماعیلی

one of the most important discharge control ways in hydraulic structures is side weir which is used in irrigation, water distribution, waste-water engineering, drainage, flood control and other water related projects.in order to increases cm value and control on water surface when there is restriction in the weir length(l), side weir with different geometry is used. in present research seventhl...

2016
Shang Zhendong

In the literature, studies on dexterous manipulators are mainly focused on multi-finger multi-joint structures. These manipulators often have difficulties with grasping heavy objects due to the delicateness and complexity of the structures. This paper describes the authors’ attempt on implementing dexterous grasping on a traditional two-single-jointfinger hydraulic manipulator. Hydraulic driven...

ژورنال: علوم آب و خاک 2019

Stilling basins have been used as an energy dissipater downstream of hydraulic structures. Dimensions of the stilling basins depends on hydraulic jump characteristics. In this research diverging hydraulic jump with an adverse slope using baffle blocks and an end sill have been studied experimentally and effect of diverging angle of the walls, adverse bed slope and baffle blocks on the hydraulic...

Journal: :تحقیقات آب و خاک ایران 0
حجت احمدی استادیار گروه آب دانشگاه ارومیه حسین رضایی دانشیار گروه آب دانشگاه ارومیه کامران زینالزاده استادیار گروه آب دانشگاه ارومیه

seepage analysis through earth dams is employed to determine the water loss. moreover, as the magnitude of pore pressure in dam body is calculated using seepage analysis, this analysis plays an important role on the stability analysis in these types of structures. as the hydraulic conductivity of the earth dam materials, is considered as one of the effective parameters on the magnitude of seepa...

2015
B Tóth M Weynants A Nemes A Makó G Bilas G Tóth

A range of continental-scale soil datasets exists in Europe with different spatial representation and based on different principles. We developed comprehensive pedotransfer functions (PTFs) for applications principally on spatial datasets with continental coverage. The PTF development included the prediction of soil water retention at various matric potentials and prediction of parameters to ch...

Journal: :نشریه دانشکده فنی 0
علی رضا سلطانکوهی خسرو برگی

breakwaters are the important and the costly ones of the marine structures. composite breakwater is one of the common types in the world. because of the sensitivity of composite breakwaters to environmental conditions, also construction costs, difficulty of repair and maintenance and importance of equipments on and behind the breakwater, design of composite breakwater must be very accurate. goa...

Journal: :iranian journal of ichthyology 0
soheil eagderi department of fisheries, faculty of natural resources, university of tehran, karaj, iran. dominique adriaens evolutionary morphology of vertebrates laboratory, department of biology, ghent university, k.l. ledeganckstraat 35, 9000 ghent, belgium

the head bones and relevant muscles are important elements composing the feeding and respiration apparatus and can be considered as highly important structures for giving rise to evolutionary specializations. the eels of the anguilloidei is a diverse group and structural diversity in their cranial musculoskeletal system is thus to be expected. ariosoma gilberti is a member of bathymyrinae (cong...

Journal: :iranian journal of science and technology transactions of civil engineering 2015
l. abrari n. talebbeydokhti s. sahraei

throughout history dams have been important structures in water storage. to avoid overtopping, damage, and or failure of a dam, adequate spillway is needed to release excess water from upstream floods. researchers found that spillways have to be made nonlinear in order to reach an economic structure with high performance. a piano key weir is one of the best solutions. piano key weirs are the mo...

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