نتایج جستجو برای: hydraulic structure

تعداد نتایج: 1593825  

2009
Zhao Lijun Yang Junguo Jiang Jihai

Based on the analysis of the structure and the power transmission system of aircraft towing tractor, a new project applying hydraulic drive hybrid power is put forward considering the requirements of towing aircraft and working process without towbar. As the testing and controlling signals of the system are multi channel and distributed, the testing program is designed via LXI bus. The experime...

2005
Hubert Chanson

Forensic studies of past hydraulic structure failures are rare despite their critical relevance to modern hydraulic design, and the writers (Dai et al., 2005) must be congratulated for their outstanding study. Herein the discussion is focused on two aspects of the conclusion. It is believed that dam overtopping was the primary cause of the Dadu river landslide dam failure, although aftershocks ...

2000
R. Burrows Q. Qiu

sures experienced by a pipeline can be either beneficial or detrimental from an operational performance perspective, depending on the amount, the two phase regime of the mixture (whether homogeneous or slug) and the nature and cause of the transient. It is generally held that when free (undissolved) air, or gas, is present in a hydraulic system, it can greatly reduce the surge pressure levels b...

2011

A mathematical physical model for dynamic simulation of flow and temperature in district heating networks (DHN) is proposed. The network structure is described by means of a graph-theoretical approach where the network elements are pipe sections, consumers and heat sources. The governing equations for hydraulic flows and heat distribution through pipe networks are presented. In addition, proper...

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: :journal of water sciences research 2013
stefano pagliara michele palermo

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: :International Journal For Multidisciplinary Research 2023

This paper is bases on the design and manufacturing of sowing machine based hydraulic principle named as ‘Hydraulic Seed Sowing Machine’. The very efficient in working will be able to easily sow seeds like (bajra, rice, Val, gram, groundnut, pea, maize, etc.). following conditions such – It operates a permanent raised bed 100 cm width which can with fertilizer 5 rows at 25 approximately apart. ...

Journal: مهندسی دریا 2006
Peyman Aghtouman, Vahid Chegini,

This paper presents the results of hydraulic model tests on the stability of rubble mound breakwaters with armour layers of antifer cubes. The tests were performed using irregular waves. The effect of wave parameters and the structure slope on the stability of these artificial armour units has been investigated and the stability formulae have been derived. Finally a comparison between these for...

Journal: :Journal of the Soil Mechanics and Foundations Division 1965

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