Results 21 to 30 of about 5,669,933 (295)

Mechanical Behavior and Permeability of Simulated Rock with Single Fracture under Brittle and Ductile Conditions

Journal of MMIJ, 2019
Gypsum aggregate specimens have been used in the present study, because brittle, semi-brittle and ductile stress-strain behaviors of the specimen can be controlled only with confining stress level at the room temperature.
Sho TAKEYAMA, Kiyotoshi SAKAGUCHI, Noriaki WATANABE, Noriyoshi TSUCHIYA   +3 more
doaj   +1 more source

Numerical study of hydraulic characteristics of self-diffluence structure in second diversion port of high-head lock

Shuili Shuiyun Gongcheng Xuebao, 2017
The water flow energy of high-head lock is huge, and the hydraulic indexes are quite high, which puts forward higher requirements for the layout and type selection of the filling and emptying system.The maximum design head of Datengxia single-step lock ...
ZHU Long, LI Jun, XUAN Guoxiang, YAN Xiujun, HUANG Yue   +4 more
doaj   +1 more source

Hydraulic Characteristics of Axial Flow Pump Device With Different Guide Vane Inlet Angles

Frontiers in Energy Research, 2022
To improve the efficiency of low-head pump device in the large-discharge and low-head domain, the hydraulic characteristics of vertical axial flow pump devices with different guide vane inlet angles were studied using computational fluid dynamics (CFD ...
Lei Xu, Hucheng Zhang, Chuan Wang, Chuan Wang, Dongtao Ji, Wei Shi, Weigang Lu, Linguang Lu   +7 more
doaj   +1 more source

A note on Chow's description of the weak hydraulic jump [PDF]

, 2008
Standard analytical and empirical results of hydraulic jumps are reanalyzed. The assumption that momentum but not energy is conserved across a jump is abandoned.
Sander, Graham, Rose, CW, Parlange, Jean-Yves, Walter, Michael Todd, Rose, Calvin, Walter, Michael Faivre, Hogarth, William   +6 more
core   +1 more source

Describing the soil physical characteristics of soil samples with cubical splines [PDF]

, 2008
The Mualem-Van Genuchten equations have become very popular in recent decades. Problems were encountered fitting the equations¿ parameters through sets of data measured in the laboratory: parameters were found which yielded results that were not ...
Ritsema, C.J., Oostindie, K., Dekker, K., Wesseling, J.G., Stolte, J.   +4 more
core   +1 more source

Recent advances in hydraulic characteristics and optimization of irrigation valves: A review

Guan'gai paishui xuebao
With the rapid growth of the global population and increasing pressures on freshwater resources, water scarcity has become one of the most pressing challenges worldwide.
HONG Ming, YANG Xiaoyu, YANG Wenxin, LI Hang, WANG Jiale, NIAN Gengchen   +5 more
doaj   +1 more source

Fieldwork Hydraulic Engineering near Varna, Bulgaria, 2017

, 2018
Data collected by students for the MSC-course Fieldwork Hydraulic Engineering at TU Delft. The survey aims at the engineering and spatial design for the improvement of the St. Elias Marina and recreational area of the coastal resort of St.
Hydraulic Engineering Department of TU Delft
core   +1 more source

Anatomical characteristics of Gigantochloa scortechinii bamboo rhizome in relation with hydraulic conductance [PDF]

, 2019
Structural development and modification of bamboo culm’s anatomical characteristics occur during the maturation period. This process affects the conductivity efficiency in individual bamboo culms (above ground).
Abdul Hamid, Hazandy, Nik Abdul Majid, Nik Muhamad, Mohamed, Johar, Nuruddin, Ahmad Ainuddin   +3 more
core   +1 more source

Research and Development of Rotary Sprinkler Hydraulic Characteristics of the External Flow Field

MATEC Web of Conferences, 2015
Sprinkler key equipment is the irrigation system in sprinkler hydraulic characteristics of the external flow field. It is also an important indicator in performance evaluation of the sprinkler.
Liu Junping, Bao Ya, Liu Xingfa, Tian Kun, Zhang Qian   +4 more
doaj   +1 more source

Designing redundant metering valves for hydraulic actuators under mixability and low cost-constraints [PDF]

, 2010
This article deals with the design of redundant metering valves for mechanically signalled hydraulic actuators. The final aim of the work is to manufacture a new low-cost valve in replacement of the existing expensive valve with an additional leakage ...
Budinger, V., Marger, Thibaut, Pommier-Budinger, Valérie, Marger, T., Thibaut Marger, Malburet, F., Francois Malburet, Valerie Budinger, Malburet, François, Maré, Jean-Charles, Jean Charles Mare   +10 more
core   +1 more source