Results 11 to 20 of about 137,465 (171)

The Response Property of Inverted Siphon in Long Distance Water Distribution System

open access: yesMATEC Web of Conferences, 2018
In order to design controllers for canals with inverted siphon especially for very long siphon, it is necessary to learn its response property. Compared to open canals, the water movement in inverted siphon is very different due to the fast travelling ...
Mao Zhonghao   +3 more
doaj   +2 more sources

Hydraulic engineering of inverted siphons in Roman age: a review

open access: yesWater Supply, 2010
In this work the authors wish to present a technology, less known if compared with the Roman age arcaded bridges used to cross broad and deep valleys: the inverted siphons. These structures are very complex hydraulic systems: for their good functioning, in fact, not only adequate constructing tricks were necessary, but also good theoretical knowledge ...
F. De Novellis, G. Temporelli
openaire   +2 more sources

Advanced Strategies of Salt Blocking in the Hypersaline Water. [PDF]

open access: yesGlob Chall
Advanced strategies of salt blocking in hypersaline water—including hydrophobic, unidirectional brine transportation, dissolution migration, edge crystallization, siphon capillary effect, and zwitterionic effect. ABSTRACT In the past decade, due to high consumption of freshwater and severe drought on the earth, human beings have experienced an ...
Tessema AA   +3 more
europepmc   +2 more sources

Design of planar inverted-F antennas (PIFA) for multiband wireless applications [PDF]

open access: yes, 2009
A small three bands printed inverted-F antenna with independently controlling the resonant frequency is presented. The proposed antenna consists of two arms supported by shorting walls fed by 50 Ω microstrip transmission line and a ground plane.
AbuTarboush, HF   +11 more
core   +7 more sources

Swing-up control of inverted pendulum systems. [PDF]

open access: yes, 1996
In Part I a technique for the swing-up control of single inverted pendulum system is presented. The requirement is to swing-up a carriage mounted pendulum system from its natural pendent position to its inverted position.
Shao, Jindi, Bradshaw, Alan
core   +4 more sources

Ground independent planar inverted-F antenna (PIFA) for very small mobile phone [PDF]

open access: yes, 2010
Copyright @ 2010 LAPCA small ultr-thin tri-band Planar Inverted-F Antenna (PIFA) is presented. The proposed antenna consists of slotted radiated parts supported by shorting walls and a ground plane.
AbuTarboush, HF, Nilavalan, R, Peter, T
core   +6 more sources

Online monitoring and sampling analysis of siltation in the middle route of the south-to-north water diversion project

open access: yesFrontiers in Environmental Science, 2022
The middle route project (MRP) of the South to North Water Diversion Project is a significant infrastructure and alleviating water scarcity in Northern China. MRP suffered from untraditional siltation problems.
Dawei Zhang   +10 more
doaj   +1 more source

Research on Multi-Objective Optimization Model of Foundation Pit Dewatering Based on NSGA-II Algorithm

open access: yesApplied Sciences, 2023
This study focuses on optimizing the foundation pit dewatering scheme using the foundation pit dewatering theory and the principles of multi-objective optimization.
Zhiheng Ma   +4 more
doaj   +1 more source

Distribution of vertical flow velocity upstream of an inverted siphon in the Middle Route of South-to-North Water Diversion Project

open access: yesShui kexue jinzhan, 2017
The inverted siphon is a commonly used hydraulic structure in water diversion projects.Therefore, research on the vertical flow velocity distribution in the upstream of the inverted siphon inlet is important to elucidating its hydraulic performance.The ...
FU Hui   +4 more
doaj   +1 more source

An experimental study on ice jam prevention of typical inverted siphon for South-to-North Water Diversion Project

open access: yesShui kexue jinzhan, 2013
For the safe operation of South-to-North Water Diversion Project,ice jam prevention of inverted siphon and other partial hydraulic structures is very important during the period of an icing event. The ice jam process at the entrance of inverted siphon is
FU Hui   +4 more
doaj   +1 more source

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