Results 31 to 40 of about 35,594 (263)

Canal Geometry, Flow Velocity, Dallisgrass (Paspalum dilatatum Poir.) Density and Soil Phosphorous Effects on Hydraulic Resistance of Vegetated Canals

open access: yesJournal of Agricultural Sciences, 2016
Dallisgrass Paspalum dilatatum Poir. reduces discharges in irrigation canals and causes problems in operation and maintenance of canals. This study has been conducted to determine roughness coefficient in vegetated canals caused by dallisgrass and to ...
Abolfazl Nasserı
doaj   +1 more source

The Technological Alternatives for Energy and Hydraulic Improvements

open access: yesJournal of Architectural and Engineering Research, 2022
The problem of converting attenuated hydraulic energy into power energy in an artificial local resistance unit placed on a gravity drinking water pipeline (outlet control valve, pressure regulator) without disrupting the hydraulic regime of the water ...
Aram Ashot Sahakyan   +1 more
doaj   +1 more source

Hydraulic Resistance of Artificial Concrete Blocks

open access: yesCoastal Engineering 1970, 1970
Theoretical analysis and experiments are made to clarify the mechanism of reducing the wave energy by the block structures In order to express the hydraulic reistance of three different kinds of blocks, three different models are proposed The hydraulic radius and the porosity of the block structures are essentially important factors m the expression of
Mubuo Shuto, Hiroshi Hashimoto
openaire   +2 more sources

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş   +2 more
wiley   +1 more source

The Study of Dynamic Milk Ultrafiltration Performance Influenced by Membrane Molecular Weight Cut off [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2007
The effect of membrane molecular weight cut off (MWCO) at three levels (10, 20 & 50 kD) on dynamic behavior of permeate flux (JP), hydraulic resistances (total hydraulic resistance, RT; reversible fouling resistance, Rrf; irreversible fouling resistance,
Sayed Mohammad Ali Razavi, Meirion Jones
doaj  

Increasing the Flow Capacity of Hoses with Electrical-Heater Coils to Supply Thickened Preservatives for Spraying

open access: yesИнженерные технологии и системы, 2022
ntroduction. Anticorrosion protection of agricultural machinery working elements is provided through using pneumatic application of thickened preservatives with heating.
Aleksandr I. Petrashev   +1 more
doaj   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Optimal fractal tree-like microchannel networks with slip for laminar-flow-modified Murray’s law

open access: yesBeilstein Journal of Nanotechnology, 2018
The fractal tree-like branched network is an effective channel design structure to reduce the hydraulic resistance as compared with the conventional parallel channel network.
Dalei Jing   +3 more
doaj   +1 more source

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

open access: yesAdvanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk   +3 more
wiley   +1 more source

Adaptive impact resistance support method for advanced hydraulic supports in mines based on digital twins and deep reinforcement learning

open access: yesGong-kuang zidonghua
Due to the disturbance of geological disasters such as deep mining and rock burst, there are problems such as poor self perception capability, weak intelligent anti impact adaptive capability, and lack of decision-making and control capability in the ...
ZHANG Fan   +3 more
doaj   +1 more source

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