Results 51 to 60 of about 165,635 (214)

Cohesive sediment research - a database of UK projects (SR 217) [PDF]

open access: yes, 1989
Hydraulics Research (HR) and the Department of the Environment (DoE) have jointly funded research with the objective of collaborating with University and Polytechnic researchers in the field of cohesive sediments.
Hydraulics Research Wallingford, -
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Robust Position Control of an Electro‐Hydraulic Actuator via Metaheuristic Optimization of a Fractional‐Order PID Controller

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this study, a robust position control strategy is presented for a two‐stage electro‐hydraulic actuator system using a fractional‐order proportional–integral–derivative (FOPID) controller tuned by Kirchhoff's law algorithm (KLA). Electro‐hydraulic systems exhibit strong nonlinearities, parameter uncertainties, and external disturbances ...
Ridvan Firat Cinar   +8 more
wiley   +1 more source

Trapping efficiency of reservoirs (SR 212) [PDF]

open access: yes, 1989
This report describes a study undertaken by Hydraulics Research to investigate the factors which affect the trapping efficiency of reservoirs. A numerical reservoir sedimentation model is used to investigate the effect of altering variables which ...
Hydraulics Research Wallingford, -
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Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods

open access: yesStructural Concrete, EarlyView.
Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley   +1 more source

Behavior of manufactured sand and recycled coarse aggregate concrete‐filled steel tubular stub columns with circular section

open access: yesStructural Concrete, EarlyView.
Abstract Accelerated urbanization has intensified environmental concerns due to excessive natural resource consumption and construction waste generation. Circular concrete‐filled steel tube (CFST) columns incorporating manufactured sand recycled coarse aggregate (MS‐RCA) concrete have emerged as an innovative composite element offering notable ...
Minsheng Guan   +7 more
wiley   +1 more source

Stability formula for breakwaters armoured with Accropode

open access: yes, 1987
Delft Hydraulics has performed an extensive investigation on the stability of rubble mound revetments and breakwaters under random wave attack. Two stability formulae have been derived which describe the stability of rock slopes as a function of wave ...
Van der Meer, J.W. (author)
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Laatukäsikirjan laatiminen hydrauliikka-alan yritykselle : Raiha Hydraulics Oy [PDF]

open access: yes, 2021
Opinnäytteen tavoitteena oli valmistella ISO 9001:2015 -standardin vaatimukset täyttävä laadunhallintajärjestelmä Raiha Hydraulics Oy:lle. Yritys pyrkii laadun kehitysprojektinsa avulla saamaan laadunhallintajärjestelmäsertifikaatin ja kehittämään omaa ...
Ruuskanen, Vili
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Electro-Oxidative Synthesis of Phenazines

open access: yes, 2023
We disclose herein electro-oxidative synthesis as the general protocol for procuring phenazines under mild reaction conditions. Using aerial oxygen as an oxidant, inexpensive electrolyte, and electrodes, a diverse range of phenazines have been accessed ...
Pankaj Chauhan   +5 more
core   +1 more source

800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development

open access: yesHigh Voltage, EarlyView.
ABSTRACT The 800 kV fast circuit breaker (CB) used in ultra‐high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects.
Enyuan Dong   +6 more
wiley   +1 more source

Hydraulics manual

open access: yes, 2011
This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Title from PDF cover (viewed on July 28, 2014)"This ...

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