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Αποτελέσματα 9790-9809 από 49724
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A hybrid two-step approach for evaluating the impact of local rail defect on building vibration
(2017)With the development of light rail transit in urban areas, the effect of railway vibrations on buildings and people inside buildings is a growing problem. In particular, urban transit commonly generates large vibration ... -
Hybrid-type, multicomponent interval training upregulates musculoskeletal fitness of adults with overweight and obesity in a volume-dependent manner: A 1-year dose-response randomised controlled trial
(2022)This study examined the dose-response effects of a 1-year hybrid-type, multicomponent interval training programme (DoIT) on various musculoskeletal fitness parameters in inactive overweight and obese adults in a gym setting. ... -
A Hydraulic Evapotranspiration Multisensor
(2022)An exclusively mechanical stand-alone automatic device, self-adjusting to weather changes for controlled irrigation, that operates only on the energy of piped water, without electricity, is the described low-cost “Hydraulic ... -
Hydraulic Response of Deciduous and Evergreen Broadleaved Shrubs, Grown on Olympus Mountain in Greece, to Vapour Pressure Deficit
(2022)In this study, leaf hydraulic functionality of co-occurring evergreen and deciduous shrubs, grown on Olympus Mountain, has been compared. Four evergreen species (Arbutus andrachne, Arbutus unedo, Quercus ilex and Quercus ... -
Hydroclimatic variability of regional droughts in Greece using the palmer moisture anomaly index
(2002)The hydroclimatic variability of droughts at a regional scale in the semiarid climate of Greece was examined in this paper. The moisture anomaly Z-index of the Palmer Drought Severity Index (PDSI) was employed for a ... -
Hydrodynamic loading and wave run-up on "elliptical" breakwaters
(2016)This paper applies a semi-analytical solution methodology for the linear hydrodynamic diffraction induced by plane breakwaters assimilated as degenerate elliptical cylinders subjected to incident waves. The solution of the ... -
Hydrodynamics and ellipsoidal harmonics
(2018)This paper presents the theoretical basis for treating hydrodynamic problems in which the use of ellipsoidal harmonics is necessary. Those include the water wave diffraction problem, the wave resistance problem and the ... -
Hydrodynamics and near trapping effects in arrays of multiple elliptical cylinders in waves
(2018)The purpose of the present study is the investigation of the hydrodynamic interactions induced by arrays of elliptical cylinders subjected to regular waves. The solution methodology employs linear potential theory and is ... -
Hydrogen absorption into aluminum alloy 2024-T3 during exfoliation and alternate immersion testing
(1998)Exfoliation and alternate immersion corrosion were investigated in Al alloy 2024-T3 (UNS A92024) uptake during exposure and to correlate it with corrosion characterization. Characterization involved determination of weight ... -
Hydrogen induced shear localization of the plastic flow in metals and alloys
(2001)Hydrogen enhanced localized plasticity (HELP) is a viable mechanism for hydrogen embrittlement supported by experimental observations. According to the HELP mechanism, hydrogen induced premature failures result from hydrogen ... -
Hydrogen production aided by new (1-x) SrTi0.5Fe0.5O3-delta-xCe(0.8)(Sm0.8Sr0.2)(0.2)O2-delta(MIEC) composite membranes
(2014)In the present work, composite materials of the type (1-x)SrTi0.5Fe0.5O3-delta-xCe(0.8)(Sm0.8Sr0.2)(0.2)O2-delta (with x = 0, 0.25, 0.5, 0.75 and 1) are obtained by the two step solid state technique. Their transport ... -
Hydrogen production aided solid oxide electrochemical reformer fed with octane: A theoretical analysis
(2008)In the present work the possibility of pure hydrogen production by a solid oxide electrochemical reformer (SOER) is examined. Initial reagents are water steam, flowing into the cathode channel and octane flowing into the ... -
Hydrogen production by ethanol steam reforming over a commercial Pd/-gamma-Al2O3 catalyst
(2004)In the present work the reaction of biomass-derived ethanol steam reforming for hydrogen rich gas streams production, over a commercial alumina supported palladium catalyst was investigated. In particular, the dependence ... -
Hydrogen production over a commercial Pd/Al2O3 catalyst for fuel cell utilization
(2003)In order to produce a hydrogen stream for fuel cell utilization, the study of the ethanol steam reforming process over an alumina supported palladium commercial catalyst was carried out. The effect of the reaction temperature, ... -
Hydrogen production via aqueous - Phase glucose reforming: A thermodynamic approach
(2009)In the present work the thermodynamic analysis of aqueous - phase glucose reforming reaction has been studied. For the investigation purposes the temperature range of 0 - 100°C and atmospheric total pressure have been ... -
Hydrogen storage station location selection in sustainable freight transportation via intuitionistic hesitant decision support system
(2022)Increasingly fierce competition in energy industry for alternative fuels has raised demand for fuel storage stations to be one of the pivots towards sustainable urban freight transportation. For zero-emission hydrogen-powered ... -
Hydrogenolysis of glycerol to propylene glycol by in situ produced hydrogen from aqueous phase reforming of glycerol over SiO2-Al2O3 supported nickel catalyst
(2016)In the present work, the reactions of glycerol's aqueous phase reforming (APR) and Aqueous Phase Hydrogenolysis (APH) in a batch reactor containing SiO2-Al2O3 supported 65% Ni catalyst are performed. The effect of: i) the ...