Results 31 to 40 of about 1,217,377 (198)

Comparison of designing simple steel frame & coaxial brace systems by contrast of blast, using two methods of load & resistance coefficients & performance surfaces [PDF]

open access: yesJournal of Structural and Construction Engineering, 2016
Nowadays, because of the increasing terrorist attacks around the urban areas, designing buildings by contrast of resulted loads of blast came into consideration particularly in some sensitive buildings & vital arteries.
P. Hassanvand   +3 more
doaj   +1 more source

Optimization study of lead-based reactor heat exchangers based on Dakota coupling CFD

open access: yesInternational Journal of Advanced Nuclear Reactor Design and Technology
The lead-bismuth fast reactor is one of the fourth-generation reactor types.The microchannel heat exchangers are used as intermediate heat exchangers, which significantly influence the efficiency of supercritical carbon dioxide (S–CO2) Brayton cycle ...
Ge Gao   +6 more
doaj   +1 more source

Active and Passive acoustic logging applied to the detection of preferential flow in a sedimentary aquifer

open access: yesScience and Technology for Energy Transition, 2023
Two boreholes of an experimental site located in the Cher region (France) were investigated via Full Waveform Acoustic Logging (FWAL). The acoustic tool used for the FWAL experiments is a flexible monopole tool holding two pairs of piezoelectric ...
Mari Jean Luc   +3 more
doaj   +1 more source

474: lighting and thermal performance of innovative shading devices: new insights into their aesthetics and control in a Mediterranean climate [PDF]

open access: yes, 2008
With a view towards minimising energy demand for cooling and artificial lighting in buildings, this paper evaluates innovative shading devices and how they can balance a generous degree of control mastering seasonal natural light with thermal gains in a ...
Passive & Low Energy Architecture (PLEA)   +3 more
core  

Effect of Photomultiplier Tube Voltage on the Performance of Sealed NaI (Tl) Scintillator Detectors

open access: yesScience and Technology of Nuclear Installations
We explored the nonlinear characteristics of energy resolution (ER) for the sealed NaI (Tl) scintillator detector by using a gamma-ray spectroscopy system and Monte Carlo simulation.
Hongchi Zhou   +4 more
doaj   +1 more source

New Nusselt Number Correlation and Turbulent Prandtl Number Model for Turbulent Convection with Liquid Metal Based on Quasi-DNS Results

open access: yesEnergies
Liquid metal is widely used as the primary coolant in many advanced nuclear energy systems. Prandtl number of liquid metal is much lower than that of the conventional coolant of water or gas. Based on the Reynolds analogy, the turbulent Prandtl number is
Hao Fu   +6 more
doaj   +1 more source

Geothermal ground heat exchangers in Malta : thermal performance assessment of infill grouts [PDF]

open access: yes, 2013
The aim of this paper was to assess the thermal conductivity of proprietary grout mixes versus local ones in Malta. Ground source heat pump (GSHP) systems consume 75% less electricity than conventional environmental control systems and have lower ...
Runco, Lara   +3 more
core  

Prospective PCM–Desiccant Combination with Solar-Assisted Regeneration for the Indoor Comfort Control of an Office in a Warm and Humid Climate—A Numerical Study

open access: yesEnergies, 2023
Favorable thermal conditions within buildings are a necessity. Mechanical air conditioning, although effective, contributes a significant percentage of the world’s total energy use, which contributes to global warming.
Edson Manyumbu   +2 more
doaj   +1 more source

Geant4 Simulation Study of Dose Distribution and Energy Straggling for Proton and Carbon Ion Beams in Water

open access: yesMATEC Web of Conferences, 2016
Dose distribution and energy straggling for proton and carbon ion beams in water are investigated by using a hadrontherapy model based on the Geant4 toolkit.
Zhao Qiang, Zhang Zheng, Li Yang
doaj   +1 more source

Passive euthanasia [PDF]

open access: yesJournal of Medical Ethics, 2005
The idea of passive euthanasia has recently been attacked in a particularly clear and explicit way by an “Ethics Task Force” established by the European Association of Palliative Care (EAPC) in February 2001. It claims that the expression “passive euthanasia” is a contradiction in terms and hence that there can be no such thing.
Garrard, E., Wilkinson, Stephen
openaire   +3 more sources

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