Results 1 to 10 of about 35,657 (227)

Structures and Properties of trans‐1,3,3,3‐Tetrafluoro‐ propene (HFO‐1234ze) and 2,3,3,3‐Tetrafluoropropene (HFO‐1234yf) Refrigerants [PDF]

open access: goldChemistryOpen, 2020
The refrigerant trans‐1,3,3,3‐tetrafluoropropene (HFO‐1234ze) is used as a replacement for former cooling agents that have been phased‐out due to their global warming potential or ozone depleting potential.
Dr. Jan Schwabedissen   +6 more
doaj   +5 more sources

Scalp HFO rates decrease after successful epilepsy surgery and are not impacted by the skull defect resulting from craniotomy [PDF]

open access: goldScientific Reports, 2022
Epilepsy surgery can achieve seizure freedom in selected pediatric candidates, but reliable postsurgical predictors of seizure freedom are missing. High frequency oscillations (HFO) in scalp EEG are a new and promising biomarker of treatment response ...
Dorottya Cserpan   +6 more
doaj   +2 more sources

A2L low GWP HFO based refrigerant solutions in heat pump applications to drive energy efficiency, safety, and sustainability even in building restoration [PDF]

open access: yesE3S Web of Conferences, 2022
Driven by energy efficiency requirements and legal restrictions like F-Gas Regulation Heat Pump OEM supplier are looking for alternative refrigerant solutions.
Küpper Hans-Dieter   +2 more
doaj   +1 more source

Comparison of heat-transfer performance of a flat-plate pulsating heat pipe based on heating orientation and cross-sectional shape of the pipe

open access: yesMechanical Engineering Journal, 2023
The effects of cross-sectional shapes of flat-plate pulsating heat pipes (PHPs) on heat-transfer performance were experimentally investigated. The flat-plate PHP, made of aluminum alloy, has a closed-end serpentine channel with 22 turns. Four PHP samples
Yosuke YASUDA   +3 more
doaj   +1 more source

Entrevista al Ing. César Penailillo

open access: yesPrisma Tecnológico, 2023
LG Electronics, es un fabricante líder de productos comerciales y de consumo que van desde televisores, electrodomésticos, soluciones de aire acondicionado, monitores, robots de servicio, componentes automotrices y sus marcas premium LG SIGNATURE y LG ...
Armando Pinillo
doaj   +1 more source

Refrigerants for sustainable environment – a literature review

open access: yesInternational Journal of Sustainable Energy, 2022
The application of HVAC in the present age has affected our lives in much far-reaching range with an extensive variety of applications. HVAC is slowly becoming the pillar of our lifestyle and performs a crucial role in future sustainable growth.
D.C. Savitha   +3 more
doaj   +1 more source

Epileptogenic high-frequency oscillations present larger amplitude both in mesial temporal and neocortical regions

open access: yesFrontiers in Human Neuroscience, 2022
High-frequency oscillations (HFO) are a promising biomarker for the identification of epileptogenic tissue. While HFO rates have been shown to predict seizure outcome, it is not yet clear whether their morphological features might improve this prediction.
Victor Karpychev   +7 more
doaj   +1 more source

Heat transfer performance of Pulsating Heat Pipe with Hydrofluoroolefin

open access: yesNihon Kikai Gakkai ronbunshu, 2020
Pulsating heat pipes (PHP) are increasingly attracting attention for their potential to downsize electronic devices to be designed. Unlike conventional heat pipes, PHP maintains high heat transfer performance despite having a smaller diameter, and have a
Yosuke YASUDA   +3 more
doaj   +1 more source

Facile Synthesis of Hafnium Oxide Nanoparticle Decorated on Graphene Nanosheet and Its Photocatalytic Degradation of Organic Pollutants under UV-Light Irradiation

open access: yesApplied Sciences, 2022
The HfO2 nanoparticles and the nanocomposites of HfO2-graphene (10, 30, and 50 wt%) were prepared via precipitation and simple mixing method. The XRD pattern confirmed the presence of monoclinic HfO2 and hexagonal graphene in the nanocomposite.
Venkatachalam Jayaraman   +8 more
doaj   +1 more source

High frequency oscillations in relation to interictal spikes in predicting postsurgical seizure freedom

open access: yesScientific Reports, 2023
We evaluate whether interictal spikes, epileptiform HFOs and their co-occurrence (Spike + HFO) were included in the resection area with respect to seizure outcome.
Jakob V. E. Gerstl   +4 more
doaj   +1 more source

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