Results 61 to 70 of about 287,653 (309)

Biosupercapacitors for Human‐Powered Electronics

open access: yesAdvanced Functional Materials, EarlyView.
Biosupercapacitors are emerging as biocompatible and integrative energy systems for next‐generation bioelectronics, offering rapid charge–discharge performance and mechanical adaptability. This review systematically categorizes their applications from external to organ‐level systems and highlights their multifunctional roles in sensing, actuation, and ...
Suhyeon Kim   +7 more
wiley   +1 more source

Analysis of Heat Pumps Efficiency in Selected Locations – A Case Study

open access: yesEnvironmental and Climate Technologies, 2022
Heat pumps are increasingly popular in individual buildings and could help to meet expectations of ambitious energy-environmental European goals until 2050.
Ołtarzewska Agata, Krawczyk Dorota Anna
doaj   +1 more source

Investigation on thermal-hydraulic performance of outdoor heat exchanger in air sources heat pump [PDF]

open access: yes, 2017
A plethora of findings exists on the decreasing heat transfer performance of ASHP under frosting condition. This study investigates, using field and laboratory experiments, the frosting behavior and heat transfer performance of fin-tube exchangers ...
Chen, Y   +4 more
core   +2 more sources

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán   +13 more
wiley   +1 more source

Exergy Analysis of Transcritical CO2 Air-Source Heat Pump with Honeycomb Gas Cooler [PDF]

open access: gold, 2023
Yujia Zhang   +6 more
openalex   +1 more source

Performance analysis of air source heat pumps using detailed simulations and comparison to field trial data [PDF]

open access: yes, 2010
The take-up of heat pump technologies in the UK domestic sector has lagged far behind other countries in Europe and North America due primarily to the ready availability of cheap natural gas; this has led to the predominance of gas central heating ...
Cockroft, J., Ghauri, S., Kelly, N.J.
core  

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

open access: yesAdvanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig   +11 more
wiley   +1 more source

Development of concepts for a zero-fossil-energy greenhouse [PDF]

open access: yes, 2008
Dutch government and greenhouse horticultural practice aim for strongly reduced fossil energy use and of environmental loads in 2010 and energy neutral greenhouses in 2020.
Bot, G.P.A.   +4 more
core   +2 more sources

Emerging 2D Materials and Their Hybrid Nanostructures for Label‐Free Optical Biosensing: Recent Progress and Outlook

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights recent advances in label‐free optical biosensors based on 2D materials and rationally designed mixed‐dimensional nanohybrids, emphasizing their synergistic effects and novel functionalities. It also discusses multifunctional sensing platforms and the integration of machine learning for intelligent data analysis.
Xinyi Li, Yonghao Fu, Yuehe Lin, Dan Du
wiley   +1 more source

Design of a space heating system with an air-water heat pump and bivalent heat source [PDF]

open access: yes, 2015
Práce řeší kompletní rekonstrukci otopné soustavy, tj. včetně zdroje tepla, rozvodů a otopných těles, rodinného domu s vyššími tepelnými ztrátami. Jako zdroj tepla je zvoleno tepelné čerpadlo vzduch-voda.
Skočík, Lukáš
core  

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