Results 111 to 120 of about 157,695 (360)

Grain Boundary Space Charge Engineering of Solid Oxide Electrolytes: Model Thin Film Study

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates unprecedented control of grain boundary electrical properties in solid electrolytes. Selective diffusion of cations through grain boundaries in thin films enables 12 orders of magnitude variation in ionic resistance, proving that systematic chemical modification of grain boundary electrical properties is feasible.
Thomas Defferriere   +5 more
wiley   +1 more source

The annual gas demand forecasting in air-source gas-fired absorption heat pumps

open access: yesE3S Web of Conferences, 2018
The forecasting of fuel demand is required for decision-making and management of heating systems. A simple methodology of gas demand forecasting in heating systems based on air-source gas-fired absorption heat pumps (GAHP) was presented and evaluated on ...
Langowski Piotr   +2 more
doaj   +1 more source

Towards the EU Emission Targets of 2050: Cost-Effective Emission Reduction in Finnish Detached Houses

open access: yesEnergies, 2019
To mitigate the effects of climate change, the European Union calls for major carbon emission reductions in the building sector through a deep renovation of the existing building stock.
Janne Hirvonen   +3 more
doaj   +1 more source

Charge‐Induced Morphing Gels for Bioinspired Actuation

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu   +4 more
wiley   +1 more source

An update of a simulation study of passively heated residemtial buildings [PDF]

open access: yes, 2016
A simulation study of passively heated residential buildings” published in Procedia Engineering 2015 showed how circulating 15-17ºC water from a 50-m deep U-tube to a floor radiator and solar-heated water from a 30 evacuated tube solar collector and a 2 ...
Abdullah, Mohammad Omar   +2 more
core  

RoHS‐Compliant, Cu‐Zn‐In‐Se‐Based Core/Multi‐shell Quantum Dots with Efficient and Tunable Short‐Wave Infrared Emission

open access: yesAdvanced Functional Materials, EarlyView.
An innovative combination of size‐controlled template synthesis, partial cation exchange reactions, and dual shell passivation offers a new class of RoHS‐compliant, heavy metal‐free Cu‐Zn‐In‐Se/ZnS/Al2O3 core/shell/shell quantum dots (QDs), exhibiting long‐range tunability, highly efficient SWIR emission with remarkably narrow photoluminescence ...
Avijit Saha   +8 more
wiley   +1 more source

Research Progress of Air Source Heat Pump Heat Storage System

open access: yesZhileng xuebao, 2017
The combination of heat storage technology and air source heat pump (ASHP) can provide heat source for air source heat pump defrosting, solve the problem of variable heat due to the fluctuation of outdoor air parameters, alleviate the contradiction between supply and demand, and perform an important function on the peak load shifting.
Ni Long   +3 more
openaire   +1 more source

The Dynamics of Interfacial Trap States in High‐Detectivity Near‐Infrared Photomultiplication Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
Photomultiplication organic photodetectors (PM OPDs) are an attractive strategy for health‐monitoring. Here, PM‐OPDs are reported with a specific detectivity of 5.7 × 1012 Jones and external quantum efficiency values of 3500% under −10 V. The dynamics of carrier trapping in these devices are elucidated through trap selective spectroscopical techniques.
Marie Houot   +9 more
wiley   +1 more source

Analysis and Optimization of the Coupling between Air-source Heat Pump and Building in Variable Operation Conditions

open access: yesZhileng xuebao, 2018
Many designers simply take rated COP (coefficient of performance) and heating capacity into consideration in terms of the performance of air-source heat pumps, leading to an insufficient heating effect of heat pumps under low temperature conditions in a ...
Li Sihui   +3 more
doaj  

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