Results 81 to 90 of about 78,780 (311)

Resolving the Cu(bdc) Conundrum: Identifying Non‐Porous Packing of Prototypical Coordination‐Network Thin Films Combining Advanced Diffraction Techniques and Computational Modelling

open access: yesAdvanced Functional Materials, EarlyView.
Solution‐processed Cu(bdc) forms prototypical MOF thin films for which a multitude of not fully satisfactory structural models have been suggested. Combining rotating grazing‐incidence diffraction and X‐ray reflectivity on two complementary samples with density‐functional theory, we first discard the previously suggested models and then identify a non ...
Narges Taghizade   +7 more
wiley   +1 more source

Experimental Study on Hot Water System with Two-stage Condensation Heat Pump

open access: yesZhileng xuebao, 2010
When an air source heat pump water heater runs at higher water temperature,the power input and the discharge temperature of its compressor are high,leading to problems of security and stability,and the significant decrease of the system efficiency.In our
江明旒   +4 more
doaj  

The thermal performance of foundation piles used as heat exchangers in ground energy systems

open access: yes, 2012
Pile heat exchangers are expected to make a significant contribution to meeting UK and EU renewable energy and carbon dioxide reduction targets. However, design for the thermal capacity of pile heat exchangers has to date been largely based on methods ...
Loveridge, F., Loveridge, Fleur
core  

Mechanoluminescent HOF Nanotransducers Enabled Sono‐Optogenetics in Parkinsonian Rats

open access: yesAdvanced Functional Materials, EarlyView.
We present a mechanoluminescent system utilizing porous hydrogen‐bonded organic frameworks (HOFs) as a toolkit for focused ultrasound‐triggered, non‐invasive light delivery to the deep brain in rats. This approach enables the specific activation of PV‐GPe neurons in dopamine‐depleted Parkinson's disease rat models, resulting in a comparable alleviation
Wenliang Wang   +18 more
wiley   +1 more source

Cycle Analysis of Heating and Refrigeration in New Air-source Heat Pump

open access: yesZhileng xuebao, 2005
An air source heat pump operating in cascade cycle way was presented. The new-type heat pump can operate not only in a single-stage cycle, but also in a cascade cycle. The operation performance of the heat pump was stimulated.
王林, 陈光明, 陈斌, 王勤
doaj   +2 more sources

两级冷凝热泵热水系统的实验研究

open access: yesZhileng xuebao, 2010
When an air source heat pump water heater runs at higher water temperature,the power input and the discharge temperature of its compressor are high,leading to problems of security and stability,and the significant decrease of the system efficiency.In our
江明旒   +4 more
doaj  

Energy Optimization for Transcritical CO2 Heat Pumps for Combined Heating and Cooling and Thermal Storage Applications

open access: yes, 2012
A transcritical heat pump (THP) cycle using carbon dioxide (CO2) as the refrigerant is known to feature an excellent coefficient of performance (COP) as a thermodynamic system.
Yazawa, Kazuaki   +3 more
core  

Magnetic‐Field Control of Surface States in CoFe2O4 Thin Films for Nitrate Electroreduction to Ammonia

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour   +11 more
wiley   +1 more source

High-temperature heat pumps: Fundamentals, modelling approaches and applications

open access: yesEnergy
In March 2023, the European Parliament and Council reached a consensus to increRCiase the binding renewable energy target (RES) to a minimum of 42.5% by 2030, effectively doubling the proportion of RES from the 2020 baseline. This significant development aligns the EU more closely with the objectives of the European Green Deal and the REPowerEU ...
Jouhara, H.   +5 more
openaire   +3 more sources

Technology Development and Performance Improvement of CO2 Automobile Heat Pump Air-conditioning System

open access: yesZhileng xuebao, 2018
This study develops a set of CO2 transcritical automobile heat pump air-conditioning systems, which adopts a CO2 vehicle electrical compressor, micro-channel heat exchanger, electronic expansion valve and other key components.
Wang Dandong   +5 more
doaj  

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