Results 71 to 80 of about 209,208 (358)

High‐Concentration Mesogen‐Assisted Exfoliation of Low‐Dimensional Nanomaterials for Achieving Ultralow‐Temperature Actuations of Liquid Crystal Elastomers

open access: yesAdvanced Functional Materials, EarlyView.
Most matter is nominally frozen in the polar regions or space, and liquid crystal materials are no exception. Consequently, soft actuators, including liquid crystal elastomers (LCEs), are inoperative under such extreme cold in response to stimuli, as their motion relies on mechanical deformation.
Hyeonseong Kim   +5 more
wiley   +1 more source

The Solar-Assisted Vertical Ground Source Heat Pump System in Cold Climates—A Case Study

open access: yesProceedings, 2020
In this paper, experimental studies were performed for a solar ground source heat pump system (SGSHPS) with a vertical ground heat exchanger (VGHE). The experiment was operated during the summer in 2018. The heat from the solar collector was monitored by
Piotr Rynkowski
doaj   +1 more source

Seasonal evaluation of heat pump system for building heating and ventilation – a case study [PDF]

open access: yesE3S Web of Conferences, 2019
This paper presents results obtained from seasonal evaluation of ground source heat pump (GSHP) and exhaust air heat pump (EAHP) systems used for heating and ventilation of a school building.
Bugaj Andrzej, Miniewicz Maciej
doaj   +1 more source

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

On the Design and Response of Domestic Ground-Source Heat Pumps in the UK

open access: yesEnergies, 2014
The design and response of ground source heat pumps coupled to vertical closed loop arrays in UK domestic applications are investigated in this article.
Chris Underwood
doaj   +1 more source

Dynamic simulation model of trans-critical carbon dioxide heat pump application for boosting low temperature distribution networks in dwellings [PDF]

open access: yes, 2019
This research investigates the role of new hybrid energy system applications for developing a new plant refurbishment strategy to deploy small scale smart energy systems.
De Santoli, Livio   +4 more
core   +1 more source

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

GROUND SOURCE HEAT PUMP OPERATION ANALYSIS

open access: yes, 2021
The paper analyzes the influence of different parameters on the effective Coefficient of Performance (COP) of a ground source heat pump. Heat pump located in the Laboratory for Thermal Science Engineering at the Faculty of Mechanical Engineering in Belgrade is adopted for model. Since the change in soil temperature more or less depends on the change in
Cvetković, Marijana   +2 more
openaire   +1 more source

Fortissat minewater geothermal district heating project: case study [PDF]

open access: yes, 2017
This study summarises the findings of a feasibility assessment for a potential minewater geothermal energy system in the vicinity of the James Hutton Institute’s Hartwood Home Farm, North Lanarkshire in Scotland’s Central Belt. This study aimed to assess
Banks, David   +8 more
core   +1 more source

Miniature Nanomesh Mechano‐Acoustic Sensor with Wide Linear Dynamic Range, Broad Bandwidth, and Flat Frequency Response

open access: yesAdvanced Functional Materials, EarlyView.
A miniaturized mechano‐acoustic sensor is developed using an electrospun PVDF nanomesh as the diaphragm in a capacitive sensor structure. Unlike conventional nanomesh‐based sensors, it achieves high linear sensitivity, a broad and flat frequency response, and a compact form factor.
Jeng‐Hun Lee   +8 more
wiley   +1 more source

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