Browsing University of Hertfordshire by Title
Now showing items 21775-21794 of 24054
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Thermal build-up, decay and retention responses to local therapeutic application of 448 kHz capacitive resistive monopolar radiofrequency : A prospective randomised crossover study in healthy adults
(2015-11-17)PURPOSE: Radiofrequency-based electrophysical agents are widely used in therapy-related clinical practice for their thermal effects, mainly relieving pain and inflammation and improving tissue extensibility. The most ... -
Thermal conductivity measurement of porous silicon by the pulsed-photothermal method
(2011-09-07)Thermal properties of two types of porous silicon are studied using the pulsed-photothermal method (PPT). This method is based on a pulsed-laser source in the nanosecond regime. A 1D analytical model is coupled with the ... -
Thermal cycling and ageing of a glass-ceramic sealant for planar SOFCs
(2011-09)Thermal cycling and thermal ageing tests were performed on Crofer22APU/glass-ceramic/Anode-Supported-Electrolyte (ASE) joined samples in air at the SOFC operating temperature of 800 degrees C. The Crofer22APU had been ... -
Thermal cycling of Crofer22APU-sealant-anode supported electrolyte joined structures for planar SOFCs up to 3000 h
(2013)Thermal cyclic tests in air were performed for Crofer22APU/glass-ceramic/ Anode-Supported-Electrolyte (ASE) joined samples for a total period of 3000 h. Different cooling rates from the SOFC operating temperature of 800 C ... -
A thermal desorption method for determining atmospheric Semi-Volatile Organic Compound concentrations
(University of Hertfordshire, 2007)It is now recognised that indoor environments contribute significantly to human exposure to airborne pollutants. People spend a large amount of time in indoor environments and there are many indoor sources that are not ... -
Thermal diffusivity of Ni–Ti SMAs
(2009)In this paper thermal diffusivity dependence on temperature of NiTi SMAs alloy in the range from 300 K up to 1500 K is reported and the experimental–numerical approach adopted for this scope is described. The experimental ... -
Thermal Effect of Cylindrical Heat Sink on Heat Management in LED Applications
(2022-10-14)Light Emitting Diode (LED) applications are increasingly used in various microelectronic devices due to their efficient light generation. The miniaturisation of the LED and its integration into compact devices within the ... -
Thermal Feedback in the High-mass Star- and Cluster-forming Region W51
(2017-06-16)High-mass stars have generally been assumed to accrete most of their mass while already contracted onto the main sequence, but this hypothesis has not been observationally tested. We present ALMA observations of a 3 × 1.5 ... -
Thermal IR radiative properties of mixed mineral dust and biomass aerosol during SAMUM-2
(2011-09-01)Ground-based high spectral resolution measurements of downwelling radiances from 800 to 1200cm-1 were conducted between 20 January and 6 February 2008 within the scope of the SAMUM-2 field experiment. We infer the spectral ... -
Thermal Lens Spectrometry Reveals Thermo-Optical Property Tuning of Conjugated Polymer Nanoparticles Prepared by Microfluidics
(2022-07-18)Conjugated polymers display useful thermo-optical properties of high relevance to biomedical applications, which are not only dependent on their intrinsic chemical composition but also related to their physical conformation ... -
Thermal Performance Analysis of an Underground Closed Chamber with Human Body Heat Sources under Natural Convection
(2018-12-25)In this article, a combined experimental and numerical study has been performed to investigate the thermal performance of a mine refuge chamber (MRC) under natural convection. In the current study, a 20-hour heating ... -
Thermal performance of a mine refuge chamber with human body heat sources under ventilation
(2019-11-05)This paper investigated the dynamic coupling heat transfer characteristics of rock and air in a Mine Refuge Chamber (MRC) under ventilation. In the current work, a comprehensive fifty-person MRC model combining human-body ... -
Thermal performance of an ice storage device for cooling compressed mine air in high-temperature mine refuge chambers
(2023-10-31)Power outages and the risk of explosion in disaster areas make the temperature control in hot mine refuge chambers become extremely challenging. In this article, an ice storage cooling mine compressed air device with a ... -
Thermal, chemical, tensile and morphological characterization studies of bamboo fibre extracted from the indian species bambusa bambos
(2023-10-06)The objective of this research is to investigate the extraction and characterization of a particular kind of Indian bamboo family plant known as Bambusa bambos. The fibres were extracted from the bamboo plant in the form ... -
Thermodynamic Analysis and Algorithm Optimisation of a Multi-stage Compression Adiabatic Compressed Air Energy Storage System
(2020-06-15)In this article, a novel multi-stage compression and heat recovery on an adiabatic compressed air energy storage (A-CAES) system is proposed. In the current work, an in-house code named CAESSC 1.0 is successfully developed ... -
Thermodynamic analysis and comparison between CO2 transcritical power cycles and R245fa organic Rankine cycles for low grade heat to power energy conversion
(2016-08-05)In this paper, a theoretical study is conducted to investigate and compare the performance of CO2 transcritical power cycles (T-CO2) and R245fa organic Rankine cycles (ORCs) using low-grade thermal energy to produce useful ... -
Thermodynamic considerations of solvent/enhancer uptake into a model membrane
(2010-08-30)The aim of this study was to conduct a thermodynamic analysts of the uptake of solvents into a model membrane as a precursor to skin transport studies. The investigation was designed so that the methodology may be applied ... -
Thermogelling Materials for Topical Drug Delivery
(2021-02-26)This thesis describes the synthesis and characterisation of thermogelling materials and their evaluation as topical drug delivery excipients. Thermogelling materials are polymers which transition from solution to gel ...