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Now showing items 25621-25640 of 51066
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Thermal Acclimation In The Resting Metabolism Of The Nocturnal Gecko, Hemidactylus Flaviviridis
( Qatar University , 1996 , Article)Hemidactylus flaviviridis was acclimated to two temperature regimes (20 and 30°C). The resting metabolic rates (ml g1 h"1) were determined at 20, 25,30 and 35°C, using constant pressure manometric respirometers. The 20°C- ... -
Thermal analysis of Si-IGBT based power electronic modules in 50kW traction inverter application
( Elsevier , 2023 , Article)Estimation of accurate IGBT junction temperature is crucial for reliability assessment. The well-known RC lumped approach can help predict junction temperature. However, this method suffers from inaccuracy while characterizing ... -
Thermal and catalytic cracking of petroleum residue oil
( Qatar University , 2005 , Article)Thermal and catalytic cracking over synthesized nickel-molybdenum supported on aluminum borate (NiMo/AB) catalysts were studied. A series of aluminum borate supports with various aluminum borate (A/B) weight ratios were ... -
Thermal and mechanical characterization of injection moulded high density polyethylene/paraffin wax blends as phase change materials
( Elsevier Ltd , 2014 , Article)Thermal and mechanical properties of blends based on high density polyethylene and paraffin wax were investigated. The blends were prepared from 5 to 50vol. % of paraffin wax employing a twin-screw extruder. Thermal behaviour ... -
Thermal and mechanical properties of injection molded recycled high density polyethylene blends with virgin isotactic polypropylene
( Elsevier, Ltd , 2013 , Article)Polymer blending has become an important field in polymer research and especially in the area of recycling. In this research the target was to reduce the polymer waste problem. Therefore, recycled high density polyethylene ... -
Thermal and mechanical properties of PP/HDPE/wood powder and MAPP/HDPE/wood powder polymer blend composites.
( Elsevier , 2017 , Article)The morphology and properties of blends of PP/HDPE and MAPP/HDPE blends, and their composites with wood powder, were investigated in this paper. The blends showed two-phase morphologies, and MAPP interacted better than ... -
Thermal and mechanical stability of microwave sintered cold compact bismuth telluride thermoelectric material
( Elsevier , 2022 , Article)Both p-type and n-type bismuth telluride (Bi2Te3)-based thermoelectric materials demonstrate high thermoelectric efficiency in the low-temperature thermoelectric modules, but their constrained thermal and mechanical stability ... -
Thermal and Optical Radiation Effects on LEH
( Qatar University , 2003 , Article)Synthetic red blood cells known as LEH is a material that offers an excellent alternative to substitution blood since the chemical composition of the Oxy, LEH, is similar to that of the natural blood cells. Unfortunately, ... -
Thermal behavior and post-heating fracture characteristics of polypropylene microfiber-reinforced geopolymer binders
( Elsevier , 2022 , Article)This paper investigated the post-heating behavior of fly ash-based geopolymer binders reinforced with polypropylene (PP) microfibers. Geopolymer binders with different fiber contents including 0%, 0.05%, 0.1%, and 0.2% by ... -
Thermal Change Index-Based Diabetic Foot Thermogram Image Classification Using Machine Learning Techniques
( MDPI , 2022 , Article)Diabetes mellitus (DM) can lead to plantar ulcers, amputation and death. Plantar foot thermogram images acquired using an infrared camera have been shown to detect changes in temperature distribution associated with a ... -
Thermal characterization of phase change materials based on linear low-density polyethylene, paraffin wax and expanded graphite
( Elsevier Ltd , 2016 , Article)Thermal characterization of Phase Change Materials (PCMs) based on linear low-density polyethylene (LLDPE), paraffin wax (W) and expanded graphite (EG) is reported in this paper. Investigated PCMs showed high potential for ... -
Thermal characterization of polymer matrix composites containing microencapsulated paraffin in solid or liquid state
( Elsevier Ltd , 2014 , Article)This work focuses on the study of heat transfer mechanisms in composites materials which may be used for Latent Heat Thermal Energy Storage applications. These composites contain phase change material (PCM) which can absorb ... -
THERMAL COMFORT CONDITIONS OF AN INDOOR SWIMMING POOL
(2023 , Master Thesis)In this thesis, the thermal comfort and indoor conditions for an indoor swimming pool located in desert climate are investigated numerically. Such climate is characterized by very mild winters, and very hot and sunny summers ... -
Thermal comfort in Indian apartments
( Springer Singapore , 2018 , Book chapter)© Springer Nature Singapore Pte Ltd. 2018. Socio-political and economic drivers can be historically traced behind the apartment' evolutionary trajectory. Absence and poor adherence to norms appear to have caused thermal ... -
Thermal comfort investigation of an outdoor air-conditioned area in a hot and arid environment
( Taylor and Francis Inc. , 2017 , Article)Thermal comfort in hot and arid outdoor environments is an industrial challenging field. An outdoor air-conditioned area was designed and built to host sport and social events during summers 2014 and 2015 in Qatar. This ... -
Thermal conductivity and latent heat thermal energy storage properties of LDPE/wax as a shape-stabilized composite phase change material
(2014 , Article)Phase change material (PCM) composites based on low-density polyethylene (LDPE) with paraffin waxes were investigated in this study. The composites were prepared using a meltmixing method with a Brabender-Plastograph. The ... -
Thermal degradation of aqueous amine/amino acid solutions in the presence and absence of CO 2
( Institute of Physics Publishing , 2018 , Conference Paper)The stability to thermal degradation of aqueous solutions of methyldiethanolamine (MDEA) and their mixtures with glycine (Gly), in the absence and the presence of CO 2 , was investigated by Gas chromatography-flame ionization ... -
Thermal dimensional stability of isotropic polyoxymethylene
( John Wiley & Sons, Ltd. , 1991 , Article)A parametric mapping analysis of the effect of various structural and morphological parameters on the thermal dimensional stability of polyoxymethylene is highlighted. The molecular composites model is found to describe ... -
Thermal insitu analyses of multicomponent pyrophosphate cathodes materials
( Electrochemical Science Group , 2015 , Article)Development of secondary batteries based on abundant and inexpensive elements are vital. Amongvarious alternative choices, sodium-ion batteries (NIBs) are promising because of plentiful resourcesand low costs of sodium ... -
Thermal integrity testing of cast in situ piles: An alternative interpretation approach
( SAGE Publications Ltd , 2021 , Article)Integrity testing of deep cast in situ concrete foundations is challenging due to the intrinsic nature of how these foundations are formed. Several integrity test methods have been developed and are well established, but ...