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السجلات المعروضة 17294 -- 17313 من 52941
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Modelling of cooling radiant cubicle for an office room to test cooling performance, thermal comfort and energy savings in hot climates
( Elsevier , 2022 , Article)The building industry challenges have led researchers to develop a personalized conditioning system aiming to create a microclimate comfort zone around the occupant. Radiant cooling become prevalent due to their potential ... -
Modelling of DC-DC converters with continuous input current for high power PV applications
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)Renewable Energy sources integration to the grid is becoming more vital due to the market share increase. The integration of PV farms, for instance, usually requires a DC-DC conversion stage to boost up the source voltage. ... -
Modelling of multiple biodiesel-emitted nitrogen oxides using ANN approach
( Elsevier , 2023 , Article)This research paper focuses on modelling of nitrogen oxides emitted by diesel engine for multiple biodiesel blends. A lot of research work has observed that the properties of biodiesel blends affect the nitrogen oxide ... -
Modelling Of The Basement Surface Of Siwa-Qattara Depression Area, Northern Western Desert Of Egypt
( Qatar University , 1990 , Article)Modelling study of the basement surface of Siwa-Qattara Depression area was done through the calculation of basement depth for 62 selected points using gravity interpretation methods. The constructed basement relief map ... -
Modelling of the flow behaviour of wrought aluminium alloys at elevated temperatures by a new constitutive equation
( Elsevier, Ltd , 2014 , Article)The hot working behaviour of an Al–0.7%Mg–0.4%Si (wt.%) aluminium alloy has been investigated by torsion testing in the 450–575°C temperature range. The behaviour of the alloy, in terms of equivalent stress vs equivalent ... -
MODELLING OF WHIPLASH TRAUMA; PARAMETRIC STUDY OF REAR-END COLLISION AND DEVELOPMENT OF HEAD-RESTRAINT SYSTEM
(2017 , Master Thesis)Whiplash is a common neck injury people usually suffer from after a rear car accident. Over the past decade, both engineers and physicians were trying to analyze the biomechanics of the injury to develop an effective ... -
Modelling speed behaviour in rural highways: Safety analysis of driving under adverse road-weather conditions
( PLOS , 2021 , Article)This study proposes a methodical approach to model desired speed distributions under different road-weather and traffic conditions followed by identification of road-weather conditions with potentially higher safety risks ... -
Modelling the adoption of agro-advisory mobile applications: a theoretical extension and analysis using result demonstrability, trust, self-efficacy and mobile usage proficiency
( Emerald Publishing , 2023 , Article)Purpose: This paper aims to explore the determinants of intention towards the use of agro-advisory mobile applications by extending the technology acceptance model (TAM) with addition of the following constructs: result ... -
Modelling the asymmetric responses of price level to oil price changes in Qatar
( Routledge , 2019 , Article)This paper inspects the asymmetric effect of oil price on prices level in Qatar. To achieve that, we proceed by employing a nonlinear autoregressive distributed lag (ARDL) approach on data during the period 1990Q1-2014Q4. ... -
Modelling the degradation of vibration characteristics of reinforced concrete beams due to flexural damage
( John Wiley & Sons, Ltd. , 2015 , Article)This paper presents an improved crack model incorporating non-linearity of flexural damage in concrete to reproduce changes in vibration properties of cracked reinforced concrete beams. A reinforced concrete beam model ... -
Modelling the dynamic pile-soil-pile interaction in a multi-layered half-space
( DC/ConfOrg , 2015 , Conference Paper)Within the context of railway ground-borne vibration, the dynamic pile-soil-pile interaction remains an area that has not been sufficiently investigated. Whilst a number of researchers have scrutinised the vibration response ... -
Modelling the Severity of Plastic Shrinkage in Cementitious Materials
( Qatar Univesrity Press , 2020 , Conference Paper)"Plastic shrinkage cracking in cement-based materials occurs between the mixing and the final setting of the mixture, where rapid evaporation of the mixed water is the main cause behind the phenomenon. The induced cracks ... -
Modelling the symmetric and asymmetric relationships between oil prices and those of corn, barley, and rapeseed oil
( Elsevier Ltd , 2019 , Article)This study, using linear and nonlinear Autoregressive Distributed Lag (ARDL) Models, investigates the dynamic linkages between oil prices and agricultural commodities. The results from the linear model show that barley, ... -
Modelling the treatment effect of renewable energy policies on economic growth: Evaluation from MENA countries
( Elsevier Ltd , 2017 , Article)This paper investigates the effects of renewable energy (RE) policies on economic growth in MENA countries. Using the propensity score matching methodology, our empirical analysis, conducted on a sample of 24 economies (17 ... -
Modelling the utilization rates of pedestrian crosswalks
( Elsevier , 2023 , Article)A zebra crossing is a form of pedestrian crossing provision point on roads that have significant volumes of traffic. It is one of the safety measures employed to reduce avoidable pedestrian-motorist conflicts and accidents ... -
Modelling trends in road crash frequency in Qatar State
( Inderscience Enterprises Ltd. , 2019 , Article)The data-based regression models are widely popular in modelling the relationship between the crash frequencies and contributing factors. However, one common problem usually associated with the classical regression models ... -
Modelling wave behaviour of elastic helical waveguides
( Springer Nature , 2020 , Conference Paper)Curved and straight waveguides are ubiquitous in engineering structures. For modelling these structures in the mid-frequency and high-frequency range, the knowledge of the wave behaviour can be greatly beneficial. This ... -
Modelling, analysis and performance improvement of an SRU's access request queue in multi-channel V2I communications
( Elsevier B.V. , 2015 , Conference Paper)This paper presents a concise yet comprehensive description of a multi-channel Vehicle-to-Infrastructure (V2I) communication system. Existing mathematical models for such a system overlook some of its essential behavioural ... -
Modelling, analysis, and implementation of a switched-inductor based DC/DC converter with reduced switch current stress
( John Wiley and Sons Inc , 2021 , Article)This paper proposes a technique for switch current stress reduction in a Switched Inductor DC-DC Boost Converter (SIBC). The proposed technique comes up with a low-cost design, high voltage conversion ratio with a less ... -
The Models of a General Component of a Distributed Computing Systems Based On Stochastic Petri Nets
( Qatar University , 1994 , Article)In this paper we propose models of a distributed computing system (DCS) based on general stochastic Petri nets (GSPN). We also propose the means to decrease the number of states. We indicate that the complexity of DCS ...
