تصفح University Publications حسب العنوان
السجلات المعروضة 1254 -- 1273 من 4358
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Mitigating Legal Risks in Construction Project Contracts: The Importance and the Applicability of Force Majeure Clauses
( Qatar University Press , 2023 , Conference Paper)Contracts in the construction industry are structured in a manner that splits the risks between different contracting parties; hence risk allocations within the contract affect the price and operation. As most Construction ... -
Mitotic Disturbances Induced By The Drug "Novalgin" In Allium Cepa Root Tips
( Qatar University , 1984 , Article)Growing root tips of Allium cepa are treated with seven concentrations of Novalgin ranging from 2.81 x 10 4 M to 1.5 x 10 4 M for 4, 8, 24,48 and 72 hours. The frequency of mitotic phases in the treated roots varies ... -
A Mixed Markovian Time Series Model
( Qatar University , 1997 , Article)We study a simple time series model the noise properties of the proposed model are derived. An algorithm based on the conditional mean and the conditional variance, for estimating the parameters of the proposed model is ... -
Mixed Model For Analyzing Variability in Mortality Rates Over Time With Reference To Qatar Mortality Data
( Qatar University , 1993 , Article)It was observed that variability in mortality rates over time in the state of Qatar is not of binomial nature. A method of analyzing these mortality rates in the heterogeneous population is presented in this paper. Three ... -
A Model For A Narrow-Cut Fractionating Column
( Qatar University , 1997 , Article)A mathematical model was developed to simulate the operation of a narrow-cut fractionating column. The model can calculate boiling point and dew point on the feed plate, the number of liquid and vapour moles, the enthalpy ... -
A Model Reference Adaptive Control Scheme with External Controllers
( Qatar University , 1989 , Article)A new model reference adaptive control scheme, suitable for linear multivariable discrete time systems, is proposed. A set of parameter adaptation algorithms are developed based on the validity of perfect matching between ... -
Modeling Airport Ground Access Mode Choice by Trip Purpose: Business vs. Personal Trips
( Qatar Univesrity Press , 2020 , Conference Paper)Air transportation traffic is increasing, and this results in newer and larger airport investments in outskirts of the cities. Thus, airport ground access is becoming an important topic to focus on. Indeed, there are many ... -
Modeling Asphalt Pavement Frictional Properties using Different Machine Learning Algorithms
( Qatar University Press , 2023 , Conference Paper)The objective of this work is to use some machine learning algorithms and test its efficiency in developing models to predict Locked Wheel Skid Trailer (LWST) values from Dynamic Friction Tester (DFT) and Circular Texture ... -
Modeling Short-Term Deflection of Reinforced Concrete Slabs using the Layered Approach
( Qatar University Press , 2023 , Conference Paper)This paper examines the short-term deflection of reinforced concrete slabs taking the tension-stiffening phenomenon into account. The main goal of this study is to develop a model that predicts the deflection of one-way ... -
Modeling Thermal Conductivity, Thermal Diffusivity and Specific Heat of Asphalt Concrete Using Beta Regression and Mixture Volumetrics
( Qatar University Press , 2023 , Conference Paper)The main objective of this paper is to develop predictive models using Beta regression for laboratory-prepared hot mix asphalt (HMA) specimens' thermal properties, including thermal conductivity (TC), thermal diffusivity ... -
Modelling and Analysis of Power Electronic Converters for EV Charging/Discharging for G2V, V2G and V2X Operations
( Qatar University Press , 2021 , Poster)The research work deals with the implementation of various chargers used for electric vehicles in the context of Qatar. These chargers are categorized as slow, fast, and super-fast chargers. The electric vehicles not only ... -
Modelling and Forecasting Property Types’ Price Changes and Correlations within the City of Manchester, UK
( Qatar University , 2015 , Article)Most of the research done on real estate markets to date has concentrated on aggregate real estate price indices and correlations between regional properties assets. Previous research also shows that the residential real ... -
Modelling and simulation of flexible assembly systems A petri net approach
( Qatar University , 1995 , Article)This paper presents an approach towards constructing a class of Placc/TYansition nets for modelling, simulation and control of processes occurring in the Flexible Assembly Systems. Its objective lies in the formal statement ... -
Modelling Catchments in Qatar to Assist in Operations
( Qatar Univesrity Press , 2020 , Conference Paper)Qatar is experiencing unprecedented growth and infrastructure is being developed at a rapid pace. The infrastructure is served by storm water systems which are under development and need to be resilient in case of storms. ... -
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 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 ... -
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 ... -
Modern and Ancient Sabkha Environments -Boron Isotopes as Discriminators of Facies and Uses in Base Metal Exploration
( Qatar University , 1999 , Article)Boron isotopic analyses were performed on samples of stromatolite representative of intertidal conditions within modem and Early Proterozoic sabkhas. The intertidal zone at Al-Khiran in southern Kuwait shows a range of 5^ ... -
Molecular characterization of influenza virus in intestines and its effect on intestinal microbiota
( Qatar University Press , 2020 , Poster)Background: Influenza predominantly causes respiratory diseases; however, gastrointestinal symptoms are not uncommonly reported, particularly among high risk groups. Influenza virus RNA has been also detected in stools of ... -
Moment Approximation of a Money Return Model Employing a Birth and Death Diffusion Process with General External Effect
( Qatar University Press , 2022 , Article)This paper derives moment approximation as well as the mean and the variance of a money return model within an important diffusion return process by considering the stochastic analogs of classical differences and differential ...
