تصفح حسب المؤلف "Al-Khalifa, Khalifa"
السجلات المعروضة 1 -- 17 من 17
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Age replacement models: A summary with new perspectives and methods
( Elsevier Ltd , 2017 , Article Review)Age replacement models are fundamental to maintenance theory. This paper summarizes our new perspectives and hods in age replacement models: First, we optimize the expected cost rate for a required availability level and ... -
An empirical study on lean awareness and potential for lean implementations in Qatar industries
( Springer-Verlag London Ltd , 2016 , Article)In this study, an investigation on the level of recognition of lean concepts, principles, tools, and techniques in different industrial sectors in Qatar was carried out. The general aim of the study was to determine lean ... -
Applied Internet of Things IoT: Car monitoring system for Modeling of Road Safety and Traffic System in the State of Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)One of the most interesting new approaches in the transportation research field is the Naturalistic Driver Behavior which is intended to provide insight into driver behavior during everyday trips by recording details about ... -
Blockchain for the internet of vehicles: A decentralized IoT solution for vehicles communication using ethereum
( MDPI AG , 2020 , Article)The concept of smart cities has become prominent in modern metropolises due to the emergence of embedded and connected smart devices, systems, and technologies. They have enabled the connection of every “thing” to the ... -
Distribution-Free Adaptive Step-Down Procedure for Fault Identification
( Wiley , 2016 , Conference Paper)Identifying the faulty variables of the out-of-control signal in high-dimensional process is an important problem for quality control areas. Even though there have been several procedures for fault variable identifications, ... -
Double EWMA-Based Polynomial Quality Profiles Monitoring
( Wiley , 2016 , Conference Paper)Profile monitoring is useful whenever the quality is described by a relationship between a response and one or more of explanatory variables. It is conventional to refer to this relationship as Quality Profile. Despite the ... -
Driver Drowsiness Detection Model Using Convolutional Neural Networks Techniques for Android Application
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)A sleepy driver is arguably much more dangerous on the road than the one who is speeding as he is a victim of microsleeps. Automotive researchers and manufacturers are trying to curb this problem with several technological ... -
First and Last Triggering Event Approaches for Replacement with Minimal Repairs
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)To make effective use of a running system, this paper proposes that, when replacement times could be scheduled at a planned time T of operation, and at a number N of minimal repairs, the newly proposed approach of whichever ... -
In-depth Analysis of Pedestrian Safety in the State of Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Pedestrian safety is of a serious concern as it includes children and the aged population. From the Global status report on road safety in 2015 by World Health Organization (WHO), it can be seen that pedestrian fatalities ... -
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 ... -
Preventive replacement policies with aging failure and third-part damage
( SciTePress , 2016 , Conference Paper)In general, corrosions, degrading the mechanical strength of pipelines gradually with its age in a stochastic way, is the predominant cause of pipeline leaks. In addition, the third-part damage is the leading cause of ... -
Reliability estimation of load sharing capacity-c-out-of-n pairs:G Balanced system
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In many cases, systems are required to provide a specified capacity such as the case of power distribution system. A system fails when its capacity does not meet the required minimum capacity. In this paper, we investigate ... -
Replacement Policies for Periodic Damage Models
( World Scientific Publishing Co. Pte Ltd , 2017 , Article)A new periodic damage model is proposed in this paper, where the damage produced by shocks is only measured at periodic times, without considering the stochastic shocks and the cumulative process of damage in discrete ... -
Replacement policies for periodic damage models
( International Society of Science and Applied Technologies , 2016 , Conference Paper)A new periodic damage model for preventive replacement policies is proposed in this paper, where the damage produced by shocks is only measured at periodic times, without considering the mathematical models of the stochastic ... -
SERVQUAL DIMENSION ANALYSIS AT HBKU STUDENTS HOUSING FACILITIES
(2017 , Professional Masters Project)In this competitive era, the improvement of any organization robustly relies on increasing their customer satisfaction about the provided services. It is more important to provide the customers with what they want especially ... -
Variable Selection-based Multivariate Cumulative Sum Control Chart
( John Wiley and Sons Ltd , 2017 , Article)High-dimensional applications pose a significant challenge to the capability of conventional statistical process control techniques in detecting abnormal changes in process parameters. These techniques fail to recognize ... -
What is Middle Maintenance Policy?
( John Wiley and Sons Ltd , 2016 , Article)The main purpose of this paper is to propose several new maintenance policies that can be performed at suitable middle times for trivariate preventive maintenance scenarios. Firstly, characteristics and limitations for the ...
