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A cost effective approach to design of energy efficient residential buildings

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Frontiers of Architectural Research 2022年第2期11卷 297-307页

作者： Khaled Bataineh ayham Al Rabee Department of Mechanical Engineering Jordan University of Science and TechnologyIrbid22110Jordan

The objective of this study is to identify cost-optimal efficiency packages at several levels of building energy savings.A two-story residential building located in Jordan is selected as a case *** software is used to predict the annual energy usage of a twostory residence in Irbid,***-time experimental data from a single isolated controlled room was used to verify the proposed *** addition to energy analysis,the economic,environmental,and social benefits of the proposed design have been *** sequential search optimization approach is used to estimate the minimum cost of the building while considering various design *** addition,the impact of various energy conservation techniques on residential buildings is assessed,and the payback period for each program is ***,the optimal combination of design to achieve energy efficiency measures has been identified in several climate *** simulations results predict that the annual electricity consumption can be reduced up to 50%if the proper combinations of energy conservation measures are selected at the lowest *** payback period is 9.3 ***,energy efficiency measures can lead to a total of 9470 jobs/year job *** study provide practical framework to link between energy performance criteria and economic goals of *** the energy performance requirements to economic targets provides guidelines for homeowners,contractors,and policymakers for making a suitable decision regarding the retrofitting of existing residential *** study focuses on developing new methodologies that support minimizing costs during a building’s lifecycle while maximizing environmental benefits which can not be identified by a series of parametric analyses using individual energy-efficient measures.

关键词： Mediterranean climate Energy conservation measures Residential building Energy simulation Design optimization

Outcomes of gout in patients with cirrhosis:A national inpatient sample-based study

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World Journal of Hepatology 2023年第2期15卷 303-310页

作者： ayham Khrais Aaron Kahlam Ali Tahir Amjad Shaikh Sushil Ahlawat Division of Medicine Rutgers New Jersey Medical SchoolNewarkNJ 07103United States Division of Medicine St.Luke’s University Health NetworkBethlehemPA 18015United States Division of Gastroenterology and Hepatology Rutgers New Jersey Medical SchoolNewarkNJ 07103United States

BACKGROUND Hyperuricemia is a prerequisite for the development of *** serum uric acid(UA)levels result from either overproduction or decreased excretion.A positive correlation between serum UA levels,cirrhosis-related complications and the incidence of nonalcoholic fatty liver disease has been established,but it is unknown whether hyperuricemia results in worsening cirrhosis *** hypothesize that patients with cirrhosis will have poorer gout *** To explore the link between cirrhosis and the incidence of gout-related *** This was a cross-sectional *** national inpatient sample was used to identify patients hospitalized with gout,stratified based on a history of cirrhosis,from 2001 to 2013 via the International Classification of Diseases,Ninth Revision,Clinical Modification *** outcomes were mortality,gout complications and joint ***χ^(2)test and independent t-test were performed to assess categorical and continuous data,*** logistic regression was used to control for confounding *** Patients without cirrhosis were older(70.37±13.53 years vs 66.21±12.325 years;P<0.05).Most patients were male(74.63%in the cirrhosis group vs 66.83%;adjusted P<0.05).Patients with cirrhosis had greater rates of mortality(5.49%vs 2.03%;adjusted P<0.05),gout flare(2.89%vs 2.77%;adjusted P<0.05)and tophi(0.97%vs 0.75%;adjusted P=0.677).Patients without cirrhosis had higher rates of arthrocentesis(2.45%vs 2.21%;adjusted P<0.05)and joint injections(0.72%vs 0.52%;adjusted P<0.05).CONCLUSION Gout complications were more common in *** without cirrhosis had higher rates of interventions,possibly due to hesitancy with performing these interventions given the higher complication risk in cirrhosis.

关键词： Gout Cirrhosis Hyperuricemia Uric acid Nonalcoholic fatty liver disease Arthropathy

Novel Solution Based on Face Recognition to Address Identity Theft and Cheating in Online Examination Systems

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Advances in Internet of Things 2014年第2期4卷 5-12页

作者： ayham Fayyoumi Anis Zarrad Department of Computer Science and Information Systems Prince Sultan University (PSU)Riyadh Saudi Arabia Department of Information Systems Al Imam Mohammad IBN Saud Islamic University (IMSIU) RiyadhSaudi Arabia

The main objective of this research is to provide a solution for online exam systems by using face recognition to authenticate learners for attending an online exam. More importantly, the system continuously (with short time intervals), checks for learner identity during the whole exam period to ensure that the learner who started the exam is the same one who continued until the end and prevent the possibility of cheating by looking at adjacent PC or reading from an external paper. The system will issue an early warning to the learners if suspicious behavior has been noticed by the system. The proposed system has been presented to eight e-learning instructors and experts in addition to 32 students to gather feedback and to study the impact and the benefit of such system in e-learning environment.

关键词： Online Exam Face Recognition Authentication Exam Cheating

Mobile Based Learning and Examination: Students and Instructors Perceptions from Different Arab Countries

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Journal of Software Engineering and Applications 2013年第12期6卷 662-669页

作者： ayham Fayyoumi Heba Mohammad Hossam Faris Department of Business Information Technology The University of Jordan Amman Jordan Department of Information Systems Al-Imam Muhammad ibn Saud Islamic University Riyadh KSA

The online education market is expanding both globally and locally;Arab countries are paying special attention to the growth of this sector. Reports showed that the e-learning market arrived at $27.1 billion in the year 2009 and is expected to surpass $49.6 billion by the year 2014. This paper presents and surveys the perception of students and instructors regarding mobile learning and mobile examination system in some Arab countries. Many universities in the Arab world are under progress in the implementation of this new technology and many have already implemented it. Strong tools are required to improve e-learning system of education. This research supports the transition of education from conventional methods to m-learning and m-exam systems. The purpose of this research is to study the perception of both instructors and students regarding mobile learning and mobile examination systems. The introduction of such systems to the educational process requires people involved to have basic technical skills and to be aware of the benefits of such systems. Results showed different perspectives from three countries;also showed that online examination systems could be very helpful, but many factors should be considered and they should be implemented carefully to guarantee the successful adoption, fairness and reliability.

关键词： m-Learning Mobile Based Exam System m-Examination Fairness Instructors Attitude towards m-Exam Students Perception of m-Exam

Hybrid Enterprise Modelling: Integrating Modelling Mechanisms for Socio-Technical Systems Analysis and Design

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Journal of Software Engineering and Applications 2014年第1期7卷 6-13页

作者： Amjad Fayoumi Pericles Loucopoulos ayham Fayyoumi Department of Informatics and Telematics Harokopio University of Athens Athens Greece Department of Information Systems Al-Imam Muhammad ibn Saud Islamic Uni- versity Riyadh KSA School of Business and Economics Loughborough University Loughborough UK

Nowadays, Model Driven Development (MDD) is a powerful technique for modelling complex systems and also for aligning business and information technology (IT), giving designers the ability to execute business models as they are intended to be run and behaved in the business environment. The Object Management Group (OMG) adopted many business standards into the Model Driven Architecture (MDA) environment e.g. Semantics of Business Vocabulary and Business Rules (SBVR), the Business Motivation Model (BMM), Business Process Modelling and Notation (BPMN) and Organisational Structure Model (OSM). These can work together to model different aspects of the enterprise at the business level. However, these models lack reasoning and dynamic simulation: there is no significant way to simulate discrete and continuous time system behaviour or to build arguments for reasoning about the design options within the OMG specifications. In this paper we propose an approach to overcoming this problem, by integrating a set of modelling tools into one single platform, taking advantage of meta-modelling techniques to integrate new tools with the OMG specifications in a model driven environment. The prospective framework should be able to tackle advanced analysis and design problems by intertwining design, reasoning and simulation to achieve a higher level of design maturity through implementing the desired scenario.

关键词： Enterprise Modelling Model Driven Development Business Modelling Models Integration Complex and Dynamic Enterprise Modelling Framework

Probabilistic Analysis of Reinforced Concrete Carbonation Depth

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Materials Sciences and Applications 2013年第3期4卷 205-215页

作者： Azhar Badaoui M’hammed Badaoui fattoum Kharchi Camp Supprt Services Integrated Paris France Ecole Nationale Supérieure des Travaux Publics Cité Sidi Garidi Kouba Algiers Algeria Université des Sciences et de la Technologie Houari Boumedienne Laboratoire Bati dans l’Environnement Algiers Algeria.

Concrete carbonation relates to the diffusion of CO2 inthe atmosphere through the concrete pores and to the dissolution of the hydrates. A great deal of uncertainty still remains in this subject as a result of the random nature of the infiltration of these aggressive agents as well as the material and structural properties of reinforced concrete. Consequently, in order to determine the degradation of these structures with time, it is necessary to approach the subject from a probabilistic point of view that it considers the uncertainties involved with the geometrical dimensions of these structures, with the material characteristics and with the environment and the subsequent deterioration that it provokes. The aim of this paper is the evaluation of carbonation depth (Xc) from a probabilistic analysis, focusing specifically on the study of the randomness of the most influential parameters on the reinforced concrete carbonation.

关键词： Carbonation Depth Lognormal Random Variable Relative Humidity Water/Cement Ratio Carbonic Gas CO2

Effect of Clay Fines on the Behavior of Self-Compacting Concrete

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Engineering（科研） 2013年第2期5卷 213-218页

作者： Zine Eddine Abib Haifa Gaher-Abib fattoum Kharchi 不详

The technology of concrete has significantly increased in recent years through the use of super plasticizer and availability of mineral additions. One of the most recent materials used as an additive, replacing a portion of cement in concrete, is fine clay fired at a temperature of 800℃ to 900℃. This research is based on trials that complied with artificial pozzolan (waste crushed brick), and their effect on the rheological and mechanical behavior of mortar. The addition of 5% of a waste crushed brick has helped not only to improve the strength (tensile and compression), but also to foster a better rheological behavior in terms of fluidity and stability, with a low heat of hydration compared to control. However, tests of optimizing the content of self-compacting concrete (SCC) in coarse aggregates, sand and binder, led us to confirm that the combined mass of more optimal (better workability and stability) is that based on low in volumetric percentage of sand/paste with a granular skeleton richest gravel low dimensions (2/3 of G 3/8 and 1/3 of G 8/15).

关键词： Waste Crushed Brick Pozzolanic Activity Heat of Hydration Workability Strength Self Compacting Concrete

Magnetization of GaAs Parabolic Quantum Dot by Variation Method

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Journal of Physical Science and Application 2016年第2期6卷 39-46页

作者： ayham SHAER Mohammad K. ELSAID Musa ELHASAN Physics Department Faculty of Science An-Najah National University Nablus West Bank Palestine

The magnetization of two interacting electrons confined in a quantum dot presented in a magnetic field had been calculated by solving the relative Hamiltonian using variational method. We had investigated the dependence of the magnetization on temperature, magnetic field strength and confining frequency. The singlet-triplet transitions in the ground state of the quantum dot spectra and the corresponding jumps in the magnetization curves had been shown. The comparisons show that our results are in very good agreement with reported works.

关键词： Magnetization variational method quantum dot.

Carbonic Gas Randomness Effect on Reinforced Concrete Carbonation

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Engineering（科研） 2012年第1期4卷 6-10页

作者： Azhar Badaoui M’hammed Badaoui fattoum Kharchi 不详

This paper deals the randomness effect of the pressure of carbonic gas on the carbonation phenomenon of the reinforced concrete. This analysis concentrates on the evaluation of carbonation depth (Xc) and the carbonation time (T1) which is the time necessary so that the face of carbonation arrives until the reinforcement from a probabilistic analysis. Monte Carlo simulations are realized under the assumption that the carbonic gas on the surface of the concrete is random variable with a log-normal probability distribution.

关键词： Carbonation Depth Carbonation Time Lognormal Random Variable Carbonic Gas CO2 Relative Humidity Water/Cement Ratio