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Search Results: 1 - 10 of 217 matches for " Atef Obeidat "
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Burst Error Correction Method Based on Arithmetic Weighted Checksums  [PDF]
Saleh Al-Omar, Atef Obeidat
Engineering (ENG) , 2012, DOI: 10.4236/eng.2012.411098
Abstract: In this paper a new approach for increasing the performance of burst error correction that occurs during data transmission in low-frequency channels with pulse-code modulation is proposed. The specific technique is based on the weighted checksum which is computed with arithmetic operations. It is shown that the solution proposed not only guarantees the correction of any single error burst but it also lowers the computational complexity so that procedure correction time does not depend on controlled data block length. Finally, the use of the algorithm is illustrated via the thorough presentation of an example of erroneous data transmission.
Exploring the Relationship between Corporate Social Responsibility, Employee Engagement, and Organizational Performance: The Case of Jordanian Mobile Telecommunication Companies  [PDF]
Bader Yousef Obeidat
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2016, DOI: 10.4236/ijcns.2016.99032
Abstract: The aim of this research is to explore the relationship between corporate social responsibility, employee engagement, and organizational performance in Jordanian mobile telecommunication companies. A total of 350 questionnaires containing 37 items?were used to collect information from the respondents. Multiple and simple regression analyses were conducted to test the research hypotheses. Results of the current study revealed that corporate social responsibility (both internal and external) and employee engagement (vigor, absorption, and dedication) have a significant positive relationship with organizational performance. Also, the results revealed that there is a significant positive relationship between corporate social responsibility (internal CSR and external CSR) and employee engagement. The Baron and Kenny mediation model and Sobel test were used to test whether employee engagement mediated the relationship between corporate social responsibility and organizational performance. The results showed that employee engagement fully mediated the relationship in a significant way. The results of the current study have many managerial implications for mobile telecommunication companies. In order to enhance organizational performance, decision makers must work on creating and maintaining an efficient corporate social responsibility agenda, which would increase employees’ engagement in their work which will lead to improved performance outcomes.
The Effect of Strategic Orientation on Organizational Performance: The Mediating Role of Innovation  [PDF]
Bader Yousef Obeidat
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2016, DOI: 10.4236/ijcns.2016.911039
Abstract: Survival in today’s dynamic environment requires organizations to have superior performance compared to competitors. In order to achieve this superior performance, this study aimed to examine the effect of both strategic orientation and innovation on organizational performance. It also examined whether innovation acted as a mediator between strategic orientation and organizational performance. Data were gathered from the three telecommunication companies that exist in Jordan. The data were then analysed using Structural Equation Modelling (SEM) and the results revealed that strategic orientation had a significant effect on innovation but not on organizational performance. It was also found that innovation significantly affected organizational performance. Finally, the results indicated that innovation mediated the path between strategic orientation and organizational performance, but only partially.
Characteristics and Genesis of the Groundwater Resources Associated with Oil Shale Deposits in the Azraq and Harrana Basins, Jordan  [PDF]
Ali M. Obeidat, Omar Rimawi
Journal of Water Resource and Protection (JWARP) , 2017, DOI: 10.4236/jwarp.2017.92010
Abstract: Upper cretaceous and lower tertiary formations groundwater aquifers are associated with huge reserves of oil shale deposits in Harrana and Azraq Basins are evaluated in terms of water qualities and hydrochemical processes. The oil shale deposits are found within the Muwaqqar Chalk Marl Formation. The Muwaqqar Chalk Marl Formation represents the intermediate formation between the Lower Aquifer Amman Silicified Limestone and the overburden, which represents the overlying Upper Aquifers of Um Rijam Chalk and Wadi Shallala Chalk. This study aimed to improve the understanding of Muwaqqar Chalk Marl Formation as a sealing potential based on water quality and hydrochemical data of the different aquifers. Sixty water samples were collected from Amman Silicified Limestone Aquifer, High Grade Zone of Muwaqqar Chalk Marl Formation and from the overburden of Um Rijam Chalk and Wadi Shallala Chalk aquifers. The evaluations of the main hydrochemical processes affecting the groundwater quality were carried out by interpreting the ionic relationships and the water quality types using Piper and Durov diagrams. Comprehensive statistical analyses (Factor and Cluster Analyses) were conducted on the water quality parameters. The factor analyses can extract four factors from the water quality parameters of the Harrana wells Area-1 and for Azraq wells in Area-2. These factors are used to interpret the different geochemical processes affecting the groundwater quality parameters. Cluster analyses divided the Harrana wells into three groups. Cluster I included 26 wells with minimum mean concentrations of cations and anions, while cluster III included the wells with the highest concentrations in the water quality parameters. Cluster II included eight wells with intermediate concentrations. Azraq Area-2 wells are clustered into three groups. Cluster I includes seven wells with lowest water quality (highest concentrations); cluster II includes 12 wells and exhibits the lowest concentrations of ions and cluster III includes five wells that show intermediate ions concentrations. The interpretation indicated that the primary factors controlling the groundwater chemistry of Azraq and Harrana appeared to be dissolution processes of the carbonate rocks containing traces of evaporitic minerals, ion exchange and reversal ion exchange processes. Moreover, the water quality in the study areas is not suitable for drinking purposes.
Online Diagnosis and Monitoring for Power Distribution System  [PDF]
Atef Almashaqbeh, Aouda Arfoa
Energy and Power Engineering (EPE) , 2012, DOI: 10.4236/epe.2012.46066
Abstract: Recently, power distribution system is getting larger and more complex. It is very difficult even for the experts to diagnosis and monitoring to made best action. This motivated many researchers to investigate power systems in an effort to improve reliability by focusing on fault detection and classification. There have been many studies on problems but the results are not good enough for applying to real power system. In this paper, a new protective relaying framework to diagnosis and monitoring faults in an electrical power distribution system with. This work will extract fault signatures by using ellipse fit using least squares criterion during fault condition. By utilizing principal component analysis methods, this system will identify, classify and localize any fault instantaneously.
The Use of GIS, Remote Sensing and Shannon’s Entropy Statistical Techniques to Analyze and Monitor the Spatial and Temporal Patterns of Urbanization and Sprawl in Zarqa City, Jordan  [PDF]
Atef F. Al Mashagbah
Journal of Geographic Information System (JGIS) , 2016, DOI: 10.4236/jgis.2016.82025
Abstract: The aim of this study is to understand and quantify the urban growth and trend in Zarqa city during the period 1990 to 2014 and to produce land use and cover map for the studied area through the use of the GIS and remote sensing techniques with Shannon’s Entropy statistical method. For this purpose, three Landsat images were used for land use classification by using supervised maximum likelihood classification techniques to extract and assess the changes of urban lands. The results indicated that the urban areas in Zarqa city increased by 22.15% in the period from 1990 to 2005 and 14.86% from 2005 to 2014, with a rate of expansion of 0.96 and by 1.31 km2/ year for the two time periods respectively. The entropy value increased from 1.20 in the first period to 1.38 in the second, while the entropy value for the NE, NW, SE and SW zones showed high values, which confirmed that urban expansion and sprawling had existed in the past twenty four years in the study area. Urban expansion and sprawl cause different impacts on the natural, economic, and aesthetic aspects of the city which lead and guide government officials and planners to understand and monitor current growth and visualize future growth.
Assessment of Flash-Flood Hazard in Arid Watersheds of Jordan  [PDF]
Yahya Farhan, Atef Ayed
Journal of Geographic Information System (JGIS) , 2017, DOI: 10.4236/jgis.2017.96045
Abstract: Flash flood hazard initiated by heavy rainstorms is common in arid Jordan, and often has induced immense damage to life and infrastructures. The current study presents a flash flood assessment for Wadi Rajil (northern Jordan) and Wadi Wuheida (southern Jordan) watersheds using ASTER DEM, GIS, and geomorphic field observation. A total of 23 morphometric parameters of paramount relation to flash flood risk estimation were extracted and calculated using ASTER DEM, GIS, and mathematical formulae developed for this purpose. Two methods were employed to assess flash floods and to generate flooding risk susceptibility maps. The first method is El-Shamy’s approach, and the second is the morphometric hazard degree assessment method. Consequently, sub-basins with high and extreme flooding susceptibility were demarcated and displayed spatially using GIS. The maps so produced are meant to help planners and decision makers to devise appropriate plans to mitigate harmful flooding impacts, and to deal with flooding hazards.
The Effectiveness of Video Distraction on Children Preoperative Anxiety: An Integrative Literature Review  [PDF]
Doa’a Dwairej, Hala Obeidat, Inaam Khalaf
Open Journal of Nursing (OJN) , 2018, DOI: 10.4236/ojn.2018.83015
Background: Children who undergo a day case surgery experience high levels of preoperative anxiety. Preoperative anxiety interferes with anesthesia induction compliance and is associated with many short and long term postoperative complications. Recently, video distraction intervention has been evaluated for its anxiolytic effects in preoperative children. Aim: The aim of this integrative review was to demonstrate the varying methodological approaches utilized to evaluate the effectiveness of a video distraction intervention in reducing preoperative anxiety in children undergoing day case surgery. Methods: A total of 8 articles, meeting the inclusion criteria, were evaluated and included. Findings: The eight studies investigating the effect of video distraction on children preoperative anxiety concluded that video distraction was significant in controlling children preoperative anxiety. Four of the eight studies (50%), investigated video distraction effectiveness against pharmacological comparisons and demonstrated superior or equal anxiolytic effect of video distraction on different points along the surgical continuum. Three of the eight studies compared video distraction against parental presences and video distraction showed superior anxiolytic effect. Three of the eight studies evaluated the effect of video distraction on anesthesia induction compliance and emergence delirium. A significant effect on anesthesia induction was demonstrated while non-significant effect on emergence delirium was documented. Conclusion: Video distraction is a safe, time and cost effective non pharmacological anxiolytic intervention. It can be provided by nurses to control children high level of anxiety before surgery
Assessment of Surface Water Quality of King Abdullah Canal, Using Physico-Chemical Characteristics and Water Quality Index, Jordan  [PDF]
Atef Faleh Al-Mashagbah
Journal of Water Resource and Protection (JWARP) , 2015, DOI: 10.4236/jwarp.2015.74027
Abstract: The main aim of this research is to evaluate the water quality of King Abdullah Canal (KAC) using the water quality index method (WQI). For this purpose, nine different sampling sites were used in the calculation of WQI during the period of January to December 2012. The samples were analyzed for various physico-chemical parameters such as pH, electrical conductivity, total suspended solids, ions of Sodium, Potassium, Calcium, Magnesium, Fluorite, Chloride, Sulfate, Bicarbonate, and Nitrate in different seasons (winter, spring, summer and autumn). The analyzed results (by WQI method) have been used to suggest models for predicting water quality. The relative weight assigned to each parameter has a range from 1 to 5, based on the important parameters for drinking purposes. The computed WQI for the nine samples has a range from 46.66 to 542.08. The analysis reveals that the water quality status of the study area is varying from excellent to good in the upper part of the canal and from poor to very poor in the lower part of the canal. Comparing with the World Health Organization (WHO) and Jordan Standard (JS), the results indicate that the lower part of the canal is polluted. Therefore, the water is not safe for domestic use and needs further treatment, especially in the lower part of the canal.
Evaluation of Solar Energy Potential for the Red Sea Project, Kingdom of Saudi Arabia  [PDF]
Ahmad Siouti, Atef Belhaj Ali
Natural Resources (NR) , 2019, DOI: 10.4236/nr.2019.104007
Abstract: There has been extreme utilization of petroleum derivatives in recent decades for the generation of electrical vitality, which is contaminating nature in a regularly expanding approach to respond to the exponential demand for electrical power. In light of the essential vision of Saudi Arabia’s government towards the fractional change of reliance on oil as a national wellspring of economy, there is consideration for dependence on resources available inside the country, especially the potentials of renewable sources as alternatives. Saudi Arabia appreciates its geographical advantage inside the sun-belt zone, which has the most impressive sun-situated radiation total on earth. It is a correlative ideal position to consider interest in this valuable asset, through which it can achieve its vision by virtue of its promising whole deal prospects. This study highlights an approach for creating sunlight-based maps that examines the intensity of sun-radiation and its viability to deliver power. The system is to record the measures of sunlight radiation from several allocated data acquisition sites over the study area and balance them with the standard count, and later, make a sun-map in light of the yield. Likewise, the study will register the rate of energy from sun-situated radiation for the area and make preliminary proposals for the achievement of this test.
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