1,011 research outputs found
The impact of financial development on the economic growth of selected Arab countries
Financial development has become a subject of great interest in the Arab countries. This development plays an important role in mobilizing domestic savings and directing it towards investment channels, according to its ability to employ capital on the one hand, and its linkage to market , on other hand the rise of phenomenon of assessment of foreign exchange rates and interest rates at the international level, which has often led to the absence of any obstacles to capital flows in a variety of credit tools and savings and foreign currencies ,especially that the financial development Following the economic developments and the expansion of consumer and investment spending.
The research checks an effect of financial development on the economic growth in selected Arab countries (Jordan, Egypt, Algeria, Tunisia, Saudi Arabia and Bahrain) during the period 2000-2017
Factors Affecting Egyptian Journalism And Mass Communication Faculty Members Research Productivity
Wearable-Based pedestrian localization through fusjon of inertial sensor measurements
Hoy en día existe una gran demanda de sistemas de navegación personales integrados en servicios como gestión de desastres para personal de rescate. También se demandan sistemas de navegación personales como guía en grandes superficies, por ejemplo, hospitales, aeropuertos o centros comerciales. En esta tesis doctoral los escenarios estudiados son interiores y urbanos. La navegación se realiza por medio de sensores inerciales y magnéticos, idóneos por su amplia difusión, tamaño y peso reducido y porque no necesitan infraestructura. Se llevarán a cabo investigaciones para mejorar los algoritmos de navegación ya existentes y cubrir determinados aspectos aún no resueltos.
En primer lugar se ha llevado a cabo un extenso análisis sobre los beneficios de usar medidas magnéticas para compensar los errores sistemáticos de los sensores inerciales, así como su efecto en la estimación de la orientación. Para ello se han usado medidas de referencia con valores de error conocidos combinando diferentes distribuciones de campos magnéticos. Los resultados obtenidos quedan respaldados con medidas realizadas con sensores reales de medio coste. Se ha concluido que el uso de medidas magnéticas es beneficioso porque acota errores en la orientación. Sin embargo, los escenarios bajo estudio suelen presentar campos magnéticos perturbados, lo que provoca que el proceso de estimación de errores sea prohibitivamente largo.
En esta tesis doctoral se proponen algoritmos alternativos para el cálculo del desplazamiento horizontal del usuario, que han sido comparados con respecto a los ya existentes, ofreciendo los propuestos un mejor rendimiento. Además se incluye un innovador algoritmo para calcular el desplazamiento vertical del usuario, haciendo por primera vez posible obtener trayectorias en 3D usando solamente sensores inerciales no colocados en el zapato.
Por último se propone un novedoso algoritmo capaz de prevenir errores de posición provocados por errores de rumbo. El algoritmo está basado en puntos de referencia automáticamente detectados por medio de medidas inerciales. Los puntos de referencia elegidos para los escenarios cubiertos son escaleras y esquinas, que al revisitarse permiten calcular el error acumulado en la trayectoria. Este error es compensado consiguiendo así acotar el error de rumbo. Este algoritmo ha sido extensamente probado con medidas de referencia y medidas realizadas con sensores reales de medio coste. La compensación de este error se adapta a las características del sistema de navegación personal
Media diversity and public deliberation in Egypt: the case study of Law 107 of year 2013 on organizing the right to public meetings, marches, and peaceful protests
This research aims to identify the extent to which ownership, workforce, demography, and viewpoints in Egyptian private satellite stations are diverse and whether the existing levels of media diversity lead to efficient televised public deliberation. The research samples “Al-Hayat TV ‚ “CBC Egypt , and “Al-Nahar TV , which are the television stations with the highest viewership in Egypt. Egypt\u27s law 107 of year 2013 on organizing the right to public meetings, marches, and peaceful protests is chosen as a case study of a policy issue that is tackled through televised deliberations. In-depth interviews and qualitative content analysis are used to answer the research\u27s main question and sub-questions. The results shows that Egyptian private stations are owned by multiple owners, but such multiplicity does not meet the complete criteria of ownership diversity. Demographic and viewpoint diversities are missing, while workforce in these stations is partially diverse. These levels of ownership, workforce, demographic, and viewpoint diversities hinder most of the components that shape televised public deliberation
SEPCS: Prolonging Stability Period of Wireless Sensor Networks using Compressive Sensing
Compressive sensing (CS) is an emerging theory thatis based on the fact that a small number of linear projections of asparse data contains enough information for reconstruction. CScan break through the asymmetry between the data acquisitionand information processing that makes a great challenge to therestriction energy and computation consumption of the sensornodes. In this paper, we propose a routing protocol called SEPCSfor clustered wireless sensor networks (WSNs) using CS. SEPCScombines a new clustering strategy with CS theory for prolongingstability period and network lifetime in WSNs. Our simulationresults show that the proposed protocol can effectively prolongthe stability period and network lifetime compared with existingprotocols
A Survey about Acquisition System Design for Myoelectric Prosthesis
According to the World Health Organization (WHO), 30 million people are in
need of prosthetic and orthotic devices. Some people are born with this limb
loss, while others lose limbs due to diseases such as Cancer, diabetes, and
work accidents. Additionally, limb amputation is among the most severe and
heavily reported injuries among veterans during war. The medical applications
of integrated circuit technology have recently made significant advances, thus
improving human quality of life. Moreover, the use of microelectronics
integration dominates a lot of medical applications, especially portable and
wearable battery-operated devices. Thus, the objective of this report is to
provide the reader with the basic understanding of integrated solutions for
controlling prosthetic limbs
Sorption of Cd(II) and Pb(II) ions by nanolimestone from underground water samples from Tehama region of Saudi Arabia
333-340Powdered nano limestone (NLS) has been investigated as an in-expensive adsorbent for removal of heavy toxic metals such as cadmium and lead from aqueous solutions. Batch experiments has been carried out, the favorable pH for maximum metals adsorption is found to be 6.8 for both. The surface area has increased in case of NLS up to 6.2 m2/g. The adsorption capacity calculated by Langmuir equation is found to be 75.1 mg/g for Cd (II) and 68.4 for Pb (II) ions at pH 6.8. The adsorption capacity has increased with temperature and the kinetics followed a First-order rate equation for both. The enthalpy change (ΔH0) is 25.4 J mol−1 for Cd (II) and 20.8 J mol−1 for Pb (II), while entropy change (ΔS0) is 41.6 J K−1 mol−1 for Cd (II) and 38.7 J K−1 mol−1 Pb (II), which indicate that adsorption process is endothermic and spontaneous in nature. About 25 collected samples of groundwater has been tested and found to be contaminated with cadmium and lead elements with different rates, with using NLS as adsorbent able to remove both metals from the samples. All of the results suggested that the NLS is excellent nano-adsorbents for cadmium and lead contaminated water samples
Inter-Relationship between Global Competitiveness and Human Development- Analytical Study of Selected Countries
يهدف البحث إلى دراسة العلاقة المتبادلة بين مؤشرات التنافسية الدولية ومؤشرات التنمية البشرية لمجموعة مختارة من الدول (منخفضة الدخل، متوسطة الدخل، ومرتفعة الدخل) وباستخدام اختبار سببية غرانجر، واختبار متجه الانحدار الذاتي، حيث أظهرت نتائج اختبار السببية أن هناك علاقة سببية بين التنافسية الدولية والتنمية البشرية. وقد وجدنا أن مؤشرات التنافسية الدولية كان تأثيرها واضحاً على دليل مؤشرات التنمية البشرية في الدول المنخفضة، المتوسطة، والمرتفعة الدخل.The research aims to study the inter-relationship between global competitiveness indicators and human development indicators for selected countries (low, middle, and high income)by using Granger Test, and VAR Test. The results of the causality test showed that there is a causality relation between international competitiveness and human development.
We found global competitiveness indicators has a clear effect on human development indicators in the low, middle, and high-income countries
Optimized Clustering Protocol for Balancing Energy in Wireless Sensor Networks
While wireless sensor networks (WSNs) are increasingly equipped to handle more complex functions and in-network processing may require these battery powered sensors to judiciously use their constrained energy to prolong the effective network lifetime. Cluster-based Hierarchical Routing Protocol using compressive sensing (CS) theory (CBHRP-CS) divides the network into several clusters, each managed by a set of CHs called a header. Each member of the header compresses the collected data using CS. This paper proposes an optimized clustering protocol using CS (OCP-CS) to improve the performance of WSNs by exploiting compressibility. In OCP-CS, each cluster is managed by a cluster head (CH). CHs are selected based on node concentration and sensor residual energy, and performs data aggregation using CS to reduce the energy consumed in the process of data sampling and transmission. Simulations show that our proposed protocol is effective in prolonging the network lifetime and supporting scalable data aggregation than existing protocols
Classifying Web 2.0 Supported Applications By Pattern Of Usage: Functional & Technical ISSUES
The rapid evolution of Internet technologies have witnessed new Web elements, such as blogs, wikis, social networking, social bookmarking, and other related applications referred to as Web 2.0. Web 1.0 paradigm was related with passive, just receptive users, whereas Web 2.0 paradigm relies mainly on user participation and user-generated content. In Web 2.0 applications users are invited to comment, share, edit, classify, as well as remix data from multiple sources. Although there are several Web 2.0 applications in the market there is still lack of a profound approach guiding the analysis, design and development of such applications. This paper suggests classifying Web 2.0 tools by “Pattern of Usage” or in other words the functionalities that characterize their specific features. By reviewing several literatures we extracted multiple attributes related to functionalities of Web 2.0 tools. These have been crystallised into 7 patterns of usage that include; Inter-connectivity, Content authoring, Content tagging & rating, Content aggregation & syndication, Content remixing, Content streaming and File sharing. By interlinking functionality/ usage with underlying technologies, techniques and architecture we provided insight into design and technical requirements for Web 2.0 supported applications. Furthermore we broke down the patterns into basic, elementary to include Inter-connectivity, File sharing and Content remixing, and secondary, supportive to include the other four patterns. This would provide the technical core for any development methodology targeted at Web 2.0 applications
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