The study of reducing the cost of investment in wind energy based on the cat swarm optimization with high reliability

Wind and solar are the most important source of renewable energy for power supply in remote locations involves serious consideration of the reliability of these unconventional energy sources. We apply the cat swarm meta-heuristic optimization method to solve the problem of wind power system design optimization. The electrical power components of the system are characterized by their cost, capacity and reliability. This study seeks to optimize the design of parallel power systems in which multiple choices of generators wind, transformers and lines. Our plan has the advantage of allowing electrical components with different parameters to be customized in electrical power systems. The UMGF method is applied to allow rapid reliability estimation. A computer program is developed for the UMGF application and CS algorithm. An example is provided to explain

Islamic financial technology and its role in promoting growing of Islamic finance

تهدف هذه الدراسة إلى إبراز الدور الذي يمكن أن تؤديه حلول التكنولوجيا المالية الإسلامية في تعزيز تنامي التمويل الإسلامي وتحسين جودته. وقد تم الاعتماد في هذه الدراسة على المنهج الوصفي للتعرف على موضوع التكنولوجيا المالية وأهم محطات تطورها وأبرز مجالاتها، وكذا المنهج التحليلي لرصد تطورات نمو حجم الصناعة المالية الإسلامية في ظل التحولات الرقمية وارهاصات الثورة الصناعية الرابعة. وقد خلصت الدراسة إلى أن الصناعة المالية الإسلامية آخذة في النمو والتوسع ويمكن الرفع من وتيرة هذا النمو من خلال قيام الهيئات التنظيمية في الدول الإسلامية بتطوير النظام البيئي للمؤسسات المالية الإسلامية وجعله يتماشى مع مستجدات الثورة الصناعية الرابعة باستخدام أدوات التكنولوجيا المالية المتوافقة مع أحكام الشريعة الإسلامية.This study aims to highlight the role that Islamic financial technology solutions can play in promoting the growth and quality of Islamic finance. This study was based on a descriptive approach to identifying the subject of financial technology and its most important development and area, as well as an analytical approach to monitoring developments in the size of the Islamic financial industry in the context of digital transformations and the foundation of the Fourth Industrial Revolution. The study concluded that the Islamic financial industry is growing and expanding and that this growth can be accelerated through the development by the regulatory bodies of Islamic States of the ecosystem of Islamic financial institutions and bringing it into line with the developments of the Fourth Industrial Revolution using financial technology instruments compatible with Islamic Sharia Principles

Influence of contact interface morphology on the nonlinear interaction between a longitudinal wave and a contact interface with friction : A numerical study

The detection and evaluation of closed cracks are of prime interest in industry. Whereas conventional ultrasonic methods fail to detect these defects, nonlinear methods based on activation of the nonlinear behavior of closed cracks constitute an interesting alternative. The aim of this article is to give a better understanding of interactions between cracks and a longitudinal elastic wave for a quantitative investigation into nonlinear signatures. Using a 1D approach based on the literature, the nonlinear signature of the contact interface is analyzed in two cases. In the first, the interface is initially open and in the second, it is initially closed before interaction with an elastic wave. These signatures were qualitatively observed experimentally in real cracks. Next, in order to investigate the influence of the coexistence of open and closed zones within the interface, a numerical 2D-study is proposed. Two configurations are considered involving two steel blocks in contact, with different contact interface morphologies. The first configuration is a perfectly plane contact interface, while the second one involves an interface between a concave surface and a plane surface. A non-plane wave is also considered. This study attempts to establish a link between local second harmonic generation and interface parameters (pre-stress, gap) that can be exploited for the nondestructive quantitative evaluation of interfaces or cracks

The evolving SARS-CoV-2 epidemic in Africa: Insights from rapidly expanding genomic surveillance

INTRODUCTION Investment in Africa over the past year with regard to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) sequencing has led to a massive increase in the number of sequences, which, to date, exceeds 100,000 sequences generated to track the pandemic on the continent. These sequences have profoundly affected how public health officials in Africa have navigated the COVID-19 pandemic. RATIONALE We demonstrate how the first 100,000 SARS-CoV-2 sequences from Africa have helped monitor the epidemic on the continent, how genomic surveillance expanded over the course of the pandemic, and how we adapted our sequencing methods to deal with an evolving virus. Finally, we also examine how viral lineages have spread across the continent in a phylogeographic framework to gain insights into the underlying temporal and spatial transmission dynamics for several variants of concern (VOCs). RESULTS Our results indicate that the number of countries in Africa that can sequence the virus within their own borders is growing and that this is coupled with a shorter turnaround time from the time of sampling to sequence submission. Ongoing evolution necessitated the continual updating of primer sets, and, as a result, eight primer sets were designed in tandem with viral evolution and used to ensure effective sequencing of the virus. The pandemic unfolded through multiple waves of infection that were each driven by distinct genetic lineages, with B.1-like ancestral strains associated with the first pandemic wave of infections in 2020. Successive waves on the continent were fueled by different VOCs, with Alpha and Beta cocirculating in distinct spatial patterns during the second wave and Delta and Omicron affecting the whole continent during the third and fourth waves, respectively. Phylogeographic reconstruction points toward distinct differences in viral importation and exportation patterns associated with the Alpha, Beta, Delta, and Omicron variants and subvariants, when considering both Africa versus the rest of the world and viral dissemination within the continent. Our epidemiological and phylogenetic inferences therefore underscore the heterogeneous nature of the pandemic on the continent and highlight key insights and challenges, for instance, recognizing the limitations of low testing proportions. We also highlight the early warning capacity that genomic surveillance in Africa has had for the rest of the world with the detection of new lineages and variants, the most recent being the characterization of various Omicron subvariants. CONCLUSION Sustained investment for diagnostics and genomic surveillance in Africa is needed as the virus continues to evolve. This is important not only to help combat SARS-CoV-2 on the continent but also because it can be used as a platform to help address the many emerging and reemerging infectious disease threats in Africa. In particular, capacity building for local sequencing within countries or within the continent should be prioritized because this is generally associated with shorter turnaround times, providing the most benefit to local public health authorities tasked with pandemic response and mitigation and allowing for the fastest reaction to localized outbreaks. These investments are crucial for pandemic preparedness and response and will serve the health of the continent well into the 21st century

Knowledge Organization in the perspective of Digital Humanities: Researches and Applications (ISKO-Maghreb'2015)

International audienceThe governance of knowledge seems to be the Scientific Policy most able to creating value with regard of human and its evolution in cultures and civilizations. The duty of good governance is a consideration of the transfer of knowledge related to scientific and technological progress. Intrinsically, this process requires a system of knowledge organization and its management by implementing knowledge production and its influence in society.In the present case, rely across all paradigms, know-how and specific knowledge to scientific disciplines and especially those in Humanities and Social Sciences, allows finding a dynamic of Knowledge Organization for dissemination, sharing and enhancement of knowledge. This new transdisciplinary orientation allows including concepts, tools and singular perspectives in the digital field and information technology.With this new focus on the Knowledge Organization from the perspective of "Digital Humanities", the objective of the ISKO-Maghreb Chapter is to contribute in understanding the factors that organize knowledge and phenomena that affect the information society. Actions to be undertaken by the ISKO society must take into account socio-cultural, cognitive and economic in the strategic management of knowledge. Towards the knowledge society in line with the Digital Humanities, it should be seen in its dynamic, its content and its interaction with science, technology and transdisciplinary associated to universities, companies and politics.In this new context "Digital Humanities" related to aspects of the "Knowledge Organization” and modalities of its management", a first orientation is pedagogical trying to answer the question "What is known about the knowledge and its organization in the context of Digital Humanities? ". Then the question is evolving towards societal issues of knowledge, researches and applications, to provide clarifications towards the convergence of approaches and practices for the common use of digital platforms. Education, science, culture, communication and technology remain the major themes covered by ISKO Maghreb, for the development of the knowledge organization, collective intelligence and the perspective of the Digital Humanities.In a friendly atmosphere, hospitality and open to exchange, the international symposium ISKO-Maghreb was thought to enhance the Scientific Society "ISKO" with the universities, the practitioners in the Maghreb countries and the world

Handicraft women recommendation approach based on user’s social tagging operations

International audienc

ISKO-Maghreb’2019 PROCEEDINGS on "Digital Sciences: impacts and challenges on Knowledge Organization." : 8th. Edition.

International audience“The world is changing” according to Michel Serres in his book “Petite Poucette” (March 2012) and in his detailed speech at the French Academy (November 2017), he argues by: “It should then draw the consequences of this change of the space that affects the human species with the emergence of the “new technologies” of information and communication – in particular by trying to establish a new balance between the material element and the intangible element. “. Historically for Humanity, two major inventions that have profoundly changed the knowledge organization (KO) while associating culture and the transmission of knowledge: it is about writing (around the fourth millennium BC), then printing (in the fifteenth century by the invention of Johannes Gutenberg). Today, with digital technology, it is a major new invention that is imposing and having profound repercussions on the knowledge organization system (KOS) and its transmission of knowledge, on teaching and pedagogy, and on society and its world economy oriented towards the intangible.At the dawn of the twenty-first century, we are witnessing the emergence of a young science called “digital sciences” to designate the information and communication sciences on their hardware and software components. The digital sciences revolutionize knowledge in relation to its technological means, as well as social links (or humanity) with its relationship to knowledge and its organization.To the changes brought about by digital sciences, society as a whole must adapt and consider skills that reinvent tomorrow’s social relationships and its relation to knowledge: what we call the dynamic and interactive Web (web2.0 and web3.0), the Social networks that allow the creation of educational, professional and societal communities, the Collective Production of Knowledge and its relation to the collective intelligence, the risks of the Proliferation of the information and its consequences like the misinformation, the “fake news” or invasion of privacy. All of these changes have a potential and profound impact on education, culture, society and knowledge organization systems (KOS).Faced with the advent of the digital sciences, the governance of knowledge seems to be the scientific policy best suited to the creation of value with regard to Man and his evolution in cultures and civilizations. The task of this governance is to take into consideration the transmission of knowledge related to scientific, technological and communication progress. Intrinsically, this process of knowledge transfer requires a system of knowledge organization and management that implements the production of knowledge, its actors and the digital sciences for its influence in society.The objective of the ISKO-Maghreb chapter continues to contribute to understanding the factors that organize knowledge and the phenomena that affect the information society. The actions to be undertaken by the scholarly society ISKO will have to take into account socio-cultural, cognitive and economic aspects in the strategic management of knowledge. Towards the knowledge society, knowledge must be seen in its dynamics, content and scientific and technological interactions with academics, business and politics (actors and institutions).In this context, a first orientation is pedagogical to try to answer the question “what do we know about knowledge, its organization and its mutation?”. Then, the question evolves towards the societal challenges of knowledge, in theory and in practice, to provide clarifications to “what convergence of KO (Knowledge Organization) and KM (Knowledge Management) approaches that organize knowledge and know-how? “. Education, Digital Sciences, Culture, Information and Communication Sciences, remain the major themes covered by ISKO-Maghreb, for the establishment of knowledge organization, management skills, collective intelligence and Digital Humanities

Concepts and Tools for Knowledge Management (KM)

DL (Dépôt Légal en Algeria): 266-2014 CERIST-AlgérieIEEE Xplore: DOI: 10.1109/ISKO-Maghreb.2014International audienceThe governance of knowledge seems to be the Scientific Policy most able to creating value with regard of human and its evolution in cultures and civilizations. The duty of good governance is a consideration of the transfer of knowledge related to scientific and technological progress. Intrinsically, this process requires a system of organization and knowledge management by implementing knowledge production and its influence in society.The objective of the ISKO-Maghreb Chapter is to contribute in understanding the factors that organize knowledge and phenomena that affect the information society. Actions to be undertaken by the scientific ISKO society must take into account socio-cultural, cognitive and economic in the strategic management of knowledge. Towards the knowledge society, it should be seen in its dynamic, its content and its interaction with science and technology associated to universities, companies and politics.In this context, a first orientation is pedagogical attempt to answer the question "what is known about the knowledge and its organization?". Then the issue is moving towards the societal issues of knowledge, theory and practice, to provide clarification to a convergence of KM (Knowledge Management) approaches. Education, science, culture, communication and technology remain the major themes covered by ISKO-Maghreb 2015, for the development of the knowledge organization, expertise management and collective intelligence