الصفحة 1
الصفحة 1
العقد الذكي Smart contract
يستعرض البحث مفهوم العقد الذكي كأحد نتائج تكنولوجيا البلوك تشين، ويبرز خصائصه مثل التنفيذ التلقائي والشفافية، مع التركيز على التحديات القانونية والتقنية التي تواجه تطبيقه، خاصة في البيئة العربية. كما يقدم تحليلًا لمجالات استخدامه المتعددة ويوصي بتطوير تشريعات متخصصة وزيادة الوعي التقني والقانوني.
Wireless Internet ; 12th EAI International Conference, WiCON 2019, TaiChung, Taiwan, November 26–27, 2019, Proceedings
This book constitutes the refereed post-conference proceedings of the 12th International Conference on Wireless Internet, WiCON 2019, held in TaiChung, Taiwan, in November 2019. The 39 full papers were selected from 79 submissions and are grouped into the following topics: Ad hoc and sensor network, artificial intelligence, security and blockchain, internet of things, wireless internet, services and applications.
Wireless Algorithms, Systems, and Applications ; 15th International Conference, WASA 2020, Qingdao, China, September 13–15, 2020, Proceedings, Part I
These submissions cover many hot research topics, including machine-learning algorithms for wireless systems and applications, Internet of Things (IoTs) and related wireless solutions, wireless networking for cyber-physical systems (CPSs), security and privacy solutions for wireless applications, blockchain solutions for mobile applications, mobile edge computing, wireless sensor networks, distributed and localized algorithm design and analysis, wireless crowdsourcing, mobile cloud computing, vehicular networks, wireless solutions for smart cities, wireless algorithms for smart grids, mobile social networks, mobile system security, storage systems for mobile applications, etc.
Wildlife Study Design
Taking an approach from both a basic and applied perspective, the book covers numerous aspects of study design including variable classification, the necessity of randomization and replication in wildlife study design, the three major types of designs in decreasing order of rigor, detection probabilities, adaptive cluster methods, double sampling, sampling of rare species, effect size and power, and impact assessment, just to name a few. The concepts provided by the book make study design both accessible and comprehensive to a wide array of readers.
Wide-Bandwidth High Dynamic Range D/A Converters
The book provides the reader a thorough understanding of error mechanisms at high frequencies. It explains their effects and shows their dependencies with parameters of the processed signal, the architecture, its circuit blocks and their implementations.
What Every Engineer Should Know About Smart Cities
It is not just a theoretical exploration of smart cities. It goes beyond that by providing an in-depth look at the key technologies that are essential to creating smart cities. From the Internet of Things and blockchain to digital twins and modeling and simulations, readers will gain a solid understanding of the foundational technologies that make smart cities possible. With detailed discussions and real-world examples of smart mobility, smart health, smart education, and smart agribusiness, readers will gain a deep understanding of the requirements and characteristics that engineers need to contribute to the development of smart cities.
Web information systems and applications ; 17th International Conference, WISA 2020, Guangzhou, China, September 23–25, 2020, Proceedings
This book constitutes the proceedings of the 17th International Conference on Web Information Systems and Applications, WISA 2020, held in Guangzhou, China, in September 2020. The 42 full papers and 16 short papers presented were carefully reviewed and selected from 165 submissions. The papers are grouped in topical sections on world wide web, recommendation, query processing and algorithm, natural language processing, machine learning, graph query, edge computing and data mining, data privacy and security, and blockchain.
Vehicle Dynamics and Control
Vehicle Dynamics and Control provides a comprehensive coverage of vehicle control systems and the dynamic models used in the development of these control systems.
Vascular Mechanics and Pathology
Vascular Mechanics and Pathology focuses on the artery and arterial diseases. As the fundamental functions of the artery are to serve as a conduit of blood flow and as a container of blood pressure, Vascular Mechanics and Pathology describes both the general principles and the occurrence of stress concentration at the pressure vessel junctions and examines the role of beta-blockers in the reduction of atherosclerosis and related complications. This cutting-edge work presents the use of veins as arterial grafts and discusses the role of vein valves in graft stenosis. Vascular Mechanics and Pathology illustrates aneurysm formation, growth, and rupture, using pressure vessel principles. This new work details the investigation of, amongst other topics, aortic dissection, showing for the first time that the aortic root mechanics plays a vital role in the development of this pathology.
Understanding blockchain and cryptocurrencies : A primer for Implementing and developing blockchain projects
Discusses and explains topics such as hashing, Merkle trees, nodes, mining, proof of work and proof of stake, consensus mechanisms encryption, vulnerabilities, and much more. The structures and principles described will be relevant for developers and managers alike, and will be demonstrated through relevant examples throughout the text.
Ultra Low Power Capacitive Sensor Interfaces
Starts with an overview on the most important design aspects for autonomous sensor systems. The different building blocks are discussed and the modular architecture for the generic sensor interface chip is presented. Furthermore, the design of the analog components, such as capacitance-to-voltage converters, switched capacitor amplifier, Sigma Delta modulator, oscillators and reference circuits, is described in more detail. Finally, the generic sensor interface chip is applied in several state-of-the-art pressure sensor and accelerometer applications. Ultra Low Power Capacitive Sensor Interfaces is essential reading for anybody with an academic or professional interest in semiconductor design.
Twelve-Lead Electrocardiography : Theory and Interpretation
There are two components to the complete interpretation of an electrocardiogram (ECG): analysis of the rhythm of the ECG waveforms which are the electrical manifestation of cardiac activity; and analysis of the shape (morphology) of the waveforms in order to diagnose many conditions not related to rhythm. Twelve Lead Electrocardiography: Interpretation and Theory deals solely with this second component, and is aimed at students who already have a familiarity with the analysis of heart rhythms. Twelve Lead Electrocardiography for ACLS Providers describes a set of discrete building blocks of easily understood electrophysiologic principals, and then allows the reader to deduce what the 12 lead electrocardiogram will look like under various circumstances. There is no memorizing patterns. Instead emphasis is on understanding and deduction.
Trust, privacy and security in digital business ; 17th International Conference, TrustBus 2020, Bratislava, Slovakia, September 14–17, 2020, Proceedings
Constitutes the refereed proceedings of the 17th International Conference on Trust, Privacy and Security in Digital Business, TrustBus 2020, held in Bratislava, Slovakia, in September 2020. The conference was held virtually due to the COVID-19 pandemic. The 11 full and 4 short papers presented were carefully reviewed and selected from 28 submissions. The papers are organized in the following topical sections: blockchain, cloud security/hardware; economics/privacy; human aspects; privacy; privacy and machine learning; trust.
Transactions on Data Hiding and Multimedia Security II
This second issue contains five papers dealing with a wide range of topics related to multimedia security. The first paper introduces Fingercasting, which allows joint fingerprinting and decryption of broadcast messages. The second paper presents an estimation attack on content-based video fingerprinting. The third proposes a statistics and spatiality-based feature distance measure for error resilient image authentication. The fourth paper reports on LTSB steganalysis. Finally, the fifth paper surveys various blind and robust watermarking schemes for 3D shapes.
Topics in cryptology - CT-RSA 2008 ; The cryptographers’ track at the RSA Conference 2008, San Francisco, CA, USA, April 8-11, 2008. Proceedings
This book includes : hash function cryptanalysis, cryptographic building blocks, fairness in secure computation, message authentication codes, improved aes implementations, public key encryption with special properties, side channel cryptanalysis, cryptography for limited devices, invited talk, key exchange, cryptanalysis, and cryptographic protocols.
Topics in cryptology – CT-RSA 2007 ; The cryptographers' track at the RSA Conference 2007, San Fancisco, CA, USA, February 5-9, 2007, Proceedings
This book constitutes the refereed proceedings of the Cryptographers' Track at the RSA Conference 2007, CT-RSA 2007, held in San Francisco, CA, USA in February 2007. The 25 revised full papers presented together with two invited papers were carefully reviewed and selected from 73 submissions which cover all the topics of cryptography. The papers are organized in topical sections.
Topics in cryptology -- CT-RSA 2006 ; The cryptographers' track at the RSA Conference 2006, San Jose, CA, USA, February 13-17, 2005, Proceedings
This book constitutes the refereed proceedings of the Cryptographers’ Track at the RSA Conference 2006,held in San Jose, CA, USA, February 13-17, 2005. The RSA R Conference, with over 15,000attendees, as well as over 225 sponsors and exhibitors, is the largest computer security event of the year. The Cr- tographers’ Track is one of the many parallel tracks. These proceedings contain the papers presented during the sixth edition. The tradition indeed started in 2001, and is by now well established: the Cryptographers’ Track at the RSA Conference is among the major events in cryptography. There were 72 submitted contributions, of which 22 were selected for p- sentation. They cover all aspects of cryptography (symmetric and asymmetric cryptography, constructions and attacks, new trends).
Time Continuity in Discrete Time Models : New Approaches for Production Planning in Process Industries
Production planning problems containing special characteristics from process industries are addressed in this book. The main subject is the development of mathematical programming models that allow to model production plans which are not disrupted by discretization of time. However, discrete time models are used as a basis and are subsequently enhanced to include aspects of time continuity. Their integration is achieved by different building blocks which may be combined freely according to the specific planning situation at hand. The primary area of application of these kinds of models are process industries.
Théorie élémentaire et pratique de la commande par les régimes glissants = Elementary theory and practice of sliding regime control
This work proposes to apply the Sliding Regimes (RG) algorithms to industrial regulation and servo loops controlled to date by traditional PIDs (analog or digital) and their variants (RST, etc.). The real system to be controlled can be very diverse in nature, have parts that are poorly or not modeled, be subject to disturbances. These robust numerical algorithms XVS (X: Classic or Generalized; VS: structure variable) generate a command having a discontinuous component and give an evolution of the operating point of the looped system on (or around) the sliding surface (the dynamics of the system loop then becomes the dynamic defined by the surface equation). For each ordering methodology, in order to facilitate its application, we have chosen the context of initial training and continuing training: elementary theory, diagram - block, summary table, temporal diagrams, differential equations, Laplace formalism, numerical simulation , control by computer.
The Work : Architecture, Urban Design, Drawings, and Sculptures
After graduating, Krier first worked with O. M. Ungers and Frei Otto before setting up his own studios in Vienna and Berlin. He later taught at the Vienna University of Technology from 1976 to 1998 and as a visiting professor at Yale University in 1986. Drawing on a wealth of historical models and archetypal patterns, he developed new typologies of streets and public squares as an architect and urban planner, and was responsible for numerous urban development projects throughout Europe. These included the perimeter block development on Ritterstrasse for the IBA in Berlin, the residential complex on Breitenfurter Strasse in Vienna, the Kirchsteigfeld district in Potsdam, and numerous projects in the Netherlands.
