Strength of Fibrous Composites" addresses evaluation of the strength of a fibrous composite by using its constituent material properties and its fiber architecture parameters. Having gone through the book, a reader is able to predict the progressive failure behavior and ultimate strength of a fibrous laminate subjected to an arbitrary load condition in terms of the constituent fiber and matrix properties, as well as fiber geometric parameters. The book is useful to researchers and engineers working on design and analysis for composite materials. Dr. Zheng-Ming Huang is a professor at the School of Aerospace Engineering & Applied Mechanics, Tongji University, China. Mr. Ye-Xin Zhou is a PhD candidate at the Department of Mechanical Engineering, the University of Hong Kong, China.
This volume is a collection of papers presented at a special session on integrable systems and Riemann-Hilbert problems. The goal of the meeting was to foster new research by bringing together experts from different areas. Their contributions to the volume provide a useful portrait of the breadth and depth of integrable systems. Topics covered include discrete Painleve equations, integrable nonlinear partial differential equations, random matrix theory, Bose-Einstein condensation, spectral and inverse spectral theory, and last passage percolation models. In most of these articles, the Riemann-Hilbert problem approach plays a central role, which is powerful both analytically and algebraically. The book is intended for graduate students and researchers interested in integrable systems and its applications.
This SpringerBrief discusses the most recent research in the field of multimedia QoE evaluation, with a focus on how to evaluate subjective multimedia QoE problems from objective techniques. Specifically, this SpringerBrief starts from a comprehensive overview of multimedia QoE definition, its influencing factors, traditional modeling and prediction methods. Subsequently, the authors introduce the procedure of multimedia service data collection, preprocessing and feature extractions. Then, describe several proposed multimedia QoE modeling and prediction techniques in details. Finally, the authors illustrate how to implement and demonstrate multimedia QoE evaluation in the big data platform. This SpringerBrief provides readers with a clear picture on how to make full use of multimedia service data to realize multimedia QoE evaluation. With the exponential growth of the Internet technologies, multimedia services become immensely popular. Users can enjoy multimedia services from operators or content providers by TV, computers and mobile devices. User experience is important for network operators and multimedia content providers. Traditional QoS (quality of service) can not entirely and accurately describe user experience. It is natural to research the quality of multimedia service from the users’ perspective, defined as multimedia quality of experience (QoE). However, multimedia QoE evaluation is difficult, because user experience is abstract and subjective, hard to quantify and measure. Moreover, the explosion of multimedia service and emergence of big data, all call for a new and better understanding of multimedia QoE. This SpringerBrief targets advanced-level students, professors and researchers studying and working in the fields of multimedia communications and information processing. Professionals, industry managers, and government research employees working in these same fields will also benefit from this SpringerBrief.
When others transmigrated, Lu Zhu transmigrated, and when others transmigrated, their handsome brothers would fly everywhere, and even the worst among them would be saved by their handsome brothers. Why did Lu Zhu transmigrated, not only did he bring a 'burden bottle', he even brought a 'burden bottle', but he actually unluckily saved Old Lady ...The unlucky star was the top. Lu Zhu accepted it. They had all become self-reliant and found ways to survive. Why did he have to meet a tyrant when he started his own business in the ancient times?Wahaha... The handsome guy was here, and there was more than one of him. The other side was using a group chat, so she might as well use a group chat. It looked like she had had her bad luck, good luck ...What? The lousy Old Lady he saved was the empress dowager. These handsome men were her sons ... Great, not only was there the handsome guy, there was also Jin Shan waiting for Lu Zhu to go splurge, what a beautiful life ...
This book uses the concept of the region to introduce traditional Chinese villages in ten typical areas. Most of the villages have been included in the World Cultural Heritage List or the Tentative List and reflect the diversity of rural and traditional life. Richly illustrated with pictures of architectural decorations, dwellings, day-to-day country life and aerial views of settlements, it not only enhances readers’ knowledge of China’s traditional architectural culture but also provides inspiration for architectural creation. It is a valuable resource for graduate students, lecturers and researchers in the field of traditional villages, heritage conservation and Chinese architectural culture.
This textbook consists of six chapters. The first chapter highlights the concept of liquid crystals, including chemical structure, phase classification, defect and texture, and continuum theory. It has been carefully written to meet the needs of readers who do not specialize in liquid crystals. The second chapter is related to the theoretical description of liquid crystalline polymers, networks, and gels, which deals with subjects such as the formation of liquid crystallinity in the polymer system, the phase transition and phase diagram, the molecular weight effect, chain conformation, physics properties, etc. In Chapter 3, the molecular engineering of liquid crystalline polymers is introduced. The molecular composition and the molecular weight play essential roles in the molecular design, which are reviewed in detail. In addition, some unusual liquid crystalline polymers are discussed. Chapter 4 is devoted to the phase identification of liquid crystalline polymers. The techniques involved cover polarizing microscopy, thermal analysis, X-ray diffraction, and other areas. Chapters 5 and 6 summarize the properties and applications of liquid crystalline polymers: Chapter 5 deals mainly with mechanical performance in fiber and composites; Chapter 6 presents the elasticity, viscosity and rheology of liquid crystalline polymers, as well as other important properties.
Blockchain is a distributed ledger, offering an innovative approach to establishing trust in a public and open environment. However, it bears many security attacks in sustaining data/status consistency in the process of data storing and exchanging, and the long-delay attack is one of the most challenging ones. Many researchers have adopted various methods in analyzing the blockchain system security by considering a upper-bounded and static network latency. In a realistic scenario, the network latency is always changing dynamically, resulting in the unreliability and inaccuracy of the existing analysis approaches. In this book, we propose a blockchain security analysis model based on partially observable Markov decision process (POMDP) against the long delay attack by capturing the dynamic network delay. In our model, an observation function about the network delay is learned and updated based on a clustering algorithm according to the real-time network status. With the support of the observation function, a POMDP model is constructed for attackers to maximize their expected rewards. To analyze the security of a blockchain system against the long delay attack, the utility of the attackers and normal miners with the same mining power is calculated and compared. The system is safe as the utility of the normal miners is no less than that of the attackers. Extensive experiments are conducted to show the effectiveness of the proposed analysis model, where Bitcoin system is evaluated and the safe ranges of the system network parameters are analyzed.
Associating larvae and adults of hydropsychids using morphology and DNA sequences appears to be promising for both reliability and speed. This molecular approach is also expected to be helpful in many problems related to polyphenism across insect groups, such as identification of various life stages, metamorphs, and sexual and seasonal morphs.
This book focuses on the multi-beam phased array antenna as a satellite ground station. As there are already many excellent books on phased array antennas in the literature, this book focuses mainly on some engineering practices and fills the gap between principles and practices, such as array excitation error impact analysis and calibration methods, array geometry design for hemispherical coverage, multiple beam resource management, etc. This book is particularly suitable for readers interested in satellite constellation design or satellite ground station design. This book also benefits researchers and engineers in the fields of phased array antennas, aerospace engineering, telecommunications, etc.
The warrior who returned to the city thought that life had come to peace, but he did not expect to fall into another whirlpool ... He was a famous soldier king and had just completed a dangerous mission and returned to the Feng city when he was almost killed. He planned to take care of his friend's sister in accordance with his friend's last wish, which can also make up for the pain of losing his friend. Halfway through, he received an order from his adoptive father and was forced to become a bodyguard for a sexy female CEO. He thought this mission was easy to be accomplished, but he didn't expect to involve in a huge conspiracy ... ☆About the Author☆ Xin Bu Zai Ma, a brilliant online novelist, his novels have twists and turns, sharp writing styles, and accurate and distinctive portrayal of characters, which was loved by readers.
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.