Bøger udgivet af WSPC

This book contains a detailed presentation on the theory of two classes of special numbers, perfect numbers, and amicable numbers, as well as some of their generalizations. It also gives a large list of their properties, facts and theorems with full proofs. Perfect and amicable numbers, as well as most classes of special numbers, have many interesting properties, including numerous modern and classical applications as well as a long history connected with the names of famous mathematicians.The theory of perfect and amicable numbers is a part of pure Arithmetic, and in particular a part of Divisibility Theory and the Theory of Arithmetical Functions. Thus, for a perfect number n it holds ¿(n) = 2n, where ¿ is the sum-of-divisors function, while for a pair of amicable numbers (n, m) it holds ¿(n) = ¿(m) = n + m. This is also an important part of the history of prime numbers, since the main formulas that generate perfect numbers and amicable pairs are dependent on the good choice of one or several primes of special form.Nowadays, the theory of perfect and amicable numbers contains many interesting mathematical facts and theorems, alongside many important computer algorithms needed for searching for new large elements of these two famous classes of special numbers.This book contains a list of open problems and numerous questions related to generalizations of the classical case, which provides a broad perspective on the theory of these two classes of special numbers. Perfect and Amicable Numbers can be useful and interesting to both professional and general audiences.

Working capital refers to the money that a company uses to finance its daily operations. Proper management of working capital is critical to financial health and operational success. Working capital management (WCM) aims to maximize operational efficiency by maintaining a delicate balance among growth, profitability, and liquidity. WCM is a continuous responsibility focusing on a firm's day-to-day operations involving short-term assets and liabilities. By efficiently managing a firm's cash, accounts receivable, inventories, and accounts payable, managers can help maintain smooth operations and improve a company's earnings and profitability. By contrast, poor WCM could lead to a lower credit score, financial insolvency, legal troubles, liquidation of assets, and potential bankruptcy.This book provides an objective look into the dynamic world of WCM. Its coverage extends from discussing basic concepts and their applications to increasingly complex and real-world situations. The book stresses that WCM is a combination of both art and science. This volume spans the gamut from theoretical to practical while offering the right balance of detailed and user-friendly coverage. Readers can gain an in-depth understanding of this subject from experts in this field. Those who want a broad survey will benefit, as will readers looking for more in-depth presentations of specific areas within this field of study. In summary, Working Capital Management: Concepts and Strategies provides a fresh look at this intriguing but often complex subject of WCM.

How to design an efficient and cost-effective logistics network? How to plan procurement, production, and transportation to meet customer demand with minimum operating costs? How to sequence jobs through machines for on-time order completion? And how to dispatch vehicles and schedule their routes to serve customers efficiently?Answers to these questions are key to effective and efficient supply chain operations. This book provides a systematic and comprehensive coverage of data-driven optimization modeling techniques and their applications in supply chain management. From the methodological perspective, it introduces various model building techniques including mathematical programming (linear and integer programming), network optimization, and constraint programming. From the application perspective, it covers the topics of supply chain network design, production planning, supply chain configuration, machine scheduling, and vehicle routing, among others. It also introduces the state-of-the-art optimization modeling software, the CPLEX OPL Studio, as a powerful and accessible tool for implementing the modeling techniques and solution methods in this book. Sample codes will be available upon purchase of the book.This book is essential reading material for researchers and students in business, data analytics, industrial engineering, computer science and applied math who would like to learn optimization modeling in the context of supply chains. It is also suitable for practitioners and consultants in industry who would like to understand the behind-the-scene techniques in off-the-shelf commercial optimization software. As a textbook, it can be used for an advanced undergraduate or graduate course in supply chain management, operations management, data analytics, economics, and industrial engineering.

This book focuses on corporate governance and proposes a novel framework for combining the Corporate Governance Framework (CGF) with current corporate finance issues arising in the Contemporary Business Environment (CBE) and cointegrating them with today's business needs. It consists of a good collection of state-of-the-art approaches that will be useful for new researchers and practitioners working in this field, helping them to quickly grasp the current state of corporate governance and corporate financial performance.Good corporate governance is not only important for companies, but also for the society. To begin with, good corporate governance strengthens the public's faith and trust in corporate governance. Legislative processes were developed to protect the society from known threats and prevent problems from occurring or recurring. Recent corporate scandals shed light on the impact that corporations have on social responsibility. The new focus on the corporate governance framework increases the responsibility and accountability of companies to their stakeholders and provides a solid framework for enhancing corporate performance.

Magnetic crystals are ideal systems to study the universal properties of phase transitions, particularly systems with quenched randomness and frustration. Pure systems with different symmetries provide the foundation for studies in corresponding systems with quenched randomness. Because phenomena near phase transitions have universal properties, results from bulk magnetic crystals provide a basis for understanding phase transitions in films and nanoparticles, as well as many non-magnetic materials.This motivates the subject of this book, which discusses phase transitions studies in magnetic crystals from the perspective of an experimentalist who has done extensive work in the field. The advantage is that many experimental techniques are described in sufficient detail for a good understanding of the results and their comparison to theory.

This book is a good collection of state-of-the-art approaches to financial engineering. It will be especially useful to new researchers and practitioners working in this field and will help them to quickly grasp the current state of financial engineering. The book equips the readers with comprehensive understanding of technological issues and financial innovations in environmental and social matters. It will allow the readers to use new econometric and operational methods to examine certain innovative products. Finally, it proposes new operational solutions based on a framework of analysis that has not yet been explored, so that the dialogue between financial engineering professionals and company managers may be more efficient, effective and impactful.

This is a book for the second course in linear algebra whereby students are assumed to be familiar with calculations using real matrices. To facilitate a smooth transition into rigorous proofs, it combines abstract theory with matrix calculations.This book presents numerous examples and proofs of particular cases of important results before the general versions are formulated and proved. The knowledge gained from a particular case, that encapsulates the main idea of a general theorem, can be easily extended to prove another particular case or a general case. For some theorems, there are two or even three proofs provided. In this way, students stand to gain and study important results from different angles and, at the same time, see connections between different results presented in the book.

Machine Learning in Bioinformatics of Protein Sequences guides readers around the rapidly advancing world of cutting-edge machine learning applications in the protein bioinformatics field. Edited by bioinformatics expert, Dr Lukasz Kurgan, and with contributions by a dozen of accomplished researchers, this book provides a holistic view of the structural bioinformatics by covering a broad spectrum of algorithms, databases and software resources for the efficient and accurate prediction and characterization of functional and structural aspects of proteins. It spotlights key advances which include deep neural networks, natural language processing-based sequence embedding and covers a wide range of predictions which comprise of tertiary structure, secondary structure, residue contacts, intrinsic disorder, protein, peptide and nucleic acids-binding sites, hotspots, post-translational modification sites, and protein function. This volume is loaded with practical information that identifies and describes leading predictive tools, useful databases, webservers, and modern software platforms for the development of novel predictive tools.

Metal halide perovskites are the hottest materials currently.This unique compendium covers systematically the fundamental aspects of synthesis, properties, and applications of metal halide perovskites that exhibit unique properties and useful functionalities.Written for beginners and practitioners, this useful reference text provides a good balance between fundamental concepts/principles and related recent researches with many highlighted examples.This volume benefits researchers, practitioners, graduate students in materials chemistry/nanochemistry, physical chemistry and semiconductors.

The unique compendium presents special principles and techniques of spectroscopic measurements that are used in semiconductor manufacturing.Since industrial applications of spectroscopy are significantly different from those traditionally used in scientific laboratories, the design concepts and characteristics of industrial spectroscopic devices may vary significantly from conventional systems. These peculiarities are thus succinctly summarized in this volume for a wide audience of students, engineers, and scientific workers.Exceptionally well-illustrated with practical solutions in detail, this useful reference text will open new horizons in new research areas.

With the proliferation of information, big data management and analysis have become an indispensable part of any system to handle such amounts of data. The amount of data generated by the multitude of interconnected devices increases exponentially, making the storage and processing of these data a real challenge.Big data management and analytics have gained momentum in almost every industry, ranging from finance or healthcare. Big data can reveal key insights if handled and analyzed properly; it has great application potential to improve the working of any industry. This book covers the spectrum aspects of big data; from the preliminary level to specific case studies. It will help readers gain knowledge of the big data landscape.Highlights of the topics covered include description of the Big Data ecosystem; real-world instances of big data issues; how the Vs of Big Data (volume, velocity, variety, veracity, valence, and value) affect data collection, monitoring, storage, analysis, and reporting; structural process to get value out of Big Data and recognize the differences between a standard database management system and a big data management system.Readers will gain insights into choice of data models, data extraction, data integration to solve large data problems, data modelling using machine learning techniques, Spark's scalable machine learning techniques, modeling a big data problem into a graph database and performing scalable analytical operations over the graph and different tools and techniques for processing big data and its applications including in healthcare and finance.

The unique compendium re-assesses the value of future and emergent computing technologies via artistic and philosophical means. The book encourages scientists to adopt inspiring thinking of artists and philosophers to reuse scientific concepts in their works.The useful reference text consists of non-typical topics, where artistic and philosophical concepts encourage readers to adopt unconventional approaches towards computing and immerse themselves into discoveries of future emerging landscape.

The quest for the unification of fundamental interactions has become the most challenging frontier of sciences in the 21st century. This book presents a detailed analysis and systematic investigation of the foundations of the hyperunified field theory (HUFT) in light of the path integral formulation with the least action principle. Alternative to other unification theories, the starting point of HUFT is initiated from a simple notion that the universe is made of the fundamental building block which is always moving and obeys the basic rule. Such a rule is delved into in this book by proposing the maximum locally entangled-qubits motion principle together with the scaling and gauge invariance principle. These two basic guiding principles are demonstrated to lay the foundations of HUFT, which enable enables us to discuss a series of long-standing fundamental questions, such as: why does the fundamental building block of nature appear as an entangled qubit-spinor field? what brings about the fundamental symmetry of nature? how does the inhomogeneous hyperspin gauge symmetry govern all basic forces? what is the nature of gravity and space-time? how can the space-time dimension and qubit-spinor field be categorized? why do we live in a universe with only four-dimensional space-time? why are there more than one family of leptons and quarks? how does the early universe evolve to be inflationary? what is the nature of dark matter and dark energy?Foundations of the Hyperunified Field Theory will be of great interest to graduate and senior undergraduate students, junior and senior researchers in theoretical physics, quantum field theory, particle physics, gravitational theory, cosmology, as well as mathematical physics and general physics.

This book contains contributions by the best-known and consequential researchers who, over several decades, shaped the field of financial engineering. It presents a comprehensive and unique perspective on the historical development and the current state of derivatives research. The book covers classical and modern approaches to option pricing, realized and implied volatilities, classical and rough stochastic processes, and contingent claims analysis in corporate finance. The book is invaluable for students, academic researchers, and practitioners working with financial derivatives, market regulation, trading, risk management, and corporate decision-making.

The global public health crisis of COVID-19 highlights the importance of digital technology. The digital economy is also booming during the pandemic, which has become one of the major driving forces of economic recovery. Given the vital importance of digital technology and the digital economy, this book provides an in-depth understanding of their implications for the sustainable development of ASEAN-China relations from various perspectives. In addition, authors also contribute their resourceful insights on the sustainable development of both China and ASEAN Member States (AMS) through the lens of eco-tourism, carbon neutrality, social inequality, and others.This book provides a series of high-quality policy recommendations. Specific policy recommendations include: 1) China and ASEAN should launch a project to identify connectivity gaps and detail how this might evolve in future investment in digital and ICT (science, technology and innovation). 2) Efforts should be intensified in digital literacy programs, capacity building, and promotion of digital skills to build workforce capacity in the digital age. 3) As a pacesetter in the digital inclusion agenda in the healthcare sector, China can cooperate with other AMS on digital healthcare projects. 4) Action plans should increase collaborative manufacturing and develop mutual trust in supply chains. 5) China and ASEAN should align STI policies with industrial policies and cooperate in adopting frontier technologies while diversifying their production bases by mastering many existing technologies.6) ASEAN and China should continue facilitating e-commerce, including paperless customs clearance, electronic transaction documents, digital authentication, and electronic and online payments.

This comprehensive compendium provides an up-to-date scientific source of biomedical engineering principles of "replacement parts and assist devices" for the bionic man. It covers biomechanics, biochemistry, rehabilitation, tissue engineering, and sports science, as well as applications in cardiovascular, visual, auditory, and neurological systems.The useful reference text benefits students, scientists, and laymen keen in understanding the fundamental underlying principles of biomedical devices and procedures, along with recent advances in transplant methodology, gene therapy, stem cell research, and sports science.This unique volume provides numerous test questions in selected chapters with answers in the Appendix. Numerous color figures provide additional emphasis and vivacity to the written content.

While the Origin of Life on Earth is explored by modern sciences based both on experimental and observational methods, a new biological principle is adopted in addition to the principles of physics and chemistry. The biosphere is explained by the biodiversity and coexistence amongst countlessly different species reminding us of the Buddha Nature. The book verifies the existence of a platform - dialogues between science and Buddhism - to contemplate these modern aspects of life.In the 2nd century BCE, western Greek philosophy encountered eastern Indian Buddhist philosophy, as captured in a Buddhist text, the Milindapanha (Questions of Milinda), resulting in the Greco-Buddhism, the cultural syncretism between Hellenistic culture and Buddhism. Some two thousand years later, in the modern era, the sciences have revolutionized ancient philosophies, as Buddhism by the philosophy of Emptiness, stimulating various new schools.Many scientists have written about science, and many Buddhists have explained Buddhism, but an in-depth analysis of both fields may be rare. The book reports on a recent project commemorating the founder and Indian monk of Zen Buddhism Bodhidharma. Imagine a Buddhist Eagle, soaring in the sky of Emptiness with both wings spreading out - one of Wisdom and another of Great Compassion - on all countlessly-many sentient beings.

Crisis management is not a new topic in management research and teaching. Every company meets challenges and crisis at some point and being able to deal with them decides whether a business survives. Despite this, crisis management has not yet been a prominent part of the modern business school curriculum. The pandemic has changed that, and how to deal with crisis has become the major question, not only for entrepreneurs and managers, but also for business educators.This book presents 22 case studies of Asian multinational corporations overcoming crisis. The topics do not only deal with the pandemic, but all kind of challenges of modern business and show how companies did overcome or which strategies they have developed to do so. The companies are divided into different industries such as the automotive industry, entertainment or aviation industries.The cases can be used in business and international management classes, but can also be read to learn about modern crisis management strategies.