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  Beam Propagation Method and Microlens Design for optical Coupling

  This book describes two categories of work, i.e., the finite-difference full-vectorial beam propagation method (FD-FV-BPM) development and microlens design for single-mode fiber (SMF) to laser diode (LD) coupling. Chapter 2 gives a review of the general formula to solve the FV-BPM equation of electric formula by using the FD method. The FD-FV-BPM based eigenmode solver is then successfully employed to investigate the effective index of the fundamental modes in an air-filled silica index-guiding photonic crystal fiber. Chapter 3 presents an improved FD-FV-BPM for arbitrary optical waveguides simulation with a dramatic improvement in accuracy. In Chapter 4, an improved wedge-shaped fiber design is presented for coupling 980nm pump LDs to SMFs. In Chapter 5, a tapered and hemispherically-ended graded-index fiber (GIF) structure is demonstrated for the coupling between SMFs and 1330nm or 1550nm LDs. In Chapter 6, an ideal microlens profile for flatting the equiphase distribution of a Gaussian laser beam is obtained analytically by a design tool based on the combination of Gaussian beam theory and ray optics.

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  • Price: 33.99 EUR excl. shipping
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  Differential Equations with Mathematica

  Differential Equations with Mathematica, Fifth Edition uses the fundamental concepts of the popular platform to solve (analytically, numerically, and/or graphically) differential equations of interest to students, instructors, and scientists. Mathematica's diversity makes it particularly well suited to performing calculations encountered when solving many ordinary and partial differential equations. In some cases, Mathematica's built-in functions can immediately solve a differential equation by providing an explicit, implicit, or numerical solution. In other cases, Mathematica can be used to perform the calculations encountered when solving a differential equation. Because one goal of elementary differential equations courses is to introduce students to basic methods and algorithms so that they gain proficiency in them, nearly every topic covered this book introduces basic commands, also including typical examples of their application. A study of differential equations relies on concepts from calculus and linear algebra, so this text also includes discussions of relevant commands useful in those areas. In many cases, seeing a solution graphically is most meaningful, so the book relies heavily on Mathematica's outstanding graphics capabilities.

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  • Price: 143.99 EUR excl. shipping
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  Combatants in African Conflicts (eBook, PDF)

  This book focuses on the different types of combatants in conflicts in Africa, exploring the fine lines between what might be classified as a militia in one conflict, a rebel in another, or a terrorist in a third. Drawing on the work of Carl von Clausewitz, this book provides a conceptually stable and analytically sound new typology on combatants. Analysing the relationships between state and society, and drawing on Clausewitz's Trinity of passion, chance, and reason, the book presents a set of five types of armed actors: Professionals, Praetorians, Militias, Insurgents, and Mercenaries. Each type is developed through a close reading of foundational theoretical texts, reviews of contemporary studies, and a historical analysis of their unique characteristics. Unlike a reductionist binary perspective, this typology accounts for the dynamic, complex, and evolving relationships of these actors with the state and society. A typology of combatants in conflicts in Africa can provide avenues for more in-depth analysis of such conflicts and holds implications for Security Sector Reform projects and other peace-building programmes. As such, this book will be an essential reference for scholars and students of African Politics and Military and Security Studies.

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  • Price: 32.95 EUR excl. shipping
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  Combatants in African Conflicts (eBook, ePUB)

  This book focuses on the different types of combatants in conflicts in Africa, exploring the fine lines between what might be classified as a militia in one conflict, a rebel in another, or a terrorist in a third. Drawing on the work of Carl von Clausewitz, this book provides a conceptually stable and analytically sound new typology on combatants. Analysing the relationships between state and society, and drawing on Clausewitz's Trinity of passion, chance, and reason, the book presents a set of five types of armed actors: Professionals, Praetorians, Militias, Insurgents, and Mercenaries. Each type is developed through a close reading of foundational theoretical texts, reviews of contemporary studies, and a historical analysis of their unique characteristics. Unlike a reductionist binary perspective, this typology accounts for the dynamic, complex, and evolving relationships of these actors with the state and society. A typology of combatants in conflicts in Africa can provide avenues for more in-depth analysis of such conflicts and holds implications for Security Sector Reform projects and other peace-building programmes. As such, this book will be an essential reference for scholars and students of African Politics and Military and Security Studies.

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  • Price: 32.95 EUR excl. shipping
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  Hard Times , Hörbuch, Digital, ungekürzt, 637min

  Exclusively from Audible Despite the title, Dickens's portrayal of early industrial society is less relentlessly grim than that in novels by contemporaries such as Elizabeth Gaskell or Charles Kingsley. Hard Times weaves the tale of Thomas Gradgrind, a hard-headed politician who raises his children Louisa and Tom without love and to have no empathy, their lives completely devoid of beauty, culture, or imagination. Only after a series of crises does their father realise that the manner in which he raised his children has ruined their lives. Other characters include Sissy, the circus girl with love to spare who is deserted and adopted into the Gradgrind family, as well as the honest mill worker Stephen Blackpool and the bombastic mill owner Josiah Bounderby. The story is a vehement condemnation of industrialisation and its dehumanising effects on its workers and communities in mid-19th-century England. George Orwell praised Dickens and the novel for its 'generous anger.' Concentrated and compressed in its narrative form, Hard Times is at once a fable, an audiobook of ideas, and a social story that seeks to engage directly and analytically with political issues. It may be one of Dickens's shortest works but it is also one of his triumphs. One of eight children, Dickens came from a very poor family, with his father eventually being sent to debtor's prison. At the age of 12, Dickens was forced to start work in a blacking factory in order to help clear the family debt. His troublesome childhood likely contributed to some of the novel's ideas and lent him a sympathetic voice for the poor. Due to his vivid depictions of the poverty-stricken, 'Dickensian' has ingrained itself in the English language, becoming the choice word to describe an unacceptable level of poverty. Narrator Biography Martin Jarvis is one of Britain's most admired actors. His audiobook output is legendary. He is ungekürzt. Language: English. Narrator: Martin Jarvis. Audio sample: https://samples.audible.de/bk/bbcw/000896/bk_bbcw_000896_sample.mp3. Digital audiobook in aax.

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  • Price: 9.95 EUR excl. shipping
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  Arguments: Why We Argue and How You Can Use the Art of Persuasion to Effectively Defend Your Opinion , Hörbuch, Digital, ungekürzt, 129min

  Learn the art of persuasion to effectively defend an opinion! Here's a fact, arguments will always happen. We have all had arguments at some point or another. Some you win and some you lose, and often sometimes you lose arguments not because your point was wrong or ill-considered but because you have not effectively made your point clear enough. Have you ever been in an argument or heated debate and found yourself becoming flustered and unable to think straight? You may have even had all the facts stacked in your favor but just have not been able to communicate them! Well this guide can change all that and arm you with all the required information to communicate your point calmly and effectively. Arguing is a part of our relationships with other people, whether it is with our lifelong partner or just a stranger on the street. With debate and verbal conflict being so common, it's well worth training yourself to master the art of argumentation. This guide will provide you with a strong insight into this rare skill. Whilst by no means an exhaustive resource, by having listened to this guide you should understand everything you need to know to be comfortable arguing with anyone from a lover to an angry colleague. On your journey through this book you will have dipped and dived through formal logic and academic arguments, learning how to present and consider your ideas analytically along the way. You will have also jumped into the world of confrontational arguments, discovering how to defuse, calm and communicate in your conflict with those you know. Further down the path, you will take a crash course in body language and non-verbal communication, gaining the ability to alter and recognize the hidden signals people display. Finally, you will also learn how to appreciate the differences in approach when dealing with conflicts between colleagues, friends, family members and strangers. ungekürzt. Language: English. Narrator: Lee Ahonen. Audio sample: https://samples.audible.de/bk/acx0/082077/bk_acx0_082077_sample.mp3. Digital audiobook in aax.

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  • Price: 9.95 EUR excl. shipping
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  Mental Models Revealed: Why You Should Not Only Rely on Them and What to Do Instead (Critical Thinking for Logical Fallacies and Problem Solving) , Hörbuch, Digital, ungekürzt, 182min

  Do you find it increasingly difficult to step out of your comfort zone or think outside of the box?Do you constantly question your decision making?Or do you want to become more flexible and open-minded in all areas of your life?If you answered yes to any of the questions above, this guide will change your life for the better.Are you ready to begin?Mental models are natural and help us make decisions, assess situations, and conserve our energy.But sometimes those models turn into a trap that hurts your mental game, rather than helps it.Our beliefs, ideas, values, perceptions, and experiences change over time, so shouldn’t the structures in our mind also evolve?This guide teaches you how to utilize those mental models when it is appropriate but question when and how you use them when they trap you in.It’s time to break apart and rebuild the maps you have created in your mind.Based on psychological research, this guide reveals the different ways we think, such as emotionally, analytically, and logically, and it teaches you how to use each mindset when making decisions.Daniel Kahneman and Amos Tversky’s 1973 research on “Judgement Under Certainty: Biases and Heuristics” through the Oregon Research Institute provides foundational evidence for us.They show how mental models interfere with humans’ ability to gather new information and build patterns of thought, making it difficult to assess new problems and decisions.With this guide, you’ll discover:Concrete strategies, broken into steps, for how to break apart the maps and structures in your mindThe triggers and signs for when mental models are engaging and trapping youWhy your prejudices and stereotypes are hurting you more than you thinkThe absolute worst thing you are doing that is stopping your open-mindednessThe tools you need to up your game ungekürzt. Language: English. Narrator: Tom Haig. Audio sample: https://samples.audible.de/bk/acx0/173539/bk_acx0_173539_sample.mp3. Digital audiobook in aax.

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  • Price: 9.95 EUR excl. shipping
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  Data Analytics for Businesses 2019: Master Data Science with Optimised Marketing Strategies using Data Mining Algorithms: Artificial Intelligence, Machine Learning, Predictive Modelling and More , Hörbuch, Digital, ungekürzt, 206min

  Are you looking for new ways to grow your business with resources you already have? Do you want to know how the big players like Netflix, Amazon, and Shopify use data analytics to multiply their growth? Keep reading to learn how to use data analytics to maximize your business.Yes, you have customers that love your product. However, you’re having trouble finding new customers and captivating their attention. How do I stand out in a crowd of businesses? How do I target my perfect client and make them choose me? If this sounds like you, Data Analytics for Businesses 2019 is the guide you need. This book will walk you through the fundamental principles of data science and how to apply the “data analytic mind-set” when approaching your business. You will learn how to extract valuable insights from data sources you already have and make informed business decisions to help you achieve your goals.With real world examples of how to apply data analytics to your business, this book does what others fail to do. Break the process down step by step, so you can optimize unique parts of your business, such as improving customer loyalty or reducing churn. In this book you will learn:Why every company should be leveraging data analytics.The difference between big data, data science and data analytics.How to achieve your goals by applying data-analytical thinking to your business.The recommended data mining techniques for each of your business goals.The most important thing to remember when extracting knowledge from your data.How to use data analytics to improve brand loyalty and customer experience. By the end of this book, you’ll be able to think analytically and make informed business decisions. This book illustrates how easy it is to find success by just applying a few principles. Stop reading this description, and start listening to Data Analytics for Businesses 2 ungekürzt. Language: English. Narrator: Jeffrey Michael Bella. Audio sample: https://samples.audible.de/bk/acx0/148609/bk_acx0_148609_sample.mp3. Digital audiobook in aax.

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  • Price: 9.95 EUR excl. shipping
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  Differential Equations with Mathematica (eBook, ePUB)

  Differential Equations with Mathematica, Fifth Edition uses the fundamental concepts of the popular platform to solve (analytically, numerically, and/or graphically) differential equations of interest to students, instructors, and scientists. Mathematica's diversity makes it particularly well suited to performing calculations encountered when solving many ordinary and partial differential equations. In some cases, Mathematica's built-in functions can immediately solve a differential equation by providing an explicit, implicit, or numerical solution. In other cases, Mathematica can be used to perform the calculations encountered when solving a differential equation. Because one goal of elementary differential equations courses is to introduce students to basic methods and algorithms so that they gain proficiency in them, nearly every topic covered this book introduces basic commands, also including typical examples of their application. A study of differential equations relies on concepts from calculus and linear algebra, so this text also includes discussions of relevant commands useful in those areas. In many cases, seeing a solution graphically is most meaningful, so the book relies heavily on Mathematica's outstanding graphics capabilities. Demonstrates how to take advantage of the advanced features of Mathematica Introduces the fundamental theory of ordinary and partial differential equations using Mathematica to solve typical problems of interest to students, instructors, scientists, and practitioners in many fields Showcases practical applications and case studies drawn from biology, physics, and engineering

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  • Price: 67.95 EUR excl. shipping
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  Beautiful Thoughts From French and Italian Authors

  Beautiful Thoughts From French and Italian Authors ab 39.9 € als Taschenbuch: with English translations and lives of the authors an English index of subjects analytically arranged also numerous references to parallel passages from Latin Greek and English authors. Aus dem Bereich: Bücher, English, International, Gebundene Ausgaben,

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  • Price: 39.90 EUR excl. shipping

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