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Showing 54,201 through 54,225 of 54,344 results

50 Fantastic Ideas for Exploring Shape and Pattern (50 Fantastic Ideas)

by Alison Hutchison

50 Fantastic Ideas for Exploring Shape and Pattern features activities and games filled with rich contexts for learning and discussion, as well as fun opportunities for consolidation and problem-solving.Alison Hutchison draws on her wealth of experience to present ideas in line with the Early Learning Goals for investigating shape and pattern in the world around us. She focuses on helping young children to make connections and develop language, knowledge and understanding of shape and pattern. Whether children build with fabric blocks to create patterns or explore symmetry while playing with natural materials, the easy-to-prepare activities in this book facilitate engaging learning opportunities for children's ideas and interests to be explored.

50 Fantastic Ideas for Exploring Number (50 Fantastic Ideas)

by Alison Hutchison Alistair Bryce-Clegg

Developing a secure understanding of number in the Early Years is key to ensuring number confidence for future stages of learning. A wide variety of meaningful hands-on experiences are required to develop a child's deep understanding of number. 50 Fantastic Ideas for Exploring Number presents ideas that are all about doing – to not only stimulate the senses, but to also provoke thinking and talking, allow questions to be asked, and ensure that links are made between number concepts and the real world. The ideas require little preparation beforehand, can be used by practitioners without any specific expertise in teaching early number, and include easy-to-source materials. Each area of early number sense is covered from adding on and taking away to number stories, identifying and writing numbers.Alison Hutchison draws on her wealth of experience to present 50 ideas and experiences that make numbers fun and accessible so that, as they explore and investigate, children are fully engaged partners in their learning at this crucial early stage of their number journey.

4th Refinement Workshop: Proceedings of the 4th Refinement Workshop, organised by BCS-FACS, 9–11 January 1991, Cambridge (Workshops in Computing)

by Joseph M. Morris Roger C. Shaw

This volume contains the proceedings ofthe 4th Refinement Workshop which was organised by the British Computer Society specialist group in Formal Aspects of Computing Science and held in Wolfson College, Cambridge, on 9-11 January, 1991. The term refinement embraces the theory and practice of using formal methods for specifying and implementing hardware and software. Most of the achievements to date in the field have been in developing the theoretical framework for mathematical approaches to programming, and on the practical side in formally specifying software, while more recently we have seen the development of practical approaches to deriving programs from their speCifications. The workshop gives a fair picture of the state of the art: it presents new theories for reasoning about software and hardware and case studies in applying known theory to interesting small-and medium-scale problems. We hope the book will be Of interest both to researchers in formal methods, and to software engineers in industry who want to keep abreast of possible applications of formal methods in industry. The programme consisted both of invited talks and refereed papers. The invited speakers were Ib S0rensen, Jean-Raymond Abrial, Donald MacKenzie, Ralph Back, Robert Milne, Mike Read, Mike Gordon, and Robert Worden who gave the introductory talk. This is the first refinement workshop that solicited papers for refereeing, and despite a rather late call for papers the response was excellent.

4th Party Cyber Logistics for Air Cargo (International Series in Operations Research & Management Science #73)

by Sung-Chi Chu Lawrence C. Leung Yer Van Hui Waiman Cheung

4th Party Cyber Logistics For Air Cargo is a technical discussion for researchers and practitioners to understand the issues, models, and future directions of air cargo logistics in the cyber era. This book introduces the many aspects of planning and control of air cargo logistics processes in an e-Business environment. The authors approach this subject matter from the perspective of the logistics service providers. There is tremendous potential of achieving industry-wide collaboration between agents of the air cargo industry via an e-Business community platform. At the same time, there are many intellectually challenging problems regarding the architecture, ownership, decision support environment, and knowledge management of such an e-Business platform. The authors provide an evolutionary view to conceptualize the developments of websites where e-Commerce activities and e-Business activities co-exist. Four Web eras are detailed, providing an impetus for the development of frameworks of an e-Business platform for air cargo logistics, or e-Platform. The conceptual framework captures the new elements in cyber logistics and what the framework can do for the industry.

4000 Jahre Zahlentheorie: Geschichte - Kulturen - Menschen I. Von Babel bis Abel (Vom Zählstein zum Computer)

by Franz Lemmermeyer

​4000 Jahre Zahlentheorie nimmt die Leser und Leserinnen mit auf eine Reise durch die Geschichte eines lange Zeit belächelten Gebiets der Mathematik. Im ersten Teil wird das Auf und Ab mathematischer Kulturen geschildert, beginnend mit den ersten zahlentheoretischen Fragestellungen der Babylonier, dem Studium von Primzahlen und vollkommenen Zahlen bei den Griechen und in der islamischen Welt, bis zu den Untersuchungen rechtwinkliger Dreiecke mit ganzzahligen Seitenlängen in Indien und China. Die Erfindung des Buchdrucks und die Wiederentdeckung der griechischen Mathematik, insbesondere des Werks von Diophant, führte zu einem ungeheuren Aufschwung in der Zahlentheorie unter den Händen von Fermat, Euler, Lagrange und Legendre bis hin zu Gauß und seinem Jahrhundertwerk, den Disquisitiones Arithmeticae. Der dritte Teil beschäftigt sich mit der Generation von Zahlentheoretikern nach Gauß, die sich intensiv mit den Disquisitiones auseinandergesetzt haben und welche mit der Anwendung analytischer Methoden Ergebnisse erzielt haben, welche mit elementaren Techniken nur schwer oder gar nicht erreichbar sind; dazu gehören Dirichlet, Jacobi, Abel und Eisenstein. Während die Zahlentheorie bis Fermat nur wenige Kenntnisse der Mathematik verlangt, benötigt man für das Verständnis des Eulerschen Werks bereits Vertrautheit mit der Oberstufenanalysis, danach punktuell auch deutlich mehr.

4000 Jahre Algebra: Geschichte – Kulturen – Menschen (Vom Zählstein zum Computer)

by H.-W. Alten A. Djafari Naini B. Eick M. Folkerts H. Schlosser K.-H. Schlote H. Wesemüller-Kock H. Wußing

Die Entstehung, Entwicklung und Wandlung der Algebra als Teil unserer Kulturgeschichte beschreiben Wissenschaftler von fünf Universitäten. Ursprünge, Anstöße und die Entwicklung algebraischer Begriffe und Methoden werden in enger Verflechtung mit historischen Ereignissen und menschlichen Schicksalen dargestellt. Ein erster Spannungsbogen reicht von den Frühformen des Rechnens mit natürlichen Zahlen und Brüchen zur Lösung einfacher Gleichungen bis hin zur Lösung von Gleichungen dritten und vierten Grades in der Renaissance. Von den misslungenen Versuchen zur Lösung allgemeiner Gleichungen höheren Grades im 17 Jh. zieht sich ein weiterer Bogen zu den berühmten Beweisen des Fundamentalsatzes der Algebra durch Gauß und den genialen Ideen des jungen Galois. Die Wandlung der Algebra von der Gleichungslehre zur Theorie algebraischer Strukturen wird danach ebenso beschrieben, wie die völlig neuen Akzente, die die Computeralgebra in neuester Zeit gesetzt hat. Viele neue farbige Abbildungen bereichern die inhaltlichen Aktualisierungen und Textergänzungen.

40 Years of Research on Rent Seeking 2: Applications: Rent Seeking in Practice


The last survey of the rent-seeking literature took place more than a decade ago. Since that time a great deal of new research has been published in a wide variety of journals, covering a wide variety of topics. The scope of that research is such that very few researchers will be familiar with more than a small part of contemporary research, and very few libraries will be able to provide access to the full breadth of that research. This two-volume collection provides an extensive overview of 40 years of rent-seeking research. The volumes include the foundational papers, many of which have not been in print for two decades. They include recent game-theoretic analyses of rent-seeking contests and also appUcations of the rent-seeking concepts and methodology to economic regulation, international trade policy, economic history, poUtical com­ petition, and other social phenomena. The new collection is more than twice as large as any previous collection and both updates and extends the earUer surveys. Volume I contains previously pubhshed research on the theory of rent-seeking contests, which is an important strand of contemporary game theory. Volume II contains previously published research that uses the theory of rent-seeking to an­ alyze a broad range of public policy and social science topics. The editors spent more than a year assembling possible papers and, although the selections fill two large volumes, many more papers could have been included.

40 Years of Research on Rent Seeking 1: Theory of Rent Seeking


The last survey of the rent-seeking literature took place more than a decade ago. Since that time a great deal of new research has been published in a wide variety of journals, covering a wide variety of topics. The scope of that research is such that very few researchers will be familiar with more than a small part of contemporary research, and very few libraries will be able to provide access to the full breadth of that research. This two-volume collection provides an extensive overview of 40 years of rent-seeking research. The volumes include the foundational papers, many of which have not been in print for two decades. They include recent game-theoretic analyses of rent-seeking contests and also appHcations of the rent-seeking concepts and methodology to economic regulation, international trade policy, economic history, poUtical com­ petition, and other social phenomena. The new collection is more than twice as large as any previous collection and both updates and extends the earlier surveys. Volume I contains previously published research on the theory of rent-seeking contests, which is an important strand of contemporary game theory. Volume II contains previously pubHshed research that uses the theory of rent-seeking to an­ alyze a broad range of public policy and social science topics. The editors spent more than a year assembling possible papers and, although the selections fill two large volumes, many more papers could have been included.

40 Puzzles and Problems in Probability and Mathematical Statistics (Problem Books in Mathematics)

by Wolf Schwarz

This book is based on the view that cognitive skills are best acquired by solving challenging, non-standard probability problems. Many puzzles and problems presented here are either new within a problem solving context (although as topics in fundamental research they are long known) or are variations of classical problems which follow directly from elementary concepts. A small number of particularly instructive problems is taken from previous sources which in this case are generally given. This book will be a handy resource for professors looking for problems to assign, for undergraduate math students, and for a more general audience of amateur scientists.

4-Manifolds (Oxford Graduate Texts in Mathematics)

by Selman Akbulut

This book presents the topology of smooth 4-manifolds in an intuitive self-contained way, developed over a number of years by Professor Akbulut. The text is aimed at graduate students and focuses on the teaching and learning of the subject, giving a direct approach to constructions and theorems which are supplemented by exercises to help the reader work through the details not covered in the proofs. The book contains a hundred colour illustrations to demonstrate the ideas rather than providing long-winded and potentially unclear explanations. Key results have been selected that relate to the material discussed and the author has provided examples of how to analyse them with the techniques developed in earlier chapters.

4-Manifolds (Oxford Graduate Texts in Mathematics)

by Selman Akbulut

This book presents the topology of smooth 4-manifolds in an intuitive self-contained way, developed over a number of years by Professor Akbulut. The text is aimed at graduate students and focuses on the teaching and learning of the subject, giving a direct approach to constructions and theorems which are supplemented by exercises to help the reader work through the details not covered in the proofs. The book contains a hundred colour illustrations to demonstrate the ideas rather than providing long-winded and potentially unclear explanations. Key results have been selected that relate to the material discussed and the author has provided examples of how to analyse them with the techniques developed in earlier chapters.

A 3D Visualization Teaching-Learning Trajectory for Elementary Grades Children (SpringerBriefs in Education)

by Jacqueline Sack Irma Vazquez

This monograph describes the development and use of a 3D visualization teaching-learning trajectory for elementary age learners. Using design research principles, the authors developed this trajectory using the NCTM recommendations and the Spatial Operational Capacity (SOC) theoretical framework to guide lesson development. The SOC framework utilizes actual 3D models, 2D and abstract representations of the actual models, and, a dynamic computer interface, the Geocadabra Construction Box, which integrates these representations dynamically in real time. The work begins with describing the theoretical SOC frameworks that guided the study, the inquiry-based learning focus, the research method used, and informal pre-program interviews with participant children. The next chapter describes introductory activities used to orient the children to the 3D objects that they used throughout the program. The book then focuses on the development of abstract top-view numeric plan representations leading to representations of rectangular prisms, followed by front-side-top view representations. The last chapter shows how numeracy was integrated into the program to support the demanding official mathematics curriculum.

3D-Spannungsanalyse von linear elastisch homogenen Körpern: Analytische Lösungsmethoden für kontinuumsmechanische Probleme (essentials)

by Manfred Hahn Rafael D. Jarzabek

Manfred Hahn und Rafael D. Jarzabek stellen zwei neue analytische 3D-Lösungen in der Kontinuumsmechanik vor. Diese analytischen Lösungen können zur Verifikation von numerischen Lösungsmethoden herangezogen werden. Beginnend wird in diesem essential die geschichtliche Entwicklung der analytischen Lösungsmethoden in der Kontinuumsmechanik für den 2D- und 3D-Raum und die daraus entstandenen Probleme aufgeführt. Da die Weiterentwicklung der analytischen Methoden aufgrund der mathematischen Schwierigkeiten vor einigen Jahrzehnten stagnierte und die Anwender numerische Methoden wegen der Entwicklung des Computers bevorzugten, wurden fortwährend nur noch numerische Lösungen für spezielle Probleme berechnet. Heute ist die Mathematik aber weiter, sodass nun doch neue analytische Lösungen gefunden werden können. Dazu stellen die Autoren die ursprünglichen Lösungsansätze vor und vergleichen sie mit dem neuen Lösungsverfahren von Pagano.

3D shapes - representations (tactile)

by Rnib

This two-page diagram shows a series of three-dimensional shapes - depicting their end and side views. The shapes included are: Triangular prism, Circular prism Tetrahedron and Cone. Braille labels and simple shapes guide the user through the image.

3D shapes by view (tactile)

by Adrian Farnsworth

Each of these six pages shows a shape with front, side and plan views titled in braille.

3D shapes - a triangular prism (tactile)

by Rnib

This diagram shows the front and side view of a triangular prism, to give the user an idea of its three-dimensional shape. Braille labels and simple shapes guide the user through the image.

3D shapes - a shape made up of 5 multilink cubes (tactile)

by Rnib

This diagram shows a shape made up of cubes: the side view, front view, and view from above. Labels explain how each view appears, and simple shapes also show the user each view.

3D shape nets (tactile)

by Adrian Farnsworth

These seven pages have a different net on each page. Each net can be cut out and made up into a 3D shape.

3D shape - drawn using isometric paper (tactile)

by Rnib

This diagram shows a three-dimensional shape, depicted in thick black line, against isometric paper. The graph used to draw the shape is shown as thinner, dotted lines in order to differentiate between the shape.

3D Shape Analysis: Fundamentals, Theory, and Applications

by Hamid Laga Yulan Guo Hedi Tabia Robert B. Fisher Mohammed Bennamoun

An in-depth description of the state-of-the-art of 3D shape analysis techniques and their applications This book discusses the different topics that come under the title of "3D shape analysis". It covers the theoretical foundations and the major solutions that have been presented in the literature. It also establishes links between solutions proposed by different communities that studied 3D shape, such as mathematics and statistics, medical imaging, computer vision, and computer graphics. The first part of 3D Shape Analysis: Fundamentals, Theory, and Applications provides a review of the background concepts such as methods for the acquisition and representation of 3D geometries, and the fundamentals of geometry and topology. It specifically covers stereo matching, structured light, and intrinsic vs. extrinsic properties of shape. Parts 2 and 3 present a range of mathematical and algorithmic tools (which are used for e.g., global descriptors, keypoint detectors, local feature descriptors, and algorithms) that are commonly used for the detection, registration, recognition, classification, and retrieval of 3D objects. Both also place strong emphasis on recent techniques motivated by the spread of commodity devices for 3D acquisition. Part 4 demonstrates the use of these techniques in a selection of 3D shape analysis applications. It covers 3D face recognition, object recognition in 3D scenes, and 3D shape retrieval. It also discusses examples of semantic applications and cross domain 3D retrieval, i.e. how to retrieve 3D models using various types of modalities, e.g. sketches and/or images. The book concludes with a summary of the main ideas and discussions of the future trends. 3D Shape Analysis: Fundamentals, Theory, and Applications is an excellent reference for graduate students, researchers, and professionals in different fields of mathematics, computer science, and engineering. It is also ideal for courses in computer vision and computer graphics, as well as for those seeking 3D industrial/commercial solutions.

3D Shape Analysis: Fundamentals, Theory, and Applications

by Hamid Laga Yulan Guo Hedi Tabia Robert B. Fisher Mohammed Bennamoun

An in-depth description of the state-of-the-art of 3D shape analysis techniques and their applications This book discusses the different topics that come under the title of "3D shape analysis". It covers the theoretical foundations and the major solutions that have been presented in the literature. It also establishes links between solutions proposed by different communities that studied 3D shape, such as mathematics and statistics, medical imaging, computer vision, and computer graphics. The first part of 3D Shape Analysis: Fundamentals, Theory, and Applications provides a review of the background concepts such as methods for the acquisition and representation of 3D geometries, and the fundamentals of geometry and topology. It specifically covers stereo matching, structured light, and intrinsic vs. extrinsic properties of shape. Parts 2 and 3 present a range of mathematical and algorithmic tools (which are used for e.g., global descriptors, keypoint detectors, local feature descriptors, and algorithms) that are commonly used for the detection, registration, recognition, classification, and retrieval of 3D objects. Both also place strong emphasis on recent techniques motivated by the spread of commodity devices for 3D acquisition. Part 4 demonstrates the use of these techniques in a selection of 3D shape analysis applications. It covers 3D face recognition, object recognition in 3D scenes, and 3D shape retrieval. It also discusses examples of semantic applications and cross domain 3D retrieval, i.e. how to retrieve 3D models using various types of modalities, e.g. sketches and/or images. The book concludes with a summary of the main ideas and discussions of the future trends. 3D Shape Analysis: Fundamentals, Theory, and Applications is an excellent reference for graduate students, researchers, and professionals in different fields of mathematics, computer science, and engineering. It is also ideal for courses in computer vision and computer graphics, as well as for those seeking 3D industrial/commercial solutions.

3D Robotic Mapping: The Simultaneous Localization and Mapping Problem with Six Degrees of Freedom (Springer Tracts in Advanced Robotics #52)

by Andreas Nüchter

Focuses on acquiring spatial models of physical environments through mobile robots The robotic mapping problem is commonly referred to as SLAM (simultaneous localization and mapping). 3D maps are necessary to avoid collisions with complex obstacles and to self-localize in six degrees of freedom (x-, y-, z-position, roll, yaw and pitch angle) New solutions to the 6D SLAM problem for 3D laser scans are proposed and a wide variety of applications are presented

3D Origami Art

by Jun Mitani

Easily Create Origami with Curved Folds and Surfaces Origami—making shapes only through folding—reveals a fascinating area of geometry woven with a variety of representations. The world of origami has progressed dramatically since the advent of computer programs to perform the necessary computations for origami design. 3D Origami Art presents the design methods underlying 3D creations derived from computation. It includes numerous photos and design drawings called crease patterns, which are available for download on the author’s website. Through the book’s clear figures and descriptions, readers can easily create geometric 3D structures out of a set of lines and curves drawn on a 2D plane. The author uses various shapes of sheets such as rectangles and regular polygons, instead of square paper, to create the origami. Many of the origami creations have a 3D structure composed of curved surfaces, and some of them have complicated forms. However, the background theory underlying all the creations is very simple. The author shows how different origami forms are designed from a common theory.

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