This unified approach to polymer materials science is divided in three major sections: - Basic Principles - covering historical background, basic material properties, molecular structure, and thermal properties of polymers. - Influence of Processing on Properties - tying processing and design by discussing rheology of polymer melts, mixing and processing, the development of anisotropy, and solidification processes. - Engineering Design Properties - covering the different properties that need to be considered when designing a polymer component - from mechanical properties to failure mechanisms, electrical properties, acoustic properties, and permeability of polymers. A new chapter introducing polymers from a historical perspective not only makes the topic less dry, but also sheds light on the role polymers played, for better and worse, in shaping today's industrial world. The first edition was praised for the vast number of graphs and data that can be used as a reference. A new table in the appendix containing material property graphs for several polymers further strengthens this attribute. The most important change made to this edition is the introduction of real-world examples and a variety of problems at the end of each chapter.
This unified approach to polymer materials science is divided in three major sections: - Basic Principles - covering historical background, basic material properties, molecular structure, and thermal properties of polymers. - Influence of Processing on Properties - tying processing and design by discussing rheology of polymer melts, mixing and processing, the development of anisotropy, and solidification processes. - Engineering Design Properties - covering the different properties that need to be considered when designing a polymer component - from mechanical properties to failure mechanisms, electrical properties, acoustic properties, and permeability of polymers. A new chapter introducing polymers from a historical perspective not only makes the topic less dry, but also sheds light on the role polymers played, for better and worse, in shaping today's industrial world. The first edition was praised for the vast number of graphs and data that can be used as a reference. A new table in the appendix containing material property graphs for several polymers further strengthens this attribute. The most important change made to this edition is the introduction of real-world examples and a variety of problems at the end of each chapter.
Im Mittelpunkt dieser Untersuchung stehen die turkischen IntensivAdjektive (yeni - yepyeni, mavi - masmavi, sert - semsert, temiz - tertemiz). Die Regeln ihrer Bildung waren bisher unbekannt. Durch Anwendung morphophonologischer Analysemethoden konnten schliesslich im Rahmen dieser Arbeit auf der Basis eines umfassenden Korpus die Bildungsregeln herausgefunden, beschrieben und erklart werden. Ihnen liegt das Kontrastprinzip der Identitatsvermeidung zugrunde, d.h. die Bildung dieser emphatischen Adjektive beruht auf der Vorschaltung eines Morphems, das durch besondere Segmentierung - Reduplikation einer (Teil)Silbe, die durch kontrastreiches Zusatzmaterial aus der Menge der Laute {p, s, m, r} geschlossen wird - und durch eine fur das Turkische aussergewohnliche Akzentuierung - Betonung der ersten Silbe - jenen Signalcharakter erhalt, der der beabsichtigten Wirkung der Emphase Rechnung tragt. Zum ersten Mal wird hier "Kontrast" nicht nur qualitativ verstanden, sondern auf der Basis von Artikulationsort und art der Konsonanten auf quantitative Weise definiert und so objektiviert.Um zusatzliche Evidenz fur die gefundene Losung dieses alten turkischen Problems zu bekommen, wurden 1. samtliche Reduplikationsformen des Turkischen bestimmt, klassifiziert und zum Vergleich herangezogen, 2. umfangreiche Lautstatistiken erstellt, 3. zahlreiche synchrone und diachrone Untersuchungen angestellt und 4. ein Massentest mit turkischen Muttersprachlern zur Verifizierung der gefundenen Regeln durchgefuhrt.
One of the great classics of Western thought develops concept that history is not chance but a rational process, operating according to the laws of evolution, and embodying the spirit of freedom.
Macromolecules" provides a broad survey of the entire subject; integrated representations of chemistry, physics, and technology; precise descriptions and definitions of basic phenomena; and balanced treatments of facts and theory. The book series thus intends to bridge the gap between introductory textbooks and the highly specialized texts and monographs that cover only part of polymer science and technology. Volume I is concerned with the fundamentals of chemical structure and principles of synthesis of macromolecules: constitution, configuration, conformation, polymerization equilibria, polymerization mechanisms (ionic, coordination, free-radical, step reactions, including solid-state and biochemical polymerizations), polymer reactions, and strategies for defined polymer architectures. Volume II discusses individual polymers and their industrial syntheses, Volume III the fundamentals of physical structures and properties, and Volume IV the processing and application of polymers as plastics, fibers, elastomers, thickeners, etc. The world of macromolecules in a nutshell.
This book delivers an introduction to the theory programme called structure-genetic sociology. I developed this theory programme in the past 30 years. In the meantime, I have written ten books and numerous articles about the subject. The programme mainly bases on developmental psychology and has worked it out to a theory of the evolution of humankind. It encompasses a theory of social change and social evolution, a theory of the development of economy, society, culture, sciences, religion, morals, law, and manners. The fact of the anthropological evolution of humankind from lower, childlike anthropological stages to more elaborated stages is the most groundbreaking and fascinating fact in all social sciences and humanities. It is the only phenomenon within humanities and social sciences whose relevance and importance corresponds to the fact of biological evolution provided by Darwin ́s evolutionary theory. This fact forms the kernel of the entire theory programme. Structure-genetic sociology is the theoretical heir of the outstanding classical approaches such as the classical sociologies, the classical British anthropology, the ethnology of Lucien Lévy-Bruhl, the developmental psychology of Jean Piaget, and the philosophy of symbolic forms of Ernst Cassirer. We can understand these classical achievements only against the background of the more elaborated empirical foundations and theoretical structures of my structure-genetic sociology. It helps to verify, to correct, to develop, and to improve the best traditions of social sciences and humanities. Structure-genetic sociology formulates the essence of three hundred years of social sciences and humanities.
York experienced great changes following World War II. People began moving from the city to the suburbs, and many department stores, like Bear's, Wiest's, Jack's, and Gregory's, closed. Long-standing companies such as AMF and York Air Conditioning were sold or moved, while banks, industries, and businesses merged. The York County Shopping Center opened on the East End, attracting customers who had formerly shopped downtown. WSBA TV went on the air in 1952, starting a new era in communication and a business empire that still has a strong presence today. The band Live grew from a group of local high school students to well-known musicians that graced the cover of Rolling Stone. Jeff Koons became one of the most celebrated artists in the world, Kim Bracey became the first African American mayor, and York businessman Tom Wolf became governor. York continues to celebrate its rich heritage as the "Factory Capital of the World.
In the era of cybernetics, architects suddenly encountered entirely new ways of operating technical systems: buildings could be calculated using circuit diagrams, creativity and imagination were confronted with the technical intelligence of thinking machines. Architects found themselves in the crosshairs of cybernetics. At stake was nothing less than the continued existence of the architect’s inventive intelligence in a techno-scientific world. Today, we see computing machines, once so heavy, losing weight while gaining power. Computers are fully colonizing the human environment, creating their own digital ecosystems, and giving rise to forms of society and ways of being that cannot even be explained without big data. Available for the first time in English as a new edition.
The increasing demand for capacity has driven the telecommunications community to focus on transmission studies with higher data rates and increasing spectral efficiency. However, high data rates and high SE are particularly challenging for transoceanic cable systems due to their extremely long transmission distances. With the advent of digital coherent receivers, the channel data rate has increased from 40Gb/s to 100Gb/s and beyond; the spectral efficiency has increased from 80% (0.8bits/s/Hz) to the most recent 600% (6bits/s/Hz); and the total capacity has increased from 6Tb/s to the most recent 30Tb/s. This chapter gives an overview of the most recent advances in undersea transmission technology since the last edition of Optical Fiber Telecommunications in 2007 focusing on coherent technology and 100Gb/s transmission.
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