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Coins --- Coins - Hungary. --- Coins - Carpathian Mountains Region.
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The present volume “New Trends in Lithium Niobate: From Bulk to Nanocrystals” contains the materials of a Special Issue of the MDPI journal Crystals dedicated to the memory of Prof. Dr. Ortwin F. Schirmer and provides a new synopsis of his research focusing on LiNbO3. It also includes recent developments, exemplifying the continued interest in this outstanding ferroelectric, non-linear optical and holographic crystal as a workhorse for testing and realizing new ideas and applications.This book starts with reviews on intrinsic and extrinsic crystal defects in LiNbO3 of single-crystal, thin-film or nano-powder forms, studied by various optical, magnetic resonance and nuclear methods, clarifying in particular the reasons for the suppression of anion vacancy formation upon thermal reduction, mechano-chemical processing or irradiations of various types. The reviews are followed by research papers on the experimental and theoretical investigation of small polarons, together with recent results on the properties of Li(Nb,Ta)O3 mixed crystals. Among the various contributions dealing with nonlinear optical applications, papers on device development, entangled photon pair generation and thin films on the Lithium Niobate On Insulator (LNOI) platform can also be found.
lithium niobate --- small polaron hopping --- transient absorption --- mode-locked laser --- nonlinear mirror mode locking --- lithium tantalate --- crystal structure --- chemical composition --- ferroelectrics --- second harmonic generation --- lead-free piezoelectrics --- intrinsic defects --- extrinsic defects --- elemental doping --- ferromagnetism --- diluted-magnetic oxides --- LiNbO3 --- LiTaO3 --- oxide crystals --- lanthanides --- luminescence --- LNOI --- ferroelectric domains --- domain-wall conduction --- AFM --- thin film lithium niobate --- TFLN --- x-cut LN --- domain walls --- piezoresponse force microscopy --- second-harmonic generation --- Raman scattering --- electro-optics --- whispering gallery resonators --- polarons --- photorefractivity --- Marcus-Holstein’s theory --- Monte Carlo simulations --- strontium titanate --- self-trapped electrons --- oxygen vacancies --- defects --- impurity --- intrinsic defect --- paramagnetic ion --- electron paramagnetic resonance --- electron nuclear double resonance --- lithium vacancy --- lithium --- niobate --- epitaxy --- thin film --- liquid phase epitaxy --- molecular beam epitaxy --- sputtering --- pulsed laser deposition --- chemical vapor deposition --- lithium niobate-tantalate --- piezoelectric --- acoustic --- high-temperature --- sensor --- Q-factor --- BAW resonator --- parametric down-conversion --- photon-pair generation --- extended phase matching --- microring resonator --- varFDTD --- lithium tantalate thin film --- electro-optical devices --- lattice location --- radiation damage --- ion beam analysis --- hyperfine interactions --- charge localization --- lattice deformation --- optical response --- density-functional theory --- Bethe-Salpeter equation --- nanoparticles --- nanopowders --- X-ray diffraction --- Raman spectroscopy --- temperature dependence of electroconductivity --- bipolarons --- defect structure and generation --- Li diffusion --- bulk crystals --- thin films --- nanocrystals
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Das Wort "Gen" wurde 1909 geprägt. Im Rahmen des hierauf aufbauenden Forschungszweigs der Genetik wurden in den letzten 100 Jahren zahlreiche Kenntnisse über Struktur und Funktion von Desoxyribonukleinsäure (DNA) gewonnen. Insbesondere rückte durch die Entschlüsselung des menschlichen Genoms innerhalb des Humangenomprojektes und durch hiermit in Zusammenhang stehende Begleit- und Folgeprojekte in den vergangenen Jahren verstärkt die Bedeutung genetischer Faktoren für individuelle Charakteristika des Menschen und bei der Entstehung von Krankheiten ins Bewusstsein. Über diese medizinisch-naturwissenschaftlichen Bereiche hinausgehend besitzt heute die in einem recht allgemeinen Sinne verstandene "genetische Information" zudem vielfältige Auswirkungen auf unser Selbstverständnis und Zusammenleben. Im Rahmen des vorliegenden Sammelbandes wird der Frage nach der Bedeutung genetischer Information sowohl in biologisch-medizinischer Hinsicht als auch für die betreffenden Personen und ihre komplexen Lebenszusammenhänge nachgegangen. Namhafte Vertreterinnen und Vertreter der Medizin, Biologie, Ethik, Philosophie, Rechtswissenschaften und anderer Fachgebiete thematisieren hierbei grundlegende Fragen des Status genetischer Information und der Bedeutung genetischer Faktoren im Vergleich zu nicht-genetischen Faktoren sowie Überlegungen über die individuellen und gesellschaftlichen Implikationen des Umgangs mit genetischer Information. What is meant by genetic information? How can knowledge about the genetic information of a person be responsibly handled?An interdisciplinary symposium at Tübingen University tackled this whole complex of issues. There are contributions on the various aspects from specialists in biology, medicine, ethics and law.
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The present volume “New Trends in Lithium Niobate: From Bulk to Nanocrystals” contains the materials of a Special Issue of the MDPI journal Crystals dedicated to the memory of Prof. Dr. Ortwin F. Schirmer and provides a new synopsis of his research focusing on LiNbO3. It also includes recent developments, exemplifying the continued interest in this outstanding ferroelectric, non-linear optical and holographic crystal as a workhorse for testing and realizing new ideas and applications.This book starts with reviews on intrinsic and extrinsic crystal defects in LiNbO3 of single-crystal, thin-film or nano-powder forms, studied by various optical, magnetic resonance and nuclear methods, clarifying in particular the reasons for the suppression of anion vacancy formation upon thermal reduction, mechano-chemical processing or irradiations of various types. The reviews are followed by research papers on the experimental and theoretical investigation of small polarons, together with recent results on the properties of Li(Nb,Ta)O3 mixed crystals. Among the various contributions dealing with nonlinear optical applications, papers on device development, entangled photon pair generation and thin films on the Lithium Niobate On Insulator (LNOI) platform can also be found.
Research & information: general --- lithium niobate --- small polaron hopping --- transient absorption --- mode-locked laser --- nonlinear mirror mode locking --- lithium tantalate --- crystal structure --- chemical composition --- ferroelectrics --- second harmonic generation --- lead-free piezoelectrics --- intrinsic defects --- extrinsic defects --- elemental doping --- ferromagnetism --- diluted-magnetic oxides --- LiNbO3 --- LiTaO3 --- oxide crystals --- lanthanides --- luminescence --- LNOI --- ferroelectric domains --- domain-wall conduction --- AFM --- thin film lithium niobate --- TFLN --- x-cut LN --- domain walls --- piezoresponse force microscopy --- second-harmonic generation --- Raman scattering --- electro-optics --- whispering gallery resonators --- polarons --- photorefractivity --- Marcus-Holstein’s theory --- Monte Carlo simulations --- strontium titanate --- self-trapped electrons --- oxygen vacancies --- defects --- impurity --- intrinsic defect --- paramagnetic ion --- electron paramagnetic resonance --- electron nuclear double resonance --- lithium vacancy --- lithium --- niobate --- epitaxy --- thin film --- liquid phase epitaxy --- molecular beam epitaxy --- sputtering --- pulsed laser deposition --- chemical vapor deposition --- lithium niobate-tantalate --- piezoelectric --- acoustic --- high-temperature --- sensor --- Q-factor --- BAW resonator --- parametric down-conversion --- photon-pair generation --- extended phase matching --- microring resonator --- varFDTD --- lithium tantalate thin film --- electro-optical devices --- lattice location --- radiation damage --- ion beam analysis --- hyperfine interactions --- charge localization --- lattice deformation --- optical response --- density-functional theory --- Bethe-Salpeter equation --- nanoparticles --- nanopowders --- X-ray diffraction --- Raman spectroscopy --- temperature dependence of electroconductivity --- bipolarons --- defect structure and generation --- Li diffusion --- bulk crystals --- thin films --- nanocrystals
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Amulets. --- Cowries. --- Excavations (Archaeology) --- Excavations (Archaeology).
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Artificial intelligence exceeds the capabilities of humans in many ways. Now, if AI surpasses the achievements of human intelligence, where and why will humans remain irreplaceable in how we will live, shape our society, and work in the future? Speakers from basic and applied research, business, and society will contribute to the answers from their respective perspectives. Die Intelligenz hat den Menschen zum Erfolgsmodell unter allen Lebewesen gemacht. Derzeit scheint jedoch die Künstliche Intelligenz in vielerlei Hinsicht die menschliche Intelligenz zu übertreffen. Die Leistungen des intelligenten Chatbots ChatGPT haben jüngst viele von uns überrascht und beeindruckt. Aber wir müssen die Künstliche Intelligenz oft nicht einmal fragen. Viele Sensoren erfassen unser Verhalten und unsere Umwelt, interpretieren die Daten, steuern Geräte und beeinflussen letztlich unsere Entscheidungen. Den Erfolg der KI sehen wir in der Industrie, im Haushalt, in der Medizin, in Sprachkursen und überall in unserer alltäglichen Kommunikation. Angesichts dieser historisch beispiellosen Entwicklung stellen sich nun neue Fragen für die Menschheit: Wo und warum bleibt der Mensch unersetzlich? In welchen Entscheidungen sollen wir uns auf KI verlassen? Wie werden wir in Zukunft leben und arbeiten? Für die Antworten brauchen wir einen interdisziplinären Austausch. Die Autor:innen des Bandes kommen aus Informatik, Neurowissenschaft, Ingenieurwissenschaften, Sprachwissenschaft, Psychologie, Recht, Politik, Ethik und Geschichte. Ihr Ziel ist gemeinsam: ein differenziertes und realistisches Bild der Sonnen- und Schattenseiten der prägendsten Technologie des 21. Jahrhunderts zu geben.
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