This thesis describes advances in the understanding of HgCdTe detectors. While long wave (15 m) infrared detectors HgCdTe detectors have been developed for military use under high background irradiance, these arrays had not previously been developed for astronomical use where the background irradiance is a billion times smaller. The main pitfall in developing such arrays for astronomy is the pixel dark current which plagues long wave HgCdTe. The author details work on the success of shorter wavelength development at Teledyne Imaging Sensors, carefully modeling the dark current-reverse bias voltage curves of their 10 m devices at a temperature of 30K, as well as the dark current-temperature curves at several reverse biases, including 250 mV. By projecting first to 13 and then 15 m HgCdTe growth, values of fundamental properties of the material that would minimize tunneling dark currents were determined through careful modeling of the dark current-reverse bias voltage curves, as well as the dark current-temperature curves. This analysis was borne out in the 13 m parts produced by Teledyne, and then further honed to produce the necessary parameters for the 15 m growth. The resulting 13 m arrays are being considered by a number of ground-based astronomy research groups.

Aimed at engineers and materials scientists in a wide range of sectors, this book is a unique source of surface preparation principles and techniques for plastics, thermosets, elastomers, ceramics and metals bonding. With emphasis on the practical, it draws together the technical principles of surface science and surface treatments technologies to enable practitioners to improve existing surface preparation processes to improve adhesion and, as a result, enhance product life.

This book describes and illustrates the surface preparations and operations that must be applied to a surface before acceptable adhesive bonding is achieved. It is meant to be an exhaustive overview, including more detailed explanation where necessary, in a continuous and logical progression.

The book provides a necessary grounding in the science and practice of adhesion, without which adequate surface preparation is impossible. Surface characterization techniques are included, as is an up-to-date assessment of existing surface treatment technologies such as Atmospheric Plasma, Degreasing, Grit blasting, laser ablation and more. Fundamental material considerations are prioritised over specific applications, making this book relevant to all industries using adhesives, such as medical, automotive, aerospace, packaging and electronics.

This second edition represents a full and detailed update, with all major developments in the field included and three chapters added to cover ceramic surface treatment, plasma treatment of non-metallic materials, and the effect of additives on surface properties of plastics.
A vital resource for improving existing surface treatment processes to increase product life by creating stronger, more durable adhesive bonds Relevant across a variety of industries, including medical, automotive and packaging Provides essential grounding in the science of surface adhesion, and details how this links with the practice of surface treatment

In this thesis, the author investigates hidden-order phase transition at" T"0 = 17.5 K in the heavy-fermion URu2Si2. The four-fold rotational symmetry breaking in the hidden order phase, which imposes a strong constraint on the theoretical model, is observed through the magnetic torque measurement. The translationally invariant phase with broken rotational symmetry is interpreted as meaning that the hidden-order phase is an electronic "nematic" phase. The observation of such nematicity in URu2Si2 indicates a ubiquitous nature among the strongly correlated electron systems.

The author also studies the superconducting state of URu2Si2 below" T"c = 1.4 K, which coexists with the hidden-order phase. A peculiar vortex penetration in the superconducting state is found, which may be related to the rotational symmetry breaking in the hidden-order phase. The author also identifies a vortex lattice melting transition. This transport study provides essential clues to the underlying issue of quasiparticle dynamics as to whether a quasiparticle Bloch state is realized in the periodic vortex lattice.

This book covers the recent research advances on the utilization of date palm fibers as a new source of cellulosic fibers that can be used in the reinforcement of polymer composites. It discusses the competitive mechanical, physical, and chemical properties which make date palm fibers stand out as an alternative to other fibers currently used in the natural fiber composites market. This volume will be useful to researchers working on natural fiber composites and fiber reinforced composites looking to develop green, biodegradable and sustainable components for application in automotive, marine, aerospace, construction, wind energy and consumer goods sectors.

The sea is steadily rising, presently at ~3.4 mm/y, already costing Billions in Venice, on the Thames River and in New York City, to counter sea-level-related surges. Experts anticipate an accelerated rise, and credible predictions for sea level rise by the year 2100 range from 12 inches to above 6 feet. Study of the Earth's geologic history, through ice-core samples, links sea level rise to temperature rise. Since the lifetime of carbon dioxide in the atmosphere is measured in centuries, and it has upset the balance of incoming and outgoing energy, the Earth's temperature will continue to rise, even if carbon burning ceases. Engineering the Earth's solar input appears increasingly attractive and practical as a means to lower Earth's temperature, and thus, to lower sea level. The cost of engineering the climate appears small, comparable, even, to the already-incurred costs of sea level rise represented by civil engineering projects in London, Venice and New York City. Feasible deployment of geoengineering, accompanied by some reduction in carbon burning, is predicted to lower the sea level by the order of one foot by 2100 AD, negating the expected rise, to provide an immense economic benefit. The accompanying lower global temperature would reduce the severity of extreme weather, and restore habitability to lethally hot parts of the world. This book is primarily conceived to aid and inform the educated citizen: aspects may also interest climate workers.

Nanotube Superfiber Materials refers to different forms of macroscale materials with unique properties constructed from carbon nanotubes. These materials include nanotube arrays, ribbons, scrolls, yarn, braid, and sheets. Nanotube materials are in the early stage of development and this is the first dedicated book on the subject. Transitioning from molecules to materials is a breakthrough that will positively impact almost all industries and areas of society.

Key properties of superfiber materials are high flexibility and fatigue resistance, high energy absorption, high strength, good electrical conductivity, high maximum current density, reduced skin and proximity effects, high thermal conductivity, lightweight, good field emission, piezoresistive, magnetoresistive, thermoelectric, and other properties. These properties will open up the door to dozens of applications including replacing copper wire for power conduction, EMI shielding, coax cable, carbon biofiber, bullet-proof vests, impact resistant glass, wearable antennas, biomedical microdevices, biosensors, self-sensing composites, supercapacitors, superinductors, hybrid superconductor, reinforced elastomers, nerve scaffolding, energy storage, and many others.

The scope of the book covers three main areas: Part I: Processing; Part II: Properties; and Part III: Applications. Processing involves nanotube synthesis and macro scale material formation methods. Properties covers the mechanical, electrical, chemical and other properties of nanotubes and macroscale materials. Different approaches to growing high quality long nanotubes and spinning the nanotubes into yarn are explained in detail. The best ideas are collected from all around the world including commercial approaches. Applications of nanotube superfiber cover a huge field and provides a broad survey of uses. The book gives a broad overview starting from bioelectronics to carbon industrial machines.
First book to explore the production and applications of macro-scale materials made from nano-scale particles.

Sets out the processes for producing macro-scale materials from carbon nanotubes, and describes the unique properties of these materials

Potential applications for CNT fiber/yarn include replacing copper wire for power conduction, EMI shielding, coax cable, carbon biofiber, bullet-proof vests, impact resistant glass, wearable antennas, biomedical microdevices, biosensors, self-sensing composites, supercapacitors, superinductors, hybrid superconductor, reinforced elastomers, nerve scaffolding, energy storage, and many others.

This handbook is a valuable resource for scientists, engineers, graduate students, managers, decision makers, and those who are interested in ionic liquids. Many industrial applications rely on the use of Ionic Liquid Mixtures, as in solar energy storage, waste recycling or batteries.Physicochemical Properties of Ionic Liquid Mixtures is a useful handbook that contains the following features: - the physicochemical properties and property models of mixtures containing ionic liquids - supplemented by a comprehensive database of properties listing ionic liquid systems collected from more than 800 dependable literature sources - over 60,000 data entries on 39 types of physicochemical properties for 1388 mixtures, including binary, ternary, quaternary and other mixtures.

This book presents articles from the World Conference on Acoustic Emission 2019 (WCAE-2019) held at Guangdong, China. The latest research and applications of acoustic emission (AE) are explored, with a particular emphasis on detecting and processing AE signals, the development of AE instrument and testing standards, AE of materials, engineering structures and systems, including the processing of collected data and analytical techniques. Numerous case studies are also included. It brings together leading academicians and professionals in the field to foster collaboration and to enhance research in this important area, with wide ranging applications.

This book provides a systematic and thorough introduction to the classical laminate theory based on the theory for plane elasticity elements and classical (shear-rigid) plate elements. It focus on unidirectional lamina which can be described based on orthotropic constitutive equations and their composition to layered laminates. In addition to the elastic behavior, failure is investigated based on the maximum stress, maximum strain, Tsai-Hill and the Tsai-Wu criteria.

This book presents the proceedings of the 8th International Ergonomics Conference (ERGONOMICS), held in Zagreb, Croatia on December 2-5, 2020. By highlighting the latest theories and models, as well as cutting-edge technologies and applications, and by combining findings from a range of disciplines including engineering, design, robotics, healthcare, management, computer science, human biology and behavioral science, it provides researchers and practitioners alike with a comprehensive, timely guide on human factors and ergonomics. It also offers an excellent source of innovative ideas to stimulate future discussions and developments aimed at applying knowledge and techniques to optimize system performance, while at the same time promoting the health, safety and wellbeing of individuals. The proceedings include papers from researchers and practitioners, scientists and physicians, institutional leaders, managers and policy makers that contribute to constructing the Human Factors and Ergonomics approach across a variety of methodologies, domains and productive sectors.

A Zahigkeitscharakterisierung mit Hilfe bruchmechanischer Konzepte.- A 1 Stand und Entwicklungstendenzen.- Neue Entwicklungen bei der bruchmechanischen Zahigkeitsbewertung von Kunststoffen und Verbunden.- JTJ-Konzept und dissipative Energien am Riss.- A 2 Experimentelle Methoden.- Bruchmechanische Messmethoden fur Polymere.- Einfluss von Prufkoerpergeometrie und Beanspruchungsbedingungen auf das Risswiderstandsverhalten von PVC und PP.- Prozedur zur Ermittlung des Risswiderstandsverhaltens mit dem instrumentierten Kerbschlagbiegeversuch.- Experimentelle Methoden zur Charakterisierung des Bruchverhaltens von HDPE-Rohren.- Die mechanische Charakterisierung von Polymeren und verstarkten Polymeren - Experimentelle Probleme und theoretische Hintergrunde.- A 3 Alternative Methoden.- Approximative Methoden zur Beschreibung des Risswiderstandsverhaltens im instrumentierten Kerbschlagbiegeversuch.- Anwendung der Normalisierungsmethode zur Ermittlung von Risswiderstandskurven an amorphen PVC-Werkstoffen.- Berechnung von J-R-Kurven aus Kraft-Durchbiegungs-Diagrammen auf Basis des Gelenkprutkoerpers.- J-TJ- und ?-T?-Stabilitatsdiagramme als Grundlage einer alternativen Methode zur Ermittlung von Instabilitatswerten aus Risswiderstandskurven.- B Morphologie-Eigenschafts-Korrelationen.- B 1 Homopolymerisate.- UEbermolekulare Struktur und mechanische Eigenschaften von isotaktischem Polypropylen.- Bruchverhalten und Morphologie von HDPE-Werkstoffen.- Zahigkeits- und Relaxationsverhalten von PMMA, PS und PC.- Crazing in amorphen Polymeren - Entstehung und Wachstum fibrillarer Crazes in der Nahe der Glasubergangstemperatur.- Einfluss der Temperatur und der Feuchtigkeit auf das Zahigkeitsverhalten von Polyamid.- B 2 Blends.- Zusammenhang zwischen Bruchverhalten und Morphologie von PE/PP-Blends.- Einfluss von Modifikatorkonzentration und Pruftemperatur auf das Zahigkeitsverhalten von modifizierten Polyamiden.- Morphologie und Zahigkeit von PP/EPR-Blends.- B 3 Copolymerisate.- Anwendung bruchmechanischer Werkstoffkenngroessen zur Optimierung des Zahigkeitsverhaltens von polymeren Mehrphasensystemen mit PP-Matrix.- Bruchmechanische Zahigkeitsbewertung des Rissinitiierungs-und Rissausbreitungsverhaltens von Ethylen-Propylen-Random-Copolymerisaten.- Risszahigkeitsverhalten von ABS-Werkstoffen.- ABS - Sproedbruch-Untersuchungen der Morphologie-Versagens-Beziehung.- C Hybride Methoden der Kunststoffprufung und Kunststoffdiagnostik.- Neue Moeglichkeiten der zerstoerungsfreien Charakterisierung von Polymeren.- Ermittlung des lokalen Deformationsverhaltens von Kunststoffen mittels Laserextensometrie.- D Technologische Prufverfahren.- Einsatzgrenzen von Kunststoffen und deren Verbunden unter Reibungs- und Verschleissbedingungen.- Modifizierung von Polymerwerkstoffen mit amorphem Kohlenstoff zur Optimierung des Reibungsverhaltens.- Mechanisches Schwingungsverhalten einer CFK-Verdichterschaufel.- E Biokompatible Werkstoffe und medizinische Implantate.- Polymere Werkstoffe in der orthopadischen Gelenkchirurgie.- Werkstoffparameter von funktionellen Prothesen im HNO-Bereich bei fortschreitender Degradation.- Mikrobielle Korrosion von pharyngo-trachealen Shuntventilen.- Werkstoff-und Deformationsverhalten von Stimmprothesen - Sensibilitat mechanischer Prufverfahren.- F Spezielle Werkstoffe.- Rissinitiierung, Verschleiss und molekulare Struktur von gefullten Vulkanisaten.- Charakterisierung des Deformationsverhaltens von modifiziertem Polymerbeton.- G Einsatz-und Anwendungsgrenzen.- Der Einfluss des biaxialen Spannungszustandes auf die Werkstoffkennwertfunktionen nichtlinear-viskoelastischer Werkstoffe.- Mediale Bestandigkeit von PP/GF-Verbunden.- Einfluss der medialen Auslagerung auf das Impactverhalten glasfaserverstarkter Kunststoffe.- Physikalische Alterung von Polypropylen.- Autorenindex.

This book presents developments of techniques for detection and analysis of two electrons resulting from the interaction of a single incident electron with a solid surface. Spin dependence in scattering of spin-polarized electrons from magnetic and non-magnetic surfaces is governed by exchange and spin-orbit effects. The effects of spin and angular electron momentum are shown through symmetry of experimental geometries: (i) normal and off normal electron incidence on a crystal surface, (ii) spin polarization directions within mirror planes of the surface, and (iii) rotation and interchange of detectors with respect to the surface normal. Symmetry considerations establish relationships between the spin asymmetry of two-electron distributions and the spin asymmetry of Spectral Density Function of the sample, hence providing information on the spin-dependent sample electronic structure. Detailed energy and angular distributions of electron pairs carry information on the electron-electron interaction and electron correlation inside the solid. The "exchange - correlation hole" associated with Coulomb and exchange electron correlation in solids can be visualized using spin-polarized two-electron spectroscopy. Also spin entanglement of electron pairs can be probed. A description of correlated electron pairs generation from surfaces using other types of incident particles, such as photons, ions, positrons is also presented.

This book provides an overview of multiscale approaches and homogenization procedures as well as damage evaluation and crack initiation, and addresses recent advances in the analysis and discretization of heterogeneous materials. It also highlights the state of the art in this research area with respect to different computational methods, software development and applications to engineering structures. The first part focuses on defects in composite materials including their numerical and experimental investigations; elastic as well as elastoplastic constitutive models are considered, where the modeling has been performed at macro- and micro levels. The second part is devoted to novel computational schemes applied on different scales and discusses the validation of numerical results. The third part discusses gradient enhanced modeling, in particular quasi-brittle and ductile damage, using the gradient enhanced approach. The final part addresses thermoplasticity, solid-liquid mixtures and ferroelectric models. The contents are based on the international workshop "Multiscale Modeling of Heterogeneous Structures" (MUMO 2016), held in Dubrovnik, Croatia in September 2016.

This book focuses on molecular space chemistry, which is recognized as an important concept for the design of novel functional materials and catalysts. A wide variety of topics and ideas included in this book are based on that concept. The book showcases recent representative examples of molecular space design to create functional materials and catalysts possessing unique properties. This unique volume will be of great interest to chemists in a wide variety of research fields, including organic, inorganic, biological, polymer, and supramolecular chemistry. Readers will obtain new ideas and directions to create novel functional molecules, and those ideas will lead to innovative views of science.

This thesis combines advanced femtosecond laser micro/nanofabrication technologies and frontier bionic design principles to prepare diverse biomimetic micro/nanostructures to realize their functions. By studying the formation mechanism of the micro/nanostructures, the author identifies various artificial structural colors, three-dimensional micro/nanocage arrays, and fish-scale inspired microcone arrays in different processing environments. Multiple functions such as enhanced antireflection, hydrophobicity, and underwater superoleophobicity are achieved by precisely adjusting laser-machining parameters. This novel design and method have extensive potential applications in the context of new colorizing technologies, microfluidics, microsensors, and biomedicine.

Situated at the forefront of interdisciplinary research on ferromagnetic microwires and their multifunctional composites, this book starts with a comprehensive treatment of the processing, structure, properties and applications of magnetic microwires. Special emphasis is placed on the giant magnetoimpedance (GMI) effect, which forms the basis for developing high-performance magnetic sensors. After defining the key criteria for selecting microwires for various types of GMI sensors, the book illustrates how ferromagnetic microwires are employed as functional fillers to create a new class of composite materials with multiple functionalities for sensing and microwave applications. Readers are introduced to state-of-the-art fabrication methods, microwave tunable properties, microwave absorption and shielding behaviours, as well as the metamaterial characteristics of these newly developed ferromagnetic microwire composites. Lastly, potential engineering applications are proposed so as to highlight the most promising perspectives, current challenges and possible solutions.

The articles in this book review hybrid experimental-computational methods applied to soft tissues which have been developed by worldwide specialists in the field. People developing computational models of soft tissues and organs will find solutions for calibrating the material parameters of their models; people performing tests on soft tissues will learn what to extract from the data and how to use these data for their models and people worried about the complexity of the biomechanical behavior of soft tissues will find relevant approaches to address this complexity.

This thesis focuses on porous monolithic materials that are not in the forms of particles, fibers, or films. In particular, the synthetic strategy of porous monolithic materials via the sol-gel method accompanied by phase separation, which is characterized as the non-templating method for tailoring well-defined macropores, is described from the basics to actual synthesis. Porous materials are attracting more and more attention in various fields such as electronics, energy storage, catalysis, sensing, adsorbents, biomedical science, and separation science. To date, many efforts have been made to synthesize porous materials in various chemical compositions-organics, inorganics including metals, glasses and ceramics, and organic-inorganic hybrids. Also demonstrated in this thesis are the potential applications of synthesized porous monolithic materials to separation media as well as to electrodes for electric double-layer capacitors (EDLCs) and Li-ion batteries (LIBs). This work is ideal for graduate students in materials science and is also useful to engineers or scientists seeking basic knowledge of porous monolithic materials.

This book introduces the reader to important aspects of the nano-hydrogels. It covers the development of hydrogels and their biology, chemistry and properties. Focus is also given to innovative characterization techniques and advances in structural design, with special emphasis on molecular structure, dynamic behavior and structural modifications of hydrogels. This book serves as a consolidated reference work for the diverse aspects of hydrogels, creating a valuable resource for students and researchers in academia and industry.

This book gathers the best peer-reviewed papers presented at the Italian Concrete Days national conference, held in Lecco, Italy, on June 14-15, 2018. The conference topics encompass the aspects of design, execution, rehabilitation and control of concrete structures, with particular reference to theory and modeling, applications and realizations, materials and investigations, technology and construction techniques. The contributions amply demonstrate that today's structural concrete applications concern not only new constructions, but more and more rehabilitation, conservation, strengthening and seismic upgrading of existing premises, and that requirements cover new aspects within the frame of sustainability, including environmental friendliness, durability, adaptability and reuse of works and / or materials. As such the book represents an invaluable, up-to-the-minute tool, providing an essential overview of structural concrete, as well as all new materials with cementitious matrices.

This book gives a comprehensive overview of electrochemical-based biosensors and their crucial components. Practical examples are given throughout the text to illustrate how the performance of electrochemical-based biosensors can be improved by nanoscale surface modification and how an optimal design can be achieved. All essential aspects of biosensors are considered, including electrode functionalization, efficiency of the mass transport of reactive species, and long term durability and functionality of the sensor. This book also: * Explains how the performance of an electrochemical-based biosensor can be improved by nanoscale surface modification * Gives readers the tools to evaluate and improve the performance of a biosensor with a multidisciplinary approach that considers electrical, electrostatic, electrochemical, chemical, and biochemical events * Links the performance of a sensor to the various governing physical and chemical principles so readers can fully understand how a biosensor with nanoscale modified electrode surface functions.

Magnetic impurities in a non-magnetic host metal have been actively explored in condensed matter physics in recent last decades. From both fundamental and applied viewpoints these systems are very interesting because they can exhibit strong electronic correlations that give rise to various fascinating phenomena beyond the single particle picture. Up to now our understanding of the underlying processes remains limited due to difficulties involved in measuring these systems on a microscopic scale. With their unique control, scanning tunneling microscopy (STM) and spectroscopy (STS) allow for the first time investigations of phenomena occurring on very small length and energy scales. Here, single magnetic iron and cobalt atoms embedded beneath a metal surface are investigated using these techniques. In particular, the transition from single impurity Kondo physics to two interacting impurities is studied in real space. This thesis contains a comprehensive description of the STM /STS technique, sub-surface impurities, as well as single- and two-impurity Kondo physics - and as such offers a valuable introduction to newcomers to the field.