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Author: Julia Maria Sedlmair Publisher: Universitätsverlag Göttingen ISBN: 3863950364 Category : Languages : en Pages : 146
Book Description
Soft x-ray spectromicroscopy was used to investigate environmental and biological specimens paying particular attention to their carbon content, of organic or anthropogenic origin. To be more specific, energies in the spectral region of the so-called water window, between the K absorption edges of carbon (284 eV) and oxygen (523 eV), were applied. In this region the absorbance of substances of high carbon content such as proteins is ten times higher than the absorbance of water which provides natural contrast and in turn allows for a natural or close to natural environment for such samples. The experiments presented in this thesis were chosen in such a way that either new instruments or new analysis methods are studied on different non-model sample specimens. To understand the effect of nanoparticles on the environment, the interaction between carbon nanotubes and soil was monitored, both in dry and aqueous sample environment. Additionally, for the characterization of heterogeneous samples like soils, spectroscopic experiments with a laser driven plasma source were performed. It demonstrated the feasibility of such a complementary technique, if not sometimes alternative to NEXAFS studies using synchrotron radiation. In the third project the possibility to image vascular smooth muscle cells without the necessity of additional embedding or staining was inquired, but by applying a simple, non-cryo fixation sample preparation.
Author: Julia Maria Sedlmair Publisher: Universitätsverlag Göttingen ISBN: 3863950364 Category : Languages : en Pages : 146
Book Description
Soft x-ray spectromicroscopy was used to investigate environmental and biological specimens paying particular attention to their carbon content, of organic or anthropogenic origin. To be more specific, energies in the spectral region of the so-called water window, between the K absorption edges of carbon (284 eV) and oxygen (523 eV), were applied. In this region the absorbance of substances of high carbon content such as proteins is ten times higher than the absorbance of water which provides natural contrast and in turn allows for a natural or close to natural environment for such samples. The experiments presented in this thesis were chosen in such a way that either new instruments or new analysis methods are studied on different non-model sample specimens. To understand the effect of nanoparticles on the environment, the interaction between carbon nanotubes and soil was monitored, both in dry and aqueous sample environment. Additionally, for the characterization of heterogeneous samples like soils, spectroscopic experiments with a laser driven plasma source were performed. It demonstrated the feasibility of such a complementary technique, if not sometimes alternative to NEXAFS studies using synchrotron radiation. In the third project the possibility to image vascular smooth muscle cells without the necessity of additional embedding or staining was inquired, but by applying a simple, non-cryo fixation sample preparation.
Author: Tim Salditt Publisher: Springer Nature ISBN: 3030344134 Category : Science Languages : en Pages : 634
Book Description
This open access book, edited and authored by a team of world-leading researchers, provides a broad overview of advanced photonic methods for nanoscale visualization, as well as describing a range of fascinating in-depth studies. Introductory chapters cover the most relevant physics and basic methods that young researchers need to master in order to work effectively in the field of nanoscale photonic imaging, from physical first principles, to instrumentation, to mathematical foundations of imaging and data analysis. Subsequent chapters demonstrate how these cutting edge methods are applied to a variety of systems, including complex fluids and biomolecular systems, for visualizing their structure and dynamics, in space and on timescales extending over many orders of magnitude down to the femtosecond range. Progress in nanoscale photonic imaging in Göttingen has been the sum total of more than a decade of work by a wide range of scientists and mathematicians across disciplines, working together in a vibrant collaboration of a kind rarely matched. This volume presents the highlights of their research achievements and serves as a record of the unique and remarkable constellation of contributors, as well as looking ahead at the future prospects in this field. It will serve not only as a useful reference for experienced researchers but also as a valuable point of entry for newcomers.
Author: David Attwood Publisher: Cambridge University Press ISBN: 1316810666 Category : Technology & Engineering Languages : en Pages :
Book Description
With this fully updated second edition, readers will gain a detailed understanding of the physics and applications of modern X-ray and EUV radiation sources. Taking into account the most recent improvements in capabilities, coverage is expanded to include new chapters on free electron lasers (FELs), laser high harmonic generation (HHG), X-ray and EUV optics, and nanoscale imaging; a completely revised chapter on spatial and temporal coherence; and extensive discussion of the generation and applications of femtosecond and attosecond techniques. Readers will be guided step by step through the mathematics of each topic, with over 300 figures, 50 reference tables and 600 equations enabling easy understanding of key concepts. Homework problems, a solutions manual for instructors, and links to YouTube lectures accompany the book online. This is the 'go-to' guide for graduate students, researchers and industry practitioners interested in X-ray and EUV interaction with matter.
Author: United States. Congress. House. Committee on Science. Subcommittee on Energy and Environment Publisher: ISBN: Category : Political Science Languages : en Pages : 1464
Author: Publisher: ISBN: Category : Government publications Languages : en Pages : 72
Book Description
"This brochure overviews the scientific infrastructure that is constructed, maintained, and operated at Department of Energy laboratories for the pursuit of energy-related research." -- cf p. 4
Author: Freddy Adams Publisher: Elsevier ISBN: 0444634509 Category : Science Languages : en Pages : 493
Book Description
Chemical Imaging Analysis covers the advancements made over the last 50 years in chemical imaging analysis, including different analytical techniques and the ways they were developed and refined to link the composition and structure of manmade and natural materials at the nano/micro scale to the functional behavior at the macroscopic scale. In a development process that started in the early 1960s, a variety of specialized analytical techniques was developed – or adapted from existing techniques – and these techniques have matured into versatile and powerful tools for visualizing structural and compositional heterogeneity. This text explores that journey, providing a general overview of imaging techniques in diverse fields, including mass spectrometry, optical spectrometry including X-rays, electron microscopy, and beam techniques. - Provides comprehensive coverage of analytical techniques used in chemical imaging analysis - Explores a variety of specialized techniques - Provides a general overview of imaging techniques in diverse fields
Author: Chris Jacobsen Publisher: Cambridge University Press ISBN: 110878173X Category : Technology & Engineering Languages : en Pages : 595
Book Description
Written by a pioneer in the field, this text provides a complete introduction to X-ray microscopy, providing all of the technical background required to use, understand and even develop X-ray microscopes. Starting from the basics of X-ray physics and focusing optics, it goes on to cover imaging theory, tomography, chemical and elemental analysis, lensless imaging, computational methods, instrumentation, radiation damage, and cryomicroscopy, and includes a survey of recent scientific applications. Designed as a 'one-stop' text, it provides a unified notation, and shows how computational methods in different areas are linked with one another. Including numerous derivations, and illustrated with dozens of examples throughout, this is an essential text for academics and practitioners across engineering, the physical sciences and the life sciences who use X-ray microscopy to analyze their specimens, as well as those taking courses in X-ray microscopy.
Author: Baoshan Xing Publisher: John Wiley & Sons ISBN: 1118002113 Category : Science Languages : en Pages : 922
Book Description
In contrast to the classical books which largely focus on separate, individual physicochemical and biological aspects, this book aims to integrate the frontiers of knowledge on the fundamentals and the impact of physicochemical and biological interactions and processes of AOCs in soil, sediment, water and air. The specific objectives of this book are to address: (1) fundamental biophysico-chemical processes of AOCs in the environment, (2) occurrence and distribution of AOCs in air, water, and soil, and their global cycling, (3) the state-of-the-art analytical techniques of AOCs, and (4) restoration of natural environments contaminated by AOCs. The book also identifies the gaps in knowledge on the subject matter and as such provides future directions to stimulate scientific research to advance the chemical science on biophysico-chemical interfacial reactions in natural habitats. By virtue of complex nature of the interactions of AOCs with different environmental components and matrixes, no single available technique and instrument is satisfactory yet for determining their fate, transport, availability, and risk in the environment. In order to fully understand the biophysico-chemical interactions and processes of AOCs in the environment, it is critical to know chemical, physical and biological properties of AOCs and their analytical techniques. The book is unique because of its multidisciplinary approach as it provides a comprehensive and integrated coverage of biophysico-chemical reactions and processes of AOCs in various environments, associated analytical techniques, and restoration of natural environments contaminated by AOCs.
Author: Paul A. Fenter Publisher: Walter de Gruyter GmbH & Co KG ISBN: 1501508881 Category : Science Languages : en Pages : 604
Book Description
Volume 49 of Reviews in Mineralogy and Geochemistry reviews the state of the art of synchrotron radiation applications in low temperature geochemistry and environmental science, and offer speculations on future developments. The reader of this volume will acquire an appreciation of the theory and applications of synchrotron radiation in low temperature geochemistry and environmental science, as well as the significant advances that have been made in this area in the past two decades. It gives a fairly comprehensive overview of synchrotron radiation applications in low temperature geochemistry and environmental science, describes the ways that synchrotron radiation is generated, including a history of synchrotrons and a discussion of aspects of synchrotron radiation that are important to the experimentalist, describes specific synchrotron methods that are most useful for single-crystal surface and mineral-fluid interface studies as well as methods that can be used more generally for investigating complex polyphase fine-grained or amorphous materials, including soils, rocks, and organic matter.
Author: Charles N. Alpers Publisher: Walter de Gruyter GmbH & Co KG ISBN: 1501508660 Category : Science Languages : en Pages : 624
Book Description
Volume 40 of Reviews in Mineralogy and Geochemistry compiles and synthesizes current information on sulfate minerals from a variety of perspectives, including crystallography, geochemical properties, geological environments of formation, thermodynamic stability relations, kinetics of formation and dissolution, and environmental aspects. The first two chapters cover crystallography (Chapter 1) and spectroscopy (Chapter 2). Environments with alkali and alkaline earth sulfates are described in the next three chapters, on evaporites (Chapter 3), barite-celestine deposits (Chapter 4), and the kinetics of precipitation and dissolution of gypsum, barite, and celestine (Chapter 5). Acidic environments are the theme for the next four chapters, which cover soluble metal salts from sulfide oxidation (Chapter 6), iron and aluminum hydroxysulfates (Chapter 7), jarosites in hydrometallugy (Chapter 8), and alunite-jarosite crystallography, thermodynamics, and geochronology (Chapter 9). The next two chapters discuss thermodynamic modeling of sulfate systems from the perspectives of predicting sulfate-mineral solubilities in waters covering a wide range in composition and concentration (Chapter 10) and predicting interactions between sulfate solid solutions and aqueous solutions (Chapter 11). The concluding chapter on stable-isotope systematics (Chapter 12) discusses the utility of sulfate minerals in understanding the geological and geochemical processes in both high- and low-temperature environments, and in unraveling the past evolution of natural systems through paleoclimate studies. The review chapters in this volume were the basis for a short course on sulfate minerals sponsored by the Mineralogical Society of America (MSA) November 11-12, 2000 in Tahoe City, California, prior to the Annual Meeting of MSA, the Geological Society of America, and other associated societies in nearby Reno, Nevada. The conveners of the course (and editors of this volume of Reviews in Mineralogy and Geochemistry), Alpers, John Jambor, and Kirk Nordstrom, also organized related topical sessions at the GSA meeting on sulfate minerals in both hydrothermal and low-temperature environments.
Author: Julia Maria Sedlmair
Author: Julia Maria Sedlmair
Author: Tim Salditt
Author: David Attwood
Author: United States. Congress. House. Committee on Science. Subcommittee on Energy and Environment
Author: 
Author: Freddy Adams
Author: Chris Jacobsen
Author: Baoshan Xing
Author: Paul A. Fenter
Author: Charles N. Alpers