A Concept For Measuring And Evaluating Optical Anisotropy Effects In Tempered Architectural Glass
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A Concept For Measuring And Evaluating Optical Anisotropy Effects In Tempered Architectural Glass
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Author : Steffen Dix
language : en
Publisher: Springer Nature
Release Date : 2023-09-25
A Concept For Measuring And Evaluating Optical Anisotropy Effects In Tempered Architectural Glass written by Steffen Dix and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-09-25 with Technology & Engineering categories.
Optical anisotropy effects can occur in building envelopes made of tempered glass. The visual effect has been neglected in the evaluation of the building product and increasingly leads to disputes between the parties involved. This thesis extends the state of knowledge on the cause and perception of optical anisotropic effects and presents a concept for measuring and evaluating them in flat monolithic tempered architectural glass. Initially, an overview and description of current photoelastic measurement methods are given, and the accuracy of the used measurement setups is verified for the first time. The experimental basis for the concept is formed by extensive full-field retardation measurements in the laboratory and field studies of the maximum visibility of the anisotropy effects in an outdoor test rig with accompanying polarization measurements of the sky. Various glass types, geometries, and tempering levels are selected based on typically used products, and their influence on the resulting retardation image is investigated. Determining a correlation of the retardation images with the reflection images of selected test specimens in the outdoor test rig complements the experiments. Based on this, digital evaluation methods are presented, further developed, and applied to the measured retardation images. From the critical analysis of these results, limit values for different anisotropy quality classes are derived, and the concept is complemented. With the implementation of the evaluation methods and the limit values in commercial anisotropy scanners, the quality of each glass pane can be determined directly after tempering in the future. By choosing the highest quality class A, it will be possible in the future to significantly reduce anisotropy effects in constructions made of tempered glass panes.
A Concept For Measuring And Evaluating Optical Anisotropy Effects In Tempered Architectural Glass
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Author : Steffen Dix
language : en
Publisher: Springer Vieweg
Release Date : 2023-11-16
A Concept For Measuring And Evaluating Optical Anisotropy Effects In Tempered Architectural Glass written by Steffen Dix and has been published by Springer Vieweg this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-16 with Technology & Engineering categories.
Optical anisotropy effects can occur in building envelopes made of tempered glass. The visual effect has been neglected in the evaluation of the building product and increasingly leads to disputes between the parties involved. This thesis extends the state of knowledge on the cause and perception of optical anisotropic effects and presents a concept for measuring and evaluating them in flat monolithic tempered architectural glass. Initially, an overview and description of current photoelastic measurement methods are given, and the accuracy of the used measurement setups is verified for the first time. The experimental basis for the concept is formed by extensive full-field retardation measurements in the laboratory and field studies of the maximum visibility of the anisotropy effects in an outdoor test rig with accompanying polarization measurements of the sky. Various glass types, geometries, and tempering levels are selected based on typically used products, and their influence on the resulting retardation image is investigated. Determining a correlation of the retardation images with the reflection images of selected test specimens in the outdoor test rig complements the experiments. Based on this, digital evaluation methods are presented, further developed, and applied to the measured retardation images. From the critical analysis of these results, limit values for different anisotropy quality classes are derived, and the concept is complemented. With the implementation of the evaluation methods and the limit values in commercial anisotropy scanners, the quality of each glass pane can be determined directly after tempering in the future. By choosing the highest quality class A, it will be possible in the future to significantly reduce anisotropy effects in constructions made of tempered glass panes.
Structures And Architecture A Viable Urban Perspective
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Author : Marie Frier Hvejsel
language : en
Publisher: CRC Press
Release Date : 2022-07-08
Structures And Architecture A Viable Urban Perspective written by Marie Frier Hvejsel and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-08 with Technology & Engineering categories.
Structures and Architecture. A Viable Urban Perspective? contains extended abstracts of the research papers and prototype submissions presented at the Fifth International Conference on Structures and Architecture (ICSA2022, Aalborg, Denmark, 6-8 July 2022). The book (578 pages) also includes a USB with the full texts of the papers (1448 pages). The contributions on creative and scientific aspects in the conception and construction of structures as architecture, and on the role of advanced digital-, industrial- and craft -based technologies in this matter represent a critical blend of scientific, technical, and practical novelties in both fields. Hence, as part of the proceedings series Structures and Architecture, the volume adds to a continuous exploration and development of the synergetic potentials of the fields of Structures and Architecture. With each volume further challenging the conditions, problems, and potentials related to the art, practice, and theory of teaching, researching, designing, and building structures as vehicles towards a viable architecture of the urban environment. The volumes of the series appear once every three years, in tandem with the conferences organized by the International Association of Structures and Architecture and are intended for a global readership of researchers, practitioners, and students, including architects, structural and construction engineers, builders and building consultants, constructors, material suppliers, planners, urban designers, anthropologists, economists, sociologists, artists, product manufacturers, and other professionals involved in the design and realization of architectural, structural, and infrastructural projects.
Challenging Glass
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Author : Freek Bos
language : en
Publisher: IOS Press
Release Date : 2008
Challenging Glass written by Freek Bos and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Architecture categories.
Contains topics that range from glass joints, fixings and adhesives to architectural designs to the strength, stability and safety of glass. This book also covers issues such as laminates and composite designs, glass lighting, the curving and bending of glass and the many facades of glass.
Ceramic Abstracts
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Author :
language : en
Publisher:
Release Date : 1983
Ceramic Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Ceramics categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1992
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aeronautics categories.
Portuguese Modernisms
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Author : Steffen Dix
language : en
Publisher: Routledge
Release Date : 2020-06-30
Portuguese Modernisms written by Steffen Dix and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-06-30 with categories.
This book presents a number of essays written by specialists in various fields that include literary criticism, linguistics, sociology, history and art criticism. It offers an excellent overview of Portuguese modernism in a current, challenging and encompassing manner.
Sol Gel Technologies For Glass Producers And Users
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Author : Michel A Aegerter
language : en
Publisher: Springer Science & Business Media
Release Date : 2004-10-29
Sol Gel Technologies For Glass Producers And Users written by Michel A Aegerter and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-10-29 with Technology & Engineering categories.
Sol-Gel Techniques for Glass Producers and Users provides technological information, descriptions and characterizations of prototypes, or products already on the market, and illustrates advantages and disadvantages of the sol-gel process in comparison to other methods. The first chapter entitled "Wet Chemical Technology" gives a summary of the basic principles of the sol-gel chemistry. The most promising applications are related to coatings. Chapter 2 describes the various "Wet Chemical Coating Technologies" from glass cleaning to many deposition and post-coating treatment techniques. These include patterning of coatings through direct or indirect techniques which have became very important and for which the sol-gel processing is particularly well adapted. Chapter 3 entitled "Bulk Glass Technologies" reports on the preparation of special glasses for different applications. Chapter 4 entitled "Coatings and Materials Properties" describes the properties of the different coatings and the sol-gel materials, fibers and powders. The chapter also includes a section dedicated to the characterization techniques especially applied to sol-gel coatings and products.
Government Reports Announcements Index
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Author :
language : en
Publisher:
Release Date : 1982-11
Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982-11 with Science categories.
Advanced Techniques For Surface Engineering
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Author : W. Gissler
language : en
Publisher: Springer Science & Business Media
Release Date : 1992-10-31
Advanced Techniques For Surface Engineering written by W. Gissler and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-10-31 with Technology & Engineering categories.
The hardest requirements on a material are in general imposed at the surface: it has to be wear resistant for tools and bearings; corrosion resistant for turbine blades; antireflecting for solar cells; and it must combine several of these properties in other applications. `Surface engineering' is the general term that incorporates all the techniques by which a surface modification can be accomplished. These techniques include both the more traditional methods, such as nitriding, boriding and carburizing, and the newer ones, such as ion implantation, laser beam melting and, in particular, coating. This book comprises and compares in a unique way all these techniques of surface engineering. It is a compilation of lectures which were held by renowned scientists and engineers in the frame of the well known `EuroCourses' of the Joint Research Centre of the Commission of the European Communities. The book is principally addressed to material and surface scientists, physicists and chemists, engineers and technicians of industries and institutes where surface engineering problems arise.