Author: Balasubramanian Muralikrishnan
Publisher:
ISBN:
Category : Surface roughness
Languages : en
Pages : 216
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Book Description
Surface finish plays an important role in several engineering component's function. In fact, it is the dependence on function that provides engineers the incentive to measure surface finish. Surface finish measurements are also useful in providing an index of process stability. While it has been realized that surface finish can be used for functional correlation and process diagnostics, it is rarely done so in practice. Surface texture measurements are currently only used as a go-no go gage for tolerance compliance. Therefore, there is a need to assess current industrial practices and identify directions that will advance surface metrology to diagnostics and correlation applications. In order to effectively do so, several industrial applications are compiled where surface finish is important from a manufacturing or functional perspective. These applications are developed into case studies with each case study addressing a specific issue on functional correlation or process diagnostics. More broadly, the case studies address two general themes: (1) the need for parameterization based on functional wavelength bandwidths and features; (2) the need for cause-effect modeling in surface metrology. In most cases, the case studies require the development of novel analytical techniques or the customization of existing tools. In order to allow practicing engineers to experiment, there is a need for packaging the techniques developed into an advanced surface profile analysis system. The case studies developed are carefully assessed for tools requirements and analysis needs. A requirements specification is drawn and the advanced analysis system is developed. The design of the system, its features and vision of usage are presented.
Author: Vijoy Gopalan
Publisher:
ISBN:
Category :
Languages : en
Pages : 206
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Book Description
ABSTRACT: Current surface analysis systems are standard, inflexible, process independent, and are designed for specification verification. They do not help the user to develop an understanding for the surface generation process. The objective of this project was to develop the next generation analysis system that will be flexible, process specific and provide advanced analysis tools. This thesis focuses on the development of a set of analysis tools that can operate over the Internet with access to a database. The software has been developed using the Java programming language. A database in Mini Structured Query language (MSQL) has been integrated with the analysis system. The software allows the user to load data from the database and analyze it using the tools provided. The software provides a comprehensive set of filters and user defined filtering schemes for surface profile diagnostics. It also provides advanced analysis tools such as power spectrum, correlation functions and wavelets to process the surfaces. Analysis of turned surfaces, by generating a theoretical turned surface has been developed. The software can process data files from the Mahr Perthometer, Taylor-Hobson and Federal instruments. It can also process data in the Standard Data Format (SDF). All the tools developed were validated for their ease of use and proper function. The results were compared to instruments like the Mahr Perthometer and the Taylor-Hobson and show good correlation.
Author: Liam Blunt
Publisher: Elsevier
ISBN: 0080526527
Category : Science
Languages : en
Pages : 365
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Book Description
This publication deals with the latest developments in the field of 3D surface metrology and will become a seminal text in this important area. It has been prepared with the support of the European Community’s Directorate General XII and represents the culmination of research conducted by 11 international partners as part of an EU-funded project. The aim of the project is to inform standards bodies of the possibilities that exist for a new international standard covering the field of 3D surface characterisation.The book covers a description of the proposed 3D surface parameters and advanced filtering techniques using wavelet and robust Gaussian methodologies. The next generation areal surface characterisation theories are discussed and their practical implementation is illustrated. It describes techniques for calibration of 3D instrumentation, including stylus instruments as well as scanning probe instrumentation. Practical verification of the 3D parameters and the filtering is illustrated through a series of case studies which cover bio-implant surfaces, automotive cylinder liner and steel sheet. Finally, future developments of the subject are alluded to and implications for future standardisation and development are discussed.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 854
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Book Description
Author: Stergios Stergiopoulos
Publisher: CRC Press
ISBN: 1420062417
Category : Technology & Engineering
Languages : en
Pages : 750
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Book Description
Discover the Applicability, Benefits, and Potential of New Technologies As advances in algorithms and computer technology have bolstered the digital signal processing capabilities of real-time sonar, radar, and non-invasive medical diagnostics systems, cutting-edge military and defense research has established conceptual similarities in these areas. Now civilian enterprises can use government innovations to facilitate optimal functionality of complex real-time systems. Advanced Signal Processing details a cost-efficient generic processing structure that exploits these commonalities to benefit commercial applications. Learn from a Renowned Defense Scientist, Researcher, and Innovator The author preserves the mathematical focus and key information from the first edition that provided invaluable coverage of topics including adaptive systems, advanced beamformers, and volume visualization methods in medicine. Integrating the best features of non-linear and conventional algorithms and explaining their application in PC-based architectures, this text contains new data on: Advances in biometrics, image segmentation, registration, and fusion techniques for 3D/4D ultrasound, CT, and MRI Fully digital 3D/ (4D: 3D+time) ultrasound system technology, computing architecture requirements, and relevant implementation issues State-of-the-art non-invasive medical procedures, non-destructive 3D tomography imaging and biometrics, and monitoring of vital signs Cardiac motion correction in multi-slice X-ray CT imaging Space-time adaptive processing and detection of targets interference-intense backgrounds comprised of clutter and jamming With its detailed explanation of adaptive, synthetic-aperture, and fusion-processing schemes with near-instantaneous convergence in 2-D and 3-D sensors (including planar, circular, cylindrical, and spherical arrays), the quality and illustration of this text’s concepts and techniques will make it a favored reference.
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 814
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 440
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Book Description
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 710
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Book Description
Author: Said Dermime
Publisher: Frontiers Media SA
ISBN: 2889718638
Category : Medical
Languages : en
Pages : 284
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Book Description
Author: Nilanjan Dey
Publisher: Academic Press
ISBN: 012816087X
Category : Science
Languages : en
Pages : 348
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Book Description
Machine Learning in Bio-Signal Analysis and Diagnostic Imaging presents original research on the advanced analysis and classification techniques of biomedical signals and images that cover both supervised and unsupervised machine learning models, standards, algorithms, and their applications, along with the difficulties and challenges faced by healthcare professionals in analyzing biomedical signals and diagnostic images. These intelligent recommender systems are designed based on machine learning, soft computing, computer vision, artificial intelligence and data mining techniques. Classification and clustering techniques, such as PCA, SVM, techniques, Naive Bayes, Neural Network, Decision trees, and Association Rule Mining are among the approaches presented. The design of high accuracy decision support systems assists and eases the job of healthcare practitioners and suits a variety of applications. Integrating Machine Learning (ML) technology with human visual psychometrics helps to meet the demands of radiologists in improving the efficiency and quality of diagnosis in dealing with unique and complex diseases in real time by reducing human errors and allowing fast and rigorous analysis. The book's target audience includes professors and students in biomedical engineering and medical schools, researchers and engineers. Examines a variety of machine learning techniques applied to bio-signal analysis and diagnostic imaging Discusses various methods of using intelligent systems based on machine learning, soft computing, computer vision, artificial intelligence and data mining Covers the most recent research on machine learning in imaging analysis and includes applications to a number of domains
