Application of LADAR in the Analysis of Aggregate Characteristics

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Publisher : Transportation Research Board
ISBN 13 : 0309258456
Total Pages : 97 pages
Book Rating : 4.3/5 (92 download)

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Book Synopsis Application of LADAR in the Analysis of Aggregate Characteristics by : Linbing Wang

Download or read book Application of LADAR in the Analysis of Aggregate Characteristics written by Linbing Wang and published by Transportation Research Board. This book was released on 2012 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: "NCHRP Project 4-34, 'Application of LADAR in the Analysis of Aggregate Characteristics,' was conducted by Virginia Polytechnic Institute and State University, Blacksburg, Virginia, with participation by the University of Illinois at Urbana-Champaign. The objective of the project was to develop and evaluate a laser detection and ranging (LADAR) system capable of precise and accurate measurement of the aggregate characteristics of shape, volume, angularity, surface texture, specific surface area, and volumetric gradation. Ideally, the final system would be applicable to aggregate in three size categories--coarse (2 in. to #4), fine (#4 to #200), and microfine (P200)--and suitable for routine use in research, central, and field laboratories for Portland cement concrete and asphalt concrete mixture design and quality assurance. The project, which developed new equipment and computer algorithms, proved technically challenging. The project team developed a prototype Fourier transform interferometry (FTI) system with fully functional hardware and software. The system can characterize aggregate shape, angularity, texture, surface area, and volume of a wide range of aggregate sizes with high accuracy. Assembly and operation of the FTI system consisting of a chargecoupled device (CD) camera, a fringe source, a sample platform, and a software package are fully documented in the report. The accuracy and precision of the prototype FTI system are comparable to or better than those of other systems now available to automatically measure aggregate characteristics, but its current range of aggregate size--3/4 in. to #50--is narrower than desired. Extending this size range is possible in the future by using a CCD camera with a larger field of view and increasing the system resolution through appropriate selection of the equipment components."

Application of LADAR in the Analysis of Aggregate Characteristics

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Author :
Publisher : Transportation Research Board National Research
ISBN 13 : 9780309258456
Total Pages : 100 pages
Book Rating : 4.2/5 (584 download)

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Book Synopsis Application of LADAR in the Analysis of Aggregate Characteristics by : Linbing Wang

Download or read book Application of LADAR in the Analysis of Aggregate Characteristics written by Linbing Wang and published by Transportation Research Board National Research. This book was released on 2012 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: "NCHRP Project 4-34, 'Application of LADAR in the Analysis of Aggregate Characteristics,' was conducted by Virginia Polytechnic Institute and State University, Blacksburg, Virginia, with participation by the University of Illinois at Urbana-Champaign. The objective of the project was to develop and evaluate a laser detection and ranging (LADAR) system capable of precise and accurate measurement of the aggregate characteristics of shape, volume, angularity, surface texture, specific surface area, and volumetric gradation. Ideally, the final system would be applicable to aggregate in three size categories--coarse (2 in. to #4), fine (#4 to #200), and microfine (P200)--and suitable for routine use in research, central, and field laboratories for Portland cement concrete and asphalt concrete mixture design and quality assurance. The project, which developed new equipment and computer algorithms, proved technically challenging. The project team developed a prototype Fourier transform interferometry (FTI) system with fully functional hardware and software. The system can characterize aggregate shape, angularity, texture, surface area, and volume of a wide range of aggregate sizes with high accuracy. Assembly and operation of the FTI system consisting of a chargecoupled device (CD) camera, a fringe source, a sample platform, and a software package are fully documented in the report. The accuracy and precision of the prototype FTI system are comparable to or better than those of other systems now available to automatically measure aggregate characteristics, but its current range of aggregate size--3/4 in. to #50--is narrower than desired. Extending this size range is possible in the future by using a CCD camera with a larger field of view and increasing the system resolution through appropriate selection of the equipment components."

Test Methods for Characterizing Aggregate Shape, Texture, and Angularity

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Publisher : Transportation Research Board
ISBN 13 : 0309098823
Total Pages : 94 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Test Methods for Characterizing Aggregate Shape, Texture, and Angularity by : Eyad Masad

Download or read book Test Methods for Characterizing Aggregate Shape, Texture, and Angularity written by Eyad Masad and published by Transportation Research Board. This book was released on 2007 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 555: Test Methods for Characterizing Aggregate Shape, Texture, and Angularity examines a methodology for classifying aggregates based on the distribution of shape, texture, and angularity characteristics. The report also explores a test method that it is appropriate for use in central and field laboratories, which measures shape, texture, and angularity characteristics of aggregates used in hot-mix asphalt, hydraulic cement concrete, and unbound base and subbase layers of pavements. Appendixes for the report were published as NCHRP Web-Only Document 80"--Publisher's description.

Summary of Progress - National Cooperative Highway Research Program

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Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Summary of Progress - National Cooperative Highway Research Program by : National Cooperative Highway Research Program

Download or read book Summary of Progress - National Cooperative Highway Research Program written by National Cooperative Highway Research Program and published by . This book was released on 2009 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analysis of Aggregate Imaging System (AIMS) Measurements and Their Relationship to Asphalt Pavement Skid Resistance

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (69 download)

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Book Synopsis Analysis of Aggregate Imaging System (AIMS) Measurements and Their Relationship to Asphalt Pavement Skid Resistance by : Anthony David Luce

Download or read book Analysis of Aggregate Imaging System (AIMS) Measurements and Their Relationship to Asphalt Pavement Skid Resistance written by Anthony David Luce and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis consists of two parts. The first part includes analyses of the correlation between the results of two Aggregate Imaging System (AIMS) units. These analyses have led to refinements of the AIMS analysis methods of angularity and texture, which resulted in reduced variability in the results and better correlation between the two AIMS units. The refined analysis methods were used to establish a database of the shape characteristics of about 100 aggregate samples from the state of Texas and to propose a new method for the classification of aggregates based on their shape characteristics. This new method of classification is for use in the Texas Department of Transportation (TxDOT) wet weather accident reduction program (WWARP). The use of AIMS texture index and variability in texture within an aggregate source is proposed instead of the British Polish Value (BPV) for classifying aggregates used in pavement surfaces. The second part of the thesis investigates the relationship between shape characteristics and asphalt pavement skid resistance. Many states have implemented wet weather accident reduction programs aimed at maintaining acceptable levels of pavement skid resistance. Proper aggregate selection before construction aids in maintaining acceptable levels of skid resistance throughout the life of the pavement. Several predictive models of pavement skid resistance have been developed over the years. Some of these models account for the influence of aggregate characteristics on pavement skid resistance, primarily through incorporating the results of the BPV test in the model. However, the BPV test is known to have high variability and dependence on experimental factors that are not related to the actual aggregate resistance to polishing. AIMS offers a method to measure aggregate shape characteristics directly in a relatively short period of time. The new method for relating aggregate shape characteristics to pavement skid resistance was verified by relating skid resistance measurements from field test sections to measured aggregate properties from the laboratory. This methodology is expected to be the basis for further study to form a more comprehensive and verified model for the prediction of pavement skid resistance that incorporates measured aggregate properties from the AIMS system.

Remote Sensing

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Publisher : Oxford University Press
ISBN 13 : 0195178173
Total Pages : 701 pages
Book Rating : 4.1/5 (951 download)

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Book Synopsis Remote Sensing by : John R. Schott

Download or read book Remote Sensing written by John R. Schott and published by Oxford University Press. This book was released on 2007-05-25 with total page 701 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote Sensing deals with the fundamental ideas underlying the rapidly growing field of remote sensing. John Schott explores energy-matter interaction, radiation propagation, data dissemination, and described the tools and procedures required to extract information from remotely sensed data using the image chain approach. Organizations and individuals often focus on one aspect of the remote sensing process before considering it as a whole, thus investigating unjustified effort, time, and expense to get minimal improvement. Unlike other books on the subject, Remote Sensing treats the process as a continuous flow. Schott examines the limitations obstructing the flow of information to the user, employing numerous applications of remote sensing to earth observation disciplines. For this second edition, in addition to a thorough update, there are major changes and additions, such as a much more complete treatment of spectroscopic imaging, which has matured dramatically in the last ten years, and a more rigorous treatment of image processing with an emphasis on spectral image processing algorithms. Remote Sensing is an ideal first text in remote sensing for advanced undergraduate and graduate students in the physical or engineering sciences, and will also serve as a valuable reference for practitioners.

Light Scattering From Micrometric Mineral Dust and Aggregate Particles

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Publisher : Springer Nature
ISBN 13 : 3030567877
Total Pages : 148 pages
Book Rating : 4.0/5 (35 download)

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Book Synopsis Light Scattering From Micrometric Mineral Dust and Aggregate Particles by : Llorenç Cremonesi

Download or read book Light Scattering From Micrometric Mineral Dust and Aggregate Particles written by Llorenç Cremonesi and published by Springer Nature. This book was released on 2020-09-24 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light scattering from particles in the nanometric and micrometric size range is relevant in several research fields, such as aerosol science and nanotechnology. In many applications, the description of the optical properties of non-spherical, inhomogeneous particles is still inadequate or requires demanding numerical calculations. Lorenz–Mie scattering and effective medium approximations represent currently the main theoretical tools to model such particles, but their effectiveness has been recently called into question. This work examines how the morphology of a particle affects its scattering parameters from an experimental standpoint, supporting findings with extensive simulations. The dust content of Antarctic, Greenlandic, and Alpine ice cores is analysed with a particle-by-particle approach. Moreover, a study on colloidal aggregates shows that correlations among the fields radiated by primary particles are responsible for the poor agreement of effective medium approximations with experimental results. On the theoretical side, an interpretation in terms of the structure factor is given, which satisfactorily describes the data. The insights of this thesis are relevant for quantifying the contribution of mineral dust to the radiative energy balance of the Earth.

ECAI 2023

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Publisher : IOS Press
ISBN 13 : 164368437X
Total Pages : 3328 pages
Book Rating : 4.6/5 (436 download)

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Book Synopsis ECAI 2023 by : K. Gal

Download or read book ECAI 2023 written by K. Gal and published by IOS Press. This book was released on 2023-10-18 with total page 3328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial intelligence, or AI, now affects the day-to-day life of almost everyone on the planet, and continues to be a perennial hot topic in the news. This book presents the proceedings of ECAI 2023, the 26th European Conference on Artificial Intelligence, and of PAIS 2023, the 12th Conference on Prestigious Applications of Intelligent Systems, held from 30 September to 4 October 2023 and on 3 October 2023 respectively in Kraków, Poland. Since 1974, ECAI has been the premier venue for presenting AI research in Europe, and this annual conference has become the place for researchers and practitioners of AI to discuss the latest trends and challenges in all subfields of AI, and to demonstrate innovative applications and uses of advanced AI technology. ECAI 2023 received 1896 submissions – a record number – of which 1691 were retained for review, ultimately resulting in an acceptance rate of 23%. The 390 papers included here, cover topics including machine learning, natural language processing, multi agent systems, and vision and knowledge representation and reasoning. PAIS 2023 received 17 submissions, of which 10 were accepted after a rigorous review process. Those 10 papers cover topics ranging from fostering better working environments, behavior modeling and citizen science to large language models and neuro-symbolic applications, and are also included here. Presenting a comprehensive overview of current research and developments in AI, the book will be of interest to all those working in the field.

Laser Measurement Technology

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Publisher : Springer
ISBN 13 : 3662436345
Total Pages : 427 pages
Book Rating : 4.6/5 (624 download)

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Book Synopsis Laser Measurement Technology by : Axel Donges

Download or read book Laser Measurement Technology written by Axel Donges and published by Springer. This book was released on 2014-10-14 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser measurement technology has evolved in the last years in a versatile and reflationary way. Today, its methods are indispensable for research and development activities as well as for production technology. Every physicist and engineer should therefore gain a working knowledge of laser measurement technology. This book closes the gap of existing textbooks. It introduces in a comprehensible presentation laser measurement technology in all its aspects. Numerous figures, graphs and tables allow for a fast access into the matter. In the first part of the book the important physical and optical basics are described being necessary to understand laser measurement technology. In the second part technically significant measuring methods are explained and application examples are presented. Target groups of this textbook are students of natural and engineering sciences as well as working physicists and engineers, who are interested to make themselves familiar with laser measurement technology and its fascinating potentials.

International Aerospace Abstracts

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Publisher :
ISBN 13 :
Total Pages : 980 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Aerospace Abstracts by :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World

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Publisher : CRC Press
ISBN 13 : 1000957829
Total Pages : 3529 pages
Book Rating : 4.0/5 (9 download)

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Book Synopsis Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World by : Georgios Anagnostou

Download or read book Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World written by Georgios Anagnostou and published by CRC Press. This book was released on 2023-04-12 with total page 3529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World contains the contributions presented at the ITA-AITES World Tunnel Congress 2023 (Athens, Greece, 12 – 18 May, 2023). Tunnels and underground space are a predominant engineering practice that can provide sustainable, cost-efficient and environmentally friendly solutions to the ever-growing needs of modern societies. This underground expansion in more diverse and challenging infrastructure types or to novel underground uses can foster the changes needed. At the same time, the tunneling and underground space community needs to be better prepared and equipped with knowledge, tools and experience, to deal with the prevailing conditions, to successfully challenge and overcome adversities on this path. The papers in this book aim at contributing to the analysis of challenging conditions, the presentation and dissemination good practices, the introduction of new concepts, new tools and innovative elements that can help engineers and all stakeholders to reach their end goals. Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World covers a wide range of aspects and topics related to the whole chain of the construction and operation of underground structures: Knowledge and Passion to Expand Underground for Sustainability and Resilience Geological, Geotechnical Site Investigation and Ground Characterization Planning and Designing of Tunnels and Underground Structures Mechanised Tunnelling and Microtunnelling Conventional Tunnelling, Drill-and-Blast Applications Tunnelling in Challenging Conditions - Case Histories and Lessons Learned Innovation, Robotics and Automation BIM, Big Data and Machine Learning Applications in Tunnelling Safety, Risk and Operation of Underground Infrastructure, and Contractual Practices, Insurance and Project Management The book is a must-have reference for all professionals and stakeholders involved in tunneling and underground space development projects.

Modeling, Analysis, and Visualization of Anisotropy

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Publisher : Springer
ISBN 13 : 3319613588
Total Pages : 406 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Modeling, Analysis, and Visualization of Anisotropy by : Thomas Schultz

Download or read book Modeling, Analysis, and Visualization of Anisotropy written by Thomas Schultz and published by Springer. This book was released on 2017-10-14 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the modeling, processing and visualization of anisotropy, irrespective of the context in which it emerges, using state-of-the-art mathematical tools. As such, it differs substantially from conventional reference works, which are centered on a particular application. It covers the following topics: (i) the geometric structure of tensors, (ii) statistical methods for tensor field processing, (iii) challenges in mapping neural connectivity and structural mechanics, (iv) processing of uncertainty, and (v) visualizing higher-order representations. In addition to original research contributions, it provides insightful reviews. This multidisciplinary book is the sixth in a series that aims to foster scientific exchange between communities employing tensors and other higher-order representations of directionally dependent data. A significant number of the chapters were co-authored by the participants of the workshop titled Multidisciplinary Approaches to Multivalued Data: Modeling, Visualization, Analysis, which was held in Dagstuhl, Germany in April 2016. It offers a valuable resource for those working in the field of multi-directional data, vital inspirations for the development of new models, and essential analysis and visualization techniques, thus furthering the state-of-the-art in studies involving anisotropy.

Advances in Communication, Devices and Networking

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Publisher : Springer Nature
ISBN 13 : 981154932X
Total Pages : 502 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Advances in Communication, Devices and Networking by : Rabindranath Bera

Download or read book Advances in Communication, Devices and Networking written by Rabindranath Bera and published by Springer Nature. This book was released on 2020-07-27 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers recent trends in the field of devices, wireless communication and networking. It gathers selected papers presented at the International Conference on Communication, Devices and Networking (ICCDN 2019), which was organized by the Department of Electronics and Communication Engineering, Sikkim Manipal Institute of Technology, Sikkim, India, on 9–10 December 2019. Gathering cutting-edge research papers prepared by researchers, engineers and industry professionals, it will help young and experienced scientists and developers alike to explore new perspectives, and offer them inspirations on how to address real-world problems in the areas of electronics, communication, devices and networking.

Earth Resources

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Publisher :
ISBN 13 :
Total Pages : 760 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Earth Resources by :

Download or read book Earth Resources written by and published by . This book was released on 1986 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Applied Optics

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Publisher :
ISBN 13 :
Total Pages : 444 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Applied Optics by :

Download or read book Applied Optics written by and published by . This book was released on 1998 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Structure and Properties of Fat Crystal Networks, Second Edition

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Publisher : CRC Press
ISBN 13 : 1439887624
Total Pages : 521 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Structure and Properties of Fat Crystal Networks, Second Edition by : Alejandro G. Marangoni

Download or read book Structure and Properties of Fat Crystal Networks, Second Edition written by Alejandro G. Marangoni and published by CRC Press. This book was released on 2012-09-25 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lipid science and technology has grown exponentially since the turn of the millennium. The replacement of unhealthy fats in the foods we eat, and of petroleum-based ingredients in the cosmetics we use, is a top priority for consumers, government, and industry alike. Particularly for the food industry, removing trans fats and reducing saturated fat in foods has produced a major challenge: How do we create structure with a minimum amount of structuring material? A comprehensive omnibus, Structure and Properties of Fat Crystal Networks, Second Edition clarifies the complex relationship between triglyceride composition of vegetable oils and fats, the physicochemical properties of triglycerides in simple and complex model systems, their crystallization, and melting behavior. Furthermore, it dives into the implications of these materials on the functional properties in food systems. Replacing ingredients, optimizing functionality, and improving health necessitate the ability to relate the structural organization present in a material to macroscopic properties. Revisiting concepts and approaches used in the study of fat crystal networks, the second edition includes new developments, particularly intermolecular interactions, and thoroughly updated analytical methods. Succinct, clear, and complete, this book is designed to help students and early-career researchers make the study of fats a more focused, less frustrating, and less expensive endeavor.

Physics Briefs

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Publisher :
ISBN 13 :
Total Pages : 1146 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Physics Briefs by :

Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt: