Download or read book Field Determination of Vertical Permeability to Air in the Unsaturated Zone written by Edwin P. Weeks and published by . This book was released on 1978 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete Permeability and Durability Performance written by Roberto J. Torrent and published by CRC Press. This book was released on 2021-12-22 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Durability and service life design of concrete constructions have considerable socio-economic and environmental consequences, in which the permeability of concrete to aggressive intruders plays a vital role. Concrete Permeability and Durability Performance provides deep insight into the permeability of concrete, moving from theory to practice, and presents over 20 real cases, such as Tokyo’s Museum of Western Art, Port of Miami Tunnel and Hong Kong-Zhuhai-Macao sea-link, including field tests in the Antarctic and Atacama Desert. It stresses the importance of site testing for a realistic durability assessment and details the "Torrent Method" for non-destructive measurement of air-permeability. It also delivers answers for some vexing questions: Should the coefficient of permeability be expressed in m2 or m/s? How to get a "mean" pore radius of concrete from gas-permeability tests? Why should permeability preferably be measured on site? How can service life of reinforced concrete structures be predicted by site testing of gas-permeability and cover thickness? Practitioners will find stimulating examples on how to predict the coming service life of new structures and the remaining life of existing structures, based on site testing of air-permeability and cover thickness. Researchers will value theoretical principles, testing methods, as well as how test results reflect the influence of concrete mix composition and processing.
Download or read book Mass Permeability and Thickness Changes in Abraded Fabrics written by Louis I. Weiner and published by . This book was released on 1965 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents the changes that take place during the abrasion of textile fabrics. Changes in permeability are shown to be influenced by the extent to which the abraded fabric will retain fiber debris during the course of the abrasion. While the permeability of a cotton oxford fabric decreases continuously and significantly up to the point of hole formation, the permeability of a sateen fabric increases during abrasion, an effect which is normally expected as a result of breakdown in the yarn structure. The extent to which the fiber debris is retained by the fabric is a function of the rate of loss of mass. Thickness decreases are a function more of the type of abrader than of the type of fabric. Changes in permeability as well as in thickness are not simple functions of the degree of abrasion of all fabric types; they must be viewed in terms of the response of specific fabrics to specific types of abrasive action. (Author).
Download or read book Translation written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1951 with total page 1130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Research of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1934 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Domestic Engineering written by and published by . This book was released on 1916 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Simon Coles Manganese Deposit Bedford County Pa written by W. H. Kerns and published by . This book was released on 1948 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Review written by and published by . This book was released on 1917 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial Engineering written by George Worthington and published by . This book was released on 1917 with total page 1294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New York Review of the Telegraph and Telephone and Electrical Journal written by and published by . This book was released on 1917 with total page 1238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Permeability Studies of a Lightweight Coated Fabric Subjected to Uniaxial Tensile Loads with and Without Prior Cycling written by Jerry W. Deaton and published by . This book was released on 1970 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Networks on Networks written by Allen G. Hunt and published by Morgan & Claypool Publishers. This book was released on 2016-01-01 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Order from chaos is simultaneously a mantra of physics and a reality in biology. Physicist Norman Packard suggested that life developed and thrives at the edge of chaos. Questions remain, however, as to how much practical knowledge of biology can be traced to existing physical principles, and how much physics has to change in order to address the complexity of biology. Phil Anderson, a physics Nobel laureate, contributed to popularizing a new notion of the end of “reductionism.” In this view, it is necessary to abandon the quest of reducing complex behavior to known physical results, and to identify emergent behaviors and principles. In the present book, however, we have sought physical rules that can underlie the behavior of biota as well as the geochemistry of soil development. We looked for fundamental principles, such as the dominance of water flow paths with the least cumulative resistance, that could maintain their relevance across a wide range of spatial and temporal scales, together with the appropriate description of solute transport associated with such flow paths. Thus, ultimately, we address both nutrient and water transport limitations of processes from chemical weathering to vascular plant growth. The physical principles guiding our effort are established in different, but related concepts and fields of research, so that in fact our book applies reductionist techniques guided by analogy. The fact that fundamental traits extend across biotic and abiotic processes, i.e., the same fluid flow rate is relevant to both, but that distinctions in topology of the connected paths lead to dramatic differences in growth rates, helps unite the study of these nominally different disciplines of geochemistry and geobiology within the same framework. It has been our goal in writing this book to share the excitement of learning, and one of the most exciting portions to us has been the ability to bring some order to the question of the extent to which soils can facilitate plant growth, and what limitations on plant sizes, metabolism, occurrence, and correlations can be formulated thereby. While we bring order to the soil constraints on growth , we also generate some uncertainties in the scaling relationships of plant growth and metabolism. Although we have made an first attempt to incorporate edaphic constraints into allometric scaling, this is but an initial foray into the forest.
Download or read book Bridge Maintenance Safety Management Life Cycle Sustainability and Innovations written by Hiroshi Yokota and published by CRC Press. This book was released on 2021-04-20 with total page 8732 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations contains lectures and papers presented at the Tenth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2020), held in Sapporo, Hokkaido, Japan, April 11–15, 2021. This volume consists of a book of extended abstracts and a USB card containing the full papers of 571 contributions presented at IABMAS 2020, including the T.Y. Lin Lecture, 9 Keynote Lectures, and 561 technical papers from 40 countries. The contributions presented at IABMAS 2020 deal with the state of the art as well as emerging concepts and innovative applications related to the main aspects of maintenance, safety, management, life-cycle sustainability and technological innovations of bridges. Major topics include: advanced bridge design, construction and maintenance approaches, safety, reliability and risk evaluation, life-cycle management, life-cycle sustainability, standardization, analytical models, bridge management systems, service life prediction, maintenance and management strategies, structural health monitoring, non-destructive testing and field testing, safety, resilience, robustness and redundancy, durability enhancement, repair and rehabilitation, fatigue and corrosion, extreme loads, and application of information and computer technology and artificial intelligence for bridges, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of making more rational decisions on maintenance, safety, management, life-cycle sustainability and technological innovations of bridges for the purpose of enhancing the welfare of society. The Editors hope that these Proceedings will serve as a valuable reference to all concerned with bridge structure and infrastructure systems, including engineers, researchers, academics and students from all areas of bridge engineering.
Download or read book Scientific Canadian Mechanics Magazine and Patent Office Record written by Canada. Patent Office and published by . This book was released on 1947-04 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permeability of Covers Over Low level Radioactive waste Burial Trenches West Valley Cattaraugus County New York written by David E. Prudic and published by . This book was released on 1980 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance and Durability of Bituminous Materials written by J.G. Cabrera and published by CRC Press. This book was released on 1995-11-09 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers new advances in materials and methods, particularly orientated towards the optimization of energy expenditure required for the preparation of aggregates, bituminous binders and bituminous mixtures and the implications which arise with regard to the European specifications and codes of practice.
Download or read book AIR PERMEABILITY written by and published by . This book was released on 1989 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
