Author: Jonathan T. H. Wu Publisher: John Wiley & Sons ISBN: 1119375843 Category : Technology & Engineering Languages : en Pages : 414
Book Description
The first book to provide a detailed overview of Geosynthetic Reinforced Soil Walls Geosynthetic Reinforced Soil (GRS) Walls deploy horizontal layers of closely spaced tensile inclusion in the fill material to achieve stability of a soil mass. GRS walls are more adaptable to different environmental conditions, more economical, and offer high performance in a wide range of transportation infrastructure applications. This book addresses both GRS and GMSE, with a much stronger emphasis on the former. For completeness, it begins with a review of shear strength of soils and classical earth pressure theories. It then goes on to examine the use of geosynthetics as reinforcement, and followed by the load-deformation behavior of GRS mass as a soil-geosynthetic composite, reinforcing mechanisms of GRS, and GRS walls with different types of facing. Finally, the book finishes by covering design concepts with design examples for different loading and geometric conditions, and the construction of GRS walls, including typical construction procedures and general construction guidelines. The number of GRS walls and abutments built to date is relatively low due to lack of understanding of GRS. While failure rate of GMSE has been estimated to be around 5%, failure of GRS has been found to be practically nil, with studies suggesting many advantages, including a smaller susceptibility to long-term creep and stronger resistance to seismic loads when well-compacted granular fill is employed. Geosynthetic Reinforced Soil (GRS) Walls will serve as an excellent guide or reference for wall projects such as transportation infrastructure—including roadways, bridges, retaining walls, and earth slopes—that are in dire need of repair and replacement in the U.S. and abroad. Covers both GRS and GMSE (MSE with geosynthetics as reinforcement); with much greater emphasis on GRS walls Showcases reinforcing mechanisms, engineering behavior, and design concepts of GRS and includes many step-by-step design examples Features information on typical construction procedures and general construction guidelines Includes hundreds of line drawings and photos Geosynthetic Reinforced Soil (GRS) Walls is an important book for practicing geotechnical engineers and structural engineers, as well as for advanced students of civil, structural, and geotechnical engineering.
Author: Daniel V. Engovatov Publisher: Stanford University ISBN: Category : Languages : en Pages : 126
Book Description
Much work has been done on trying to gain insight into the dynamics of accreting systems, such as black hole and neutron star binaries, by analyzing timing measurements from X-ray telescopes. In this thesis we present a novel approach to this problem using a kurtosis measure of the wavelet distribution obtained from the light curve to quantify the presence of intermittent activity. This method is applied to large RXTE data sets for GRS 1915+105, and Cygnus X-1. We demonstrate a new approach to reveal bursting modes. Negative correlation between the presence of a low frequency QPO in the Cygnus X-1 Fourier power spectrum and a wavelet kurtosis indicator of temporal intermittency is observed. A possible interpretation of this anti-correlation is developed using a "dripping handrail" transient chaos model.
Author: Clare Goodrick-Clarke Publisher: North Atlantic Books ISBN: 9781556435720 Category : Body, Mind & Spirit Languages : en Pages : 254
Book Description
George Robert Stowe Mead (1863-1933) was a major translator, editor, and commentator on Gnostic and hermetic literature and thus a pivotal figure linking the late 19th-century esoteric revival to 20th-century art, literature, and psychology. As a young convert to the new movement of theosophy, he served as private secretary to its co-founder, Helena Petrovna Blavatsky, and after founding the European section of the Theosophical Society edited its London journal, Lucifer, for many years. Mead's initial interest in theosophy and Hinduism soon blossomed into a lifelong and wide-ranging engagement with the texts of Gnosticism, neo-Platonism, and hermeticism. His editions and commentaries on previously inaccessible sources became standard works before the First World War and an important source of inspiration to such figures as Jung, Ezra Pound, Yeats, and Robert Duncan. A new entry in the Western Masters Series of concise biographies noting key figures in the Western esoteric tradition, G.R.S. Mead and the Gnostic Quest introduces Mead's life, works, and influences, combining a substantial biography with a collection of his most important writings.
Author: Jonathan T. H. Wu
Author: Daniel V. Engovatov
Author: Clare Goodrick-Clarke
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