Download or read book Report of Conference on Seismic Propagation Study written by Seismic Propagation Study and published by . This book was released on 1971 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Second Conference on Seismic Propagation Study written by and published by . This book was released on 1971 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Conference on Seismic Propagation Study 2nd Held at Army Research Office Arlington Virginia on 15 December 1971 written by J. R. Lundien and published by . This book was released on 1972 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents discussions reviewed at a meeting on seismic propagation in various terrain conditions. Seismic sensors, seismic mapping, terrain models, and signal processing are among the subjects presented and discussed.

Download or read book Conference on Seismic Propagation Study written by R.F. Ballard and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Conference on Seismic Propagation Study Held at Army Engineer Waterways Experiment Station on 22 June 1971 written by R. F. Ballard and published by . This book was released on 1971 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report summarizes the discussions in a meeting held at the U.S. Army Engineer Waterways Experiment Station on 22 June 1971 to review the progress of the Seismic Propagation Study and to afford an opportunity for comments and recommendations for future work. Information is presented on subjects as follows: theoretical studies; objectives, avenues of approach and relations to other sensor studies; environmental data of the seismic sensor system; seismic response measurements and results; instrumentation display and demonstration; and empirical studies. (Author).

Download or read book PROCEEDINGS OF THE 2ND CONFERENCE ON SEISMIC PROPAGATION STUDY OFFICE CHIEF OF ENGINEERS US ARMY written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by Waterways Experiment Station (U.S.) and published by . This book was released on 1973 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Collection and Analysis of Seismic Wave Propagation Data written by and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1976 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Collection and Analysis of Seismic Wave Propagation Data written by David E. Willis and published by . This book was released on 1968 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report discusses the results of an extensive long-range reversed refraction profile which traverses the Michigan Basin and the Appalachian Mountains. Particular emphasis is placed on the attenuation of first compressional wave arrivals and on crustal-upper mantle structure. Also included are results of a survey on lake bottom seismic background noise in Lake Superior. Although large signal levels were obtained in the lake bottom, long periods of high background noise indicated that land based seismographs are superior. Theoretical studies in elastic wave scattering were made to evaluate the effect of nonhomogeneities on the propagation of elastic waves. Theoretical development of mode filtering (previously demonstrated empirically), is nearly completed. A LASA digital data convertor was designed, constructed, and put into operation. Two- and three-dimensional seismic ray-tracing techniques using digital modeling were developed. These techniques enable the seismologist to determine the effects of lateral inhomogeneities and irregularities in velocity interfaces on travel time and attenuation of seismic waves. (Author).

Download or read book List of Publications of the U S Army Engineers Waterway Experiment Station written by United States. Army. Corps of Engineers and published by . This book was released on 1976 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation of Seismic Wave Propagation in Eastern North America written by P. W. Pomeroy and published by . This book was released on 1978 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismic waves propagated and recorded at regional distances in eastern North America are being studies for possible use in discriminating between explosion and earthquake sources. This report deals with (a) the propagation characteristics of the regional seismic wave designated L sub g and (b) an evaluation of the usefulness of a particular ocean bottom seismograph system as an aid in discrimination of seismic sources at regional distances. Results of the study of the propagation characteristics of L sub g, with predominant frequencies of 1-3 hertz, is consistently the largest amplitude portion of the short period signal from the Eastern North American events studied. Analysis of the group velocity for each event studied shows a clustering of measurements in the 3.47 km/sec range for the earthquakes studied and a significantly lower 3.24 km/sec mean for measurements from the SALMON explosion. This lower value is believed to be the result of propagation path or source effects. When group velocity information was divided into two regions, E (h)--high group velocity (4.0-3.4 km/sec) energy--and E(l)--low group velocity (3.4-2.8 km/sec) energy, the ratios of these areas showed a discrimination between SALMON ((E(h)/E(l) .5) and the earthquakes ((E(h)/E(l).5). Phase velocity measurements made using records from Cumberland Plateau Seismic Observatory have a mean of 4.18 km/sec. Analysis of a second event also yields measurements in the 4.0-4.4 km/sec range.

Download or read book Proceedings of the International Conference on Microzonation for Safer Construction Research and Application written by and published by . This book was released on 1972 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1977 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seismic Response of Buried Pipes and Structural Components written by ASCE Committee on Seismic Analysis and published by . This book was released on 1983 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1967 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: