Monthly Catalog of United States Government Publications PDF Download

Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 836

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Author: Kathleen E. Wage
Publisher:
ISBN:
Category : Fourier analysis
Languages : en
Pages : 650

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Normal modes, the eigenfunctions of the ocean waveguide, are useful in underwater acoustics because the lowest modes provide an efficient description of the most energetic signals at long ranges. Understanding the structure of the mode arrivals at megameter ranges is crucial to tomographic and matched field processing applications, but there have been few opportunities for experimental observation of these signals. First, this thesis develops a short-time Fourier transform (STFT) framework for estimating broadband signals propagating in the lowest modes. Since previous research has focused on narrowband sources, this work concentrates on broadband processing issues. Specifically, it addresses the fundamental issue of frequency resolution required for mode estimation, analyzes the performance characteristics of two modal beamforming algorithms and explores the time/frequency trade-offs inherent in STFT mode processing. Second, this work presents a detailed analysis of the low-mode arrivals at megameter ranges using data from the Acoustic Thermometry of Ocean Climate experiment. Short-time Fourier processing of receptions at a range of 3,515 kilometers reveal a complicated multipath arrival structure. This thesis characterizes the temporal coherence of the arrivals, computes average dispersion curves, and examines trends in arrival time over five months of data.

Author: Dan E. Kelley
Publisher: Springer
ISBN: 1493988441
Category : Medical
Languages : en
Pages : 303

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This book presents the R software environment as a key tool for oceanographic computations and provides a rationale for using R over the more widely-used tools of the field such as MATLAB. Kelley provides a general introduction to R before introducing the ‘oce’ package. This package greatly simplifies oceanographic analysis by handling the details of discipline-specific file formats, calculations, and plots. Designed for real-world application and developed with open-source protocols, oce supports a broad range of practical work. Generic functions take care of general operations such as subsetting and plotting data, while specialized functions address more specific tasks such as tidal decomposition, hydrographic analysis, and ADCP coordinate transformation. In addition, the package makes it easy to document work, because its functions automatically update processing logs stored within its data objects. Kelley teaches key R functions using classic examples from the history of oceanography, specifically the work of Alfred Redfield, Gordon Riley, J. Tuzo Wilson, and Walter Munk. Acknowledging the pervasive popularity of MATLAB, the book provides advice to users who would like to switch to R. Including a suite of real-life applications and over 100 exercises and solutions, the treatment is ideal for oceanographers, technicians, and students who want to add R to their list of tools for oceanographic analysis.

Author: Hans von Storch
Publisher: Cambridge University Press
ISBN: 1139425099
Category : Science
Languages : en
Pages : 979

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Climatology is, to a large degree, the study of the statistics of our climate. The powerful tools of mathematical statistics therefore find wide application in climatological research. The purpose of this book is to help the climatologist understand the basic precepts of the statistician's art and to provide some of the background needed to apply statistical methodology correctly and usefully. The book is self contained: introductory material, standard advanced techniques, and the specialised techniques used specifically by climatologists are all contained within this one source. There are a wealth of real-world examples drawn from the climate literature to demonstrate the need, power and pitfalls of statistical analysis in climate research. Suitable for graduate courses on statistics for climatic, atmospheric and oceanic science, this book will also be valuable as a reference source for researchers in climatology, meteorology, atmospheric science, and oceanography.

Author: Kemp Plummer Battle
Publisher:
ISBN:
Category :
Languages : en
Pages : 952

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Author: Franklin D. Jones
Publisher:
ISBN: 9781422306840
Category :
Languages : en
Pages : 508

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Addresses the delivery of mental health services during wartime. Contents: Patient Flow in a Theater of Operations; Psychiatric Lessons of War; Traditional Warfare Combat Stress Casualties; Disorders of Frustration & Loneliness; Neuropsychiatric Casualties of Nuclear, Biological, & Chemical Warfare; Psychiatric Principles of Future Warfare; A Psychological Model of Combat Stress; U.S. Army, U.S. Air Force, & U.S. Naval Combat Psychiatry; Combat Stress Control in Joint Operations; Debriefing Following Combat; Post-combat Reentry; Behavioral Consequences of Traumatic Brain Injury; Disabling & Disfiguring Injuries; Conversion Disorders; Chronic Post-Traumatic Stress Disorders; Prisoner of War; & Follow-Up Studies of Vets. Illus.

Author: Trevor Elliot
Publisher: MDPI
ISBN: 390698091X
Category : Groundwater tracers
Languages : en
Pages : 1

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This book is a printed edition of the Special Issue "Environmental Tracers" that was published in Water

Author: Priscilla Roberts
Publisher: Cambridge Scholars Publishing
ISBN: 144388782X
Category : Social Science
Languages : en
Pages : 603

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China and the United States, two massive economic and military powers, cannot avoid engaging with each other. Enjoying what is often termed “the most important bilateral relationship in the world”, the two sometimes cooperate, but often compete, as their interests come into conflict. Both countries are separated not just by the Pacific Ocean, but also by their very different histories, experiences, societies, customs, and outlooks. Non-governmental, unofficial relationships and exchanges are often as important as formal dealings in determining the climate of Sino-American relations. For several decades in the mid-twentieth century, Chinese and Americans were virtually isolated from each other, trapped in icy hostility. Chinese scholars are now making up for lost time. This assortment of essays, most by mainland Chinese academics and students, focuses upon the role of culture – very broadly defined – in Sino-American affairs. Taking a holistic approach, in this collection over thirty authors focus on such topics as the influence of ideology, the impact of geopolitics, the use of rhetoric, soft power, educational encounters and exchanges, immigration, gender, race, identity, literature, television, movies, music, and the press. Cultural factors are, as the authors demonstrate, enormously significant in affecting how Chinese and Americans think about and approach each other, both as individuals and at the state level.

Author: Michael Canfield
Publisher:
ISBN:
Category : History
Languages : en
Pages : 336

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Book Description
Acetate overlay in pocket.Includes index. Bibliography: p. 307-308.

Author: Raymond Murphy
Publisher: Cambridge University Press
ISBN: 9780521011273
Category : Foreign Language Study
Languages : en
Pages : 360

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Book Description
This is an adaptation of Essential Grammar in Use for Thai elementary learners.