ASSIMILATION AND PRACTICAL APPLICATION OF FIELD DATA IN WASHTENAW COUNTY MICHIGAN

2013 ◽  
Author(s):  
Randall Gregory ◽  
R.S.
Keyword(s):  
Field Data ◽  
Practical Application ◽  
Washtenaw County

THE DIRECT APPROACH TO MAGNETIC INTERPRETATION AND ITS PRACTICAL APPLICATION

Geophysics ◽  
1949 ◽  
Vol 14 (3) ◽  
pp. 290-320 ◽  
Author(s):  
Leo J. Peters
Keyword(s):  
Field Data ◽  
Potential Problem ◽  
Scalar Potential ◽  
Direct Calculation ◽  
Magnetic Data ◽  
Practical Application ◽  
Magnetic Field Data ◽  
Magnetic Interpretation ◽  
Basement Rocks ◽  
Derivatives Of

This paper discusses the solution of the inverse potential problem and its practical application in the interpretation of field data which have a scalar potential distribution. The discussion will be in terms of the interpretation of magnetic data. Among the topics discussed are: the direct calculation of basement relief, the derivation of the potential and the horizontal components of the field from the vertical intensity, the continuation of the field upward, the continuation of the field downward towards its source, the calculation of derivatives of the vertical intensity with special attention to the second and fourth, and the estimation of depths to igneous basement rocks. The uses of these tools and the information of practical value which can be obtained by their use are discussed and illustrated. Methods of rapidly making calculations using magnetic field data are given.

Chapter 11: Confronting Field Data: Aging and Sexing Problems

1973 ◽  
Vol 27 ◽  
pp. 58-64
Author(s):  
Kenneth M. Weiss
Keyword(s):  
Representative Sample ◽  
Field Data ◽  
Direct Evidence ◽  
Life Tables ◽  
Stable Processes ◽  
Demographic Analysis ◽  
Practical Application ◽  
Common Problems

This and the following chapters will deal with the practical application of our life tables to anthropological data. In order to fit field data to a model, one must be confident that the data are as accurate and reliable as possible. This is difficult with anthropological data, especially if one is working from the literature. In this chapter the methods and common problems associated with the aging and sexing of anthropological populations are discussed. This discussion may help the reader to recognize questionable aspects of his data and to correct them prior to fitting a model table.There is always the problem of the representativeness of the sample. If there is no direct evidence to suspect one’s sampling, the sample of skeletons or the census of a living population are usually assumed to be representative of stable processes. This is necessary to the application of our models. If a skeletal series is taken from a biased sample of burials, then of course it is not representative of the population from which it came. This is often true for juveniles (Schwidetzky 1965), and some means have been developed to make up for this deficiency. Where an unbiased, representative sample or census cannot be assumed, further demographic analysis is not likely to be productive.

Progress In The Practical Application Of Automated Image Analysis To Tem Negatives

1977 ◽  
Vol 35 ◽  
pp. 214-217
Author(s):  
F. A. Heckman ◽  
E. Redman ◽  
J.E. Connolly
Keyword(s):  
Image Analysis ◽  
Image Quality ◽  
Exposure Time ◽  
Image Contrast ◽  
Automated Image Analysis ◽  
Practical Application ◽  
Factors Affecting ◽  
High Image Quality ◽  
Qualitative Evidence ◽  
Comprehensive Study

In our initial publication on this subject1) we reported results demonstrating that contrast is the most important factor in producing the high image quality required for reliable image analysis. We also listed the factors which enhance contrast in order of the experimentally determined magnitude of their effect. The two most powerful factors affecting image contrast attainable with sheet film are beam intensity and KV. At that time we had only qualitative evidence for the ranking of enhancing factors. Later we carried out the densitometric measurements which led to the results outlined below.Meaningful evaluations of the cause-effect relationships among the considerable number of variables in preparing EM negatives depend on doing things in a systematic way, varying only one parameter at a time. Unless otherwise noted, we adhered to the following procedure evolved during our comprehensive study:Philips EM-300; 30μ objective aperature; magnification 7000- 12000X, exposure time 1 second, anti-contamination device operating.

Fifth Edition: the New Standard

2000 ◽  
Vol 5 (6) ◽  
pp. 1-7
Author(s):  
Christopher R. Brigham ◽  
James B. Talmage ◽  
Leon H. Ensalada
Keyword(s):  
Musculoskeletal System ◽  
Medical Information ◽  
Objective Assessment ◽  
Scientific Data ◽  
Practical Application ◽  
Fourth Edition ◽  
Appropriate Use ◽  
Medical Evaluation ◽  
Single Set

Abstract The AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Fifth Edition, is available and includes numerous changes that will affect both evaluators who and systems that use the AMA Guides. The Fifth Edition is nearly twice the size of its predecessor (613 pages vs 339 pages) and contains three additional chapters (the musculoskeletal system now is split into three chapters and the cardiovascular system into two). Table 1 shows how chapters in the Fifth Edition were reorganized from the Fourth Edition. In addition, each of the chapters is presented in a consistent format, as shown in Table 2. This article and subsequent issues of The Guides Newsletter will examine these changes, and the present discussion focuses on major revisions, particularly those in the first two chapters. (See Table 3 for a summary of the revisions to the musculoskeletal and pain chapters.) Chapter 1, Philosophy, Purpose, and Appropriate Use of the AMA Guides, emphasizes objective assessment necessitating a medical evaluation. Most impairment percentages in the Fifth Edition are unchanged from the Fourth because the majority of ratings currently are accepted, there is limited scientific data to support changes, and ratings should not be changed arbitrarily. Chapter 2, Practical Application of the AMA Guides, describes how to use the AMA Guides for consistent and reliable acquisition, analysis, communication, and utilization of medical information through a single set of standards.

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