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Researchers at the Los Alamos National Laboratory (LANL) are
interested in quantitatively reconstructing an object using Abel
transform x-ray tomography. Specifically, they obtain a radiograph
by x-raying an object and attempt to quantitatively determine the
number and types of materials and the thicknesses of each material
layer. Their current methodologies either fail to provide a
quantitative description of the object or are generally too slow to
be useful in practice. As an alternative, the problem is modeled
here as a mixed variable programming (MVP) problem, in which some
variables are nonnumeric and for which no derivative information is
available. The generalized pattern search (GPS) algorithm for
linearly constrained MVP problems is applied to the x-ray
tomography problem, by means of the NOMADm MATLABr software
package. Numerical results are provided for several test
configurations of cylindrically symmetrical objects and show that,
while there are difficulties to be overcome by researchers at LANL,
this method is promising for solving x-ray tomography object
reconstruction problems in practice.
This scarce antiquarian book is a selection from Kessinger
Publishing's Legacy Reprint Series. Due to its age, it may contain
imperfections such as marks, notations, marginalia and flawed
pages. Because we believe this work is culturally important, we
have made it available as part of our commitment to protecting,
preserving, and promoting the world's literature. Kessinger
Publishing is the place to find hundreds of thousands of rare and
hard-to-find books with something of interest for everyone
This scarce antiquarian book is a selection from Kessinger
Publishing's Legacy Reprint Series. Due to its age, it may contain
imperfections such as marks, notations, marginalia and flawed
pages. Because we believe this work is culturally important, we
have made it available as part of our commitment to protecting,
preserving, and promoting the world's literature. Kessinger
Publishing is the place to find hundreds of thousands of rare and
hard-to-find books with something of interest for everyone!
This scarce antiquarian book is a selection from Kessinger
Publishing's Legacy Reprint Series. Due to its age, it may contain
imperfections such as marks, notations, marginalia and flawed
pages. Because we believe this work is culturally important, we
have made it available as part of our commitment to protecting,
preserving, and promoting the world's literature. Kessinger
Publishing is the place to find hundreds of thousands of rare and
hard-to-find books with something of interest for everyone
School teachers and administrators may be the largest single group
of rule enforcers in American society. Operating under legislative
statutes, court cases, board policies, program regulations, and so
on, there appears to be no end to that part of their professional
tasks that calls for them to be on-the-spot enforcers in an adult
to child relationship. Using constitutionality of operations within
a school as its central focal point, the book takes both the
broader and the narrower aspects of the law and combines them to
provide an extended understanding of the realities in which
professionals must perform as employees in elementary and secondary
schools. Organized into twelve broad topic areas, the handbook
covers all key aspects of the law as it applies from administering
personnel to religion in the schools. Appropriate court cases are
cited throughout. This professional guide will be useful for
teachers with an interest in school law, for graduate students
preparing for a career in school administration, and for
administrators in need of a precise, but succinct treatment of the
law and schools.
This volume combines both the broader and narrower aspects of
school-related law to provide increased understanding of the legal
realities and responsibilities of American teachers and
administrators. The book depicts the flow of authority in American
polity, from the national level in the Constitution's grant of
power in the Tenth Amendment to the local level in the development
of policy by local school boards. Selected statutes and cases
provide a framework of national rulings on educational matters, but
the emphasis is on the role of the state as the critical force in
decision making for schools. This book is pragmatic, rather than
theoretical, and is aimed at the practitioner. Citations provide
ready reference for dealing with daily problems that may have legal
ramifications.
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