Digital Commons Network^™

Seasonal Adjustment Of Naira Exchange Rate Statistics 1970-1995, O M. Akinuli

CBN Occasional Papers

This paper uses a current statistical approach to examine and adjust the seasonalities in the Naira exchange rate statistics, vis-a-vis the U.S. Dollar and the pound sterling for a period of twenty-five (25) years. Such study is necessary as it helps to understand the behavioural pattern of a trend in an attempt to predict the future. An investigation like this also helps to expose both the short and long run tendencies of a series which may require urgent or new policy measures to be taken sooner than expected. This paper reviews the regimes of exchange rate under the period, the …

Soft Computing Explains Heuristic Numerical Methods In Data Processing And In Logic Programming, Hung T. Nguyen, Vladik Kreinovich, Bernadette Bouchon-Meuiner

Departmental Technical Reports (CS)

We show that fuzzy logic and other soft computing approaches explain and justify heuristic numerical methods used in data processing and in logic programming, in particular, M-methods in robust statistics, regularization techniques, metric fixed point theorems, etc.

How To Make World Wide Web Sites Faster And Easier To Use, Misha Kosheleva

Departmental Technical Reports (CS)

Working Notes of the AAAI Symposium on Frontiers in Soft Computing and Decision Systems, Boston, MA, November 8-10, 1997.

We propose a new idea of organizing Web sites so that the Web will be easier and faster to use.

Non-Equilibrium Thermodynamics Explains Semiotic Shapes: Applications To Astronomy And To Non-Destructive Testing Of Aerospace Systems, Roberto A. Osegueda, Carlos M. Ferregut, Mary J. George, Jose M. Gutierrez, Vladik Kreinovich

Departmental Technical Reports (CS)

Proceedings of the International Conference on Intelligent Systems and Semiotics (ISAS'97), National Institute of Standards and Technology Publ., Gaithersburg, MD, 1997, pp. 378-382.

Celestial bodies such as galaxies, stellar clusters, planetary systems, etc., have different geometric shapes (e.g., galaxies can be spiral or circular, etc.). Usually, complicated physical theories are used to explain these shapes; for example, several dozen different theories explain why many galaxies are of spiral shape. Some rare shapes are still difficult to explain.

It turns out that to explain these "astroshapes", we do not need to know the details of physical equations: practically all the shapes …

A Generalized Mahonian Statistic On Absorption Ring Mappings, Don Rawlings

Mathematics

Based on a coin-tossing scheme, a generalized Mahonian statistic is defined on absorption ring mappings and applied in obtaining combinatorial interpretations of the coefficient ofq^jin the expansion of ∏^k_i=1 (1+q+q²+…+q^m_i). In the permutation case, the statistic coincides with one studied by Han that specializes many known Mahonian statistics.

A Study Of The Volatile Matter Of Coal As A Function Of The Heating Rate, Enrique Santos

Masters Theses & Specialist Projects

A study of volatile matter yields as a function of the heating rate was conducted. A suite of 21 coal and coke samples varying in rank from anthracitic to lignitic and heating rates from 10°C/min to about 450°C/min were used in the study. Heating rates up to 60°C per minute, which are typically used in ASTM Test Method 5142 (instrumental Proximate Analysis), were achieved in a macro thermogravimetric analysis (TGA) system. Heating rates of 50-200°C/min were obtained in a micro TGA system. All measurements were made in a nitrogen atmosphere. The results of the study illustrate the dependance of the …

A Study Of The Stochastic Behavior Of Durable Goods Consumption, Alexander Lebedinsky

Masters Theses & Specialist Projects

The author of this thesis examines the stochastic behavior of durables consumption in the rational expectations/permanent income hypothesis framework. The testing in this paper parallels the studies conducted by other researchers, who basing their work mainly on quarterly data rejected the frictionless rational expectations/permanent income hypothesis. The distinctive feature of this thesis is that the models are examined using monthly instead of quarterly data. The results of the estimation are compared to the results based on quarterly data. The results show that estimates obtained using monthly data seem to be more consistent with the frictionless rational expectations/permanent income hypothesis than …

Issue 7, Allen Lanham

NoteBooth

Tech training facility opens; Booth Library renovation plan begins

The Probe, Issue 179 - August 1997

The Probe: Newsletter of the National Animal Damage Control Association

Contents:
The Uneasy Conscience of the Animal Rights Movement
Calendar of Upcoming Events
NADCA Officers' Nominations Needed
Berryman Institute Announces Fellows
Reviews of the Video: “Balancing Nature – Trapping in Today’s World”
New Product Available: “Scarecrow” by Contech Deters Mammals, Birds
Garlic Repellent Device for Deer, Rabbits

The Tiger Vol. 90 Issue 26 1997-08-01, Clemson University

Tiger Newspapers

No abstract provided.

Magneto-Aerotaxis In Marine Coccoid Bacteria, Richard B. Frankel, Dennis A. Bazylinski, Mark S. Johnson, Barry L. Taylor

Physics

Magnetotactic cocci swim persistently along local magnetic field lines in a preferred direction that corresponds to downward migration along geomagnetic field lines. Recently, high cell concentrations of magnetotactic cocci have been found in the water columns of chemically stratified, marine and brackish habitats, and not always in the sediments, as would be expected for persistent, downward-migrating bacteria. Here we report that cells of a pure culture of a marine magnetotactic coccus, designated strain MC-1, formed microaerophilic bands in capillary tubes and used aerotaxis to migrate to a preferred oxygen concentration in an oxygen gradient. Cells were able to swim in …

Multiple Job Holding In Russia During Economic Transition, Mark C. Foley

Discussion Papers

No abstract provided.

Spurious Electrons In Electron Spectrometers And Their Effect On Differential Electron Impact Ionization Cross-Section Measurements, M. Eugene Rudd

M. Eugene Rudd Publications

The effect of the nonideal response characteristics of electrostatic analyzers is described and equations are derived, which allow a calculation of the distortion that this causes in measurements of angular and energy distributions of electrons from atomic collisions, especially in electron impact. Examples are given that show how a contamination as small as 10^-5 from spurious electrons generated inside an analyzer can explain the peak seen at zero angle in some angular distribution measurements and the filling in of the minimum in the energy distributions in others.

Graduate Bulletin & Catalog | 1997-1998, Jacksonville State University

Bulletins & Catalogs | Graduate

Vol. 21, No. 1 (August 1997). Jacksonville State was granted University status in 1966 and began adding graduate programs to its curriculum at that time. Graduate bulletins and catalogs contain information on the academic calendar, policies and procedures, faculty, scholarships and tuition, and degree requirements for graduate programs.

Hypersurfaces In R-D And The Variance Of Exit Times For Brownian Motion, Kimberly Kinateder, Patrick Mcdonald

Mathematics and Statistics Faculty Publications

Using the first exit time for Brownian motion from a smoothly bounded domain in Euclidean space, we define two natural functionals on the space of embedded, compact, oriented, unparametrized hypersurfaces in Euclidean space. We develop explicit formulas for the first variation of each of the functionals and characterize the critical points.

Towards Computers Of Generation Omega - Non-Equilibrium Thermodynamics, Granularity, And Acausal Processes: A Brief Survey, Misha Kosheleva, Vladik Kreinovich

Departmental Technical Reports (CS)

Proceedings of the International Conference on Intelligent Systems and Semiotics (ISAS'97), National Institute of Standards and Technology Publ., Gaithersburg, MD, 1997, pp. 383-388.

Nowadays, we are using mainly computer of fourth generation, and we are designing fifth-generation computers. It is reasonable to ask: what is the perspective? What will the computers of generation omega look like?

--As the speed of data processing increases, we face a natural limitation of causality, according to which the speed of all processes is limited by the speed of light.

--Lately, a new area of acausal (causality violating) processes has entered mainstream physics.

This …

Multi-Resolution Data Processing: It Is Necessary, It Is Possible, It Is Fundamental, Scott A. Starks, Vladik Kreinovich, Alex Meystel

Departmental Technical Reports (CS)

Experience shows that many data processing problems are difficult to solve, and some of these problems have even been proven to be computationally intractable. Human experts successfully solve many such problems by using a hierarchical, multi-resolution approach. These multi-resolution methods are, in several cases, provably optimal. However, due to the computational intractability of the problem itself, the multi-resolution approach can only work if the systems that we are analyzing are themselves hierarchical. We show that, first, due to (inevitable) measurement inaccuracies, an arbitrary input data is consistent with the hierarchical model, and second, that in many cases, the actual physical …

1997-1998 Wiest Hall Guide, Fort Hays State University

Buildings & Facilities

This black and white twenty one page document features a guide for those living in Wiest Hall, including a list of expectations, amenities, and visitation policies.

The Eclipsing Double-Lined Spectroscopic Binary System V505 Persei, Laurence A. Marschall, Robert P. Stefanik, Claud H. Lacy, Guillermo Torres, David B. Williams, Franz Agerer

Physics and Astronomy Faculty Publications

The recently-discovered eclipsing double-lined spectroscopic binary V505 Persei (SAO 23229) consists of two nearly identical F5 main sequence stars in a 4.2 day orbit. We have obtained both spectroscopic and photometric observations of the binary that densely sample the complete cycle of radial velocity and light variations. These observations have been used to determine the elements of the orbit, to determine individual masses of the stars in the system to a precision of better than 1%, and to estimate an age for the system. The derived properties agree well with current stellar structure models and provide fundamental data for tests …

News From Hope College, Volume 29.1: August, 1997, Hope College

News from Hope College

No abstract provided.

A Unified Green's Function Analysis Of Complicated Dfb Lasers, Jim D. Freeze, Michael A. Jensen, Richard H. Selfridge

Faculty Publications

An efficient full-wave analysis technique for one-dimensional optical domains, known as the recursive Green's function method (RGFM), is presented for evaluation of distributed feedback (DFB) laser cavities with arbitrary material profiles. The method first constructs the Green's function of an inhomogeneous domain and subsequently uses Green's theorem to determine the laser optical field, lasing wavelength, and threshold gain. The technique is applied to investigate the performance of three DFB laser structures: a chirped-grating configuration, a modulated stripe width design, and a reduced duty cycle complex-coupled device. These structures are evaluated in terms of their single-mode lasing behavior and the uniformity …

Infinite-Dimensional Hamilton-Jacobi-Bellman Equations In Gauss-Sobolev Spaces, Pao-Liu Chow, Jose-Luis Menaldi

Mathematics Faculty Research Publications

We consider the strong solution of a semi linear HJB equation associated with a stochastic optimal control in a Hilbert space H: By strong solution we mean a solution in a L²(μ,H)-Sobolev space setting. Within this framework, the present problem can be treated in a similar fashion to that of a finite-dimensional case. Of independent interest, a related linear problem with unbounded coefficient is studied and an application to the stochastic control of a reaction-diffusion equation will be given.

The Role Of Alcohol And Stress On Measures Of Depression And Anxiety Among College Students, Jeffrey F. Porter

Masters Theses

In clinical literature regarding the effects of regular alcohol use, psychological benefits of moderate consumption have been suggested (Neff & Husaini, 1982; Neff, 1984; Neff & Husaini, 1985; Neff, 1985; Neff, 1986; Neff, 1993, Lipton, 1994). Despite the diverse groups with which this theory has been examined, no published studies have lookeq specifically at the high-risk group of college undergraduates. Subjects were surveyed to assess their typical drinking behavior, the number of stressful events they had experienced within the past 12 months, their perceived social support, and depressive and anxiety symptoms they experienced within the seven days leading up to …

School Of Law Commencement: August 1, 1997, University Of North Dakota

UND Commencement Programs

School of Law Commencement program from August 1, 1997.

Quasi-Steady Monopole And Tripole Attractors In Relaxing Vortices, Louis F. Rossi, Joseph F. Lingevitch, Andrew J. Bernoff

All HMC Faculty Publications and Research

Using fully nonlinear simulations of the two-dimensional Navier–Stokes equations at large Reynolds number (Re), we bracket a threshold amplitude above which a perturbed Gaussian monopole will relax to a quasi-steady, rotating tripole, and below which will relax to an axisymmetric monopole. The resulting quasi-steady structures are robust to small perturbations. We propose a means of measuring the decay rate of disturbances to asymptotic vortical structures wherein streamlines and lines of constant vorticity correspond in some rotating or translating frame. These experiments support the hypothesis that small or moderate deviations from asymptotic structures decay through inviscid and viscous mixing.

Wsu Research News, Fall 1997, Office Of Research And Sponsored Programs, Wright State University

WSU Research News

A twelve page newsletter of the WSU Research News. The WSU Research News was published monthly beginning in June of 1968 and issued by the Office of Research Development. This newsletter was created to provide information to the WSU faculty about the availability of outside funds for research and educational programs, new developments that may affect availability of funds, and general information on research and educational activities at Wright State University.

Usf Women's Club Yearbook, 1997–1998, Usf Women's Club

USF Women’s Club Collection

Yearbook of the USF Women's Club. Inside is a list of past presidents, officers, committee chairmen, and members for 1997–1998. The booklet also includes interest groups, calendar of events, and a copy of the constitution and by-laws from the handbook.

[Price Laboratory School] Newsletter, V8n1, August-September 1997, University Of Northern Iowa. Malcolm Price Laboratory School

Malcolm Price Laboratory School Newsletter

Inside this issue:
-- Student enrollment fee policy 1997-98
-- PLS non-discrimination policy and grievance procedures
-- New UNI-PLS phone system
-- Volunteers needed for August registration
-- Registration days
-- UNI Student employees
-- Elementary news...
-- PLS elementary mathematics lending library
-- Northern University High School Falls Sports Program 1997-1998
-- Join PTP...Because it matters to our Children!
-- Campbell's Labels for Education Program: Here's What to Save:
-- Middle School...
-- NUHS concert choir information
-- Music, Drama & TV
-- Secondary News....

Book Reviews, The Condor

Condor

No abstract provided.

Mccuster Hall Guide 1997-98, Fort Hays Kansas State College

Buildings & Facilities

This black and white eighteen page document features a guidebook for the McGrath and Custer halls, and details the shared amenities and rules for both.