Location, Location, Location: It Applies to Sports Marketing Too

Minor-league baseball is the farm system of the major-leagues. They grow and teach players who eventually move up to the majors, while at the same time providing entertainment at a cheaper price for consumers. Minor-league baseball teams are located all around the country. The main focus of this paper is to look into the effects of location to the minor-league team with respect to their major-league affiliate. Using data from the eastern league AA teams, Statistical Package for the Social Sciences (SPSS) analyses have been run to find out the influences on attendance. Distance from the minor-league team to its major-league affiliate did have an influence on attendance. The further away the minor-league team was from its major-league affiliate, or any major-league team, had a positive effect on attendance

Alien Registration- Swimm, Danile V. (Monticello, Aroostook County)

https://digitalmaine.com/alien_docs/33958/thumbnail.jp

A Study of Certain Atmospheric Effects on Radar Accuracy

Along with other factors, accurate radar target location is dependent upon a knowledge of the electromagnetic propagation path. The propagation path is a function of the characteristics of the medium through which the signal travels. Advances in the resolution capabilities of modern electronic tracking equipment have led to requirements for more accurate prediction of atmospheric refraction characteristics. The inherent error of the equipment is, in many cases, less than the error introduced by the atmospheric refractive effects. After corrections to observed launch angle and target range have been made on the basis of atmospheric refraction information, residual errors in range and angle determination may exceed the instrumental error of the radar. The value of designing a system, perhaps at considerable expense, to provide accuracies better than the limits presently imposed by these residual errors is questionable

Alien Registration- Swimm, William F. (Monticello, Aroostook County)

https://digitalmaine.com/alien_docs/33961/thumbnail.jp

Alien Registration- Swimm, Jesse H. (Monticello, Aroostook County)

https://digitalmaine.com/alien_docs/33959/thumbnail.jp

Alien Registration- Swimm, Walter B. (Monticello, Aroostook County)

https://digitalmaine.com/alien_docs/33960/thumbnail.jp

Alien Registration- Swimm, William F.,Jr. (Monticello, Aroostook County)

https://digitalmaine.com/alien_docs/34021/thumbnail.jp

Semiclassical Calculations of Vibrational Energy Levels for Non-Separable Systems Using the Birkhoff-Gustavson Normal Form

We present a semiclassical method of calculating vibrational energy levels for a system of nonseparable coupled oscillators. For a Hamiltonian written as a power series in which the leading terms are given by a sum of one‐dimensional harmonic oscillator Hamiltonians, the method involves transforming the original classical Hamiltonian via a succession of canonical transformations into a normal form which is a power series originally defined by Birkhoff and later generalized by Gustavson. Two cases are distinguished. If the harmonic oscillator frequencies in the unperturbed Hamiltonian are incommensurable, then the normal form is a power series whose terms are products of one‐dimensional harmonic oscillator Hamiltonians; if the frequencies in the unperturbed Hamiltonian are commensurable, then additional terms which cannot be written as products of one‐dimensional harmonic oscillator Hamiltonians enter into the normal form. Once the normal form is obtained, semiclassical quantization of action variables is straightforward. The incommensurable case yields a formula for the energy spectrum which is a power series in the quantum numbers. The commensurable case is more complicated, and yields a form from which energy levels may be obtained individually by numerical calculation and quantization of a one‐dimensional phase integral. Nonseparable two‐dimensional examples are treated for each case. The results obtained for both cases show excellent agreement with quantum mechanical calculations. The quantum calculations indicate that all of the energy levels fall into a regular pattern. Correction to this article: https://doi.org/10.1063/1.44550

Experimental and Numerical Study of Drag Reduction on Elliptical Cylinders Using Surface Grooves

Drag reduction on an object subject to external flow remains a topic of interest due to a wide range of applications. Previous studies showed that grooves on the surface of a circular cylinder lead to drag reduction, which had thus been applied to save energy in various implementations. In the present study, the effects of longitudinal surface grooves with respect to drag reduction on circular and elliptical cylinders were experimentally explored through resin additive manufacturing and a wind tunnel. Significant drag reduction originated by surface grooves was observed. In conjunction with experimental investigations, numerical analyses were performed with computational fluid dynamics (CFD) to examine the physical causes of the drag reduction. The numerical studies included two- and three-dimensional simulations of flow over circular and elliptical cylinders. The turbulent energy and wake regions of flow were discussed. Key factors in drag reduction were the location of the beginning of turbulence or vortices in the grooves, the boundary layer separation angle, and the size of the turbulent wake region. Through the numerical CFD simulations and experimental results, spanwise surface grooves on elliptical cylinders are verified to reduce drag