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Full-Text Articles in Physical Sciences and Mathematics

Principal Angle, Principal Azimuth, And Principal-Angle Ellipsometry Of Film-Substrate Systems, R. M.A. Azzam, A.-R. M. Zaghloul Dec 1978

Principal Angle, Principal Azimuth, And Principal-Angle Ellipsometry Of Film-Substrate Systems, R. M.A. Azzam, A.-R. M. Zaghloul

Electrical Engineering Faculty Publications

When the film thickness is considered as a parameter, a system composed of a transparent film on an absorbing substrate (in a transparent ambient) is characterized by a range of principal angle ø¯min ≤ ø¯ ≤ ø¯max over which the associated principal azimuth ψ¯ varies between 0° and 90° (i.e., 0° ≤ ψ¯ ≤ 90°) and the reflection phase difference Δ assumes either one of the two values: +π/2 or −π/2. We determine the principal angle ø¯(d) and principal azimuth ψ¯(d) as functions of film thickness d for the vacuum-SiO2-Si system at …


Propagation Of Partially Polarized Light Through Anisotropic Media With Or Without Depolarization: A Differential 4 × 4 Matrix Calculus, R. M.A. Azzam Dec 1978

Propagation Of Partially Polarized Light Through Anisotropic Media With Or Without Depolarization: A Differential 4 × 4 Matrix Calculus, R. M.A. Azzam

Electrical Engineering Faculty Publications

We extend the scope of the Mueller calculus to parallel that established by Jones for his calculus. We find that the Stokes vector S of a light beam that propagates through a linear depolarizing anisotropic medium obeys the first-order linear differential equation dS/dz = mS, where z is the distance traveled along the direction of propagation and m is a 4 × 4 real matrix that summarizes the optical properties of the medium which influence the Stokes vector. We determine the differential matrix m for eight basic types of optical behavior, find its form for the most general anisotropic nondepolarizing …


Consequences Of Light Reflection At The Interface Between Two Transparent Media Such That The Angle Of Refraction Is 45°, R. M.A. Azzam Nov 1978

Consequences Of Light Reflection At The Interface Between Two Transparent Media Such That The Angle Of Refraction Is 45°, R. M.A. Azzam

Electrical Engineering Faculty Publications

The reflection of light at the interface between two transparent, homogeneous and optically isotropic media such that the angle of refraction is 45° has the following interesting consequences: (i) the interface relfectivity for the parallel (p) polarization is the square of that for the perpendicular (s) polarization; (ii) the angular deviation of the propagation direction upon refraction is equal to the polarization (or ellipsometric) angle ψ and (iii) the complex reflection coefficient for the ppolarization is stationary, in both magnitude and phase, with respect to small charges of the (refractive and/or absorptive) optical properties of …


An Analysis Of Investments In Residential Energy Conservation In Southeast Missouri, Ralph Gunderson Oct 1978

An Analysis Of Investments In Residential Energy Conservation In Southeast Missouri, Ralph Gunderson

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

This study examines the economic feasibility of residential solar heating. Climatic and economic variables used in this report represent those of Cape Girardeau, Missouri. An annual cost model is used to determine the conditions under which solar heating achieves a reduced annual cost of heating relative to gas and electric heating systems.


An Analysis Of Solar Heating Costs In Arkansas Broiler Houses, Ralph Gunderson, J. Martin Redfern Oct 1978

An Analysis Of Solar Heating Costs In Arkansas Broiler Houses, Ralph Gunderson, J. Martin Redfern

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

This study is based on the computer simulation model of a solar heated broiler house in four locations in Arkansas. This simulation model estimated the annual energy savings in each broiler house due to the installation of a solar heating system. This paper uses present value analysis to estimate the life cycle costs of heating conventional and solar heated broiler houses in the state of Arkansas. From these calculations, the number of years required to achieve a break-even cost of heating is estimated.


Emp Analysis Of An Fm Communications Radio With A Long Wire Antenna, George H. Baker Iii, Werner J. Stark May 1978

Emp Analysis Of An Fm Communications Radio With A Long Wire Antenna, George H. Baker Iii, Werner J. Stark

George H Baker

A Norton equivalent circuit is developed for a long-wire antenna used with a VHF man-pack FM radio exposed to an incident electromagnetic pulse (EMP). The required short-circuit current and antenna impedance are computed by use of a transmission-line model for the antenna, and the computations are compared with measurements of the short-circuit current and antenna impedance. The comparison shows that the transmission-line model for the antenna is adequate for performing a vulnerability analysis of the radio. A network model is developed for a portion of the radio and is used as the load in the Norton equivalent circuit. Load currents …


Generalized Ellipsometry Based On Azimuth Measurements Alone, R. M.A. Azzam Apr 1978

Generalized Ellipsometry Based On Azimuth Measurements Alone, R. M.A. Azzam

Electrical Engineering Faculty Publications

We investigate the azimuth response function, θo = f(θi), of a linear nondepolarizing optical system S, whereθi and θo, are the azimuths (orientations) of the generally elliptic vibrations of totally polarized light at the input and output of S. We find that the azimuth response function depends on five of the six parameters that specify the normalized circular Jones matrix of the optical system. Thus the entire polarization response of an optical system can be nearly completely reconstructed from its azimuth response alone. Five input-output azimuth measurements (θik, θok), k …


Simulation Of Mechanical Rotation By Optical Rotation: Application To The Design Of A New Fourier Photopolarimeter, R. M.A. Azzam Apr 1978

Simulation Of Mechanical Rotation By Optical Rotation: Application To The Design Of A New Fourier Photopolarimeter, R. M.A. Azzam

Electrical Engineering Faculty Publications

The mechanical rotation of an optical element around the axis of a beam of polarized light can be easily simulated by using the phenomenon of optical rotation. Because optical rotation can be magnetically or electrically induced, virtually any kind of mechanical rotation can be mimicked. This interesting principle is applied to the design of a new Fourier photopolarimeter that uses an oscillating-azimuth retarder (OAR). The OAR consists of a quarter-wave plate surrounded by two ac-excited Faraday cells that produce equal and opposite sinusoidal optical rotations. Analysis of the operation of this polarimeter of no moving parts proves its ability to …


Dickey-Lincoln School Lakes, Maine, Hydro-Power Decision, October 27, 1978, James B. Longley Jan 1978

Dickey-Lincoln School Lakes, Maine, Hydro-Power Decision, October 27, 1978, James B. Longley

Dickey-Lincoln School Lakes Project

The Dickey-Lincoln School Project would consist of two earthfill structures designed to produce peaking and modest intermediate load power from the St. John River The larger of the two dams, the Dickey Dam, would be located immediately above the confluence of the Allagash and St. John Rivers. The Lincoln School Dam would also be located on the Upper St. John River, eleven miles downstream from the Dickey Dam. The Dickey Dam would have a total length of 10,600 feet and a maximum height of 335 feet. The Lincoln School Dam is considerably smaller and would be 1,600 feet long and …


Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix F: Terrestrial Ecosystem Analysis (Supplement), New England Division, United States Army Engineer Division Jan 1978

Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix F: Terrestrial Ecosystem Analysis (Supplement), New England Division, United States Army Engineer Division

Dickey-Lincoln School Lakes Project

Construction of the proposed Dickey-Lincoln School Lakes Project in Aroostook County, Maine will result in the isolation of an area of land due to the impoundment behind Dickey Dam. This land area is located between the United States - Canadian border, the Little Black River, the impoundment (elevation = 913 feet), the Big Black River, and the Shields Branch of the Big Black River, and comprises 183,768 acres of land. A previous report (ERT, 1977) determined the forest types within two miles of the impoundment but did not extend to the Canadian border. This report addresses the forest types


Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix E: Aquatic Ecosystem And Fisheries Studies (Supplement), Christoipher J. Schmitt, Dennis R. Sasseville, Normandeau Associates, Inc., New England Division, United States Army Engineer Division Jan 1978

Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix E: Aquatic Ecosystem And Fisheries Studies (Supplement), Christoipher J. Schmitt, Dennis R. Sasseville, Normandeau Associates, Inc., New England Division, United States Army Engineer Division

Dickey-Lincoln School Lakes Project

Sediment mercury concentrations higher than levels normall y considered trace or background were encountered up to 80 cm belo w the sediment-water interface in samples obtained from four oligotrophi c lakes in northern Maine . These lakes are in three different watershed s and are as far as 65 km apart . The values reported are far lower than levels reported elsewhere from contaminated sites . The distributio n and magnitude of the sediment concentrations encountered suggest long-ter m diffuse mercury inputs to the lakes from the watersheds . In addition , concentrations up to twice as high in near-surface …


Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix C: Social & Economic Assessment (Supplement 1), Pamela D. Savetsky, New England Division, United States Army Engineer Division Jan 1978

Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix C: Social & Economic Assessment (Supplement 1), Pamela D. Savetsky, New England Division, United States Army Engineer Division

Dickey-Lincoln School Lakes Project

A review of available literature on rural communities which have been affected by construction projects of a similar scale has been completed. This review will aid in the development of a scenario of the construction labor peak and decline effects on the Dickey-Lincoln area.


Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix J: Coordination With Other Agencies & Public Involvement (Supplement), New England Division, United States Army Corps Of Engineers Jan 1978

Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix J: Coordination With Other Agencies & Public Involvement (Supplement), New England Division, United States Army Corps Of Engineers

Dickey-Lincoln School Lakes Project

This agency will be particularly concerned about any impact which this project might have on any existing, proposed or known units of the National Park System, or any known historic, natural or environmental education sites which are currently part of , or eligible for, the National Landmark Program. This report is a planning aid for the proposed Dickey-Lincoln Dams and Reservoirs project in Maine. A number of endangered, rare, or unique animal species are known or suspected to occur in the project area.


Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix A, United States Department Of Energy Jan 1978

Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix A, United States Department Of Energy

Dickey-Lincoln School Lakes Project

The U.S. Departments of the Interior and Energy have conducted system planning, location, and environmental studies for the trans-mission facilities required for the Dickey-Lincoln School Hydroelectric Project. These studies of many alternate routes have resulted in iden-tification of a proposed transmission line route, and an environmental impact statement, as required by the National Environmental Policy Act of 1969. This report, documenting an early phase of the overall studies, was first published by the Department of the Interior in February 1977. It is being republished as Appendix A to the DOE Environmental Impact Statement for the project.


Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix H: Socio-Economic Impact Study, Edward C. Jordan Co., Inc., United States Department Of Energy Jan 1978

Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix H: Socio-Economic Impact Study, Edward C. Jordan Co., Inc., United States Department Of Energy

Dickey-Lincoln School Lakes Project

The principal objective of this study is to identify the major types and intensity of social and economic impacts anticipated with the proposed pre-construction, construction, operation and maintenance of the Dickey-Lincoln transmission line. In order to address the types of anticipated impacts it was necessary to first develop a socio-economic profile of the affected area.


Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix D: Transmission Reconnaissance Study, U.S. Department Of The Interior, U.S. Department Of Energy Jan 1978

Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix D: Transmission Reconnaissance Study, U.S. Department Of The Interior, U.S. Department Of Energy

Dickey-Lincoln School Lakes Project

This report (Transmission Reconnaissance Studies) discusses alternative transmission facilities needed to connect the project with the New England grid, and describes the study area involved. It supplements the Transmission System PI anning Study prepared by the Department of Interior (DOI) (February 1977) and the Assessment of Alternative Power Transmission Corridors prepared by VTN Consolidated (VTN) of Boston Mass., for the Dickey-Lincoln School Lakes project.


Revised Draft Impact Statement Issued For Dickey-Lincoln, New England Division, United States Army Engineer Division, United States Army Corps Of Engineers Jan 1978

Revised Draft Impact Statement Issued For Dickey-Lincoln, New England Division, United States Army Engineer Division, United States Army Corps Of Engineers

Dickey-Lincoln School Lakes Project

Revised draft combines data previously published in two separate impact statements prepared by the corps relating to the dams, reservoirs and power plants and by the U. S. Department of Energy for transmission facilities to link the St. John River development to the New England power grid. The latter agency is responsible for the marketing and distribution of power generated at federally-financed installations.


Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix F: Geotechnical Impact Study, Jordan Gorrill Associates, Edward C. Jordan Co., Inc., United States Department Of Energy Jan 1978

Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix F: Geotechnical Impact Study, Jordan Gorrill Associates, Edward C. Jordan Co., Inc., United States Department Of Energy

Dickey-Lincoln School Lakes Project

The U.S. Departments of the Interior and Energy have conducted system planning, location, and environmental studies for the trans-mission facilities required for the Dickey-Lincoln School Hydroelectric project. These studies of many alternate routes have resulted in iden-tification of a proposed transmission line route and an environmental impact statement, as required by the National Environmental Policy Act of 1969. This report, one of several prepared under contract to the DOE by various consultants, is published as an appendix to that statement. Appendix F, Geotechnical Impact Study (two volumes, the second being a map volume), documents a study performed by E. C. …


Alternative Power Transmission Corridors. Map Volume., United States. Department Of Energy Jan 1978

Alternative Power Transmission Corridors. Map Volume., United States. Department Of Energy

Dickey-Lincoln School Lakes Project

Source data for base map taken from US Geological Survey Topographic Maps. 1:250.000 scale series. Horizontal and vertical control depicted herein is relative to the U S.G S source maps.


Revised Draft Impact Statement Issued For Dickey-Lincoln, New England Division, United States Army Corps Of Engineers Jan 1978

Revised Draft Impact Statement Issued For Dickey-Lincoln, New England Division, United States Army Corps Of Engineers

Dickey-Lincoln School Lakes Project

The revised draft combines data previously published in two separate impact statements prepared by the Corps relating to the dams, reservoirs and Power Plants and by the U. S. Department of Energy for transmission facilities to link the St. John River development to the New England power grid.


Geotechnical Impact Study. Map Volume, United States Department Of Energy Jan 1978

Geotechnical Impact Study. Map Volume, United States Department Of Energy

Dickey-Lincoln School Lakes Project

Surficial Deposits Legend Maps of Dickey/Lincoln School lakes Transmission - E.I.S.Project, Environmental Assessment of Alternative Routs, Geotechnical Study, United States Department of the Interior.


Draft Environmental Impact Statement : Dickey-Lincoln School Lakes Transmission Project, United States Department Of Energy Jan 1978

Draft Environmental Impact Statement : Dickey-Lincoln School Lakes Transmission Project, United States Department Of Energy

Dickey-Lincoln School Lakes Project

This draft environmental impact statement (EIS) will describe the environmental impacts of transmission plans of the Department of Energy (DOE) for the proposed Dickey-Lincoln School Lakes Project. Electric power produced by the project is to be integrated into the New England electric system if the project is constructed.


Ecological Resources Impact Study. Map Volume, United States. Department Of Energy Jan 1978

Ecological Resources Impact Study. Map Volume, United States. Department Of Energy

Dickey-Lincoln School Lakes Project

Environmental Assessment of Alternative Routes, Ecological Resources Impact Study, Maps and Legend land cover types


Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix J: Historical-Archeological Impact Study, Albert A. Dekin Jr., Bruce R. Donaldson, J. Lloyd Pepper, Paul A. Robinson, Edward A. Hession, Judith A. Rasson, Public Archaeology Facility Department Of Anthropology, United States Department Of Energy Jan 1978

Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix J: Historical-Archeological Impact Study, Albert A. Dekin Jr., Bruce R. Donaldson, J. Lloyd Pepper, Paul A. Robinson, Edward A. Hession, Judith A. Rasson, Public Archaeology Facility Department Of Anthropology, United States Department Of Energy

Dickey-Lincoln School Lakes Project

The report assessing cultural resources for the Dickey/Lincoln School Transmission Project consists of five narrative chapters, a topical bibliography, and five appendices. The scope of work, together with the USDI guidelines for cultural resource survey (included in Appendix E), comprise an attitude and approach toward prehistory which is in accord with the current state of the art, not simply in terms of cultural resource management but also in terms of contemporary standards generally recognized by practitioners of anthropological archaeology.


Land Use Impact Study. Map Volume, United States. Department Of Energy Jan 1978

Land Use Impact Study. Map Volume, United States. Department Of Energy

Dickey-Lincoln School Lakes Project

Environmental Assessment of Alternative Routes, Land Use Study, Maps, Existing land use


Visual-Recreation Resources Impact Study. Map Volume, United States. Department Of Energy Jan 1978

Visual-Recreation Resources Impact Study. Map Volume, United States. Department Of Energy

Dickey-Lincoln School Lakes Project

Environmental Assessment of Alternative Routes, Visual/Recreational Resources Impact Studies, Maps of Recreational Resources


Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix B: Alternative Power Transmission Corridors, United States Department Of Energy, United States Department Of The Interior Jan 1978

Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix B: Alternative Power Transmission Corridors, United States Department Of Energy, United States Department Of The Interior

Dickey-Lincoln School Lakes Project

This report identifies alternative corridors of land within which transmission lines could be routed and details various impacts on the environment which would be associated with introduction of transmission facilities. Many alternative corridor locations were identified (see Figure 1-1). Identification of these alternative transmission corridors was a complex process, since the number of potential corridors capable of connecting the various substations was myriad; the 'least desirable' potential corridors, i.e., those where transmission facilities might have entailed severest impacts on the environment, had to be eliminated from consideration before alternative corridors could be delineated. Identified alternative corridor locations were subsequently evaluated …


Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix I: Visual-Recreation Resources Impact Study, United States Department Of Energy Jan 1978

Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix I: Visual-Recreation Resources Impact Study, United States Department Of Energy

Dickey-Lincoln School Lakes Project

The U.S. Departments of the Interior and Energy have conducted system planning, location, and environmental studies for the transmission facilities required for the Dickey-Lincoln School Hydroelectric Project. These studies of many alternate routes have resulted in identification of a proposed transmission line route, and an environmental impact statement as required by the National Environmental Policy Act of 1969. This report, one of several covering various topical areas, is published as an appendix to that statement.


Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix E: Ecological Resources Impact Study, United States Department Of Energy, Dickey-Lincoln School Lakes Project Jan 1978

Dickey-Lincoln School Lakes Project Transmission Studies Environmental Impact Statement: Appendix E: Ecological Resources Impact Study, United States Department Of Energy, Dickey-Lincoln School Lakes Project

Dickey-Lincoln School Lakes Project

The responsibility for marketing federally generated power (under provisions of the Flood Control Act of 1944) was transferred from the Department of the Interior to the newly formed Department of Energy. The power transmission portions of the Dickey- Lincoln School Lakes Project were included in that transfer. The U.S. Department of the Interior and Energy have conducted system planning, location, and environmental studies for the transmission facilities required for the Dickey-Lincoln School Hydroelectric Project. These studies of many alternate routes have resulted in identification of a proposed transmission line route and an environmental impact statement, as required by the National …


Algorithms For The Solution Of Systems Of Coupled Second-Order Ordinary Differential Equations, Brendan O'Shea Jan 1978

Algorithms For The Solution Of Systems Of Coupled Second-Order Ordinary Differential Equations, Brendan O'Shea

Articles

Several step-by-step methods for the computer solution systems of coupled second-order ordinary differential equations, are examined from the point of view of efficiency “time-wise” and “storage-wise”. Particular reference is made to a system arising in the close-coupling approximation of the Schroedinger equation. The stability of the solution is also considered.