Digital Commons Network^™

1980 Census Map Index - Ocala, Florida, U.S. Department Of Commerce, Bureau Of The Census

1980 U.S. Census Block Maps Indexes

No abstract provided.

1980 Census Map Index - Orlando, Florida, U.S. Department Of Commerce, Bureau Of The Census

1980 U.S. Census Block Maps Indexes

No abstract provided.

1980 Census Map Index - Tallahassee, Florida, U.S. Department Of Commerce, Bureau Of The Census

1980 U.S. Census Block Maps Indexes

No abstract provided.

1980 Census Map Index - Tampa-St. Petersburg, Florida, U.S. Department Of Commerce, Bureau Of The Census

1980 U.S. Census Block Maps Indexes

No abstract provided.

1980 Census Map Index - West Palm Beach-Boca Raton, Florida, U.S. Department Of Commerce, Bureau Of The Census

1980 U.S. Census Block Maps Indexes

No abstract provided.

Thermosiphon System, Florida Solar Energy Center

FSEC Energy Research Center®

In a THERMOSIPHON SYSTEM, cold water from the bottom of the elevated storage tank flows to the lowest point in the system (which is the bottom of the solar collector).

As it is warmed it becomes less dense and flows up to a side port near, but not at, the top of the storage tank. If the tank is about two feet above the top of the collector, the system will not back-siphon at night. If back-siphoning were to occur, the warm water would be cooled during its passage through the dormant collector. Thermosiphoning systems have no moving parts and …

Patrick Air Force Base Branch Brevard Campus Catalogues, Rollins College

Text Materials of Central Florida

Rollins College catalogue with list of faculty and students and courses by department.

The General Purpose Interface Bus, Ernest D. Baker

Retrospective Theses and Dissertations

The General Purpose Interface Bus, as defined by the IEEE Standard, deals with systems that require digital data to be transferred between a group of instruments. An overview of this standard is presented which summarizes the interface's capabilities, functions and versatility by explaining the basic interface concepts. In addition, a GPIB testing application and a GPIB related design example are presented and investigated.

An Investigation Into The Solution Of Three Dimensional Elastostatic Problems Using The Boundary Integral Technique, David Campbell Aldrich

Retrospective Theses and Dissertations

The boundary integral technique was implemented in a computer code for the general static analysis of three dimensional elastic solids. The was based on a formulation of the problem in which the governing boundary equation is developed from the known solution to Kelvin's problem, by the application of Betti's reciprocal relationship. Modeling the boundary of the region being analyzed with plane elements and assuming the tractions and displacements constant across these elements leads to a set of simultaneous algebraic equations approximating the boundary integral equation. Numerical techniques are used in the computer code to assemble and solve this set of …

Statistical Fading Of A Plane Optical Wave In Atmospheric Turbulence, John F. O'Hara

Retrospective Theses and Dissertations

A formula for the average fade time of the intensity of a plane optical wave traveling through atmospheric turbulence is developed. The model employed involves isotropic, homogeneous statistics using a lognormal distribution for the channel. The analysis is based on the fact that the logarithm of the irradiance is normally distributed and uses the work of S. O. Rice who developed such an expression for a zero mean, Gaussian process. The analysis employs the covariance function and the Taylor frozen turbulence hypothesis which results in an expression for the autocorrelation function.

University Of Central Florida Libraries, Annual Report 1979-1980, Ucf Libraries

Libraries' Documents

No abstract provided.

Patrick Air Force Base Branch Brevard Campus Catalogues, Rollins College

Text Materials of Central Florida

Rollins College catalogue with list of faculty and students and courses by department.

Values And Interests Among Four Ethnic Groups In Mexico, Jacobo Schwartzman

Retrospective Theses and Dissertations

No abstract provided.

A Ten Kilometer Transmission System Fiber Optics Versus Ku-Band, John A. Hallmark

Retrospective Theses and Dissertations

This research paper discusses the design evaluation and selection of a transmission system to be used in checking out the Spacelab high rate data system. The transmission systems evaluated are discussed, as well as the criteria utilized in selecting the final system. The installation of a fiber optics cable and the testing of this cable are discussed. The determination of the optimum location of the high rate data bit synchronizer and Viterbi decoder is presented. Utilization of this data to justify the installation of a shorter fiber optics system inside the O&C Building is presented.

Crummer School 1980-1981, Rollins College

Text Materials of Central Florida

Rollins College catalogue with list of faculty and students and courses by department.

Patrick Air Force Base Branch Brevard Campus Catalogues, Rollins College

Text Materials of Central Florida

Rollins College catalogue with list of faculty and students and courses by department.

Patrick Air Force Base Branch Brevard Campus Catalogues, Rollins College

Text Materials of Central Florida

Rollins College catalogue with list of faculty and students and courses by department.

Rollins College: A Pictorial History, Jack C. Lane

Text Materials of Central Florida

Rollins College: A Pictorial History compiled and edited by Jack C. Lane. The book covers the college history from the late 19th century when the college was founded until the late 1970s. Part I of the book covers: "Founding a Liberal Arts College on the Southern Frontier. Part II covers: "The Holt Era: Building a Liberal Arts College. Part III covers: "After Holt: Establishing Quality in an Era of Growth. Part IV: "Rollins: A Contemporary View."

Candidate Images Among Voters And Non-Voters In 1976, William S. Maddox

Faculty Bibliography 1980s

An analysis of 1976 data indicates that nonvoters' images of presidential candidates do not differ drastically from the images expressed by voters. Nonvoters respond to fewer candidates and tend to rate some "outsider" figures more positively and "establishment" figures less positively. With regard to most candidates, however, nonvoters' perceptions resemble those of fellow partisan identifiers more than those of fellow nonvoters. Tests of candidate-related explanations of turnout provide more support for the "indifference" and "other preference" hypotheses than for alienation, but the utility of these explanations varies across partisan groupings.

Some New Worldwide Cloud-Cover Models, Steven J. Bean, Paul N. Somerville

Faculty Bibliography 1980s

No abstract provided.

Ruthenium-Catalyzed Hydrogenation Of Aqueous Sodium Bicarbonate, Duane P. Covino

Retrospective Theses and Dissertations

This research report investigated the ruthenium-catalyzed hydrogenation of aqueous sodium bicarbonate. Subjects of the investigation included: the "blank" effect of the 316 stainless steel reactor in the batch mode; the catalytic activities at 150°C for unsupported ruthenium, including ruthenium purge and the metal produced from the in situ reduction of RuCl3·1-3H2O and Ru(IV)O2·H2O; the catalytic activities at 150°C for supported ruthenium including 4.05% w/w ruthenium on alumina, 5.25 and 20.85%w/w ruthenium on molecular sieve SK-41 (ammonium - substituted Y-type), 3.34 and 17.48% w/w ruthenium on SK-41 (prepared by the in situ reduction of the RuCl3·1-3H2O exchange sieve); orders of reaction …

Cyclodimerization Of 1,3-Pentadiene With Homogeneous Nickel Catalyst, Morteza Soltani

Retrospective Theses and Dissertations

Piperylene concentrate is a complex mixture of 5-carbon unsaturated hydrocarbons obtained as by-products when naptha or gas oils are cracked. The major component in this mixture is 1,3-pentadiene. The cyclodimerization of 1,3-pentadience in piperylene concentrate by using a nickel catalyst was studied. Various types of ligands were used in the preparation of the nickel catalyst. The effect of each ligand on activity of the catalyst in dimerization of diene, on conversion, and on yield of reaction were investigated. The effect of reaction conditions, such as temperature, pressure, and reaction time, on conversion of monomer, yield of dimer, and selectivity of …

Fade Time Statistics Of Laser Light Propagating Through Turbulent Atmosphere, Madjid A. Belkerdid

Retrospective Theses and Dissertations

The average fade time of the fluctuations in the intensity of laser light propagation in the atmosphere is analyzed. Experimental results show that the average fade time for a propagation distance of 208 meters, in the weak turbulence regime, is well described by formulas developed from a Log-Normal distribution. A circuit that calculates real time statistics of fade time is designed, then validated using a sine wave input whose fade time statistics are predetermined. The experimental signal is then tested for stationarity, and the average fade time is measured. A curve fitting is then performed for the experimental data and …

Nominal Molecular Weight Distributions Of Color, Toc, Tthm, Precursors And Acid Strength In A Highly Organic Potable Water Source, Jalil Fouroozi

Retrospective Theses and Dissertations

This research investigated the relationships between molecular size and the TOC, TTHM, acid strength and color concentrations present in raw and coagulated water from Lake Washington. Three separate coagulants were utilized for investigation. There were: Al, Fe and Mg. Results indicated that the majority of the TOC, color and TTHM precursors were in the colloidal size range and removed by coagulation. The remaining TTHM precursors are mostly molecular and require a process other than coagulation for removal from the potable water before environmental standards are met.

Benthic Macroinvertebrates In A Hydrilla Infested Central Florida Lake, Stefani L. Scott

Retrospective Theses and Dissertations

Benthic macroinvertebrates and physicochemical parameters were monitored simultaneously with hydrilla in a central Florida lake. Changes in the benthos were described in relation to plant growth. Twenty-seven of the 54 taxa of benthic macroinvertebrates collected were members of the Family Chironomidae. Chironomids and oligochaetes numerically dominated the benthos, comprising of 82% of the individual collected. The greatest numbers of species and individuals were found during the winter when hydrilla biomass was low. Hydrilla biomass ranged from 0.385 kg/m2 in April, 1977 to 2.275 kg/m2 in October, 1977. Low numbers of species and individuals were collected from bottom sediments during summer …

A Comparison Of The Effects Of Age Stereotypes On The Performance Evaluations Of Two Different Jobs, Mitchell P. Siegel

Retrospective Theses and Dissertations

No abstract provided.

Design And Analysis Of An Explosive Driven Hydrodynamic Conical Shock Tube, Leonard W. Connell

Retrospective Theses and Dissertations

An explosive driven, water filled, conical shock tube was designed and evaluated regarding its ability to amplify a charge weight and to produce hydrodynamic spherical shock waves. The results show that the shock waves in the tube are essentially spherical in nature--with an initial exponential shape, peak pressure attenuation as (1/R)1.13 and the time constant spreading roughly as (R).22. The charge weight was amplified by a factor of 3600 compared to a theoretical amplification of 7770. An estimate of the energy absorbed by the breach plug (which houses the charge) during an explosion was performed. The peak pressure data taken …

Perception Of Subordinates' Job Evaluation Factors To Determine Supervisor-Subordinate Agreement, George Edward Romot

Retrospective Theses and Dissertations

No abstract provided.

A Monte Carlo Approach To Ridge Discriminant Analysis, Lee Wooldridge

Retrospective Theses and Dissertations

A combined analytical and empirical method to define human performance measures is required for effective automated training. In theory, performance measures can be weighted and combined in a single first order equation upon which an automated training system can track a student's comparative skill level. A form of multivariate discriminant analysis was the statistical technique incorporated into the measurement selection and weighting scheme. (Vreuls and Wooldridge 1977). As with regression analysis, this discriminant technique was subject to debilitating problems such as overfit and undesirable inaccuracies in the coefficients. The author developed and implemented an adjustment to the discriminant function analogous …

Florida Technological University College Of Natural Sciences Research Activities, July 1, 1979-June 30, 1980, Florida Technological University. College Of Natural Sciences

Research Activities & Annual Reports

Florida Technological University, College of Natural Sciences, research activities including funded research, non-sponsored research projects, presentations of professional papers, and publications for the year July 1, 1979-June 30, 1980.