Digital Commons Network^™

The Theory And Application Of Frequency Domain Deconvolution Using Optimum Compensation In Time Domain Measurement, Robert Bruce Stafford

Retrospective Theses and Dissertations

This thesis describes a method of transforming a deconvolution problem into an equivalent convolution problem. A short discussion of the theory behind convolution and deconvolution is included, along with a survey of techniques now being used. A new method using a synthesized compensator is proposed and mathematically developed. Finally, the results of applying this method to several real and analytical signals are given.

A Feasibility Study Of Computer Aided Coding Of Ground Operations Aerospace Language (Goal), Harvey Glenn Lanier

Retrospective Theses and Dissertations

The introduction of a new checkout language at Kennedy Space Center has required more effort to create test and operations software than anticipated. The new language is called GOAL, for Ground Operations Aerospace Language. The feasibility of a computer aided GOAL coding system that would reduce the effort required to create GOAL programs is investigated in this report. A background of GOAL, its coding requirements, and the facilities used at present for GOAL coding is presented first. Next, the computer aided GOAL coding concept is presented, and requirements for such a system are developed. After the requirements are presented, a …

Simulation Model To Evaluate Performance Of Operational Systems And Their Impact On Repair Shop Activity At A Navy Field Site, James T. Newell

Retrospective Theses and Dissertations

This paper presents the background and procedures leading to development of a simulation model to analyze the impact of certain decision variables on operational system performance and workloads as the repair facility of a typical Navy field site. The research examines the impact of maintenance support concepts, as implemented by changes in the decision variables, associated with the broader application of Automatic Test Equipment. The initial effort consisted of data collection and field site surveys which culminated in defining a work flow model illustrating typical repair facility operations. The work flow model is translated into a computer simulation model. The …

The Development Of New Filter Functions Based Upon Solutions To Special Cases Of The Sturm-Liouville Equation, Stephen Joseph Chapman

Retrospective Theses and Dissertations

Two common classes of filter functions in use today, Butterworth functions and Chebyshev functions, are based upon solutions to special cases of the Sturm-Liouville equation. Here, solutions to several other special cases of the Sturm-Liouville equation were used to develop filter functions, and the properties of the resulting filters were examined. The following functions were explored: Chebyshev functions of the second kind, untraspherical functions of the second and third kinds, Hermite functions, and Legendre functions. Filter functions were developed for each of the first five polynomials in each series of functions, and magnitude and phase responses were tabulated and plotted. …

Ecological Responses Of Lake Eola To Urban Runoff, Harvey H. Harper Iii

Retrospective Theses and Dissertations

Lake Eola is a land-locked lake located in downtown Orlando, Florida. Its surface area is approximately 27.0 acres (11.0 Ha) and water depth is 2 to 3 feet (0.6 to 0.9 meters) near the shore and 22 feet (6.7 meters) toward the center. Periodical water samples were collected from the lake and storm drains for various stormwater events and physiochemical parameters were analyzed to calculated loading rates from nutrients and heavy metals released to Lake Eola. Algal bioassay studies were performed to investigate stormwater impacts on productivity. Periodical water samples were collected from the lake mixed and filtered for limiting …

Bipolar Bit Slice Microprocessors, Mack Duggan Cooley

Retrospective Theses and Dissertations

The purpose of this paper is to undertake a survey of state of the art high speed bipolar bit slice microprocessor elements. Three systems are discussed: The 2900 microprocessor family; the 10800 microprocessor family and the 8X02 microcontroller. A description of the microprocessor and microprogram controller elements for each family is presented and an example of the 2900 family is discussed.

Reliability Analysis Of Emergency Telephone System Models, Thomas J. Hobbs

Retrospective Theses and Dissertations

Several alternate systems for use in implementing the 911 emergency system in Orange County, Florida were investigated. The proposed systems were compared with the already existing systems on the basis of reliability, response time, and cost. System reliability was the prime consideration of the study. Flow charts of each system were formulated in order to determine the functions required of equipment and humans. The reliability was then determined by examining the difficulty of the tasks that each was required to perform. Reliability models of the present and proposed systems were constructed. By examining these models and comparing the reliabilities, response …

A Microcomputer Implementation Of Real Time, Continuously Programmable Digital Filters, William Edward Storma

Retrospective Theses and Dissertations

When a filter transfer function in s is replaced with the bilinear transform in z, the resulting discrete model represents the original continuous model within a second order accuracy of integration. A unique set of recently discovered minimum memory algorithms that perform the bilinear transform on a continuous transfer function are implemented on an INTEL 8080 microprocessor system. Scaling techniques are used to frequency scale all transfer functions to a standardized frequency. All data words are represented in a signed binary double precision format to maintain higher calculation speed and accuracy. Three test case transfer functions of different order are …

Cracking In Concrete Pavement, Robert C. Deen, James H. Havens, Assaf S. Rahal, Wm. Vernon Azevedo

Kentucky Transportation Center Research Report

Cracking of portland cement concrete pavements is a common, even expected, occurrence. To minimize potentially detrimental effects, it is necessary to understand mechanisms that might be used to explain such behavior so that measures may be developed and implemented to control the occurrence of such cracking. Several "theories" are discussed that might provide the mechanisms of pavement cracking. An alternate meachanism, based on fatigue loading of the concrete by temperature expansions-contrations, for the development of so-called D-cracking is offered.

Truck Design And Usage And Highway Pavement Performance, Robert C. Deen, Herbert F. Southgate

Kentucky Transportation Center Research Report

When the term highway pavement is used, most people think of the moderate to thick systems on which their vehicles travel on intermediate- or high-type roadways. These pavement systems are typically constructed of bituminous concrete or portland cement concrete. This is not to say that low-volume roads do not have a pavement system; however, in case of low-volume roads, the pavement system usually consists of unbound aggregates, sod, soil materials, or at the most very thin or moderate applications of a binding material. It is the high-type pavement systems to which the comments in this paper will be addressed specifically. …

Irish H & V News

Building Services Engineering

No abstract provided.

Ethylene Process Optimization. Constraint Relaxation And Bounds Adjustment, Kenneth R. Jinkerson, James L. Gaddy

Chemical and Biochemical Engineering Faculty Research & Creative Works

Heavily constrained, mixed integer optimization problems present a difficult test for optimization algorithms. This paper examines optimization of the ethylene process (from ethane) using a flowsheet simulation model and the adaptive random search. Optimization resulted in an improvement in annual earnings of $1.15 MM over the usual ethylene process design. This process has both continuous and discrete variables and has sensitive implicit constraints in the pyrolysis furnace. The search efficiency was found to be improved by relaxing these constraints early in the search and then restoring the constraints as the optimum is approached. The search efficiency was also improved by …

Test 1326: Ford 1900 Diesel 12-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Test 1325: Ford 1700 Diesel 12-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Calculation Of The Singularity Expanision Method Parameters From The Transient Response Of A Thin Wire, Kah-Song Cho

Electrical and Computer Engineering ETDs

The problem of determining the singularity expansion method (SEM) parameters from transient thin-wire data is exam­ined. A computer code is used to generate response data. The SEM parameters are computed from these data. For noisy data, it is shown that the parameter values can be improved by signal averaging.

Test 1324: John Deere 8640 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Test 1323: John Deere 8440 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

A Pressure Injection Device For Inoculation Of Maize With Bacterial Phytopathogens, Randall R. Carlson, A. K. Vidaver, David S. Wysong, J. H. Riesselman

Biological Process Development Facility: Staff Publications

A pressure injection device (PID) was used to inoculate maize (Zea mays) with bacterial phytopathogens. The PID was evaluated for its speed, effectiveness, and precision relative to the needle-eye method of inoculation. Corynebacterium nebraskense, Erwinia stewartii, and Pseudomonas andropogonis were each used successfully as inocula to infect maize and produce symptoms typical of Goss's wilt, Stewart's wilt and bacterial stripe, respectively. Quantitative inoculation with the PID was faster and as statistically precise as using a calibrated needle-eye.

The Feasibility Of Change-Of-Use Of Selected State Administered Lands In Utah, Eugene K. Israelsen, Lynn H. Davis

Reports

Many acres of the state come under the jurisdiction of the State Government and are managed by the appropriate department of state government. The Division of State Lands, Department of Natural Resources of the State of Utah is responsible for the management of much of the state owned land. The Division of State Lands leases the lands to various users. Revenues from the leases are used for the support of state administered program such as education. The Division of State Lands desires to manage these lands as efficiently as possible and maximize the rents and thus increase the revenues available …

Water And Land Use Planning For Some State Lands Near Moab, Utah, Eugene K. Israelsen, Lynn H. Davis

Reports

In an attempt to apply better management principles to the control of state lands, the Division of State Lands asked for the study of two questions concerning state administered lands near Moab, Utah. The first question deals with the Moab and Spanish Valleys while the second question applies to Castle Valley some 10 miles northeast of Moab. The Mill Creek Development Project is proposed to provide additional water for agriculture and M & I use in the Moab and Spanish Valleys. The question for consideration is, "How much water from the Mill Creek Development Project Reservoir should the Division of …

Acuta Enews September 1979, Vol. 8, No. 9

ACUTA Newsletters

In This Issue

PRESIDENT'S MESSAGE

PARTY LINE

BILLS & PIECES

POTPOURRI

VIRGINIA VIEW

Obtaining, Seasoning & Burning Wood: Part One In A Series On Wood As A Fuel Source, Kathy Collier, Larry W. Turner

Agricultural Engineering Energy Series

Heating with wood has become increasingly popular in Kentucky because firewood is a renewable energy source which, when used properly, is relatively clean, efficient and safe. A wood heating system can reduce fuel costs, supplement other heating sources and provide aesthetic appeal.

Stoves, Furnaces & Fireplaces: Part Two In A Series On Wood As A Fuel Source, Kathy Collier, Larry W. Turner

Agricultural Engineering Energy Series

As the costs of all types of fossil fuels increase, more and more attention is being focused upon the role that wood may play in the heating of homes. Many people want to learn more about how to prepare firewood, how to choose and operate a wood heater, and the possible problems related to home heating with wood.

Installation & Operation Of Wood Heating Systems: Part Three In A Series On Wood As A Fuel Source, Larry W. Turner, Kathy Collier

Agricultural Engineering Energy Series

The installation and operation of wood heating units are both very important factors in the safe, efficient use of wood as a heating fuel. There are several considerations which should be taken into account when wood is used, that are not involved in common oil, gas, or electric systems. These include obtaining the wood; loading, starting and tending the fire; removing ashes; and inspection and cleaning of the chimney. Placement of the unit is also important in the distribution of heat and safe operation. The following guidelines should be helpful in planning, installing, and operating your wood heating system.

Finding A Site To Store Spent Fuel In The Pacific Basin, Guna S. Selvaduray, M. Goldstein, R. N. Anderson

Faculty Publications

No abstract provided.

Irish H & V News

Building Services Engineering

No abstract provided.

Test 1321: Massey-Ferguson 2675 Diesel 8-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Test 1322: Massey-Ferguson 2705 Diesel 8-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Test 1320: International 3588 And 6588 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Digital Signal Processing With An Adaptive Delay Element, Delores Maria Etter

Electrical and Computer Engineering ETDs

A new element, the adaptive delay, is developed as a means for synchronizing two signals that are highly correlated. An LMS error function derived and gradient techniques are used to determine an adaptive delay algorithm. Like Widrow's adaptive filter coefficient algorithm, this adaptive delay algorithm does not explicitly utilize a priori statistics on the input signals. However, unlike the LMS error function for the adaptive filter, the LMS error function for the adaptive delay is not quadratic. Thus, the error function will be required to be unimodal in order to assure convergence of the adaptive delay to its optimum value. …