Digital Commons Network^™

Foundation Performance Of Very Old Structures, S. C. Handa

International Conference on Case Histories in Geotechnical Engineering

Withstanding the agents of destruction for several centuries, some of the structures in this world, exist as a testimony to the sound and perfected techniques of construction used in years that belong to the bygone past. Among the most famous are Taj Mahal and Qutb Minar, still standing in a magnificent and sound condition. One of the wonders of the world, Taj Mahal though built in seventeenth century still looks so fresh that the super-structure performance also speaks of the adequate and perfect foundation that must have been built for it. This paper deals with subsoil conditions at site, the …

Monitoring And Performance Of A Bridge Abutment, G. Y. Felio, G. R. Bauer

International Conference on Case Histories in Geotechnical Engineering

The performance of a bridge abutment founded on spread footings was monitored. The construction sequence, the instrumentation and the results of the bridge behaviour over several years is discussed.

Acuta Enews May 1984, Vol. 13, No. 5

ACUTA Newsletters

In This Issue

President's Message

Party Line

BOCs Revamp Centrex Service To Vie With PBXs

Communications Gear Showcased For L.A. Olympics

AT&T: A Period of Adjustment

Lincoln Tel Tackles First Light guide Job

Court: Cops Can Tape Cordless Talk

Division-Of-Wave-Front Polarizing Beam Splitter And Half-Shade Device Using Dielectric Thin Film On Dielectric Substrate, R. M.A. Azzam

Electrical Engineering Faculty Publications

No abstract provided.

Improvement Of Deep Tubewell Irrigation Project Performance In Bangladesh, Md. Mirjahan Miah

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A computer model for use in predicting the impact of various improvement options on command area expansion of a deep tubewell irrigation system has been developed. A field study was conducted on 11 selected deep tubewells located at two sites, namely Dhamrai and Thakurgaon, in Bangladesh to collect necessary physical data to provide irrigation engineering insight and a basis for testing and application of the model. The results of the investigation revealed that the actual discharge of most of the deep tubewells was lower than the design or rated capacity. The duration of pump operation in the majority of the …

Hiring Practices For Skilled Craftsmen In The Construction Industry, Jimmy A. Off

Graduate Research Papers

The building construction industry experiences wild fluctuations in demand. Additionally, the industry is characterized by a competitive bid structure. A high labor turnover rate is the natural consequence of these conditions. Compounding this problem is the building industry's highly labor intensive nature. Since contractors will perform the hiring process so frequently, their procedures must be able to identify the best qualified applicants.

The current economic recession has brought many construction firms to a point of near idleness. The unemployment rate among skilled craftsmen is high. This has created a buyer's market in which the contractors can choose the most qualified …

Center For Science And Engineering Schedule Of Classes Spring-Summer 1984, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Block Transform Coding Of Presample Filtered Data, Thomas A. Shull

Electrical & Computer Engineering Theses & Dissertations

This dissertation addresses the application of non-adaptive transform coding for bit rate reduction of presampled filtered data. Transform coding is examined as an alternative to conventional pulse code modulation (PCM) for multi-source, fixed rate data acquisition systems. Typical bandlimiting presample filters introduce redundancy into the sequence of data samples. Linear transformation of successive N-length blocks of the data sequence and subsequent binary coding of the resulting components is shown to lead to reduced average bit rate for the same less distortion as PCM.

Four Butterworth filters, two corresponding to eight bit PCM systems, and two corresponding to ten bit PCM …

The Development Of A Microprocessor Controlled Linearly Actuated Valve Assembly, Raymond H. Wall

Mechanical & Aerospace Engineering Theses & Dissertations

The development of a proportional fluid control valve/assembly is presented. This electro-mechanical system is needed for space applications to replace the current proportional flow controllers that use bulky hydraulic or pneumatic actuation systems. The flow is controlled by a microprocessor system that monitors the control parameters of upstream pressure and requested volumetric flow rate. The microprocessor achieves the ·proper valve stem displacement by means of a digital linear actuator. A linear displacement sensor is used to measure the valve stem position. 'Ibis displacement is monitored by the microprocessor system as a feedback signal to close the control loop. With an …

Acuta Enews March & April 1984, Vol. 13, No. 3 & 4

ACUTA Newsletters

In This Issue

President's Message

Party Line

Bits & Pieces

Telpak May Be Dead, But Closer Look Shows a Better Deal Ahead

Metro Tel lntroduces Quick Call 2000 For "intelligent" Speed Dialing And LCR

If A Client Orders Whiskey and Beef At Lunch, lt May Be A Power Move

Illegal Telephone Calls Hit Total Of $350,000

Acuta Enews February 1984, Vol. 13, No. 2

ACUTA Newsletters

In This Issue

President's Message

Bits & Pieces

Corporation Managers of Telecommunication Find Job Gets Tougher

It's Rush Hour For "Telecommuting"

Cutting The Cord Of Office Bell Ringers

Computer Graphics In Pressworking Of Sheetmetal, Manisekaran Muthu

Theses

This thesis deals with how computer graphics can be applied to the pressworking of sheetmetal. Blanking, bending and cup drawing are the major pressworking operations. A computer graphics package was developed with the aid of the Tektronix 4051 computer. This package would help the designer of pressworking operations. All the programs were written in BASIC computer programming language.

The programs written for the stock layout display the various stock layouts for circular, rectangular, square, triangular shaped components or any irregular shaped component on the computer screen. Each stock layout displays important parameters such as material utilization percentage, width of stock …

Acuta Enews January 1984, Vol. 13, No. 1

ACUTA Newsletters

In This Issue

President's Message

Colorado State University

Potpourri

Resale of Telephone Service to Students

Telecom Managers Need to Check Impact of Post-Divestiture Changes on Networks

Conclusion Five

Bits N' Pieces

Proposal For A Digital Pseudorandom Number Generator, C. Downey

Articles

A digital hardware implementation of a linear congruential sequence generator using shift and add techniques of multiplication is described. The sequence is of long period, low serial correlation and is rectangularly distributed. The method has certain advantages over conventional feedback shift register techniques.

Non-Iterative Finite Impulse Response Design Techniques, Carlton D. Bishop

Retrospective Theses and Dissertations

A general, non-iterative design technique for low shapefactor, transversal filters is presented. This design approach uses two cosine series to specify appropriate eigenfunctions. An infinite set of such eigenfunctions are defined and the method for choosing the coefficients is discussed.

The total filter response is specified as the product of two individual frequency responses. The impulse response of each is then determined by applying the superposition of appropriate eigenfunctions. The criteria for choosing the appropriate eigenfunctions is discussed.

A synthesis procedure for designing surface acoustic wave filters is presented. The effects of truncating the impulse response are also explored. A …

The Frequency Response Computation Of H(Z) Models That Include Digital Error Effects, Carol R. Smith

Retrospective Theses and Dissertations

Pulse responses are not suitable for evaluating H(z) frequency responses that include digital errors. Digital error effects, however, are conveniently included in H(z) frequency response calculations based on the step response. A non-real time algorithm for computing the frequency response of a real time digital filters based on the filter step response is developed and verified through an example.

A 'User-Friendly' Robot Operator Training Aid, Donald A. Washburn

Retrospective Theses and Dissertations

There will be an increasing demand for robot operators, since more companies are using robots in production and material handling. In order to train these would-be operators, a 'user-friendly' robot operator training aid was developed. This aid helps the trainee learn how to program a robot using on-line programming, and the trainee also obtains valuable hands-on experience. Since this training aid is user-friendly and has safety features, it requires little or no previous experience with robots or computers and minimal supervision. With this training, the would-be operators will acquire a basic understanding of how they can apply this experience to …

Investigation And Evaluation Of Random Number Generators For Digital Implementation, Ylberto V. Ruiz

Retrospective Theses and Dissertations

The continuous improvement in the speed of digital components in conjunction with reduction of size has brought about a revolutionary age of microprocessors. Mathematical functions, which at one time could only be implemented by complex analog circuitry, can now be easily implemented via microprocessors and high density digital components. Principles of random number generation must be understood in order to implement pseudo-random algorithms in a digital random frequency generator (DRFG) design. Chapter 1 is a discussion of several types of random number algorithms which have been used in the past and outlines the deficiencies and advantages associated with each individual …

Computer Simulation Of Cross Correlators For Correlated Inputs, Linda J. Coulter

Retrospective Theses and Dissertations

Cross correlator systems, analog and clipped input channels, with correlated random narrow band Gaussian noise as inputs are computer simulated. The performance of each system is evaluated on the basis of the output signal-to-noise ratio. The output SNR of each system is compared with theoretical asymptotic approximations computed as a function of the SNR of the input channels. The output of the simulation compares within 3 dB of the asymptotic approximations for the analog correlator for all values of the correlation coefficient tested and for the systems with clipped input channels with uncorrelated inputs. For the systems with clipped input …

The Use Of Computers In Construction Management, Joella S. Francois

Retrospective Theses and Dissertations

A study on the use of computers for the management of construction projects has been conducted. The findings of this study will be presented here and will consist of: 1. An examination of the different utilization of computers in the field of construction management. 2. An analysis of the methodology of some well known computer software packages used by many construction companies. 3. A complete documentation of computer codes that have been developed a. to illustrate the use of computer graphics for an effective utilization of some construction management techniques such as the bar chart b. to solve the problem …

Pilot Study Of Applicability Of A Generic Microprocessor Assembly Language, Joseph H. Bartlett

Retrospective Theses and Dissertations

The purpose of this investigation is to research the utility of a standardized generic microprocessor assembly language. More precisely, use of a generic language implementation on a given microprocessor and its effect on programmer productivity will be investigated. Programmer productivity will be scored in terms of an inverse function of the time taken to complete a programming task correctly. Shorter times imply better programmer productivity and longer times imply the opposite

The Development Of An Automated Production System, Brian M. Cardinal

Retrospective Theses and Dissertations

This paper describes the development of an automated production system recently completed by the Martin Marietta Aerospace Division, Orlando, Florida, for the assembly, inspection and test of printed circuit boards. The project began in January 1981 with the purpose of increasing the then existing production capability and to create the building block for the total automation of the printed circuit board assembly area of the plant in Ocala, Florida. The system was implemented using a combination of off the shelf equipment modified and integrated to create a single production system. The system employs much of the new production philosophies tailored …

The Design Of Standard Cell Vlsi Circuits, Randolph L. Abidin

Retrospective Theses and Dissertations

There are basically three methods of designing Very Large Scale Integrated (VLSI) circuits; Gate Array, Standard Cell, and Full Custom. The objective of this research is to design a VLSI circuit using the Standard Cell approach. A prime requisite for a successful design of these circuits is an integrated Computer Aided Design (CAD) system. The chip design requirements for an integrated CAD system are developed and their interrelationships are presented. As VLSI circuits grow in complexity, the problem of how to test them becomes more difficult. Two methods for testing are defined: 1. Insertion within the system of which the …

Surface Acoustic Wave Bidirectional Filter Synthesis And Analysis, Raymond L. Yap

Retrospective Theses and Dissertations

Surface Acoustic Wave (SAW) devices are manufactured using standard metallization and photolithographic techniques that have been established by the semiconductor industry. The facilities in the newly developed Microelectronics laboratory at the University of Central Florida will be utilized in the fabrication of a SAW device.

This thesis will outline the complete procedure beginning with the initial design from given specifications, up to mask generation, fabricating and testing of the device. This will serve to calibrate the fabrication process for future work in SAW device and semiconductor fabrication.

The models that are used in the SAWCAD design software will be verified …

The Design Of A Qpsk Modem And The Probability Of Error Analysis For An Sca Based Digital Communication System, Fouad Guediri

Retrospective Theses and Dissertations

An analysis of the probability of error for an SCA based digital communication system is developed. QPSK modulation and the signal to noise ratio degradation due to the SCA transmission are analyzed to predict the performance of the system in terms of probability of error. The design and analysis of a QPSK model, a pseudorandom generator, and a pseudorandom correlator are also presented in this thesis.

University Of Texas At Tyler Catalog, 1984-1986, University Of Texas At Tyler

Catalogs

This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s).

Approximate Tolerance Limits And Confidence Limits On Reliability For The Gamma Distribution, Lee J. Bain, Max Engelhardt, Wei Kei Shiue

Mathematics and Statistics Faculty Research & Creative Works

No abstract provided.

Analog Flight Simulators To Computer Interface, William J. Selph

Retrospective Theses and Dissertations

The College of Engineering at the University of Central Florida has a flight simulator. This simulator was built as a stand-alone Instrument Flight Rules (IFR) training aid. The college has attempted on several occasions to augment this simulator system with a visual (out the cockpit view) simulation for the trainee pilot. Funding and resources have restricted or limited these enhancements to non real-time simulation. This project/thesis provides the university with part of the solution to accurate real time simulation. The simulated aircraft position and direction is acquired at 9 to 40 Hertz with 10-bit resolution. This data is made available …

Master Of Science In Computer Science, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Master Of Science In Computer Science Catalog, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.