Engineering Commons^™

Pmos Operational Amplifier Evaluation, William J. Spezzano

Journal of the Microelectronic Engineering Conference

The evaluation of a metal gate PMOS op amp, including verification of the integrated circuit layout and a check of the PMOS design rules, was performed. The SPICE deck was modified to include a mask error which was discovered and the resulting simulation compared to DC measurements. The results indicate design errors at the input stage of the op amp. Open loop simulations performed by SPICE also show design errors within the gain stage. Suggestions for a more thorough investigation of the design are given.

Pmos Standard Cell Library, James C. Taylor

Journal of the Microelectronic Engineering Conference

To allow for a quicker, more efficient design process, a PMOS standard cell library has been designed. The cells designed include; NAND, AND, OR, NOR and Exclusive OR gates, Output Pad Driver, RS Flip-Flop, D-type Flip-Flop, Shift Register, Up-Down Counter, Multiplexor, Decoder, Encoder, Inverter, and a Serial Adder. These cells were all simulated using SPICE, and laid out with ten micron metal gate PMOS design rules.

300 Baud Modem Design, Brian Terwilliger

Journal of the Microelectronic Engineering Conference

The 300 bps MODEM was researched and is in the process of being designed and built. The relatively low speed of a 300 bps MODEM allows for an asynchronous design therefore eliminating much of the timing control necessary at higher speeds. The result is a low speed functional MODEM.

Sem Studies In Microelectronics, Renee Vitullo

Journal of the Microelectronic Engineering Conference

A review of the Scanning Electron Microscope (SEM) is presented with attention given to its applications in the field of Microelectronics.

A Study Of Optical Waveguides, James Weaver

Journal of the Microelectronic Engineering Conference

A planar optical waveguide has been produced by immersion a microscope slide (sodium rich) in molten KN03. The resulting K+ profile is due to an ion-exchange with Na+. The higher atomic number of K+ increases the index of refraction at the surface and therefore allows for the propagation of light by alternate total internal reflections. Methods for observing the K+ profile and measuring the refractive index are discussed, as well as the difficulties involved/ Also, suggestions for future experiments and characterizing techniques are given.

Automated Capacitance-Voltage Measurement, Dale Webb

Journal of the Microelectronic Engineering Conference

An IBH personal computer was used es en eutorT'l8tic data equlsitlon system for obtaining capacitance voltage (CV) measurements. An HP4145 parameter analyzer was used es en analog to digital converter end the resulting digitized CV data was analyzed on the VAX mainframe.

Truth Table Test Fixture For Pmos Gate Array, William K. Wing

Journal of the Microelectronic Engineering Conference

An improved test fixture, used to evaluate the functionality of logic circuits designed using a PMOS technology based gate array, was tested and, when necessary, repaired. It was enhanced so as to allow i to accommodate two automatic probers operating at maximum capacity. An improved truth table test fixture was designed as a future replacement of the existing system.

Summer 1987, 90.9 Wmpg Fm

WMPG Program Guides

WMPG Program Guide, Summer 1987

Santa Clara Magazine, Volume 29 Number 2, Winter 1987, Santa Clara University

Santa Clara Magazine

9 - CAMPAIGN FINANCING A look at what's wrong with modern campaigns and a creative, alternative approach to financing them. By Timothy J. Lukes

13 - TRADITION SHATTERED One hundred women broke the all male tradition at SCU 25 years ago. They returned to the campus to celebrate. By Barbara Wyman

18 - PAUL AQUINO: 0 & A Paul Aquino '65 talks about his famous sister-in-law, Cory, his family, and life in the Philippines.

21 - A YEAR FOR OTHERS Seven 1986 graduates chose to spend this year with the ·Jesuit Volunteers. They talk about what it's like. By Julie …

Quinoline Sorption On Na-Montmorillonite: Contributions Of The Protonated And Neutral Species, Calvin C. Ainsworth, John M. Zachara, Ron L. Schmidt

United States Department of Energy: Publications

Dilute aqueous solutions of quinoline were contacted with Na-montmorillonite to elucidate the sorption process of the neutral and protonated species. Sorption occurs via a combination of ion exchange and molecular adsorption and yields S-type isotherms. Exchange between the quinolinium ion (QH⁺ and Na can be described by means of Vanselow selectivity coefficients and a thermodynamic exchange constant (K_ex). Due to the apparent adsorption of the neutral species at high mole fractions (x) of the solid phase, the thermodynamic standard state was defined as 0.5 mole fraction. The selectivity at pH ~4.95 of the QH⁺ species over …

Sorption Of Binary Mixtures Of Aromatic Nitrogen Heterocyclic Compounds On Subsurface Materials, John M. Zachara, Calvin C. Ainsworth, Christina E. Cowan, Berta L. Thomas

United States Department of Energy: Publications

Single and binary solute sorption of pyridine, quinoline, and acridine has been investigated on two low organic carbon subsurface materials with similar properties but different equilibrium pH when saturated with water. Single solute sorption for all compounds is higher in the acidic soil as compared to the basic soil, reflecting stronger sorption of the protonated organic cations. The protonated species exhibit high selectivity for the exchange complex at low aqueous concentration with selectivity increasing with ring number. Binary sorption experiments with quinoline/pyridine and quinoline/acridine demonstrate that competitive sorption occurs between compounds in the acidic subsoil where the protonated compound species …

Applications Of The Semiclassical Spectral Method To Nuclear, Atomic, Molecular, And Polymeric Dynamics, M. L. Koszykowski, G. A. Pfeffer, D. W. Noid

United States Department of Energy: Publications

Nonlinear dynamics plays a dominant role in a variety of important problems in chemical physics. Examples are unimolecular reactions, infrared multiphoton decomposition of molecules, the pumping process of the gamma ray laser, dissociation of vibrationally excited state-selected van der Waals’s complexes, and many other chemical and atomic processes. The present article discusses recent theoretical studies on the quasi-periodic and chaotic dynamical aspects of vibrational-rotational states of atomic, nuclear, and molecular systems using the semiclassical spectral method (SSM). We note that the coordinates, momenta, and so on, are found using classical mechanics in the studies included in this review. Consequently, certain …

Bioconcentration Of Heavy Metals (Cu, Cr, Pb, And Zn) In The Missouri River Near Sioux City, Iowa, Robert Conklin, Suzie Galles, Edward Shane, Rod Tondreau

United States Army Corps of Engineers, Omaha District

The concentrations of the heavy metals- copper, chromium, lead, zinc- in the biota of the Missouri River were measured at a control site upstream of Sioux City and at a site downstream of the city. Bioconcentration factors for each of the metals were calculated for fish, periphyton, and invertebrates, and the concentrations of metals in the river sediments were measured.

Concentrations of the same metals were measured in the sediment, water, periphyton, invertebrates, zooplankton, and fish of Snyder's Bend Lake. Bioconcentration factors were calculated for each of the biological communities and were found to be very similar to those found …

Characteristic Surfaces For Three-Position Motion Generation With Planar Four-Bar Mechanisms, Clark R. Barker, J. Baumann

Mining Engineering Faculty Research & Creative Works

This paper considers the relationship between the three-position motion generation problem and the solution space for planar four-bar mechanisms. After one half of the basic four bar had been selected, two infinities of solutions still remained. These solutions are mapped in a plane to determine where the particular types of mechanisms occur. A contour is then generated in the mapping plane which joins together all solutions which share a common characteristic in regard to their link lengths. This same contour can be displayed in the solution space and in the Cartesian plane in which the motion generation is defined. Significant …

Characteristic Surfaces For Three-Position Motion Generation With Planar Four-Bar Mechanisms., Clark R. Barker, J. Baumann

Mining Engineering Faculty Research & Creative Works

This paper considers the relationship between the three-position motion generation problem and the solution space for planar four-bar mechanisms. After one half of the basic four bar had been selected, two infinities of solutions still remained. These solutions are mapped in a plane to determine where the particular types of mechanisms occur. A contour is then generated in the mapping plane which joins together all solutions which share a common characteristic in regard to their link lengths. This same contour can be displayed in the solution space and in the Cartesian plane in which the motion generation is defined.

Electrochemical Technique For Corrosion Monitoring, Nadia Mohamed Khattab

Archived Theses and Dissertations

The present work is a study of the applicability of linear polarisation resistance technique as a means for corrosion monitoring. Parameters tested were alloy composition, surface finish of specimens before exposure, concentration of aqueous environment and the additional effect of soil to the aqueou􀀂 medium. A simple galvanostatic polarisation circuit was utilized. A polarisation resistance curve was then plotted from which the corrosion current densities and corrosion rates were calculated. The results of this work show that Corrosion reactions depend on both thermodynamic and kinetic parameters, also these reactions are under mixed control and the potential actually measured at the …

Automated Acoustic Intensity Measurements And The Effect Of Gear Tooth Profile On Noise, William J. Atherton, Adam Pintz, David G. Lewicki

Mechanical Engineering Faculty Publications

Acoustic intensity measurements were made at NASA Lewis Research Center on a spur gear test apparatus. The measurements were obtained with the Robotic Acoustic Intensity Measurement System developed by Cleveland State University. This system provided dense spatial positioning, and was calibrated against a high quality acoustic intensity system. The measured gear noise compared gearsets having two different tooth profiles. The tests evaluated the sound field of the different gears for two speeds and three loads. The experimental results showed that gear tooth profile had a major effect on measured noise. Load and speed were found to have an effect on …

Effect Of Non-Ideal Sampling On The Discrete Fourier Transforms Of An Object Function, Karen Marie Macdougall

Retrospective Theses and Dissertations

Fourier Series and Fourier Transforms can be used to determine the frequency content of a continuous signal. This paper investigates the situation where a two dimensional object function is sampled by a detector array of a finite size. Continuous Fourier analysis is not applicable to sampled data, so the Discrete Fourier Transform is used. The similarities and differences between the discrete and continuous cases are discussed and consideration is made as to how the spectrum is altered when the normal assumptions of ideal sampling and recovery are not made.

Seepage Interceptor Drains And Topsoil Salinity, T R. Negus

Journal of the Department of Agriculture, Western Australia, Series 4

The Department of Agriculture established 121 trials in its Narrogin advisory district starting in 1972 to measure the effect of bulldozer and grader built seepage interceptor banks and drains on the topsoil salinity of the land downslope of them.

After 14 years of moniterin, there was no evidence that seepage interceptor drains and banks reduced the top soil salinity on 10 of the 11 sites in the Pingelly, Brookton and Wickepin Shires.

Mogumber Drainage Works Succeed, L K. Lenane

Journal of the Department of Agriculture, Western Australia, Series 4

The loss of arable farmland from soil erosion, waterlogging and salinity is a severe problem on some Western Australian farms.

When the arable land comprises only 40 per cent of the total area within the Mogumber Soil Conservation District, this loss is a real cause for concern. So too is the resulting damage to roads, siltation of railway culverts, and deaths of roadside trees from rising saline watertables.

However, drainage, contour and other works undertaken by the Mogumber Soil Conservation District have halted this degredation. Badly eroded areas that were fenced off now have a satisfactory ground cover. A wheat …

The Implementation Of Quality Control Circle Concepts Into American Industry, John R. Hunt

Retrospective Theses and Dissertations

In light of the growing worldwide competition among industrial manufacturers as developing nations become more technologically viable, it becomes imperative that we, as a nation, become more conscious than ever of quality and productivity.

Our most serious competitors, the Japanese, have developed a nationwide sense of quality consciousness and have evolved a management and manufacturing system to achieve their goals of superior quality that is currently unrivaled.

One important element of their productive system is the concept of Quality Control (QC) circles; generally described as a problem solving group of working people, who as members of a team, identify, solve, …

Computer Simulation Of Dynamic Systems, Charles G. Smith

Retrospective Theses and Dissertations

Computer simulation of a control system is a valuable tool in design or performance evaluation. This is especially true when non-linear elements cannot be ignored and must be included within the model. A general purpose block diagram oriented simulation program will be developed which can utilize continuous, discrete and non-linear building blocks. The software tool will be demonstrated by means of an example.

Influence Of Bromide Upon Trihalomethane Formation And Speciation, Thomas J. Christ

Retrospective Theses and Dissertations

This research investigated the influence of bromide-ion concentrations upon trihalomethane (THM) formation and speciation. There is some speculation that bromide will increase the amount of THMs on a mass and/or molar basis. Previous research had indicated that bromide will affect the speciation to form the more brominated forms of THMs, but the extent of this speciation has not been clearly defined. Speciation is important when evaluating THM removal processes. The brominated species may require activated carbon for removal as opposed to air stripping for removal of the volatile species (chloroform).

To investigate the role of bromide ion, a half-fractional, factorial …

The Creation Of An Expert System For Teaching Piano Lessons, Carol Chew

Retrospective Theses and Dissertations

Combining the arts with science and technology has had many beneficial results. Computers and music have been connected for many years. Computers have been used in music composition, electronic keyboards, music publishing and digital sound processing. Artificial intelligence has been used in creating expert systems for training people in various fields. An attempt will be made to tie together expert systems for training with current computerized music technology.

This research report proposes that an expert system be developed to teach piano lessons. The fields of music and artificial intelligence will be drawn upon in developing this expert system structure. While …

Use Of A Liquid Crystal Television For Spatial Frequency Analysis Of Incoherent Scenes, Michael A. Deschenes

Retrospective Theses and Dissertations

A liquid crystal spatial light modulator (SLM) was used as a programmable reticle in an optical system. The function of the SLM system was to perform a spatial frequency analysis on an incoherent input scene, by means of successive correlations over a set of spatial basis functions. Because of physical modulator characteristics, the basis function set available from the reticle was a set of DC-biased square waves, rather than the sinusoids used in a usual Fourier analysis. This led to the “even pulse train transform” being performed on the input images. Experimental examples of this frequency analysis are given for …

Edge Direction Confidence Estimation For Improvement Of Hough Accumulation, Eric J. Grajales

Retrospective Theses and Dissertations

The Hough transform silhouette identification method requires a consistency of edge direction in the identification of similar silhouettes. Many gradient operators used in Hough preprocessing require a thresholding and a non-maxima suppression routine to aid the localization process. These routines may delete edges or cause edge fragmentation. These anomalies degrade the Hough performance due to the lack of accurate silhouette extraction, and reduce the correct localization in the Hough accumulator. Noise or sampling errors can be removed by several enhancement routines presented. They are mean, median, symmetric nearest neighbor, hi pass, and low pass filters.

An edge detection process is …

Implementation Of Inversion Algorithms In Reconfigurable Systolic Arrays, Haritini E. Andre

Retrospective Theses and Dissertations

Reducing the computing time of the matrix inversion has been a concern of many authors. The use of Systolic architectures containing orthogonally connected processing elements capable of few instructions multiple data have allowed for new algorithms to be implemented. Two algorithms are examined that rely on the triangularization methods for matrix inversion. One can be applied to the general non-singular matrix and the other to the symmetric matrix. The throughput in both implementation is revolutionized. The speed improvement over Liu and Young’s implementation of the symmetric matrix inversion is by a factor of three.

The throughput in both implementation is …

Implementation Of A 35 Ghz Microstrip Antenna System, Rachel S. Albritton

Retrospective Theses and Dissertations

Millimeter waves, corresponding to the frequency range 30 to 300 GHz, have characteristics which make them ideal for many applications. Antennas at these frequencies have the advantage of reduced size and weight and can be fabricated as an integral part of the system they are used in. Millimeter wave microstrip antennas have been extensively researched over the past decade. The purposed of this report was to build and test 35 GHz microstrip antennas as well as put into operation a high voltage klystron power supply, Micro-Now Model 756. The antennas were fabricated and tested in the lab and the results …

Intelligent Robots, Abol H. Moulavi

Retrospective Theses and Dissertations

There is an increasing need for integrating sensory feedback into the robot system. This will provide better flexibility and will improve the capacity of the robot to reason and make decisions in real time.

This report discusses the current issues related to the development and application of intelligent robots. The report surveys the essential features of an intelligent robot. These features are sensing, off-line programming, task level programming, adaptive control and knowledge representation.

Such a robot should be knowledge driven. It should "know" about objects and work plans, this knowledge should provide the capability for the robot to handle uncertainty …

A 24-Hour Rainfall Distribution And Peak Rate Factors For Use In Southwest Florida, Geoffrey S. Dendy

Retrospective Theses and Dissertations

The objectives of this research were to derive a design 24-hour duration rainfall distribution for use in southwest Florida, and peak rate factors for use in the Soil Conservation Service (SCS) unit hydrograph method for two watersheds, also in the southwest Florida area. The rainfall distribution is derived by applying a least squares polynomial curve fitting technique to National Weather Service hourly rainfall data collected in the study area. The screening criteria for data included in the curve fitting procedure are: storm duration of 18 to 26 hours, at least three inches of rainfall volume, and peak intensity period falling …