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A Comparison Study Of Atmospheric Radiometric Calibration Methods For Aerial Thermograms, A. E. Byrnes
A Comparison Study Of Atmospheric Radiometric Calibration Methods For Aerial Thermograms, A. E. Byrnes
Theses
A comparison study was conducted to evaluate limitations of several atmospheric calibration techniques, including: Angular, Profile, and spectrally corrected and uncorrected LOWTRAN. To accomplish this, a thermal mapper was flown over a shoreline where water surface temperatures were measured coincidentally by a ground crew. The thermogram derived observed radiances were corrected using each of the atmospheric calibration methods so that ground surface temperatures could be predicted. The R.M.S. errors of these ground temperature predictions indicated that all calibration techniques yielded similar results at 1000-foot altitude. The error remained constant for the Profile and LOWTRAN calibration techniques to 6000-foot altitude, but …
Photographs 1982-1983, Barbara Bosworth
Taking My Father's Pictures, Carl Raphael Yusavitz
A Study Of The Halftone Dot Characteristics Of Rapid Access Halftones, John Gilliatt
A Study Of The Halftone Dot Characteristics Of Rapid Access Halftones, John Gilliatt
Theses
Rapid access processing is a photographic processing method that combines high temperature processing and high energy developing agents to obtain very short induction periods, and thus, reduced processing times. In order to obtain maximum quality from the process, the rapid access halftone percent dot areas must be correctly evaluated according to established aim points. Traditional evaluation methods, either visual or instrumental, produce errors. These errors are the partial result of the unique dot characteristics of the process. These characteristics include soft, fringed dots; dots with low Dmax, found particularily in the shadow areas; loss of dot area on the tips …
Chasing Daguerrean Eidothaumata, Grant Romer
The Pot As Nurturer: An Approach To Functional Pottery, Marian L. Baker
The Pot As Nurturer: An Approach To Functional Pottery, Marian L. Baker
Theses
What is meant by life in pots? Animals drawn on the sides? Arms and legs sprouting out from the clay walls? a big face on the side like those horrible mugs you see in tacky gift shops? Is it a quality in the throwing? A tiny piece of clay frozen out of place on the wall? A fat round shape that may speak of pregnancy or over-eating? Gooey slip dripping off the sides? A distorted portion: lip, foot, wall? A disoriented pot, leaning on its left foot? A drunk pot, ready to fall over? It it none of these, but …
A Constant Force Bicycle Transmission, Thomas Chase
A Constant Force Bicycle Transmission, Thomas Chase
Theses
A prototype design for a human powered automatic transmission intended for use on an ordinary touring bicycle is presented. The transmission is intended to automatically adjust the gearing of the bicycle to maintain an optimum pedal force, regardless of the current riding conditions. Therefore, the transmission eliminates the need for the cyclist to manually adjust the bicycle gearing. The entire transmission is a self-contained unit designed to bolt onto the rear wheel of an otherwise unmodified 27-inch bicycle. The transmission combines a unique adaptation of a commercially popular continuously variable traction drive with a totally mechanical integral feedback controller. The …
A Software Prototype For The Ibm Series/1 Remote Intelligent Printers, Thomas Weber
A Software Prototype For The Ibm Series/1 Remote Intelligent Printers, Thomas Weber
Theses
Over the period of December 1982 to May 1983, a software prototype to support the IBM 4975 model 01 A printer was developed. The host computer was the IBM Series/1 minicomputer. The printer controller used was the Feature Programmable Multi-Line Adapter. Both the controller and printer contain one or more microprocessors that do some processing for the Series/1. With the RS232C electrical interface, the printer has remote capabilities. The electrical interface performs data transmission that is serial, asynchronous, and full duplex. This thesis serves as an application showing how intelligent printers and controllers can be utilized effectively on the Series/1.
A Model To Predict The Reflectance From A Concrete Surface As A Function Of The Sun-Object-Image Angular Relationship, George C. Grogan
A Model To Predict The Reflectance From A Concrete Surface As A Function Of The Sun-Object-Image Angular Relationship, George C. Grogan
Theses
A study was made of the variation in the reflectance of a concrete sample as the sun-object-image angular relationship was varied. The research work was performed in the controlled conditions of a laboratory so that atmospheric effects could be neglected. Reflectance measurements were taken from a. concrete sample whose surface roughness had been measured. Both specular and diffuse illumination in the red (630 - 680nm) wavelength region of the visible spectrum were measured. A model which can be used to predict the reflectance value for a given sun-object-image angular relationship was developed. Actual reflectance measurements taken outdoors agreed to within …
Saints And Pagans, Laurence K. Daughters
Saints And Pagans, Laurence K. Daughters
Theses
In preparation for this project I have read material on Andean culture and assembled myths and legends indigenous to the region. This collection, along with research I will undertake in Quito, will eventually aid me in the presentations of my thesis. Pending financial considerations I plan to leave for Ecuador in the beginning of June and establish contacts in Quito with Ministerio de Asuntos Indigenas, sociologists, and photographers who advocate in interest in Indian culture, and Peace Corps volunteers working in the highland area. During my stay I intend to be frank and open about my objectives, offering to share …
Optical Spectrometry Via Photoelectron Spectroscopy, Marshall Clemens
Optical Spectrometry Via Photoelectron Spectroscopy, Marshall Clemens
Theses
The photoelectric effect has long been a phenomenon of great scientific and practical interest. Its application to photomultiplier and image pickup tubes has yielded a wealth of instruments. Most recently the field of photoelectron spectroscopy has developed as a tool for chemical analysis.
A Limited Comparison Of Ultraviolet Curing And Convection Drying On Paper Permanence, Nancy Bittner
A Limited Comparison Of Ultraviolet Curing And Convection Drying On Paper Permanence, Nancy Bittner
Theses
Archivists, conservators and librarians are concerned with paper permanence. Tests have shown that paper permanence is affected by light (especially ultra violet), temperature and humidity changes, acidity, in sects and rodents, and by general use. Environmental damages are often insidious. The objective of this study is to find whether ultraviolet curing and evaporative drying as experienced in the printing industry would affect paper permanence. Glen G. Gray's procedure for finding the reaction rate (the rate at which chemical reactions are completed) of paper is followed. This method relies on the fact that a chemical reaction occurs at speeds which depend …
Effect Of Plate Surface Characteristics On Image Reproduction In Electrostatic Planographic Platemaking, Sung Jae Lee
Effect Of Plate Surface Characteristics On Image Reproduction In Electrostatic Planographic Platemaking, Sung Jae Lee
Theses
Four different types of surfaces of aluminum plates; 1) brush grained, 2) chemically grained, 3) brush grained and anodized, and 4) electrochemical ly grained and anodized substrates coated with polyvinyl oxazol, an organic photoconductor were studied. The experiments were divided into two parts. The first part concerned with the photoelectric characteristics of the various surfaces, and the second part was involved with image quality relative to photoelectric properties of different substrates. The characteristics of each of the surfaces was briefly discussed. Photoelectric properties such as 1) photosensitivity, 2) spectral response, 3) surface acceptance potential, 4) dark decay, 5) light decay, …
Synthesis Of 1-Aryl-3-Pyrazolidinones Through 3-(2'-Arylaminoethyl)-1,4,2-Dioxide-5-One Intermediates, David G. Lincoln
Synthesis Of 1-Aryl-3-Pyrazolidinones Through 3-(2'-Arylaminoethyl)-1,4,2-Dioxide-5-One Intermediates, David G. Lincoln
Theses
A new preparation of 1-arylpyrazolidinones, not involving the prior preparation of arylhydrazines , is reported. The reaction of 3-arylaminopropiono hydroxamic acids with chloroformates gives the title compounds. This transformation is discussed in terms of the intermediacy of the corresponding l,4,2-dioxazol-5-one ring system. These intermediates undergo mild nitrogen-atom induced decomposition with simultaneous N-N bond formation. The effects of chloroformates and aryl substitution is discussed.
Micro-Circuit Reticle Fabrication: An Investigation Of A Silver Halide Emulsion As A Portable Conformable Mask, Patrick St. Cin
Micro-Circuit Reticle Fabrication: An Investigation Of A Silver Halide Emulsion As A Portable Conformable Mask, Patrick St. Cin
Theses
An investigation of the possibility of spin-coating a silver halide emusion similar to that used on Kodak HRP plates onto a positive resist coating reticle blank was made. By changing the cating weight and temperature of the emulsion it was found that the emulsion could be coated onto the reticle without harm to the positive resist material. A five micron width line was imaged successfully and measured in the final chrome sub-layer of the reticle.
Determining Spectral Sensitivity Of Kodak Micro Positive Resist 820, Matthew L. Huck
Determining Spectral Sensitivity Of Kodak Micro Positive Resist 820, Matthew L. Huck
Theses
The spectral sensitivity of KODAK Micro Positive Resist 820 has been determined for the spectral range of 300nm to 500nm. A xenon-source monochrometer was used in a hard contact exposing system. Se/isitivity is defined as the inverse of the exposure (mj/cm ) needed to produce an image in a photoresist coated plate having walls of 70 normal slope. Low intensity reciprocity law failure has been conclusively shown to exist in this resist with exposure intensities of 100 mw/cm and below. Guide lines have been drawn up, based on the procedures and results of the experimentation, to assist photoresist users in …
The Effects Of Agitation In Positive Photoresist Image Quality When Using A Bubble Development System, Keith D. Mogerley
The Effects Of Agitation In Positive Photoresist Image Quality When Using A Bubble Development System, Keith D. Mogerley
Theses
An important goal of the microelectronics industry is to make new technological advances while keeping the cost of the fabrication process down. To achieve this goal, the microelectronics industry are presently placing more active devices on each chip, while at the same time trying to increase the number of successful chips per wafer. In order for the industry to successfully do this, they must reduce all of the dimensions in the circuit while trying to maintain its physical, chemical, and functional properties. These demands have made all steps of the fabrication process more critical. The scope of this project will …
A Decision Theory Approach To Tone Reproduction, Kevin E. Spaulding
A Decision Theory Approach To Tone Reproduction, Kevin E. Spaulding
Theses
The concepts of statistical decision theory were applied to the photographic tone reproduction system to develop an objective measurement of tone reproduction accuracy called the "expected loss" of the system. Reproductions were made of four scenes using systems with a wide range of tone reproduction characteristics. The expected loss for each system/scene combination was calculated, and the perceived tone reproduction accuracy was determined using the psychophysical scaling method of magnitude estimation. A statistically significant correlation was found between the subjectively determined accuracy, and system expected loss, but the degree of correlation was not high enough for the merit function to …
Investigation Of The Radiometric Integrity Of The Theogram After Its Raster Scan Lines Are Removed Through Spatial Filtration, Joan Allamena
Investigation Of The Radiometric Integrity Of The Theogram After Its Raster Scan Lines Are Removed Through Spatial Filtration, Joan Allamena
Theses
Thermograms are records of density levels which correspond to apparent temperatures. The process of thermographic imaging is based on Plank's law which relates temperature to radiance. It begins with the collection of quantum energy which is then converted to voltage. The voltage powers a light source to expose the recording material of the thermogram. Atmospheric effects must also be taken into consideration. The relationship which takes all variables into account can be found in appendix A.