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Articles 10111 - 10140 of 10267
Full-Text Articles in Entire DC Network
A Sculptor's Approach To The Design Of Aesthetically Functional Furniture, David Warner
A Sculptor's Approach To The Design Of Aesthetically Functional Furniture, David Warner
Theses
Not Included
Furniture: Concept And Media Exploitation, Jon Brooks
Natural And Artificial Depth In Painting, Beth Baldwin
A Study Of Abstract Landscape, Frederick Lipp
A Reflection Of Reality, Charles Gaines
The Three-Dimensional Painted Construction, William Phelan
The Aesthetic Of The Computer, Richard Lefevre
Designing More Aesthetic Movie Promotional Material, David Crothers
Designing More Aesthetic Movie Promotional Material, David Crothers
Theses
None provided.
Contemporary Romantic Figure Painting, Jacque Clements
[Monobath], William Quan
[Monobath], William Quan
Theses
A monobath designed for Kodak panatomic-X 35mm film was obtained, which produced similar contrast and 2/3 of a stop increase in speed as compared to Haist' s monobath MM-1 formula. Formulation of monobath was based on his formula by increasing the phenidone from 4 to 7 grams, sodium thiosulfate from 110 to 125 grams; pH and temperature were set at 11.0 and 85 F respectively
Changing The Contrast Of Ektacolor Paper, Britton Hopkin
Changing The Contrast Of Ektacolor Paper, Britton Hopkin
Theses
Practical effects (contrast, fog, maximum density, and scale index) on the characteristic curves of Ektacolor paper were found for variations in the concentrations of sodium carbonate, potassium bromide, 6-nitrobenzimidazole nitrate (Kodak AF-71), color developing agent (Kodak CD-3), pH, and citrazinic acid (CZA) in an Ektacolor developer used on the Kodak model 11 drum processor. The effects of pH, citrazinic acid, potassium bromide were found to be significant while the effects 6-nitro benzimidazol nitrate and CD-3 were significant only in isolated insidences.
An Estimation Of Accuracy For Star-Oriented Optical Fixes Of Artificial Earth Satellites Produced By Amateur Equipment, David Weishaupt
An Estimation Of Accuracy For Star-Oriented Optical Fixes Of Artificial Earth Satellites Produced By Amateur Equipment, David Weishaupt
Theses
The project's intent is to determine the accuracy of simple amateur equipment in producing optical fixes from a reference star background. A standard 4" x 5" Speed Graphic camera is used with a timing device consisting of a short wave radio and a tape recorder to record the time at exposure. The accuracy obtained from two out of four observations is within 1800 feet along the orbital path of the satellite.
Subjective Evaluation Of The Noticeable Density Differences In A Continuous Tone Photograph, Barry Buckser
Subjective Evaluation Of The Noticeable Density Differences In A Continuous Tone Photograph, Barry Buckser
Theses
Eighteen photographs of two subjects, printed on contrast grades numbers 1, 2, and 4, of Kodak Polycontrast paper and mounted on gray, white, and black mount boards were subjectively evaluated to determine the number of noticeable density differences the average observer can see. Objective measurements were made of the noticeable density differences. The noticeable density differences for a continuous tone print were in nine major groupings and four minor groupings. No significant difference was found between the number of densities found on prints of different contrast and different mounts. No significant difference was found between photo graphic orientated and non-photographic …
A Latent Image Distribution Study Of "Dry-Writing" Photo-Recording Materials, Joseph Geller
A Latent Image Distribution Study Of "Dry-Writing" Photo-Recording Materials, Joseph Geller
Theses
Improving silver halide emulsions used for the direct writing of oscillographic traces is a topic not discussed openly in the technical literature. It has been previously thought that good contrast between image and background depends upon the extreme low-intensity reciprocity law failure of these emulsions combined with their ability to be desensitized by low-intensity light. Evidence presented in this report indicates that low-intensity reciprocity law failure is very desirable for the surface image; however, for the internal image, the most practical* of the three materials tested reveals no reciprocity law failure within the time interval from IO*2 to 10*6 seconds …
A Method Of Calibrating A Photo Optical System For Determining Spatial Relationships, E. Glab, D. Zimmerman
A Method Of Calibrating A Photo Optical System For Determining Spatial Relationships, E. Glab, D. Zimmerman
Theses
A technique is described for the calibration of a photo-optical system. This technique yields a response surface. Measurements of image density and image width taken from a microdensitometer trace can be related through this response surface to object dimensions.
Revelations: The Analysis And Synthesis Of Images, Scanlon F.
Minimizing The Effects Of The Relief Image In A Coherent System Through Index Matching, Edward Sklar
Minimizing The Effects Of The Relief Image In A Coherent System Through Index Matching, Edward Sklar
Theses
The effect of the relief image in a coherent optical system was minimized by matching the average refractive index of the emulsion ne with that of a liquid of a known refractive index nl. A match of ne and nl was determined by minimizing the intensity of the first side order of the Fraunhofer diffraction pattern of a sine-wave image. A match of ne and nl can be made exactly only when the surface gelatin associated with the silver and the differential tanning effects of development are not present. Under other conditions ne is not homogeneous. The intensity of the …
Revelations: The Analysis And Synthesis Of Images, F. Scanlon
A Sophistication Of The "Effective Exposure" Method Of Compensating For The Chemical Amplification Of The Photographic Emulsion As Applied To The Determination Of The Modulation Transfer Function, Lloyd Leiderman
Theses
Known exposures were impressed upon Panatomic-x film by imaging interferometrically generated cosinusoidal intensity distributions of 24, 64, and 96 cycles per millimeter and micro-character istic curves of the material were constructed.
An Investigation Of Photographic Edges In Determination Of Modulation-Transfer Functions, Walter Gramiak
An Investigation Of Photographic Edges In Determination Of Modulation-Transfer Functions, Walter Gramiak
Theses
An investigation is developed for determining whether certain factors, which are characteristics of a photographic edge, are of significance in the derivation of the modulation transfer function of a system from the edge. Factors investigated were edge spread, density range (contrast), and background density. The experiment was limited as to levels used but it was determined that the edge spread significant and a minimum allowable edge spread was calculated.
Color Monobath Development, John Plumadore
Creation Of An Audio-Slide Presentation For The Promotion Of A Sport Organization, David Saifman
Creation Of An Audio-Slide Presentation For The Promotion Of A Sport Organization, David Saifman
Theses
None provided.
Variations In The Spectral Radiometric Function, Measured In The Field, Of Five Different Types Of Terrain As A Function Of Atmospheric Conditions, Solar Altitude, And Viewing Position, Guy Welch
Theses
The purpose of this experiment was to: 1. Determine how closely five different types of terrain, such as sand, cultivated soil, grass, loose rocks, and bushes resembled Lambertian surfaces. 2. Determine how closely the radiometric functions for three wave length bands compared for each type of terrain. 3. Develops the shape of the radiance envelope as defined by the radiometric function for each type of terrain. 4. Determine the effect of changes in solar altitude on the radiometric function. 5. Determine the effect of changing the conditions of irradiance from clear sky to overcast sky on the radiometric function. The …
Air And Water Pollution: A Visual Communication On Pollution, James Parton
Air And Water Pollution: A Visual Communication On Pollution, James Parton
Theses
Not provided.
Covered Jars, Mary Abella
Testing The Fisher-Foser Mark-I On-Easel Color Analyzer, C. Donald Fisher, Richard Foser
Testing The Fisher-Foser Mark-I On-Easel Color Analyzer, C. Donald Fisher, Richard Foser
Theses
It is proposed to test and statistically evaluate the performance of an on-easel color analyzer built by the authors. It is discovered during the testing program that the device is nonfunctional, and the testing program is re-directed toward finding the causes of the instrument mal-function. It is concluded that the particular characteristics of the cadmium sulfide cell employed, and the electronics of the device, introduce non-linearities which make readings non-repeatable. It is nevertheless felt that the concepts involved in the device, and in the testing program as originally envisioned, are sound, and that further development of the device would produce …
Creative Applications Of Photographic Media For Industry And Architecture, Francis Ho
Creative Applications Of Photographic Media For Industry And Architecture, Francis Ho
Theses
None provided.
A Study Of The Low Current Density Electrolysis Of Ammonium Thiosulfate Fixers, John Bowman
A Study Of The Low Current Density Electrolysis Of Ammonium Thiosulfate Fixers, John Bowman
Theses
Determinations of the current tolerences of sodium thiosulfate and ammonium thiosulfate fixers are made and compared. The rate of fixation of ammonium thiosulfate fixer before and after electrolysis is studied. The current efficiency of low current density electrolysis in ammonium thiosulfate is found. Causes and forms of sulfiding are discussed and related to the work of the experimenter.
A Multi-Exposure, High Resolution Camera For The Production Of A Resolving Power Test Target, With Extended Range, Richard Bergen
A Multi-Exposure, High Resolution Camera For The Production Of A Resolving Power Test Target, With Extended Range, Richard Bergen
Theses
Since 1888, a series of mutually perpendicular lines have been used as a test object for evaluation of optics, systems, products, etc. The availability of such test objects has traditionally been in the frequency range of about one cycle per millimeter to a couple hundred cycles per millimeter. These have been available from a few manufacturers, none of which offers the extended range of .25 cycles per millimeter to greater than one thousand cycles per millimeter proposed in this project. The usefulness of such an extended range serves to make it an all-purpose test target for measurement of enlarging, contact …
Ph Effects On Fluorescent Fatigue, Donald Miraco, John Pierce
Ph Effects On Fluorescent Fatigue, Donald Miraco, John Pierce
Theses
Fluorescent dyes tend to fatigue when exposed to short wavelength radiation. Since all work is not done at one pH level, it is necessary to know how a change in pH will effect the fluorescing characteristics of a dye. Of particular interest is the effect on fatigue as a function of time. The shift in spectral absorption with varying pH was established for fluorescein dye. Its increase in fluorescing intensity with increasing negative ion concentration was then measured. With increasing exposure time the pH's of 6.0, 8.0, and 10.0 gave indications of fatiguing while the pH's of 2.0 and 4.0 …