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Articles 9811 - 9840 of 10269
Full-Text Articles in Entire DC Network
Effect Of Organic And Inorganic Silver Complexing Agents On Image Quality, Stephen Scharfstein
Effect Of Organic And Inorganic Silver Complexing Agents On Image Quality, Stephen Scharfstein
Theses
Image Quality of plus-x film processed in a monobath solution containing an inorganic silver complexing agent ( sodium thiosulfate ), was compared to plus-x film processed in an organic silver complexing agent ( mercaptoacetic acid ). A control run using DK-50 was also made. The image quality of the film was best with DK-50 and worst with mercaptoacetic acid. Image quality was determined by the results of the following tests: 1 ) Resolving Power 2 ) Acutance 3 ) MFT 4 ) Granularity
The Usability Of Tungsten Halogen Lamps As Secondary Standards Of Luminous Intensity, James Buchek
The Usability Of Tungsten Halogen Lamps As Secondary Standards Of Luminous Intensity, James Buchek
Theses
Tungsten halogen lamps are widely used as sources of radiant intensity because of their compactness and long life. Little is known, however, about their usefulness as secondary standards of radiant intensity. What is unknown is the polar distribution of the emitted light. If it is irregular in space, it may be possible to use a frosting as a means of providing for a more uniform distribution. In addition, use of a black sleeve over the lamp may be used to control emitted light, and also control the temperature of the lamp. To perform the experiment, a lampholder was designed and …
Image Spread In The Infectious Development Of Graphic Arts Film, William Colgan
Image Spread In The Infectious Development Of Graphic Arts Film, William Colgan
Theses
The problem of this experiment is to determine which of three factors; sulfite level, bromine level, and development time, affect the image spreading during the infectious development of a graphic arts film. Three different levels of each factor will be studied. The method used consists of measuring the distance between two fine edges on a test target. This test target is then contact printed onto the graphic arts film. The distance between the two fine edges on the graphic arts film is then measured. Any difference between the two distances will be the result of image spreading. It is these …
Postwar Vignettes, Brown Dana
The Formulation Of A Woodworking Studio, D. Hunter Kariher
Postwar Vignettes, Dana Brown
Master's Thesis, Susan Childs
The Unified Figure/Ground Relationship, Christopher Baker
Loose Vowels, Peggy Klineman
Say It With Flowers, Jack Farkas
Wood-Working Curriculum Proposal, Thomas Lacagnina
Contemporary Costumes, Martha Sklepko
A Comparison Of Phenidone Determinations In Photographic P.Q. Developers, Ernest Dankert Jr
A Comparison Of Phenidone Determinations In Photographic P.Q. Developers, Ernest Dankert Jr
Theses
Five methods for determining Phenidone in Phenidone-hydroquinone were investigated with aspect to accuracy, precision, and time required to perform the analysis. The methods include ultraviolet spectroscopy, colorimetric estimation, and cerimetric titrations. A cerimetric analysis was found to have the greatest precision, a 7% error at the 95% confidence level. All analyses required approximately the same time to complete. Each analysis allowed the accuracy to be adjusted, i0 compensate for operator techniques
Communication Of The Master Site Plan Of Rochester Institute Of Technology, Barbara Ewig
Communication Of The Master Site Plan Of Rochester Institute Of Technology, Barbara Ewig
Theses
Not Included
The Magnificent American, Stanley Feingold
Notes On Liberation, Phillip Garbus
Death Watch, Andrew Gelfand
Two Studies In Animation, Irene Feingold
Design Seminar, Bull Clifford
Design Seminar, Clifford Bull
A Study Of Latent Image Fading In So-343, Mitchell Glasser
A Study Of Latent Image Fading In So-343, Mitchell Glasser
Theses
Experimental evidence indicates that a high intensity, short duration exposure produces surface image exclusively in this emulsion. The ensuing fading was shown not to be caused by internal migration of the latent image. The high intensity exposure produced a massive amount of sub image nuclei which could subsequently be rendered developable by a low intensity post exposure. This latensification failed to achieve an improvement in image stability, in that the amount of fading was shown to be solely a function of the density of the fresh exposure. It was hypothesized that although this treatment did raise some grains from an …
One Of Ten Thousand: A Way For The Printmaker; Thoughts And Images Related To Involvement In Zen Buddhism, C. Alan Fisher
One Of Ten Thousand: A Way For The Printmaker; Thoughts And Images Related To Involvement In Zen Buddhism, C. Alan Fisher
Theses
None provided.
Analog Control Of Sampled-Data Systems, Harry Trietley
Analog Control Of Sampled-Data Systems, Harry Trietley
Theses
The use of conventional analog controllers to produce a one- quarter -decay transient response in sampled output control systems is studied. In particular, the control of processes which can be adequately represented by a first order lag plus deadtime is analyzed, where the process deadtime does not exceed the sampling interval. The process output is measured by a sample-and-hold device, which introduces additional deadtime equal to the sampling interval. This extends previous work, which considered only the plant delay. Proportional and proportional- integral (two-mode) controllers are studied. Controller settings yielding a one-quarter-decay transient response are calculated using z-transform theory. Plant …
Investigation Of The Relation Between The Adjacency Effects At An Edge Produced By Nitrogen-Burst And Viscous Processing, Richard Hooker
Investigation Of The Relation Between The Adjacency Effects At An Edge Produced By Nitrogen-Burst And Viscous Processing, Richard Hooker
Theses
Adjacency effects in nitrogen-burst and viscous processing of Eastman Fine Grain Release Positive Film, Type 5302, (in well-buffered Phenidone-hydroquinone developers) were measured by edge exposure microdensitometer scans. A well-buffered basic formulation containing 10 grams of hydroquinone and 1 gram of Phenidone at a pH of 10.5 was chosen for study. Sensitivity to pH and concentration level was tested by independently reducing the developing-agent concentrations by 30 percent and 50 percent, and the pH to 10.2. Chemically equivalent formulations for viscous development were produced by thickening the developer solutions with sodium carboxymethyl cellulose. No significant adjacency effects were observed for nitrogen-burst …
Doing Portraits On The Street Or I Remember Goya, Robert Clarke
Color Panoramic Pinhole Photography, Richard Stanley
A Near Time Optimal Adaptive Control Algorithm For Second Order Systems, Carlton Warren
A Near Time Optimal Adaptive Control Algorithm For Second Order Systems, Carlton Warren
Theses
During the past few years, many non-linear and/or adaptive control algorithms have been developed for industrial processes. Many have been rather complex schemes either requiring or specifically developed for an on line digital computer. As an alternative to such systems, at least on low order plants, the development of a near time optimal, adaptive control algorithm is proposed. This rule must encompass a significantly large group of the systems to be encountered and yet be simple enough for hardware implementation as a single loop controller. The author's attention is confined primarily to systems whose transfer functions may be approximated by …
Development And Testing Of A Non-Recording Microdensitometer, Charles Biss, Randy Defrank
Development And Testing Of A Non-Recording Microdensitometer, Charles Biss, Randy Defrank
Theses
A need exists in American industry for a small-area reading densitometer. The object of this effort was to examine optical designs proposed by Photographic Sciences Corporation, to formulate a reasonable system design, and to work this design into a prototype instrument. After testing several optical designs, one was chosen that proved its feasibility on the micro-optical bench. A case was designed for the unit and the optical system made of microscope components was set into place. A photomultiplier tube and amplifier were incorporated as the photometric measuring device. The system was tested and proved to exhibit the qualities of a …
The Setting Up Of An Introductory Woodworking Course And Basic Shop, H. Wayne Raab
The Setting Up Of An Introductory Woodworking Course And Basic Shop, H. Wayne Raab
Theses
Not provided.
Automatic Color, Gopal Srivastava