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Articles 11581 - 11610 of 13413
Full-Text Articles in Entire DC Network
R.I.T. News & Events - July 27, 1978, University News Services, Rochester Institute Of Technology
R.I.T. News & Events - July 27, 1978, University News Services, Rochester Institute Of Technology
University Publications
No abstract provided.
Cold Emulsion Polyvinyl Bindability Criteria, James Stuart Rich
Cold Emulsion Polyvinyl Bindability Criteria, James Stuart Rich
Theses
The purpose of this study is to evaluate new types of materials and technologies in the fast-changing bindery industry. An optimum binding method (OBM) is being determined by using different brands of cold emulsion polyvinyl acetate, different adhesive, binding methods, spine preparation, and papers. Testing is performed with a combination of materials and technologies to determine the actual binding strength and performance of adhesives. Results of the tests were analyzed statistically by Analysis of Variance (ANOVA), graphing, percent of change and ranking of values to find the optimum. The results of this study show some relationships of the factors, adhesives, …
R.I.T. News & Events - July 13, 1978, University News Services, Rochester Institute Of Technology
R.I.T. News & Events - July 13, 1978, University News Services, Rochester Institute Of Technology
University Publications
No abstract provided.
Mechanical Furniture, Michal Rosen
Reporter - July 1st 1978, Rit Reporter Staff
Reporter - July 1st 1978, Rit Reporter Staff
University Publications
No abstract provided.
Interimage Effects And The Mtf Of A Color Reversal Film, Joel Panning
Interimage Effects And The Mtf Of A Color Reversal Film, Joel Panning
Theses
Interimage effects have long been recognized as a factor in the reproduction of color. Reversal materials are no exception and exhibit interimage effects which have previously been revealed through techniques using END analysis. This study presents a method for revealing the presence of interimage effects in a reversal film's Modulation Transfer Function. Utilizing filtering techniques, two dyes of a three color transparency are eliminated from the final image by exposure and development. The remaining single dye image at a specified level is then compared to the corresponding layer and image in a colorimetrically specified neutral. The edge gradient analysis method …
R.I.T. News & Events - June 29, 1978, University News Services, Rochester Institute Of Technology
R.I.T. News & Events - June 29, 1978, University News Services, Rochester Institute Of Technology
University Publications
No abstract provided.
R.I.T. News & Events - June 15, 1978, University News Services, Rochester Institute Of Technology
R.I.T. News & Events - June 15, 1978, University News Services, Rochester Institute Of Technology
University Publications
No abstract provided.
A Preliminary Investigation Into The Effect Of Select Paper Characteristics On Dot Gain In Web Offset Lithography, Timothy Clark
A Preliminary Investigation Into The Effect Of Select Paper Characteristics On Dot Gain In Web Offset Lithography, Timothy Clark
Theses
This thesis describes a screening experiment designed to determine which of seven paper characteristics influence dot gain in web offset lithography. Dot gain is the enlargement of halftone dots during printing from plate to paper with a resultant increase in dot area. The variability of dot gain during a press run and from run to run is detrimental to the quality of black and white and color reproductions. The seven paper characteristics: gloss, smoothness, absorption, physical density, caliper, opacity, and formation are measurable characteristics used to describe the printability of a paper. Using one unit of a four-unit web offset …
R.I.T. News & Events - June 1, 1978, University News Services, Rochester Institute Of Technology
R.I.T. News & Events - June 1, 1978, University News Services, Rochester Institute Of Technology
University Publications
No abstract provided.
Determination Of The Relationship Between Information Capacity And Identification By Simulated Aerial Photography, Michael Jones
Determination Of The Relationship Between Information Capacity And Identification By Simulated Aerial Photography, Michael Jones
Theses
The relationship between information capacity and the ability of photointerpreters to identify vehicles in simulated aerial reconnaissance was investigated. An aerial scene lighting simulator was constructed and used in the production of a series of simulated aerial reconnaissance photographs of models of military tanks and trucks. The information capacity of these photos was varied by defocussing the taking camera and the simulated ground scale was varied by changing the taking camera reduction. Duplicate positives of these images were evaluated by trained military photointerpreters who determined the resolving power and attempted to identify the vehicles from a key provided. The resulting …
Mtf For Photographic Films By Parameter Estimation In The Space And Frequency Domains, James H. Clark
Mtf For Photographic Films By Parameter Estimation In The Space And Frequency Domains, James H. Clark
Theses
A new method for determining the modulation transfer function (MTF) for photographic films is described. The MTF and corresponding line spread function are approximated by carefully chosen models which are uniquely specified by a few parametric constants. By estimating the parameters in space and frequency simultaneously, the interactions between the two domains result in improved estimates over those provided by either domain alone. A computer algorithm has been written to determine the parameter constants that define the best-fit model for the emulsion MTF.
The Effect Of Simultaneous Intensification On The Detective Quantum Efficiency, B. Desai
The Effect Of Simultaneous Intensification On The Detective Quantum Efficiency, B. Desai
Theses
The effect of simultaneous intensification on the detective quantum efficiency of Kodak high definition aerial film type 3414 is investigated. The detective quantum efficiency or DQE varies from .00086 % to .115 % for the unintensified exposure over a log exposure range of 0.9, with the peak at .1223 %. This exposure has a base+fog density of 0.06. Different degrees of simultaneous intensification result in varying values of DQE. The exposure with simultaneous intensification which produced a base+fog of 0.24 gave the maximum sensitometric speed incease by a factor of 1.38 f/stops or 158 %. This exposure varies in DQE …
A Pursuit Of Unobtrusive Painting: A Study Of Oneself, George Schluederberg
A Pursuit Of Unobtrusive Painting: A Study Of Oneself, George Schluederberg
Theses
None provided.
Reporter - May 19th 1978, Rit Reporter Staff
Reporter - May 19th 1978, Rit Reporter Staff
University Publications
No abstract provided.
R.I.T. News & Events - May 18, 1978, University News Services, Rochester Institute Of Technology
R.I.T. News & Events - May 18, 1978, University News Services, Rochester Institute Of Technology
University Publications
No abstract provided.
Reporter - May 12th 1978, Rit Reporter Staff
Reporter - May 12th 1978, Rit Reporter Staff
University Publications
No abstract provided.
Sensitometric Study Of Io-Bromized Daguerreotype Plates, Mark Stebbins
Sensitometric Study Of Io-Bromized Daguerreotype Plates, Mark Stebbins
Theses
This research deals with a study of speed and contrast of daguerreotype plates that receive varying levels of sensitizing to the fumes of iodine, then bromine, and finally, a second iodizing. This sensitizing operation along with mercury development and gold gilding are characteristic of the process in its most improved state. Statistical analysis reveals how iodizing and bromizing affect speed and contrast. A field study was conducted to relate the sensitometric data to images produced in the camera. The experiment suggests an exposure index of .05 for the optimum in speed. This would correspond to an exposure of roughly 1 …
Reporter - May 5th 1978, Rit Reporter Staff
Reporter - May 5th 1978, Rit Reporter Staff
University Publications
No abstract provided.
R.I.T. News & Events - May 4, 1978, University News Services, Rochester Institute Of Technology
R.I.T. News & Events - May 4, 1978, University News Services, Rochester Institute Of Technology
University Publications
No abstract provided.
The Determination Of The Operating Characteristics Of A Newspaper Camera Department By Using Queueing Analysis, Owen Smith
Theses
The methods of operation of many newspaper camera departments have been established over a long period by many different supervisors and department heads. The system may have been good once but went bad because the nature of the department's operations changed without corresponding changes in the system. The production manager must be able to detect when a system needs modifying. Presently, there are few tools available to the manager for evaluating the effectiveness of the department. The goal of this study was to demonstrate how a very simple analytical technique could be applied to a camera department's operations and, thereby, …
A General Purpose Sensitometer For Routine Sensitometric Testing, John Lumia
A General Purpose Sensitometer For Routine Sensitometric Testing, John Lumia
Theses
A Kodak Model 101 sensitometer has been improved from the original design and also been made more versatile so as to be able to expose a greater variety of general-purpose films. Improving the machine has been accomplished by modifying the shutter to produce an exposure time of 1/20 second instead of 1/5 second, thus eliminating reciprocity law failure from calculations, and also complying with the American National Standards Institute specification for exposing continuous -tone films. The previous tungsten lamp has been replaced with a tungsten-halogen lamp. Versatility has been added to the machine by introducing a xenon-flash lamp in the …
A Synthesis: Mood, Creation And Theory, Sfona Pelah
A Study Of The Effect Of Fabric Structure And Mesh Count Variation In Indirect Stencil Preparation In A School Graphic Arts Laboratory, James Tenorio
A Study Of The Effect Of Fabric Structure And Mesh Count Variation In Indirect Stencil Preparation In A School Graphic Arts Laboratory, James Tenorio
Theses
In order to choose the best working fabric for screen printing in a school graphic arts laboratory, a representative group of eight polyester fabric samples were tested. The fabrics covered a range of mesh counts from coarse to medium and included fabrics of both multifilament and mono filament types for each mesh count. Both types were of medium grade or quality, "XX" for the multifilament and "T" for the monofilament. A specially designed resolution test object was printed by college level students in an introductory graphic arts class using indirect stencils with the sample fabrics. The stencil and five of …
A Survey Of Book Printing In The Lagos Area With Recommendations For Meeting The Need Of Universal Primary Education In Nigeria, Agbo Ella
Theses
With the sudden introduction of Universal Primary Education in Nigeria, the demand for books went up by 60%. This demand will be made acute in the 1979/80 academic year when U.P.E. is made compulsory for all school age children. A faster, quicker method of composition, camera work, stripping and platemaking, press work, bindery operation, and a good production control will increase the printers' output to meet the increased demand. The methodology of this study was based on information gathering through personal interviews. The production personnel in the book printing companies in Nigeria were asked and responded to the questions that …
A Comparison Of Sulfur Sensitization On Silver Bromide And Silver Iodobromide Emulsions, Frederick Marland Jr
A Comparison Of Sulfur Sensitization On Silver Bromide And Silver Iodobromide Emulsions, Frederick Marland Jr
Theses
In emulsion literature, it has been stated that silver iodobromide emulsions can be sensitized more efficiently than pure silver bromide. 20 Recently, work has been published comparing the two emulsion types, using single jet emulsions with high internal versus surface sensitivity. Tani found that when the internal / surface sensitivity ratio increased because of the addition of iodide, the ratio of sulfur sensitization also increased. 5 This showed that the increase in sensitivity upon chemical sensitization was greater for the iodobromide emulsion, and can be explained by the lower sensitivity of the unsensitized silver iodobromide. In this experiment, internal sensitivity …
Production And Evaluation Of A Holographic Lens, H. Scott Gregory
Production And Evaluation Of A Holographic Lens, H. Scott Gregory
Theses
This thesis is concerned with the production of high diffraction efficiency holographic lenses for laser machining. A holographic lens is a high efficiency, low absorption phase hologram which, in this application, is used to diffract an expanded, highpower laser beam into a desired focal point or pattern. For ideal phase holograms, the coupled–wave theory, as applied by H. Kogelnik1, predicts diffraction efficiencies as high as 100%. This implies that all the power in the expanded laser beam could be diffracted into the focal point or pattern. Single focal point holographic lenses have been produced with 40% diffraction efficiency. These lenses …
The Practical Use Of The Astrolabe: Sculpture/Poem, Robert C. Malone
The Practical Use Of The Astrolabe: Sculpture/Poem, Robert C. Malone
Theses
None provided.
A Quantitative Study Of Cuprous Oxide Photodismutation, Anne Dresden Bowman
A Quantitative Study Of Cuprous Oxide Photodismutation, Anne Dresden Bowman
Theses
A cuprous oxide emulsion was made using noodling and washing emulsion making techniques. An attempt to use phthalated gelatin and coagulation washing resulted in the formation of cuprous hydroxide and destruction of the phthalated gel molecule and lack of coagulation within the emulsion. Cuprous oxide was also slurried with water and coated onto unglazed porcelain plates. The density-log exposure relationship was linear for the cuprous oxide slurry and non-linear for the cuprous oxide emulsion. The cuprous oxide film gave a speed value twenty-five times greater than that obtained with the slurry. The cuprous oxide dismutation system possesses great variability and …
An Interpretation Of Color Fields Through Screen Printing, Mary Dunn
An Interpretation Of Color Fields Through Screen Printing, Mary Dunn
Theses
None provided.