Digital Commons Network^™

Print Quality Measurement: The Application Of Instrumental Analysis To Graphic Arts, John Kuder

Theses

Instrumental analysis is a powerful tool when evaluation of print quality is desired. Traces of prints were obtained "by scanning them with a microdensitometer equipped with a reflection reading head attachment. The ability of newsprint to produce a good print under specified printing conditions is evaluated by measuring the uniformity of the contrast between dots and backgrounds, as well as the uniformity of the dots. A method of evaluation for these scans is formulated and discussed. Conclusions and reccomendations are made.

Relaying Pannel Road 345 Kv, Robert Jones

Theses

The protective relay schemes for the new Rochester Gas and Electric 's 345 kV tie at Pannell Road are described. The line protection consists of two sets of permissive overreaching, direct underreaching, transferred trip schemes; one being electromechanical and one being solid state. A brief description of the basic relay schemes, a list of relays and an elementary diagram is included.

Design And Construction Of A Standard Planetary Microfilming Camera Target Array (Pmta), Bruno Glavich, Richard Johnson

Theses

After researching the current applications, problems, and evaluation techniques of planetary microfilming systems, the authors designed and constructed a standard Planetary Microfilming camera Target Array (PMTA) that essentially satisfied three criteria, i.e. 1) inexpensive to produce, 2) simple to use, and 3) satisfies testing criteria for both microfilming equipment manufacture and user. Ten evaluation parameters were incorporated in two targets PMTA-I and PMTA-II. PMTA-I includes tests for 1) resolution, 2) readability of printed matter, 3) reduction ratio, 4) exposure and processing, 5) full field visual distortion, and finally 6) corner visual distortion. PMTA-II was designed to evaluate, 7) quatitative distortion, …

Optical Measurement Techniques For Blanket Release Characteristics On Web Presses, Joseph Griggs, Ronald Sandford

Theses

Offset printing involves the transfer of ink from the image areas of the printing plate to the paper through an intermediate blanket. The blanket is usually composed of synthetic fiber materials (e.g. nylon). Blanket-paper-ink characteristics contribute to limits of printing quality and mechanical press operation. Paper and blanket physical surface characteristics and also ink tackiness contribute to adhesion between the paper and blanket. If the adhesion is sufficiently large, the force required to separate the paper from the blanket may cause deterioration of print quality or press operational problems. Deterioration of the printed quality may include picking of coating from …

Design, Fabrication And Evaluation Of A Monochromatic Sensitometer, Jay Johnson

Theses

An intensity scale monochromatic sensitometer was constructed using a Bausch and Lomb single-pass diffraction-grating monochromator as the dispersing device. A ribbon-filament tungsten lamp was used to supply the radiant energy to the monochromator. The instrument was calibrated 2 radiometrically and was shown to have a maximum irradiance of 10 ergs/cm 2 2 at 425 nm, 43.7 ergs/cm at 550 nm and 26.1 ergs/cm at 700 nm. Exposure is accomplished by transporting the film and step tablet past a slit at a constant velocity. Several film velocities and slit widths are available to produce exposure times ranging from 0.003 to 2.0 …

Pulse-Width-Modulation Control For Second Order Plants Via A Quadratic Criterion, Charles Gebo

Theses

This paper presents a mathematical study of the control of a second order plant having real distinct roots by use of pulse -width-modulation. An integrator connected between the pulse-width-modulator and the plant is a fixed element of the control loop. The integral-square error is used as the Index of performance. The ISE is minimized with the constraint that the pulse modulator is limited to a maximum of one output reversal for a step change in input. Derivation of the equation which will predict the exact switching time of the modulator output to minimize the performance index for any step amplitude …

R.I.T. News & Events - December 13, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

Reporter - December 3rd 1971, Rit Reporter Staff

University Publications

No abstract provided.

R.I.T. News & Events - November 22, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

Reporter - November 19th 1971, Rit Reporter Staff

University Publications

No abstract provided.

R.I.T. News & Events - November 15, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

Reporter - November 5th 1971, Rit Reporter Staff

University Publications

No abstract provided.

Reporter - October 29th 1971, Rit Reporter Staff

University Publications

No abstract provided.

R.I.T. News & Events - October 18, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

Reporter - October 15th 1971, Rit Reporter Staff

University Publications

No abstract provided.

Reporter - October 8th 1971, Rit Reporter Staff

University Publications

No abstract provided.

Ntid Focus October/November 1971, Ntid Marketing And Communications

National Technical Institute for the Deaf Papers

1st Entering Student Among Graduates||79 Students Complete Evaluative Program||Avery to Direct Counseling Services||Becomes Interpreter Student Volunteer Hooked on Helping||Congress Concurs on Problem: Deaf Youngsters Throughout World Use Poor Grammar||Deaf 'Teach' Future MD's||Educational, Social Expectancy Limited For Deaf of World||Evening College Offers Course on Deafness||First Entering Student Graduates||Golden Awards Highlights Activities of Drama Club||Graduate Internships Program Underway||Great Future Potential: NTID Graduate Proud of IRS Job||Institute Recognizes Academic Excellence||Kubis Appointed Full Professor||Lawrence Mothersell... 'Distinguished Young Teacher'||Live-in Aids Communication||NTID Construction Underway||NTID Students Look to the Planets...||New Film Illustrates Deaf Communication||Price Coordinates Student Planning||Public Relations Campaign Earns National Honor||Research Aids Interaction of Deaf, Hearing||Seminar …

R.I.T. News & Events - September 20, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

R.I.T. News & Events - August 2, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

R.I.T. News & Events - July 5, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

R.I.T. News & Events - June 21, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

Teilhard De Chardin's Mass On The World, Mary Stover

Theses

None provided.

Ntid Focus June 4, 1971, Ntid Marketing And Communications

National Technical Institute for the Deaf Papers

3 Structures Comprise Facilities||A Monumental Day in the Life of an Institute||After Three Years...||Commissioner of Education Lauds NTID's Presence||Human Understanding Provides Commitment to the Future||Key to Future: Educator Views Technology||NTID Explores Uncharted Ground||NTID Groundbreaking Signifies Giant Step in Education of Deaf||NTID Now a Reality||Robert Panara Characterizes NTID Dream||Social Assimilation Affirmed by Students at Groundbreaking||Uncommon Dedication of Staff Sparks Institute's Development

Tone Reproduction Of Small-Scale Images Using Lithographic Film Under Infectious And Noninfectious Developmental Conditions, Julian Lopez

Theses

The tone reproduction curve of small-scale images on KODALITH film developed with KODALITH Super Developer were obtained by microdensitometry using a sinusoidal target of 64 percent modulation as a sensitometric tablet to produce images at spatial frequencies corresponding to screen rulings of 9 to 375 lines/inch. A similar series of exposures was processed with addition of sulfite to the developer to give essentially noninfectious development. Speed and contrast with KODALITH developer increased with spatial frequency; speed increased continuously by a small factor and contrast passed through a maximum (80 percent greater than for large area image) at a spatial frequency …

Design Considerations For A Recording Instrument To Be Used In Conjunction With R.I.T.'S Radio Astronomy System, Robert D. Harned

Theses

Recording of radio emission from the sun can adequately be accomplished using a magnetic tape system. Magnetic tape's advantages over other recording systems include higher information capacity, low cost, and ease of operation.

Modifications of the tape deck include the recording motor speed controlled by a SCR circuit, a suitable filtering device for the SCR, and an external fan for cooling the circuit and motor.

Careful consideration has been given to the frequency response and signal-to-noise ratio as it affects the accuracy of the recording.

Design Of A Tactile Vocoder, Roger Carr

Theses

A tactile vocoder is designed for the feedback of acoustic cues for detection by the sense of touch. Design objectives based on speech signal properties are generated. An existing spectrum channel vocoder is the starting point of the design. The follow-on modulation stage after the filter channels of the spectrum channel vocoder is built up in a breadboard model and tested. The transfer function of the modulation stage has an input dynamic range of 68 decibels, being linear over 38 decibels of this range. The complete breadboard model using one of the filter channels has an input dynamic range of …

Computer Application Of Historical Data, Raymond Wright

Theses

None provided.

R.I.T. News & Events - May 31, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

R.I.T. News & Events - May 24, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

R.I.T. News & Events - May 17, 1971, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.