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Articles 7351 - 7380 of 10272
Full-Text Articles in Entire DC Network
The Permeation Of Volatile Compounds Through Acrylonitrile Polymers Films, Juan Escobar
The Permeation Of Volatile Compounds Through Acrylonitrile Polymers Films, Juan Escobar
Theses
The increasing use of polymeric films for packaging food is challenging the industry with two very critical facts: aromatic constituents of foodstuffs can either be absorbed by the packaging materials or permeate through the polymers and escape from the package. The packaging and food industries are constantly researching new packaging materials and systems which present alternatives to overcome these problems. In order to evaluate polymers' performance, it is then necessary to develop new testing equipment to prove their barrier efficiency . This study analyzed and compared the characteristics of three barrier materials: BarexR 210, BicorR 84, and BicorR 70 by …
Relics Of Psychic Events, Bonnie Coen
A Study In The Application Of Shock Response, Spectrum Analysis To Disk Drive Shipping And Handling Shock Tests, Kenneth Neuburg
A Study In The Application Of Shock Response, Spectrum Analysis To Disk Drive Shipping And Handling Shock Tests, Kenneth Neuburg
Theses
Disk drives have been around since the 1950's. Since their inception, disk drives have undergone significant improvements and considerable downsizing. Personal computers and lap top versions have fueled increased demand for smaller, more powerful disk drives. To keep up with this demand and the need for greater disk drive performance, many electronic firms are sourcing OEM drives for their product lines. Although the basic disk drive components are similar, one should not assume that all drives are created or evaluated equally. Beyond the obvious mechanical design differences, supplier fragility specifications seem to be creating a form of "specmanship". This term …
A Study Of F-Flute's Feasibility As A Substitute For Folding Carton, Oranuch Khlangkamhaengdech
A Study Of F-Flute's Feasibility As A Substitute For Folding Carton, Oranuch Khlangkamhaengdech
Theses
In the paperboard packaging industry, which requires high quality graphics and an attractive package, F-flute is well positioned for increased market growth. F-flute has the potential for revolutionizing both corrugated containers and folding cartons. It is the merger of these two technologies, the strength of corrugated combined with the quality printing and structural design of the folding carton, that provide the unique characteristics of stacking strength, low weight and stiffness, F-flute is gaining widespread attention as an alternative to paperboard folding cartons. There are few quantitative studies on F-flute to support the arguments that F-flute box provides better packaging attributes …
Frames Ate The Art, Frames Are The Art, The Camera Is The Art, The Text Is The Art, The Thing Is The Art, Art Is The Art, Phil Goldwhite
Frames Ate The Art, Frames Are The Art, The Camera Is The Art, The Text Is The Art, The Thing Is The Art, Art Is The Art, Phil Goldwhite
Theses
Not provided.
Speech Discrimination Using Wavelets And Zero Crossing Counting, Craig Martin
Speech Discrimination Using Wavelets And Zero Crossing Counting, Craig Martin
Theses
Not provided.
Ccd Photometry And The Stellar Content Of The Central Region Of Ic 1805, David Bretz
Ccd Photometry And The Stellar Content Of The Central Region Of Ic 1805, David Bretz
Theses
Images of the central region of the open cluster IC 1805 were made with a 2033 x 2044 Kodak CCD imager using broad-band filters corresponding closely to the standard B, V, R, I, system of Johnson. Calibrated magnitudes were measured for 136 stars in the cluster, and temperatures and masses were estimated for 115 of these. A mass function was derived as defined by Scalo (1986) and is compared with an earlier determination for this cluster. The mass function also is compared with that of a similar star-forming region in Cygnus and with the initial mass function of field stars. …
Illustrated Lexicon Of Technical Terms Used In The Condition Report Of Photographs, Patricia Acuña Castrellon
Illustrated Lexicon Of Technical Terms Used In The Condition Report Of Photographs, Patricia Acuña Castrellon
Theses
Not provided.
A Question Of Balance: Constructing A Mobile Software Simulator, Michael Wulf Axelrod
A Question Of Balance: Constructing A Mobile Software Simulator, Michael Wulf Axelrod
Theses
Initial inspiration for this project comes from the world of moving sculptures called mobiles. Artists such as Alexander Calder have pioneered the way by showing the world that mobiles can do more than entertain infants. This project brings the world of moving scultures to the computer and extends the artistic role mobiles can play for the average person. The primary objective of this project was to design and implement a tool to create and visualize simple mobiles. The application was to be flexible and easy to use. So easy in fact that a child should be able to construct a …
Click! Folie A Deux, Silvina Manrique
"Ask Not What Your Country Can Do For You..." Understanding Veterans Of The Vietnam Era, Tom Hussey
"Ask Not What Your Country Can Do For You..." Understanding Veterans Of The Vietnam Era, Tom Hussey
Theses
Not provided.
Statistical Characterization For 3-D Two-Component Tissue Models Using An Extended Microbeam Technique, Dongli Yang
Statistical Characterization For 3-D Two-Component Tissue Models Using An Extended Microbeam Technique, Dongli Yang
Theses
None provided.
Mental Pictures Drawings And Objects, Deborah Rieders
Principles And Simulation Of Straight Boomerang, Nicolas Restrepo
Principles And Simulation Of Straight Boomerang, Nicolas Restrepo
Theses
There has been a lot of research done on the regular boomerang but little or none has ever been done on the straight boomerang. This not so popular toy does behave as a boomerang but the physics governing its flight are very different from those governing the regular boomerang's flight. In order to understand what makes the straight boomerang come back, high speed photography was used. It was concluded that the autorotation phenomenon played an important role during the flight. A mathematical model was then developed and the flight dynamics of the boomerang incorporating its actual behavior was simulated using …
Overcoming Limitations, Debra Barton
Where The Gods Meet, Felix Blanco
Live It! - An Interactive Non-Linear Adventure, Gedeon Maheux, Talos Tsui
Live It! - An Interactive Non-Linear Adventure, Gedeon Maheux, Talos Tsui
Theses
None provided.
Interactive Electronic Publishing, Jill Timm
The Importance Of The Interface Design In A Foreign Language Teaching Program, Anne Brose
The Importance Of The Interface Design In A Foreign Language Teaching Program, Anne Brose
Theses
None provided.
Seedling Emergence And Growth Of Mangrove Avicennia Marina (Forssk.) Vierh. Under Different Environmental Conditions In The United Arab Emirates, Abdulrazzaq Abdulla Abdulla Anwahi
Seedling Emergence And Growth Of Mangrove Avicennia Marina (Forssk.) Vierh. Under Different Environmental Conditions In The United Arab Emirates, Abdulrazzaq Abdulla Abdulla Anwahi
Theses
Seedling emergence, survival and growth of gray mangrove Avicennia marina (Forssk.) vierh. were studied in relation to different environmental factors through a series of experiments conducted at indoor low temperature, outdoor shaded and field areas at the Marine Resources Research Center, Umm Al Qaiwain. No emergence occurred when seeds were sowed in salinities equal to or higher than 60 ppt. Seedling survival rate decreased with increasing salinity at both indoor and outdoor experimental sites . Faster seedling growth rates were observed under outdoor shaded conditions than under indoor low temperatures. Results of field studies on a sloping beach indicated that …
Illness Behavior In Meniere's Disease Patients, Dianne Riesenmy
Illness Behavior In Meniere's Disease Patients, Dianne Riesenmy
Theses
In order to determine whether or not vertiginous and nonvertiginous Meniere's disease patients differ in regard to certain emotional and psychosocial attitudes, ideas, affects, and attributions related to illness behavior, 30 Meniere's disease patients (16 vertiginous; 14 nonvertiginous) completed the Illness Behavior Questionnaire (IBO) either at a Meniere's support group meeting or through the mail. Comparison of sample mean scores revealed that the vertiginous group showed greater hypochondriasis and affective disturbance than did the nonvertiginous group. The nonvertiginous group demonstrated greater denial of life stressors not related to illness and greater psychological (rather than somatic) perception. The same group showed …
Excimer Laser Microlithography At 193 Nm, Bruce W. Smith
A Business Perspective Of Commercial Animation, Nadja Sherelis
A Study To Determine The Relationship Between Emulsification And Tack Of Offset Lithographic Inks, Naruchart Boonkuernoon
A Study To Determine The Relationship Between Emulsification And Tack Of Offset Lithographic Inks, Naruchart Boonkuernoon
Theses
In offset lithography, ink has been shown to pickup significant quantities of fountain solution as emulsified droplets. Good printability of lithographic inks is dependent on the balance between the flow of ink and water (fountain solution). Water pickup of ink is directly related to emulsification capacity. Emulsification must be controlled by using the correct fountain solution and proper surface tension value of fountain solution. If inks do not properly emulsify, ink tack may vary on the press during printing. Ink tack is expected to strongly influence printability and runnability of offset lithographic inks. Tack measurement is used as a production …
Designing A Typeface, Margaret Luise Koschembahr
Designing A Typeface, Margaret Luise Koschembahr
Theses
The purpose of this project was to design a typeface, using digital methods,and in so doing to explore the use of current type design software. In this project, letterforms that were originally produced by hand with a pen were translated into electronic data, taking the final form of a digital typeface. Photographic images of manuscript letterforms were enlarged; from the enlarged letterforms hand-rendered outlines were created. These outlines were scanned electronically and imported into a type design software program. Digital outlines of each character were created, from which a PostScript typeface was generated and printed. The result of the project …
An Investigation Into The Development Of An Interactive Archival Catalog Of Art Within The Rochester Institute Of Technology, Jill Clayman
An Investigation Into The Development Of An Interactive Archival Catalog Of Art Within The Rochester Institute Of Technology, Jill Clayman
Theses
RIT has no complete visual and /or factual catalog of the pieces of art presently displayed in public areas. Many pieces of work on campus are in desperate need of repair as well as plaques to identify the work. Visions, the only known bound record of a selection of artwork on the Henrietta campus, was produced by the RIT Communications Office in 1975. The Archives in Wallace Memorial Library have a small collection of slides of various artworks, however, many works of art are currently missing. Several valuable pieces of work were lost in the move from the city campus …
Near Field Scanning Luminescence And Photothermal Microscopy, Jon Rogers
Near Field Scanning Luminescence And Photothermal Microscopy, Jon Rogers
Theses
A near field optical scanning probe microscope with force regulation is presented. The microscope force regulation uses a differential interferometer for monitoring the tip frequency while the tip provides a sub-wavelength aperture providing a system which simultaneously records topographical information (by the force microscope) and an optical image. The flexibility of the system is evident in the specific applications pursued in this research. Simultaneous force and luminescence images derived from the investigation of porous silicon are presented. We observed variation in luminescence over sub-micron distances. Furthermore, variation in the spectral distribution of small particles of porous silicon was also observed. …
A Comparison Between Waterless Lithography And Conventional Lithography, Chanassa Pichitgarnka
A Comparison Between Waterless Lithography And Conventional Lithography, Chanassa Pichitgarnka
Theses
Waterless lithography is one of the printing processes that was developed around 1968. It has a strong impact in the current printing industry. Like other printing processes, waterless lithography has both advantages and disadvantages. It is said that waterless lithography can print with more consistency and less dot gain than conventional lithography. However, it has one significant disadvantage, currently there is only one waterless lithographic plate supplier in the industry. There is very little quantitative data describing the waterless lithographic process to support the arguments that waterless lithography prints with more consistency and less dot gain. There is even a …
Tissue Parameter Determination With Mri In The Presence Of Imperfect Radiofrequency Pulses, Xing Li
Tissue Parameter Determination With Mri In The Presence Of Imperfect Radiofrequency Pulses, Xing Li
Theses
Magnetic resonance imaging has the major advantage over other medical imaging modalities in that it can provide superb soft tissue contrast. The contrast in a magnetic resonance image is determined by intrinsic tissue parameters such as spin-lattice relaxation time T1, spin-spin relaxation time T2, and spin density p. These tissue parameters can be extracted from a series of images obtained with appropriately designed pulse sequences, and be used in tissue characterization, classification, etc.. The accuracy of tissue parameter determination, however, is affected by a number of factors, one of which is the inhomogeneity of the radio-frequency (RF) electromagnetic field. In …
Design And Fabrication Of Lateral High Power Devices For Power Integrated Circuits Applications, Raymond Talacka
Design And Fabrication Of Lateral High Power Devices For Power Integrated Circuits Applications, Raymond Talacka
Theses
The incorporation of high power devices on the same chip as that of the circuitry controlling the high power device has been shown to provide several major advantages over discrete and multichip module designs. The major focus of this work is the development of lateral high power devices that are compatible with R.I.T.'s low power CMOS process. The thrust of this study is to evaluate the feasibility of fabricating Power Integrated Circuits at R.I.T's semiconductor die manufacturing laboratory. As part of the development, several types of high power devices were investigated and the Power MOSFET and IGBT were chosen to …