Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (621)
- Arts and Humanities (401)
- Physical Sciences and Mathematics (318)
- Business (295)
- Social and Behavioral Sciences (222)
-
- Life Sciences (199)
- Education (186)
- Medicine and Health Sciences (170)
- Chemical Engineering (164)
- Electrical and Computer Engineering (145)
- Electrical and Electronics (136)
- Environmental Sciences (133)
- Art and Design (101)
- Computer Sciences (96)
- Civil and Environmental Engineering (71)
- Mechanical Engineering (70)
- Marketing (68)
- Biomedical Engineering and Bioengineering (65)
- History of Art, Architecture, and Archaeology (65)
- Communication (64)
- Biology (50)
- Environmental Engineering (43)
- Microbiology (43)
- Chemistry (40)
- Materials Science and Engineering (38)
- Business Administration, Management, and Operations (33)
- Curriculum and Instruction (32)
- Psychology (32)
- Operations Research, Systems Engineering and Industrial Engineering (31)
- Public Relations and Advertising (31)
- Institution
-
- Rochester Institute of Technology (7572)
- New Jersey Institute of Technology (673)
- Lindenwood University (645)
- Munster Technological University (318)
- United Arab Emirates University (316)
-
- The University of Notre Dame Australia (151)
- University of Alabama in Huntsville (126)
- Southern Illinois University Carbondale (119)
- North Carolina Agricultural and Technical State University (103)
- University of Missouri, St. Louis (94)
- Seton Hall University (31)
- Jacksonville State University (30)
- Technological University Dublin (26)
- University of San Diego (21)
- University of North Alabama (20)
- Sigma Theta Tau International Honor Society of Nursing (14)
- Zayed University (9)
- St. Mary's University (3)
- Edith Cowan University (1)
- Keyword
-
- Thesis (405)
- None provided (374)
- Photography (252)
- Art (152)
- Printing (142)
-
- Mechanical engineering (135)
- Graphic design (132)
- Imaging science (129)
- Design (122)
- Painting (116)
- Sculpture (115)
- Animation (103)
- Fine art (92)
- Social media (74)
- Computer engineering (72)
- Chemistry (71)
- Machine learning (69)
- Packaging science (67)
- Education (58)
- Film (58)
- Computer graphics (55)
- Communication (54)
- Electrical engineering (53)
- Artistic photography (52)
- Furniture design (51)
- Marketing (50)
- Color (49)
- Printmaking (48)
- Typography (48)
- Ceramics (47)
- Publication Year
- Publication Type
Articles 6931 - 6960 of 10272
Full-Text Articles in Entire DC Network
A Practical Implementation Of High-Speed Communication Using Digital Subscriber Line Technology, Todd Engle
A Practical Implementation Of High-Speed Communication Using Digital Subscriber Line Technology, Todd Engle
Theses
This thesis creates a plan for the practical implementation of high-speed communication for residences and businesses. By implementing low-cost, high-speed communication on a global scale, tremendous benefits can occur in areas such as Internet communication, interactive multimedia, telecommuting, and distance learning. Despite several successful trials of various high-speed communication technologies, many barriers remain before deployment can occur to the general public. This thesis proposes a plan to bridge the gap between theoretical test studies and global implementation. This thesis evaluates three communication systems as potential solutions for high-speed communication and selects one system as the solution. The three candidate systems …
Multidimensional Subset Sum Problem, Vladimir Kolesnikov
Multidimensional Subset Sum Problem, Vladimir Kolesnikov
Theses
This thesis explores new modifications to the successful LLL approach to solving the Subset Sum problem. This work is an optimization of the matrix representation of an instance. Traditionally, the basis matrix contained only one column with set elements and the sum. In this thesis we suggest having several data columns (thus introducing multidimensionality). This allows us to reduce the size of coulmn entries which changes the complexity of the problem. Splitting the data into multiple columns greatly simplifies the task of solving the Subset Sum problem. However, other problems arise when we try to generate multiple columns. Here we …
A Comparison Of Pattern Classification Techniques For Orienting Chest X-Rays, Martin R. Hoffmann
A Comparison Of Pattern Classification Techniques For Orienting Chest X-Rays, Martin R. Hoffmann
Theses
The problem of orienting digital images of chest x-rays, which were captured at some multiple of 90 degrees from the true orientation, is a typical pattern classification problem. In this case, the solution to the problem must assign an instance of a digital image to one of four classes, where each class corresponds to one of the four possible orientations. A large number of techniques are available for developing a pattern classifier. Some of these techniques are characterized by independent variables whose values are difficult to relate back to the problem being solved. If a technique is highly sensitive to …
Application Of Statistical Techniques In The Evaluation Of Packaging Processes, Mark Harris
Application Of Statistical Techniques In The Evaluation Of Packaging Processes, Mark Harris
Theses
Production processes for packaging components frequently are subject to variation that can result in the manufacture of unusable components. Significant exposure to both the component supplier and the customer is incurred when the production process capability is not established prior to the start of production. "Application of Statistical Techniques in the Evaluation of Packaging Processes" presents a program of statistical tests for problem resolution as well as for the qualification of a new process. Training of manufacturing personnel in the fundamentals is a necessary element to accurately apply and interpret the results. The successful use of statistics requires knowledge of …
Design Of An Automatic Postal Service System, Chia-Chuan Lin
Analyisis Of The Small Parcel Express Carrier Distribuion Envirnonment For Drop Height Statistical Referencing And Development Of Laboratory Test Specifications, Scott Wilson
Theses
The distribution environment is an ever-changing industry. Test specifications used in laboratory testing to protect product transported through various channels of this environment require constant evaluation. A study to monitor the manual handling of the small parcel express carrier distribution environment was undertaken to quantify the dynamics experienced and better ensure confidence of the parameters for laboratory test specifications. Two package designs, differing in weight and size, were analyzed in 158 trips with and without the use of handholds. Significant drop heights, quantity of drops and orientations of these drops were collected using environmental recorders. The data was analyzed statistically …
Interactive Multimedia: Defining A Place In History, Erika Sears
Moisture Gain Of Biscuits In Hermetically-Sealed Packages Versus Non-Hermetically-Sealed Packages, Amran Alabakan
Moisture Gain Of Biscuits In Hermetically-Sealed Packages Versus Non-Hermetically-Sealed Packages, Amran Alabakan
Theses
The objective of this study was to examine the affect of hermetic sealing on extending the shelf life of a biscuit product. Hermetically sealed packages were compared with non-hermetically-sealed packages received from the biscuit manufacturer. The package materials were the same so the only variable was the hermetic integrity of the package. A pressure test was conducted to determine the hermetic integrity of the package samples. The maximum moisture content that the biscuits gained before they were considered spoiled was then determined. Moisture gain of biscuit products kept in a 100% RH environment was monitored by recording the changes in …
Vision Assisted Robotic Assembly Of Miniature Parts, Guy Vottis
Vision Assisted Robotic Assembly Of Miniature Parts, Guy Vottis
Theses
The objective of this thesis was to design and build a work cell that utilized a robotic vision system to assemble a micro motor. The work cell design consisted of an Adept SCARA robot with a vision system, end-of-arm tooling, and a combination work surface/ lighting system. On-screen vision tools were applied to images of the parts, both binary and gray scale, to assist in accurate part recognition. Using these images, retained by the vision system as reference, the robotic vision software was programmed to enable the robot to pick up the various parts in random positions within the cell …
Vibration Analysis Of A Diesel Engine Mounted On A Test Chassis, Quan Le
Vibration Analysis Of A Diesel Engine Mounted On A Test Chassis, Quan Le
Theses
This paper presents vibration analyses performed on a diesel engine mounted on a test chassis. Four methods were used in analyzing engine vibrations on the test chassis. Static engine vibration analysis was an experimental method used to identify natural engine frequencies and modes shapes on the test chassis. In this technique, the non-running engine was excited by an external input force. A running engine analysis was used to determine engine resonance frequencies. In this analysis, the engine was excited by the running dynamics of its components. Engine speeds at those resonance frequencies were also determined in this test. Thirdly, lumped …
Mechanics Of A Shear Cutting Process, Stephen Meissner
Mechanics Of A Shear Cutting Process, Stephen Meissner
Theses
A unique laboratory device, the Laboratory Shear, has been designed and built to simulate and examine the shear angle cutting process, which is the predominant method used in many cutting operations. The device is capable of force and velocity measurements of the shear angle cutting process with the abilities to vary cutting speed, knife preload, and blade geometry. The dimensions of the device are such that mobility to and from conditioning rooms in the laboratory environment are not limited. Assembly and disassembly ease as well as automatic versus manual operation options were incorporated for greater experimental flexibility. The device has …
Design And Process Development Of An Integrated Phosphor Field Emission Device, Robert Langley
Design And Process Development Of An Integrated Phosphor Field Emission Device, Robert Langley
Theses
An Integrated Phosphor Field Emission Device (IPFED) has been fabricated at the Rochester Institute of Technology for the purpose of developing a new, flat panel display technology. The device incorporates a new, cathodoluminescent, thin film phosphor (Ta2Zn308) developed at RIT as an anode. A cathode and control gate, both consisting of a thin layer of molybdenum are also included in the device. Electrons are tunneled from the cathode via Fowler-Nordheim tunneling to energetically strike the phosphor anode. The anode then produces light, via cathodoluminescence, which the human eye can detect. Standard semiconductor processes were utilized in the fabrication of the …
Student Attitudes Toward Individuals With Disabilities: Inclusive Versus Traditional Classrooms In Elementary School, Heather Young
Student Attitudes Toward Individuals With Disabilities: Inclusive Versus Traditional Classrooms In Elementary School, Heather Young
Theses
In recent years, many schools have begun to include students with disabilities in general education classrooms. Studies on "inclusion," have shown several positive effects for students with and without disabilities. This study examines the self-reported attitudes of 185 elementary school students in inclusive and traditional classrooms, as measured by the Scale of Children's Attitudes Toward Exceptionalities (SCATE). Self-reported attitudes and experiences of general education teachers were also assessed using a survey developed by the researcher. Although statistically significant relationships were found on the SCATE, these were not logical or conclusive. Results of the teacher surveys indicate that teachers of inclusive …
Aluminum Nitride Films By Reactive Sputtering, Alvin Randolph
Aluminum Nitride Films By Reactive Sputtering, Alvin Randolph
Theses
Aluminum nitride thin films (-1000 A) have been deposited on silicon substrate by re active sputtering using Al target in 1 : 1 Ar:N2 environment. The atomic force microscopy examination revealed continuous microcrystalline film structure. The Auger electron spectroscopic analysis shows the presence of oxygen in the films. The annealing at 850 C in nitrogen is found to cause recrystallinization and, by FTIR analysis, further oxidation of the films. The films can be characterized as lossy dielectrics with relative permittivity ~ 10, higher than the bulk value of 8.9. Annealing the films is found to reduce anion vacancies and improve …
Reflections On Wood, Katherine Park
An Investigation Of Air Side Heat Transfer Enhancement In Multi-Louver Fins Within Automotive Compact Heat Exchangers, Patrick Fix
An Investigation Of Air Side Heat Transfer Enhancement In Multi-Louver Fins Within Automotive Compact Heat Exchangers, Patrick Fix
Theses
The multi-louver fin is the primary geometric configuration used to enhance the air-side heat transfer characteristics of automotive heat exchangers today. This work presents an investigation into the effects of multi-louver fins on the air-side Stanton number (St) and Fanning friction factor (f) characteristics of a heat exchanger. Experimental St data ranging between 0.0095 and 0.065 and/ data ranging between 0.04 and 0.55 are reported for louver pitch based Reynolds numbers ranging between 30 and 4000. Brazed core test samples with multi-louver fins are utilized to complete this study. Previous investigators have correlated the air-side St and/ to geometric parameters …
Scatterbrain, James Dingilian
A Study Utilizing Halftone Based Digital Proofing Systems In The Flexographic Printing Process, William Hanna
A Study Utilizing Halftone Based Digital Proofing Systems In The Flexographic Printing Process, William Hanna
Theses
Contract proofing for printing has been traditionally done by press proofing. This is costly and wasteful, not just in terms of equipment and labor but also in terms of expendables. The advent of off-press proofing was greeted with some degree of uncertainty by the printing industry. With press proofing, the proof was literally a preview of what would happen on a press. The press proof, although often printed on a different press, generally used the same type of inks, plates and substrate that would characterize the final print. With offpress proofing, printers were comparing apples to oranges; instead of comparing …
Evaluation Of Carcinogenic Potential Of Benzo(Α)Pyrene And Dimethylbenzanthracene In Mouse Leukemic Cells, Mohammad Sharif Sultan Al Ulama
Evaluation Of Carcinogenic Potential Of Benzo(Α)Pyrene And Dimethylbenzanthracene In Mouse Leukemic Cells, Mohammad Sharif Sultan Al Ulama
Theses
The carcinogenic potential of benzo[α]pyrene (B(α)P) and dimethylbenzanthracene (DMBA) was tested using mouse leukemic cell lines L-5178 R and S types in tissue culture condition. It was found that B(α)P and DMBA inhibited the synthesis of DNA of R and S types of cells to about 34%, at 10 mM concentration. While B(α)P and DMBA did not show any acute toxic effect on mouse cell line Rand S types at 1 mM concentration separately. Both R and S types of cells were allowed to grow for several days in the presence of 1 mM DMBA and B(α)P respectively. Several independent …
A Better Environment For Disabled Children, Hyun-Sook Lee
Art As Environment, Victoria Moore
Simplicity, Angela Stickell
Simplicity, Angela Stickell
Theses
My thesis work is intended to be part of an ongoing polemic concerning the value of modernism. Modernism occurred at a time in history when craft, industrial design and architectural design were enjoying reciprocal influences. Many architects were translating their architectural value systems into object designs, many of which became landmarks of twentieth century design. This crossover between the fields, which is evidenced still today, produced a rich theoretic tradition from which to draw. I am convinced that architectural design and object design are invariably linked and this is reflected in my thesis works as well as in my thesis …
Two-Dimensional Spectrum Estimation Using The Radon Transform, Jennifer Wideman
Two-Dimensional Spectrum Estimation Using The Radon Transform, Jennifer Wideman
Theses
An alternative approach to two-dimensional power spectrum estimation incorporating the Radon transform in conjunction with each of the one-dimensional periodogram, Blackman-Tukey, and Autoregressive parameter estimation algorithms is examined. The Radon transform is used to express a two-dimensional data set in terms of its projections onto a set of one-dimensional radial lines, effectively reducing the two-dimensional estimation problem to a series of one-dimensional problems. The resulting two-dimensional power spectrum estimates are compared to the known power spectra for a variety of data types. The Radon transform approach combined with autoregressive parameter estimation can provide a high-resolution power spectrum estimate, effectively surpassing …
A Nonprofit's Guide To Internally-Planned Successful Print Communications, Joseph Wilson
A Nonprofit's Guide To Internally-Planned Successful Print Communications, Joseph Wilson
Theses
Nonprofit institutions, sans a large budget allocated towards design, publications production and printing, suffer from a lack of effective print communications. Even within the classification of "nonprofit," a distinction can be made between successful groups and struggling ones. To further compound the matter, nonprofit groups, beyond just a deficit of funds, lack a graphic artist's understanding of how to assemble, produce and intelligently purchase print communications. It is no wonder then, that the struggling nonprofit group finds itself caught in a frustrating cycle. They need, desperately, to get their word out in order to raise funds; yet they lack the …
On-Screen Electronic Forms Design: Graphical Elements Vs. Straight Data Entry Formats, Karen Preston
On-Screen Electronic Forms Design: Graphical Elements Vs. Straight Data Entry Formats, Karen Preston
Theses
Electronic forms is an emerging market that is being incorporated into daily use in many corporations and small businesses. In the transition from paper forms to electronic forms many users are merely recreating the paper forms digitally to create an exact replica on screen. This is being done through the utilization of page layout programs such as QuarkXpress and PageMaker as well as through the aid of electronic forms software programs available today. These software programs aid the user with forms design, often providing templates of forms that are in a graphical format containing rules, logos, and other graphically embellishing …
A Study Of The Relationship Between Optical Dot Gain And Mechanical Dot Gain Of Am And Fm Halftones, Eva Gronberg
A Study Of The Relationship Between Optical Dot Gain And Mechanical Dot Gain Of Am And Fm Halftones, Eva Gronberg
Theses
FM screening differs from conventional screening by the absence of screen ruling and the use of small micro dots to represent the tonal values in an image. FM screens have a high dot gain which is comparable to the dot gain of very fine conventional screens. Some tests showed that FM screens are more stable on press compared to AM screens, that is, they experience less variation in dot gain when the solid ink density is increasing. The major questions of this study were: 1) What is the relationship between mechanical and optical dot gain for FM screens? Is the …
Image Quality Metrics And Optimum Focus Criteria For Visual Optical Systems, Xiaoxue Cheng
Image Quality Metrics And Optimum Focus Criteria For Visual Optical Systems, Xiaoxue Cheng
Theses
Image quality metrics for visual instruments were examined in terms of their through focus behavior in the presence of various aberrations, and their correlations with available subjective performance data. The contrast sensitivity measurements were performed using rotationally symmetric, variable contrast difference-of-gaussians (DOG) targets, viewed through specially designed telescopes that presented various amounts of monochromatic aberrations. Then the contrast sensitivity ratios were correlated with the image quality metrics of the telescopes. The results show that an appropriately defined integral of the instrument-observer MTF (called MTFa) correlates well with subjective performance in most cases and predicts the optimum focus best; the radius …
Synthesis And Characterization Of Thermotropic Liquid Crystalline Poly(Ester-Imide)S, Jinseo Ahn
Synthesis And Characterization Of Thermotropic Liquid Crystalline Poly(Ester-Imide)S, Jinseo Ahn
Theses
A series of novel poly(ester-imide)s were prepared by the reactions of 6,6'-(3,3',4,4'-benzophenonetetracarboxylic diimido)-bis-hexanoic acid with various aliphatic diols containing four to ten methylene groups using a melt polymerization technique. Besides these, a novel poly(esterimide) was synthesized by the reaction of 1 1 , 1 1 '-(3,3', 4,4'- benzophenonetetracarboxylic diimido)-bis-undecanoic acid with 1 ,6-hexanediol employing the same technique. Two kinds of monomers containing diimide diacids were prepared by the reactions of 3,3',4,4'-benzophenonetetracarboxylic dianhydride with respective 6-aminocaproic acid and 1 1 -aminoundecanoic acid. A total of eight poly(ester-imide)s, PEIMs, were characterized for liquid crystalline properties. The solubility, viscosity, infrared spectroscopy, thermal analyses …
Catalyzed Additions To Alkene Double Bonds: (I) Fumarase-Catalyzed Hydration Of Alkene Double Bonds (Ii) Alumina-Catalyzed Hydrochlorination Of Alkene Double Bonds, Charles Francavilla
Catalyzed Additions To Alkene Double Bonds: (I) Fumarase-Catalyzed Hydration Of Alkene Double Bonds (Ii) Alumina-Catalyzed Hydrochlorination Of Alkene Double Bonds, Charles Francavilla
Theses
The stereospecific hydration of (5)-malate to fumarate, catalyzed by fumarase, was extensively analyzed by NMR. The NMR techniques employed were one dimensional 2H and NOE Difference, and two dimensional ^^H COSY. Various potentional substrates were tried for fumarase-promoted hydration with no sucesss. It was concluded that mesaconate is possibly the largest molecule that can fit into the active site of fumarase in the correct orientation for hydration to occur. Thionyl chloride and appropriately prepared alumina was found to promote the addition of HC1 to norbornadiene ( I ), resulting in71%(+l%) exo-5-chloronorbornene ( II ) and 29% 3-chloronortricyclene ( HI ) …
Ararat, Leah Bosworth
Ararat, Leah Bosworth
Theses
My goals for my thesis movie "Ararat" were simple: to combine 2-D and 3-D imagery, and to make people laugh. From those points, I touched off a world of complex issues.