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Articles 6751 - 6780 of 10272
Full-Text Articles in Entire DC Network
The Birth Sign Library, Chun-Hua Liu
If Walls Could Talk..., Jessica Kleinerman
The Caid Information System, In-Hwan Choi
Personality In Furniture, Jennifer Borg
Evaluation Of Two Applications Of Spectral Mixing Models To Image Fusion, Gary Robinson
Evaluation Of Two Applications Of Spectral Mixing Models To Image Fusion, Gary Robinson
Theses
None provided.
Family Environment: Seen Through The Eyes Of Adolescents Labeled As Emotionally Disturbed, Jon Koeng
Family Environment: Seen Through The Eyes Of Adolescents Labeled As Emotionally Disturbed, Jon Koeng
Theses
Emotionally disturbed adolescent's perceptions of their family environments were assessed using the Family Environment Scale (FES)(Moos, 1994). The sample consisted of 27 students classified as emotionally disturbed according to the New York State Part 200 guidelines for special education, ranging in age from fourteen to eighteen, and falling into five family types: two-parent intact families, step families, extended families, single parent families, and other. Results indicate that subjects differ significantly from the FES normative sample on six often variables including Cohesion, Expression, Conflict, Achievement-Orientation, Intellectual-Cultural Orientation, and Moral-Religious Orientation. Findings suggest that family relationships and personal growth could be important …
The Role Of (Alpha)S1-Casein In The Formation Of The Casein Micelle, Chinchi Chen
The Role Of (Alpha)S1-Casein In The Formation Of The Casein Micelle, Chinchi Chen
Theses
Caseins are the major protein components of milk. Bovine caseins have been the most thoroughly studied and serve as the principal area of research for the dairy industry. Bovine caseins are composed of several major polypeptide families, (alpha)s1-, (alpha)s1-, (beta)- and K-caseins. The (alpha)s1-caseins constitute 30.6% of bovine milk protein. The distribution of polar and apolar amino acids within each (alpha)s1 -casein molecule tends to be asymmetric, yielding protein molecules with hydrophobic and hydrophilic domains that give the caseins excellent functional properties. Moreover, the phosphoserine groups of (alpha)s1 -casein associate with calcium phosphate complexes in milk to form loosely ordered …
Lateral Guidance Control Of A Low-Speed Vehicle, Haydar Sahin
Lateral Guidance Control Of A Low-Speed Vehicle, Haydar Sahin
Theses
This thesis examines the lateral guidance control of a low-speed vehicle. Several topics are studied in detail: (1) vehicle error-state model for lateral guidance based on Ackerman steering and (2) lateral guidance control of a low-speed vehicle using fuzzy logic. Independently written research papers address each topic. The first paper presents a second order "error-state" kinematic model based on Ackerman steering appropriate for studying the lateral guidance control of low-speed vehicles traversing on roads of constant curvature. Lateral guidance control of vehicles is of great interest to the Advanced Vehicle Control Systems (AVCS) Division of the Intelligent Transportation System (ITS) …
Design, Development, And Performance Of A Transient Heat Transfer Resistance Fouling Monitor, David Gruszczynski
Design, Development, And Performance Of A Transient Heat Transfer Resistance Fouling Monitor, David Gruszczynski
Theses
Fouling can be defined as the formation of deposits on heat transfer surfaces that impede heat transfer and increase the resistance to fluid flow. The presence of fouling deposits result in the loss of equipment efficiency, the loss of equipment utilization, the requirement of additional capital expenditures, and adds the cost of cleaning to a process. The cost of fouling to all industries using heat exchangers in the United States was estimated to be 2 x 10+1 dollars per year in 1995. Thus, the control or mitigation of fouling is critical to all industries which employ heat transfer equipment. In …
Synthesis And Charaterization Of Zirconium Complex Pendent Polymides, Huixiong Dai
Synthesis And Charaterization Of Zirconium Complex Pendent Polymides, Huixiong Dai
Theses
Poly(amic acid)s (PAAs) of pyromellitic dianhydride (PMDA), 4, 4'-oxydianiline (ODA), and mellitic dianhydride (MDA), PAA(PMDA-ODA-MDA), and PAAs of 4,4'- oxydiphthalic anhydride (ODPA), ODA, and MDA, PAA(ODPA-ODA-MDA), were synthesized by solution polycondensation with different anhydrides ratios. Their zirconium containing polyimides, which are atomic oxygen resistant materials with potential applications on the International Space Station, were prepared by introducing a mixed ligand zirconium complex (4-amino-N,N'-disalicylidene-l,2-phenylenediaminato) (N,N,-disalicylidene-l,2-phenylenediaminato)zirconium(IV), Zr(adsp)(dsp), onto the polymer chain as a pendant group. The attachment was accomplished by the nucleophilic substitution between the amino group in the complex and the anhydride carbonyl group in the polymer chain formed by the …
Type In Motion: Motion Of Typography And Its Effectiveness In Communication, Anne Tolly-Wamsley
Type In Motion: Motion Of Typography And Its Effectiveness In Communication, Anne Tolly-Wamsley
Theses
None provided.
Materials For Attenuated Phase Mask Application At 193 Nm, Shahid Butt
Materials For Attenuated Phase Mask Application At 193 Nm, Shahid Butt
Theses
The electronic revolution is driven by the circuits and devices fabricated on silicon. Since the invention of the integrated circuit some thirty years ago the circuit complexity has increased manifold. A large portion of this increase can be attributed to the ability to print smaller features. The process of printing these small features is termed lithography. The ability to develop new lithographic techniques will determine to a large extent whether the semiconductor industry can maintain its rapid growth rate. Currently lithographic techniques that utilize 193 nm radiation are being developed to replace the 248 nm based lithographic processes. The trend …
Synthetic Image Generation Of Factory Stack And Water Cooling Tower Plumes, S. Didi Kuo
Synthetic Image Generation Of Factory Stack And Water Cooling Tower Plumes, S. Didi Kuo
Theses
Remote sensing of cooling tower and factory stack plumes may provide unique information on the constituents of the plume. Potential information of the power generated by the plant or the chemical composition of the factory products may be gathered from thermal emission and absorption in the infrared band, or from scattering of light in the visible band. A new model for generating synthetic images of plumes has been developed using DIRSIG, a radiometrically based ray-tracing code. Existing models that determine the characteristics of the plume (constituents, concentration, particulate sizing, and temperature) are used to construct the plume in DIRSIG. The …
Development Of A Dynamic Model For A Two Stage Servovalve Amplifier Line And Orifice, David Cook
Development Of A Dynamic Model For A Two Stage Servovalve Amplifier Line And Orifice, David Cook
Theses
Electrohydraulic servovalves are used in a variety of industrial, military, and aerospace applications. For some of these applications the servovalve must meet stringent dynamic performance criteria while under the influence of external disturbances. The most common of these external disturbances is vibration. Vibration can not only have an affect on valve performance, but can also affect valve stability. This thesis deals with the development of a dynamic model of the amplifier lines and line orifice of a two stage servovalve. The amplifier lines are thought to affect the stability of two stage servovalves under vibration. The amplifier lines are the …
Synthesis And Characterization Of Chiral Imidazolinones, Huang-Ming Philip Chen
Synthesis And Characterization Of Chiral Imidazolinones, Huang-Ming Philip Chen
Theses
The commercial application of imidazolinone derivatives can be found in herbicides where they inhibit acetolactate synthase (ALS; EC 4.1.3.18; also known as acetohydroxyacid synthase). The imidazolinone class of herbicides have the advantage of long term activity and low mammalian toxicity. Another application of imidazolinone derivatives is in the preparation of a-alkyl-amino acids. The objective of this investigation was to explore the asymmetric synthesis of imidazolinones through the condensation of a variety of imidate ethyl esters and ccamino acids. Furthermore, it was of interest to characterize the chiral properties of a series of imidazolinone derivatives for future investigation. In this research …
Masks, Davya Brody
Masks, Davya Brody
Theses
'Masks' is a body of work which explores the concept of mask in a variety of ways. Masks have been around since prehistoric times. Their use and development has a rich visual and cultural history, "masks' draws from this history both for inspiration and for direction. The other concept of mask investigated in this body of work, is mask-as-metaphor. The word "mask" does not simply mean an object which covers one's face. It also implies blocking something out, covering something up or hiding behind something. The mask of a building, body armor, the way we want things to be seen, …
A Sustainable Kitchen, Hyeon-Gyeong Yun
Assessment Of Aggression In Children: The Use Of Human Figure Drawings, Jennifer Underwood
Assessment Of Aggression In Children: The Use Of Human Figure Drawings, Jennifer Underwood
Theses
The purpose of this study was to assess the validity of six characteristics of drawings cited in the literature as indicators of aggression. The study was designed to compare the drawings of students to their rated behavior on the Aggression sub-scale of the Child Behavior Checklist-Youth Self Report form. It was hypothesized, based upon past research, that students who rated their behavior as aggressive would demonstrate a significant number of the aggressive characteristics in their drawings. One-hundred seventy, eighth grade students participated in this study by completing the checklist and drawing a person. The results obtained did not support the …
The Impact Of The Duration Of Special Education On The Self-Concepts Of Students With Learning Disablities In General Education Settings, Theresa Horning
The Impact Of The Duration Of Special Education On The Self-Concepts Of Students With Learning Disablities In General Education Settings, Theresa Horning
Theses
This study was performed to determine whether the length of time students with learning disabilities received special education services correlated with their self-concepts. The Piers-Harris Children's Self-Concept Scale was given to 23 elementary school students who were classified as learning disabled according to New York State guidelines. These students ranged in age from eight to thirteen and were in grades three through six. They attended a small, rural, upstate New York school district and were included in general education classrooms for at least five months prior to the study. The results indicated that a correlation did not exist between the …
The Effectiveness Of A Pre-First Grade Program On Later Academic Achievement, Betsey Grossman
The Effectiveness Of A Pre-First Grade Program On Later Academic Achievement, Betsey Grossman
Theses
Extra-year programs are widely used to help students who are deemed "unready" to master the curriculum of the next grade. This study investigated the academic effectiveness of a pre-first grade program in a suburban, predominantly Caucasian, upper middle class school system. Twenty-five matched pairs of children were selected for the study based on a readiness score on the Brigance K & 1 screening. Children who spent an extra year in pre-first grade were matched with youngsters who proceeded directly to the first grade based on gender, date of birth, and Brigance score. While no significant differences were found between the …
An Experimental Method To Determine Micromechanical Properties Of Thin Films Using The Atomic Force Microscope, Brandon Comella
An Experimental Method To Determine Micromechanical Properties Of Thin Films Using The Atomic Force Microscope, Brandon Comella
Theses
A promising method has been developed to determine micromechanical properties of thin film materials. Metal and ceramic thin films are used extensively in the computer microprocessor industry and in the relatively new field of Micro- Electromechanical Systems (MEMS). The push for miniaturization and increased performance out of the computer microprocessor and MEMS devices have pushed materials to their limits. Micromechanical properties are very difficult to obtain due to the lack of adequate testing equipment on the microscale. The atomic force microscope (AFM), most commonly used as an imaging tool, lends itself to mechanical interaction with the sample surface by means …
Finite Element Modeling Of A Moving Boundary Problem, Chang Heub Lee
Finite Element Modeling Of A Moving Boundary Problem, Chang Heub Lee
Theses
The analysis and calculation of the finite element modeling of a moving boundary between immiscible fluids in a porous medium is presented. One fluid is introduced under prescribed inlet boundary conditions and the motion of the resulting interface boundary studied and calculated. The aforementioned scenario is calculated using a finite element program based on the software, MATLAB. Analytical solutions developed in one dimension illustrate the moving boundary movement and benchmark for numerical solutions. The aim of computer aided calculation is to develop and predict a model applicable to a real situation, yet flexible enough for future adaptation to other problems …
Lentejuelas, E. Vicente Martinez
Conscious Visions, Masako Nitz
Conscious Visions, Masako Nitz
Theses
My goal in creating this body of work is to investigate narrative painting using images which are personally relevant. I have labeled my paintings as representations of personal allegories derived from memories and dreams, and in doing so I am referring to the transference of memory, and its inherently subjective and ambiguous visual images, into a concrete visual form. I also attach symbolic importance to the memories I have chosen to paint, not because the events they describe are hallmarks of my life, but rather for their random nature. These images all describe moments when I have consciously thought "I …
Mother And Child, Gow Chen
The Temptation Of Desires, Wen-Hwa Cheng
African Voices: An On-Line Exhibit For The Museum Of Natural History, Smithsonian Institution, F. Lee Corkran
African Voices: An On-Line Exhibit For The Museum Of Natural History, Smithsonian Institution, F. Lee Corkran
Theses
The purpose of this project is to develop a network-based interactive model for disseminating information contained in a museum exhibition. This will encompass developing a logical navigational design, translating the exhibit content into an effective information layout and relating it to the user through a cognitive interface. Specifically, my intent is to develop and construct the foundational struc ture and supporting elements of a website for the African Voices project, an exhibition in the Museum of Natural History at the Smithsonian Institution in Washington, DC. The goal of the website is to provide users with the information they would gain …
Emotional And Spiritual Connotations Of The Vessel, Charles Iv Carson
Emotional And Spiritual Connotations Of The Vessel, Charles Iv Carson
Theses
None provided.
Heritage, Kelly Anne Cornell
Interactive Computer/Video Game Sampler Cd-Rom Disc, Jeffrey Mariotti
Interactive Computer/Video Game Sampler Cd-Rom Disc, Jeffrey Mariotti
Theses
None provided.