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Articles 9061 - 9090 of 9453
Full-Text Articles in Entire DC Network
Tangerine Sours, Gisèle N. Couturier
Tangerine Sours, Gisèle N. Couturier
Theses
My thesis work will explore the use of the ceramic object as metaphor for the self. Due to my strong background and interest in science and mathematics, I have a tendency to process my surroundings through logical order and pattern. I am continuously searching for this order and trying to classify and organize data so that it makes sense to me. Finding this order within chaos, particularly in the natural world, is fascinating. My intention is to reference these biological elements in a form that has a clear delineation between interior and exterior. The dialogue between the two is where …
Relevant Scales In Zooplankton Ecology: Distribution, Feeding, And Reproduction Of The Copepod Acartia Hudsonica In Response To Thin Layers Of The Diatom Skeletonema Costatum, Alexander B. Bochdansky, Stephen M. Bollens
Relevant Scales In Zooplankton Ecology: Distribution, Feeding, And Reproduction Of The Copepod Acartia Hudsonica In Response To Thin Layers Of The Diatom Skeletonema Costatum, Alexander B. Bochdansky, Stephen M. Bollens
OES Faculty Publications
We investigated the interaction of the copepod Acartia hudsonica in relation to thin layers of the diatom Skeletonema costatum. Thin layers have recently received much attention, since they are common and persistent features in the water column, often overlooked by traditional sampling methods. Their frequent abundance in coastal oceans and the high biomass associated with them has led to the assumption that they are important grazing sites of calanoid copepods. We employed 2-m tall tower tanks that allowed us to simulate thin layers. Three variables representative of three time scales were considered: the distribution of copepods in the tanks …
Anodic Stripping Voltammetric Determination Of Gold On A Polyvinylferrocene Coated Glassy Carbon Electrode, Muammer Kavanoz, Handan Gülce, Atti̇la Yildiz
Anodic Stripping Voltammetric Determination Of Gold On A Polyvinylferrocene Coated Glassy Carbon Electrode, Muammer Kavanoz, Handan Gülce, Atti̇la Yildiz
Turkish Journal of Chemistry
The anodic stripping voltammetric determination of gold was accomplished on a chemically modified glassy carbon electrode in a solution containing chloride ions. A modifying polymer, polyvinylferrocene, was coated by immersing the glassy carbon surface in its solution in methylene chloride followed by solvent evaporation. Tetrahalo complexes of gold, tetrachloroaurate(III) and tetrabromoaurate(III) ions, were found to be reduced to metallic gold by chemical reduction during immersion of the polymer coated electrode into the solution containing aurate(III) ions. This reaction was utilized as means of preconcentration without the need for cathodic electrolysis prior to the anodic stripping of metallic gold. The effects …
A Rapid Spectrophotometric Method To Resolve A Binary Mixture Of Food Colorants (Riboflavine And Sunset Yellow), Mahmure Üstün Özgür
A Rapid Spectrophotometric Method To Resolve A Binary Mixture Of Food Colorants (Riboflavine And Sunset Yellow), Mahmure Üstün Özgür
Turkish Journal of Chemistry
A very simple and rapid spectrophotometric method using measurements at zero-crossing wavelength is described for resolving binary mixtures of riboflavine (E-101) and sunset yellow (E-110) in a powder drink. The assay procedure for E-110 and E-101 involves the extraction of the colorants from the powder drink with pH 4.5 acetate buffer, filtration, appropriate dilution, and measurement of the first derivative absorbance values (denoted as ^1D). Calibration graphs are linear up to 25.0 \mu g.mL^{-1} for E-101 and 40.0 \mu g.mL^{-1} for E-110. The sensitivity and reproducibility of the method were determined by using the synthetic mixtures in different ratios prepared …
Up, Suruchi Pahwa
Proof Of Concept Design And Analysis Of Active Flow Control Of A Supersonic Micro-Nozzle, Christopher J. Szachta
Proof Of Concept Design And Analysis Of Active Flow Control Of A Supersonic Micro-Nozzle, Christopher J. Szachta
Theses
Low Reynolds number supersonic nozzles have been studied for several years due to their significance in applications in micro-spacecraft. As satellite design reduces in mass and size, smaller more versatile propulsion systems will be required. In response to the need, a conical nozzle (expansion ratio of 25 and 20° half-angle of divergence) with throat dimensions of 600µm x 300µm has been designed and fabricated with capabilities in thrust magnitude control. The device utilizes the expansion of a silicone membrane, located on the upper surface of the supersonic micro-nozzle throat, as a mechanism to reduce the throat cross sectional area, and …
P-Hip: A Multiresolution Halftoning Algorithm For Progressive Display, Mithun Mukherjee
P-Hip: A Multiresolution Halftoning Algorithm For Progressive Display, Mithun Mukherjee
Theses
This thesis describes and implements an algorithmic framework for memory efficient, 'on-the-fly' halftoning in a progressive transmission environment. Instead of a conventional approach which repeatedly reconstructs the continuous tone image from memory and subsequently halftones it for display, the proposed method achieves significant memory efficiency by storing only the halftoned image and updating it in response to additional information received through progressive transmission. Thus the method requires only a single frame-buffer of bits for storage of the displayed binary image and no additional storage is required for the contone data. The additional image data received through progressive transmission is accommodated …
Synthesis And Characterization Of Block Copolymers Using Polysiloxane Based Macroazoinitiator, Sennur Deni̇z, Ni̇l Baran, Mesut Akgün, Nalan A. Akgün, Sali̇h Di̇nçer
Synthesis And Characterization Of Block Copolymers Using Polysiloxane Based Macroazoinitiator, Sennur Deni̇z, Ni̇l Baran, Mesut Akgün, Nalan A. Akgün, Sali̇h Di̇nçer
Turkish Journal of Chemistry
Poly(dimethylsiloxane-b-styrene) (PDMS-b-PSt) and poly(dimethylsiloxane-b-methyl methacrylate) (PDMS-b-PMMA) block copolymers containing siloxane segments were studied by the radical polymerizations of vinyl monomers such as styrene (St) and methyl methacrylate (MMA) using polydimethylsiloxane based macroazoinitiator (PDM-MAI) in solution. PDM-MAI was synthesized by reacting hydroxy-terminated polydimethylsiloxane (PDMS) and 4,4'-azobis (4-cyanopentanoyl chloride) (ACPC) having a thermodegradable azo-linkage. The polycondensation reaction between PDMS and ACPC (2:1, molar ratio) was carried out at room temperature. The polymerizations of St and MMA initiated by PDM-MAI were investigated using different PDM-MAI concentrations (1, 5, 10, and 15 wt. %) for various reaction times with a methyl ethyl ketone (MEK)/ …
A New Look At The Multiclass Network Equilibrium Problem, Patrice Marcotte, Laura Wynter
A New Look At The Multiclass Network Equilibrium Problem, Patrice Marcotte, Laura Wynter
Research Collection School Of Computing and Information Systems
The multiclass network equilibrium problem is expressed in general as a nonmonotone, asymmetric, variational inequality problem. We show that in spite of the nonmonotonicity of the cost operator, the problem may actually satisfy a weaker property, induced by the hierarchical nature of the travel cost interactions. This property allows a natural decomposition approach, not otherwise available, that admits provably convergent algorithms. We present one such algorithm, easily implementable using a solver for the single-class network equilibrium problem, together with a convergence proof.
Java-Based Digital Library Portal For Geography Education, Zehua Liu, Hai Yuan, Ee Peng Lim, Ming Yin, Dion Hoe-Lian Goh, Yin-Leng Theng, Wee-Keong Ng
Java-Based Digital Library Portal For Geography Education, Zehua Liu, Hai Yuan, Ee Peng Lim, Ming Yin, Dion Hoe-Lian Goh, Yin-Leng Theng, Wee-Keong Ng
Research Collection School Of Computing and Information Systems
G-Portal is a Java-based digital library system for managing the metadata of geography related resources on the Web. In addition to providing a flexible repository subsystem to accommodate metadata of different formats using XML and XML Schemas, G-Portal organizes metadata into projects and layers, and supports an integrated and synchronized classification and map-based interfaces over the stored metadata. G-Portal also includes a classification subsystem that creates category structures and classifies metadata resources into categories based on user-specified classification schemas. Furthermore, G-Portal users can annotate resources and make their annotations available to others. In this paper, we describe the design and …
The Special Purpose Local Option Sales Tax Referendum And The Financing Of Public School Capital Projects In Georgia, Kathy Cox Peavy
The Special Purpose Local Option Sales Tax Referendum And The Financing Of Public School Capital Projects In Georgia, Kathy Cox Peavy
College of Graduate Studies: Theses & Dissertations (1964–2006)
Although taxes have risen across the nation, funding for public school capital projects still remains a critical need in education. The public outcry for no new taxes has given arise to various types of creative funding for capital projects. The use of a 1-cent sales tax for educational purposes is one type of new funding for capital projects. This study was a mixed-method, descriptive design study gathering quantitative and qualitative data on the Special Purpose Local Option Sales Tax referendum in Georgia. Fifty-seven school districts in Georgia, with an approved SPLSOT referendum on March 18. 1997, along with four school …
Faculty Handbook, Georgia Southern University
Faculty Handbook, Georgia Southern University
Faculty Handbooks
Faculty Handbook for Georgia Southern University for the 2004-2005 academic year. The Faculty Handbook is published online by the Office of the Vice President for Academic Affairs and archived in Digital Commons@Georgia Southern.
Viscors: A Visual-Content Recommender For The Mobile Web, Chan Young Kim, Jae Kyu Lee, Yoon Ho Cho, Deok Hwan Kim
Viscors: A Visual-Content Recommender For The Mobile Web, Chan Young Kim, Jae Kyu Lee, Yoon Ho Cho, Deok Hwan Kim
Research Collection School Of Computing and Information Systems
Current search methods for mobile-Web content can be frustrating to use. To shorten searches for cell phone wallpaper images, VISCORS combines collaborative filtering with content-based image retrieval. An increasing selection of content is becoming available in the mobile-Web environment, where users navigate the Web using wireless devices such as cell phones and PDAs. The fast growth and excellent prospects of the mobile-Web content market have attracted many content providers.
Supply Chains Integration: Architecture And Enabling Technologies, Keng Siau, Yuhong Tian
Supply Chains Integration: Architecture And Enabling Technologies, Keng Siau, Yuhong Tian
Research Collection School Of Computing and Information Systems
An effective and efficient supply chain is vital to the competitiveness and the survival of an organization. With the emergence of the e-business era, supply chain systems need to be able to extend beyond the traditional boundaries. This paper proposes integrated supply chain architecture (SCA) that combines the benefits of Enterprise Resource Planning (ERP) and the various supply chain applications. Some necessary criteria for an integrated supply chain include completeness, security, flexibility, scalability, and interoperability. The enabling technologies for such a supply chain system include XML, DCOM, CORBA, SOAP, Net, and Semantic Web. Wireless and mobile technologies could further extend …
Logistics Outsourcing And 3pl Challenges, Michelle L. F. Cheong
Logistics Outsourcing And 3pl Challenges, Michelle L. F. Cheong
Research Collection School Of Computing and Information Systems
Logistics has been an important part of every economy and every business entity. The worldwide trend in globalization has led to many companies outsourcing their logistics function to Third-Party Logistics (3PL) companies, so as to focus on their core competencies. This paper attempts to broadly identify and categorize the challenges faced by 3PL companies and discover potential gaps for future research. Some of the challenges will be related with the experience and information collected from interviews with two 3PL companies.
Southern Educator, Georgia Southern University
Southern Educator, Georgia Southern University
College of Education: News & Publications (2003-2023)
- Reavis Heads Georgia Center for Educational Renewal
- Chris Crutcher Lecture
- Children’s Literature Collection Endowed
- Honoring Student Achievement
- 16th National Youth-at-Risk Conference
- COE Soaring Into Action
- Dr. Reynolds Receives Jack Miller Award
- A Day on Campus With Teachers of Tomorrow
- DESTINATION TEACHING: Customized Pathways to Get You There
- Parsons Provides FIPSE Leadership
- Local Kappa Delta Pi Chapter Celebrates 53rd Year
- Professors Who Have Made A Difference
- SPOTLIGHT ON ALUMNI
- Southern Educator Class Roll
- International Study Opportunity
- Welcome New Faculty/Staff
Southern Educator, Georgia Southern University
Southern Educator, Georgia Southern University
College of Education: News & Publications (2003-2023)
- Georgia Southern Soccer and COE in Iraq
- PRISM Collaborative for Math & Science
- Kiwanis Support International Study
- Information Sessions for Off-Campus Degrees
- COE Soaring Into Action
- P-16 Partnership for Teaching/Learning Renewal
- College of Education and First District RESA Co-Sponsor the JASON Project
- Guidelines for Happy Teachers
- SPOTLIGHT ON ALUMNI
- Southern Educator Class Roll
- DESTINATION TEACHING: Customized Pathways to Get You There
- Colonel Robert Guy
- College of Education Board of Advisors Fall Meeting
- Professors Who Have Made A Difference
- Partnering with the UK
- Faculty/Staff Retirements
- PREP Students Attend 21st Century Leadership Activities
Undergraduate And Graduate Catalog [2003-2004], Georgia Southern University
Undergraduate And Graduate Catalog [2003-2004], Georgia Southern University
Undergraduate & Graduate Catalogs
No abstract provided.
2004 - 2005 Undergraduate Catalog, Armstrong Atlantic State University
2004 - 2005 Undergraduate Catalog, Armstrong Atlantic State University
Armstrong Office of the Registrar: Undergraduate Catalogs (Archived)
Undergraduate catalog for Armstrong Atlantic State University.
2004 Aasu Tennis Guide, Armstrong State University
2004 Aasu Tennis Guide, Armstrong State University
Armstrong Athletics: Men's Tennis Records (Archived)
No abstract provided.
2004 Aasu Women's Basketball Guide, Armstrong State University
2004 Aasu Women's Basketball Guide, Armstrong State University
Armstrong Athletics: Women's Basketball Records (Archived)
No abstract provided.
The Future Of Professional Education In Natural Family Planning, Richard J. Fehring
The Future Of Professional Education In Natural Family Planning, Richard J. Fehring
College of Nursing Faculty Research and Publications
Nurses and other health care professionals often have little knowledge of methods of natural family planning (NFP) and do not readily prescribe natural methods for their patients. One reason for this is that little or no information on NFP is provided in nursing or medical schools. The holistic, informational, and integrative nature of NFP fits well with professional nursing practice. A university online distance education NFP teacher training program, which offers academic credit and includes theory, practice, and the latest developments in fertility monitoring, has been developed for health care professionals. Professional NFP services in the United States need to …
Inner Shelf Circulation In Coastal Virginia: A Data Assimilation Approach, Hector Hito Sepulveda
Inner Shelf Circulation In Coastal Virginia: A Data Assimilation Approach, Hector Hito Sepulveda
OES Theses and Dissertations
The primary objective of this dissertation is to describe the tidal and subtidal flow patterns over the inner shelf of the Delmarva Peninsula, located in the Mid-Atlantic Bight of the United States (36.6–38.0 N), north of the Chesapeake Bay. The objective is pursued with a combination of direct measurements and numerical assimilative techniques. The dynamic balance of the study area is little known, and the distribution of tidal properties has not been described for this area since very rough descriptions in the 1950's. Hydrographic and current velocity profiles from four regional cruises in the inner shelf were used to study …
Synchronous Text-Based Chat Vis-À-Vis Asynchronous Threaded Discussion: An Instructional Strategy For Providing An Option In Two Course Delivery Schemes, Shin Yi Lin
Theses and Dissertations in Urban Services - Urban Education
The purpose of this study was to investigate whether an instructional strategy of providing students an option of two types of online text-based discussion (chat vs. threaded discussion forum) had significant effects on student satisfaction, cognitive achievement, and self-efficacy. In an effort to identify any differential effects associated with student characteristics, students' age and learning preferences were used as blocking variables. The study sample was teacher education students. Statistical procedures employed were MANOVA; MANCOVA, regression analysis, chi-square, and correlation were employed. The findings show that such an instructional customization—providing the online discussion forum option—has positive impacts on student satisfaction and …
Surveying Cost Growth, Michael A. Greiner, Vince Sipple, Edward D. White
Surveying Cost Growth, Michael A. Greiner, Vince Sipple, Edward D. White
Faculty Publications
Cost growth that weapon systems incur throughout their acquisition life cycle concerns those who work in the acquisition environment. One way to reduce the amount of unexpected cost growth is to develop better cost estimates. In attaining better cost estimates though, it is often helpful to understand and account for potential cost drivers. Several cost studies, some of which specifically focus on the aircraft industry, have been performed documenting and investigating these growth factors. Overviews of these various cost growth studies are presented as other tools for the cost estimators and program managers.
Acknowledgement Response And Interference Timing During The Processing Of Voice And Datalink Atc Commands, Matthew R. Risser
Acknowledgement Response And Interference Timing During The Processing Of Voice And Datalink Atc Commands, Matthew R. Risser
Psychology Theses & Dissertations
In aviation, effective communication between air traffic control (ATC) and pilots is critical to pilot performance and safety. Problems and limitations of current radio communications initiated the development of datalink technology. Datalink is a text system used to send messages between ATC and pilots. Although datalink was intended to reduce errors associated with radio communication, there are new concerns related to changes in information processing demands associated with executing speech and text ATC commands. In addition, the nature of responses differs between voice and datalink systems. In a voice environment, responses are immediate. However, time delays exist with datalink. These …
Hydrologic Variations Within Created And Natural Wetlands In Southeastern Virginia, Aaron Dyer Despres
Hydrologic Variations Within Created And Natural Wetlands In Southeastern Virginia, Aaron Dyer Despres
OES Theses and Dissertations
The hydrology of wetlands, particularly how wetland soils collect, store, and redistribute water strongly affects how wetland systems function. In created wetlands, construction processes and materials influence the hydrology and consequently, the potential for successful reestablishment of target vegetation communities. During 2002–2004, the Virginia Department of Transportation constructed large mitigation wetlands on two different Quaternary aged surfaces with very similar hydrogeomorphic conditions. The Sandy Bottom Nature Park site (SBNP) located in Hampton, VA and rests on the sandy loam Tabb Formation while the Charles City Wetland site (CCW) lies on the older and clay-rich Shirley Formation. This study documents and …
Estimation Of Primary Production And Carbon Flux In Antarctic Coastal Waters: A Modeling Study, Hae-Cheol Kim
Estimation Of Primary Production And Carbon Flux In Antarctic Coastal Waters: A Modeling Study, Hae-Cheol Kim
OES Theses and Dissertations
This study presents results from models that are designed to simulate the underwater light field, to simulate phytoplankton primary production, and to estimate the fate of phytoplankton carbon in continental shelf waters of the west Antarctic Peninsula (WAP) and Ross Sea. Simulation of the underwater light field required derivation of new coefficient sets for power function-type cloud cover correction algorithms, which were found to be influenced by multiple reflections between the bottom of clouds and the surface. The coefficient sets indicate that the spectral effect of clouds on the properties of the surface irradiance was spectrally-neutral for wavelengths greater than …
An Investigation Of Dissolved Organic Matter In A Shallow Coastal Bay Subject To Aureococcus Anophagefferens Blooms, Jean-Paul Simjouw
An Investigation Of Dissolved Organic Matter In A Shallow Coastal Bay Subject To Aureococcus Anophagefferens Blooms, Jean-Paul Simjouw
OES Theses and Dissertations
Aureococcus anophagefferens, the pelagophyte responsible for brown tide blooms, was identified in Chincoteague Bay in 1997 and has “bloomed” there since at least 1998. Aureococcus anophagefferens is capable of using dissolved organic nitrogen (DON) and dissolved organic carbon (DOC) substrates to support growth, and this utilization is hypothesized to give the organism a competitive advantage relative to other phytoplankton when inorganic nutrient concentrations are low or depleted. Because previous studies suggest dissolved organic matter (DOM) is important in initiating and sustaining brown tide blooms, a field study of the variations in DOC concentration and DOM composition was performed at …
Analysis Of Human Thermal Comfort Using A Coupled Model For Predicting Human Body-Environment Heat And Mass Exchange, Ahmed M. Al-Mogbel
Analysis Of Human Thermal Comfort Using A Coupled Model For Predicting Human Body-Environment Heat And Mass Exchange, Ahmed M. Al-Mogbel
Mechanical & Aerospace Engineering Theses & Dissertations
Recent advances in computational fluid dynamics (CFD) make it possible to accurately predict many features of airflow within ventilated spaces. The present study investigates thermal comfort aspects of an occupant in a conditioned space, using a CFD code.
The heat and mass transfer between the human body and the surrounding environment is analyzed by a coupled model that accounts for dispersal of metabolically generated heat in the body to the surroundings by the combined mechanisms of radiation, convection, respiration and evaporation. A two-node model in which two coupled non-linear algebraic equations govern the skin temperature and the body core temperature …