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Articles 1 - 30 of 47
Full-Text Articles in Engineering
Sixth U.S.-Japan Seminar On Polymer Synthesis: Macromolecular Design For Advanced Materials, Otto Vogl, Shiro Kobayashi
Sixth U.S.-Japan Seminar On Polymer Synthesis: Macromolecular Design For Advanced Materials, Otto Vogl, Shiro Kobayashi
Emeritus Faculty Author Gallery
No abstract provided.
64. Tibor Kelen, Otto Vogl
Polymer Institute Slovak Academy Of Sciences Bratislava, Slovakia, Otto Vogl
Polymer Institute Slovak Academy Of Sciences Bratislava, Slovakia, Otto Vogl
Emeritus Faculty Author Gallery
No abstract provided.
Expression Of A Functional Human Complement Inhibitor In A Transgenic Pig As A Model For The Prevention Of Xenogeneic Hyperacute Organ Rejection., William L. Fodor, Barry L. Williams, Louis A. Martis, Josaeph A. Madri, Scott A. Rollins, James W. Knight, William H. Velander, Stephen P. Squinto
Expression Of A Functional Human Complement Inhibitor In A Transgenic Pig As A Model For The Prevention Of Xenogeneic Hyperacute Organ Rejection., William L. Fodor, Barry L. Williams, Louis A. Martis, Josaeph A. Madri, Scott A. Rollins, James W. Knight, William H. Velander, Stephen P. Squinto
Papers in Biotechnology
ABSTRACT The serious shortage of human organs available for transplantation has engendered a heightened interest in the use of animal organs (xenografts) for transplantation. However, the major barrier to successful discordant xenogeneic organ transplantation is the phenomenon of hyperacute rejection. Hyperacute rejection results from the deposition of high-titer preformed antibodies that activate serum complement on the luminal surface of the vascular endothelium, leading to vessel occlusion and graft failure within minutes to hours. Although endogenous membrane-associated complement inhibitors normally protect endothelial cells from autologous complement, they are species restricted and thus confer limited resistance to activated xenogeneic complement. To address …
Third Pacific Polymer Conference. Gold Coast - Australia, Otto Vogl, Graeme A. George
Third Pacific Polymer Conference. Gold Coast - Australia, Otto Vogl, Graeme A. George
Emeritus Faculty Author Gallery
No abstract provided.
Polymer Science In Australia I. Sydney And Canberra, Otto Vogl, Donald H. Napper
Polymer Science In Australia I. Sydney And Canberra, Otto Vogl, Donald H. Napper
Emeritus Faculty Author Gallery
No abstract provided.
65. Ferenc Tudos, Otto Vogl
Ultrasonic Enhancement Of Antibiotic Action On Gram-Negative Bacteria, William G. Pitt, Michael O. Mcbride, Jared K. Lunceford, Randall J. Roper, Richard D. Sagers
Ultrasonic Enhancement Of Antibiotic Action On Gram-Negative Bacteria, William G. Pitt, Michael O. Mcbride, Jared K. Lunceford, Randall J. Roper, Richard D. Sagers
Faculty Publications
The effect of gentamicin upon planktonic cultures of Pseudomonas aeruginosa, Escherichia coli, Staphylococcus epidermidis, and Staphylococcus aureus was measured with and without application of 67-kHz ultrasonic stimulation. The ultrasound was applied at levels that had no inhibitory or bactericidal activity against the bacteria. Measurements of the MIC and bactericidal activity of gentamicin against planktonic cultures of P. aeruginosa and E. coli demonstrated that simultaneous application of 67-kHz ultrasound enhanced the effectiveness of the antibiotic. A synergistic effect was observed and bacterial viability was reduced several orders of magnitude when gentamicin concentrations and ultrasonic levels which by themselves did not reduce …
Polymer Science In Australia Ii. Brisbane And Queensland, Otto Vogl, James H. O'Donnell, David J. T. Hill
Polymer Science In Australia Ii. Brisbane And Queensland, Otto Vogl, James H. O'Donnell, David J. T. Hill
Emeritus Faculty Author Gallery
No abstract provided.
Xith Symposium On Cationic Polymerization And Related Ionic Processes, Otto Vogl, Ivan M. Panayotov, Christo B. Tsvetanov
Xith Symposium On Cationic Polymerization And Related Ionic Processes, Otto Vogl, Ivan M. Panayotov, Christo B. Tsvetanov
Emeritus Faculty Author Gallery
No abstract provided.
Low Cost Schottky Barrier Solar Cells Fabricated On Cdse And Sb2S3 Films Chemically Deposited With Silicotungstic Acid, O. Savadogo, K. C. Mandal
Low Cost Schottky Barrier Solar Cells Fabricated On Cdse And Sb2S3 Films Chemically Deposited With Silicotungstic Acid, O. Savadogo, K. C. Mandal
Faculty Publications
No abstract provided.
9th Bratislava Conference On Modification Of Thermoplastic Polymers, Otto Vogl, Lyda Matisova-Rychla
9th Bratislava Conference On Modification Of Thermoplastic Polymers, Otto Vogl, Lyda Matisova-Rychla
Emeritus Faculty Author Gallery
No abstract provided.
Polymer Science In Australia Iii. Csiro And Other Government Institutions, Otto Vogl, Ezio Rizzardo, Carolyn Morris
Polymer Science In Australia Iii. Csiro And Other Government Institutions, Otto Vogl, Ezio Rizzardo, Carolyn Morris
Emeritus Faculty Author Gallery
No abstract provided.
Orientation Induced Scattering Asymmetry, Jee-Ching Wang, Ronald E. Olson
Orientation Induced Scattering Asymmetry, Jee-Ching Wang, Ronald E. Olson
Chemical and Biochemical Engineering Faculty Research & Creative Works
Projectile angular scattering is investigated following electron capture by protons from circular Rydberg atoms oriented along a quantization axis perpendicular to the incident projectile direction. We find strong left-right scattering asymmetry as a function of the orientation angle at collision speeds comparable to the electron orbital speed. The capture cross section is dramatically enhanced due to velocity matching when the angular momenta of the proton and the electron are aligned. The scattering asymmetry exhibits characteristic impact parameter dependencies suitable for studying three-body dynamics influenced by both long and short range forces of comparable strength. © 1994 IOP Publishing Ltd.
Lignocellulosic And Cellulosic Beads For Affinity And Immunoaffinity Chromatography Of High Molecular Weight Protiens, William H. Velander
Lignocellulosic And Cellulosic Beads For Affinity And Immunoaffinity Chromatography Of High Molecular Weight Protiens, William H. Velander
Department of Chemical and Biomolecular Engineering: Patents
Improved cellulosic beads for use as supports in bioaffinity chromatography are produced by dissolution of cellulose in a chaotropic cellulose solvent, formation of the dissolved cellulose into droplets, and immersion of the droplets into a non-solvent capable of solvent interchange with the cellulose solvent to form generally spherical porous cellulose beads of narrow particle size distribution. The beads formed are preferably made with cellulose having a degree of polymerization between 100 and 200, and the resulting beads when saturated with water without drying contain between 1% and 7% cellulose by weight and have a particle size of at least about …
Unzippable Polymer Mask For Screening Operations, Ravi F. Saraf
Unzippable Polymer Mask For Screening Operations, Ravi F. Saraf
Department of Chemical and Biomolecular Engineering: Patents
The present invention relates to a dry process for forming patterns on a substrate. More particularly, the process contemplates coating an unzippable polymer film with a small amount of desirable UV if required on a substrate; laser ablating said film into a desired pattern or mask; screening a conductive or resistive paste onto the substrate through the ablated features of said mask; heating said substrate and mask to the unzipping temperature of said mask; and, vaporizing said mask and UV absorbing dye if present leaving behind the solid of said conductive or resistive past adhered to the substrate in the …
Electroless Metal Adhesion To Organic Dielectric Material With Phase Separated Morphology, Ravi F. Saraf
Electroless Metal Adhesion To Organic Dielectric Material With Phase Separated Morphology, Ravi F. Saraf
Department of Chemical and Biomolecular Engineering: Patents
Improved adhesion of electroless metal deposited on an organic dielectric layer with phase separated morphology is accomplished by the spontaneous formation of a morphologically and topographically rough surface. In one embodiment a ternary solution of a polar solvent and two polymer precursors of the same polymer which are separable in two phases of different order are cast in film on a substrate and heated to form two phases of different order to spontaneously produce a rough surface. Upon exposure to an alkaline solution, one phase is etched at a faster rate than the other. Seeding and electroless deposition of a …
Automation Of Process Data Management, Stephen C. Chadwick
Automation Of Process Data Management, Stephen C. Chadwick
Opportunities for Undergraduate Research Experience Program (OURE)
The project goal is to create an automated system for managing data that describes a chemical process. The data is both graphical, such as piping and instrumentation diagrams, and numerical, such as pipe schedule and diameter. AutoLisp and C++ programs were developed and tested to simplify the creation of the automated system.
The Affects Of Butyl Acetate And Acetone On Plexiglass, Tracy E. Downs
The Affects Of Butyl Acetate And Acetone On Plexiglass, Tracy E. Downs
Opportunities for Undergraduate Research Experience Program (OURE)
The actions that solvents take on polymers was the focus of the summer 1993 research. There were two goals: one was to measure the distances between the cracks that formed in the plexiglass and two was to determine the time of arrival of the cracks. Two solvents, butyl acetate and acetone were used to generate data on polymethyl methacrylate (PMNA/Plexiglass).
The measurement of the time of arrival of a crack was another goal. This quantity is related to the growth of the fractures. This was difficult since only a localized portion of the plexiglass sample could be viewed.
Solvent Recovery For An Extraction Process, Denise C. Ratcliff
Solvent Recovery For An Extraction Process, Denise C. Ratcliff
Opportunities for Undergraduate Research Experience Program (OURE)
The solvent recovery project involves the recovery of a valuable solute, acetic acid, from a spend solvent stream generated in a laboratory extraction experiment. The majority of this project’s efforts center on the simulation of a ten-stage distillation column that will recover the acid. These simulation results will then be used to specify the ancillary process equipment needed for this distillation process.
The Development Of Equipment Specification Form From The Pdxi Data Models, Justin M. Juengel
The Development Of Equipment Specification Form From The Pdxi Data Models, Justin M. Juengel
Opportunities for Undergraduate Research Experience Program (OURE)
The project has culminated in the development of a simplistic working model, based upon the existing data model created by the Process Data Exchange Institute (PDXI). This data model is depicted in Volume 1 of the deliverables for the PDXI Data File Interchange Format Project. The working model, based in part on the Planning Level Model and the Heat Transfer Model [1] of the overall data model, was then used to create an equipment specification form (Fig 1) for a heat exchanger, partially utilizing the standards set forth by the Tubular Exchanger Manufacturers Association (TEMA).
An Extension Of Pdxi Data Models To Include Process Control Data, Joseph D. Graber
An Extension Of Pdxi Data Models To Include Process Control Data, Joseph D. Graber
Opportunities for Undergraduate Research Experience Program (OURE)
The results described herein have culminated into the creation of an object model which extends an existing engineering data model to include process control data. The existing data model is described in Volume I of the deliverables for the Process Data Exchange Institute (PDXI) Data File Interchange Format Project. This object model was created using the OMTooP software package on Sun Stations in the Intelligent Systems Center(ISC) of the University of Missouri--Rolla (UMR). It expands on the classes of signal port, control element, and control system.
Effect Of Culture Conditions, Donor Age, And Injection Site On In Vitro Development Of Dna Microinjected Porcine Zygotes, M A. Hajdu, J W. Knight, R S. Cansecot, R L. Krisher, William H. Velander, R E. Pearson, F C. Gwazdauskas
Effect Of Culture Conditions, Donor Age, And Injection Site On In Vitro Development Of Dna Microinjected Porcine Zygotes, M A. Hajdu, J W. Knight, R S. Cansecot, R L. Krisher, William H. Velander, R E. Pearson, F C. Gwazdauskas
Papers in Biotechnology
A series of experiments evaluated development of porcine zygotes microinjected with DNA in three culture media and two incubation temperatures, from postpubertal and prepubertal donors, and between zygotes injected with DNA into the pronucleus and the cytoplasm. Zygotes recovered from 36 postpubertal gilts in Exp. 1 were injected and cultured in modified NCSU-23, modified NCSU-37, and CZB media at 37°C or 39°C for 7 d. In Exp. 2, zygotes were collected from postpubertal or prepubertal gilts, microinjected with DNA, and cultured in modified NCSU-23. In Exp. 3 superovulated prepubertal gilts had DNA injected into the cytoplasm or pronucleus of zygotes. …
Skin Effects Due To Perforations -- A Study Of Analysis Techniques, Jon Michael Gibbs
Skin Effects Due To Perforations -- A Study Of Analysis Techniques, Jon Michael Gibbs
Opportunities for Undergraduate Research Experience Program (OURE)
Until 1991, two methods could be used to evaluate the skin effect due to perforations, the Brons and Marting Method and the Harris Method. Due to the simplicity of the technique, the Brons and Marting Method has been the preferred method of use in the petroleum industry. However, with the recent development of a third technique to evaluate the skin effect due to perforations, the need has arisen to evaluate each of these techniques to determine which method is the most accurate under given conditions. This paper reviews and compares each of the three methods for evaluating the perforations skin. …
Fixed Site Facilitated Transport Of Oxygen And Nitrogen Through Plasma Polymer Films, Chad Dunnegan
Fixed Site Facilitated Transport Of Oxygen And Nitrogen Through Plasma Polymer Films, Chad Dunnegan
Opportunities for Undergraduate Research Experience Program (OURE)
A method of preparing plasma polymer films, in which metal chelate molecules are incorporated, is briefly outlined. The chemical reactivity of metal chelate molecules is preserved so that they may ”facilitate” the transport of oxygen molecules through the membrane. The method for testing permeability of the films is presented and results are analyzed with respect to the dual mode sorption model, applied to fixed site facilitated transport.
Forced Convective Diffusion And Interphase Heat And Mass Transfer: Computations Of Radial Functions, Temperature And Concentration Fields, And Presentation Of Local And Average Nusselt And Sherwood Numbers, Stephen Myers, X B. Reed Jr., N. Y. Shah, A. E. Penn
Forced Convective Diffusion And Interphase Heat And Mass Transfer: Computations Of Radial Functions, Temperature And Concentration Fields, And Presentation Of Local And Average Nusselt And Sherwood Numbers, Stephen Myers, X B. Reed Jr., N. Y. Shah, A. E. Penn
Opportunities for Undergraduate Research Experience Program (OURE)
Theoretical calculations have been carried out for forced convective transport for uniform streaming and uniaxial and biaxial extensional axisymmetric flows past single spheres. Homogeneous and heterogeneous chemical reactions, both of first and of second order have also been or are presently being treated. Orthogonality and other properties of Legendre functions have been used, together with introduction of an eigenfunction expansion, to reduce the mathematical description from a partial differential equation with variable coefficients, which is nonlinear for homogeneous second order chemical reactions, to a system of coupled ordinary differential equations for the radial modes. The numerical solutions of the latter …
First Shell Substitution Effects: Diglyeidyl Ether Of Bisphenol A Cured With 4,4'-Diaminodiphenylmethane, Hossein Noureddini, Delmar C. Timm
First Shell Substitution Effects: Diglyeidyl Ether Of Bisphenol A Cured With 4,4'-Diaminodiphenylmethane, Hossein Noureddini, Delmar C. Timm
Papers in Molecular Chemistry
First shell substitution effects were incorporated into a kinetic reaction model descriptive of the polymerization of an epoxy resin formulated from diglycidyl ether of bisphenol A and 4,4'-diaminodiphenylmethane. Analysis of populaiion density distribution dynamics for the hardener and several oligomers in the sol fraction showed that the reactivity of secondary amino hydrogens is less than the reactivity of primary amino hydrogens.
Sporomorphs And Palynological Interpretations Of Lower Oligocene Strata From The Eastern Gulf Coast, U.S.A., Lisa M. Reeves
Sporomorphs And Palynological Interpretations Of Lower Oligocene Strata From The Eastern Gulf Coast, U.S.A., Lisa M. Reeves
Opportunities for Undergraduate Research Experience Program (OURE)
The Vicksburg Group in the eastern Gulf Coast of the United States belongs to one of the most complete and continuous Paleogene strata in the world. Previous studies in this region have neglected the rich palynomorph assemblages of the Lower Oligocene units of the Vicksburg Group. Four samples from Wayne County Mississippi were analyzed for palynological information on the Vicksburg Group. The initial objective of the study was to understand the principles of palynology and the basis for sporomorph identification. A minimum of 300 specimens were counted per slide to determine the distribution of sporomorphs in the sediments. Two hundred …
High-Pressure Wateijet Technology: A Review And Design Of High-Pressure Hybrid Drillbits, Azmi Zainal Adnan
High-Pressure Wateijet Technology: A Review And Design Of High-Pressure Hybrid Drillbits, Azmi Zainal Adnan
Opportunities for Undergraduate Research Experience Program (OURE)
The petroleum industry has seen many technological advances since oil was first discovered in the 19th century. Some of the current technological advances in the industry include cuttings transport, drillbit design, logging, and horizontal and directional drilling. Currently, research projects are being done at UMR to find ways to further reduce drilling costs and develop new technology that could improve the drilling effectiveness. One such project is the development of high- pressure waterjet / hybrid bits to replace the conventional mechanical drillbits. In this design, the advantages of waterjet penetration are combined with those of mechanical teeth cutting action..
At …
Interactive Multimedia Applications For The Correlations Of Petroleum Fluids Properties, Herman Smith Iii
Interactive Multimedia Applications For The Correlations Of Petroleum Fluids Properties, Herman Smith Iii
Opportunities for Undergraduate Research Experience Program (OURE)
Interactive Multimedia Applications for the Correlations of Petroleum Fluids Properties is a truly interactive and multimedia computer application designed to better help students taking the class "The Properties of Petroleum Fluids", Petroleum Engineering 141. This computer program incorporates error and information voice messages, control over three different computer applications (HyperCard 2.2, Mathcad V3.1, and DeskPaint™ V3.2), three-dimensional multi-coloration, pop-up graphics, directional buttons, object/label-oriented programming, and floating palettes. This creates one computer application to calculate petroleum properties versus the use of multiple, often crowded graphs.