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3,444 full-text articles. Page 1 of 64.

Ptsa Doped Conducting Graphene/Polyaniline Nanocomposite Fibers: Thermoelectric Behavior And Electrode Analysis, Mohammad Mansoob Khan Dr, M. O. Ansari, S. A. Ansari, M. I. Amal, J Lee, M. H. Cho 2014 SelectedWorks

Ptsa Doped Conducting Graphene/Polyaniline Nanocomposite Fibers: Thermoelectric Behavior And Electrode Analysis, Mohammad Mansoob Khan Dr, M. O. Ansari, S. A. Ansari, M. I. Amal, J Lee, M. H. Cho

Dr. Mohammad Mansoob Khan

Highly conducting graphene/polyaniline (GN@Pani) nanocomposite was prepared by the in-situ oxidative polymerization of aniline in the presence of GN and the surfactant, cetyltrimethylammonium bromide (CTAB). The micellar structure of CTAB assisted both, the formation of GN@Pani tubules and the dispersion of GN. Sheet-like GN was distributed uniformly in the Pani matrix, leading to high electrical conductivity because of the π-π interactions between Pani and GN. Studies of the thermoelectrical behavior using isothermal and cyclic aging techniques showed that GN@Pani possessed a high combination of electrical conductivity and thermal stability, even beyond 150°C. GN@Pani was ...


Pressure Hydrometallurgy, Fathi Habashi 2014 SelectedWorks

Pressure Hydrometallurgy, Fathi Habashi

Fathi Habashi

Pressure Hydrometallurgy is a supplement to the author’s Textbook of Hydrometallugy [second edition 1999]. It is an update to the new processes described in the literature dealing with recovering metals from ores and concentrates using this technology. Great progress was made in this field that necessitated this review.


The Wet Adhesion Of Polyvinylamine To Cellulose, John-Louis DiFlavio 2014 McMaster University

The Wet Adhesion Of Polyvinylamine To Cellulose, John-Louis Diflavio

Open Access Dissertations and Theses

A systematic investigation of Polyvinylamine (PVAm) as a strength-enhancing polymer for wet paper was undertaken through the development of a new test method that simulates the influence of polymers on fibre-fibre bonding in paper. Pairs of wet regenerated cellulose membranes were laminated using the paper strength-enhancing polymer as the lamination adhesive. The resulting laminates served as a physical model for fibre-fibre bonds in paper and the wet laminate strength was determined by ninety degree peeling experiments. Key experimental parameters and sources of error were identified.

The mechanism of PVAm paper wet strength enhancement was explored by the wet cellulose delamination ...


Purification And Synthesis Of Pegylated Protein, Xiaojiao Shang 2014 McMaster University

Purification And Synthesis Of Pegylated Protein, Xiaojiao Shang

Open Access Dissertations and Theses

PEGylation, referring to the covalent attachment of poly(ethylene glycol) or PEG to protein, has become the most established technology for improving pharmacokinetic behavior of native proteins, especially the prolongation of circulation half-life in vivo. This thesis focuses on the synthesis and purification of PEGylated proteins.

The conventional way to synthesize PEGylated proteins is in liquid phase batch reaction, which usually causes the formation of significant amount and high diversity of by-products (i.e. di-, tri-, and/or higher-PEGylated forms of a protein). Many chemical and physical ways have been explored to increase the specificity of mono-PEGylated protein. Chemical ways ...


Printing And Characterization Of Inks For Paper-Based Biosensors, Jingyun Wang 2014 McMaster University

Printing And Characterization Of Inks For Paper-Based Biosensors, Jingyun Wang

Open Access Dissertations and Theses

This thesis describes solutions to many of the challenges in the development of paper-based biosensors. Coupling techniques in analytical biochemistry with knowledge of paper science and technology, advances are described in the areas of: the influence of paper surface chemistry on bioactivity; optimizing bioactive ink formulation; the printing of paper supported microfluidic channels; and, the characterization of complex sensors based on printed sol-gel material layers.

The stability of paper-immobilized antibodies under various conditions was first studied using both untreated filter paper and PAE-treated paper. Antibody stability decreased with increasing temperature and relative humidity. Paper treated with PAE had no significant ...


Recovering A Liquid-Lignin Phase From Paper Mill Black Liquors, Julian Velez, Adam Klett, Mark C. Thies 2014 Clemson University

Recovering A Liquid-Lignin Phase From Paper Mill Black Liquors, Julian Velez, Adam Klett, Mark C. Thies

Graduate Research and Discovery Symposium (GRADS)

No abstract provided.


Carbon Fibers Derived From Pan/Bio-Based Bicomponent Precursor, Jing Jin 2014 Clemson University

Carbon Fibers Derived From Pan/Bio-Based Bicomponent Precursor, Jing Jin

Graduate Research and Discovery Symposium (GRADS)

No abstract provided.


Roll-To-Roll Synthesis Of Vertically Aligned Carbon Nanotubes For Electrical Double Layer Capacitors, Margarita R. Arcila-Velez, Jingyi Zhu, Anthony Childress, Mehmet Karakaya, Ramakrishna Podila, Apparao M. Rao, Mark E. Roberts 2014 Clemson University

Roll-To-Roll Synthesis Of Vertically Aligned Carbon Nanotubes For Electrical Double Layer Capacitors, Margarita R. Arcila-Velez, Jingyi Zhu, Anthony Childress, Mehmet Karakaya, Ramakrishna Podila, Apparao M. Rao, Mark E. Roberts

Graduate Research and Discovery Symposium (GRADS)

No abstract provided.


Fabrication And Analysis Of Soy Flour Filled Polyethylene Fibers, Ozgun Ozdemir, Sam Lukubira, Amod Ogale, Paul Dawson 2014 Clemson University

Fabrication And Analysis Of Soy Flour Filled Polyethylene Fibers, Ozgun Ozdemir, Sam Lukubira, Amod Ogale, Paul Dawson

Graduate Research and Discovery Symposium (GRADS)

Fibers composed of soy flour (soy) and linear low density polyethylene (PE) were produced by melt spinning method. The mixing time of soy flour and PE was adjusted to get better dispersion of soy flour inside the matrix. The inclusion of soy decreased tensile modulus by 35% and tensile strength by 30% of the fibers compared with 950 MPa and 43 MPa, respectively, for PE fibers. Strain to failure for soy-PE fibers was 292% where PE fibers have strain to failure at 513%. Tensile properties of soy-PE fibers are comparable to those of pure PE. Even washing did not deteriorated ...


A Memory-Efficient Implementation Of Multi-Period Two- And Multi-Stage Stochastic Programming Models, Bruno Abreu Calfa 2014 Carnegie Mellon University

A Memory-Efficient Implementation Of Multi-Period Two- And Multi-Stage Stochastic Programming Models, Bruno Abreu Calfa

Department of Chemical Engineering

The objective of this paper is to describe a method of implementing multi-period two- and multi-stage Stochastic Programming (SP) models with exogenous uncertainty that is modeling-platform and programming-language independent. The proposed implementation approach generates an implicit extensive form of the SP model in contrast to an explicit formulation, which explicitly accounts for the sequence of decisions, thus introducing redundant variables and constraints in the model. The efficiency of the proposed implementation approach with respect to memory usage, thus problem size, is achieved with the introduction of three sets of auxiliary parameters in the mathematical formulation of the deterministic equivalent stochastic ...


Effect Of Surface Parameters On Interfacial Water Film Behavior, Brittany Glatz, Luke Rhym, Sapna Sarupria 2014 Clemson University

Effect Of Surface Parameters On Interfacial Water Film Behavior, Brittany Glatz, Luke Rhym, Sapna Sarupria

Graduate Research and Discovery Symposium (GRADS)

Vapor-to-liquid and liquid-to-solid transitions on mineral surfaces are the primary pathways for phase transitions in atmospheric water. These phase transitions affect the microphysics of clouds and have significant effects on the weather and climate. Our overall goal is to elucidate the mechanisms through which surfaces affect these transitions, and develop predictive abilities to correlate surface properties to the thermodynamics and kinetics of the phase transitions. In this work, we use molecular dynamics simulations to study the structure, and dynamics of water near kaolinite-like surfaces. Kaolinite is the most abundant mineral dust in the atmosphere. We specifically investigate the effect of ...


Synthesis And Characterization Of Extractive Scintillating Resin For Ultra-Trace-Level Quantification Of Uranium In Aqueous Media, C Duval, V Bliznyuk, A Seliman, T DeVol, S Husson 2014 Clemson University

Synthesis And Characterization Of Extractive Scintillating Resin For Ultra-Trace-Level Quantification Of Uranium In Aqueous Media, C Duval, V Bliznyuk, A Seliman, T Devol, S Husson

Graduate Research and Discovery Symposium (GRADS)

The detection and quantification of radionuclides in aqueous media is of interest to both the Environmental Protection Agency, for matters of public health, and international organizations like the Comprehensive Test Ban Treaty Organization, that use environmental samples to investigate claims of illicit nuclear activities. The current method of quantification involves batch style analytical techniques which utilize bulky instruments. Portable, flow cell detectors utilizing extractive scintillating resin with physically sorbed extractants and fluorophores have been developed; however, this resin shows poor long term stability as the active components leach from the resin over time. There is a need to develop chemically ...


Optimization Of Pyrochlore Catalysts For Dry Reforming Of Methane, Felipe Polo-Garzon, Ming He, David A. Bruce 2014 Clemson University

Optimization Of Pyrochlore Catalysts For Dry Reforming Of Methane, Felipe Polo-Garzon, Ming He, David A. Bruce

Graduate Research and Discovery Symposium (GRADS)

No abstract provided.


Engineering Responsive Hybrid Promoters For Metabolic Engineering In Oleaginous Yeast Yarrowia Lipolytica, Murtaza Shabbir Hussain, Mark A. Blenner 2014 Clemson University

Engineering Responsive Hybrid Promoters For Metabolic Engineering In Oleaginous Yeast Yarrowia Lipolytica, Murtaza Shabbir Hussain, Mark A. Blenner

Graduate Research and Discovery Symposium (GRADS)

No abstract provided.


Analysis Of Solvation Model, Adsorption Site, And Adsorbate Coverage Effects On Adsorption Energies At The Anode In Direct Methanol Fuel Cells, Cameron J. Bodenschatz, Rachel B. Getman 2014 Clemson University

Analysis Of Solvation Model, Adsorption Site, And Adsorbate Coverage Effects On Adsorption Energies At The Anode In Direct Methanol Fuel Cells, Cameron J. Bodenschatz, Rachel B. Getman

Graduate Research and Discovery Symposium (GRADS)

No abstract provided.


Template Free-Synthesis Of Polypyrrole Microtubes For Supercapacitor Electrodes, Kryssia P. Diaz, Mark E. Roberts 2014 Clemson University

Template Free-Synthesis Of Polypyrrole Microtubes For Supercapacitor Electrodes, Kryssia P. Diaz, Mark E. Roberts

Graduate Research and Discovery Symposium (GRADS)

The purpose of this work is to develop a simple, scalable and template-free method to synthesize conducting polymer nano/micro-structures for supercapacitor electrodes. The microstructure and electrochemical properties of structure polypyrrole on various mesh substrates is investigated.


Effect Of Co Adsorption And Coverage On Ethanol Production From Syngas, Anuradha Gundamaraju, Ming He, David A. Bruce 2014 Clemson University

Effect Of Co Adsorption And Coverage On Ethanol Production From Syngas, Anuradha Gundamaraju, Ming He, David A. Bruce

Graduate Research and Discovery Symposium (GRADS)

In the future, the availability of reliable alternative fuels will be crucial for any country to become energy independent. One such alternative is ethanol as it can be used both as a fuel and as a fuel additive. Most of the ethanol produced in the world today is derived from biomass. The biomass feedstocks and fermentation broths used in ethanol production both contain high amounts of water and therefore, the energy efficiency of the process is lessened by product separation processes (azeotropic separation of water and ethanol) that are non-trivial and highly inefficient (due to the evaporation of water). An ...


Development Of Multimodal Membrane Adsorbers For Antibody Purification Using Atom Transfer Radical Polymerization, Juan Wang, Scott M. Husson 2014 Clemson University

Development Of Multimodal Membrane Adsorbers For Antibody Purification Using Atom Transfer Radical Polymerization, Juan Wang, Scott M. Husson

Graduate Research and Discovery Symposium (GRADS)

No abstract provided.


Chapters 5 And 6, Eng-Poh Ng Dr. 2014 SelectedWorks

Chapters 5 And 6, Eng-Poh Ng Dr.

Eng-Poh Ng

No abstract provided.


In-Package Nonthermal Plasma Degradation Of Pesticides On Fresh Produce, N. N. Misra, Shashi Kishor Pankaj, Tony Walsh, Finbarr O'Regan, Paula Bourke, PJ Cullen 2014 Dublin Institute of Technology

In-Package Nonthermal Plasma Degradation Of Pesticides On Fresh Produce, N. N. Misra, Shashi Kishor Pankaj, Tony Walsh, Finbarr O'Regan, Paula Bourke, Pj Cullen

Articles

In-package nonthermal plasma (NTP) technology is a novel technology for the decontamination of foods and biological materials. This study presents the first report on the potential of the technology for the degradation of pesticide residues. A cocktail of pesticides, namely Azoxystrobin, Cyprodinil, Fludioxonil and Pyriproxyfen was tested on strawberries. The concentrations of these pesticides were monitored in priori and post- plasma treatment using GC-MS/MS. An applied voltage and time dependent degradation of the pesticides was observed for treatment voltages of 60, 70 and 80 kV and treatment durations ranging from 1 to 5 min, followed by 24 h in-pack ...


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