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Cours Enzymologie Fondamentale Et Appliquée (Niveau Master 1), Mamoudou H. DICKO, Prof. 2016

Cours Enzymologie Fondamentale Et Appliquée (Niveau Master 1), Mamoudou H. Dicko, Prof.

Pr. Mamoudou H. DICKO, PhD

L'objectif principal de ce cours est de rappeler et donner aux étudiants les connaissances indispensables en enzymologie appliquée, à savoir :
- connaître la structure des enzymes, les méthodes d’extraction, de purification, de dosage et de caractérisation (électrophorèse, zymographie, etc.) des enzymes ;
- comprendre les principes fondamentaux de la cinétique chimique et la cinétique enzymatique y compris le rôle des inhibiteurs et autres effecteurs;
- comprendre les méthodes d’immobilisation des enzymes et leurs conséquences positives ou négatives dans la biocatalyse enzymatique;
- comprendre les différends domaines d’utilisation des enzymes en biochimie analytique, bio-industries, industrie agro-alimentaires, analyses bio-médicales, en diagnostic, etc.


Copper Indium Sulfide Quantum Dots For Light Selective Nanocomposite Thin Films And Solar Cell Applications, Harrison Ward 2016 The University of Western Ontario

Copper Indium Sulfide Quantum Dots For Light Selective Nanocomposite Thin Films And Solar Cell Applications, Harrison Ward

Electronic Thesis and Dissertation Repository

Nanotechnology is allowing the solar energy industry to advance at an accelerating rate, although new materials and processes are required for developing new types of solar cells. Similar to other industries, it is desirable to develop the most environmentally friendly and cost-effective solutions on how to make these next generation materials. Of these new materials, quantum dots (QDs) are of current scientific interest which provide record-breaking increases in efficiency and a new approach for harnessing solar radiation. However, most previous QD work has focused on lead or cadmium based materials, which are not earth friendly and have low thresholds in ...


Computational Fluid Dynamics Simulations And Experiments Of Meltblown Fibrous Media: New Die Designs To Enhance Fiber Attenuation And Filtration Quality, Mohammad Hassan 2016 Selected Works

Computational Fluid Dynamics Simulations And Experiments Of Meltblown Fibrous Media: New Die Designs To Enhance Fiber Attenuation And Filtration Quality, Mohammad Hassan

Mohammad Abouelreesh Hassan

The meltblowing process employs high-speed hot air jets to attenuate polymer streams injected from a die head. In this study, we examine design strategies to control the air flow field below the polymer injection point to achieve higher fiber attenuation and meltblown webs with smaller fiber diameters. Computational fluid dynamics (CFD) simulations for new die configurations show that vertical or inclined air constrictors around the primary air jets keep the centerline air velocity and temperature at their maximum values for 10–15 mm longer below the die face than the reference die. Polymer streams are kept near their melting temperatures ...


Sustainable P2 Design For Batch-Based Specialty Chemical Manufacture, Brigitte Pastore 2016 Rowan University

Sustainable P2 Design For Batch-Based Specialty Chemical Manufacture, Brigitte Pastore

Theses and Dissertations

A case study has been conducted on the reduction of n-methyl-2-pyrrilodone (NMP) solvent waste in the manufacture of polyimide and polybenzoxazole precursors. The evaluation includes the environmental and economic assessment of solvent recovery and substitution strategies. A two-step distillation process proved effective in recovering 95% of the NMP at a purity of 99.97% from the aqueous solvent waste stream. Yearly operating costs were reduced by 83% and total life cycle emissions were reduced by 44%, due to reduction in virgin NMP use and hazardous waste disposal. With capital acquisition, the recovery option would still result in a net present ...


Granulation Of Biochar For Soil Amendment, Breanna H. M. Bowden-Green 2016 The University of Western Ontario

Granulation Of Biochar For Soil Amendment, Breanna H. M. Bowden-Green

Electronic Thesis and Dissertation Repository

Biochar has shown potential as a soil amendment, but is a fine powder that is difficult to handle and would be blown away if applied to soils without modifications. Wet drum granulation of cornstalk biochar using binder solutions of hydroxypropyl methylcellulose was initially investigated, establishing that biochar could be granulated into a form that would be easier to handle and apply effectively to the soil. Biochars from three different feedstocks were then tested along with three binder solutions. The biochar granules were free flowing and relatively strong with a significant yield between a size range of 1 to 4 mm ...


Fabrication Of Micro-Meltblown Filtration Media Using Parallel Plate Die Design, Mohammad A. Hassan 2016 Biax-Fiberfilm Corporation, Cairo University

Fabrication Of Micro-Meltblown Filtration Media Using Parallel Plate Die Design, Mohammad A. Hassan

Mohammad Abouelreesh Hassan

Meltblown fibers are typically produced using a die technology based on the slot concept, an extension of the sheet die technology with a series of holes substituting the center rectangular slot of the sheet die. While this prevalent technology has met with considerable success, an economical, facile design would be desirable. In this study a new parallel plate die concept to fabricate micro-meltblown fibers that offers simplicity, ease of use, and low cost was examined. The new die concept had parallel plates forming channels for polymer melt to flow through with a set of air holes surrounding them. This die ...


Methanation Note.Pdf, João F Gomes 2015

Methanation Note.Pdf, João F Gomes

João F Gomes

Technical note on methanation (results of SYM project)


Sym Executive Summary, João F Gomes 2015

Sym Executive Summary, João F Gomes

João F Gomes

Project SYM Executive Summary


Sorption Of Heavy Metal Ions From Aqueous Solution Using Acid-Treated Avocado Kernel Seeds And Its Ftir Spectroscopy Characterization, Lizbeth L. Díaz-Muñoz, Adrian Bonilla-Petriciolet, Hilda Elizabeth Reynel-Avila, Didilia I. Mendoza-Castillo 2015 Instituto Tecnologico de Aguascalientes

Sorption Of Heavy Metal Ions From Aqueous Solution Using Acid-Treated Avocado Kernel Seeds And Its Ftir Spectroscopy Characterization, Lizbeth L. Díaz-Muñoz, Adrian Bonilla-Petriciolet, Hilda Elizabeth Reynel-Avila, Didilia I. Mendoza-Castillo

Adrian Bonilla-Petriciolet

This study reports the modification of surface chemistry of the avocado kernel seeds (i.e., Persea Americana biomass) using both organic and mineral acids and their application in the heavy metal removal from aqueous solutions. The best conditions for the chemical treatment of this biomass using sulfuric, citric and tartaric acids have been identified using Taguchi experimental designs. The best acid-treated avocado seeds were used in the sorption of heavy metal ions: Cd2+, Cu2+, Ni2+, Pb2+ and Zn2+ from aqueous solutions. Kinetic and equilibrium parameters of heavy metal sorption were determined. FTIR characterization of the modified avocado kernel seeds with ...


Adsorption Of Zinc Ions On Bone Char Using Helical Coil-Packed Bed Columns And Its Mass Transfer Modeling, Jaime Moreno-Pérez, Adrian Bonilla-Petriciolet, Cintia K. Rojas-Mayorga, Didilia I. Mendoza-Castillo, Michele Mascia, Massimiliano Errico 2015 Instituto Tecnologico de Aguascalientes

Adsorption Of Zinc Ions On Bone Char Using Helical Coil-Packed Bed Columns And Its Mass Transfer Modeling, Jaime Moreno-Pérez, Adrian Bonilla-Petriciolet, Cintia K. Rojas-Mayorga, Didilia I. Mendoza-Castillo, Michele Mascia, Massimiliano Errico

Adrian Bonilla-Petriciolet

This study reports the assessment of helical coil-packed bed columns for Zn adsorption on bone char. Zn adsorption breakthrough curves have been obtained using helical coil columns with different characteristics and a comparison has been conducted with respect to the results of straight fixed-bed columns. Results showed that the helical coil adsorption columns may offer an equivalent removal performance than that obtained for the traditional packed bed columns but using a compact structure. However, the coil diameter, number of turns and feed flow appear to be crucial parameters for obtaining the best performance in this packed-bed geometry. A mass transfer ...


Gravitational Search, Monkey And Krill Herd Swarm Algorithms For Phase Stability, Phase Equilibrium And Chemical Equilibrium Problems, Ahmed M.E. Khalil, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet, Ahmed M.E. Khalil, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet 2015 Cairo University

Gravitational Search, Monkey And Krill Herd Swarm Algorithms For Phase Stability, Phase Equilibrium And Chemical Equilibrium Problems, Ahmed M.E. Khalil, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet, Ahmed M.E. Khalil, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

Phase equilibrium calculations (PEC) and phase stability (PS) analysis of reactive and non-reactive systems problems are important for the simulation and design of chemical engineering processes. These problems, which are challenging multi-variable and non-convex, require optimization techniques that are both efficient and effective in finding the solution. Stochastic global optimization algorithms, especially swarm algorithms, are promising tools for such problems. In this study, Monkey Algorithm (MA), Gravitational Search Algorithm (GSA) and Krill Herd Algorithm (KHA) were used to solve phase stability, phase equilibrium and chemical equilibrium problems. We have also studied the effect of adding a local optimizer at the ...


Critical Point Calculations Of Multi-Component Reservoir Fluids Using Nature-Inspired Metaheuristic Algorithms, Moataz N. Shehata, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet, Moataz N. Shehata, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet 2015 Cairo University

Critical Point Calculations Of Multi-Component Reservoir Fluids Using Nature-Inspired Metaheuristic Algorithms, Moataz N. Shehata, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet, Moataz N. Shehata, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

This study introduces the application of nature-inspired metaheuristic algorithms for performing critical point calculations in multicomponent reservoir fluids. These algorithms are Monkey - Krill Herd Hybrid (MAKHA), Intelligent Firefly Algorithm (IFA), Covariance Matrix Adaptation Evolution Strategy (CMAES), Artificial Bee Colony (ABC), Cuckoo Search (CS), Bare Bones Particle Swarm Optimization (BBPSO) and Flower Pollination Algorithm (FPA). Capabilities and limitations of these optimizers have been analyzed using black oil, volatile and condensate reservoir fluids with fifty components. Results showed that BBPSO, IFA and FPA outperformed other nature-inspired methods for critical point calculations in tested fluids. In particular, BBPSO offered the best efficiency-reliability tradeoff ...


Design Analysis Of Fixed-Bed Synergic Adsorption Of Heavy Metals And Acid Blue 25 On Activated Carbon, M.T. Hernandez-Eudave, Adrian Bonilla-Petriciolet, M.R. Moreno-Virgen, C.K. Rojas-Mayorga, R. Tovar-Gomez, M.T. Hernandez-Eudave, Adrian Bonilla-Petriciolet, M.R. Moreno-Virgen, C.K. Rojas-Mayorga, R. Tovar-Gomez 2015 Instituto Tecnologico de Aguascalientes

Design Analysis Of Fixed-Bed Synergic Adsorption Of Heavy Metals And Acid Blue 25 On Activated Carbon, M.T. Hernandez-Eudave, Adrian Bonilla-Petriciolet, M.R. Moreno-Virgen, C.K. Rojas-Mayorga, R. Tovar-Gomez, M.T. Hernandez-Eudave, Adrian Bonilla-Petriciolet, M.R. Moreno-Virgen, C.K. Rojas-Mayorga, R. Tovar-Gomez

Adrian Bonilla-Petriciolet

This study reports the multicomponent adsorption of dye AB25, nickel (Ni2+) and zinc (Zn2+) ions on an activated carbon using binary mixtures of metal and dye, and packed bed columns at different operating conditions. Design parameters of packed bed adsorption columns have been calculated using the breakthrough curves and Thomas model, and an analysis has been performed to determine the effect and magnitude of the synergistic adsorption on the design parameters and adsorbent performance. Results showed that there is a strong synergistic adsorption of heavy metals on activated carbon caused by the presence of dye AB25 in binary mixtures. The ...


Notice On Project Sym (Coordinated By Gsyf With Isel Participation) Published In Expresso, Dated 6fev2016 (In Portuguese), João Gomes 2015 Instituto Superior Engenharia Lisboa

Notice On Project Sym (Coordinated By Gsyf With Isel Participation) Published In Expresso, Dated 6fev2016 (In Portuguese), João Gomes

João F Gomes

Notice on project SYM (coordinated by GSYF with ISEL participation) published in Expresso, dated 6Fev2016 (in Portuguese)


Polyhydroxybutyrate Production In A Photobioreactor Using Spirulina Platensis, Adrianna Mika 2015 The University of Western Ontario

Polyhydroxybutyrate Production In A Photobioreactor Using Spirulina Platensis, Adrianna Mika

Electronic Thesis and Dissertation Repository

Biopolymers and other naturally derived chemicals continue to gain attention over petrochemical based products due to the price volatility of crude oil, increasing need to reduce greenhouse gas emissions and public awareness of environmental issues. Cyanobacterium Spirulina (Arthrospira) platensis, a commercially feasible blue-green alga, is able to synthesize poly(3-hydroxybutyrate) (PHB), a biodegradable and biocompatible polymer, as an energy storage product of photosynthesis directly from CO2. A flat plate photobioreactor (PBR) with LED illumination was designed for the cultivation of S. platensis. Computational fluid dynamics (CFD) software was used to improve airflow uniformity and mixing in the photobioreactor. PHB ...


Slope Stability Enhancement Of An Upstream Tailings Dam: Laboratory Testing And Numerical Modelling, Yazeed A. Alsharedah 2015 The University of Western Ontario

Slope Stability Enhancement Of An Upstream Tailings Dam: Laboratory Testing And Numerical Modelling, Yazeed A. Alsharedah

Electronic Thesis and Dissertation Repository

Mine tailings are the byproduct of mining activities, which need to be disposed of once the ore is extracted. They can be disposed of in either dry or wet forms. The latter is most common with the tailings being disposed of in the form of slurry inside retention structures. The retention structure may be a natural, manmade, or built dam, which is the case in most of nowadays mining locations. In this thesis, improving the stability of an upstream tailings dam using soil additives is investigated. The experimental phase of this study involved laboratory tests conducted to characterize mine tailings ...


Prediction Of Organic Droplet Behavior On A Solid Surface As Influenced By Aqueous Surfactant Solutions, Samuel Morton 2015 University of Tennessee - Knoxville

Prediction Of Organic Droplet Behavior On A Solid Surface As Influenced By Aqueous Surfactant Solutions, Samuel Morton

Samuel A Morton

This dissertation presents a model capable of predicting equilibrium oil droplet contact angles on a solid surface immersed in surfactant solution, a thorough discussion of the effects of surfactant concentration and salt addition on contact angles, and an experimental investigation into the impact of voltage application to the solid surface on oil droplet shape in an aqueous/organic/solid system. The work contained in this dissertation resulted in five journal articles and numerous presentations.

The model applies current theories of surfactant self-assembly, the quasi-chemical approximation for solid surface adsorption, and various aqueous/organic/solid system properties to determine organic droplet ...


Hybrid Aryl-Ether-Ketone And Hyperbranched Epoxy Networks, John Misasi 2015 University of Southern Mississippi

Hybrid Aryl-Ether-Ketone And Hyperbranched Epoxy Networks, John Misasi

Dissertations

In this dissertation, relationships between chemical structures, cure kinetics and network architectures are correlated to bulk mechanical properties for novel, hybrid epoxy-amine networks. The work is split into two primary sections: the first is the synthesis and characterization of multifunctional glassy networks based on aryl-ether-ketone diamine curatives, while the second is based on the synthesis and characterization of hyperbranched epoxy polymers and their resulting networks.

Three aryl-ether-ketone (AEK) diamines of increasing molecular weights were synthesized and used to cure 4,4’-tetraglycidylether of diaminodiphenylmethane (TGDDM); the resulting networks were compared to 4,4’-diaminodiphenyl sulfone cured TGDDM. Architectural differences were ...


Doping Plasmon-Enhanced Tio2 With Zirconia To Improve Solar Energy Harvesting In Dye-Sensitized Solar Cells, Anastasia Pasche 2015 The University of Western Ontario

Doping Plasmon-Enhanced Tio2 With Zirconia To Improve Solar Energy Harvesting In Dye-Sensitized Solar Cells, Anastasia Pasche

Electronic Thesis and Dissertation Repository

Solar energy is a promising solution towards meeting the world’s ever-growing energy demand. Dye-sensitized solar cells (DSSCs) are hybrid organic-inorganic solar cells with potential for commercial application, but are plagued by inefficiency due to their poor sunlight absorption. Silver nanoparticles have been shown to enhance the absorptive properties of DSSCs, but their plasmonic resonance causes local hot spots, resulting in cell deterioration. This thesis studies the mitigation of thermal energy loss of plasmon-enhanced DSSCs by the co-incorporation of zirconia, a well-known thermostabilizer, into the cell’s photoactive material. TiO2 was also synthesized using green bio-sourced solvents in supercritical CO2 ...


Sustainability Assessment For Energy Systems And Chemical Process Industries, Michael J. Matzen 2015 University of Nebraska-Lincoln

Sustainability Assessment For Energy Systems And Chemical Process Industries, Michael J. Matzen

Chemical & Biomolecular Engineering Theses, Dissertations, & Student Research

Sustainability has become an important factor in the chemical process and energy industries with a strong drive for process improvements towards more environmentally conscious solutions. However, there are many ways of defining sustainability and even more ways of trying to determine how sustainable a process is. This work looks into applying a conjunction of tools including; process simulation, multi-criteria decision matrices and life-cycle assessment to more quantitatively determine sustainability metrics. We have applied these tools for the production of electricity, methanol and dimethyl ether. A novel method of electricity production, in chemical looping combustion (CLC), was used that inherently involves ...


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