The Flow Reactor Technology As A Modern Synthetic Tool For Preparation Of Pd/Fe3o4 Nanoparticles As A High Efficient Magnetic Catalyst For Co Oxidation,
2018
The British University in Egypt
The Flow Reactor Technology As A Modern Synthetic Tool For Preparation Of Pd/Fe3o4 Nanoparticles As A High Efficient Magnetic Catalyst For Co Oxidation, Hany A. Elazab
Chemical Engineering
No abstract provided.
Cysteine As An Eco-Friendly Corrosion Inhibitor,
2018
The British University in Egypt
Cysteine As An Eco-Friendly Corrosion Inhibitor, Hany A. Elazab Dr
Chemical Engineering
In this paper, the aim was finding the most efficient corrosion inhibitor for mild steel placed in a 0.5M Sulfuric acid. The comparison was implemented between Cysteine (an eco-friendly corrosion inhibitor) and 4 different Ions-Cysteine Inhibitors (Copper- Cysteine, Nickel-Cysteine, Iron-Cysteine, and Cobalt-Cysteine). The solutions were prepared and evaluated while placed with a working electrode of mild steel with a copper rod attached to its end. To determine the best eco-friendly corrosion inhibitors two experiments were implemented: Electrochemical Impedance Spectra, and Linear Polarization. By the end of the experiment it was found that Copper- Cysteine was the most efficient eco-friendly corrosion …
A Nonlinear Systems Framework For Cyberattack Prevention For Chemical Process Control Systems,
2018
Wayne State University
A Nonlinear Systems Framework For Cyberattack Prevention For Chemical Process Control Systems, Helen Durand
Chemical Engineering and Materials Science Faculty Research Publications
Recent cyberattacks against industrial control systems highlight the criticality of preventing future attacks from disrupting plants economically or, more critically, from impacting plant safety. This work develops a nonlinear systems framework for understanding cyberattack-resilience of process and control designs and indicates through an analysis of three control designs how control laws can be inspected for this property. A chemical process example illustrates that control approaches intended for cyberattack prevention which seem intuitive are not cyberattack-resilient unless they meet the requirements of a nonlinear systems description of this property.
Suitability Of Active And Intelligent Packaging For Local And Organic Food – A Case Study In Southern Finland,
2018
VTT Technical Research Centre of Finland Ltd
Suitability Of Active And Intelligent Packaging For Local And Organic Food – A Case Study In Southern Finland, Sara Paunonen, Marja Pitkänen, Mika Vähä-Nissi, Ville Leminen, Mika Kainusalmi
Journal of Applied Packaging Research
This study explores the suitability of innovative packaging for local and organic food. Attitudes and opinions in local and organic food chains in Southern Finland were collected via eighteen semi-structural interviews. The respondents were small-scale producers and processors of fish, meat, berries, and mushrooms, wholesalers, retailers, and institutional kitchens. The aim of this study was to understand factors promoting and preventing the penetration of innovative packaging solutions into the organic and local food market. A clear majority (89%) of respondents considered active and intelligent solutions to be equally suitable for local and organic food as for conventional food. However, less …
Measuring Up: Engineering Stronger And Faster Cardiomyocytes,
2018
Brigham Young University
Measuring Up: Engineering Stronger And Faster Cardiomyocytes, Kaitlyn Mcentire, Dr. Alonzo Cook
Journal of Undergraduate Research
If a heartbeat connotes life, then cardiomyocytes are the life givers. When heart disease results in cardiomyocyte death, however, these life-giving, beating cells are unable to reproduce, and portions of the heart irreversibly die. Despite modern technology and developments in heart disease treatment and prevention, heart disease remains the number one cause of death in America. With an inability to meet an ever-increasing demand for heart transplants, any potential alternative must be pursued.
Differentiation Of Kidney Progenitors Using Induced Pluripotent Stem Cells And Conditioned Media Of Renal Cortical Tubular Epithelial Cells,
2018
Brigham Young University
Differentiation Of Kidney Progenitors Using Induced Pluripotent Stem Cells And Conditioned Media Of Renal Cortical Tubular Epithelial Cells, Steven Passey, Dr. Alonzo Cook
Journal of Undergraduate Research
According to the National Kidney Foundation, 26 million American adults have kidney disease, 47,000 Americans died from kidney disease in 2013, and over 100,000 people await kidney transplants. Current treatment of kidney failure includes dialysis and kidney transplant. Unfortunately, those undergoing dialysis may experience fatigue and other complications. In addition, there is a vast shortage of available kidneys for transplant.
Equilibration Of Chloride Ions In Concrete Bridge Decks After Rehabilitation Using Hydro-Demolition And Concrete Overlay,
2018
Brigham Young University
Equilibration Of Chloride Ions In Concrete Bridge Decks After Rehabilitation Using Hydro-Demolition And Concrete Overlay, Elizabeth Newbill, Dr. Spencer Guthrie
Journal of Undergraduate Research
In cold regions like northern Utah, harsh winters can lead to decreases in the service life of concrete bridge decks. Chloride-based deicing salts, which are commonly used to remove snow and ice from the surface of concrete bridge decks during winter months, are of particular concern. Even in uncracked concrete, chloride ions can diffuse into the bridge deck and eventually lead to corrosion of the embedded reinforcing steel. When chlorides corrode the steel, expansive rust forms, which causes cracks to form in the deck. These cracks allow for greater chloride ingress, accelerating the corrosion and deterioration processes within the bridge …
Hips Turbulent Flow Modeling For High Schmidt Number Flow A Novel Approach To An Old Problem,
2018
Brigham Young University
Hips Turbulent Flow Modeling For High Schmidt Number Flow A Novel Approach To An Old Problem, Joshua Frei, Dr. David Lignell
Journal of Undergraduate Research
The whorls and vortices of smoke plumes, churning waterfalls, and crashing waves have a captivating sense of mystery about them. This chaotic, seemingly random fluid motion is known as turbulent flow, and it is ubiquitous both in day-to-day life and in engineering problems. Despite the many advances in technology, much of turbulence remains a mystery. It has been called the most important unsolved problem in physics [1].
Hierarchal Parcel Swapping (Hips) A Comprehensive Multiscale Subgrid Model For Turbulent Reacting Flow,
2018
Brigham Young University
Hierarchal Parcel Swapping (Hips) A Comprehensive Multiscale Subgrid Model For Turbulent Reacting Flow, Justin Ward, Dr. David Lignell
Journal of Undergraduate Research
The purpose of this project is to address the unmet need for a comprehensive, multiscale, regime- and fuel-independent turbulent reacting model by using a novel, physics-based strategy called Hierarchal Parcel Swapping (HiPS). Turbulent flow has been called the most important unsolved problem of classical physics. Modeling turbulent flow is extremely important due to the fact that nearly all flows in the real world are turbulent. Though the exact details of turbulent flow are not of great importance to an engineer, the effect turbulence has on chemical reactions and the overall chemical properties is vital. The solution to the turbulence problem …
Hand-Powered Washing Machine For The Developing World,
2018
Brigham Young University
Hand-Powered Washing Machine For The Developing World, Chris Bailey, Sean Larson, Megan Peffer, Sarah Ann Skousen, Judith Westwood, Dr. Randy Lewis
Journal of Undergraduate Research
Many countries still hand wash all their clothing. The community of the Uros Islands in Peru is no exception. Our goal was to develop a hand powered washing machine that will be useful to and improve the quality of life of the Uru people. The washing machine must be built out of materials that are inexpensive and readily available to the community. It must also be simple enough for the people to perform any necessary repairs. Furthermore, the final washing machine system could be implemented any developing area with similar needs.
Engineering Metal-Ligand Interface For Selective Electrochemical Carbon Dioxide Reduction,
2018
Louisiana State University and Agricultural and Mechanical College
Engineering Metal-Ligand Interface For Selective Electrochemical Carbon Dioxide Reduction, Yuxin Fang
LSU Doctoral Dissertations
Unsustainable exploitation of fossil fuel and its massive greenhouse gas emission necessitates the development in alternative energy sources. Chemical fuels (CH3OH or C2H5OH) outperform other choices, such as batteries for their high energy densities, which is key to portability. Electrochemical reduction of CO2is capable of producing a wide range of valuable fuels (Syngas, formic acid, methane and methanol, etc.). Converting CO2into carbon-based fuels further closes the carbon neutral cycle, which contributes to the effort in reducing global CO2emission. Integration of organic ligands with transition metals shows great potential …
Rapid Biosensor Screening Blood And Urine,
2018
Brigham Young University
Rapid Biosensor Screening Blood And Urine, Rebecca Whitney Bills, Dr. Bradley Bundy
Journal of Undergraduate Research
Endocrine Disrupting Chemicals (EDCs) have led to worldwide health problems, including cancers, developmental disorders, and reproductive disorders. A recent study estimates that annual health and economic costs caused by EDCs in the European Union is $200 Billion and that the costs are even greater in the US (1). This is largely due to the extensive number of undetected Endocrine Disrupting Chemicals (EDCs) that we come into contact with on a daily basis. EDCs have been found in dietary, environmental, and household chemicals. Despite this only a handful of EDCs have been characterized. The purpose of this project is to optimize …
Investigating The Agricultural Applications Of Acryl Amide Based Hydrogel,
2018
The British University in Egypt
Investigating The Agricultural Applications Of Acryl Amide Based Hydrogel, Hany A. Elazab Dr
Chemical Engineering
Hydrogel is classified as one of the most effective materials due to its widely used applications either in tissue or agriculture engineering. This scientific research aims to investigate the potential applications of hydrogels in the field of desert agriculture in dry places. In this research hydrogel was prepared under several conditions in order to evaluate and optimize the conditions. The research included optimiz-ing several factors including cross-linking agent, water temperatures and pH. The potential agricultural applications of hydrogel were also investigated.
Self-Cleaning Nanocomposite Membranes With Phosphorene-Based Pore Fillers For Water Treatment,
2018
University of Kentucky
Self-Cleaning Nanocomposite Membranes With Phosphorene-Based Pore Fillers For Water Treatment, Joyner Eke, Katherine Elder, Isabel Escobar
Chemical and Materials Engineering Faculty Publications
Phosphorene is a two-dimensional material exfoliated from bulk phosphorus and it possesses a band gap. Specifically, relevant to the field of membrane science, the band gap of phosphorene provides it with potential photocatalytic properties, which could be explored in making reactive membranes that can self-clean. The goal of this study was to develop an innovative and robust membrane that is able to control and reverse fouling with minimal changes in membrane performance. To this end, for the first time, membranes have been embedded with phosphorene. Membrane modification was verified by the presence of phosphorus on membranes, along with changes in …
Creation Of Non-Electric Cooling System For Food Preservation In Peru,
2018
Brigham Young University
Creation Of Non-Electric Cooling System For Food Preservation In Peru, Eleanor Ott, Dr. Randy Lewis
Journal of Undergraduate Research
Food preservation is an issue in third-world countries around the world where electricity and monetary means are not present to maintain a modern refrigerator. The short shelf life of unrefrigerated food items creates waste, requires time and energy with frequent trips to buy food, and lowers quality of life. Multiple solutions for this problem have been devised which are principally applicable in Asia and Africa. Implementation of these solutions has increased shelf-life of perishable foods and eliminated the need for daily trips to the market for food. A natural consequence has been increased profits, more educational opportunities for women, and …
Statistically Guided Synthesis Of Mov- Based Mixed Oxide Catalysts For Ethane Partial Oxidation,
2018
University of South Carolina - Columbia
Statistically Guided Synthesis Of Mov- Based Mixed Oxide Catalysts For Ethane Partial Oxidation, Juan D. Jimenez, Kathleen Mingle, Teeraya Bureerug, Cun Wen, Jochen Lauterbach
Faculty Publications
The catalytic performance of Mo8V2Nb1-based mixed-oxide catalysts for ethane partial oxidation is highly sensitive to the doping of elements with redox and acid functionality. Specifically, control over product distributions to ethylene and acetic acid can be afforded via the specific pairing of redox elements (Pd, Ni, Ti) and acid elements (K, Cs, Te) and the levels at which these elements are doped. The redox element, acid element, redox/acid ratio, and dopant/host ratio were investigated using a three-level, four-factor factorial screening design to establish relationships between catalyst composition, structure, and product distribution for ethane partial oxidation. Results show that the balance …
Statistically Guided Synthesis Of Mov-Based Mixed-Oxide Catalysts For Ethane Partial Oxidation,
2018
University of South Carolina - Columbia
Statistically Guided Synthesis Of Mov-Based Mixed-Oxide Catalysts For Ethane Partial Oxidation, Juan D. Jimenez, Kathleen Mingle, Teeraya Bureerug, Cun Wen, Jochen A. Lauterbach
Faculty Publications
The catalytic performance of Mo8V2Nb1-based mixed-oxide catalysts for ethane partial oxidation is highly sensitive to the doping of elements with redox and acid functionality. Specifically, control over product distributions to ethylene and acetic acid can be afforded via the specific pairing of redox elements (Pd, Ni, Ti) and acid elements (K, Cs, Te) and the levels at which these elements are doped. The redox element, acid element, redox/acid ratio, and dopant/host ratio were investigated using a three-level, four-factor factorial screening design to establish relationships between catalyst composition, structure, and product distribution for ethane partial oxidation. Results show that the balance …
Atomically Dispersed Pd On Nanodiamond/Graphene Hybrid For Selective Hydrogenation Of Acetylene,
2018
Chinese Academy of Sciences
Atomically Dispersed Pd On Nanodiamond/Graphene Hybrid For Selective Hydrogenation Of Acetylene, Fei Huang, Yuchen Deng, Yunlei Chen, Xiangbin Cai, Mia Peng, Zhimin Jia, Pengju Ren, Dequan Xiao, Xiaodong Wen, Ning Wang, Hongyang Liu, Ding Ma
Chemistry and Chemical Engineering Faculty Publications
An atomically dispersed palladium (Pd) catalyst supported onto a defective nanodiamond-graphene (ND@G) is reported here for selective hydrogenation of acetylene in the presence of abundant ethylene. The catalyst exhibits remarkable performance for the selective conversion of acetylene to ethylene: high conversion (100%), ethylene selectivity (90%), and good stability (i.e., steady for at least 30 hours). The unique struc-ture of the catalyst (i.e., atomically dispersion of Pd atoms on graphene through Pd-C bond anchoring) ensure the facile desorption of ethylene against the over-hydrogenation of ethylene to undesired ethane, which is the key for the outstanding selectivity of the catalyst.
Shape-Based Separation Of Micro-/Nanoparticles In Liquid Phases,
2018
Missouri University of Science and Technology
Shape-Based Separation Of Micro-/Nanoparticles In Liquid Phases, Behrouz Behdani, Saman Monjezi, Mason J. Carey, Curtis G. Weldon, Jie Zhang, Cheng Wang, Joontaek Park
Mechanical and Aerospace Engineering Faculty Research & Creative Works
The production of particles with shape-specific properties is reliant upon the separation of micro-/nanoparticles of particular shapes from particle mixtures of similar volumes. However, compared to a large number of size-based particle separation methods, shape-based separation methods have not been adequately explored. We review various up-to-date approaches to shape-based separation of rigid micro-/nanoparticles in liquid phases including size exclusion chromatography, field flow fractionation, deterministic lateral displacement, inertial focusing, electrophoresis, magnetophoresis, self-assembly precipitation, and centrifugation. We discuss separation mechanisms by classifying them as either changes in surface interactions or extensions of size-based separation. The latter includes geometric restrictions and shape-dependent transport …
A Spatio-Temporal Model Reveals Self-Limiting Fcɛri Cross-Linking By Multivalent Antigens,
2018
Missouri University of Science and Technology
A Spatio-Temporal Model Reveals Self-Limiting Fcɛri Cross-Linking By Multivalent Antigens, Md Shahinuzzaman, Jawahar Khetan, Dipak Barua
Chemical and Biochemical Engineering Faculty Research & Creative Works
Aggregation of cell surface receptor proteins by multivalent antigens is an essential early step for immune cell signalling. A number of experimental and modelling studies in the past have investigated multivalent ligand-mediated aggregation of IgE receptors (FcɛRI) in the plasma membrane of mast cells. However, understanding of the mechanisms of FcɛRI aggregation remains incomplete. Experimental reports indicate that FcɛRI forms relatively small and finite-sized clusters when stimulated by a multivalent ligand. By contrast, modelling studies have shown that receptor cross-linking by a trivalent ligand may lead to the formation of large receptor superaggregates that …
