Engineering Commons^™

Sulfate Free Solutions For Personal Care Applications, Prabhjyot Singh

Advances in Cosmetic Formulation Design [2018]

The personal care market is driven by consumer needs, where natural ingredients, safety awareness and free- from claims are main drivers. Free-from claims are continuing to grow and sulfate-free is a leading claim for this trend, particularly in the shampoo and body wash market. Sulfate-free cleansers are growing more than 8% CAGR. Sulfate- free surfactants present many challenges in product performance in comparison to sulfates, mainly in providing efficient thickening and desirable sensory and lather performance. Another challenge is to meet the crucial needs of the formulator by providing ingredients that are sustainable, able to be cold processed and delivered …

Novel High-Performance Ingredients Based On Functionalized Polysaccharides – The Role Of Enzymatic Catalysis., Stefan Ulvenlund

Advances in Cosmetic Formulation Design [2018]

Polysaccharides are interesting starting materials in the design of high-performance cosmetic ingredients, not only because of their generally low toxicity and “green” profile, but also because of their wide and exciting propensity to form complex self-aggregated structures. These structures have direct relevance for formulation science, since they provide us with the means to tailor and optimize rheological characteristics, solubilization efficiency, emulsification and other critical attributes of a formulation. However, in order to fully exploit this potential of polysaccharide-based materials we need not only the ability to extract, purify and refine them on an industrial scale. We also need cost-efficient tools …

Natsurfact: Progress In Commercializing Rhamnolipids, Daniel Derr

Advances in Cosmetic Formulation Design [2018]

NatSurFact is a rhamnolipid-based biosurfactant ingredient for the cosmetics industry developed by Logos Technologies. Rhamnolipids are a member of the glycolipid class of biosurfactants. They are made up of a rhamnose sugar head group and medium chain length 3-hydroxy fatty acid tails. Their structure was first elucidated in 1949 and they have been studied for myriad applications both academically and commercially since. While their properties as an anionic surfactant in the salt form are attractive – natural, mild, high foaming, high cleansing – they are not sold yet in appreciable commercial quantities. To bring rhamnolipids to market, Logos has focused …

15th International Material Handling Research Colloquium Program, College Industry Council On Material Handling Education, Mhi

International Material Handling Research Colloquium

Official Conference Program

Incorporation Of Anionic Monomer To Tune The Reversible Catechol-Boronate Complex For Ph Responsive, Reversible Adhesion, Ameya R. Narkar, Bruce P. Lee

Department of Biomedical Engineering Publications

Up to 30 mol% of acrylic acid (AAc) was incorporated into a pH responsive smart adhesive consisting of dopamine methacrylamide (DMA) and 3-acrylamido phenylboronic acid (APBA). FTIR spectroscopy and rheometry confirmed that the incorporation of AAc shifted the pH of catechol-boronate complexation to a more basic pH. Correspondingly, adhesive formulations with elevated AAc contents demonstrated strong adhesion to quartz substrate at a neutral to mildly basic pH (pH 7.5-8.5) based on Johnson-Kendall-Roberts (JKR) contact mechanics test. When pH was further increased to pH 9.0, there was a drastic reduction in the measured work of adhesion (18 and 7 fold reduction …

Reliability And Uniformity Enhancement In 8t-Sram Based Pufs Operating At Ntc, Pramesh Pandey, Asmita Pal, Koushik Chakraborty, Sanghamitra Roy

Electrical and Computer Engineering Faculty Publications

SRAM-based PUFs (SPUFs) have emerged as promising security primitives for low-power devices. However, operating 8T-SPUFs at Near-Threshold Computing (NTC) realm is plagued by exacerbated process variation (PV) sensitivity which thwarts their reliable operation. In this paper, we demonstrate the massive degradation in the reliability and uniformity characteristics of 8T-SPUF. By exploiting the opportunities bestowed by schematic asymmetry of 8T-SPUF cells, we propose biasing and sizing based design strategies. Our techniques achieve an immense improvement of more than 55% in the percentage of unreliable cells and improves the proximity to ideal uniformity by 82%, over a baseline NTC 8T-SPUF with no …

Query-Constraint-Based Mining Of Association Rules For Exploratory Analysis Of Clinical Datasets In The National Sleep Research Resource, Rashmie Abeysinghe, Licong Cui

Computer Science Faculty Publications

Background: Association Rule Mining (ARM) has been widely used by biomedical researchers to perform exploratory data analysis and uncover potential relationships among variables in biomedical datasets. However, when biomedical datasets are high-dimensional, performing ARM on such datasets will yield a large number of rules, many of which may be uninteresting. Especially for imbalanced datasets, performing ARM directly would result in uninteresting rules that are dominated by certain variables that capture general characteristics.

Methods: We introduce a query-constraint-based ARM (QARM) approach for exploratory analysis of multiple, diverse clinical datasets in the National Sleep Research Resource (NSRR). QARM enables rule mining on …

Influence Of Stress Triaxiality On Fracture Ductility For Stereo Lithography, Anjali Sandip, Ravi Kiran Yellavajjala

Mechanical Engineering Posters and Presentations

Stress triaxiality is one of the most important factors that controls fracture ductility. The objective of this study was to investigate the influence of stress triaxiality on fracture ductility for specimens’ printed using stereolithography (SL). Dog bone shape specimens were printed using Formlabs® Form 2 Desktop SLA 3D printer. The specimens were built layer by layer with the help of this 3D printer. Each layer of liquid photopolymer is solidified through a computer-controlled ultraviolet (UV) light source with a laser spot size of 140 𝜇m. A photopolymer resin supplied by the manufacturer which comprised of a proprietary mix of Methacrylated …

59th Annual Rocky Mountain Conference On Magnetic Resonance

Rocky Mountain Conference on Magnetic Resonance

Final program, abstracts, and information about the 59th annual meeting of the Rocky Mountain Conference on Magnetic Resonance, co-endorsed by the Colorado Section of the American Chemical Society and the Society for Applied Spectroscopy. Held in Snowbird, Utah, July 22-27, 2018.

Compound Design Process - To A Better Start, Aurora Costache, Gabor Imre, Ivan Solt, Akos Tarcsay, Aurora Costache

Advances in Cosmetic Formulation Design [2018]

Molecule and formulation design is an information demanding activity, since all relevant knowledge is to be accessible within a single space and requires synchronized application of computational models to assist decision making on synthesis candidates. Our study aims to evaluate a software platform coping with this complexity (Marvin Live). The tool provides central management of innovative ideas and helps triage them based on predicted properties and available knowledge collected from a variety of sources. The calculated properties span physico-chemical descriptors, combined metrics, 3D overlay and modelling results, with the ability to check if they are compliant with local and international …

Conference Program, Samiul Amin, Ponisseril Somasundaran

Advances in Cosmetic Formulation Design [2018]

No abstract provided.

Research On The Development Of Energy-Efficient Binders For Modern Construction, G. Karimov, N. Bakhriyev

Problems of Architecture and Construction

An analysis of the world economic trends in capital construction, in particular in the production of binding materials and cement, shows that the use of resources and energy-saving, innovative technologies is a requirement of the present and future. The article presents ideas and experimental developments of energy-saving nanotechnologies, innovative methods for obtaining astringent low water requirements.

Spatial Calculation Of The Steel Frame Of A Multi-Storey Building, G. Freedman

Problems of Architecture and Construction

In paper the instance of calculation of the space steel framework of a multistorey building in altitude of 8 floors with use of the personal computer LYRE is observed. A framework - communication has system with an internal kernel of rigidness. All aspects of loadings, including wind and seismic are considered. Selection of cross-sections of elements of a framework in the application of LIRA-STK is executed.

The Dependence Of Heat Transfer Resistance Of Many Corrugated Small Foam Blocks On The Number And Dimensions Of Hollows, G. Shukurov, B. Turaboyev, Sh. Musayev

Problems of Architecture and Construction

In paper results of theoretical heat-physical researches are resulted and dependences of resistance to a heat transfer of the small block from foam concrete from quantity of through hollows, the form of their arrangement and from their sizes in the block are defined. Besides it is offered the empirical formula for definition of resistance of a heat transfer of the small block from foam concrete depending on quantity of through hollows.

Using The Method Of "Imitation Modeling” In Obtaining Various Fractional Fillers By Grinding Large Stones And Rocks, B. Saidmuratov, Kh. Gulamova

Problems of Architecture and Construction

In paper questions of processes of crushing and screening from mountain inert mucks, their physical essence are observed. On the basis of existing theories of crushing and levitating of many scientists the leading-out is drawn. The circuit design for optimization of processes of grinding-sorting knot is spent.

Seismic Resistance Issues In Collapsing Of Khiva Minarets, G. Durdiyeva, A. Zargarov, E. Salayev, T. Fozilov

Problems of Architecture and Construction

To identify the technical state of constructions of the minaret Islam Khodja, located in Ichan-Kala of Khiva, engineering survey was carried out on its load-bearing structures. This article touches upon the issue of seismic stability of Islam Khoja minaret. Full-scale monitoring and researches of architectural monuments of Khorezm have shown that the ancient masters-architects were acquainted with quite various destructive effects of earthquakes.

Modern Roofing Materials Based On Modified Bitumen, I. Kasimov

Problems of Architecture and Construction

Information on the further development of the building industry in Uzbekistan and also lacks and ways of improvement of process of technology and an operating ability roofing coatings with application structure-forming and polymeric additives are resulted. The analysis of research has shown that now the most effective modifiers of bitumen are structure-forming additives, polymers thermolayers, elastomeric (rubbers), thermoplastic basically synthetic.

Heat-Physical Calculation Of Constructions Of Building Foundations According To The Requirements Of Heat Protect Rate Of Buildings, E. Tulakov, Sh. Sirojiddinov

Problems of Architecture and Construction

Quite often, the foundations are combined with the walls of basements. Their reliable operation can be ensured only in the presence of thermal insulation of external structures in contact with the ground. The need for insulation is due to the fact that heat loss through the underground part of the building in some cases up to 20% of the total heat loss. In the presence of a heated basement, insulation will protect the walls of the basement from freezing, will help prevent condensation, dampness and mold development.

Including Farmer Irrigation Behavior In A Sociohydrological Modeling Framework With Application In North India, Jimmy O’Keeffe, Simon Moulds, Emma Bergin, Nick Brozovic, Ana Mijic, Wouter Buytaert

Daugherty Water for Food Global Institute: Faculty Publications

Understanding water user behavior and its potential outcomes is important for the development of suitable water resource management options. Computational models are commonly used to assist water resource management decision making; however, while natural processes are increasingly well modeled, the inclusion of human behavior has lagged behind. Improved representation of irrigation water user behavior within models can provide more accurate and relevant information for irrigation management in the agricultural sector. This paper outlines a model that conceptualizes and proceduralizes observed farmer irrigation practices, highlighting impacts and interactions between the environment and behavior. It is developed using a bottom-up approach, informed …

Tio2 Assisted Photodegradation For Low Substrate Concentrations And Transition Metal Electron Scavengers, Hassan A. Alsaud, Ahmed E. Abibat, Roger Painter, Lonnie Sharpe, Samuel Keith Hargrove

Mechanical and Manufacturing Engineering Faculty Research

Some contaminants of emerging concern (CECs) are known to survive conventional wastewater treatment, which introduces them back to the environment, allowing them to potentially cycle into drinking water. This is especially concerning because of the inherent ability of some CECs to induce physiological effects in humans at very low doses. Advanced oxidation processes (AOPs) such as TiO2-based photocatalysis are of great interest for addressing CECs in aqueous environments. Natural water resources often contain dissolved metal cation concentrations in excess of targeted CEC concentrations. These cations may significantly adversely impact the degradation of CECs by scavenging TiO2 surface generated electrons. Consequently, …

How Much Privacy Do We Have Today? A Study Of The Life Of Marc Mezvinsky, Miguel Mares, Salomon Gilles, Brian D. Gobran, Dan Engels

SMU Data Science Review

In this paper, we present a case study evaluating the level of information available about an individual through public, Internet-accessible sources. Privacy is a basic tenet of democratic society, but technological advances have made access to information and the identification of individuals much easier through Internet-accessible databases and information stores. To determine the potential level of privacy available to an individual in today’s interconnected world, we sought to develop a detailed history of Marc Mezvinsky, a semi-public figure, husband of Chelsea Clinton, and son of two former members of the United States House of Representatives. By utilizing only publicly and …

Fuel Flow Reduction Impact Analysis Of Drag Reducing Film Applied To Aircraft Wings, Damon Resnick, Chris Donlan, Nimish Sakalle, Cody Pinkerman

SMU Data Science Review

In this paper, we present an analysis of flight data in order to determine whether the application of the Edge Aerodynamix Conformal Vortex Generator (CVG), applied to the wings of aircraft, reduces fuel flow during cruising conditions of flight. The CVG is a special treatment and film applied to the wings of an aircraft to protect the wings and reduce the non-laminar flow of air around the wings during flight. It is thought that by reducing the non-laminar flow or vortices around and directly behind the wings that an aircraft will move more smoothly through the air and provide a …

Biomedical Engineering - An Art Or A Science?, Sowmya Anjur

Faculty Publications & Research

Students discussed recent advances in technology and classified them as belonging to science or engineering. Students were introduced to the human heart and its mechanics, after which they brainstormed in groups to build their own life-sized heart models, choosing from the materials provided and demonstrated their working models to each other. Students were encouraged to create "diseases" in their heart models and explain how they would correlate this to "real'life" experiences. Students were also introduced to my newest project, arduino heart rate monitors and asked to suggest creative projects that they could work on in the near future.

Examination Of Factors Influencing Fcg In Legacy Aluminum Alloys, Sarah E. Galyon Dorman, Scott A Fawaz, Justin W Rausch

Stress-Assisted Corrosion Damage V

In work sponsored by the Office of Naval Research a corrosion fatigue test method to better replicate real world corrosion conditions using salt film, relative humidity, ozone and UV-light, is being developed [1]. This method is being used to evaluate the effect of atmospheric corrosion conditions in AA7075-T651 with inhibitive coatings including epoxy chromate and three chromate replacement coatings (water and epoxy based rare earth primers and an aluminum rich primer). The corrosion fatigue results are being paired with leaching studies under traditional immersion and atmospheric conditions on the primers to determine how the leaching rates relate to the ability …

Phase Equilibrium Modelling And Implications For P-T Determinations Of Medium-Temperature Uhp Eclogites, North Qaidam Terrane, China, David Hernández‐Uribe, Chris G. Mattinson, Jianxin Zhang

All Faculty Scholarship for the College of the Sciences

In contrast to low-T eclogites (garnet growth zoning preserved) or high-T eclogites (garnet diffusionally homogenized at peak conditions), medium-temperature eclogites pose additional challenges to P-T determinations due to the partial preservation of garnet zoning. The Dulan area, in the southeastern part of North Qaidam ultrahigh-pressure terrane, exposes minor eclogites hosted by ortho- and paragneisses. Four fresh, medium-temperature eclogites contain the paragenesis Grt+Omp+Rt+Qz/Coe+Ph +/- Ky +/- Zo. In all samples, garnet X-Mg shows little zoning, suggesting diffusional modification, and precludes the use of pyrope+almandine+grossular isopleth intersections to determine a P-T path. However, in one sample, sharp zoning in grossular content suggests …

A Rheometry Method To Assess The Evaporation-Induced Mechanical Strength Development Of Polymer Solutions Used For Membrane Applications, Eduard Caicedo Casso, Jessica L Sargent, Rachel M. Dorin, Ulrich B. Wiesner, William A. Phillip, Bryan M. Boudouris, Kendra Erk

School of Materials Engineering Faculty Publications

Rotational and oscillatory shear rheometry were used to quantify the flow behavior under minimal and significant solvent evaporation conditions for polymer solutions used to fabricate isoporous asymmetric membranes by the self-assembly and non-solvent induced phase separation (SNIPS) method. Three different A-B-C triblock terpolymer chemistries of similar molar mass were evaluated: polyisoprene-^-polystyrene-6-poly(4-vinylpyridine) (ISV); polyisoprene-6- polystyrene-6-poly(V,A-dimethylacrylamide) (ISD); and polyisoprene-Z>-polystyrene-h-poly(fer/- butyl methacrylate) (ISB). Solvent evaporation resulted in the formation of a viscoelastic film typical of asymmetric membranes. Solution viscosity and film viscoelasticity were strongly dependent on the chemical structure of the triblock terpolymer molecules. A hierarchical magnitude (ISV>ISB>ISD) was observed …

Dna Identification Of Polyculture, Andrew Schuler

Energize New Mexico (NSF EPSCoR Track 1 IV)

DNA sequencing of algae polyculture growing in oilfield produced water. It is dominated by the algae species Parachlorella kessleri and Cyanobacterium aponinum.

V. Dean Adams Retires From Usu’S College Of Engineering, Usu College Of Engineering

College of Engineering News

Students, faculty and staff members at Utah State University extend their heartfelt congratulations and farewell to Dr. V. Dean Adams who last month officially retired from his role as Executive Associate Dean of the College of Engineering.

Transition From Small To Large Cracks In Ti-6al-4v Specimens, Emanuele Vincenzo Arcieri, Sergio Baragetti, Emanuele Borzini

Stress-Assisted Corrosion Damage V

Light alloys allow us to have light components with interesting mechanical features. Ti-6Al-4V is a bimodal titanium alloy employed in aerospace, automotive, maritime and biomedical applications. This alloy has also a good corrosion strength which can be reduced by damages on the passivating surface layer. These damages can be due to an inadequate adhesion of the surface layer, variable loads and interactions with aggressive media [1,2].

For these reasons, quasi-static and fatigue tests on Ti-6Al-4V specimens in different inert, aggressive and very aggressive environments were carried out in the past. Air, air + beeswax coating, paraffin oil, 3.5wt.% NaCl-water solution …

Molecular Dynamics Simulation Study On The Possible Factors Affecting Stability Of Ods Steel, M. Mustafa Azeem, Zhongyu Li, Qingyu Wang, Abid Hussian

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Oxide-dispersed-strengthened (ODS) steel has excellent mechanical, thermodynamic and radiation resistant properties, which makes it an important candidate material for high-Temperature reactors applications. Radiation stability of oxide is very important to study at the atomic level. In present case molecular dynamics (MD) simulation is used to study stabilities of Y₂O₃ particles in ODS steel as a function of particle sizes. The size dependence is obvious for particle sizes larger than 2.8 nm. Furthermore, the stabilities depend on charges of Y and O atoms.