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Articles 11341 - 11370 of 11461
Full-Text Articles in Physical Sciences and Mathematics
Synthesis Of Al2tio5 And Its Effect On The Properties Of Chitosan-Nh4scn Polymer Electrolytes, Siti Rohana Majid, Hassan F., Woo H. J., Aziz N. A., Kufian M. Z.
Synthesis Of Al2tio5 And Its Effect On The Properties Of Chitosan-Nh4scn Polymer Electrolytes, Siti Rohana Majid, Hassan F., Woo H. J., Aziz N. A., Kufian M. Z.
Siti Rohana Majid
In this paper, Al2TiO5 ceramic material has been synthesised and used as filler in polymer electrolyte system to enhance the conductivity. The precursor sintered at 1,050 A degrees C and contained 0.08 mole of aluminium nitrate gives the best and complete formation of Al2TiO5. Composite polymer electrolytes of chitosan-NH4SCN containing different amount of home-made Al2TiO5 were prepared by solution casting. The addition of filler has enhanced the conductivity of polymer electrolyte. The sample 57 wt% chitosan-38 wt% NH4SCN-5 wt% Al2TiO5 exhibited the highest electrical conductivity of 2.10 x 10(-4) S cm(-1) at room temperature. The presence of the Al2TiO5 creates …
A Comparison Of Periodic Autoregressive And Dynamic Factor Models In Intraday Energy Demand Forecasting, Thomas Mestekemper, Goeran Kauermann, Michael Smith
A Comparison Of Periodic Autoregressive And Dynamic Factor Models In Intraday Energy Demand Forecasting, Thomas Mestekemper, Goeran Kauermann, Michael Smith
Michael Stanley Smith
We suggest a new approach for forecasting energy demand at an intraday resolution. Demand in each intraday period is modeled using semiparametric regression smoothing to account for calendar and weather components. Residual serial dependence is captured by one of two multivariate stationary time series models, with dimension equal to the number of intraday periods. These are a periodic autoregression and a dynamic factor model. We show the benefits of our approach in the forecasting of district heating demand in a steam network in Germany and aggregate electricity demand in the state of Victoria, Australia. In both studies, accounting for weather …
Applications Of Bis(Trimethylsilyl)Acetylene In 1,2,3-Triazole Synthesis, Ronald Brisbois, J. Cutter, F. Gwandu, A. Johnson
Applications Of Bis(Trimethylsilyl)Acetylene In 1,2,3-Triazole Synthesis, Ronald Brisbois, J. Cutter, F. Gwandu, A. Johnson
Ronald Brisbois
No abstract provided.
The Effect Of Antimony Trioxide On Poly (Vinyl Alcohol)-Lithium Perchlorate Based Polymer Electrolytes, Siti Rohana Majid, Lim C. S., Ramesh S.
The Effect Of Antimony Trioxide On Poly (Vinyl Alcohol)-Lithium Perchlorate Based Polymer Electrolytes, Siti Rohana Majid, Lim C. S., Ramesh S.
Siti Rohana Majid
A new type of inorganic filler antimony trioxide (Sb2O3) is used to prepare composite polymer electrolytes based on poly (vinyl alcohol) (PVA) and lithium perchlorate (LiClO4) by solution casting technique. The incorporation of Sb2O3 enhances the ionic conductivity at ambient temperature and exhibits the highest ionic conductivity value of 9.51 x 10(-5) S cm(-1) upon the addition of 6 wt% Sb2O3. Thermogravimetric analyses (TGA) reveal that the second weight loss is reduced. This shows the improvement in thermal stability of electrolyte film upon addition of Sb2O3. Differential scanning calorimetry (DSC) analyses show that the glass transition temperature (T-g) value decreases …
Wave Transmission And Water Setup Behind An Emergent Rubble-Mound Breakwater, Lorenzo Cappietti, Douglas Sherman, Jean Ellis
Wave Transmission And Water Setup Behind An Emergent Rubble-Mound Breakwater, Lorenzo Cappietti, Douglas Sherman, Jean Ellis
Jean Taylor Ellis
No abstract provided.
Adding Gas Chromatography-Mass Spectrometry Data To A Melting Point And Thin-Layer Chromatography Laboratory, Adam Azman, Julie Barrett, Megan Darragh, John Esteb, Luanne Mcnulty, Paul Morgan, Stacy O'Reilly, Anne Wilson
Adding Gas Chromatography-Mass Spectrometry Data To A Melting Point And Thin-Layer Chromatography Laboratory, Adam Azman, Julie Barrett, Megan Darragh, John Esteb, Luanne Mcnulty, Paul Morgan, Stacy O'Reilly, Anne Wilson
John Esteb
The addition of gas chromatography–mass spectrometry (GC–MS) data interpretation to a thin-layer chromatography (TLC) and melting point (mp) laboratory for an introductory organic course is described.
Note: Link is to the article in a subscription database available to users affiliated with Butler University. Appropriate login information will be required for access. Users not affiliated with Butler University should contact their local librarian for assistance in locating a copy of this article.
The Calculus Student: Insights From The Mathematical Association Of America National Study, David Bressoud, Marilyn Carlson, Vilma Mesa, Chris Rassmusen
The Calculus Student: Insights From The Mathematical Association Of America National Study, David Bressoud, Marilyn Carlson, Vilma Mesa, Chris Rassmusen
David Bressoud
No abstract provided.
Storm-Driven Hydrodynamic And Sedimentological Impacts To An Engineered Coast, Jean Ellis, Lorenzo Cappietti
Storm-Driven Hydrodynamic And Sedimentological Impacts To An Engineered Coast, Jean Ellis, Lorenzo Cappietti
Jean Taylor Ellis
No abstract provided.
Uniform Gaussian Bounds For Subelliptic Heat Kernels And An Application To The Total Variation Flow Of Graphs Over Carnot Groups, Luca Capogna, Giovanna Citti, Maria Manfredini
Uniform Gaussian Bounds For Subelliptic Heat Kernels And An Application To The Total Variation Flow Of Graphs Over Carnot Groups, Luca Capogna, Giovanna Citti, Maria Manfredini
Luca Capogna
In this paper we study heat kernels associated with a Carnot group G, endowed with a family of collapsing left-invariant Riemannian metrics σε which converge in the Gromov- Hausdorff sense to a sub-Riemannian structure on G as ε→ 0. The main new contribution are Gaussian-type bounds on the heat kernel for the σε metrics which are stable as ε→0 and extend the previous time-independent estimates in [16]. As an application we study well posedness of the total variation flow of graph surfaces over a bounded domain in a step two Carnot group (G; σε ). We establish interior and boundary …
Teaching Undergraduates Using Local Virtual Clusters, R. Brown, Elizabeth Shoop
Teaching Undergraduates Using Local Virtual Clusters, R. Brown, Elizabeth Shoop
Elizabeth Shoop
No abstract provided.
Representations Of The Rook-Brauer Algebra, Thomas Halverson, Elise Delmas
Representations Of The Rook-Brauer Algebra, Thomas Halverson, Elise Delmas
Thomas M. Halverson
No abstract provided.
Mixed Integer Programming Vs Logic-Based Benders Decomposition For Planning And Scheduling, John Hooker, Andre Cire
Mixed Integer Programming Vs Logic-Based Benders Decomposition For Planning And Scheduling, John Hooker, Andre Cire
John Hooker
No abstract provided.
Constraints On The Geodynamical Evolution Of Crete: Insights From Illite Crystallinity, Raman Spectroscopy And Calcite Twinning Above And Below The 'Cretan Detachment', T. Klein, John Craddock, G. Zulauf
Constraints On The Geodynamical Evolution Of Crete: Insights From Illite Crystallinity, Raman Spectroscopy And Calcite Twinning Above And Below The 'Cretan Detachment', T. Klein, John Craddock, G. Zulauf
John Craddock
No abstract provided.
Vortex-Glass Phase Transition And Enhanced Flux Pinning In C 4+-Irradiated Bafe1.9ni0.1as2 Superconducting Single Crystals, M Shahbazi, X Wang, S Ghorbani, M Ionescu, Olga Shcherbakova, Frederick Wells, Alexey Pan, S Dou, K Choi
Vortex-Glass Phase Transition And Enhanced Flux Pinning In C 4+-Irradiated Bafe1.9ni0.1as2 Superconducting Single Crystals, M Shahbazi, X Wang, S Ghorbani, M Ionescu, Olga Shcherbakova, Frederick Wells, Alexey Pan, S Dou, K Choi
Frederick S Wells
We report the effects of C4+-irradiation on the superconducting properties of BaFe1.9Ni0.1As2 single crystal. The BaFe1.9Ni0.1As2 single crystal before and after C4+-irradiation was characterized by magnetic, magneto-transport and magneto-optical techniques over a wide range of magnetic fields (0-13 T) and temperatures (2-200 K). We demonstrate that the C 4+-irradiation significantly enhances the in-field critical current density (by a factor of up to 1.5 at 5 K) and induces enhanced flux jumping at 2 K, with only a small degradation (by 0.5 K) of the critical temperature, T c. The vortex phase diagram describing the evolution of the vortex-glass transition temperature …
Characterization Of Aeolian Streamers Using Time-Average Videography, Douglas Sherman, Houser Chris, Jean Ellis, Eugene Farrell, Bailiang Li, Robin Davidson-Arnott, Andrea Baas, Luis Maia
Characterization Of Aeolian Streamers Using Time-Average Videography, Douglas Sherman, Houser Chris, Jean Ellis, Eugene Farrell, Bailiang Li, Robin Davidson-Arnott, Andrea Baas, Luis Maia
Jean Taylor Ellis
No abstract provided.
Constructing And Evaluating An Autoregressive House Price Index, Chaitra Nagaraja, Lawrence Brown
Constructing And Evaluating An Autoregressive House Price Index, Chaitra Nagaraja, Lawrence Brown
Chaitra H Nagaraja
No abstract provided.
Molecular-Beam Optical Stark And Zeeman Study Of The [17.8]0+-X1s+ Band System Of Auf, Timothy Steimle, Ruohan Zhang, Chengbing Qin
Molecular-Beam Optical Stark And Zeeman Study Of The [17.8]0+-X1s+ Band System Of Auf, Timothy Steimle, Ruohan Zhang, Chengbing Qin
Thomas D. Varberg
No abstract provided.
The First Year Of Calculus And Statistics At Macalester College, Karen Saxe, Dan Flath, Tom Halverson, Daniel Kaplan
The First Year Of Calculus And Statistics At Macalester College, Karen Saxe, Dan Flath, Tom Halverson, Daniel Kaplan
Karen Saxe
No abstract provided.
Accompanying Figures For "Rotation Periods Of Small Trojan Asteroids", Linda French
Accompanying Figures For "Rotation Periods Of Small Trojan Asteroids", Linda French
Linda French
No abstract provided.
Efficient Oxidation Of Arylmethylene Compounds Using Nano-Mno2, Baskar Nammalwar, Chelsea Fortenberry, Richard Bunce, Sathish Lageshetty, Kevin Ausman
Efficient Oxidation Of Arylmethylene Compounds Using Nano-Mno2, Baskar Nammalwar, Chelsea Fortenberry, Richard Bunce, Sathish Lageshetty, Kevin Ausman
Kevin D. Ausman
Nano-MnO2 has been developed as an efficient and mild reagent for the high-yield oxidation of arylmethylene compounds to the corresponding aldehydes and ketones as well as benzylic ethers to esters. The reagent is conveniently prepared and shows reactivity superior to synthetic (Attenburrow) MnO2 and commercial MnO2 under both microwave and conventional conditions. Typical reactions are performed using 25 wt % of nano-MnO2 relative to the substrate, and the reagent can be recycled up to six times without significant loss of activity. The observed conversions correlate well with surface-water content in the different MnO2 samples, as determined by thermogravimetric analysis.
Detrital Zircon Provenance Of The Mesoproterozoic Midcontinent Rift, Lake Superior Region, Usa: Journal Of Geology, V. 121, P. 57-73., John Craddock, Alex Konstantinou, Jeffrey Vervoort, Karl Wirth, Cam Davidson, Lee Finley-Blasi, Natalie Juda, Erin Walker
Detrital Zircon Provenance Of The Mesoproterozoic Midcontinent Rift, Lake Superior Region, Usa: Journal Of Geology, V. 121, P. 57-73., John Craddock, Alex Konstantinou, Jeffrey Vervoort, Karl Wirth, Cam Davidson, Lee Finley-Blasi, Natalie Juda, Erin Walker
Karl Wirth
No abstract provided.
Evolutionary Adaptation Of Marine Zooplankton To Global Change, Hans Dam
Evolutionary Adaptation Of Marine Zooplankton To Global Change, Hans Dam
Hans G. Dam
Predicting the response of the biota to global change remains a formidable endeavor. Zooplankton face challenges related to global warming, ocean acidification, the proliferation of toxic algal blooms, and increasing pollution, eutrophication, and hypoxia. They can respond to these changes by phenotypic plasticity or genetic adaptation. Using the concept of the evolution of reaction norms, I address how adaptive responses can be unequivocally discerned from phenotypic plasticity. To date, relatively few zooplankton studies have been designed for such a purpose. As case studies, I review the evidence for zooplankton adaptation to toxic algal blooms, hypoxia, and climate change. Predicting the …
Selective Nitration Of Chlorobenzene By No2 In The Alkali Zeolite Nazsm-5, Scott J. Kirkby
Selective Nitration Of Chlorobenzene By No2 In The Alkali Zeolite Nazsm-5, Scott J. Kirkby
Scott J. Kirkby
Variation Of Hyporheic Temperature Profiles In A Low Gradient Third-Order Agricultural Stream – A Statistical Approach, Vanessa Beach, Eric Wade Peterson
Variation Of Hyporheic Temperature Profiles In A Low Gradient Third-Order Agricultural Stream – A Statistical Approach, Vanessa Beach, Eric Wade Peterson
Eric Wade Peterson
Sediment size governs advection, controlling the hydraulic conductivity of the stratum, and conduction, influencing the amount of surface area in contact between the sediment particles. To understand the role of sediment particle size on thermal profiles within the hyporheic zone, a statistical approach, involving general summary statistics and time series cross-correlation, was employed. Data were collected along two riffles: Site 1: gravel (d50 = 3.9 mm) and Site 2: sand (d50 = 0.94 mm).Temperature probe grids collected 15-minute temperature data at 30, 60, 90, and 140 cm below the streambed surface over a 6-month period. Surface water and air temperature …
Connecting Big Data With Big Decisions: Ideas For Synthesizing Analytics And Decision Analysis, Jeffrey Keisler
Connecting Big Data With Big Decisions: Ideas For Synthesizing Analytics And Decision Analysis, Jeffrey Keisler
Jeffrey Keisler
This paper describes an approach to connect decision analysis models with outputs of analytic methods applied to various types of big data. Decision analysis models focus on issues of concern to a decision maker and incorporate use of a range of methods and axioms to develop insights about what the decision maker should do. In particular, decision analysis models typically use subjective judgments from the decision maker to describe beliefs about the likelihood of events and the desirability of outcomes. In order for human judgments to be improved by the availability of large amounts of data and processing power, it …
Expression And Computation Of Generalized Stirling Numbers, Tian-Xiao He
Expression And Computation Of Generalized Stirling Numbers, Tian-Xiao He
Tian-Xiao He
Fixed Bandwidth Theory For Tail Index Estimation, Tucker Mcelroy, Chaitra H. Nagaraja
Fixed Bandwidth Theory For Tail Index Estimation, Tucker Mcelroy, Chaitra H. Nagaraja
Chaitra H Nagaraja
No abstract provided.
Location And Tracking Of Mobile Devices: Überveillance Stalks The Streets, Katina Michael, Roger Clarke
Location And Tracking Of Mobile Devices: Überveillance Stalks The Streets, Katina Michael, Roger Clarke
Professor Katina Michael
During the last decade, location-tracking and monitoring applications have proliferated, in mobile cellular and wireless data networks, and through self-reporting by applications running in smartphones that are equipped with onboard global positioning system (GPS) chipsets. It is now possible to locate a smartphone-user's location not merely to a cell, but to a small area within it. Innovators have been quick to capitalise on these location-based technologies for commercial purposes, and have gained access to a great deal of sensitive personal data in the process. In addition, law enforcement utilise these technologies, can do so inexpensively and hence can track many …
Creating An Improved Version Using Noisy Ocr From Multiple Editions, David Wemhoener, Ismet Zeki, R. Manmatha
Creating An Improved Version Using Noisy Ocr From Multiple Editions, David Wemhoener, Ismet Zeki, R. Manmatha
R. Manmatha
This paper evaluates an automated scheme for aligning and combining optical character recognition (OCR) output from three scans of a book to generate a composite version with fewer OCR errors. While there has been some previous work on aligning multiple OCR versions of the same scan, the scheme introduced in this paper does not require that scans be from the same copy of the book, or even the same edition. The three OCR outputs are combined using an algorithm which builds upon an technique which aligns two sequences at a time. In the algorithm a multiple sequence alignment of the …
Appendix A: Borehole Data (Thesis Appendix, 2013), David J. Richey
Appendix A: Borehole Data (Thesis Appendix, 2013), David J. Richey
David J Richey
Select borehole data compiled and organized from Utah Division Oil, Gas and Mining (www.oilgas.ogm.utah.gov). The data found here include API well numbers, names of all wells used, well datum as defined by the elevation above sea level measured at the Kelly Bushing on the drilling floor, and the depth to various formation tops encountered during drilling measured in drilling depth.