Digital Commons Network^™

A Case Of One Professor's Teaching And Use Of Nature Of Science In An Introductory Chemistry Course, Mehmet Karakas

The Qualitative Report

In this article I provide a qualitative analysis of one faculty's teaching and answer the following research question: How does one chemistry professor who teaches introductory science incorporate aspects of the nature of science (NOS) into his course? This study concentrates on a single case in one private higher institution in the Northeastern United States. The participant's teaching style is presented through a combined presentation of interviews, classroom observations, and classroom activities. Six main themes emerged from the field notes in the areas of teacher actions, student teacher interactions, start of the lecture, incorporating NOS language in instruction, class size, …

Design Of An Integrated Starter-Alternator For A Series Hybrid Electric Vehicle: A Case Study In Axial Flux Permanent Magnet Machine Design, Jessica L. Colton

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

This thesis details the design of an electric machine to perform as both a starter and alternator in a series hybrid electric vehicle. The focus of the work is on practical design aspects specific to single-sided axial flux permanent magnet machines with non-overlapped windings. First, a characterization of the rotor losses in these machine types is presented through experimental validation of finite element analysis estimates. The approaches taken to model the axial flux geometry, especially in two-dimensions, are detailed, and the difficult issue of validating the finite element analysis estimates with experimental data is addressed with a prototype 24-slot, 20-pole …

Modeling Biological Structures Via Abstract Grammars To Solve Common Problems In Computational Biology, David J. Russell

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

Grammars are generally understood to be the set of rules that define the relationships between elements of a language. However, grammars can also be used to elucidate structural relationships within sequences constructed from any finite alphabet. In this work abstract grammars are used to model the primary and secondary structures present in biological data. These grammar models are inferred and applied to efficiently solve various sequence analysis problems in computational biology, including multiple sequence alignment, fragment assembly, database redundancy removal, and structural prediction.

The primary structures, or sequential ordering of symbols, of biological data are first modeled with Lempel-Ziv (LZ) …

Growth And Characterization Of Silicon Carbide Thin Films Using A Nontraditional Hollow Cathode Sputtering Technique, James Huguenin-Love

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

Silicon carbide (SiC) is considered a suitable candidate for high-power, high-frequency devices due to its wide bandgap, high breakdown field, and high electron mobility. It also has the unique ability to synthesize graphene on its surface by subliming Si during an annealing stage. The deposition of SiC is most often carried out using chemical vapor deposition (CVD) techniques, but little research has been explored with respect to the sputtering of SiC.

Investigations of the thin film depositions of SiC from pulse sputtering a hollow cathode SiC target are presented. Although there are many different polytypes of SiC, techniques are discussed …

Experimental Investigation Of Dielectric Barrier Impact On Breakdown Voltage Enhancement Of Copper Wire-Plane Electrode Systems, Elham Foruzan, M. Ziaee-Nezhad, A. A. Shayegani-Akmal, K. Niayesh

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

Non-pressurized air is extensively used as basic insulation media in medium / high voltage equipments. An inherent property of air-insulated designs is that the systems tend to become physically large. Application of Dielectric barrier can increase the breakdown voltage and therefore decrease the size of the equipments.

In this paper, the impact of dielectric barrier on breakdown voltage enhancement of a copper wire-plane system is investigated. For this purpose, the copper wire is covered with different dielectric materials. Depending on the air gap and dielectric strength of the barrier the breakdown can be initiated in the solid or gas dielectric. …

The Role Of Inspiration In The Helping Professions, Kari A. O'Grady, P. Scott Richards

Faculty Publications

This qualitative research study examined the ways that helping professionals experi- ence inspiration, as defined as divine guidance or influence, in their therapeutic work. It also explored their beliefs about how helping professionals can seek inspiration in their work. Open-ended survey questions from 333 respondents from a diverse range of religious and professional backgrounds were qualitatively analyzed. The themes ex- tracted give insight into the ways that these helping professionals have experienced inspiration in their work and about how helping professionals can facilitate a spiritual space in the therapeutic context.

Improved Method For The Determination Of Kinetic Parameters From Non-Isothermal Thermogravimetric Analysis (Tga) Data, Thomas H. Fletcher, James L. Hillier, Trent Bezzant

Faculty Publications

Thermogravimetric analysis (TGA) at a constant heating rate is a popular technique for characterizing reaction behavior. Determination of kinetic coefficients from suchTGAdata has given rise to a large range of reported activation energies for similar samples. In general, rate coefficients are determined using either a linearized integral method or a derivative method. A new method incorporating several well-known techniques is presented that avoids the problems with the linearized techniques as they are generally used. This paper compares results from the new method with results using either the integral or derivative method. Mathematically generated data were used with known kinetic parameters …

The Surface Characteristics And Reactivity Of Residual Carbon In Coal Gasification Slag, Xianglong Zhao, Cai Zeng, Yanyan Mao, Wenhua Li, Yun Peng, Tao Wang, Boris Eiteneer, Vladimir Zamansky, Thomas H. Fletcher

Faculty Publications

In a slagging entrained-flow coal gasifier, a large portion of the inorganic matter will form liquid slag that may have strong physical and chemical interactions with char. Understanding the char-slag interaction is important for improving the modeling and design of gasifiers. This paper reports the characteristics of residual carbon in both coarse and fine slag from a typical entrained-flow coal water slurry gasifier. The surface characteristics of slag and residual carbon in slag were evaluated by scanning electron microscopy and energy dispersive X-ray spectroscopy. The reactivity of the residual carbon in slag was compared through thermal gravimetric analysis. It was …

Investigation Of Nitrogen Release During Coal Pyrolysis In An Oxy-Fuel Combustion Process, John M. Sowa, Kolbein K. Kolste, Thomas H. Fletcher

Faculty Publications

Three coals were studied in a flat flame burner (FFB) to determine nitrogen release during pyrolysis as a function of the temperature from 1600 to 1900 K in an oxy-fuel environment. The oxy-fuel environment was created by replacing the background N2 with CO2 in the FFB experiments. Both types of experiments were conducted under fuel-rich conditions, with no O2 present in the postflame gases. The oxy-fuel results were compared to previous results from FFB experiments in a N2 atmosphere. A bituminous coal showed no difference in mass and nitrogen release between the two environments. The sub-bituminous coal exhibited higher mass …

Experimental Measurements During Combustion Of Moist Individual Foliage Samples, Brent M. Pickett, Carl Isackson, Rebecca Wunder, Thomas H. Fletcher, Bret Buitler, David R. Weise

Faculty Publications

Individual samples of high moisture fuels from the western and southern United States and humidified aspen excelsior were burned over a flat-flame burner at 987◦ ±12 C and 10±0.5 mol% O2. Time-dependent mass and temperature profiles of these samples were obtained and analysed. It was observed that significant amounts of moisture remained in the individual samples after ignition occurred. Temperature histories showed a plateau at 200◦–300 C at the leaf perimeter rather than at 100 C, with a plateau of 140 C for the leaf interior. Implications are that classical combustion models should be altered to reflect the behaviour of …

A Sub-Grid, Mixture–Fraction-Based Thermodynamic Equilibrium Model For Gas Phase Combustion In Firetec: Development And Results, Michael M. Clark, Thomas H. Fletcher, Rodman R. Linn

Faculty Publications

The chemical processes of gas phase combustion in wildland fires are complex and occur at length-scales that are not resolved in computational fluid dynamics (CFD) models of landscape-scale wildland fire. A new approach for modelling fire chemistry in HIGRAD/FIRETEC (a landscape-scale CFD wildfire model) applies a mixture–fraction model relying on thermodynamic chemical equilibrium to predict combustion flame temperatures and product species compositions. The mixture–fraction approach is common in combustor modelling applications. However, since individual flame sheets are not resolved in HIGRAD/FIRETEC, application of the mixture–fraction approach requires the development of a sub-grid model, which is based on the two assumptions …

Design And Evaluation Of A Suspension Seat To Reduce Vibration Exposure Of Subway Operators: A Case Study, Pierre Marcotte, Sylvie Beaugrand, Jérôme Boutin, Christian Larue

Études primaires

Subway operators have complained about discomfort caused by whole-body vibration. To address this problem, a suspension seat with extensive ergonomic features has been adapted to the confined space of the subway operator cab. The suspension was modified from an existing suspension in order to reduce the dominant frequency of the subway vertical vibration (2.4 Hz). The suspension seat has been extensively tested on a vertical hydraulic shaker. These tests have shown that the SEAT value was lower for a higher vibration level, for higher subject weight, and for the suspension adjusted at median height. The seat also produces a lower …

Development Of A Hand-Arm Mechanical Analogue For Evaluating Chipping Hammer Vibration Emission Values, Pierre Marcotte, Jérôme Boutin, Juliana Jasinski

Études primaires

No abstract provided.

A Comparative Study Of Two Trunk Biomechanical Models Under Symmetric And Asymmetric Loadings, N. Arjmand, D. Gagnon, A. Plamondon, A. Shirazi-Adl, C. Larivière

Études primaires

No abstract provided.

Reconciling Fair Use And Trademark Use, Margreth Barrett

Faculty Scholarship

No abstract provided.

Fending For Themselves: Why Securities Regulations Should Encourage Angel Groups, Abraham J. B. Cable

Faculty Scholarship

No abstract provided.

Biomedical Informatics Seminar Series (Biomiss) 2010 - 2011, Philip Kroth

Biomedical Informatics Seminar Series (BioMISS)

No abstract provided.

Faculty Governance, Volume 1, Issue 4, Unm Faculty Senate

Faculty Senate Documents

No abstract provided.

Fabrication And Characterizations Of Ysz Electrolyte Films For Sofc, M-F Han, Z Yang, Z Liu, H-R Le

School of Biological and Marine Sciences

Yttria stabilized zirconia (YSZ) has been widely used as electrolyte in solid oxide fuel cell (SOFC). The effect of fabrication process on the properties of YSZ electrolyte thick film is discussed in the paper. With YSZ nano-powders of about 20-60nm as raw material, YSZ green adobe was fabricated by tape calendering process. Three-step sintering process was performed firstly holding at 1000 degrees C for 2h, then raising to 1300 similar to 1400 degrees C, then decreasing to 1200 similar to 1300 degrees C within 30 minutes, and finally calcining at 1200 similar to 1300 degrees C for 5 similar to …

Multimodal Structure Of Baroclinic Tides In The South China Sea, V. Vlasenko, N. Stashchuk, C. Guo, X. Chen

School of Biological and Marine Sciences

The modelling of baroclinic tides generated in the northern South China Sea is studied using a fully-nonlinear non-hydrostatic numerical model. The focus of the modelling efforts was on the vertical structure of internal waves in the vicinity of the Luzon Strait. The barotropic tidal flow interacting with a two-ridge bottom topography in the area of the Luzon Strait produces a complex baroclinic tidal signal. A multimodal baroclinic bore with counter-phase displacement of isopycnals generated over the ridges and propagating westward disintegrates into a series of large-amplitude solitary internal waves. The leading first-mode solitary wave of depression is followed by a …

5th Annual Economic Outlook Conference_Jan 13, University Of New Mexico Bureau Of Business And Economic Research

BBER Publications

This report presents the University of New Mexico Bureau of Business and Economic Research's assessment of New Mexico's economy during the Great Recession, including forecasts for employment, income, and industry growth through 2014. It also provides extensive county-level demographic and economic statistics, maps, charts, and data source references for researchers and policymakers.

5th Annual Economic Outlook Conference_Jan 13 (2), University Of New Mexico Bureau Of Business And Economic Research

BBER Publications

This report presents the University of New Mexico Bureau of Business and Economic Research's assessment of New Mexico's economy during the Great Recession, including forecasts for employment, income, and industry growth through 2014. It also provides extensive county-level demographic and economic statistics, maps, charts, and data source references for researchers and policymakers.

Developing A Gui Beer Game For Learning And Teaching In Logistics And Supply Chain Management, Dong-Ping Song, Shunmugham Pandian, Rong Fu

Plymouth Business School

This project aims to develop an IT-based tool with graphic user interface (GUI) to be used in assisting the undergraduate/ postgraduate learning and teaching. The purpose is to facilitate ug/ pg students to better understand the key issues in supply chain (SC) systems, experience the management problems in supply chains, and improve their core skills of supply chain management (SCM).

A Review Of Graduate Schools In The Uk., Mp Fuller, P Denicolo, D Berry, C Raven

School of Biological and Marine Sciences

No abstract provided.

Correct Diagnosis; Wrong Cure: A Response To Professor Suk, Joan C. Williams

Faculty Scholarship

No abstract provided.

Fusion Of Imprecise Qualitative Information, Florentin Smarandache, Xinde Li, Xianzhong Dai, Jean Dezert

Branch Mathematics and Statistics Faculty and Staff Publications

In this paper, we present a new 2-tuple linguistic representation model, i.e. Distribution Function Model (DFM), for combining imprecise qualitative information using fusion rules drawn from Dezert-Smarandache Theory (DSmT) framework. Such new approach allows to preserve the precision and efficiency of the combination of linguistic information in the case of either equidistant or unbalanced label model. Some basic operators on imprecise 2-tuple labels are presented together with their extensions for imprecise 2-tuple labels. We also give simple examples to show how precise and imprecise qualitative information can be combined for reasoning under uncertainty. It is concluded that DSmT can deal …

Fusion Of Sources Of Evidence With Different Importances And Reliabilities, Florentin Smarandache, Jean Dezert, J.M. Tacnet

Branch Mathematics and Statistics Faculty and Staff Publications

This paper presents a new approach for combining sources of evidences with different importances and reliabilities. Usually, the combination of sources of evidences with different reliabilities is done by the classical Shafer’s discounting approach. Therefore, to consider unequal importances of sources, if any, a similar reliability discounting process is generally used, making no difference between the notion of importance and reliability. In fact, in multicriteria decision context, these notions should be clearly distinguished. This paper shows how this can be done and we provide simple examples to show the differences between both solutions for managing importances and reliabilities of sources. …

Single Valued Neutrosophic Sets, Haibin Wang, Florentin Smarandache, Yanqing Zhang, Rajshekhar Sunderraman

Branch Mathematics and Statistics Faculty and Staff Publications

Neutrosophic set is a part of neutrosophy which studies the origin, nature, and scope of neutralities, as well as their interactions with different ideational spectra. Neutrosophic set is a powerful general formal framework that has been recently proposed. However, neutrosophic set needs to be specified from a technical point of view. To this effect, we define the settheoretic operators on an instance of neutrosophic set, we call it single valued neutrosophic set (SVNS). We provide various properties of SVNS, which are connected to the operations and relations over SVNS.

Behavioral Correlations Across Activity, Mating, Exploration, Aggression, And Antipredator Contexts In The European House Cricket, Acheta Domesticus, Alexander D.M. Wilson, Emily M. Whattam, Rachel Bennett, Laksanavadee Visanuvimol, Chris Lauzon, Susan M. Bertram

School of Biological and Marine Sciences

No abstract provided.

Health Care Reform Supplement To Health Law: Cases, Materials And Problems, Robert Schwartz, Barry R. Furrow, Thomas L. Greaney, Sandra H. Johnson, Timothy Stoltzfus Jost

Faculty Book Display Case

Copyright page and Table of Contents only.