Faculty Proceedings April 3-4, 2018

Constantin Apostoaia

Named Collaborators:

College(s) Represented: CES

Title: Inductive Power Charging for Electric Vehicles in Misalignment Conditions

Abstract: This research work deals with the challenges and issues facing the misalignment contact-less inductive power charging of electric vehicles (EVs). The focus is on analysis and design of the inductive power transfer (IPT) for dynamic (in-motion) charging systems. The computational electromagnetics approach is used here, and a graphical and programming platform is developed capable to link and co-simulate the models of the coupled coils with the models of the external circuitry of the overall IPT system consisting of: high frequency power inverter on the primary coil side, resonant tuning capacitors, diode bridge rectifier on the secondary coil side, DC filtering capacitor and the vehicle battery load.

Gokarna Aryal

Named Collaborators:

College(s) Represented: CES

Title: Reliability models using the composite generalizers of Weibull distribution

Abstract: In reliability analysis, choice of the probability distribution which should be adopted has an undeniable impact on the quality of the results. Therefore, there has been a growing interest in the construction of parametric classes of generalized probability distributions to model reliability data. Generalization of a probability distribution is generally furnished by inducting one (or more) additional parameter(s) to the standardclassical distribution to make the generalized distribution more flexible, especially for studying tail behavior. Commonly used generalizers include the exponentiated, Kumaraswamy, beta and the transmutation map. In this study we develop a wider class of generalized Weibull distribution by proposing the composite-generalizers. A composite-generalizer is obtained by the composition of two different generalizers. We formulate and assess the effectiveness of the composite generalizers to the 2-parameter Weibull distribution by analyzing real data sets.

Heather Augustyn

Named Collaborators:

College(s) Represented: CHESS

Title: Alpha Boys' School: Cradle of Jamaican Music

Abstract: Alpha Boys School was founded in 1880 in Kingston, Jamaica and was a boarding school run by Roman Catholic nuns. Under a strict disciplinarian regime, “wayward boys,” many orphaned or from deeply troubled backgrounds and hailing from some of the toughest streets in the world, went on to become the backbone of Jamaican jazz, ska, rocksteady, reggae, dancehall, and dub. Author Heather Augustyn, along with her co-author Adam Reeves, spent three years interviewing and researching over 40 of this musicians and in November, 2017 their book has finally been published. It has been receiving worldwide acclaim and excellent reviews. Augustyn will present exclusive photos and discuss the vital role the band program at this school has played in the development of Jamaican music and music all over the world.

Casimir Barczyk

Named Collaborators: Yehuda Peled, Western Galilee College (yehudap@wgalil.ac.il) Jenna E. Zubik, Student - Purdue University Northwest (jezubik@pnw.edu)

College(s) Represented: CHESS COB

Title: Cyberbullying: Effects on Students in the U.S. and Israel

Abstract: Abstract Cyberbullying is defined as an intentional act with the purpose of harming someone by using Internet or cell phone technology. This study addressed two research questions: (1) does cyberbullying affect college students’ emotional state, as measured by the nine factors of the College Adjustment Scales? and (2) do students victimized by cyberbullies in Israel experience the same psychological distress as students in the U.S.? A related question is which mode of cyberbullying most affects students’ emotional state. Seven hundred forty students from institutions of higher education in the U.S. and Israel were surveyed over the course of one academic year. The students completed a four-part paper-and-pencil questionnaire after providing informed consent to participate in the study. The data revealed that the highest incidence of cyberbullying occurred by means of social networking, followed by instant messaging and SMS. Respondents were electronically bullied an average of one to two times. Students in Israel generally experienced a higher amount of psychological distress compared to American students as a result of being cyberbullied. In rank order, Israeli students had more significant career problems, depression, interpersonal problems, suicidal ideation, anxiety, self-esteem, and academic problems than U.S. students. Interestingly, Israeli students experienced a lesser amount of family and regular college problems when cyberbullied compared to their American counterparts. Policy implications for colleges and universities are discussed.

Heather Bowers

Named Collaborators: Denise Comet Dillard, DILLARD Consulting, LLC & The Methodist Hospitals

College(s) Represented: CON

Title: Influencing a Diverse Nursing Workforce to Reduce Health Disparities: Developing Academic and Community Partnerships Phase I

Abstract: According to the Centers for Disease Control and Prevention, racial minorities in the United States continue to experience a disproportionate burden of health conditions. The Institute of Medicine recommends increasing the racial diversity of the healthcare workforce as an important approach for improving the nation’s health and reducing health disparities. In Northwest Indiana the nursing workforce lacks the diversity of its population and Lake County ranks near the bottom of health outcomes. If the nursing workforce is to be adequately diversified, there is a critical need for key stakeholders to develop strategies to recruit and retain underrepresented minority groups into the nursing field. Some healthcare institutions have implemented interventions and support for the newly graduated nurse. However, it is unknown what if any strategies are focused on the recruitment and retention of the minority nurse. If implemented, the impact of these strategies is also unknown. The first phase of this research project is to systematically review the evidence on RN workforce diversity to determine the best available evidence related to institutional structures and processes for influencing where a diverse nursing workforce distributes itself. The review will consider studies that include the following outcomes: • Primary - recruitment typically measured by the number hired in a fiscal year and retention typically measured by the number who actively resigned divided by number on board in a fiscal year. • Secondary - minority nurses' job satisfaction and turnover intention measured by objective quantitative instruments. Whereas, this systematic review will focus on interventions specific for recruiting and retaining the minority nurse, conducting a systematic review to identify institutional practices that positively correlate with influencing a diverse workforce can lead to the development of best available guidelines and practices for healthcare institutions to adopt in attracting and retaining racial and ethnic minority nurses.

Tantatape Brahmasrene

Named Collaborators: Jung Wan Lee Boston University

College(s) Represented: COB

Title: The Impact of Exchange Rate Uncertainty on the Level of Foreign Direct Investment Flows in China

Abstract: The aim of the study is to explore the short-run and long-run dynamic relationships between exchange rate fluctuations and foreign direct investment (FDI) inflows in China. The justification is that the undertaken topic is preeminent for devising strategies to promote economic development, thus, a course that carries much at stake not only for China but also for other developing countries. Methodology used in the study consists of co-integration tests, vector error correction models, Wald tests and impulse responses. Monthly time series data from the National Bureau of Statistics of the People’s Republic of China are analyzed. The main empirical results indicate that a change in exchange rates negatively affects FDI inflows in the long run while there exists no evidence of short-run dynamics and reciprocal feedback between exchange rate fluctuations and FDI inflows. Furthermore, a structural break occurs during the 2007-2009 Asian financial crisis shock to FDI inflows in China. In conclusions, this research expand knowledge of factors that affect FDI inflows. To generalize the results obtained from this study, recommendations for future research include studies encompassing different economies where data are available. Such research will contribute towards improving our understanding of exchange rate systems and responses in each market. Keywords: exchange rates; foreign direct investment; cointegration; vector error correction; impulse responses; China

Lizbeth Bryant

Named Collaborators:

College(s) Represented: CHESS

Title: DERL: A Reader's Best Friend

Abstract: DERL, A Reader’s Best Friend The Double Entry Research Log (DERL) is a writing activity that operates as a metacognitive learning strategy to improve students’ reading abilities. In our poster session, we will share how the DERL works and why teachers should use DERLs to support their students’ reading and learning. We argue that the DERL is an excellent metacognitive reading strategy that is easy to manage in the classroom. Our research with first-year writers and international students at PNW shows how the DERL helps with comprehension, analysis, and synthesis of reading materials. Students must bring to language their ideas about the text they are reading, putting others’ ideas in their own words. The DERL especially prepares international students who worry about speaking in class discussion. By completing the DERL, international students prepare a script from which they may read or refer to during class, making speaking and sharing less stressful. In addition, the DERL guides international students to read closely, encouraging them to digest the reading in "chunks" to ensure understanding before moving on to the next section. With repeated use of the DERLs, students not only become conscious of the way they think but also internalize and synthesize the subject matter of a course. Synthesis of multiple reading materials becomes manageable for students because the significant points are highlighted in the DERLs. This synthesis leads students to new ideas and creative ways of seeing what they are studying. Our poster will address 1) the pedagogical rational for using DERLs, 2) methods for employing DERLs, 3) benefits for students, and 4) benefits for the instructor who can easily track students’ progress by identifying their strengths and challenges. We hope to convince PNW teachers to continue the use of DERLs in their upper-division classes.

Gisele Casanova

Named Collaborators: Yehuda Peled, Western Galilee College (yehudap@wgalil.ac.il) Jenna E. Zubik, Student - Purdue University Northwest (jezubik@pnw.edu)

College(s) Represented: CHESS COB

Title: Cyberbullying: Effects on Students in the U.S. and Israel

Abstract: Abstract Cyberbullying is defined as an intentional act with the purpose of harming someone by using Internet or cell phone technology. This study addressed two research questions: (1) does cyberbullying affect college students’ emotional state, as measured by the nine factors of the College Adjustment Scales? and (2) do students victimized by cyberbullies in Israel experience the same psychological distress as students in the U.S.? A related question is which mode of cyberbullying most affects students’ emotional state. Seven hundred forty students from institutions of higher education in the U.S. and Israel were surveyed over the course of one academic year. The students completed a four-part paper-and-pencil questionnaire after providing informed consent to participate in the study. The data revealed that the highest incidence of cyberbullying occurred by means of social networking, followed by instant messaging and SMS. Respondents were electronically bullied an average of one to two times. Students in Israel generally experienced a higher amount of psychological distress compared to American students as a result of being cyberbullied. In rank order, Israeli students had more significant career problems, depression, interpersonal problems, suicidal ideation, anxiety, self-esteem, and academic problems than U.S. students. Interestingly, Israeli students experienced a lesser amount of family and regular college problems when cyberbullied compared to their American counterparts. Policy implications for colleges and universities are discussed.

Magesh Chandramouli

Named Collaborators:

College(s) Represented: CES

Title: Optimizing Highway Lighting

Abstract: Over the past few years light emitting diode technology has evolved to a degree that it is now applicable for high lumen highway lighting. Highway lighting is challenging due to the high light levels that are employed and associated increases in power and heat removal requirements. The Energy Efficiency and Reliability Center is currently providing laboratory and field testing services for the Indiana Department of Transportation as part of a program to change current highway lighting in Indiana to LED technology. As part of this effort various designs and options are considered both theoretically and experimentally to optimize this applications. Various aspects of the developmental process and its results will be considered.

Chandramouli V Chandramouli

Named Collaborators: Yuqian Jia, Graduate Student, MCE Department

College(s) Represented: CES

Title: Drought Analysis using Self Organizing Maps

Abstract: Self Organizing Maps (SOM) were used successfully in the past to identify outliers in hydrologic data analysis. Unlike popular artificial neural network training schemes like back propagation which is supervised learning algorithm, SOM is an unsupervised artificial intelligence technique in which the datasets given for training were clustered to different neurons using Euclidian distances. This method is very rapid and can be applied in large datasets (Kalteh et al 2008). Neurons in SOM can be arranged in different topologies. Data assigned to different neurons are clusters with similar characteristics. In this study, SOM was attempted for drought analysis to examine the advantages.

Debahuti Chatterjee

Named Collaborators:

College(s) Represented: CHESS

Title: DERL: A Reader's Best Friend

Abstract: DERL, A Reader’s Best Friend The Double Entry Research Log (DERL) is a writing activity that operates as a metacognitive learning strategy to improve students’ reading abilities. In our poster session, we will share how the DERL works and why teachers should use DERLs to support their students’ reading and learning. We argue that the DERL is an excellent metacognitive reading strategy that is easy to manage in the classroom. Our research with first-year writers and international students at PNW shows how the DERL helps with comprehension, analysis, and synthesis of reading materials. Students must bring to language their ideas about the text they are reading, putting others’ ideas in their own words. The DERL especially prepares international students who worry about speaking in class discussion. By completing the DERL, international students prepare a script from which they may read or refer to during class, making speaking and sharing less stressful. In addition, the DERL guides international students to read closely, encouraging them to digest the reading in "chunks" to ensure understanding before moving on to the next section. With repeated use of the DERLs, students not only become conscious of the way they think but also internalize and synthesize the subject matter of a course. Synthesis of multiple reading materials becomes manageable for students because the significant points are highlighted in the DERLs. This synthesis leads students to new ideas and creative ways of seeing what they are studying. Our poster will address 1) the pedagogical rational for using DERLs, 2) methods for employing DERLs, 3) benefits for students, and 4) benefits for the instructor who can easily track students’ progress by identifying their strengths and challenges. We hope to convince PNW teachers to continue the use of DERLs in their upper-division classes.

Chien-Chung Chen

Named Collaborators: Evert Ting, Purdue University Northwest

College(s) Represented: CES

Title: EVALUATIONS OF EFFECTS OF SELF HEALING AGENT ON MECHANICAL PROPERTIES OF CONCRETE

Abstract: Bacteria-based self-healing concrete incorporates bacterial spores, nutrients, and calcium sources, into the concrete mixture to provide self-healing capability. Various bacteria-based healing agents, comprising different types of bacteria, nutrients, and calcium sources, have been utilized in the past for the development of self-healing concrete. As nutrients and calcium sources are needed for bacterial growth and calcium carbonate precipitation, types and dosages of nutrients and calcium sources to be incorporated in the self-healing agent may influence effectiveness of concrete self-healing. Additionally, self-healing concrete must possess satisfactory mechanical properties. While bacteria spores, nutrients, and calcium sources provide self-healing properties to concrete, they may influence concrete strength and workability. Therefore, it is essential to identify effects of different nutrients and calcium sources on concrete properties. This paper experimentally studied the effects of bacterial spores, various nutrients, and calcium sources on compressive strength of mortar samples. Nutrients and calcium sources selected in the experimental study included urea, yeast extract, tryptic soy broth, calcium lactate, calcium nitrate, and calcium chloride. Compressive strengths of mortar cubes with three different dosages of each selected material were obtained and compared with those of control samples. While bacterial spores exhibited no significant impacts on the compressive strength of mortar specimens, results from this study showed that compressive strengths of mortar cubes were affected by the types and dosages of nutrients and calcium sources.

Chien-Chung Chen

Named Collaborators: Chen-Hsuan Chiu and Yen-Hao Chiao Department of Biological Sciences, Purdue University Northwest, Hammond, IN, USA (Both are biology graduate students)

College(s) Represented: CES

Title: SCREEING ALKALINE RESISNAT SPOREFORMING BACTERIA AS CONCRETE HEALIGN BACTERIA

Abstract: Concrete, one of the most common construction materials in the world, may cracks during and after concrete setting. Once cracks form, water and other harmful agents penetrate into the structure and cause degradation. The costs of repairing and replacing deteriorated concrete infrastructures such as bridges and dams can be very expensive. Hence, it is critical to repair concrete cracks as soon as they occur to ensure structural integrity. Using a microbial induced calcium carbonate (CaCO3) precipitation mechanism to repair small cracks in concrete has been investigated during the past decade. This method incorporates crack healing bacteria, bacterial growth substrates, and a calcium source into concrete mix. When concrete cracks, water enters the concrete structure and allows the bacterial spores to germinate and grow. The bacteria near the cracks metabolize the nutrients provided to produce CO2 or CO3- which interacts with the calcium source to produce CaCO3 precipitate to seal the cracks. This repairing process occurs automatically when cracks form; therefore it is referred as “self-healing.” An ideal bacterial healing agent not only precipitates CaCO3 effectively, it must also survive and grow in the harsh alkaline environment (pH 10~13) in concrete. Spores of alkaline resistant bacteria are preferred choices for making self-healing concrete because spores are very resistant to environmental stresses and remain viable for years. Spores can germinate and grow into vegetative cells when water and nutrients are available. Our present study is focusing on isolating and screening alkaline resistant spore-forming bacteria that can produce spores rapidly in lab, survive in concrete environment long term, and precipitate CaCO3 effectively in concrete environment.

Kuan-Chou Chen

Named Collaborators:

College(s) Represented: COB

Title: Integrating Flipped Classroom

Abstract: This presentation will explore a study which integrated the effectiveness of a flipped classroom (i.e., students are instructed outside of the classroom and complete enrichment activities inside the classroom) in an e-Learning enrolment (i.e., the instructional use of electronic devices with Internet in which students work to maximize their own learning). Specifically, this study will demonstrate the implementation of flipped classroom approach in business management course and utilized e-Learning activities to enrich the material that students had previously learned independently. Based on the end of course written evaluations, students found the combination pedagogy to be the most valuable learning experience of the course. In addition to students learning the technical skills necessary to enhance their management background, they also learned the vital role that active learning by working cooperatively with each other throughout the flipped environment. The result demonstrates that the classroom flip, if properly implemented with e-Learning, can lead to increased student learning.