Physical Sciences and Mathematics Commons^™

Identity‐Based Schemes For A Secured Big Data And Cloud Ict Framework In Smart Grid System, Feng Ye, Yi Qian, Rose Qingyang Hu

Electrical and Computer Engineering Faculty Publications

Smart grid is an intelligent cyber physical system (CPS). The CPS generates a massive amount of data for efficient grid operation. In this paper, a big data‐driven, cloud‐based information and communication technology (ICT) framework for smart grid CPS is proposed. The proposed ICT framework deploys hybrid cloud servers to enhance scalability and reliability of smart grid communication infrastructure. Because the data in the ICT framework contains much privacy of customers and important data for automated controlling, the security of data transmission must be ensured. In order to secure the communications over the Internet in the system, identity‐based schemes are proposed …

Anisoplanatic Electromagnetic Image Propagation Through Narrow Or Extended Phase Turbulence Using Altitude-Dependent Structure Parameter, Monish Ranjan Chatterjee, Ali Mohamed

Electrical and Computer Engineering Faculty Publications

The effects of turbulence on anisoplanatic imaging are often modeled through the use of a sequence of phase screens distributed along the optical path. We implement the split-step wave algorithm to examine turbulence-corrupted images.

Examination Of The Nonlinear Dynamics And Possible Chaos Encryption In A Zeroth-Order Acousto-Optic Bragg Modulator With Feedback, Fares S. Almehmadi, Monish Ranjan Chatterjee

Electrical and Computer Engineering Faculty Publications

Zeroth-order chaos modulation in a Bragg cell is examined such that tracking problems due to spatial deflections of the first-order AO beam at the receiver may be avoided by switching to the undeviated zeroth-order beam.

Negative Index In Chiral Metamaterials Under Conductive Loss And First-Order Material Dispersion Using Lorentzian, Condon And Drude Models, Monish Ranjan Chatterjee, Tarig A. Algadey

Electrical and Computer Engineering Faculty Publications

Emergence of negative index (NIM) in chiral materials with conductive loss using standard dispersive models is reported. Positive and negative phase and group indices are realized as expected for NIM behavior for sidebands with opposite polarities.

Nonlinear Dynamics, Bifurcation Maps, Signal Encryption And Decryption Using Acousto-Optic Chaos Under A Variable Aperture Illumination, Monish Ranjan Chatterjee, Suman Chaparala

Electrical and Computer Engineering Faculty Publications

Bragg cell nonlinear dynamics and bifurcation properties under first-order feedback with variable aperture are examined. Chaotic encryption and recovery of low-bandwidth signals, and optimal performance are evaluated for fixed and variable apertures.

Chiral Light Intrinsically Couples To Extrinsic/Pseudo-Chiral Metasurfaces Made Of Tilted Gold Nanowires, Alessandro Belardini, Marco Centini, Grigore Leahu, David C. Hooper, Roberto Li Voti, Eugenio Fazio, Joseph W. Haus, Andrew Sarangan, Ventsislav K. Valev, Concita Sibilia

Electro-Optics and Photonics Faculty Publications

Extrinsic or pseudo-chiral (meta)surfaces have an achiral structure, yet they can give rise to circular dichroism when the experiment itself becomes chiral. Although these surfaces are known to yield differences in reflected and transmitted circularly polarized light, the exact mechanism of the interaction has never been directly demonstrated. Here we present a comprehensive linear and nonlinear optical investigation of a metasurface composed of tilted gold nanowires. In the linear regime, we directly demonstrate the selective absorption of circularly polarised light depending on the orientation of the metasurface. In the nonlinear regime, we demonstrate for the first time how second harmonic …

Analysis Of Various Classification Techniques For Computer Aided Detection System Of Pulmonary Nodules In Ct, Barath Narayanan Narayanan, Russell C. Hardie, Temesguen Messay

Electrical and Computer Engineering Faculty Publications

Lung cancer is the leading cause of cancer death in the United States. It usually exhibits its presence with the formation of pulmonary nodules. Nodules are round or oval-shaped growth present in the lung. Computed Tomography (CT) scans are used by radiologists to detect such nodules. Computer Aided Detection (CAD) of such nodules would aid in providing a second opinion to the radiologists and would be of valuable help in lung cancer screening. In this research, we study various feature selection methods for the CAD system framework proposed in FlyerScan. Algorithmic steps of FlyerScan include (i) local contrast enhancement (ii) …

Recursive Non-Local Means Filter For Video Denoising With Poisson-Gaussian Noise, Redha A. Almahdi, Russell C. Hardie

Electrical and Computer Engineering Faculty Publications

In this paper, we describe a new recursive Non-Local means (RNLM) algorithm for video denoising that has been developed by the current authors. Furthermore, we extend this work by incorporating a Poisson-Gaussian noise model. Our new RNLM method provides a computationally efficient means for video denoising, and yields improved performance compared with the single frame NLM and BM3D benchmarks methods. Non-Local means (NLM) based methods of denoising have been applied successfully in various image and video sequence denoising applications. However, direct extension of this method from 2D to 3D for video processing can be computationally demanding. The RNLM approach takes …

Simulation Model Of An Automatic Commercial Ice Machine, Haithem Murgham, David Myszka, Vijay Bahel, Rajan Rajendran, Kurt Knapke, Suresh Shivashankar, Kyaw Wynn

Mechanical and Aerospace Engineering Faculty Publications

Automatic commercial ice-making machines that produce a batch of cube ice at regular intervals are known as “cubers." Such machines are commonly used in food service, food preservation, hotel, and health service industries. The machines are typically rated for the weight of ice produced over a 24-hour period at ambient air temperatures of 90°F and water inlet temperature of 70°F.

These cubers typically utilize an air-cooled, vapor-compression cycle to freeze circulating water flowing over an evaporator grid. Once a sufficient amount ice is formed, a valve switches to enable a harvest mode, where the compressor’s discharge gas is routed into …

Phase Gradient Algorithm Method For 3-D Holographic Ladar Imaging, Jason W. Stafford, Bradley D. Duncan, David J. Rabb

Electro-Optics and Photonics Faculty Publications

3-D holographic ladar uses digital holography with frequency diversity to add the ability to resolve targets in range. A key challenge is that since individual frequency samples are not recorded simultaneously, differential phase aberrations may exist between them making it difficult to achieve range compression. We describe steps specific to this modality so that phase gradient algorithms (PGA) can be applied to 3-D holographic ladar data for phase corrections across multiple temporal frequency samples. Substantial improvement of range compression is demonstrated with a laboratory experiment where our modified PGA technique is applied. Additionally, the PGA estimator is demonstrated to be …

Histogram Of Oriented Phase (Hop): A New Descriptor Based On Phase Congruency, Hussin Ragb, Vijayan K. Asari

Electrical and Computer Engineering Faculty Publications

In this paper we present a low level image descriptor called Histogram of Oriented Phase based on phase congruency concept and the Principal Component Analysis (PCA). Since the phase of the signal conveys more information regarding signal structure than the magnitude, the proposed descriptor can precisely identify and localize image features over the gradient based techniques, especially in the regions affected by illumination changes. The proposed features can be formed by extracting the phase congruency information for each pixel in the image with respect to its neighborhood. Histograms of the phase congruency values of the local regions in the image …

Data Evaluation And Control Of Pollutants In The Air

Stander Symposium Projects

This project is about the data evaluation of the pollutants in the open atmosphere such as carbon monoxide, sulfur dioxide, nitrogen dioxide, particulate matter, etc. The main aim of this project is to evaluate the data for the pollutants mentioned above as well as to generate different curves with the help of data obtained for past couple of decades and to develop some curve-fit equations to predict the approximate emission values of the pollutants for upcoming future years. As environmental pollution is one of the biggest challenges we are facing now-a-days in the current technology-based world,this work also shows the …

Research Exercise: Tired Of Rubber Landfills: From Environmental Hazard To Sustainable Use Potential Of Discarded Tire Materials

Stander Symposium Projects

How do you dispose of your used car tires? Although answering this on an individual level doesn’t seem to be hard, the sheer amounts of old tires disposed of as a byproduct of a growing car market in the United States have grown to make a significant impact on the environment. Each year, over 350 million tires are consumed and only about 70% of the accruing waste is properly recycled at their end of life. The storage of tires in landfills, or improper methods of disposal, such as burning and waterbody displacement causes hazardous emissions and health problems. For instance, …

Fall Risk Assessment Of Older Adults With Dementia Attending Goodwill Easter Seals Adult Day Services Programs

Stander Symposium Projects

Older adults with dementia are at an increased risk for falls. However, little is known about what specific factors increase fall risk in this population. The purpose of this study was to assess performance based fall risk factors among older adults with dementia who attend day service programs in the Miami Valley so that more specific interventions can be designed to reduce future falls. To be included in this study, participants had to attend Goodwill Easter Seals Adult Day Service and have a diagnosis of dementia. There were 19 participants in this study (8 male) with an average age of …

Social Support Influences In Graduate International Student Engagement

Stander Symposium Projects

Changes that graduate international students face in acculturating to U.S. educational environments can often impact the ways they engage on campus, and their subsequent personal and career success. This poses the question of “What are the key themes that institutions can build upon to better support and encourage their growth?” In conducting a mixed-methods study on the lived experiences of graduate students from India, main findings suggested that mentoring relationships, social ties, and factors of perception were crucial to influencing students’ academic and social engagement.

Developing Trend Equations For Cpi:As Empirical Analysis 2001-2015

Stander Symposium Projects

Since the 2008 recession, overall inflation as measured by CPI has been perceived to be almost non existent. In recent months, however, inflation is picking up, which in a perverse sort of way is seen as good for the economy. The purpose of this study, therefore, is to more clearly understand CPI trend inflation. To that end, I looked at a long term trend, 2001-2014, two intermediate term trends, 2001-2007 and 2009-2014 and a short term trend, 2013-2014. Monthly and yearly linear trend equations were developed for the long and intermediate term time periods. For the shorter time period both …

Design And Fabrication Of Fourier Spectral Filter Array For Multispectral Imaging

Stander Symposium Projects

Multispectral imaging has the capability to identify the state of objects based on their spectral characteristics. These are features not available with conventional color imaging based on metameric RGB (red, green and blue) colors alone. Current multispectral imaging systems use narrowband filters to capture the spectral content of a scene, which necessitates different filters to be designed and applied for each application. We have demonstrated the concept of Fourier multispectral imaging which uses filters with sinusoidally varying transmittance by time multiplexed switchable filter array in our previous paper [1, 2]. In this paper, we designed and built a five channel, …

Renew Your Interest...So Your Best Potential Can Come To Light! Examining The Effectiveness Of Academic Renewal Course & Coaching (Arcc)

Stander Symposium Projects

This research explores how the seven week academic intervention course, Academic Renewal Course and Coaching (ARCC) at the University of Dayton, affects student learning development and the parallel to decreasing attrition. The objective of this research was to extract the academic intervention practices and strategies that work best to increase academic performance amongst students who are academically and motivationally challenged. It also explains how and why student learning is affected when the appropriate conditions and resources aren’t identified and/or utilized by students. Academic intervention program assessment of ARCC is the all-encompassing purpose of this research. Through qualitative and quantitative data …

Avoiding The Guillotine: The Need For Balance And Purpose In Determining Fundamental Rights Under The Fourteenth Amendment

Stander Symposium Projects

This paper argues the need for a balanced approach between traditionalism (including history) and rationalism to determine fundamental rights under the Fourteenth Amendment of the U.S. Constitution. The issue of how to determine fundamental rights has intrigued the Supreme Court of the United States since 1798. The Supreme Court has desired an “objective” approach to determine what rights are “fundamental.” However, the Supreme Court has had difficulty finding an objective approach. This is because, as E.O. Wilson and Joshua Greene observed, rights are naturally subjective creations of an individual’s values. Thus, any test to determine fundamental rights will be subjective …

Creating Value Through Sustainable Manufacturing

Stander Symposium Projects

To support movement toward a more sustainable worldview, increasing manufacturing efficiency or productivity to improve business profitability and return to shareholders alone is no longer sufficient. Today, leading manufacturers employ business practices that generate sustainable value—that is, creating economic, environmental, and societal value for all stakeholders. Progressive company culture, environmental and energy management systems, carbon neutrality, and becoming landfill free are all valuable outcomes of sustainable manufacturing. This poster outlines the the value of these outcomes as well as methods to achieve sustainable manufacturing.

Effect Of Combination Ice And Compression Socks On Resting Calf Blood Flow In Trained Male Athletes

Stander Symposium Projects

Compression socks are common tools that are utilized in the realm of athletics. The purpose of the compression is to increase blood flow to the lower extremities, thereby increasing oxygen and energy sources needed for increased skeletal muscle function and/or recovery. Recently, a product has been marketed that combines the compression element and cryotherapy, with the goal being increased blood flow to the lower extremities while reducing inflammation post-workout to quicken recovery. However, to our knowledge, direct measures of blood flow using this type of product have not been performed. Thus, this study looks at the effects of compression with …

Can The Color Red Improve Men’S Perceived Mate Value?: Examining The Interactive Effects Of Facial Masculinity And Color On Female Evaluation Of Potential Mates

Stander Symposium Projects

We manipulated facial masculinity (masculine-morph/feminine-morph) and color (red/white) through two independent studies—one in-lab at the University of Dayton and one online using Amazon’s MTurk—to examine its effect on social status and attractiveness for men when rated by women. We specifically aimed to see if the color red could serve a compensatory effect for feminine-faced men, who were least likely to be found attractive by women at peak fertility. When paired with red, women rated the masculine and feminine faces higher in social status. Through this increase in social status, the color red was also able to indirectly increase the physical …

Increasing Retention In Male Students Of Color Through Student Leadership Experiences

Stander Symposium Projects

This study explores the implications of leadership experiences on undergraduate male students of color and its impact on their sense of belonging at a private, religious, Predominantly White Institution. Enrollment statistics depict a low retention rate among minority students, especially male students of color identifying as Black, Latino, Asian American, and Pacific Islander. A sense of belonging is a vital component to the academic success of all students, and essential to the experience of multicultural students on Predominately White Institutions. According to researchers, a student’s sense of belonging comes as a result of many different factors. For many students, their …

Research Exercise: The Development Of A First Year Chemistry Laboratory

Stander Symposium Projects

The purpose for this project was to redesign a past General Chemistry Laboratory experiment with emphasis on student learning objectives in support of lecture material. The experiment was first introduced into the second semester CHM124L course in 1997 as “Preparation and Investigation of Salt Solutions”. For the Fall 2016 curriculum, the modified experiment will be conducted in the first semester General Chemistry course CHM123L as “Equilibrium of Salt Solutions”. This experiment was chosen for modification because the concept of equilibrium, especially when applied to pH of salt solutions, is one that many students find difficult to understand. Experiencing the concept …

A Portfolio Weighting Strategy For A Portfolio Of 9 Large Cap Healthcare Stocks: The Case For Capture Ratios, 2010 - 2015

Stander Symposium Projects

The Capital Asset Pricing Model (CAPM) indicates that individual stocks are systematically influenced by overall price movements in the market. One way of measuring these systematic movements is through capture ratios. In this study I utilize upside/downside capture ratios to develop portfolio weights for 9 large cap Health Care stocks which make up the largest overall weight in the Health Care Sector XLV. I test the following hypotheses: (1) The upside/downside capture ratio weighted portfolio outperforms the market (S&P 500), (2) the upside/downside capture ratio weighted portfolio outperforms XLV. (3) The performance of the upside/downside capture ratio weighted healthcare portfolio …

Bmi Associations Between Mother And Offspring From Birth To Age 18: The Fels Longitudinal Study

Stander Symposium Projects

Introduction: It is reported that two of three American adults are classified as overweight or obese; and one in three of their offspring will become overweight or obese (Sun et al., 2012). Because parental obesity is a risk factor for childhood obesity, children can also be pre-exposed to risk factors for chronic diseases such as diabetes, hypertension, coronary artery and cardiovascular diseases. It has been well established that body composition is affected by many variables such as age, sex, race, in addition to the familial environment affects such as diet and exercise habits (Baumgartner et al., 1994). Previous research has …

Re (Cell) Lcd: A Feasibility Study On Recycling Cell Phone Lcd

Stander Symposium Projects

Liquid Crystal Displays (LCD) are used in a magnitude of devices and have now become the norm in products that require a screen, such as, cell phones, computers, televisions, tablets, and more. However, many of these technologies are becoming outdated leading towards the issue of exponential growth of waste with a lack of technology set in place for proper recycling. Most of research literatures on LCD recycling are of electronic products and e-waste in general rather than cell phones in particular. Few studies on recycling of cell phone LCD have been accomplished. Since everyday around 300,000 mobile phones are sent …

Identification Of Potential Acrab-Tolc Efflux Pump Inhibitors In Escherichia Coli Using An Ethidium Bromide Method.

Stander Symposium Projects

Many bacteria are known to exhibit antibiotic resistance through overexpression of efflux pumps. In this experiment, inhibition of a bacterial efflux pump through the physical binding of small molecule inhibitor compounds was explored as a way to combat substrate expulsion. The TolC protomer of the AcrAB-TolC efflux pump in Escherichia coli was targeted in a virtual screen for novel small molecule inhibitor compounds. PyRx AutoDock Vina was used to virtually dock the various small molecules to the TolC protein and rank the compounds based on favorable binding energies. Five lead-compounds from the virtual screen were ultimately selected for in vivo …

Identification Of English Learners As Gifted Students

Stander Symposium Projects

The United States educational system has faced several challenges and reforms regarding assessment and identification in the past fifty years which continue to change as the nation develops new goals and needs (Giuliani & Pierangelo 2012). In recent years, schools have included a large population of immigrant students from families with native languages other than English (Carter 2005). The need for educating students in English as a second language has led to new policies and programs developed specifically for ELL or English Language Learners (Elizalde-Utnick 2008). Another current topic of educational policy concerns the emphasis on assessment and high-stakes testing. …

Internship Experience Through The Wild Encounters Program Of The Cincinnati Zoo

Stander Symposium Projects

In the summer of 2015, I participated in an internship in the Wild Encounters department at the Cincinnati Zoo & Botanical Gardens. The internship required an extensive amount of training in proper animal handling, husbandry, and interpretation. This training allowed me the opportunity to work with a wide diversity of wildlife including several endangered species. The internship gave me access to a wide range of biodiversity including invertebrates such as the Madagascar Hissing Cockroach, and smaller vertebrates, such as Sand Boas and Spiny Tailed Lizards. In addition, I spent time interacting and educating the public on larger species of wildlife, …