Digital Commons Network^™

Efficientnet-Lite And Hybrid Cnn-Knn Implementation For Facial Expression Recognition On Raspberry Pi, Mohd Nadhir Ab Wahab, Anthony Tan Zhen Ren, Amril Nazir, Mohd Halim Mohd Noor, Muhammad Firdaus Akbar, Ahmad Sufril Azlan Mohamed

All Works

Facial expression recognition (FER) is the task of determining a person’s current emotion. It plays an important role in healthcare, marketing, and counselling. With the advancement in deep learning algorithms like Convolutional Neural Network (CNN), the system’s accuracy is improving. A hybrid CNN and k-Nearest Neighbour (KNN) model can improve FER’s accuracy. This paper presents a hybrid CNN-KNN model for FER on the Raspberry Pi 4, where we use CNN for feature extraction. Subsequently, the KNN performs expression recognition. We use the transfer learning technique to build our system with an EfficientNet-Lite model. The hybrid model we propose replaces the …

Tracking School-To-Work Transition Among The Youth In The Philippines, Futoshi Yamauchi, Marites Tiongco

DLSU Business & Economics Review

This paper examines wage variations and turnovers using a unique tracking survey data of Filipino youth who were initially sampled at Grade 6. The analysis also uses mathematics and English test scores at Grade 6 to proxy for cognitive abilities. The empirical results show that returns to education and ability increase with labor market experience and occupational upgrading. The study highlights the importance of academic achievements, measured by both years of schooling completed and academic test scores, in upgrading occupations of youth to realize higher returns in the labor market, even though many youths often start with irregular and undesirable …

A Mathematical Analysis Of The Wind Triangle Problem And An Inquiry Of True Airspeed Calculations In Supersonic Flight, Leonard T. Huang, Lisa I. Cummings

International Journal of Aviation, Aeronautics, and Aerospace

In the first half of this paper, we present a fresh perspective toward the Wind Triangle Problem in aerial navigation by deriving necessary and sufficient conditions, which we call "go/no-go conditions", for the existence/non-existence of a solution of the problem. Although our derivation is based on simple trigonometry and basic properties of quadratic functions, it is mathematically rigorous. We also offer examples to demonstrate how easy it is to check these conditions graphically. In the second half of this paper, we use function theory to re-examine another problem in aerial navigation, namely, that of computing true airspeed — even in …

Internet Of Things 36-Rotor Multicopter For Ionizing Radiation Surveying, Svetoslav Zabunov, Garo Mardirossian, Rositsa Miteva, Todor Kunchev

International Journal of Aviation, Aeronautics, and Aerospace

This paper presents an Internet of things 36-rotor unmanned aerial vehicle suitable for radiological surveying of buildings and facilities. The design of the 36-rotor multicopter platform is disclosed. The aircraft is used as a testbed for a lightweight gamma/beta/neutron ionizing radiation sensor closely coupled with the autopilot of the multirotor aircraft. A prototype of the drone and sensor was developed and initial tests were conducted. Test results are presented with data from measuring different radiation sources. The proposed novel design is compared to existing work and advantages to the latter were established.

The Framers, Faith, And Tyranny, Marci A. Hamilton

Roger Williams University Law Review

No abstract provided.

Law Library Blog (January 2021): Legal Beagle's Blog Archive, Roger Williams University School Of Law

Law Library Newsletters/Blog

No abstract provided.

Cylindrical Magnetron Development For Nb₃Sn Deposition Via Magnetron Sputtering, Md. Nizam Sayeed, Hani Elsayed-Ali, C. Côté, M. A. Farzad, A. Sarkissian, G. V. Eremeev, A-M. Valente-Feliciano

Electrical & Computer Engineering Faculty Publications

Due to its better superconducting properties (critical temperature Tc~ 18.3 K, superheating field H_sh~ 400 mT), Nb₃Sn is considered as a potential alternative to niobium (Tc~ 9.25 K, H_sh~ 200 mT) for superconducting radiofrequency (SRF) cavities for particle acceleration. Magnetron sputtering is an effective method to produce superconducting Nb₃Sn films. We deposited superconducting Nb₃Sn films on samples with magnetron sputtering using co-sputtering, sequential sputtering, and sputtering from a stoichiometric target. Nb₃Sn films produced by magnetron sputtering in our previous experiments have achieved DC superconducting critical temperature up to …

Bertillonage In An Age Of Surveillance: Fourth Amendment Regulation Of Facial Recognition Technologies, David C. Gray

SMU Science and Technology Law Review

The Fourth Amendment is a closed hydraulic system. As a general rule, if government conduct is deemed a “search” under the Fourth Amendment, then agents must secure a warrant from a detached and neutral magistrate before engaging in that conduct. There are exceptions, of course, but they just shift the pressure into another valve. Officers who conduct searches based on their own initiative must show not only probable cause, but also good reasons why, in their circumstances, they were not required to get a warrant.

One consequence of these Fourth Amendment hydraulics is a reluctance on the part of the …

The Communitarian Deficit In The Usa: Three Telling Cases, Amitai Etzioni

SMU Science and Technology Law Review

Liberal communitarianism suggests that the balance between individual rights and the common good must be adjusted as historical conditions change. Much attention has been paid to violations of rights, e.g., by the police, for good reasons. This Article examines three new technologies that undermine public safety, a key common good, and asks whether they should be banned. The 2020 pandemic revealed that scores of millions of Americans objected, not merely to government mandates to take measures that are likely to spare fellow Americans a severe disease or death, but even to respond to moral calls, especially wearing a mask. This …

Acknowledging And Affirming University Students’ Linguistic And Cultural Capital In An Education Course, J. Joy Esquierdo

Bilingual and Literacy Studies Faculty Publications

In order to effectively prepare K-12 teachers to serve linguistically and culturally diverse students, it is vital to provide opportunities for them to develop their intra- and intercultural understandings. This paper describes how a faculty member designed and delivered a teacher preparation class centered on culturally relevant approaches. Students enrolled in this course completed assignments that were designed to guide them through an intracultural reflection to then expand their understandings to an intercultural context. Considering the students’ diverse linguistic and cultural experiences, assignments and projects provided opportunities for them to recognize their linguistic and cultural wealth in order to build …

A New Mmc Topology Which Decreases The Sub Module Voltage Fluctuations At Lower Switching Frequencies And Improves Converter Efficiency, Shahab Sajedi

Doctoral

Modular Multi-level inverters (MMCs) are becoming more common because of their suitability for applications in smart grids and multi-terminal HVDC transmission networks. The comparative study between the two classic topologies of MMC (AC side cascaded and DC side cascaded topologies) indicates some disadvantages which can affect their performance. The sub module voltage ripple and switching losses are one of the main issues and the reason for the appearance of the circulating current is sub module capacitor voltage ripple. Hence, the sub module capacitor needs to be large enough to constrain the voltage ripple when operating at lower switching frequencies. However, …

Detection Of 2,4,6-Trinitrotoluene Using A Colorimetric Gold Nanoparticle Air Cassette Filter, Andrea I. Ferrer Vega

Master of Science in Forensic Science Directed Research Projects

Trinitrotoluene (TNT) is an explosive commonly used during military and terrorist activities. Current methods to identify this compound require sampling, transport and analysis at a forensic lab using analytical instrumentation. However, on-site detection is needed to assist efforts to prevent detonation. Gold nanoparticles have been used as sensors throughout the years due to their versatility and surface enhanced Raman scattering properties in the presence of an analyte and low limits of detection. By taking advantage of the Meisenheimer complex that TNT forms in the presence of amines, it is possible to determine its presence at picogram levels. Subsequently, adhering amine …

Evaluation Of Five Methods To Develop Latent Prints On Thermal Paper, Jenna Pregent

Master of Science in Forensic Science Directed Research Projects

Forensic latent fingerprint laboratories determine the proper techniques for fingerprint visualization based on the substrates upon which they are deposited. Typical forensic analysis of thermal paper evidence involves the application of ninhydrin and/or 1,2-indanedione dissolved in a polar solvent. However, polar solvents create an undesirable reaction with the thermal paper’s internal properties and often lead to discoloration of the evidence. When this occurs, not only are the fingerprints less likely to be visible due to the loss of contrast, but the evidentiary print on the receipt may be lost entirely. This research sought to compare five development methods to determine …

A New Analysis Method For Evaluating Bacterial Growth With Microplate Readers, Venkata Rao Krishnamurthi, Isabelle I. Niyonshuti, Jingyi Chen, Yong Wang

Physics Faculty Publications and Presentations

Growth curve measurements are commonly used in microbiology, while the use of microplate readers for such measurements provides better temporal resolution and higher throughput. However, evaluating bacterial growth with microplate readers has been hurdled by barriers such as multiple scattering. Here, we report our development of a method based on the time derivatives of the optical density (OD) and/or fluorescence (FL) of bacterial cultures to overcome these barriers. First, we illustrated our method using quantitative models and numerical simulations, which predicted the number of bacteria and the number of fluorescent proteins in time as well as their time derivatives. Then, …

Examining The Use Of Robots As Teacher Assistants In Uae Classrooms: Teacher And Student Perspectives, Mariam Alhashmi, Omar Mubin, Rama Baroud

All Works

Aim/Purpose This study sought to understand the views of both teachers and students on the usage of humanoid robots as teaching assistants in a specifically Arab context. Background Social robots have in recent times penetrated the educational space. Although prevalent in Asia and some Western regions, the uptake, perception and ac-ceptance of educational robots in the Arab or Emirati region is not known. Methodology A total of 20 children and 5 teachers were randomly selected to comprise the sample for this study, which was a qualitative exploration executed using fo-cus groups after an NAO robot (pronounced now) was deployed in …

Trondhjemite Leucosomes Generated By Partial Melting Of A Hornblende-Gabbro (Alvand Plutonic Complex, Hamedan, Nw Iran), Adel Saki, Federico Lucci, Mirmohammad Miri, John C. White

EKU Faculty and Staff Scholarship

This work describes the petrogenesis of in situ and in-source trondhjemite leucosomes generated by low-degree partial melting of the Jurassic Cheshmeh-Ghasaban hornblende-gabbros in the northern Alvand batholith (Hamedan, NW Iran). These leucosomes occur in a metatexite migmatite as patches, net-structures, veinlets, and dikes at scales ranging from a few millimetres to a few metres. They have high SiO2 (mean ≈ 78 wt%) and Na2O (4–5 wt%) with low Al2O3 (wt%), K2 O (

Genesis Of Trondhjemite By Low-Pressure Fraction Anatexis Of Hornblende-Gabbro At Alvand Plutonic Complex (Hamedan, Nw Iran): Insights From Geochemical Modelling., Federico Lucci, Adel Saki, Mirmohammad Miri, Ahmad Rabiee, John C. White

EKU Faculty and Staff Scholarship

Amphibole-dominated dehydration melting of gabbro is the primary process responsible for the genesis of adakites, low-K tonalites, modern trondhjemites, and plagiogranites aswell as Archean tonalite-trondhjemite-granodiorite suites that represent the earliest examples of continental crust. Previous literature has mostly focused on the role of Al-rich amphibole during anatexis of a mafic source and many of these studies have investigated this process through experimental melting runs. However, due to experimental boundary conditions, little is known about partial melting of amphibole-bearing mafic rock at temperatures < 800°C for upper crustal conditions (pressure < 500 MPa). Classic and forward thermobarometric modelling suggests that in situ trondhjemite leucosomes, hosted by Cheshmeh-Ghasaban mafic metatexites (Alvand Plutonic Complex, Hamedan, NW Iran), represent a rare natural case study of a low-temperature incipient amphibole-dominated anatectic event of a mafic source with a primary assemblage (Pl+Hbl+Cpx+Bt+Opx) typical of a hornblende-bearing gabbroic rock.

Peralkaline Silicic Extrusive Rocks: Magma Genesis, Evolution, Plumbing Systems, And Eruption., Ray Macdonald, John C. White, Harvey E. Belkin

EKU Faculty and Staff Scholarship

Peralkaline silicic extrusive rocks are an important component of the volcanological record. Here we review several aspects of their formation and evolution, including the tectonic settings in which they occur, their main petrological and geochemical features, the magmatic lineages along which they evolve, and the parameters (T, P, fO₂, melt water contents) that control the lineages. Particular attention is paid to the composition of the extraordinary melts formed at the lowest temperatures. Various lines of evidence are presented to explain the silica-gaps in some lineages. The partial melting of continental crust and the role of crustal contamination …

Towards A Holistic Efficient Stacking Ensemble Intrusion Detection System Using Newly Generated Heterogeneous Datasets, Ahmed Mosbah Elsaeed Mahfouz

Electronic Theses and Dissertations Archive

With the exponential growth of network-based applications globally, there has been a transformation in organizations' business models. Furthermore, cost reduction of both computational devices and the internet have led people to become more technology dependent. Consequently, due to inordinate use of computer networks, new risks have emerged. Therefore, the process of improving the speed and accuracy of security mechanisms has become crucial.Although abundant new security tools have been developed, the rapid-growth of malicious activities continues to be a pressing issue, as their ever-evolving attacks continue to create severe threats to network security. Classical security techniquesfor instance, firewallsare used as a …

Evaluating The Treatment Utility Of The Cognitive Assessment System: A Meta-Analysis Of Reading And Mathematics Outcomes, Richard J. Mcnulty

Electronic Theses and Dissertations Archive

Among contemporary cognitive assessments, the Cognitive Assessment System (Naglieri & Das, 1997) offers a measurement battery that is uniquely grounded in neuropsychological theory and aligned with cognitive and academic interventions. As such, it is asserted to provide data that can be used to optimize instructional intervention. This study sought to examine and assess the literature pertinent to the treatment utility of the Cognitive Assessment System. The first aim of this study was to coordinate and review the current literature according to treatment utility design models. A total of 252 articles were found from an electronic search and eligibility screening yielded …

Learning Motion Estimation, Ali Salehi

Electronic Theses and Dissertations Archive

Transformation of any generic scene including structural deformation and fluid flow can be estimated non-invasively from an image sequence using optical flow estimation techniques. Dense optical flow estimation is more challenging when there are large displacements in a scene with heterogeneous motion dynamics, occlusion, and scene homogeneity. Recently developed deep learning methods show significant promise in estimating optical flow with high accuracy. Majority of these methods, however, have been more commonly derived from architectures of related computer vision tasks such as semantic segmentation and require a large number of training parameters. Accuracy of these methods is also affected by the …

Design A System Of Secure Random Number Generators By Random Coupling With The Future, Farnaz Solatikia

Electronic Theses and Dissertations Archive

Pseudo-random number generators (PRNGs) play an important role in both areas of computersimulation and computer security. For PRNGs in computer security applications, the securityconcern is extremely important. In recent years, there have been many PRNGs proposed in the areaof computer simulation satisfying the nice properties. However, most of them are linear generators,thus sharing the same weakness in predictability. The major aim of this study is to propose threegeneral class of secure generators, called RCF(Random Coupling with Future), Dual RCF, RCFShufflinggenerators, to obtain a secure generator that would inherit the nice properties.Proposed generators are suitable for both simulation and security applications. …

Comparing Passenger Satisfaction, Employees’ Perspective And Performance On Quality And Safety Indicators: A Field Study, Luca D’Alonzo, Maria Chiara Leva, Edgardo Bucciarelli

Articles

This paper aims to analyze the impact that different attributes related to a Regional Airport service and the socio-economic factors of the passengers have on the passenger’s overall satisfaction. The study also compared passenger and employee satisfaction in relation to the service offered by the airport, to identify possible critical areas of improvement. An Ordinal Logistic Regression (OLR) approach was used to model how the attributes considered for qualifying airport services and the socio-economic variables impact the predicted variable (i.e., passenger satisfaction). Furthermore, the results were triangulated to include quality and safety performance indicators as an objective anchor point for …

Food Contact Surfaces: Challenges, Legislation And Solutions, Shubham Sharma, Amit Jaiswal, Brendan Duffy, Swarna Jaiswal

Articles

Food contact surfaces (FCSs) include all surfaces that may come in contact with the food during production, processing, and packaging. Food processing industries encounter several challenges due to its microbial interaction with the FCSs, such as cross-contamination of pathogenic microorganisms or allergens in food, formation of biofilm, biodeterioration of food contact surface leads to food with reduced shelf-life and quality. A legal EU framework provides the fundamental postulates for the safety and inertness of all Food Contact Materials (FCMs). Legislations have an important role in providing regulatory guidance on the quality assurance systems and verifying their implementation as a means …

Near-Field Propagation Analysis For Vivaldi Antenna Design: Insight Into The Propagation Process For Optimizing The Directivity, Integrity Of Signal Transmission, And Efficiency, Ha Hoang, Matthias John, Patrick Mcevoy, Max Ammann

Articles

Refined optimization of complex curve–linear-shaped radiators, such as traveling-wave Vivaldi antennas, can be achieved by considering simulated near fields to interpret in detail the structural influences of a design. The relationships between the space and time distributions of electromagnetic (EM) energy clusters and the geometric features are revealed with appropriate use of impulse response analysis combined with the multiple signal classification (MUSIC) algorithm. This article reports a deeper approach when applied to the adjustment of the geometric features of a traveling-wave antenna based on an analysis of near-field propagation features.

Implementing A Transitional Care Protocol To Reduce Psychiatric Rehospitalizations, Charles Wangui

DNP Scholarly Projects

Readmission rates in hospitals across the country are at an all-time high. Patients being
discharged from the hospital may feel fearful, especially if they are experiencing a new onset of
illness. Many patients wonder how they will deal with or manage their illness once they return
home. The goal for hospitals should be to reduce readmissions by addressing the factors that
impact readmission. Improved care coordination is one of the goals of transitional care. Patients'
functioning and quality of life increase when hospital readmissions are reduced. Readmissions
can be reduced by addressing care management before and after discharge in all …

Three Essays In Applied Microeconomics: Spillover Effects Of Anti Discrimination And Anti Violence Policies, Gokhan Kumpas

Doctoral Dissertations

In this research, I examine the intended and unintended consequences of three highly debated policies at the state and federal level: enactment of Title IX, state anti-bullying laws, and warrantless arrest laws aimed at curbing domestic violence. My first essay examines the causal relationship between athletic participation and means-tested program participation. I use the variation in the implementation of Title IX and find that a 30 percentage-point increase in female athletic participation induced by Title IX increased program participation among 25 to 40-year-old females by 2.8 percentage-points. This effect persists across SNAP, TANF, and Medicaid recipiency. Event study analysis and …

The Effect Of Deep-Water Multibeam Mapping Activity On The Foraging Behavior Of Cuvier’S Beaked Whales And The Marine Acoustic Environment, Hilary Suzanne Curran Kates Varghese

Doctoral Dissertations

Sound can propagate great distances underwater and is an important mode for marine life to obtain information. Human activities in the ocean such as global shipping, coastal construction, gas and oil exploration, and mapping navigation routes intentionally and unintentionally emit sound into the ocean, potentially interacting with marine life. Therefore, it is essential that the effects of anthropogenic noise on marine life and the ambient marine acoustic environment be understood. Most of the work, to date, has focused on the impact of low-frequency (<1 kHz) sources such as shipping noise, which is ubiquitous in the ocean, and mid-frequency (1-10 kHz) sources such as naval sonar, to which many marine mammals have shown to be sensitive. The effect of these sources can be as salient as a mass stranding event or as benign as an animal swimming away from a source of noise with no other effect. Less work has focused on higher frequency sources (>10 kHz), including ocean-mapping sonar systems. However, most marine mammals, namely toothed whales (odontocetes), are capable …

Methodology For The Deployment Of Small Payloads From A Host Underwater Vehicle, Brian Ross, Michael Feehan, Connor Goldstein, Ian Fitzgerald

Mechanical Engineering Capstone Design Projects

Team 16 has sought the task of assisting the Naval Undersea Warfare Center (NUWC) in devising a novel solution regarding the methodology for the deployment of small payloads from a host unmanned underwater vehicle. This task is to be achieved without compromising the host's reliability and functionality with its deployment method approach. Unmanned underwater exploration capabilities introduce new avenues of understanding for the world below the surface. An au- tonomous unmanned underwater vehicle (UUV) can house scientific instruments, other vessels, and various payloads allowing access to remote or otherwise di cult to access locations. Team 16 has developed a novel …

Social Justice And Evolutionary Biology: A Natural Fit, David I. Upegui

Open Access Dissertations

This dissertation is an extended prescription for the inclusion of social justice in high school biology (HSB) curricula. Chapter 1 is context: a review of social injustice (mainly racism) in the US, and the specious scientific justifications for it. Chapter 2 explores how three veteran teachers introduce social justice in HSB classes. A case-study, semi-constructed interview-based approach is used. Chapter 3, the culmination of these ideas, adduces a practical curriculum module that provides the theory, lessons and activities for HSB student exploration the inferior science used to sustain racial inequities. The dissertation thus reviews the moral imperatives for introducing social …