132 research outputs found

    The University as a Socio-Material Assemblage:Promotional Videos—Codes, Territories, and Globalization

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    The objective of this thesis is to explore and subsequently develop the concept of the university as a socio-material assemblage with regard to three key concepts of assemblage theory: codes, territories, and globalization (different from the traditional views of globalization). The thesis does this building on a multimodal analysis of data gathered from 26 promotional YouTube videos from UK and Canadian universities. It introduces a new middle-range (mesolevel) theoretical framework by combining concepts from assemblage theory (AT) (DeLanda, 2006; Deleuze & Guattari, 2013), and the inquiry graphics approach (IG) (Lacković, 2020). The methodology focuses on exploring the meanings of the universities’ spaces, physical objects, actors (human and non-human), and the relationships among actors through inquiry graphics analytical lenses. It then establishes codes and territories based on the analysis that territorialize the university as an assemblage, as well as the decodifying and deterritorializing processes within it. Finally, it analyses the observed codes and territories through the lenses of homogenization and hybridization globalization theories. The thesis concludes that the university can be conceptualized and interpreted as a socio-material assemblage whose components are interrelated and have both material and social expressive roles. Further, codes and territories are defined by the strength of the links between their iconic and symbolic expressions. Each university assemblage is connected to other assemblages through the various multi-layered networks that each component belongs to, yet the interaction among the components of an assemblage is interpreted within its specific territories, codes, and semiotic systems. These in turn, are defined by applying the semiotic principles of the IG approach. Finally, the thesis makes three major contributions: it conceptualizes the university as a socio-material assemblage, it develops a middle-range theoretical framework by combining concepts from assemblage theory and the inquiry graphics approach that can be applied to understand other sociomaterial assemblages, and it explains the relation between globalization, territorialization and codification of universities as socio-material assemblages

    Programs and Courses Catalog 2023-2024

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    Contents: --- Academic Calendar--- Guide to Course Number Prefixes--- Course Number Explanation--- Common Course Numbers--- List of Programs by Department--- General Information--- Academic Regulations--- Academic Structure--- Admission Requirements--- Enrollment and Registration Procedures--- Fees and Financial Aid--- Graduate Information, Admission, Academic Regulations, and Degree Requirements--- Student Life--- The Fine and Performing Arts at UNI--- The University and Its Programs--- Undergraduate Information and Degree Requirements--- University Facilities and Educational Services--- Learning Outcomes--- Plan of Study (4-year plans)--- All Majors--- Business--- Education--- Humanities, Arts and Sciences--- Social and Behavioral Sciences--- Interdisciplinary--- College of Business--- Department of Accounting--- Department of Economics--- Department of Finance--- Department of Management--- Department of Marketing and Entrepreneurship--- College of Education--- Department of Curriculum and Instruction--- Department of Educational Psychology, Foundations, and Leadership Studies--- Department of Health, Recreation and Community Services--- Department of Kinesiology--- Special Education--- Teaching--- College of Humanities, Arts and Sciences--- Department of Applied Engineering & Technical Management--- Department of Art--- Department of Biology--- Department of Chemistry and Biochemistry--- Department of Communication and Media--- Department of Communication Sciences and Disorders--- Department of Computer Science--- Department of Earth and Environmental Sciences--- Iowa Lakeside Laboratory--- Department of Languages and Literatures--- Department of Mathematics--- School of Music--- Department of Philosophy and World Religions--- Department of Physics--- Science Education--- Department of Theatre--- College of Social and Behavioral Sciences--- School of Applied Human Sciences--- Department of Geography--- Department of History--- Department of Military Science--- Department of Political Science--- Department of Psychology--- Department of Social Work--- Department of Sociology, Anthropology, and Criminology--- Social Science--- Interdisciplinary Majors, Minors and Program Certificates--- Bachelor of Applied Science Degree Programs--- Bachelor of Arts Degree and Minor Programs--- Master of Arts Degree Programs--- Program Certificates--- Undergraduate Studies--- Regents Alternative Pathway to Iowa Licensure (RAPIL)https://scholarworks.uni.edu/uni_catalogs/1122/thumbnail.jp

    Roadmap on spatiotemporal light fields

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    Spatiotemporal sculpturing of light pulse with ultimately sophisticated structures represents the holy grail of the human everlasting pursue of ultrafast information transmission and processing as well as ultra-intense energy concentration and extraction. It also holds the key to unlock new extraordinary fundamental physical effects. Traditionally, spatiotemporal light pulses are always treated as spatiotemporally separable wave packet as solution of the Maxwell's equations. In the past decade, however, more generalized forms of spatiotemporally nonseparable solution started to emerge with growing importance for their striking physical effects. This roadmap intends to highlight the recent advances in the creation and control of increasingly complex spatiotemporally sculptured pulses, from spatiotemporally separable to complex nonseparable states, with diverse geometric and topological structures, presenting a bird's eye viewpoint on the zoology of spatiotemporal light fields and the outlook of future trends and open challenges.Comment: This is the version of the article before peer review or editing, as submitted by an author to Journal of Optics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from i

    Programs and Courses Catalog 2022-2023

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    Table of Contents Academic Calendar ... 5General Information ... 7The University and Its Programs ... 7Academic Structure ... 9Admission Requirements ... 16Enrollment and Registration Procedures ... 21Fees and Financial Aid ... 22Student Life ... 28University Facilities and Educational Services ... 33The Fine and Performing Arts at UNI ... 39Academic Regulations ... 44Undergraduate Information and Degree Requirements ... 62Graduate Information, Admission, Academic Regulations, and DegreeRequirements ... 88List of Programs by Department ... 119Department of Accounting ... 125Department of Applied Engineering & Technical Management ... 128School of Applied Human Sciences ... 138Department of Art ... 143Department of Biology ... 149Department of Chemistry and Biochemistry ... 161Department of Communication and Media ... 165Department of Communication Sciences and Disorders ... 179Department of Computer Science ... 182Department of Curriculum and Instruction ... 186Department of Earth and Environmental Sciences ... 199Department of Economics ... 208Department of Educational Psychology, Foundations, andLeadership Studies ... 212Department of Finance ... 219Department of Geography ... 223Department of Health, Recreation and Community Services ... 230Department of History ... 250Interdisciplinary Majors, Minors and Program Certificates ... 256Bachelor of Applied Science Degree Programs ... 257Bachelor of Arts Degree and Minor Programs ... 260Master of Arts Degree Programs ... 268Program Certificates ... 270College of Business ... 275College of Education ... 282College of Social and Behavioral Sciences ... 289Undergraduate Studies ... 292Iowa Lakeside Laboratory ... 293Department of Kinesiology ... 293Department of Languages and Literatures ... 297Department of Management ... 318Department of Marketing and Entrepreneurship ... 322Department of Mathematics ... 329Department of Military Science ... 336School of Music ... 337Department of Philosophy and World Religions ... 352Department of Physics ... 356Department of Political Science ... 361Department of Psychology ... 367Regents Alternative Pathway to Iowa Licensure (RAPIL) -Answering the Call to Teach ... 371Science Education ... 371Social Science ... 376Department of Social Work ... 383Department of Sociology, Anthropology, and Criminology ... 388Special Education ... 397Teaching ... 400Department of Theatre ... 400Course Number Explanation ... 404Common Course Numbers ... 405Guide to Course Number Prefixes ... 407Course Descriptions ... 410Accounting Courses (ACCT) ... 411Actuarial Science Courses (ACT SCI) ... 412American Sign Language Courses (ASL) ... 413Anthropology Courses (ANTH) ... 413Art Education Courses (ARTED) ... 415Art History Courses (ARTHIST) ... 416Art Studio Courses (ART) ... 417Athletic Training Courses (AT) ... 419https://scholarworks.uni.edu/uni_catalogs/1065/thumbnail.jp

    Alternative Sources of Energy Modeling, Automation, Optimal Planning and Operation

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    An economic development model analyzes the adoption of alternative strategy capable of leveraging the economy, based essentially on RES. The combination of wind turbine, PV installation with new technology battery energy storage, DSM network and RES forecasting algorithms maximizes RES integration in isolated islands. An innovative model of power system (PS) imbalances is presented, which aims to capture various features of the stochastic behavior of imbalances and to reduce in average reserve requirements and PS risk. Deep learning techniques for medium-term wind speed and solar irradiance forecasting are presented, using for first time a specific cloud index. Scalability-replicability of the FLEXITRANSTORE technology innovations integrates hardware-software solutions in all areas of the transmission system and the wholesale markets, promoting increased RES. A deep learning and GIS approach are combined for the optimal positioning of wave energy converters. An innovative methodology to hybridize battery-based energy storage using supercapacitors for smoother power profile, a new control scheme and battery degradation mechanism and their economic viability are presented. An innovative module-level photovoltaic (PV) architecture in parallel configuration is introduced maximizing power extraction under partial shading. A new method for detecting demagnetization faults in axial flux permanent magnet synchronous wind generators is presented. The stochastic operating temperature (OT) optimization integrated with Markov Chain simulation ascertains a more accurate OT for guiding the coal gasification practice

    Fractional Calculus and the Future of Science

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    Newton foresaw the limitations of geometry’s description of planetary behavior and developed fluxions (differentials) as the new language for celestial mechanics and as the way to implement his laws of mechanics. Two hundred years later Mandelbrot introduced the notion of fractals into the scientific lexicon of geometry, dynamics, and statistics and in so doing suggested ways to see beyond the limitations of Newton’s laws. Mandelbrot’s mathematical essays suggest how fractals may lead to the understanding of turbulence, viscoelasticity, and ultimately to end of dominance of the Newton’s macroscopic world view.Fractional Calculus and the Future of Science examines the nexus of these two game-changing contributions to our scientific understanding of the world. It addresses how non-integer differential equations replace Newton’s laws to describe the many guises of complexity, most of which lay beyond Newton’s experience, and many had even eluded Mandelbrot’s powerful intuition. The book’s authors look behind the mathematics and examine what must be true about a phenomenon’s behavior to justify the replacement of an integer-order with a noninteger-order (fractional) derivative. This window into the future of specific science disciplines using the fractional calculus lens suggests how what is seen entails a difference in scientific thinking and understanding

    High-Bandwidth Voltage-Controlled Oscillator based architectures for Analog-to-Digital Conversion

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    The purpose of this thesis is the proposal and implementation of data conversion open-loop architectures based on voltage-controlled oscillators (VCOs) built with ring oscillators (RO-based ADCs), suitable for highly digital designs, scalable to the newest complementary metal-oxide-semiconductor (CMOS) nodes. The scaling of the design technologies into the nanometer range imposes the reduction of the supply voltage towards small and power-efficient architectures, leading to lower voltage overhead of the transistors. Additionally, phenomena like a lower intrinsic gain, inherent noise, and parasitic effects (mismatch between devices and PVT variations) make the design of classic structures for ADCs more challenging. In recent years, time-encoded A/D conversion has gained relevant popularity due to the possibility of being implemented with mostly digital structures. Within this trend, VCOs designed with ring oscillator based topologies have emerged as promising candidates for the conception of new digitization techniques. RO-based data converters show excellent scalability and sensitivity, apart from some other desirable properties, such as inherent quantization noise shaping and implicit anti-aliasing filtering. However, their nonlinearity and the limited time delay achievable in a simple NOT gate drastically limits the resolution of the converter, especially if we focus on wide-band A/D conversion. This thesis proposes new ways to alleviate these issues. Firstly, circuit-based techniques to compensate for the nonlinearity of the ring oscillator are proposed and compared to equivalent state-of-the-art solutions. The proposals are designed and simulated in a 65-nm CMOS node for open-loop RO-based ADC architectures. One of the techniques is also validated experimentally through a prototype. Secondly, new ways to artificially increase the effective oscillation frequency are introduced and validated by simulations. Finally, new approaches to shape the quantization noise and filter the output spectrum of a RO-based ADC are proposed theoretically. In particular, a quadrature RO-based band-pass ADC and a power-efficient Nyquist A/D converter are proposed and validated by simulations. All the techniques proposed in this work are especially devoted for highbandwidth applications, such as Internet-of-Things (IoT) nodes or maximally digital radio receivers. Nevertheless, their field of application is not restricted to them, and could be extended to others like biomedical instrumentation or sensing.El propósito de esta tesis doctoral es la propuesta y la implementación de arquitecturas de conversión de datos basadas en osciladores en anillos, compatibles con diseños mayoritariamente digitales, escalables en los procesos CMOS de fabricación más modernos donde las estructuras digitales se ven favorecidas. La miniaturización de las tecnologías CMOS de diseño lleva consigo la reducción de la tensión de alimentación para el desarrollo de arquitecturas pequeñas y eficientes en potencia. Esto reduce significativamente la disponibilidad de tensión para saturar transistores, lo que añadido a una ganancia cada vez menor de los mismos, ruido y efectos parásitos como el “mismatch” y las variaciones de proceso, tensión y temperatura han llevado a que sea cada vez más complejo el diseño de estructuras analógicas eficientes. Durante los últimos años la conversión A/D basada en codificación temporal ha ganado gran popularidad dado que permite la implementación de estructuras mayoritariamente digitales. Como parte de esta evolución, los osciladores controlados por tensión diseñados con topologías de oscilador en anillo han surgido como un candidato prometedor para la concepción de nuevas técnicas de digitalización. Los convertidores de datos basados en osciladores en anillo son extremadamente sensibles (variación de frecuencia con respecto a la señal de entrada) así como escalables, además de otras propiedades muy atractivas, como el conformado espectral de ruido de cuantificación y el filtrado “anti-aliasing”. Sin embargo, su respuesta no lineal y el limitado tiempo de retraso alcanzable por una compuerta NOT restringen la resolución del conversor, especialmente para conversión A/D en aplicaciones de elevado ancho de banda. Esta tesis doctoral propone nuevas técnicas para aliviar este tipo de problemas. En primer lugar, se proponen técnicas basadas en circuito para compensar el efecto de la no linealidad en los osciladores en anillo, y se comparan con soluciones equivalentes ya publicadas. Las propuestas se diseñan y simulan en tecnología CMOS de 65 nm para arquitecturas en lazo abierto. Una de estas técnicas presentadas es también validada experimentalmente a través de un prototipo. En segundo lugar, se introducen y validan por simulación varias formas de incrementar artificialmente la frecuencia de oscilación efectiva. Para finalizar, se proponen teóricamente dos enfoques para configurar nuevas formas de conformación del ruido de cuantificación y filtrado del espectro de salida de los datos digitales. En particular, son propuestos y validados por simulación un ADC pasobanda en cuadratura de fase y un ADC de Nyquist de gran eficiencia en potencia. Todas las técnicas propuestas en este trabajo están destinadas especialmente para aplicaciones de alto ancho de banda, tales como módulos para el Internet de las cosas o receptores de radiofrecuencia mayoritariamente digitales. A pesar de ello, son extrapolables también a otros campos como el de la instrumentación biomédica o el de la medición de señales mediante sensores.Programa de Doctorado en Ingeniería Eléctrica, Electrónica y Automática por la Universidad Carlos III de MadridPresidente: Juan Pablo Alegre Pérez.- Secretario: Celia López Ongil.- Vocal: Fernando Cardes Garcí

    Phasor Parameter Modeling and Time-Synchronized Calculation for Representation of Power System Dynamics

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    The electric power grid is undergoing sustained disturbances. In particular, the extreme dynamic events disrupt normal electric power transfer, degrade power system operating conditions, and may lead to catastrophic large-scale blackouts. Accordingly, control applications are deployed to detect the inception of extreme dynamic events, and mitigate their causes appropriately, so that normal power system operating conditions can be restored. In order to achieve this, the operating conditions of the power system should be accurately characterized in terms of the electrical quantities that are crucial to control applications. Currently, the power system operating conditions are obtained through SCADA system and the synchrophasor system. Because of GPS time-synchronized waveform sampling capability and higher measurement reporting rate, synchrophasor system is more advantageous in tracking the extreme dynamic operating conditions of the power system. In this Dissertation, a phasor parameter calculation approach is proposed to accurately characterize the power system operating conditions during the extreme electromagnetic and electromechanical dynamic events in the electric power grid. First, a framework for phasor parameter calculation during both electromagnetic and electromechanical dynamic events is proposed. The framework aims to satisfy both P-class and M-class PMU algorithm design accuracy requirements with a single algorithm. This is achieved by incorporating an adaptive event classification and algorithm model switching mechanism, followed by the phasor parameter definition and calculation tailored to each identified event. Then, a phasor estimation technique is designed for electromagnetic transient events. An ambient fundamental frequency estimator based on UKF is introduced, which is leveraged to adaptively tune the DFT-based algorithm to alleviate frequency leakage. A hybridization algorithm framework is also proposed, which further reduces the negative impact caused by decaying DC components in electromagnetic transient waveforms. Then, a phasor estimation technique for electromechanical dynamics is introduced. A novel wavelet is designed to effectively extract time-frequency features from electromechanical dynamic waveforms. These features are then used to classify input signal types, so that the PMU algorithm modeling can be thereafter tailored specifically to match the underlying signal features for the identified event. This adaptability of the proposed algorithm results in higher phasor parameter estimation accuracy. Finally, the Dissertation hypothesis is validated through experimental testing under design and application test use cases. The associated test procedures, test use cases, and test methodologies and metrics are defined and implemented. The impact of algorithm inaccuracy and communication network distortion on application performance is also demonstrated. Test results performance is then evaluated. Conclusions, Dissertation contributions, and future steps are outlined at the end

    Adaptive beamforming and switching in smart antenna systems

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    The ever increasing requirement for providing large bandwidth and seamless data access to commuters has prompted new challenges to wireless solution providers. The communication channel characteristics between mobile clients and base station change rapidly with the increasing traveling speed of vehicles. Smart antenna systems with adaptive beamforming and switching technology is the key component to tackle the challenges. As a spatial filter, beamformer has long been widely used in wireless communication, radar, acoustics, medical imaging systems to enhance the received signal from a particular looking direction while suppressing noise and interference from other directions. The adaptive beamforming algorithm provides the capability to track the varying nature of the communication channel characteristics. However, the conventional adaptive beamformer assumes that the Direction of Arrival (DOA) of the signal of interest changes slowly, although the interference direction could be changed dynamically. The proliferation of High Speed Rail (HSR) and seamless wireless communication between infrastructure ( roadside, trackside equipment) and the vehicles (train, car, boat etc.) brings a unique challenge for adaptive beamforming due to its rapid change of DOA. For a HSR train with 250km/h, the DOA change speed can be up to 4⁰ per millisecond. To address these unique challenges, faster algorithms to calculate the beamforming weight based on the rapid-changing DOA are needed. In this dissertation, two strategies are adopted to address the challenges. The first one is to improve the weight calculation speed. The second strategy is to improve the speed of DOA estimation for the impinging signal by leveraging on the predefined constrained route for the transportation market. Based on these concepts, various algorithms in beampattern generation and adaptive weight control are evaluated and investigated in this thesis. The well known Generalized Sidelobe Cancellation (GSC) architecture is adopted in this dissertation. But it faces serious signal cancellation problem when the estimated DOA deviates from the actual DOA which is severe in high mobility scenarios as in the transportation market. Algorithms to improve various parts of the GSC are proposed in this dissertation. Firstly, a Cyclic Variable Step Size (CVSS) algorithm for adjusting the Least Mean Square (LMS) step size with simplicity for implementation is proposed and evaluated. Secondly, a Kalman filter based solution to fuse different sensor information for a faster estimation and tracking of the DOA is investigated and proposed. Thirdly, to address the DOA mismatch issue caused by the rapid DOA change, a fast blocking matrix generation algorithm named Simplifized Zero Placement Algorithm (SZPA) is proposed to mitigate the signal cancellation in GSC. Fourthly, to make the beam pattern robust against DOA mismatch, a fast algorithm for the generation of at beam pattern named Zero Placement Flat Top (ZPFT) for the fixed beamforming path in GSC is proposed. Finally, to evaluate the effectiveness and performance of the beamforming algorithms, wireless channel simulation is needed. One of the challenging aspects for wireless simulation is the coupling between Probability Density Function (PDF) and Power Spectral Density (PSD) for a random variable. In this regard, a simplified solution to simulate Non Gaussian wireless channel is proposed, proved and evaluated for the effectiveness of the algorithm. With the above optimizations, the controlled simulation shows that the at top beampattern can be generated 380 times faster than iterative optimization method and blocking matrix can be generated 9 times faster than normal SVD method while the same overall optimum state performance can be achieved

    Applications of MATLAB in Science and Engineering

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    The book consists of 24 chapters illustrating a wide range of areas where MATLAB tools are applied. These areas include mathematics, physics, chemistry and chemical engineering, mechanical engineering, biological (molecular biology) and medical sciences, communication and control systems, digital signal, image and video processing, system modeling and simulation. Many interesting problems have been included throughout the book, and its contents will be beneficial for students and professionals in wide areas of interest
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