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Low Power Class B Power Amplifier For Healthcare Application, Wei Cai 2016 University of California, Irvine

Low Power Class B Power Amplifier For Healthcare Application, Wei Cai

Heng Gu


The objective of this research was to design a 2.4 GHz class AB Power Amplifier (PA), with 0.18um Semiconductor Manufacturing International Corporation (SMIC) CMOS technology by using Cadence software, for health care applications. The ultimate goal for such application is to minimize the trade-offs between performance and cost, and between performance and low power consumption design. This paper introduces the design of a 2.4GHz class D power amplifier which consists of two stage amplifiers. This power amplifier can transmit 15dBm output power to a 50Ω load. The power added efficiency was 50% and the total power consumption ...


Si-Based Class Ab Power Amplifier For Wireless Medical Sensor Network, Wei Cai 2016 University of California, Irvine

Si-Based Class Ab Power Amplifier For Wireless Medical Sensor Network, Wei Cai

Heng Gu

The objective of this research was to design a 2.4 GHz class AB Power Amplifier (PA), with 0.18um Semiconductor Manufacturing International Corporation (SMIC) CMOS technology by using Cadence software, for health care applications. The ultimate goal for such application is to minimize the trade-offs between performance and cost, and between performance and low power consumption design. This power amplifier can transmit 8.5 dBm output power to a 50Ω load. The power added efficiency is 8.2% at 1dB compression point and the power gain is 10dB, the total power consumption is 0.15W. The performance of the ...


Prospective Doctoral Statement For The University Of Southern California's School Of Cinematic Arts Media Arts + Practice Program, Gabriel Leiner 2016 University of Southern California

Prospective Doctoral Statement For The University Of Southern California's School Of Cinematic Arts Media Arts + Practice Program, Gabriel Leiner

Gabriel Leiner

After visiting L.A. again and seeing the beautiful fountains on the University of Southern California's campus I am filled with all kinds of ideas about the future and brimming with energy. To all those at the University of Southern California's Cinematic Arts Department, thanks for reading my ideas over the past couple years and helping me to evolve and become a better person and a better writer. Starting a position as a doctoral student in the Media Arts + Practice Program in 2016 is an exciting opportunity. I've got a really positive outlook about Kiss The Water.


Compact Dual-Mode Microstrip Band Reject Filters Based On Koch Fractal Geometry, Hayder S. Ahmed, Ali J. Salim, Jawad K. Ali 2016 Deprtment of Electrical Engineering, University of Technology, Iraq

Compact Dual-Mode Microstrip Band Reject Filters Based On Koch Fractal Geometry, Hayder S. Ahmed, Ali J. Salim, Jawad K. Ali

Hayder S. Ahmed

In this paper, a new fractal based microstrip dual-mode band stop filter (BSF) has been presented. The proposed filter structure is essentially based on that of the triangular patch resonators with an embedded slit structure. The Koch fractal geometry has been applied to the uncoupled side lengths of the triangular patch resonator. The filter structure has been modeled and its performance is evaluated using the commercially available EM simulator, Sonnet. Results reveal that the resulting dual-mode response is highly dependent on the uncoupled side lengths of the triangular patch resonator. Parametric study has been conducted to explore the effect of ...


Delay-Independent Stability Analysis Of Linear Time-Delay Systems Based On Frequency, Xianwei Li, Huijun Gao, Keqin Gu 2016 Harbin Institute of Technology

Delay-Independent Stability Analysis Of Linear Time-Delay Systems Based On Frequency, Xianwei Li, Huijun Gao, Keqin Gu

SIUE Faculty Research, Scholarship, and Creative Activity

This paper studies strong delay-independent stability of linear time-invariant systems. It is known that delay-independent stability of time-delay systems is equivalent to some frequency-dependent linear matrix inequalities. To reduce or eliminate conservatism of stability criteria, the frequency domain is discretized into several sub-intervals, and piecewise constant Lyapunov matrices are employed to analyze the frequency-dependent stability condition. Applying the generalized Kalman–Yakubovich–Popov lemma, new necessary and sufficient criteria are then obtained for strong delay-independent stability of systems with a single delay. The effectiveness of the proposed method is illustrated by a numerical example.


The Influence Of The Electric Supply Industry On Economic Growth In Less Developed Countries, Edward Richard Bee 2016 University of Southern Mississippi

The Influence Of The Electric Supply Industry On Economic Growth In Less Developed Countries, Edward Richard Bee

Dissertations

This study measures the impact that electrical outages have on manufacturing production in 135 less developed countries using stochastic frontier analysis and data from World Bank’s Investment Climate surveys. Outages of electricity, for firms with and without backup power sources, are the most frequently cited constraint on manufacturing growth in these surveys.

Outages are shown to reduce output below the production frontier by almost five percent in Africa and by a lower percentage in South Asia, Southeast Asia and the Middle East and North Africa. Production response to outages is quadratic in form. Outages also increase labor cost, reduce ...


Resilience Of Backbone Provider Networks, Egemen K. Çetinkaya, Justin P. Rohrer, James P. G. Sterbenz 2016 Missouri University of Science and Technology

Resilience Of Backbone Provider Networks, Egemen K. Çetinkaya, Justin P. Rohrer, James P. G. Sterbenz

Egemen K. Çetinkaya

Network topology models have drawn tremendous interest from the research community. Traditionally, Internet modelling has been done at the AS or router level, in part because this information is most available from tomography and public databases such as Rocketfuel. We argue that physical topology analysis is important for a more complete understanding of Internet structure, particularly for insight into the resilience and survivability of infrastructure against attacks and natural disasters. However, complexity and lack of complete data sets has hindered accurate topology modelling. In this short paper, we show through a sample case that physical topologies have significantly different characteristics ...


Protocols For Highly-Dynamic Airborne Networks, Egemen K. Çetinkaya, Justin P. Rohrer, Abdul Jabbar, Mohammed J. F. Alenazi, Dongsheng Zhang, Dan S. Broyles, Kamakshi Sirisha Pathapati, Hemanth Narra, Kevin Peters, Santosh Ajith Gogi, James P. G. Sterbenz 2016 Missouri University of Science and Technology

Protocols For Highly-Dynamic Airborne Networks, Egemen K. Çetinkaya, Justin P. Rohrer, Abdul Jabbar, Mohammed J. F. Alenazi, Dongsheng Zhang, Dan S. Broyles, Kamakshi Sirisha Pathapati, Hemanth Narra, Kevin Peters, Santosh Ajith Gogi, James P. G. Sterbenz

Egemen K. Çetinkaya

End-to-end communication in highly-dynamic airborne networks is challenging due to the presence of highly mobile nodes and the inherent nature of wireless communication channels. Domain-specific protocols are required that can address these challenges and enable reliable transmission of data in this environment. We develop the ANTP (airborne network and transport protocols) suite that operates in this highly-dynamic environment while utilising cross-layer optimisations between the physical, MAC, network, and transport layers. We show how each component in the ANTP suite outperforms the traditional TCP/IP and MANET protocols through simulation using ns-3. Having verified these protocols through simulation and analysis, the ...


Future Internet Resilience For Massive Failures, Yufei Cheng, Egemen K. Çetinkaya, James P. G. Sterbenz 2016 Missouri University of Science and Technology

Future Internet Resilience For Massive Failures, Yufei Cheng, Egemen K. Çetinkaya, James P. G. Sterbenz

Egemen K. Çetinkaya

No abstract provided.


Numerical Modeling Of Periodic Composite Media For Electromagnetic Shielding Application, Dagang Wu, Rui Qiang, Ji Chen, Ce Liu, Marina Koledintseva, James L. Drewniak, Bruce Archambeault 2016 Missouri University of Science and Technology

Numerical Modeling Of Periodic Composite Media For Electromagnetic Shielding Application, Dagang Wu, Rui Qiang, Ji Chen, Ce Liu, Marina Koledintseva, James L. Drewniak, Bruce Archambeault

James K Wu MD

This paper describes a methodology to extract effective electrical properties for periodic composite medium. The extraction algorithm is based on a periodic finite-difference time-domain (FDTD) method. The results are compared with conventional mixing theories and 3D Fourier series expansion methods. Two results show satisfactory agreement. With the extracted effective permittivity and conductivity, one can readily use these parameters to study electrical properties of composite materials with arbitrary micro-geometry and the shielding effects of using composite materials.


Modeling Noise Coupling Between Package And Pcb Power/Ground Planes With An Efficient 2-D Fdtd/Lumped Element Method, Ting-Kuang Wang, Sin-Ting Chen, Chi-Wei Tsai, Sung-Mao Wu, James L. Drewniak, Tzong-Lin Wu 2016 Missouri University of Science and Technology

Modeling Noise Coupling Between Package And Pcb Power/Ground Planes With An Efficient 2-D Fdtd/Lumped Element Method, Ting-Kuang Wang, Sin-Ting Chen, Chi-Wei Tsai, Sung-Mao Wu, James L. Drewniak, Tzong-Lin Wu

James K Wu MD

An efficient numerical approach based on the 2-D finite-difference time-domain (FDTD) method is proposed to model the power/ground plane noise or simultaneously switching noise (SSN), including the interconnect effect between the package and the print circuit board (PCB). The space between the power and ground planes on the package and PCB are meshed with 2-D cells. The equivalent R-L-C circuits of the via and the solder balls connecting the package and PCB can be incorporated into a 2-D Yee cell based on a novel integral formulation in the time domain. An efficient recursive updating algorithm is proposed to fit ...


Representation Of Permittivity For Multiphase Dielectric Mixtures In Fdtd Modeling, Marina Koledintseva, J. Wu, H. Zhang, James L. Drewniak, Konstantin Rozanov 2016 Missouri University of Science and Technology

Representation Of Permittivity For Multiphase Dielectric Mixtures In Fdtd Modeling, Marina Koledintseva, J. Wu, H. Zhang, James L. Drewniak, Konstantin Rozanov

James K Wu MD

A simple method of approximating frequency characteristics of composites in a form convenient for time-domain numerical modeling is proposed. The frequency characteristics can be obtained from experiment or calculations based on the Maxwell Garnett mixing formalism. The resultant frequency characteristic might be of a complex shape corresponding to a combination of a number of absorption peaks. The approximation is made by a series of Debye-like terms using a genetic algorithm (GA). This leads to the necessity of taking a number of terms in the approximating series. Every term corresponds to its pole, i.e., the frequency where the maximum loss ...


Fdtd Modeling Of Isotropic Dispersive Magnetic Materials, Jing Wu, James L. Drewniak, Marina Koledintseva, David Pommerenke 2016 Missouri University of Science and Technology

Fdtd Modeling Of Isotropic Dispersive Magnetic Materials, Jing Wu, James L. Drewniak, Marina Koledintseva, David Pommerenke

James K Wu MD

Numerical analysis using the finite-difference time-domain (FDTD) algorithm with a piecewise linear recursive convolution (PLRC) procedure for linear isotropic dispersive magnetic materials is presented. The frequency dependence of susceptibility used for this algorithm is represented in Debye, narrowband Lorentzian, and wideband Lorentzian forms, depending on the ratio of the resonance frequency and the resonance line width. Some numerical examples along with measurements are provided.


Spin Curves For Microchem S1800 (1805, 1813, 1818) Series Positive Resist, Mohsen Azadi, Gerald G. Lopez 2016 Singh Center for Nanotechnology

Spin Curves For Microchem S1800 (1805, 1813, 1818) Series Positive Resist, Mohsen Azadi, Gerald G. Lopez

Tool Data

Spin curves for MicroChem's S1805, S1813, and S1818 were generated and mapped using the Filmetrics F50. Statistical measurements were performed (N=85) and are reported here.


A Digital Game Maturity Model, Saiqa Aleem 2016 The University of Western Ontario

A Digital Game Maturity Model, Saiqa Aleem

Electronic Thesis and Dissertation Repository

Game development is an interdisciplinary concept that embraces artistic, software engineering, management, and business disciplines. Game development is considered as one of the most complex tasks in software engineering. Hence, for successful development of good-quality games, the game developers must consider and explore all related dimensions as well as discussing them with the stakeholders involved.

This research facilitates a better understanding of important dimensions of digital game development methodology. The increased popularity of digital games, the challenges faced by game development organizations in developing quality games, and severe competition in the digital game industry demand a game development process maturity ...


Social Learning And Adoption Of New Behavior In A Virtual Agent Society, Benjamin D. Nye, Barry G. Silverman 2016 University of Pennsylvania

Social Learning And Adoption Of New Behavior In A Virtual Agent Society, Benjamin D. Nye, Barry G. Silverman

Barry G Silverman

Social learning and adoption of new behavior govern the rise of a variety of behaviors: from actions as mundane as dance steps to those as dangerous as new ways to make IED detonators. However, agents in immersive virtual environments lack the ability to realistically simulate the spread of new behavior. To address this gap, a cognitive model was designed that represents the well-known socio-cognitive factors of attention, social influence, and motivation that influence learning and the adoption of a new behavior. To explore the effectiveness of this model, simulations modeled the spread of two competing memes in Hamariyah, an archetypal ...


Validating Agent Based Social Systems Models, Gnana K. Bharathy, Barry G. Silverman 2016 University of Pennsylvania

Validating Agent Based Social Systems Models, Gnana K. Bharathy, Barry G. Silverman

Barry G Silverman

Validating social systems is not a trivial task. The paper outlines some of our past efforts in validating models of social systems with cognitively detailed agents. It also presents some of the challenges faced by us. A social system built primarily of cognitively detailed agents can provide multiple levels of correspondence, both at observable and abstract aggregated levels. Such a system can also pose several challenges including large feature spaces, issues in information elicitation with database, experts and news feeds, counterfactuals, fragmented theoretical base, and limited funding for validation. Our own approach to validity assessment is to consider the entire ...


Volume Holographic Recording And Readout For 90-Deg Geometry, Partha P. Banerjee, Monish Ranjan Chatterjee, Nickolai Kukhtarev, Tatiana Kukhtareva 2016 University of Dayton

Volume Holographic Recording And Readout For 90-Deg Geometry, Partha P. Banerjee, Monish Ranjan Chatterjee, Nickolai Kukhtarev, Tatiana Kukhtareva

Monish R. Chatterjee

When a prerecorded cross-beam hologram is reconstructed (so-called edge-lit readout) with a uniform plane wave and a point source, the resulting exact solutions reveal Bessel-function-type diffracted beam profiles, which are fundamentally modified under weak propagational diffraction. The case of a profiled beam readout with propagational diffraction may be analyzed using a transfer function approach based on 2-D Laplace transforms. In a second series of investigations, dynamic readout from a cross-beam volume hologram recorded with two orthogonal uniform plane waves is considered for various dependences of the refractive index modulation with intensity. Typically, refractive index profiles that are proportional to the ...


Class D Power Amplifier For Medical Application, Wei Cai 2016 University of California, Irvine

Class D Power Amplifier For Medical Application, Wei Cai

Kevin Lee


The objective of this research was to design a 2.4 GHz class AB Power Amplifier (PA), with 0.18um Semiconductor Manufacturing International Corporation (SMIC) CMOS technology by using Cadence software, for health care applications. The ultimate goal for such application is to minimize the trade-offs between performance and cost, and between performance and low power consumption design. This paper introduces the design of a 2.4GHz class D power amplifier which consists of two stage amplifiers. This power amplifier can transmit 15dBm output power to a 50Ω load. The power added efficiency was 50% and the total power consumption ...


Class D Power Amplifier For Medical Application, Wei Cai 2016 University of California, Irvine

Class D Power Amplifier For Medical Application, Wei Cai

Kevin Lee


The objective of this research was to design a 2.4 GHz class AB Power Amplifier (PA), with 0.18um Semiconductor Manufacturing International Corporation (SMIC) CMOS technology by using Cadence software, for health care applications. The ultimate goal for such application is to minimize the trade-offs between performance and cost, and between performance and low power consumption design. This paper introduces the design of a 2.4GHz class D power amplifier which consists of two stage amplifiers. This power amplifier can transmit 15dBm output power to a 50Ω load. The power added efficiency was 50% and the total power consumption ...


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