• A Scalable Recoverable Skip List for Persistent Memory on NUMA Machines 

  Chowdhury, Sakib (University of Waterloo, 2021-10-20)

  Interest in recoverable, persistent-memory-resident (PMEM-resident) data structures is growing as availability of Intel Optane Data Center Persistent Memory increases. An interesting use case for in-memory, recoverable ...

• A Quantitative and Qualitative Empirical Evaluation of a Test Refactoring Tool 

  Iman, Aliasghar (University of Waterloo, 2021-10-18)

  Reducing the gap between what practitioners want vs. what researchers assume they want is one of the vital challenges in software projects. When it comes to software tools, many people develop tools, but only some tools ...

• Silver Nanowire-enhanced Microflake Electrically Conductive Adhesives for Flexible Hybrid Electronics 

  Argasinski, Hubert (University of Waterloo, 2021-10-08)

  Flexible hybrid electronics combine the power and performance of conventional integrated circuits with the large area, lower cost, and mechanical flexibility of printed, flexible electronics. To mount rigid, discrete ...

• Hedging in a Financial Market with Regime-Switching 

  Gomes, Adam Daniel (University of Waterloo, 2021-10-06)

  It is well-known that in the complete standard financial market model driven solely by Brownian motion, one can always hedge a given contingent claim starting from an appropriate initial wealth. In other words, there always ...

• Constructing an External Cavity Diode Laser for the Probing of Rydberg Excitons in Cu2O 

  Gross, Aaron (University of Waterloo, 2021-10-05)

  Cuprous oxide (Cu2O) is a direct bandgap semiconductor that presents a promising platform for the implementation of a solid state quantum simulator. This promise is in part due to the presence of excitons in the material ...

• High-Q Millimeter Wave RF Filters and Multiplexers 

  Jia, Huayong (University of Waterloo, 2021-10-04)

  For a long period of time, millimeter waves (mm-Wave) were considered unsuitable for wireless data transmission due to high attention while propagating in the atmosphere. Over the past few years, due to the vigorous ...

• A Flexible Ultralight Hardware Security Module for EPC RFID Tags 

  Ayoub, Ahmed (University of Waterloo, 2021-10-01)

  Due to the rapid growth of using Internet of Things (IoT) devices in daily life, the need to achieve an acceptable level of security and privacy for these devices is rising. Security risks may include privacy threats like ...

• Deep Reinforcement Learning Based Approach for Multi-Agent Control of Residential Electric Water Heaters for Distribution Load Management 

  Abraham, Kevin (University of Waterloo, 2021-10-01)

  The push towards decarbonization and electrification of the society is leading to increased electricity demand. Many countries, including Canada, are utilizing non-greenhouse gas (GHG) emitting sources and renewable energy ...

• Coordinated path following of unicycles : A nested invariant sets approach 

  Doosthoseini, Alireza; Nielsen, Christopher (Elsevier, 2015)

  We formulate a coordinated path following problem for N unicycle mobile robots as an instance of a nested set stabilization problem. Stabilization of the first set corresponds to driving the unicycles to their assigned ...

• Adaptive Streaming: From Bitrate Maximization to Rate-Distortion Optimization 

  Duanmu, Zhengfang (University of Waterloo, 2021-09-30)

  The fundamental conflict between the increasing consumer demand for better Quality-of-Experience (QoE) and the limited supply of network resources has become significant challenges to modern video delivery systems. Stat ...

• Cyber-Physical Resilience Enhancement Strategies for Modern Power Grids 

  Mohamed, Nancy (University of Waterloo, 2021-09-28)

  Continuous research efforts are dedicated to developing methods to improve existing security tools to better fit the nature of smart grids. However, there is no perfect security scheme for every potential attack threat. ...

• A Watermarking-Based Framework for Protecting Deep Image Classifiers Against Adversarial Attacks 

  Sun, Chen (University of Waterloo, 2021-09-27)

  Although deep learning-based models have achieved tremendous success in image-related tasks, they are known to be vulnerable to adversarial examples---inputs with imperceptible, but subtly crafted perturbation which fool ...

• Investigating the Influence of Electron Extraction Layers on the Photostability of Inverted Organic Solar Cells 

  Sadeghianlemraski, Mozhgan (University of Waterloo, 2021-09-27)

  Decades of active research on organic solar cells (OSCs) have recently led to a significant increase in their power conversion efficiency (PCE). However, large-scale commercialization of the technology has not yet been ...

• Applying Fully Homomorphic Encryption: Practices and Problems 

  Chen, Yao (University of Waterloo, 2021-09-24)

  Fully homomorphic encryption (FHE) has been regarded as the "holy grail" of cryptography for its versatility as a cryptographic primitive and wide range of potential applications. Since Gentry published the first theoretically ...

• Global Sampled-Data Regulation of a Class of Fully Actuated Invariant Systems on Simply Connected Nilpotent Matrix Lie Groups 

  McCarthy, Philip James; Nielsen, Christopher (IEEE, 2021-02-09)

  We examine a regulator problem for a class of fully actuated continuous-time invariant systems on Lie groups, using a discrete-time controller with constant sampling period. We present a smooth discrete-time control law ...

• Synchronized closed path following for a differential drive and manipulator robot 

  Li, Yuqian; Nielsen, Christopher (IEEE, 2016-05-23)

  We locally solve a synchronized path-following problem for a heterogeneous multiagent system consisting of a differential drive robot and a serial manipulator. Each is assigned a simple, regular, and closed curve in its ...

• A Local Solution to the Output Regulation Problem for Sampled-Data Systems on Commutative Matrix Lie Groups 

  McCarthy, Philip James; Nielsen, Christopher (IEEE, 2018-08-16)

  We present a smooth nonlinear control law for a kinematic plant on commutative matrix Lie groups that achieves regulation, if the state tracking and estimation errors are initialized in a suitable neighbourhood of identity. ...

• Mitigation of Cyber-Physical Attacks in Multi-Area Automatic Generation Control 

  Alhalali, Safoan; Nielsen, Christopher; El Shatshat, Ramadan A. (Elsevier, 2019-11)

  In recent years, several cyber-attacks have been recorded against sensitive monitoring systems. Among them is the automatic generation control (AGC) system, a fundamental control system used in all power networks. AGC ...

• Dual Conditions for Local Transverse Feedback Linearization 

  D'Souza, Rollen S.; Nielsen, Christopher (IEEE, 2019-01-21)

  Given a control-affine system and a controlled invariant submanifold, the local transverse feedback linearization problem is to determine whether or not the system is locally feedback equivalent to a system whose dynamics ...

• Local observers on linear Lie groups with linear estimation error dynamics 

  Koldychev, Mikhail; Nielsen, Christopher (IEEE, 2014-03-06)

  This technical note proposes local exponential observers for systems on linear Lie groups. We study two classes of systems. In the first class, the full state of the system evolves on a linear Lie group and is available ...

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