Kevin Lee

ORCID: 0000-0002-2730-9150
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About
Contact & Profiles
Research Areas
  • Multilevel Inverters and Converters
  • IoT and Edge/Fog Computing
  • Cloud Computing and Resource Management
  • Sensorless Control of Electric Motors
  • Electric Motor Design and Analysis
  • GaN-based semiconductor devices and materials
  • Context-Aware Activity Recognition Systems
  • Phosphodiesterase function and regulation
  • Distributed and Parallel Computing Systems
  • Energy Efficient Wireless Sensor Networks
  • Microgrid Control and Optimization
  • Silicon Carbide Semiconductor Technologies
  • Scientific Computing and Data Management
  • Service-Oriented Architecture and Web Services
  • Ga2O3 and related materials
  • Advanced DC-DC Converters
  • Protein Degradation and Inhibitors
  • Software System Performance and Reliability
  • Multiple Myeloma Research and Treatments
  • Aortic aneurysm repair treatments
  • Opportunistic and Delay-Tolerant Networks
  • Neuroscience and Neuropharmacology Research
  • Software-Defined Networks and 5G
  • Blockchain Technology Applications and Security
  • Green IT and Sustainability

Deakin University
2019-2025

Eaton (United States)
2013-2024

Kempten University of Applied Sciences
2024

USA Mitchell Cancer Institute
2013-2024

Chemical Industry Press
2024

Southern California University for Professional Studies
2024

University of Southern California
2024

University of South Alabama
2012-2023

University of British Columbia
2011-2023

Purdue University West Lafayette
2023

Machine learning sits at the core of many essential products and services Facebook. This paper describes hardware software infrastructure that supports machine global scale. Facebook's workloads are extremely diverse: require different types models in practice. diversity has implications all layers system stack. In addition, a sizable fraction data stored Facebook flows through pipelines, presenting significant challenges delivering to high-performance distributed training flows....

10.1109/hpca.2018.00059 article EN 2018-02-01

Component-based software structuring principles are now commonplace at the application level; but componentization is far less established when it comes to building low-level systems software. Although there have been pioneering efforts in applying systems-building, these tended target specific domains (e.g., embedded systems, operating communications programmable networking environments, or middleware platforms). They also tend be targeted deployment environments standard personal computer...

10.1145/1328671.1328672 article EN ACM Transactions on Computer Systems 2008-02-01

Abstract The histone acetyltransferases CBP/p300 are involved in recurrent leukemia-associated chromosomal translocations and key regulators of cell growth. Therefore, efforts to generate inhibitors clinical value. We developed a specific potent acetyl-lysine competitive protein–protein interaction inhibitor, I-CBP112, that targets the bromodomains. Exposure human mouse leukemic lines I-CBP112 resulted substantially impaired colony formation induced cellular differentiation without...

10.1158/0008-5472.can-15-0236 article EN Cancer Research 2015-11-10

It is important for a robot to be able interpret natural language commands given by human. In this paper, we consider performing sequence of mobile manipulation tasks with instructions described in language. Given new environment, even simple task such as boiling water would performed quite differently depending on the presence, location and state objects. We start collecting dataset descriptions free-form corresponding grounded task-logs an online simulator. then build library...

10.1177/0278364915602060 article EN The International Journal of Robotics Research 2015-11-12

Edge, fog, and cloud computing provide complementary capabilities to enable distributed processing of IoT data. This requires offloading mechanisms, decision-making support for the dynamic availability resources, cooperation available nodes. paper proposes a novel 3-tier architecture that integrates edge, harness their collective strengths, facilitating optimised data across these tiers. Our approach optimises performance, reducing energy consumption, lowers costs. We evaluate our through...

10.3390/fi17010022 article EN cc-by Future Internet 2025-01-07

The status of the research on muon colliders is discussed and plans are outlined for future theoretical experimental studies. Besides continued work parameters a 3-4 0.5 TeV center-of-mass (CoM) energy collider, many studies now concentrating machine near 0.1 that could be factory s-channel production Higgs particles. We discuss various components in such colliders, starting from proton accelerator needed to generate pions heavy-Z target proceeding through phase rotation decay ($\pi \to \mu...

10.1103/physrevstab.2.081001 article EN cc-by Physical Review Special Topics - Accelerators and Beams 1999-08-03

One major benefit claimed for cloud computing is elasticity: the cost to a consumer of computation can grow or shrink with workload. This paper offers improved ways quantify elasticity concept, using data available consumer. We define measure that reflects financial penalty particular consumer, from under-provisioning (leading unacceptable latency unmet demand) over-provisioning (paying more than necessary resources needed support workload). have applied several workloads public cloud; our...

10.1145/2188286.2188301 article EN 2012-04-22

In evaluating GaN high-electron mobility transistors (HEMTs) for high-power applications, it is crucial to consider the device-level breakdown characteristics. This letter replaces conventional AlGaN barrier and common backbarrier with unstrained AlN, assesses voltage of AlN/GaN/AlN quantum well HEMTs gate-drain spacings in range 0.27-5.1 μm. The results are highlighted by a high 78 V spacing 390 nm, among best reported submicron-channel devices. addition, small-signal RF measurements showed...

10.1109/led.2019.2923085 article EN publisher-specific-oa IEEE Electron Device Letters 2019-06-14

This work demonstrates the high-frequency and high-power performance capacity of GaN high electron mobility transistors (HEMTs) on Si substrates. Using a T-gate <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${n}^{++}$ </tex-math></inline-formula> -GaN source/drain contacts, InAlN/GaN HEMT with gate length 55 nm source-drain spacing 175 shows maximum drain current notation="LaTeX">${I}_{{D,MAX}}$ 2.8 A/mm...

10.1109/led.2020.2984727 article EN publisher-specific-oa IEEE Electron Device Letters 2020-03-31

One of the problems pulse-width-modulation (PWM)-controlled ac machines is acoustic noise that could become unacceptable when used in sensitive environments. Random PWM (RPWM) industrial and commercial adjustable-speed drives (ASD) results partial transfer power from discrete spectrum (narrowband noise) output voltage to continuous (wideband noise), with advantageous effects on reducing motor drive system. In this paper, theoretical analysis as basis for RPWM presented. Five state-of-the-art...

10.1109/tia.2016.2616407 article EN IEEE Transactions on Industry Applications 2016-10-11

The coronavirus disease 2019 (COVID-19) pandemic is a rapidly changing circumstance with dramatic policy changes and universal efforts to deal the initial crisis minimize its consequences. To identify organ donation transplantation during this time, an anonymous web-based survey was distributed 19 select procurement organizations (OPOs) throughout United States comparing 90-day activity March-May 2020 2019. Seventeen OPOs responded (response rate of 89.5%). Organ authorization decreased by...

10.1111/ajt.16199 article EN cc-by-nc-nd American Journal of Transplantation 2020-07-13

We describe the status of our effort to realize a first neutrino factory and progress made in understanding problems associated with collection cooling muons towards that end. summarize physics can be done factories as well intense cold beams muons. The potential muon colliders is reviewed, both Higgs Factories compact high energy lepton colliders. timescale research development reviewed latest designs channels including promise ring coolers achieving longitudinal transverse simultaneously....

10.1103/physrevstab.6.081001 article EN cc-by Physical Review Special Topics - Accelerators and Beams 2003-08-14

Sensor networks provide a method of collecting environmental data for use in variety distributed applications. However, to date, limited support has been provided the development integrated monitoring and modeling Specifically, dynamism makes it difficult computational resources that are sufficient deal with changing conditions. This paper argues Cloud Computing model is good fit dynamic requirements modeling. We demonstrate Amazon EC2 can meet needs also be existing sensor network...

10.1109/nesea.2010.5678063 article EN 2010-11-01

The simultaneous online estimation algorithm of rotor time constant and speed for a speed-sensorless induction machine is proposed. With small signal injected to the flux command, method can accurately complete tuning <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$T_{r}$</tex></formula> over wide range estimation, including rated very low 1 Hz or even lower speeds under both no-load loaded...

10.1109/tie.2013.2288227 article EN IEEE Transactions on Industrial Electronics 2013-11-19
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