Stephen Oliver

ORCID: 0000-0003-3933-7543
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About
Contact & Profiles
Research Areas
  • Silicon Carbide Semiconductor Technologies
  • Energy Efficiency and Management
  • Building Energy and Comfort Optimization
  • GaN-based semiconductor devices and materials
  • Energy Load and Power Forecasting
  • BIM and Construction Integration
  • Multilevel Inverters and Converters
  • Advanced DC-DC Converters
  • Construction Project Management and Performance
  • Electric and Hybrid Vehicle Technologies
  • Augmented Reality Applications
  • Astronomy and Astrophysical Research
  • Ethics in medical practice
  • Corporate Taxation and Avoidance
  • Fiscal Policy and Economic Growth
  • Disaster Response and Management
  • Military Defense Systems Analysis
  • Urban Transport and Accessibility
  • Smart Grid Energy Management
  • Sensorless Control of Electric Motors
  • Medical Malpractice and Liability Issues
  • Technology Assessment and Management
  • Transportation Safety and Impact Analysis
  • Sustainable Building Design and Assessment
  • Knowledge Management and Sharing

Navitas Systems (United States)
2018-2022

Vrije Universiteit Amsterdam
2021

Teesside University
2020

University of Strathclyde
2004-2019

Stantec (Canada)
2017

University of Manchester
2016

University of California, Los Angeles
2016

University of Salford
1996

Gallium nitride (GaN) is a compound semiconductor that has tremendous potential to facilitate economic growth in industry silicon-based and currently faced with diminishing returns of performance versus cost investment. At material level, its high electric field strength electron mobility have already shown for frequency communications photonic applications. Advances on commercially viable large area substrates are now at the point where power conversion applications GaN cusp...

10.1088/1361-6463/aaaf9d article EN cc-by Journal of Physics D Applied Physics 2018-03-26

As a result of progressive use BIM in the AEC sector, amount diverse project information is increasing rapidly, thus necessitating interoperability tools, compatibility data, effective collaboration and sophisticated data management. Media-rich VR AR environments have been proven to help users better understand design solutions, however, they not quite advanced supporting collaboration. Relying on capabilities openBIM IFC schema, this study posits that shortcoming environment could be...

10.1016/j.autcon.2019.02.009 article EN cc-by Automation in Construction 2019-02-21

The 2016 IEEE Applied Power Electronics Conference featured more than 100 papers [1] based on gallium nitride (GaN) power components up to 650 V, yet market adoption of GaN in off-line alternating current (ac) or 400 V direct (dc) input converters has been slow. This article explores the physical material advantages versus silicon (Si) and compares early cascode approaches terms device, package, application design. A new approach is introduced where drive, logic, field-effect transistor...

10.1109/mpel.2016.2585474 article EN IEEE Power Electronics Magazine 2016-09-01

Abstract Contemporary communication mediums in isolation have reached a technological plateau, proximal is no longer limited by spatial or constraints. However, integration of and their application pedagogy do not appear to receive the attention they deserve outwith marketing social psychology research. This determinant AEC industries where forefront extends video conferencing high latency sharing open standard models. Underutilisation just missed opportunity; it source many cascading...

10.1186/s40327-019-0068-y article EN cc-by Visualization in Engineering 2019-06-01

10.1016/s1355-0306(04)71693-7 article EN Science & Justice 2004-04-01

Non-ancillary equipment makes significant contribution to building energy demand, consuming as much half of total consumption and three quarters during inoccupancy.Current proximity-as-utility scheduling does not reflect physical or social complexities mediating equipment, failing suitably represent seemingly incompatible with inoccupancy scheduling.This paper draws comparison between computers conventional occupants attempting identify the extent which it is applicable modelling.It...

10.3311/ccc2018-002 article EN Creative Construction Conference 2018 - Proceedings 2018-01-01

In this paper, we discuss how advancements in the integration of gallium nitride (GaN) power ICs leads to faster switching, higher efficiencies, simplifier designs and improved reliability. Navitas' integrated GaNSense™ technology features provide real-time sensing protection achieve these new levels.

10.1109/wipda56483.2022.9955260 article EN 2022-11-07

For pesticide registration, terrestrial ecotoxicity testing mainly focuses on assessing the effects of chemicals organisms living in soil (e.g., earthworms, springtails, microorganisms) and above-ground nontarget arthropods honey bees, parasitic wasps, predatory mites) that contribute to pest control sustainable agriculture.In these approaches, no attention is given rare or endangered species, while exposure at landscape level are rarely considered.The study Krishnan et al. (2020) makes an...

10.1002/etc.5113 article EN Environmental Toxicology and Chemistry 2021-06-24
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