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D-Index & Metrics

Electronics and Electrical Engineering

D-Index
39
Citations
6506
World Ranking
4687
National Ranking
187

Overview

Hitoshi Okubo is affiliated with the Aichi Institute of Technology in Japan and has a research focus spanning several areas in engineering and materials science. Their body of work includes contributions to mechanical engineering, materials science, and subfields such as mechanical engineering, mechanics of materials, biomaterials, materials chemistry, and atomic and molecular physics and optics.

Okubo's research topics include:

  • Lubricants and Their Additives
  • Tribology and Wear Analysis
  • Force Microscopy Techniques and Applications
  • Adhesion, Friction, and Surface Interactions
  • Diamond and Carbon-based Materials Research
  • Polymer crystallization and properties
  • Biodegradable polymer synthesis and properties

Their publication record features articles in notable venues such as The Proceedings of Mechanical Engineering Congress Japan, Tribology Letters, Wear, Tribology online, and Polymers. The following papers exemplify Okubo's research contributions:

  • "Tribo-Raman-SLIM observation for diamond-like carbon lubricated with fully formulated oils with different wear levels at DLC/steel contacts" (2020, Wear)
  • "In Situ Raman-SLIM Monitoring for the Formation Processes of MoDTC and ZDDP Tribofilms at Steel/Steel Contacts under Boundary Lubrication" (2020, Tribology online)
  • "Effects of a Twin-Screw Extruder Equipped with a Molten Resin Reservoir on the Mechanical Properties and Microstructure of Recycled Waste Plastic Polyethylene Pellet Moldings" (2021, Polymers)
  • "Correlation between friction and wear of rubber: An experimental approach based on the disconnections of Stribeck curves" (2024, Wear)
  • "Enhancement of the Surface Properties on Polypropylene Film Using Side-Chain Crystalline Block Copolymers" (2020, Polymers)

Frequent collaborators in Okubo's work include Shinya Sasaki and Ken Nakano, each with 16 coauthored publications, as well as Daisuke IBA, Yoshinobu Tsujii, and Shigeru Yao.

Okubo's research covers both fundamental and applied aspects of tribology and materials engineering, employing techniques such as Raman spectroscopy for tribofilm monitoring and studying the mechanical and surface properties of polymers and diamond-like carbon materials. This multidisciplinary approach connects developments in engineering mechanics with materials chemistry and surface interactions.

Best Publications

  • A novel technique for partial discharge and breakdown investigation based on current pulse waveform analysis

    H. Okubo;N. Hayakawa

  • Application of functionally graded material for reducing electric field on electrode and spacer interface

    M. Kurimoto;K. Kato;M. Hanai;Y. Hoshina

  • Technical Development on Partial Discharge Measurement and Electrical Insulation Techniques for Low Voltage Motors Driven by Voltage Inverters

    H. Okubo;N. Hayakawa;G.C. Montanari

  • Cross-equipment Evaluation of Partial Discharge Measurement and Diagnosis Techniques in Electric Power Apparatus for Transmission and Distribution

    M. Hikita;S. Okabe;H. Murase;H. Okubo

  • Cross-equipment study on charging phenomena of solid insulators in high voltage equipment

    H. Hama;T. Hikosaka;S. Okabe;H. Okubo

  • The relationship between partial discharge current pulse waveforms and physical mechanisms

    H. Okubo;N. Hayakawa;A. Matsushita

  • Weibull statistical analysis of area and volume effects on the breakdown strength in liquid nitrogen

    H. Goshima;N. Hayakawa;M. Hikita;H. Okubo

  • Detection of harmful metallic particles inside gas insulated switchgear using UHF sensor

    S. Okabe;T. Yamagiwa;H. Okubo

  • Recent trend and future perspectives in electrical insulation techniques in relation to sulfur hexafluoride (SF 6 ) substitutes for high voltage electric power equipment

    Hitoshi Okubo;Abderrahmane Beroual

  • Research and development on 145 kV/40 kA one break vacuum circuit breaker

    H. Saitoh;H. Ichikawa;A. Nishijima;Y. Matsui

  • Surface charges on alumina in vacuum with varying surface roughness and electric field distribution

    T. Hosono;K. Kato;A. Morita;H. Okubo

  • Feasilbility study on application of high voltage and high power vacuum circuit breaker

    H. Okubo;S. Yanabu

  • Electrical insulation characteristics of superconducting power apparatus

    M. Hara;H. Okubo

  • Partial Discharge Propagation and Degradation Characteristics of Magnet Wire for Inverter-Fed Motor under Surge Voltage Application

    N. Hayakawa;H. Inano;K. Inuzuka;M. Morikawa

  • Surface charge accumulation and partial discharge activity for small gaps of electrode/epoxy interface in sf 6 gas

    D.-E.A. Mansour;H. Kojima;N. Hayakawa;F. Endo

  • New aspects of UHF PD diagnostics on gas-insulated systems

    Shigemitsu Okabe;Genyo Ueta;Hiroyuki Hama;Takashi Ito

  • Fabrication and simulation of permittivity graded materials for electric field grading of gas insulated power apparatus

    Naoki Hayakawa;Junya Ishiguro;Hiroki Kojima;Katsumi Kato

  • Enhancement of electrical insulation performance in power equipment based on dielectric material properties

    H. Okubo

  • Breakdown mechanism of liquid nitrogen viewed from area and volume effects

    N. Hayakawa;H. Sakakibara;H. Goshima;M. Hikita

  • Development of Electrical Insulation Techniques in Vacuum for Higher Voltage Vacuum Interrupters

    Hitoshi Okubo

  • Fundamental insulation characteristic of high-pressure CO/sub 2/ gas under actual equipment conditions

    S. Okabe;H. Goshima;A. Tanimura;S. Tsuru

  • Evaluation of UHF method for partial discharge measurement by simultaneous observation of UHF signal and current pulse waveforms

    M Yoshida;H Kojima;N Hayakawa;F Endo

Frequent Co-Authors

Shigemitsu Okabe
Shigemitsu Okabe TEPCO (Japan)
Gian Carlo Montanari
Gian Carlo Montanari Florida State University

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