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Ratnak Sok

Waseda University

1-104 Totsukamachi, Shinjuku-ku

tokyo, 169-8050

Japan

SCHOLARLY PAPERS

12

DOWNLOADS

634

TOTAL CITATIONS

2

Scholarly Papers (12)

1.

A Digital-Twin Simulation on Battery Eco-Cooling to Improve the Energy Consumption of Electric Vehicles Under Transient Driving Cycle and Gps Mission Profiles

Number of pages: 38 Posted: 23 Jul 2024
Waseda University, Waseda University, Waseda University, affiliation not provided to SSRN, affiliation not provided to SSRN and Waseda University
Downloads 109 (645,052)

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Battery pre-cooling, digital-twin simulation, energy consumption, chassis dynamometer test, WLTC and GPS profile, equivalent circuit model

2.
Downloads 106 (659,652)

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BEV, DFN battery model, global sensitivity, parameter identification, real-driving cycles

Experimental and Numerical Analysis of the Effects of Thermal Degradation on Carbon Monoxide Oxidation Characteristics of a Three-Way Catalyst

Number of pages: 23 Posted: 08 Sep 2023
Waseda University, Waseda University, Waseda University and Waseda University
Downloads 45 (1,144,483)

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three-way catalyst, catalyst aging, thermal degradation, emissions control, modeling and simulation

Experimental and Numerical Analysis of the Effects of Thermal Degradation on Carbon Monoxide Oxidation Characteristics of a Three-Way Catalyst

Number of pages: 23 Posted: 30 Nov 2023
Waseda University, Waseda University, Waseda University and Waseda University
Downloads 44 (1,157,169)
Citation 1

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Three-way catalyst, catalyst aging, thermal degradation, emissions control, Modeling and Simulation

Impacts of Pre-Spark Heat Release on Unstretched Laminar Burning Velocity in Advanced Flex-Fuel Gasoline-Ethanol Engines

Number of pages: 34 Posted: 02 Oct 2023
Waseda University, affiliation not provided to SSRN, Waseda University, Waseda University and Waseda University
Downloads 48 (1,131,842)

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Flex-fuel engine, pre-spark heat release, kinetics simulation, laminar flame speed, tumble adaptor

Impacts of Pre-Spark Heat Release on Unstretched Laminar Burning Velocity in Advanced Flex-Fuel Gasoline-Ethanol Engines

Number of pages: 33 Posted: 23 Oct 2023
Waseda University, affiliation not provided to SSRN, Waseda University, Waseda University and Waseda University
Downloads 22 (1,486,852)

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Flex-fuel engines, Pre-spark heat release, kinetics simulation, laminar burning velocity

5.
Downloads 69 (891,180)
Citation 1

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Physics-informed neural network, NCA/Gr.SiOx cell, battery state, Tesla Model Y, real driving cycles

6.
Downloads 42 (1,157,785)

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IC engines, three-way catalyst, oxygen storage capacity, dithering

7.

Impact of Pre-Chamber Geometry on Combustion Evolution and Flame Extinction Using a Rapid Compression Expansion Machine Fueled with Methane and Methane/Hydrogen Blends

Number of pages: 40 Posted: 20 Aug 2025
University of Naples Federico II, University of Naples Federico II, University of Naples Federico II, Waseda University, University of Naples Federico II and Waseda University
Downloads 33 (1,277,121)

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Pre-chamber geometry, RCEM experiments, 0D modelling, methane/hydrogen blends, flame quenching.

8.

Impact of pre-chamber geometry on combustion evolution and flame extinction using a rapid compression expansion machine fuelled with methane and methane/hydrogen blends

Number of pages: 40 Posted: 17 Sep 2025
University of Naples Federico II, University of Naples Federico II, University of Naples Federico II, Waseda University, University of Naples Federico II and Waseda University
Downloads 26 (1,372,601)

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Pre-chamber geometry, RCEM experiments, 0D modelling, methane/hydrogen blends, flame quenching.

9.
Downloads 23 (1,424,331)

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Physics-based model, BTMS, electro-thermal, driving cycle, Tesla Model Y

10.
Downloads 23 (1,411,822)

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Battery thermal management, detailed multi-physics pack model, reverse-engineering, battery heating/cooling, winter-summer tests

11.

Quantitative and qualitative analysis of two degradation factors on oxygen storage capacity of Pd/CeO2-ZrO2 three-way catalysts

Number of pages: 35 Posted: 23 Mar 2026
Sota Aoyama, Ratnak Sok and Jin Kusaka
Waseda University, Waseda University and Waseda University
Downloads 22 (1,424,331)

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Three-way catalyst, degradation, oxygen storage capacity, activation energy, active site density

12.

Impacts of Low-Temperature Heat Release on Unstretched Laminar Burning Velocity in Advanced Flex-Fuel Gasoline-Ethanol Engines

Number of pages: 36 Posted: 11 May 2024
Waseda University, affiliation not provided to SSRN, Waseda University, Waseda University and Waseda University
Downloads 22 (1,424,331)

Abstract:

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Flex-fuel engines, LTHR, kinetics simulation, laminar burning velocity, 1D/3D CFD