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Lei Zhou

National University of Singapore (NUS)

Research Fellow

1E Kent Ridge Road

NUHS Tower Block Level 7

Singapore, 119228

Singapore

SCHOLARLY PAPERS

11

DOWNLOADS

490

TOTAL CITATIONS

8

Scholarly Papers (11)

1.

Effects of Hydrogen Injection Timing and Injection Pressure on Mixture Formation and Combustion Characteristics of a Hydrogen Direct Injection Engine

Number of pages: 33 Posted: 22 Sep 2023
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Tianjin University, affiliation not provided to SSRN, Tianjin University and National University of Singapore (NUS)
Downloads 122 (604,538)
Citation 7

Abstract:

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Hydrogen engine, Direct injection, Injection pressure, Mixture formation

Is Innovation Slowing Down? Insights from the AIMS Framework of Patent Values

Number of pages: 27 Posted: 15 Aug 2024
National University of Singapore (NUS), National University of Singapore (NUS) - Department of Mathematics, National University of Singapore (NUS) and Technische Universitat Berlin - Software and Algorithms for Discrete Optimization
Downloads 83 (798,777)

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Technological Innovation, Patent Valuation, Scientific Dilution, Market Recognition, Strategical Issuance

Is Innovation Slowing Down? Insights from the Aims Framework of Patent Values

Number of pages: 27 Posted: 26 Sep 2024
National University of Singapore (NUS), National University of Singapore (NUS) - Department of Mathematics, National University of Singapore (NUS) and Technische Universitat Berlin - Software and Algorithms for Discrete Optimization
Downloads 29 (1,371,100)
Citation 1

Abstract:

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Technological Innovation, Patent Valuation, Scientific Dilution, Market Recognition, Strategic Issuance

Pricing Kernel (Non)Monotonicity and Conditional Information

Number of pages: 39 Posted: 08 Jan 2026
National University of Singapore (NUS), City University of Hong Kong (CityU), Blockchain Research Center Humboldt-Universität zu Berlin, Humboldt-University of Berlin and National University of Singapore (NUS)
Downloads 45 (1,196,631)

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Pricing kernel, Kernel estimation, Risk-neutral density, Cryptocurrency, Monotonicity

Pricing Kernel (Non)Monotonicity and Conditional Information

Number of pages: 40 Posted: 17 Mar 2026
National University of Singapore (NUS), City University of Hong Kong (CityU), Blockchain Research Center Humboldt-Universität zu Berlin, Humboldt-University of Berlin and National University of Singapore (NUS)
Downloads 30 (1,415,710)

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Pricing kernel, Kernel estimation, cryptocurrency, Monotonicity, Risk-neutral density

Pricing Kernel (Non)Monotonicity and Conditional Information

Number of pages: 40 Posted: 13 Jul 2026
National University of Singapore (NUS), City University of Hong Kong (CityU), Blockchain Research Center Humboldt-Universität zu Berlin, Humboldt-University of Berlin and National University of Singapore (NUS)
Downloads 9

Abstract:

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Pricing kernel, Kernel estimation, Cryptocurrency, Monotonicity, Risk-neutral density

Pricing Kernel (Non)Monotonicity and Conditional Information

Number of pages: 40 Posted: 14 Jul 2026
National University of Singapore (NUS), City University of Hong Kong (CityU), Blockchain Research Center Humboldt-Universität zu Berlin, Humboldt-University of Berlin and National University of Singapore (NUS)
Downloads 8

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Pricing kernel, Kernel estimation, Cryptocurrency, Monotonicity, Risk-Neutral Density

Effects of B and Si addition on the microstructure and tribological properties of FeCoNiCrCu high-entropy alloy composite coatings

Number of pages: 31 Posted: 23 Sep 2025
Civil Aviation University of China, Civil Aviation University of China, Civil Aviation University of China, Aero Engine Corporation of China and National University of Singapore (NUS)
Downloads 23 (1,473,203)

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Annular oscillating laser, High-entropy alloy, Microstructure, Wear mechanisms

Effects of B and Si addition on the microstructure and tribological properties of FeCoNiCrCu high-entropy alloy composite coatings

Number of pages: 31 Posted: 04 Sep 2025
Civil Aviation University of China, Civil Aviation University of China, Civil Aviation University of China, Aero Engine Corporation of China and National University of Singapore (NUS)
Downloads 10 (1,614,412)

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Annular oscillating laser, High-entropy alloy, Microstructure, Wear mechanisms

5.

Synergistic optimization of flow channel geometry in anion exchange membrane electrolyzers: a 3D multiphysics analysis for enhanced mass transfer and performance

Number of pages: 42 Posted: 30 Apr 2026
Tianjin University of Technology and Education, Shandong University of Technology, Tianjin University, Shandong University of Technology, Shandong University of Technology, Tianjin University of Technology and Education, National University of Singapore (NUS) and Tianjin University
Downloads 31 (1,470,786)

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AEMWE, flow field design, mass transfer efficiency, voltage loss;

6.

Optimization on the Combustion and Performance of High-Egr Engine by Air-Assisted Pre-Chamber Turbulent Jet Ignition (Aptji)

Number of pages: 34 Posted: 27 Feb 2025
affiliation not provided to SSRN, affiliation not provided to SSRN, Tianjin University, Tianjin University and National University of Singapore (NUS)
Downloads 31 (1,318,317)

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Turbulent jet ignition, air-assisted pre-chamber, Combustion, emissions, high-EGR rate

7.

Innovation Value Discrepancy and Its Role in Shaping Firms’ Short-Term Gains and Sustainable Growth

Number of pages: 52 Posted: 14 Nov 2025
National University of Singapore (NUS), National University of Singapore (NUS) - Department of Mathematics, National University of Singapore (NUS) and affiliation not provided to SSRN
Downloads 28 (1,372,601)

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technological innovation, firm growth, Market Recognition, Patent Valuation, Competitive advantage

8.

The Inhibition of Co2 Twin-Fluid Water Mist with Modified Inorganic Salt on Lpg Explosion: Experimental Tests and Simulations

Number of pages: 29 Posted: 26 Jun 2025
Henan Polytechnic University, Henan Polytechnic University, National University of Singapore (NUS), Henan Polytechnic University, Henan Polytechnic University, Henan Polytechnic University and Henan Polytechnic University
Downloads 15 (1,509,872)

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LPG explosion, CO2-water mist, inorganic salt, Surfactant, suppression mechanism

9.

Effects of injection strategies on combustion and emissions characteristics of a lean-combustion methanol engine

Number of pages: 32 Posted: 28 Mar 2026
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, National University of Singapore (NUS) and Tianjin University
Downloads 14 (1,518,554)

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Methanol engine, Injection strategies, Emissions, Lean-combustion

10.

Effects of the hydrogen injection strategies and spark timing in pre-chamber on the combustion and emissions of pure ammonia engine

Number of pages: 28 Posted: 28 Apr 2026
affiliation not provided to SSRN, National University of Singapore (NUS), Shenyang Aerospace University, Tianjin University and Tianjin University
Downloads 12 (1,548,648)

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Pre-chamber, Hydrogen turbulent jet ignition, Ammonia engine, Hydrogen injection mass

11.

Debt Structure and the Allocation of Recoveries in Default

Number of pages: 55
Lei Zhou, Ying Chen and Katsuki Fujisawa
National University of Singapore (NUS), National University of Singapore (NUS) - Department of Mathematics and Institute of Science Tokyo
Downloads 0

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Debt Structure, Recovery Rates, Credit Risk, Seniority, Priority Structure