Ji Lu

China University of Petroleum, Beijing

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Ming Xing Lin

Shandong University

Hock Soon Seah

Nanyang Technological University

Xinjie Zhao

China Agricultural University

Zhuowei Wang

China Institute of Water Resources and Hydropower Research

Zheng Wang

Southern University of Science and Technology

Xu Zuo

Nankai University

Xinghua Wu

Mongolian National University

Fang Lan

Sichuan University

Ibrahim Ayoub

Universidad Nacional de Córdoba

Song Li

Wuhan Institute of Technology

Cooperative Institutions

Chinese Academy of Sciences

China Institute of Water Resources and Hydropower Research

Nankai University

Tongji University

China University of Geosciences (Beijing)

Harbin Institute of Technology

China Three Gorges Corporation (China)

Sichuan University

Southwest Petroleum University

University of Oklahoma

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An experimental study of the effect of splitter plates on vortex-induced vibration

Ibrahim Ayoub Ji Lu B. Sushanta Dutta Kenneth Elliot Brad Stappenbelt

Splitter

Splitter plate

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Inductance of Long Intrinsic Josephson Junction Arrays Composed of Misaligned Tl ₂ Ba ₂ CaCu ₂ O ₈ Thin Films

Chinese Physics Letters (2006)

Tiege Zhou Yan Shao-lin Fang Lan Xu Zuo Song Li

We observe and measure the inductance of long intrinsic Josephson junction arrays composed of misaligned Tl2Ba2CaCu2O8 thin films grown on LaAlO3 substrates. The array consists of about 9.1×103 intrinsic Josephson junctions, where 90° phase shift between ac voltage across the array and ac current flowing through has been measured. Furthermore, the voltage is proportional to the frequency of the current. The measured inductance values of the intrinsic Josephson junction arrays are basically consistent with the theoretically calculated results, confirming that the inductance is mainly due to the Josephson effect. The dependence of the array inductance on its critical current is also discussed.

Kinetic inductance

10.1088/0256-307x/23/7/077

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Citations (3)

A DIFFERENT UNDERSTANDING ON SWEEP

Journal of Engineering Thermophysics (2005)

Ji Lu

Stall (fluid mechanics)

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INVESTIGATIONS ABOUT THE HOT STREAK IN THE COUNTER-ROTATING TURBINE

Journal of Engineering Thermophysics (2001)

Ji Lu

Streak

Streak camera

Solver

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BASIC ANALYSIS ON 1+3/2 AND 1+1/2 COUNTERROTATING TURBINES

Ji Lu

Gear ratio

Overall pressure ratio

Tip-speed ratio

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Impact of Cascade Reservoir on the Sources of Organic Matter in Sediments of Lancang River

iScience (2024)

Yufei Bao Meng Sun Yuchun Wang Ji Lu Yajie Wu

The construction of dams to intercept natural rivers constitutes the most severe human activity influencing the underlying surface. This study focuses on four cascade reservoirs of the Lancang River and explores their impact on the migration of organic matter in sediments. The research reveals significant spatial variations in total organic carbon (TOC) and total nitrogen concentrations in the sediments of the four reservoirs. The carbon and nitrogen isotopes indicate that terrigenous organic matter is the main source of TOC in the sediments, contributing an average of 66.80%. Endogenous algal-derived organic matter is the second significant source, contributing between 14.30% and 32.91%. The sources contributed from upstream organic matter are the lowest, ranging from 6.36% to 15.33%. Our study demonstrates that the construction of cascade reservoirs may significantly alter the processes of material sources in the river basin ecosystem, particularly in the large reservoir which increased more endogenous algal-derived organic matter.

10.1016/j.isci.2024.111681

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NUMERICAL INVESTIGATIONS ABOUT THE INFLUENCE OF CHANGING STATOR SOLIDITY ON STEAM TURBINE STAGE PERFORMANCE

Ji Lu

Solidity

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INVESTIGATION ABOUT THE EFFECTS OF AXIAL GAPS ON CLOCKING EFFECTS

Journal of Engineering Thermophysics (2004)

Ji Lu

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PARAMETER OPTIMIZATION OF DARRIEUS VERTICALAXIS WIND TURBINE

Journal of Engineering Thermophysics (2006)

Ji Lu

Solidity

Tip-speed ratio

Versa

Position (finance)

Maximum power principle

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Energy-Based Fracture Network Reconstruction of Shale Gas Reservoir

Day 3 Wed, November 17, 2021 (2023)

Ji Lu Botao Lin

Abstract Microseismic monitoring is a commonly used technique in characterizing hydraulic fractures. However, fracture network reconstruction remains challenging due to the heterogeneity and complex stress field of shale gas reservoirs. An Energy-based 3D Fracture Reconstruction method (EFR3D) is proposed to derive the complex fracture network from microseismic data in a shale gas reservoir. The EFR3D method mainly combines the Propose Expand and Re-Estimate Labels algorithm (PEARL), the Density-Based Spatial Clustering of Applications with Noise algorithm (DBSCAN), and the Alpha-shape algorithm to detect the fracture orientation and fracture shape. This method formulates fracture orientation detection as an energy minimization task to improve reconstruction accuracy. The effectiveness of the proposed method was evaluated by performing a verification procedure against different fracture numbers, fracture orientations, and fracture scales using the Monte Carlo simulation. The results show that the proposed method has good adaptability and high accuracy in various fracture configurations. Furthermore, a field application of six horizontal wells located in the southern Sichuan basin, southwest China, was conducted to illustrate the robustness and practicability of the proposed method. The proposed method can serve as a practical and reliable approach to characterize hydraulic fractures.

Microseism

Stress field

10.2118/217311-ms

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