Lumin Li

Yunnan University of Traditional Chinese Medicine

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Lanyi Sun

China University of Petroleum, East China

Yuanyu Tian

China University of Petroleum, East China

Xianyong Shang

China University of Petroleum, East China

Shoutao Ma

China University of Petroleum, East China

Yuliang Liu

Henan University of Science and Technology

Jian Zhai

Shenyang Ligong University

Lianjie Guo

China University of Petroleum, East China

Changyong Xue

China University of Petroleum, East China

Na Yu

Hefei University

Wang Zhong

Qingdao Institute of Bioenergy and Bioprocess Technology

Cooperative Institutions

China University of Petroleum, East China

Colorado State University

China University of Petroleum, Beijing

Chinese Academy of Sciences

Yunnan University of Traditional Chinese Medicine

Sanming University

Guizhou University

Fujian Medical University

Shanghai Jiao Tong University

State Key Laboratory of Heavy Oil

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Theoretical Exploration of Observed V-B Transitions between Magnetron Discharge and Anode-Obstructed Hollow-Cathode Discharge Mode

Japanese Journal of Applied Physics (1993)

Binxing Shi Zengqi Yu Lumin Li George Collins George Collins

The transition between the magnetron discharge and the anode-obstructed hollow-cathode discharge modes has been theoretically explored using the Monte Carlo method. The calculated discharge voltage versus magnetic field ( V-B ) transition curves are in agreement with the experimentally measured bimodal V-B characteristics. The calculated discharge voltage in the obstructed hollow-cathode mode increases with increasing magnetic field up to a critical value, B c . Above this critical value the voltage required to sustain a discharge is dramatically lower and invariant to further increases in B . The latter behavior is characteristic of the well-known magnetron discharge mode. The B -field-induced variation of the sustaining voltage is judged to arise from a corresponding variation of the electron temperature of the plasma with applied magnetic field.

Cavity magnetron

10.1143/jjap.32.5099

Cite

Citations (0)

Reactive dividing wall column for hydrolysis of methyl acetate: Design and control

Chinese Journal of Chemical Engineering (2016)

Lumin Li Lanyi Sun Delian Yang Wang Zhong Yi Zhu

Reactive distillation

Methyl acetate

Reboiler

10.1016/j.cjche.2016.05.023

Cite

Citations (24)

酢酸ブチルの最適化と制御のための反応性精Liu隔の最適化と制御【JST・京大機械翻訳】

Huagong Xuebao (2016)

Chen Mengqi Yu Na Yuliang Liu Lumin Li Lanyi Sun

Source

Cite

Citations (0)

Multi-objective Optimization and Control of Self-Heat Recuperative Azeoropic Distillation for Separating an Ethanol/Water Mixture

ACS Omega (2022)

Lumin Li Na Yu Yi Zhu

Azeotropic distillation is an important method for the separation of an ethanol/water mixture, while the main disadvantage of azeotropic distillation is its high energy consumption. Since the self-heat recuperation technology can effectively recover and utilize the heat of effluent stream in thermal processes, it is introduced into the ethanol dehydration process. The conventional azeotropic distillation and self-heat recuperative azeotropic distillation (SHRAD) are simulated and optimized with multiple objectives. There exists a design point in the Pareto solution set for which the total annual cost is the lowest, the thermodynamic efficiency is the highest, and the CO2 emission is the least. Based on the specified design, the dynamic characteristics of the SHRAD configuration are studied, and two control structures are proposed. The improved control structure of the SHRAD process works well under the feed flowrate and composition disturbance, and the SHRAD system can obtain a high-purity ethanol product. The results show that the SHRAD process has significant advantages over conventional azeotropic distillation in terms of economic and environmental benefits. In addition, an effective control structure can ensure the stable operation of the SHRAD process.

Azeotropic distillation

Batch distillation

Extractive distillation

10.1021/acsomega.2c00478

Cite

Citations (6)

Low-Temperature Adaptive Dual-Network MXene Nanocomposite Hydrogel as Flexible Wearable Strain Sensors

Micromachines (2023)

Kai Chen Wenzhong Lai Wangchuan Xiao Lumin Li Shijun Huang

Flexible electronic devices and conductive materials can be used as wearable sensors to detect human motions. However, the existing hydrogels generally have problems of weak tensile capacity, insufficient durability, and being easy to freeze at low temperatures, which greatly affect their application in the field of wearable devices. In this paper, glycerol was partially replaced by water as the solvent, agar was thermally dissolved to initiate acrylamide polymerization, and MXene was used as a conductive filler and initiator promoter to form the double network MXene-PAM/Agar organic hydrogel. The presence of MXene makes the hydrogel produce more conductive paths and enforces the hydrogel's higher conductivity (1.02 S·m-1). The mechanical properties of hydrogels were enhanced by the double network structure, and the hydrogel had high stretchability (1300%). In addition, the hydrogel-based wearable strain sensor exhibited good sensitivity over a wide strain range (GF = 2.99, 0-200% strain). The strain sensor based on MXene-PAM/Agar hydrogel was capable of real-time monitoring of human movement signals such as fingers, wrists, arms, etc. and could maintain good working conditions even in cold environments (-26 °C). Hence, we are of the opinion that delving into this hydrogel holds the potential to broaden the scope of utilizing conductive hydrogels as flexible and wearable strain sensors, especially in chilly environments.

Strain (injury)

10.3390/mi14081563

Cite

Citations (10)

Biomimetic Total Synthesis of Horsfiequinone B Enabled by a Friedel-Crafts Alkylation-Type Non-homodimerization

Organic Chemistry Frontiers (2024)

Lumin Li Ruiling Liu Rui Yang Hanwei Li Ya Liu

The first and biomimetic total synthesis of horsfiequinone B was achieved in 13 steps.

Friedel–Crafts reaction

10.1039/d4qo00990h

Cite

Citations (0)

Modification of fluoropolymer surfaces with electronically conductive polymers

Synthetic Metals (1994)

Leon S. Van Dyke Charles J. Brumlik Wenbin Liang Junting Lei Charles R. Martin

Fluoropolymer

10.1016/0379-6779(94)90202-x

Cite

Citations (22)

Direct Patterning Of Polyimide By Pulsed Electron Beams In Soft Vacuum

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (1987)

Jayaram Krisinaswamy Lumin Li G. J. Collins Hiroyuki Hiraoka Mary Ann Caolo

We recently reported on a proximity, flood exposure process using pulsed electron beams.1 We showed replication of 0.5 um feature sizes from an electron transmitting stencil mask on to 3 um PMMA film via 28 KV pulsed electron beams produced in air and helium at 50 mTorr. In this paper, we describe the direct patterning of a commercial polyimide spin coated on a silicon wafer and cured at 100°C by exposure to 28 KV pulsed electron beams (current pulse duration 500 nsec, FWHM and 100 pulses) produced in 50 mTorr air and helium. The exposed region of polyimide cross-linked and the region covered by the 7 um line on the electron microscope grid used as stencil mask was unaffected. Patterning was completed by wet development in N-methylpyrolidone at 21°C for 15 secs. We present developed thickness vs exposure characteristics and SEM photographs of developed patterns.

Pulse duration

10.1117/12.940366

Cite

Citations (1)

Liquid–Liquid Extraction of Benzene Using Low Transition Temperature Mixtures: COSMO-SAC Predictions and Experiments

Journal of Chemical & Engineering Data (2018)

Shoutao Ma Xianyong Shang Jinfang Li Lumin Li Yinhai Sun

To screen suitable low transition temperature mixtures (LTTMs) as solvents for the extraction process of a benzene and cyclohexane mixture, the extraction performance of the LTTMs (25 hydrogen-bond donors (HBDs) and 13 hydrogen-bond acceptors (HBAs)) was assessed based on COSMO-SAC predictions of infinite dilution activity coefficients of benzene and cyclohexane in different LTTMs. The effects of the molar ratio of HBD to HBA on extraction efficiency were also observed in the meantime. It is found that the LTTM sulfolane-tetrabutylammonium bromide 5:1 (ST 5:1), which has excellent extraction performance, is the most promising solvent. To explain the difference of extraction efficiency of various LTTMs, σ-profiles were adopted to study the molecular interactions between LTTMs and benzene or cyclohexane. The analysis for geometry, interaction energy, independent gradient model (IGM) and atoms in molecules (AIM) was performed to explain interaction mechanisms between benzene/cyclohexane and HBD/HBA. Moreover, the liquid–liquid equilibrium (LLE) data of benzene–cyclohexane-ST 5:1 were experimentally measured, and the consistency tests were conducted using the Othmer–Tobias equation. In addition, the LLE data were employed to fit the binary interaction parameters of the NRTL activity coefficient model. In conclusion, the LTTM ST 5:1 shows good extraction performance, which provides a reference for the extractive separation of the benzene–cyclohexane mixture in industry.

COSMO-RS

10.1021/acs.jced.8b00768

Cite

Citations (15)

Comparison of different extractive distillation processes for 2-methoxyethanol/toluene separation: Design and control

Computers & Chemical Engineering (2017)

Lumin Li Lianjie Guo Yangqin Tu Na Yu Lanyi Sun

Extractive distillation

Separation process

Continuous distillation

10.1016/j.compchemeng.2017.01.025

Cite

Citations (77)