Xuping Li

Inner Mongolia University

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Mark Paster

Kyushu University

James F. Stubbins

University of Illinois Urbana-Champaign

Shengyin Ge

China Aerospace Science and Technology Corporation

Guangming Liu

Shenyang Institute of Automation

Zheng Shen

Fudan University

Guangyuan Yao

Chinese Research Academy of Environmental Sciences

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Hans Ågren

Uppsala University

Glib Baryshnikov

Linköping University

Ya Xu

Institute of Geology and Geophysics

Chao Deng

Xi’an University

Cooperative Institutions

Chinese Academy of Sciences

Chinese Research Academy of Environmental Sciences

University of Illinois Urbana-Champaign

China Aerospace Science and Technology Corporation

Fudan University

Kyushu University

Inner Mongolia University of Science and Technology

Beijing Municipal Ecology and Environment Bureau

Liaoning Technical University

Central South University

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The dynamics of electricity grid operation with increasing renewables and the path toward maximum renewable deployment

Renewable and Sustainable Energy Reviews (2015)

Xuping Li Mark Paster James F. Stubbins

10.1016/j.rser.2015.03.039

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Citations (22)

Research on leakage environmental risk assessment and risk prevention and control measures in the long-term landfill process of ultra-alkaline fly ash

Waste Management (2023)

Rongbin Xu Yuqiang Liu Xuping Li Guangyuan Yao Ya Xu

Hazard quotient

10.1016/j.wasman.2023.10.022

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Citations (7)

Long‐Term In Situ Performance Comparison of Si and GaAs Solar Arrays in Medium Earth Orbit

Energy Technology (2023)

Wenqi Zhao Guangming Liu Ning Yang Shengyin Ge Zheng Shen

The present work analyzes the long‐term in situ comparison of Si and GaAs solar array based on two BeiDou Navigation Satellite System satellites in medium Earth orbit (MEO). From the 6 year long‐term perspective, both Si and GaAs solar arrays exhibit significant yearly periodic variations in remote sensing current and temperature due to periodic variations in the Sun–satellite distance. The practical in situ photogenerated current degradation of Si and GaAs solar arrays in MEO orbits is analyzed by the light intensity and working temperature after calibrating. The annual degradation coefficients of Si and GaAs solar arrays are calculated to be 0.986 and 0.990, respectively, which means 13.2% and 9.6% current degradation for Si and GaAs solar arrays at the end of the 10 year life MEO satellite. Also, this article examines the temperature of the MEO orbit, with the working temperature ranging from −144.7 to 56.3 °C for Si solar array and −136.9 to 60.9 °C for GaAs solar array. The present work provides a critical accurate degradation parameter for the MEO satellite's precise design and the space application of the low‐cost silicon solar cell.

Degradation

10.1002/ente.202300634

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Citations (1)

Greenhouse Gas Emissions, Energy Efficiency, and Cost of Synthetic Fuel Production Using Electrochemical CO₂ Conversion and the Fischer–Tropsch Process

Energy & Fuels (2016)

Xuping Li Paul Anderson Huei-Ru Molly Jhong Mark Paster James F. Stubbins

This study seeks to explore whether electrochemical reduction of CO2 (using current US average and future low carbon electricity) will become a viable route for the reuse of CO2 for producing synthetic fuel. This paper presents the results of a technical and economic analysis conducted for a pathway that converts CO2 released from fossil fuel-burning power plants to diesel fuel via electrochemical reduction of CO2 to CO and the Fischer–Tropsch process. Currently achievable performance levels for CO2 electrolyzers and the Fischer–Tropsch process were used to compute key metrics, including (i) cost of the synthetic fuel, (ii) well-to-gate CO2 emissions, and (iii) overall energy efficiency. An engineering and economic model framework was developed for the investigation. The discounted cash flow analysis method was employed to calculate the cost of diesel fuel using a 500 MW power plant as the CO2 source. The model takes into account capital expenditures as well as operating costs for the reactors and auxiliaries. The final cost varies from 3.80 to 9.20 dollars per gallon in 2010 US dollars depending on the projected level of technology achieved. The WTG CO2 emissions vary from 180% (nearly twice) to a reduction of 75% compared to that of the business as usual scenario without carbon sequestration. The well-to-gate energy efficiency varies from 41 to 65%.

Fischer–Tropsch process

Capital cost

Synthetic fuel

Discounted cash flow

10.1021/acs.energyfuels.6b00665

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Citations (102)

A three-dimensional ratiometric sensing strategy on unimolecular fluorescence–thermally activated delayed fluorescence dual emission

Nature Communications (2019)

Xuping Li Glib Baryshnikov Chao Deng Xiaoyan Bao Bin Wu

Abstract Visualized sensing through fluorescence signals is a powerful method for chemical and physical detection. However, the utilization of fluorescent molecular probes still suffers from lack of precise signal self-calibration in practical use. Here we show that fluorescence and thermally activated delayed fluorescence can be simultaneously produced at the single-molecular level. The thermally activated delayed fluorescence serves as a sensing signal with its wavelength and lifetime both altered correlating to polarity, whereas the fluorescence always remains unchanged as an internal reference. Upon the establishment of a three-dimensional working curve upon the ratiometric wavelength and photoluminescence lifetime vs. polarity, disturbance factors during a relevant sensing process can be largely minimized by such a multiple self-calibration. This strategy was further applied into a precise detection of the microenvironmental polarity variation in complex phospholipid systems, towards providing new insights for convenient and accurate diagnosis of membrane lesions.

Polarity (international relations)

SIGNAL (programming language)

10.1038/s41467-019-08684-2

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Citations (106)

Roof breaking characteristics and mining pressure APPEARANCE laws in close distance COAL seams

Energy Exploration & Exploitation (2022)

Xuping Li Yanqing Liu Xiaopeng Ren Xiangye Wu Chenhong Zhou

In order to obtain lower coal seam mining of roof breaking characteristic and the law of mine pressure appearance in the close distance coal seams, this paper takes working face 6101 of a mine as the engineering background, and studies the roof breaking characteristics and pressure law in close distance coal seam through theoretical analysis, numerical simulation and engineering verification, which provides the basis for roof control in lower coal seam mining. The results show that the maximum failure depth of 4# coal seam mining on floor is 8.28 m. The lower coal seam mining roof forms a “loose-block” structure, and the main roof fracture step distance is 44.61 m. The UDEC simulation shows that the initial weighting intensity of 6# coal seam is large, and the first weighting distance step is about 40 m. The hydraulic support with the highest working resistance should be chosen based on the roof pressure analysis, and the weighting is frequent. The hydraulic support with higher working resistance should be selected through the analysis of roof pressure, some control measures should be taken to strengthen the organization and management, and prevent the occurrence of roof disasters. The roof is effectively controlled through engineering verification. The study further recognizes the laws of mining pressure appearance in lower coal seam of close distance coal seam, and provides experience for similar mine mining.

Longwall mining

10.1177/01445987221120888

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Citations (10)