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56. Moire Superlattice Modulations in Single-Unit-Cell FeTe Films Grown on NbSe2 Single Crystals

Author

Deng, Han-Bin, Li, Yuan, Feng, Zili, Guan, Jian-Yu, Yu1, Xin, Huang, Xiong, Liu, Rui-Zhe, Zhu, Chang-Jiang, Liu, Limin, Sun, Ying-Kai, Peng, Xi-liang, Li, Shuai-Shuai, Du, Xin, Wang, Zheng, Wu, Rui, Yin, Jia-Xin, Shi, You-Guo, and Mao, Han-Qing

Subjects
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Superconductivity
Abstract

Interface can be a fertile ground for exotic quantum states, including topological superconductivity, Majorana mode, fractal quantum Hall effect, unconventional superconductivity, Mott insulator, etc. Here we grow single-unit-cell (1UC) FeTe film on NbSe2 single crystal by molecular beam epitaxy (MBE) and investigate the film in-situ with home-made cryogenic scanning tunneling microscopy (STM) and non-contact atomic force microscopy (AFM) combined system. We find different stripe-like superlattice modulations on grown FeTe film with different misorientation angles with respect to NbSe2 substrate. We show that these stripe-like superlattice modulations can be understood as moire pattern forming between FeTe film and NbSe2 substrate. Our results indicate that the interface between FeTe and NbSe2 is atomically sharp. By STM-AFM combined measurement, we suggest the moire superlattice modulations have an electronic origin when the misorientation angle is relatively small (<= 3 degree) and have structural relaxation when the misorientation angle is relatively large (>= 10 degree)., Comment: 10 pages, 4 figures

Published
2021
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57. Direct Observation of the Scale Relation between Density of States and Pairing Gap in a Dirty Superconductor

Author

Zhu, Chang-Jiang, Liu, Limin, Song, Peng-Bo, Deng, Han-Bin, Yi, Chang-Jiang, Sun, Ying-Kai, Wu, R., Yin, Jia-Xin, Shi, Youguo, Wang, Ziqiang, and Pan, Shuheng H.

Subjects
Condensed Matter - Superconductivity
Abstract

Theories and experiments on dirty superconductors are sophisticated but important for both fundamentals and applications. It becomes more challenging when magnetic fields are present, because the field distribution, the electron density of states, and the superconducting pairing potentials are nonuniform. Here we present tunneling microspectroscopic experiments on NbC single crystals and show that NbC is a homogeneous dirty superconductor. When applying magnetic fields to the sample, we observe that the zero-energy local density of states and the pairing energy gap follow an explicit scale relation proposed by de Gennes for homogeneous dirty superconductors in high magnetic fields. Surprisingly, our experimental findings suggest that the validity of the scale relation extends to magnetic field strengths far below the upper critical field and call for new nonperturbative understanding of this fundamental property in dirty superconductors. On the practical side, we use the observed scale relation to drive a simple and straightforward experimental scheme for extracting the superconducting coherence length of a dirty superconductor in magnetic fields.

Published
2021
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69. Research on the core ability cultivation mechanism of college students returning to their hometowns for innovation and entrepreneurship under the strategy of rural revitalization

Author

Liu Limin and Liu Jieshu

Subjects
logistic regression model, structural equation modeling, goodness-of-fit test, innovative entrepreneurial ability, 16-02, Mathematics, QA1-939
Abstract

This study explores the innovation and entrepreneurship capabilities of college students who return to their hometowns, particularly within China’s rural revitalization strategy. By constructing a comprehensive framework, this paper examines four key dimensions that influence these abilities, employing logistic regression analysis to assess the impact of various factors. Notably, including policy support as a variable in Model 2 significantly enhances the Model’s explanatory power by 22.4%, a statistically significant finding (p < 0.001). This underscores the critical role of policy support in bolstering students’ innovation and entrepreneurial skills. Further, through applying structural equation modeling, this research delves deeper into the nexus between policy, institutional environments, and the cultivation of core entrepreneurial competencies, offering insights into the external factors that facilitate competence development. The Model’s hypotheses are rigorously tested for fit, confirming the effectiveness of the proposed framework in understanding and supporting the entrepreneurial endeavors of returning college students.

Published
2024
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70. Thermal dynamics of charge density wave pinning in ZrTe3

Author

Liu, Limin, Zhu, Changjiang, Liu, Z. Y., Deng, Hanbin, Zhou, X. B., Li, Yuan, Sun, Yingkai, Huang, Xiong, Li, Shuaishuai, Du, Xin, Wang, Zheng, Guan, Tong, Mao, Hanqing, Sui, Y., Wu, Rui, Yin, Jia-Xin, Cheng, J. -G., and Pan, Shuheng H.

Subjects
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science
Abstract

Impurity pinning has long been discussed to have a profound effect on the dynamics of an incommensurate charge density wave (CDW), which would otherwise slide through the lattice without resistance. Here we visualize the impurity pinning evolution of the CDW in ZrTe3 using the variable temperature scanning tunneling microscopy (STM). At low temperatures, we observe a quasi-1D incommensurate CDW modulation moderately correlated to the impurity positions, indicating a weak impurity pinning. As we raise the sample temperature, the CDW modulation gets progressively weakened and distorted, while the correlation with the impurities becomes stronger. Above the CDW transition temperature, short-range modulations persist with the phase almost all pinned by impurities. The evolution from weak to strong impurity pinning through the CDW transition can be understood as a result of losing phase rigidity.

Published
2021
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71. Edge Learning-Based Efficient Data Imputation of Water Quality

Author

Wang, Yongsheng, Chen, Zhen, Liu, Limin, Gao, Jing, Liu, Guangwen, Xu, Zhiwei, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, S. Shmaliy, Yuriy, editor, and Nayyar, Anand, editor

Published
2023
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72. Review of Water Quality Prediction Methods

Author

Chen, Zhen, Liu, Limin, Wang, Yongsheng, Gao, Jing, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, and Weng, Chih-Huang, editor

Published
2023
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73. Research on Environmental Monitoring and Prediction Method of Orchard Frost Based on Wireless Sensor Network

Author

Ding, Hao, Liu, Limin, Liang, Zhao, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Yan, Liang, editor, and Deng, Yimin, editor

Published
2023
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74. Intelligent Control Strategy of Wind Curtain Type Anti-drift Sprayer Based on LSSVM Wind Speed Prediction and Fuzzy Control

Author

Liang, Zhao, Liu, Limin, Ding, Hao, Wang, Guangming, Feng, Bin, Wang, Shubo, Zhang, Guofeng, Li, Jitao, Xu, Tao, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Yan, Liang, editor, and Deng, Yimin, editor

Published
2023
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75. Study and Experiment on the Effect of Fruit Trees’ Volume by Different Travel Direction and LiDAR Installation Height

Author

Liu, Limin, Liu, Ziyan, Han, Hu, Zhong, Yuan, Wang, Shubo, Gao, Haisong, Liang, Zhao, He, Xiongkui, Liu, Yajia, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Yan, Liang, editor, and Deng, Yimin, editor

Published
2023
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87. ADH5-mediated NO bioactivity maintains metabolic homeostasis in brown adipose tissue

Author

Sebag, Sara C, Zhang, Zeyuan, Qian, Qingwen, Li, Mark, Zhu, Zhiyong, Harata, Mikako, Li, Wenxian, Zingman, Leonid V, Liu, Limin, Lira, Vitor A, Potthoff, Matthew J, Bartelt, Alexander, and Yang, Ling

Subjects
Biochemistry and Cell Biology, Biological Sciences, Nutrition, Obesity, Aetiology, 2.1 Biological and endogenous factors, Cardiovascular, Metabolic and endocrine, Adipose Tissue, Brown, Alcohol Dehydrogenase, Animals, Diet, HEK293 Cells, Homeostasis, Humans, Mice, Mice, Inbred C57BL, Mice, Knockout, Mice, Obese, Nitric Oxide, Oxidation-Reduction, Reactive Oxygen Species, Thermogenesis, Uncoupling Protein 1, ADH5, BAT, HSF1, alcohol dehydrogenase 5, brown adipose tissue, heat shock factor 1, nitrosative stress, obesity, Medical Physiology, Biological sciences
Abstract

Brown adipose tissue (BAT) thermogenic activity is tightly regulated by cellular redox status, but the underlying molecular mechanisms are incompletely understood. Protein S-nitrosylation, the nitric-oxide-mediated cysteine thiol protein modification, plays important roles in cellular redox regulation. Here we show that diet-induced obesity (DIO) and acute cold exposure elevate BAT protein S-nitrosylation, including UCP1. This thermogenic-induced nitric oxide bioactivity is regulated by S-nitrosoglutathione reductase (GSNOR; alcohol dehydrogenase 5 [ADH5]), a denitrosylase that balances the intracellular nitroso-redox status. Loss of ADH5 in BAT impairs cold-induced UCP1-dependent thermogenesis and worsens obesity-associated metabolic dysfunction. Mechanistically, we demonstrate that Adh5 expression is induced by the transcription factor heat shock factor 1 (HSF1), and administration of an HSF1 activator to BAT of DIO mice increases Adh5 expression and significantly improves UCP1-mediated respiration. Together, these data indicate that ADH5 controls BAT nitroso-redox homeostasis to regulate adipose thermogenesis, which may be therapeutically targeted to improve metabolic health.

Published
2021

88. Development and analysis of passive residual heat-removal system on secondary side of small reactor

Author

DONG Botong, XIAO Yao, LI Junlong, XU Ziyi, LIU Maolong, LIU Limin, FU Junsen, and GU Hanyang

Subjects
small reactor, natural circulation, passive, residual heat-removal system, relap5, Nuclear engineering. Atomic power, TK9001-9401
Abstract

BackgroundPassive residual heat-removal system (PRHRS) based on natural circulation has been widely used in small reactors connected on secondary side loop.PurposeThis study aims to develop and analyze a passive residual heat-removal system on the secondary side of a small reactor to improve reactor safety.MethodsBased on the completed heat-transfer experiment of the intermediate circuit of a small integrated nuclear power plant, Reactor Excursion and Leak Analysis Program (RELAP) was employed to determine and analyze the natural circulation characteristics of the intermediate loop were determined and analyzed.ResultsThe heat transfer rate results of the program are in good agreement with the experimental data, and the natural cycle characteristics of PRHRS can be characterized. The pressure of the system loop is determined by the average temperature of the primary side of the steam generator (SG), and the difference in the inlet temperature of the SG primary side, mass flow rate, and height of the cooling and heating sources significantly influence the heat-transfer performance of the SG system. The heat-transfer performance of the waste-heat-removal system is more sensitive to the resistance of the system loop when the temperature of the primary-side inlet of the SG is higher.ConclusionsThese results provide a valuable application for further investigations of passive systems in small reactors.

Published
2024
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96. Role of anion in the pairing interaction of iron-based superconductivity

Author

Yin, J. -X., Zhao, Y. Y., Wu, Zheng, Wu, X. X., Kreisel, A., Andersen, B. M., Macam, Gennevieve, Zhou, Sen, Wu, Rui, Liu, Limin, Deng, Hanbin, Zhu, Changjiang, Li, Yuan, Sun, Yingkai, Huang, Zhi-Quan, Chuang, Feng-Chuan, Lin, Hsin, Ting, C. -S., Hu, J. -P., Wang, Z. Q., Dai, P. C., Ding, H., and Pan, S. H.

Subjects
Condensed Matter - Superconductivity, Condensed Matter - Materials Science
Abstract

High-temperature iron-based superconductivity develops in a structure with unusual lattice-orbital geometry, based on a planar layer of Fe atoms with 3d orbitals and tetrahedrally coordinated by anions. Here we elucidate the electronic role of anions in the iron-based superconductors utilizing state-of-the-art scanning tunneling microscopy. By measuring the local electronic structure, we find that As anion in Ba0.4K0.6Fe2As2 has a striking impact on the electron pairing. The superconducting electronic feature can be switched off/on by removing/restoring As atoms on Fe layer at the atomic scale. Our analysis shows that this remarkable atomic switch effect is related to the geometrical cooperation between anion mediated hopping and unconventional pairing interaction. Our results uncover that the local Fe-anion coupling is fundamental for the pairing interaction of iron-based superconductivity, and promise the potential of bottom-up engineering of electron pairing.

Published
2020

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