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Lu Liu [14]Lu-Lu Liu [3]Luyao Liu [1]Luo Liu [1]
Lulu Liu [1]Luoru Liu [1]Luping Liu [1]Lucan Liu [1]
  1.  37
    Robust Fractional-Order PID Controller Tuning Based on Bode’s Optimal Loop Shaping.Lu Liu & Shuo Zhang - 2018 - Complexity 2018:1-14.
    This paper presents a novel fractional-order PID controller tuning strategy based on Bode’s optimal loop shaping which is commonly used for LTI feedback systems. Firstly, the controller parameters are achieved based on flat phase property and Bode’s optimal reference model, so that the controlled system is robust to gain variations and can achieve desirable transient performance according to various control requirements. Then, robustness analysis of the controlled system is carried out to support the results. Furthermore, the parameter setting is analyzed (...)
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  2.  45
    Cognitive-Processing Bias in Chinese Student Teachers with Strong and Weak Professional Identity.Xin-Qiang Wang, Jun-Cheng Zhu, Lu Liu & Xiang-yu Chen - 2017 - Frontiers in Psychology 8.
  3. Effects of working memory load on uncertain decision-making: evidence from the Iowa Gambling Task.Ji-Fang Cui, Ya Wang, Hai-Song Shi, Lu-Lu Liu, Xing-Jie Chen & Ying-He Chen - 2015 - Frontiers in Psychology 6:122028.
    The Iowa Gambling Task (IGT) simulates uncertain gains and losses in real life situations and thus is a good measure of uncertain decision making. The role of working memory (WM) in IGT performance still remains unclear. The present study aimed to examine the effect of WM on IGT performance. Three groups of participants matched on gender ratio were randomly assigned to no WM load, low WM load, and high WM load conditions. Initially the three groups did not show significant difference (...)
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  4.  24
    Active Construction of Profession-Related Events: The Priming Effect among Pre-service Teachers with Different Professional Identity.Xin-Qiang Wang, Jun-Cheng Zhu, Lu Liu, Xiang-yu Chen & Jun-yu Huo - 2018 - Frontiers in Psychology 9.
  5.  88
    Extended-State-Observer-Based Collision-Free Guidance Law for Target Tracking of Autonomous Surface Vehicles with Unknown Target Dynamics.Shengnan Gao, Zhouhua Peng, Dan Wang & Lu Liu - 2018 - Complexity 2018:1-10.
    This paper is concerned with the target tracking problem of an autonomous surface vehicle in the presence of a maneuvering target. The velocity information of target is totally unknown to the follower vehicle, and only the relative distance and angle between the target and follower are obtained. First, a reduced-order extended state observer is used to estimate the unknown relative dynamics due to the unavailable velocity of the target. Based on the reduced-order extended state observer, an antidisturbance guidance law for (...)
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  6.  26
    Normalized Robust FOPID Controller Regulation Based on Small Gain Theorem.Shuo Zhang & Lu Liu - 2018 - Complexity 2018:1-10.
    In this paper, a normalized robust FOPID controller regulation algorithm is proposed. Only one parameter k is necessary to be tuned in the controller regulation process, so the proposed control algorithm is convenient to be applied on both fractional-order systems and integer-order systems. A robustness evaluation function is constructed based on the small gain theorem. Larger robustness evaluation function value will help the system achieve better robustness performance. Another parameter, β, is also available to serve as a tuning knob when (...)
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  7.  8
    Limit complexities, minimal descriptions, and N-randomness.Rodney Graham Downey, Lu Liu, Keng Meng Ng & Daniel Turetsky - forthcoming - Journal of Symbolic Logic:1-16.
    Let K denote prefix-free Kolmogorov complexity, and let $K^A$ denote it relative to an oracle A. We show that for any n, $K^{\emptyset ^{(n)}}$ is definable purely in terms of the unrelativized notion K. It was already known that 2-randomness is definable in terms of K (and plain complexity C) as those reals which infinitely often have maximal complexity. We can use our characterization to show that n-randomness is definable purely in terms of K. To do this we extend a (...)
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  8.  25
    Primitive recursive reverse mathematics.Nikolay Bazhenov, Marta Fiori-Carones, Lu Liu & Alexander Melnikov - 2024 - Annals of Pure and Applied Logic 175 (1):103354.
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  9.  65
    Chinese and Australians showed difference in mental time travel in emotion and content but not specificity.Xing-Jie Chen, Lu-Lu Liu, Ji-Fang Cui, Ya Wang, David H. K. Shum & Raymond C. K. Chan - 2015 - Frontiers in Psychology 6.
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  10.  16
    Carlson-Simpson's lemma and applications in reverse mathematics.Paul-Elliot Angles D'Auriac, Lu Liu, Bastien Mignoty & Ludovic Patey - 2023 - Annals of Pure and Applied Logic 174 (9):103287.
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  11.  20
    Experimental Study on the Effect of Urban Road Traffic Noise on Heart Rate Variability of Noise-Sensitive People.Chao Cai, Yanan Xu, Yan Wang, Qikun Wang & Lu Liu - 2022 - Frontiers in Psychology 12.
    Epidemiological studies have confirmed that long-term exposure to road traffic noise can cause cardiovascular diseases, and when noise exposure reaches a certain level, the risk of related CDs significantly increases. Currently, a large number of Chinese residents are exposed to high noise exposure, which could greatly increase the risk of cardiovascular disease. On the other hand, relevant studies have found that people with high noise sensitivity are more susceptible to noise. And it is necessary to pay more attention to the (...)
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  12.  47
    Mind wandering in schizophrenia: A thought-sampling study.Tao Chen, Xiao-Jing Qin, Ji-Fang Cui, Ying Li, Lu-lu Liu, Pengchong Wang, Shu-li Tao, David H. K. Shum, Ya Wang & Raymond C. K. Chan - 2019 - Consciousness and Cognition 74:102774.
  13.  11
    Effect of Age and Refractive Error on Local and Global Visual Perception in Chinese Children and Adolescents.Jiahe Gan, Ningli Wang, Shiming Li, Bo Wang, Mengtian Kang, Shifei Wei, Jiyuan Guo, Luoru Liu & He Li - 2022 - Frontiers in Human Neuroscience 16.
    PurposeThis study investigated the impact of age and myopia on visual form perception among Chinese school-age children.MethodsThis cross-sectional study included 1,074 students with a mean age of 12.1 ± 4.7 years. The mean spherical equivalence refraction of the participants was −1.45 ± 2.07 D. All participants underwent distance visual acuity, refraction measurement and local and global visual form perception test including orientation, parallelism, collinearity, holes and color discrimination tasks.ResultsThe reaction times of emmetropes were slower than those of myopic and high (...)
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  14.  61
    How Does Adult Attachment Affect Human Recognition of Love-related and Sex-related Stimuli: An ERP Study.Juan Hou, Xin Chen, Jinqun Liu, Fangshu Yao, Jiani Huang, Yamikani Ndasauka, Ru Ma, Yuting Zhang, Jing Lan, Lu Liu & Xiaoyi Fang - 2016 - Frontiers in Psychology 7.
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  15.  21
    Linking inter-individual differences in the perceptual load effect to spontaneous brain activity.Lu Liu, Jinfeng Tan & Antao Chen - 2015 - Frontiers in Human Neuroscience 9.
  16.  10
    The reverse mathematics of the thin set and erdős–moser theorems.Lu Liu & Ludovic Patey - 2022 - Journal of Symbolic Logic 87 (1):313-346.
    The thin set theorem for n-tuples and k colors states that every k-coloring of $[\mathbb {N}]^n$ admits an infinite set of integers H such that $[H]^n$ avoids at least one color. In this paper, we study the combinatorial weakness of the thin set theorem in reverse mathematics by proving neither $\operatorname {\mathrm {\sf {TS}}}^n_k$, nor the free set theorem imply the Erdős–Moser theorem whenever k is sufficiently large. Given a problem $\mathsf {P}$, a computable instance of $\mathsf {P}$ is universal (...)
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  17.  29
    Scale Effects of the Relationships between 3D Building Morphology and Urban Heat Island: A Case Study of Provincial Capital Cities of Mainland China.Zhi Qiao, Xiping Han, Chen Wu, Luo Liu, Xinliang Xu, Zongyao Sun, Wei Sun, Qian Cao & Linwan Li - 2020 - Complexity 2020:1-12.
    In the process of rapid urbanization, urban heat island effect has been showing more and more significant impacts on human well-being. Therefore, a more detailed understanding of the impact of three-dimensional building morphology on UHI effect across a continuum of spatial scales will be necessary to guide and improve the human settlement.This study selected 31 provincial capital cities of mainland China to analyze the impacts of the 3D building morphology, including the number, area, height, volume, and the surface area of (...)
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  18.  27
    Parent–Child Relationships and Resilience Among Chinese Adolescents: The Mediating Role of Self-Esteem.Lumei Tian, Lu Liu & Nan Shan - 2018 - Frontiers in Psychology 9:323904.
    The present study primarily aimed to examine whether self-esteem serves as a mediator in the associations between parent–child relationships, including parental support and parent–child conflict, and resilience among adolescents. Three hundred and four Chinese adolescents were surveyed with questionnaires and structural equation modeling was adopted to test the mediational hypothesis. The results indicated that the associations between parent–child relationships and adolescent resilience were primarily mediated by self-esteem and that parental support was more robustly linked with adolescent resilience than parent–adolescent conflict. (...)
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  19.  20
    Assessing Fine-Granularity Structural and Functional Connectivity in Children With Attention Deficit Hyperactivity Disorder.Peng Wang, Xi Jiang, Hanbo Chen, Shu Zhang, Xiang Li, Qingjiu Cao, Li Sun, Lu Liu, Binrang Yang & Yufeng Wang - 2020 - Frontiers in Human Neuroscience 14.
  20.  15
    The Mediating Role of Stress Perception in Pathways Linking Achievement Goal Orientation and Depression in Chinese Medical Students.Yan Wang, Luping Liu, Ning Ding, Honghe Li & Deliang Wen - 2021 - Frontiers in Psychology 12.
    Mental health problems are frequent obstacles in medical students’ careers as doctors. Given that previous studies overlook the mediation of stress perception, the current study expanded previous goal orientation researches by addressing an unexplored mechanism. This study aims to examine the mediational roles of stress perception on the relationship between achievement goal orientation and depression in medical students. A total of 1,015 Chinese 2-year medical students completed a multi-section questionnaire. Hypotheses were examined by structural equation modeling. The findings suggest that (...)
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  21.  12
    Exploring the antecedents of trust in electronic word-of-mouth platform: The perspective on gratification and positive emotion.Xuemei Xie & Luyao Liu - 2022 - Frontiers in Psychology 13.
    Frequent human-media interaction via the electronic word-of-mouth platform, trust is acknowledged as an ongoing challenge. This study aimed to understand users' trust in the e-wom platform based on uses and gratifications theory and stimulus-organism-response paradigm. Utilitarian gratification was regarded as stimulus, social gratification and positive emotion as organism, and platform trust as response. Data was acquired from 268 users in China using a questionnaire survey, and the PLS-SEM was used to further analyze the results. The results indicated that there is (...)
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