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Data-driven facial animation based on manifold Bayesian regression

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第4期7卷 556-563页

作者： WANG Yu-shun zhuang yue-ting WU Fei School of Computer Science and Technology Zhejiang University Hangzhou 310027 China The Microsoft State Education Ministry Key Laboratory Zhejiang University Hangzhou 310027 China

Driving facial animation based on tens of tracked markers is a challenging task due to the complex topology and to the non-rigid nature of human faces. We propose a solution named manifold Bayesian regression. First a novel distance metric, the geodesic manifold distance, is introduced to replace the Euclidean distance. The problem of facial animation can be formulated as a sparse warping kernels regression problem, in which the geodesic manifold distance is used for modelling the topology and discontinuities of the face models. The geodesic manifold distance can be adopted in traditional regression methods, e.g. radial basis functions without much tuning. We put facial animation into the framework of Bayesian regression. Bayesian approaches provide an elegant way of dealing with noise and uncertainty. After the covariance matrix is properly modulated, Hybrid Monte Carlo is used to approximate the integration of probabilities and get deformation results. The experimental results showed that our algorithm can robustly produce facial animation with large motions and complex face models.

关键词： Facial animation Manifold Geodesic distance Bayesian regression

Angular Momentum Josephson Effect between Two Isolated Condensates

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Chinese Physics Letters 2021年第6期38卷 1-6页

作者： Wei-Feng zhuang yue-Xin Huang Ming Gong CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China

We demonstrate that the two degenerate energy levels in spin–orbit coupled trapped Bose gases,coupled by a quenched Zeeman field,can be used for angular momentum Josephson *** a static quenched field,we can realize a Josephson oscillation with a period ranging from millisecond to hundreds of ***,by a driven Zeeman field,we realize a new Josephson oscillation,in which the population imbalance may have the same expression as the current in the direct-current Josephson *** the dynamics of the condensate cannot follow up the modulation frequency,it is in the self-trapping *** new dynamic is understood from the time-dependent evolution of the constant-energy trajectory in the phase *** model has several salient advantages compared to the previous *** condensates are isolated from their excitations by a finite gap,thus can greatly suppress the damping effect induced by thermal atoms and Bogoliubov *** oscillation period can be tuned by several orders of magnitude without influencing other *** experiments,the dynamics can be mapped out from spin and momentum spaces,thus it is not limited by the spatial resolution in absorption *** system can serve as a promising platform for matter wave interferometry and quantum metrology.

关键词： Josephson oscillation momentum

High-dose dexamethasone regulates microglial polarization via the GR/JAK1/STAT3 signaling pathway after traumatic brain injury

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Neural Regeneration Research 2025年第9期20卷 2611-2623页

作者： Mengshi Yang Miao Bai Yuan zhuang Shenghua Lu Qianqian Ge Hao Li Yu Deng Hongbin Wu Xiaojian Xu Fei Niu Xinlong Dong Bin Zhang Baiyun Liu Beijing Tiantan Hospital Capital Medical UniversityBeijingChina Department of Neurology The First Hospital of Tsinghua UniversityBeijingChina Department of Neurotrauma and Beijing Key Laboratory of Central Nervous System Injury Beijing Neurosurgical InstituteCapital Medical UniversityBeijingChina Department of Critical Care Medicine Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Center for Nerve Injury and Repair Beijing Institute of Brain DisordersChina National Clinical Research Center for Neurological DiseasesBeijingChina

Although microglial polarization and neuroinflammation are crucial cellular responses after traumatic brain injury,the fundamental regulatory and functional mechanisms remain insufficiently *** potent anti-inflammato ry agents,the use of glucoco rticoids in traumatic brain injury is still controversial,and their regulatory effects on microglial polarization are not yet *** the present study,we sought to determine whether exacerbation of traumatic brain injury caused by high-dose dexamethasone is related to its regulatory effects on microglial polarization and its mechanisms of *** vitro cultured BV2 cells and primary microglia and a controlled cortical impact mouse model were used to investigate the effects of dexamethasone on microglial ***,dexamethasone,RU486(a glucocorticoid receptor antagonist),and ruxolitinib(a Janus kinase 1 antagonist)were ***-sequencing data obtained from a C57BL/6 mouse model of traumatic brain injury were used to identify potential targets of *** Morris water maze,quantitative reverse transcription-polymerase chain reaction,western blotting,immunofluorescence and confocal microscopy analysis,and TUNEL,Nissl,and Golgi staining were performed to investigate our ***-throughput sequencing results showed that arginase 1,a marker of M2 microglia,was significantly downregulated in the dexamethasone group compared with the traumatic brain injury group at3 days post-traumatic brain *** dexamethasone inhibited M1 and M2 microglia,with a more pronounced inhibitory effect on M2microglia in vitro and in *** receptor plays an indispensable role in microglial polarization after dexamethasone treatment following traumatic brain ***,glucocorticoid receptor activation increased the number of apoptotic cells and neuronal death,and also decreased the density of dendritic spines.A possible downstream receptor signaling mechanism is th

关键词： apoptosis BV2 microglia dexamethasone glucocorticoid receptor glucocorticoids innate immune system microglial polarization neuroinflammation primary microglia traumatic brain injury

Halide perovskite-based heterostructures for photocatalytic CO_(2)conversion

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Rare Metals 2024年第11期43卷 5453-5472页

作者： yue-Mei Li zhuang-zhuang Hou Xiao-Dong Wan Jia Liu Jia-Tao Zhang School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Beijing Institute of Radio Measurement Beijing 100854China School of Chemistry and Chemical Engineering Beijing Institute of TechnologyBeijing 100081China

Photocatalytic conversion of solar light into chemical fuels represents an appealing pathway by which a sustainable energy future might be ***,great scientific challenges need to be addressed for developing this technology,such as finding a way to acquire highly efficient semiconductor photocatalytic ***,halide perovskites have emerged as a novel class of semiconductors that display several exceptional advantages,including a large absorption coefficient,high carrier mobility,as well as customizable tunability of band gap,composition,structures,and *** development of photocatalysts solely based on pure halide perovskites encounters significant hurdles due to their intrinsically low stability and activity.A promising strategy to overcome this problem involves the construction of perovskite-based *** integration with other components can enhance light absorption capacity,promote the separation of photogenerated carriers,and augment the number of surface reactive *** this review,we briefly summarize recent advances in the construction of perovskite-based photocatalytic heterostructures,where the perovskites serve either as the matrix or as a decoration ***,the research accomplishments in employing these heterostructures for photocatalytic CO_(2)reduction are ***,the major obstacles and the great potential for future design of perovskite-based heterostructures toward the creation of competitive CO_(2)conversion photocatalysts are proposed.

关键词： Halide perovskite Heterostructures Photocatalysis CO_(2)reduction

Phronesis and Dao： Cultivating Ethics and Wisdom in the Process of Making Architecture

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Fudan Journal of the Humanities and Social Sciences 2016年第2期9卷 213-228页

作者： Leonidas Koutsoumpos yue zhuang School of Architecture National Technical University of Athens Patision 42 10682 AthensGreece Department of Modern Languages University of Exeter Queen's Building Exeter EX4 4QHUK

Contemporary China, the largest construction site in the world, is the centre of production of architectural ＇vessels＇ that are compacted with technical and scientific knowledge. Nevertheless, traditional wisdom and personal cultivation is often neglected in this process of creating architecture. This paper makes a connection between the Chinese ideogram of 道（dao = way）, with the Greek term of φρovησιc （phronesis = practical wisdom）, in the context of architecture. We argue that both terms bring forth the importance of ethics and practical wisdom in the making of architecture, as a process of cultivation. This argument is discussed through two case studies： a historical Chinese garden （Sima Guang＇s ＇Garden of Solitary Enjoyment＇）, as a manifestation of Dao, and an educational situation from a contemporary architectural design studio in a school of architecture, as a manifestation of phronesis. Both these diverse examples offer a possibility to see architecture as the creation of ＇vessels for life＇ where ＇vessel＇ and ＇life＇ are inseparable.

关键词： Ethics - Wisdom Phronesis Dao Cultivation 'Vessels for life'Chinese gardens Architectural design education

Factors Affecting the Catalytic Performance of Nano-catalysts

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Chinese Journal of Chemistry 2022年第4期40卷 515-523页

作者： Hongling Yang yue Wu Zewen zhuang Yang Li Chen Chen Department of Chemistry Tsinghua UniversityBeijing 100084China

Comprehensive Summary Nano-catalysis plays a vital role in the industrially chemical *** increasingly severe energy crisis and environmental issues spur scientists to exploit novel nano-catalysts in diverse *** is essential to understand the fundamental physicochemical properties of nano-catalysts to develop efficient systems,whose design can be subsequently precisely tuned at the atomic *** this review,we summarize several key factors affecting the catalytic activity of nano-catalysts,including structure,composition,size,and interface,providing guidance for the atomic level control of high-efficient ***,we present a brief conclusion and some thoughts on nano-catalysis.

关键词： Heterogeneous catalysis Nano-catalysis Single-atom catalysis Structure-activity relationships Interfaces

Microcapsule-enabled self-healing concrete:A bibliometric analysis

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Frontiers of Structural and Civil Engineering 2023年第11期17卷 1611-1629页

作者： Shuai ZHOU zijian LI Kai LI yue JIA Chong WANG Xiaoying zhuang College of Materials Science and Engineering Chongqing UniversityChongqing 400045China Department of Mathematics and Physics Leibniz Universität HannoverHannover 30167Germany Department of Geotechnical Engineering College of Civil EngineeringTongji UniversityShanghai 200092China

With the development of self-healing technology, the overall properties of the microcapsule-enabled selfhealingconcrete have taken a giant leap. In this research, a detailed assessment of current research on the microcapsuleenabledself-healing concrete is conducted, together with bibliometric analysis. In the bibliometric analysis, variousindicators are considered. The current state of progress regarding self-healing concrete is assessed, and an analysis of thetemporal distribution of documents, organizations and countries of literature is conducted. Later, a discussion of thecitations is analyzed. The research summarizes the improvements of microcapsule-enabled self-healing cementitiouscomposites and provides a concise background overview.

关键词： microcapsule self-healing concrete bibliographic analysis

Experimental investigation of tubing collar's influence on hydrodynamic behavior of annular duct flow

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Petroleum Science 2022年第5期19卷 2326-2342页

作者： Yi-Su Zhou Zhong-Wei Huang zhuang-zhuang Zhang Tian-Wen Jiang Rui-yue Yang Ming-He Zhang State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum ChangpingBeijing 102249China China University of Petroleum(Beijing) ChangpingBeijing 102249China

Tubing collars’influence on hydrodynamic behavior of annular duct flow has been investigated using Particle Image Velocity(PIV)*** has become an efficient method for complex transient flows visualization.A water flow loop with two replaceable variable cross-sections(VCS),75-90 mm and 90-110 mm,in a 129 mm inner diameter(ID)pipe was *** whole field of the variable cross-section annulus(VCSA)was visualized,including forward-facing step(FFS),narrow annulus(NA),and backwardfacing step(BFS)*** VCSA ratio and Reynolds(Re)number influence on streamline distribution,velocity distribution,and turbulence intensity were *** showed that the recirculation is easier to form in BFS than FFS flow under the same *** VCSA ratio affects the formation of recirculation zones and the location of the reattachment *** number mainly affects BFS flow by influencing the main velocity component-axial *** turbulence intensity is relatively high in BFS than FFS flow and is larger at y/h>1.0 than y/h<***,the streamwise cohere nt structures reveal that the first two modes are predominant and represent the main characteristics of the flow by proper orthogonal decomposition(POD)method.

关键词： Variable cross-section annulus flow Sudden contraction and expansion Hydrodynamic behavior PIV POD

An Intramolecular Charge Transfer and Aggregation Induced Emission Enhancement Fluorescent Probe Based on 2-Phenyl-1,2,3-triazole for Highly Selective and Sensitive Detection of Homocysteine and Its Application in Living Cells

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Chinese Journal of Chemistry 2019年第12期37卷 1216-1222页

作者： Yicheng Chu Zhengfeng Xie Daijiao zhuang Yongshuang yue Yuhua yue Wei Shi Shun Feng Oil&Gas Field Applied Chemistry Key Laboratory of Sichuan Province College of Chemistry and Chemical EngineeringSouthwest Petroleum University8 Xindu RoadXinduChengduSichuan 610500China School of Life Science and Engineering Southwest Jiaotong UniversityChengduSichuan 610031China

Summary of main observation and con elusion In this work,a new simple and readily synthesized turn-on probe 2-(4-anthracene-9-yl-phenyl)-2H-[l,2,3]triazole-4-carbaldehyde(APTC)was legitimately designed towards homocysteine(Hcy).Moreover,APTC has excellent optical properties such as intramolecular charge transfer(ICT)and aggregation induced emission enhancement(AIEE)characteristics,indicating its extensive application ***'s more,APTC displayed rapid,high selectivity and specificity towards homocysteine over cysteine/*** detection limit of APTC for Hcy was as low as 2.198×10^-8 mol·L^-1,and the response time was only 5 *** has been successfully applied to detect Hcy in silica gel plates and living cells,which indicates that APTC has good stability and biocompatibility as a selective probe for ***,the mechanism was studied using 1H NMR titration experiments and mass spectrometry.

关键词： specificity Probe Highly