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Journal of Harbin Institute of Technology(New Series) 2014年第4期21卷 84-90页

作者： ye-hao Song Jun-Jie Li Ning Zhu Jia-Liang Wang Zheng-hao Lin School of Architecture Tsinghua University Key Laboratory of Urban-Rural Eco Planning & Green Building Ministry of EducationTsinghua University

Since the research on verification to passive design strategies in sustainable building is at the initial stage,and its test method and verification conclusion are not scientific enough to validate,this paper proposes the necessity of building physical environmental monitoring to quantitative optimization of passive strategies efficiency from the perspective of architecture design and building environment. Adopting comparative research method,this research chooses six types of atrium space in cold climate in China as a prototype,focusing on building physical environmental performance difference in and between atrium and building main space. Spatial parameters of the atrium space will be divided into four factors: spatial geometry,interfacial properties,internal and external related categories. With subdividing these four factors into sub-factors,this paper makes crosscomparison among the sub-factors to clarify passive strategies effectiveness in atrium. Data comparison analysis shows that Winter atrium passive strategy in cold regions from traditional view is not obvious in practical application,and test data need to be stratified refined in atrium design in case of optimizing passive strategy from building prototype perspective.

关键词： atrium space building physical environment fieldwork test space effect

MULTI-SENSOR IMAGE REGISTRATION BASED ON GEOMETRIC AFFINE INVARIANT

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MULTI-SENSOR IMAGE REGISTRATION BASED ON GEOMETRIC AFFINE IN...

Research on Two Types of Buffer Zone Impact on Surrounding Office Space Environment in Winter in Cold Climate Zone—a Fieldwork in Architectural Design Institute Building of Tsinghua University,Beijing

第25届中国控制与决策会议

作者： Bin Li Huijuan Guo Boang Liu hao ye Tsinghua University China Nuclear Power Engineering Co. Ltd.

ISBN: (纸本)9781467355339

A new automatic feature-based registration algorithm of multi-sensor images with affine deformation is presented. The gray scale discrepancy between corresponding pixels and complex geometric deformation are two challenges in the problem of multi-sensor image registration, which make the design of robust feature descriptor very difficult. In the proposed method, the intersections of extracted line segments from both images are used as the feature points, due to their good robustness against gray scale discrepancy. In contrast to most existing feature-based methods that describe feature points directly, we first construct a new feature, named feature segment, based on the feature points, and then describe each feature segment with a descriptor. The additional procedure of feature segment construction enables us to introduce an algebraic affine invariant into the design of feature descriptor. By doing these, the proposed algorithm’s robustness to both affine deformation and gray scale discrepancy can be guaranteed. In addition, since the calculation of feature descriptors only involves simple algebraic operations, the proposed method has low computational load. Experimental results using real multi-sensor image pairs are presented to show the merits of the proposed method.

关键词： image registration affine invariant segment multi-sensor

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Journal of Harbin Institute of Technology(New Series) 2014年第5期21卷 33-39页

作者： ye-hao Song Jun-Jie Li Ning Zhu Jia-Liang Wang Shi-Meng hao School of Architecture Tsinghua University Key Laboratory of Eco Planning & Green Building Ministry of EducationTsinghua University

Building buffer zone space is not only one of essential approaches for better mental quality of interior building space, but also an important factor that may influence interior thermal comfort and energy consumption. This study aims to analyze regulative advantages of buffer zone to the surrounding functional spaces. Based on a fieldwork test in a typical office building in cold climate zone in Beijing,China,the monitor data show interior physical performance in the Winter. The research selects two types of different buffer zones in the same building. One is a south-faced greenhouse which has large dimension with plenty of vegetation,and the other is a simple atrium in the middle of five floor building with mount of skylights. The factors and their influence to surrounding functional spaces and the whole building are found out from the comparisons of collected data by floor to floor monitor test on both buffer zones at the same time. The comparisons of two types of buffer zones conclude that the greenhouse is more effective to air quality regulation but not so clearly wellperformed to thermal buffering as expected due to the dominate active central heating in the Winter. This fieldwork test results for building performance can be helpful for both architects and engineers in the early phase of sustainable design.

关键词： public building buffer zone building performance fieldwork test space effect

Ethylene Polymerization and Copolymerization with Polar Monomers by Benzothiophene-bridged BPMO-Pd Catalysts

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Chinese Journal of Polymer Science 2020年第6期38卷 579-586页

作者： Hong-Liang Mu Jun-hao ye Guang-Lin Zhou Kang-Kang Li Zhong-Bao Jian State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

A series of new bisphosphine-monoxide(BPMO)ligands based on benzothiophene backbone and the corresponding palladium complexes{k2-P(O)(Ph)2-3-PR1R2-C8H4S}PdMeCl{2a:R1=R2=Ph;2b:R1=R2=2-0Me-Ph;2c:R1=R2=2-CF3-Ph;2d:Rl=Ph,R2=2-(2',6'-(OMe)2C6Hz)-C6H4}were synthesized and fully characterized by1H-,13C-,31P-,and 2D-NMR spectroscopy and single-crystal X-ray *** the presence of Na+B[3,5-(CF3)2C6H3]4(NaBArF),these complexes showed very high activities(up to 2.0 x 10’g-mol-1.h-)for ethylene *** significantly,these catalysts enabled the copolymerization of ethylene with a broad scope of commercially available polar comonomers such as acrylates,acrylic acid,acrylonitrile,vinyltrialkoxysilane,allyl acetate,and long-chain 6-chloro-1-hexene to give functionalized polyethylene with reasonable catalytic activities(up to 105 g-mol-l.h-)and incorporations(up to 5.3 mol96).This contribution suggests that,besides the modulation of conventionally steric and electronic factors,the connectivity(at dfferent linking positions)of BPMO(P,O)donors to the heteroaryl backbone also greatly infuences the catalyst properties in terms of catalytic activity,polymer branching content,comonomer scope,and comonomer incorporation.

关键词： Olefin polymerization Bisphosphine monoxide Plladium Polar monomers Heteroaryl backbone

Research on Tensor Multi-Clustering Distributed Incremental Updating Method for Big Data

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Computers, Materials & Continua 2024年第10期81卷 1409-1432页

作者： Hongjun Zhang Zeyu Zhang Yilong Ruan hao ye Peng Li Desheng Shi School of Computer Science Nanjing University of Posts and TelecommunicationsNanjing210023China Ministry of Science and Technology Innovation China Communications Services Corporation LimitedBeijing100071China School of Artificial Intelligence The University of ManchesterManchesterM139PLUK Ministry of Technology Innovation China Telecom Artificial Intelligence Technology(Beijing)Corporation LimitedBeijing100032China Ministry of Science and Technology Innovation Zhongbo Information Technology Research Institute Corporation LimitedNanjing210012China Jiangsu Postal Big Data Technology and Application Engineering Research Center Nanjing University of Posts and TelecommunicationsNanjing210003China

The scale and complexity of big data are growing continuously,posing severe challenges to traditional data processing methods,especially in the field of clustering *** address this issue,this paper introduces a new method named Big Data Tensor Multi-Cluster Distributed Incremental Update(BDTMCDIncreUpdate),which combines distributed computing,storage technology,and incremental update techniques to provide an efficient and effective means for clustering ***,the original dataset is divided into multiple subblocks,and distributed computing resources are utilized to process the sub-blocks in parallel,enhancing ***,initial clustering is performed on each sub-block using tensor-based multi-clustering techniques to obtain preliminary *** new data arrives,incremental update technology is employed to update the core tensor and factor matrix,ensuring that the clustering model can adapt to changes in ***,by combining the updated core tensor and factor matrix with historical computational results,refined clustering results are obtained,achieving real-time adaptation to dynamic *** experimental simulation on the Aminer dataset,the BDTMCDIncreUpdate method has demonstrated outstanding performance in terms of accuracy(ACC)and normalized mutual information(NMI)metrics,achieving an accuracy rate of 90%and an NMI score of 0.85,which outperforms existing methods such as TClusInitUpdate and TKLClusUpdate in most ***,the BDTMCDIncreUpdate method offers an innovative solution to the field of big data analysis,integrating distributed computing,incremental updates,and tensor-based multi-clustering *** not only improves the efficiency and scalability in processing large-scale high-dimensional datasets but also has been validated for its effectiveness and accuracy through *** method shows great potential in real-world applications where dynamic data growth is common,and it is of significant imp

关键词： Tensor incremental update distributed clustering processing big data

Enhanced thermoelectric performance of Bi2Se3/TiO2 composite

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Rare Metals 2020年第8期39卷 887-894页

作者： Yu-Xi Yang ye-hao Wu Qi Zhang Gao-Shao Cao Tie-Jun Zhu Xin-Bing Zhao State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China

Bi2(Te,Se)3 alloys are conventional commercial thermoelectric materials for solid-state refrigeration around room *** recent years,much attention has been paid to various advanced thermoelectric composite materials due to the unique thermoelectric *** this work,Bi2Se3/TiO2 composites were prepared by hot pressing the plate-like Bi2Se3 powders coated in situ with hydrolyzed hytetabutyl-n-butyl titanate(TNBT),and therefore numerous TiO2 in micrometer size could be formed on the interface of Bi2Se3 *** carrier concentration in Bi2Se3 matrix is optimized subject to the addition of n-type semiconductor TiO2,contributing to a significant improved power *** the meantime,the lattice thermal conductivity is also suppressed due to the enhanced phonon scattering at Bi2Se3/TiO2 interface and amorphous TiO2 *** a consequence,a peak figure of merit(zT)of 0.41 is obtained at 525 K in Bi2Se3/15 mol%TiO2 composites,nearly 50%augment over the pristine Bi2Se3 binary compound.

关键词： Bi2(Te,Se)3 Thermoelectric materials TiO2 Composite

Statistical x^2 Testing Based Fault Detection for Linear Discrete Time-delay Systems

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自动化学报 2014年第7期40卷 1278-1284页

作者： LIU Bo-Ang ye hao Department of Mathematical Sciences Tsinghua University Beijing 100084 China Department of Automation Tsinghua Uni-versity Beijing 100084 China

This paper is concerned with statistical X~2 testing based fault detection (FD) for a class of linear discrete time-varying (LDTV) stochastic systems with delayed state. Different from the traditional residual based FD, we propose to construct the evaluation function by directly using measurement observations. Then an equivalent solution can be given in terms of Riccati recursion by utilizing projection and innovation analysis technique. Moreover, the fault free case evaluation function is with central X~2 distribution and the heavy computational burden is reduced. Furthermore, strategies of X~2 statistic testing on evaluation function are also discussed. Finally, a numerical example is given to illustrate the proposed method.

关键词：离散时滞系统检验统计量故障检测线性评价函数随机系统 LDTV 黎卡提

Application and Prospect of Platelet Multi-omics Technology in Study of Blood Stasis Syndrome

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Chinese Journal of Integrative Medicine 2022年第2期28卷 99-105页

作者： LI Ying SUN Ming-qian LI Lei ZHANG ye-hao MIAO Lan LIU Jian-xun Beijing Key Laboratory of Pharmacology of Chinese Materia Region Xiyuan HospitalChina Academy of Chinese Medical SciencesNational Clinical Research Center for Chinese Medicine CardiologyBeijing(100091)China

The abnormality of platelet function plays an important role in the pathogenesis and evolution of blood stasis syndrome(BSS).The explanation of its mechanism is a key scientific issue in the study of cardiovascular and cerebrovascular diseases and *** biology technology provides a good technical platform for further development of platelet multi-omics,which is conducive to the scientific interpretation of the biological mechanism of *** article summarized the pathogenesis of platelets in BSS,the mechanism of action of blood activating and stasis resolving drugs,and the application of genomics,proteomics,and metabonomics in platelet research,and put forward the concept of"plateletomics in BSS".Through the combination and cross-validation of multi-omics technology,it mainly focuses on the clinical and basic research of cardiovascular and cerebrovascular diseases;through the interactive verification of multi-omics technology and system biology,it mainly focuses on the platelet function and secretion *** article systematically explains the molecular biological mechanism of platelet activation,aggregation,release,and other stages in the formation and development of BSS,and provides a new research idea and method for clarifying the pathogenesis of BSS and the mechanism of action of blood activating and stasis resolving drugs.

关键词： blood stasis syndrome platelet transcriptomics metabonomics proteomics

Effect of Atmospheric CO_2 Enrichment on Soil Respiration in Winter Wheat Growing Seasons of a Rice-Wheat Rotation System

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Pedosphere 2013年第6期23卷 752-766页

作者： SUN Hui-Feng ZHU Jian-Guo XIE Zu-Bin LIU Gang TANG hao-ye State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of Sciences University of Chinese Academy of Sciences Jiangsu Biochar Engineering Center

Studies on the effect of elevated CO2 on C dynamics in cultivated croplands are critical to a better understanding of the C cycling in response to climate change in agroecosystems. To evaluate the effects of elevated CO2 and different N fertilizer application levels on soil respiration, winter wheat （Triticum aestivum L. cv. Yangmai 14） plants were exposed to either ambient CO2 or elevated CO2 （ambient [CO2] ＋ 200 μmol mol-1）, under N fertilizer application levels of 112.5 and 225 kg N ha-1 （as low N and normal N subtreatments, respectively）, for two growing seasons （2006-2007 and 2007-2008） in a rice-winter wheat rotation system typical in China. A split-plot design was adopted. A root exclusion method was used to partition soil respiration （RS） into heterotrophic respiration （RH） and autotrophic respiration （RA）. Atmospheric CO2 enrichment increased seasonal cumulative RS by 11.8% at low N and 5.6% at normal N when averaged over two growing seasons. Elevated CO2 significantly enhanced （P 〈 0.05） RS （12.7%）, mainly due to the increase in RH （caused by decomposition of larger amounts of rice residue under elevated CO2） during a relative dry season in 2007-2008. Higher N supply also enhanced RS under ambient and elevated CO2. In the 2007-2008 season, normal N treatment had a significant positive effect （P 〈 0.01） on seasonal cumulative RS relative to low N treatment when averaged across CO2 levels （16.3%）. A significant increase in RA was mainly responsible for the enhanced RS under higher N supply. The correlation （r2） between RH and soil temperature was stronger （P 〈 0.001） than that between RS and soil temperature when averaged across all treatments in both seasons. Seasonal patterns of RA may be more closely related to the plant phenology than soil temperature. The Q10 （the multiplier to the respiration rate for a 10 ℃ increase in soil temperature） values of RS and RH were not affected by elevated CO2 or higher N supply. These results mainly suggested that the i

关键词： autotrophic respiration carbon dynamics heterotrophic respiration N fertilization soil temperature

Study of the interfacial interactions in the molybdenite floatation system

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Journal of China University of Mining and Technology 2008年第1期18卷 82-87页

作者： WANG Hui GU Guo-hua FU Jian-gang CHEN Li hao ye School of Chemistry and Chemical Engineering Central South University Changsha Hunan 410083 China

Interfacial interactions involving Van der Waals force, hydrophobic attractive force and hydration exclusive force were investigated in this paper. The interfacial interactive free energy of a series of interfaces occurring between minerals, water, collectors and bubble was calculated. The results show that a Van der Waals attractive force and a hydrophobic attractive force exist between each mineral and water interface. The hydrophobic attractive force between molybdenite and water is markedly weaker than the hydrophobic attractive force between gangue and water. The hydrophobic attractive force between collector molecules and water is the main driving force that causes the collectors to become dispersed in the pulp. The strong hydrophobic attractive force between molybdenite and the bubble interface is the basic reason for the natural floatability of molybdenite. The Van der Waals force between molybdenite and the collectors is attractive in water solution, but it is not the cause of the main force between them. The main force that results in the collection effect is a hydrophobic attractive force caused by the Lewis acid-base interaction at the molybdenite surface. A floatation experiment shows that the adsorption intensity of the collector on the molybdenite surface is not the crucial factor for molybdenite floatation. Rather, the dispersing capability of the collector in the water phase and its selectivity for the various minerals in the floatation system are more important.

关键词： molybdenite flotation interfacial interaction contact angle surface free energy