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Boundary-effect and scale-heating rate equivalence effect of cracking behavior in the rock models subjected to heating from the central borehole

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Science China(Technological Sciences) 2020年第5期63卷 809-818页

作者： HUANG Xin tang ShiBin tang ChunAn State Key Laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalian 116024China

Thermal cracking is broadly observed in rock engineering.A finite element numerical model which considers the heterogeneity of rock materials and the damage evolution process was used to simulate the thermal cracking behavior of square rock samples heated from the central *** thermal and mechanical behaviors of two cases,i.e.,the case with large size but low heating rate and the case with small size but high heating rate were compared to study the crack initiation location in the models with different model sizes and heating *** simulated stress and temperature fields,as well as the failure pattern,were in good agreement with the experimental *** temperature and thermal stress distribution during the heating process in both cases indicated that high tensile stress was concentrated around the thermal gradient front,which resulted in the cracks initiating at the location with a certain distance away from the *** results show that under the same heating rate,crack initiation location moves outwards with the increment of the model size then remains approximately at one location,which reflects the ***,the results indicate that the relative crack initiation locations in two cases are nearly the same if the ratio between the heating rate in two cases(Tx/Ty)nearly equal to the square of the inverse ratio of corresponding model side lengths((ay/ax)2).This concept is named the scale-heating rate equivalence effect in this *** is beneficial for studying thermal cracking of rock both numerically and experimentally since the model size can be significantly decreased.

关键词： thermal cracking nuclear waste disposal numerical simulation boundary-effect scale-heating rate equivalence effect

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Harboring CAR-T cells using an injectable scaffold to treat solid tumors

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National Science Review 2024年第5期11卷 91-92页

作者： Li tang Institute of Bioengineering (IBI) école polytechnique fédérale de Lausanne (EPFL)

Genetic expression of chimeric antigen receptors (CAR) enables T cells to target and kill cancer cells in an MHCindependent manner, resulting in a potent antitumor response [1]. To date, more than 10 CAR-T cell products have been approved globally for the treatment of hematologic disorders such as relapsed/refractory B-cell acute lymphoblastic leukemia, non-Hodgkin lymphoma, and multiple myeloma [2,3].

关键词： scaffold cells solid treat harboring injectable tumors using

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Non-noble metal anode based dual-ion batteries： promising high-energy and low-cost energy storage devices

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Science China Materials 2017年第4期60卷 368-370页

作者： Zhiyong tang CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 China

Lithium-ion batteries(LIBs),as one of the most commonly used electrochemical energy storage devices,have dominated todays markets for portable electronics and electric vehicles[1].Llowever,their energy density cannot yet satisfy the increasing requirement,so it is imperative for developing next-generation batteries with high energy density together with long cycling life and good *** recent years,a novel type of battery called as

关键词：科学研究材料学工程材料中国

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Global change hydrology:Terrestrial water cycle and global change

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Science China Earth Sciences 2020年第3期63卷 459-462页

作者： Qiuhong tang Key Laboratory of Water Cycle and Related Land Surface Processes Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences University of Chinese Academy of Sciences

*** Global Change Hydrology(GCH)is an emerging interdisciplinary field that links global change research and *** integrates hydrology,climatology,and geography to study the interactions between the terrestrial water cycle and global change across various time and space *** main objective of GCH is to understand the natural and anthropogenic causes of the changing terrestrial water cycle and the associated influences and feedbacks in the Earth system.

关键词： hydrology terrestrial Global

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Multi-objective optimization strategies using adjoint method and game theory in aerodynamics

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Acta Mechanica Sinica 2006年第4期22卷 307-314页

作者： Zhili tang College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

There are currently three different game strategies originated in economics：（1） Cooperative games （Pareto front）, （2） Competitive games （Nash game） and （3） Hierarchical games （Stackelberg game）. Each game achieves different equilibria with different performance, and their players play different roles in the games. Here, we introduced game concept into aerodynamic design, and combined it with adjoint method to solve multi- criteria aerodynamic optimization problems. The performance distinction of the equilibria of these three game strategies was investigated by numerical experiments. We computed Pareto front, Nash and Stackelberg equilibria of the same optimization problem with two conflicting and hierarchical targets under different parameterizations by using the deterministic optimization method. The numerical results show clearly that all the equilibria solutions are inferior to the Pareto front. Non-dominated Pareto front solutions are obtained, however the CPU cost to capture a set of solutions makes the Pareto front an expensive tool to the designer.

关键词： Multi-objective optimization. Pareto front Nash game Stackelberg game Adjoint method

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Cramer-Rao bound and signal-to-noise ratio gain in distributed coherent aperture radar

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Journal of Systems Engineering and Electronics 2014年第2期25卷 217-225页

作者： Peilin Sun Jun tang Xiaowei tang Department of Electronic Engineering Tsinghua University

This paper studies the estimation performance of the coherent processing parameter （CPP）, including time delay differences and phase synchronization errors among different apertures of the distributed coherent aperture radar （DCAR）. Firstly, three architectures of signal processing in the DCAR are introduced. Secondly, the closed-form Cramer-Rao bound （CRB） of the CPP estimation is derived and compared. Then, the closed-form CRB is verified by numerical simulations. Finally, when the next generation radar works in a fully coherent mode, the closed-form signal-to-noise ratio （SNR） gain of the three architectures is presented.

关键词： Cramer-Rao bound (CRB) joint parameter estimation,distributed coherent aperture radar (DCAR).

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Direct knitting privileged molecular catalysts into recyclable single-site catalysts with enhanced activity

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Science China Chemistry 2020年第4期63卷 419-420页

作者： Yong tang State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China

An ideal strategy for catalyst immobilization is taking advantage of the widely well studied homogeneous molecular catalysts and transforming them directly into highly efficient and recyclable heterogeneous ***,the obtained heterogeneous catalysts often have inferior activity due to altered chemical environment around active centers and decreased mass/heat transfer[1,2].

关键词： catalysts molecular centers

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Activin A receptor type 1C single nucleotide polymorphisms associated with esophageal squamous cell carcinoma risk in Chinese population

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 39-51页

作者： Si-Yun Lin Hou Huang Jin-Jie Yu Feng Su Tian Jiang Shao-Yuan Zhang Lu Lv Tao Long Hui-Wen Pan Jun-Qing Qi Qiang Zhou Wei-Feng tang Guo-Wen Ding Li-Ming Wang Li-Jie Tan Jun Yin Department of Thoracic Surgery Zhongshan Hospital Affiliated to Fudan UniversityShanghai 200032China Shanghai Key Laboratory of Clinical Geriatric Medicine Huadong Hospital Affiliated to Fudan UniversityShanghai 200040China Department of Cardiothoracic Surgery The Affiliated People's Hospital of Jiangsu UniversityZhenjiang 212002Jiangsu ProvinceChina Department of Thoracic Surgery Sichuan Cancer Hospital&InstituteChengdu 610042Sichuan ProvinceChina Department of Cardiothoracic Surgery Nanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjing 210000Jiangsu ProvinceChina Department of Respiratory and Critical Care Medicine Shanghai Xuhui Central HospitalShanghai 200032China

BACKGROUND Transforming growth factor-β(TGF-β)superfamily plays an important role in tumor progression and *** A receptor type 1C(ACVR1C)is a TGF-βtype I receptor that is involved in tumorigenesis through binding to dif-ferent *** To evaluate the correlation between single nucleotide polymorphisms(SNPs)of ACVR1C and susceptibility to esophageal squamous cell carcinoma(ESCC)in Chinese Han *** In this hospital-based cohort study,1043 ESCC patients and 1143 healthy controls were *** SNPs(rs4664229,rs4556933,rs77886248,rs77263459,rs6734630)of ACVR1C were assessed by the ligation detection reaction ***-Weinberg equilibrium test,genetic model analysis,stratified analysis,linkage disequi-librium test,and haplotype analysis were *** Participants carrying ACVR1C rs4556933 GA mutant had significantly decreased risk of ESCC,and those with rs77886248 TA mutant were related with higher risk,especially in older male *** the haplotype analysis,ACVR1C Trs4664229Ars4556933Trs77886248Crs77263459Ars6734630 increased risk of ESCC,while Trs4664229Grs4556933Trs77886248Crs77263459Ars6734630 was associated with lower susceptibility to *** ACVR1C rs4556933 and rs77886248 SNPs were associated with the susceptibility to ESCC,which could provide a potential target for early diagnosis and treatment of ESCC in Chinese Han population.

关键词： Activin A receptor type 1C Single nucleotide polymorphisms Esophageal squamous cell carcinoma Genetic susceptibility Hospital-based cohort study

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Robust Consensus Tracking of Heterogeneous Multi-Agent Systems Under Switching Topologies

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Journal of Systems Science & Complexity 2016年第5期29卷 1226-1237页

作者： tang Yutao School of Automation Beijing University of Posts and Telecommunications

This paper considers a robust consensus tracking problem of heterogeneous multi-agent systems with time-varying interconnection topologies. Based on common Lyapunov function and internal model techniques, both state and output feedback control laws are derived to solve this *** proposed design is robust by admitting some parameter uncertainties in the multi-agent system.

关键词： Internal model multi-agent system robust consensus tracking switching topology.

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EXPLORING ON-LINE SOCIETAL RISK PERCEPTION FOR HARMONIOUS SOCIETY MEASUREMENT

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Journal of Systems Science and Systems Engineering 2013年第4期22卷 469-486页

作者： Xijin tang Institute of Systems Science Academy of Mathematics & Systems ScienceChinese Academy of Sciences

The nearly 30-year economic growth miracle brings the consequent tremendous poor-rich gap leading strong drives for social transformation in current China. Chinese top leaders have realized to increase the peoples＇ income, improve quality of life and construct a ＂harmonious society＂ as key missions especially in recent 10 years. How to measure a harmonious society is one important topic as different measures may lead to different development policies. This paper outlines over 10 indices relevant to measure a harmonious society. Some are global indicators, while some are contributed by domestic researchers and arouse debates. Most of those indicators require conducting surveys on social attitudes under micro levels, which is always time consuming with problem of data quality. As Internet technology advances provide ways to record and disseminate fresh community ideas and thoughts conveniently, detecting topics or emotions from on-line public opinions is becoming a trend or one supplement way to overcome those data acquisition problems. This paper discusses one approach to on-line societal risk perception using hot search words and BBS posts. Such a trial aims to provide another way to societal risk perception different from those in traditional socio psychology studies. Challenges are also indicated.

关键词： Harmonious society measurement BBS posts Baidu hot search words societal risk perception on-line opinions

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