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Finite-size scaling of O(n) systems at the upper critical dimensionality

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National Science Review 2021年第3期8卷 53-61页

作者： jian-ping lv Wanwan Xu Yanan Sun Kun Chen Youjin Deng Department of Physics Anhui Key Laboratory of Optoelectric Materials Science and Technology Key Laboratory of Functional Molecular Solids Ministry of Education Anhui Normal University Department of Physics and Astronomy RutgersThe State University of New Jersey National Laboratory for Physical Sciences at Microscale and Department of Modern Physics University of Science and Technology of China Department of Physics and Electronic Information Engineering Minjiang University

Logarithmic finite-size scaling of the O(n) universality class at the upper critical dimensionality(dc=4) has a fundamental role in statistical and condensed-matter physics and important applications in various experimental ***,we address this long-standing problem in the context of the n-vector model(n=1,2,3) on periodic four-dimensional hypercubic *** establish an explicit scaling form for the free-energy density,which simultaneously consists of a scaling term for the Gaussian fixed point and another term with multiplicative logarithmic *** particular,we conjecture that the critical two-point correlation g(r,L),with L the linear size,exhibits a two-length behavior:follows r2-dcgoverned by the Gaussian fixed point at shorter distances and enters a plateau at larger distances whose height decays as L-dc/2(lnL)~p with p=1/2 a logarithmic correction *** extensive Monte Carlo simulations,we provide complementary evidence for the predictions through the finite-size scaling of observables,including the two-point correlation,the magnetic fluctuations at zero and nonzero Fourier modes and the Binder *** work sheds light on the formulation of logarithmic finite-size scaling and has practical applications in experimental systems.

关键词： critical phenomena universality class O(n) vector model finite-size scaling

网络情境下产品伤害危机负面溢出效应研究——基于信息加工的视角

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技术经济与管理研究 2016年第8期 9-14页

作者：吴剑琳吕萍中国科学技术大学管理学院安徽合肥230026

由于网络技术的不断发展,产品伤害危机信息的传播更加快速,对同行业产品造成了不可忽视的负面影响。文章从消费者信息加工视角出发,基于分类启动效应和可接近-可诊断模型,探讨网络情境下来源国印象和网络信息可信度对产品伤害危机溢出... 详细信息

由于网络技术的不断发展,产品伤害危机信息的传播更加快速,对同行业产品造成了不可忽视的负面影响。文章从消费者信息加工视角出发,基于分类启动效应和可接近-可诊断模型,探讨网络情境下来源国印象和网络信息可信度对产品伤害危机溢出效应的影响机制,并提出感知风险的中介作用。通过对207个样本进行组间实验结果表明:来源国印象越好,产品伤害危机对同国行业溢出效应越小;信息可信度越高,产品伤害危机对同国行业溢出效应越大;感知风险在来源国效应和网络信息可信度与溢出效应间起完全中介作用。研究结论丰富了产品伤害危机溢出效应的研究,并为危机情境下同行业其他品牌的应对提供了有效的措施建议。

关键词：产品伤害危机网络技术来源国效应信息可信度

医患冲突的媒介建构——基于《人民日报》与《南方都市报》的比较分析

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西南政法大学学报 2017年第2期19卷 128-135页

作者：贺建平吕霞飞西南政法大学新闻传播学院重庆401120

医患关系作为典型的社会问题一直是媒体关注的焦点。媒体是社会集体思考共同问题的场域,影响大众对公共议题的认知与态度。《人民日报》呈现以责任框架为主,并将医患矛盾冲突归责于医改制度缺陷;《南方都市报》则用冲突框架,同时归责于... 详细信息

医患关系作为典型的社会问题一直是媒体关注的焦点。媒体是社会集体思考共同问题的场域,影响大众对公共议题的认知与态度。《人民日报》呈现以责任框架为主,并将医患矛盾冲突归责于医改制度缺陷;《南方都市报》则用冲突框架,同时归责于病患及其家属和医护人员;两家媒体均运用"战争"隐喻医患冲突;这种媒介话语对医患双方极易产生敌意媒体效果。我们应深入思考新闻媒体在医患关系中扮演的角色和功能,促进医患双方的有效沟通。

关键词：医患冲突媒介建构《人民日报》《南方都市报》

Identification of a dual functional betulinic acid analog for the treatment of osteoarthritis by phenotypic screening

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Science China Life Sciences 2025年第1期 300-302页

作者： Ze-Min Lin Mai Xiang Wen-Hui Wei Shu-Hui Fan Li Chen Jie Wang Xiao-Qian Yang Chun-Hao Yang Shi-Jun He jian-ping Zuo Laboratory of Immunopharmacology State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of Sciences School of Pharmacy University of Chinese Academy of Sciences School of Pharmacy Nanjing University of Chinese Medicine State Key Laboratory of Drug Research Department of Medicinal ChemistryShanghai Institute of Materia MedicaChinese Academy of Sciences Innovation Research Institute of Traditional Chinese Medicine Shanghai University of Traditional Chinese Medicine Experiment Center for Science and Technology Shanghai University of Traditional Chinese Medicine

Dear Editor, Phenotypic drug discovery, which observes compound effects on physiology,has given way to targeting specific molecules, but has revived by using modern methods to find drugs based on therapeutic outcomes in disease models(Vincent et al., 2022). Osteoarthritis(OA) is a prevalent chronic joint disorder, primarily affecting knee joints, with osteoclast activation due to low-grade inflammation resulting in increased bone resorption and structural changes in the joint(Katz et al.,2021).

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Toward a seamless adaptation platform for Internetware

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Science China(Information Sciences) 2013年第8期56卷 41-53页

作者： CAO Chun YU ping HU Hao lv jian State Key Laboratory for Novel Software Technology Nanjing University Department of Computer Science and Technology Nanjing University

Internetware applications must adapt themselves to keep their satisfaction with sufficient functionality,performance and *** this paper,we introduce a comprehensive technical platform to support such *** and low disruptive software updating techniques for multi-grained abstractions,namely objects,processes/workflows,components and coordinated systems,are proposed toward a seamless adaptation *** platform integrates all the techniques organically to support the practical adaptation scenarios that need the synergy of multiple *** implement the platform in accordance with industrial standards with its feasibility and efficiency demonstrated and hope the platform can be a stepping stone for future technical research for the Internetware paradigm.

关键词： Internetware seamless adaptation dynamic software update process migration component reconfiguration

三种梅毒螺旋体黏附素在梅毒兔模型中转录水平的差异性比较

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皮肤性病诊疗学杂志 2018年第1期25卷 1-7页

作者：柯吴坚吕萍刘雅慧黄涛张君杨斌郑和平南方医科大学皮肤病医院广东广州510091

目的:从宿主水平探讨梅毒螺旋体(TP)黏附素——TP0136、TP0155和TP0751蛋白在梅毒兔模型中转录水平变化情况。方法:(1)予新西兰白兔皮下注射TP Nichols Seattle株,建立早期兔梅毒感染模型;(2)制备TP0136、TP0155和TP0751质粒标准品;(3)... 详细信息

目的:从宿主水平探讨梅毒螺旋体(TP)黏附素——TP0136、TP0155和TP0751蛋白在梅毒兔模型中转录水平变化情况。方法:(1)予新西兰白兔皮下注射TP Nichols Seattle株,建立早期兔梅毒感染模型;(2)制备TP0136、TP0155和TP0751质粒标准品;(3)荧光定量PCR连续动态观察兔硬下疳皮损形成过程中TP0136、TP0155和TP0751 mRNA水平的表达差异。结果:(1)新西兰白兔背部在第6天出现红色丘疹,到第19天皮疹达最大并出现溃疡形成硬下疳。第25天起,全身陆续出现播散性二期梅毒疹;(2)TP0136、TP0155和TP0751 mRNA水平在早期呈现上升趋势,到第15天达最高峰(P0.05);(3)标准化的TP0136 mRNA水平在第30天达最高峰(P<0.05);标准化的TP0155 mRNA水平分别在第24天和第30天出现峰值(P<0.05);标准化的TP0751 mRNA水平在第24天达最高峰(P<0.05)。结论:从宿主水平证实TP0136、TP0153和TP0751三种TP黏附素间存在转录水平差异,提示TP表达的多个黏附蛋白是具有各自特异性的宿主-病原体相互黏附作用机制。

关键词：梅毒螺旋体梅毒兔模型黏附素转录水平

Identification of SNP markers correlated with the tolerance of low-salinity challenge in swimming crab(Portunus trituberculatus)

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Acta Oceanologica Sinica 2019年第8期38卷 41-47页

作者： Yanyan Feng Dening Zhang jianjian lv Baoquan Gao jian Li ping Liu Key Laboratory of Sustainable Development of Marine Fisheries of Ministry of Agriculture Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences

Water salinity condition is an important factor for artificial propagation of the swimming crab(Portunus trituberculatus). Low salinity(LS)-resistant strains are preferred by crab industries. Single nucleotide polymorphism(SNP), the third generation of molecular markers, can be utilized in the breeding of LS-resistant species of P. trituberculatus. Our earlier study identified 615 genes differentially expressed in low-salinity stress compared to the controls. Although thousands of SNP loci have been found, it is hard to identify a SNP marker in correlation with a desired trait. In this study, time-of-flight mass spectrometry(TOF-MS), as an efficient method to select SNPs for the tolerance of LS challenge, was utilized for SNP typing. Fifty gene segments were amplified based on comparative transcriptomics in our earlier study, a total of 18 511 bp DNA fragments were amplified,and eighty-five SNP markers were found. The frequency of the SNPs was estimated to be 0.46 per 100 base pairs of DNA sequences. The rate of the conversion mutation was 81%, while the transversion mutation was 19%. The mutation rate of the G/T(C/A), A/T and G/C was 26%, 12% and 7%, respectively. Eight SNP markers were found to significantly correlate with the adaption of low salinity. Of the eight SNP markers, three linked-SNPs were found in the cuticle proportion gene, and another three SNPs were found in three new genes, and the rest two were found in aquaporin gene and chloride channel gene. The development of these SNP markers found in our study could be primarily used for breeding LS-resistant strains of P. trituberculatus.

关键词： Portunus trituberculatus low salinity time-of-flight mass spectrometry single nucleotide polymorphism SNP

Prediction of shelled shrimp weight by machine vision

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第8期10卷 589-594页

作者： Peng-min PAN jian-ping LI Gu-lai lv Hui YANG Song-ming ZHU jian-zhong LOU Department of Biosystems Engineering School of Biosystems Engineering and Food Science Zhejiang University Hangzhou 310029 China

The weight of shelled shrimp is an important parameter for grading *** weight prediction of shelled shrimp by contour area is not accurate enough because of the ignorance of the shrimp *** this paper,a multivariate prediction model containing area,perimeter,length,and width was established.A new calibration algorithm for extracting length of shelled shrimp was proposed,which contains binary image thinning,branch recognition and elimination,and length reconstruction,while its width was calculated during the process of length *** model was further validated with another set of images from 30 shelled *** a comparison purpose,artificial neural network(ANN) was used for the shrimp weight *** ANN model resulted in a better prediction accuracy(with the average relative error at 2.67%),but took a tenfold increase in calculation time compared with the weight-area-perimeter(WAP) model(with the average relative error at 3.02%).We thus conclude that the WAP model is a better method for the prediction of the weight of shelled red shrimp.

关键词： Shelled shrimp Image Feature Length extracting Weight prediction Weight-area-perimeter (WAP) model

Micromechanism and mathematical model of stress sensitivity in tight reservoirs of binary granular medium

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Petroleum Science 2024年第3期21卷 1780-1795页

作者： jian-Bang Wu Sheng-Lai Yang Qiang Li Kun Yang Can Huang Dao-ping lv Wei Zhou State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing2249China Laboratoire de G eologie Ecole Normale Sup erieure/CNRS UMR8538PSL Research UniversityParis75005France Research Institute of Exploration and Development Xinjiang Oilfield CompanyKaramay834000XinjiangChina

Research on reservoir rock stress sensitivity has traditionally focused on unary granular structures,neglecting the binary nature of real reservoirs,especially tight *** the stresssensitive behavior and mathematical characterization of binary granular media remains a challenging *** this study,we conducted online-NMR experiments to investigate the permeability and porosity evolution as well as stress-sensitive control mechanisms in tight sandy conglomerate *** results revealed stress sensitivity coefficients between 0.042 and 0.098 and permeability damage rates ranging from 65.6%to 90.9%,with an average pore compression coefficient of 0.0168—0.0208 MPa ***-scale compression occurred in three stages:filling,compression,and compaction,with matrix pores playing a dominant role in pore *** stress sensitivity of binary granular media was found to be influenced by the support structure and particle *** stress sensitivity was associated with small fine particle size,high fines content,high uniformity coefficient of particle size,high plastic deformation,and low Young's ***-supported samples exhibited a high irreversible permeability damage rate(average=74.2%)and stress sensitivity coefficients(average=0.089),with pore spaces more *** contrast,grain-supported samples showed low stress sensitivity coefficients(average=0.021)at high stress *** on the experiments,we developed a mathematical model for stress sensitivity in binary granular media,considering binary granular properties and nested interactions using Hertz contact deformation and Poiseuille *** describing the change in activity content of fines under stress,we characterized the non-stationary state of compressive deformation in the binary granular structure and classified the reservoir into three *** model was applied for production prediction using actual data from the Mahu reservoir in China,showing that the e

关键词： Stress sensitivity Binary granular medium Tight reservoir Online-NMR Reservoir energy retention rate