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Will China be Able to Avoid the Japan Syndrome？

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China & World Economy 2016年第5期24卷 98-121页

作者： fang yao National School of Development and China Center for Economic Research PekingUniversity China

Following the 1973 oil crisis, Japan ＇s economic growth slowed down substantially and its asset prices overshot their long-term trend. The economic performance of this episode of the Japanese history has been dubbed the ＂Japan syndrome.＂ China has followed Japan＇s export-led growth model and the the world economy following the oil crisis current worm economy very much resembles It is then a legitimate question to ask whether China is likely to follow in Japan＇s steps and experience a major slowdown in its growth. The present paper shows that China can do a better job than Japan primarily because its large size allows the country to benefit from internal convergence. Based on the estimation of a growth equation using cross-country panel data, the paper forecasts that under reasonable assumptions about the growth rate of the worm economy and China ＇s investment rate, China could maintain reasonably high growth rates in the next 10 years.

关键词： China convergence Japan Syndrome trend growth rate

Influence of the ambient air temperature on the electrical contact reliability of electromagnetic relay

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第3期8卷 485-489页

作者： yao fang ZHENG Jian-rong HUANG Zhang-wu People Electric Appliances Group Yueqing 32560 China

The dynamic contact resistances of HH52P electromagnetic relays are measured under different ambient air tem- perature. Their diagnostic parameters are extracted and determined. It is found that the ambient air temperature obviously influ- ences some parameters. In order to research its influence on the electrical contact reliability of electromagnetic relay, the statistic analysis is applied to study the static contact resistance, the max of the dynamic contact resistance and the bounce time. It is found that the ambient air temperature regularly influences the three parameters. Thoroughly, the phenomenon is studied and analyzed in the point of material science so as to probe into the essential matter of it.

关键词： Ambient air temperature Electromagnetic relay Electrical contact reliability Contact resistance Bounce time

Distinct community assembly processes underlie significant spatiotemporal dynamics of abundant and rare bacterioplankton in the Yangtze River

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Frontiers of Environmental Science & Engineering 2022年第6期16卷 145-158页

作者： Malan Yi yao fang Guoping Hu Shufeng Liu Jinren Ni Tang Liu College of Environmental Sciences and Engineering Peking UniversityKey Laboratory of Water and Sediment Sciences(Ministry of Education)Beijing 100871China Fluid Science and Resources Division Department of Chemical EngineeringThe University of Western AustraliaCrawleyWA 6009Australia College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060China State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems Peking UniversityBeijing 100871China

The rare microbial biosphere provides broad ecological services and resilience to various ***,the biogeographical patterns and assembly processes of rare bacterioplankton communities in large rivers remain *** this study,we investigated the biogeography and community assembly processes of abundant and rare bacterioplankton taxa in the Yangtze River(China)covering a distance of 4300 *** results revealed similar spatiotemporal patterns of abundant taxa(AT)and rare taxa(RT)at both taxonomic and phylogenetic levels,and analysis of similarities revealed that RT was significantly influenced by season and landform than ***,RT correlated with more environmental factors than AT,whereas environmental and spatial factors explained a lower proportion of community shifts in RT than in *** steeper distance–decay slopes in AT indicated higher spatial turnover rates of abundant subcommunities than rare *** null model revealed that both AT and RT were mainly governed by stochastic ***,dispersal limitation primarily governed the AT,whereas the undominated process accounted for a higher fraction of stochastic processes in *** flow and suspended solids mediated the balance between the stochastic and deterministic processes in *** spatiotemporal dynamics and assembly processes of total taxa were more similar as AT than *** study provides new insights into both significant spatiotemporal dynamics and inconsistent assembly processes of AT and RT in large rivers.

关键词： Rare taxa Biogeography Community assembly Bacterioplankton The Yangtze River

Remote,selective,and in situ manipulation of liquid droplets on a femtosecond laser-structured superhydrophobic shape-memory polymer by near-infrared light

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Science China Chemistry 2021年第5期64卷 861-872页

作者： Xue Bai Jiale Yong Chao Shan yao fang Xun Hou Feng Chen State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information School of Electronic Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China

Droplet manipulation plays a significant role in the fields of biomedical detection,microfluidics,and chemical ***,it still remains a great challenge to simultaneously achieve remote,selective,and in situ droplet manipulation on the same ***,Fe_(3)O_(4)nanoparticles were doped in a shape-memory polymer(SMP)to prepare a photothermal-responsive Fe_(3)O_(4)-SMP composite which showed remarkable near-infrared(NIR)light-triggered shape-memory *** micropillar array was constructed on such Fe_(3)O_(4)-SMP composite through femtosecond laser microfabrication and fluoroalkylsilane *** surface wettability of the as-prepared surface can transform from a low-adhesive sliding state to a high-adhesive pinning state as the micropillars are deformed by ***,the deformed micropillars can stand up and restore to their original morphology under remote NIR light irradiation,resulting in the reversible and repeatable recovery of the ultralow-adhesive *** such light-triggered wettability switching,the droplets pinning on the sample surface can be remotely,selectively,and in situ ***,the superhydrophobic Fe_(3)O_(4)-SMP surface is successfully applied in lossless liquid transfer,selective droplet release,and droplet-based *** as-fabricated superhydrophobic surfaces with NIR light-controlled reversible wettability will hold great promise in the fields of liquid manipulation,lab-on-a-chip,and microfluidics.

关键词： droplet manipulation superhydrophobicity shape-memory polymer femtosecond laser light responsive

Sodium Alginate/Carboxyl-Functionalized Graphene Composite Hydrogel Via Neodymium Ions Coordination

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Journal of Materials Science & Technology 2017年第8期33卷 821-826页

作者： Qianqian Huang Shunli Liu Kewen Li Imtiaz Hussain fang yao Guodong Fu School of Chemistry and Chemical Engineering Southeast UniversityNanjing 211189China

A facile method for the preparation of sodium alginate（SA）/carboxyl-functionalized graphene（G-COOH）composite hydrogel was developed. Based on the coordination ability of lanthanide ions to the carboxyl groups, a series of hydrogel derived from different ratios of SA and G-COOH was fabricated by neodymium（Nd3＋） ions coordination. A relatively uniform layered structure was recorded by SEM at the interior of SA/G-COOH hydrogel. Several parameters such as water content, swelling ratio（SR）, tensile test and solvent resistance were also investigated. The SA/G-COOH composite hydrogel showed excellent mechanical strength, and the tensile strength of SA/G-COOH composite hydrogel reaches 53.72 MPa at high water content. Due to the coordination ability of Nd3＋ ions, the hydrogel also exhibited an excellent solvent resistance and stability.

关键词： Carboxyl-functionalized graphene Sodium alginate Hydrogel Neodymium ions coordination Layered structure

Priming cancer cells for drug resistance： role of the fibroblast niche

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Frontiers in Biology 2014年第2期9卷 114-126页

作者： Wei Bin fang Min yao Nikki CHENG Department of Pathology and Laboratory Medicine University of Kansas Medical Center Kansas City KS 66160 USA

Conventional and targeted chemotherapies remain integral strategies to treat solid tumors. Despite the large number of anti-cancer drugs available, chemotherapy does not completely eradicate disease. Disease recurrence and the growth of drug resistant tumors remain significant problems in anti-cancer treatment. To develop more effective treatment strategies, it is important to understand the underlying cellular and molecular mechanisms of drug resistance. It is generally accepted that cancer cells do not function alone, but evolve through interactions with the surrounding tumor microenvironment. As key cellular components of the tumor microenvironment, fibroblasts regulate the growth and progression of many solid tumors. Emerging studies demonstrate that fibroblasts secrete a multitude of factors that enable cancer cells to become drug resistant. This review will explore how fibroblast secretion of soluble factors act on cancer cells to enhance cancer cell survival and cancer stem cell renewal, contributing to the development of drug resistant cancer.

关键词： fibroblasts tumor recurrence drag resistance cell survival stem cells tumor dormancy

Polypropylene/poly(butyl methacrylate) blends prepared by diffusion and subsequent polymerization of butyl methacrylate in isotactic polypropylene pellets

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Chinese Chemical Letters 2012年第6期23卷 753-756页

作者： Xue Rong yao fang Chen Zhao Xia Guo Jian Yu Key Laboratory of Advanced Materials （MOE） Department of Chemical Engineering Tsinghua University Beijing 100084 China

Polypropylene/poly（butyl methacrylate）（PP/PBMA） blends were prepared by diffusion and subseqtuent polymerization＇of butyl methacrylate （BMA） in commercial isotactic polypropylene （iPP） pellets. The diffusion kinetics, diametrical distribution of PBMA in a pellet and phase morphology of a typical PP/PBMA blend were investigated.

关键词： Polypropylene Poly(butyl methacrylate) Diffusion Blend

Exploratory space data analysis of spatial patterns of large-scale retail commercial facilities:The case of Gulou District,Nanjing,China

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Frontiers of Architectural Research 2021年第1期10卷 17-32页

作者： yao fang Jianyuan Mao Qinhua Liu Jinglin Huang College of Architecture Nanjins Tech UniversityNanjing 211816China College of Architecture and Urban Plonnins Tongji UniversityShanghai 200093China Nanjing Academy of Urban Layout&Design. LtdNanjing 210005China

This study uses methods,such as a nearest proximity index,nuclear density,spatial interpolation,buffering zone,and overlay analysis,based on an exploratory spatial data analysis *** focuses on a large commercial facility in which a mathematical analysis is conducted on its spatial *** the study,45 large-scale retail commercial facilities(LSRCFs)in the Gulou District,Nanjing,China,were chosen,and the spatial concentration,density,and structure of the LSRCFs in this area were *** additional factors,namely,population,transportation,and consumption,were examined to determine their impact on the spatial patterns of the ***,this study recommends a spatial layout for the future of the Gulou District according to the analysis results.

关键词： GIS Large-scale retail commercial facilities Nanjing Spatial patterns

Unusual Spherulitic Morphology of Poly(propylene fumarate)

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Chinese Journal of Polymer Science 2021年第4期39卷 493-500,I0007页

作者： Xiao-Yu Meng Yi Li Shu-fang yao Xue-Wei Wei Hai-Mu Ye Department of Materials Science and Engineering College of New Energy and MaterialsChina University of PetroleumBeijing 102249China

Spherulites are the most common crystalline morphology and thus the visual expression of crystal structures for *** diversified patterns have provided intuitive morphology probes for various crystallization behaviors,while the correlations between them are still needed to be *** this work,the complicated spherulitic morphology of poly(propylene fumarate)(PPF),which is sensitive to crystallization temperature,is *** melt,respectively,crystallizes into rough spherulites,regularly banded spherulites,and spherulites containing both two kinds of morphology at low,high,and mediate *** systematically assaying,it is clear that the growth axis along the radial direction changes from a-axis to b-axis as the crystallization temperature increases,which leads to the formation of unique crystallization-temperature-dependent *** on detailed characterization of Fourier transform infrared spectroscopy,the packing state of the specific hydrogen bonds of"C=C-H…O=C-C=C"in PPF crystal lattices is determined,and furthermore,the mechanism for temperature-dependent selection of growth axes for PPF spherulites in melt is reasonably speculated.

关键词： Spherulite Crystallization Growth axis Hydrogen bond