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Regulation of Light Energy Utilization and Distribution of Photosynthesis in Five Subtropical Woody Plants

Journal of Integrative Plant Biology 2007年第3期49卷 351-361页

作者： Nan Liu Chang-Lian Peng Zhi-Fang lin Gui-zhu lin Xiao-Ping Pan South China Botanical Garden the Chinese Academy of Sciences Guangdong Key Laboratory of Digital Botanical Garden Guangzhou 510650 China College of Life Sciences South China Normal University Guangzhou 510631 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China

The adaptations and responses of photosynthesis to long- and short-term growth light gradient treatments were investigated in five subtropical forest plants, namely Pinus massoniana Lamb., Schima superba Gardn. et Champ., Castanopsis flssa （Champ. ex Benth.） Rehd. et Wils., Acmena acuminatissima （BI.） Merr et Perry, and Cryptocarya concinna Hance. With diurnal changes in sunlight and air temperature, the de-epoxidation state and lutein content in the five woody plants under three light Intensities first increased and then decreased during the day. However, maximal photochemical efficiency （FvFm; where Fm is the maximum fluorescence yield and Fv Is variable fluorescence） and the photochemical quantum yields of photosystem （PS）Ⅱ （φPSⅡ） of the species examined changed in the opposite manner, with those in plants grown under 100% natural light changing the most. After long-term treatment （21 months）, anti-oxidant capacity （1,1-diphenyl-2-picrylhydrazyl radical （DPPH.）-scavenging capacity） and utilization of excitation energy showed differences in modulation by different light intensities. It was shown that A. acuminatissima and C. concinna, as dominant species in the late succession stage of a subtropical forest in Dinghu mountain, South China, were better able to adapt to different light environments. However, P. massonlana, the pioneer species of this forest, exhibited less adaptation to low light intensity and was definitely eliminated by the forest succession process.

关键词： adaptation chlorophyll fluorescence community succession light intensity subtropical forest

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Occurrence of Boerhaave's syndrome after diagnostic colonoscopy:what else can emergency physicians do?

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World Journal of Emergency Medicine 2023年第1期14卷 85-87页

作者： lin-lin zhu Xiu-he Lyu Tian-tian Lei Jin-lin Yang Department of General Practice General Practice Medical CenterWest China HospitalSichuan UniversityChengdu 610041China Department of Gastroenterology&Hepatology West China HospitalSichuan UniversityChengdu 610041China Sichuan University-Oxford University Huaxi Gastrointestinal Cancer Center West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

Dear editor,Boerhaave’s syndrome is a barogenic tear of the esophagus,typically at the gastroesophageal junction,caused by a sudden increase in intraluminal pressure in the distal esophagus.[1]In recent years,the number of Boerhaave’s syndrome cases has increased,and a growing proportion of clinicians have recognized this rare but life-threatening disease.

关键词： esophagus physician editor

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Mass Spectrometry-based Proteomics and Glycoproteomics in COVID-19 Biomarkers Identification:A Mini-review

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Journal of Analysis and Testing 2021年第4期5卷 298-313页

作者： Li Zhong lin zhu Zong-Wei Cai State Key Laboratory of Environmental and Biological Analysis Department of ChemistryHong Kong Baptist University224 Waterloo RoadKowloon TongHong Kong SARChina

The first corona-pandemic,coronavirus disease 2019(COVID-19)caused a huge health crisis and incalculable damage *** of how to cure the disease is urgently *** immune escaping mutants of the virus suggested that it may be potentially persistent in human society as a regular health threat as the flu ***,it is imperative to identify appropriate biomarkers to indicate pathological and physiological states,and more importantly,clinic *** are the performers of life functions,and their abundance and modification status can directly reflect the immune *** glycosylation serves a great impact in modulating protein *** use of both unmodified and glycosylated proteins as biomarkers has also been proved feasible in the studies of SARS,Zika virus,influenza,*** recent years,mass spectrometry-based glycoproteomics,as well as proteomics approaches,advanced significantly due to the evolution of mass *** focus on the current development of the mass spectrometry-based strategy for COVID-19 biomarkers’*** application of glycoproteomics approaches and challenges in biomarkers identification are also discussed.

关键词： COVID-19 SARS-CoV-2 Biomarker Proteomics Glycoproteomics

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Web Services interface of SSRF archive data analysis system

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Nuclear Science and Techniques 2007年第4期18卷 193-197页

作者： LI lin SHEN Liren zhu Qing WAN Tianmin Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China

Accelerator database stores various static parameters and real-time data of accelerator. SSRF (Shanghai Synchrotron Radiation Facility) adopts relational database to save the data. We developed a data retrieval system based on XML Web Services for accessing the archive data. It includes a bottom layer interface and an interface applicable for accelerator physics. Client samples exemplifying how to consume the interface are given. The users can browse, retrieve and plot data by the client samples. Also, we give a method to test its stability. The test result and performance are described.

关键词：网络服务接口数据库加速器静态参数

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Gold Nanoparticle-based Colorimetric Sensor for pH Sensing

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Chemical Research in Chinese Universities 2008年第5期24卷 537-540页

作者： zhu lin XUE Dong-hua WANG Zhen-xin School of Biological Engineering Changchun University of Technology Changehun 130012 P. R. China State Key Laboratory of Eleetroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China

We present a newly designed colorimetric sensor sensitive to pH value based on a gold nanocomposite composed of gold nanoparticles and pH-sensitive polymer{dodecylthioether end functionalized poly[2-（diethylamino） ethyl methacrylate], poly（DEAEMA）-DDT}. We have shown that this design can produce stable GNP precipitate under weakly basic condition（pH=7.5） and this precipitate can be dispersed in acidic solution（pH=4.0）, due to the 2-（diethylamino） ethyl methacrylate protonated by H＋. The precipitation-dispersion process is reversible and accompanied by distinct color change that are clearly visible to the naked eye. This development may have application in the controlled fabrication of reversible pH-sensitive nanostructures and/or devices.

关键词： Gold nanocomposite pH sensing Polymer ligand

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Investigation of hypersonic flows through a cavity with sweepback angle in near space using the DSMC method

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Chinese Physics B 2021年第7期30卷 311-323页

作者： Guangming Guo Hao Chen lin zhu Yixiang Bian College of Mechanical Engineering Yangzhou UniversityYangzhou 225127China

Near space has been paid more and more attentionin recent years due to its military application ***,flow characteristics of some fundamental configurations(e.g.,the cavity)in near space have rarely been investigated due to rarefied gas effects,which make the numerical simulation methods based on continuous flow hypothesis lose *** this work,the direct simulation Monte Carlo(DSMC),one of the most successful particle simulation methods in treating rarefied gas dynamics,is employed to explore flow characteristics of a hypersonic cavity with sweepback angle in near space by considering a variety of cases,such as the cavity at a wide range of altitudes 20-60 km,the cavity at freestream Mach numbers of 6-20,and the cavity with a sweepback angle of 30°-90°.By analyzing the simulation results,flow characteristics are obtained and meanwhile some interesting phenomena are also *** primary recirculation region,which occupies the most area of the cavity,causes pressure and temperature stratification due to rotational motion of fluid inside it,whereas the pressure and temperature in the secondary recirculation region,which is a small vortex and locates at the lower left corner of the cavity,change slightly due to low-speed movement of fluid inside *** the increase of altitude,both the primary and secondary recirculation regions contract greatly and it causes them to separate.A notable finding is that rotation direction of the secondary recirculation region would be reversed at a higher *** overall effect of increasing the Mach number is that the velocity,pressure,and temperature within the cavity increase *** maximum pressure nearby the trailing edge of the cavity decreases rapidly as the sweepback angle increases,whereas the influence of sweepback angle on velocity distribution and maximum temperature within the cavity is slight.

关键词： flow characteristics cavity with sweepback angle hypersonic flow near space DSMC

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Valuation and Hedging Strategy of Currency Options under Regime-Switching Jump-Diffusion Model

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Acta Mathematicae Applicatae Sinica 2017年第4期33卷 871-892页

作者： Shou-ting CHEN Xun-di DIAO Ai-lin zhu School of Mathematics and Physical Science Xuzhou Institute of Technology Xuzhou 221008 China Antai College of Economics & Management Shanghai Jiao Tong University Shanghai 200030 China Risk Management Department Bank of Suzhou Suzhou 215100 China

The main purpose of this thesis is in analyzing and empirically simulating risk minimizing European foreign exchange option pricing and hedging strategy when the spot foreign exchange rate is governed by a Markov-modulated jump-diffusion model. The domestic and foreign money market interest rates, the drift and the volatility of the exchange rate dynamics all depend on a continuous-time hidden Markov chain which can be interpreted as the states of a macro-economy. In this paper, we will provide a practical lognormal diffusion dynamic of the spot foreign exchange rate for market practitioners. We employing the minimal martingale measure to demonstrate a system of coupled partial-differential-integral equations satisfied by the currency option price and attain the corresponding hedging schemes and the residual risk. Numerical simulations of the double exponential jump diffusion regime-switching model are used to illustrate the different effects of the various parameters on currency option prices.

关键词： spot foreign exchange rate regime switching jump0diffusion processes minimal martingale mea-sure European currency options pricing and hedging strategy.

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Phase evolution of(K,Na)NbO_3 powder prepared by high temperature mixing under hydrothermal conditions

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Particuology 2010年第5期8卷 477-481页

作者： lin Bai Kongjun zhu Jinhao Qiu Hongli Ji Likui Su The Aeronautical Key Laboratory for Smart Materials and Structures Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

（Na, K）NbO3 （KNN） powders were successfully prepared by high temperature mixing method （HTMM） under hydrothermal conditions to study the effect of reaction time on the formation of KNN for three K＋/（K＋＋Na＋） ratios of 0.6, 0.7 and 0.8. The products were characterized by X-ray diffraction （XRD）, scanning electron microscope （SEM）, transmission electron microscopy （TEM） and selected area electron diffraction （SAED）, to show the change of phase and morphology of the as-prepared particles with the K＋/（K＋＋ Na＋） molar ratio in the solution. Pure Na-rich KNN monoclinic phase and pure K-rich KNN orthorhombic phase could be obtained quickly after mixing the solutions at high temperature when the K＋/（K＋＋Na＋） molar ratio was either 0.6 or 0.8. When the K＋/（K＋＋Na＋） molar ratio was 0.7, however, the K-rich KNN orthorhombic phase grain formed first, followed by the Na-rich KNN monoclinic phase grain, with the two phases coexisting in the final product.

关键词： (Na K)NbO3Hydrothermal conditionsHigh temperature mixing methodPhase evolution

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Surface nanocrystallization of Ti6AI4V induced by circulation rolling plastic deformation

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中国有色金属学会会刊：英文版 2004年第Z1期14卷 190-192页

作者： FAN Xin-min zhu lin HUANG Jie-wen Department of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China Department of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China Department of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China

A nanocrystallization surface layer was successfully obtained in a sample of Ti6Al4V. The microstructure features of the sample were characterized by using X-ray diffraction analysis(XRD), scanning electron microscopy(SEM) and transmission electron microscopy(TEM) observations. The average grain size in the top surface layer is about 10nm, and gradually increases with the distance from the surface increasing.

关键词： surface nanocrystallization microstructure grain refinement titanium alloy

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Effects of turbulence on carbon emission in shallow lakes

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Journal of Environmental Sciences 2018年第7期30卷 166-172页

作者： lin zhu Boqiang Qin Jian Zhou Bryce Van Dam Wenqing Shi Taihu Lake Laboratory Ecosystem Station State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and Limnology Chinese Academy of Sciences Institute of Marine Sciences University of North Carolina at Chapel Hill Center for Eco-Environmental Research Nanjing Hydraulics Research Institute

Turbulent mixing is enhanced in shallow lakes. As a result, exchanges across the air–water and sediment–water interfaces are increased, causing these systems to be large sources of greenhouse gases. This study investigated the effects of turbulence on carbon dioxide（CO2）and methane（CH4） emissions in shallow lakes using simulated mesocosm *** demonstrated that turbulence increased CO2 emissions, while simultaneously decreasing CH4 emissions by altering microbial processes. Under turbulent conditions, a greater fraction of organic carbon was recycled as CO2 instead of CH4, potentially reducing the net global warming effect because of the lower global warming potential of CO2 relative to CH4. The CH4/CO2 flux ratio was approximately 0.006 under turbulent conditions, but reached 0.078 in the control. The real-time quantitative PCR analysis indicated that methanogen abundance decreased and methanotroph abundance increased under turbulent conditions, inhibiting CH4 production and favoring the oxidation of CH4 to *** findings suggest that turbulence may play an important role in the global carbon cycle by limiting CH4 emissions, thereby reducing the net global warming effect of shallow lakes.

关键词： Turbulence Carbon dioxide Methane Methanogen Methanotroph

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