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Journal of Meteorological Research 2019年第5期33卷 895-904页

作者： Binglan WANG Zhiqiang HE lili song Wenchao CHEN Beijing Jiutian Weather Technology Co. Ltd.Beijing 100081 Public Meteorological Service Center China Meteorological AdministrationBeijing 100081 North China Regional Meteorological Center Civil Aviation Administration of ChinaBeijing 100621 Guangdong Meteorological Disaster Prevention Technology Service Center Guangzhou 510080

In view of the absence or insufficiency of tropical cyclone(TC) turbulence parameters in current design standards of wind turbines, in this paper, TC turbulence parameter models with roughness length involved are developed based on six landfall TCs observed from meteorological towers located on various underlying surfaces, so as to provide references for the wind turbine design under TC conditions. Firstly, the roughness length values are examined in order to reduce the effect on turbulence parameters of the various underlying surfaces. On this basis, the reference turbulence intensity is normalized by the roughness length. The related turbulence parameters are parameterized, including the turbulence standard deviation and the turbulence spectrum;and the turbulence parameters available under TC conditions for turbulence turbine design are presented finally. Comparisons of the wind parameter models presented in this paper with those used in current turbine design standards suggest that the former can represent TC characteristics more accurately. In order to withstand TCs, we suggest that the turbulence parameter models recommended in this paper be included in future wind turbine design standards under TC conditions.

关键词： tropical cyclone turbulence parameter models wind turbine

Basic Catalytic Performance of Amino and Acylamide Functionalized Metal-organic Framework in the Synthesis of Chloropropene Carbonate from CO2 Under Atmospheric Pressure

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Chemical Research in Chinese Universities 2016年第5期32卷 838-842页

作者： song lili CHEN Chao CHEN Xiangbin ZHANG Ning Institute of Applied Chemistry College of Chemistry Nanchang University Nanchang 330031 P. R. China

In this work, a metal-organic framework with free standing basic groups（e, g., amino and acylamide groups） decorated in the pore wall was utilized to catalyze the CO2 cycloaddition reaction and its basic properties were tested in Knoevenagel condensation reactions. The results reveal that the metal-organic frarnework（MOF） material has excellent catalytic activity and high repeatability for the synthesis of chloropropene carbonate from CO2 and epichlorohydrin with no co-catalyst under mild reaction conditions, suggesting that it is a promising heteroge- neous catalyst for CO2 cycloaddition reaction.

关键词： Metal-organic framework Heterogeneous catalysis C02 Chloropropene carbonate

Sequential Speciation Analysis of Heavy Metals in Drinking Water Pipe Scales by Mass Spectrometry

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Chemical Research in Chinese Universities 2022年第3期38卷 774-781页

作者： song lili LI Hui LI Ting XU Jiaquan CHEN Huanwen Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation East China University of TechnologyNanchang330013P.R.China

An electrochemical mass spectrometry technique was developed based on a homemade analytical device for sequential analysis of the heavy metals with various speciations in the *** speciations(e.g.,water-soluble speciation,organic speciation,indissoluble speciation and elemental speciation)of heavy metals are sequentially extracted by H_(2)O,CH_(3)OH,EDTA-2Na and electrolysis for online electrospray ionization mass spectrometry(ESI-MS)*** method takes significant advantages,such as requiring no tedious offline sample pretreatment,high speed of analysis(20 min),high throughput(multi-metals),good sensitivity(0.5µg/L)and rich chemical information(four speciations).As a result,the rapid comprehensive characterization of four speciations of Pb,Ni,Cu,Zn,Fe,Ba,Mn,Cr and Ca in water pipe scales has been qualitatively *** demonstrated that the present method is a powerful tool for the effective assessment of potential hazards in drinking water,which provides a new analytical idea for evaluating water quality.

关键词： Drinking water pipe scale Heavy metal speciation analysis Electrochemical-mass spectrometry Sequential ionization

Rapid analysis of metal ions and organic compounds in strong acidic solutions by nano-ESI mass spectrometry

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Chinese Chemical Letters 2024年第2期35卷 516-520页

作者： Jiaquan Xu Ting Li Zhendong Yu lili song Xiu-Xiu Xu Hui Li Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation East China University of TechnologyNanchang 330013China Department of Rehabilitation Medicine The First Affiliated Hospital of Nanchang UniversityNanchang 330006China

Rapid analysis of metal ions and organic compounds in strong acidic solutions is of sustainable interest in multiple ***,complicated and time-consuming pretreatments are always required for MS analysis of the compounds in strong acidic ***,it will result in a weak signal and cause serious damage to the mass ***,a simple method inherited from nano-ESI MS was developed for rapid analysis of strong acidic ***(nL)strong acidic solution was first loaded in the nano-ESI emitter,followed by evaporation to remove the H+and leave the analytes on the wall of the nano-ESI *** evaporation process can be completed within 1 min because of the extremely tiny volume(≤1 nL)of the loaded ***,the dried analytes on the wall of the nano-ESI emitter were redissolved by loading a new solvent,followed by nano-ESI MS *** using this method,metal ions and organic compounds in the strong acidic solution can be detected with low sample consumption(1 nL),high speed(90%).Proof-of-concept applications of the present method have been successfully achieved for the analysis of gastric juice(pH of the sample=1),monitoring reaction catalyzed by strong acid(pH of the system=0),and micro-area analysis of ores(pH of the extraction solvent=0),showing great application potential in multiple fields.

关键词： Strong acidic solutions Nano-ESI MS Rapid analysis Reaction monitoring Micro-area analysis Gastric juice analysis

Preparation and photocatalytic activity of PANI/TiO_2 composite film

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Rare Metals 2007年第1期26卷 1-7页

作者： GAO Jinzhang LI Shengying YANG Wu ZHAO Guohu BO lili song Li College of Chemistry and Chemical Engineering Northwest Normal University Gansu Key Lab of Polymer Materials Lanzhou 730070 China

A PANI/TiO2 composite film deposited on the glass surface was successfully prepared using sol-gel dip-coating technique and chemical oxidation method. The film was characterized using XRD, AFM, and UV. The result showed that the TiO2 film consists of both cuboid-shaped and anatase-phased TiO2 nanoparticles. The average grain size of TiO2 in the film was approximately 20 nm. After coating with PANI, the particle was changed into irregular spherical-shaped and the size was increased up to approximately 35 nm in diameter. UV-Vis spectroscopy analysis indicated that the coating of TiO2 with PANI would result in an enhancement of photocatalytic efficiency and an extension of the photoresponse of TiO2. The band gap of the PANI/TiO2 film was 3.18 eV. The photocatalytic property of the film was evaluated by the degradation of rhodamine-B. It was found that 67.1% and 83.2% of rhodamine-B could be degraded under sunlight and UV irradiation within 120 min using the PANI/TiO2 composite t-tim as photocatalyst.

关键词： PANI/TiO2 film sol-gel method chemical oxidation method photocatalysis rhodamine-B

Hi-TOM: a platform for high-throughput tracking of mutations induced by CRISPR/Cas systems

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Science China(Life Sciences) 2019年第1期62卷 1-7页

作者： Qing Liu Chun Wang Xiaozhen Jiao Huawei Zhang lili song Yanxin Li Caixia Gao Kejian Wang State Key Laboratory of Rice Biology China National Rice Research Institute Chinese Academy of Agricultural Sciences State Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental Biology Chinese Academy of Sciences Pediatric Translational Medicine Institute Shanghai Children's Medical Center School of Medicine Shanghai Jiao Tong University

The CRISPR/Cas system has been extensively applied to make precise genetic modifications in various organisms. Despite its importance and widespread use, large-scale mutation screening remains time-consuming, labour-intensive and costly. Here, we developed Hi-TOM(available at http://***/hi-tom/), an online tool to track the mutations with precise percentage for multiple samples and multiple target sites. We also described a corresponding next-generation sequencing(NGS) library construction strategy by fixing the bridge sequences and barcoding primers. Analysis of the samples from rice, hexaploid wheat and human cells reveals that the Hi-TOM tool has high reliability and sensitivity in tracking various mutations, especially complex chimeric mutations frequently induced by genome editing. Hi-TOM does not require special design of barcode primers,cumbersome parameter configuration or additional data analysis. Thus, the streamlined NGS library construction and comprehensive result output make Hi-TOM particularly suitable for high-throughput identification of all types of mutations induced by CRISPR/Cas systems.

关键词： CRISPR/Cas genome editing mutation identification Hi-TOM

Analysis on gust factor of tropical cyclone strong wind over different underlying surfaces

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Science China(Technological Sciences) 2011年第11期54卷 2576-2586页

作者： CHEN WenChao song lili ZHI ShiQun HUANG HaoHui QIN Peng Guangdong Climate Centre Guangzhou 510080 China Guangzhou Institute of Tropical and Marine Meteorology CMA Guangzhou 510080 China Public Meteorological Service Centre CMA Beijing 100081 China

Based on one year gradient wind data and the wind data of a strong typhoon observed by three meteorological towers located on the coast and at the inshore sea,the underlying surfaces of the meteorological towers were classified and the roughness lengths were calculated *** the basis of strong wind characteristic representative assessment and sample selection on the wind data of strong typhoon Hagupit,the gust factor variation characteristics of tropical cyclones under different underlying surfaces were *** observed fact and variation rule were found as follows:1) The roughness lengths under neutral atmospheric condition which were calculated using logarithmic wind profile fitting based on the observation data can describe the slight change of the underlying surface objectively.2) The gust factor of strong typhoon wind didn't have variation trends with wind *** the variation amplitude of the gust factor was rather large over rough underlying surface which had pronounced effect on the numerical design of structural engineering.3) The variation of the gust factor with height satisfied power law or logarithmic *** power law fitting was more suitable for smooth underlying surface while the logarithmic fitting was better over rough underlying surface.4) The observation data also suggested that the relationship between gust factor and roughness length can be described by power or linear equation.5) The gust factor observed in this typhoon case was different from the gust factor recommended by WMO:The gust factor of the offshore wind came from rough underlying surface was higher than the value recommended by WMO while the gust factor of the onshore wind came from smooth underlying surface is less than the WMO recommended value.

关键词： tropical cyclone roughness length of the underlying surface gust factor

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Progress and Prospect of Geophysical Research on Underground Gas Storage: A Case Study of Hutubi Gas Storage,Xinjiang,China

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Earthquake Research in China 2020年第2期34卷 187-209页

作者： ZHANG Bo song lili JI Zhanbo WANG Baoshan WU Zhide Key Laboratory of Seismic Observation and Geophysical Imaging Institute of GeophysicsChina Earthquake AdministrationBeijing 100081China School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China Research Institute of Petroleum Exploration and Development Langfang 065007China

Hutubi Underground Gas Storage(UGS) is an important part of China’s West-East Gas Pipeline Project. Its production safety also plays an essential role in ensuring peaking,emergency and reserve of natural gas in the region. Geophysical observations and research conducted on Hutubi UGS provide significant support for understanding the operation status and ensuring safe operation of the UGS. Since the beginning of the construction of Hutubi UGS and its production,several works including gas field observation experiments,rock experiments and numerical simulations have been conducted. Preliminary observational results show that during the initial operation stage of the UGS,the "breathing phenomenon"in caprock and microseismicity in the vicinity are closely related to the operation of the gas storage. However,rock experiments and numerical simulations show that these activities may gradually weaken with the multi-cycle operation of gas storage. The impact of the operation of Hutubi UGS in the surrounding areas is gradually weakening,and its operation tends to be stable. Implementing long-term and multi-method geophysical observations is able to provide us a better understanding of the relationship between the operation of UGS and regional geological hazards. On this basis,the corresponding geomechanical model can be established to form an effective risk management mechanism for gas storage operation. Thus,it is of great significance to understand its operation status,monitor storage conditions,guide production and operation,and ultimately guarantee the safe production of the gas storage.

关键词： Hutubi Underground Gas Storage Deformation Seismicity Rock experiment

Variable Separation and Exact Solutions for the Kadomtsev-Petviashvili Equation

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Advances in Pure Mathematics 2015年第3期5卷 121-126页

作者： lili song Yadong Shang School of Science Southwest University of Science and Technology Mianyang China School of Mathematics and Information Sciences Guangzhou University Guangzhou China

In the paper, we will discuss the Kadomtsev-Petviashvili Equation which is used to model shallow-water waves with weakly non-linear restoring forces and is also used to model waves in ferromagnetic media by employing the method of variable separation. Abundant exact solutions including global smooth solutions and local blow up solutions are obtained. These solutions would contribute to studying the behavior and blow up properties of the solution of the Kadomtsev-Petviashvili Equation.

关键词： Kadomtsev-Petviashvili Equation Method of Variable Separation Global Smooth Solution Local Blow up Solution

Research Progress of Cellulase

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Asian Agricultural Research 2019年第3期11卷 74-77,82页

作者： lili song Xinxin LIU College of Life Science Cangzhou Normal University

Cellulase is a complex enzyme that can decompose cellulose into glucose,and it could effectively treat cellulose waste. In this paper,it aims to explore development status and research progress of cellulase,and introduce concept and action mechanism of cellulase,research situation of cellulase in molecular aspect,application of cellulase,and development of cellulase is also prospected.

关键词： Cellulase Research progress Molecular modification