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CAUSAL ANALYSIS AND NUMEriCAL MODElinG OF THE INSHORE INTENSIFICATION OF SUPER TYPHOON “HATO”

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Journal of Tropical Meteorology 2019年第3期25卷 293-303页

作者： YU Xin ZHENG Teng-fei wan Qi-lin XIAO hui LIU Xian-tong wanG Ting Guangdong Provincial Meteorological Observatory/Guangdong Provincial Key Laboratory of Regional Numerical Weather Prediction CMAGuangzhou 510641 China Guangzhou Institute of Tropical and Marine Meteorology/Guangdong Provincial Key Laboratory of Regional Numerical Weather Prediction CMAGuangzhou 510641 China

This paper comprehensively analyzes the characteristics and cause of the inshore intensification of super typhoon 'Hato', the 13 th super typhoon in 2017. The aspects of typhoon structure, evolution of large-scale circulation and physical quantity field are analyzed using observation data from the Guangdong Automatic Station, Shenzhen Doppler Radar data, NCEP 1°×1° reanalysis data, NCEP 0.25°×0.25° sea surface temperature(SST) data, ***, in order to investigate the influence of SST change on the intensity of 'Hato', the WRF model and ECMWF 0.125°×0.125° reanalysis data are combined to conduct 3 sensitivity tests on'Hato'. The results show that the favorable conditions for inshore intensification of 'Hato'included the strengthening and westward extension of the subtropical high, continuous increase of low level moisture transport, an anomalous warm SST area north of 20°N in the South China Sea, an extreme divergence value in the northern South China Sea exceeding 6 ×10-5 s-1, and vertical environmental wind shear between 1.1 m/s-4.8 m/s. The intensity of'Hato'was very sensitive to changes in SST. When the SST rose or dropped by 2℃, the minimum central pressure of the typhoon changed by about 13 hPa or 11 hPa,respectively. SST indirectly influenced the intensity of the typhoon through affecting latent heat transport and sensible heat transport.

关键词： super typhoon "Hato" inshore intensification sea surface temperature(SST) sensitivity test

The Active Sites of the Reference Phase of SmVO_4 as Catalyst for Propane Oxidative Dehydrogenation

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Chemical Research in Chinese Universities 1998年第3期14卷 72-74页

作者： ZHANG Wei-de AU Chak-tong LI Ji-tao wan hui-lin Department of Chemistry and State Key Laboratory for Physical Chemistry of Solid Surface Xiamen UniversityXiamen361005 Department of Chemistry Hong Kong Baptist UniversityHong Kong

The active sites of samarium orthovanadate(SmVO 4) were studied by means of ESR, NO TPD and temperature programmed 18 O 2 isotope exchange(TPIE) methods. The results of ESR and NO TPD confirm the presence of V 4+ in the catalyst. The TPIE revealed that the 18 O 2 isotope exchange was carried out through a single exchange procedure. The V 4+ species associated with oxygen vacancies are the sites for O 2 activation.

关键词： Samarium orthovanadate Active site V 4+ species Oxidative dehydrogenation

Recent advances in ethanol gas sensors based on metal oxide semiconductor heterojunctions

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Rare Metals 2022年第6期41卷 1818-1842页

作者： ling-Yun Gai Run-Ping Lai Xian-hui Dong Xing Wu Qiao-Tong Luan Jue wang Hao-Feng lin Wen-Hao Ding Guang-Lei Wu wan-Feng Xie Big Data and Network Management Center Qingdao Agricultural UniversityQingdao 266109China School of Mechanical Electronic and Information Engineering China University of Mining and Technology-BeijingBeijing 10083China School of Material Science and Engineering State Key Laboratory of Bio-Fibers and Eco-TextilesQingdao UniversityQingdao 266071China School of Electronics and Information State Key Laboratory of Bio-Fibers and Eco-TextilesQingdao UniversityQingdao 266071China Shanghai Key Laboratory of Multidimensional Information Processing School of Communication and Electronic EngineeringEast China Normal UniversityShanghai 200241China

Metal oxide semiconductor heterojunctions(MOSHs)can enhance the performance of ethanol gas sen-sors *** gas sensors based on MOSHs are cost-effective and have excellent sensing response,good selectivity,fast response and recovery,long-term stability or repeatability,a low operating temperature,a facile fabrica-tion process,and versatile *** paper reviews the recent advances in gas sensors that are based on MOSHs and the advantages of using them to detect ethanol *** to the literature,compared with ethanol gas sen-sors that use single-component sensing materials,the MOSHs exhibit superior performance due to the synergy between the different components,which can amplify the reception and transduction components of the sensor *** the best of our knowledge,heterojunctions can be grouped into four main categories as metal oxide/metal oxide,metal oxide/metal sulfide,metal oxide/noble metal,and metal oxide/other materials,including rare-earth metals,g-C_(3)N_(4),and graphene,*** future trends and challenges that would be faced in the development of ethanol gas sensors based on MOSHs are discussed in ***,critical ideas and thinking regarding the future progress of MOSH-based gas sensors are presented.

关键词： Metal oxides Heterojunction Chemiresistori Ethanol sensor Synergistic behavior

THE PROMOTING EFFECT OF FLUOriDE TO OCM OCTALYST ZrO_2-BaF_2

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Chinese Chemical Letters 1994年第8期5卷 685-686页

作者： Zi Sheng CHAO Xiao Ping ZHOU Shui Ju wanG Fu Chun Xu hui lin wan K.R.tsai (Department of Chemistry, Xiamen University, Xiamen 361005)

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关键词： OCM THE PROMOTING EFFECT OF FLUOriDE TO OCM OCTALYST ZrO2-BaF2

Endoscopic mucosal resection-precutting vs conventional endoscopic mucosal resection for sessile colorectal polyps sized 10-20 mm

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World Journal of Gastroenterology 2022年第45期28卷 6397-6409页

作者： Xue-Qun Zhang Jian-Zhong Sang Lei Xu Xin-Li Mao Bo Li wan-lin Zhu Xiao-Yun Yang Chao-hui Yu Department of Gastroenterology The First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou 310003Zhejiang ProvinceChina Department of Gastroenterology Renmin Hospital of Yuyao CityYuyao 315499Zhejiang ProvinceChina Department of Gastroenterology Ningbo First HospitalNingbo 315010Zhejiang ProvinceChina Department of Gastroenterology Taizhou HospitalTaizhou 317099Zhejiang ProvinceChina Department of Gastroenterology The Central Hospital of Lishui CityLishui 323020Zhejiang ProvinceChina Department of Gastroenterology Jinhua Municipal Central HospitalJinhua 321099Zhejiang ProvinceChina

BACKGROUND The optimal method to remove sessile colorectal lesions sized 10-20 mm remains *** and incomplete resection are major limitations in current practice,such as endoscopic mucosal resection(EMR)and cold or hot snare ***,EMR with circumferential precutting(EMR-P)has emerged as an effective technique,but the quality of current evidence in comparative studies of conventional EMR(CEMR)and EMR-P is *** To investigate whether EMR-P is superior to CEMR in removing sessile colorectal *** This multicenter randomized controlled trial involved seven medical institutions in *** with colorectal polyps sized 10-20 mm were enrolled and randomly assigned to undergo EMR-P or ***-P was performed following submucosal injection,and a circumferential mucosa incision(precutting)was conducted using a snare *** outcomes included a comparison of the rates of en bloc and R0 resection,defined as one-piece resection and one-piece resection with histologically assessed clear margins,*** A total of 110 patients in the EMR-P group and 110 patients in the CEMR group were finally *** the per-protocol analysis,the proportion of en bloc resections was 94.3%[95%confidence interval(CI):88.2%-97.4%]in the EMR-P group and 86%(95%CI:78.2%-91.3%)in the CEMR group(P=0.041),while subgroup analysis showed that for lesions>15 mm,EMR-P also resulted in a higher en bloc resection rate(92.0%vs 58.8%P=0.029).The proportion of R0 resections was 81.1%(95%CI:72.6%-87.4%)in the EMR-P group and 76.6%(95%CI:68.8%-84.4%)in the CEMR group(P=0.521).The EMR-P group showed a longer median procedure time(6.4 vs 3.0 min;P15 mm in diameter,with higher R0

关键词： Colorectal polyps Medium size Polypectomy Endoscopic mucosal resection with circumferential precutting Conventional endoscopic mucosal resection

Preliminary Study on Drug Susceptibility Profile and Resistance Mechanisms to Macrolides of Clinical Isolates of Non-tuberculous Mycobacteria from China

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Biomedical and Environmental Sciences 2018年第4期31卷 290-299页

作者： LI Fu LI Gui Lian PANG hui LIU Hai Can XIAO Tong Yang LI Shuang Jun LUO Qiao JIANG Yi wanG Rui Bai wan Kang lin State Key Laboratory for Infectious Diseases Prevention and Control Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and Prevention Immunology Department Changzhi Medical College Key Laboratory of Laboratory Medicine Wenzhou Medical University

Objective Macrolide susceptibility and drug resistance mechanisms of clinical non-tuberculous mycobacteria（NTM） isolates were preliminarily investigated for more accurate diagnosis and treatment of the infection in China. Methods Four macrolides, including clarithromycin（CLAR）, azithromycin（AZM）, roxithromycin（ROX）, and erythromycin（ERY）, were used to test the drug susceptibility of 310 clinical NTM isolates from six provinces of China with the broth microdilution method. Two resistance mechanisms, 23 S r RNA and erm, were analyzed with nucleotide sequence analysis. Results Varied effectiveness of macrolides and species-specific resistance patterns were observed. Most Mycobacterium abscessus subsp. massiliense were susceptible and all M. fortuitum were highly resistant to macrolides. All the drugs, except for erythromycin, exhibited excellent activities against slow-growing mycobacteria, and drug resistance rates were below 22.2%. Only four highly resistant strains harbored 2,058/2,059 substitutions on rrl and none of other mutations were related to macrolide resistance. G2191 A and T2221 C on rrl were specific for the M. abscessus complex（MABC）. Seven sites, G2140 A, G2210 C, C2217 G, T2238 C, T2322 C, T2404 C, and A2406 G, were specifically carried by M. avium and M. intracellulare. Three sites, A2192 G, T2358 G, and A2636 G, were observed only in M. fortuitum and one site G2152 A was specific for M. gordonae. The genes erm（39） and erm（41） were detected in M. fortuitum and M. abscessus and inducible resistance was observed in relevant sequevar. Conclusion The susceptibility profile of macrolides against NTM was demonstrated. The well-known macrolide resistance mechanisms, 23 S r RNA and erm, failed to account for all resistant NTM isolates, and further studies are warranted to investigate macrolide resistance mechanisms in various NTM species.

关键词： Non-tuberculous mycobacteria Macrolide Drug resistance

饲料中添加褐藻寡糖对脊尾白虾免疫能力的影响

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江苏农业学报 2024年第4期40卷 698-710页

作者：史文军王学江李峰刘正一迟艳张志凯黎慧王李宝孙林万夕和秦松中国科学院烟台海岸带研究所山东烟台264003 江苏省海洋水产研究所江苏南通226007 中国科学院大学北京100049 五洲丰农业科技有限公司山东烟台264000

为了探究饲料中添加褐藻寡糖(AOS)对脊尾白虾(Exopalaemon carinicauda)免疫和抵抗二尖梅奇酵母(Metschnikowia bicuspidate)能力的影响,试验设置4个不同褐藻寡糖添加量处理,分别为0 mg/kg(CK)、500 mg/kg(T1)、1000 mg/kg(T2)和2000 mg/kg(T3),在相同条件下饲养60 d。结果表明:T2处理脊尾白虾的终末质量、总质量增长率和特定生长率极显著高于CK(P0.05)。表明饲料中添加1000 mg/kg褐藻寡糖可以有效提高脊尾白虾体内部分抗氧化和免疫相关基因的表达量,提高脊尾白虾的抗氧化水平和免疫能力。基因相对表达量检测结果与酶活性检测结果一致。攻毒试验中,T1、T2和T3处理脊尾白虾存活率在第3~5 d均极显著高于CK(P<0.01),但各处理脊尾白虾最终存活率和CK相同,表明褐藻寡糖对二尖梅奇酵母MQ2101具有一定的防控作用,但并不能提高感染后的最终存活率。

关键词：脊尾白虾褐藻寡糖二尖梅奇酵母免疫能力

Evaluation of Six Recombinant Proteins for Serological Diagnosis of Lyme Borreliosis in China

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Biomedical and Environmental Sciences 2016年第5期29卷 323-330页

作者： LIU Wei LIU hui Xin ZHANG lin HOU Xue Xia wan Kang lin HAO Qin State Key Laboratory for Infectious Diseases Prevention and Control National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing 102206 China Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Hangzhou 310003 Zhejiang China

Objective In this study, we evaluated the diagnostic efficiency of six recombinant proteins for the serodiagnosis of Lyme borreliosis （LB） and screened out the appropriate antigens to support the production of a Chinese clinical ELISA （enzyme-linked immunosorbent assay） kit for LB. Methods Six recombinant antigens, Fla B.g, OspC B.a, OspC B.g, P39 B.g, P83 B.g, and VlsE B.a, were used for ELISA to detect serum antibodies in LB, syphilis, and healthy controls. The ELISA results were used to generate receiver operating characteristic （ROC） curves, and the sensitivity and specificity of each protein was evaluated. All recombinant proteins were evaluated and screened by using logistic regression models. Results Two IgG （VISE and OspC B.g） and two IgM （OspC B.g and OspC B.a） antigens were left by the logistic regression model screened. VIsE had the highest specificity for syphilis samples in the IgG test （87.7%, P〈0.05）. OspC B.g had the highest diagnostic value in the IgM test （AUC=0.871）. Interactive effects between OspC B.a and Fla B.g could reduce the specificity of the ELISA. Conclusion Three recombinant antigens, OspC B.g, OspC B.a, and VisE B.a, were useful for ELISAs of LB. Additionally, the interaction between OspC B.a and Fla B.g should be examined in future research.

关键词： Lyme borreliosis Recombinant proteins Serological diagnosis Logistic regression ROC

Construction of a virtual lunar environment platform

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International Journal of Digital Earth 2013年第5期6卷 469-482页

作者： Min Chen hui lin Yongning Wen Li He Mingyuan Hu Institute of Space and Earth Information Science The Chinese University of Hong KongHong KongChina Key Laboratory of Virtual Geographic Environment(Ministry of Chinese Education) Nanjing Normal UniversityNanjingChina

Many of the world’s powerful and wealthy nations,including China,have devoted both large amounts of funding and considerable promotion to lunar research and *** launch of Chinese Chang’e-1 satellite and the construction of the scientific observation data platform created a favourable opportunity for research into the lunar geometrical,physical and chemical *** on this background,a Wide Area Network(wan)based virtual lunar environment was constructed for observation data sharing and further *** systematic architecture and framework were introduced and then strategies of mass data(*** digital elevation model,lunar digital orthophoto map and typical thematic lunar data)organisation,integration,management and scheduling were then set up to achieve the 3D visualisation of typical lunar geomorphic ***,the integration method of 3D lunar data and the process model of impact craters were studied;thus,the whole lunar and celestial collision process could be dynamically *** results indicate that the wan-based virtual lunar platform can be used effectively for public information sharing,scientific exploration and further to promote the development of deep space exploration in China.

关键词： virtual lunar environment Chang’e-1 satellite platform construction digital earth