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Extended-Range Precursors for Summer Consecutive Extreme Rainfall in the Yangtze River Valley Related to Intraseasonal Variations of the Pacific-Japan Teleconnection

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Journal of Meteorological Research 2023年第3期37卷 324-340页

作者： Junming CHEN lan xia Junmei LYU Lun LI State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological Administration(CMA)Beijing 100081 Department of Atmospheric Sciences Yunnan UniversityKunming 650500 CMA Xiong’an Atmospheric Boundary Layer Key Laboratory Xiong’an New Area 071799 Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD) Nanjing University of Information Science&TechnologyNanjing 210044

In summer,the Yangtze River valley(YRV)in central–eastern China frequently suffers consecutive extreme rainfall(CER)events,causing floods and huge *** the daily timescale,our previous study has shown that the Pacific–Japan(PJ)teleconnection is related to the CER events over the YRV,and is a source for long-term(lead time of about 10 days)forecasts of CER *** facilitate extended-range(lead time of about 20 days)prediction of CER,in the present study,we use the band-pass filter for the PJ teleconnection to keep only the prolonged atmospheric circulation information at the intraseasonal timescale and try to identify more advanced precursors for the CER events over the *** spectrum analysis was implemented on 9-day sliding mean of the precipitation *** is found that summer precipitation in YRV has significant 10–40-day oscillations,and the CER events over the YRV are affected by the intraseasonal oscillation(ISO)of the PJ *** the ISO of the PJ teleconnection enters its positive phase,it is favorable for CER events to *** diagnoses and model experiments demonstrate that the ISO of the PJ teleconnection is attributed to the intraseasonal convective activities and diabatic heating around the Philippines,which generate significant northward energy dispersion and propagation of Rossby waves up to 16 days prior to occurrences of the CER events in the *** ISO of the PJ teleconnection and the convective activities in the tropical South Asia provide significant and earlier precursors for extended-range forecasts of the CER events along the YRV.

关键词： consecutive extreme rainfall intraseasonal oscillation Pacific-Japan teleconnection convective activities

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Review on modification routes for SnO_(x)-based anodes for Li storage:morphological structure tuning and phase structure design

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Rare Metals 2023年第9期42卷 2840-2867页

作者： Yu Zheng Xue-xia lan Xing-Yu Xiong Bin Yuan Ren-Zong Hu School of Materials Science and Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou510640China

Fascinating with high specific capacity and moderate lithiation potential,SnO_(x)-based materials have been intensively investigated as one of the most promising anodes for lithium-ion ***,due to poor cycling stability,sluggish reaction kinetics,and limited electrochemical reaction reversibility,the development of SnO_(x)-based anodes has been *** the current preparation and modification routes for SnO_(x)-based anodes lack direct and specific ***,modification routes for SnO_(x)-based anodes have been ***,to provide more direct instructions,the tuning routes of morphological structure for SnO_(x)-based electrodes(including slurry-based and self-supported)have been thoroughly discussed from the preparation ***,according to the properties of SnO_(x)-based anodes,the phase structure design ideas have also been properly classified and organized for addressing chemical reaction kinetics or thermodynamic ***,for future-oriented studies,new insights into the development and commercialization prospects of SnO_(x)-based anodes are also *** review,with comprehensive information on SnO_(x)-based anodes,aims to bring more specific guidance and valuable inspiration for peer researchers who are promoting the application of SnO_(x)-based materials for energy conversion and storage devices.

关键词： Lithium-ion battery(LIB) SnO_(x)-based anodes Reaction kinetics Morphological structure tuning Phase structure design

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Simultaneous anaerobic-aerobic biodegradation of halogenated phenolic compound under oxygen-limited conditions

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Journal of Environmental Sciences 2005年第5期17卷 873-875页

作者： CHEN Yuan-cai lan Hui-xia ZHAN Huai-yu FU Shi-yu State Key Laboratory of Pulp and Paper Engineering South China University of Technology Guangzhou 510641 China Laboratory of Cellulose and Liguocellulosics Chemistry Chinese Academy of Sciences Guangzhou 510650 China

The successful application of co-immobilized aerobic-anaerobic biomass under limited aeration in wastewater treatment systems would eliminate the problems associated with the intermediates mono-chlorophenol（MCP） and di-chlorophenol（DCP） accumulations. With low initial pentachlorophenol（PCP） concentration, all PCP could be completely removed under oxygen-limited strict anaerobic conditions, and the removal efficiencies with different initial headspace oxygen percentage（IHOP） were not obviously different from each other. While at high initial PCP concentration, under strictly anaerobic conditions PCP and their intermediates were clearly higher than that under other conditions, and produced obvious accumulation, the highest PCP reduction was achieved by the system receiving 30 IHOP, oxygen-limited system also exhibited lower residual TOC concentration and lower concentration of metabolic intermediates MCP and DCP. These results suggested that under strictly anaerobic condition the reductive dechlorination of low chlorinated compounds became rate limiting in the reductive dechlorination pathway, less chlorinated compounds be more amenable to aerobic degradation, and the aerobes of outer layers could function under limited oxygen. The co-immobilized aerobic-anaerobic biomass for methanogenesis under limited-aeration for chlorophenol degradation might be an attractive and efficient alternative for the sequential anaerobic/aerobic system to achieve mineralization of a broad range of recalcitrance highly chlorinated organics and low final TOC concentrations.

关键词： PCP oxygen-limited immobilized cellr

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On the measurement of slip length for liquid flow over super-hydrophobic surface

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Chinese Science Bulletin 2009年第24期54卷 4560-4565页

作者： LI Jian ZHOU Ming CAI lan YE xia YUAN Run Center for Photon Manufacturing Science and Technology Jiangsu University Zhenjiang 212013 China

To design a surface with large slip or larger drag reduction is a pop issue in the fields of liquid transporting and body swimming. In this context, it is a crucial problem to measure the slip length for these surfaces. Here we propose a novel method by using rheometer for this objective. This method is implemented by designing the distribution of the super-hydrophobic area on the sample. Using this method, a slip length of 40 μm for 70 wt% glycerin flow over a super-hydrophobic surface with stripe structure (the period, width and height of ridges are 150 μm, 40 μm and 65 μm, respectively) is measured. The result shows that the slip length measured using this method is in good agreement with former results measured by other methods. This method is fit for measuring the slip length of super-hydrophobic surface whose structure ranges from microto nanoscale.

关键词：疏水表面长度测量流量测量滑移液体条纹结构纳米尺度微米

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QTL Mapping for Adult Plant Resistance to Powdery Mildew in Italian Wheat cv. Strampelli

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Journal of Integrative Agriculture 2013年第5期12卷 756-764页

作者： Asad Muhammad Azeem BAI Bin lan Cai-xia YAN Jun xia xian-chun ZHANG Yong HE Zhong-hu National Wheat Improvement Center/National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences Chinese Academy of Agricultural Sciences(CAAS) Cotton Research Institute Chinese Academy of Agricultural Sciences(CAAS) International Maize and Wheat Improvement Center(CIMMYT) China Office

The Italian wheat cv. Strampelli displays high resistance to powdery mildew caused by Blumeria graminis f. sp. tritici. The objective of this study was to map quantitative trait loci （QTLs） for resistance to powdery mildew in a population of 249 F2：3 lines from Strampelli/Huixianhong. Adult plant powdery mildew tests were conducted over 2 yr in Beijing and 1 yr in Anyang and simple sequence repeat （SSR） markers were used for genotyping. QTLs ***-3BS, ***-5BL. 1, and ***-7DS were consistent across environments whereas, ***-2BS. 1 found in two environments, explained 0.4-1.6, 5.5-6.9, 27.1-34.5, and 1.0-3.5% of the phenotypic variation respectively. ***-7DS corresponded to the genomic location of Pm38/Lr34/Yr18. ***-4BL was identified in Anyang 2010 and Beijing 2011, accounting for 1.9-3.5% of phenotypic variation. ***-2BS. 1 and ***-5BL. 1 contributed by Strampelli and ***-3BS by Huixianhong, seem to be new QTL for powdery mildew resistance. ***-4BL, ***-5BL.3, and ***-7DS contributed by Strampelli appeared to be in the same genomic regions as those mapped previously for stripe rust resistance in the same population, indicating that these loci conferred resistance to both stripe rust and powdery mildew. Strampelli could be a valuable genetic resource for improving durable resistance to both powdery mildew and stripe rust in wheat.

关键词： QTL analysis SSR markers Blumeria graminis durable resistance Triticum aestivum L.

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Ultrasonic vibration assisted tungsten inert gas welding of dissimilar metals 316L and L415

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International Journal of Minerals,Metallurgy and Materials 2020年第7期27卷 943-953页

作者： Hong-xia lan Xiu-fang Gong Sen-feng Zhang Liang Wang Bin Wang Li-ping Nie School of New Energy and Materials Southwest Petroleum UniversityChengdu 610500China State Key Laboratory of Long-life High Temperature Materials Dong Fang Turbine Co.Ltd.Deyang 618000China China National Erzhong Group Deyang Wanhang Die Forging Co. Ltd.Deyang 618000China School of Engineering Southwest Petroleum UniversityNanchong 637800China

Ultrasonic vibration assisted tungsten inert gas welding was applied to joining stainless steel 316 L and low alloy high strength steel *** effect of ultrasonic vibration on the microstructure and mechanical properties of a dissimilar metal welded joint of 316 L and L415 was systematically *** microstructures of both heat affected zones of L415 and weld metal were substantially refined,and the clusters ofδferrite in traditional tungsten inert gas(TIG)weld were changed to a dispersive distribution via the ultrasonic *** ultrasonic vibration promoted the uniform distribution of elements and decreased the micro-segregation tendency in the *** the application of ultrasonic vibration,the average tensile strength and elongation of the joint was improved from 613 to 650 MPa and from 16.15%to31.54%,*** content ofΣ3 grain boundaries around the fusion line zone is higher and the distribution is more uniform in the ultrasonic vibration assisted welded joint compared with the traditional one,indicating an excellent weld metal crack resistance.

关键词： ultrasonic vibration dissimilar metal welding microstructure mechanical properties micro-segregation electron backscatter diffraction

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Expressing an (E)-β-farnesene synthase in the chloroplast of tobacco affects the preference of green peach aphid and its parasitoid

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Journal of Integrative Plant Biology 2015年第9期57卷 770-782页

作者： Gen-Ping Wang Xiu-Dao Yu Jia Fan Cheng-She Wang lan-Qin xia College of Agronomy Northwest A&F University/State Key Laboratory of Crop Stress Biology in Arid Areas Institute of Crop Sciences the Chinese Academy of Agricultural Sciences (CAAS) School of Life Science and Technology Nanyang Normal University Institute of Crop Protection the Chinese Academy of Agricultural Sciences (CAAS)

(E)-b-Farnesene (EbF) synthase catalyses the production of EbF, which for many aphids is the main or only component of the alarm pheromone causing the repellence of aphids and also functions as a kairomone for aphids’ natural enemies. Many plants possess EbF synthase genes and can release EbF to repel aphids. In order to effectively recruit the plant-derived EbF synthase genes for aphid control, by using chloroplast transit peptide (CTP) of the small subunit of Rubisco (rbcS) from wheat (Triticum aestivum L.), we targeted AabFS1, an EbF synthase gene from sweet wormwood (Artemisia annua L.), to the chloroplast of tobacco to generate CTP t AabFS1 transgenic lines. The CTP t AabFS1 transgenic tobacco plants could emit EbF at a level up to 19.25 ng/day per g fresh tissues, 4–12 fold higher than the AabFS1 transgenic lines without chloroplast targeting. Furthermore, aphid/parasitoid behavioral bio-assays demonstrated that the CTP t AabFS1 transgenic tobacco showed enhanced repellence to green peach aphid (Myzus persicae) and attracted response of its parasitoid Diaeretiella rapae, thus affecting aphid infestation at two trophic levels. These data suggest that the chloroplast is an ideal subcellular compartment for metabolic engineering of plant-derived EbF synthase genes to generate a novel type of transgenic plant emitting an alarm pheromone for aphid control.

关键词： Aphid chloroplast Diaeretiella rapae (E)b-farnesene synthase Myzus persicae tobacco

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Evaluation of the clinical effects of atropine in combination with remifentanil in children undergoing surgery for acute appendicitis

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World Journal of Gastrointestinal Surgery 2024年第7期16卷 2065-2072页

作者： Yu-Juan Li Yong-Yan Chen xia-lan Lin Wei-Zhi Zhang Department of Anesthesiology Shanxi Provincial Children’s HospitalTaiyuan 030013Shanxi ProvinceChina

BACKGROUND Acute appendicitis(AA)is the most common cause of acute abdomen in *** significantly influences the surgical treatment of AA in children,making the scientific and effective selection of anesthetics *** To assess the clinical effect of atropine(ATR)in combination with remifentanil(REMI)in children undergoing surgery for *** In total,108 cases of pediatric AA treated between May 2020 and May 2023 were selected,58 of which received ATR+REMI[research group(RG)]and 50 who received REMI[control group(CG)].Comparative analyses were conducted on the time to loss of eyelash reflex,pain resolution time,recovery time from anesthesia,incidence of adverse events(AEs;respiratory depression,hypoxemia,bradycardia,nausea and vomiting,and hypotension),intraoperative responses(head shaking,limb activity,orientation recovery,safe departure time from the operating room),hemodynamic parameters[oxygen saturation(SPO2),mean arterial pressure,heart rate,and respiratory rate],postoperative sedation score(Ramsay score),and pain level[the Face,Legs,Activity,Cry,Consolability(FLACC)Behavioral Scale].RESULTS Compared with the CG,the RG showed significantly shorter time to loss of eyelash reflex,pain resolution,recovery from anesthesia,and safe departure from the operating ***,the incidence rates of overall AEs(head shaking,limb activity,etc.)were lower,and influences on intraoperative hemodynamic parameters and stress response indexes were *** Ramsay score at 30 min after extubation and the FLACC score at 60 min after extubation were significantly lower in the RG than in the *** ATR+REMI is superior to REMI alone in children undergoing AA surgery,with a lower incidence of AEs,fewer influences on hemodynamics and stress responses,and better post-anesthesia recovery.

关键词： Atropine Remifentanil Pediatric acute appendicitis Surgery Clinical efficacy

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Functional analyses of an E3 ligase gene AIP2 from wheat in Arabidopsis revealed its roles in seed germination and pre‐harvest sprouting

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Journal of Integrative Plant Biology 2014年第5期56卷 480-491页

作者： Dong-Yao Gao Zhao-Shi Xu Yi He Yong-Wei Sun You-Zhi Ma lan-Qin xia Institute of Crop Sciences/The National Key Facility for Crop Gene Resources and Genetic Improvement the Chinese Academy of Agricultural Sciences (CAAS) Agricultural and Sideline Base Unit 65426 of the People’s Liberation Army

Pre‐harvest sprouting（PHS） seriously affects wheat yield and quality of the grain. ABI3 is a key factor in the activation of seed development and repression of germination in Arabidopsis. An ABI3‐interacting protein（AIP2） could polyubiquitinate ABI3, impair seed dormancy and promote seed germination in Arabidopsis. In this study,two wheat AIP2 genes, TaAIP2A and TaAIP2B, were *** localization assay and yeast two‐hybrid analysis revealed that TaAIP2A and TaAIP2B may function through interaction with wheat Viviporous‐1（TaVp1）. The transcripts TaAIP2A and TaAIP2B were more abundant in wheat PHS susceptible cultivars than that of resistant ones, and decreased gradually following seed development. Expression of TaAIP2A and TaAIP2B in Arabidopsis aip2‐1 mutant lines resulted in earlier flowering, promotion of seed germination,and reduced ABA sensitivity, respectively, somehow mimicking the phenotype of the wild type, with TaAIP2B having a stronger role in these aspects. Furthermore, the expression ofupstream genes ABI1 and ABI2 were upregulated, whereas that of downstream genes ABI3 and ABI5 were downregulated in both TaAIP2A and TaAIP2B complemented lines upon ABA treatment. These results suggested that wheat AIP2s could negatively regulate the ABA signaling pathway and play important roles in seed germination, and thus wheat PHS resistance finally.

关键词： ABA responsiveness AIP2 Arabidopsis E3 ligase functional analysis pre‐harvest sprouting Triticum aestivum L

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Ex vivo expansion of regulatory T cells for clinical applications against graft-versus-host disease in allogeneic hematopoietic stem cell transplantation

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Chinese Medical Journal 2013年第23期126卷 4575-4582页

作者： ZHANG lan-fang xia Chang-qing Department of Hematology Xuanwu Hospital Capital Medical University Beijing 100053 China

Objective To review the characteristics of regulatory T cells （Tregs） and ex vivo expansion of Tregs for treatment of graftversus-host disease （GVHD）.Data sources The data used in this review were retrieved from PubMed （1970-2013）.The terms ＂ex vivo expansion＂,＂regulatory T cell＂,and ＂graft-versus-host disease＂ were used for literature *** selection The publications about the characteristics of Tregs,ex vivo expansion of Tregs and clinical applications of Tregs against GVHD were identified,retrieved and *** Tregs can be classified as natural Tregs （nTregs） and induced Tregs （iTregs）.Both subsets share most Treg *** their immunosuppressive property,Tregs have been tested for their capability of preventing *** bottleneck of Treg therapy is the limited numbers of naturally existing *** solve this problem,ex vivo expansion of nTregs or iTregs has been *** initial data indicate Treg therapy is effective in reducing GVHD without compromising graft-versus-leukemia （GVL）.Conclusion Ex vivo expansion of Tregs is a reliable way to prepare sufficient number of Tregs for management of GVHD.

关键词： ex vivo expansion regulatory T cells adoptive therapy graft-versus-host disease allogeneic hematopoietic stem cell transplantation

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