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39篇 您的检索式:作者名="Xiangjuan"
    题名 作者 年代 出处 被引量
1Rapid detection of multiple class pharmaceuticals in both municipal wastewater and sludge with ultra high performance liquid chromatography tandem mass spectrometry显示文摘This work described the development,optimization and validation of an analytical method for rapid detection of multiple-class pharmaceuticals in both municipal wastewater and sludge samples based on ultrasonic solvent extraction,solid-phase extraction,and ultra high performance liquid chromatography–tandem mass spectrometry quantification.The results indicated that the developed method could effectively extract all the target pharmaceuticals(25)in a single process and analyze them within 24 min.The recoveries of the target pharmaceuticals were in the range of 69%–131%for wastewater and 54%–130%for sludge at different spiked concentration levels.The method quantification limits in wastewater and sludge ranged from 0.02 to 0.73 ng/L and from 0.02 to 1.00μg/kg,respectively.Subsequently,this method was validated and applied for residual pharmaceutical analysis in a wastewater treatment plant located in Beijing,China.All the target pharmaceuticals were detected in the influent samples with concentrations varying from0.09 ng/L(tiamulin)to 15.24μg/L(caffeine);meanwhile,up to 23 pharmaceuticals were detected in sludge samples with concentrations varying from 60 ng/kg(sulfamethizole)to8.55 mg/kg(ofloxacin).The developed method demonstrated its selectivity,sensitivity,and reliability for detecting multiple-class pharmaceuticals in complex matrices such as municipal wastewater and sludge.Xiangjuan Yuan Zhimin Qiang Weiwei Ben Bing Zhu Junxin Liu 2014Journal of Environmental Sciences2014,26,9:12
2Identification of a senescence-related protease in coriander leaves显示文摘Senescence-related protease may play an important role in leaf senescence. By improved SDS-Gela-tin-PAGE assay, a 63 ku senescence-related protease (63 SRP) in coriander leaves was identified. Activity of 63 SRP was increased in parallel to the advance of coriander leaf senescence, and inhibited by treating the leaf with gibberellic acid, and enhanced by ethylene treatment. The 63 SRP was suggested to be a serine protease based on the fact that its activity was inhibited by the protease inhibitor PMSF. The optimal temperature for the activity of the 70 ku protease was 50°C. The maximal activity was observed at pH 6-9, some activity could be observed on the gel slices incubated at pH 5 or 11. The 63 SRP was partly purified by the way of ammonium sulfate precipitation and then gel slicing after gel elec-trophoresis.Weibo Jiang Xiangjuan Zhou Yumei Zhao Pengcheng Liu 2002Chinese Science Bulletin2002,47,13:10
3Application of ultra-sonication, acid precipitation and membrane filtration for co-recovery of protein and humic acid from sewage sludge显示文摘一个新奇方法被用于共同恢复从为液体化肥和动物的除去的污水污泥的蛋白质和腐殖的酸喂。在污水污泥的蛋白质首先用 ultrasonication 和酸降水的过程被提取,然后腐殖的酸经由膜过滤被恢复。抽取效率是 125.9 mg 腐殖的酸 ???????????????????????? 卓吗?Liangliang WEI Kun WANG Xiangjuan KONG Guangyi LIU Shuang CUI Qingliang ZHAO Fuyi CUI 2016Frontiers of Environmental Science & Engineering2016,10,2:9
4Enhancement of CO2 Absorption under Taylor Flow in the Presence of Fine Particles显示文摘The physical absorption of CO2 in water containing different types of particles was studied in a microchannel operated under Taylor flow.The maximum enhancement factors of 1.43 2.15 were measured for activated carbon (AcC) particles.The analysis shows that the enhancement effect can be attributed to the shuttle mechanism.Considering the separate contributions of mass transfer from bubble cap and liquid film,a heterogeneous enhancement model is developed.According to this model,the enhancement factors E Cap,E Film and E Ov are mainly determined by mass transfer coefficient KL (KL,Cap and KL,Film),adsorptive capacity of particles m,and coverage fraction of particles at gas-liquid interface ζ.With both effects of particle-to-interface adhesion and apparent viscosity included,the model predicts the enhancement effect of AcC particles reasonably well.CAI Wangfeng ZHANG Jiao ZHANG Xubin WANG Yan QI Xiangjuan 2013Chinese Journal of Chemical Engineering2013,21,2:9
5Enhanced ozonation degradation of atrazine in the presence of nano-ZnO: Performance, kinetics and effects显示文摘Enhanced ozonation degradation of atrazine(ATZ) with nano-ZnO(nZnO) as catalyst and the influences of the operational parameters have been investigated through semi-continuous experiments in this study. The results demonstrated that the combination of ozone(O_3) and nZnO showed an obvious synergetic effect and the ATZ degradation conformed to pseudo-first-order kinetics. An improvement of ATZ degradation efficiency by 41.8% and pseudo-first-order rate constant by more than a factor of four was obtained in the O_3/nZnO process after 5 min of reaction compared to O_3 alone. Meanwhile, the degradation efficiency of ATZ was gradually enhanced with increasing nZnO dosage and initial pH in the range from 3.0 to 8.0, and a higher amount of ATZ was degraded when the initial concentration of ATZ rose from 0.5 to 5 mg/L. Additionally, sulfate ion, chloride ion, nitrate ion and low concentrations of humic acid substances led to enhancement of the ATZ degradation. The notable decrease of ATZ removal efficiency observed in the presence of radical scavengers and the results of free radical tests indicated thatUOH is the dominant active radical species. The mechanism investigation demonstrated that the enhancement effect could be attributed to the introduction of nZnO,which could promote the utilization of O_3, enhance the formation of superoxide radical, and further accelerate the production of hydrogen peroxide and the generation of OH/O_2^-.Xiangjuan Yuan Xuan Yan Haiming Xu Dongya Li Lei Sun Gang Cao Dongsheng Xia 2017Journal of Environmental Sciences2017,29,11:4
6Transformation of erythromycin during secondary effluent soil aquifer recharging:Removal contribution and degradation path显示文摘Erythromycin(ERY),a widely used antibiotic,has recently been detected in municipal secondary effluents and poses serious threats to human health during wastewater reusing.In this study,the removal,fate,and degradation pathway of ERY in secondary effluent during soil aquifer treatment was evaluated via laboratory-scale SAT tests.Up to a 92.9%reduction of ERY in synthetic secondary effluent was observed in 1.0 m depth column system,which decreased to 64.7%when recharged with wastewater treatment plant secondary effluent.XRD-fractionation results demonstrated that the transphilic acid and hydrophobic acid fractions in secondary effluent compete for the adsorption sites of the packed soil and lead to a declined ERY removal.Moreover,aerobic biodegradation was the predominant role for ERY removal,contributing more than 60%reduction of ERY when recharged with synthetic secondary effluent.Destruction of 14-member macrocyclic lactone ring and breakdown of two cyclic sugars(L-cladinose and D-desosamine) were main removal pathways for ERY degradation,and produced six new intermediates.Liangliang Wei Kena Qin Ningbo Zhao Daniel R.Noguera Wei Qiu Qingliang Zhao Xiangjuan Kong Weixian Zhang Felix Tetteh Kabutey 2017Journal of Environmental Sciences2017,29,1:4
7Test Data Generation for Multiple Paths Based on Local Evolution显示文摘Generating test data by genetic algorithms is a promising research direction in software testing, among which path coverage is an important test method. The efficiency of test data generation for multi-path coverage needs to be further improved. We propose a test data generation method for multi-path coverage based on a genetic algorithm with local evolution. The mathematical model is established for all target paths, while in the algorithm the individuals are evolved locally according to different objective functions. We can improve the utilization efficiency of test data. The computation cost can be reduced by using fitness functions of different granularity in different phases of the algorithm.YAO Xiangjuan GONG Dunwei WANG Wenliang 2015Chinese Journal of Electronics2015,24,1:4
8BAK1-mediated phosphorylation of canonical G protein alpha during flagellin signaling in Arabidopsis显示文摘Heterotrimeric G proteins consisting of Gα,Gβand Gγare conserved signaling hubs in eukaryotes.Without analogs to canonical animal G protein-coupled receptors,plant cells are thought to use RGS1 and a yet unknown mechanism to regulate the activity of Gα.Meanwhile,the exact role of canonical Gαin plant innate immunity remains controversial.Here,we report multiple immune deficiencies in the null allele of Arabidopsis Gα(GPA1)in response to bacterial flg22 elicitor,clarifying a positive regulatory role of GPA1 in flg22 signaling.We also detect overall increased phosphorylation of GPA1 but reduced phosphorylation at Thr^19 upon flg22 elicitation.Interestingly,flg22 could not induce phosphorylation of GPA1 T19 Aand GPA1 T19D,suggesting that the dynamic Thr^19 phosphorylation is required for GPA1 to respond to flg22.Moreover,flg22-induced GPA1 phosphorylation is largely abolished in the absence of BAK1 in vivo,and BAK1 could phosphorylate GPA1 but not GPA1^T19A in vitro at the phosphorylation sites identified in vivo,suggesting BAK1 is likely the kinase for GPA1 phosphorylation in response to flg22.Furthermore,the T19A mutation could promote flg22-induced association,rather than dissociation,between GPA1 and RGS1.Taken together,our findings shed new insights into the function and regulation of GPA1 in Arabidopsis defense signaling.Jiao Xue Ben-Qiang Gong Xinran Yao Xiangjuan Huang Jian-Feng Li 2020Journal of Integrative Plant Biology2020,62,5:2
9Molecular analysis of cell-free DNA identifies distinct molecular features in patients with chemosensitive and chemorefractory small cell lung cancer显示文摘Dear Editor,Lung cancer is the predominant cause of cancer-related death worldwide[1].Non-small cell lung cancer accounts for 80%-85%and small cell lung cancer(SCLC)accounts for 15%-20%of all lung cancer cases[2].Patients with SCLC,a highly aggressive and poorly differentiated malignancy,have an alarming average 5-year overall sur-vival rate of less than 10%[3].Most patients with SCLC already show clinically detectable metastases at diag-nosis and have extremely poor prognoses,even when treated with multimodality therapy[4].Before the addi-tion of atezolizumab to chemotherapy became the first-line treatment of extensive-stage SCLC,chemotherapy is the primary treatment of SCLC[5].Jie Zhang Chen Tian Fang Lv Jianfei Wang Wenbo Han Jun Nie Ling Dai Weiheng Hu Xiaoling Chen Xiangjuan Ma Guangming Tian Di Wu Sen Han Yang Wang Jieran Long Ziran Zhang Jian Fang Henghui Zhang 2019Cancer Communications2019,39,1:2
10Treatment of water-based printing ink wastewater by Fenton process combined with coagulation显示文摘MA Xiangjuan XIA Huilong 2009Journal of Hazardous Materials2009,162,:1
11The role of powdered activated carbon in enhancing the performance of mem- brane systems for water treatment 显示文摘GAI Xiangjuan KIM Hanseung 2008Desalination2008,225,:1
12Reactivation performance of aerobic granules under different storage strategies显示文摘Dawen Gao Xiangjuan Yuan Hong Liang 2012Water Research2012,,10:1
13Solid State Reduction of Titanomagnetite Concentrate by Graphite 显示文摘Haoyan S Xiangjuan D Xuefeng S 2013ISIJ International2013,53,4:1
14Solid state reduction of titanomagnetite concentrate by graphite 显示文摘Haoyan Sun Xiangjuan Dong Xuefeng She 2013ISIJ International2013,53,4:1
15Evolu- tionary generation of test data for many paths coverage based on grouping 显示文摘Gong Dunwei Zhang Wanqiu Yao Xiangjuan 2011J Syst Software2011,84,12:1
16International Standardization of Blockchain and Distributed Ledger Technology:Overlaps,Gaps and Challenges显示文摘As one of the most concerned digital technologies in recent years,blockchain and distributed ledger technology are an important driving force for a new round of technological development.It is currently in the process of accelerating its evolution and maturity,and has gradually integrated with other digital technologies.It has been applied in many industries,providing decentralized solutions for various industries,realizing innovative storage models,and building a new trust system.As blockchain technology is officially incorporated into China’s new information infrastructure category,the application fields of blockchain have expanded rapidly,gradually extending from the financial field and government affairs to other fields in the real economy.At the same time,with the continuous development of the globalized economy,blockchain technology will also have a profound impact on international technological and economic development.Therefore,for the healthy and orderly development and real implementation of the blockchain industry,standardize the application of blockchain,effectively break through the cognitive and technical barriers between different countries,industries and systems on a global scale,prevent application risks,the development of the global blockchain industry needs standardization basis,which is particularly important and urgent.A sound standard system is an important key to the successful development of technology,and formulating the right standard at the right time for technology development helps ensure the ease of use and interoperability of the technology.From the perspective of international standardization,this article first introduces the general situation of ISO,ITU-T,IEEE,W3C and other international standardization organizations,and sorts out the status quo of the blockchain standardization working groups of mainstream international standardization organizations.All blockchain-related standards under development have been analyzed for the characteristics of international blockchain technology standards and industry application standards.Through data analysis,the overlaps,differences and conflicts in the field of international blockchain standard formulation are sorted out,and suggestions for blockchain standardization work in the application and development of blockchain technology standardization by international organizations and industries are put forward.The plans and layouts of future international standards are summarized to help the development of the international standardization of blockchain.Xiangjuan Jia Jing Xu Mengwei Han Qing Zhang Lu Zhang Xiaofeng Chen 2023Computer Modeling in Engineering & Sciences2023,,11:1
17Clinical outcomes of atezolizumab in combination with etoposide/platinum for treatment of extensive-stage small-cell lung cancer:A real-world,multicenter,retrospective,controlled study in China显示文摘Objective:Atezolizumab along with chemotherapy has prolonged the survival of patients with extensive-stage small-cell lung cancer(ES-SCLC)worldwide,although real-world(RW)data are lacking in China.This study was designed to evaluate the efficacy and clinical outcomes of atezolizumab plus etoposide/platinum(EP).Methods:Data obtained in this retrospective study were captured from six oncology units of five medical facilities from January 2019 to April 2022.For first-line treatments,atezolizumab combined with EP vs.EP alone,we primarily evaluated progression-free survival(PFS);other efficacy indicators,including overall survival(OS),objective response rate(ORR),and patterns of SCLC progression and adverse events(AEs)were assessed.Results:The primary analysis included data from 225 patients,of whom 133 received EP along with atezolizumab(atezolizumab group)and 92 received EP alone(EP group).The PFS duration of the atezolizumab group[7.10 months;95%confidence interval(95%CI),6.53-9.00]exceeded that of the EP group(6.50 months;95%CI,4.83-7.53).Overall,the hazard ratio(HR)was 0.69(95%CI,0.49-0.97)(P=0.029);particularly,the HR was 0.54(95%CI,0.36-0.80)among patients undergoing≥4 chemotherapy cycles and 0.33(95%CI,0.20-0.56)among individuals with atezolizumab maintenance.The ORR and disease-control rate(DCR)were similar between the two groups.Because of incomplete OS data,the median OS was not determined for either group.Bone marrow suppression was the most common AE detected(58.6%)in the atezolizumab group.Immune-related AEs occurred in 19 patients in the atezolizumab group(14.3%),with only one case of grade 3 encephalitis.Conclusions:This RW study in China demonstrated improved clinical outcomes of atezolizumab along with EP for ES-SCLC,particularly in the chemosensitive population.These results align with the results of the IMpower133 study,although the impact of this treatment modality on OS warrants additional follow-up studies.Hanxiao Chen Xiangjuan Ma Jie Liu Yu Yang Yong Fang Liping Wang Jian Fang Jun Zhao Minglei Zhuo 2022Chinese Journal of Cancer Research2022,34,4:1
18A study of the four-switch low cost inverter that uses the magnetic flux control method显示文摘Zhijian Jiang Dianguo Xu Xiangjuan Zhu 20044 th IEEE International Conference on Power Electronics Motion Control(IPEMC''04)2004,3,:1
19Degree conditions for group connectivity 显示文摘YAO XIANGJUAN LI XIANGWEN LAI HONGJIAN 2010Discrete Mathematics2010,310,5:1
20A novel fluidized electrochemical reactor for organic pollutant abatement显示文摘Zhou Minghua Wu Zucheng Ma Xiangjuan 2004Separation and Purification Technology2004,34,123:1
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