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27篇 您的检索式:作者名="Yu Jinxia"
    题名 作者 年代 出处 被引量
1Low-temperature conversion of ammonia to nitrogen in water with ozone over composite metal oxide catalyst显示文摘As one of the most important water pollutants, ammonia nitrogen emissions have increased year by year, which has attracted people's attention. Catalytic ozonation technology, which involves production of ·OH radical with strong oxidation ability, is widely used in the treatment of organic-containing wastewater. In this work, MgO-Co_3O_4 composite metal oxide catalysts prepared with different fabrication conditions have been systematically evaluated and compared in the catalytic ozonation of ammonia(50 mg/L) in water. In terms of high catalytic activity in ammonia decomposition and high selectivity for gaseous nitrogen, the catalyst with MgO-Co_3O_4 molar ratio 8:2, calcined at 500°C for 3 hr, was the best one among the catalysts we tested, with an ammonia nitrogen removal rate of 85.2% and gaseous nitrogen selectivity of44.8%. In addition, the reaction mechanism of ozonation oxidative decomposition of ammonia nitrogen in water with the metal oxide catalysts was discussed. Moreover, the effect of coexisting anions on the degradation of ammonia was studied, finding that SO_2-4 and HCO-3 could inhibit the catalytic activity while CO_2-3 and Br-could promote it. The presence of coexisting cations had very little effect on the catalytic ozonation of ammonia nitrogen. After five successive reuses, the catalyst remained stable in the catalytic ozonation of ammonia.Yunnen Chen Ye Wu Chen Liu Lin Guo Jinxia Nie Yu Chen Tingsheng Qiu 2018Journal of Environmental Sciences2018,30,4:10
2An adaptive particle filter for soft fault compensation of mobile robots显示文摘Soft fault compensation plays an important role in mobile robot locating, mapping, and navigating. It is difficult to achieve fast and accurate compensation for mobile robots because they are usually highly non-linear, non-Gaussian systems with lim-ited computation and memory resources. An adaptive particle filter is presented to compensate two kinds of soft faults for mobile robots, i.e., noise or factor faults of dead reckoning sensors and slippage of wheels. Firstly, the kinematics models and the fault models are discussed, and five kinds of residual features are extracted to detect soft faults. Secondly, an adaptive particle filter is designed for fault com-pensation, and two kinds of adaptive scheme are discussed: 1) the noise variances of linear speed and yaw rate are adjusted according to residual features; 2) the particle number is adapted according to Kullback-Leibler divergence (KLD) of two approximate distribution denoted with two particle sets with different particles, i.e., increasing particle number if the KLD is large and decreasing particle number if the KLD is small. The theoretic proof is given and experimental results show the effi-ciency and accuracy of the presented approach.DUAN ZhuoHua CAI ZiXing YU JinXia 2008Science in China(Series F)2008,51,12:8
3Luminescent metal nanoclusters for biomedical applications显示文摘Luminescent metal nanoclusters (NCs) have recently emerged as a novel class of luminescent nanomaterials and hold significant potential in biomedicine owing to their ultrasmall (<2nm) size,excellent photostability,and good biocompatibility.The recent rapid advances in the synthesis and functionalization of luminescent metal NCs have enabled scientists to develop colorful nanomaterials and nanodevices for a wide range of biomedical applications.In this review,we summarize the characteristics and advantages of luminescence from metal NCs,and highlight their applications in biomedicine.We focus on the research in biomedical detection,bio-imaging,drug delivery,and therapy,especially for the advances in the last five years.Luminescent metal NCs display a series of unique superiorities in biomedical applications,and the recent achievements have brought a lot of benefits to the diagnosis and treatment of clinical diseases,especially for tumors and cancers.Finally,we put forward the main challenges that currently still hinder the basic science studies and the practical development of luminescent metal NCs in biomedical applications.Overall,we expect that luminescent metal NCs will play a much more important role in future biomedicine and clinical applications.Yu Su Tiantian Xue Yuxin Liu Jinxia Qi Rongchao Jin Zhenkun Lin 2019Nano Research2019,12,6:6
4Improved method for the feature extraction of laser scanner using genetic clustering显示文摘Feature extraction of range images provided by ranging sensor is a key issue of pattern recognition. To automatically extract the environmental feature sensed by a 2D ranging sensor laser scanner, an improved method based on genetic clustering VGA-clustering is presented. By integrating the spatial neighbouring information of range data into fuzzy clustering algorithm, a weighted fuzzy clustering algorithm (WFCA) instead of standard clustering algorithm is introduced to realize feature extraction of laser scanner. Aimed at the unknown clustering number in advance, several validation index functions are used to estimate the validity of different clustering al-gorithms and one validation index is selected as the fitness function of genetic algorithm so as to determine the accurate clustering number automatically. At the same time, an improved genetic algorithm IVGA on the basis of VGA is proposed to solve the local optimum of clustering algorithm, which is implemented by increasing the population diversity and improving the genetic operators of elitist rule to enhance the local search capacity and to quicken the convergence speed. By the comparison with other algorithms, the effectiveness of the algorithm introduced is demonstrated.Yu Jinxia Cai Zixing Duan Zhuohua 2008Journal of Systems Engineering and Electronics2008,19,2:6
5A systematic theoretical study on FeOx-supported single-atom catalysts: M1/FeOx for CO oxidation显示文摘Jinxia Liang Qi Yu Xiaofeng Yang Tao Zhang Jun Li 2018Nano Research2018,11,3:5
6STRUCTURE PARAMETERS DESIGN AND PERFORMANCE TEST OF FUEL INJECTION SYSTEM显示文摘基于数字模拟分析,高压力燃料泵的结构参数和象流动 limiter 一样的普通栏杆被设计并且 GD-1 高压力普通栏杆燃料注射系统自我开发。燃料注射特征实验在 GD-1 系统上被执行。并且双因素变化分析被使用在燃料注射数量的一致性上调查栏杆压力和注射脉搏宽度的影响,这样测试结构参数的设计是否因此是健全的。实验和测试的结果证明象 theirmutual 效果一样的栏杆压力和注射脉搏宽度没在注射数量一致性上有影响,它证明结构参数设计是成功的, GD-1 系统的性能是健全的。WU Changshui YU Jinxia YANG Lin ZHUO Bin 2006Chinese Journal of Mechanical Engineering2006,19,3:4
7Efficacy of decoction from Jieduan Niwan formula on rat model of acute-on-chronic liver failure induced by porcine serum显示文摘OBJECTIVE:To dynamically observe the efficacy of Jieduan Niwan formula(JDNW)on a rat model of acute-on-chronic liver failure(ACLF).METHODS:Seventy Wistar rats were divided into control group(6 rats),model group(22 rats),JDNW group(21 rats),and SP600125 group(21 rats).13 weeks'porcine serum injection followed with D-galactosamine and lipopolysaccharide joint acute attack was used to establish ACLF model.Rats in JDNW group were orally given JDNW formula for 3 days before acute attack;rats in SP600125 group were injected with SP60012530 min ahead of acute attack.Rats were sacrificed respectively at 4,8 and 12 h after model established.Alanine aminotransferase(ALT),aspartate aminotransferase(AST),total bilirubin(TBIL),Creatinine(CR),blood urea nitrogen(BUN),prothrombin activity(PTA)were examined by biochemical process,Tumor necrosis factor-alpha(TNF-α),interleukin-1β(IL-1β),interleukin-6(IL-6),interleukin-10(IL-10),transformed growth factor-beta 1(TGF-β1),High mobility group box-1(HMGB-1),CD3,CD4,CD8 were analyzed by enzyme-linked immunosorbent assay,apoptotic index(AI)was detected by terminal-deoxynucleoitidyl transferase mediated nick end labeling staining,expression of Bad,phosphorylated Jun N-terminal kinases(p-JNK)and Cytochrome C(Cyt C)were detected by immunohistochemical analysis,Bax and Bid were detected by Western blot analysis.RESULTS:In model group,the levels of ALT,AST,TBIL,CR,BUN,IL-1β,IL-6,IL-10,TGF-β1 and HMGB-1 remarkably increased and PTA decreased compared with control group(P<0.05),as time goes on,ALT,AST,TBIL,CR,BUN,continued to grow,while IL-1β,IL-6,IL-10,HMGB-1,TGF-β1 and PTA gradually decreased;massive necrosis could be seen;the levels of TNF-α,CD3,CD4,CD8,AI,p-JNK,Bax,Bad,Bid and Cyt C increased at 4 h and peaked at 8 h,but decreased at 12 h(P<0.05).JDNW group,by contrast,showed less pathological injury,increased PTA level,and reduced ALT,AST,TBIL,TNF-α,IL-1β,IL-6,IL-10,TGF-β1,HMGB-1,CD3,CD4 and CD8 levels(P<0.05),moreover,the AI and expression of p-JNK,Bax,Bad,Bid and Cyt C were lower than model group at 4 and 8 h but were higher at 12 h(P<0.05).Similar results were observed in SP600125 group.CONCLUSION:An ACLF rat model with low mortality can be established by porcine serum joint with D-galactosamine+lipopolysaccharide induction;JDNW decoction can effectively suppress the inflammatory reaction,improve the immune system,and protect the liver of ACLF rats,the mechanism might involve the inhibition of the JNK-induced mitochondrial apoptotic pathway.Li Jinxia Zhang Qiuyun Gao Lianyin Du Yuqiong Chen Yu 2020Journal of Traditional Chinese Medicine2020,40,4:3
8Determinants of agricultural water saving technology adoption:an empirical study of 10 provinces of China显示文摘In recent years,China has been faced by an increasingly severe water shortage due to the continual growth of demand on water resources.Although the Chinese government has been actively promoting the agricul-tural water-saving technology adoption,it is ill-informed of the adoption degree of the current agricultural water-saving technologies as well as the function of the governmental policies.Therefore,this paper analyzes the aforesaid problems based on investigative data of 10 provinces in China.The results demonstrate that although there is a rapid increase of adopted agricultural water-saving technologies,the actual adoption area is rather limited.Moreover,the governmental policies and scarcity of water resources are the determinants of agricultural water-saving technology adoption.Ultimately,the paper proposes some policy suggestions.Liu Yu Huang Jikun Wang Jinxia Scott Rozelle 2008Ecological Economy2008,4,4:2
9In Vivo Two-photon Calcium Imaging in Dendrites of Rabies Virus-labeled V1 Corticothalamic Neurons显示文摘Monitoring neuronal activity in vivo is critical to understanding the physiological or pathological functions of the brain.Two-photon Ca^(2+)imaging in vivo using a cranial window and specific neuronal labeling enables realtime,in situ,and long-term imaging of the living brain.Here,we constructed a recombinant rabies virus containing the Ca^(2+)indicator GCaMP6 s along with the fluorescent protein DsRed2 as a baseline reference to ensure GCaMP6 s signal reliability.This functional tracer was applied to retrogradely label specific V1-thalamus circuits and detect spontaneous Ca^(2+)activity in the dendrites of V1 corticothalamic neurons by in vivo two-photon Ca^(2+)imaging.Notably,we were able to record single-spine spontaneous Ca2+activity in specific circuits.Distinct spontaneous Ca^(2+)dynamics in dendrites of V1 corticothalamic neurons were found for different V1-thalamus circuits.Our method can be applied to monitor Ca^(2+)dynamics in specific input circuits in vivo,and contribute to functional studies of defined neural circuits and the dissection of functional circuit connections.Yajie Tang Liang Li Leqiang Sun Jinsong Yu Zhe Hu Kaiqi Lian Gang Cao Jinxia Dai 2020Neuroscience Bulletin2020,36,5:2
10Fuzzy Likelihood Estimation Based Map Matching for Mobile Robot Self- localization 显示文摘Yu Jinxia Cai Zixing 2006FSKD2006,4223,:1
11Expression status of GATA3 and mismatch repair proteins in upper tract urothelial carcinoma显示文摘GATA binding protein 3 (GATA3) and mismatch repair (MMR) deficiency contribute to the development of urothelial carcinoma. However, the combined expression of GATA3 and microsatellite instability (MSI) in upper tract urothelial carcinoma (UTUC) and its prognostic value have not been investigated. Here, we immunohistochemically stained GATA3 and MMR proteins in 108 UTUC samples. GATA3 was positive in 74 cases, and its expression was significantly lower than in adjacent benign urothelium (P<0.001). Loss of GATA3 expression was statistically associated with adverse clinicopathologic parameters, such as advanced stage, lymphovascular invasion, neural invasion, lymph node metastasis, and extensive necrosis. Cancer-specific survival (CSS, P=0.028) and disease-free survival (DFS, P=0.024) were significantly shorter in patients with GATA3 negative tumors than in patients with GATA3 positive tumors. The absence of MMR proteins was observed in 8.3% of the cases, and focal staining was identified in 13.0%. When using “lax criteria” which resulted in counting cases as negative where MMR staining was in fact focally positive (<5%), we found that GATA3 was inversely associated with MSI (P=0.005). Moreover, GATA3−/microsatellite stability (MS) tumors were correlated with advanced pT stage (P<0.001) and poor outcome (P=0.019 for CSS, P=0.016 for DFS) compared with GATA3+/MSI ones. The GATA3−/MSI cases had unfavorable clinical outcomes compared with GATA3+/MSI cases (P=0.008 for CSS, P=0.023 for DFS). This finding raises a question as to whether GATA3 interacts with MSI through the TGF-β signaling pathway and regulates UTUC progression.Yue Wang Jinxia Zhang Yunfan Wang Shufang Wang Yu Zhang Qi Miao Fei Gao Huiying He 2019Frontiers of Medicine2019,13,6:1
12In vivo fiber photometry of neural activity in response to optogenetically manipulated inputs in freely moving mice显示文摘In vito fber photometry is a powerful technique to analyze the dy namics of population neurons during fiunctional study of neuroscience.Here,we introduced a detailed protocol for fiber photometry-based calciun reording in freely moving mice,covering from virus injection,fiber stub insertion,optogenetical stimulation to data procurement and analysis.Furthemnore,we applied this protocol to explore neuronal activity of mice latenal-posterior(LP)thalaric nucleus in response to optogenetical stimulation of primary visual cortex(V1)neurons,and explore axon clusters activity of optogenetically evoked V1 neurons.Final confirmation of virus-based protein expression in V1 and precise fber insertion indicated that the surgery procedure of this protocol is reliable for functional calcium recording.The scripts for data analysis and some tips in our protocol are provided in details.Together,this protocol is simple,low-cost,and effective for neuronal activity detection by fiber photometry,which will hep neuroscience researchers to carry out fiunctional and behavioral study in vivo.Liang Li Yajie Tang Leqiang Sun Khaista Rahman Kai Huang Weize Xu Jinsong Yu Jinxia Dai Gang Cao 2017Journal of Innovative Optical Health Sciences2017,,5:1
13Acrylamide Alters Cytoskeletal Protein Level in Rat Sciatic Nerves显示文摘Sufang Yu Fuyong Son Jinxia Yu Xiulan Zhao Lihua Yu Guozhen Li Keqin Xie 2006Neurochemical Research2006,,10:1
14A multiplex nested PCR assay for the simultaneous detection of genetically modified soybean, maize and rice in highly processed products显示文摘Ao Jinxia Li Qingzhang Gao Xuejun Yu Yanbo Li Lu Zhang Minghui 2011Food Control2011,,10:1
15Dispersion copolymerization of methyl methacrylate and acrylic acid in polar media: effects of reaction parameters on the particle size and size distribution of the copolymer microspheres显示文摘Huang Jinxia Yuan Xiaoya Yu Xianglin 2003Polym Int2003,52,5:1
16Detection of Roundup Ready soy in highly processed products by triplex nested PCR显示文摘Minghui Zhang Xuejun Gao Yanbo Yu Jinxia Ao Jun Qin Yonghao Yao Qingzhang Li 2006Food Control2006,,10:1
17A low-cost and large-scale synthesis of nano-zinc oxide from smithsonite显示文摘Yucheng Zhang Jinxia Deng Jun Chen Ranbo Yu Xianran Xing 2014Inorganic Chemistry Communications2014,,:1
18Leaching of zinc from calcined smithsonite using sodium hydroxide显示文摘Yucheng Zhang Jinxia Deng Jun Chen Ranbo Yu Xianran Xing 2013Hydrometallurgy2013,,:1
19Wireless electrical stimulation at the nanoscale interface induces tumor vascular normalization显示文摘Pathological angiogenesis frequently occurs in tumor tissue, limiting the efficiency of chemotherapeutic drug delivery and accelerating tumor progression. However, traditional vascular normalization strategies are not fully effective and limited by the development of resistance. Herein, inspired by the intervention of endogenous bioelectricity in vessel formation, we propose a wireless electrical stimulation therapeutic strategy, capable of breaking bioelectric homeostasis within cells, to achieve tumor vascular normalization. Polarized barium titanate nanoparticles with high mechano-electrical conversion performance were developed, which could generate pulsed open-circuit voltage under low-intensity pulsed ultrasound. We demonstrated that wireless electrical stimulation significantly inhibited endothelial cell migration and differentiation in vitro. Interestingly, we found that the angiogenesis-related eNOS/NO pathway was inhibited, which could be attributed to the destruction of the intracellular calcium ion gradient by wireless electrical stimulation. In vivo tumor-bearing mouse model indicated that wireless electrical stimulation normalized tumor vasculature by optimizing vascular structure, enhancing blood perfusion, reducing vascular leakage, and restoring local oxygenation. Ultimately, the anti-tumor efficacy of combination treatment was 1.8 times that of the single chemotherapeutic drug doxorubicin group. This work provides a wireless electrical stimulation strategy based on the mechano-electrical conversion performance of piezoelectric nanoparticles, which is expected to achieve safe and effective clinical adjuvant treatment of malignant tumors.Changhao Li Cairong Xiao Lizhen Zhan Zhekun Zhang Jun Xing Jinxia Zhai Zhengnan Zhou Guoxin Tan Jinhua Piao Yahong Zhou Suijian Qi Zhengao Wang Peng Yu Chengyun Ning 2022Bioactive Materials2022,7,12:1
20Effects of light quality on CO 2 assimilation, chlorophyll-fluorescence quenching, expression of Calvin cycle genes and carbohydrate accumulation in Cucumis sativus显示文摘Hong Wang Min Gu Jinxia Cui Kai Shi Yanhong Zhou Jingquan Yu 2009Journal of Photochemistry & Photobiology B: Biology2009,,1:1
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