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Determination of hydroxyl radicals in TiO2/Ti photoelectrocatalytic oxidation system using Fe（phen）3^2＋ spectrophotometry

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Journal of Environmental Sciences 2006年第1期18卷 158-161页

作者： jiang Yan-li LIU hui-ling WANG Qun-hui jiang Zhao-hua Department of Environmental Engineering Harbin Institute of Technology Harbin 150001 China Department of Applied Chemistry Harbin Institute of Technology Harbin 150001 China School of Life Science and Chemistry Harbin University Harbin 150086 China

A new method of determining the cumulate concentration of hydroxyl radicals in the TiO2/Ti photoelectrocatalytic（PEC） oxidation system was established by o-phenanthroline-Fe（Ⅱ）（Fe（phen）3^2＋） spectrophotometry and using anion exchange membrane. Fe （phen）3^2＋ can be oxidized to o-phenanthroline-Fe（Ⅲ）（Fe（phen）3^3＋） by strong oxidization of hydroxyl radicals（·OH）. Then the cumulate concentration of hydroxyl radicals can be calculated through determining the change of the Fe（phen）3^3＋ absorbency at 509 nm. In addition, the research results showed the production rate of hydroxyl radicals was affected obviously by pH of solution, the cumulate concentration of hydroxyl radicals was the largest at nearby the initial pH 6.3 （isoelectric point）, and the change direction of pH after illumination tended to nearby isoelectric point.

关键词： TiO2 / Ti catalyst photoelectrocatalysis o-phenanthroline-Fe hydroxyl radical anion exchange membrane

Porous nickel–titanium alloy prepared by gel-casting

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Rare Metals 2014年第4期33卷 394-399页

作者： Bo-Hua Duan Hai-Xia Hong De-Zhi Wang hui-jiang Liu Xiao-jia Dong Dan-Dan Liang School of Materials Science and Engineering Central South University State Key Laboratory of Powder Metallurgy Central South University

To explore the preparation of porous nickel- titanium alloy with excellent properties, larger size and complex shape, the premixed powder of Ni and Ti with atomic ratio of 1：1 was shaped by gel-casting. The effects of solids loading and the content of dispersant on flow ability of nickel-titanium slurry and the mechanical properties of nickel-titanium sintered body were studied. The drying models under different solids loading were also discussed. The results show that the viscosity of slurries significantly increases with an increase in solids loading. After a proper process of drying, the green body with complex shape is obtained. The sintered body with porosity rate reaching up to 49.5 % and compression strength reaching to 364.74 MPa could meet the basic demands of implant materials.

关键词： Gel-casting Porous nickel-titanium alloy Solids loading Drying

The hard X-ray nanoprobe beamline at the SSRF

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Nuclear Science and Techniques 2024年第7期35卷 79-88页

作者： Yan He hui jiang Dong-Xu Liang Zhi-Sen jiang Huai-Na Yu Hua Wang Cheng-Wen Mao jia-Nan Xie Ai-Guo Li Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai201210China

The hard X-ray nanoprobe beamline BL13U is a phase-Ⅱ beamline project at the Shanghai Synchrotron Radiation *** beamline aims to enable comprehensive experiments at high spatial resolutions ranging from 50 to 10 nm. The X-ray energy range of the beamline, 5–25 keV, can detect most elements in the periodic table. Two operating modes were designed to accommodate the experimental requirements of high-energy resolution or high photon flux, respectively. X-ray nanofluorescence, nanodiffraction, and coherent diffraction imaging are developed as the main experimental techniques for BL13U. This paper describes the beamline optics, end station configurations, experimental methods under development, and preliminary test results. This comprehensive overview aims to provide a clear understanding of the beamline capabilities and potential applications.

关键词： Shanghai synchrotron radiation facility Hard X-ray nanoprobe X-ray nanofocusing

Bayesian Approach for Recovering Piecewise Constant Viscoelasticity from MRE Data

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Acta Mathematicae Applicatae Sinica 2020年第1期36卷 223-236页

作者： Yu jiang Shi-hui QIAN School of Mathematics Shanghai University of Finance and EconomicsShanghai 200433China

This paper deals with an inverse problem for recovering the piecewise constant viscoelasticity of a living body from MRE(Magnetic Resonance Elastography)*** on a scalar partial differential equation whose solution can approximately simulate MRE data,our inverse coefficient problem is considered as a statistical inverse problem of reconstructing the posterior distribution of unknown viscoelastic *** sampling this distribution,one usually can use the Metropolis-Hastings Markov chain Monte Carlo(MHMCMC)***,without an appropriate"proposal"distribution given artificially,the MH-MCMC algorithm is hard to draw samples *** avoid this,a so-called slice sampling algorithm is introduced in this paper and applied for solving our *** performance of these statistical inversion algorithms is numerically tested basing on simulated data.

关键词： Bayesian approach Markov chain Monte Carlo algorithm slice sampling algorithm interior measurement magnetic resonance elastography viscoelasticity

Inhibitory Effects of Phenylacetic Acid on Proliferation of Human Pancreatic Carcinoma BXPC-3 Cells by the Regulation of Adenosine Deaminases Acting on RNA

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Chemical Research in Chinese Universities 2010年第6期26卷 964-968页

作者： jiang Yao REN hui ZHANG Guang ZHANG Ling TIAN Xiao-feng jia hui-jie HAN Li-ying TIAN Yu Department of General Surgery China-Japan Union Hospital of Jilin University Changchun 130033 P. R. China Department of General Surgery the Second Hospital of Jilin University Changchun 130041 P R. China Department of Thyroid Gland Surgery China-Japan Union Hospital of Jilin University Changehun 130033 P. R. China Prostate Diseases Prevention and Treatment Research Centre and Department of Pathophysiology Norman Bethune Medical School Jilin University Changchun 130021 P. R. China Department of Obstetrics and Gynecology the Second Hospital of Jilin University Changchun 130041 P. R. China Department of Neurosurgery China-Japan Union Hospital of Jilin University Changchun 130033 P. R. China

The effect and mechanism of phenylacetic acid on the proliferation of pancreatic carcinoma cells were investigated in cultured pancreatic carcinoma BXPC-3 cells by means of 3-（4,5-dimethylthiazol-2-yl）-2,5-diphenyltetrazolium bromide assay and flow cytometry *** results show that the treatment of pancreatic carcinoma cells with phenylacetic acid significantly inhibited the cell proliferation in time-dependent and dose-dependent *** proliferation of BXPC-3 cells was inhibited at the stage of S phase,the cells at the end stage of S phase were accumulated abundantly,and thus DNA synthesis could not be accomplished *** addition,the expression of adenosine deaminases acting on RNA（ADARs） mRNA in BXPC-3 cells and pancreatic carcinoma specimen were detected by *** been treated with phenylacetic acid,ADAR2 mRNA in BXPC-3 cells was significantly decreased,the differences were of statistical significance（P0.01）.Taken together,these results suggest that phenylacetic acid may likely regulate the proliferation of pancreatic carcinoma cells through the regulation of ADAR2 mRNA expression.

关键词： Pancreatic carcinoma Phenylacetic acid ADAR2 RNA editing

A new early warning method for dam displacement behavior based on non-normal distribution function

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Water Science and Engineering 2022年第2期15卷 170-178页

作者： Zhen-xiang jiang hui Chen School of Hydraulic and Ecological Engineering Nanchang Institute of TechnologyNanchang 330099China

Traditional methods for early warning of dam displacements usually assume that residual displacements follow a normal *** assumption deviates from the reality,thereby affecting the reliability of early warning results and leading to misjudgments of dam displacement *** solve this problem,this study proposed an early warning method using a non-normal distribution function.A new early warning index was developed using cumulative distribution function(CDF)*** method of kernel density estimation was used to calculate the CDF values of residual displacements at a single *** copula function was used to compute the CDF values of residual displacements at multiple *** results showed that,with residual displacements in a non-normal distribution,the early warning method proposed in this study accurately reflected the dam displacement behavior and effectively reduced the frequency of false *** method is expected to aid in the safe operation of dams.

关键词： Non-normal distribution Dam displacement Early warning index Kernel density estimation Copula function

Out-of-time-order correlators in the one-dimensional XY model

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Communications in Theoretical Physics 2020年第8期72卷 69-78页

作者： jia-hui Bao Cheng-Yong Zhang Department of Physics and Siyuan Laboratory Jinan UniversityGuangzhou 510632China School of Physics and Astronomy Sun Yat-sen University2 Daxue Rd.Zhuhai 519082China

We study the behavior of information spreading in the XY model, using out-of-time-order correlators(OTOCs). The effects of anisotropic parameter γ and external magnetic field λon OTOCs are studied in detail within thermodynamical limits. The universal form which characterizes the wavefront of information spreading still holds in the XY model. The butterfly speed vBdepends on(γ, λ). At a fixed location, the early-time evolution behavior of OTOCs agrees with the results of the Hausdorff–Baker–Campbell expansion. For long-time evolution,OTOCs with local operators decay as for power law t^-1, but those with nonlocal operators show different and nontrivial power law behaviors. We also observe temperature dependence for OTOCs when(γ=0, λ=1). At low temperature, the OTOCs with nonlocal operators show divergence over time.

关键词： out-of-time-order correlators information spreading integrable model

Boosting Unsupervised Monocular Depth Estimation with Auxiliary Semantic Information

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China Communications 2021年第6期18卷 228-243页

作者： hui Ren Nan Gao jia Li State Key Laboratory of Media Convergence and Communication、Key Laboratory of Acoustic Visual Technology and Intelligent Control System Ministry of Culture and Tourism(Communication University of China)、Beijing Key Laboratory of Modern Entertainment Technology(Communication University of China)、School of Information and Communication EngineeringCommunication University of China.No.1Dingfuzhuang StreetChaoyang DistrictBeijing100024China

Learning-based multi-task models have been widely used in various scene understanding tasks,and complement each other,i.e.,they allow us to consider prior semantic information to better infer *** boost the unsupervised monocular depth estimation using semantic segmentation as an auxiliary *** address the lack of cross-domain datasets and catastrophic forgetting problems encountered in multi-task training,we utilize existing methodology to obtain redundant segmentation maps to build our cross-domain dataset,which not only provides a new way to conduct multi-task training,but also helps us to evaluate results compared with those of other *** addition,in order to comprehensively use the extracted features of the two tasks in the early perception stage,we use a strategy of sharing weights in the network to fuse cross-domain features,and introduce a novel multi-task loss function to further smooth the depth *** experiments on KITTI and Cityscapes datasets show that our method has achieved state-of-the-art performance in the depth estimation task,as well improved semantic segmentation.

关键词： unsupervised monocular depth estimation semantic segmentation multi-task model

Re-induction with modified CLAG regimen in relapsed or refractory acute myeloid leukemia in children bridging to allogeneic hematopoietic stem cell transplantation

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World Journal of Pediatrics 2020年第2期16卷 152-158页

作者： Na Zhang Jing-Bo Shao Hong Li Jing-Wei Yang Kai Chen jia-Shi Zhu hui jiang Department of Hematology and Oncology Shanghai Children's HospitalShanghai Jiao Tong UniversityNo.24lane 1400West Beijing RoadShanghai 200040China

Background The prognosis for relapsed or refractory acute myeloid leukemia(RR-AML)in children is poor,and the preferred salvage chemotherapy is *** regimen is cladribine,cytarabine,and granulocyte-colony stimulating factor(CLAG),but little is known about its efficacy and safety in children with *** We enrolled RR-AML patients aged 0-18 years who received modified CLAG regimen for re-induction between July 1,2015 and April 1,2018,or conventional induction between August 1,2011 and April 1,*** were followed up to March 31,*** underwent allogeneic stem cell transplantation(allo-SCT)or chemotherapy after the induction of complete remission(CR).The CR rate,survival,and side effects were *** The CR rate for induction was 66.7%after one cycle and 75.0%after two cycles of the CLAG regimen in 12 *** nine children who received conventional chemotherapy had a CR rate of 22.2%after one cycle and 33.3%after two cycles(P=0.087 ***).The 3-year event-free survival(EFS)of the CLAG group and the conventional treatment group were 44.4±15.7%and 22.2±13.8%(P=0.112).The 3-year overall survival of the two groups were 59.5±16.2%and 22.2%±13.8%(P=0.057).The 3-year EFS for allo-SCT and chemotherapy after CLAG regimen was 66.7±19.2%and 25.0±21.7%(P=0.015).A single case of chemotherapy-related death was *** Our data suggest a promising CR rate using CLAG salvage treatment in childhood ***-SCT after CR may improve the long-term outcome in these patients.

关键词： Acute myeloid leukemia Children Cladribine Refractory Relapsed