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A Study of Pt^(4+)Adsorption and Its Reduction by Bacillus Megaterium D01

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Chemical Research in Chinese Universities 2000年第3期16卷 246-249页

作者： LIU yue ying FU Jin kun ZHOU zhao hui yu Xin sheng YAO Bing xin Department of Biology Department of Chemistry Xiamen UniversityXiamen 361005P.R.China

The properties of Pt 4+ adsorption and its reduction by Bacillus megaterium D01 were studied by means of ICP, anode stripping voltammetry, TEM, IR and XPS. The results of ICP analyses showed that the Pt 4+ adsorptive efficiency of the strain D01 was as high as 94.3% under the conditions of 100 mg Pt 4+ /L, 1 g biomass/L, pH 3.5 and at 30 ℃ for 24 h. Moreover, it was confirmed from anode stripping voltammetry that the strain D01 possessed a strong reducibility. The TEM analysis indicated that the strain D01 was able to adsorb and reduce Pt 4+ to Pt 0, small particles. The XPS result further supported the reduction of Pt 4+ to Pt 2+ , followed by the further recuction to Pt 0. The IR spectrum implied that D01 biomass adsorption of Pt 4+ may result in the complexation of the CO bond to the Pt species.

关键词： Biosorption Bioreduction Platinum Bacillus megaterium

Water Modeling of Twin-Roll Strip Casting

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Journal of Iron and Steel Research International 2006年第1期13卷 14-17页

作者： WANG Bo ZHANG Jie-yu FAN Jun-fei zhao Shun-li FANG yuan AN Sheng-li School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China Material and Metallurgical School Inner Mongolia University of Science and Technology Baotou 014010 Inner Mongolia China College of Materials Science and Engineering Shanghai University Shanghai 200072 China Research Institute Baoshan Iron and Steel Co Ltd Shanghai 201900 China

Twin-roll strip casting is regarded as a prospective technology of near net shape continuous casting. The fluid flow field and level fluctuation in the pool have a strong influence not only on composition and temperature homogeneity of pool, but also on the strip quality. A 1 ： 1 water model of a twin-roll strip caster was set up based on the criteria of Froude number and Reynold number similarity. The level fluctuation was measured. The influence of pool depth, casting speed and feeding system configuration on level fluctuation in the pool was studied. The experimental results provided a basis for the optimization of feeding system and process parameters.

关键词： twin-roll strip casting level fluctuation water modeling

Prenatal ultrasound diagnosis of congenital infantile fibrosarcoma and congenital hemangioma: Three case reports

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World Journal of Clinical Cases 2023年第30期11卷 7403-7412页

作者： Ru-Na Liang Jue Jiang Jie Zhang Xi Liu Miao-Yan Ma Qian-Long Liu Li Ma Lei Zhou yun Wang JuanWang Qi Zhou shan-shan yu Department of Ultrasound The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi'an 710004Shaanxi ProvinceChina Department of Ultrasound Ankang Central HospitalAnkang 725000Shaanxi ProvinceChina Department of Pathology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061Shaanxi ProvinceChina Department of Pediatric Surgery The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004Shaanxi ProvinceChina Department of Pathology The Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'an 710004Shaanxi ProvinceChina Department of Ultrasound Xi’an Fourth HospitalXi’an 710005Shaanxi ProvinceChina Department of Ultrasound Xijing HospitalXi'an 710032Shaanxi ProvinceChina Department of Ultrasound The Second Hospital of Xi'an Jiaotong UniversityXi'an 710004Shaanxi ProvinceChina

BACKGROUND Congenital infantile fibrosarcoma(CIF)and congenital hemangioma(CH)have similarities on prenatal ultrasound and are *** SUMMARY We report 3 cases of fetuses with superficial hypervascular tumors,confirmed by postnatal pathology as CIF(1 case)and CH(2 cases,including 1 in a twin fetus).In Case 1,a mass with a rich blood supply in the fetal axilla was discovered by prenatal ultrasound at 28+0 wk of *** postpartum pathological diagnosis was CIF,the mass was surgically removed,and the prognosis of the child was *** Case 2,at 23+1 wk of gestation,a mass was discovered at the base of the fetus’s thigh on prenatal *** postpartum pathological diagnosis was *** conservative treatment,the mass shrank *** 3 occurred in a twin *** 30+0 wk of gestation,prenatal ultrasound revealed a bulging mass with a rich blood supply on the abdominal wall of one of the *** weeks later,the affected fetus died,and the unaffected baby was successfully delivered by emergency cesarean *** affected fetus was pathologically diagnosed with *** Prenatal ultrasound can provide accurate information,such as the location,size and blood supply of a surface mass in a *** found similarities between CIF and CH in prenatal ultrasound *** it is difficult to distinguish these conditions by prenatal ultrasound alone,for superficial hypervascular tumors that rapidly increase in size in a short period,close ultrasound monitoring of the fetus is required to quickly address possible adverse outcomes.

关键词： Congenital infantile fibrosarcoma Congenital hemangiomas Prenatal ultrasound Fetal tumor Case report

Synthesis of a New Aromatic Dianhydride Containing Pyridine Ring and Related Polyimide

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Chinese Chemical Letters 2006年第3期17卷 305-306页

作者： Xiao Long WANG Shu Jiang ZHANG Yan Feng LI Tao MA yu SHAO Xin zhao State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000

A new aromatic dianhydride monomer containing pyridine moiety, 2,6-bis[4＇-（3＂,4＂- dicarboxyphenoxy）benzoyl]-pyridine dianhydride （Md）, was synthesized in four steps, starting from 2,6-pyridinedicarboxyl chloride. A novel pyridine-containing polyimide was prepared via polycondensation of Md with ODA by two-step method. The resulting polyimide exhibits excellent solubility, film-forming capability and high thermal resistance.

关键词： Polyimides pyridine-containing monomer synthesis aromatic dianhydride.

I/O Efficient Early Bursting Cohesive Subgraph Discovery in Massive Temporal Networks

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Journal of Computer Science & Technology 2022年第6期37卷 1337-1355页

作者： yuan Li Jie Dai Xiao-Lin Fan yu-Hai zhao Guo-Ren Wang School of Information Science and Technology North China University of TechnologyBeijing 100144China School of Computer Science and Engineering Northeastern UniversityShenyang 110169China School of Computer Beijing Institute of TechnologyBeijing 100081China

Temporal networks are an effective way to encode temporal information into graph data *** the bursting cohesive subgraph(BCS),which accumulates its cohesiveness at the fastest rate,is an important problem in temporal *** BCS has a large number of applications,such as representing emergency events in social media,traffic congestion in road networks and epidemic outbreak in ***,existing methods demand the BCS lasting for a time interval,which neglects the timeliness of the *** this paper,we design an early bursting cohesive subgraph(EBCS)model based on the k-core to enable identifying the burstiness as soon as *** find the EBCS,we first construct a time weight graph(TWG)to measure the bursting level by integrating the topological and temporal ***,we propose a global search algorithm,called GS-EBCS,which can find the exact EBCS by iteratively removing nodes from the ***,we propose a local search algorithm,named LS-EBCS,to find the EBCS by first expanding from a seed node until obtaining a candidate k-core and then refining the k-core to the result subgraph in an optimal time ***,considering the situation that the massive temporal networks cannot be completely put into the memory,we first design an I/O method to build the TWG and then develop I/O efficient global search and local search algorithms,namely I/O-GS and I/O-LS respectively,to find the EBCS under the semi-external *** experiments,conducted on four real temporal networks,demonstrate the efficiency and effectiveness of our proposed *** example,on the DBLP dataset,I/O-LS and LS-EBCS have comparable running time,while the maximum memory usage of I/O-LS is only 6.5 MB,which is much smaller than that of LS-EBCS taking 308.7 MB.

关键词： early bursting cohesive subgraph(EBCS) I/O efficient algorithm semi-external model temporal network

Investigation on correlation between expression of CD58 molecule and severity of hepatitis B

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World Journal of Gastroenterology 2006年第26期12卷 4237-4240页

作者： Li Sheng Jie Li Bao-Tai Qi yu-Qiang Ji zhao-Jun Meng Ming Xie Department of Pathogenic Microbiology and Immunology Medical School of Xi'an Jiaotong University Xi'an 710061 Shaanxi Province China

AIM： To investigate the correlation between expression of CD58 and severity of hepatitis B. METHODS： The level of soluble CD58 （sCD58） in serum of patients with hepatitis B was detected by enzymelinked immunosorbent assay. The level of expression of membrane CD58 molecule in PBMC was detected by direct immunofluorescence. The levels of serumal TBIL, DBIL, IBIL, ALT and AST were detected by the automated biochemistry analyzer as well. RESULTS： The levels of sCD58 in serum and membrane CD58 molecule in PBMC of patients with hepatitis B were significantly higher than that in normal controls （P 〈 0.05）. Level of CD58 was related to the levels of serumal TBIL, DBIL, IBIL, ALT and AST. CONCLUSION： The level of CD58 molecule （in both serum and PBMC form） of patients with hepatitis B is related to the degree of liver damage.

关键词： Hepatitis B, CD58 Liver damage

A new angelol-type coumarin glucoside from Angelica pubescens

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Chinese Chemical Letters 2008年第10期19卷 1237-1239页

作者： Xi Fei Ding Xu Feng yun Fa Dong Xing Zeng zhao yu Chen Ming Wang Jiangsu Center for Research ＆ Development of Medicinal Plants Jiangsu Institute of Botany China Academic of Science Nanfing Botanical GaMen Mere. Sun Yat-Sen Nanfing 210014 China

A new angelol-type coumarin glucoside, 6-[（1R,2R）-1, 2-dihydroxy-3-β-D-glucosyloxy-3-methylbutyl]-7-methoxycoumarin, was isolated from the roots of Angelica pubescens. Its structure was elucidated on the basis of s... 详细信息

关键词： Angelica pubescens UmbeUiferae Coumarin glucoside 6-[(1R,2R)-1,2-Dihydroxy-3-β-D-glucosyloxy-3-methylbutyl]-7-methoxy-coumarin

Synthesis and thermal properties of novel calix[4]arene derivatives containing 1,2,3-triazole moiety via K_2CO_3-catalyzed 1,3-dipolar cycloaddition reaction

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Chinese Chemical Letters 2014年第10期25卷 1346-1348页

作者： Zai-Gang Luo yu zhao Feng Xu Chao Ma Xue-Mei Xu Xiao-Mei Zhang College of Chemical Engineering Anhui University of Science & Technology

Two calix[4]arene derivatives containing 1,2,3-triazole moiety were synthesized via K2CO3-catalyzed1,3-dipolar cycloaddition reaction between calix[4]arene-based azide and active methylene compounds in good *** structures of the two compounds synthesized herein were fully confirmed by 1HNMR,,（13）C NMR,and MS（ESI）.The thermal analysis showed that the mass losses of the synthesized compounds 4 and 5 containing 1,2,3-triazole groups are similar to each other.

关键词： Calixarene derivative 1 2 3-Triazole 1 3-Dipolar cycloaddition Synthesis

Functional Liver Imaging Score Derived from Gadoxetic Acid-enhanced MRI Predicts Cachexia and Prognosis in Hepatocellular Carcinoma Patients

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Current Medical Science 2024年第5期44卷 1018-1025页

作者： Xin-xiang LI Bing LIU yu-fei zhao Yang JIANG Ying CUI Xin-gui PENG Nurturing Center of Jiangsu Province for State Laboratory of AI Imaging&Interventional Radiology Department of RadiologyZhongda HospitalSchool of MedicineSoutheast UniversityNanjing210009China Department of Radiology The First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei230001China

Objective Cachexia occurs in approximately half of hepatocellular carcinoma(HCC)patients as the disease progresses and is correlated with a poor ***,early identification of HCC patients at risk of developing cachexia and their prognosis is *** study investigated the functional liver imaging score(FLIS)derived from gadoxetic acid-enhanced magnetic resonance imaging(MRI)to identify cachexia in HCC patients and their *** Pretreatment clinical and MRI data from 339 HCC patients who underwent gadoxetic acid-enhanced MRI scans were retrospectively *** weights were recorded for 6 months following the MRI scan to diagnose *** FLIS was calculated as the sum of the enhancement quality score,the excretion quality score,and the portal vein sign quality score.A Cox proportional hazards model was used to determine the significant factors affecting overall survival(OS).Multivariable logistic regression was then conducted to identify variables predicting cachexia in HCC patients,which were subsequently used to predict *** Cox regression analysis revealed a significant association between cachexia and worse *** FLIS(0–4 vs.5–6 points)(OR,9.20;95%CI:4.68–18.10;P100 ng/mL(OR,4.08;95%CI:2.13–7.83;P<0.001)emerged as significant predictors of cachexia in patients with ***,FLIS(0–4 vs.5–6 points)(HR,1.73;95%CI:1.19–2.51;P=0.004)was significantly associated with *** in the FLIS 0–4 points group had shorter OS than those in the FLIS 5–6 points group[20 months(95%CI,14.7–25.3)vs.43 months(95%CI,27.7–58.3);P=0.001].Conclusion Cachexia was associated with worse *** functional liver imaging score emerged as a significant predictor of cachexia in HCC patients and their prognosis.

关键词： cachexia hepatocellular carcinoma functional liver imaging score magnetic resonance imaging