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Chinese Journal of Aeronautics 2006年第B12期19卷 167-172页

作者： shan Lian-wei ZHANG xian-you DONG Li-min WU Ze HAN Zhi-dong FU Xing-hua HOU Wen-ping Department of Materials Science and Engineering Harbin University of Science and Technology Harbin 150040 China Department of Materials Science and Engineering Jinan University Jinan 250022 China

Sr05Ba0.5-xBixTiO3 （BST） thin films were fabricated on a Pt/SiO2/Si substrate by the sol-gel method. Then follows an investigation of the influeoces of bismuth （Bi） on the microstructures and the dielectric properties of Sr0.5Ba0.5-xBixTiO3 （BST） thin films. The microstructures of the BST thin films were examined by the XRD and the TEM techniques. Tetragonal perovskite crystal grains were observed in BST thin films. Increasing Bi^3＋ doping ration in BST will lead to decrease of the grain size. It is found that Bi^3＋ doping decreases the dielectric loss and improves the frequency dispersion of the BST thin films. Not only is compressed the peak of temperature-dependence of dielectric constant of Bi^3＋-doped BST thin films but also moves into the low-temperature region. Moreover, the average Curie tem- perature decreases gradually with the Bi^3＋ contents increasing.

关键词： BST thin films Bi doping characteristic microstructure

Catalyzed oxidation of 2,6-dimethylphenol in Triton X-100 micellar solution

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Chinese Chemical Letters 2007年第3期18卷 349-351页

作者： Jie Zhu xiang Guang Meng Hai Dong Wang shan Dong Liu Qin Hui Pang Juan Du xian Cheng Zeng College of Chemistry Sichuan University Chengdu 610064 China Bio-Chemistry Experimental Center Jiaxing College Jiaxing 314001 China College of Physics Science Qingdao University Qingdao 266071 China

The oxidative coupling reaction of 2,6-dimethylphenol with H202 catalyzed by a copper（H） Schiff complex in aqueous and Triton X-100 micellar solution under mild conditions was investigated. The kinetics of formation of 3,3＇,5,5＇-tetramethyl-4,4＇- diphenoquinone （DPQ） was studied. Rate constant k2 were obtained. The optimum pH for DPQ generation reaction is 7.25. The main product was DPQ in aqueous buffer solution, but PPE and the oxidized products of PPE remained in Triton X-100 micellar solution.

关键词： 2,6-Dimethylphenol Oxidative coupling Micelle Kinetics

Determination of Standard Molar Enthalpies of Formation for "White Powdery Tungstic Acid" and for Dodecatungstophosphoric Acid by Solution Calorimetry

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Chemical Research in Chinese Universities 1993年第1期9卷 13-17页

作者： WANG ai-ming Cai xian-e ZHU Jing Gu Yi-dong(Department of Chemistry, Fudan University, shanghai 200433)

'White powdery tungstic acid' has been used for preparing various types of tungsten-containing compounds due to its high reactivity. The present paper covers the standard molar enthalpies of formation, △H0/f of three tungsten- containing acids. The values found for 'white powdery tungstic acid' WO3·1. 68H2O, 'yellow tungstic acid' WO3·1. 20H2O and dodecatungstophosphoric acid H3(PW12O40)·25H2O at 298. 15 K were-(1312±1), - (1192±1) and -(18150±13) kJ mol-1, respectively.

关键词： Enthalpy of formation Tungstic acid Dodecatungstophosphoric acid Solution calorimetry

Ginsenoside Rb1 protects dopaminergic neurons from inflammatory injury induced by intranigral lipopolysaccharide injection

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Neural Regeneration Research 2019年第10期14卷 1814-1822页

作者： Da-Wei Li Fa-Zhan Zhou xian-Chang Sun Shu-Chen Li Jin-Bin Yang Huan-Huan Sun ai-Hua Wang Department of Neurology Qianfoshan Hospital Affiliated to Shandong UniversityJinanShandong ProvinceChina Department of Neurology The People’s Hospital of XintaiXintaiShandong ProvinceChina Department of Cardiovascularology Taian Central HospitalTaianShandong ProvinceChina Department of Physiology Taishan Medical UniversityTaianShandong ProvinceChina

Accumulating studies suggest that neuroinflammation characterized by microglial overactivation plays a pivotal role in the pathogenesis of Parkinson’s *** such,inhibition of microglial overactivation might be a promising treatment strategy to delay the onset or slow the progression of Parkinson’s *** Rbl,the most active ingredient of ginseng,reportedly exerts neuroprotective effects by suppressing inflammation in *** present study aimed to evaluate the neuroprotective and anti-inflammatory effects of ginsenoside Rbl in a lipopolysaccharide-induced rat Parkinson’s disease *** were divided into four *** the control group,sham-operated rats were intraperitoneally administered normal saline for 14 consecutive *** the ginsenoside Rbl group,ginsenoside Rb1(20 mg/kg)was intraperitoneally injected for 14 consecutive days after sham *** the lipopolysaccharide group,a single dose of lipopolysaccharide was unilaterally microinjected into the rat substantial nigra to establish the Parkinson’s disease ***-injected rats were treated with normal saline for 14 consecutive *** the ginsenoside Rbl +lipopolysaccharide group,lipopolysaccharide was unilaterally microinjected into the rat substantial ***,ginsenoside Rbl was intraperitoneally injected for 14 consecutive *** investigate the therapeutic effects of ginsenoside Rbl,behavioral tests were performed on day 15 after lipopolysaccharide *** found that ginsenoside Rbl treatment remarkably reduced apomorphine-induced rotations in lipopolysaccharide-treated rats compared with the lipopolysaccharide *** investigate the neurotoxicity of lipopolysaccharide and potential protective effect of ginsenoside Rbl,contents of dopamine and its metabolites in the striatum were measured by high-performance liquid *** with the lipopolysaccharide group,ginsenoside Rbl obviously attenuated the lipopolysaccharide-induced de

关键词： nerve regeneration neurodegeneration Parkinson's disease ginsenoside Rb1 neuroinflammation lipopolysaccharide dopaminergic neuron microglia nuclear factor kappa B dopamine tyrosine hydroxylase substantia nigra neural regeneration

Five new nervogenic acid derivatives from Liparis nervosa

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Chinese Chemical Letters 2013年第8期24卷 734-736页

作者： Shuai Huang Ming-Feng Pan xian-Li Zhou Zi-Li Zhou Cui-Juan Wang Lian-Hai shan Jie Weng School of Life Science and Engineering Southwest Jiaotong University Key Laboratory of Advanced Technology of Materials Ministry of EducationSouthwest Jiaotong University

Five new nervogenic acid derivatives（1-5） have been isolated from Liparis nervosa（*** ***） *** structures were elucidated on the basis of extensive spectroscopic analysis,including 1D NMR,2D NMR,and HR-ESI-MS.

关键词： Orchidaceae Liparis nervosa Benzamide derivatives Nervogenic acid derivatives

Accumulation and Gene Expression of Anthocyanin in Storage Roots of Purple-Freshed Sweet Potato [Ipomoea batatas (L.) Lam] Under Weak Light Conditions

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Agricultural Sciences in China 2010年第11期9卷 1588-1593页

作者： HOU Fu-yun WANG Qing-mei DONG Shun-xu LI ai-xian ZHANG Hai-yan XIE Bei-tao ZHANG Li-ming Crop Research Institute Shandong Academy of Agricultural SciencesJinan 250100P.R.China

Anthocyanidin in plants, an important pigment, is of great interest to researchers, consumers, and commercial entities due to its physiological functions. Anthocyanin content and mRNA levels of anthocynin biosynthesis genes were investigated in storage root of different purple-fleshed sweet potatoes (PFSP) genotypes to understand the regulation mechanism of anthocyanin under weak light conditions. Anthocyanin content, its amount of accumulation, and the expression of CHS, DFR, F3H, GT, and ANS genes in the PFSP storage root under weak light conditions were studied. The results demonstrated that the anthocyanin content of the treatments was decreased and was obviously lower than that of the control until 30 days after shading in Ayamurasaki, while it was lower than that of the control from the beginning of shading in Jishu 18. Their accumulation rates of both treatmeants were lower than its control before 10-20 d of shading in Jishu 18, while those of Ayamurasaki weren't in their treatments. This indicated that Jishul 8 is more sensitive to light as compared to Ayamuraska. Under the different weak light conditions, mRNA levels for ibCHS, ibF3H, ibDFR, and ibANS were obviously decreased, while the expression of ibGT was increased. These results indicated that anthocyanin content was regulated by light at the mRNA levels and the enzymatic level in sweet potato. Therefore, the development dynamic response to anthocyanin content varied in different genotypes of PFSP, and mRNA levels of anthocyanin biosynthesis were inhibited under the weak light condition.

关键词： anthocynin sweet potato storage root weak light

Endoscopic retrograde cholangiopancreatography in elderly patients: Difficult cannulation and adverse events

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World Journal of Clinical Cases 2020年第14期8卷 2988-2999页

作者： Fatema Tabak Hui-shan Wang Quan-Peng Li xian-Xiu Ge Fei Wang Guo-Zhong Ji Lin Miao Institute of Digestive Endoscopy and Medical Centre for Digestive Disease Second Affiliated Hospital of Nanjing Medical UniversityNanjing 210011Jiangsu ProvinceChina

BACKGROUND Endoscopic retrograde cholangiopancreatography(ERCP)is a valuable therapeutic technique for pancreatobiliary diseases,and its application in the elderly is no longer ***,a higher incidence of procedure difficulty and periprocedural adverse events might be expected in elderly patients due to the presence of other medical disorders and the poor general condition of this *** To evaluate the incidence,causes,and management of difficult biliary cannulation during ERCP in elderly patients and the role of difficult cannulation as a risk factor for adverse *** A total of 614 patients who underwent ERCP during the study period were prospectively studied and divided into two groups based on their *** hundred and forty-six patients were aged 80 years or older and 468 patients were aged less than 80 *** primary outcome measurements were cannulation difficulty,cannulation success rate,ERCP procedure time,and related adverse *** There was no difference in the incidence of difficult cannulation among the two groups(32.9%vs 34.4%,P=0.765),as well as in the cannulation success rate(96.6%vs 96.8%,P=0.54).The cannulation techniques were shown to be safe and efficient in achieving successful *** regression analysis showed that patients aged 80 years or older were not associated with increased adverse events;however,difficult cannulation cases[adjusted odds ratio(AOR)=3.478;95%confidence interval(CI):1.877-6.442;P<0.001]and patients with Charlson Comorbidity Index≥2(AOR=1.824;95%CI:0.993-3.349;P=0.045)were more likely to develop adverse *** contrast,other factors including age≤65(AOR=3.460;95%CI:1.511-7.922;P=0.003),female gender(AOR=2.362;95%CI=1.089-5.124;P=0.030),difficult cannulation(AOR=4.527;95%CI:2.078-9.860;P<0.001),and patients with cholangitis(AOR=3.261;95%CI:1.204-8.832;P=0.020)were strongly associated with a higher rate of post-ERCP *** Advanced age has not been prove

关键词： Endoscopic retrograde cholangiopancreatography Difficult cannulation Cannulation techniques Elderly Adverse events Post-endoscopic retrograde cholangiopancreatography pancreatitis

Robot-assisted gallbladder-preserving hepatectomy for treating S5 hepatoblastoma in a child: A case report and review of the literature

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World Journal of Clinical Cases 2019年第7期7卷 872-880页

作者： Di-xiang Chen shan-Jie Wang Ya-Nan Jiang Mu-Chuan Yu Jun-Zhen Fan xian-Qiang Wang Department of Pediatrics PLA General Hospital Department of Hepatobiliary Sixth People’s Hospital of Jinan Affiliated to Jining Medical School Beijing University of Chinese Medicine Department of Pathology PLA General Hospital

BACKGROUND Hepatoblastoma(HB) is the most common hepatic malignant tumour in children,accounting for approximately 50%-60% of primary hepatic malignant tumours in children, mostly in children under 3 years old. In Western countries, the incidence of hepatoblastoma is approximately 1-2/100000. Da Vinci surgical system is fast becoming a key instrument in microinvasive surgery. The past decade has seen the rapid development of robot-assisted laparoscopy, which expends many fields including the liver surgery. This paper discusses the significance and feasibility of robot-assisted gallbladder-preserving hepatectomy for treating S5 hepatoblastoma in children. The aim of this essay is to compare the safety and effectiveness of robotic surgery with conventional laparoscopic surgery, and explore the meaning of preservation of the gallbladder by sharing this *** SUMMARY A 3-year-old child with a liver mass in the 5 th segment was treated using the Da Vinci surgical system, and the gallbladder was retained. The child was admitted to the hospital for 20 d for the discovery of the right hepatic lobe *** revealed a low echo mass, 46 mm × 26 mm × 58 mm in size,indicating hepatoblastoma in the right lobe, and enhanced computed tomography showed continuous enhancement of iso-low-density lesions with different sizes and nodules and unclear boundaries, without the dilation of the intrahepatic bile duct, no enlargement of the gallbladder, and uniform thickness of the wall. The diagnosis was "liver mass, hepatoblastoma". It was decided to perform S5 liver tumour resection. During surgery, the tumour and gallbladder were isolated first, and the gallbladder could be completely separated from the tumour surface without obvious infiltration; therefore, the gallbladder was preserved. The cutting line was marked with an electric hook. The hepatic duodenal ligament was blocked with a urethral catheter using the Pringle method, and the tumour and part of the normal liver

关键词： Hepatectomy Robotic surgery Pediatrics Hepatoblastoma Case report

Synthesis and physiochemical property evaluation of carbamate derivatives of scutellarin methyl ester

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Chinese Chemical Letters 2013年第4期24卷 338-340页

作者： Feng-Jie Jiang Xiao-Zhong Fu shan-Wu Wang Yong Huang Wen Zhou ai-Min Wang Yong-Lin Wang School of Pharmacy Guiyang Medical College

A series of carbamate prodrugs of scutellarin methyl ester （4a-4e） were prepared in the presence of bis（trichloromethyl） carbonate （BTC） with scutellarin methyl esters and L-amino acid tert-butyl ester hydrochloride as starting materials. In vitro stability and aqueous solubility of target compounds were evaluated. The results indicated that compounds 4d and 4e have higher solubility and in vitro stability than scutellarin respectively.

关键词： ScutellarinBis(trichloromethyl) carbonatePhysiochemical property

Effect of void size and Mg contents on plastic deformation behaviors of Al-Mg alloy with pre-existing void:Molecular dynamics study

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Chinese Physics B 2022年第6期31卷 580-588页

作者： Ning Wei ai-Qiang Shi Zhi-Hui Li Bing-xian Ou Si-Han Zhao Jun-Hua Zhao Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan UniversityWuxi 214122China China Aerodynamics Research and Development Center Mianyang 621000China National Laboratory for Computational Fluid Dynamics Beijing 100191China National Graphene Products Quality Supervision and Inspection Center Special Equipment Safety Supervision Inspection Institute of Jiangsu ProvinceWuxi 214174China

The plastic deformation properties of cylindrical pre-void aluminum-magnesium(Al-Mg)alloy under uniaxial tension are explored using molecular dynamics simulations with embedded atom method(EAM)*** factors of Mg content,void size,and temperature are *** results show that the void fraction decreases with increasing Mg in the plastic deformation,and it is almost independent of Mg content when Mg is beyond 5%.Both Mg contents and stacking faults around the void affect the void *** phenomena are explained by the dislocation density of the sample and stacking faults distribution around the *** variation trends of yield stress caused by void size are in good agreement with the Lubarda ***,temperature effects are explored,the yield stress and Young’s modulus obviously decrease with *** results may enrich and facilitate the understanding of the plastic mechanism of Al-Mg with defects or other alloys.

关键词： Al-Mg alloys molecular dynamics nanovoid plastic deformation