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Molar Mass Dispersity Control by lodine-mediated Reversibledeactivation Radical Polymerization

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Chinese Journal of Polymer Science 2021年第9期39卷 1155-1160页

作者： jin-ying wang Yuan-Yuan Ni Jian-Nan Cheng Li-Fen Zhang Zhen-Ping Cheng State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Suzhou Key Laboratory of Macromolecular Design and Precision SynthesisCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

Dispersity(D)of polymers has a great effect on the properties of polymeric materials,and therefore how to control θ is very important but still a huge challenge in polymer synthesis,especially for reversible-deactivation radical polymerization(RDRP)***,we successfully developed a novel strategy to adjust D of polymers by visible light-controlled reversible complexation mediated living radical polymerizatio n(RCMP)and combi nation of single-electron transfer-degenerative chain tran sfer living radical polymerization(SET-DTLRP)at room *** RCMP system,2-iodo-2-methylpropionitrile(CP-I)and ethyl 2-iodo-2-phenylacetate(EIPA)were used as alkyl iodide initiators,by using methyl methacrylate(MMA)as the model monomer and n-butylacrylate(BA)as the end-capping reagent to regulate D of ***,we successfully prepared the block copolymer PMMA-b-PBA with adjustable D by reactivating the polymer end-chains via SET-DTLRP in the presence of copper wire,fully dem on strati ng that it is a promising strategy that can keep the"living"feature of polymers while regulating their molar mass dispersities easily.

关键词： Dispersity control lodine-mediated reversible-deactivation radical polymerization(RDRP) Visible light-controlled polymerization Reversible complexation mediated living radical polymerization(RCMP) Single-electron transfer-degenerative chain transfer living radical polymerization(SET-DTLRP)

White organic light-emitting devices based on fac tris(2-phenylpyridine) iridium sensitized 5,6,11,12-tetraphenylnap-hthacene

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Optoelectronics Letters 2008年第3期4卷 205-208页

作者： DING Gui-ying wang jin JIANG Wen-long wang jing wang Li-zhong CHANG Xi College of Information Technology Jilin Normal University Siping 136000China

We have fabricated the white organic light-emitting devices （WOLEDs） based on 4,4＇ -bis（2,2 -diphenyl vinyl）-1,1＇ - biphenyl （DPVBi） and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene （rubrene）. The device structure is ITO/2T-NATA （20 nm）/NPBX （20 nm）/CBP： x%Ir（ppy）3：0.5% rubrene （8 nm）/NPBX （5 nm）/DPVBi （30 nm）/Alq（30 nm）/LiF（0.5 nm）/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris （2-phenylpyridine） iridium [Ir（ppy）3], acts as a yellow light-emitting layer, and N,N＇ -bis- （1-naphthyl）- N,N＇ -diphenyl -1, 1＇ -biphenyl-4,4＇ -diamine （NPBX） acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir （PPY）3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.

关键词：光散射铱元素有机物磷光

Early detection of circulating tumor DNA and successful treatment with osimertinib in thr790met-positive leptomeningeal metastatic lung cancer:A case report

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World Journal of Clinical Cases 2022年第22期10卷 7968-7972页

作者： Li-Qing Xu ying-jin wang Sheng-Li Shen Yao Wu Hong-Zhou Duan Department of Neurosurgery Peking University First HospitalBeijing 100034China

BACKGROUND Patients diagnosed with non-small-cell lung cancer with activated epidermal growth factor receptor mutations are more likely to develop leptomeningeal(LM)metastasis than other types of lung cancers and have a poor *** diagnosis and effective treatment of leptomeningeal carcinoma can improve the *** SUMMARY A 55-year-old female with a progressive headache and vomiting for one month was admitted to Peking University First *** was diagnosed with lung adenocarcinoma with osseous metastasis 10 months prior to *** growth factor receptor(EGFR)mutation was detected by genomic examination,so she was first treated with gefitinib for 10 months before acquiring ***-free cerebrospinal fluid(CSF)circulating tumor DNA detection by next-generation sequencing was conducted and indicated the EGFR-Thr790Met mutation,while biopsy and cytology from the patient’s CSF and the first enhanced cranial magnetic resonance imaging(MRI)showed no positive findings.A month later,the enhanced MRI showed linear leptomeningeal enhancement,and the cytology and biochemical examination in CSF remained ***,osimertinib(80 mg/d)was initiated as a second-line treatment,resulting in a good response within a *** This report suggests clinical benefit of osimertinib in LM patients with positive detection of the EGFR-Thr790Met mutation in CSF and proposes that the positive findings of CSF circulating tumor DNA as a liquid biopsy technology based on the detection of cancer-associated gene mutations may appear earlier than the imaging and CSF findings and may thus be helpful for ***,the routine screening of chest CT with the novel coronavirus may provide unexpected benefits。

关键词： Non-small cell lung cancer Epidermal growth factor receptor mutation Circulating tumor DNA detection Leptomeningeal carcinomatosis Osimertinib Case report

RUTHENIUM　COORDINATION　COMPOUNDS　WITH　POLYPYRIDYL：Ⅱ　THE　INTERACTION　OF　RUTHENIUM（Ⅱ）MIXED－LIGAND　COORDINATION　COMPOUNDS　CONTAINING　PYRIDO［3，2－f］［1，7］PHENANTHROLINE　WITH　CALF　THYMUS　DNA

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Chinese Chemical Letters 1995年第4期6卷 353-356页

作者： Lei wang Jian ying ZHOU jin ying wang Tian Xian ZEMG Liang Nian JI(Department of Chemistry. Zhongshan University, Guangzhou. 510275)(State Key Labofatory of Coordination Chemistry, Manjing University . 210008) Zhongshan Univ Dept Chem Guangzhou 510275 Peoples R China Nanjing Univ State Key Lab Coordinat Chem Nanjing 210008 Peoples R China

The binding of Rulpdphen2+ to calf thymus DNA was inveatigated using absorption fluorescence and CD spectroscopies, where pdphen is the planar ligand pyrido[3. 2- f] [1, 7] phenanthroline,L=2, 2' -bipyridine, phenanthroline. 2, 9-dimethyl phenanthroline and 5-nitro-phenanthroline. All coordination componds show abaorption typochromicity associated with binding to calf thymus DNA .Ru(bipy) pdphen3+ and Rn (phen) pdphen+ also show fluoreacence intensities and excited state lifetime Increase becanse of the interaction of coordination compounds with calf thymus DNA .CD apectra of dialylatea indicate enantioselectivity associated withe binding to DNA .

关键词： DNA THYMUS COMPOUNDS CALF

An organic light-emitting devices of highly efficient white phosphor using an electron/exciton blocker

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Optoelectronics Letters 2008年第1期4卷 26-29页

作者： JIANG Wen-long , DING Gui-ying, wang jin,wang jing , wang Li-zhong , CHANG Xi,HAN Qiang , wang Hong-mei , and ZHAO Xiao-hong College of information Technology , Jilin Normal University, Siping 136000,China College of information Technology Jilin Normal University Siping 136000China

Highly efficient white phosphorescent organic light-emitting devices (WOLEDs) was fabricated using an electron/exciton blocker. The device structure is ITO/2T-NATA(25 nm)/ NPBX(25-dnm)/CBP:5%Ir(ppy)3:0.5%Rubrene(8 nm)/NPBX(dnm)/ DPVBi(30 nm)/TPBi(20 nm)/Alq(10nm)/LiF(1nm)/Al, in which N,N '-bis- (1-naphthyl)- N,N '-diphenyl -1, 1 '- bi- phenyl-4,4 '-diamine (NPBX) functions as a hole transport layer and electron/exciton blocker, 4,4,N,N '- dicarbazolebiphenyl (CBP) is host, 4,4'-bis(2,2 -diphenyl vinyl)-1,1 '-biphenyl (DPVBi) is blue fluorescent dye, 5,6,11, 12,-tetraphenylnaphthacene (rubrene) is fluorescent dye, factris (2-phenylpyridine) iridium (Ir(ppy)3) is phosphorescent sensitizer and tris(8-hydroxyquinoline) aluminum (Alq3) is an electron transport layer. The WOLEDs have obtained white light emission by adjusting the thickness of NPBX , when the concentration of Ir(ppy)3 is 5-wt% and rubrene is 0.5-wt%, respectively, the thickness of the doped emissive layer is 8 nm, the WOLEDs show a maximum luminous efficiency is 11.2 cd/ A with d of 10 nm at 7 V and a maximum luminance of 28170 cd/m2 at 17 V, the CIE coordinates is (0.***.0.42), which is in white region.

关键词：电子/激子阻断器白磷有机光发射装置制作方法

LC-ESI-MS/MS,a modified method for simultaneous quantification of isoflavonoids,flavonoids,alkaloids and saponins in a Chinese herbal preparation Gegen-Qinlian decoction

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Journal of Pharmaceutical Analysis 2010年第3期22卷 141-148页

作者： ying wang,jin Yuan,Rui An,Xin-Hong wang,Yue-Ming Ma Department of Chemistry,Shanghai University of Traditional Chinese Medicine School of Pharmacy,Shanghai 201203,China Department of Chemistry Shanghai University of Traditional Chinese Medicine School of Pharmacy Shanghai 201203 China

A sensitive and reliable liquid chromatography-electrospray ionisation-tandem mass spectrometry(LC-ESI-MS/MS)method was established to simultaneously quantitate four categories of compounds(isoflavonoids,flavonoids,alkaloids and saponins)in Gegen-Qinlian decoction(GQD).These compounds were separated by a Shiseido CAPCELL PAK C18 column with a linear gradient consisting of 0.1%(v/v)formic acid in water(A)and 0.1%(v/v)formic acid in acetonitrile(B),and delivered at a flow rate of 0.3 mL/*** the analytes were determined by electrospray positive ionization tandem mass spectrometry in a multiple reaction monitoring(MRM)***,accuracy,precision,recovery and stability of the method were evaluated with the validation over the range of 4.0-538 5 ng/*** proposed method was applied to the analysis of a Chinese herbal preparation GQD successfully.

关键词： Gegen-Qinlian decoction(GQD) liquid chromatography-electrospray ionization-tandem mass spectrometry(LC-ESI-MS/MS) quantification

Application of Particle Swarm Optimization to Fault Condition Recognition Based on Kernel Principal Component Analysis

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International Journal of Plant Engineering and Management 2009年第3期14卷 129-135页

作者： WEI Xiu-ye PAN Hong-xia HUANG jin-ying wang Fu-jie College of Mechanical Engineering and Automation North University of China Taiyuan 030051 P. R. China

Panicle swarm optimization （PSO） is an optimization algorithm based on the swarm intelligent principle. In this paper the modified PSO is applied to a kernel principal component analysis （ KPCA ） for an optimal kernel function parameter. We first comprehensively considered within-class scatter and between-class scatter of the sample features. Then, the fitness function of an optimized kernel function parameter is constructed, and the particle swarm optimization algorithm with adaptive acceleration （CPSO） is applied to optimizing it. It is used for gearbox condi- tion recognition, and the result is compared with the recognized results based on principal component analysis （PCA）. The results show that KPCA optimized by CPSO can effectively recognize fault conditions of the gearbox by reducing bind set-up of the kernel function parameter, and its results of fault recognition outperform those of PCA. We draw the conclusion that KPCA based on CPSO has an advantage in nonlinear feature extraction of mechanical failure, and is helpful for fault condition recognition of complicated machines.

关键词： particle swarm optimization, kernel principal component analysis, kernel function parameter, feature extraction gearbox condition recognition

基于干扰观测器的级联气动肌肉肘关节滑模控制

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兵工学报 2017年第4期38卷 793-801页

作者：王斌锐沈国阳金英连王凌中国计量大学机电工程学院浙江杭州310018

肘关节的设计和控制是仿人手臂的研究重点。为了得到肘关节的模型,首先搭建测试平台对单根气动肌肉进行静态建模,再建立级联式肘关节的名义模型,采用最小二乘参数辨识得到模型的参数。基于Luenberger干扰观测器设计了滑模控制律。分别采... 详细信息

肘关节的设计和控制是仿人手臂的研究重点。为了得到肘关节的模型,首先搭建测试平台对单根气动肌肉进行静态建模,再建立级联式肘关节的名义模型,采用最小二乘参数辨识得到模型的参数。基于Luenberger干扰观测器设计了滑模控制律。分别采用PID控制、滑模控制和基于干扰观测器的滑模控制对肘关节位置跟踪进行仿真和实验,在仿人手臂末端夹持半瓶矿泉水作为负载和外界不确定性干扰,测试3种控制算法的性能。仿真和实验结果表明,基于干扰观测器的滑模控制位置跟踪精度和鲁棒性均优于滑模控制和PID控制。

关键词：控制科学与技术气动肌肉肘关节滑模控制干扰观测器

透明质酸钠联合Ahmed青光眼阀治疗难治性青光眼

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国际眼科杂志 2011年第1期11卷 133-134页

作者：王晋瑛高媛中国湖北省武汉市第一医院眼科 430022

目的:探讨透明质酸钠联合青光眼阀治疗难治性青光眼的中远期疗效,探讨手术并发症的预防和处理。方法:采用透明质酸钠联合青光眼阀治疗难治性青光眼27例27眼,术后随访6～22mo。结果:术前眼压46.70±9.31mmHg,术后降至20.60±7.31mmHg,视... 详细信息

目的:探讨透明质酸钠联合青光眼阀治疗难治性青光眼的中远期疗效,探讨手术并发症的预防和处理。方法:采用透明质酸钠联合青光眼阀治疗难治性青光眼27例27眼,术后随访6～22mo。结果:术前眼压46.70±9.31mmHg,术后降至20.60±7.31mmHg,视力有不同程度的提高。术后并发症1例阀门管位置欠佳,经调整后得到改善,2例前房积血,用药后吸收。结论:使用透明质酸钠联合Ahmed青光眼阀植入,可以有效地降低难治性青光眼的眼压,减少术后并发症的发生。

关键词：难治性青光眼透明质酸钠 Ahmed青光眼阀