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Synthesis, Crystal Structure and Characterization of α-(1-Benzimidazolyl)-hypnone Cobalt(Ⅱ) Complex: [CoCl(C_7H_5N_2CH_2COPh)_4]Br

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Chemical Research in Chinese Universities 2005年第4期21卷 419-422页

作者： JIANfang-fang SUNPing-ping XIAOHai-lian ZHAOPu-su NewMaterials＆FunctionCoordinationChemistryLaboratory QingdaoUniversityofScienceandTechnologyQingdao266042P.R.China

The crystal structure of [CoCl(C_7H_5N_2CH_2COPh)_4]Br has been determined by means of X-ray crystallography. The molecular structure consists of a discrete [CoCl(C_7H_5N_2CH_2COPh)_4]+ cation and one Br- anion. In the [CoCl(C_7H_5N_2CH_2COPh)_4]+ cation, the coordination geometry of the central Co atom is square-pyramidal with four tertiary N atoms of benzimidazole from four α-(benzimidazol-1-yl)-hypnone ligands in the basal position and one chloride anion in the apical position. In the solid state, [CoCl(C_7H_5N_2CH_2COPh)_4]+ and Br- anion possess intermolecular and intramolecular interactions, which stabilize the crystal structure. The characterization of the title compound were also carried out by using elemeutal analysis, FTIR, UV spectrometries and TG-DSC.

关键词： α-(1-Benzimidazolyl)-hypnone ligand Cobalt(Ⅱ) complex Mixed Cl^- and Br^- anion TG-DSC

Adaptive segmentation of digital mammograms through reinforcement learning

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光学精密工程 2005年第5期13卷 575-583页

作者： LIU Xin-yue fang Xiao-xuan HUANG lian-qing Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of SciencesChangchun 130033 China China-Japan Union Hosptial of Jilin University Changchun 130033China

An approach based on reinfocement learning for the automated segmentation is presented. The approach consists of two modules:segmentation module and learning module. The segmentation module uses the region-growing algorithm combined with the smooth filtering and the morphological filtering to segment mammograms. The learning module uses the segmentation output as the feedback to learn to select the optimal parameter settings of the segmentation algorithm according to the image properties using reinforcement learning techniques. The approach can adapt itself to various kinds of mammograms through training and therefore obviates the tedious and error-prone tuning of parameter settings manually. Quantitative test results show that the approach is accurate for several kinds of mammograms. Compared to previously proposed approaches,the approach is more adaptable to different mammograms.

关键词：适应性分割平滑性计算机控制系统程序设计

Salvianolic acid A attenuates vascular remodeling in a pulmonary arterial hypertension rat model

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中国药理学与毒理学杂志 2016年第10期30卷 1011-1012页

作者： CHEN Yu-cai YUAN Tian-yi ZHANG Hui-fang fang lian-hua du Guan-hua Beijing Key Laboratory of Drug Targets Identification and Drug Screening Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical College

OBJECTIVE The current therapeutic approaches have a limited effect on the dysregulated pulmonary vascular remodeling,which is characteristic of pulmonary arterial hypertension(PAH).In this study we exam-ined whether salvianolic acid A(SAA)extracted from the traditional Chinese medicine′Dan Shen′attenuated vascular remodeling in a PAH rat model,and elucidated the underlying *** PAH was induced in rats by injecting a single dose of monocrotaline(MCT 60 mg·kg-1,sc).The rats were orally treated with either SAA(0.3,1,3 mg·kg-1·d-1)or a positive control bosentan(30 mg·kg-1·d-1)for 4 *** and hemodynamic measurements were performed on d *** the hearts and lungs were harvested,the organ indices and pulmonary artery wall thickness were calculated,and biochemical and histochemical analysis were *** levels of apoptotic and signaling proteins in the lungs were measured using *** Treatment with SAA or bosentan effectively ameliorated MCTinduced pulmonary artery remodeling,pulmonary hemodynamic abnormalities and the subsequent increases of right ventricular systolic pressure(RVSP).Furthermore,the treatments significantly attenuated MCT-induced hypertrophic damage of myocardium,parenchymal injury and collagen deposition in the ***,the treatments attenuated MCT-induced apoptosis and fibrosis in the *** treatments partially restored MCT-induced reductions of bone morphogenetic protein typeⅡreceptor(BMPRⅡ)and phosphorylated Smad1/5 in the *** SAA ameliorates the pulmonary arterial remodeling in MCT-induced PAH rats most likely via activating the BMPRⅡ-Smad pathway and inhibiting ***,SAA may have therapeutic potential for the patients at high risk of PAH.

关键词： salvianolic acid A pulmonary artery hypertension apoptosis BMPR Ⅱ Smad vascular remolding

Synthesis, UV-curing Behavior and Surface Properties of New Fluorine-containing Aromatic Oxetane Monomers

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Chinese Journal of Polymer Science 2018年第4期36卷 521-527页

作者： Shu-Qing fang Yu-lian Pang Ying-Quan Zou College of Chemistry Beijing Normal University

In this paper, we combined high-end cationic UV-curable material with fluorinated chain obtaining a series of new fluorine-containing aromatic oxetane monomers via a mild nucleophilic substitution reaction. The structures and properties of monomers were characterized using ~1 H-NMR, ^（19） F-NMR, dynamic viscosity tests and differential scanning calorimetry（DSC）. It was determined that all of the fluorinated monomers obtained had much lower viscosity and higher thermostability after the introduction of hexafluorobenzene. Then, UV-curable coatings were prepared using four fluorine-containing aromatic oxetane monomers（FOX1-4）; the UV-curing kinetics, with three kinds of initiators, and properties of the cured films were evaluated using real-time Fourier transform infrared（FTIR） spectroscopy, water and diiodomethane contact angle tests, surface energy calculations and scanning electron microscopy（SEM）. The FTIR spectroscopy results showed that the coatings possessed excellent conversion rate（〉 99% with liquid initiator PAG-201 in 150 s）, and as the fluorine content increased, the monomers exhibited decreased mobility with the increasing viscosity and worse solubility with fluorinated monomers, resulting in a lower conversion rate. Moreover, the coatings possessed favorable hydrophobic and oleophobic properties and low surface energies owing to the fluoride chains floating to the membrane-air interface, which was also confirmed by discrete concave structures in SEM images. These new kinds of monomers can replace traditional fluorinated cationic monomers applied to the fingerprint resistant, fouling resistant, scratch resistant and anti-aging coatings, adhesives or printing ink materials.

关键词： Fluorine-containing monomers Oxetane UV-curing kinetics Surface properties

Bromate removal by gamma irradiation in aqueous solutions

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Nuclear Science and Techniques 2016年第1期27卷 44-49页

作者： Zhao-lian Ye Xue-Hui fang Hui-Qi Hou College of Chemistry and Environmental Engineering Jiangsu University of Technology Department of Environmental Science and Engineering Fudan University

Bromate(BrO_3) is a disinfection by-product in drinking water, and its removal is very difficult especially at low levels.60 Co gamma rays were used to remove BrO_3in aqueous solution in this study. The effects of absorbed doses, BrO_3initial concentration, gas saturation, p H value and coexisting anions(Cl, NO 3, SO2 4and HCO 3=CO_3^(2 -))on BrO_3reduction were evaluated. After 4.0-k Gy irradiation of air-equilibrated solution of 30.7 lg/L BrO_3, the residual BrO_3was 8.3 lg/L, which is below the maximum contaminant level of drinking water. The BrO_3reduction rate increased with the dose, in the order of N2[ air [ O_2[ N_2O atmosphere under similar conditions. The results also show that high p H favored the BrO_3removal. According to the experimental results, it can be concluded that the efficiency of decomposing BrO_3by reactive species followed the order of e aq[ H [ HO_2 [ O_2. Coexisting Cl, HCO 3=CO_3^(2 -)and SO2 4ions have little effect on BrO_3removal, whereas NO_3can inhibit its removal as a result of competition with BrO_3for e aq.

关键词： γ射线照射水溶液溴酸盐吸收剂量二氧化碳高pH值消毒副产物含气饱和度

基于卫星观测的青岛O_(3)污染特征及生成敏感性

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环境科学与技术 2024年第3期47卷 93-100页

作者：薛莲方渊刘岳峰孟赫郝勇代玮韩矗山东省青岛生态环境监测中心山东青岛266003 青岛市环境保护科学研究院山东青岛266071 青岛镭测创芯科技有限公司山东青岛266100

文章基于哨兵-5P卫星和激光雷达等观测结果,研究了2022年5月17-22日青岛市O_(3)污染过程的变化特征、对流层柱浓度分布及生成敏感性。结果表明,此次过程受区域增温、太阳辐射增强、逆温等不利污染扩散条件影响,还受区域污染物的传输和... 详细信息

文章基于哨兵-5P卫星和激光雷达等观测结果,研究了2022年5月17-22日青岛市O_(3)污染过程的变化特征、对流层柱浓度分布及生成敏感性。结果表明,此次过程受区域增温、太阳辐射增强、逆温等不利污染扩散条件影响,还受区域污染物的传输和高空沉降影响。对流层O_(3)及前体物HCHO、NO_(2)柱浓度具有明显的空间分布差异。O_(3)生成敏感性分析表明,青岛市区和郊区的大部分地区处在VOCs和NOx协同控制区,需要优化两者减排比例,协同控制;远郊区一般处在NOx控制区;石化区主要处在VOCs控制区。

关键词：卫星观测 O_(3)污染过程柱浓度生成敏感性

The sulfolane-based liquid electrolyte with LiClO_(4)additive for the wide-temperature operating high nickel ternary cathode

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Nano Research 2023年第3期16卷 3855-3863页

作者： Yixin Zhu Shuang He Jiayi Ding Guangyu Zhao fang lian School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China University of New South Wales PontypriddCF371DLUK

An adequate wide temperature electrolyte for high nickel ternary cathode is urgent to further develop high energy density ***,a comprehensive double-salt local high-concentration sulfolane-based electrolyte(DLi)is proposed with specific sheath structure to build stable interface on the LiNi_(0.8)Co_(0.1)Mn_(0.1O2)(NCM811)cathode at wide operating temperature between−60 and 55℃.Lithium perchlorate(LiClO_(4))in combination with high concentration lithium bis-(trifluoromethanesulfonyl)imide(LiTFSI)strengthens the internal interaction between anion and cation in the solvation structure,increasing Li+transference number of the electrolyte to ***,the structure and component characteristics of the passive interface layer on NCM811 are modulated,decreasing desolvation energy of Li+ions,benefiting Li+transport dynamics especially at low temperature,and also ensuring the interfacial stability at a wide operating temperature *** a result,the cathode with DLi exhibits excellent high-temperature storage performance and high capacity retention of 80.5%in 100 cycles at 55℃.Meanwhile,the Li||NCM811 cells can deliver high discharge capacity of 160.1,136.1,and 110.3 mAh·g^(−1)under current density of 0.1 C at−20,−40,and−60℃,maintaining 84.5%,71.8%,and 58.2%of the discharge capacity at 30℃,***,it enables NCM811 cathode to achieve a reversible capacity of 142.8 mAh·g^(−1)in 200 cycles at−20℃and 0.2 *** studies shed light on the molecular strategy of wide operational temperature electrolyte for high nickel ternary cathode.

关键词： liquid electrolyte high nickel ternary cathode wide temperature interface sheath structure

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中药联合腔内理疗治疗薄型子宫内膜经验撷菁

中华中医药杂志 2024年第2期39卷 784-787页

作者：王艺绚庞聪慧吴海萃于艺夏芳丹连方山东中医药大学济南250000 山东中医药大学附属医院中西医结合生殖与遗传中心济南250000

子宫内膜过薄可导致子宫内膜容受性下降,胚胎反复种植失败,目前已成为临床一大棘手问题。连方教授以“肾主生殖”为理论指导,认为薄型子宫内膜的病位在胞宫,肾虚精亏为基本病机,肝郁脾虚、胞脉血瘀为其主要兼证。连教授辨证论治时,注重... 详细信息

子宫内膜过薄可导致子宫内膜容受性下降,胚胎反复种植失败,目前已成为临床一大棘手问题。连方教授以“肾主生殖”为理论指导,认为薄型子宫内膜的病位在胞宫,肾虚精亏为基本病机,肝郁脾虚、胞脉血瘀为其主要兼证。连教授辨证论治时,注重分期论治,通过对肾阴、肾阳的调控,使机体达到阴平阳秘的稳定状态,同时根据患者临床症状随证加减。此外,在局部配合使用腔内理疗,改善宫腔环境,提高子宫内膜容受性,获得了较好的临床疗效。

关键词：薄型子宫内膜补肾调周腔内理疗连方名医经验

干旱胁迫对芋球茎淀粉和蔗糖代谢通路相关基因表达的影响

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西南农业学报 2024年第4期37卷 738-747页

作者：董伟清刘莉莉邱祖杨何芳练广西农业科学院蔬菜研究所南宁530007 荔浦市农业农村局广西荔浦546600

[目的]探究芋球茎响应干旱胁迫的分子机制,特别是干旱胁迫对淀粉和蔗糖代谢通路相关基因表达的影响,为耐旱品种选育提供依据。[方法]以荔浦芋1号为试验材料,对干旱胁迫下的芋球茎进行转录组测序,对获得的差异表达基因进行GO和KEGG富集分... 详细信息

[目的]探究芋球茎响应干旱胁迫的分子机制,特别是干旱胁迫对淀粉和蔗糖代谢通路相关基因表达的影响,为耐旱品种选育提供依据。[方法]以荔浦芋1号为试验材料,对干旱胁迫下的芋球茎进行转录组测序,对获得的差异表达基因进行GO和KEGG富集分析,进一步筛选与淀粉和蔗糖代谢通路相关的酶基因,并分析这些酶基因在干旱胁迫下的表达模式。[结果]芋球茎在干旱胁迫下筛选到差异表达基因1983个,其中上调表达基因373个,下调表达基因1610个。GO富集分析显示,差异表达基因在生物过程富集最多的是细胞过程和代谢过程,在细胞组分富集最多的是细胞解剖实体,在分子功能富集最多的催化活性和结合。KEGG富集分析显示,富集最多的通路分别是代谢通路、氮素代谢通路、抗坏血酸和醛酸代谢通路。对淀粉和蔗糖代谢通路的差异表达基因进行统计,共筛选到26个差异表达基因,涉及11种酶,其中上调表达基因5个,下调表达基因21个。在干旱胁迫下,淀粉合成酶、己糖激酶、果糖激酶、UTP-葡萄糖-1-磷酸盐尿苷酸转移酶、α-淀粉酶、内切葡聚糖酶、β-葡萄糖苷酶和β-呋喃果糖苷酶的基因下调表达;UDP-葡萄糖磷酸水解酶和海藻-6-磷酸合成/磷酸酶的基因上调表达;蔗糖合成酶和β-呋喃果糖苷酶的基因既有上调表达,也有下调表达。[结论]淀粉和蔗糖代谢通路相关基因的表达受到干旱胁迫的影响。调控淀粉代谢和海藻糖生物合成相关基因下调表达,而调控蔗糖代谢相关基因既有上调表达,也有下调表达。

关键词：芋干旱胁迫表达分析淀粉蔗糖

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