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Synthesis, Crystal Structure and Theoretical Calculation of a Novel 2D Network of Manganese(Ⅱ) Complex

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Chinese Journal of Structural Chemistry 2019年第12期38卷 2113-2120页

作者： li Xiu-Ying YIN Tian-Qi WANG Chun-Yue ZHANG Jing WANG Yue GAO lin HU Bo liU Bo JIANG Wei CHE guang-Bo Key Laboratory of Preparation and Applications of Environmental Friendly Materials(Jilin Normal University) Ministry of EducationChangchun 130103China College of Chemistry Jilin Normal UniversitySiping 136000China College of Environmental Engineering Jilin Normal UniversitySiping 136000China

A novel complex, [Mn（2-NCP）（H2BTC）（H2O）]n（1, 1,3,5-H3BTC = 1,3,5-benzenetricarboxylic acid, 2-HNCP = 2-（2-carboxyphenyl）-1 H-imidazo（4,5-f）-（1,10）phenanthroline）, was hydrothermally synthesized and structurally characterized by elemental analysis, IR, XRD and single-crystal X-ray diffraction. Structural analyses reveal that complex 1 exhibits a（6, 6）-connected topology network with a Schl?fli symbol of（63）. The adjacent 2 D layers are further stacked via strong hydrogen-bonding interactions, giving a 3 D supramolecular framework. In addition, the structure of complex 1 was calculated by the B3LYP/LANL2 DZ method by Gaussian program. The results from natural bond orbital（NBO） analysis shows obvious covalent interaction between the coordinated atoms and Mn（Ⅱ） ion.

关键词： manganese(Ⅱ)complex hydrothermal synthesis crystal structure theoretical calculation

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远程红外探测系统瞄准线高精度稳定技术

红外与激光工程 2014年第11期43卷 3646-3650页

作者：胥青青刘伟纪明杨光尹明东李红光西安应用光学研究所陕西西安710065 总参陆航部装备发展办公室北京100012

瞄准线稳定精度是远程红外探测系统的关键指标之一,主要由伺服环路带宽和隔离度决定。介绍了远程红外探测系统的组成,分析了基于FSM的二级稳定技术的原理,建立了粗级稳定平台机电模型、精级稳定平台机电模型和光学传递函数模型,最终搭... 详细信息

瞄准线稳定精度是远程红外探测系统的关键指标之一,主要由伺服环路带宽和隔离度决定。介绍了远程红外探测系统的组成,分析了基于FSM的二级稳定技术的原理,建立了粗级稳定平台机电模型、精级稳定平台机电模型和光学传递函数模型,最终搭建了二级稳定伺服控制系统数学模型,通过分析带宽和隔离度传递函数,提出了扰动全补偿的边界条件,同时分析了影响稳定带宽和隔离度的主要因素,对比了二级稳定和传统稳定的稳定效果。仿真结果显示,系统速率稳定回路带宽提升至200 Hz,1 Hz隔离度可达-66 d B,实际测试稳定精度达到12μrad,满足远程红外探测系统对于稳定精度的要求。

关键词：红外探测系统稳瞄二级稳定快速反射镜

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磁性多壁碳纳米管对磺胺类药物的吸附行为

新型炭材料 2015年第6期30卷 572-578页

作者：曹慧陈小珍朱岩李祖光浙江省质量检测科学研究院浙江杭州310018 浙江大学化学系浙江杭州310028 浙江工业大学化学工程与材料学院浙江杭州310014

制备磁性多壁碳纳米管,将MWCNTs羧酸化后再进行加磁,并用于磺胺类药物的吸附行为研究,考察吸附剂用量、溶液pH值、吸附时间和溶液浓度对吸附行为的影响。结果表明,50 mg磁性MWCNTs粉末在50 m L pH值为6,浓度为2 mg/L的磺胺混合标准溶液... 详细信息

制备磁性多壁碳纳米管,将MWCNTs羧酸化后再进行加磁,并用于磺胺类药物的吸附行为研究,考察吸附剂用量、溶液pH值、吸附时间和溶液浓度对吸附行为的影响。结果表明,50 mg磁性MWCNTs粉末在50 m L pH值为6,浓度为2 mg/L的磺胺混合标准溶液中吸附30 min,各种磺胺药物的去除率达到85%以上。磁性MWCNTs吸附磺胺类药物的过程符合准二级动力学模型(R2>0.99),平衡吸附容量的试验值与理论计算值更为接近。磁性多壁碳纳米管对磺胺类药物的吸附过程符合Langmuir模型,为可逆吸附。对磁性MWCNTs上吸附的磺胺类药物进行脱附试验,发现5%的氨水甲醇的洗脱效果最好。磁性MWCNTs对磺胺类药物进行10次脱附再吸附反复试验,磺胺类药物的回收率在80%以上,表明磁性MWCNTs对磺胺类药物具有很好的吸附性能,且可以反复使用,磁性MWCNTs具有一定的开发前景和应用价值。

关键词：磁性多壁碳纳米管磺胺吸附脱附

LSCHL4 from Japonica Cultivar, Which Is Allelic to NAL 1, Increases Yield of Indica Super Rice 93-11

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Molecular Plant 2014年第8期7卷 1350-1364页

作者： guang-Heng Zhang Shu-Yu li li Wang Wei-Jun Ye Da-li Zeng Yu-Chun Rao You-lin Peng Jiang Hu Yao-Long Yang Jie Xu De-Yong Ren Zhen-Yu Gao li Zhu Guo-Jun Dong Xing-ming Hu Mei-Xian Yan Long-Biao Guo Chuan-You li Qian Qian State Key Laboratory of Rice Biology China National Rice Research Institute 359 Tiyuchang Road Hangzhou 310006 Zhejiang China State Key Laboratory of Plant Genomics National Center for Plant Gene Research Institute of Genetics and Developmental BiologyChinese Academy of Sciences Beijing 100101 China

The basic premise of high yield in rice is to improve leaf photosynthetic efficiency and coordinate the sourcesink relationship in rice plants. Quantitative trait loci （QTLs） related to morphological traits and chlorophyll content of rice leaves were detected at the stages of heading to maturity, and a major QTL （qLSCHL4） related to flag leaf shape and chlorophyll content was detected at both stages in recombinant inbred lines constructed using the indica rice cultivar 93-11 and the japonica rice cultivar Nipponbare. Map-based cloning and expression analysis showed that LSCHL4 is allelic to NAL1, a gene previously reported in narrow leaf mutant of rice. Overexpression lines transformed with vector carrying LSCHL4 from Nipponbare and a near-isogenic line of 93-11 （NIL-9311） had significantly increased leaf chlorophyll content, enlarged flag leaf size, and improved panicle type. The average yield of NIL-9311 was 18.70% higher than that of 93-11. These results indicate that LSCHL4 had a pleiotropic function. Exploring and pyramiding more high-yield alleles resem- bling LSCHL4 for super rice breeding provides an effective way to achieve new breakthroughs in raising rice yield and generate new ideas for solving the problem of global food safety.

关键词： rice breeding QTL qLSCHL4 panicle type pleiotropism yield potential.

In vivo anti-tumor effect of hybrid vaccine of dendritic cells and esophageal carcinoma cells on esophageal carcinoma cell line 109 in mice with severe combined immune deficiency

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World Journal of Gastroenterology 2008年第8期14卷 1167-1174页

作者： guang-Hua Guo Su-Zuan Chen Jing Yu Juan Zhang li-li Luo li-Hua Xie Zhong-Jing Su Hong-Mei Dong Hong Xu li-Biao Wu Department of Gastroenterology The First Affiliatecl Hospital of Shantou University Medical College Shantou 515041Guangdong Province China

AIM： To develop a fusion vaccine of esophageal carcinoma cells and dendritic cells （DC） and observe its protective and therapeutic effect against esophageal carcinoma cell line 109 （EC109）. METHODS： The fusion vaccine was produced by fusing traditional polyethyleneglycol （PEG）, inducing cytokine, sorting CD34＋ magnetic microbead marker and magnetic cell system （MACS）. The liver, spleen and lung were pathologically tested after injection of the fusion vaccine. To study the therapeutic and protective effect of the fusion vaccine against tumor EC109, mice were divided immune group and therapeutic group. The immune group was divided into P, E, D and ED subgroups, immunized by phosphate buffered solution （PBS）, inactivated EC109, DC and the fusion vaccine respectively, and attacked by EC109 cells. The tumor size, weight, latent period and mouse survival period were recorded and statistically analyzed. The therapeutic group was divided into four subgroups： P, inactivated EC109, D and ED subgroups, which were attacked by EC109 and then treated with PBS, inactivated EC109, DC, and EC109-DC respectively. Pathology and flow cytometry were also used to study the therapeutic effect of the fusion vaccine against EC109 cells.RESULTS： Flow cytometry showed that the expression of folate receptor （FR）, EC109 （C）, Des （D） in human nasopharyngeal carcinoma cell line （HNE1）（B） was 78.21%, 89.50%, and 0.18%, respectively. The fusion cells （C） were highly expressed. No tumor was found in the spleen, lung and liver after injection of the fusion vaccine. Human IgG was tested in peripheral blood lymphocytes （PBL）. In the immune group, the latent period was longer in EC109-DC subgroup than in other subgroups, while the tumor size and weight were also smaller than those in ED subgroup. In the therapeutic group, the tumor size and weight were smaller in ED subgroup than in P, inactivated EC109 and DC subgroups. CONCLUSION： Fusion cells are highly expressed not only in FR but also in CD8

关键词： Dendritic cells Esophageal carcinoma cells Cell fusion Immune protection Immunotherapy

Muricatenol, a linear Acetogenin from Annona muricata (Annonaceae)

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Chinese Chemical Letters 2000年第3期11卷 239-242页

作者： De Yu li Jing guang YU Xiu Zhen LUO Lan SUN Shi lin YANG (Institute of Medicinal Plant Development. Chinese Academy of Medical Sciences and Peking Union Medical College. Beijing 100094) Chinese Acad Med Sci Inst Med Plant Dev Beijing 100094 Peoples R China Peking Union Med Coll Beijing 100094 Peoples R China

Muricatenol 1, a new acetogenin, has been isolated from the seeds of Annona muricata L.. Compound 1 is a C-37 acetogenin without any THF rings. with four hydroxyls and one double bond in the long aliphatic chain. The hydroxyls of 1 are located at C-4, C-10, C-18 and C-19. respectively. The vicinal diet at C-18/C-19 is threo-configuration, and the double bond at C-14/C-15 is cis-configuration.

关键词： Annona muricata Annonaceae acetogenins muricatenol

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盐浴复合热处理技术氮化盐研究与测定

光谱学与光谱分析 2018年第11期38卷 3347-3353页

作者：武新李光林温志渝西南大学工程技术学院重庆400715 重庆电子工程职业学院重庆401331 重庆大学微系统研究中心重庆400044

盐浴复合热处理技术是一种新型表面处理技术,能增强工件的耐磨性、耐腐蚀性和耐疲劳性,在金属表面处理中得到广泛的应用。氮化盐中氰酸根、氰化物和铁离子的含量对该热处理技术的质量控制十分重要,因此需要准确测定该三成分的含量以保... 详细信息

盐浴复合热处理技术是一种新型表面处理技术,能增强工件的耐磨性、耐腐蚀性和耐疲劳性,在金属表面处理中得到广泛的应用。氮化盐中氰酸根、氰化物和铁离子的含量对该热处理技术的质量控制十分重要,因此需要准确测定该三成分的含量以保证金属表面处理的质量。针对目前业内所采用的化学滴定法难以满足自动化分析的技术要求,基于分光光度法,采用510,620和697nm三个不同波长的单色LED光源、耦合光纤、光电二极管搭建了一台半自动氮化盐三参数分析实验装置,实现氰酸根、氰化物和铁离子的快速准确测试。该半自动实验装置除了光路系统外,还有搅拌控制系统、恒温控制系统、数据采集电路系统。氰酸盐检测采用间接检测方法,先通过化学方法把氰酸根转变为铵根,再根据标准GB 7481—1987水质铵的测定-水杨酸分光光度法,通过对铵离子的测定(检测波长697nm)间接测量氰酸根。氰化物检测依据标准HJ484—2009水质氰化物的测定-异烟酸-巴比妥酸分光光度法(检测波长620nm)。铁离子含量的检测依据标准HJ345—2007水质铁的测定-邻菲啰啉分光光度法,光谱检测特征波长为510nm。对LED光源光强稳定性进行了测试,LED光源一开始工作光强即达到稳定值;测试了耦合光纤对LED光源的光谱影响,单色光源通过耦合光纤和单光纤的光谱没有发生变化,只是通过耦合光纤后光强值有所降低;测试了搅拌对LED光源光强稳定性影响,搅拌系统对光学系统没有影响。利用实验装置测量出不同浓度氰酸根标准样品氰酸钾、氰根标准样品氰化钾、铁离子标准样品硫酸亚铁的吸光度,基于朗伯比尔定律,建立氰酸根、氰化物和铁离子标样的拟合曲线,其线性相关度R2分别为0.990 7,0.999 6和0.998 1,线性度高;氰酸根、氰根和铁离子的预测样品均值最大相对误差和最大相对标准偏差RSD分别为4.53%和1.04%,2.29%和0.79%,4.2%和0.7%,说明三样品测试结果准确性高、重复性好;氰酸根、氰根和铁离子的最低检出限LOD分别为0.017,0.009和0.005mg·L^(-1)。比较了用设计的氮化盐三成分半自动检测装置与传统化学滴定法测得的氮化盐样品中的氰酸根、氰化物和铁离子含量,设计的检测系统测试结果优于传统的化学滴定法,其中测试的氮化盐样品的氰酸根、氰化物和铁离子均值相对误差和相对标准方差RSD分别为4.17%和0.69%,1%和0.58%,4%和0.29%。各项测试结果均达到设计要求,为盐浴复合热处理技术氮化盐三成分半自动分析仪提供了理论和技术支持。论文搭建的氮化盐三成分半自动检测装置的光路系统采用单色LED光源、多进一出耦合光纤对光源分光,实现多参数的快速准确检测,整套光学检测系统无任何活动部件,大大降低了光学检测系统带来的系统误差,保证了测试的准确度和重复性。

关键词：光谱分析光学系统氮化盐金属表面处理

Epidemiological characteristics of tuberculosis incidence and its macro-influence factors in Chinese mainland during 2014-2021

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Infectious Diseases of Poverty 2024年第3期13卷 43-57页

作者： Le-le Deng Fei Zhao Zhuo-wei li Wei-wei Zhang guang-xue He Xiang Ren National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijing 102206China Department of Pharmacy Beijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical ScienceBeijing Key Laboratory of Drug Clinical Risk and Personalized Medication EvaluationBeijing 100730China Miyun District Center for Disease Control and Prevention Beijing 101500China School Of Public Health Binzhon Medical UniversityYantai 264000China Division of Infectious Disease Key Laboratory of Surveillance and Early-Warning On Infectious DiseaseChinese Center for Disease Control and PreventionBeijing 102206China

Background Tuberculosis(TB)remains a pressing public health issue,posing a significant threat to individuals'well-being and *** study delves into the TB incidence in Chinese mainland during 2014-2021,aiming to gain deeper insights into their epidemiological characteristics and explore macro-level factors to enhance control and *** TB incidence data in Chinese mainland from 2014 to 2021 were sourced from the National Notifiable Disease Reporting System(NNDRS).A two-stage distributed lag nonlinear model(DLNM)was constructed to evaluate the lag and non-linearity of daily average temperature(℃,Atemp),average relative humidity(%,ARH),average wind speed(m/s,AWS),sunshine duration(h,SD)and precipitation(mm,PRE)on the TB incidence.A spatial panel data model was used to assess the impact of demographic,medical and health resource,and economic factors on TB *** A total of 6,587,439 TB cases were reported in Chinese mainland during 2014-2021,with an average annual incidence rate of 59.17/100,*** TB incidence decreased from 67.05/100,000 in 2014 to 46.40/100,000 in 2021,notably declining from 2018 to 2021(APC=-8.87%,95%CI:-11.97,-6.85%).TB incidence rates were higher among males,farmers,and individuals aged 65 years and *** analysis revealed a significant cluster in Xinjiang,Qinghai,and Xizang from March 2017 to June 2019(RR=3.94,P71.73%),low sunshine duration(<6.18 h)increased the risk of TB incidence,while extreme low wind speed(<2.79 m/s)decreased the *** spatial Durbin model showed positive associations between TB incidence rates and sex ratio(β=1.98),number of beds in medical and health institutions per 10

关键词： Tuberculosis Surveillance Epidemiological characteristics Incidence Influence factor Distributed lag nonlinear model(DLNM) Spatial panel model China

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基于P2P的通告代理集群技术

上海交通大学学报 2007年第1期41卷 71-75页

作者：贾兆庆姜义薛广涛尤晋元李明禄上海交通大学计算机科学与工程系

提出基于P2P网络技术构建Web服务通告代理集群,同时,提出对通告代理集群进行基于主题的逻辑多层管理,在主题层内使用层内通告消息广播算法传播通告消息.仿真结果表明,通告代理集群对随机节点故障是强壮的,基于主题的分层技术有效减少了... 详细信息

提出基于P2P网络技术构建Web服务通告代理集群,同时,提出对通告代理集群进行基于主题的逻辑多层管理,在主题层内使用层内通告消息广播算法传播通告消息.仿真结果表明,通告代理集群对随机节点故障是强壮的,基于主题的分层技术有效减少了每个通告代理节点的负载,层内通告消息广播算法具有高可靠性和好的可扩展能力.

关键词： Web服务 Web服务通告通告代理集群 P2P网络