检索结果-南通市图书馆

Chinese Journal of Chemistry 1984年第1期2卷 37-45页

作者： GE Hai-lin zhu Ming-Hua SHAO ling-Xian JIN Xin-Rong Department of Chemistry,East China Institute of Chemical Technology,Shanghai Department of Chemistry East China Institute of Chemical Technology Shanghai

In this paper,the special effect of liquid crystal stationary phase is expressed in terms of⊿I,the difference of the retention index of probed solute between mesomorphic phase and isotropicphase.A series of compounds with different structures and polarities are selected as probed solutesfor the investigation of their retention behavior on liquid crystal PBOB and *** the differences of⊿I of various solutes,the rule of special selectivity on liquid crystal is explained.

关键词： Studies on the special selectivity of the liquid crystal stationary phase used in gas chromatography II.A new parameter for characterization of the liquid crystal stationary phase II

A comprehensive proteomic analysis of elaioplasts from citrus fruits reveals insights into elaioplast biogenesis and function

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Horticulture Research 2018年第1期5卷 879-889页

作者： Man zhu Jiajia lin Junli Ye Rui Wang Chao Yang Jinli Gong Yun Liu Chongling Deng Ping Liu Chuanwu Chen Yunjiang Cheng Xiuxin Deng Yunliu Zeng Key Laboratory of Horticultural Plant Biology(Ministry of Education) College of Horticulture and Forestry ScienceHuazhong Agricultural UniversityWuhan430070China Institute of Citrus Science Huazhong Agricultural UniversityWuhan430070China Shanghai Applied Protein Technology Co.Ltd Shanghai200233China Guangxi Citrus Research Institute Guangxi541004China

Elaioplasts of citrus peel are colorless plastids which accumulate significant amounts of ***,other functions of elaioplasts have not been fully characterized to ***,a LC–MS/MS shotgun technology was applied to identify the proteins from elaioplasts that were highly purified from young fruit peel of kumquat.A total of 655 putative plastid proteins were identified from elaioplasts according to sequence homology in silico and manual *** on functional classification via Mapman,~50%of the identified proteins fall into six categories,including protein metabolism,transport,and lipid *** note,elaioplasts contained ATP synthase and ADP,ATP carrier proteins at high abundance,indicating important roles for ATP generation and transport in elaioplast ***,a comparison of proteins between citrus chromoplast and elaioplast proteomes suggest a high level of functional ***,some distinctive protein profiles were also observed in both types of plastids notably for isoprene biosynthesis in elaioplasts,and carotenoid metabolism in *** conclusion,this comprehensive proteomic study provides new insights into the major metabolic pathways and unique characteristics of elaioplasts and chromoplasts in citrus fruit.

关键词： citrus comprehensive metabolism

Means and verification of broadcast technology applied to laser transmission on horizontal link

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Optoelectronics Letters 2019年第4期15卷 277-283页

作者： MU Yi-ning WANG Shuai LIU Guo-zhen LIU Chun-yang ZHAO Kai-qiang JIANG Hui-lin zhu Yan School of Science Changchun University of Science and Technology Changchun 130022 China Space Opto-electronics Institute Changchun University of Science and Technology Changchun 130022 China

At present, there has been great progress in the field of the point-to-point laser communication technology, in other words, the traditional laser communication technology has been advanced day by day. Furthermore, in order to search for an effective means of achieving localized laser broadcasting communication within a limited range, an effective method of horizontal link laser broadcasting communication is presented, and the corresponding verifiable broadcast communication system is designed. In addition, the laser broadcasting is systematically studied by one physical model built at the optimal distribution of optical power. First of all, the theoretical model of laser beam expansion and the theoretical model of parallel light curtain are made comparisons and analyzed from the angle of attenuation of optical power, and the optical power loss model of the parallel light curtain is established as a result. Secondly, combined with the theory of optical imaging transformation based on Gaussian beam, the field distribution of far field of parallel light curtain is simulated by one leading optical and illumination design software and the relation between the filed distribution of far field of light curtain and the distance of transmission is revealed. Finally, the superiority and feasibility of the parallel light curtain theory model are verified by field communication experiments in different information channels.

关键词： broadcast technology applied laser transmission point-to-point laser communication technology

In vitro degradation and biocompatibility of Mg-Nd-Zn-Zr alloy

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2012年第32期57卷 2163-2170页

作者： WANG YongPing HE YaoHua zhu ZhaoJin JIANG Yao ZHANG Jian NIU Jialin MAO lin YUAN GuangYin Department of Orthopaedics Sixth People's Hospital of Shanghai Jiao Tong UniversityShanghai 200233China National Engineering Research Center of Light Alloys Net Forming School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

In this study,in vitro degradation and biocompatibility of Mg-Nd-Zn-Zr(NZK) alloy were investigated to determine its suitability as a degradable medical *** corrosion properties were evaluated by static immersion test,electrochemical corrosion test,scanning electron microscopy(SEM),and energy dispersive spectroscopic(EDS) analysis,and in vitro biocompatibilities were assessed by hemolysis and cytotoxicity *** magnesium was used as *** results of static immersion test and electrochemical corrosion test in simulated body fluid(SBF) demonstrated that the addition of alloying elements could improve the corrosion *** hemolysis test found that the hemolysis rate of calcium phosphate coated NZK alloy was 4.8%,which was lower than the safe value of 5%.The cytotoxicity test indicated that NZK alloy extracts did not significantly reduce MC3T3-E1 cell *** test and cytotoxicity test display excellent hemocompatibility and cytocompatibility of NZK alloy in *** data indicate that NZK alloy has excellent biocompatibility and thus can be considered as a potential degradable medical biomaterial for orthopedic applications.

关键词：生物相容性体外降解锆合金纯镁电化学腐蚀试验医用生物材料扫描电子显微镜溶血试验

同方期刊数据库

Synthesis of Large-Sized van der Waals Layered MoO_(3) Single Crystals with Improved Dielectric Performance

在线全文

学校读者我要写书评

暂无评论

Precision Chemistry 2024年第8期2卷 406-413页

作者： Yaqi zhu Beiming Yu Xin Liu Jialin Zhang zhuofeng Shi Zhaoning Hu Saiyu Bu Chunhu Li Xiaodong Zhang Li lin College of Chemistry and Chemical Engineering Qingdao UniversityQingdao 266000P.R.China School of Materials Science and Engineering and Center for Nanochemistry Beijing Science and Engineering Center for NanocarbonsBeijing National Laboratory for Molecular ScienceCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871P.R.China School of Materials Science and Engineering Peking UniversityBeijing 100871P.R.China Laboratory of Marine Chemistry Theory and Technology Ministry of EducationCollege of Chemistry and Chemical EngineeringOcean University of ChinaQingdao 266100P.R.China

The applications of two-dimensional semiconductors strictly require the reliable integration of ultrathin high-κdielectric materials on the semiconductor surface to enable fine gate control and low power *** layered oxide materials,MoO_(3) can be potentially used as a high-κtwo-dimensional material with a larger bandgap and high electron *** this work,relying on the oxidization of molybdenum chlorides,we have synthesizedα-MoO_(3) single crystals,which can be easily exfoliated into flakes with thicknesses of a few nanometers and sizes of hundreds of micrometers and fine thermal *** on measurement results of conventional metal/insulator/metal devices and graphene based dual-gate devices,the as-received MoO_(3) nanosheets exhibit improved dielectric performance,including high dielectric constants and competitive breakdown field *** work demonstrates that MoO_(3) with improved crystalline quality is a promising candidate for dielectric materials with a large gate capacitance in future electronics based on two-dimensional materials.

关键词： high-κdielectric materials layered oxide materials single crystal high dielectric constants breakdown field strength

基于HCPP的室内VLC系统CSMA网络建模和性能分析

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

光电子．激光 2015年第8期26卷 1498-1505页

作者：南竹粉迟学芬 GUAN lin 石文孝吉林大学通信工程学院吉林长春130012 拉夫堡大学计算机科学系

研究了大型室内光物联网中实现光载波侦听多址接入(CSMA)的可行性。采用随机几何分析建模,将室内节点利用漫反射光完成载波侦听的过程抽象为独立集的选择问题,用硬核点过程(HCPP)建模通信节点的随机接入过程,得到载波侦听阈值和并发节... 详细信息

研究了大型室内光物联网中实现光载波侦听多址接入(CSMA)的可行性。采用随机几何分析建模,将室内节点利用漫反射光完成载波侦听的过程抽象为独立集的选择问题,用硬核点过程(HCPP)建模通信节点的随机接入过程,得到载波侦听阈值和并发节点密度的关系表达式。仿真分析了泊松点过程(PPP)节点密度、发射角和载波侦听阈值对并发节点密度的影响。结果表明,对于每个特定的发射角存在一个最佳的载波侦听阈值,可以使同时通信的节点数目最多。

关键词：可见光通信(VLC) 载波侦听多址接入(CSMA) 硬核点过程(HCPP) 载波侦听阈值

基于UPLC-QqQ-MS/MS测定人参属中药对甲亢大鼠类固醇激素含量的影响

在线全文

学校读者我要写书评

暂无评论

质谱学报 2024年第4期45卷 540-551,I0004页

作者：金墨竹刘琳琳窦德强辽宁中医药大学药学院辽宁大连116600

本研究利用超高效液相色谱-三重四极杆串联质谱(UPLC-QqQ-MS/MS)联用技术定量测定甲亢大鼠血清中肾上腺素和多种类固醇激素,探讨血清中类固醇激素含量与甲状腺功能亢进的相关性,以及不同药性人参属中药红参和人参叶对甲亢高代谢的改善... 详细信息

本研究利用超高效液相色谱-三重四极杆串联质谱(UPLC-QqQ-MS/MS)联用技术定量测定甲亢大鼠血清中肾上腺素和多种类固醇激素,探讨血清中类固醇激素含量与甲状腺功能亢进的相关性,以及不同药性人参属中药红参和人参叶对甲亢高代谢的改善作用。采用主成分分析(PCA)、Spearman检验进行肾上腺素和类固醇激素与甲状腺功能的相关性分析。结果表明,UPLC-QqQ-MS/MS能够快速检测待测物的含量和变化,灵敏度高、重现性好、准确率高且分析速度快。与空白组相比,甲亢大鼠血清中类固醇激素含量均有不同程度的降低,给予不同药性人参属中药后均出现升高。类固醇激素水平异常在一定程度上与甲状腺激素有关,皮质酮和肾上腺素可作为中药调节类固醇激素代谢的关键指标;睾酮可作为寒性中药调节类固醇激素的生物标志物;肾上腺素和雄烯二酮可作为温性中药调节类固醇激素的生物标志物。该方法能够系统、快速、准确、高效地完成大鼠血清中类固醇激素含量的测定,为类固醇激素的分析测定提供方法参考。

关键词：甲亢肾上腺素类固醇激素超高效液相色谱-三重四极杆串联质谱(UPLC-QqQ-MS/MS) 红参人参叶定量测定

Decimal Solvent-Based High-Entropy Electrolyte Enabling the Extended Survival Temperature of Lithium-Ion Batteries to−130°C

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

CCS Chemistry 2021年第4期3卷 1245-1255页

作者： Wei Zhang Huarong Xia Zhiqiang zhu Zhisheng Lv Shengkai Cao Jiaqi Wei Yifei Luo Yao Xiao lin Liu Xiaodong Chen Innovative Centre for Flexible Devices(iFLEX) School of Materials Science and EngineeringNanyang Technological UniversitySingapore 639798 Singapore-HUJ Alliance for Research and Enterprise Campus for Research Excellence and Technological EnterpriseSingapore 138602

Freezing and crystallization of commercial ethylene carbonate-based binary electrolytes,leading to irreversible damage to lithium-ion batteries(LIBs),remain a significant challenge for the survival of energy storage devices at extremely low temperatures(<−40°C).Herein,a decimal solvent-based high-entropy electrolyte is developed with an unprecedented low freezing point of−130°C to significantly extend the service temperature range of LIBs,far superior to−30°C of the commercial *** from conventional electrolytes,this molecularly disordered solvent mixture greatly suppresses the freezing crystallization of electrolytes,providing good protection for LIBs from possible mechanical damage at extremely low *** from this,our high-entropy electrolyte exhibits extraordinarily high ionic conductivity of 0.62 mS·cm−1 at−60°C,several orders of magnitude higher than the frozen commercial ***,LIBs utilizing decimal electrolytes can be charged and discharged even at an ultra-low temperature of−60°C,maintaining high capacity retention(∼80%at−40°C)as well as remarkable rate *** study provides design strategies of low-temperature electrolytes to extend the service temperature range of LIBs,creating a new avenue for improving the survival and operation of various energy storage systems under extreme environmental conditions.

关键词： low temperatures lithium-ion batteries electrolytes high entropy decimal solvent

HIF-1α induces VE-cadherin expression and modulates vasculogenic mimicry in esophageal carcinoma cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2014年第47期20卷 17894-17904页

作者： Na-Na Tang Hong zhu Hong-Jie Zhang Wei-Feng Zhang Hai-lin Jin Lu Wang Pin Wang Gui-Jun He Bo Hao Rui-Hua Shi Department of Gastroenterology The First Affiliated Hospital of Nanjing Medical University

AIM: To investigate whether hypoxia inducible factor (HIF)-1α modulates vasculogenic mimicry (VM) by upregulating VE-cadherin expression in esophageal squamous cell carcinoma (ESCC).

关键词： Esophageal squamous cell carcinoma Hypoxia-inducible factor-1α VE-cadherin RNA interference Vasculogenic mimicry

Mincle in the innate immune response of mice fungal keratitis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2018年第4期11卷 539-547页

作者： Guo-Rong Yu Jing lin Jie Zhang Cheng-Ye Che Xu-Dong Peng Cui Li Li-Ting Hu Guo-Qiang zhu Kun He Gui-Qiu Zhao Department of Ophthalmology the Affiliated Hospital of Qingdao University

AIM： To investigate how macrophage inducible C-type lectin（Mincle） influences inflammation in mice fungal keratitis induced by Aspergillus fumigatus（A. fumigatus）.METHODS： C57 BL/6 mice were infected with A. fumigatus after pretreated with Mincle agonist TDB or Mincle neutralizing antibody（MincleAb）, taking DMSO or IgG as control group respectively. The cornea lesions were monitored with slit-lamp microscope and evaluated by clinical score. Mincle expression was assessed using reverse transcriptionploymerase chain reaction（RT-PCR） and immunostaining. The expression of cytokines（IL-1β, TNF-α and IL-6） chemokines（CXCL-1 and MIP-2） was determined by RTPCR and ELISA. Neutrophil infiltration was observed by immunostaining. The levels of nitric oxide（NO） generated by corneas were tested by Griess reaction. RESULTS： Mincle mRNA and protein levels were higher in infected corneas than normal corneas of C57 BL/6 mice, saving clinical scores revealed differences. When pretreated with Mincle agonist TDB, the mRNA and protein levels of IL-1β, TNF-α and IL-6 in infected corneas were significantly increased compared with the control group（P〈0.01）. Results of the counterpart in corneas pretreated with Mincle neutralizing antibody was decreased consistently（P〈0.01）. Expression of CXCL1 and MIP-2 mRNA levels were upregulated in TDB group and down-regulated in Mincle Ab group（P〈0.01）, coincide with neutrophil aggregation degree in corneas showed by immunostaining. As for the concentration of NO, it was promoted in TDB group compared with DMSO control group, and decreased in Mincle Ab group compared with Ig G control ***： Mincle plays a dual role in mice fungal keratitis. It participates in the innate immune system by enhancing inflammation. What＇s more, Mincle can mediate cytotoxic effects by regulating the formation of NO.

关键词： fungal keratitis Mincle cytokines chemokines nitric oxide mice