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中国古生物学会第十二次全国会员代表大会暨第29届学术年会

作者：殷亚磊裴睿周长付 School of Earth and Space sciences Peking University Paleontological Institute Shenyang Normal University Department of Earth sciences the University of Hong Kong College of Earth science and Engineering Shandong University of Science and Technology

Sinovenator,with similarities to both troodontids and dromaeosaurids,has been found to be one of the most basal taxa of Troodontidae,and plays an important role in understanding the origin and the early evolution of this *** on the holotype(IVPP V12615),previous studies have described the morphology of the snout and the braincase of Sinovenator changii,however,the anatomical details of the middle of the posterior portions of the cranium are still ***,a new specimen of Sinovenator(PMOL-AD00102),from the lowest part of the Yixian Formation at the Lujiatun locality of western liaoning,China,is *** fossil consists of an almost complete skull,partial mandibles and six articulated cervical *** is attributed to *** based on proposed diagnostic features of this species,such as a "T"-shaped cross-section of the *** used high-resolution computed tomographic(CT) technology to uncover the cranial anatomy of PMOLAD00102 that is still concealed in the *** new anatomical information not only adds our knowledge of the osteology of Sinovenator,but also provides an opportunity to investigate the evolutionary trends in the palate and cranium of *** autapomorphies of *** include well-developed medial shelf on the jugal,lateral groove on the pterygoid flange of the ectopterygoid,slender bar in the parasphenoid recess,and lateral surface of the anterior cervical vertebrae bearing two pneumatic ***,this study concludes the braincase of Sinovenator is not as primitive as previously suggested,although it still shows an intermediate state between derived troodontids and non-troodontid paravians by having an initial stage of the subotic recess and the otosphenoidal ***,this new specimen firstly reveals some novel and significant anatomical information of troodontids regarding the quadrate-quadratojugal articulation,the epipterygoid,the stapes,the atlantal ribs,etc.

关键词： Early Cretaceous Jehol Biota Yixian Formation Sinovenator Troodontidae

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系列1D链状稀土配聚物[Ln（cinn）3]n的合成,结构及近红外发光

系列1D链状稀土配聚物[Ln（cinn）3]n的合成,结构及近红外发光

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中国化学会第27届学术年会

作者：牛淑云李艳莹李野迟玉贤辽宁师范大学

＜正＞采用水热方法合成了4种具有近红外发光的Ln3+配位聚合物,[Ln（cinn）3]n[Ln=Nd（1）;Ho（2）;Er（3）;Yb（4）].X-射线单晶衍射结果表明,这4种化合物均为1D配位聚合物,化合物（2）,（3）,（4）是同构

关键词： Ln3+配位聚合物晶体结构近红外发光

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基于金属复合物的干扰素传递系统的研究(英文)

基于金属复合物的干扰素传递系统的研究(英文)

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生物颗粒与粉体制备、应用技术研讨会

作者：蒋艳博沈阳药科大学

Protein spherulite,a new form of protein aggregation,was prepared for sustained-release of recombinant human interferonα-2b(rhIFN).rhIFN spherulites exhibit good sustained release potential in *** inhibition assay was conducted and shown that the spherulitic rhIFN well kept their structural and functional *** vivo studies showed that rhIFN spherulites provided a significantly prolonged PK profile as compared with the soluble rhIFN formulation.

关键词： Interferon Spherulites Sustained release In vitro release Pharmacokinetics

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多维度量空间中发现相互kNN(英文)

多维度量空间中发现相互kNN(英文)

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NDBC2010第27届中国数据库学术会议

作者：刘俊岭孙焕良东北大学信息科学与工程学院沈阳建筑大学信息与控制工程学院

发现两类对象的相互k最近邻居可为工作匹配、大学选择等应用提供决策。现有的方法主要处理单度量空间(如L norm),这些方法有可能导致不公平的匹配。形式化多度量空间的相互最近邻问题,提出基于空间索引的多度量空间下的相互k最近邻算法... 详细信息

发现两类对象的相互k最近邻居可为工作匹配、大学选择等应用提供决策。现有的方法主要处理单度量空间(如L norm),这些方法有可能导致不公平的匹配。形式化多度量空间的相互最近邻问题,提出基于空间索引的多度量空间下的相互k最近邻算法。利用人工数据集,测试了大量的参数设置下的算法性能,结果表明提出的算法优于可选的直接算法。

关键词：相互k最近邻多度量空间 R树 Minkowski区域

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基于1,2-丙二胺配体构筑Cu~Ⅱ-La~Ⅲ异金属修饰型磷钨酸化合物的合成与表征（英文）

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化学研究 2017年第5期28卷 568-574页

作者：王禹赵海燕董大朋于乃森刘本康林翔王利大连民族大学物理与材料工程学院辽宁大连116600

在水热条件下,成功合成了一例新的Cu-La异金属修饰的有机-无机杂化型多金属磷钨酸簇合物[Cu(dap)_2]_(3.5)[Cu(dap)_2(H_2O)]_2[La(α-PW_(11)O_(39))_2]·6H_2O(1)(dap=1,2-丙二胺),并通过元素分析、红外光谱、热分析和X射线单晶衍射对化合物进行了表征和研究.结构分析表明在化合物1中,单稀土取代的二聚[La(α-PW_(11)O_(39))_2]^(11-)单元之间通过[Cu(dap)_2]^(2+)阳离子连接,形成一维Z字型链状结构.值得注意的是,化合物1是首例一维含1,2-丙二胺有机配体Cu-La异金属修饰的磷钨酸簇合物.

关键词：磷钨酸异金属的有机-无机杂化水热合成技术

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Supervised Deep Second-Order Covariance Hashing for Image Retrieval

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国际计算机前沿大会会议论文集 2020年第1期 476-487页

作者： Qian Wang YueWu Jianxin Zhang Hengbo Zhang Chao Che Lin Shan Key Lab of Advanced Design and Intelligent Computing(Ministry of Education) Dalian UniversityDalianChina School of Computer science and Engineering Dalian Minzu UniversityDalianChina School of Economic and Management Dalian University of Science and TechnologyDalianChina

Recently,deep hashing methods play a pivotal role in image retrieval tasks by combining advanced convolutional neural networks(CNNs)with efficient ***,second-order representations of deep convolutional activations have been established to effectively improve network performance in various computer vision *** this work,to obtain more compact hash codes,we propose a supervised deep second-order covariance hashing(SDSoCH)method by combining deep hashing with second-order statistic *** utilizes a powerful covariance pooling to model the second-order statistics of convolutional features,which is naturally integrated into the existing point-wise hashing network in an end-to-end *** embedded covariance pooling operation well captures the interaction of convolutional features and produces global feature representations with more discriminant capability,leading to the more informative hash *** experiments conducted on two benchmarks demonstrate that the proposed SDSoCH outperforms its first-order counterparts and achieves superior retrieval performance.

关键词： Deep hashing Point-wise manner Covariance pooling Image retrieval

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The influence of field-free orientation on the predissociation dynamics of the NaI molecule

The influence of field-free orientation on the predissociati...

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第五届全国计算原子与分子物理学术会议

作者： Yong-Chang Han School of Physics and Optoelectronic Technology Dalian University of Technology

The orientation and predissociation dynamics of the NaI molecule are studied by using a time-dependent wavepacket method.[1]The Nal molecule is first pre-oriented by a single-cycle pulse（SCP）in terahertz（THz）region and then predissociated by a femtosecond pump pulse.[2]The influence of the molecular field-free orientation on the predissociation dynamics is studied in *** calculate the radial and angular distributions,the molecular orientation degrees,and the time-dependent populations for both the ground and excited electronic *** is found that the pre-orientation affects the angular distributions significantly,as shown in Fig.1,and that it has weak influence on the radial *** varying the delay time between the THz SCP and the pump pulse,the angular distribution of the fragments from the predissociation can be manipulated.

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Longan Aril Reverses H2O2 Cytotoxicity in PC12 Cells via RAS/MEK/ERK Signaling Pathway

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Medicinal Plant 2021年第2期12卷 54-59页

作者： Tianrong LEI Yang CAO Chang LI Jianghua ZHANG Honghe XIAO Cheng SONG Hongyan LI Pharmaceutical College Liaoning University of Traditional Chinese Medicine Dalian 116600 China Dalian Huaxin Physicochemical Testing Centre Ltd. Dalian 116600 China College of Light Industry and Chemical Engineering Dalian Polytechnic University Dalian 116034 China Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications Liaoning University of Traditional Chinese Medicine Shenyang 110032 China

[Objectives]To explore the neuroprotective effects and mechanism of Longan Aril(LA)effective parts on PC12 cells injured by H2O2.[Methods]The neuroprotective effects of LA were evaluated by the cell viability,SOD and MDA content,apoptosis assay and relative protein expression of Aβand *** neuroprotective mechanism of LA was studied by using metabolomics and network pharmacology,and the expressions of RAS/MEK/ERK signaling pathway-related proteins were detected by western blotting.[Results]LA could improve the cell survival rate and SOD content,and reduce apoptosis and expression of Aβand *** of RAS/MEK/ERK signaling pathway is a possible mechanism of LA neuroprotective effects.[Conclusions]LA has a neuroprotective effects in vitro and be likely to inhibit the process of AD by inhibition of RAS/MEK/ERK signalling pathway.

关键词： Longan Aril(LA) RAS/MEK/ERK pathway Alzheimer's disease(AD) Neuroprotective effects

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Seasonal Variation of Environmental Variables and Phytoplankton Community Structure and Their Relationship in liaodong Bay of Bohai Sea, China

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中国海洋大学学报（英文版） 2018年第4期 864-878页

作者： YANGGuojun WUZhongxin SONGLun andLUXiaoqian College of Fisheries and Life science，Dalian Ocean University Center for Marine Ranching Engineering science Research of liaoning Province，Dalian Ocean University College of Marine science and Environment，Dalian Ocean University liaoning Ocean and Fisheries science Research Institute

In this paper, systematic studies on the changes in concentrations of the environmental factors and the net-phytoplankton community, and the relationship between them in the Liaodong Bay, Bohai Sea during 2013 are presented. The PCA results showed that higher levels of nutrients and dissolved heavy metals in the river-estuary-bay system were closely related to the river runoff. Since the influences of industrial and anthropogenic activities, the Liaodong Bay coastal areas are facing a huge environmental challenge of nutrients and heavy metal pollution. Net-phytoplankton community structure showed obvious seasonal succession, among which the dominant and(or) key species were the main factors affecting community structure change and stability. Under certain environmental conditions, the dominant species and(or) key species dominated the phytoplankton community structure succession. The Bio-ENV results suggested that the seawater temperature, nutrient, Cu, Pb, Zn, and Cd in Liaodong Bay are important environmental variables that affect the phytoplankton community structure. Anthropogenic activities have significantly contributed to the changes in concentrations of environmental factors and the net-phytoplankton community structure and stability, and the relationship between them.

关键词： LIAODONG BAY environmental VARIABLES EUTROPHICATION trace metals PHYTOPLANKTON community ecological stability

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新型Bola型表面活性剂DAOPh的合成及性质研究

新型Bola型表面活性剂DAOPh的合成及性质研究

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中国化学会第30届学术年会

作者：袁悦张勤胡贝贝李盼盼王洁莹沈阳药科大学药学院

以L-苯丙氨酸为亲水部分和1,8-辛二胺为疏水部分,通过酯化生成酰胺和HCl脱去BOC保护基两步反应,合成一种新型Bola型表面活性剂N,N’-二苯丙氨酸酰基-1,8-辛二胺（DAOPh）,采用IR、质谱和1H-NMR对其结构进行了表征。应用酸碱滴定法测得其... 详细信息

以L-苯丙氨酸为亲水部分和1,8-辛二胺为疏水部分,通过酯化生成酰胺和HCl脱去BOC保护基两步反应,合成一种新型Bola型表面活性剂N,N’-二苯丙氨酸酰基-1,8-辛二胺（DAOPh）,采用IR、质谱和1H-NMR对其结构进行了表征。应用酸碱滴定法测得其p Ka,电导率法,表面张力法测定了DAOPh水溶液的临界胶束浓度（CMC）,进而预测其在水溶液中的聚集行为,以氨基酸为极性头的表面活性剂具有潜在的p H响应性,使表面活性剂的极性或结构发生变化,这种p H响应特性使该表面活性剂在应用于药物载体时,对于提高药物释放有很大帮助,以此来探讨其作为药物载体的潜在优势。

关键词： Bola型表面活性剂 N,N"-二苯丙氨酸酰基-1,8-辛二胺(DAOPh) 临界胶束浓度

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