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网上虚拟实验室的设计与实现

计算机与数字工程 2006年第10期34卷 138-141页

作者：何水艳冯刚项慨华中师范大学计算机科学系武汉430079

提出了基于Java 3D技术网上虚拟实验室的设计模型。Java 3D作为Java在图形方面的扩展,它是基于Open-GL等底层的API,并结合了Java语言的网络功能,能很好的解决网络跨平台环境的三维可视化问题,并具有很强的交互功能。另一方面关于场景的... 详细信息

提出了基于Java 3D技术网上虚拟实验室的设计模型。Java 3D作为Java在图形方面的扩展,它是基于Open-GL等底层的API,并结合了Java语言的网络功能,能很好的解决网络跨平台环境的三维可视化问题,并具有很强的交互功能。另一方面关于场景的建模我们采取的是分层建模。通过分层建模有效克服了模型数据量大而产生的客户端系统负担重等问题。

关键词：虚拟实验室 Java 3D 分层建模

基于TDL+CLM的教学设计与教师角色研究——以“变压器原、副线圈电压与匝数的关系”为例

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教育研究前沿（中英文版） 2023年第1期13卷 34-43页

作者：周苏园吴伶锡贺水燕湖南科技大学湖南省湘潭市4111000

随着教学改革的不断深入,教学设计是高质量教学的关键,教师在教学过程中所担任的角色也朝着多样化的方向发展。通过探讨任务驱动与协作学习的方式,开展了实验教学设计,研究表明,基于TDL+CLM的混合教学模式要求教师具有多种不同的角色,... 详细信息

随着教学改革的不断深入,教学设计是高质量教学的关键,教师在教学过程中所担任的角色也朝着多样化的方向发展。通过探讨任务驱动与协作学习的方式,开展了实验教学设计,研究表明,基于TDL+CLM的混合教学模式要求教师具有多种不同的角色,分别是:①实验任务的设计者;②实验情景的创设者;③实验活动的参与者;④实验过程的引导者;⑤实验行为的监控者;⑥实验成员关系的协调者;⑦实验过程的评估者。

关键词： TDL 教师角色 CLM 变压器教学设计

遵循认知发展规律的各学段物理知识进阶教学策略刍议——以小学科学和初中物理中的光学知识为例

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物理通报 2023年第6期 52-56页

作者：吴寿芳吴伶锡贺水燕湖南科技大学物理与电子科学学院湖南湘潭411201

从教育部2022年公布的课程标准看出,小学科学课程中所涉及的部分知识与初中物理知识密切相关.教师全面了解这两门课程知识之间的关系,有利于有效地组织教学,帮助学生更高效地学好物理,实现物理核心素养目标.遵循儿童认知发展的规律,以... 详细信息

从教育部2022年公布的课程标准看出,小学科学课程中所涉及的部分知识与初中物理知识密切相关.教师全面了解这两门课程知识之间的关系,有利于有效地组织教学,帮助学生更高效地学好物理,实现物理核心素养目标.遵循儿童认知发展的规律,以小学科学和初中物理中的光学知识为例,利用思维导图对两种教材进行对比分析,探讨了中小学生的知识学习进阶问题并提出教学建议,以就教于方家.

关键词：认知发展知识进阶小学科学初中物理教学建议

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对用贝塞尔公式评定不确定度的思考

大学物理实验 2006年第1期19卷 63-67页

作者：贺水燕文盛乐蔡静吴伶锡湖南科技大学湘潭411201 湖南师范大学长沙410081

用实例证明了在测量次数小于10时,要得到与无限次测量相同的置信概率,则必须在前乘以因子t;对于少数物理实验书中没有提到测量次数与t因子的关系问题,忽视了贝塞尔公式成立的条件,这是错误的。

关键词：不确定度标准偏差测量次数置信因子

Edge detection algorithm based on ICA-domain shrinkage in noisy images

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Science in China(Series F) 2008年第9期51卷 1349-1359页

作者： HAN XianHua DAI shuiyan LI Jian XIA GuoRong Electronics and Information Engineering School Central South University of Forestry and TechnologyChangsha 410004 China

We propose a robust edge detection method based on ICA-domain shrinkage （in- dependent component analysis）. It is known that most basis functions extracted from natural images by ICA are sparse and similar to localized and oriented receptive fields, and in the proposed edge detection method, a target image is first transformed by ICA basis functions and then the edges are detected or recon- structed with sparse components. Furthermore, by applying a shrinkage algorithm to filter out the components of noise in ICA-domain, we can readily obtain the sparse components of the original image, resulting in a kind of robust edge detec- tion even for a noisy image with a very low SN ratio. The efficiency of the proposed method is demonstrated by experiments with some natural images.

关键词： edge detection independent component analysis shrinkage function Poisson noise

Electrically driven single microwire-based single-mode microlaser

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Light(Science & Applications) 2022年第8期11卷 1799-1810页

作者： Xiangbo Zhou Mingming Jiang Kai Xu Maosheng Liu Shulin Sha shuiyan Cao Caixia Kan Da Ning Shi College of Physics MIIT Key Laboratory of Aerospace Information Materials and PhysicsKey Laboratory for Intelligent Nano Materials and DevicesNanjing University of Aeronautics and AstronauticsNo.29 Jiangjun RoadNanjing211106China

Engineering the lasing-mode oscillations effectively within a laser cavity is a relatively updated attentive study and perplexing issue in the field of laser physics and applications. herein, we report a realization of electrically driven single-mode microlaser, which is composed of gallium incorporated zinc oxide microwire (ZnO:Ga MW) with platinum nanoparticles (PtNPs, d ~ 130 nm) covering, a magnesium oxide (MgO) nanofilm, a Pt nanofilm, and a p-type GaN substrate. The laser cavity modes could resonate following the whispering-gallery mode (WGM) among the six side surfaces by total internal reflection, and the single-mode lasing wavelength is centered at 390.5 nm with a linewidth of about 0.18 nm. The cavity quality factor Q is evaluated to about 2169. In the laser structure, the usage of Pt and MgO buffer layers can be utilized to engineer the band alignment of ZnO:Ga/GaN heterojunction, optimize the p-n junction quality and increase the current injection. Thus, the well-designed device structure can seamlessly unite the electron-hole recombination region, the gain medium, and optical microresonator into the PtNPs@ZnO:Ga wire perfectly. Such a single MW microlaser is essentially single-mode regardless of the gain spectral bandwidth. To study the single-mode operation, PtNPs working as superabsorber can engineering the multimode lasing actions of ZnO:Ga MWs even if their dimensions are typically much larger than that of lasing wavelength. Our findings can provide a straightforward and effective scheme to develop single-mode microlaser devices based on one-dimensional wire semiconductors.

关键词： mode lasing cavity

Expressed sequence tags analysis revealing the taxonomic position and fatty acid biosynthesis in an oleaginous green microalga,Myrmecia incisa Reisigl(Trebouxiophyceae,Chlorophyta)

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Chinese Science Bulletin 2012年第25期57卷 3342-3352页

作者： OUYANG LongLing DU DaoHai YU shuiyan LI ChunYang ZHANG ChengWu GAO HongJian ZHOU ZhiGang Key Laboratory of Genetic Resources and Utilization in Aquaculture Shanghai Ocean University Shanghai 201306 China College of Life Sciences Ji'nan University Guangzhou 210009 China Shanghai Medical College of Fudan University Shanghai 200030 China

cDNA library of Myrmecia incisa H4301 was constructed using λ phage *** library consisted of 1.5×10 6 clones with a recombination rate of 90%,and 1942 clones were randomly *** 1854 readable expressed sequence tags(ESTs) were clustered into 596 non-redundant sequences(NRSs),among which 126 NRSs were from 1384 ESTs,showing a high *** the 596 NRSs,30 were ribosomal RNA,and 152 significantly matched with those available in NCBI database and JGI Genome Portal,the latter were divided into nine ***,59 NRSs were involved in photosynthesis,the respiratory electron transport chain,ATP synthesis,oxidation reduction,fatty acid biosynthesis,glucose metabolism,protein metabolism,and small molecular metabolism,suggesting that these genes were abundantly transcribed during energy and substance ***-carrier protein,ferrodoxin and fatty acid elongase genes obtained from this cDNA library enabled presumption of a possible biosynthesis pathway of ArA in *** usage analysis of 142 NRSs with 17798 codons in the predicted coding regions showed that the average G+C content level of the total codons was 55.39%,and that of the third position in base trimers was 66.42%,indicating a strong bias toward cytosine and/or guanosine in this algal *** all synonymous codons,NAG was most favored,while NUA was most *** trees inferred from ribulose-1,5-bisphosphate carboxylase/oxygenase small subunit genes and the extra partial sequences of 18S rRNA obtained from this library demonstrated that *** belonged to Trebouxiophyceae and was significantly clustered with *** SAG 2007,Lobosphaera tirolensis,***,and Parietochloris incisa,but was clearly distant from *** and *** electron microscopy revealed pyrenoids traversed by many parallel thylakoids membranes,while starch grains were only clearly observed when cells were grown under nitrogen *** on combined in

关键词：表达序列标签生物合成途径脂肪酸合成栗属分类地位微藻 cDNA文库密码子使用

Lifting surface reconstruction of Au(100)by tellurium adsorption

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Nano Research 2023年第5期16卷 6967-6973页

作者： Erwen Zhang Huan Lu Wei Zhang shuiyan Cao Yang Wang Rong Rong Ying Liu Zhuhua Zhang Ming Yang Yanpeng Liu Wanlin Guo Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education State Key Laboratory of Mechanics and Control of Mechanical StructuresInstitute for Frontier ScienceNanjing University of Aeronautics and AstronauticsNanjing 210016China College of Jincheng Nanjing University of Aeronautics and AstronauticsNanjing 210016China Department of Applied Physics The Hong Kong Polytechnic UniversityHung HomHong KongChina

The Au(100)surface has been a subject of intense studies due to excellent catalytic activities and its model character for surface ***,the spontaneous surface reconstruction buries active Au(100)plane and limits practical applications,how to controllably eliminate the surface reconstruction over large scale remains ***,we experimentally and theoretically demonstrate that simple decoration of the Au(100)surface by tellurium(Te)atoms can uniquely lift its reconstruction over large *** tunneling microscopy imaging reveals that the lifting of surface reconstruction preferentially starts from the boundaries of distinct domains and then extends progressively into the domains with the reconstruction rows perpendicular to the boundaries,leaving a Au(100)-(1×1)surface *** Au(100)-(1×1)is saturated at~84%±2%with respect to the whole surface at a Te coverage of 0.16 *** further increasing the Te coverage to 0.25 monolayer,the Au(100)-(1×1)surface becomes reduced and overlapped by a well-ordered(2×2)-Te *** similar behavior is found for Te-decorated Au(111),Cu(111),Cu(100)surfaces,nor for the decorated Au(100)with other *** result may pave the way to design Au-based catalysts and,as an intermediate step,even potentially open a new route to constructing complex transition metal dichalcogenides.

关键词： surface reconstruction of Au(100) tellurium facet-dependence adsorption energy anisotropy

Phylogenetic analysis of 48 gene families revealing relationships between Hagfishes, Lampreys, and Gnathostomata

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Journal of Genetics and Genomics 2008年第5期35卷 285-290页

作者： shuiyan Yu Weiwei Zhang Ling Li Huifang Huang Fei Ma Qingwei Li Institute of Marine Genomics ＆ Proteomics Liaoning Normal University Dalian 116029 China Department of Medical Genetics China Medical University Shenyang 110001 China

It has become clear that the extant vertebrates are divided into three major groups, that is, hagfishes, lampreys, and jawed vertebrates. Morphological and molecular studies, however, have resulted in conflicting views with regard to their interrelationships. To clarify the phylogenetic relationships between them, 48 orthologous protein-coding gene families were analyzed. Even as the analysis of 34 nuclear gene families supported the monophyly of cyclostomes, the analysis of 14 mitochondrial gene families suggested a closer relationship between lampreys and gnathostomes compared to hagfishes. Lampreys were sister group of gnathostomes. The results of this study supported the cyclostomes. Choice of outgroup, tree-making methods, and software may affect the phylogenetic prediction, which may have caused much debate over the subject. Development of new methods for tackling such problems is still necessary.

关键词： phylogenetic relationship hagfish lamprey gnathostome outgroups tree-making method