25 research outputs found

    中国人日本語専攻生の学術コミュニティへの参加過程の分析 : 中国の大学から日本の大学院へ

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    華中科技大学一橋大学大学院 博士課程一橋大学大学院 博士課程一橋大学大学院 博士課程Huazhong University of Science and TechnologyPh.D. Student, Hitotsubashi UniversityPh.D. Student, Hitotsubashi UniversityPh.D. Student, Hitotsubashi University本稿では,中国から来日した一人の日本語専攻生Iさんを対象に,彼女が来日前及び来日後に参加した複数のコミュニティへの参加過程を分析した。調査はIさんに対して一年半に渡り,5回の半構造化インタビューを行い,そのデータをSCAT(Steps for Coding and Theorization)を用いて分析した。分析の結果,中国の大学の日本語授業とゼミ,日本の大学(院)の授業とゼミ,また,より大きな研究者コミュニティや学術コミュニティに参加することを通して,Iさんは学術コミュニティへの参加姿勢が能動的になったことが確認された。分析の結果に基づき,筆者らは学術コミュニティ間の移動が中国人日本語専攻生に何をもたらしたのかをアイデンティティ変容の側面から考察した。その結果,中国人日本語専攻生の持つ固有のアイデンティティに加え,日本語学習者と日本語使用者が統合された「日本語話者」,さらに大学院に進学することによるキャリア転換がもたらす「〇〇専門家」という多層なアイデンティティの獲得があったことが分かった。最後に,本調査結果を踏まえた日本語教育への提言として,「学習者と接する際の見方の転換」,「キャリア形成を踏まえた上での日本語教育」,及び「学びの実感を生み出す授業の工夫」という三つを指摘した。The subject of this study is Ms. I, a Chinese-born Japanese-language graduate in Japan. We analyzed her participation process in multiple communities before and after arriving in Japan. The survey was conducted over the course of 1.5 years and involved 5 semi-structured interviews with Ms. I. We analyzed the interview data using the Steps for Coding and Theorization (SCAT). The results of the analysis showed that Ms. I\u27s participation in Japanese-language classes and seminars at her Chinese university, in classes and seminars at her Japanese university (graduate school), as well as in a wider community of researchers and the academic community, allowed her approach to participation to become more active and her identity to become more multi-layered. It then appears that her movement between the multiple communities transformed her Japanese from a learning content to a tool for participation. Moreover, it was suggested that her identity changed from that of a Japanese learner to that of a Japanese user and that her career movement from Japanese-major student to 〇〇 expert facilitated the formation of a new identity. Lastly, we pointed out a “change of the angle of observation on the Japanese learners,” “Japanese-language education as a foundation of career development,” and “classroom techniques to create student awareness of their own learning” as three suggestions for Japanese-language education

    Parkes problems revisited - Application of response number

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    Response number R-n(n), proposed in [3, 4], is an important independent dimensionless number for the dynamic response of structures [2]. In this paper, the response number is applied to the dynamic plastic response of the well-known Parkes' problem, i.e., beams struck by concentrated mass

    Dendritic nanostructures and pattern formation in anodic bonding of Pyrex glass and crystalline silicon coated with aluminum ultra-thin film

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    Anodic bonding,with metal or alloy thin films as an intermediate layer,findsincreasing applications in micro/nano electromechanical systems(MEMS/NEMS).Atthe bonding temperature of 350℃,voltage of 400 V and duration of 30 minutes,theanodic bonding is completed between Pyrex glass and crystalline ..

    塑性应变率的尺度效应

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    通过对相似模型中若干力学量和典型动力学实验中部分结果和结论的探讨分析,研究了动态载荷下率相关材料相似模型的尺度效应,阐述了塑性应变率具有的尺度效应对相似模型在动态载荷下的影响,指出了塑性应变率尺度效应的一个重要特征是,随着结构特征尺度的减小,其动力行为的应变率敏感效应增强。Structures will always respond to the action of external loading to some extent. With the gradual increase of the external loads, the structural deformation will be in the elastic range at beginning, and then elastic-plastic deformation will occur if the external loading exceeds the elastic limit loading capacity of the structure [1]. Practical engineering structures are usually made up of many basic structural components such as beams, plates, arches, shells and so on. When these basic structure

    Formation of dendritic nanostructures in Pyrex glass anodically bonded to silicon coated with an aluminum thin film

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    Anodic bonding with thin films of metal or alloy as an intermediate layer, finds increasing applications in micro/nanoelectromechanical systems. At the bonding temperature of 350 degrees C, voltage of 400 V, and 30 min duration, the anodic bonding is completed between Pyrex glass and crystalline silicon coated with an aluminum thin film with a thickness comprised between 50 and 230 nm. Sodium-depleted layers and dendritic nanostructures were observed in Pyrex 7740 glass adjacent to the bonding interface. The sodium depletion width does not increase remarkably with the thickness of aluminum film. The dendritic nanostructures result from aluminum diffusion into the Pyrex glass. This experimental research is expected to enhance the understanding of how the depletion layer and dendritic nanostructures affect the quality of anodic bonding. (C) 2007 Elsevier B.V. All rights reserved

    微电子机械系统的计算机辅助设计

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    概要论述了微电子机械系统的计算机辅助设计。分析了MEMS CAD系统所应具有的主要内容和系统模拟中的关键问题。采用基于能量的方法构造可取代全三维完整模拟的低阶分析宏模型来近似表示静电致动微系统结构变形,使微系统的计算机辅助设计和仿真模拟系统更易于实现

    Structural Failure Analysis and Numerical Simulation of Micro-Accelerometers under Impulsive Loading

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    Micromachined accelerometer is a kind of inertial MEMS devices, which usually operate under intensive impact loading. The reliability of micromachined accelerometers is one of the most important performance indices for their design, manufacture and comme

    微加速度计在冲击载荷作用下的失效分析

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    抗冲击性是加速度计的一个主要性能指标,跌落实验则是一种测试结构冲击作用的有效方式,利用跌落实验对一种折叠梁式微加速度计在冲击载荷作用下的失效模式进行了研究。实验发现在微加速度计中主要存在两种主要的失效模式,即微梁结构的整体破坏和微结构在横向之间的粘附。应用拟静态和能量方法给出微结构在冲击载荷下的响应
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