623 research outputs found

    気象・海象データ 1986

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    気象・海象データ 1987

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    Studies on the Wood Preservatives. : XXIII. On the Cause of the bad Penetrability of Sodium Pentachlorphenol Solution into Wood.

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    この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました

    The Research of Large Scale Production of Graphene and Its Application in Li-S Rechargeable Battery

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    石墨烯是由单层碳原子组成的二维蜂窝状结构,具有高比表面、高电导率和高稳定性等特点,在分散和利用纳米活性材料中起着重要的作用,是二维纳米材料的典型代表。石墨烯在开发新型功能性复合材料用于高比能、高比功率的新型化学电源体系(例如锂硫电池)中发挥重要的作用。本文围绕氧化石墨烯和石墨烯的制备,以及石墨烯在锂硫电池中的应用展开研究,主要内容如下: 1. 氧化石墨烯制备。对传统ModifiedHummers处理膨胀石墨的工艺进行改进,提高单层氧化石墨烯的剥离效率和产量,并简化工艺步骤,缩短工艺流程。该工艺初步实现量化生产氧化石墨烯,所制备的氧化石墨烯为单层材料,厚度为0.6~0.8nm左右,尺寸在几微米...Single atom layer graphene exhibits high specific surface area, high conductivity and excellent stability and these advantages enable graphene a promising application in the preparation of functional nanomaterials. Meanwhile, graphene also plays an important role in the research of high energy-density and power-density rechargeable batteries system, i.e. lithium sulfur battery. The thesis herein f...学位:工程硕士院系专业:化学化工学院_化学工程学号:X201019200

    ジベール氏薔薇色粃糠疹ニ就テ

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    Experimental investigation of the mechanisms underlying superior dielectric properties of polymer nanocompsites

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    制度:新 ; 報告番号:甲2837号 ; 学位の種類:博士(工学) ; 授与年月日:2009/2/25 ; 早大学位記番号:新505

    安全级数字化系统软件测试用例生成方法研究

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    基于概率风险评价(PRA)和物理仿真模型,本文提出了一种针对核电厂安全级数字化控制系统的软件测试用例生成方法。所产生的测试用例包含了风险指引信息,能定性描述软件实际操作场景。文中以某核电厂保护系统子系统软件为例,分析系统的故障模式和子系统软件输入空间,建立软件的运行剖面,结合RELAP5仿真模型,获得了可用于测试核电厂安全级数字化控制系统软件可靠性的测试用例。该方法产生的测试用例为开展核电厂安全级数字化控制系统的软件可靠性定量评估研究奠定了基础。厦门大学能源学院发展基金(2017NYFZ01);福建省科技计划(2016H0034)资助

    デジタルオーディオプレーヤの操作性に関する基礎的研究

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    Until digital audio players appeared the capacity of mobile audio players was only about ten songs. Now digital audio players have a capacity of thousands of songs. Searching among those thousands of songs for the one you want to hear can, however, be inconvenient. The authors, hoping to identify aspects of digital audio players that need to be improved, performed experiments on the usability of 3 different digital audio players using protocols and interviews. Ten subjects performed the same set of tasks using the 3 different players and their procedures and answers to the interviews were analyzed. This revealed the following 5 problems with the digital players.1 The function and the rapidity of response did not always match the users\u27 intentions.2 The organization of the tunes could not be understood easily.3 The large number of tunes caused the users to feel stress.4 The display of letters was hard to read.5 Problems occurred when the subjects attempted to manipulate the players in the same way they had manipulated players they had used previously but which did not work with the new players
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