5259 research outputs found
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Tensor Self-Organizing Map
No full text第1章 序論||第2章 基礎知識||第3章 Tensor SOM:TSOM||第4章 人工データを用いたTSOM の検証||第5 章 TSOM によるアンケートデータ解析||第6章 TSOM のバリエーション||第7章 討論||第8章 総
Design and Performance of Honeycomb Structure for Nanobbubles Generating Apparatus
Full text linkProceedings of 5th International Conference on Fracture Fatigue and Wear, FFW 2016, 24-26 August 2016, Kitakyushu, JapanIn recent years, nanobubble technology has drawn great attention due to their wide applications in many fields of science and technology, such as seafood long term storage by using nitrogen nanobubble water circulation to slow the progressions of oxidation and spoilage. From previous study, a kind of honeycomb structure for high efficiency nanobubble generation has been investigated. In addition, the small-scale honeycomb structure is designed for the broader applications. Comparing with stainless steel, acrylic resin and titanium have good corrosion resisting property in various liquids including the sea water.
Therefore, acrylic resin and titanium are considered in this study. In this paper, the honeycomb structure is optimized and improved. The strength of the honeycomb structure is also analyzed by FEM. The relationship between nanobubble generation efficiency and structure type is discussed
Experimental Verification of a New Evaluation Circuit for DC-link Capacitors Used in a Three-Phase Inverter
Full text link電力技術／電力系統技術／半導体電力変換技術合同研究会, 3月8日-9日, 2016年, 九州工業大学 戸畑キャンパス, 福岡県 DC-link capacitors in power electronic converters are a major constraint on improvement of power density as well as reliability. Evaluation of the dc-link capacitors in terms of power loss, ageing, and failure rate will play an important role in design stages of the next-generation power converters. This paper presents experimental verification of a new evaluation circuit for dc-link capacitors used in a three-phase inverter, which is intended for testing power loss, failure rate, ageing, and so on. The circuit consists of a full-scale current-rating and downscale voltage-rating three-phase inverter, a low-voltage dc supply, and a high-voltage dc supply, which brings smaller power rating than that of a full-scale voltage-rating inverter by a factor of ten. A 1.2-kV 6400-W prototype was designed and constructed using a 120-V 640-W inverter, which verifies that the new circuit provides the same ripple current waveform as that of the full-scale three-phase inverter
Built in Load Current Measuring Method for IGBT Power Module
Full text link電力技術／電力系統技術／半導体電力変換技術合同研究会, 3月8日-9日, 2016年,
九州工業大学 戸畑キャンパス, 福岡県 This paper proposes a new output current measuring method using a digital circuit and a tiny current sensor. The sensor picks up a switching current flowing through an IGBT, and can be embeded in an IGBT module. A digtal circuit based on an FPGA is used for converting the output signal of the sensor into the waveform following the output current. Experimental results verifies that the proposed method detects a dc component of the output current as well as a ripple component
Use of Chitosan-Siloxane Porous Hybrid Scaffold as Novel Burr Hole Covers
Full text linkChitosan-siloxane porous hybrids have high potential as tissue scaffolds. This manuscript focuses on the regeneration of skull bone after a burr hole. This was done using hybrids incorporated with calcium or coated with hydroxyapatite after soaking in a phosohate solution. The specimens fitted the burr hole and the cells migrated into the pores form surrounding bone tissue. After implanation no inflammation was observed and the specimens degraded 12 months later. A coating of hydroxyapatite accelerated bone formation compared
自己組織化マップ(SOM)とマルコフモデルに基づいた行動と感情の選択システムの開発
Full text link九州工業大学博士学位論文（要旨）学位記番号：情工博甲第312号 学位授与年月日平成28年3月25
競合型進化的計算法に基づく階層的最適化による複数の探索空間を持つ問題の解決に関する研究
Full text link九州工業大学博士学位論文（要旨）学位記番号：生工博甲第266号 学位授与年月日平成28年3月25
