1,720,960 research outputs found
The Study about the Samll Reentry Vehicle
Get PDF将来の宇宙輸送系開発に資する小型実験機および飛行制御システムの開発を行った.開発した全長1m程度の小型実験機には実機と同様の様々な機能を有するアビオニクス系を搭載し,先進的な飛行制御系を実装した飛行実験を安価で手軽に行うことができる.また突風外乱や故障,飛行条件の変化などに対応する新しい外乱オブザーバと外乱予測制御器の設計手法を構築した.最後に提案システムを実装した飛行試験により性能評価を行った.The small experimental airplane and flight control system were developed. The developed airplane has an avionics system with various functions. An observer-based disturbance estimation method and an output-feedback preview control method were constructed. The proposed system was applied to the experimental airplane and the flight testing was performed.出典：研究課題「ピギーバックを利用した多目的超小型自律再突入機の基礎研究」課題番号20686058
（KAKEN：科学研究費助成事業データベース（国立情報学研究所））
（https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-20686058/20686058seika/）を加工して作成金沢大学理工研究域機械工学系research repor
Safety System of Drone Operation based on On-line Identification of the Human Operator
Get PDFドローンや自動運転自動車などの操縦者をリアルタイムモデリングし，モデルパラメータから操縦者状態を推定する手法の検討を行った．機体の運動や周囲環境の変化に対する操縦者の振る舞いをモデル化し，そのモデルパラメータで操縦者状態を評価する．操縦シミュレータ実験を行い，操縦者モデルを同定し解析した結果，ワークロード量とモデルの残差，モデル変動などとの相関があることが明らかになった．既存手法は心拍などの生体信号を計測してその変化を評価する．一方提案手法は，刺激に対する操縦者ダイナミクスの応答を評価する手法であるため，車両振動や外部環境の変化に適切に反応できているか直接評価することができる．The estimation algorithm of the operator condition using identified operator mode was discussed. The operator models of the drone and self-driving car were identified as a response model to the vehicle motion and the condition change around the car such as a distance to the forward car. The output of the operator model are control behavior and the movement of the viewpoint. These model structures enable to analyze the inner condition of the human operator.
The flight and driving simulator were conducted and the operating experiments of a drone and self-driving car with and without subtask were performed. The relations between the identified model and the workload imposed by the subtask were analyzed. The result indicated that the residual and the model variations of the identified model have correlations with the workload.研究課題/領域番号:26420810, 研究期間(年度):2014-04-01 - 2017-03-31出典：「パイロットモデルのオンライン同定を核とした小型機・無人航空機の安全性向上システム」研究成果報告書 課題番号26420810
（KAKEN：科学研究費助成事業データベース（国立情報学研究所））
（https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-26420810/26420810seika/)を加工して作成金沢大学理工研究域フロンティア工学系research repor
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
