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Wyszukujesz frazę "Okada, N." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Development of automatic collision avoidance system and quantitative evaluation of the manoeuvring results
Autorzy:
Nakamura, S.
Okada, N.
Powiązania:
https://bibliotekanauki.pl/articles/116438.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
collision avoidance
automatic collision avoidance system
quantitative evaluation
manoeuvring
congested waters
colregs
collision risk
anti-collision
Opis:
The automatic collision avoidance system introduced in this paper is a system constantly calculating optimal manoeuvring method from the risk and economic preference in the ship manoeuvring space where the course change and the deceleration are performed. The authors also propose a system that quantitatively evaluates the collision avoidance manoeuvring results. Based on the evaluation results of this system, the authors are setting parameters so that ship manoeuvring that does not give anxiety to target ships to be avoided is also realized in automatic collision avoidance manoeuvring. In addition, comparison between the manoeuvring results of the automatic collision avoidance system and the veteran captain's manoeuvring results was quantitatively compared by the proposed evaluation system. Verification experiments were successfully conducted to verify the effectiveness of the proposed automatic collision avoidance system on the actual ship navigating in congested waters.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 133-141
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chassis Design of a Mobile Robot for Reducing Weight by Excluding Suspension Elements
Autorzy:
Okada, T.
Mimura, N.
Shimizu, T.
Powiązania:
https://bibliotekanauki.pl/articles/385173.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
mobile robot
chassis flexure
suspension-less
FEM
wheelchair
Opis:
This paper proposes the design concept that prevents its total weight from increasing. The object of the methodology is to modify a conventional robot chassis for structural simplicity by composing the chassis from an elastic material so that it can reduce vibration and shock to the body. This idea makes it unnecessary to attach additional elements, such as suspension units; in addition, it means that it is possible to easily deform the chassis by forming long holes, and to decrease the total weight of the robot, even when the chassis is thick enough for functionality. It contributes to preventing the weight of the power source from increasing. Structural models for analyzing flexure of the chassis using the finite element method (FEM) are pursued. Also, dynamic behaviors of the chassis are clarified based on the modal analysis. The minor difference in error between the experimental and analytical data verifies that the models are useful in a practical application.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2015, 9, 2; 42-51
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and evaluation of novel mri contrast agents of chemically modified GD-DTPA complexes with sugars
Autorzy:
Sugiyama, M.
Yamashita, M.
Yu, G.
Fujie, M.
Ogawa, K.
Ozaki, N.
Aoki, T.
Mizuno, S.
Okada, S.
Tachi, K.
Aoshima, K.
Sankar, U. R.
Kumar, B. S.
Takehara, Y.
Sakahara, H.
Powiązania:
https://bibliotekanauki.pl/articles/385252.pdf
Data publikacji:
2009
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
MRI contrast agent
Gd(III)-DTPA
tumor imaging
Opis:
MRI is one of medical diagnostic imaging technologies that can draw the cross section in the body. To obtain a clearer image, Gd complexes are often used as MRI contrast agents. Gd-DTPA (Gd-Diethylenetriaminepentaacetate, Magnevist registered trademark ) is used in particular as the MRI contrast agents. We prepared and evaluated novel MRI contrast agents that were chemically modified Gd-DTPA with sugars (represented as Gd-DTPA-Sugar) via hydrolysis route for providing specificity to target organs and tissues. Gd-DTPASugar complex showed an excellent potential for the MRI contrast agent (r1=31.2 s-1mM-1). Gd-DTPA-Sugar complexes alternatively prepared by shorter synthetic route without protection/ deprotection (hydrolysis) method showed inferior results (r1=6.3 and 8.1 s-1mM-1) to the hydlized product.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 191-194
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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