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    Wyświetlanie 1-8 z 8
    Tytuł:
    A framework for unknown environment manipulator motion planning via model based realtime rehearsal
    Autorzy:
    Um, D.
    Ryu, D.
    Tematy:
    sensor based planning
    randomized sampling
    unknown environment motion planning
    collision avoidance
    cognitive planning
    Pokaż więcej
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Powiązania:
    https://bibliotekanauki.pl/articles/384972.pdf  Link otwiera się w nowym oknie
    Opis:
    In this paper, we propose a novel framework for unknown environment planning of manipulator type robots. Unknown environment motion planning, by its nature, requires a sensor based approach. The problem domain of unknown environment planning, when compared to model based approaches, is notoriously harder (NPHARD) in terms of demanding technical depth especially for difficult cases. The framework we propose herein is a sensor based planner composed of a sequence of multiple MBPs (Model Based Planners) in the notion of cognitive planning using realtime rehearsal. That is, one can use a certain model based planner as a tactical tool to attack location specific problems in overall planning endeavor for an unknown environment. The enabling technology for the realtime rehearsal is a sensitive skin type sensor introduced in the paper.We demonstrate the feasibility of solving a difficult unknown environment problem using the introduced sensor based planning framework.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A novel flexible micro assembly system: implementation and performance analysis
    Autorzy:
    Um, D.
    Ryu, D.
    Dong, B.
    Foor, D.
    Hawkins, K.
    Tematy:
    flexible manufacturing
    microassembly
    micro 3D vision
    Pokaż więcej
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Powiązania:
    https://bibliotekanauki.pl/articles/384367.pdf  Link otwiera się w nowym oknie
    Opis:
    Demands for micro/nano products and assembly systems have been raised significantly to meet the ever complex technical needs for modern society. In this paper, we share the experiences and results of the study on the flexible micro assembly workcell focused primarily on a novel system implementation and system performance analysis. For flexible and autonomous assembly operations, we investigated a novel model based 3D depth measurement technology for faster and cost effective means to promote autonomous micro assembly systems in various industries. Micro parts, by its nature, are known of their shapes in advance for the majority of micro applications. We take advantage of the previously known shape of micro parts and hence apply a model based approach for a faster and cost effective localization and 3D depth measure of randomly loaded micro-parts on the workcell. The proposed 3D depth measuring method is based on the pattern recognition and multi-focus technique enabling it to extract only information useful for micro parts assembly for faster recognition. For demonstration purpose, silicon based oxide gears are fabricated by bulk micromachining and are used to study performance indices and to prove the usefulness of the proposed micro 3D depth measurement technology.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Entanglement conditions involving intensity correlations of optical fields: the case of multi-port interferometry
    Autorzy:
    Ryu, J.
    Marciniak, M.
    Wieśniak, M.
    Kaszlikowski, D.
    Żukowski, M.
    Tematy:
    03.65.Ud
    42.50.-p
    03.67.Bg
    03.67.Mn
    Pokaż więcej
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Powiązania:
    https://bibliotekanauki.pl/articles/1052945.pdf  Link otwiera się w nowym oknie
    Opis:
    Normalized quantum Stokes operators introduced in Phys. Rev. A 95, 042113 (2017) enable one to better observe non-classical correlations of entangled states of optical fields with undefined photon numbers. For a given run of an experiment the new quantum Stokes operators are defined by the differences of the measured intensities (or photon numbers) at the exits of a polarizer divided by their sum. It is this ratio that is to be averaged, and not the numerator and the denominator separately, as it is in the conventional approach. The new approach allows to construct more robust entanglement indicators against photon-loss noise, which can detect entangled optical states in situations in which witnesses using standard Stokes operators fail. Here we show an extension of this approach beyond phenomena linked with polarization. We discuss EPR-like experiments involving correlations produced by optical beams in a multi-mode bright squeezed vacuum state. EPR-inspired entanglement conditions for all prime numbers of modes are presented. The conditions are much more resistant to noise due to photon loss than similar ones which employ standard Glauber-like intensity, correlations.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Solvent Extraction of Co, Ni and Mn from NCM Sulfate Leaching Solution of Li(NCM)O2 Secondary Battery Scraps
    Autorzy:
    Hong, H. S.
    Kim, D. W.
    Choi, H. L.
    Ryu, S.-S.
    Tematy:
    waste recycling
    NCM-system lithium ion battery
    reduction
    leaching
    Pokaż więcej
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Powiązania:
    https://bibliotekanauki.pl/articles/355577.pdf  Link otwiera się w nowym oknie
    Opis:
    As a part of the study on recycling Li(NCM)O2 lithium-ion battery scraps, solvent extraction experiments were performed using different extraction agents such as PC88A, Cyanex272 and D2EHPA to separate Co, Ni and Mn from the leaching solution. When the ratio of Mn to Ni was about 0.4 in the leaching solution, the separation factor for Co and Mn was found to be less than 10 so that the separation of Co and Ni was insufficient. When solvent extraction was done using the solution with the lower Mn/Ni ratio of 0.05 where Mn was removed by potassium permanganate and chlorine dioxide, more than 99% of Mn could be extracted through five courses of extraction using 30vol% D2EHPA while the extraction rates of Co and Ni were around 17% and 11%, respectively. In the case that Mn was removed from the solution, the extraction rate of Co was higher than 99% whereas less than 7% Ni was extracted using Cyanex272 suggesting that Co and Ni elements were effectively separated.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Supernova model discrimination with Hyper-Kamiokande
    Autorzy:
    Mineev, O.
    Minakata, H.
    Nakayoshi, K.
    Gialanella, L.
    Zaldivar, B.
    Kato, A.
    Kim, S. Y.
    Ashida, Y.
    Wilkes, R. J.
    Garode, S.
    Feng, J.
    Vilela, C.
    Pac, M. Y.
    Karlen, D.
    Suganuma, T.
    Kajita, T.
    Paganini, P.
    Lu, X.
    Gramegna, F.
    Nakadaira, T.
    Yano, T.
    Ostrowski, Michał
    Vivolo, D.
    Matusiak, M.
    Fiorillo, G.
    Mazzucato, E.
    Finch, A.
    Hiraide, K.
    Navarro-Garcia, B.
    Mondal, T.
    Ikeda, M.
    Insler, J.
    Kudenko, Y.
    Sato, K.
    Kumita, T.
    Malinský, M.
    Lamers James, M.
    Nascimento Machado, L.
    Wronka, S.
    Ohta, K.
    Iijima, T.
    Gornea, R.
    Maret, L.
    Jeon, S. H.
    Lim, I. T.
    Fiorentini, A.
    Matsumoto, R.
    O'Connor, E.
    Coleman, J.
    Harada, M.
    Kikawa, T.
    Danilov, M.
    Kearns, E.
    Yamaguchi, Y.
    Magaletti, L.
    Cartwright, S. L.
    Nishimura, Y.
    Jang, J. S.
    Radicioni, E.
    Vasseur, G.
    Barr, G.
    Porwit, K.
    Nakagiri, K.
    La Commara, M.
    Learned, J. G.
    Hirota, S.
    Marchi, T.
    Mollo, C. M.
    Di Palma, I.
    Sakashita, K.
    Izmaylov, A.
    El Hedri, S.
    Tsukamoto, T.
    Ochoa-Ricoux, J. P.
    Takemoto, Y.
    Medhi, A.
    Bonavera, L.
    Hartz, M.
    Pozimski, J.
    Zakrzewski, T.
    Chabera, M.
    Kinoshita, T.
    Stankevich, K. L.
    Payne, D.
    Renner, J.
    Doyle, T. A.
    Sashima, I.
    Matsuno, S.
    Takenaka, A.
    Loverre, P.
    Wachala, T.
    Gumplinger, P.
    Booth, N.
    Onishchuk, Y.
    Ichikawa, A. K.
    Ovsiannikova, T.
    Suzuki, A. T.
    Kameda, J.
    Sano, S.
    Yoo, J.
    Nakai, S.
    Hartfiel, B.
    Jiang, M.
    Moon, C. S.
    Pari, M.
    Jamieson, B.
    Hoshina, K.
    Nakajima, Y.
    Feusels, T.
    Ruggles, C.
    Drapier, O.
    Prouse, N. W.
    Kurjata, R.
    Mefodiev, A.
    Sekiguchi, T.
    Aushev, V.
    Labarga, L.
    Blanchet, A.
    Uchida, Y.
    Berardi, V.
    Yokoyama, M.
    Evangelisti, A.
    Kormos, L. L.
    Yeum, D. N.
    Wendell, R. A.
    Iacob, F.
    Ogawa, N.
    O'Sullivan, E.
    Yamamoto, K.
    Itow, Y.
    Boyd, S. B.
    Pasternak, J.
    Ruggeri, A. C.
    Ozaki, H.
    Boiano, A.
    Smy, M. B.
    Roth, S.
    Kim, S. B.
    Ferrazzi, B.
    Xie, Z.
    Xin, T.
    Stellacci, S. M.
    Fukuda, Y.
    Kouzakov, K. A.
    Kim, J. H.
    Sobczyk, J.
    Drakopoulou, E.
    Miki, S.
    De la Fuente, E.
    Munteanu, L.
    Yu, M.
    Hernando-Morata, J. A.
    Longhin, A.
    Orozco-Luna, F.
    Zarnecki, G.
    Korzenev, A.
    Spina, R.
    Lamoureux, M.
    Mongelli, M.
    Tzanov, M.
    Ioannisian, A.
    Cafagna, F. S.
    Mermod, P.
    González-Nuevo, J.
    Carroll, A.
    Garde, C.
    Grella, G.
    Bernardini, E.
    Palladino, V.
    Kravchuk, L.
    Boschi, T.
    Playfer, S.
    Tanaka, M.
    Suvorov, S.
    Rountree, S. D.
    Aihara, H.
    Buchowicz, A.
    Ameli, F.
    Akutsu, R.
    Hassani, S.
    Mahn, K.
    Fernández-Martinez, E.
    Cicerchia, M.
    Barker, G. J.
    Martin, D.
    Idrissi Ibnsalih, W.
    Anghel, I.
    Fernandez, P.
    Jonsson, P.
    Cook, L.
    Ishida, T.
    Wark, D.
    Martin, J. F.
    Borjabad, S.
    Checchia, C.
    Seo, J. W.
    Lindner, T.
    Pavin, M.
    Mora, F. J.
    Miura, M.
    Mellet, L.
    Russo, S.
    Sobel, H. W.
    Taketa, A.
    Ziembicki, M.
    Khotjantsev, A.
    Nakahata, M.
    Di Meo, P.
    Fujii, Y.
    Daz Lopez, G.
    Riccio, C.
    Wilson, J. R.
    Ito, S.
    Marinelli, A.
    Jang, H. I.
    Shimizu, I.
    Collazuol, G.
    Finley, C.
    Niewczas, K.
    Gorin, A.
    Berns, L.
    Antonova, M.
    Guigue, M.
    Densham, C. J.
    Sarmah, P.
    Poutissou, J. -M.
    Bozza, C.
    McGrew, C.
    Calabria, N. F.
    Ito, H.
    Bhadra, S.
    Peña-Garay, C.
    Shiozawa, M.
    Skwarczynski, K.
    Mariani, C.
    Kakuno, H.
    Magar, K.
    Konaka, A.
    Galinski, G.
    Ludovici, L.
    Taani, M.
    Yen, S.
    Friend, M.
    Shaykina, A.
    Cuen-Rochin, S.
    Soler, F. J. P.
    Jakkapu, M.
    Mezzetto, M.
    Murase, K.
    Pointon, B. W.
    Miller, E. W.
    Marti, Ll.
    Shin, C. D.
    Dumarchez, J.
    Kryukov, A. P.
    Kasperek, J.
    Ishidoshiro, K.
    Nakamura, KI.
    Pastore, C.
    Inomoto, M.
    Gomez-Cadenas, J. J.
    Suárez Gómez, S. L.
    Kisiel, J.
    Lee, J.
    Popov, A.
    Patel, D. A.
    Vijayvargi, A.
    Ellis, J.
    Joo, K. K.
    Khabibullin, M.
    Suzuki, Y.
    Grassi, M.
    Minamino, A.
    Svoboda, R.
    Malek, M.
    Walker, J.
    Zalipska, J.
    Menjo, H.
    Rubbia, A.
    Fitton, M.
    Rajda, P. J.
    Shinoki, M.
    Valentino, V.
    Tada, M.
    Santucci, G.
    Horiuchi, S.
    Giganti, C.
    Mehta, P.
    Seo, S. H.
    Kotsar, Y.
    Vyalkov, M. M.
    Holin, A.
    Choubey, S.
    Studenikin, A. I.
    Quiroga, A. A.
    Esmaili, A.
    Ishino, H.
    Bronner, C.
    Kobayashi, T.
    Bravo-Berguño, D.
    Okumura, K.
    Radics, B.
    Koshio, Y.
    Cao, S.
    Ishitsuka, M.
    Long, K. R.
    Sgalaberna, D.
    Makida, Y.
    Vagins, M. R.
    Monrabal, F.
    Di Lodovico, F.
    Bolognesi, S.
    Bose, D.
    Kazarian, N.
    Kalaczynski, P.
    Pinzon Guerra, E.
    Esteve, R.
    Kataoka, Y.
    Ogitsu, T.
    Takeuchi, Y.
    Stopa, K.
    Kano, Y.
    Parsa, S.
    Asaoka, Y.
    Deshmukh, N.
    Blaszczyk, F. d. M.
    Hastings, N. C.
    Quilain, B.
    Suzuki, S. Y.
    Koga, M.
    Litchfield, R. P.
    Richards, B.
    Feely, M.
    Laveder, M.
    McCarthy, M.
    Tortone, G.
    Rondio, E.
    Migliozzi, P.
    Kwak, K.
    Inoue, K.
    Przewlocki, P.
    Abe, K.
    Naseby, C. E. R.
    Nakaya, T.
    Pronost, G.
    Takhistov, V.
    Metelko, C.
    Bellato, M.
    Popov, B.
    Rychter, A.
    de Perio, P.
    Sonoda, Y.
    Nakamura, H.
    Frankiewicz, K.
    Bian, J.
    Batkiewicz-Kwasniak, M.
    Hill, J.
    Nicholls, T.
    Yershov, N.
    Nakayama, S.
    Lagoda, J.
    Santos, J. D.
    Spisso, B.
    Pidcott, C.
    Roskovec, B.
    Bubak, A.
    Tomatani-Sánchez, A. K.
    Zsoldos, S.
    Izumi, N.
    Sinnis, G.
    Moharana, R.
    Sánchez, M. L.
    Bravar, A.
    Dunne, P.
    Ferrario, P.
    Scott, M.
    Obrebski, W.
    Retiere, F.
    Kikec, M.
    Dergacheva, A.
    Alekseev, I.
    Gonin, M.
    Gao, J.
    Bandac, I.
    Hadley, D. R.
    Samani, S.
    Anthony, L. H. V.
    Rott, C.
    O'Keeffe, H. M.
    Noah, E.
    Skrobova, N.
    Migenda, J.
    Hayato, Y.
    Araya, A.
    Nakamura, K.
    Eklund, L.
    Suwa, Y.
    Tanaka, H. I.
    Leitner, R.
    Fedotov, S.
    Ryu, D.
    Garfagnini, A.
    Kowalik, K. L.
    De Rosa, G.
    King, S.
    Xia, J.
    Blondel, A.
    Kutter, T.
    Spradlin, P.
    Bernard, L.
    Chakraborty, S.
    Emery, S.
    Ospina, N.
    Pastuszak, G.
    Bergevin, M.
    Catanesi, M. G.
    Koch, L.
    Kolev, N.
    Ziętara, Krzysztof
    Jo, H. S.
    Nagao, Y.
    Lawe, M.
    Okamoto, K.
    Ballester, F.
    Maekawa, Y.
    Iwamoto, K.
    Cebriàn, S.
    Ricciardi, G.
    Zaremba, K.
    Mueller, Th. A.
    Rescigno, M.
    Moon, D. H.
    Matsubara, T.
    Dziewiecki, M.
    Herrero, V.
    Oyama, Y.
    Zito, M.
    Cowan, G.
    Tanaka, H.
    Dealtry, T.
    Koerich, L.
    Stawarz, Łukasz
    Yu, I.
    Jenkins, S. J.
    Yonenaga, M.
    Lavitola, L.
    Needham, M.
    Calvo-Mozota, J. M.
    Buizza Avanzini, M.
    Ali, A.
    Moriyama, S.
    Sanchez, M. C.
    Adrich, P.
    Thiesse, M.
    Tsui, K. M.
    Vinning, W. G. S.
    Yanagisawa, C.
    Kuze, M.
    Brown, L.
    Sánchez, F.
    Wilking, M. J.
    Klekotko, A.
    Gousy-Leblanc, V.
    Lezaun, V.
    McElwee, J.
    Choi, J. H.
    O'Sullivan, L.
    Mitra, A.
    Takeda, A.
    Thompson, L. F.
    Tanaka, H. A.
    Mijakowski, P.
    Kim, J. Y.
    Paolone, V.
    Sekiya, H.
    Nova, F.
    Seiya, Y.
    Mine, S.
    Shan, Z.
    Nakano, Y.
    Katori, T.
    Barbi, M.
    Marzec, J.
    Rose, H. J.
    Posiadala-Zezula, M.
    McCauley, N.
    Wascko, M. O.
    Oshlianskyi, A.
    Nugent, J. C.
    Martens, K.
    Nunokawa, H.
    Svirida, D.
    Hultqvist, K.
    Shaikhiev, A.
    Devi, M. M.
    Vladisavljevic, T.
    Tashiro, T.
    Toledo, J.
    Vogelaar, R. B.
    Izumiyama, S.
    Valder, S.
    Opis:
    Core-collapse supernovae are among the most magnificent events in the observable universe. They produce many of the chemical elements necessary for life to exist and their remnants—neutron stars and black holes—are interesting astrophysical objects in their own right. However, despite millennia of observations and almost a century of astrophysical study, the explosion mechanism of core-collapse supernovae is not yet well understood. Hyper-Kamiokande is a next-generation neutrino detector that will be able to observe the neutrino flux from the next galactic core-collapse supernova in unprecedented detail. We focus on the first 500 ms of the neutrino burst, corresponding to the accretion phase, and use a newly-developed, high-precision supernova event generator to simulate Hyper-Kamiokande's response to five different supernova models. We show that Hyper-Kamiokande will be able to distinguish between these models with high accuracy for a supernova at a distance of up to 100 kpc. Once the next galactic supernova happens, this ability will be a powerful tool for guiding simulations toward a precise reproduction of the explosion mechanism observed in nature.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    Tytuł:
    A Study On The Metal Carbide Composite Diffusion Bonding For Mechanical Seal
    Badanie łączenia dyfuzyjnego kompozytu metal węglik na mechaniczne uszczelnienie
    Autorzy:
    Kim, D.-K.
    Shon, I.-J.
    Song, J.
    Ryu, W.-J.
    Shin, H.-Ch.
    Kwon, E.-Y.
    Shin, H.
    Kang, S.-J.
    Tematy:
    diffusion bonding
    nanostructures
    mechanical seal
    hard metal
    mechanical properties
    łączenie
    nanostruktura
    uszczelnienie mechaniczne
    twardy metal
    właściwości mechaniczne
    Pokaż więcej
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Powiązania:
    https://bibliotekanauki.pl/articles/356399.pdf  Link otwiera się w nowym oknie
    Opis:
    Mechanical Seal use highly efficient alternative water having a great quantity of an aqueous solution and has an advantage no corrosion brine. Metal Carbide composites have been investigated as potential materials for high temperature structural applications and for application in the processing industry. The existing Mechanical seal material is a highly expensive carbide alloy, and it is difficult to take a price advantage. Therefore the study of replacing body area with inexpensive steel material excluding O-ring and contact area which demands high characteristics is needed. The development of WC-Ni base carbide alloy optimal bonding composition technique was accomplished in this study. To check out the influence of bonding temperature and time, bonding characteristics of sintering temperature was experimented. The bonding statuses of this test specimen were excellent. The hardness of specimen and bonding rate were measured using ultrasound equipment. In this work, Powder of WC (involved VC, Cr), Co and Mo2C mixed by attrition milling for 24hours. Nanostructured WC-27.6wt.%Ni-1.5wt.%Si-0.11wt.%VC-1.1wt.%B4C composite were fabricated at 1190°C by high temperature vacuum furnace. To check out the influence of bonding temperature and time, bonding characteristics of sintering temperature was experimented. Its relative density was about 99.7%. The mechanical properties (hardness and fracture toughness) were 87.2 HRA and 4.2 M·Pam1/2, respectively. The bonding status of this test specimen was excellent and the thickness of bonding layer was 20 ~30§ at 1050 and 1060°C bonding temperature.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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