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International Conference on computer Vision Theory and Applications (VISAPP)

作者： Hakaru Tamukoh Noriaki Suetake Hideaki Kawano Ryosuke Kubota Byungki Cha Takashi Aso Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology Kyushu Japan Graduate School of Science and Engineering Yamaguchi Universitv Yamaguchi Japan Graduate School of Engineering Kyushu Institute of Technology Kyushu Japan Department of Intelligent System Engineering Ube National College of Technology Ube Japan Faculty of Management and Information Sciences Kyushu Institute of Information Sciences Kyushu Japan

ISBN: (纸本)9781479976867

This paper proposes a fuzzy-rule-embedded reduction image construction method for image enlargement. A fuzzy rule is generated by considering distribution of pixel value around a target pixel. The generated rule is embedded into the target pixel in a reduction image. The embedded fuzzy rule is used in a fuzzy inference to generate a highly magnified image from the reduction image. Experimental results, which scale factors are three and four, show that the proposed method realizes high-quality image enlargement in terms of both objective and subjective evaluations in comparison with conventional methods.

关键词： Interpolation Fuzzy logic Measurement uncertainty Image edge detection Image color analysis Image resolution TV

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G′ band in double- and triple-walled carbon nanotubes: A Raman study

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Physical Review B 2015年第7期91卷 075402-075402页

作者： Thomas Ch. Hirschmann Mildred S. Dresselhaus Hiroyuki Muramatsu Max Seifert Ursula Wurstbauer Eric Parzinger Kornelius Nielsch Yoong Ahm Kim Paulo T. Araujo Institute of Applied Physics University of Hamburg Jungiusstrasse 11 20355 Hamburg Germany Department of Electrical Engineering and Computer Science Cambridge Massachusetts 02139-4307 USA Department of Physics Massachusetts Institute of Technology Cambridge Massachusetts 02139-4307 USA Faculty of Engineering Shinshu University 4-17-1 Wakasato Nagano 380-8553 Japan Walter Schottky Institut and Physik Department Technische Universität München 85748 Garching Germany Polymer and Fiber System Engineering Chonnam National University 77 Yongbong-ro buk-gu Gwangju 500-757 Korea Department of Physics and Astronomy University of Alabama Tuscaloosa Alabama 35401 USA

Double- and triple-walled carbon nanotubes are studied in detail by laser energy-dependent Raman spectroscopy in order to get a deeper understanding about the second-order G′ band Raman process, general nanotube properties, such as electronic and vibrational properties, and the growth method itself. In this work, the inner nanotubes from the double- and triple-walled carbon nanotubes are produced through the encapsulation of fullerene peapods with high-temperature thermal treatments. We find that the spectral features of the G′ band, such as the intensity, frequency, linewidth, and line shape are highly sensitive to the annealing temperature variations. We also discuss the triple-peak structure of the G′ band observed in an individual triple-walled carbon nanotube taken at several laser energies connecting its Raman spectra with that for the G′ band spectra obtained for bundled triple-walled carbon nanotubes.

关键词： CARBON nanotubes RAMAN spectroscopy ANNEALING of metals TEMPERATURE effect ELECTRIC fields

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Initial values entering into an element zero with period one for logistic maps over integers

Initial values entering into an element zero with period one...

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International Symposium on Information Theory and Its Applications, ISITA

作者： Shunsuke Araki Ken'ichi Kakizaki Takeru Miyazaki Satoshi Uehara Faculty of Computer Science Kyushu Institute of Technology Iizuka Fukuoka Japan Faculty of Environmental Engineering University of Kitakyushu Kitakyushu Fukuoka Japan

In the presented paper, we consider initial values entering into an element `zero' with period one for logistic maps over integers. First, we derive the logistic map over integers. Second, we describe that only two elements, namely zero and the maximum value in domain of the logistic map, enter into the loop with zero, respectively, for control parameters less than 4. Last, we show that three elements, zero, the maximum value and its half value, always enter into zero for the control parameter equals to 4, and we indicate experimentally that an event that these three initial values only entering into zero has a probability of about two-thirds for any precision. In conclusion, we will obtain a result that the probability that we choose initial values entering into the loop with zero is negligible, if we select a suitable precision for the logistic map over integers by a simple check.

关键词： Logistics Generators Trajectory Australia Equations computers Cryptography

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Robust walking of biped robot on uneven terrain using effect of wobbling mass

Robust walking of biped robot on uneven terrain using effect...

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IEEE International Conference on Robotics and Biomimetics

作者： Terumitsu Hayashi Masaki Yamakita Yuta Hanazawa Fumihiko Asano Dept. of Mechanical and Control Engineering Tokyo Institute of Technology Meguro-ku Tokyo JAPAN Faculty of Engineering Department of Applied Science for Integrated System Engineering Kyushu Institute of Technology Kita-Kyushu Fukuoka Japan School of Information Science Japan Advanced Institute of Science and Technology Nomi Ishikawa JAPAN

ISBN: (纸本)9781479973989

Many studies about improving the performance of biped robots, especially energy efficiency and waking speed have been done. These properties, however, are secondary to the robot ability to prevent falling down on irregular grounds. In this paper, we propose a novel method which uses an active up-and-down wobbling mass to improve walking ability and robustness of biped robot on uneven terrain. We will show improvements that the number of walk steps is increased in numerical simulations using the proposed method. We also evaluate quantitatively walking ability of biped robot on uneven terrain using a performance measure called Gait Sensitivity Norm (GSN) and H ∞ norm. Furthermore, we show the effectiveness of H ∞ norm measure which cannot be evaluated by GSN in a walking example.

关键词： Legged locomotion Limit-cycles Trajectory Robustness Mathematical model Sensitivity

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Very high throughput WLAN system for ultra HD 4K video streaming

Very high throughput WLAN system for ultra HD 4K video strea...

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International Conference on Information technology, computer and Electrical engineering (ICITACEE)

作者： Wahyul Amien Syafei Masayuki Kurosaki Hiroshi Ochi Faculty of Engineering Diponegoro University Semarang Indonesia Department of Computer Science and Electronics Kyushu Institute of Technology Iizuka Fukuoka Japan

We have been developing a very high throughput WLAN system based on IEEE802.11ac's criteria. It combines MIMO and OFDM technology to provide throughput over 1 Gbps for 150 feet propagation distance by using 80 MHz of bandiwdth on 5 GHz frequency band. 4 by 5 antennas MIMO is set to get 2 nd -order diversity gain to maintain high throughput and performance. Greenfield preamble with novel phase rotation is employed to mitigate the overhead problem while reducing the peak to average power ratio of the signals. Run test to broadcast the ultra high definition video which resolution 4096 × 1714 pixels/frame with 30 frame/second under in-door channel model demonstrates an excellent performance of the developed system.

关键词： Wireless LAN Transmitters OFDM High definition video Receivers Timing Silicon carbide

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Some properties of the maximum period on the logistic map over Z2n

Some properties of the maximum period on the logistic map ov...

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International Symposium on Information Theory and Its Applications, ISITA

作者： Kyohei Yoshida Takeru Miyazaki Satoshi Uehara Shunsuke Araki Faculty of Environmental Engineering University of Kitakyushu Kitakyushu City Fukuoka Japan Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Kitakyushu City Fukuoka Japan

In this paper, we propose the logistic map over Z 2n . We describe conjectures, and some statistical properties for the logistic map over Z 2n . We also conjecture that the control parameters will change the behavior ... 详细信息

关键词： Logistics Australia Generators Accuracy Cities and towns Time measurement Cryptography

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Spatiotemporal Human Brain Activities on Recalling Body Parts

Spatiotemporal Human Brain Activities on Recalling Body Part...

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IEEE International Conference on Fuzzy systems

作者： Takahiro Yamanoi Yoshinori Tanaka Mika Otsuki Hisashi Toyoshima Toshimasa Yamazaki Graduate School of Engineering Hokkai Gakuen University Japan Technical Software Faculty of Health Sciences Hokkaido University Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology

ISBN: (纸本)9781479920747

The authors measured electroencephalograms (EEGs) from subjects looking at line drawings of body parts and recalling their names silently. The equivalent current dipole source localization (ECDL) method is applied to the event related potentials (ERPs): summed EEGs. ECDs are localized to the primary visual area V1, to the ventral pathway (ITG: Inferior Temporal Gyrus), to the parahippocampus (ParaHip), the right angular gyrus (AnG), to the right supramarginal gyrus (SMG) and to the Wernike's area. Then ECDs are localized to the Broca's area, to the postcentral gyrus (PstCG) and to the fusiform gyrus (FuG), and again to the Broca's area. These areas are related to the integrated process of visual recognition of pictures and the retrieval of words. Some of these areas are also related to image recognition and word generation. And process of search and preservation in the memory is done from the result of some ECDs to the paraHip.

关键词： Visualization Electroencephalography Manganese Educational institutions Electric potential Electrodes Brain

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A Study on User Activity Patterns in the Wireless Network

A Study on User Activity Patterns in the Wireless Network

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2012 2nd International Conference on Advanced Materials and Information technology Processing(AMITP 2012)

作者： ChunXia Yang HongFa Wu Masaru Itoh Tao Zhou Institute of Information and System Science Nanjing University of Information Science and Technology Faculty of Information Science Aichi Institute of Technology1247 Yachikusa Yakusa-cho Toyota School of Computer Science and Engineering University of Electronic Science and Technology of China

Wireless local network traces have become an important source of information regarding user activity patterns in the wireless *** on the traces at the University of Southern California,this study investigates the temporal statistics of inter-arrival time denoting a time interval between two consecutive arrivals at a access point for a *** are the found results that the distribution function of inter-arrival time takes on various forms including exponential form,heavy tail type where the tail can be well fitted by a power-law decaying function and wide power-law form which spans in a wide scale range from several seconds to two days or *** the results indicate that there don’t exist potential,statistically identical arrivals and that simulating network traffic cannot be done with Poisson models.

关键词： Wireless Network User Activity Pattern Inter-Arrival Time Power-Law Distribution

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Reconsideration of rules in tables with non-deterministic data

Reconsideration of rules in tables with non-deterministic da...

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IEEE International Conference on Granular Computing (GRC)

作者： Hiroshi Sakai Mao Wu Naoto Yamaguchi Chenxi Liu Michinori Nakata Department of Applied Science for Integrated System Engineering Kyushu Institute of Technology Tobata Kitakyushu Japan Faculty of Management and Information Science Josai International University Togane Chiba Japan

This paper briefly surveys rough set-based framework RNIA (Rough Non-deterministic Information Analysis), which can handle tables with non-deterministic data. Each rough set-based concept in the standard tables is redefined based on the possible world semantics. Especially, in rule generation, we reconsider the definition of rules, because the standard definition of rule generation cannot be applicable to defining rules in RNIA. In this paper, we describe the new framework for handling rules in RNIA, which gives us new rule-based table data analysis.

关键词： Rough sets Information systems Data mining Software tools Software algorithms Accuracy Information analysis

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A study of an automorphism on the logistic maps over prime fields

A study of an automorphism on the logistic maps over prime f...

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International Symposium on Information Theory and Its Applications, ISITA

作者： Takeru Miyazaki Shunsuke Araki Satoshi Uehara Yasuyuki Nogami Faculty of Environmental Engineering University of Kitakyushu Kitakyushu City Fukuoka Japan Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Iizuka City Fukuoka Japan Faculty of Engineering Okayama University Okayama Japan

In this paper, we propose a logistic map over prime fields, which is one way to implement the logistic map over real domain into a computer. We describe a definition and some properties for the logistic map over prime fields, and prove an automorphism between two maps with different control values. We also discuss both advantages and disadvantages of the existence for the automorphism, and an aptitude for the map used by the pseudorandom number generators.

关键词： Logistics Equations Generators Australia Trajectory Information theory Cities and towns

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