Search Results 1-20 of 188

  • Curling of Sheet in Asymmetric Rolling Investigated by Profile Measurement of Partly Rolled Sheet

    Li Ling , Matsumoto Ryo , Utsunomiya Hiroshi

    … The contact lengths on both upper and lower surfaces <i>L</i><sub>U</sub> … It is found that the ratio of contact length <i>L</i><sub>L</sub>/<i>L</i><sub>U</sub> …

    ISIJ International 59(3), 489-495, 2019

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  • STUDY ON EFFECTIVENESS OF DOG-OWNERS AS “THE EYES IN THE COMMUNITY”:-A case of cognitive map in Seya-ku, Yokohama-shi-  [in Japanese]

    SERIZAWA Masae , SOBU Hiroyuki , KITAHARA Toshio

    … In addition, we asked dog-owners to mark his/her daily walking courses with dog and also places where he/she have make contact with others on the sketch map.<br> Although there is no significant difference between total lengths of paths drawn by the two groups, an range of paths drawn by dog-owners extends beyond major roads recognized as edges of the area. …

    Journal of Architecture and Planning (Transactions of AIJ) (750), 1477-1486, 2018-08

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  • Experimental Study of Roll Flattening in Cold Rolling Process

    Li Ling , Matsumoto Ryo , Utsunomiya Hiroshi

    … In addition, the contact length <i>L</i><sub>M</sub> …

    ISIJ International 58(4), 714-720, 2018

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  • Discharge pattern discrimination in vacuum interrupter with non-contact measurement of shield potential

    Kong Fei , Kojima Hiroki , Hayakawa Naoki , Kimura Toshinori , Tsukima Mitsuru

    … From the analysis of the measured waveforms, we can estimate the discharge patterns and discharge path lengths. … In this paper, a non-contact shield potential measurement was proposed when the shield potential cannot be measured directly. …

    IEEE Transactions on Dielectrics and Electrical Insulation 24(5), 3265-3269, 2017-11-27

    IR 

  • Morphological evolution of microscopic dewetting droplets with slip

    Chan Tak Shing , McGraw Joshua D. , Salez Thomas , Seemann Ralf , Brinkmann Martin

    … <Abstract 1>We investigate the dewetting of a droplet on a smooth horizontal solid surface for different slip lengths and equilibrium contact angles. … Specifically, we solve for the axisymmetric Stokes flow using the boundary element method with (i) the Navier-slip boundary condition at the solid/liquid boundary and (ii) a time-independent equilibrium contact angle at the contact line. …

    Journal of Fluid Mechanics (828), 271-288, 2017-09-04

    IR 

  • Investigating the performance of seals using photoelastic experimental hybrid method and finite element analysis

    MOSE Bruno R. , SHIN Dong-Kil , SHIN Dong-Chul

    … Further, for each loading condition, contact stresses were greater than the applied hydraulic pressures. … Contrary to previous studies, contact stresses were found to possess a non Hertzian profile. … By measuring contact lengths using a video microscope, the seal with new geometry recorded higher contact lengths compared with seals having circular profile. …

    Journal of Advanced Mechanical Design, Systems, and Manufacturing 11(2), JAMDSM0016-JAMDSM0016, 2017

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  • Dynamic Fracture Patterns Formed in Transparent Ice Spheres by Impact Loading  [in Japanese]

    UENISHI Koji , YOSHIDA Tomoya , SAKAGUCHI Shintaro , SUZUKI Kojiro

    … By comparing the experimental observations with the numerically generated dynamic wave fields, we have also suggested that for the generation of "top"-type fracture pattern, surface waves of relatively short lengths play a crucial part while wider stressed areas expanding along the central axis of the sphere due to a longer contact time may produce the "orange segments"-type pattern. …

    The Proceedings of the Materials and Mechanics Conference 2017(0), GS1007, 2017

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  • Non-contact absolute internal distance measurement between two mirrors by using a low-coherence tandem interferometer (3rd Report):Uncertainty budget  [in Japanese]

    Winarno Agustinus , Masuda Shusei , Matsumoto Hirokazu , Takahashi Satoru , Takamasu Kiyoshi , Kitayama Takao , Kudo Ryota , Endo Katsuyoshi

    … Hence, the uncertainty due to the correction value which is difference value between the refractive index of air and beam splitter that causes a length difference between mechanical and optical lengths is estimated. …

    Proceedings of JSPE Semestrial Meeting 2017S(0), 265-266, 2017

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  • Dependence of Thermal Contact Properties on Compression Pressure

    Shen Hua , Jiang Shaochen , Sukigara Sachiko

    … This suggests that when artificial fur is touched with a higher force, the contact feeling may be cooler than that when the fur is touched gently. … For short pile lengths, <i>UT</i><sub>max</sub> … For long pile lengths, <i>UT</i><sub>max</sub> …

    Journal of Fiber Science and Technology 73(8), 177-181, 2017

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  • Experimental and Numerical Investigation of Contact Doping Effects in Dinaphthothienothiophene Thin-Film Transistors  [in Japanese]

    Yamamoto Ryo , Noda Kei , Wada Yasuo , Toyabe Toru

    … <p>Contact doping effects in p-channel dinaphthothienothiophene (DNTT) thin-film transistors with a bottom-gate, top-contact configuration were investigated with both experimental and numerical approach. …

    IEEJ Transactions on Electronics, Information and Systems 137(1), 20-25, 2017

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  • Electronic transport properties of graphene channel with metal electrodes or insulating substrates in 10 nm-scale devices

    Jippo H. , Ozaki T. , Okada S. , Ohfuchi M. , 岡田 晋

    … The current densities through the AGNR-Ti contact are about 10 times greater than those through the AGNR-Au contact, even though the AGNR width reaches 12 nm. … For the insulating substrates, we have investigated the dependence of the channel length on the transport properties using models with two channel lengths of 15.1 and 9.91 nm. …

    Journal of applied physics 120(15), 154301, 2016-10

    IR 

  • Seating System with Adjustable Sheet and Body Surface Measurement

    Kikuchi Takehito , Abe Isao

    … In addition, a way of using a Microsoft Kinect sensor to measure lengths is also developed and utilized to adjust the seating system. … The proposed method successfully averages pressure on the model and also adjusts his posture, simultaneously reducing pressure and increasing the contact area of the back.</p> …

    Journal of Robotics and Mechatronics 28(1), 79-85, 2016

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  • Suppression of Contact Force Fluctuation of Pantograph Using Active Control:(In the Presence of Changes in Speed and Span Length)  [in Japanese]

    YAMASHITA Yoshitaka , KOBAYASHI Shigeyuki , USUDA Takayuki , MASUDA Arata

    … <p>The authors have been working on the development of an active control pantograph which aims to reduce the contact force fluctuation between catenaries and a pantograph in order to improve the current collection performance for a higher speed operation. … This means that the active control pantograph aims at the reduction of the contact force fluctuation at the target frequency. …

    The Proceedings of the Dynamics & Design Conference 2016(0), 427, 2016

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  • Active Control of Contact Force of Pantograph Using the Catenary Installation Information with Errors  [in Japanese]

    YAMASHITA Yoshitaka , KOBAYASHI Shigeyuki , USUDA Takayuki

    … <p>The authors have been tackled on the development of an active control pantograph which aims at reduction of contact force and proposed a control method that gives the sinusoidal actuation force to the pantograph. … The frequency of the actuation force is set to be one of the dominant frequency due to the structural periodicity of catenary, and the amplitude and the phase of the actuation force is automatically regulated so as to reduce the contact force fluctuation with this frequency component. …

    The Proceedings of Mechanical Engineering Congress, Japan 2016(0), G1000606, 2016

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  • Waveform Comparison and Difference Factors in Discharge Currents for Air Discharges from Different ESD Generators  [in Japanese]

    Taka Yoshinori , Ishida Takeshi , Fujiwara Osamu

    … <p>Electrostatic discharge (ESD) generators must be calibrated for contact discharges with the current waveform specified in IEC61000-4-2; … In this study, two types of different ESD generators were used to measure discharge currents both for contact and air discharges with respect to charge voltages from 2 kV to 8 kV under the same conditions of experimental environment. …

    IEEJ Transactions on Fundamentals and Materials 136(10), 649-656, 2016

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  • Non-contact absolute internal distance measurement between two mirrors by using a low-coherence tandem interferometer (2st Report):Evaluation of the length compensation value due to difference of group refractive index  [in Japanese]

    Winarno Agustinus , Masuda Shusei , Matsumoto Hirokazu , Takahashi Satoru , Takamasu Kiyoshi , Kitayama Takao , Kudo Ryota , Endo Katsuyoshi

    … The difference of group refractive index between air and beam splitter causes a length difference between mechanical and optical lengths. …

    Proceedings of JSPE Semestrial Meeting 2016A(0), 417-418, 2016

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  • BASIC STUDY ON BEHAVIOR OF COMPOSITE BEAM SUBJECTED TO DOUBLE CURVATURE BENDING  [in Japanese]

    MATSUDA Yoriyuki , KASAI Kazuhiko , SAKAI Shinkichi , MOTOYUI Shojiro

    … The lengths and moment magnitudes of the two portions are different due to the composite action and increased bending stiffness caused by positive bending. … Both models simulate slip between the concrete slab and steel beam, bending of stud connectors, compression and tension failure of concrete slab, contact and separation between the slab and beam end, and yielding of the steel beam. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) 81(722), 791-801, 2016

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  • Development of Gait Analysis System Based on Continuous Plantar Images Obtained Using CaTTaP Device

    Iijima Yuka , Shiina Takayuki , Ishikawa Takumi , Takemura Hiroshi , Mizoguchi Hiroshi

    … A total of 302 step lengths and widths were calculated from the image data, and the accuracy of the results were estimated by comparing with measurements obtained simultaneously using a motion capture system. … In the higher accuracy group, step length and width were estimated with absolute differences of approximately 16.1 mm and 31.2 mm, respectively, and the entire sole was stably and steadily in ground contact from the heel to the toe. …

    Advanced Biomedical Engineering 4(0), 119-125, 2015

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  • 0329 Foam measurement via the single-tip optical fiber probe with surface treatment  [in Japanese]

    NIHEI Ayumi , SAITO Takayuki

    … A problem is that foam cells are broken by contact of the S-TOP. … Based on these results, we established a new measurement system to measure foam-cell chord lengths. …

    The Proceedings of the Fluids engineering conference 2015(0), _0329-1_-_0329-2_, 2015

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  • Temporal-Coherence Interferometer Using Optical Comb for CMM Verification (1st Report):Pulsed interferometer with a rough metal ball target  [in Japanese]

    SUDATHAM Wiroj , MATSUMOTO Hirokazu , TAKAHASH Satoru , TAKAMASU Kiyoshi

    … The pulse interference fringes are generated at each several tens centimeters and then compact absolute position-measuring system is realized for practical non-contact use with a high accuracy measurement. … The average standard deviation of distance/length measurement is about 0.6 μm for the lengths up to 1.5 m. …

    Proceedings of JSPE Semestrial Meeting 2014A(0), 843-844, 2014

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