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    KUWAMURA Hitoshi

    … Each specimen's initial crookedness was measured as in Fig. 3, whose shapes are compared with cosine curves utilized in theoretical analysis.</p><p> The experimental results are shown in the left-hand sides of Figs. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (762), 1115-1121, 2019-08


  • Further validity test of the SL Theory::A proposition for omnibus test by using cosine curve  [in Japanese]

    Inuzuka Atsushi

    … To address the issue, an omnibus testby using the cosign curve was proposed. …

    Japanese Journal of Administrative Science 31(1-2), 17-32, 2019


  • Perceptual Encryption Based on Features of Interpolating Curve for Vector Map

    PHAM Ngoc-Giao , LEE Suk-Hwan , KWON Ki-Ryong

    … Polyline data of vector maps are extracted to interpolate a spline curve, which is represented by an interpolating vector, the curvature degree coefficients, and control points. … The proposed algorithm is based on encrypting the control points of the spline curve in the frequency domain of discrete cosine transform. … Control points are transformed and selectively encrypted in the frequency domain of discrete cosine transform. …

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E100.A(5), 1156-1164, 2017


  • Study on phase shifted fiber Bragg grating spatial sensing properties to ultrasonic wave at arbitrary excitation angle

    Lijun Meng , Jiangang Yi , Xin Tan , Li Cai

    … under the effect of the ultrasonic wave from random angle, the PS-FBG signal intensity and the ultrasonic excitation angle presented a Cosine curve with two peaks in the middle. …

    IEICE Electronics Express 14(8), 20170259-20170259, 2017


  • On θ-congruent numbers on real quadratic number fields

    Janfada Ali S. , Salami Sajad

    … has rational cosine, say cos(θ) = <i>s/r</i> … Consider the (<b>K</b>,θ)-congruent number elliptic curve <i>E</i><sub><i>n</i>,θ</sub>: <i>y</i><sup>2</sup> …

    Kodai Mathematical Journal 38(2), 352-364, 2015


  • Adhesion and Friction Force on Various Smooth Hydrophobic Silane Coatings

    Miyamoto Takumi , Sakai Munetoshi , Isobe Toshihiro , Matsushita Sachiko , Nakajima Akira

    … Then adhesion and friction force for these coatings were evaluated using force curve measurements and friction force microscopy with Si<sub>3</sub>N<sub>4</sub>-coated Si cantilevers in the ambient atmosphere. … The adhesion force depended on the cosine of the water contact angle, which suggests that it was governed by the capillary force. …

    Chemistry Letters 44(5), 683-684, 2015



    Rowinski Marcin Karol , White Prof Timothy John , Zhao Dr Jiyun

    … Hence, it is possible to simulate how the flow behaves from the beginning of cycle (BOC) when the shape of the curve is a cosine distributed to the end of cycle (EOC) moment when the peaking factor is skewed to the bottom of the fuel element. …

    The Proceedings of the International Conference on Nuclear Engineering (ICONE) 2015.23(0), _ICONE23-1-_ICONE23-1, 2015


  • Spice-Oriented Algorithm for Peak Search and Stability Assessment for Frequency Response

    KATAOKA Hiroshige , YAMAGAMI Yoshihiro , NISHIO Yoshifumi , USHIDA Akio

    … We obtain the frequency response by using the sine-cosine circuit, Fourier transformation circuit and solution tracing-curve circuit, which have been developed in our previous studies. …

    IEEJ Transactions on Electronics, Information and Systems 131(3), 543-550, 2011-03-01

    J-STAGE  References (11)

  • Application of the Method to Predict Sewn Shapes Using Polyhedrons to the Shape with a Sewn Outline in a Three-dimensional Form with Constant Angles of Torsion  [in Japanese]

    ITOH Miori , IMAOKA Haruki

    … The ideal standing angle in this method is the angle corresponding to the angle between a curvature vector and a tangent vector on a point of a three-dimensional curve of a surface in the theory of developable surfaces.</p><br><p>Finally, for a sewn outline in a three-dimensional form with constant angles of torsion, there were also two standing angles on the first side of which the length of generating lines are the longest. …


    J-STAGE  Cited by (1)

  • Aerodynamic characteristics of a concentrator photovoltaic system  [in Japanese]

    Yamaguchi Yasuyuki , Miyazono Shingo , Ozono Shigehira

    … However, as the angles increase, separated shear layers reattach on the rear surface of the panel, and some deviations appear from the sine or cosine curve of the aerodynamic coefficients. …

    Memoirs of the Faculty of Engineering, University of Miyazaki (39), 1-7, 2010


  • 20606 Analysis of Impact Vibration in Cantilever Beam System  [in Japanese]

    AOKI Shigeru , SAKAI Yasunori

    … This paper deals with impact vibration in beam system excited by periodic displacement with cosine function. …

    The Proceedings of Conference of Kanto Branch 2009.15(0), 293-294, 2009


  • An Effective Hough Transform Based on a Cosine-three-term-recurrence  [in Japanese]

    沼田宗敏 , 輿水 大和

    … From this view point Koshimizu proposed the Fast Incremental Hough transform 2 (FIHT2) previously, and FIHT2 generates one point of a sinusoidal Hough curve on ρ-θ … Though FIHT2 is basically a method for approximating a Hough curve one by one calculation by using an alliance recurrence formula, unfortunately in FIHT2 the deviation between the approximated and true Hough curves becomes large. …

    情報処理学会論文誌 49(12), 4049-4055, 2008-12-15


  • On a New Dissimilarity of Projection Correlation

    ENDO Yasunori , UCHIDA Fuyuki , HAMASUNA Yukihiro

    IEICE Proceeding Series (42), A1L-E1, 2008


  • The sound reproduction technique based on the acoustic model : Can mechanical noise be identified exactly in the brain?  [in Japanese]

    YOSHIDA Hideki , KAKUI Kenji , MAEDA Yasunari , FUJIWARA Yoshitaka

    … Both the subjective scores and the sum squared error of the reconstructed sound have ascertained the hypothesis, in which the monotonous curve between the two successive extrema was not perceptible. … Although the sinusoidal interpolation between the two successive extrema of the speech and musical data is better than the other four reconstruction techniques by using the linear function, the sigmoid, the cosine cubed and the cosine to the 0.3^<rd> …

    Journal of Biomedical Fuzzy Systems Association 10(2), 133-141, 2008

    J-STAGE  References (17) Cited by (5)

  • An Eight-Leg Walking Robot Using SMA Wires as Actuators  [in Japanese]

    UCHIDA Norio , MITA Toshihiro

    … As an SMA wire pulls the leg in the horizontal direction and another wire pulls the leg in the vertical direction, the leg moves in an elliptical orbit by sending the wires sine- and cosine-curve electric currents. …

    Journal of the Japan Society for Precision Engineering 73(1), 156-160, 2007-01-05

    J-STAGE  References (12) Cited by (1)

  • New Expression Method for Tear Toughness of Cast and Die-cast Aluminum Alloys

    Kumai Shinji , Mukaiyama Akira

    … The second half of the load-displacement curve after the peak load (stress) is curve-fitted by a cosine curve. … are defined as a doubled amplitude value and half of the wave length of the cosine curve, respectively. …

    Journal of Japan Foundry Engineering Society 79(11), 671-675, 2007


  • What Is Rhythm? Can We Capture Syllable Shapes From Intensity Contours?

    KOMATSU Masahiko , ARAI Takayuki

    … It tests two algorithms adopted in our previous studies, which estimate syllable centers from intensity contours based on the calculation of RMS and correlation with a cosine curve. …

    IEICE technical report 105(685), 121-126, 2006-03-27

    References (10)

  • Analysis of Reactance Oscillators Having Multi-Mode Oscillations

    YAMAGAMI Yoshihiro , NISHIO Yoshifumi , USHIDA Akio

    … In our analysis, the determining equations from the harmonic balance method are given by modified equivalent circuit models of "DC," "Cosine" and "Sine" circuits. … The modified circuits can be solved by a simulator STC (solution curve tracing circuit), where the multiple oscillations are found by the transient analysis of Spice. …

    IEICE Trans. Fundamentals, A 89(3), 764-771, 2006-03-01

    References (15) Cited by (1)

  • Diurnal Changes in Salivary Melatonin Concentrations and ERP in Response to Sound Stimuli in Morning-Type and Evening-Type Subjects

    Huang Jinghua , Katsuura Tetsuo , Shimomura Yoshihiro , Iwanaga Koichi

    … The melatonin rhythm was estimated by cosine-fitting curve of saliva melatonin concentration. …

    Journal of the Human-Environment System 9(1), 7-12, 2006



    SHIBATA Michio

    … Sophiscated ultimate strength theory is introduced, where the deflection curve is assumued as a part of cosine wave and the critical state is estimatede as the arrival of the most outer fiber strain at the limit strain of the plain concrete. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) 69(586), 235-241, 2004

    J-STAGE  AIJ  References (30)

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