Search Results 1-15 of 15

  • CONSTRUCTION OF SLOWLY INCREASING FUNCTIONS

    Ando Hiroshi , Horiuchi Toshio , Nakai Eiichi

    We construct a continuous and bijective function L : (0,∞) → (−∞,∞)which is increasing slower than any nth iterate of logarithmic function. Further, weconstruct a function which is increasing slower t …

    Scientiae Mathematicae Japonicae 75(2), 187-201, 2012

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  • Higher Degree Traces for Rational Point Groups of Non Symmetric Ordinary Pairings  [in Japanese]

    NOGAMI Yasuyuki , TAKEUCHI Shoichi , MATSUSHIMA Tomoko , UEHARA Satoshi , MORIKAWA Yoshitaka

    … A part of its security is based on elliptic curve discrete logarithm problem (ECDLP). … This research especially deals with non super-singular subfield elliptic curves. …

    IEICE technical report 110(337), 1-8, 2010-12-08

    References (22)

  • Gamma Modeling of Speech Power and Its On-Line Estimation for Statistical Speech Enhancement

    DAT Tran Huy , TAKEDA Kazuya , ITAKURA Fumitada

    … This model is a super-set of the conventional Gaussian model of the complex spectrum and provides more accurate prior modeling when the optimal parameters are estimated. … Next, we derive and investigate the minimum mean square error (MMSE) and maximum a posterior probability (MAP) estimations in different domains of speech spectral magnitude, generalized power and its logarithm, using the proposed gamma modeling. …

    IEICE transactions on information and systems E89-D(3), 1040-1049, 2006-03-01

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  • Applicability of an Exponential Law in Creep of Metals

    TAMURA Manabu , ESAKA Hisao , SHINOZUKA Kei

    … The applicability of the new creep equation was examined for a pure iron, two kinds of Ni-base super alloys and an eutectic solder alloy in a Pb–Sn system which were tested at relatively high temperatures and under very low stresses. … The new creep equation is valid for stresses higher than the half value of the slope in a logarithm of time to rupture vs. linear stress diagram. …

    MATERIALS TRANSACTIONS 44(1), 118-126, 2003-01-01

    J-STAGE  References (48) Cited by (1)

  • Improved Time-of-Flight Technique for Measuring Carrier Mobility in Thin Films of Organic Electroluminescent Materials

    CHEN Baijun , LEE Chun-sing , LEE Shuit-tong , WEBB Patrick , CHAN Yan-cheong , GAMBLING William , TIAN He , ZHU Weihong

    … The logarithm of the drift mobility changed linearly with the square root of the applied electric field. …

    Japanese Journal of Applied Physics 39(3), 1190-1192, 2000-03-01

    J-STAGE  References (15) Cited by (1)

  • Two Discrete Log Algorithms for Super-Anomalous Elliptic Curves and Their Applications

    KUNIHIRO Noboru , KOYAMA Kenji

    Super-anomalous elliptic curves over a ring Z / nZ(n=Π^k_<i=1>pi^<ei>)are defined by extending anomalous elliptic curves over a prime filed F_p.They have n points over a ring Z / nZ and pi points over F_<pi> …

    IEICE Trans. Fundamentals 83(1), 10-16, 2000-01-25

    References (13) Cited by (1)

  • Polynomial time Algorithm for Discrete Logarithm Problem over Super-Anomalous Elliptic Curves

    KUNIHIRO Noboru , KOYAMA Kenji

    … First, we introduce "super-anomalous elliptic curves." Super-anomalous elliptic curves, defined over the ring Z/nZ(n=Π^k_<i=1>p_i), have n points and have p_i points over F_<p_i> … Recently, efficient algorithms were proposed for solving a discrete logarithm problem over anomalous elliptic curves [5][6][7]. …

    Technical report of IEICE. ISEC 98(268), 9-15, 1998-09-17

    References (7)

  • Solid Electrolyte NOx Sensor Using Pyrochlore -Type Oxide Electrode

    Shimizu Youichi , Maeda Koji

    … Solid electrolyte electrochemical devices based on sodium super-ionicconductor (NASICON: Na1+xZr2SixP3-xO12) and pyrochlore-type oxide(Pb2M2O7-y : M= Ir, Ru1-xPbx; … x=0 - 0.75) electrodes were found to exhibitgood performance for the potentiometric sensing of NO as well as NO2 at 400°C.The EMF responses were almost linear to the logarithm of NO or NO2concentration. …

    Sensors and Actuators B: Chemical 52(1-2), 84-89, 1998-09

    IR  Cited by (1)

  • Temperature and Strain Rate Dependences of Yield Stress of an Al–Li–Cu–Mg–Zr Alloy

    Furukawa Minoru , Miura Yasuhiro , Nemoto Minoru

    … At testing temperatures above 473 K, the yield stress increases linearly with the logarithm of strain rate at any aging stage, and the strain rate dependence increases with increasing testing temperature. …

    Transactions of the Japan Institute of Metals 28(8), 655-665, 1987

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  • The Strain Rate Dependence of Yield Stress of an Al–Li Alloy Containing δ′-Ll<SUB>2</SUB> Ordered Particles

    Furukawa Minoru , Miura Yasuhiro , Nemoto Minoru

    … At testing temperatures above 373 K, the yield stress increases linearly with the logarithm of strain rate, and its strain rate dependence increases with increasing testing temperature. …

    Transactions of the Japan Institute of Metals 27(1), 14-22, 1986

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  • Effect of Ti and Si on Precipitation Hardening of Martensitic Stainless Steel

    HOSHINO Kazuo , HIROTSU Sadao

    … The effects of Ti and Si on the age-hardening response and ductility after aging were studied for low C, N-14Cr-7Ni martensitic stainless steel, and the main results obtained are as follows:<BR>(1) The age-hardening response of steels containing Ti singly is dependent on the logarithm of effective Ti contents ([Ti]) and the effect of [Ti] is almost the same as that in Fe-18Ni alloy.<BR>(2) While the age-hardening response of steels containing Si alone is small, that of steels containing Ti in the presence of more than 2 at% Si is very large. …

    Tetsu-to-Hagane 72(3), 489-496, 1986

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  • The Strain Rate Dependence of Yield Stress of an Al-Li Alloy Containing δ′-L1<SUB>2</SUB> Ordered Particles

    Furukawa Minoru , Miura Yasuhiro , Nemoto Minoru

    … At testing temperatures above 373 K, the yield stress increases linearly with the logarithm of strain rate, and the strain rate dependence increases with increasing testing temperature. …

    Journal of the Japan Institute of Metals and Materials 49(7), 501-507, 1985

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  • Growth of ζ-Compound in Galvanizing Drosses  [in Japanese]

    YAMAGUCHI Hiroshi , HISAMATSU Yoshihiro

    … to a Zn-Pb bath to an amount of super-saturation. … in dross was determined by a method of the ferrite grain size test for the ferritepearite mixed structures.<br>The mean particle size of ζ, expressed in size number N, decreases linearly with the logarithm of holding time. …

    Journal of the Metal Finishing Society of Japan 28(1), 27-29, 1977

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  • Study on the blistering of aluminium (3rd Report):Blistering caused by aqueous vapour in the heating atmosphere

    KAWASHIMA Namio , YAMADA Hajime , YOKOTE Takamasa , UENO Hiroshi

    … The authors studied the effect of the dew point in the heating atmosphere and the effect of very small amounts of iron, silicon and beryllium added in super-purity aluminium on the blisters originating from the reaction of water vapour and aluminium. …

    Journal of Japan Institute of Light Metals 14(4), 231-238, 1964

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  • Recrystallization temperature of high purity Magnesium (part 4)

    ICHIKAWA Riei

    … on recrystallization temperature of commercial purity magnesium prepared by vacuum evaporation process and super high purity magnesium obtained by repeated vacuum evaporation, were carried out by X-ray analysis.<br>Influences on recrystallization temperature of working degree, purity of magnesium, working temperature, annealing time and temperatute, crystal grain size before working and aging at room temperature were investigated.<br>Results obtained were as follows:<br>1) Recrystallization temperature didn't much vary according to …

    Journal of Japan Institute of Light Metals 1956(20), 93-98, 1956

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