摘要:
A digital signature generation apparatus includes memory to store finite field Fq and section D(ux(s, t), uy(s, t), s, t) as secret key, section being one of surfaces of three-dimensional manifold A(x, y, s, t) which is expressed by x-coordinate, y-coordinate, parameter s, and parameter t and is defined on finite field Fq, x-coordinate and y-coordinate of section being expressed by functions of parameter s and parameter t, calculates hash value of message m, generates hash value polynomial by embedding hash value in 1-variable polynomial h(t) defined on finite field Fq, and generates digital signature Ds(Ux(t), Uy(t), t) which is curve on section, the x-coordinate and y-coordinate of curve being expressed by functions of parameter t, by substituting hash value polynomial in parameter s of section.
摘要:
A decryption apparatus includes a section assignment unit which assigns a section D to a plurality of encrypted texts Fi(x,y,t) (i=1, . . . , k), a one-variable polynomial arithmetic unit which subtracts L pairs of polynomials he(t) and hw(t) after the assignment, and a greatest common divisor arithmetic unit which obtains the greatest common divisor φ(t) of L polynomials gj(t)(=he(t)−hw(t)) (j=1, . . . , L) as a result of the subtraction.
摘要:
To provide a double-deck elevator characterized by the fact that by increasing the story height adjustment range in the direction in which the two cars approach each other, it is possible to increase the degree of building design freedom. Two up/down cars (6), (7) arranged in outer frame (5) are connected with each other by means of pantographic mechanisms (11) that can effect an expansion and contraction operation, and the two cars (6), (7) are driven to move towards each other or away from each other by means of pantographic mechanisms (11). The pantographic mechanisms (11) are arranged in the spaces between vertical beams (5a) and the two cars (6), (7) and each has a pivot point at the longitudinal central portion of vertical beams (5a) extending vertically in outer frame (5). Due to the pantographic mechanisms (11), the story height adjustment range in the direction in which the two cars (6), (7) approach each other is not restricted.
摘要:
A direct liquid fuel cell power generating device of the invention comprise an anode electrode, a cathode electrode, an electrolyte membrane held by the anode electrode and the cathode electrode, an anode Passage for passing a fuel, a cathode passage for passing an oxidizer, a fuel container connected to the feed port of the anode passage, and a cathode recovery container connected to the discharge port of the cathode passage for collecting the fuel supplied to an electromotive force section, an unreacted oxidizer, an a product of battery reaction, the device further comprising at least a mechanism for achieving gas-liquid contact by making contact between the substance discharged from the cathode discharge port and water existing in the cathode recovery container, and a mechanism for feeding the aqueous solution collected in the cathode recovery container into the fuel container.
摘要:
There is disclosed a metal particle-dispersed composite oxide comprising a matrix material containing a composite oxide comprising a non-reducible metal oxide and an easily reducible metal oxide, the composite oxide containing 0.01 to 0.25 mol % of at least one additive metal selected from Al, Sc, Cr, B, Fe, Ga, In, Lu, Nb and Si, surface metal particles precipitated on an outer surface of the matrix material containing the composite oxide, and inner metal particles precipitated on an inner surface of the matrix material containing the composite oxide.
摘要:
The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc.The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.
摘要翻译:本发明涉及通式(I)的化合物:其中Ar 1是任选取代的芳基或杂芳基; R 1是任选取代的低级烷基,低级烯基,低级炔基或环 - 低级烷基,或者是任选具有取代基的芳基,芳烷基或杂芳族基团; R 2是氢原子,低级烷基,低级烯基或低级炔基,或者是任选具有取代基的芳基,芳烷基或杂芳基; R 3是氢原子或低级烷基; R 4是氢原子,卤素原子,羟基,低级烷基或-N(R 1)1个基团)的基团, SUP>; T和U是氮原子或次甲基等。本发明的化合物具有优异的韦尔激酶抑制作用,因此可用于药物领域,特别是治疗各种癌症。
摘要:
A key generating apparatus generates a fibration X(x, y, t)=0 of an algebraic surface X serving as a part of a public key and defined on a finite field Fq (where q=pr [p is a prime number and r is an extended degree]) and a private key which is two sections D1 and D2 corresponding to the fibration X(x, y, t)=0. The fibration X(x, y, t) is generated such that a term (cij(t)xiyj) of xiyj having a 1-variable polynomial cij(t) of t as a coefficient is included in the fibration X(x, y, t).
摘要:
There is provided a ceramic matrix composite whose strength is less degraded even in a high-temperature range at, especially, 1,400.degree. C. or higher, and a method of manufacturing the ceramic matrix composite. The ceramic matrix composite in which reinforcements are arranged in a ceramic matrix to be combined to the ceramic matrix is characterized in that the main component of the ceramic matrix consists of silicon carbide and molybdenum silicide based compound, the density ratio of the matrix is 90% or higher.
摘要:
The welding quality of materials sandwiched between and welded by two electrodes is monitored by a welder monitor, which includes a detecting section for detecting a welding current and a welding voltage, an operation section for numerically analyzing, based on a heat conduction model, a temperature distribution of the two electrodes and that of the materials using the detected welding current and welding voltage, to thereby estimate a nugget diameter during welding, a reference diameter setting section for setting a reference nugget diameter, and a diameter comparing section for comparing the nugget diameter during welding with the reference nugget diameter, to thereby compute a time at which the nugget diameter exceeds the reference nugget diameter. The welder monitor also includes a reference time setting section for setting a reference time shorter than a given time until which welding of intended materials is not terminated, a time comparing section for comparing a nugget formation time, at which the nugget diameter during welding exceeds the reference nugget diameter, with the reference time set by the reference time setting section, and an output section for outputting a comparison result from the time comparing section. When the nugget formation time is shorter than the reference time, the nugget formation time is outputted to the output section.
摘要:
A device for connecting a catheter to an injection tube, which is provided with an elastic tube into which an open end of the tubular catheter having electrodes disposed at the closed end thereof and also having conductive wires connected to said electrodes and taken out at the open end thereof and an open end of the injection tube having a mechanism for fluid injection at the other end thereof are inserted so that both open ends are connected end-to-end and the conductive wires are taken out through a gap between the elastic tube and the injection tube; and a sealing agent to cover respective surfaces of the catheter, injection tube, and elastic tube which surfaces are coated with an adhesive. The catheter, injection tube, and elastic tube, when coated with an adhesive of high viscosity, are compatible with the hard sealing agent lying thereabove. A casing consisting of half members encloses the sealing agent and the casing increases the strength of the device, whereby the device is prevented from being deformed and prevented from causing leakage of fluid through the gap even when subjected to external force. The device has improved resistance to external pressure. In addition, connection of the conductive wires between the electrodes and the terminals arranged on the side of the casing serves to tightly fix the wires in the sealing agent packed in the case and causes no breakage of the wires, whereby the wires are connected to the external parts through the terminals to thereby provide a device with improved reliability.