Abstract:
There are provided an imaging unit for capturing an image of a portion of a body surface of a living body with near-infrared light and generating near-infrared light imaging data, a vein pattern extraction unit for extracting a vein pattern from the near-infrared light imaging data by applying a differential filter, which outputs a large value for a pixel having a large difference between the pixel and its surrounding pixel, to a plurality of pixels constituting the near-infrared light imaging data, and a pseudo-vein pattern determination unit for determining presence of a pseudo-vein pattern intentionally formed on a part of the captured body surface based on the extracted vein pattern.
Abstract:
There is provided a biometric authentication system including a plurality of information processing devices divided to a first group for performing a primary authentication based on feature quantity information unique to a biological pattern of a user associated with biological information, and specifying an identification number assigned to the user, and a second group for performing a secondary authentication on the biological information that succeeded in the primary authentication based on the identification number and registered biological information registered in advance. The input biological information is transmitted to all information processing devices belonging to the first group, the biological information that succeeded in the primary authentication is added as queuing information to a queue, and each of the information processing devices belonging to the second group acquires the queuing information positioned at a head of the queue when the secondary authentication process being executed in the own device is terminated.
Abstract:
Provided are a fluorescent on/off switchable compound for a gene analysis, which is highly stable and highly sensitive, and enables amplification and observation of a trace gene signal, and a labeling reagent for detection of a bio-related material, which uses the fluorescent on/off switchable compound. A compound represented by the following formula (I′): wherein X is a hydrogen atom or a carboxylic acid-protecting group, Y is a 2,4-dinitrobenzenesulfonyl group, a 2-cyano-4-nitrobenzenesulfonyl group or a 5-nitropyridin-2-ylsulfonyl group, R1, R2, R3 and R4 are each independently a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group having a carbon number of 1 to 6, an alkoxy group having a carbon number of 1 to 6, an aryl group having a carbon number of 6 to 10, or a cyano group.
Abstract:
It is an object of the present invention to provide: a novel thiol-detecting reagent, which can be used in vivo and which solves the problem regarding the generation of background fluorescence due to hydrolysis; and a method for detecting thiol using the aforementioned reagent. The present invention provides a compound represented by the following formula (1): wherein each R2 independently represents an alkyl group containing 1 to 6 carbon atoms, a halogen atom, or a hydrogen atom.
Abstract:
An authentication apparatus includes: a first determination section that determines whether a condition for determining that there is a possibility of an erroneous determination is satisfied based on information indicating the similarity between the shape of a biological part included in a biological image to be authenticated and the shape of a biological part included in a registration biological image; a change section that changes an aspect ratio of the biological image to be authenticated and registration biological image in the case where the above condition is satisfied; and a second determination section that determines whether a person to be authenticated is a registrant based on the similarity between the shape of a biological part included in a biological image to be authenticated whose aspect ratio has been changed and the shape of a biological part included in a registration biological image whose aspect ratio has been changed.
Abstract:
An effluent produced in oxidation of a cellulosic material with an oxidizing agent in the presence of an N-oxyl compound and a bromide and/or iodide is deionized by electrodialysis to an inorganic salt concentration of less than 0.4%, whereby the N-oxyl compound in the effluent is concentrated and recovered. The N-oxyl compound thus recovered can be reused in oxidation of a cellulosic material. Preferably, the effluent is subjected to reduction treatment and ion exchange resin treatment prior to the electrodialysis.
Abstract:
The present invention provides a method for producing a fatty acid alkyl ester, including step 1 of adding at least one surfactant selected from anionic surfactants, cationic surfactants and amphoteric surfactants and water to a crude fatty acid alkyl ester and stirring to obtain a mixture containing aggregates, and step 2 of separating the aggregates from the mixture from step 1 so that the removal rate of steryl glucoside is 60% or more.
Abstract:
To suitably reduce data amount. For example, feature points from a branch point or an end point to the next branch point or an end point in a blood vessel line are set as a group. In the three feature points satisfying one of the condition that the absolute value of the outer product of vectors in continuous three feature points is smaller than an outer product threshold value, and the condition that a cosine in the above three feature points is smaller than a cosine threshold value, the middle one of the three feature points satisfying the other of the above conditions and being the smallest is eliminated, for every group.
Abstract:
A cellulosic material is oxidized with an oxidizing agent in the presence of (1) an N-oxyl compound and (2) a bromide, an iodide or a mixture thereof. The resulting material is subjected to defibration and dispersion treatment to prepare a cellulose nanofiber dispersion liquid. The dispersion liquid thus obtained is acidified so that the cellulose nanofibers are aggregated to form a gelatinous substance. Ultimately, the gelatinous substance is treated mechanically to obtain a cellulose gel dispersion liquid which has low water absorbency and does not tend to swell.
Abstract:
The invention relates to a compound of the following formula (I) X—CR1R2R3 wherein —R1 is an organic moiety having 6 to 24 carbon atoms; —R2 is H or an organic moiety having 6 to 24 carbon atoms; —R3 is X or OH; —X is a moiety of the following formula (II): or an ammonium or C1-C4 alkyl ammonium salt of the moiety of formula (II); wherein -x is 0 or 1; -y is 0 or 1; -z is 0 or 1; -m is a number from 2 to 10; -n is a number from 0 to 10; -o is a number from 0 to 10; —R4 is H or a C1-C4 alkyl group; —R5 is a C6-C22 alkyl or alkenyl group or, if n or o is at least 1, a C7-C23 acyl group; —R6 is H or R5; —R7 is a C1-C4 alkylene group. which is capable of delivering aldehyde-type or ketone-type fragrance compounds, providing a long-lasting release of said fragrance compounds. This compound can be incorporated into fiber conditioning compositions, such as hair conditioners and fabric softeners, to enhance the fragrance performance. The compound provides controlled release from the substrate where it has been deposited over an extended period of time.