摘要:
A dental gypsum composition is disclosed, comprising (A) 100 parts by weight of calcined gypsum, (B) from 0.005 to 5.0 parts by weight of an alkali metal tartrate, (C) from 0.1 to 5.0 parts by weight of a sugar alcohol, and (D) from 0.005 to 3.0 parts by weight of a retarder. The composition provides a denture model excellent in surface smoothness, dimensional precision, and mechanical strength even when combined with an impression made of an agar-based material or an alginate-based material.
摘要:
A video decoding apparatus including a memory for storing at least first and second reference pictures, a prediction signal forming circuit for forming a prediction signal to produce an output signal, using a first reference signal designated by a first motion vector for the first reference picture and a second reference signal designated by a second motion vector for the second reference picture read out of the memory. Also included is a decoding circuit for decoding the transmitted first motion vector and a transmitted motion vector difference, and for further decoding the second motion vector by adding a scaled motion vector and the motion vector difference. The scaled motion vector is derived by scaling the first motion vector to a motion vector for the second reference picture. Further included is a decoding circuit for decoding a transmitted difference signal and for obtaining the output signal by adding the difference signal and the prediction signal.
摘要:
A flame retardant thermoplastic resin composition which comprises (A) 50 to 90% by weight of a thermoplastic resin which is the base polymer and 50 to 10% by weight of a total of (B) a nitrogen-containing condensed phosphoric acid compound, (C) a comb-like polymer consisting of a polyethylene main chain and a polyoxyalkylene side chain and (D) a metal-containing compound having a carbonization accelerating effect, the amounts of the components (B), (C) and (D) being 5 to 49% by weight, 1 to 15% by weight and 0 to 10% by weight, respectively, in which the total amount of the components (A), (B), (C) and (D) is 100% by weight; a process for producing the composition; a flame-retardant consisting of the components (B), (C) and (D); and a process for producing the flame-retardant.
摘要:
A video coding apparatus comprises a memory for storing a coded picture signal used as a reference picture signal, a vector detecting circuit for detecting, from plural field picture signals or plural frame picture signals which are read out from the memory and the reference picture signals, an optimum motion vector regarding a picture to be coded, a prediction signal producing circuit for subjecting a spatial-temporal filtering to a reference picture designated by the optimum motion vector to produce a prediction signal, and a coding circuit for coding the to-be-coded picture signal on the basis of the prediction signal.
摘要:
A motion picture coding apparatus for performing predictive coding on a high-resolution picture signal and coding a low-resolution picture signal obtained by converting the high-resolution picture signal. One field is thinned out from one frame of a picture by a field skip circuit 102, the other field is down-sampled by a down-sampling circuit 29, thereby forming a low-resolution picture. A low-resolution predictive signal, obtained by up-sampling the low-resolution picture by an up-sampling circuit 35, and a high-resolution predictive signal, which is produced from a high-resolution picture and corresponds to the thinned-out one field, are alternately combined by a predictor 104 to form a predictive signal.
摘要:
A semiconductor memory device includes signal lines, a decoder for decoding an inputted address to output the decoded result to some of the signal lines, a matrixed memory array, a part of which being pre-specified as a compensated area, read out means for reading out data from memory cells in an area specified in accordance with a decode signal on the some signal line, a detector for detecting that the address is related with the compensated area from the decode signal on the some signal lines, the compensated area being pre-related with the some signal lines, and a fixed data outputting circuit for merging predetermined data into a predetermined part of the data read out from the memory cells in accordance with the detection signal to output the merged data. The fixed data outputting circuit is controlled by a control circuit in response to a merge control signal to output the data read out from the memory cells without the merging operation.
摘要:
A laminate comprising a soft polyolefin resin layer, an ethylene-unsaturated carboxylic acid ester-maleic anhydride terpolymer resin layer, and a soft urethane foam resin layer is disclosed. The laminate is produced by a process comprising co-extruding a soft polyolefin resin and an ethylene-unsaturated carboxylic acid ester-maleic anhydride terpolymer resin to prepare a two-layer sheet and continuously laminating a soft urethane foam fabricated in a stratiform state on the ethylene-unsaturated carboxylic acid ester-maleic anhydride terpolymer resin layer by hot pressing. The laminate has a satisfactory appearance, toughness, a soft touch, and a cushioning effect.
摘要:
An aqueous dispersion of a cationic polymer is disclosed, which is obtained by reacting an ethylene copolymer comprising from 40 to 80% by weight of ethylene and from 20 to 60% by weight of at least one aminoalkyl acrylamide comonomer represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 4, and having a melt index, as measured in accordance with JIS K-6760, of from 10 to 1,000 g/10 min with hydrochloric acid in water to form a quaternary salt and subsequently reacting the resulting quaternary salt with an epihalohydrin compound through addition reaction. The aqueous dispersion provides a coating film having an improved electrical conductivity or produces effects to simultaneously improve degree of sizing and wet strength of paper.
摘要:
A locking apparatus with a key comprising a cylindrical body, a cylindrical operation member mounted inside the body, a first spring for returning the operation member to an original position, a key rotor mounted inside the operation member, a second spring for urging the key rotor to rotate to an original position, a limiting member provided in the key rotor, a third spring for urging the limiting member to project outwardly from the key rotor, an engagement portion disposed in the body, the engagement portion being engaged with the limiting member projected outwardly by the third spring when the operation member is pushed inwardly by a predetermined stroke along the axis against the first spring by a manual operation, and a disengagement portion provide in the body, the disengagement portion unlocking the limiting member from the engagement portion thereby returning the operation member and the key rotor to original positions under the elastic forces of the first and second springs in response to rotation of said key rotor.
摘要:
A lead accumulator using dilute sulfuric acid as an electrolyte liquor is disclosed, in which the electrolyte liquor is fixed by absorption or impregnation into an ethylene copolymer resin or a molding thereof comprising from 40 to 90% by weight of an ethylene unit and from 10 to 60% by weight of at least one comonomer unit selected from (A) and ethylenically unsaturated comonomer unit having an amido group and an amino group in the molecule thereof and (B) an ethylenically unsaturated comonomer unit having an ester group and an amino group in the molecule thereof and having an average molecular weight of from 5,000 to 50,000. The lead accumulator can be produced easily and at a low cost without limitations of shape and volume and has high performance reliability.