摘要:
An erasable image forming material includes a color former, a developer, a binder resin, and a polymer decolorizer having an electron donating group capable of physically or chemically adsorbing the developer. This polymer decolorizer is, e.g., a polymer compound having a sugar skeleton, representatively starch. This image forming material can form sharp images and erase images by heat or a solvent to achieve a good erased state.
摘要:
This invention provides a display apparatus, control method, and control program, which display hue differences and color difference values of respective patches as lists, and display the hue direction of the hue difference of each individual patch on a chromaticity diagram in an easy-to-understand manner. To accomplish this, a display method of this invention includes a specifying step of specifying a color determined by a hue difference calculated from first and second values associated with spectral reflectance characteristics, and a display step of displaying the color specified in the specifying step as a graphical object. The specified color is specified as a representative color that indicates a hue on a chromaticity diagram to which the hue difference biases.
摘要:
The problems to be solved by the invention are to provide a fiber reinforced cement composition for obtaining a fiber reinforced cement product which is excellent in bending strength, dimensional stability and installation property such as handling property, flexibility performance and nail performance, as well as a process for manufacturing the product.Namely, the fiber reinforced cement composition comprises the following raw materials: a hydraulic inorganic material, a siliceous material and a woody reinforcement, wherein the siliceous material is a mixture of an average particle size of not less than 15 μm and not more than 50 μm which is burned ash of coal and/or rhyolite and an average particle size of not less than 1 μm and not more than 15 μm which is burned ash of coal and/or rhyolite.The effects of the present invention, it is possible to obtain a fiber reinforced cement product having good bending strength, dimensional stability and installation property such as handling property, flexibility performance and nail performance.
摘要:
A paper classification apparatus includes a heater for heating paper or a solvent supply unit for supplying a solvent to the paper, a detector, a computer, and a selector guide. The detector detects the reflection density of the paper after being heated or supplied with the solvent. The computer compares the detected reflecting density of the paper with a predetermined reference value stored in a memory. The selector guide classifies the paper on the basis of a comparison result of the reflection density. This apparatus can classify plain paper having an image formed with an ordinary image forming material, plain paper having an image formed with an erasable image forming material, and thermosensible paper.
摘要:
An epoxy resin composition comprising (a) an epoxy resin, (b) a curing agent, (c) a cure accelerator and (d) silica powder. The silica powder (d) is composed of (d1) a first silica powder having a particle diameter ranging from 5 to 75 .mu.m, (d2) a second silica powder having a particle diameter ranging from 0.2 to 0.9 .mu.m, and (d3) a third silica powder having a particle diameter ranging from 0.01 to 0.08 .mu.m.
摘要:
A diaphragm for loudspeakers comprises chitin as a natural high polymeric material having a large value of Young's modulus and kraft pulp having large mechanical internal loss. Therefore, the deformation and the partial vibrations of the diaphragm during diaphragm operation do not come out due to the use of the chitin, because the flexural rigidity of the diaphragm is considerably large. Mechanical internal loss is also large owing to the use of the kraft pulp. As a result, it is possible to obtain a loudspeaker which has little fluctuation in frequency response, and which provides a superior sound pressure-frequency response, a superior distortion factor and a superior phase response.
摘要:
A speaker diaphragm molded from a poly-bisphenol phthalate type plastic film having ester linkages prepared from an aromatic dicarboxylic acid such as isophthalic acid or terephthalic acid or a mixture thereof and a bifunctional phenol such as bisphenol A. This speaker diaphragm has an excellent low-pitched sound reproducing performance and is further featured by the flat acoustic pressure-frequency characteristic and improved transduce efficiency.
摘要:
There is provided a method of creating a color chart for color evaluation used in color evaluation, including: an obtaining step of obtaining standard color chart data corresponding to a standard color chart including a plurality of patches; a display step of displaying an evaluation target image on a display screen; a setting step of setting an area in the evaluation target image, which is used to create a color chart for color evaluation; a computing step of computing color element data which represent color features of an image within the set area based on image data of the set area; and a creating step of creating the color chart for color evaluation by extracting patch data corresponding to the computed color element data from the standard color chart data.
摘要:
The present invention relates to a fiber reinforced cement composition and products and a manufacturing process thereof. The fiber reinforced cement product and the manufacturing process are safe for human body, and, even more particularly, bending strength and dimensional stability and construction characteristics such as nail performance of the product are preferable. In other words, the fiber reinforced cement composition comprising a hydraulic inorganic material, a siliceous material and woody reinforcement, wherein a siliceous material is amorphous material.
摘要:
A fiber reinforced cement composition having the following raw material composition is provided to manufacture a fiber reinforced cement product which is excellent in bending strength, dimension stability, handling property, flexibility performance, and processability such as nail performance, as well as to provide a process for manufacturing the product.Namely, the fiber reinforced cement composition comprises a hydraulic inorganic material, a siliceous material and a woody reinforcement in a mass ratio of CaO to SiO2 contained in the hydraulic inorganic material and the siliceous material in the raw materials in a range of from 23:77 to 60:40.