摘要:
A water-absorbing resin has a polymer molecular chain in which 50 mol % or more of repeating units in the chain are carboxy group-containing units, wherein the carboxy group neutralization ratio in the central part of the resin is 60 mol % or more and the carboxy group neutralization ratio on the external surface of the resin is 50 mol % or less. A method for producing the water-absorbing resin comprises polymerizing a monomer solution to form a polymer, drying the resulting polymer, and heat-treating the dried polymer, wherein the monomer solution contains a mixture comprising an alkali metal salt of an unsaturated carboxylic acid and an ammonium salt thereof, the percentage of the ammonium salt being more than 50 mol % of the mixture, and further contains a condensation crosslinking agent.
摘要:
The white chromaticity, in which the illumination environment is considered, is measured for each individual color monitor (100). A reference body (Q), comprising a perfect diffuser, is applied on the screen of the color monitor (100). By a test pattern display means (210), a test pattern (T) is displayed on the screen of the color monitor (100) based on tone values of the three primary colors R, G, and B that are stored in a tone value storage means (220). While fixing the tone value of the primary color R at 255, the tone values of the primary colors G and B are varied cyclically from 0 to 255 in a prescribed period by a tone value varying means (240). An operator inputs the result of comparing the color of the test pattern (T) and the color of the reference body (Q). When a comparison result indicating the matching of the two is input, a comparison result entering means (230) outputs an agreement signal. A measurement result output means (250) outputs, as the measurement results indicating the white chromaticity based on the reference body (Q), the tone values of the three primary colors R, G, and B that are stored in the tone value storage means (220) at the point at which the agreement signal is provided.
摘要:
A pictorial image comprising pixels represented by a combination of density values in respect to first color components (R, G, B) is transformed to a pictorial image comprising pixels represented by combination of density values in respect to second color components (C, M, Y). In accordance with the first color modification method, an operation expressed as Q=.alpha.P+.beta. is implemented to an original density value P using two correction coefficients .alpha. and .beta. determined in advance to determine a density value Q after transformation. In addition, in accordance with the second color modification method, density values after transformation are determined by the calculation of the k-th degree masking equation using the k-th degree masking coefficients. At this time, a color cube is defined with respect to the first color components. The color cube thus defined is divided into an n number of blocks. The k-th degree masking coefficients are defined every respective blocks. Then, calculation of the k-th degree masking equation is performed using the k-th degree masking coefficients defined with respect to blocks involving points indicative of original density values within the color cube.
摘要:
A thyristor has a pnpn four layer structure having a positive bevel in an anode side and a negative bevel in a cathode side. A ramp of a distribution of impurity concentrations in an anode-emitter layer near an anode-emitter junction is greater than a ramp of a distribution of impurity concentrations in a cathode-base layer near a central junction so as to improve the trade-off relation between the forward voltage drop and the withstand voltage.
摘要:
An image formation apparatus is disclosed. The image formation apparatus includes a transfer effectiveness detector that further includes a computing unit for converting a sensor output voltage into a toner adhesion amount, and a transfer effectiveness detecting unit for obtaining transfer effectiveness by comparing a toner adhesion amount Td on a photo conductor with a toner adhesion amount Tb on a middle transfer object. Here, the toner adhesion amount Td is obtained by the computing unit converting an output of a photo conductor image detection unit, and the toner adhesion amount Tb is obtained by the computing unit converting an output of a middle transfer object image detection unit. When the transfer effectiveness detection unit determines that an abnormality is present in the transfer, whether the abnormality is due to decreased development capacity or due to decreased transfer effectiveness can be determined. If it is determined that the transfer effectiveness is less than a threshold value, a printing operation of the image formation apparatus is stopped given that the transfer effectiveness compensation is not possible.
摘要:
A fixing device wherein supposing that the total load given to the heating roller and the pressure roller is W (kgf) and the area of the pressure contact portion of the heating roller with respect to the pressure roller (nip area) is S (cm2), the nip pressure (=W/S) is 2.7 kgf/cm2 or more and the length of the pressure contact portion in the direction parallel to the direction of conveyance of the recording material is defined to be 14 mm or more.
摘要翻译:一种定影装置,其中假设加热辊和加压辊的总负载为W(kgf),加热辊的压力接触部分相对于加压辊(夹持区域)的面积为S(cm < SUP> 2),压区压力(= W / S)为2.7kgf / cm 2以上,压接部的长度方向平行于输送方向 的记录材料被定义为14mm或更大。
摘要:
There is disclosed a semiconductor device wherein a p layer (7) is formed in an isolating portion (Z) and portions (1a, 1b) of an n-type base layer (1) lie on opposite sides of the p layer (7), the upper surfaces of the p layer (7) and the portions (1a, 1b) lying in the same plane as the upper surface of a p layer (3). The presence of the p layer (7) provides for high resistance to breakdown and high formation accuracy of the p layers (2, 3, 7) as compared with a structure in which the isolating portion (Z) lies in the bottom of a the recess, whereby the semiconductor device is less susceptible to short-circuit between the p-type base layer (2) and the p layer (3).
摘要:
One surface of a cathode sliding compensator is finished as an irregular surface while another surface thereof is finished as a sliding surface. The irregular surface is arranged to contact with a cathode electrode layer of a semiconductor element while the sliding surface is arranged to contact with a cathode conductor, and junction surfaces therebetween are electrically and mechanically connected by pressurization. Thus, the irregular surface bites into the cathode electrode layer to attain excellent electrical and mechanical connection between the cathode electrode layer and the cathode sliding compensator, while slidingness can be effectively retained between the cathode conductor and the cathode sliding compensator by the function of the sliding surface.
摘要:
The semiconductor device has a first emitter layer and an auxiliary first emitter layer each having a first electrical conductivity, a first base layer having a second electrical conductivity, a second base layer having said first electrical conductivity and a second emitter layer having said second electrical conductivity. The layers are formed in the stated order from one main surface of the semiconductor to the other with the first base layer being partially exposed in the region of the auxiliary first emitter layer on said one main surface to form a gate region. A heavy metal impurity such as gold or platinum whose density is higher than the impurity density determining the electrical conductivity of said second base layer is selectively diffused in a particular region which extends through said gate region to make the specific resistance of said second base layer inside said particular region higher than the specific resistance of said second base layer outside said particular region.
摘要:
A catalyst membrane including a porous polytetrafluoroethylene membrane having grafted thereon polystyrenesulfonic acid. The catalyst membrane is useful for hydrolyzing water soluble organic substances such as polysaccharides.