Abstract: In a nuclear power plant, by injecting an amount of hydrogen small enough not to increase a radiation dose rate of the main steam system, ECP of metallic component materials composing a nuclear reactor can be decreased to suppress the potential of occurrence of IGSCC, and the control can be easily performed, and the operating cost can be suppressed to increase. Occurrence of intergranular stress corrosion cracking in metallic component materials in contact with reactor cooling water is suppressed by injecting zirconium hydroxide and hydrogen into the reactor cooling water to decrease the electrochemical corrosion potential of the metallic component materials.

Abstract: A digital image forming apparatus capable of allowing the colors of an image to be adjusted is disclosed. The apparatus guarantees tonality in a high image density portion and allows a low image density portion to be reproduced with a target density. Tonality correction tables can be generated without regard to the material of a recording medium or whether or not a cover plate or an ADF (Automatic Document Feeder) is laid on the medium. Further, the contribution of background data included in a scanner output representative of exclusive patterns can be determined machine by machine.

Abstract: An image forming apparatus according to the present invention comprises a scanner for optically scanning and reading a draft image, an image processing circuit for converting input image signals from this scanner to output image signals by referring to an image signal conversion table and outputting the converted signals, a laser optical system for writing image information on a photosensitive drum in response to the output image signals, developing units for forming images with toner, an image signal generating means for generating a plurality of gradation patterns, and a CPU which prepares and selectors an image signal conversion table according to read signals for gradation patterns read by the scanner; wherein a read signal for a gradation pattern comprises a plurality of signals with different spectral sensitivity respectively, and said image forming apparatus has a RAM to store calibration factors for the plurality of factors with different spectral sensitivity respectively and calibrates read signals a

Abstract: A digital image forming apparatus capable of allowing the colors of an image to be adjusted is disclosed. The apparatus guarantees tonality in a high image density portion and allows a low image density portion to be reproduced with a target density. Tonality correction tables can be generated without regard to the material of a recording medium or whether or not a cover plate or an ADF (Automatic Document Feeder) is laid on the medium. Further, the contribution of background data included in a scanner output representative of exclusive patterns can be determined machine by machine.

Abstract: A semiconducting ceramic composition having a positive temperature coefficient and a process for production thereof. The semiconducting ceramic composition comprises a barium titanate semiconducting ceramic composition containing silicon oxide and manganese, the semiconducting ceramic composition further comprising sodium in an amount of from 0.0005 to 0.02 wt % based on the amount of the barium titanate semiconducting ceramic composition.

Abstract: Image forming equipment having an image carrier and a developer carrier located face-to-face and forming an AC-superposed DC electric field between them to develop a latent image electrostatically formed on the image carrier. Sensors responsive to image forming conditions are provided and protected from noise ascribable to an AC component included in the electric field in the event when the sensors operate.

Abstract: An image forming apparatus having a developing device of the type using a two-component type developer and developing an electrostatic latent image by a bias electric field having an alternating electric field. A predetermined reference latent image is electrostatically formed on an image carrier by a reference latent image forming device and then developed by the developing device to become a reference toner image. An irregularity detecting circuit determines the degree of difference between the density of the edge and the density of the central portion of the reference toner image. A bias electric field control circuit controls the bias electric field in matching relation to the output of the irregularity detecting circuit, thereby preventing the image quality from being degraded by a change in the resistance of the carrier.

Abstract: A stitch data processing apparatus which can produce an embroidered pattern utilizing an automatic sewing machine from a pattern of any relative size. The pattern to be embroidered on a work piece is input to the stitch data processing apparatus via a charge coupled device. The charge coupled device produces an image which is displayed on a display device. An operator scales the image to fit onto the display device and then indicates points along the contour of the embroidered pattern and defines regions in which the automatic sewing machine will complete the embroidered pattern. The stitch data processing apparatus is capable of creating curved contours from a number of discreet points input by the operator. It is also possible to control stitch density.

Abstract: N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-3-trifluoromethylpyridine-2- sulfonamide or a salt thereof is disclosed. The compound of the invention is useful as a herbicide which has an extremely high herbicidal effect against a wide variety of weeds including strongly noxious weeds but which shows a high safety against tomato and turfs. A process for the production of N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-3-trifluoromethylpyridine-2 -sulfonamide is also disclosed.

Abstract: Novel substituted thiophenesulfonamide compounds useful as herbicides which are represented by the following formula, and salts thereof: ##STR1## wherein either one of X and Y is an ethenyl or propenyl group having all hydrogen atoms replaced by chlorine atoms and/or fluorine atoms, and the other is the group ##STR2## (wherein R.sub.1 and R.sub.2 are each a methyl or methoxy group, and A is .dbd.N-- or .dbd.CH--).

Abstract: A trifluoromethyl-2-(thio)pyridone compound having the formula: ##STR1## wherein X represents a hydrogen atom or a halogen atom, Y.sub.1 and Y.sub.2 each represents a hydrogen atom, a halogen atom or a trifluoromethyl group, and Z represents an oxygen atom or a sulfur atom, in which either Y.sub.1 or Y.sub.2 represents a trifluoromethyl group, and when X and Y.sub.2, or X and Y.sub.1 represent a hydrogen atom at the same time, then Z represents a sulfur atom,and a process for preparing the same.

Abstract: New .omega.-(N-acylamino)alkylphosphoryl ethanolamines and their pharmaceutically acceptable acid addition salts have superior renin-inhibitory activities, antihypertensive activities and cholesterol-lowering activities. The .omega.-(N-acylamino)alkylphosphoryl ethanolamines are prepared by (1) reacting an .omega.-(N-acylamino) alkanol with a 2-(N-substituted amino)ethyl phosphate or its derivative, hydrolyzing the resulting product or splitting off the phosphoric acid-protective group of the resulting product thereby to form an .omega.-(N-acylamino) alkyl 2-(N-substituted amino) ethyl phosphate, and splitting off the amino-protective groups of the resulting phosphate, or (2) reacting an .omega.-(N-acylamino) alkanol with a phosphorus oxyhalide, reacting the resulting .omega.-(N-acylamino)alkyl dichlorophosphate with a 2-(N-substituted amino) ethanol, hydrolyzing the reaction product to form an .omega.