Abstract: The present disclosure provides a method for preventing corrosion capable of sufficiently protecting a surface of an aluminum-based member (in particular, a contact surface with a gasket) from corrosion, particularly when the surface of the aluminum-based member is sealed by the gasket. The method for preventing corrosion of a surface of an aluminum-based member constituting a structure that sandwiches the gasket together with another member in a press contact state, wherein a surfactant is made to adhere to the surface of the aluminum-based member.

Abstract: The present disclosure provides a gasket for corrosion prevention, which can exhibit an excellent corrosion protection performance over a long period of time, without changing rubber characteristics of a rubber elastic body itself. The gasket for corrosion prevention includes a rubber elastic body and a surface active agent, and the surface active agent exists at least in an inner part of the rubber elastic body, in an impregnated state in which the surface active agent can exude to a surface of the rubber elastic body.

Abstract: An image processing apparatus includes a generating unit and a display. The generating unit performs a reduction process on at least a part of document data to generate a reduced image. The display displays the reduced image.

Abstract: Provided is an image processing apparatus including a memory that stores information, and a reduced image generation unit that extracts a row including a distinguishable part from other rows as a heading from a vertically long range from top to bottom on a left end side when document data is horizontally written, extracts a row including a distinguishable part from other rows as a heading from a horizontally long range from a right end to a left end on an upper end side when the document data is vertically written, and generates a portion including the heading as a reduced image.

Abstract: An image processing apparatus includes a generating unit and a display. The generating unit performs a reduction process on at least a part of document data to generate a reduced image. The display displays the reduced image.

Abstract: Provided is an image processing apparatus including a memory that stores information, and a reduced image generation unit that extracts a row including a distinguishable part from other rows as a heading from a vertically long range from top to bottom on a left end side when document data is horizontally written, extracts a row including a distinguishable part from other rows as a heading from a horizontally long range from a right end to a left end on an upper end side when the document data is vertically written, and generates a portion including the heading as a reduced image.

Abstract: Disclosed is a method for producing a hollow fiber carbon membrane using a hollow fiber carbon membrane-forming material by means of a dry method or dry-wet method comprising a spinning step, a drying step, an infusibilization step, and a carbonization step as basic steps; wherein in the infusibilization step, heat treatment is performed at least two times at different temperatures, with the second temperature being higher than the first temperature. It is preferable that the second heat treatment is performed directly after the first treatment is performed, without once cooling to room temperature. The obtained hollow fiber carbon membrane has improved permeability, without reducing its separation coefficient.

Abstract: A hollow fiber membrane module comprising a bundling tube including a body part and head parts placed at both terminals of the body part and O-rings with which the bundling tube is fitted into a housing being attached to outer circumferential surfaces of the head parts, wherein at least one of the head parts are divided into two in a place closer to a terminal of the bundling tube than places where the O-rings are attached while maintaining a cylindrical shape of the head part, and the divided parts have a slidable structure while maintaining a coupled condition therebetween that forms the cylindrical shape. The hollow fiber membrane module is capable of preventing damage effectively on a hollow fiber membrane or the bundling tube due to expansion or contraction of the hollow fiber membrane to be caused by change of an external environment such as temperature.

Abstract: Disclosed is a method for producing a hollow fiber carbon membrane using a hollow fiber carbon membrane-forming material by means of a dry method or dry-wet method comprising a spinning step, a drying step, an infusibilization step, and a carbonization step as basic steps; wherein in the infusibilization step, heat treatment is performed at least two times at different temperatures, with the second temperature being higher than the first temperature. It is preferable that the second heat treatment is performed directly after the first treatment is performed, without once cooling to room temperature. The obtained hollow fiber carbon membrane has improved permeability, without reducing its separation coefficient.

Abstract: A hollow fiber membrane module comprising a bundling tube including a body part and head parts placed at both terminals of the body part and O-rings with which the bundling tube is fitted into a housing being attached to outer circumferential surfaces of the head parts, wherein at least one of the head parts are divided into two in a place closer to a terminal of the bundling tube than places where the O-rings are attached while maintaining a cylindrical shape of the head part, and the divided parts have a slidable structure while maintaining a coupled condition therebetween that forms the cylindrical shape. The hollow fiber membrane module is capable of preventing damage effectively on a hollow fiber membrane or the bundling tube due to expansion or contraction of the hollow fiber membrane to be caused by change of an external environment such as temperature.

Abstract: A membrane-forming dope solution for carbon membranes, comprising a polyphenyleneoxide polymer, ammonium nitrate, and a solvent having a boiling point of 100° C. or more and being capable of dissolving these components; the membrane-forming dope solution having a concentration of the polyphenyleneoxide polymer of 20 to 40 wt. %, and a concentration of the ammonium nitrate of 1 to 10 wt. %. The membrane-forming dope solution for carbon membranes is subjected to vacuum defoaming, and then subjected to a spinning step, thereby producing a carbon hollow fiber membrane. The use of the membrane-forming dope solution for carbon membranes can reduce yarn breakage during spinning or the formation of pinhole defects in the resulting polymer hollow fiber membranes.

Abstract: A simulation apparatus simulates a process executed by an image forming apparatus. The simulation apparatus includes a first acquiring unit, an image generating unit and a first output unit. The first acquiring unit acquires an image formation command comprising information of a target image. The image generating unit generates an image, which is expected to be output by the image forming apparatus, based on the acquired image formation command. The first output unit coverts the generated image into data in a predetermined format. The first output unit outputs the converted data.

Abstract: A magnetic fluid containing fine particles of ferrite stably dispersed in a carrier liquid is prepared by adding carrier liquid and a dispersing agent selected from N-polyalkylenepolyamine-substituted alkenylsuccinimide, an oxyalkylene-substituted phosphoric acid ester and a nonionic surfactant, and, if required, hydrocarbon solvent having a low boiling point to particles of ferrite which is coated with water-soluble surfactant and subjecting the resulting mixture to a dispersion treatment and, if required, removal of the hydrocarbon solvent.

Abstract: A magnetic fluid containing fine particles of ferrite stably dispersed in a low vapor pressure base oil is prepared by adding N-polyalkylenepolyamine-substituted alkenylsuccinimide (and a low vapor pressure base oil) to a suspension of fine particles of surfactant-adsorbed ferrite dispersed in a low boiling point hydrocarbon solvent, heating the resulting mixture, separating the hydrocarbon solvent therefrom, adding a low vapor pressure base oil and a specific dispersing agent to the fine particles of N-polyalkylenepolyamine-substituted alkenylsuccinimide-coated ferrite as the residues and subjecting the resulting mixture to a dispersion treatment.