Abstract: A process is provided for producing aqueous pigment dispersions for ink-jet recording in which fine pigments are stably dispersed and such a state can be maintained for a long period of storing. Moreover, a process is provided for producing aqueous pigment dispersions for ink-jet recording in which the time required for production such as dispersing time is short, and the production efficiency is high. The process for producing aqueous pigment dispersions for ink-jet recording includes a first step of kneading (1) a styrene-acrylic type resin with a styrene type monomer unit of 50 to 90 mass %, and at least one unit selected from an acrylic monomer unit and methacrylic monomer unit, having an acid value of 50 to 300, (2) a pigment, (3) a basic compound, and (4) a humectant to produce a solid colored kneaded product, and a second step of dispersing the solid colored kneaded product in an aqueous medium comprising water or water and humectant.

Abstract: In energy absorbing structures in an entire train, a compression amount at an interface between cars at an end portion of a train is reduced and compression at an interface between cars at a center portion of the train is facilitated. In the structure, a plurality of cars (A1 to A12) are coupled to one another through couplers (B1 to B11), and energy absorbing structures (S12 to S42, S82 to S122) are provided between cars. An average compressive load corresponding to a value obtained by dividing an energy absorption amount of the energy absorbing structure by a maximum compression amount of the energy absorbing structures (S12 to S42, S82 to S122) is set smaller at an interface between cars at a center portion of the train than at an interface between cars on an outer side of the train (closer to an end portion).

Abstract: To provide an electron beam system capable of performing three-dimensional measurement of a sample with high precision irrespective of the tilt angle and height of the sample.

Abstract: A high withstand voltage semiconductor chip mounted on a package or a board is covered with a sealing resin, and the resin is cured while a high voltage is applied between at least one of electrode terminals connected from a chip electrode or the chip via wiring of wires or the like and another electrode that necessitates a dielectric withstand voltage between the electrode and the electrode terminal during the curing. The sealing resin is provided by a synthetic high molecular compound structured in a manner that an organic silicon polymer C is constituted by alternately linearly linking an organic silicon polymer A having a crosslinking structure of siloxane with an organic silicon polymer B having a linear link structure of siloxane (Si—O—Si bond) by siloxane bond and the polymers are three-dimensionally linked together by covalent bond.

Abstract: The present invention provides a charged particle beam apparatus capable of preventing the charging-up of the specimen without using a large-scale facility. A scanning electron microscope 100 illuminates a specimen 21 with a charged particle beam via a charged particle optical system arranged in a column. According to the present invention, the scanning electron microscope 100 has a charge preventive member 110 disposed between the objective lens 14 and the specimen 21. The charge preventive member 110 has an electrically conductive portion and an opening 113 to transmit the charged particle beam. The charge preventive member 110 is formed so as to partly cover the charged particle optical system when viewed from the charged particle beam irradiation spot on the specimen. In addition, the charge preventive member 110 has gas inflow paths 114 and 115 formed therein. These gas inflow paths have gas injection outlets 116 formed to inject gas toward the charged particle beam irradiation spot on the specimen.

Abstract: To provide an electron beam system capable of performing three-dimensional measurement of a sample with high precision irrespective of the tilt angle and height of the sample.

Abstract: To provide an electron beam system capable of performing three-dimensional measurement of a sample with high precision irrespective of the tilt angle and height of the sample.

Abstract: Disclosed are an aqueous pigment dispersion for inkjet ink, a method for producing the same, and an ink composition for inkjet recording which mainly contains the aqueous pigment dispersion for inkjet ink. The method for producing the aqueous pigment dispersion for inkjet ink is characterized by comprising a kneading step wherein a mixture including a styrene resin, a quinacridone pigment, a phthalimidomethylated quinacridone compound, an alkali metal hydroxide and a wetting agent is kneaded for producing a solid colored kneaded material, and a dispersing step wherein the thus-obtained solid colored kneaded material is dispersed into an aqueous medium.

Abstract: A missile to be fired from a barrel contains a tail, a tail sleeve attached to the tail, a stop element fixed to the tail sleeve, and a movable structural part disposed at the tail. Fin assembly wings are provided and are to be released from a subcaliber launch position to an overcaliber functional position by the movable structural part moving toward the stop element through a given distance. A pressure area is disposed between the tail end surface and the movable structural part. A propellant gas enters the pressure area during the firing of the missile, for moving the movable structural part away from the tail end surface against the stop element after firing. Bearing shafts are supported by the tail sleeve, the fin assembly wings are configured as a wrap around tail fin assembly held about the bearing shafts.

Abstract: To provide a scanning electron microscope that can detect with high efficiency the secondary electrons generated from the entire surface of a target, in a scanning electron microscope with an objective lens having a retarding electric field near a sample, at least two detectors are arranged with axial symmetry to electron optical axis, a target that causes secondary electrons or reflected electrons to collide with the target is disposed near the detectors, and at least one electrode member having a negative potential lower than a potential of the target is formed almost with axial symmetry to the electron optical axis.

Abstract: A process for measuring the mercury concentration within a hydrocarbon is provided that enables the mercury concentration to be measured simply and quickly, and with good reliability and good reproducibility. A process for measuring the mercury concentration within a hydrocarbon includes the steps of placing and weighing the hydrocarbon in a sample boat 12 containing an adsorbent that contains a metal capable of forming an amalgam with mercury, and heating the hydrocarbon inside the sample boat 12 in a combustion furnace 13, together with the adsorbent, and measuring the quantity of mercury within the thus generated gas.

Abstract: A missile to be fired from a barrel contains a tail, a tail sleeve attached to the tail, a stop element fixed to the tail sleeve, and a movable structural part disposed at the tail. Fin assembly wings are provided and are to be released from a subcaliber launch position to an overcaliber functional position by the movable structural part moving toward the stop element through a given distance. A pressure area is disposed between the tail end surface and the movable structural part. A propellant gas enters the pressure area during the firing of the missile, for moving the movable structural part away from the tail end surface against the stop element after firing. Bearing shafts are supported by the tail sleeve, the fin assembly wings are configured as a wrap around tail fin assembly held about the bearing shafts.

Abstract: To provide an electron beam system capable of performing three-dimensional measurement of a sample with high precision irrespective of the tilt angle and height of the sample.

Abstract: In energy absorbing structures in an entire train, a compression amount at an interface between cars at an end portion of a train is reduced and compression at an interface between cars at a center portion of the train is facilitated. In the structure, a plurality of cars (A1 to A12) are coupled to one another through couplers (B1 to B11), and energy absorbing structures (S12 to S42, S82 to S122) are provided between cars. An average compressive load corresponding to a value obtained by dividing an energy absorption amount of the energy absorbing structure by a maximum compression amount of the energy absorbing structures (S12 to S42, S82 to S122) is set smaller at an interface between cars at a center portion of the train than at an interface between cars on an outer side of the train (closer to an end portion).

Abstract: A rational technical process for producing dialkylnaphthalenes from petroleum-derived starting materials which exist in abundance is established.

Abstract: A wire for a wire saw apparatus for slicing a material includes an element wire, a binder coated on an outside circumferential surface of the element wire, and abrasive grains dispersed in the binder. The element wire is a high tensile strength metal wire, the binder is a material such as an organic or inorganic material other than a metal, and the abrasive grains are held on a surface of the element wire by the binder. The element wire is also made by either a natural quartz glass or a high purity synthesis quartz glass.

Abstract: The present invention provides an electrophotographic photoreceptor which can be prepared so easily as to exhibit a photosensitivity well-adjusted for the respective type of machine in the dip coating method, which is an ordinary method for the preparation of an electrophotographic photoreceptor. A novel electrophotographic photoreceptor is provided comprising a charge-transporting layer and a charge-generating layer provided on an electrically-conductive support, wherein the charge-generating layer is a layer comprising a charge-generating material containing a phthalocyanine compound represented by the following general formula (1) dispersed in a resin: ##STR1## wherein Ar.sup.1 and Ar.sup.2 each independently represent an orthophenylene group which may have a substituent; and Pc represents an unsubstituted or substituted phthalocyanine residue.

Abstract: The present invention provides an electrophotographic photoreceptor which can be prepared so easily as to exhibit a photosensitivity well-adjusted for the respective type of machine in the dip coating method, which is an ordinary method for the preparation of an electrophotographic photoreceptor. A novel electrophotographic photoreceptor is provided comprising a charge-transporting layer and a charge-generating layer provided on an electrically-conductive support, wherein the charge-generating layer is a layer comprising a charge-generating material containing a phthalocyanine compound represented by the following general formula (1) dispersed in a resin: ##STR1## wherein Ar.sup.1 and Ar.sup.2 each independently represent an orthophenylene group which may have a substituent; and Pc represents an unsubstituted or substituted phthalocyanine residue.

Abstract: The present invention provides a method for producing .beta.-methylnaphthalene from an inexpensive and easily available feed oil. According to the invention, highly pure .beta.-methylnaphthalene adequate for industrial use can be mass-produced at reduced costs. The method comprises catalytic hydrodealkylation of a feed oil containing an alkyl naphthalene having at least two methyl groups in the presence of a catalyst having at least one metal species of selected from the group consisting of vanadium (V), chromium (Cr), nickel (Ni), rhodium (Rh), platinum (Pt), iridium (Ir), and compounds of these metals as an active component and a carrier therefor containing at least one of alumina and silica as its primary component, with a hydrogen partial pressure of 1 to 50 kgf/cm.sup.2, at a temperature of 450.degree. C. to 650.degree. C., and for a contact time of 3 to 35 seconds. The method of the invention is excellent in that it affords .beta.-methylnaphthalene of a chemical grade with a high yield.

Abstract: An information reading apparatus has a feature that, when a disc on which data is recorded by a CLV system is read out by a CAV system, a transfer rate is changed in accordance with an amount of data recorded on the disc and the data can be efficiently read out in a short time. In an information reading apparatus arranged such that data read by rotating at a constant angular velocity a disk-shaped recording medium on which data is recorded at a constant linear velocity is transmitted to an external apparatus through a buffer memory, there is provided a setting unit for setting a rotational angular velocity of the disk-shaped recording medium in a manner such that a transfer rate when the information read at a predetermined radial position excluding the outermost peripheral portion in the information recording region of the disk-shaped recording medium is transferred to the buffer memory is equal to the maximum sustain transfer rate at which the information reading apparatus can perform the reading operation.