摘要:
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. The electron beam system has a correction factor storing section 32 for storing a correction factor at a reference tilt angle with respect to a plane which is used to tilt a sample by a sample tilting section 5, an approximate coordinate measuring section 28 for obtaining an approximate shape or approximate coordinate values of the sample based on an output corresponding to a stereo image from an electron beam detecting section 4, an image correcting section 30 for correcting the stereo image according to the tilt angle created by the sample tilting section 5 based on the shape or coordinate values of the sample obtained in the approximate coordinate measuring section 28 using a correction factor stored in the correction factor storing section 32, and a precise coordinate measuring section 34 for obtaining a shape or coordinate values of the sample which are more precise than those obtained in the approximate coordinate measuring section 28 based on a corrected stereo image obtained in the image correcting section 30.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要翻译:本发明提供一种从便宜且容易获得的原料油中生产β-甲基萘的方法。 根据本发明,可以以降低的成本批量生产适用于工业用途的高纯度β-甲基萘。 该方法包括在具有选自钒(V),铬(Cr),镍(至少一种)的至少一种金属种类的催化剂存在下,含有具有至少两个甲基的烷基萘的进料油的催化加氢脱烷基化 Ni),铑(Rh),铂(Pt),铱(Ir),以及作为活性成分的这些金属的化合物和其中含有氧化铝和二氧化硅作为其主要成分中的至少一种的载体,氢分压 1〜50kgf / cm 2,温度450〜650℃,接触时间3〜35秒。 本发明的方法优点在于它以高产率提供化学级的β-甲基萘。
摘要:
The clutch cover assembly comprises a clutch cover, a pressure plate, a washer-type spring and a lever member. The clutch cover is fixed to a flywheel. The pressure plate is located within said clutch cover and is fashioned with a pressing surface for clamping facings against the flywheel. The washer-type spring engages the pressure plate to the flywheel. The lever member, supported by the clutch cover, is for engaging the pressure plate in combination with the washer-type spring to the flywheel and for releasing engaging loads of the washer-type spring from the pressure plate.
摘要:
A method of recording an optical disk, by irradiating a laser light onto a predetermined track of the optical disc to record information pits corresponding to an input composite signal including data signal and synchronization signal, includes the steps of: detecting a record timing of the synchronization signal to be recorded; and reducing at least one of a recording power and a recording duty of the laser light when the information pit corresponding to the synchronization signal is recorded by the laser light, according to the detected record timing.
摘要:
A reservoir, provided with a device for warning when the level of an operation fluid to be supplied to a fluid pressure master cylinder drops below a given level, comprises a fluid tank for storage of the operation fluid and a float chamber with an upper wall provided on the side portion of the fluid tank. A reed switch for the fluid level drop warning device is provided at the lower portion of the float chamber, and a float having a magnet is retained in the float chamber. A partition for restricting the movement of the float is detachably mounted at the communicating section between the fluid tank and float chamber. This arrangement facilitates the mounting and replacement of the float and reed switch.
摘要:
Disclosed are an ink jet recording water-based ink having excellent long-term storage stability and ejection stability at a pigment concentration greater than or equal to a certain level and a simple and efficient method for producing such a water-based ink. The present invention provides an ink jet recording water-based ink in which the total content of polyvalent metals as impurities in the water-based ink is not more than 1.2 ppm in terms of 1 mass % of a pigment concentration. Furthermore, the present invention provides a method for producing an ink jet recording water-based ink; the method enables efficient production of the above-mentioned ink jet recording water-based ink through a contact treatment with a particulate chelating resin in which each resin particle contains both an alkali metal-bonded chelating group and a hydrogen-bonded chelating group.
摘要:
A highly efficient method is provided for producing a water-based ink for ink jet recording with which the number of coarse particles in a water-based pigment dispersion liquid is significantly reduced, dispersed particles are made finer, the dispersion stability is improved, the storage stability is improved, and high discharge stability is achieved when a water-based ink for ink jet recording is produced. Particularly, provided is a method for producing a water-based pigment dispersion liquid, the method including kneading a mixture containing a quinacridone type pigment (a), a styrene-acrylic acid type copolymer (c), a basic compound (d), and a polyoxyalkylene glycol or its derivative (e) to prepare a pigment dispersion that is solid at room temperature and mixing a aqueous medium and the pigment dispersion to decrease the viscosity and liquefy the pigment dispersion.