摘要:
A method of making high-purity fine particles of reactive metals, reactive especially in terms of their inclination to form hydroxides, comprises the steps of: preparing an inert gas atmosphere within which to manufacture the particles; reducing the moisture remaining in the inert gas atmosphere to an extremely low level; pulverizing the reactive metal within the moisture-free inert gas atmosphere; and collecting and sealing the product particles of reactive metal in a storage container in the same moisture-free inert gas atmosphere. The vessel for containing the inert gas atmosphere comprises: a hermetically sealable vessel capable of maintaining the inert gas atmosphere; a pair or rubber gloves for carrying out manual operations in the vessel under the inert gas atmosphere; a cryogenic cooling device attached to one wall of the vessel for condensing away the moisture remaining in the inert gas atmosphere into dew droplets; and an accumulator for equalizing the inner pressure of the vessel with the ambient atmospheric pressure.
摘要:
A heat exchanger including a first and second header is disclosed. The headers are linked in fluid communication by a plurality of elongated fluid tubes. In a first embodiment, the first and second headers are integrally formed as a single pipe having a partition wall extending radially across. Left and right intermediate headers are disposed laterally of the single pipe. Two groups of fluid tubes link the first header to a lower portion of the intermediate headers, and two additional groups of fluid tubes link the intermediate headers to an upper portion of the second header. In a second embodiment, the first and second headers are disposed in a spaced parallel arrangement and are approximately half the length of the left and right intermediate headers with which they are linked at an upper portion of the intermediate headers by fluid tubes. The lower parts of the intermediate headers are linked directly by a third group of tubes to complete the fluid circuit of the heat exchanger.
摘要:
An apparatus for performing a group control on elevators is disclosed, by which a total operation of the elevators for respective floors of building is controlled. This apparatus includes condition-instruction table which contains a plurality of predetermined control rules being defined by given conditions and given instructions. The apparatus also includes an elevator controller for detecting, in accordance with a specific rule selected from the control rules, a degree of establishment of the given conditions to provide a detected condition, and for generating, in accordance with the detected condition, an elevator control instruction used for performing the group control.
摘要:
In pre-foamed particles of a propylene-base resin obtained by foaming raw particles of the propylene-base resin, the relation, G.sub.1 -G.sub.2 .gtoreq.10%, exists between the content G.sub.1 (%) of matter, which is contained in the pre-foamed particles and is insoluble in boiling n-heptane, and the content G.sub.2 (%) of matter contained in the raw particles and insoluble in boiling n-heptane. The pre-foamed particles have excellent moldability and can hence provide with ease low-density (highly-expanded) molded articles, which enjoy superb dimensional accuracy, good surface conditions, low percent water absorption, excellent impact and chemical resistance.
摘要:
A process for producing particles having an increased particle diameter from a powder of a polyolefin resin, which comprises heating the polyolefin resin powder at a temperature higher than the melting point of the resin in a dispersion medium in the presence of a dispersing agent and a surface-active agent.
摘要:
A process for producing pre-foamed particles of a polypropylene resin which comprises expanding original pre-foamed particles of a polypropylene resin, said original pre-foamed particles having the following relation2
摘要:
An amidine compound represented by formula (I) (wherein A1 represents a nitrogen atom or a group represented by formula CR6; A2 and A3 are the same as or different from each other and independently represent a nitrogen atom or a group represented by formula CH; R1 represents an aryl group which may be substituted by 1 to 5 substituents independently selected from a substituent group (2) or the like; R2 and R3 are the same as or different from each other and independently represent a hydrogen atom, a halogen atom, a C1-6 alkyl group, a C1-6 haloalkyl group or a C1-6 alkoxy group; and R4 and R5 are the same as or different from each other and independently represent a hydrogen atom, a C1-6 haloalkyl group, a C1-6 alkyl group or the like) or a salt thereof. The compound is useful as an anti-fungal agent.
摘要翻译:由式(I)表示的脒化合物(其中A1表示氮原子或式CR6表示的基团; A2和A3彼此相同或不同,并且独立地表示氮原子或由式CH表示的基团; R1表示可以被1〜5个独立地选自取代基(2)等的取代基取代的芳基; R2和R3彼此相同或不同,独立地表示氢原子,卤素原子, C 1-6烷基,C 1-6卤代烷基或C 1-6烷氧基; R 4和R 5彼此相同或不同,独立地表示氢原子,C1-6卤代烷基,C1 -6烷基等)或其盐。 该化合物可用作抗真菌剂。
摘要:
A reinforced flame retardant resin composition including 20 to 87% by mass of an (A) thermoplastic resin, 3 to 20% by mass of a (B) aromatic phosphoric acid ester-based flame retardant agent, 5 to 40% by mass of (C) mica powder, and 0.5 to 30% by mass of (D) hydrous mineral powder having a dehydration starting temperature for crystallization water in a range of 400 to 600° C.
摘要:
A chemical reaction transition state search system includes an input device, an arithmetic processing unit, and a storage device in order to find a chemical structure being in a targeted transition state in a chemical reaction. The arithmetic processing unit includes an IG forming unit, a CG-search calculating unit, a TS optimization calculating unit, a reactive-site fixing unit, a substituent processing unit, and a structural optimization calculating unit.
摘要:
A focus adjustment method of an LED print head of an image forming apparatus, including steps of: setting one end with respect to a longitudinal direction of the LED print head on a first position where a distance between the photoconductor and the LED print head becomes shorter than a designed focal length, and setting other end with respect to the longitudinal direction of the LED print head on a second position where the distance between the photoconductor and the LED print head becomes longer than the designed focal length; outputting a pattern image having a predetermined resolution; and adjusting the position of the LED print head by moving each of the one end and the other end of the LED print head, based on information of the resolution of the outputted pattern image.