摘要:
The invention relates to a toner for developing electrostatic latent images for use in copying machines and including a thermoplastic resin and a black coloring material as main components. The black coloring material comprises a substantially non-magnetic inorganic black pigment of 5-25 cc/100 g oil absorption and 0.5-10 .mu.m average particle diameter, to obtain high quality copy images having fine textures.
摘要:
Lepidocrocite (.gamma.-FeOOH) with an large specific surface area and a uniform particle size is provided by a method comprising preparing a suspension of ferrous hydroxide at a pH of 6.5 to 7.5 by adding a ferrous salt solution with an alkali solution in an amount of 0.4 to 0.7 times the theoretical amount for converting all the ferrous salt to ferrous hydroxide, blowing an oxygen-containing gas into the suspension to form a seed crystal of .gamma.-FeOOH, completing the generation reaction of .gamma.-FeOOH by blowing an oxygen-containing gas into the suspension while adding an alkali solution to keep the pH of the suspension within a range of 3 to 5, in which an Si concentration of the suspensions for seed reaction and for generation reaction of .gamma.-FeOOH is controlled to be within 5 to 30 ppm.
摘要:
A grinding tool has diamond superabrasive grains as the abrasive and a bond to retain the abrasive grains. The bond is made of organic polymer or metal and contains as a filler both a solid film-forming lubricant and finely divided diamond superabrasive grains having a grain size smaller than one-third that of the diamond superabrasive grains as the abrasive. The grinding tool of this invention is suitable for grinding a hard cutting material such as cutting tools made of titanium nitride cermet and exhibits outstanding cutting performance and durability.
摘要:
A radiotherapy apparatus controller includes: a portal image taking unit; a gantry position collector; a marker position calculator; and a marker position table generator. The portal image taking unit takes a first transmission image, in which a marker member positioned at a predetermined position is shown, by using therapeutic radiation and an imager. The gantry position collector collects a first gantry position at which a gantry is positioned when the first transmission image is taken from a sensor measuring a position at which the gantry is positioned, the gantry supporting the imager and a therapeutic radiation radiating device which radiates the therapeutic radiation. The marker position calculator calculates a first marker position at which the marker member is shown in the first transmission image. The marker position table generator updates a marker position table, which correlates a plurality of gantry positions with a plurality of marker positions, so that the first gantry position corresponds to the first marker position.
摘要:
An attachment structure comprises a top ceiling, a cover member to cover a window glass from the inside of a vehicle compartment, an airbag which is stored along an upper edge portion of the window glass in its non-operation state and inflates downward through a gap which is formed between the window glass and the side end portion of the top ceiling which is pressed down by the airbag receiving a gas pressure from an inflator; and support members to support the cover member longitudinally at a position which is on an outside of the inflating airbag. Accordingly, the proper inflation of the airbag can be provided despite of the cover member at the window.
摘要:
In the case of mounting a liquid storage tank or an intake air resonator on a substantially frame-shaped resin shroud panel (1) with an opening (11d) in which a radiator (2) is disposed, the shroud panel (1) is integrally formed at its both lateral sides with body fastening parts (12, 12) which will be fastened to right and left front side frames (4, 4), respectively, and the body fastening parts (12, 12) are integrally formed on their outsides in the vehicle width direction with casing placement parts (15a, 16a) on which will be placed a casing (15) for a liquid storage tank and a casing (16) for an intake air resonator in proximity to the body fastening parts (12, 12), respectively.
摘要:
The present inventors provides polyol-containing resin compositions for coatings which can give cured coating films having high hardness and at the same time high solid compositions to meet the recent resources saving and/or environmental protection requirements, and curable coating compositions having high reactivity at curing, giving the coating film with good appearance and the coatings with prolonged pot life. The invention is directed to a resin composition for coatings comprising a polyol (A1) or (A2), a polyether polyol (B) and a solvent (C), wherein the polyol (A1) comprises a hydroxyl-containing polymerizable unsaturated monomer and a ring structure-containing polymerizable unsaturated monomer as essential components and the polyol (A2) comprises a hydroxyl-containing polymerizable unsaturated monomer and a linear branched structure-containing polymerizable unsaturated monomer as essential components.
摘要:
Disclosed are a hydrogen-occluding alloy electrode comprising an alloy powder wherein the alloy comprises a Ti--V solid solution mother phase and a secondary phase predominantly containing a Ti--Ni phase or an AB.sub.2 Laves phase in which the secondary phase forms a three-dimensional reticulate skeleton in the alloy; said hydrogen-occluding alloy powder surface-treated with hydrofluoric acid to provide a titanium hydride surface and surface-coated with at least one metal of Ni, Cu and Co.
摘要:
A water quality control method for recycling cooling water in a cooling tower equipped with a blow system and water treatment agent introduction means. Water is made up in response to the blow-down amount encountered by a blowing operation, and water treatment introduction means is actuated to introduce the water treatment agent into the recycle cooling water in the cooling tower, whereby the concentration of said agent in the recycle cooling water is retained at a desired level. The water treatment agent is made up by a predetermined amount, according to the amount of scattered water, at predetermined intervals of time during the operation of the arrangement. The water treatment introduction means is actuated after lapse of a fixed period of time, based on a predetermined level of the conductivity of the cooling water at the operational starting or cleaning of the cooling tower.