摘要:
Hydantoin derivatives and salts thereof, intermediates therefor, process for the preparation thereof, and medicines containing the derivative, wherein said derivatives have the formula ##STR1## wherein one of V and W is hydrogen and the other is a halogenomethyl group, 1H-tetrazol-5-yl radical, --COOR group, in which R is hydrogen atom, an alkyl group, --(CH.sub.2 CH.sub.2 O)nCH.sub.3 group (n is an integer of 1 to 113) or substituted phenyl, ##STR2## in which R.sub.1 and R.sub.2 are same or different independently, each is hydrogen atom, an alkyl group, substituted phenyl or --(CH.sub.2 CH.sub.2 O)nCH.sub.3 group (n has the meaning as referred to) or R.sub.1 may form a heterocyclic ring together with R.sub.2 and nitrogen or oxygen atom, ##STR3## in which R.sub.3 and R.sub.4 are same or different independently and each is hydrogen atom or an alkyl group,X is oxygen or sulfur atom, and Y and Z are same or different independently and each is hydrogen atom, a halogen atom, alkyl group, alkoxy group, alkylmercapto group, nitro radical or --NHR.sub.5 group, in which R.sub.5 is hydrogen atom or an acyl group.The derivatives and salts thereof are useful for the treatment of complications of diabetes.
摘要:
A weld detecting method that detects a weld on a work includes: obtaining in advance at least one correlation, from among a correlation between a width of the neck and an amount of elongation of the work and a correlation between the width of the neck and an amount of change in at least one of a sheet thickness and a sheet width of the work before and after elongation of the work, and calculating the width of the neck based on the at least one correlation by obtaining at least one of the sheet thickness, the sheet width, or the amount of elongation of the work from the obtained at least one correlation; setting a conveying speed, according to the calculated width of the neck; and detecting the neck by measuring the sheet width of the work at predetermined intervals, while conveying the work the set conveying speed.
摘要:
A web conveying apparatus that conveys a web, includes: a transverse position displacement detection unit that detects a transverse position displacement of the web; a transverse position correction unit that corrects a transverse position of the web by a guide roller; width detection units that detect a width size in a left-right direction of the web; and a control unit that controls the transverse position correction unit in accordance with the transverse position displacement detected by the transverse position displacement detection unit and performs feedback control to position the web in a target position. The control unit changes a correction amount in the feedback control in accordance with the width size of the web detected by the width detection units.
摘要:
Disclosed is a magnetic recording medium evaluating method capable of providing a discrete-type or bit-pattern-type magnetic recording medium that has stable head floating characteristics even when concave and convex portions remain on the surface and can respond to high recording density with high productivity. A method of evaluating a magnetic recording medium having a magnetic recording pattern on at least one surface of a disk-shaped substrate and includes concave and convex portions corresponding to the magnetic recording pattern on the surface includes: floating and moving a head slider having a sensor attached thereto above the surface of the magnetic recording medium that is rotated; detecting a signal output from the sensor in a non-contact state between the head slider and the magnetic recording medium; and determining whether the magnetic recording medium is defective on the basis of the signal.
摘要:
There is provided a method of producing a magnetic recording medium having a magnetically separated magnetic recording pattern formed therein, without oxidizing or halogenating a surface of a magnetic layer, and also without contaminating the surface with dust and without complicating a production process,the method of producing a magnetic recording medium characterized by including, in this order: a step of forming a magnetic layer (2) on top of a non-magnetic substrate (1); a step of forming a mask layer (3) for forming a magnetic recording pattern on top of the magnetic layer (2); and a step of irradiating an ion beam (10) onto regions in the magnetic layer (2) which are not covered by the mask layer (3), removing an upper layer portion of the magnetic layer (2) at that regions (7), and reforming magnetic properties of a lower layer portion (8), wherein two or more types of positive ions having different masses are used for the ion beam (10), and an ion gun for forming the ion beam has a positive electrode that forces out positive ions from an ion source towards a substrate side, and a negative electrode that accelerates the positive ions towards the substrate side.
摘要:
To provide a secondary circulation cooling system using a composition which is less influential over the environment as a secondary coolant, is non-inflammable, has a small pressure drop particularly at a low temperature and has a large heat transfer coefficient.A secondary circulation cooling system comprising a primary cooling means 1 using a primary coolant, a secondary circulation cooling means 13 using a secondary coolant and a heat exchange means 6 to carry out heat exchange between the primary coolant and the secondary coolant, characterized in that a composition comprising a fluorinated ether such as CF2HCF2OCH2CF3, and an alcohol such as ethanol, is used as the secondary coolant.
摘要翻译:为了提供二次循环冷却系统,其使用作为二次冷却剂对环境影响较小的组合物,不易燃,特别是在低温下具有小压力并且传热系数大。 二次循环冷却系统,包括使用一次冷却剂的主冷却装置1,使用二次冷却剂的二次循环冷却装置13和用于在主冷却剂和二次冷却剂之间进行热交换的热交换装置6,其特征在于, 使用包含氟化醚如CF 2 HCF 2 OCH 2 CF 3和醇如乙醇的组合物作为二次冷却剂。
摘要:
Disclosed is a magnetic recording medium evaluating method capable of providing a discrete-type or bit-pattern-type magnetic recording medium that has stable head floating characteristics even when concave and convex portions remain on the surface and can respond to high recording density with high productivity. A method of evaluating a magnetic recording medium having a magnetic recording pattern on at least one surface of a disk-shaped substrate and includes concave and convex portions corresponding to the magnetic recording pattern on the surface includes: floating and moving a head slider having a sensor attached thereto above the surface of the magnetic recording medium that is rotated; detecting a signal output from the sensor in a non-contact state between the head slider and the magnetic recording medium; and determining whether the magnetic recording medium is defective on the basis of the signal.
摘要:
A web conveying apparatus that conveys a web, includes: a transverse position displacement detection unit that detects a transverse position displacement of the web; a transverse position correction unit that corrects a transverse position of the web by a guide roller; width detection units that detect a width size in a left-right direction of the web; and a control unit that controls the transverse position correction unit in accordance with the transverse position displacement detected by the transverse position displacement detection unit and performs feedback control to position the web in a target position. The control unit changes a correction amount in the feedback control in accordance with the width size of the web detected by the width detection units.
摘要:
A rotational tool retaining member unit 37 is mounted at one end portion thereof to a FSW gun body 26. The rotational tool retaining member unit 37 is provided at the other end thereof with a fitting hole 61 and a plurality of mounting passages 60 which are formed on a peripheral surface thereof such that the mounting passages 60 open on the opposite side of the one end portion and are spaced apart from each other in the circumferential direction. A mounting member unit 38 has a plurality of pin members 67. The mounting member unit 38 is mounted to the rotational tool retaining member unit 37 in such a manner that the pin members 67 are moved from the openings to the tip end portions of the mounting passages 60 and fitted thereinto. A rotational tool 33 is inserted into the mounting member unit 38. The rotational tool 33 has one end portion thereof a tie-in portion which is fitted to the fitting hole of the retaining means. The mounting member unit 38 is provided with a biasing means 69 for exerting a force on the rotational tool retaining member unit 37 to inhibit the pine members 67 from coming off the tip end portions.
摘要:
A method for the production of a magnetic recording medium includes the steps of forming a magnetic layer on a nonmagnetic substrate, injecting atoms into portions of the magnetic layer to cause the portions to be demagnetized or allowed to acquire amorphousness, thereby forming a magnetically separated magnetic recording pattern, the step of injecting atoms including the steps of applying to a surface of the formed magnetic layer an SOG film as a resist, partly removing or thinning the resist, and irradiating the surface with atoms, thereby partly injecting atoms into the magnetic layer through the portions of the magnetic layer from which the resist is removed or in which the resist is thinned.