摘要:
This fastener driving device is equipped with an impact force applying device that repeatedly applies impact forces to a fastener; and a load cell that detects a reaction force acting on the impact force applying device. The impact force applying device stops the applying of the impact force to the fastener on the basis of a detection result of the reactive force.
摘要:
This fastener driving device is equipped with an impact force applying device that repeatedly applies impact forces to a fastener; and a load cell that detects a reaction force acting on the impact force applying device. The impact force applying device stops the applying of the impact force to the fastener on the basis of a detection result of the reactive force.
摘要:
In a method of fastening composite material parts, a first smoothness of a first fastener is measured which is arranged to a first countersink through-hole which is formed in a first fastened work as stacked composite material parts. A second countersink depth is determined based on the first smoothness. A second countersink through hole with a second countersink depth is formed in a second fastened work as the composite material parts. The second fastened work is fastened using the second fastener arranged to the second countersink through-hole.
摘要:
In a method of fastening composite material parts, a first smoothness of a first fastener is measured which is arranged to a first countersink through-hole which is formed in a first fastened work as stacked composite material parts. A second countersink depth is determined based on the first smoothness. A second countersink through hole with a second countersink depth is formed in a second fastened work as the composite material parts. The second fastened work is fastened using the second fastener arranged to the second countersink through-hole.
摘要:
Provided is a sealant applicator which enables an operator to uniformly apply a given amount of sealant to a fastener in a short time regardless of the skill of the operator. The sealant applicator according to the present invention includes: an inner space defined by a substantially cylindrical inner surface that receives a fastener in an axial direction from one end; and a concave-convex portion formed in the inner surface and composed of a convex portion to be located adjacent to the fastener and a concave portion to be located apart from the fastener.
摘要:
An object of the present invention is to provide means for preparing a monosaccharide by efficiently hydrolyzing a polysaccharide. In particular, in a method that uses a homogeneous acid catalyst to obtain a monosaccharide from a polysaccharide, a low energy, low cost catalytic separation method is provided, and in addition, a method for obtaining high reaction selectivity is provided. In addition, provided is a homogeneous acid catalyst separation method that separates a homogeneous acid catalyst from a homogeneous acid catalyst-containing solution with high efficiency and realizes a high homogeneous acid catalyst recovery ratio at low energy costs, and that is applicable to a variety of reaction systems.The present invention is a method for preparing a monosaccharide by hydrolyzing a polysaccharide using a homogeneous acid catalyst, wherein the method comprises a hydrolysis step of hydrolyzing a polysaccharide using a homogeneous acid catalyst with a molecular weight of 200 or greater to generate a monosaccharide, and a separation step of the homogeneous acid catalyst after hydrolysis, and the separation step includes at least one step selected from the group consisting of the following (A) to (C): (A) a step of separating the homogeneous acid catalyst by performing homogeneous acid catalyst membrane separation treatment using a molecular sieve membrane, on a homogeneous acid catalyst-containing solution after the hydrolysis step; (B) a step of separating the homogeneous acid catalyst by performing organic compound thermal decomposition treatment on a hydrolysis reaction residue separated by solid-liquid separation after the hydrolysis step; and (C) a step of separating the homogeneous acid catalyst by performing homogeneous acid catalyst elution treatment using an alkaline solution or an organic solvent-containing solution, on the hydrolysis reaction residue separated by solid-liquid separation after the hydrolysis step.
摘要:
The present invention provides a process for more efficiently producing an α-hydroxycarboxylic acid ester wherein side reactions due to the α-hydroxycarboxylic acid ester are inhibited or prevented in comparison with prior art production processes.The invention provides a process for producing an α-hydroxycarboxylic acid ester comprising Steps 1 to 3:Step 1. reacting, in the presence of oxygen, (i) a 1,2-diol with a 1,2-diol or (ii) a 1,2-diol with an alcohol to obtain a reaction product containing an α-hydroxycarboxylic acid ester;Step 2. separating the α-hydroxycarboxylic acid ester from the reaction product obtained in Step 1 by distillation under reduced pressure; andStep 3. feeding Step 1 with a mixture obtained by partially or entirely removing water from the reaction product, wherein the mixture contains an unreacted 1,2-diol and/or alcohol.
摘要:
It is an object of the present invention to provide a catalyst for manufacturing a carboxylic ester, which has superior catalytic activity. The present invention relates to a catalyst for preparing a carboxylic ester, used in a) a reaction for preparing a carboxylic ester by reacting oxygen, an aldehyde, and an alcohol, or b) a reaction for manufacturing a carboxylic ester by reacting oxygen and one or more types of alcohol, comprising a carrier and 1) ultrafine gold particles and/or 2) ultrafine metal particles containing gold and a second element other than gold, having an average particle diameter of not more than 6 nm, are supported on the carrier.
摘要:
Load information and a first processing time are provided in association with each of a plurality of first time segments that each have a fixed duration time and are included in a first time period, where the load information indicates a load condition of a target computer that executed a target job during the each first time segment, and the first processing time indicates a running time of the target job during the each first time segment. One or more first time segments each having a predetermined analogous relationship with a second time segment in a second time period during which the target job is expected to be executed by the target computer are selected to predict a second processing time indicating a running time of the target job during the second time period based on the first processing times associated with the selected one or more first time segments.
摘要:
A computer-readable recording medium having recorded a message display control program for notifying that a message has been generated, without interfering with the operation of the user. A notification acceptance block accepts a notification that an event has occurred in a window and obtains notification information related to the event. A notification history message generation block generates a notification history message in accordance with the notification information stored in a notification information database. A window status confirmation block checks whether the window corresponding to the notification information is active. If the window is active, a pop-up message display block displays a pop-up message corresponding to the notification information on the screen. If the window is inactive, a notification icon display block displays a notification icon corresponding to the notification information of the window on the screen of the active window.