摘要:
An object measuring apparatus uses lightwave interference by coherent beams. A single light beam having two lightwave components with a phase difference that changes in time is divided so that one lightwave component is applied to the object and the other lightwave component is applied to a reference surface. The lightwave components for the object and the reference surface are interfered with each other and a change in the interference light is detected.
摘要:
A method for enhancing an efficacy of an agricultural chemical which comprises incorporating a specific quaternary ammonium enhancer into a diluted solution of the agricultural chemical.
摘要:
A process for producing an N-alkyl-N-methylamine or an N-alkenyl-N-methylamine in a high yield from a higher alcohol and methylamine comprising the step of reacting a higher alcohol with methylamine in the presence of a catalyst comprising copper and a fourth period transition metal of the Periodic Table, except for chromium, or a catalyst comprising copper, a fourth period transition metal of the Periodic Table, except for chromium, and an element of the platinum group VIII of the Periodic Table, at a pressure ranging from atmospheric pressure to 100 atm. G., at a reaction temperature ranging from 100.degree. to 250.degree. C., with hydrogen gas being introduced into the reaction system while water produced in the reaction is removed from the reaction system and the amount of methylamine in the gaseous mixture which contains no matter formed through the reaction and is exhausted from the reaction system is regulated from 5 to 50% by volume.
摘要:
Disclosed is feeding apparatus comprising a first vibration apparatus having projections provided with a predetermined distance therebetween, the first vibration apparatus producing a first travelling vibration wave in response to an electrical signal applied thereto, and a second vibration apparatus having projections located at the positions substantially corresponding to the projections of the first vibration apparatus, the second vibration apparatus producing a second travelling vibration wave proceeding in the same direction as the first travelling vibration wave in response to an electrical signal supplied thereto thereby the sheet inserted between the projections of the first vibration apparatus and the projections of the second vibration apparatus being fed by the first and second travelling vibration waves.
摘要:
A vibration wave driven motor having a vibratory elastic member provided with an electro-mechanical energy conversion element, and a rail-type stator on which the elastic vibratory member is resiliently pressed by, for example, springs. When A.C. power is supplied to the electro-mechanical energy conversion element, a traveling vibration wave is generated in the elastic vibratory member so that a frictional force is produced to act between the stator and the elastic member so as to cause a relative movement between the elastic vibratory member and the stator. At least one of the sliding surface of the elastic vibratory member and the sliding surface of the stator has a smoothly curved configuration, so as to improve the durability of the motor.
摘要:
An improved sheet feeding device of this invention includes a variable pressure applying unit for changing a contact pressure between a sheet and vibration members.
摘要:
There is disclosed a sheet feeding device having a vibration member for generating vibration for feeding a sheet member. The vibration member is in frictional engagement with the sheet member, which is fed by vibration generated in the vibration member. The device further has a member for controlling the amplitude of the vibration of the vibration member according to the feeding speed of the sheet member whereby the sheet can be fed with a desired speed.
摘要:
A novel arrangement of variable-focal-length lens using an electrooptic effect is provided. A variable electric field is applied to an electrooptic crystal to produce therein a refractive index distribution having a lens action. The applied electric field is such that the intensity distribution of the lens varies along one direction in a plane normal to the direction of the light incidence but which has a uniform intensity distribution in the direction normal to this direction. A two-dimensional variable-focal-length lens is obtained by combining two such one-dimensional lenses in such manner that the two-lenses intersect each other at right angles with respect to the direction of the lens action. Also, a refractive index distribution having a two-dimensional lens action is produced to form a variable-focal-length lens when an electric field having an intensity distribution which varies within the plane normal to the direction of the incident light is applied to the electrooptic crystal.
摘要:
The present invention relates to the method for producing a nonionic surfactant, including the step (I) of reacting alcohol having a water content of not more than 0.1% by mass with ethylene oxide to obtain ethylene oxide-adduct, the step (II) of reacting the ethylene oxide-adduct with propylene oxide to obtain the alkylene oxide-adduct having a content of remaining propylene oxide of not more than 1000 mg/kg, and the step (III) of reacting the alkylene oxide-adduct with ethylene oxide to obtain the nonionic surfactant having each content of remaining ethylene oxide and remaining propylene oxide of not more than 5 mg/kg.
摘要:
The invention relates to a process for producing a phosphate, which includes reacting a phosphorus pentaoxide-containing phosphorylating agent with an organic hydroxy compound, the reaction being carried out at a reaction temperature of 50 to 70° C. until the degree (w) of remaining phosphorus pentaoxide undissolved in a reaction solution, defined by the following equation (1), is reduced to 15 wt % or less: W=[1−(AVt−AVp)/AV0]×100 (1) wherein W is the degree [wt %] of remaining phosphorus pentaoxide undissolved in a reaction solution; AVt is the acid value [mg KOH/g] of the reaction solution excluding undissolved phosphorus pentaoxide in an arbitrary time; AVp is the theoretical acid value [mg KOH/g] of the phosphorylating agent excluding undissolved phosphorus pentaoxide; and AV0 is the theoretical acid value [mg KOH/g] of phosphorus pentaoxide.