摘要:
This invention includes a current output sensor, and a current AD conversion means which is connected to the output side of the current output sensor and has a current mirror circuit arranged on the input side of a comparator in order to directly A/D-convert an output from the current output sensor. A signal can be stably processed with a small circuit scale and low current consumption.
摘要:
A measuring chip for an optical analyzer includes a translucent or transparent substrate 1, and a sample solution chamber S formed on a sulface of the translucent or transparent substrate 1. The sample solution chamber S has an inlet S.sub.1 for introducing a sample solution to be analyzed, and an outlet S.sub.2 for discharging the analyzed sample solution. The sample solution chamber S is formed so as to be filled with the sample solution between the inlet S.sub.1 and the vicinity of the outlet S.sub.2 by the capillary phenomenon. On the translucent or transparent substrate 1, an analyzing region 10 is formed by stacking a metal thin film 2 and an immobilizing film 3 for immobilizing a physiologically active substance 4. On the analyzing region 10, the sample solution chamber S is formed to obtain a measuring chip for an optical analyzer particularly utilizing the surface plasmon resonance (SPR). Thus. it, is possible to obtain a measuring chip for an optical analyzer, which can be easily handled and which can carry out an analysis using a small quantity of sample solution.
摘要:
A pager comprises a receiver for receiving an image designating code together with a message, a display section, a memory for storing a plurality of images, and a CPU for, based on the image designating code received by the receiver, selecting an associated image and displaying the image together with the message on the display section. When a ringing signal transmitted from a base station is directed to this pager, the pager acquires a subsequent message and displays the associated image together with the message when the message contains an image designating code.
摘要:
An ultraviolet-curing liquid undercoating composition for use in metallizing FRP, which is a one-component type, has an unlimited pot life, and is excellent in adhesion and heat resistance. The composition comprises 20 to 80 parts by weight of a compound(s) containing at least two (meth)acryloyl groups in its molecule, 80 to 20 parts by weight of oil-modified alkyd resin(s), and 2 to 15 parts by weight of a sensitizer, optionally further 5 to 20 parts by weight of an amino resin based on 100 parts by weight in total of the above compound and the above alkyd resin(s). It is suited for the undercoating of an automotive reflector.
摘要:
Proposed is an efficient method for the preparation of vitreous hollow microspheres from particles of a vitreous volcanic deposit by a heat treatment to effect expansion of the particles by foaming. The inventive method comprises a step, prior to the heat treatment for expansion of the particles, in which the starting particles are dispersed in an aqueous medium containing aluminum sulfate and urea each in a specified concentration followed by a heating treatment of the dispersion so as to deposit a coating layer of aluminum hydroxide on the particle surface so that the efficiency of foaming can be greatly improved without the disadvantage of particle agglomeration.
摘要:
A new prepreg material having good tack drape properties and feasible out-time and articles derived therefrom as well as processes for preparation these products are disclosed. The prepreg is prepared by impregnating inorganic fibers with a compostion comprising:(A) fine powder of a metal oxide or oxides having an average particle diameter of not larger than 1 .mu.m,(B) a soluble siloxane polymer having double chain structure,(C) a trifunctional silane compound having at least one ethylenically unsaturated double bond in the molecule thereof,(D) a organic peroxide,(E) a radically polymerizable monomer having at least two ethylenically unsaturated double bonds; and heating the impregnated fibers.
摘要:
A driver IC for driving a light source comprises means for generating a constant current, switching means for switching the constant current supplied to the light source, first input terminal for inputting a first signal to modulate a light emitted by the light source, said switching means performing a switching operation in accordance with the first signal, and second input terminal for inputting a second signal so as to supply the constant current to the light source, irrespective of the first signal.
摘要:
A magnetic metal powder, having a large specific surface are, a high coercive force, a high dispersibility and an excellent corrosion resistance, is produced by converting an aciculate goethite having a silicon and/or aluminum compound layer formed thereon or an aciculate goethite modified with a metal other than iron into magnetite, forming thereon a nonferrous transition metal compound layer, further forming thereon a silicon or aluminum compound layer, and reducing the coated magnetite to prepare a magnetic metal powder mainly composed of iron and having on the surface thereof a layer containing a nonferrous transition metal element, characterized in that the formation of the silicon and/or aluminum compound layer on the aciculate goethite and/or the formation of the nonferrous transition metal layer on the magnetite are conducted while conducting dispersion by means of a disperser.
摘要:
A control system for an infinitely variable transmission has a transmission ratio control valve having a spool for controlling oil supplied to a cylinder of a drive pulley to change the transmission ratio. The transmission ratio control valve has chambers at both ends of the spool. By controlling the pressure of oil supplied to the chambers in accordance with the difference between a desired transmission ratio and the actual transmission ratio, the spool is shifted, so that the speed of changing the transmission ratio is controlled.
摘要:
A manufacturing method for cellulose ether having a high degree of substitution characterized in that an etherifying agent represented by a general formula RCH.sub.2 X (where R is aromatic group, heterocyclic group, vinyl group or ethynyl group or the same group substituted and X is chlorine or bromine) is reacted with a uniform solution of cellulose acetate having a degree of substitution of 2.0 and over in an organic solvent in the presence of a base to manufacture a highly substituted cellulose ether having a degree of substitution of 2.0 and over per anhydrous glucose unit by a one stage reaction at a good yield.As a general method for manufacturing cellulose ether, a method for reacting an etherifying agent with alkali cellulose is now in use. For the general method, several improved methods have been proposed. However, it is difficult to manufacture cellulose ether having a degree of substitution of 2.5 and over by a one stage reaction using the general method. As manufacturing methods for cellulose ether other than the general method, a method for using a solvent-soluble cellulose derivative as the raw material and a method for using a special solvent in which cellulose is soluble were proposed. However, the former had a defect of a low yield and the latter had a defect of too long a reaction time.