Abstract:
Mono- or polyenic carboxylic acid derived compounds of the formula (1-I) or a physiologically acceptable salt thereof: Z—(CR3═CR2)n—COOR1 (1-I) wherein R1 is hydrogen or a carboxyl-protecting group; R2 and R3 are each independently hydrogen, halogen, linear lower alkyl, branched lower alkyl linear lower alkoxy, branched lower alkoxy or aryl, m is 1 to 3 and Z is a group or their salts have the potent ability to bind to retinoic acid receptors thus useful in treating psoriasis and rheumatoid arthritis.
Abstract:
Compounds of the formula ##STR1## and compounds of the formula ##STR2## or their salts have the potent ability to bind to retinoic acid receptors thus useful in treating psoriasis and rheumatoid arthritis.
Abstract:
Described is a heterocycle-containing carboxylic acid derivative represented by the following formula (I): ##STR1## wherein A represents, for example, a heteroaryl group which contains at least one nitrogen atom and may have a substituent, B represents, for example, a heteroarylene group, a --CONH-- group or a group represented by the formula --CR.sup.6 .dbd.CR.sup.7 -- in which R.sup.6 and R.sup.7 represents H, a lower alkyl group or the like, D represents an arylene group, a heteroarylene group or the like, n1 stands for 0 or 1, M represents, for example, a hydroxyl group or a lower alkoxy group; or a physiologically acceptable salt thereof. As a retinoic-related compound replacing retinoic acid, it permits the provision of a preventive and/or therapeutic for various diseases.
Abstract:
A phase difference measuring apparatus for precisely measuring a phase difference between two input signals having the same frequency sent from, for example, a Coriolis type mass flowmeter. A differential amplifier in the apparatus provides the sum or difference of the two input signals and a multiplexor sequentially selects and outputs to an A/D converter the two input signals and the output of the differential amplifier. The A/D converter converts the output of the multiplexor into digital data and a digital signal processor or a microcomputer calculates the phase difference between the two input signals based on the converted digital data. The apparatus may further comprise a function that an error caused by the difference of the transfer characteristics of a filter and the A/D converter is compensated using a reference signal which is selected from the two input signals.
Abstract:
A phase difference measuring apparatus for accurately measuring the phase difference (fine time difference) of two signals with the same frequency with a reduced number of bits for A/D conversion is disclosed. In addition to output signals of an upstream side pickup and a downstream side pickup of a mass flowmeter, an output signal of the upstream side pickup or the downstream side pickup is supplied to a comparator, a PLL circuit, an antialiase filter, a sample and hold circuit, and an A/D converter. These circuits quantize these signals and send the quantized signals to a band pass filter. The band pass filter extracts a predetermined signal component and outputs it to a DFT. The DFT performs complex Fourier transformation on the input signal. Thus, the phase difference between two signals with the same frequency (such as an upstream side pickup signal and a downstream side pickup signal) can be accurately detected with a reduced number of bits for each of the A/D converters.
Abstract:
An aminobenzoic acid derivative represented by the following general formulas (I), (I-2) or (I-3), or a pharmacologically acceptable salt thereof, which exhibits a serotonin antagonism and an acetylcholine release accelerating activity at a well-balanced activity ratio and which is efficacious as a drug for patients with gastrointestinal unindentified complaints: ##STR1## wherein R.sup.1 represents a group such as an alkynyl or cyanoalkyl group; R.sup.2 represents a group such as an amino or acylamino group; R.sup.3 represents a halogen atom; X represents --O-- or --NH--; and A represents an oxygen or sulfur atom.
Abstract:
A process for producing a flexible or rigid polyurethane foam is provided in which a polyol and a polyisocyante are reacted in the presence of an amine catalyst, a blowing agent, and a foam stabilizer, the amine catalyst comprising at least one amine compound represented by General Formula (1) below: ##STR1## where R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are respectively an alkyl group of 1 to 6 carbons independently; n is an integer of 0 or 1; and A is an alkyl group of 11 to 14 carbons when n is 0, or an alkylene group of 10 to 15 carbons when n is 1. The amine catalyst has low odor and low volatility, and gives high curing rate, and excellent moldability with a formulation of reduced fluorocarbon and increased water as the blowing agent.
Abstract:
According to the printed-circuit board of the preset invention, the circuit modification unit 120 adds a noise reduction component, based on circuit board information inputted to the design information input unit 106. Then, the layout unit 132 sets a layout after the design rule generation unit 133 generates a design rule. The rated value modification unit 124 determines rated values of noise reduction components in accordance with the layout. Thus, design rule generation, noise reduction component addition, and rated value determination are automatically performed to satisfy the electric characteristics of evaluation targets. Consequently, interactive process in designing is reduced and the efficiency of designing can be realized.
Abstract:
A triazolo-1,4-di-azepine compound of the below given formula and a pharmacologically acceptable salt thereof are disclosed and useful in the pharmaceutical field, especially to allergic diseases. ##STR1## in which R1 and R2 are hydrogen or an alkyl, R3 is hydrogen or a halogen, R4 is hydrogen or an alkyl, X is --OOO--, --NHCO--, --CO-- or others and Y is a cycloalkyl, a cycloalkylalkyl, an alkynyl or others.
Abstract:
This invention rapidly and surely joins sheet bars to each other for continuously hot rolling in a high productivity by a combination of a treatment that the front end portion and the back end portion of these sheet bars are contacted and heated at such a contact region by applying alternating magnetic fields so as to pass in a thickness direction of the sheet bar with a treatment of pushing at least one of these sheet bars.