Abstract: A gas sensor including an element 4 for measuring the concentration of a gas to be detected which is contained in a gas under measurement; a protector 2 provided to cover a tip end of the element 4 in the axial direction; and a protection cap 1 removably attached to the gas sensor. The protection cap 1 includes a tubular portion 106 which surrounds a side surface 202 of the protector 2, support portions 102 which project from an inner surface 161 of the tubular portion 106 and reach the side surface 202 of the protector 2 without axially partitioning the space between the inner surface 161 of the tubular portion 106 and the side surface 202 of the protector 2, and an air-outlet hole 103 for establishing communication between the interior and exterior of the protection cap 1.

Abstract: The present invention relates to indole derivatives represented by the general formula: (wherein R represents an ethyl group or a 2,2,2-trifluoroethyl group; Y represents a hydroxy group or a pivaloyloxy group; and the carbon atom marked with (R) represents a carbon atom in (R) configuration) and pharmaceutically acceptable salts thereof, which have potent and prolonged reducing effects on intraocular pressure and are useful as agents for lowering intraocular pressure.

Abstract: A method for decomposing and eliminating dioxins contained in flyash at a lower temperature and in a shorter time is provided, in which dioxides or dioxins-containing materials are brought into contact with amine compounds and/or ammonium compounds at a temperature lower than 300 ° C. Chlorine in dioxines reacts with amine compounds and/or ammonium compounds and thus the dechlorination or replacement reaction of dioxin quickly proceeds under lower temperature. The method makes it possible to decompose dioxins under low temperature range in which dioxins have been thought to be undecomposable.

Abstract: A polypropylene resin composition having the following conditions (a) and (b):(a) the resin composition can be drawn such that a diameter d of a strand obtained when the resin composition is extruded from a circular die having an inside diameter D isd.ltoreq.0.25.times.D, and(b) the ratio of the maximum value of elongational viscosity to the maximum value of shear viscosity, measured at the same temperature and the same rate of strain is:elongetional viscosity/shear viscosity.gtoreq.5.The polypropylene resin composition is suitable for processing such as blow molding, vacuum forming, film extrusion, extrusion coating, spinning, foam processing, etc.

Abstract: The present invention relates to an agent inhibiting progress of pterygium and postoperative recurrence of the same. N-(3,4-Dimethoxycinnamoyl)anthranilic acid represented by the formula: ##STR1## or a pharmaceutically acceptable salt thereof has an inhibitory activity on proliferation of pterygium tissues, and a pharmaceutical composition comprising as the active ingredient the same is useful as an agent inhibiting progress of pterygium and postoperative recurrence of the same.

Abstract: A method for decomposing and eliminating dioxins contained in flyash at a lower temperature and in a shorter time is provided, in which dioxins or dioxins-containing materials are brought into contact with amine compounds and/or ammonium compounds at a temperature lower than 300.degree. C. Chlorine in dioxins reacts with amine compounds and/or ammonium compounds and thus the dechlorination or replacement reaction of dioxin quickly proceeds under lower temperature. The method makes it possible to decompose dioxins under low temperature range in which dioxins have been thought to be undecomposable.

Abstract: A shaft-like heating member is inserted into and fixed to an oxygen sensing element of a hollowed shaft-like member, together with of a terminal member. A heating portion is located at a portion of the heating member closer to the extreme end thereof. The surface of the heating portion is resiliently pressed on the element inner wall in a side-abutting fashion. In this case, a guide mainly gives rise to the elastic force. With such a side-abutting structure, heat generated in the heating portion is directly transferred to the oxygen sensing element, and heats it. Heat radiated from a portion in the vicinity of its contact position additively heats the oxygen sensing element. Temperature of the oxygen sensor quickly reaches an activation temperature.

Abstract: A polypropylene resin composition comprising from 5 to 99.9 wt % of a polypropylene resin (A) and from 95 to 0.1 wt % of an ethylene/.alpha.-olefin copolymer elastomer (B) satisfying the following conditions (a) to (d):(a) the .alpha.-olefin has a carbon number of from 4 to 20,(b) the .alpha.-olefin content is larger than 65 wt % and at most 95 wt %,(c) the density at 23.degree. C. is less than 0.88 g/cm.sup.3, and(d) no peak of crystal fusion is observed by a DSC method.

Abstract: A step motor controller including a sampling program for sampling, at predetermined intervals, input target values that represent a position of the step motor. The difference between the sampled target value and a rotational position of the step motor is obtained. A step motor accelerating and decelerating program accelerates the step motor upon finding the difference between the sampled target value and the current position of the step motor is greater than a set value. When the difference is less than the set value the step motor is decelerated. The predetermined sampling time does not correspond to the natural frequency of the step motor system or to a period corresponding to a fractional multiple of the natural frequency.

Abstract: A fillet welding apparatus for fillet welding on heads of valves for internal combustion engines, such apparatus including a valve blank stock storage station, a welding torch for fillet welding on valve heads of each valve blank, and feed apparatus for engaging and feeding valve blanks from the stock storage station to the welding torch and from the fillet welding torch to a product valve storage station, the feed apparatus including means for counting and feeding selected of the counted valves to a testing station.

Abstract: A hard faced apparatus for applying hard facing to valves including a welding torch for performing hard facing on a valve head of each of valve blanks to be hard faced, a valve blank holding member for holding the valve blank in an oblique position such that the valve head of the valve blank faces the welding torch, and for rotating the valve blank about its axis, and valve transfer apparatus for transferring the valve blank to the valve blank holding member. The valve blank holding member includes valve attaching/positioning apparatus for attaching the valve blank while positioning an axis of the valve blank to be substantially aligned with an axis rotation of the valve blank holding member.

Abstract: A throttle valve controller includes a valve driving device for activating a throttle valve; which is disposed along a air-intake passage. A manipulation detector detects the amount of manipulation of an acceleration pedal by a driver. A drive controller regulates the valve driving device. The throttle valve controller further includes a wheel acceleration detector for detecting the actual rotational angular acceleration of the driving wheels, and a target value calculator for calculating a target value for the rotational angular acceleration of the driving wheels, as a function of the detected manipulation amount The drive controller controls the valve driving device in such a way that the actual rotational angular acceleration of the driving wheels is set equal to the target acceleration value from the target value calculator.

Abstract: A controller for a step motor which permits the actual step number of the step motor to properly follow up the target step number may be varied with time. The controller temporarily determines a duration shorter than an actually derived duration, and checks the target step number again when the temporarily determined duration has elapsed. If the target step number has not changed, the actually derived duration is considered as a finally determined duration, while, if the target step number has changed, the duration of energization is re-derived from the changed target step number.

Abstract: A process for preparing polyarylene sulfides which comprises providing at least one cyclic arylene sulfide oligomer of the formula ##STR1## wherein S represents a sulfur atom, groups Ar, which may be the same or different, represent each an arylene radical having 6-24 carbon atoms, groups R, which may be the same or different, represent each a C.sub.1 -C.sub.12 alkyl radical, or a C.sub.1 -C.sub.12 alkoxy radical, or a primary or secondary amino group, n is an integer of from 2 to 50, and m is an integer of from 0 to 15, and heating said cyclic oligomer I in the presence of a ring opening polymerization catalyst so as to form polyarylene sulfide. The process produces polyarylene sulfides improved in chemical, physical and mechanical properties.

Abstract: A heating apparatus for use in heating a substrate comprises an electric heater and a power supply part. The electric heater is made up of an approximately columnar body which is made of graphite, and this columnar body has a top with a flat surface part on which the substrate is placed and a pair of legs which extend downwardly from the flat surface part. The legs are defined by an opening in the columnar body. The power supplying part is coupled to the electric heater and supplies a voltage across the legs of the columnar body so that a current flows from one leg to the other, thereby generating heat at the flat surface part to heat the substrate.

Abstract: A system clarifies the damaged state of a plant, and estimates the life expectancy of the plant so as to administer the integrity of the plant. The system includes an apparatus for estimating the life expectancy of each of various pieces of component constituting the plant, a data base controlling apparatus, an apparatus for estimating the life expectancy of the entire plant, and a plant life extension and evaluation apparatus. The system is capable of making a specific proposal of a life extension plan which is necessary to and effective for the extension of the entire plant, and which is proposed including economical evaluation, thereby facilitating the conservation of the integrity of the plant, and also facilitating the maintenance and control thereof.

Abstract: In a vehicle height control system comprising four actuators for controlling vertical positions of a pair of front wheels and a pair of rear wheels relative to a vehicle body and three vehicle height sensors for detecting the vertical positions relative to the vehicle body of three of the pairs of front and rear wheels except a fourth one of the pairs of front and rear wheels, a naught operation exclusion device is provided to prevent vehicle height control system to operate, the naught operation exclusion device detecting running on a rock or the like or falling in a hole or the like of the fourth wheel or jacking up of the vehicle body at the fourth wheel based upon a comparison of the vertical position relative to the vehicle body of a wheel diagonal to the fourth wheel detected by the vehicle height sensor therefor with similar relative vertical positions detected by the vehicle height sensors for the other two wheels located on opposite sides of a diagonal line connecting the fourth wheel and the one whe

Abstract: This invention provides novel 5H-pyrazolo[4,3-a]-quinolizin-5-one compounds which exhibit a selective inhibitory activity against IgE-antibody formation, and have utility for treatment of allergic diseases associated with IgE formation in mammals, such as allergic bronchial asthma, allergic rhinitis, atopic dermaties, hypersensitiveness, and the like.

Abstract: This invention provides novel 4H-quinolizin-4-one compounds which exhibit a selective inhibitory activity against IgE-antibody formation, and have utility for treatment of diseases associated with IgE formation in mammals, such as allergic bronchial asthma, allergic rhinitis, atopic dermatitis, hypersensitiveness, and the like.

Abstract: This invention provides novel 4H-quinolizin-4-one compounds which exhibit a selective inhibitory activity against IgE-antibody formation, and have utility for treatment of diseases associated with IgE formation in mammals, such as allergic bronchial asthma, allergic rhinitis, atopic dermatitis, hypersensitiveness, and the like.