Abstract: The present invention discloses a NO.sub.x sensor consisting at least of a pair of the first and the second electrodes formed in touch with an oxygen conductive solid electrolyte; wherein at least the first elelctrode is composed of oxides of an element selected from 7a Group or 8 Group, especially from Mn, Fe, Co, and Ni or a substance containing said oxides or of hybrid oxides (including the one of oxygen deficiency expressed by ABO.sub.3, AB.sub.2 O.sub.4, A.sub.2 BO.sub.4 and ACBO.sub.4 including 7a Group and 8 Group. A NO.sub.x sensor acording to the present invention has a good sensitivity without being affected by the concentration of CO.sub.2 and detects NO.sub.x concentration in an exhaust gas at a temperature above 600.degree. C.

Abstract: The elastic modulus of a piezoelectric substance is controlled over a wide range using a simple method. The effective modulus (the real part of the elastic modulus) and the energy loss modulus (the imaginary part of the elastic modulus) of the piezoelectric substance are changed by installing electrodes on the surface of the piezoelectric substance and by connecting a mechanism consisting of one or more circuit elements to each of the electrodes.

Abstract: In an infrared radiation source containing hot-pressed molybdenum disilicide reinforced with silicon carbide whiskers as the illuminant thereof, terminal portions of the illuminant having a protective dense silica film of 5 to 20 .mu.m in thickness formed on the surface thereof which portions are to be heated at a temperature of 400 to 800.degree. C. are either set to have a current density of at most 12 A/mm.sup.2 or disposed in dry air having a relative humidity at 25.degree. C. of at most 30% (absolute humidity: 0.00588). As a result, the low-temperature oxidation phenomenon that would otherwise be developed in the terminal portions of the illuminant is suppressed. Thus, there can be obtained an infrared radiation source containing an illuminant made of molybdenum disilicide reinforced with silicon carbide whiskers and having a long serviceable life span.

Abstract: The present invention discloses oil solubilized solutions and foods containing phystosterols containing sitosterols with improved stability, for better absorption of those phytosterols into the body through their oil solubilization, as well as a process for their production; the oil solubilized solutions and foods of the invention are characterized by addition of vitamin E and emulsifiers to sitosterol-containing plant sterols to render the plant sterols soluble in oil, and particularly by extraction of the sitosterol from natural plant components, either alone or as a composition containing other phytosterol components, and by inclusion of vitamin E, emulsifiers which are liquid at room temperature, and glycerin esters of medium chain fatty acids of 6-12 carbon atoms; the process for producing oil solubilized plant sterols according to the invention is characterized by adding vitamin E and emulsifiers to phystosterols containing sitosterols to render the plant sterols soluble in oil.

Abstract: An impact and a vibration are applied to a portion of a piston ring on which a belt body is wound, and a vibration is also applied to the belt body. A position where a desired tension can be obtained is obtained by using a master gauge having an outer diameter equal to the inner diameter of a cylinder, and the like. When measuring the tension, a measuring mechanism is moved to this position. The frictional force between the piston ring and the belt body can be considerably decreased, and a closed gap need not be measured every time measurement is performed. Accordingly, the tension of the piston ring can be stably measured at high precision within a short period of time.

Abstract: There is provided a piston ring, which has improved wear resistance and seizure resistance, and which does not abrade the cylinder liner made of flaky-graphite cast iron having a hardness of from HRB 85-95.The composition:C: 3.0-3.5%;Si: 2.2-3.2%;Mn: 0.4-1.0%;P: not more than 0.2%;S: not more than 0.12%;Cr: 0.1-0.3%;V: 0.05-0.2%;Ni: 0.8-1.2%;Mo: 0.5-1.2%;Cu: 0.5-1.2%; andB: 0.05-0.1% are contained in the cast iron.The structure:from 2 to 20% by area of the undissolved carbides and fine graphite are dispersed in a matrix consisting of either tempered martensite or bainite or both.The hardness:HRC 32-45.

Abstract: The oil control ring 1 is provided to attach in an annular groove 10 formed in a piston 2 for internal combustion engine. The spacer expander 4 comprises a base 8, a plurality of supports 6 and a plurality of arms 7. The supports 6 and arms 7 are integrally formed with the base 8 to extend from an outer periphery 8a or inner periphery 8b of the base 8. The supports 6 resiliently urge a side rail 5 mounted on the space expander 4 toward an upper surface 14 of the annular groove 10 so that during upward stroke of the piston 2, the supports 6 can be resiliently deformed to form between the side rail 5 and upper surface 14 of the groove 10 a radial passage through which oil scraped by the side rail can be drained. Each arm 7 is provided with a lug 8 to resiliently urge the side rail 5 in radial and outward direction.

Abstract: A ceramic heating element includes a heat-generating portion 1 formed of a ceramic composite material with 3 to 40 vol. % of silicon carbide (SiC) whiskers and the balance substantially of molybdenum disilicide (MoSi.sub.2), and electrode portions 2a and 2b provided on both ends of the heat-generating portion 1.

Abstract: The invention provides a process for the preparation of a thermoplastic elastomeric resin composition comprising melt kneading(a) 100 parts by weight of a block copolymer consisting of at least two polymeric blocks (A) composed mainly of a vinyl aromatic compound and at least one polymeric block (B) composed mainly of a conjugated diene compound, and/or a hydrogenated block copolymer obtained by hydrogenating said block copolymer,(b) 20 to 300 parts by weight of a non-aromatic softening agent for rubber,(c) 1 to 150 parts by weight of a peroxide-crosslinking type olefinic resin and/or a copolymeric rubber containing said resin, and(d) 10 to 150 parts by weight of a peroxide-decomposing type olefinic resin and/or a copolymer containing said resin,characterized in that the process comprises a step of heat-processing component (a), component (b), at least a part of component (c), at least a part of component (d) and at least a part of 1.

Abstract: An exhaust gas cleaner for removing nitrogen oxides by reduction from an exhaust gas containing nitrogen oxides, sulfur oxides, moisture, unburned or partially burned components and oxygen, a content of oxygen in the exhaust gas being larger than a stoichiometric amount required for completely oxidizing or burning the unburned or partially burned components, wherein the exhaust gas cleaner consists essentially of a first catalyst consisting essentially of a first porous inorganic oxide carrying at least one silver component, and at least one transition metal component selected from the group consisting of copper, iron, cobalt, nickel and compounds thereof; and a second catalyst selected from the group consisting of (a) a catalyst consisting essentially of a porous titania, (b) a catalyst consisting essentially of a second porous inorganic oxide carrying a titanium component, (c) a catalyst consisting essentially of the second porous inorganic oxide carrying at least one first component selected from the group

Abstract: The invention provides a process for the preparation of a thermoplastic elastomeric resin composition comprising (a) 100 parts by weight of a block copolymer consisting of at least two polymeric blocks (A) composed of a vinyl aromatic compound and at least one polymeric block (B) composed of a conjugated diene compound, or a hydrogenated block copolymer, (b) 20 to 300 parts by weight of a non-aromatic softening agent for rubber, (c) 1 to 100 parts by weight of a peroxide-crosslinking type olefinic resin or a copolymeric rubber containing said resin, and (d) 10 to 150 parts by weight of a peroxide-decomposition type olefinic resin or a copolymer containing said resin, characterized in that the process comprises a step of heat-processing component (a), component (b), at least a part of component (c) and a part of component (d) in the presence of an organic peroxide to cause crosslinking, and a subsequent step of blending these with the remaining part of component (d) and, if any, the remaining part of component

Abstract: There is provided a method of three-dimensionally cutting a mold including the steps, in sequence, of (a) rotating a single ball end mill at a rate in the range of 50,000 rpm to 200,000 rpm, the ball end mill being made of material having high thermal resistance, (b) driving the ball end mill in horizontal, reciprocating movement at a rate in the range of 10 m/min to 100 m/min, and driving the ball end mill in transverse movement at a predetermined depth of cut in a direction perpendicular to a direction in which the ball end mill is reciprocated, at opposite ends of the reciprocating movement to cut a workpiece in a surface thereof at a common depth of cut, and (c) vertically feeding the ball end mill at a predetermined depth of cut. This method makes it possible to significantly increase a rotation speed and a feeding speed of a cutting tool to thereby remarkably reduce time necessary for cutting a mold.

Abstract: A motive power generating apparatus utilizing magnetic flux from permanent magnets providing higher efficiency and torque is disclosed. An apparatus according to one embodiment of the present invention comprises a pair of disc-shaped rotors 10 and 20, a pair of ring-shaped stators 30 and 40, a rotational shaft 50, a permanent magnet 60, and a current controller 80. Each rotor 10, 20 is a disc-shaped member formed of magnetic material. Each stator 30, 40 further includes twelve electromagnets 32, 42 provided along the outer periphery of each disc-shaped rotor 10, 20 at intervals of thirty degrees. Each electromagnet 32, 42 has an armature 32a, 42a and a winding 32b, 42b. Each rotor 10, 20 contains six sets of protruding poles 10a, 20a disposed around the outer periphery thereof at intervals of sixty degrees. Each rotor 10, 20 is magnetized in opposite polarities by the permanent magnet 60 disposed therebetween.

Abstract: A compact stacked mold is provided by reducing the sand-metal ratio. Cavities (11, 12) are formed on upper and lower sides (13, 14) of a chill plate (10) corresponding to one half of a cam profile, and the upper and lower sides (13, 14) are aligned with parting surfaces of a mold (15).

Abstract: In a shoe 5 for a swash plate compressor, the conical tapered surface 13 is formed between the spherical surface 10 and the rounded edge 14 to converge toward the spherical surface 10 inside an imaginary spherical surface 15 including the spherical surface 10. The conical tapered surface 13 forms a relatively large arcuate gap 23 between the hemispherical concavity 7 and the conical tapered surface 13. The arcuate gap 23 serves to reserve necessary amount of lubricant oil which may be supplied to sliding portions between the spherical surface 10 of the convex surface 11 and hemispherical concavity 7 of the piston 2. In addition, upon manufacture of the shoe 5, it can easily be removed from a metallic mold 52 due to existence of the arcuate gap 23 which prevents tight fit of the shoe 5 in the mold 52.

Abstract: The present invention discloses a NOx sensor consisting at least of a pair of the first and the second electrodes formed in touch with an ion conductive solid electrolyte; wherein at least the first electrode is selected from hybrid oxides having perovskite structure expressed by MSnO.sub.3 (M is at least an element selected from Mg, Ca, Sr, Ba, Mn, Co, Ni, Zn and Cd, hybrid oxides having pseudo-perovskite structure expressed by M.sub.2 SnO.sub.4 (M is at least an element selected from Mg, Ca, Sr, Ba, Mn, Co, Zn and Cd) or a substance containing said hybrid oxides and the second electrode is selected from a noble metal or a electro conductive ceramics which does not have electro conductivity in the atmosphere of NOx and the concentration of NOx in the test gas is detected by the change of the electromotive force between the first and second electrodes.

Abstract: A wave absorber is provided which has a wave absorption characteristic of 20 dB in a frequency band of 1 GHz to 20 GHz, is nonflammable, compact and lightweight, and has excellent durability. A porous ferrite is produced as the base material for which is an Ni--Zn type ferrite which has an excellent wave absorption characteristic in the high frequency range, and this serves as a wave absorber formed in the shape of a pyramid or triangular prism.

Abstract: An exhaust gas cleaner consisting essentially of a first catalyst consisting essentially of a first porous inorganic oxide supporting 1.6-8.7 weight percent of an Ag component, on a metal basis, and a second catalyst consisting essentially of a second porous inorganic oxide supporting 0.1-3.8 weight percent of a Pt component and 1-9.9 weight percent of a W component, each weight percent on a metal basis. The Ag component includes Ag or a compound thereof. The Pt component includes Pt, Pd, Ru, Rh, Ir, and Au. The W component includes W, V, Mn, Mo, Nb, and Ta.

Abstract: The present invention is relating to milk-constituent-containing beverages which are preserved and distributed in metal cans, and characterized that a milk-constituent-containing beverage, which is provided with growth inhibition effects against heat-resistant spore-forming bacteria and in which such problems as coagulation, oiling off, feathering, precipitation, neck ring, etc. of the milk constituents are suppressed, said milk-constituent-containing beverage containing (A) diglycerol monoesters of fatty acids and (B) at least one emulsifier such as citric acid esters of mono- and diglycerides of fatty acids, guccinic acid esters of mono- and diglycerides of fatty acids, diacetyltartaric acid esters of mono- and diglycerides of fatty acids, polyglycerin monoesters of fatty acids with an HLB of 3 to 16, and sucrose esters of fatty acids with an HLB of 3 to 16, said beverage being characterized in that 70 wt.

Abstract: An exhaust gas cleaner is constituted of an Ag catalyst carrying an Ag component and a base metal catalyst carrying a Cu component and optionally W, V, Mo components, and a noble metal catalyst carrying a noble metal component. The base metal catalyst and the noble metal catalyst may be physically mixed to form a mixed catalyst. Another exhaust gas cleaner is constituted of the first Ag catalyst carrying an Ag component, the second Ag catalyst carrying an Ag component, a base metal catalyst carrying a Cu component and optionally W, V, Mo components, and a noble metal catalyst carrying a noble metal component. The second Ag catalyst carries the Ag component in an amount larger than that of the first Ag catalyst. The noble metal catalyst is physically mixed with the base metal catalyst to form a mixed catalyst. The exhaust gas cleaner can effectively remove nitrogen oxides in a wide temperature range of exhaust gas.