Abstract: The present invention provides a process for producing pyridine bases which comprises reacting an aliphatic aldehyde and/or a ketone with ammonia in the presence of a catalyst in gaseous phase, said catalyst comprising a zeolite containing (a) an element belonging to the platinum group and (b) at least one element selected from the group consisting of the elements of Groups IIB, IIIA and IVA of the periodic table and the having an atomic ratio of Si to elements consisting of Al, B, Fe and/or Ga of about 12 to about 1,000 and a constraint indedx of about 0.8 to about 12.

Abstract: Carbonaceous materials deposited on solid catalysts and produced, for example, in Beckmann rearrangement in a gaseous phase are burned off by effecting the treatment in the presence of alcohols such as methanol or ethanol together with molecular oxygen-containing gas in order to regenerate the catalyst activity.

Abstract: An image processing apparatus furnished with an overhead projector has an image projecting function and an image-forming function. The image processing apparatus is designed to detect the movement of an original support table or a reflection-type focusing plate during projecting of an original. The result is that the original support table is free from being heated by the focusing plate and also that the focusing plate is free from any deviation of its axis of light, thus preventing the reflected light from striking on the eyes of the operator.

Abstract: An image processing apparatus comprising: an input unit for inputting an image of an initial original; a support table on which the initial original is to be set, the support table being movably mounted along the input unit; a reflection-type focusing plate on which an OHP (overhead projector). original is to be set, the focusing plate being disposed along side the input unit; an image forming unit disposed under the focusing plate for forming on a sheet an image inputted from the input unit to provide an OHP original; and a projecting unit disposed above the focusing plate for projecting an image of the OHP original set on focusing plate.

Abstract: Process for producing pyridine bases by reacting an aliphatic aldehyde and/or ketone with ammonia in gaseous phase in the presence of a catalyst, characterized by using a catalyst which is obtained by modifying a zeolite having an atomic ratio of Si to Al, Fe and/or Ga of 12 to 1,000 and a constraint index of about 0.8 to about 12 with at least one metal ion and/or metal compound selected from the group consisting of thallium, lead and cobalt.

Abstract: An ion implant apparatus which forms ions from an ion source into an ion beam to implant the ions into a target to be ion-implanted through an ion beam introduction tube. The ion implant apparatus comprises: radiation means for radiating an electron beam, the radiating means fixed on the ion beam introduction tube; and a target for being radiated by an electron beam, said target reflecting the electron beam to generate a reflectance beam, the electron beam causing a secondary electron beam to be emitted from the electron beam target, the electron beam target being formed so as to prevent the reflectance beam and the secondary electron beam from being directly radiated on the target to be ion-implanted. The apparatus can keep high energy electrons from the surface of a wafer thereby to prevent the wafer from being charged negatively, and can trap the high energy electrons in the measuring system thereby to decrease errors in measuring a number of dopant atoms.

Abstract: A heteroaromatic nitrile is prepared in a high selectivity and yield by catalytically reacting an alkyl-substituted heteroaromatic compound with molecular oxygen and ammonia in a molar ratio of oxygen to ammonia of not larger than 1.6:1 in a gaseous phase in the presence of a catalyst comprising a vanadium-phosphorus oxide of the formula:VP.sub.x Sb.sub.y O.sub.z (I)wherein x, y and z represent atomic ratios of phosphorus, antimony and oxygen to vanadium, respectively, and x is from 0.1 to 5, y is 0 to 8 and z is defined from the valencies of other elements.

Abstract: A substance TH69E having the following characteristics: (a) elementary analysis: C: 24.25%, H: 4.46% and N: 6.55%; (b) molecular weight: about 60,000.+-.15,000 (Biogel P-Series Column); (c) color: white amorphous powder; (d) decomposition point: 180.degree. C. (as determined by a capillary method with use of Silicone Oil WF-30--the color changes to brown); (e) ultraviolet absorption spectrum: as shown in FIG. 1 of the drawings; (f) infrared absorption spectrum: as shown in FIG. 2 of the drawings; (g) pH: 6.7 to 7.1 in an aqueous solution; (h) solubility: soluble in water, and insoluble in ethanol, acetone, n-hexane, n-butanol and phenol; and (i) color reactions: phenol-sulfuric acid reaction, anthrone reaction, Molisch reaction, orcinol-hydrochloric acid reaction, Ninhydrin reaction being positive, and Elson-Morgan's reaction being negative.

Abstract: This invention relates to a method of setting a pile without causing any noise or vibration. A hollow pile is erected along a leader fixed on the ground, a screw auger is inserted through the hollow center of the pile, the screw auger is hung on the leader in such a manner that it can freely move up and down and freely rotate, and the pile is sunk by its own weight as the soil below the bottom of the pile is excavated and the excavated soil is carried above the ground. The present invention further relates to an apparatus for executing the above method. The lower part of the screw auger is constructed in such a manner that it is divided into two parts, inner tube and outer tube, and both tubes can rotate through a certain angle and move up and down in a certain range relatively to each other.

Abstract: The present invention relates to a process of setting a concrete pile without noise or vibration which is thereby effective to decrease city noises. A concrete pile is sunk into a leading hole substantially concurrently with the progress of the excavation thereof. After the pile has been sunk through a desired distance, another supporting hole is excavated below the pile. A solidifying material, such as cement milk, mortar, or cement concrete including a cement expansion agent of calcium sulfoaluminate system or lime system, is poured into the supporting hole. The solidifying material is expanded within the supporting hole and permeates into the circumferential wall thereof, which is loosened by the excavation, so as to retighten the wall. Therefore, sufficient supporting force can be obtained.

Abstract: This invention relates to connected parts of a long concrete pipe made by connectng some short concrete poles or concrete piles which are separately manufactured. Especially in case that a bending moment acts on an upper part of a concrete pipe having connected parts, in order to increase the strength of the connected part against the bending moment an annular concave part is made on the outer periphery of the joined part of end plates which are fixed to reinforcements at the ends of concrete pipes, and a reinforcing split ring is inserted into the said concave part and is welded to the said end plates.