Abstract:
Disclosed is a vaporizer constituted of a dispersing section 8 and a vaporizing section 22. The dispersing section 8 comprises a gas introduction port 4 for introducing a carrier gas 3 under pressure into a gas passage, means for feeding raw material solutions 5a and 5b to the gas passage, and a gas outlet 7 for delivering the carrier gas containing the raw material solutions to the vaporizing section 22. The vaporizing section 22 comprises a vaporizing tube 20 having one end connected to a reaction tube of the MOCVD system and having the other end connected to the gas outlet 7 of the dispersing section 8, and heating means for heating the vaporizing tube 20. The vaporizing section 22 serves to heat and vaporize the raw material solution containing carrier gas 3 delivered from the dispersing section 8. The dispersing section 8 includes a dispersing section body 1 having a cylindrical hollow portion, and a rod 10 having an outer diameter smaller than the inner diameter of the cylindrical hollow portion. The rod 10 has a spiral groove 60 formed in the external periphery closer to the vaporizing section 22, the rod i0 being inserted into the cylindrical hollow portion.
Abstract:
A process for producing a lactic acid polymer of 15,000 to 50,000 in weight-average molecular weight, the content of polymeric materials having not more than about 5,000 in weight-average molecular weight therein being not more than about 5% by weight, characterized by hydrolyzing a high molecular weight lactic acid polymer, placing the resultant solution comprising the hydrolyzed product under a condition capable of precipitating the objective lactic acid polymer, separating the precipitated lactic acid polymer and collecting them. The lactic acid polymer is useful as a matrix for sustained-release preparations. The sustained-release microcapsule preparation encapsulating a physiologically active substance can fully prevent the initial excessive release of the physiologically active substance from the microcapsules and keep a stable release rate over a long period of time.
Abstract:
An encoding device in a data transmission/reception system includes a first convolutional encoder that encodes an outer code, an interleaver that permutes input data, a second convolutional encoder that encodes an inner code, and a muti-level modulation mapping circuit that performs signal-point mapping based on eight-phase shift keying. When the encoding device uses the second convolutional encoder having two or more memories, the first convolutional encoder uses, as the outer code, a code with a minimum output distance greater than the maximum input distance at which the minimum-distance inner code is generated.
Abstract:
A packing assist apparatus is provided which assures that articles to be packed can continuously be packed without close contact of the surface of a packing film with the surface of the articles and each packing operation can be performed at improved efficiency. A rotary member is disposed on a support column standing upright from a base board, an arm is fitted to the rotary member, and a holding frame having an opening portion through which the articles can pass is fitted to the arm. Putting means for putting a packing bag on the holding frame is arranged below the rotary member.
Abstract:
A sound absorbing material is interposed between an outer perforated plate and an inner plate to constitute a sound absorbing body, which has a bottom wall portion extending generally vertically, a hood portion laterally bulging from the top of the bottom wall portion to assume a semi-circular cross-section, and a top wall portion extending from the hood portion to assume a gentle convex cross-section. A cap is attached to the end face of the top wall portion, and a fixing member is attached to a lower portion of the bottom wall portion to constitute a sound absorbing device. The two sound absorbing devices having the identical structure are fixed to the outer surfaces of an upper portion of an upright sound insulation wall through the fixing members so as to assume a symmetrical fixing posture. The caps of the two sound absorbing devices are connected by a connecting member. Alternatively, a gap is formed between the caps and a space suitable for planting is defined by a top surface of the sound insulation wall and the two inner plates.
Abstract:
A package for batteries which comprises a header board and a heat-shrunk thermoplastic film holding the batteries relative to the header board. The header board has a vertical wall and a skirt integrally extending downwardly from the lower end of the vertical wall and covering a portion of the battery. The thermoplastic film covers the skirt and the batteries.
Abstract:
Included are an NC command input unit that receives an NC command serving as an NC command that enables processing independent of NC machining and that is independent of a model of an NC machine tool and an NC command; a machine information storage unit; a tool information storage unit; a command analysis unit that determines whether an NC command input to the NC command input unit is the NC command; a command creation unit that, creates a designated operation program that enables the NC machine tool to perform a series of operations corresponding to the NC command on the basis of the NC command, the model information, and the tool information; and a CNC control unit that controls the NC machine tool.
Abstract:
A method of manufacturing glass comprises a stirring step in which molten glass MG is stirred. The stirring step comprises a first stirring step and a second stirring step. In the first stirring step, the molten glass MG is stirred while being directed upward from below in a first stirred tank 100a. In the second stirring step, the molten glass MG stirred in the first stirring step is stirred while being directed downward from above in a second stirred tank 100b. The first stirred tank 100a has a first discharge pipe 110a capable of discharging the molten glass MG from the bottom of a first chamber 101a. The second stirred tank 100b has a second discharge pipe 110b capable of discharging the molten glass MG from the liquid level LL of the molten glass MG in a second chamber 101b.
Abstract:
Disclosed is a vaporizer constituted of a dispersing section 8 and a vaporizing section 22. The dispersing section 8 comprises a gas introduction port 4 for introducing a carrier gas 3 under pressure into a gas passage, means for feeding raw material solutions 5a and 5b to the gas passage, and a gas outlet 7 for delivering the carrier gas containing the raw material solutions to the vaporizing section 22. The vaporizing section 22 comprises a vaporizing tube 20 having one end connected to a reaction tube of the MOCVD system and having the other end connected to the gas outlet 7 of the dispersing section 8, and heating means for heating the vaporizing tube 20. The vaporizing section 22 serves to heat and vaporize the raw material solution containing carrier gas 3 delivered from the dispersing section 8. The dispersing section 8 includes a dispersing section body 1 having a cylindrical hollow portion, and a rod 10 having an outer diameter smaller than the inner diameter of the cylindrical hollow portion. The rod 10 has a spiral groove 60 formed in the external periphery closer to the vaporizing section 22, the rod 10 being inserted into the cylindrical hollow portion.