Abstract: Provided are a spinning apparatus capable of stably spinning fibers having a small fiber diameter with a high productivity, an apparatus comprising the same for manufacturing a nonwoven fabric, a process for manufacturing a nonwoven fabric using the nonwoven fabric manufacturing apparatus, and a nonwoven fabric produced by the process. The spinning apparatus of the present invention comprises one or more exits for extruding liquid, which are capable of extruding a spinning liquid, and one or more exits for ejecting gas, which extend linearly and are located upstream of each of the exits for extruding liquid and which are capable of ejecting a gas, wherein a shearing force by the gas and its accompanying airstream can be single-linearly exerted on the spinning liquid extruded. The apparatus of the present invention for manufacturing a nonwoven fabric comprises a fibers collection means as well as the spinning apparatus.

Abstract: A spinning apparatus comprising one or more exits for extruding liquid, and an exit for ejecting gas, located upstream of the exits for extruding liquid, wherein the apparatus comprises a columnar hollow for liquid, in which the exit for extruding liquid forms one end of the columnar hollow; the apparatus comprises a columnar hollow for gas having the exit for ejecting gas; a virtual column for liquid, extended from the columnar hollow for liquid, is adjacent to a virtual column for gas, extended from the columnar hollow for gas; the central axis of the columnar hollow for liquid is parallel to the central axis of the columnar hollow for gas; and there exists only one straight line having the shortest distance between an outer boundary of the cross-section of the columnar hollow for gas and an outer boundary of the cross-section of the columnar hollow for liquid, is disclosed.

Abstract: A method of producing fibrous aggregate, comprising: a supplying and discharging step in which a fiberizable liquid is supplied from a means for storing a fiberizable liquid to a means for discharging a fiberizable liquid via a supplying pipe, and the fiberizable liquid is discharged from the discharging means; and a fibers-collecting step in which fibers drawn and fiberized by applying an electrical field to the discharged fiberizable liquid are accumulated directly on a collecting surface of a collector while the collecting surface is unidirectionally conveyed to form the fibrous aggregate; wherein the discharging means is carried on a support capable of moving along an endless track capable of rotationally travelling between a pair of rotating shafts, and the fiberizable liquid is discharged from the discharging means while the support is revolved at a constant velocity under the condition that a moving direction of a linear motion area in the endless track conforms to a width direction of the collecting

Abstract: A spinning apparatus comprising one or more exits for extruding liquid, and an exit for ejecting gas, located upstream of the exits for extruding liquid, wherein the apparatus comprises a columnar hollow for liquid, in which the exit for extruding liquid forms one end of the columnar hollow; the apparatus comprises a columnar hollow for gas having the exit for ejecting gas; a virtual column for liquid, extended from the columnar hollow for liquid, is adjacent to a virtual column for gas, extended from the columnar hollow for gas; the central axis of the columnar hollow for liquid is parallel to the central axis of the columnar hollow for gas; and there exists only one straight line having the shortest distance between an outer boundary of the cross-section of the columnar hollow for gas and an outer boundary of the cross-section of the columnar hollow for liquid, is disclosed.

Abstract: A method of producing fibrous aggregate, comprising: a supplying and discharging step in which a fiberizable liquid is supplied from a means for storing a fiberizable liquid to a means for discharging a fiberizable liquid via a supplying pipe, and the fiberizable liquid is discharged from the discharging means; and a fibers-collecting step in which fibers drawn and fiberized by applying an electrical field to the discharged fiberizable liquid are accumulated directly on a collecting surface of a collector while the collecting surface is unidirectionally conveyed to form the fibrous aggregate; wherein the discharging means is carried on a support capable of moving along an endless track capable of rotationally travelling between a pair of rotating shafts, and the fiberizable liquid is discharged from the discharging means while the support is revolved at a constant velocity under the condition that a moving direction of a linear motion area in the endless track conforms to a width direction of the collecting s

Abstract: A percutaneously administrable base composition which facilitates the percutaneous absorption of drugs and is remarkably reduced in the irritancy against the skin. The composition comprises 10-60 wt. % of lower alcohol, 10-50 wt. % of humectant, 10-70 wt. % of water, 0.1-15 wt. % of abirritant and 0.1-15 wt. % of absorption promoter. A drug composition is prepared by adding to the above composition various active ingredients such as antitussive, expectorant, skeletal muscle relaxant, antivertiginous drug, narcotic, drug for the circulatory system, and so forth.

Abstract: An electric power system simulator comprising first calculator which calculates a generator dynamic characteristic, second calculator which calculates a load dynamic characteristic and third calculator which calculates power transmission condition of an electric power system network, then the first calculator cyclically obtains an amplitude and a phase of an internal induced voltage of the generator based on data on an output power and a terminal voltage of the generator, and the second calculator calculates a load equivalent admittance at predetermined time based on data on an A.C.

Abstract: A lug tire for agricultural machines and constructional vehicles provided with at least one discontinuous portion formed by decreasing a thickness of a base rubber at both end regions of a tread and arranged along the circumferential direction of the tire.

Abstract: A planographic dry offset master plate composed of a substrate and, formed thereon, a crosslinking agent-cured layer of a diorganopolysiloxane in which 5 to 40 mole % of the organic groups directly bonded to silicon atoms are phenyl groups. The master plate is especially suitable for plate-making by an electrostatic process and a direct image process. The resulting printing plate has good durability and are free from scumming during printing.