Abstract: The present invention provides a spiral-type filtration module including a liquid collection tube, and one or more units each including a first filtration membrane, a permeated-liquid flow-path member, a second filtration membrane, and a raw-liquid flow-path member, which are laminated on each other, wherein the one or more units are wound around the liquid collection tube to form a spiral-type membrane element, and the spiral-type membrane element is housed in a substantially-cylindrical outer container. In the permeated-liquid flow-path member, there are formed partition members for inhibiting a permeated liquid from flowing in a module axial direction.

Abstract: A method for treating ship ballast water with a membrane, which can easily separate and reliably remove a fouling substance attached to a membrane and maintain the membrane flux for long periods. The method including a membrane separation step of taking in seawater in a port area in which a ship is anchored and separating a microorganism with a size equal to or greater than a predetermined size therefrom with a membrane filtration apparatus installed in or on a hull of the ship and having a filtration membrane module, a backwash step of separating a fouling substance attached to a membrane surface of the membrane filtration apparatus from the membrane surface by backwashing is provided.

Abstract: To provide a method for treating ballast water with a membrane, which can reliably remove a fouling substance derived from a gel-like substance and a fouling substance of mineral origin, the fouling substances attached to a membrane, by separating or breaking down the fouling substances, and can maintain the membrane flux for long periods. In a method for treating ballast water with a membrane, the method provided with, in or on a hull of a ship, the membrane treatment equipment 1 that separates a microorganism with a size equal to or greater than a predetermined size, a fouling substance attached to the surface of the membrane is dissolved, broken down, or removed by using a cleaning fluid containing a peroxide which is at least one selected from hydrogen peroxide, hypochlorous acid, and ozone water.

Abstract: A method for treating ship ballast water with a membrane, which can easily separate and reliably remove a fouling substance attached to a membrane and maintain the membrane flux for long periods. the method including a membrane separation step of taking in seawater in a port area in which a ship is anchored and separating a microorganism with a size equal to or greater than a predetermined size therefrom with a membrane filtration apparatus installed in or on a hull of the ship and having a filtration membrane module, a backwash step of separating a fouling substance attached to a membrane surface of the membrane filtration apparatus from the membrane surface by backwashing is provided.

Abstract: An image sensor unit has an electric discharge light emitting lamp for producing an illumination beam. The lamp includes a first electrode and a second electrode facing each other and defining a discharge space between them along the longitudinal axis of the lamp. A first light emitting layer and a second light emitting layer are provided in the discharge space so as to face each other and to cover the first and second electrodes, respectively. A dielectric material is inserted between the first electrode and the first light emitting layer, and between the second electrode and the second light emitting layer. At least one of the first and second light emitting layers is arranged so as to define an uncovered region, in which at least one of the dielectric material, the first electrode, and the second electrode is exposed to the discharge space.

Abstract: An image sensor unit (1) has an electric discharge light emitting lamp (2) for producing an illumination beam. The lamp comprises a first electrode (22) and a second electrode (23) facing each other and defining a discharge space (2D) between them along the longitudinal axis of the lamp. A first light emitting layer (20) and a second light emitting layer (20′) are provided in the discharge space so as to face each other and to cover the first and second electrodes, respectively. A dielectric material (21, 2B) is inserted between the first electrode and the first light emitting layer, and between the second electrode and the second light emitting layer. At least one of the first and second light emitting layers is arranged so as to define an uncovered region (D, D′), in which at least one of the dielectric material, the first electrode, and the second electrode is exposed to the discharge space.

Abstract: Method for the production of lipds containing bis-homo-.gamma.-linolenic acid and/or arachidonic acid using microorganisms belonging to a genus Conidiobolus and capable of producing the lipids. The microorganisms are cultured on a medium containing an unsaturated fatty acid as a carbon source. The unsaturated fatty acid may be supplied as an additional carbon source in the course of culture. Preferably, the unsaturated fatty acid has 18 carbon atoms and 1 to 3 double bonds.

Abstract: An electromagnetic forming method is disclosed which effects desired forming on a given workpiece by disposing on the surface of the workpiece a driver obtained by superposing a highly electroconductive metal foil repeatedly over itself, opposing a primary coil to the driver, feeding electric current for forming to the primary coil thereby generating induced current in the driver, and allowing the workpiece to be formed by the resultant repulsive force exerted between the driver and the primary coil.

Abstract: A shock absorbing device in a press is formed by having a telescopically sliding member fastened to the punch plate of the press and a stopper member fastened to the die plate of the press and placing an oil of high viscosity between the post and the outer cylinder of the telescopically sliding member. This shock absorbing device damps the unloading impact produced when the punch of the press collides with a workpiece and fractures it and, thereby, abates the noise generated from the press, the tool and the workpiece.

Abstract: A method of manufacturing a hollow fiber in which a spinning solution of cellulose ester dissolved into an organic solvent is extruded from an annular slit, and simultaneously a core liquid is introduced into the inside hollow portion of the extruded spinning solution, the core liquid being selected from the group of hydroxycarboxylic acid, derivative of hydroxycarboxylic acid, monoterpene or these mixture, or consisting of a solution of the above-described compound or mixture.

Abstract: A method for the machining of a work blank by thermal shock, comprising the steps of locally heating and fusing the portions of the work blank desired to be machined and subsequently injecting a liquefied gas of extremely low temperature into the fused portions for thereby causing the fused portions to contract by thermal shock and enabling the removal of the fused portions and consequently the machining of the work to be accelerated by the explosive gasifying action of the liquefied gas.

Abstract: A stirred gas bubble fermenter is provided with a cooler outside the fermenter which is coupled to the fermenter through an overflow exit. An overflow weir is connected to the inner wall of the fermenter below the overflow exit and extends at least in the upward direction of the fermenter. In a preferred embodiment, the overflow weir extends above the upper extremity of the overflow exit. The fermenter may further be provided with a guide plate arranged between at least a portion of the overflow weir and at least a portion of the overflow exit in order to more efficiently separate bubbles from a culture broth in the fermenter.