Abstract: A remote controller (4) for watercraft (6) includes a rod (21) extending downward from the free end part of a lever along a lengthwise direction thereof, a lock release button (14) slidably provided in the free end part so as to be slidable in a first direction different from the lengthwise direction of the lever, and a conversion mechanism provided between the lock release button and the first end of the rod to covert a movement of the lock release button in the first direction to a movement of the rod in a second direction extending along the lengthwise direction of the lever.

Abstract: A method for inspecting a power storage device for short circuit includes: adjusting a plurality of power storage devices to a first device voltage; restraining the power storage devices; measuring a pre-leaving device voltage, leaving the power storage devices, and measuring a post-leaving device voltage; obtaining a voltage drop rate; and determining whether or not a restrained device is short-circuited using a voltage drop rate. The method further includes: calculating a largest adjustment timing difference between an oldest adjustment completion time of an oldest adjusted device and a newest adjustment completion time of a newest adjusted device, after adjusting the voltage but before measuring the pre-leaving voltage; obtaining a shortest standby time from the largest adjustment timing difference; and deferring the measuring of the pre-leaving voltage until the shortest standby time elapses.

Abstract: A method for inspecting a battery for short circuit includes: adjusting batteries, which have been subjected to initial charging and subsequent charging and discharging, to a first device voltage; measuring a pre-leaving voltage; leaving the batteries for a leaving period with terminals in an open state; measuring a post-leaving device voltage; actually measuring an actual measured voltage drop rate; determining whether or not each voltage is short-circuited; and, prior to the determining, estimating an estimating voltage drop rate according to an elapsed time and a leaving period. In the determining, it is determined whether or not each battery is short-circuited using the actual voltage drop rate and the estimated voltage drop rate.

Abstract: A method of self-discharge test for a battery including an electrode body provided with a positive electrode plate including a positive active material layer and a negative electrode plate including a negative active material layer. The method includes a process of voltage adjusting to adjust a battery voltage to a first battery voltage and a process of self-discharge testing to keep the battery in a terminal open state for a predetermined term and to inspect a state of self-discharge of the battery from variations in the battery voltage occurred during the predetermined term. The voltage adjusting is to adjust the battery voltage to the first battery voltage having magnitude, for which a variation settled time of settling a variation amount of the battery voltage varied by Li diffusion to lessen a concentration gap of an opposing-portion concentration and a non-opposing portion concentration, is set as 17 hours or less.

Abstract: A high-pressure tank comprising: a resin liner for a high-pressure tank including at least one opening portion; an aluminum mouth portion attached to the opening portion; and a reinforcement layer formed on an outer surface of the liner, wherein an aluminum oxide coating is formed on a surface of the aluminum mouth portion, the aluminum oxide coating includes a porous surface layer in which columns with an average height of 10 to 100 nm are arranged in a dispersed state, an average value of a percentages of the protruding portion area of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 5.0 to 26.0%, and an average value of the numbers of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 500 to 2000.

Abstract: A driving and controlling system for driving a shredding mechanism by a motor to shred paper sheets increases shredding capacity represented by the number of paper sheets that can be simultaneously shredded while limiting input current in an allowable range and reduces time necessary for shredding a predetermined number of paper sheets. The driving and controlling system comprises a motor (4) for driving a shredding mechanism (5) for shredding paper sheets (10), and a controller (1) interposed between the motor and a commercial power supply system (13) to control power to be supplied to the motor. The motor has a characteristic to reduce motor torque substantially linearly with the increase of operating speed for voltage applied thereto as a parameter.

Abstract: A carbon fiber of a high tenacity and a high modulus of elasticity having a fiber diameter of 1 to 6 .mu.m, a strand tenacity of 430 kg/mm.sup.2 or more, a strand modulus of elasticity of 28 ton/mm.sup.2 or more and a density of 1.755 g/cm.sup.3 or more, and a process for producing the same.The above-mentioned carbon fiber has extremely useful properties as a raw material for composite materials to be used not only for sporting goods such as fishing rods or golf clubs but also in aerospace industries.

Abstract: A carbon based porous hollow fiber membrane excellent in heat resistance wherein it has pores which continuously penetrate from inner wall surface to outer wall surface of the membrane, maximum value of pore radius obtained from pore volume differential curve is in 10-1000 nm, total pore volume is 0.1-1 cm.sup.3 /g, curvature radius at flexing is 10 cm or less, and temperature at which 10% by weight of the membrane is decomposed and which is measured by TGA is at least about 300.degree. C. and a method for producing the abovementioned carbon based porous hollow fiber membrane having excellent heat resistance, characterized by comprising mixing an acrylonitrile based polymer (A) containing 90-100 mol % of acrylonitrile unit, a heat decomposable polymer (B) which is heat decomposed at a temperature of 600.degree. C.

Abstract: Acrylonitrile precursor fibers are subjected to a flame-resisting treatment, in an oxidizing atmosphere, while being elongated at least 3%, until a density of 1.22 g/cm.sup.3 is reached. The fibers are further treated to increase density up to 1.40 g/cm.sup.3, and then heat treated while undergoing further elongation, followed by higher temperature heat treatment while under tension. The resulting fibers have excellent properties, including high strand tenacity, high strand modulus, and high density.