Abstract: An explosion-proof structure includes a partition wall that partitions a sealed space in a container and wiring that connects the interior and the exterior of the sealed space. The partition wall includes a filling portion through which the wiring passes. The filling portion includes an inner peripheral wall surface that defines an opening having a central axis that passes through the partition wall, a filler that seals a gap between the inner peripheral wall surface and the wiring, a first peripheral groove provided on the inner peripheral wall surface and filled with the filler, and a second peripheral groove provided on the inner peripheral wall surface and filled with the filler. This explosion-proof structure is capable of improving the seal of the filling portion.

Abstract: An explosion-proof structure includes a partition wall that partitions a sealed space in a container and wiring that connects the interior and the exterior of the sealed space. The partition wall includes a filling portion through which the wiring passes. The filling portion includes an inner peripheral wall surface that defines an opening having a central axis that passes through the partition wall, a filler that seals a gap between the inner peripheral wall surface and the wiring, a first peripheral groove provided on the inner peripheral wall surface and filled with the filler, and a second peripheral groove provided on the inner peripheral wall surface and filled with the filler. This explosion-proof structure is capable of improving the seal of the filling portion.

Abstract: An ultrasonic measuring device that measures a flow volume of a fluid by sending an ultrasonic signal to the fluid and receiving a transmission signal or a reflection signal of the ultrasonic signal obtained from the fluid, may include: a first computing unit that performs a calculation to a first receive signal obtained by receiving the transmission signal, and determines a first flow volume indicating the flow volume of the fluid; a second computing unit that performs a correlation calculation of a second receive signal obtained by receiving the reflection signal, and determines a second flow volume indicating the flow volume of the fluid; a storage unit; and a correcting unit that outputs one of the first flow volume and the second flow volume based on a volume of air-bubbles contained in the fluid.

Abstract: An ultrasonic meter may include, but is not limited to, an emitter that emits a series of ultrasonic burst signals towards a fluid containing bubbles and/or particles, the series of ultrasonic burst signals being reflected by the air bubbles and/or particles in the fluid to be a series of reflected signals, a receiver that receives the series of reflected signals, and a calculator that calculates a plurality of correlation coefficients by performing a correlation processing on a series of received signals outputted from the receiver, the calculator calculating a physical quantity of the fluid based on the plurality of correlation coefficients.

Abstract: An ultrasonic meter may include, but is not limited to, an emitter that emits a series of ultrasonic burst signals towards a fluid containing bubbles and/or particles, the series of ultrasonic burst signals being reflected by the air bubbles and/or particles in the fluid to be a series of reflected signals, a receiver that receives the series of reflected signals, and a calculator that calculates a plurality of correlation coefficients by performing a correlation processing on a series of received signals outputted from the receiver, the calculator calculating a physical quantity of the fluid based on the plurality of correlation coefficients.

Abstract: A method of rearing, cultivating or stocking crustacea, and crustacea reared, cultivated or stocked by the method. The method improves the survival rate and survival period of the crustacea. In the method, the crustacea are reared, cultivated or stocked within a deep sea water drawn from the sea at a depth of above 100 meters. The crustacea may be deep sea crustacea living in the sea at a depth of above 100 meters. The crustacea do not include crustacea living in the Sea of Japan at a depth of above 250 meters. The deep sea water may have a temperature of below 20° C.

Abstract: A method of rearing, cultivating or stocking crustacea, and crustacea reared, cultivated or stocked by the method. The method improves the survival rate and survival period of the crustacea. In the method, the crustacea are reared, cultivated or stocked within a deep sea water drawn from the sea at a depth of above 100 meters. The crustacea may be deep sea crustacea living in the sea at a depth of above 100 meters. The crustacea do not include crustacea living in the Sea of Japan at a depth of above 250 meters. The deep sea water may have a temperature of below 20° C.

Abstract: A data processor for processing, recording and/or displaying data obtained from an object being examined, comprising a plurality of detachable units formed of functional blocks connected together by communication cables; a carriage driver using a screw to improve character print quality and resolution; a plurality of input units which convert signals obtained from the object into digital output signals; a control unit comprising a plurality of connectors attached to the respective input units and an arithmetic/communication device having information about positions at which the connectors are mounted and collecting signals obtained from the object and arithmetically processing the signals, and storage device wherein results of the arithmetic processing are stored; wherein the control unit processes data obtained from the object using signals tored in the storage device, and produces the recording and/or display; and wherein the character printing portion of the control unit comprises a support and driver for

Abstract: A water passage forming member (10) embedded in a connection wall (4) between adjacent bores (3a) (3a) of a multi-cylinder (2) by a casting process is provided with a pair of left and right vertical jacket communication passages (12)(12) for making cylinder jackets (8)(8) within a cylinder block (1) communicate with a head jacket (22), cooling water passages (15) arranged vertically and in multiple stage for making the paired jacket communication passages (12)(12) communicate with each other, and non-hollow portions (11) arranged in multiple stage and alternately with the cooling water passages (15).

Abstract: A system for blow-by gas return to the combustion chamber of an engine according to the present invention including an oil separator with an inlet communicating with an outlet through a diffusion chamber and a filter element; said oil separator communicating with the crankcase of the engine through a breather and an inlet pipe, and also communicates with the intake manifold of the engine through an outlet pipe, so as to separate the oil from the blow-by gas almost completely. The oil separator and the inlet and outlet pipes are disposed in a space directly over the cylinder head of the engine and the intake manifold, so as to prevent ice accumulation therein by the radiation and convection of engine heat thereon.

Abstract: An apparatus for the return of crankcase vapors into a combustion chamber of an internal combustion engine, and for separating lubricating oil mist in the crankcase vapors. Some of the lubricating oil mist being removed primarily with a breather device and the residual oil mist being separated secondarily with an oil-bath type air cleaner, by directing the vapors into the air cleaner through a vapor passage.