Abstract: An engine includes a crankcase with cylinders and fins on outer circumferences of the cylinders. A crank shaft penetrates the crankcase. A cooling fan is provided on an outer side of the crankcase and arranged coaxially with the crank shaft. A first cover covers an outer side of the cylinders and the crankcase, and the cooling fan. A second cover capable of being detached from/attached to the first cover. The first cover includes a first opening facing the cooling fan, and second openings facing the fins. The second cover includes an air inlet facing the first opening, and attached to the first cover to cover the first opening and the second openings.

Abstract: A thrips control agent in accordance with an embodiment of the present invention is used for plants belonging to family Brassicaceae, family Solanaceae, family Rosaceae, family Cucurbitaceae, family Fabaceae, or family Asteraceae. The thrips control agent contains prohydrojasmon as an active ingredient, so that a negative impact of the thrips control agent on plant growth is suppressed.

Abstract: An engine includes a crankcase with cylinders and fins on outer circumferences of the cylinders. A crank shaft penetrates the crankcase. A cooling fan is provided on an outer side of the crankcase and arranged coaxially with the crank shaft. A first cover covers an outer side of the cylinders and the crankcase, and the cooling fan. A second cover capable of being detached from/attached to the first cover. The first cover includes a first opening facing the cooling fan, and second openings facing the fins. The second cover includes an air inlet facing the first opening, and attached to the first cover to cover the first opening and the second openings.

Abstract: The object of the present invention is to provide a method of producing a fruit of a Capsicum plant in which a vitamin C content, in particular a vitamin C content alone, is increased according to a common cultivating procedure without requiring special facility and cultivating procedure. The present invention provides a method of producing a fruit of a Capsicum plant with an increased vitamin C content, characterized by inoculating an attenuated strain of a virus belonging to Tomamovirus to a seedling of the Capsicum plant and cultivating the seedling to the Capsicum plant.

Abstract: A utility engine has a cylinder body extending obliquely upward from a crankcase and a cylinder head attached to an end of the cylinder body. The utility engine has a carburetor attached to a side of the cylinder head and an air cleaner attached to a side of the carburetor opposite the cylinder head. The canister is located below the carburetor and adjacent to the air cleaner.

Abstract: An electrostatic motor for use as a power generating mechanism to be mounted on a micromachine includes a rotatable semiconductor substrate and a drive electrode disposed in proximity to the substrate. The semiconductor substrate is doped with a specified impurity element to form electromagnetic wave-static electric converters of p-n junction. When the motor is to be started, the converter in the vicinity of the electrode is irradiated with electromagnetic waves to set up an electric field between the opposed surfaces of the converter and the electrode to rotate the substrate by an electrostatic force due to the electric field.

Abstract: A semiconductor device including a semiconducting layer made of polycrystalline silicon, an insulating film provided on an upper face of the semiconducting layer and an electrode provided on an upper face of the insulating film such that channels are formed on the upper face of the semiconducting layer, the improvement comprising: a further semiconducting layer made of amorphous silicon, which is provided between the semiconducting layer and the insulating film.

Abstract: A field effect transistor comprises a source electrode, a drain electrode, a channel layer between the source electrode and the drain electrode, a gate electrode for controlling electric current in the channel layer, and a superlattice layer interposed between the channel layer and the gate electrode, the superlattice layer having a plurality of constituent thin layers perpendicular to a direction of electric current in the channel layer.