Abstract: A dielectric barrier discharge electrode of an embodiment has: a dielectric; a first electrode provided to be exposed on the dielectric; a second electrode provided to be covered by the dielectric; and a third electrode provided to be covered by the dielectric in a neighborhood of the first electrode.

Abstract: A dielectric barrier discharge electrode of an embodiment has: a dielectric; a first electrode provided to be exposed on the dielectric; a second electrode provided to be covered by the dielectric; and a third electrode provided to be covered by the dielectric in a neighborhood of the first electrode.

Abstract: According to one embodiment an electronic apparatus includes a housing, a heat generating element, a plurality of sensors, and an index calculator. The heat generating element is housed in the housing. The index calculator calculates an index corresponding to a physical quantity or an index indicating performance of the electronic apparatus, based on a correlation between detected values of the sensors and the index.

Abstract: According to an embodiment, system includes transmitter, pump, controller, tank and thermal storage. Pump circulates water through the transmitter. Controller drives the pump, circulates the water while the transmitter is operating, and stops the circulation of the water at a time of a stop of the transmitter. Tank stores the water circulated through the transmitter, and supplies the water to the pump. Thermal storage is provided on a surface of the tank, and stores waste heat of the exothermic part of the transmitter, which was taken in the water via the tank. Thermal storage changes in phase if a temperature of the water in the tank lowers to a predetermined temperature or below, and heats the water by latent heat which occurs.

Abstract: According to one embodiment, a heat transport apparatus includes an evaporator, a cooling unit, a channel structure, and a heating mechanism. The evaporator vaporizes a refrigerant by heat generated by a heat-generating element. The cooling unit is provided above the evaporator and cools and condenses the refrigerant vaporized in the evaporator. The channel structure constitutes a channel through which the refrigerant circulates between the evaporator and the cooling unit. The heating mechanism heats the cooling unit and suppresses solidification of the refrigerant at the cooling unit.

Abstract: According to one embodiment, a vehicle-use storage battery system includes a storage battery, a main circuit, a circuit breaker, a storage battery management unit, a first determiner, and a second determiner. The main circuit is electrically connected to the storage battery. The circuit breaker is disposed between the storage battery and the main circuit to make or break the electrical connection therebetween. The storage battery management unit manages an operating state of the storage battery. The first determiner determines whether to break the electrical connection between the storage battery and the main circuit by means of the circuit breaker. The second determiner determines, on the basis of at least one of operating states of the storage battery management unit, the first determiner, and the circuit breaker, whether to break the electrical connection between the storage battery and the main circuit by means of the circuit breaker.

Abstract: According to one embodiment, a plasma actuator includes an electrode member, an application electrode, a ground electrode, and a supporting member. The electrode member has a first surface facing a processing object and a second surface of an opposite side of the first surface. The application electrode is provided in the first surface. The ground electrode is provided in the second surface or an inner portion of the electrode member. The supporting member is provided in at least one of the electrode member and the application electrode to form a processing space between the processing object and the electrode member. The supporting member is capable of abutting on the processing object.

Abstract: According to one embodiment, a vehicular storage battery device includes a housing, battery boxes, and a common cooling passage. The battery boxes are disposed in the housing. Each of the battery boxes houses an electric cell as a vehicle power source and includes a heat transporting part transporting heat generated in the battery box to outside of the battery box. The common cooling passage is disposed in the housing. The common cooling passage is provided with an inlet for taking in a fluid and an outlet for discharging the fluid having passed through the passage. The inlet and the outlet are open in a direction different from a traveling direction of the vehicle. The heat transporting part of each of the battery boxes is exposed to inside of the passage.

Abstract: According to one embodiment, a heat transport apparatus includes an evaporator, a cooling unit, a channel structure, and a heating mechanism. The evaporator vaporizes a refrigerant by heat generated by a heat-generating element. The cooling unit is provided above the evaporator and cools and condenses the refrigerant vaporized in the evaporator. The channel structure constitutes a channel through which the refrigerant circulates between the evaporator and the cooling unit. The heating mechanism heats the cooling unit and suppresses solidification of the refrigerant at the cooling unit.

Abstract: Each of the plurality of battery heat radiation units includes, a battery module, at least one heat pipe thermally connected at a first end of the heat pipe to one surface of the battery module and protruding from the battery module at a second end of the heat pipe, at least one metal heat exchanger plate thermally connected to one surface of the battery module, and at least one heat radiation portion provided at the second end of the heat pipe, the air blowing portion blows air to the heat radiation portion, and one heat radiation portion in the plurality of battery heat radiation units is misaligned with other heat radiation portions in the plurality of battery heat radiation units as viewed from the air blowing portion side.

Abstract: According to one embodiment, a lighting device includes a hollow main body having thermal conductivity, a light source having at least a semiconductor light-emitting element, an accessory element, and an adiabatic member. The light source is thermally coupled to the main body. The accessory element has an allowable temperature limit different from that of the light source, and is accommodated in the main body. The adiabatic member divides the main body into a first region thermally coupled to the light source, and at least a second region thermally coupled to the accessory element and thermally isolated from the first region.

Abstract: In one embodiment, an illumination device includes a light-guiding unit having a light output surface which outputs light and a back surface facing the light output surface, wherein the light-guiding unit has a curved surface in a region of the back surface farther than a first position on the back surface that is away by a first distance from an axis passing the light output surface and the back surface, and a rough surface in a region of the light output surface farther than a second position on the light output surface that is away by a second distance from the axis in a same direction as a direction from the axis toward the first position, and where an intersection of the axis and the back surface is an origin point, and a direction of the axis from the back surface to the light output surface is positive, a normal line of the curved surface intersects with the axis at the positive side of the axis, and an angle formed by a normal line vector at the second position in a direction toward the light output s

Abstract: An optical system according to an embodiment includes: an irradiation device including a light source configured to emit light to an object; an imaging device including an imaging element, and configured to receive reflected light from the object, and obtain an image with respect to a first wavelength and an image with respect to a second wavelength that is different from the first wavelength; and a processing circuit configured to compare the image with respect to the first wavelength and the image with respect to the second wavelength to extract and separate a Fresnel reflection component and a scattering component included in the reflected light, and obtain at least one of a surface shape or a surface profile of the object based on the Fresnel reflection component and the scattering component.

Abstract: A light guiding body includes, an introducing portion including a plane of incidence and a plane of reflection opposite to the plane of incidence, a diffusion portion including a first plane provided on a side of the plane of reflection and a second plane provided on the side of the plane of incidence and opposite to the first plane, a first point positioned on a border between the plane of reflection and the first plane, and a second point on the plane of incidence, wherein when a center of curvature of the first plane at the first point is a third point, an index of refraction of the light guiding body is n, the curvature of the first plane at the first point is K, and a distance between the second point and the third point is D, Formula (4) is satisfied.

Abstract: According to one embodiment, a vehicle-use storage battery system includes a storage battery, a main circuit, a circuit breaker, a storage battery management unit, a first determiner, and a second determiner. The main circuit is electrically connected to the storage battery. The circuit breaker is disposed between the storage battery and the main circuit to make or break the electrical connection therebetween. The storage battery management unit manages an operating state of the storage battery. The first determiner determines whether to break the electrical connection between the storage battery and the main circuit by means of the circuit breaker. The second determiner determines, on the basis of at least one of operating states of the storage battery management unit, the first determiner, and the circuit breaker, whether to break the electrical connection between the storage battery and the main circuit by means of the circuit breaker.

Abstract: According to one embodiment, a vehicular storage battery device includes a housing, battery boxes, and a common cooling passage. The battery boxes are disposed in the housing. Each of the battery boxes houses an electric cell as a vehicle power source and includes a heat transporting part transporting heat generated in the battery box to outside of the battery box. The common cooling passage is disposed in the housing. The common cooling passage is provided with an inlet for taking in a fluid and an outlet for discharging the fluid having passed through the passage. The inlet and the outlet are open in a direction different from a traveling direction of the vehicle. The heat transporting part of each of the battery boxes is exposed to inside of the passage.

Abstract: According to one embodiment an electronic apparatus includes a housing, a heat generating element, a plurality of sensors, and an index calculator. The heat generating element is housed in the housing. The index calculator calculates an index corresponding to a physical quantity or an index indicating performance of the electronic apparatus, based on a correlation between detected values of the sensors and the index.

Abstract: A light guiding body that guides light includes, a light guiding portion, and an introducing portion including a plane of incidence and a curvature surface connected to the plane of incidence to guide the light to the light guiding portion by being connected to the light guiding portion, wherein an angle ?1 formed by a line segment connecting a first point on the plane of incidence and a second point on the curvature surface and a normal of the curvature surface at the second point satisfies ?1?sin?1(1/n), where n is an index of refraction of the light guiding body.

Abstract: Each of the plurality of battery heat radiation units includes, a battery module, at least one heat pipe thermally connected at a first end of the heat pipe to one surface of the battery module and protruding from the battery module at a second end of the heat pipe, at least one metal heat exchanger plate thermally connected to one surface of the battery module, and at least one heat radiation portion provided at the second end of the heat pipe, the air blowing portion blows air to the heat radiation portion, and one heat radiation portion in the plurality of battery heat radiation units is misaligned with other heat radiation portions in the plurality of battery heat radiation units as viewed from the air blowing portion side.

Abstract: In one embodiment, a light emitting device includes: a light source which emits light; a light guide portion which has an emission surface which emits light and a back surface which opposes to the emission surface, and which has at the back surface a reflecting portion which the light emitted from the light source enters and which reflects the entering light toward the emission surface; a heat transfer portion which opposes to the back surface of the light guide portion and is provided with an interval which is a wavelength of the light or more being spaced from the back surface; and a support portion which is provided between the reflecting portion and the heat transfer portion, and which keeps the interval between the light guide portion and the heat transfer portion.