Abstract: A separator according to an embodiment includes a first flow channel comprising flow-channel grooves and connecting a first location and a second location. The first flow channel has a serpentine flow channel shape. The midpoint in a length direction of the first flow channel is defined as the boundary. A range from the boundary to the first location side is defined as the first half. A range from the boundary to the second location side is defined as the second half. A turnaround area is included in the first half of the first flow channel. A turnaround area is included in the second half of the first flow channel that has a flow channel pattern different from that in the first half of the first flow channel.

Abstract: A separator including a flow channel 10 comprising a first flow-channel wall, a second flow-channel wall, a first flow-channel groove between the first flow-channel wall and the second flow-channel wall, and one or more first blocking walls in the first flow-channel groove. The first blocking walls close off a portion of the latter half of the first flow-channel groove.

Abstract: A separator according to an embodiment including: a flow channel comprising flow-channel walls and flow channel grooves provided between the flow-channel walls; a supply manifold; an exhaust manifold; a supply connection channel connecting one end of the flow channel to the supply manifold; and an exhaust connection channel connecting the other end of the flow channel to the exhaust manifold. The supply connection channel or/and the exhaust connection channel comprise one or more first protrusion-wall groups including first protrusion-walls and one or more second protrusion-wall groups including second protrusion-walls. The first protrusion-walls are aligned in a second direction which is a vertical direction relative to a first direction which is parallel to the flow-channel grooves at the end portion of the flow channel. The second protrusion-walls are aligned in a second direction. The first protrusion-wall groups and the second protrusion-wall groups are aligned in the first direction.

Abstract: A separator according to an embodiment includes a flow channel comprising one or more flow-channel grooves provided between flow-channel walls. One or more protrusions are provided on the flow-channel walls.

Abstract: An electrochemical reaction device, comprises: an anode to oxidize a first substance; a first flow path facing on the anode and through which a liquid containing the first substance flows; a cathode to reduce a second substance; a second flow path facing on the cathode and through which a gas containing the second substance flows; a porous separator provided between the anode and the cathode; and a power supply connected to the anode and the cathode. A thickness of the porous separator is 1 ?m or more and 500 ?m or less. An average fine pore size of the porous separator is larger than 0.008 ?m and smaller than 0.45 ?m. A porosity of the porous separator is higher than 0.5.

Abstract: A cooling device of an embodiment includes an evaporator, a condenser, a first connection pipe, a second connection pipe, and a third connection pipe. A refrigerant is vaporized in the evaporator by heat generated by a heating element. The condenser is located above the evaporator, and configured to condense the vaporized refrigerant by exchanging heat with an external fluid. The first connection pipe guides the refrigerant vaporized by the evaporator to the condenser. The second connection pipe guides the refrigerant condensed by the condenser to the evaporator. The third connection pipe connects a portion of the first connection pipe and a portion of the second connection pipe. A connection position between the third connection pipe and the first connection pipe is higher than a maximum liquid level height of the refrigerant in the second connection pipe during an operation.

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, an apparatus for loading vibration is provided. The apparatus for loading vibration has a contacting unit, a first vibration unit, a storage unit and a control unit. The contacting unit is capable of coming into contact with a biological body which pulsates or beats in a contact state of a first contact condition. The first vibration unit provides a self-excited vibration to the biological body through the contacting unit. The storage unit stores a second contact condition which synchronizes the self-excited vibration with the pulses or the beats. The control unit controls the contact state of the contacting unit so as to make the first contact condition become closer to the second contact condition.

Abstract: An electrochemical reaction device, comprises: an anode to oxidize a first substance; a first flow path facing on the anode and through which a liquid containing the first substance flows; a cathode to reduce a second substance; a second flow path facing on the cathode and through which a gas containing the second substance flows; a porous separator provided between the anode and the cathode; and a power supply connected to the anode and the cathode. A thickness of the porous separator is 1 ?m or more and 500 ?m or less. An average fine pore size of the porous separator is larger than 0.008 ?m and smaller than 0.45 ?m. A porosity of the porous separator is higher than 0.5.

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: An image processing apparatus according to an embodiment includes a processing circuitry. The processing circuitry is configured to obtain images in a time series including images of a blood vessel of a subject and correlation information indicating a correlational relationship between physical indices of the blood vessel and function indices of the blood vessel related to vascular hemodynamics, calculate blood vessel morphology indices in a time series indicating morphology of the blood vessel of the subject, on a basis of the images in the time series, and identify a function index of the blood vessel of the subject, by using a physical index of the blood vessel of the subject obtained from the blood vessel morphology indices, on a basis of the correlation information.

Abstract: According to one embodiment, a heat dissipation structure includes a heat dissipating unit and a heat accumulating unit. The heat dissipating unit includes at least one extending part which extends in a first direction, and is configured to be thermally connected to an apparatus which is configured to produce heat. The heat accumulating unit includes an accommodating unit which is configured to be thermally connected to the extending part, a heat storage material sealed inside the accommodating unit.

Abstract: According to one embodiment, a heat exchanger includes a pipe through which a fluid flows, and a supply device that supplies the fluid to the pipe. The pipe includes a flexible part deformed by flowing of the fluid, and a constricted part located at a downstream side of the flexible part along a flow direction of the fluid.

Abstract: A cooling device of an embodiment includes an evaporator, a condenser, a first connection pipe, a second connection pipe, and a third connection pipe. A refrigerant is vaporized in the evaporator by heat generated by a heating element. The condenser is located above the evaporator, and configured to condense the vaporized refrigerant by exchanging heat with an external fluid. The first connection pipe guides the refrigerant vaporized by the evaporator to the condenser. The second connection pipe guides the refrigerant condensed by the condenser to the evaporator. The third connection pipe connects a portion of the first connection pipe and a portion of the second connection pipe. A connection position between the third connection pipe and the first connection pipe is higher than a maximum liquid level height of the refrigerant in the second connection pipe during an operation.

Abstract: An image forming apparatus according to an embodiment includes, a fixing roller including a heat generation source, supplying heat to a printing object, and fixing toner on the printing object, an opposing roller opposed to the fixing roller to hold the printing object between the opposing roller and the fixing roller, a heat exchange roller containing a heat storage material capable of changing in between a liquid and a solid phase, a sensor capable of sensing a temperature of the fixing roller; and a driving unit causing the heat exchange roller to abut against the fixing roller and separating the heat exchange roller from the fixing roller, in accordance with the temperature of the fixing roller sensed by the sensor.

Abstract: An image processing apparatus according to an embodiment includes a processing circuitry. The processing circuitry is configured to obtain images in a time series including images of a blood vessel of a subject and correlation information indicating a correlational relationship between physical indices of the blood vessel and function indices of the blood vessel related to vascular hemodynamics, calculate blood vessel morphology indices in a time series indicating morphology of the blood vessel of the subject, on a basis of the images in the time series, and identify a function index of the blood vessel of the subject, by using a physical index of the blood vessel of the subject obtained from the blood vessel morphology indices, on a basis of the correlation information.

Abstract: According to one embodiment, a fixing device includes a cylinder-shaped rotatable fixing belt and a pressurizing rotating member which is arranged so as to face the fixing belt along an axial direction, and transports a recording medium by rotating along with the fixing belt. In addition, arranged in the fixing belt, a pressurizing member which presses the fixing belt from an inner peripheral portion toward the pressurizing rotating member side, and a support member which supports the pressurizing member, and arranged a moisture absorbing layer which absorbs moisture in air and discharges the absorbed moisture according to a temperature rise between the support member and the pressurizing member.

Abstract: According to one embodiment, a heat dissipation structure includes a heat dissipating unit and a heat accumulating unit. The heat dissipating unit includes at least one extending part which extends in a first direction, and is configured to be thermally connected to an apparatus which is configured to produce heat. The heat accumulating unit includes an accommodating unit which is configured to be thermally connected to the extending part, a heat storage material sealed inside the accommodating unit.

Abstract: An image forming apparatus according to an embodiment includes, a fixing roller including a heat generation source, supplying heat to a printing object, and fixing toner on the printing object, an opposing roller opposed to the fixing roller to hold the printing object between the opposing roller and the fixing roller, a heat exchange roller containing a heat storage material capable of changing in between a liquid and a solid phase, a sensor capable of sensing a temperature of the fixing roller; and a driving unit causing the heat exchange roller to abut against the fixing roller and separating the heat exchange roller from the fixing roller, in accordance with the temperature of the fixing roller sensed by the sensor.

Abstract: An image processing apparatus according to an embodiment includes a processing circuitry. The processing circuitry is configured to obtain images in a time series including images of a blood vessel of a subject and correlation information indicating a correlational relationship between physical indices of the blood vessel and function indices of the blood vessel related to vascular hemodynamics, calculate blood vessel morphology indices in a time series indicating morphology of the blood vessel of the subject, on a basis of the images in the time series, and identify a function index of the blood vessel of the subject, by using a physical index of the blood vessel of the subject obtained from the blood vessel morphology indices, on a basis of the correlation information.