Abstract: In a combustion experimental apparatus to obtain the positions of flames formed inside a tube (1), it is possible to adjust a temperature gradient in a longitudinal direction applied to the tube, by including a temperature-adjusting fluid supply device (2) to cause a temperature-adjusting fluid to flow along the tube.

Abstract: A fuel property determination method includes a reaction mechanism analysis process (S1) of analyzing elementary reactions that compose chemical reactions between a plurality of types of initial materials including the materials that compose the fuel and obtaining the elementary reactions as fuel elementary reactions, and an octane number determination process (S2) of calculating the combustion characteristics of the fuel by performing a simulation based on the fuel elementary reactions and determining the octane number based on the combustion characteristics of the fuel.

Abstract: A hermetically sealed gas heater (110) includes a heater main body, an introduction hole (132) configured to introduce a fuel gas into the heater main body, a combustion chamber (136) configured to combust the fuel gas flowing from introduction hole, and a discharge section (138) into which an exhaust gas generated by combustion in the combustion chamber is guided. The heater main body includes a radiation surface (140) heated by the exhaust gas flowing through the discharge section and configured to transfer radiant heat to a heating target (156). An ejection port (142a) configured to partially or entirely eject the exhaust gas to the heating target is formed at the radiation surface.

Abstract: A combustion heater (110) provided with a heating plate (126); a placement plate (120) disposed opposite the heating plate; an outer wall (122) provided around the outer circumference of the heating plate and the placement plate; a partitioning plate (124) that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion (134) by a gap with the placement plate, and that forms a lead-out portion (138) by a gap with the heating plate; and a combustion chamber (136) that is arranged in the space enclosed by the heating plate, the placement plate and the outer wall, and at which the fuel gas that was introduced from the lead-in portion combusts, and that leads out exhaust gas produced by the combustion toward the lead-out portion; in which a concavo-convex portion (146) that has concavities and convexities in the thickness direction is provided in the partitioning plate.

Abstract: A combustion heater (110) that is provided with a heating plate (126); a placement plate (120) disposed opposite the heating plate; an outer wall (122) provided around the outer circumference of the heating plate and the placement plate; a partitioning plate (124) that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion (134) by a gap with the placement plate, and that forms a lead-out portion (142) by a gap with the heating plate; a linking portion (136) that links the lead-in portion and the lead-out portion; a combustion chamber (138) that combusts fuel gas at the lead-out portion near the linking portion; and a flame-stabilization portion (140) that is provided in the combustion chamber and that maintains the combustion of the fuel gas in the combustion chamber.

Abstract: The fuel physical property determination method relating to the first aspect of the present invention includes: a test fuel flame-imaging step of obtaining imaging data by imaging flames formed by supplying a pre-mixed gas containing a test fuel and an oxidant agent, to a test tube in which an internal flow path thereof has a diameter set smaller than a flame-quenching distance at normal temperature; and a physical property determination step of determining a physical property of the test fuel by comparing the imaging data obtained in the test fuel flame-imaging step and imaging data obtained by imaging flames ignited by supplying a pre-mixed gas containing a standard-mixed fuel and an oxidant agent, to the test tube, the standard-mixed fuel having a known physical property.

Abstract: The combustion heater includes an inner tube having a supply passage for combustion gas in an inner portion, and an outer tube disposed to provide a separated combustion space in an outer periphery of the inner tube. A hole part for ejecting the combustion gas being formed on a tube wall of the inner tube and a radiation promoting surface is disposed on an outer periphery of the inner tube. This structure suppresses excess temperature increase in the inner tube and improves heating efficiency in the combustion heater.

Abstract: Includes a low flow-rate region (R2) that is disposed on an upstream side of a combustion region (R1) within a second pipe (2), and that has a relatively slow flow-rate of combustion gas (G1) within the second pipe, and a flame kernel formation unit (3a) is disposed in the low flow-rate region.

Abstract: It is an object of the present invention to provide a microbial fuel cell capable of increasing a current density without employing a mediator. The microbial fuel cell 1 includes a 3-dimensionally structured agglomerate formed from conductive fine particles 2 and microorganisms 3. In the agglomerate 4, the conductive fine particles 2 disperse among pieces of Shewanella 3 and the conductive fine particles 2 are coupled to one another to hold Shewanella 3, thus forming the 3-dimensional structure as a whole. Accordingly, with respect to Shewanella 3, conductive fine particles 2 hold Shewanella 3a on a surface of an electrode 103 and even Shewanella 3b positioned vertically away from the surface of the electrode 103. Hence, it becomes possible that more pieces of Shewanella 3 are allowed to transfer electrons.

Abstract: In a linear motion guide device suitably applicable to applications under high-temperature and vacuum environments where no plastic end cap is applicable, and having an end cap formed by injection molding using metal powders as a raw material, the degree of adhesion of the metal powders is improved at a thin and keen portion like the scooping portion of the end cap, thereby suppressing an abrasion and a deformation. The end cap (7) is formed by injection molding (MIM: Metal Injection Molding) using metal powders of equal to or less than 20 ?m as a raw material, and has a scooping portion (9) having undergone an HIP (Hot-Isostatic-Pressing) process and a thermal process.

Abstract: A combustion heater (110) provided with a heating plate (126); a placement plate (120) disposed opposite the heating plate; an outer wall (122) provided around the outer circumference of the heating plate and the placement plate; a partitioning plate (124) that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion (134) by a gap with the placement plate, and that forms a lead-out portion (138) by a gap with the heating plate; and a combustion chamber (136) that is arranged in the space enclosed by the heating plate, the placement plate and the outer wall, and at which the fuel gas that was introduced from the lead-in portion combusts, and that leads out exhaust gas produced by the combustion toward the lead-out portion; in which a concavo-convex portion (146) that has concavities and convexities in the thickness direction is provided in the partitioning plate.

Abstract: A combustion heater (110) that is provided with a heating plate (126); a placement plate (120) disposed opposite the heating plate; an outer wall (122) provided around the outer circumference of the heating plate and the placement plate; a partitioning plate (124) that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion (134) by a gap with the placement plate, and that forms a lead-out portion (142) by a gap with the heating plate; a linking portion (136) that links the lead-in portion and the lead-out portion; a combustion chamber (138) that combusts fuel gas at the lead-out portion near the linking portion; and a flame-stabilization portion (140) that is provided in the combustion chamber and that maintains the combustion of the fuel gas in the combustion chamber.

Abstract: A hermetically sealed gas heater (110) includes a heater main body, an introduction hole (132) configured to introduce a fuel gas into the heater main body, a combustion chamber (136) configured to combust the fuel gas flowing from introduction hole, and a discharge section (138) into which an exhaust gas generated by combustion in the combustion chamber is guided. The heater main body includes a radiation surface (140) heated by the exhaust gas flowing through the discharge section and configured to transfer radiant heat to a heating target (156). An ejection port (142a) configured to partially or entirely eject the exhaust gas to the heating target is formed at the radiation surface.

Abstract: In a linear motion guide device suitably applicable to applications under high-temperature and vacuum environments where no plastic end cap is applicable, and having an end cap formed by injection molding using metal powders as a raw material, the degree of adhesion of the metal powders is improved at a thin and keen portion like the scooping portion of the end cap, thereby suppressing an abrasion and a deformation. The end cap (7) is formed by injection molding (MIM: Metal Injection Molding) using metal powders of equal to or less than 20 ?m as a raw material, and has a scooping portion (9) having undergone an HIP (Hot-Isostatic-Pressing) process and a thermal process.

Abstract: The fuel physical property determination method relating to the first aspect of the present invention includes: a test fuel flame-imaging step of obtaining imaging data by imaging flames formed by supplying a pre-mixed gas containing a test fuel and an oxidant agent, to a test tube in which an internal flow path thereof has a diameter set smaller than a flame-quenching distance at normal temperature; and a physical property determination step of determining a physical property of the test fuel by comparing the imaging data obtained in the test fuel flame-imaging step and imaging data obtained by imaging flames ignited by supplying a pre-mixed gas containing a standard-mixed fuel and an oxidant agent, to the test tube, the standard-mixed fuel having a known physical property.

Abstract: In a combustion experimental apparatus to obtain the positions of flames formed inside a tube (1), it is possible to adjust a temperature gradient in a longitudinal direction applied to the tube, by including a temperature-adjusting fluid supply device (2) to cause a temperature-adjusting fluid to flow along the tube.

Abstract: A fuel property determination method includes a reaction mechanism analysis process (S1) of analyzing elementary reactions that compose chemical reactions between a plurality of types of initial materials including the materials that compose the fuel and obtaining the elementary reactions as fuel elementary reactions, and an octane number determination process (S2) of calculating the combustion characteristics of the fuel by performing a simulation based on the fuel elementary reactions and determining the octane number based on the combustion characteristics of the fuel.

Abstract: Includes a low flow-rate region (R2) that is disposed on an upstream side of a combustion region (R1) within a second pipe (2), and that has a relatively slow flow-rate of combustion gas (G1) within the second pipe, and a flame kernel formation unit (3a) is disposed in the low flow-rate region.

Abstract: A combustor comprises a fuel flow path (10) which is a flow path for fuel (G1) and which is capable of emitting the fuel to its own exterior; an air flow path (20) which is a flow path for air (G2) and which is capable of emitting the air to its own exterior; and an exhaust gas flow path (30) which has a combustion region (R) wherein an air-fuel mixture that mixes the fuel and the air is burned and which constitutes an exhaust flow path for burned gas that is produced by combustion; wherein the fuel within the fuel flow path and the air within the air flow path are heated by the heat of the burned gas, and the air-fuel mixture is constituted by mixing the fuel emitted from the fuel flow path and the air emitted from the air flow path in the exhaust gas flow path.

Abstract: In a linear guide device including: a rail having on either side surface thereof a track recess with a track surface formed thereon; a rail cover covering a rail upper surface of the rail; a saddle-like slider moving linearly on the rail; and a rolling member circulating through a connection path provided in the slider and adapted to roll on the track surface of the rail, the rail cover is equipped with a side edge portion having an engagement portion, an upper track surface serving as an engagement surface is provided in a lower portion of an upper side surface of the rail, the engagement surface being a slope gradually diminishing in the rail width direction downwardly from the upper side surface, and an engagement portion of the rail cover is engaged with the engagement surface, whereby it is possible to achieve an increase in the speed of the rail grinding work for allowing engagement of the rail cover covering the rail upper surface of the liner guide device.