Abstract: A serving system may comprise an acquiring unit configured to acquire order information from an external terminal, the order information indicating a content of an order inputted to the external terminal by a user; a presenting unit configured to present the content of the order indicated by the acquired order information to a serving entity that is to serve a serving-target article corresponding to the content; and a delivery vehicle configured to deliver the serving-target article corresponding to the presented content of the order to the user, and including a traction mechanism provided with a power source.

Abstract: A robot system includes a robot control device to link a plurality of transport robots having a function of traveling with a package being loaded. A task acquisition unit acquires a task to be performed. A notification unit notifies the transport robot of action details which are assigned regarding the task. The transport robot takes an action in link with another transport robot according to the notified action details.

Abstract: A vehicle traveling from a first area to a second area includes a traveling mechanism having a plurality of wheels and a traveling function, and a control unit configured to cause the traveling mechanism to perform a wheel cleaning operation and then cause the vehicle to enter the second area.

Abstract: The present invention relates to an alkali-free glass substrate, in which when two arbitrary sites in one main surface thereof are selected, an absolute value of a difference between a thermal shrinkage ratio in an arbitrary direction at one site and a thermal shrinkage ratio in a direction orthogonal to the arbitrary direction at another site is 2 ppm or less, provided that the thermal shrinkage ratio is calculated by measuring a deformation amount in a measuring direction of the glass substrate between before and after a heat treatment of raising a temperature from normal temperature to 600° C. at 100° C./hour, holding the glass substrate at 600° C. for 80 minutes, and lowering the temperature from 600° C. to normal temperature at 100° C./hour.

Abstract: Provided is a display device for displaying information, the display device being provided in a movable body including a fuel cell, a storage portion in which fuel gas to be supplied to the fuel cell is stored, and a remaining amount measuring portion configured to measure an amount of the fuel gas in the storage portion. The display device includes a display portion configured to display the information, and a controlling portion configured to control the display portion. The controlling portion displays, on the display portion, the amount of the fuel gas stored in the storage portion based on information provided from the remaining amount measuring portion.

Abstract: There is provided a fuel cell vehicle comprising a motor configured to perform a regenerative operation and to drive the fuel cell vehicle; a fuel cell; a secondary battery; and a control unit. The control unit comprises a weight acquirer configured to obtain a current weight of the fuel cell vehicle; and a charge discharge controller configured to set a higher value to an upper limit value and to set a lower value to a lower limit value when the current weight calculated by the weight acquirer is an increased weight that is larger than a reference value, compared with the upper limit value and the lower limit value set when the current weight is the reference weight.

Abstract: A hydrogen gas supply system comprises a storing unit that stores hydrogen, a communication unit that receives at least either of burden information indicative of an environmental burden exerted during manufacturing of hydrogen externally received by the storing unit and quality information indicative of quality with respect to the hydrogen externally received by the storing unit, a user interface unit that provides an output in accordance with the at least either of the burden information and the quality information with respect to the hydrogen supplied from the storing unit to the user, and a controller that controls the user interface unit based on an amount of the hydrogen received by the storing unit and the at least either of the burden information and the quality information, which is received by the communication unit.

Abstract: A steering apparatus includes a steering shaft; a steered shaft; a ball screw mechanism; and a motor. A plurality of rolling elements includes large-diameter rolling elements and small-diameter rolling elements. A prescribed diameter difference is set such that when a magnitude of power transmitted between a first screw groove and a second screw groove is a prescribed value or less, only the large-diameter rolling elements transmit the power between the first screw groove and the second screw groove, and when the magnitude of the power transmitted between the first screw groove and the second screw groove exceeds the prescribed value, both the large-diameter rolling elements and the small-diameter rolling elements transmit the power.

Abstract: The present invention provides a floating offshore wind turbine capable of suppressing yawing of a nacelle caused by a gyro effect which is a cause of adverse influence of power generating efficiency of a wind turbine and endurance of devices thereof. The floating offshore wind turbine 10 includes a rotor 11 which is rotated by wind, a nacelle 13 in which a rotation shaft 12 of the rotor 11 is accommodated, and a tower 15 including a turning seated bearing 14 which supports the nacelle 13 such that the nacelle 13 can turn with respect to a sea surface P to exert a weathercock effect. The tower is provided with yawing suppressing means 16 which suppresses yawing T of the nacelle 13. According to this, it is possible to suppress the yawing T of the nacelle 13 generated by a gyro effect caused by yawing ? generated in the floating body 31 by waves of the sea surface P.

Abstract: The present invention provides a floating offshore wind turbine capable of suppressing yawing of a nacelle caused by a gyro effect which is a cause of adverse influence of power generating efficiency of a wind turbine and endurance of devices thereof. The floating offshore wind turbine includes a rotor which is rotated by wind, a nacelle in which a rotation shaft of the rotor is accommodated, and a tower including a turning seated bearing which supports the nacelle such that the nacelle can turn with respect to a sea surface to exert a weathercock effect. The tower is provided with yawing suppressing means which suppresses yawing of the nacelle. According to this, it is possible to suppress the yawing of the nacelle generated by a gyro effect caused by yawing generated in the floating body by waves of the sea surface.

Abstract: The present invention relates to an alkali-free glass substrate, in which when two arbitrary sites in one main surface thereof are selected, an absolute value of a difference between a thermal shrinkage ratio in an arbitrary direction at one site and a thermal shrinkage ratio in a direction orthogonal to the arbitrary direction at another site is 2 ppm or less, provided that the thermal shrinkage ratio is calculated by measuring a deformation amount in a measuring direction of the glass substrate between before and after a heat treatment of raising a temperature from normal temperature to 600° C. at 100° C./hour, holding the glass substrate at 600° C. for 80 minutes, and lowering the temperature from 600° C. to normal temperature at 100° C./hour.

Abstract: A steering apparatus includes a steering shaft; a steered shaft; a ball screw mechanism; and a motor. A plurality of rolling elements includes large-diameter rolling elements and small-diameter rolling elements. A prescribed diameter difference is set such that when a magnitude of power transmitted between a first screw groove and a second screw groove is a prescribed value or less, only the large-diameter rolling elements transmit the power between the first screw groove and the second screw groove, and when the magnitude of the power transmitted between the first screw groove and the second screw groove exceeds the prescribed value, both the large-diameter rolling elements and the small-diameter rolling elements transmit the power.

Abstract: The present invention provides a floating offshore wind turbine capable of suppressing yawing of a nacelle caused by a gyro effect which is a cause of adverse influence of power generating efficiency of a wind turbine and endurance of devices thereof. The floating offshore wind turbine includes a rotor which is rotated by wind, a nacelle in which a rotation shaft of the rotor is accommodated, and a tower including a turning seated bearing which supports the nacelle such that the nacelle can turn with respect to a sea surface to exert a weathercock effect. The tower is provided with yawing suppressing means which suppresses yawing of the nacelle. According to this, it is possible to suppress the yawing of the nacelle generated by a gyro effect caused by yawing generated in the floating body by waves of the sea surface.

Abstract: A catalytic combustion reactor system comprises a heat exchange unit that comprises a bundle of open-ended tubes, the bundle having first and second collective ends, the first collective end adjoining a catalytic reactor that comprises a plurality of catalyst containing housings each of which is provided with an opening for the inflow of fluid for combustion and an opening for the outflow of fluid combustion product; an outer shell that envelopes the adjoined heat exchange unit and catalytic reactor and permits the flow of fluid to contact the heat exchange tube surfaces to absorb heat generated by the combustion reaction and to enter the inlet openings of the catalyst containing housings, the shell having a single fluid inlet in the area of the second collective end of the heat exchange unit, thereby allowing contact of the entire length of the tubes of the bundle with the incoming fluid for the exchange of heat; and a single outlet at the second collective end of the heat exchange unit which collects combus

Abstract: A catalytic combustion reactor, which comprises a heat exchanger unit and a catalytic structure unit, which are formed so as to have an integral outer shell; the heat exchanger unit housing a tube bundle, which includes a heat exchanger tube and tube plates provided at both ends of the heat exchanger tube; the catalytic structure unit housing a catalytic structure including openings, which, respectively, work as an inflow surface for a fluid to be subjected to combustion reaction and an outflow surface for the fluid after combustion reaction; the tube bundle and the catalytic structure being coupled such that one of the tube plates communicates with one of the openings of the catalytic structure at a connection portion in the reactor; and the outer shell being formed in such a shape to surround the tube bundle and the catalytic structure so as to ensure a communication passage between the heat exchanger unit and the other opening of the catalytic structure, is used to carry out combustion reaction.

Abstract: A process for treating a radioactive waste, includes drying a radioactive waste containing a radioactive substance(s) and a sodium compound(s), to convert it into a dried material, heating the dried material to convert it into a molten salt, and subjecting the molten salt to electrolysis using the salt as an anolyte and .beta.-alumina as a sodium ion-permeable membrane. This process can recover metallic sodium or sodium hydroxide, each of extremely low radioactivity from a radioactive waste containing a radioactive substance(s) and a sodium compound(s), at a high purity at a high current efficiency.

Abstract: A process for removing nitrogen oxides from oxygen rich exhaust gas containing nitrogen oxides and hydrocarbons using a catalyst composed of at least one active metal and zeolite having a molar ratio of SiO.sub.2 /Al.sub.2 O.sub.3 of at least 15, treated with a vapor of at least one silicon compound selected from alkylchlorosilanes, alkoxysilanes, alkoxyalkylsilanes, and silicon tetrachloride or treated with an alkoxysilane or silicon tetrachloride in an organic solvent.

Abstract: The invention provides an antifouling structure that excels in antifouling performance and durability, dispenses with maintenance work, poses no toxicity problem, and is easily handled. The antifouling structure is in a flexible thin sheet, and comprises a copper alloy and an insulating material layer. The copper alloy has a Be content of 0.2 to 2.8% by weight. The insulating layer material, for instance, is made of at least one of methyl methacrylate-modified natural rubber, nitrile rubber and chlorinated rubber. This rubber is dissolved in a suitable solvent for primer or other treatment, coated on the required surface area of the copper alloy layer, and dried to obtain an insulating material layer having a given thickness.

Abstract: The invention provides a method for making an organism deposit-inhibition pipe, which excels in corrosion resistance, dispenses with maintenance work, and offers no toxicity problems. A thin sheet comprising a copper alloy is wound spirally around a round bar and inserted into a resin pipe made up of an electrical insulating material. And the round bar is taken out. The obtained pipe has an inner wall which is covered with the copper thin sheet. The copper alloy has a Be content of 0.2 to 2.8% by weight, and is selected from, e.g., Be--Cu, Be--Co--Cu, Be--Co--Si--Cu and Be--Ni--Cu alloys. The beryllium-copper alloy has a remarkable antifouling effect and provides a continued liberation of copper ions.

Abstract: The invention provides a method for the lining of an organism deposit-inhibition structure, which enables that structure to be easily lined to an application surface, has superior characteristics to inhibit deposition of organisms and durability, dispenses with maintenance work, and offers no toxicity problems. A resin layer made up of an electrical insulating material is bonded to the inner wall periphery of a cylindrical pipe member. A metal gauze of a copper alloy is applied onto the surface of the resin layer. The metal gauze is either unfolded and drawn out or rolled over with the inner side turned outwards for its application to the surface of the resin layer. The copper alloy has a Be content of 0.2 to 2.8% by weight, and is selected from, e.g., Be--Cu, Be--Co--Cu, Be--Co--Si--Cu and Be--Ni--Cu alloys.