Abstract: A booth is made usable by making a reservation, and has an opening that allows a user to enter and exit, in which a top plate of a desk is installed in a space surrounded by a floor and a side wall. A development area or a development position of the top plate is changeable in the space.

Abstract: Provided are copper microparticles which have exceptional oxidation resistance, in which oxidation is reduced even when the copper microparticles are held at a firing temperature in an oxygen-containing atmosphere, and in which sintering also occurs. The copper microparticles have a particle diameter of 10-100 nm, have a surface coating material, and are such that, after the copper microparticles are held for one hour at a temperature of 400° C. in an oxygen-containing atmosphere, the particle diameter exceeds 100 nm while a copper state is retained.

Abstract: An apparatus includes an estimator. The estimator estimates, based on a reservation status, an air quality within a space at a start time of a reservation to be made for the space.

Abstract: A production method for silver fine particles retain capabilities such as conductivity and make it possible to form wiring at even lower temperatures; and silver fine particles. A silver fine particle production method in which silver powder is used to produce silver fine particles by means of a gas phase method. The silver fine particle production method has a step for supplying an organic acid to the silver fine particles. The gas phase method is, for example, a plasma method or a flame method. The silver fine particles have a surface coating that includes at least a carboxyl group.

Abstract: Provided are: a production method for silver fine particles that retain capabilities such as conductivity and make it possible to form wiring at even lower temperatures; and silver fine particles. A silver fine particle production method in which silver powder is used to produce silver fine particles by means of a gas phase method. The silver fine particle production method has a step for supplying an organic acid to the silver fine particles. The gas phase method is, for example, a plasma method or a flame method. The silver fine particles have a surface coating that includes at least a carboxyl group.

Abstract: A booth that has an opening through which a user enters and exits the booth and a desk and a chair installed in a space surrounded by a floor and a side wall, the booth includes a movable sound insulation member that is installable to enclose the user in a case where the user is below a top portion of the booth while being in the booth.

Abstract: A booth includes an internal space configured to be used by a user, a door which is controlled to unlock in an electric-powered manner when an information is detected based on a user operation, and a monitor screen which is used in order to project an image output from a device brought by the user.

Abstract: A booth includes a replaceable side wall that surrounds an internal space to be used by a user, and the side wall is provided with at least one entrance/exit door.

Abstract: Provided is a fine particle production apparatus and a fine particle production method capable of easily obtaining surface treated fine particles. The fine particle production apparatus produces fine particles using feedstock by means of a gas-phase process. The apparatus includes a treatment section configured to transform the feedstock into a mixture in a gas phase state by means of the gas-phase process, a feedstock supply section configured to supply the feedstock to the treatment section, a cooling section configured to cool the mixture in a gas phase state in the treatment section using a quenching gas containing an inert gas, and a supply section configured to supply a surface treating agent to fine particle bodies in a temperature region in which the surface treating agent is not denatured, the fine particle bodies being produced by cooling the mixture in the gas phase state with the quenching gas.

Abstract: Fine particles that can be sintered and grow to 100 nm or larger without oxidation even when retained at a baking temperature in an oxygen-containing atmosphere and that can suppress oxidation in a long-term preservation in the air or other oxygen-containing atmospheres, a method of producing the fine particles, and a method of producing fine particles that can suppress oxidation in a collecting process after the production of the fine particles. A fine particle production method for producing fine particles using feedstock powder by means of a gas-phase process includes a step of producing fine particle bodies by converting the feedstock powder into a mixture in a gas phase state using a gas-phase process and cooling the mixture in a gas phase state with a quenching gas containing an inert gas and a hydrocarbon gas having 4 or less carbon atoms, and a step of supplying an organic acid to the produced fine particle bodies.

Abstract: A cocoa substitute in which a supplementary raw material produced in a step for manufacturing a food product is used. A cocoa substitute containing a protein composition derived from beer lees can be used as a raw material in a chocolate-like food product, etc.

Abstract: A booth that is available for use when reserved and that is installed with an image forming apparatus accommodated therein, the booth including a panel having a first opening through which the image forming apparatus accommodated in the booth is operable by a person who has entered the booth; and a panel having a second opening through which the image forming apparatus accommodated in the booth is operable by a person from outside the booth.

Abstract: A booth is made usable by making a reservation, and has an opening that allows a user to enter and exit, in which a top plate of a desk is installed in a space surrounded by a floor and a side wall. A development area or a development position of the top plate is changeable in the space.

Abstract: A booth that has an opening through which a user enters and exits the booth and a desk and a chair installed in a space surrounded by a floor and a side wall, the booth includes a movable sound insulation member that is installable to enclose the user in a case where the user is below a top portion of the booth while being in the booth.

Abstract: A booth in which a desk is provided in a space surrounded by a floor, side walls, and a top and that is movable with a component for movement provided at the floor, the booth includes a handle for a movement operation of the booth.

Abstract: Provided are a fine particle production apparatus and a fine particle production method that can control the particle sizes of fine particles, and efficiently produce a large amount of fine particles having good particle size uniformity. The present invention comprises: a raw material supply unit which supplies raw materials for fine particle production into thermal plasma flame; a plasma torch in which the thermal plasma flame is generated, and which evaporates the raw material supplied by the raw material supply unit by means of the thermal plasma flame to form a mixture in a gas phase state; and a plasma generation unit which generates thermal plasma flame inside the plasma torch.

Abstract: A fine particle manufacturing apparatus and a fine particle manufacturing method are provided. The apparatus includes a raw material supply part supplying a raw material; a plasma torch in which the thermal plasma flame is generated and the raw material supplied by the raw material supply part is vaporized by using the thermal plasma flame to form a mixture in a gas phase state; and a plasma generation part generating the thermal plasma flame inside the plasma torch. The plasma generation part includes a first coil encircling the plasma torch; a second coil encircling the plasma torch and disposed below the first coil; a first power supply part supplying a high-frequency electric current to the first coil; and a second power supply part supplying an amplitude-modulated high-frequency electric current to the second coil. The first coil and the second coil are arranged in the longitudinal direction of the plasma torch.

Abstract: An information processing system includes a processor configured to: acquire reservation information, the reservation information being information about a reservation of a booth; and make a determination regarding an improvement of an air environment by an improvement mechanism that improves the air environment provided inside the booth, on a basis of the acquired reservation information.

Abstract: Provided are a fine particle manufacturing apparatus and a fine particle manufacturing method, which manufacture smaller fine particles. The fine particle manufacturing apparatus has: a raw material supply unit that supplies raw materials for producing fine particles into a thermal plasma flame; a plasma torch in which the thermal plasma flame is generated and the raw materials supplied by the raw material supply unit is evaporated by the thermal plasma flame to form a mixture in a gaseous state; a plasma generation unit that generates the thermal plasma flame inside the plasma torch; and a gas supply unit that supplies quenched gas to the thermal plasma flame, wherein the gas supply unit supplies the quenched gas with time modulation of the supply amount of the quenched gas.

Abstract: A booth includes a replaceable side wall that surrounds an internal space to be used by a user, and the side wall is provided with at least one entrance/exit door.