Abstract: An aerosol generating apparatus includes a load that generates heat upon receipt of electric power from a power supply and atomizes an aerosol source, an element that is used to acquire a value related to a temperature of the load, a retention unit that retains an aerosol source supplied from a storage to allow the retained aerosol source to be in a feasible state of being heated by the load, and a control unit configured to perform a control to increase a retaining quantity of the retained aerosol source or a control to improve the possibility of increasing the retaining quantity, at at least one of a time of starting a supply of the electric power from to the load and a time of completing the supply of the electric power to the load, upon detection of a dry state or a sign of the dry state

Abstract: A yarn that contains at least one potential-generating filament constructed to generate an electric potential in response to energy from the outside of the at least one potential-generating filament, the yarn having a total linear density of 90 dtex or more.

Abstract: A cylindrical structure including a first cloth including a piezoelectric thread that generates an electric potential from external energy, a second cloth including a piezoelectric thread that generates an electric potential from external energy, and a connection portion connecting the first cloth and the second cloth, wherein the first cloth and the second cloth forms a side face of the cylindrical structure.

Abstract: A method for producing low-molecular-weight polytetrafluoroethylene which includes: (1) irradiating high-molecular-weight polytetrafluoroethylene with radiation to a dose of 250 kGy or higher substantially in the absence of oxygen to provide low-molecular-weight polytetrafluoroethylene having a melt viscosity at 380° C. of 1.0×102 to 7.0×105 Pa·s. Also disclosed is a powder containing the low-molecular-weight polytetrafluoroethylene, the powder being substantially free from any of perfluorooctanoic acid and salts thereof.

Abstract: A manufacturing method of epitaxial wafers is provided, where an epitaxial wafer manufacturing process including loading a wafer into a chamber of an epitaxial wafer manufacturing apparatus, growing an epitaxial film on the wafer to manufacture an epitaxial wafer, and unloading the epitaxial wafer to an outside of the chamber, is performed for a plurality of times and, subsequently, an interior of the chamber is cleaned. While the epitaxial film is grown, the wafer supported by the susceptor is heated by a first heater and an outer rim portion of the susceptor is heated by a second heater.

Abstract: The disclosure aims to provide a method for producing a refined polytetrafluoroethylene powder, in which a short-chain fluorine compound is reduced from low-molecular-weight polytetrafluoroethylene. Method for producing a refined polytetrafluoroethylene powder, including a step of reducing a short-chain fluorine compound from a low-molecular weight polytetrafluoroethylene powder obtained by radical polymerization. The step includes at least reducing a compound represented by following formula (1) to 179 ppb or less and a compound represented by following formula (2) to 6900 ppb or less. Formula (1): (H—(CF2)m—COO)pM1 (wherein m; M1; and p are as defined in the disclosure). Formula (2): (H—(CF2)n—SO3)qM2 (wherein n; M2; and q are as defined in the disclosure).

Abstract: An aerosol generation device comprises: a power source; a storage part stores an aerosol source or an aerosol substrate that holds an aerosol source; a load that has a temperature-variable electrical resistance value and, by generating heat due to supply of power from the power source, atomizes aerosol source supplied from the storage part or aerosol source held by the aerosol substrate; a circuit electrically connects the power source and the load; and a control part that, on the basis of a first value of the voltage applied to the entire circuit and a second value of the voltage applied to a part of the circuit at which the applied voltage changes as a result of changes in the temperature of the load, determines whether there is a shortage of aerosol source that can be supplied from the storage part or aerosol source held by the aerosol substrate.

Abstract: An aerosol generating device which can infer or detect the state of at least one of a storage and a receptacle for an aerosol source, the aerosol generation device includes: a load which atomizes the aerosol source by generating heat with power supplied from a power source; a sensor which outputs values relating to the temperature of the load; and a controller. The controller infers or detects the state of at least one of the storage and the receptacle based on at least an output value of the sensor in a first power supply cycle, an output value of the sensor in a second power supply cycle, or a value relating to behavior of the temperature of the load in the second power supply cycle.

Abstract: In order to provide an aerosol generating device which can determine, at an earlier stage, the occurrence of depletion or shortage pf the aerosol source, this aerosol generating device (100) includes: a storage unit (116A) which stores an aerosol source or an aerosol substrate (116B) which holds an aerosol source; a load (132) which atomizes the aerosol source by generating heat with power supplied from a power supply (110); a sensor (112) which outputs values related with the temperature of the load (132); and a control unit (106). The control unit (06), in response to an aerosol generation request, supplies power from the power supply (110) to the load (132) to carry out a power supply cycle, and, on the basis of an index based on the deviation of the output values of the sensor (112) in a single power supply cycle, determines the occurrence of depletion or shortage of the aerosol source in the storage unit (116A) or the aerosol substrate (116B).

Abstract: A knitted fabric structure that includes a piezoelectric yarn having a piezoelectric material that produces a surface potential by input of an external force from an outside of the piezoelectric yarn; and an elastic yarn having stretchability knitted together with the piezoelectric yarn, wherein the piezoelectric yarn has a mixing ratio of 5% or more based on a whole of the knitted fabric structure.

Abstract: Provided is an aerosol generation device that has few necessary structural elements and highly accurately detects shortage of an aerosol source.

Abstract: An aerosol generating device which can infer or detect the state of at least one of a storage and a receptacle for an aerosol source, the aerosol generation device includes: a load which atomizes the aerosol source by generating heat with power supplied from a power source; a sensor which outputs values relating to the temperature of the load; and a controller. The controller infers or detects the state of at least one of the storage and the receptacle based on at least an output value of the sensor in a first power supply cycle, an output value of the sensor in a second power supply cycle, or a value relating to behavior of the temperature of the load in the second power supply cycle.

Abstract: A piezoelectric fiber composite that includes a substrate having a first expansion and contraction rate, a piezoelectric fiber assembly having piezoelectric fibers that generate electrical charges upon application of external energy and has a second expansion and contraction rate different from the first expansion and contraction rate of the substrate, and a joint portion that joins the substrate and the piezoelectric fiber assembly.

Abstract: An aerosol generation device suppresses the effect of errors in structural elements on the accuracy with which shortage of an aerosol source is detected. The aerosol generation device includes a power source; a load that has a temperature-variable electrical resistance value and atomizes an aerosol source by generating heat due to supply of power from the power source; a first circuit that for the load to atomize the aerosol source; a second circuit connected in parallel to the first circuit, has a higher electrical resistance value than the first circuit, and is used to detect voltage that changes as a result of changes in the temperature of the load; an acquisition part that acquires the value of voltage applied to the second circuit and the load; and sensors that output the value of the voltage that changes as a result of changes in the temperature of the load.

Abstract: Provided is an aerosol generation device that can more accurately detect shortage of an aerosol source after a cartridge has been replaced. An aerosol generation device 100A that comprises: a power source 110; a load 132 that has temperature-resistance value characteristics, has a temperature-variable electrical resistance value, and atomizes an aerosol source by generating heat due to supply of power from the power source 110; memory 114 that stores the temperature-resistance value characteristics; a sensor 112 that outputs a value that is related to the resistance value of the load 132; and a control part 106 that, on the basis of the correspondence between the output value from the sensor 112 and an estimated value for the temperature of the load 132 that corresponds to the output value, calibrates the stored temperature-resistance value characteristics.

Abstract: Powder including low molecular weight polytetrafluoroethylene having a melt viscosity of 1×102 to 7×105 Pa·s at 380° C., having a melt viscosity of 1×102 to 7×105 Pa·s at 380° C., having an average particle size of 1.0 to 50 ?m, and containing 30 or more carboxyl groups at ends of the molecule chain per 106 carbon atoms in the main chain, wherein the powder is substantially free from C8-C14 perfluorocarboxylic acids and salts thereof.

Abstract: Provided is an aerosol generation device that suppresses the effect that errors in the production of structural elements have on the accuracy with which shortage of an aerosol source is detected. An aerosol generation device that comprises: a power source; a load that has a temperature-variable electrical resistance value and atomizes an aerosol source by generating heat due to supply of power from the power source; a first circuit that is used for the load to atomize the aerosol source; a second circuit that is connected in parallel to the first circuit, has a higher electrical resistance value than the first circuit, and is used to detect voltage that changes as a result of changes in the temperature of the load; an acquisition part that acquires the value of voltage that is applied to the second circuit and the load; and sensors that output the value of the voltage that changes as a result of changes in the temperature of the load.

Abstract: Provided is an aerosol generation device that suppresses the effect that errors in the production of structural elements have on the accuracy with which shortage of an aerosol source is detected. An aerosol generation device that comprises: a power source 110; a load 132 that has a temperature-variable electrical resistance value and atomizes an aerosol source by generating heat due to supply of power from the power source 110; a first circuit 202 that is used for the load 132 to atomize the aerosol source; a second circuit 204 that is connected in parallel to the first circuit 202, has a higher electrical resistance value than the first circuit 202, and is used to detect voltage that changes as a result of changes in the temperature of the load 132; an acquisition part that acquires the value of voltage that is applied to the second circuit 204 and the load 132; and sensors 112B, 112D that output the value of the voltage that changes as a result of changes in the temperature of the load 132.

Abstract: An antibacterial twisted yarn including a first fiber and a second fiber having a shorter length than the first fiber and twisted together with the first fiber, wherein at least one of the first fiber and the second fiber includes a piezoelectric fiber that generates a charge by application of external energy.

Abstract: A fiber with which a further enhanced electric field intensity is obtained when a compressive force is applied across the longitudinal axis of the fiber. The fiber is composed of a potential generating filament having at least one interior angle of less than 120° in a contour shape in a sectional view in a direction perpendicular to a longitudinal axis of the fiber.