Abstract: An activated carbon fiber is obtained by activating: a polyphenylene ether fiber that contains a polyphenylene ether component having a rearrangement structure connected by a bond at an ortho-position in a repeating unit continuously bonded at a para-position; an infusibilized polyphenylene ether fiber obtained by infusibilizing the polyphenylene ether fiber; a flameproofed polyphenylene ether fiber obtained by flameproofing the polyphenylene ether fiber or the infusibilized polyphenylene ether fiber; or a carbon fiber obtained by carbonizing any of the polyphenylene ether fibers.

Abstract: A plant operating condition setting support system for supporting the setting of an operating condition of a plant that performs a process formed by devices includes: control devices that subject controlled devices to feedback control respectively; and an operating condition setting support device that provides integrated support for the setting of the control devices, which perform feedback control tasks respectively and independently. The operating condition setting support device includes: a measured value multiple acquisition unit that acquires measured values indicating states of the controlled devices, respectively; and a control device adjustment parameter determination unit that determines, based on the measured values acquired, control device adjustment parameters used by each of the control devices to determine manipulation variables for control that should be input to the controlled devices, according to a policy learned by deep reinforcement learning.

Abstract: In an infusibilized polyphenylene ether fiber of the present disclosure, an absorbance height ratio (A/B) between an absorbance height A at a wave number of 1694 cm?1 derived from C?O stretching vibration and an absorbance height B at a wave number of 1600 cm?1 derived from skeleton vibration due to carbon-carbon stretching of a benzene ring is 0.25 or more, and an absorbance height ratio (C/B) between an absorbance height C at a wave number of 1661 cm?1 derived from C?O stretching vibration and an absorbance height B at a wave number of 1600 cm?1 derived from skeleton vibration due to carbon-carbon stretching of a benzene ring is 0.75 or less, as measured by infrared spectroscopy.

Abstract: An object of the present invention is to provide a polyphenylene ether melt extrusion formed body which can be obtained by melt forming without mixing other resin components and has excellent properties such as mechanical strength, and a method for producing the same. The present invention relates to a polyphenylene ether melt extrusion formed body comprising a polyphenylene ether component which has a rearrangement structure having a continuous structure bonded at an ortho-position in a repeating unit continuously bonded at a para-position.

Abstract: The network structure has a three-dimensional random loop bonded structure composed of a thermoplastic elastomer continuous linear body having a fiber diameter of not less than 0.1 mm and not more than 3.0 mm, wherein the thermoplastic elastomer continuous linear body is complexed with a polyester-based thermoplastic elastomer and a polystyrene-based thermoplastic elastomer, and the network structure has a 70° C. compressive residual strain of not more than 35% and a rebound resilience of not more than 10%. Thereby, a network structure having a high vibration absorption property and being superior in thermal settling resistance is provided.

Abstract: To provide a net-like structure having excellent low resilience characteristics, cushioning properties, and durability. The net-like structure has a three-dimensional random loop bonded structure constituted of a continuous linear body made of a thermoplastic elastomer having a fiber diameter of 0.1-3.0 mm and a styrene content of 10-40 mass %, the net-like structure having an apparent density of 0.005-0.30 g/cm3 and a 40° C. compression residual strain of less than or equal to 35%.

Abstract: A net-like structure has a three-dimensional random loop bonded structure constituted of a thermoplastic elastomer continuous linear body having a fiber size of greater than or equal to 0.1 mm and less than or equal to 3.0 mm. The net-like structure has, in the thickness direction, a solid-section fiber main region mainly including solid-section fibers, a hollow-section fiber main region mainly including hollow-section fibers, and a mixed region including solid-section fibers and hollow-section fibers in a mixed state, located between the solid-section fiber main region and the hollow-section fiber main region. Both solid-section fiber main region-side residual strain of the net-like structure and hollow-section fiber main region-side residual strain of the net-like structure are less than or equal to 20%, and the difference between the solid-section fiber main region-side residual strain and the hollow-section fiber main region-side residual strain is less than or equal to 10 points.

Abstract: To provide a net-like structure having excellent low resilience characteristics, cushioning properties, and durability. The net-like structure has a three-dimensional random loop bonded structure constituted of a continuous linear body made of a thermoplastic elastomer having a fiber diameter of 0.1-3.0 mm and a styrene content of 10-40 mass %, the net-like structure having an apparent density of 0.005-0.30 g/cm3 and a 40° C. compression residual strain of less than or equal to 35%.