Abstract: A surroundings monitoring system for a work machine includes an image capturing unit configured to capture an image of surroundings of the work machine and a display device configured to display the image of the surroundings of the work machine captured by the image capturing unit and a mark representing the position of a monitoring target. The display device is configured to display the mark in two or more different display forms.

Abstract: An etching method is performed using a plasma processing apparatus that includes a processing chamber equipped with a support stage that accommodates a substrate, a first annular member disposed around the substrate and at least a part of the first annular member is disposed in a space between a lower surface of an outer peripheral portion of the substrate and an upper surface of the support stage, and a second annular member disposed outside the first annular member. The etching method includes adjusting a dielectric constant in the space using the first annular member in accordance with consumption of the second annular member; and etching the substrate.

Abstract: An etching method is performed using a plasma processing apparatus that includes a processing chamber equipped with a support stage that accommodates a substrate, a first annular member disposed around the substrate and at least a part of the first annular member is disposed in a space between a lower surface of an outer peripheral portion of the substrate and an upper surface of the support stage, and a second annular member disposed outside the first annular member. The etching method includes adjusting a dielectric constant in the space using the first annular member in accordance with consumption of the second annular member; and etching the substrate.

Abstract: In a sheet or signature (printer folder sheet) accumulating a front positioning part 44 configured, when a sheet has entered a sheet accumulating part 40, to move away from a rear positioning part 46 such that a distance of the front positioning part 44 from the rear positioning part 46 is larger than a length of the sheet in a carrying-in direction of the sheet, and, after a front edge in the carrying-in direction of the sheet has contacted the front positioning part 44, to move closer to the rear positioning part 46.

Abstract: In a sheet or signature (printer folder sheet) accumulating a front positioning part 44 configured, when a sheet has entered a sheet accumulating part 40, to move away from a rear positioning part 46 such that a distance of the front positioning part 44 from the rear positioning part 46 is larger than a length of the sheet in a carrying-in direction of the sheet, and, after a front edge in the carrying-in direction of the sheet has contacted the front positioning part 44, to move closer to the rear positioning part 46.