Abstract: A storage reorganizing system subdivides a reorganizable storage space into tile areas. Each tile area either contains file data or does not contain file data. The data in a tile area that contains file data is referred to as a tile. A tile area that does not contain file data is referred to as a vacancy. Tiles that are not yet located in their goal positions, as defined by a recorded goal state definition, are opportunistically moved to available vacancies that are the goal positions for such tiles as the vacancies become available. Each tile move leaves behind it a new vacancy. The speed of opportunistic tile moving is optimized by first locating the largest vacancies that are each to be filled with the largest amount of tile data and by first moving tiles to such vacancies. One goal state produces a defragmented set of files. Another goal state produces an intentionally fragmented set of files.

Abstract: Aircraft door of the type which during the flight is pressed all around against the door case under influence of the cabin pressure. During opening and closing the door moves by means of a hinge mechanism with two mutually parallel rotational axes and an intermediate hinge part, one of the rotational axis being connected to the door and the other being connected to the door case. When the door is opened during a first motion phase the intermediate hinge part carries out a rotational movement around the rotational axis connected to the door case whereby simultaneously the angle between the door and the intermediate hinge part is decreased, and thereafter in a second motion phase the intermediate hinge part carries out a rotational movement in the opposite direction around the rotational axis connected to the door case. When the door is closed these movements are carried out with reversed rotational directions and in reverse order.