Abstract: A wind turbine includes: a collector base; a tunnel body; and a wind turbine. The collector base has an entire circumference at which a wind inflow part is formed. The tunnel body includes a lower front member that is vertically installed on the collector base, that has a substantially rectangular cross-sectional shape, and whose cross-sectional area is reduced linearly or curvilinearly from a wind inlet formed on the collector base side, and an upper member that linearly or curvilinearly expands from a position of the reduced cross-sectional area to the wind outlet at an upper end. The wind turbine is installed at a reduced part of the tunnel body such that an interval between long side parts of the tunnel body is minimum, and a ratio of short side parts and the long side parts of the tunnel body is 1 to 10 times.

Abstract: The wind turbine generator includes a rotating disk and a wind turbine generator including a wind turbine, a generator, and a wind collection body, and supports the wind turbine generator at a point away from a center of the rotating disk with a wind flow inlet of the wind collection body facing the center of the rotating disk.

Abstract: A wind-speed accelerating wind turbine has the wind turbine installed in the nacelle, the nacelle has a front nacelle member having a cross-section area formed so as to linearly or curvilinearly contract from a wind inlet to an installed position of the wind turbine and has a rear nacelle member having the contracted cross-section area formed so as to linearly or curvilinearly expand or maintain the same cross-section area from the installed position of the wind turbine to a wind outlet, and a wind dispersion part or a wind dispersion shape is provided at the wind outlet of the rear nacelle member.

Abstract: CT images near the pelvis are obtained before surgery, and a three-dimensional model of a pelvis part is created on a computer. The virtual three-dimensional bone model is used to plan an installation position of a guide instrument etc., and a virtual three-dimensional surgical site model including the guide instrument is constructed. Subsequently, during surgery, the guide instrument is installed, and three-dimensional images of a surgical site are obtained, and a measured three-dimensional surgical site model including the guide instrument is obtained. The virtual three-dimensional surgical site model and the measured three-dimensional surgical site model are compared, and an error between an ideal installation position of the guide instrument and an actual installation position of the guide instrument is detected to guide the operator to reduce the error.

Abstract: CT images near the pelvis are obtained before surgery, and a three-dimensional model of a pelvis part is created on a computer. The virtual three-dimensional bone model is used to plan an installation position of a guide instrument etc., and a virtual three-dimensional surgical site model including the guide instrument is constructed. Subsequently, during surgery, the guide instrument is installed, and three-dimensional images of a surgical site are obtained, and a measured three-dimensional surgical site model including the guide instrument is obtained. The virtual three-dimensional surgical site model and the measured three-dimensional surgical site model are compared, and an error between an ideal installation position of the guide instrument and an actual installation position of the guide instrument is detected to guide the operator to reduce the error.