Abstract: A gas supply system includes a cabinet forming an internal space where a gas container is disposed, a fastening device movably installed in the internal space and fastened to a valve of the gas container in a state of being aligned with the valve, and a mobile robot device movable outside the cabinet, detachably connected to the fastening device, and configured to move the fastening device in a state of being connected to the fastening device.

Abstract: A gas supply system includes a cabinet in which a gas container is disposed, a fastening device movable with respect to the gas container, and fastenable to a valve of the gas container while aligned with the valve, a mobile robot device detachably connected to the fastening device and configured to move the fastening device, a three-dimensional (3D) vision camera configured to collect an image, and a processor configured to control an operation of the mobile robot device based on the image collected by the 3D vision camera.

Abstract: A method dynamically reconstructing a stress and strain field of a turbine blade includes providing a set of response measurements from at least one location on a turbine blade, band-pass filtering the set of response measurements based on an upper frequency limit and a lower frequency limit, determining an upper envelope and a lower envelope of the set of response measurements from local minima and local maxima of the set of response measurements, calculating a candidate intrinsic mode function (IMF) from the upper envelope and the lower envelope of the set of response measurements, providing an N×N mode shape matrix for the turbine blade, where N is the number of degrees of freedom of the turbine blade, when the candidate IMF is an actual IMF, and calculating a response for another location on the turbine blade from the actual IMF and mode shapes in the mode shape matrix.

Abstract: A method dynamically reconstructing a stress and strain field of a turbine blade includes providing a set of response measurements from at least one location on a turbine blade, band-pass filtering the set of response measurements based on an upper frequency limit and a lower frequency limit, determining an upper envelope and a lower envelope of the set of response measurements from local minima and local maxima of the set of response measurements, calculating a candidate intrinsic mode function (IMF) from the upper envelope and the lower envelope of the set of response measurements, providing an N×N mode shape matrix for the turbine blade, where N is the number of degrees of freedom of the turbine blade, when the candidate IMF is an actual IMF, and calculating a response for another location on the turbine blade from the actual IMF and mode shapes in the mode shape matrix.