Abstract: Provided are a method for manufacturing tower tube section including: forming a first tubular section and a second tubular section; joining the first tubular section and the second tubular section; forming a first notch on the first tubular section and a second notch on the second tubular section, where an opening is formed by the first tubular section and second tubular section, and a height of the first notch is less than a height of the first tubular section, and a height of the second notch is less than a height of the second tubular section; forming a door frame, where the door frame is embedded in the opening and is welded to the first tubular section and the second tubular section, and a door opening is provided to the door frame.

Abstract: Disclosed is an educational board game having a game surface and associated physical gaming elements that cooperatively simulate distinct phases of a supply chain, in which different physical gaming elements and game board segments correspond to those distinct supply chain phases. Mating, player-specific (e.g., color coded) material game pieces represent materials that may be combined to form a simulated product. Combined game pieces representing player-specific products may then be moved across the game board with players paying various supply chain costs and receiving payment for product sales through the segments of the supply chain. A random number generator, such as one or more dice, in combination with various cards, are used by the players to determine the occurrence of various supply chain risks, values, and projections as the players progress through the segments of the supply chain to ultimate sale of finished products.

Abstract: Disclosed is an educational board game having a game surface and associated physical gaming elements that cooperatively simulate distinct phases of a supply chain, in which different physical gaming elements and game board segments correspond to those distinct supply chain phases. Mating, player-specific (e.g., color coded) material game pieces represent materials that may be combined to form a simulated product. Combined game pieces representing player-specific products may then be moved across the game board with players paying various supply chain costs and receiving payment for product sales through the segments of the supply chain. A random number generator, such as one or more dice, in combination with various cards, are used by the players to determine the occurrence of various supply chain risks, values, and projections as the players progress through the segments of the supply chain to ultimate sale of finished products.

Abstract: A dam-shaped throttling block for use in a pipe, for the measurement of the flow rates of fluids. The shapes of four successive flat surfaces on the throttling block angularly-displaced relative one another in the flow direction, together with an aperture in the one of the flat surfaces extending parallel to the pipe longitudinal axis, create reduction of a cross-sectional area in one step from one that is unthrottled to one that is throttled, extending for a limited distance in the pipe, and then expansion of the cross-sectional area in two steps from the throttled one back to the unthrottled one so to provide for accurate measurements and an improved lifetime. Flow rates of highly viscous fluids and fluids that contain solid particles can be measured. Other benefits include reduced head loss, wide measurement range and reduced installation space.

Abstract: A dam-shaped throttling block for use in a pipe, for the measurement of the flow rates of fluids. The shapes of four successive flat surfaces on the throttling block angularly-displaced relative one another in the flow direction, together with an aperture in the one of the flat surfaces extending parallel to the pipe longitudinal axis, create reduction of a cross-sectional area in one step from one that is unthrottled to one that is throttled, extending for a limited distance in the pipe, and then expansion of the cross-sectional area in two steps from the throttled one back to the unthrottled one so to provide for accurate measurements and an improved lifetime. Flow rates of highly viscous fluids and fluids that contain solid particles can be measured. Other benefits include reduced head loss, wide measurement range and reduced installation space.