Abstract: A golf club head including a club face defined by a toe end, a heel end, a top rail and a sole. The golf club head including a plurality of grooves disposed on the club face between the top rail and the sole. Each groove extends between the toe end and the heel end. Widths of the grooves vary in a direction extending between the heel end and the toe end.

Abstract: A projector assembly and method for automatically correcting keystone distortion includes an image correction engine, a light engine, a projection lens having a projection axis, a processor, a directional sensor and an inclination sensor. The sensors determine the absolute vertical and horizontal direction of the projection axis. The inclination sensor determines the vertical zero reference. The direction sensor is used to determine the horizontal zero reference. The processor calculates vertical and horizontal difference angles between the absolute directions and zero reference values in the vertical and horizontal directions. Using difference angles, the processor calculates the keystone distortion and instructs the image correction engine to apply geometric and brightness correction to the image data proportional and inverse to the keystone distortion and lens parameters (field of view, focal length, imperfections, etc) such that the image projected onto a viewing screen, is free from keystone distortion.

Abstract: A projector assembly and projection method for determining the amount of keystone distortion present in projection system and automatically correcting said distortion. The projection assembly includes an image correction engine, a light engine, projection lens having a projection axis, a processor, a directional sensor and an inclination sensor. The sensors determine the absolute vertical and horizontal direction of the projection axis and the processor calculates the vertical and horizontal difference angle by calculating the difference between the absolute vertical and horizontal directions and the vertical and horizontal zero references. The vertical zero reference is determined by the inclination sensor.

Abstract: A novel promoter, ribosome-binding site-encoding DNA, and a number of signal peptide-encoding DNA sequences are described for use in Bacillus and other host cells. The compounds are useful in constructing expression vectors for use in Bacillus and other host cells and drive expression and secretion of proteins such as nuclease and human growth hormone. In addition, a general method for obtaining cells with increased abilities to express and secrete heterologous gene products is described.

Abstract: A golf club head including a club face defined by a toe end, a heel end, a top rail and a sole. The golf club head including a plurality of grooves disposed on the club face between the top rail and the sole. Each groove extends between the toe end and the heel end. Depths of the grooves vary in a direction extending between the top rail and the sole and in a direction extending between the heel end and the toe end. Widths of each of the plurality of grooves vary in a direction extending between the heel end and the toe end.

Abstract: Embodiments of grooves of golf club heads and methods to manufacture grooves of golf club heads are generally described herein. Other embodiments may be described and claimed.