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This paper describes the design of a robust automatic guidance system for a combine harvester. The automatic steering system controls the harvester based on the measured position of the swath on the field. Cheap Ray Ban Wayfarer The swath is detected using a laser scanner. The translation and rotation of the machine are taken into account to recalculate the swath's relative position every time step. With the help of a model of the harvester (derived in this paper), the desired wheel position is calculated in function of the desired bearing change. The desired wheel position is then transmitted over the CAN network of the harvester to the actuator. The conventional framework for cross-sectional studies of industrial organisation focuses on the hypothesised relations among structure, conduct and performance (SCP). This paper investigates these relationships for the food and beverage manufacturing industries in a European country, i.e., Greece. 3SLS method is used to estimate the parameters of the profitability, concentration and advertising model for a sample of 38 four-digit industries in 1994. The main results, which Ray Ban Aviator 3025 are in line with the relevant empirical work, show that profitability is determined by advertising, which, in turn, is affected by both profitability and concentration, while the latter is determined by economies of scale.