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This systematic literature review explores the concept of unconscious gender bias within the maritime industry, focusing specifically on seafarers. Unconscious bias refers to implicit stereotypes and attitudes that influence decision-making processes without conscious awareness. In the context of seafaring, where diverse crews operate in confined spaces for extended periods, understanding and addressing unconscious bias becomes crucial for fostering inclusive and harmonious shipboard environments and mitigating gender bias. The review begins by examining theoretical frameworks related to unconscious bias, drawing from psychological, organizational behavior, and maritime literature. Various models, such as the Implicit Association Test (IAT) and social cognitive theories, are explored to provide a foundation for understanding how biases develop and manifest among seafaring populations. The maritime industry's unique characteristics, including hierarchical structures, cultural diversity, and isolation during voyages, are analyzed to identify specific factors that may contribute to the emergence of unconscious biases. Additionally, the review delves into studies addressing the impact of biases on decision-making, communication, and overall team dynamics within the maritime context. Furthermore, the review explores interventions and best practices proposed in the literature to mitigate unconscious bias among seafarers. Training programs, diversity initiatives, and cultural awareness campaigns are examined for their effectiveness in promoting a more inclusive and equitable maritime workplace. Based on this review, we conceptualize unconscious gender bias as a socio-technical problem and propose a theoretical framework that offers a combination of technological, organizational, and societal approaches as well as three main propositions to possibly mitigate the biased effects. Lastly, this paper considers future research on the management of unconscious gender bias in the organizational context. [ABSTRACT FROM AUTHOR]

The presence of the propeller affects the hydrodynamics of the rudder in the same way that the ship's hull interferes with the function of the propeller behind and vice versa. Therefore, the arrangement of the propeller and rudder is very important in determining the overall ship propulsion performance. This paper presents a numerical analysis of the KCS propulsion system at various longitudinal clearances with respect to the rudder position. The analysis was performed in a full ship configuration using the KCS hull, propeller, and rudder. The propeller clearance was varied on the basis of the existing KCS design, design adjustments, and recommendations from DNV by 0.124, 0.129, and 0.100 D. Propeller performance was analysed based on individual variations, interactions between the propeller and rudder, and variations in the number of meshes of 0.5, 1.0, and 1.5 mil. The flow distribution around the propeller and the pressure distribution of the rudder inflow onto the rudder surface are also discussed. Numerical examination revealed that DNV's recommended clearance of 0.100 D provided the best results and improved KCS propulsion performance compared with the existing design. The mesh sensitivity analysis revealed that the recommended clearance showed excellent performance in all mesh variations. In response to these findings, modification of the KCS propeller clearance following DNV recommendations would be beneficial to improve overall ship performance. [ABSTRACT FROM AUTHOR]