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Sexual harassment on public transport puts women at risk of mental health problems, apart from disrupting their lives and the harmful social consequences. This is especially the case for Pakistani women, for whom sexual harassment has been on the rise for the past decade. This study aims to explore how Pakistani women use strategies to cope with sexual harassment when using public transport and its mediating role in their issues with mental health.

Given that the data collection task on such a culturally sensitive topic was crucial, a mobile application for anonymized data collection was used, which appeared to be an effective strategy. Using the mobile application, 1,054 women who use public transport submitted their responses; however, the analysis is based on 250 usable responses. Their experience of harassment was measured using the Sexual Harassment Experience Questionnaire, their mental health using the Depression Anxiety Stress Scales and their coping strategies by the Brief Cope Inventory.

The results indicate that adaptive coping is a significant negative mediator between sexual harassment and mental well-being, whereas maladaptive coping is non-significant. Adaptive coping, i.e. “Acceptance” to admit the reality that the problem exists with all, and “Religion” to seek help spiritually to deal with the problem. Unfortunately, the findings show no suitable coping means to deal with the impact of sexual harassment on women who travel on public transport. This study also illustrates that using the right technologies can encourage participants to submit responses for culturally sensitive topics.

This study provides insight into the experience of street harassment in Pakistani women and how it is related to mental health. This study also explores the role of adaptive and maladaptive coping as an intervening variable between street harassment and mental health.

Winglets play a major role in saving fuel costs because they reduce the lift-induced drag formed at the wingtips. The purpose of this paper is to obtain the best orientation of the winglet for the Office National d’Etudes et de Recherches Aérospatiales (ONERA) M6 wing at Mach number 0.84 in terms of lift to drag ratio.

A computational fluid dynamics analysis of the wing-winglet configuration based on the ONERA M6 airfoil on drag reduction for different attack angles at Mach 0.84 was performed using analysis of systems Fluent. First, the best values of cant and sweep angles in terms of aerodynamic performance were selected by performing simulations. The analysis included cant angle values of 30°, 40°, 45°, 55°, 60°, 70° and 75°, while for the sweep angles 35°, 45°, 55°, 65° and 75° angles were used. The aerodynamic performance was measured in terms of the obtained lift to drag ratios.

The results showed that slight alternations in the winglet configuration can improve aerodynamic performance for various attack angles. The best lift to drag ratio for the winglet was achieved at a cant angle of 30° and a sweep angle of 65°, which caused a 5.33% increase in the lift to drag ratio. The toe-out angle winglets as compared to the toe-in angles caused the lift to drag ratio to increase because of more attached flow at its surface. The maximum value of the lift to drag ratio was obtained with a toe-out angle (−5°) at an angle of attack 3° which was 2.53% greater than the zero-toed angle winglet.

This work is relatively unique because the cant, sweep and toe angles were analyzed altogether and led to a significant reduction in drag as compared to wing without winglet. The wing model was compared with the results provided by National Aeronautics and Space Administration so this validated the simulation for different wing-winglet configurations.