232 research outputs found

    Shuttle passenger couch

    Get PDF
    Conceptual design and fabrication of a full scale shuttle passenger couch engineering model are reported. The model was utilized to verify anthropometric dimensions, reach dimensions, ingress/egress, couch operation, storage space, restraint locations, and crew acceptability. These data were then incorported in the design of the passenger couch verification model that underwent performance tests

    Flight representative positive isolation disconnect

    Get PDF
    Resolutions were developed for each problem encountered and a tradeoff analysis was performed to select a final configuration for a flight representative PID (Positive Isolation Disconnect) that is reduced in size and comparable in weight and pressure drop to the developmental PID. A 6.35 mm (1/4-inch) line size PID was fabricated and tested. The flight representative PID consists of two coupled disconnect halves, each capable of fluid isolation with essentially zero clearance between them for zero leakage upon disconnect half disengagement. An interlocking foolproofing technique prevents uncoupling of disconnect halves prior to fluid isolation. Future development efforts for the Space Shuttle subsystems that would benefit from the use of the positive isolation disconnect are also recommended. Customary units were utilized for principal measurements and calculations with conversion factors being inserted in equations to convert the results to the international system of units

    Analytical study of electrical disconnect system for use on manned and unmanned missions

    Get PDF
    The objective of this contract is to establish an optimum electrical disconnect system design(s) for use on manned and unmanned missions. The purpose of the disconnect system is to electrically mate and demate the spacecraft to subsystem module interfaces to accomplish orbital operations. The results of Task 1 and Task 2 of the effort are presented. Task 1 involves the definition of the functional, operational, and environmental requirements for the connector system to support the leading prototype candidate concepts. Task 2 involves the documentation review and survey of available existing connector designs

    Final analysis/design and prototype construction of a selected mobility and restraint device Final report

    Get PDF
    Underwater tests of prototype construction of selected mobility and restraint devic

    Spacecraft utensil/hand cleansing fixture

    Get PDF
    A system concept for an inflight utensil/hand cleansing fixture is described which includes the following features: (1) capability for efficient cleansing and rinsing of utensils or hands, and (2) provision for general waste fluid disposal. The design concept provides for the capability of functioning for a 30 day shuttle mission containing seven occupants/users. The long range goal is to provide a functioning system capable of operating for missions of at least 120 days. The fixture is a self-contained unit that can be installed in the standard water interface requirements. Service to the unit is a single source of unheated potable water and water is discharged from the unit into a single return waste connection. In addition, the design includes provisions for the intake and discharge of purge air and the discharge of evolved gases. Both the air and the gases are filtered or processed in the assembly before releasing them into the habitability area

    Architectural/Environmental Handbook for Extraterrestrial Design

    Get PDF
    Handbook on environmental and space utilization criteria for design of extraterrestrial manned spacecraft and shelter

    Constructing women’s leadership representation in the UK press during a time of financial crisis : gender capitals and dialectical tensions

    Get PDF
    A continuing challenge for organizations is the persistent underrepresentation of women in senior roles, which gained a particular prominence during the global financial crisis (GFC). The GFC has raised questions regarding the forms of leadership that allowed the crisis to happen and alternative proposals regarding how future crises might be avoided. Within this context women’s leadership has been positioned as an ethical alternative to styles of masculinist leadership that led to the crisis in the first place. Through a multimodal discursive analysis this article examines the socio-cultural assumptions sustaining the gendering of leadership in the popular press to critically analyse how women’s leadership is represented during the GFC of 2008–2012. Highlighting the media’s portrayal of women’s leadership as a gendered field of activity where different forms of gender capital come into play, we identify three sets of dialectics: women as leaders and women as feminine, women as credible leaders and women as lacking in credibility, and women as victims and women as their own worst enemies. Together, the dialectics work together to form a discursive pattern framed by a male leadership model that narrates the promise of women leaders, yet the disappointment that they are not men. Our study extends understandings regarding how female and feminine forms of gender capital operate dialectically, where the media employs feminine capital to promote women’s positioning as leaders yet also leverages female capital as a constraint. We propose that this understanding can be of value to organizations to understand the impact and influence of discourse on efforts to promote women into leadership roles

    How women in the executive influence government stability

    Get PDF
    Does the gender of prime ministers and cabinet ministers influence cabinet duration? We argue that the risk for early termination of cabinets decreases with women’s presence in the executive. As scholars of social psychology indicate, women apply more consensual and compromise-oriented conflict resolution strategies. Disputes between or within governing parties, which ultimately lead to early termination, should therefore be less likely to emerge and escalate if the government is led by a woman or includes numerous female members. To test this rationale, we analyse a newly compiled, comprehensive dataset covering 676 governments in 27 European countries between 1945 and 2018 by relying on event history analysis. The results suggest that cabinets with a higher proportion of female cabinet members experience a lower risk of early cabinet termination. This article contributes to the study of women as political leaders through additional evidence for the gendered nature of leadership styles

    Swiss residents' speciality choices – impact of gender, personality traits, career motivation and life goals

    Get PDF
    BACKGROUND: The medical specialities chosen by doctors for their careers play an important part in the development of health-care services. This study aimed to investigate the influence of gender, personality traits, career motivation and life goal aspirations on the choice of medical speciality. METHODS: As part of a prospective cohort study of Swiss medical school graduates on career development, 522 fourth-year residents were asked in what speciality they wanted to qualify. They also assessed their career motivation and life goal aspirations. Data concerning personality traits such as sense of coherence, self-esteem, and gender role orientation were collected at the first assessment, four years earlier, in their final year of medical school. Data analyses were conducted by univariate and multivariate analyses of variance and covariance. RESULTS: In their fourth year of residency 439 (84.1%) participants had made their speciality choice. Of these, 45 (8.6%) subjects aspired to primary care, 126 (24.1%) to internal medicine, 68 (13.0%) to surgical specialities, 31 (5.9%) to gynaecology & obstetrics (G&O), 40 (7.7%) to anaesthesiology/intensive care, 44 (8.4%) to paediatrics, 25 (4.8%) to psychiatry and 60 (11.5%) to other specialities. Female residents tended to choose G&O, paediatrics, and anaesthesiology, males more often surgical specialities; the other specialities did not show gender-relevant differences of frequency distribution. Gender had the strongest significant influence on speciality choice, followed by career motivation, personality traits, and life goals. Multivariate analyses of covariance indicated that career motivation and life goals mediated the influence of personality on career choice. Personality traits were no longer significant after controlling for career motivation and life goals as covariates. The effect of gender remained significant after controlling for personality traits, career motivation and life goals. CONCLUSION: Gender had the greatest impact on speciality and career choice, but there were also two other relevant influencing factors, namely career motivation and life goals. Senior physicians mentoring junior physicians should pay special attention to these aspects. Motivational guidance throughout medical training should not only focus on the professional career but also consider the personal life goals of those being mentored
    corecore