5,816 research outputs found

    A Cruciform Template for Unity in Ephesians 2.11-22

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    Using Appreciative Inquiry as a Tool for Congregational Change

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    Successful navigation of congregational change is difficult. Churches face numerous technical and adaptive challenges. While leaders can often guide their churches through technical change with logic, negotiation and even force, adaptive change requires a deeper form of reprogramming and congregational discernment. The College Church of Christ, having been in decline for nearly two decades, went through an intensive process of appreciative inquiry to elicit data that might fund a new, life-giving narrative. This article discusses that process and challenges that arose in moving on to next steps

    Rendezvous radar for the orbital maneuvering vehicle

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    This paper describes the development of the Rendezvous Radar Set (RRS) for the Orbital Maneuvering Vehicle (OMV) for the National Aeronautics and Space Administration (NASA). The RRS was to be used to locate, and then provide vectoring information to, target satellites (or Shuttle or Space Station) to aid the OMV in making a minimum-fuel-consumption approach and rendezvous. The RRS design is that of an X-Band, all solid-state, monopulse tracking, frequency hopping, pulse-Doppler radar system. The development of the radar was terminated when the OMV prime contract to TRW was terminated by NASA. At the time of the termination, the development was in the circuit design stage. The system design was virtually completed, the PDR had been held. The RRS design was based on Motorola's experiences, both in the design and production of radar systems for the US Army and in the design and production of hi-rel communications systems for NASA space programs. Experience in these fields was combined with the latest digital signal processor and micro-processor technology to design a light-weight, low-power, spaceborne radar. The antenna and antenna positioner (gimbals) technology developed for the RRS is now being used in the satellite-to-satellite communication link design for Motorola's Iridium telecommunications system

    Rendezvous radar for the orbital maneuvering vehicle

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    The Rendezvous Radar Set (RRS) was designed at Motorola's Strategic Electronics Division in Chandler, Arizona, to be a key subsystem aboard NASA's Orbital Maneuvering Vehicle (OMV). The unmanned OMV, which was under development at TRW's Federal Systems Division in Redondo Beach, California, was designed to supplement the Shuttle's satellite delivery, retrieval, and maneuvering activities. The RRS was to be used to locate and then provide the OMV with vectoring information to the target satellite (or Shuttle or Space Station) to aid the OMV in making a minimum fuel consumption approach and rendezvous. The OMV development program was halted by NASA in 1990 just as parts were being ordered for the RRS engineering model. The paper presented describes the RRS design and then discusses new technologies, either under development or planned for development at Motorola, that can be applied to radar or alternative sensor solutions for the Automated Rendezvous and Capture problem

    A Dynamic Model Investigation of the Effect of a Sharp-Edge Vertical Gust on Blade Periodic Flapping Angles and Bending Moments of a Two-Blade Rotor

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    A two-blade rotor having a diameter of 4 feet and a solidity of 0.037 was subjected to sharp-edge vertical gusts while being operated at various forward speeds to study the effect of the gusts on the blade periodic bending moments and flapping angles. Variables studied included gust velocity, collective pitch angle, flapping hinge offset, and tip-speed ratio. Dimensionless coefficients are derived for the periodic components of the incremental changes in blade flapping angles and bending moments which arise when a rotor blade penetrates a sharp-edge gust. Mental changes in both the flapping angles and bending moments are essentially proportional to gust velocity, and the coefficients express the ratio of these increments to gust velccity. The results show that the flapping coefficient usually increases with an increase in collective pitch angle, is generally dependent on tip-speed ratio, and is essentially independent of the amount of flapping hinge offset. The bending-moment coefficient is also dependent on collective pitch angle and tip-speed ratio. Expected reductions in bending moments are realized by the use of flapping hinges, and further reductions in bending moments are achieved as the amount of flapping hinge offset is increased. Comparison of the experimental results of this investigation with limited available theoretical results shows substantial agreement but indicates that the assumption that the response of the rotor to a sharp-edge gust is independent of the collective pitch angle prior to gust entry is probably inadequate

    The future higher education workforce in locally and globally engaged HEIs

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    The purpose of this four-year research project is to investigate the implications of the diversification of the academic workforce in the UK and to indicate how higher education institutions might plan strategically for their future staffing needs, and how sector bodies could support this. Through the study, we aim to develop a deeper understanding of the roles and career trajectories of staff in UK higher education who are involved in academic work. This focuses on those with conventional (i.e. teaching and research) roles and more recent forms of academic contract (e.g. teaching and scholarship). However, it also includes those performing academic roles (for example, in learning support, online learning, widening participation and recruitment) who do not have academic contracts. This concept paper aims to situate this research in the relevant literature, outlines some of the conceptual frameworks we are employing, describes the research design that flows from these and indicates some of the project outputs and planned outcomes. A companion review of recent literature (2013-16) is included as an appendix
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