Storage Tube Processor for High Resolution Radar

Coordinated Science Laboratory was formerly known as Control Systems LaboratoryContract DA-36-039-SC-5669

Final Report on C.S.F. Storage Tubes

Coordinated Science Laboratory was formerly known as Control Systems LaboratoryContract DA-36-039-SC-8512

Optical Simulation of Radar Resolution

Control Systems Laboratory changed its name to Coordinated Science LaboratoryContract DA-36-039-SC-5669

Preliminary Studies and Test Results of a Superconducting Hysteresis Motor with Multiphase Windings and Variable Number of Magnetic Poles

Part 15: Energy TransformationInternational audienceIn this paper a procedure for determining the number of different synchronous speeds that can be obtained from the stator of a drum motor as a function of the number of slots is presented. This preliminary study is foreseen for a hysteresis high-temperature superconducting motor, but the approach is directly applied in conventional motors. The targeted device has multiphase windings, in order to achieve full flexibility in torque-speed space through electronic variation of magnetic poles. Simulations are performed in order to achieve a qualitative understanding of the behaviour of the motor, namely in what concerns to torque and settling times from initial to synchronous speed. A prototype with eighteen slots in the stator and a bulk YBCO rotor is described and built, and experimental values of torque are obtained

Resisting the ‘protest business’: bureaucracy, post-bureaucracy and active membership in social movement organizations

Over the past few decades, the legitimacy of membership-based social movement organizations (SMOs) has been called into question (Bosso, 2005; Jordan and Maloney, 1997, 2007; Putnam, 2000). As professionally-run institutions, SMOs have been accused of a preoccupation with maintaining income through membership marketing at the expense of fostering active participation among their members. In a nutshell, SMOs are seen to be self-serving ‘protest businesses’ which contribute little to social movement activism, and civic engagement in general. Our research into student members of a leading SMO takes issue with this assertion. Whilst organizationally SMOs can appear bureaucratic and impersonal in their marketing strategies, it cannot be assumed that this approach is only capable of attracting passive ‘chequebook activists’. Our findings suggest that younger members feel a sense of loyalty and trust towards the SMO as an effective ‘brand leader’ in its field, though this is by no means unrelenting. As reflexive consumers of activism, members have also grown more accustomed to the flexibilities of emerging post-bureaucratic ‘DIY’ activist groups. In sum, SMOs would benefit from a stronger and more consistent ‘feedback loop’ between the organization and its younger and more active members, as this will help provide scope for greater innovation whilst resisting tendencies towards self-serving ‘bureaucratized activism’