14,522 research outputs found
A tool for cutting ultra thin slits in metals
Tool produces slits of 0.0305 mm widths in materials up to RC 50 hardness, minimizes material waste and improves precision. Device may be used for general metal cutting and for producing simulated cracks in metal samples used in fatigue tests
Universal basic education : an overall strategy of investment priorities for economic growth
Includes bibliographical references (p. 27-28)
Apollo experience report: Guidance and control systems: CSM service propulsion system gimbal actuators
The service propulsion system gimbal actuators of the Apollo command and service module were developed, modified, and qualified between February 1962 and April 1968. The development of these actuators is described as the result of extensive testing, retesting, and modification of the initial design. Successful completion of each mission without anomalies attributable to the actuators indicated that the particular configuration (modification) in use was adequate for the flight profile imposed
Scale factor gage for fiber optics inspection device
Flexible wire device, fastened along outside of fiber bundle from viewing portion to tip, positions calibrated adjustable gage in field of view. Scale factor is determined from known magnification characteristics of fiber optics system or from graduations on gage tip
Quick release acoustic sensor holding fixture
Quick-release spring holder secures acoustic sensor to test material surface eliminating adhesive bonding to test material and achieving acoustic emission evaluation from tensile tests. Reusability of sensors reduces test cost
Measured electron contribution to Shuttle plasma environment: Abbreviated update
The differential energy spectra of electrons between 1 and 100 eV were measured by an electron spectrometer flown on an early shuttle. This energy range was scanned in 64 incremental steps with a resolution of 7%. The most striking feature that was observed throughout these spectra was a relatively flat distribution of the higher energy electrons out to 100 eV. This is in contrast to normal ambient spectra which consistently show a rapid decline in quantitative flux beyond 50 to 55 eV. The lower energy (1 to 2 eV) end of these spectra showed steep thermal trails comparable to normal ambient spectral structure. In general, daytime fluxes were significantly higher than those obtained during nighttime measurements. Quantitative flux excursions which may possibly be associated with thruster firing were frequently observed. Spectral structure suggestive of the N2 vibrational excitation energy loss mechanism was also seen in the data from some measurement periods. Examples of these spectra are shown and possible correlations are discussed
Time for "justice" : Research to inform the development of a human rights framework for the design and implementation of an "acknowledgement and accountability forum" on historic abuse of children in Scotland
In 2002, Chris Daly raised a petition to the Scottish Executive (PE535) calling for an independent inquiry into the historic abuse of children in Scotland. This led to the setting up of a reference group in 2003, in order to explore the role of a truth and reconciliation process that was identified as an important step in dealing with historic abuse. In 2004, there was an apology for such abuse by the then First Minister, Jack McConnell. In 2005, Tom Shaw led the Historic Abuse Systemic Review. This covered the period 1950 – 1995 and was completed in 2007. In 2006, a sub-group of the reference group that was set up in 2003 identified the need for a service for survivors. This led to the funding of ‘In Care Survivor Scotland’ in 2008, under the umbrella of ‘Open Secret’. It is important to see this current report in this context. Eight years on from the initial petition, it is clear that this process has been seen by many as a long road to acknowledging the need to address outstanding human rights issues in relation to the historic abuse of children in care in Scotland
The external benefits of higher education
The private market benefits of education are widely studied at the micro level, although the magnitude of their macroeconomic impact is disputed. However, there are additional benefits of education, which are less well understood. In this paper the macroeconomic effects of external benefits of higher education are estimated using the “micro-to-macro” simulation approach. Two types of externalities are explored: technology spillovers and productivity spillovers in the labour market. These links are illustrated and the results suggest they could be very large. However, this is qualified by the dearth of microeconomic evidence, for which we hope to encourage further work
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