Case for the structured audit

https://egrove.olemiss.edu/dl_proceedings/1159/thumbnail.jp

Ultrasensitive Inverse Weak-Value Tilt Meter

We present an interferometric technique for measuring ultrasmall tilts. The information of a tilt in one of the mirrors of a modified Sagnac interferometer is carried by the phase difference between the counter-propagating laser beams. Using a small misalignment of the interferometer, orthogonal to the plane of the tilt, a bimodal (or two-fringe) pattern is induced in the beam’s transverse power distribution. By tracking the mean of such a distribution, using a split detector, a sensitive measurement of the phase is performed. With 1.2 mW of continuous-wave laser power, the technique has a shot noise limited sensitivity of 56 frad/Hz−−−√ and a measured noise floor of 200 frad/Hz−−−√ for tilt frequencies above 2 Hz. A tilt of 200 frad corresponds to a differential displacement of 4.0 fm in our setup. The novelty of the protocol relies on signal amplification due to the misalignment and on good performance at low frequencies. A noise floor of about 70 prad/Hz−−−√ is observed between 2 and 100 mHz

Ultrasensitive Inverse Weak-Value Tilt Meter

We present an interferometric technique for measuring ultrasmall tilts. The information of a tilt in one of the mirrors of a modified Sagnac interferometer is carried by the phase difference between the counter-propagating laser beams. Using a small misalignment of the interferometer, orthogonal to the plane of the tilt, a bimodal (or two-fringe) pattern is induced in the beam’s transverse power distribution. By tracking the mean of such a distribution, using a split detector, a sensitive measurement of the phase is performed. With 1.2 mW of continuous-wave laser power, the technique has a shot noise limited sensitivity of 56 frad/Hz−−−√ and a measured noise floor of 200 frad/Hz−−−√ for tilt frequencies above 2 Hz. A tilt of 200 frad corresponds to a differential displacement of 4.0 fm in our setup. The novelty of the protocol relies on signal amplification due to the misalignment and on good performance at low frequencies. A noise floor of about 70 prad/Hz−−−√ is observed between 2 and 100 mHz

2015 Progress Report: Design And Health Research Consortium

The Architects Foundation, along with the American Institute of Architects (AIA) and the Association of Collegiate Schools of Architecture (ACSA), issued this first progress report of the AIA's Design and Health Research Consortium. The consortium helps translate research on design's influence on public health into architectural practice for policymakers, design and public health professionals and the general public.The 2015 report covers consortium activities across a spectrum of research issues where design contributes to public health, from the effects of indoor temperatures on sleep deprivation and depression to a "best design" competition for a mobile isolation treatment unit to combat the Ebola epidemic

Digital Fabrication and Its Meanings for Photography and Film

Bazin, Cavell and other prominent theorists have asserted that movies are essentially photographic, with more recent scholars such as Carroll and Gaut protesting. Today CGI stands as a further counter, in addition to past objections such as editing, animation and blue screen. Also central in debates is whether photography is transparent, that is, whether it allows us to see things in other times and places. I maintain photography is transparent, notwithstanding objections citing digital manipulation. However, taking a cue from Cavell—albeit one poorly outlined in his work—I argue this is not so much because of what photography physically is, but because of what “photography” has come to mean. I similarly argue digital technologies have not significantly altered what cinematic media “are” because they have not fundamentally modified what they mean; and that cinema retains a photographic legacy, even when it abandons photographic technologies to digitally manufacture virtual worlds

Growth of 1T ' MoTe2 by thermally assisted conversion of electrodeposited tellurium films

Molybdenum ditelluride (MoTe2) is a transition metal dichalcogenide (TMD) which has two phases stable under ambient conditions, a semiconducting (2H) and semimetallic (1T') phase. Despite a host of interesting properties and potential applications, MoTe2 is one of the less-studied TMDs, perhaps due its relatively low abundance in nature or challenges associated with its synthesis, such as the toxicity of most precursors. In this report, we describe the fabrication of thin films of phase-pure IT' MoTe2 using predeposited molybdenum and electrodeposited tellurium layers, at the relatively low temperature of 450 C. This method allows control over film geometry and over the tellurium concentration during the conversion. The MoTe2 films are characterized by Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, atomic force microscopy, and electron microscopies. When applied as a catalyst for the hydrogen evolution reaction, the films display promising initial results. The MoTe2 films have a Tafel slope of below 70 mV dec(-1) and compare favorably with other MoTe2 catalysts reported in the literature, especially considering the inherently scalable fabrication method. The variation in electrocatalytic behavior with thickness and morphology of the films is also investigated