Johnson-Matthey Diffuser Characterization Testing

Characterization of MODIS and SeaWiFS Solar Diffuser On-orbit Degradation

MODIS has 20 reflective solar bands (RSB), covering the VIS, NIR, and SWIR spectral regions. They are calibrated onorbit using a solar diffuser (SD) panel, made of space-grade Spectralon. The SD bi-directional reflectance factor (BRF) was characterized pre-launch by the instrument vendor with reference to the NIST reflectance standard. Its on-orbit degradation is tracked by an on-board solar di...

Proxy-based accelerated discovery of Fischer–Tropsch catalysts† †Electronic supplementary information (ESI) available: Details of synthesis, analysis and testing, validation experiments for high-throughput XRD and gas treatment, details of statistical analysis and calculations, tabulation of synthesis parameters and XRD results, alternatives to Fig. 3 highlighting different data points, FTS testing results displayed graphically. See DOI: 10.1039/c4sc02116a Click here for additional data file.

Department of Chemistry, University of [email protected] Johnson Matthey PLC, P. O. Box 1, Belasis A UK Johnson Matthey PLC, Blount’s Court, Sonn † Electronic supplementary information analysis and testing, validation experime treatment, details of statistical analysis an parameters and XRD results, alternative points, FTS testing results displayed grap Cite this: Chem. Sci., 2015, 6, 935

MAT 585: Johnson-Lindenstrauss, Group testing, and Compressed Sensing

Suppose one has n points, X = {x1, . . . , xn}, in Rd (with d very large). If d > n, since the points have to lie in a subspace of dimension n it is clear that one can consider the projection f : Rd → Rn of the points to that subspace without distorting the geometry of X. In particular, for every xi and xj , ‖f(xi)− f(xj)‖ = ‖xi − xj‖, meaning that f is an isometry in X. Suppose now we allow a ...

A Frontier Approach to Testing the Averch-Johnson Hypothesis

The mathematical programming technique Data Envelopment Analysis is used to test the hypothesis of Averch and Johnson that utility regulation leads to overuse of capital. The regulated firm earns a return s greater than its cost of capital r, an implicit capital subsidy resulting in allocative inefficiency. Technical and Allocative inefficiency are based on Cost and Production Frontiers from 33...

Passive Rocket Diffuser Testing: Reacting Flow Performance of Four Second-Throat Geometries