The structure of margarosanite is probably very similar to that of synthetic CazBaSisOg. This in turn is closely related to other substances containing X3Oe rings: compare the cell dimensions given. These data show the existence of a series of metasilicates of large divalent cations containing X3Oe rings. These structures can also exhibit cation ordering; thus the Ca/Ba ratio is known to be fix...

We present the development of three local oscillator chains to be used on the CASIMIR (Caltech Airborne Submillimeter Interstellar Medium Investigations Receiver) instrument onboard the SOFIA (Stratospheric Observatory for Infrared Astronomy) aircraft. All three chains use all solidstate GaAs-based components to amplify and multiply a ~1-3 mW input signal at W band. At room temperature, the 900...

Vanadium-doped magnesium nanostructures are fabricated by an oblique angle co-deposition method and hydrogenated/dehydrogenated for 21 cycles. The effective thermal conductivity and density of the MgH2 nanostructures is measured by using a photothermal system. A multilayer physical model is used to fit the experimental data. Our results show that the effective thermal conductivity of the hydrog...

2014 A critical assessment is given on the now emerging technologies for the spatial modulation of light. The many types of actually developed light valves are reviewed, using a classification based on their utilization in optical architectures and systems : one-dimensional bulk or integrated devices ; two-dimensional modulators with electronical or optical addressing ; analog, binary or non-li...

In this paper, we propose a new lightweight block cipher called LBlock. Similar to many other lightweight block ciphers, the block size of LBlock is 64-bit and the key size is 80-bit. Our security evaluation shows that LBlock can achieve enough security margin against known attacks, such as differential cryptanalysis, linear cryptanalysis, impossible differential cryptanalysis and related-key a...