The work discussed in this presentation is motivated by the problem of decoding superposition codes when using {−1,+1}-valued dictionary elements. Under this encoding scheme, the output, Y , is a linear combination of independent Bernoulli random variables and noise. Statistical decoding then requires the study of the conditional distribution of the Bernoulli random variables given the output, ...

The product expansion of conditional prob­ abilities for belief nets is not maximum en­ tropy. This appears to deny a desirable kind of assurance for the model. However, a kind of guarantee that is almost as strong as max­ imum entropy can be derived. Surprisingly, a variant model also exhibits the guarantee, and for many cases obtains a higher perfor­ mance score than the product expansion.

Diamond coatings were successfully deposited on tool steel substrates without using any external diffusion barrier layers. The diamond film deposition was performed in a hot filament chemical vapour deposition (HFCVD) reactor. In the first step, a high substrate temperature and a high methane percentage were used to achieve a faster critical carbon concentration and hence a shorter incubation t...

Zhao, S. 2016. Theoretical Studies of Diamond for Electronic Applications. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1370. 63 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9565-7. Diamond has since many years been applied in electronic fields due to its extraordinary properties. Substitutional dopants and surface functiona...

A high-pressure silicon infiltration technique was applied to sinter diamond–SiC composites with different diamond crystal sizes. Composite samples were sintered at pressure 8 GPa and temperature 2170 K. The structure of composites was studied by evaluating x-ray diffraction peak profiles using Fourier coefficients of ab initio theoretical size and strain profiles. The composite samples have pr...

Using classical molecular dynamics with a more reliable reactive LCBOPII potential, we have performed a detailed study on the direct graphite-to-diamond phase transition. Our results reveal a new so-called "wave-like buckling and slipping" mechanism, which controls the transformation from hexagonal graphite to cubic diamond. Based on this mechanism, we have explained how polycrystalline cubic d...

We investigate the optimal R&D portfolio of a single-product monopolist investing in cost-reducing activities accompanied by efforts improving the quality of its product. There emerges that the firm’s relative incentives along the two directions are conditional upon market affluency, measured by consumers’ willingness to pay for quality, and R&D efforts are complements at equilibrium. We also p...

This paper introduces a new series of three-dimensional chaotic systems with cross-product nonlinearities. Based on some conditions, we analyze the globally exponentially or globally conditional exponentially attractive set and positive invariant set of these chaotic systems. Moreover, we give some known examples to show our results, and the exponential estimation is explicitly derived. Finally...

The notion of monotonic independence, introduced by N. Muraki, is considered in a more general frame, similar to the construction of operatorvalued free probability. The paper presents constructions for maps with similar properties to the H and K transforms from the literature, semi inner-product bimodule analogues for the monotone and weakly monotone product of Hilbert spaces, an ad-hoc versio...