Within the framework of Density Functional Theory, elastic, dielectric, and piezoelectric coefficients w-ScxAl1−xN material were investigated for scandium (Sc) concentrations x = 0 to 0.375. The electro-acoustic properties are used investigate frequency response SAW delay line, based on tilt θ° normal c-axis thin film. We found that is improved as Sc concentration increases, which consistent wi...

We prove that in Euclidean d-space every sequence of cubes with total volume 2 + 3 is able to cover on-line the unit cube. The proof is based on an on-line q-adic method of covering the unit segment by segments of lengths of the form q , where q 2 and r 1 are integers. The fact that this method is q-adic means that every segment has to be placed in such a way that both end-points are at points ...

Classical W-gravities and the corresponding quantum theories are reviewed. W-gravities are higher-spin gauge theories in two dimensions whose gauge algebras are W-algebras. The geometrical structure of classical W-gravity is investigated, leading to surprising connections with self-dual and special geometry. The anomalies that arise in quantum W-gravity are discussed, with particular attention ...

In this paper adaptive neural controllers implemented in the speed and flux control loops of the induction motor drive are presented. Feedforward networks with sigmoidal neurons in the hidden layer are applied. Parameters of the neural network structure are updated on-line according to the Backpropagation algorithm. Described adaptive controllers provide the accurate control with fast response ...

For prawn trawling systems, drag reduction is a high priority as the trawling process is energy intensive. Large benefits have occurred through the use of multiple-net rigs and thin twine in the netting. An additional positive effect of these successful twine-area reduction strategies is the reduced amount of otter board area required to spread the trawl systems, which leads to further drag red...

Sorghum vegetative tissues are becoming increasingly important for biofuel production. The composition of sorghum stem tissues is influenced by genotype, environment and photoperiod sensitivity, and varies widely between varieties and also between different stem tissues (outer rind vs inner pith). Here, the amount of cellulose, (1,3;1,4)-β-glucan, arabinose and xylose in the stems of twelve div...

Hugo: ERVWE1 Other names: env; enverin; Env-W; HERV-W; HERV-W-ENV; HERV-W_7q21.2 provirus ancestral Env polyprotein precursor; HERV-7q; HERVW; Syncytin; Syncytin-1 Location: 7q21.2 Note: Sequences of retroviral origin represent about 8% of the human genome. There are at least 31 families of human endogenous retroviruses (HERVs). Each family derived from an independent infection of the germ line...

It is clear that if A7 possesses the spectral resolution N = jzdK(z), then any operator of the form A =Jzll2dK(z), where, for the value of z1'2, the choice of the branch of the function may depend on z, is a solution of (1). Moreover, all such operators are even normal. Of course, equation (1) may have other, nonnormal, solutions A. The object of this note is to point out a simple condition to ...