Symplectic geometries on supermanifolds

Extension of symplectic geometry on manifolds to the supersymmetric case is considered. In the even case it leads to the even symplectic geometry (or, equivalently, to the geometry on supermanifolds endowed with a non-degenerate Poisson bracket) or to the geometry on an even Fedosov supermanifolds. It is proven that in the odd case there are two different scalar symplectic structures (namely, an odd closed differential 2-form and the antibracket) which can be used for construction of symplectic geometries on supermanifolds.Comment: LaTex, 1o pages, LaTex, changed conten

Higher order relations in Fedosov supermanifolds

Higher order relations existing in normal coordinates between affine extensions of the curvature tensor and basic objects for any Fedosov supermanifolds are derived. Representation of these relations in general coordinates is discussed.Comment: 11 LaTex pages, no figure

Design and making of physical prototype of Tesla turbine

Bladeless Tesla turbine has a number of advantages and features in comparison with conventional blade turbines. Its operating based on principle of natural flow of working medium with a minimal resistance and absence of perturbations. Bladeless Tesla turbine in contrast to a blade turbine may be produced in simple workshop with the help of standard materials and finished articles. The turbine has no blades, rotor has no projections and therefore it is more solid in comparison with traditional rotors and blades. In article bladeless turbine operation features are described, advantages and disadvantages are emphasized, requirements to designing are presented, and construction features are marked out.Безлопастная турбина Теслы имеет ряд особенностей преимуществ, по сравнению с традиционными лопастными турбинами. В принципе её работы лежит способ движения рабочего тела натуральным путём с минимальным сопротивлением, свободным от возмущений. Безлопастная турбина Теслы, в отличие от лопастных турбин, может быть изготовлена в условиях мастерской с применением стандартных материалов и готовых изделий. Она не имеет лопаток, ротор не имеет выступов и потому более прочен в сравнении с традиционными роторами с лопатками. В статье приведены особенности работы безлопастной турбины, выделяются преимущества и недостатки, предъявляются требования к проектированию, подчеркиваются особенности конструирования

РЕЗУЛЬТАТЫ ИССЛЕДОВАНИЙ ПАМЯТНИКА ЯМНОЙ КУЛЬТУРЫ ГЕНЕРАЛКА 2 НА ОСТРОВЕ ХОРТИЦА НА ДНЕПРЕ

n/

Extrapolation of Multiplicity distribution in p+p(\bar(p)) collisions to LHC energies

The multiplicity (N_ch) and pseudorapidity distribution (dN_ch/d\eta) of primary charged particles in p+p collisions at Large Hadron Collider (LHC) energies of \sqrt(s) = 10 and 14 TeV are obtained from extrapolation of existing measurements at lower \sqrt(s). These distributions are then compared to calculations from PYTHIA and PHOJET models. The existing \sqrt(s) measurements are unable to distinguish between a logarithmic and power law dependence of the average charged particle multiplicity () on \sqrt(s), and their extrapolation to energies accessible at LHC give very different values. Assuming a reasonably good description of inclusive charged particle multiplicity distributions by Negative Binomial Distributions (NBD) at lower \sqrt(s) to hold for LHC energies, we observe that the logarithmic \sqrt(s) dependence of are favored by the models at midrapidity. The dN_ch/d\eta versus \eta for the existing measurements are found to be reasonably well described by a function with three parameters which accounts for the basic features of the distribution, height at midrapidity, central rapidity plateau and the higher rapidity fall-off. Extrapolation of these parameters as a function of \sqrt(s) is used to predict the pseudorapidity distributions of charged particles at LHC energies. dN_ch/d\eta calculations from PYTHIA and PHOJET models are found to be lower compared to those obtained from the extrapolated dN_ch/d\eta versus \eta distributions for a broad \eta range.Comment: 11 pages and 13 figures. Substantially revised and accepted for publication in Journal of Physics

Liquid air energy storage

The article mentions energy storage systems, liquid air energy systems in particular. The article singles out the principles of the method, main stages of its work and advantages.В работе рассмотрены системы аккумулирования электроэнергии, в частности на основе жидкого воздуха. Обозначены принципы, лежащие в основе метода, основные части системы, её достоинства

POLYMORPHIC VARIANTS OF SUNFLOWER <i> RFL-PPR </i> GENES AS MOLECULAR GENETIC MARKERS

A sample of 131 sunflower lines from VIR genetic collection which differed for the ability to suppression of the CMS phenotype was studied using molecular markers specific for the CMS PET1 associated mitochondrial locus orfH522 and Rf1 nuclear gene, and also for CAPS-markers developed on the bases of single nucleotide polymorphism of RFL-PPR genes homologs. With the use of hybridological analysis a tight linkage of HRG01 and HRG02 marker fragments with the Rf1 gene controlling pollen fertility restoration trait was confirmed. The allelic variants of the RFL-PPR genes sequences were associated with the allelic state of the Rf1 locus. However, the CAPS marker elaborated for the QHL12D20 fragment showed independent inheritance from pollen fertility restoration trait in the F2 of the hybrid VIR116xVIR740