Currents of quasi-trapped particles having discontinuities on the day and night sides of the earth

Currents of quasi-trapped particles having discontinuities on earths day and night side

Currents of quasi-trapped particles and their interaction with the geomagnetic field /symmetrical approximation/

Currents of quasitrapped particles and their interaction with geomagnetic fiel

One-loop effective potential in N=1/2{\cal N}={1/2} generic chiral superfield model

We obtain the one-loop quantum corrections to the K\"ahlerian and superpotentials in the generic chiral superfield model on the nonanticommutative superspace. Unlike all previous works, we use a method which does not require to rewrite a star-product of superfields in terms of ordinary products. In the K\"ahlerian potential sector the one-loop contributions are analogous to ones in the undeformed theory while in the chiral potential sector the quantum corrections contain a deformation parameter.Comment: LaTeX, 9 pages, Typos correcte

Generic chiral superfield model on nonanticommutative N=1/2 superspace

We consider the generic nonanticommutative model of chiral-antichiral superfields on ${\cal N}={1\over 2}$ superspace. The model is formulated in terms of an arbitrary K\"ahlerian potential, chiral and antichiral superpotentials and can include the nonanticommutative supersymmetric sigma-model as a partial case. We study a component structure of the model and derive the component Lagrangian in an explicit form with all auxiliary fields contributions. We show that the infinite series in the classical action for generic nonanticommutative model of chiral-antichiral superfields in D=4 dimensions can be resumed in a compact expression which can be written as a deformation of standard Zumino's lagrangian and chiral superpotential. Problem of eliminating the auxiliary fields in the generic model is discussed and the first perturbative correction to the effective scalar potential is obtained.Comment: 12 pages, LaTeX; text revised and extended, references adde

Application of the programmable logic controller GLOFA-GM7 in industry

The paper discusses the application of PLC in industry and also the different parts of typical scheme and methods of connection it and programming. The paper is provided with 5 figures

Chiral effective potential in N=1/2{\cal N}={1/2} non-commutative Wess-Zumino model

We study a structure of holomorphic quantum contributions to the effective action for ${\cal N}={1/2}$ noncommutative Wess-Zumino model. Using the symbol operator techniques we present the one-loop chiral effective potential in a form of integral over proper time of the appropriate heat kernel. We prove that this kernel can be exactly found. As a result we obtain the exact integral representation of the one-loop effective potential. Also we study the expansion of the effective potential in a series in powers of the chiral superfield $\Phi$ and derivative $D^2{\Phi}$ and construct a procedure for systematic calculation of the coefficients in the series. We show that all terms in the series without derivatives can be summed up in an explicit form.Comment: LaTeX, JHEP style, 32 pages, typos corrected, references adde

Effective action of three-dimensional extended supersymmetric matter on gauge superfield background

We study the low-energy effective actions for gauge superfields induced by quantum N=2 and N=4 supersymmetric matter fields in three-dimensional Minkowski space. Analyzing the superconformal invariants in the N=2 superspace we propose a general form of the N=2 gauge invariant and superconformal effective action. The leading terms in this action are fixed by the symmetry up to the coefficients while the higher order terms with respect to the Maxwell field strength are found up to one arbitrary function of quasi-primary N=2 superfields constructed from the superfield strength and its covariant spinor derivatives. Then we find this function and the coefficients by direct quantum computations in the N=2 superspace. The effective action of N=4 gauge multiplet is obtained by generalizing the N=2 effective action.Comment: 1+27 pages; v2: minor corrections, references adde

Коллоидно-химические свойства водной дисперсии прополиса, полученной методом замены растворителя

Mixing an alcoholic extract of propolis with distilled water or aqueous solution, which model seawater composition, give rise to aqueous dispersions with or without emulsifier. High dispersion stability is attained at hydrophylic-lipophylic balance equaled 13.9 using sorbitan oleate and polyoxyethylene sorbitan monooleate (Polysorbate-80) as a binary emulsifier. The initial particle size of dispersions is almost identical regardless of the presence of the emulsifier or water salinity. However, in the latter case a dispersion with essentially narrow size distribution is formed and, as a result, the dispersion is more resistant to coagulation and phase separation. Apparently, the main contribution to the stability of the aqueous propolis dispersion is made by the structural-mechanical barrier, which is formed by a thick adsorption layer of the hydrated nonionic surfactant.Смешением спиртового раствора прополиса с дистиллированной водой или водным раствором, моделирующим состав морской воды, получены его дисперсии, в том числе в присутствии эмульгатора. Наибольшая устойчивость дисперсии достигается при использовании в качестве эмульгатора смеси сорбитанолеат/полисорбат-80 со значением гидрофильно-липофильного баланса 13.9. Исходный размер частиц дисперсии практически одинаков вне зависимости от присутствия ПАВ и минерализации среды, однако в последнем случае получается более монодисперсная и потому более устойчивая к коагуляции и расслоению дисперсия. Основной вклад в устойчивость водной дисперсии прополиса, по-видимому, вносит структурно-механический барьер, который образован толстым адсорбционным слоем неионогенного ПАВ, сольватированного водой

Эмульсии пикеринга и их применение при получении полимерных наноструктурированных материалов

In this article both types of Pickering emulsions – oil/water and water/oil – and their applications in the synthesis of different polymers have been considered. Pickering emulsions are dispersions stabilized by solid particles adsorbed at oil-water interface instead of conventional emulsifier. The influence of various solid particles, their amount and interaction on emulsions formation, stability and morphology with various suspended solid particles have been considered. Phase inversion phenomena and factors (such as wettability of solid particles) affecting them have been described. The interest to Pickering emulsions for the last decade is highly fueled by eco-friendly and cost-effective manufacture of hybrid polymer particles and nanocomposites with supracolloidal structures. The Pickering emulsion polymerization or suspension polymerization allows preparing in situ reinforced nanostructural polymer composites, unusual latexes and microcapsules with unique properties.Эмульсии Пикеринга представляют собой дисперсии, стабилизированные твердыми частицами, закрепленными на границе масло–вода, вместо обычных эмульгаторов. Здесь рассматривается их образование, стабильность и морфология в присутствии твердых частиц разной природы. Большой интерес к эмульсиям Пикеринга за последние десятилетия проявляется в связи с перспективами экологически чистого и экономичного производства гибридных полимерных частиц и нанокомпозитов с супрамолекулярной коллоидной структурой. Эмульсионная или суспензионная полимеризация в эмульсиях Пикеринга позволяет получать in situ усиленные наноструктурированные полимерные композиты, необычные латексы и микрокапсулы с уникальными свойствами

Gauge invariant derivative expansion of the effective action at finite temperature and density and the scalar field in 2+1 dimensions

A method is presented for the computation of the one-loop effective action at finite temperature and density. The method is based on an expansion in the number of spatial covariant derivatives. It applies to general background field configurations with arbitrary internal symmetry group and space-time dependence. Full invariance under small and large gauge transformations is preserved without assuming stationary or Abelian fields nor fixing the gauge. The method is applied to the computation of the effective action of spin zero particles in 2+1 dimensions at finite temperature and density and in presence of background gauge fields. The calculation is carried out through second order in the number of spatial covariant derivatives. Some limiting cases are worked out.Comment: 34 pages, REVTEX, no figures. Further comments adde