The Tools, Technology and Mathematical Model of Impactive Superficial Plastic Deformation of Metals

The paper shows scientific substantiation and practical confirmation of possibility, application expediency and efficiency of the ultrasonic superficial plastic deformation in zones of welded connections after performance of welding works. For this purpose, a mathematical model to the process of superficial plastic deformation is represented, as the hypercycle of loading consisting of elementary cycles – impacts, we described the standard measurement devices. The technology is intended to use the manufacturing and repair of any metal walls in places of dimensional and structural nonuniformity, such as mechanical defects or a local thinning of a surface owing to corrosion, and the microcracks. The microcracks is influenced by the external forces and become zones of concentration of mechanical tension. Hardening in such places of the pipes walls and tanks working under pressure is effective for pipelines of an oil and gas, water supply systems, and also for caissons and tanks of other appointment. The scopes of technology include the repair of river and sea vessels, objects of oil production. The technology can be applied to improvement of operational characteristics of mechanical engineering and transport details, objects of energetic and construction: surfaces of a rolling motion and sliding of machines and devices, wheels of a rolling stock of railway transport, a metalwork of support of power lines, platforms and bridges for increases in resistance of fatigue at cyclic loadings, wear resistance and corrosion

Simulation control facility for temperature control systems

В статье рассмотрена исполнительная часть схемы имитатора объекта контроля для автоматизированных систем контроля температуры, приведена схема исполнительной части, так же рассмотрен расчет точности схемы. Устройство позволяет проводить отладку и проверку системы в лабораторных условиях и на данный момент применяется для проверки автоматизированной системы контроля температуры на АО «НПО автоматики».The article considers the executive part of the circuit simulator object control for automated temperature control systems, a diagram of the executive, also reviewed the accuracy of the calculation scheme. The device allows you to debug and test systems in the laboratory and is currently used to test the automated system to control the temperature of JSC "NPO Automation"

Scattering of Dirac particles from non-local separable potentials: the eigenchannel approach

An application of the new formulation of the eigenchannel method [R. Szmytkowski, Ann. Phys. (N.Y.) {\bf 311}, 503 (2004)] to quantum scattering of Dirac particles from non-local separable potentials is presented. Eigenchannel vectors, related directly to eigenchannels, are defined as eigenvectors of a certain weighted eigenvalue problem. Moreover, negative cotangents of eigenphase-shifts are introduced as eigenvalues of that spectral problem. Eigenchannel spinor as well as bispinor harmonics are expressed throughout the eigenchannel vectors. Finally, the expressions for the bispinor as well as matrix scattering amplitudes and total cross section are derived in terms of eigenchannels and eigenphase-shifts. An illustrative example is also provided.Comment: Revtex, 9 pages, 4 figures, published versio

Sonochemical Reactor Treating Drinking Water for Pigs

The article deals with the use of activated water for drinking of pigs. Moreover, is described a method sonochemical activation of water. Sonochemical activated water is devoid of own supramolecular structure and has a high solvent power similar to how a boiling water, while remaining virtually the same temperature, which was prior to treatment. It is shown that the water in a thermodynamically nonequilibrium state, in which abideth some time as a result of such treatment, and has bactericidal and bacteriostatic p roperties, which it retains long time. All this suggests that the hydration of biopolymers directly into the esophagus and stomach of animals during their drinking will give tangible effect. Given the description of the mechanisms of cavitational disintegrated of water and described in comparison reactors for water treatment. Said that a regulatory authority in Russia give permission to use sonochemical technologies and devices in the food industry. Described sonochemical reactor, designed specifically for use in drinking of pigs, which have a reduced noise level and power consumption, but with better performance

Proposed Search for a00(980)−f0(980)a^0_0(980)-f_0(980) Mixing in Polarization Phenomena

The $K^+$ and $K^0$ meson mass difference induces the mixing of the $a^0_0(980)$ and $f_0(980)$ resonances, the amplitude of which, between the $K^+K^-$ and $K^0\bar K^0$ thresholds, is large in magnitude, of the order of $m_{K}\sqrt{m^2_{K^0}-m^2_{K^+}}\approx\sqrt\alpha m^2_K$, and possesses the phase sharply varying by about 90$^\circ$. We suggest performing the polarized target experiments on the reaction $\pi^-p\to\eta\pi^0n$ at high energy in which the fact of the existence of $a^0_0(980)-f_0(980)$ mixing can be unambiguously and very easily established through the presence of a strong jump in the azimuthal asymmetry of the $\eta\pi^0$ $S$ wave production cross section near the $K\bar K$ thresholds. The presented estimates of the polarization effect to be expected in experiment are to a great extent model independent.Comment: RevTeX, 9 pages, 1 figure. A number of typographical and grammatical errors correcte

Clustering of Regions Using Basic Agricultural and Economic Criteria

Разнообразие природно-климатических и экономических условий российских регионов предполагает широкий диапазон методологических подходов к их классификации. Одновременно усложняется задача абстрагирования исследования для любой отрасли народного хозяйства. Эффективная кластеризация важна также в процессе формирования и реализации аграрно-экономической политики. В работе изучены возможности базовой аграрно-экономической региональной кластеризации на основе временных рядов основных экономических показателей и показателей развития сельского хозяйства. Новизна предлагаемого подхода заключается в методике динамического сегментирования, которая позволяет наблюдать и прогнозировать направление изменений в мезоэкономических пропорциях. На основе официальных данных государственной статистики сформированы группы показателей по производственному, производственно-институциональному и производственно-структурному критериям. В качестве основного метода исследования выбран метод кластеризации «k-среднее». На основе трех смоделированных региональных сегментов рассчитаны средние значения по исходным признакам. Сегменты классифицированы с позиций полученных характеристик. Отдельно рассмотрены субъекты-выбросы, далеко отстоящие от основных массивов данных. Полученные результаты подтвердили широкое пространственное распределение регионов, входящих в определенные аграрно-экономические сегменты. Данная классификация будет полезна при обосновании направлений и выборе инструментов аграрно-экономической политики, стратегии создания производственных кластеров, а также при планировании работы регионального агробизнеса, устранении существующих диспропорций в его развитии. В качестве дальнейшего совершенствования методологии аграрно-экономической сегментации в динамике предложено расширить анализ с помощью изменения изучаемого временного интервала, роста количества включаемых в модель факторов и их взаимодействий, введения новых алгоритмов кластеризации. Данную модель можно дополнительно применять для получения прогнозов структурных изменений и динамики производства.The diversity of natural, climatic, and economic conditions of Russian regions implies a wide range of approaches to their classification. Simultaneously, the task of creating an abstract methodology for any branch of the national economy becomes more complicated. Effective clustering plays an important role in the establishment and implementation of agricultural and economic policies. The paper explores the potential of basic agricultural and economic regional clustering based on time series of main economic and agricultural development indicators. The dynamic segmentation technique was applied in order to monitor and predict the direction of meso-economic changes. Official Russian statistics were analysed to identify groups of indicators on production, production and institutional, and production and structural criteria. The к-means clustering algorithm was chosen as the key research method. Based on the three simulated regional segments, baseline average values were calculated. Then, the segments were classified according to the obtained characteristics. The outliers, significantly differing from the main data sets, were considered separately. The findings confirmed a wide spatial distribution of regions included in certain agricultural and economic segments. The presented classification can be applied to justify the directions and choice of instruments of agricultural and economic policy and a strategy for creating production clusters. Moreover, it can be used to plan the activities of regional agri-businesses and reduce their development imbalances. To improve the dynamic segmentation technique in the field of agricultural and economic development, the analysis can be expanded by changing the examined time interval, increasing the number of factors included in the model and their interactions, and introducing new clustering algorithms. Additionally, this model can be used to forecast structural changes and production dynamics