Inhomogeneous charged pion condensation phenomenon in the NJL2_2 model with quark number and isospin chemical potentials

The properties of two-flavored massive Nambu--Jona-Lasinio model in (1+1)-dimensional spacetime are investigated in the presence of isospin and quark number chemical potentials. The consideration is performed in the large-$N_c$ limit, where $N_c$ is the number of colored quarks. It is shown in the framework of this model that charged pion condensation phenomenon of dense quark/hadron isotopically asymmetric matter is rather a spatially inhomogeneous than a homogeneous one.Comment: 11 pages, 8 figures; version accepted for publication in PRD. arXiv admin note: text overlap with arXiv:1106.2928, arXiv:1102.407

New Technologies of Matrix Composite Polymer Photovoltaic and Photoresistive Materials

The goal of the paper is development of more effective technology formation photovoltaic and photoresistive elements based on the polar and nonpolar polymers dispersed by CdS, ZnS, CdSe and CdTl particles. It was established that: 1. The interphase interaction in photoelectric composites on the interphase boundary is considerably depended on particle size of inorganic phase; 2. Polymer matrix is not passive phase in photoelectric composites, but defines a value of Rdark resistance/Rlight resistance parameter and value of photo-emf; 3. 3. Plasma crystallization of photoelectric composites is accompanied by formation of local levels with high concentration and activation energy in quasi-forbidden band of polymer matrix; 4. Doping of ferroelectric component with domain structure into photoelectric composite of polymer-CdS leads to increasing concentration of centers of local electric fields promoted division of photoinduced charges

Methods for Producing High-Temperature Superconductors

This paper presents technologies for obtaining high-temperature superconducting materials

Применение вегетационных индексов для оценки состояния сельскохозяйственных культур

Monitoring of the state of agricultural crops and forecasting the crops development begin with aerial photography using a unmanned aerial vehicles and a multispectral camera. Vegetation indexes are selected empirically and calculated as a result of operations with values of diff erent spectral wavelengths. When assessing the state of crops, especially in breeding, it is necessary to determine the limiting factors for the use of vegetation indexes.(Research purpose) To analyze, evaluate and select vegetation indexes for conducting operational, high-quality and comprehensive monitoring of the state of crops and the formation of optimal management decisions.(Materials and Methods) The authors studied the results of scientifi c research in the fi eld of remote sensing technology using unmanned aerial vehicles and multispectral cameras, as well as the experience of using vegetation indexes to assess the condition of crops in the precision farming system. The limiting factors for the vegetation indexes research were determined: a limited number of monochrome cameras in popular multispectral cameras; key indicators for monitoring crops required by agronomists. After processing aerial photographs from an unmanned aerial vehicle, a high-precision orthophotomap, a digital fi eld model, and maps of vegetation indexes were created.(Results and discussion) More than 150 vegetation indexes were found. Not all of them were created through observation and experimentation. The authors considered broadband vegetation indexes to assess the status of crops in the fi elds. They analyzed the vegetation indexes of soybean and winter wheat crops in the main phases of vegetation.(Conclusions) The authors found that each vegetative index had its own specifi c scope, limiting factors and was used both separately and in combination with other indexes. When calculating the vegetation indexes for practical use, it was recommended to be guided by the technical characteristics of multispectral cameras and took into account the index use eff ectiveness at various vegetation stages.Аэрофотосъемку с помощью беспилотных летательных аппаратов и мультиспектральной камеры применяют для мониторинга состояния посевов и прогноза развития сельскохозяйственных культур. В результате операций со значениями различных спектральных длин волн эмпирически подбирают и рассчитывают вегетационные индексы, составляя карты. При оценке состояния посевов необходимо определять лимитирующие факторы применения вегетационных индексов.(Цель исследования) Проанализировать, оценить и выбрать вегетационные индексы для проведения оперативного, качественного и комплексного мониторинга состояния сельскохозяйственных культур и формирования оптимальных управленческих решений.(Материалы и методы) Изучили результаты научных исследований в области технологий дистанционного зондирования с использованием беспилотных летательных аппаратов и мультиспектральных камер, а также опыт применения вегетационных индексов для оценки состояния сельскохозяйственных культур в системе точного земледелия. Определили лимитирующие факторы для исследования вегетационных индексов: ограниченное количество монохромных камер в популярных мультиспектральных камерах; основные показатели для мониторинга сельскохозяйственных культур, необходимые агрономам. После обработки аэрофотоснимков с беспилотного летательного аппарата создали высокоточный ортофотоплан, цифровую модель поля и карты вегетационных индексов.(Результаты и обсуждение) Обнаружили более 150 вегетационных индексов. Не все их них создавались путем наблюдений и экспериментов. Рассмотрели широкополосные вегетационные индексы для оценки состояния посевов на полях. Проанализировали вегетационные индексы посевов сои и озимой пшеницы в основных фазах вегетации.(Выводы) Выявили, что каждый вегетационный индекс имеет свою специфическую сферу применения, ограничивающие факторы и используется как отдельно, так и в комплексе с другими индексами. Рекомендовали при расчете вегетационных индексов для практического применения руководствоваться техническими характеристиками мультиспектральных камер и учитывать эффективность применения индекса на различных стадиях вегетации

Pathomorphological Changes in Poultry Pasteurellios, Pullorosis and Colibacteriosis Diseases

The organism of chicken infected with individual pathogens exhibits relatively simple patho-anatomical modifications in the presence of two or three separate bacterial pathogens. Because it is highly challenging to differentiate between mixed bacterial infections based just on clinical symptoms, pathologoanatomical examination and distinction are preferred. These disorders will be accurately diagnosed promptly and without delay if the pathologo-anatomical investigations are properly examined, and preventive measures will be consistently applied

Chiral density waves in the NJL2_2 model with quark number and isospin chemical potentials

We investigate the phase portrait of the (1+1)-dimensional massless two-flavored NJL$_2$ model containing a quark number chemical potential $\mu$ and an isospin chemical potential $\mu_I$ in the limit of a large number of colors $N_c\to\infty$. Particular attention is paid to the question to what extent the inclusion of an isospin asymmetry affects chiral condensates to have a spatial inhomogeneity in the form of the so-called chiral density waves (CDW) (chiral spirals). It is shown that at zero temperature and comparatively small values of $\mu$, i.e. at $\mu<\mu_c\approx 0.68M_0$ ($M_0$ is the dynamical quark mass in the vacuum) only the homogeneous charged pion condensation phase is realized for arbitrary nonzero values of $\mu_I$. Contrary to this, for large values of $\mu>\mu_c$, two CDW phases appear in the $(\mu_I,\mu)$-phase diagram of the model. In the first phase, CDWs are clockwise twisted chiral spirals and in the second phase they are counterclockwise. The influence of nonzero temperature on the formation of the CDW phases is also investigated.Comment: 14 pages, 9 figures; typos corrected; one reference adde

RESEARCH OF THERMAL STATUS OF THREADING ZONE WITH THE HELP OF FULL FACTOR EXPERIMENT

Thermal processing zone status when threading in heatproof, high-strength and titanium alloys is a major problem in the general theory of metal cutting. Under other equal conditions temperature in the processing zone of these materials is higher than in cutting of carbon structural steels, as they have high strength and ductility, low thermal conductivity, that makes difficult the working conditions of the taps, increases the area of the tool contact with the workpiece, deteriorates lubrication and cooling of the cutting area because of the increased tendency of heatresistant materials for the curing. This causes an increase in the work and force of friction and as a consequence the rise of cutting temperature. Research of temperature state of the threaded coils formation zone with combined countersink tool-tap is one of the major challenges facing the authors of this work. When performing the work was used factorial experiment. The temperature in the cutting zone of the thread was determined by a built-in chromel-aluminum thermocouple with thermoelectrode cross-sectional area 0,23mm2 . Experiments were carried out using the apparatus of mathematical statistics. Studies have shown that the greatest impact on the temperature state of the cutting area has a tensile strength of the material. Effect of cutting speed in the studied variation range is relatively less noticeable. The explanation for this is a special scheme of cutting of combined countersink tap which allows significantly improve conditions in the cutting zone. The proposed design of the tap allows to reduce the temperature in the area of tapping for 20%

Issues of Economic Security in the Military-Industrial Complex

The development of the defense-industrial complex of Russia is one of the priorities of state domestic policy. At the same time, the defense-industrial complex is not only the main supplier of products intended for the military organization of the state, but also the driver of economic growth. Despite the significant state support of the defense industry complex, the main instrument of which is the state defense order, there are many problems in this area. We will try on the basis of analysis of the prospects and main problems of the development of the national defense industry in 2018-2025 identify the main factors that affect the level of its economic security and disclose their content

Обоснование параметров полетного задания беспилотного воздушного судна для мультиспектральной аэрофотосъемки

The paper shows the possibility of collecting multispectral and RGB data on the crop condition using an unmanned aircraft. The use of several programs for creating a flight mission is likely to lead to the inefficient use of the unmanned aircraft resources. (Research purpose) To calculate the parameters of aerial photography with multispectral and RGB cameras to enable the improved efficiency of unmanned aircraft resources. (Materials and methods) The paper studies the specifi cations of RGB and multispectral cameras installed on the drone. The research uses the results of scientifi c research on the calculation of aerial photography parameters such as longitudinal and transverse overlap, as well as the flight speed of an unmanned aircraft. (Results and discussion) It is established that the calculated values of the longitudinal and transverse overlap for the Zenmuse X4S RGB camera, as well as the unmanned aircraft fl ight speed during the joint aerial photography with a multispectral camera, make it possible to use standard mobile applications to create a flight mission. (Conclusions) It is determined that the obtained values guarantee the creation of high-quality digital maps. The parameters for the flight mission are calculated ensuring the effi cient exploitation of the unmanned aircraft resources, using simultaneously the Zenmuse X4S RGB camera and six multispectral cameras on board the unmanned aircraft.Показали возможность сбора мультиспектральных и RGB-данных о состоянии сельскохозяйственных культур с помощью беспилотного воздушного судна. Отметили, что использование нескольких программ для создания полетного задания приводит к неэффективному использованию ресурсов беспилотного воздушного судна. (Цель исследования) Рассчитать параметры аэрофотосъемки с мультиспектральной и RGB-камерами для повышения эффективности использования ресурсов беспилотного воздушного судна. (Материалы и методы) Изучили спецификации характеристик RGB и мультиспектральных камер, устанавливаемых на беспилотник. Использовали результаты научных исследований по расчету параметров аэрофотосъемки: продольное и поперечное перекрытие, а также скорость полета беспилотного воздушного судна. (Результаты и обсуждение) Установили, что рассчитанные значения продольного и поперечного перекрытия, а также скорости полета беспилотного воздушного судна для RGB-камеры Zenmuse X4S при совместной аэрофотосъемке с мультиспектральной камерой позволяют применять стандартные мобильные приложения для создания полетного задания. (Выводы) Определили, что полученные значения гарантируют создание качественных цифровых карт. Рассчитали параметры полетного задания, обеспечивающие эффективное использование ресурсов беспилотного воздушного судна, при одновременном использовании RGB-камеры Zenmuse X4S и одной из шести моделей мультиспектральных камер на борту беспилотного воздушного судна

Anthropological methods of formation of university students’ spiritual and moral culture

© 2016 Kurbanov et al.The relevance of the study is reasoned by the increasing complexity of life activity in modern society, which results in distortion of the moral and value criteria and norms. The purpose of the article is to reveal anthropological methods of formation of university students’ spiritual and moral culture. The leading approach to the study is the anthropological approach allowing us to consider the spiritual and moral culture as an evolving set of moral and valuable position and special knowledge. The study involves 300 teachers, 500 students who have identified performance criteria of methods of formation of spiritual and moral culture. The main results of the study are to identify knowledge, motivation, activity-related methods of formation of spiritual and moral culture to ensure the inclusion in the content of education of teaching material about value relations, mandatory forms of culture; conjugation of ethical and professional standards of behavior on the basis of a single criterion of “ethical - unethical” development of students’ capacity for moral target setting. The significance of these results is that the identified methods involve the willingness of teachers to dialogue, respect and understanding of students, building a living knowledge in the course of joint creative activities directed to sense and life creation; determine the development of civil harmony on the spiritual and moral values