Scientific Journal of KubSAU

The article considers the peculiarities of the management of monitoring visits to classes faculty by the head of the chair; we have also proposed criteria and indicators for assessing their quality

The article presents a method of assessing the quality of individual students' knowledge and the quality of the group, taking into account professional training of teachers, who taught their classes

We have revealed the main reasons for interruptions in power supply to consumers of electricity. To improve the reliability and the efficiency of power supply for responsible consumers, we have proposed to develop energy efficient combined energy-saving systems for uninterrupted power supply with use of renewable energy sources. The article lists major principles of the development of such systems; it shows the necessity of constructing a generalized schema that contains the possible types and the sources of electric power converters. It also reveals the modern requirements to systems of uninterrupted energy supply. To improve the operational and technical characteristics of the uninterruptible power supply, it has been proposed to use a new circuitry that includes a contactless power generators, the direct frequency converters used to stabilize the voltage and frequency of the current generators of wind turbines, static converters made with the use of single-phase transformers with rotating magnetic field, universal static converters that can operate in the regimes of known types of converters. The article presents features of the modular construction of systems of uninterrupted energy supply and optimization of their structural decisions on key performance criteria. It shows the algorithm of synthesis of structural designs of combined systems of uninterrupted power supply. An important step for further research with the aim of improving operational and technical characteristics of the combination of uninterrupted power supply systems is the mathematical modeling of physical processes in power circuits of the system in both normal and emergency modes of operation

One of the important issues in the design of static converters of electric power, i.e. rectifiers and inverters, is to calculate the parameters of the output and the input filters. Output filters are designed to improve the quality of output voltage of inverters, and input filters are created to reduce ripple of the input voltage of the converter that occur when commuting power semiconductor devices, and smoothing fluctuations of the current consumed from the power supply. The complexity of analytical description of the harmonic composition of the output and the input of the voltage rectifiers and inverters makes it difficult to develop some accurate methods for calculating the parameters of their filters. At the same time, considering the discreteness of the number of possible parameters of real elements of the filter, the practical value of such techniques with a high analysis accuracy of the harmonic components is negligible. In this article, we suggest the technique of the simplified calculation of output and input filters for passive LC filters rectifiers and inverters. At the same time, the practice of mathematical modeling and design of transducers has shown that the calculations of the filter parameters for rectifiers and inverters are not significantly different from each other. Therefore, the analytical expressions for calculation of the filter parameters of rectifier used ripple coefficient, and if necessary the calculation of the filters of the inverter, instead of the pulse number in the formula can be substituted with the value of the harmonic; in addition, we have also taken into account the value of the load power factor

The rapid pace of global scientific and technological progress, which is the main engine of the economy, demands for higher education, the purpose of which is to prepare highly educated specialists – the intellectual potential of Russia. It is known, that technical and technological skills play an important role in scientific and technical progress; ultimately, the economic development of the country and the welfare of the population depends on it. The selection by the criterion of professional suitability is the basis for building a decent contingent of firstyear students of technical universities. The article describes the disadvantages of the known and the new method of selection, by qualifications, based on the evaluation of the implementation of the students tests on topics studied disciplines close to engineering. The article reveals content of the main stages of pre-University training in secondary educational institutions. The proposed method of selection based on professional suitability, and the system of training of contingent in secondary schools and colleges, created on the basis of higher educational institutions, will significantly improve the quality of training of specialists of technical and technological directions for universities

Key indicators for employers are the quality of knowledge of graduates and their readiness for practice. The article suggests some methods of assessing the quality of knowledge and labor potential of graduates. Because the quality of training generally depends on the qualification of the faculty, the quality of students' knowledge is to be determined with the results of their learning and the qualification of the teachers who conducted their classes and supervised their final qualifying works. The author's analytical expressions for determining the quality of knowledge and labor potential of graduates, allow employers to choose specialists particularly required for their industry. However, for employers the rate of knowledge and labor potential of graduates of universities are indicative rates. In order to determine the choice of specific graduates, on the University's website starting from the 3rd year of a bachelor degree, we should post the information about the rating of individual students on educational and labor activity. The ratios determine the quality of knowledge of graduates and their labor potential, as well as reviews of employers should be the main indicators for the Ministry of education and science of the Russian Federation, on the basis of which we may assess the effectiveness of the universities, determine their ranking and generate a state order for training of specialists in higher education institutions

The article reveals main reasons for developing tendencies to the using of new types of energy, which are limited supply of traditional fuels and environmental problems associated with its processing. It is shown that new forms of energy plays an important role in the energy supply of many countries of the world, and in the future they can become the main sources of energy to meet the growing needs of the global economy. We reveal main reasons of the increasing interest in renewable energy, and we show the obvious prospects of their use, due to two factors. First, according to experts, the global reserves of traditional fuels are limited, and secondly, this was evidenced by the investments of leading countries in this promising industry. The article lists reasons for the need for the use of renewable energy sources in Russia. Increased consumption of natural resources has become a real threat to the security of the life of human society. The basis of solving modern social and environmental problems is a transition to a regulated process of safe use of natural energy potential to meet the vital needs of people not only in the coming decades, but in the long run. It is concluded, that the determining condition for the development of the human civilization at present and in the future would be the level of natural resources which ensures the needs of the population without making harm to the environment

The article discusses the new structural schematics DC voltage sources with improved performance, performed on transformers with a rotating magnetic field

One of the main tasks is the improvement of the education system, the quality of which depends on the level of economic development of the country. In Russia, for more than 10 years there has been a continuously reformed educational system. This is due to Russia's accession (in 2003) to the group of countries – participants of the Bologna Declaration, involving the convergence and harmonization of education systems in European countries with the aim of creating a unified educational space. The article describes the main positions that are subject to a quality assessment of education from foreign universities; we have also revealed the reasons for the low world rating of Russian universities. At present, the education system of the country should facilitate accelerated development of the economy of the state in the first place. This work reveals the shortcomings of the main reforms related to the implementation of CSE in secondary educational institutions, the bureaucratization of the higher education system that resulted in time reduction of contact of the work of students with teachers, and as a result – deterioration of quality of preparation of graduates. We have also revealed the causes of the current situation and the main directions that will contribute to the development of the education system in Russia. These areas are the development of: a strategic plan for the development of higher education; a training system worthy contingent of higher education institutions; an effective system of preparation of students and evaluation of the quality of their knowledge and labor potential; a system of training for scientificpedagogical personnel and improving their qualification; assessment criteria of effectiveness and ability of educational institutions to provide quality knowledge

An important question is increasing objectivity in evaluation of current and residual knowledge of students on the subjects. Based on these assessments, teachers will adjust the work program and calendarthematic plan on discipline, forms and methods of teaching in order to ensure a high level of knowledge, allowing making necessary competence and skills of future specialists. The article proposes the evaluation system of students ' knowledge and determines their rankings, taking into account the qualifications of the teachers who taught their classes. Knowledge assessment might be defined as just one discipline, or as all the across disciplines for a semester, academic year and study period. The knowledge of students on discipline is estimated on the results of the test tasks based on current estimates obtained in a semester, and examination grades. We have reviewed the quality assessment system of students ' knowledge and determined their rating; it will increase the credibility of the evaluation. In addition, it increases the effectiveness of the educational process, since the evaluation of students ' knowledge and skills of teachers, will help heads of departments and deans to make decisions about the professional development of teachers, showed poor results