The 100 most-cited articles in The Scientific Issues of Ternopil Volodymyr Hnatiuk National Pedagogical University Series pedagogy, 2016

The modern approach of evaluation of errors of surface digital photogrammetric survey is considered. The possibilities of taking into account the impact of error of the system of treatment of digital representation and parameters of digital matrix on exactness of determination of actual coordinates of points are considered. The methods of quality assessment identifying cracks on the results of photogrammetric surveys and the estimation accuracy of the length and area of cracks are offered. The calculations of theoretical step of scanning for different categories of cracks using laser scanners VZ-400, VZ-1000, VZ-4000 of the RIEGL Company are executed. The order of determination of limits of area of laser scanning is reasonably depending on the parameters of cracks and technical descriptions of the laser scanner. According to the results of the calculations the method of determining the optimal parameters of laser scanning for different types of cracks is proved. Reasonable rational directions of the use of digital surface photogrammetric surveys and laser scanning in the study of…

Sumartono, W., Thabrany, H., & Meidyawati, R. (2016). Heavy smoking and severe dental caries in Indonesian men. Tobacco Control and Public Health in Eastern Europe, 6(1), 21-29.

In paper was viewed the problem of non-material assets estimate for the modern innovation enterprises. It noted that the complexity of its’ accounting due the high rate of obsolescence knowledge, accumulated in such assets. Also it was noted that the English language the term has a broader interpretation. In order to add to this term a broad understanding, the division of non-material assets into 2 groups is proposed. The first group, which is proposed to name «palpable assets», will consist of non-material assets that are already listed in companies’ balance sheets. The second group («invisible assets») will contain assets that still can’t be listed in companies’ balance sheets due to impossibility of their evaluation and operations with them in terms of traditional algebra. The analysis shows that there are lot methods of non-monetary evaluation of invisible assets, such as assessment in points, which allow using their in organizing internal management. Although it was noticed that current methods of monetary evaluation of intangible assets are not able to fully show the company’s…

There is an indicator for the interaction of track and rolling stock as the stability to mounting of a wheel flange on a rail, failure to do so leads to violation of road safety, namely the rolling stock immediately. The main causes of retirements, as a rule, is considered a violation of the norms of the steepness of the curve elevation, a great difference in bending arrows adjacent points, wrong device of the curve elevation. In many cases, the deviations recorded simultaneously on several parameters in position coming-off. The mounting of a wheel flange on a rail has often been the cause of coming-off. Conditions stability for the mounting of a wheel flange on a rail is defined as the ratio of forces that prevent the rise of the wheel to the forces that seek to raise it. To calculate the coefficient of stability for the mounting of a wheel flange on a rail, there are two identical methodologies. It is recommended to use the ratio of vertical to horizontal forces based on the coefficient of friction and tilt wheel comb, which should not be less than the set value. The lowest values…

The purpose of the study was to determine differences in the fast kinetics of O 2 consumption, CO 2 release, pulmonary ventilation and heart rate, as well as differences in sensitivity of the cardiorespiratory system (CVS) to hypercapnia in athletes of various sports specializations. Methods. In three groups of elite runners (19–24 years old) at a distance of 100, 800 and 5000 m peak responses and their fast kinetics were studied (half cycle T 50 , «breath-by-breath» method). Sensitivity to CVS hypercapnia was determined by the «return» breathing method. Results. It was revealed • • • that the fast kinetics of VO 2 and V E , when performing work of average aerobic power at VO 2 53.5 % • • of VO 2 max was higher in sprinters as compared to long-distance runners. For «critical» power at VO 2 • 93,4 % of VO 2 max the characteristics of reaction kinetics were higher in long-distance runners. The findings suggest an association between differences in CVS sensitivity to CO 2 in sprinters, middle and long distance runners, and differences in the kinetics of fast reactions of CVS in…

In this paper the authors calculate the losses in insulation system cable with XLPE-polyethylene as a solid dielectric insulation and with semiconductor polyethylene used as a conductor screen and an insulation screen. The paper is devoted to the investigation of losses in the insulation system of high-voltage XLPE-cables. The line of XLPE-cables in group running horizontally, provided that the cables are of equal diameter and emit equal losses. It is limited to the following: the air flow around the cables may be necessary restricted by proximity to next cables. The dielectric losses are voltage depended and related to the insulation system materials being used. All current in this insulation system are complex quantities containing both real (Re(I)) and imaginary (Im(I)) parts. Values of the loss factor of the insulation system at power frequency tgd are given astgd = Re(I)/Im(I). It was proposed the quantities criterion of the loss factor of the insulation system to high voltage XLPE-cables. The work is devoted to creation of a method for calculation of the current rating of…

The using of industrial robots (IR), which has larger positioning error is more perspective in the condition of the demand increase was showed. The classification of IR adoptive grippers (Ag) which was reduced, helped to define the ways of overcoming the aftereffect of force conflict at the technological service working position of mechanical assembling flexible industrial cells by IR and offer settlement scheme for Ag of the IR design.

Principal causes of the deterioration of protector of motor-car tires are considered. The distribution laws of observed life of motor-car tires are analysed in the conditions of the operation of Donets region. The device for the control of protector pattern remaining height is offered.

The aim of the study was an analytical backgrounding of parameters of conveyor rollers design elements by durability criteria and the establishment of the recommendations for the conveyor rollers manufactures regarding the weight and size parameters of the roller carriage components that will not only increase their resource but the resource of the conveyor as a whole by reducing the dynamic loads in the mode of start

The main goal of the paper is to study technology of coal extraction in western Donbass The present paper proposes a new approach to solve a problem of mining equipment selection for longwall faces western Donbass.. The present paper describes new method for selection of mining equipment based on theory graph. The authors described methods for selecting mining equipment and experiences of mining thin and very thin coal seams in Ukraine. A study of equipment range of coal is essential for coal mines.

There were considered features of development and functioning of the German model of training of the teaching staff and reasonable uses of its elements within the system of labor potential of local universities. The analysis of the content of standards and rules for submission and consideration of the thesis that operate at the German University of Administrative Sciences, there was observed a general algorithm for training of the teaching staff within the German model. As a result of comparing the content of domestic and German models of scientific-pedagogical and scientific personnel of higher qualification, there were separated benefits of the last and processed proposals to improve the content of the mechanisms of domestic models.

The scheme of a spherical solar collector is presented. Its principle of operation is described. The analytical forms for the helical curve and its length are found. They will be used for design and making of spherical solar collectors and for calculation of solar energy flow which is received by them against the space coordinates and time

The paper deals with an optimization problem of packing identical circles into a multiply connected region whose frontier consists of arcs of circles and line segments. On the ground of the characteristics of a mathematical model a solution method is offered. The method consists of a combination of a method of generating starting points, a modification of the feasible directions method to search for local maxima and a modification of the decremental neighbourhood search method to find an approximation to a global maximum. Numerical examples are given

In the article the analysis of formation of the concept of sports management as a new scientific direction and discipline that includes all the achievements management, the accumulated classics of management, and implemented in the field of sports. The basic principles of classical (scientific) management and transformed in sports management; sports management studied in the context of socio-cultural and historical evolution of mankind in a globalized world; revealed sports management as a set of social issues, personality, sports, represent a system of sports institutions, ideas, personalities; it is proved that sports management is a socio-cultural and socotora system that can be described as a holistic socio-cultural system. As a result of the study - the essence of sports organizations like the integrity that affects the development and self-development-athlete diagnosed with sport organizations problems and directions of increase of efficiency of sports management as a new scientific field and discipline

The article examines the strategic management of credit operations as the activities on credit strategies of banking institutions, the formation of goals, objectives, and the choice of methods to achieve them. The basis of this is the strategic management analysis of the factors affecting the lending operations, strategic planning, communication mechanisms of strategic and tactical decisions, monitoring the implementation of the strategy and timely adjustments. For the purpose of effective implementation of the developed strategy, the article argues that banks in modern conditions should develop their own internal credit policy which should cover the essential elements and principles of credit at these banks. The study determines that the credit policy is based on the factors determined by the amount of capital assets and loan portfolio, the structure of its clientele, specialization, location, presence of branch network, the situation in the money market.

The scheduling problem for the synchronous dataflow graph (SDF) is considered. A method of the SDF scheduling is proposed which is based on transforming SDF into spatial SDF. The circular schedule has the period of L cycles. Each spatial SDF node has the coordinates of space and time of an event, where and when the respective algorithm steps were performed. A set of restrictions, which the SDF nodes have, helps to derive the circular schedule with the optimum load balancing. So, the nodes, which are mapped into a single resource, must not have the same clock cycles modulo L, and the number of such nodes has to approach L. The resulting schedule is implemented in the pipelined datapath. The algorithm for computing the suboptimal schedule is proposed based on the spatial SDF.

Problems. Nowadays, widely used ultrasound therapy devices in this field of medicine, like physiotherapy. The degree of influence of ultrasound on biological tissue can be estimated with some approximation, defining the extent of this impact on the water - as the main component of the cell environment, namely the cluster structure of water. Effect of Ultrasound on cluster structure of water depending on the parameters studied by ultrasound constant time intervals. This article examines the influence of ultrasound on the cluster structure of water depending on the duration of exposure.The aim of the study. Research degree of influence of therapeutic ultrasound intensities to cluster structure of distilled water, depending on the duration of exposure.Methods of implementation. Comparison display cluster structure of distilled water to the effects and after effects of ultrasound specified time intervals and assessment of the impact for each time interval the structure of water, helping to fulfill the purpose of the study.Research results. Obtain the relative volume clusters within the…

The transmission of information via the radio channel always involves the selection of radio waves modulation and the frequency band occupied by the radio signal. For the narrowband analog signals, the transmission via the radio channels in areas with difficult terrain the short-wave range is widely used. The majority of radio stations use frequency modulation of the transmitter without any message encryption. This gives the opportunity to detect and intercept messages that are transmitted. The use of the voice scramblers allows to hide information that is transmitted via the communication channel, but it is impossible to hide the radiation of the transmitter. The article suggests the use of a broadband signal with a modulation which is not associated with the change of the frequency of the transmitter in accordance with information, which is transmitted. The calculations showed that the proposed communication system can operate in a common frequency band with existing narrowband means of the short-wave range not creating them the substantial interference. The calculated…

Purpose. The environmental state and recreational suitability lakes waters of Velymche and Somyne Turiysk district, Volyn region. Methods. Field, analytical. Results. The modern aspects of the assessment of recreational potential of reservoirs. Analyzed the factors that define the conditions of recreational use of lakes. Environmental assessment of surface water quality conducted as generalized quality assessment on two blocks of indicators: salt content block and block Trophy saprobiolohichnyh (environmental and health) indicators.According to the quality standards of surface waters studied, the ecological condition and water quality of lakes Velymche and Somyne Volyn region. Based on the system of target criteria and indicators for the complex assessment of recreational suitability of the waters of the lakes. Conclusions. On set targets and criteria Velymche water lakes and Somyne has favorable conditions for the majority of contact and contactless types of recreational activity that promotes a safe vacation in these waters. In terms of recreational use, characterized by aesthetic…

Natural resources are an important subject of accounting and reliable information about the presence of natural resources largely determines their competitiveness. But, unlike companies in developed countries, the Ukrainian practice faces significant problems connected with recording of data and results of their use. Having examined the standards of domestic and foreign regulatory accounting of individual objects of nature, we can state that natural resources have the characteristics of property, but at the same time, there are significant differences. The author suggests three options for managing accounting of natural resources and appropriate rent from them, to create a special standard; improve existing standards of accounting for fixed assets, costs and revenues; make a link to a special standard, which reveals the methodology of natural resources accounting. Natural rent is the income derived from ownership or use of certain natural resources (land, water, forests, minerals and mining area). The study shows that the natural rent includes land, mining, water and forest rents,…

The structural-functional approach to the study of terrorist organizations is proposed in the article. It means their consideration as social groups consisting of the following components: political, financial-eco- nomic, integrative (disciplinary), ideological. It is shown that in most definitions of terrorism the key concept is «violence». At the same time, the blurring of the boundaries of political and scientific discourse is one of the main obstacles in ensuring the clarity of the notion of «terrorism». A trend of modern terrorism is to use the concepts «republic» and «state», which serve as an ideological justification to seizure new territories. According to the author, the formation and support of modern terrorist organizations is one of the effective technologies of the hybrid wars in the modern world.

У статті розкривається питання першопричин агресивної інформаційної політики Російської Федерації проти України. Звертається увага на деякі історичні передумови інформаційного протистояння Росії та України. Описано основні інструменти і методи ведення інформаційної боротьби з боку Російської Федерації, визначені основні психоінформаційні маніпулятивні технології, які використовуються з метою формування тих чи інших ментальних установок, серед як серед власного населення так і українського. Звертається увага до питання діяльності російських каналів супутникового мовлення, радіомовлення, трансляції російської кінопродукції, передач зі своєю викривленою ідеологією, спрямованої на підрив європейських цінностей і нагнітання міжетнічної ворожості, у тому числі маніпулювання мовними, релігійними, економічними питаннями. Стаття також актуалізує питання використання Кремлем «м’якої сили», для досягнення своїх зовнішньополітичних цілей. Вказано на основні слабкі сторони України в контексті російських інформаційних впливів, а також окреслено шляхи їх подолання.

The article title is ‘Cybersecurity of Ukraine: scientific and practical dimensions of modernity’. The article discusses the problems of cybersecurity in Ukraine. Attention is drawn to the scientific understanding of the terms ‘cyberspace’ and ‘cybersecurity’ by domestic and foreign researchers of this subject. It is noted that there is still no clear definition of these terms and this complicates the scientific comprehension as well as further practical overcoming of the problems and challenges that arise in cyberspace.Nowadays cyberspace is seen as an important security imperative, since on its implementation depend economic, military, social and other spheres of state activity. The article discusses the issue of cyber-power of the state. It is noted that essentially the same, yet modernized, approaches that were for- mulated by the classics of geopolitics can be applied for cyberspace.The article also describes the main threats to the cyber security of Ukraine in the context of Rus- sian aggression in cyberspace. With the beginning Russian hybrid war, where cyber warfare is one…

The article addresses the data concerning the influence of excessive weight on the human state of health, which declines every year due to lack of physical activity, lack of sleep, ill-timed and unhealthy nutrition, excessive mental workloads, stress and harmful habits. It is stated, that excessive body weight and obesity are caused by the violation of healthy lifestyle requirements. It is recommended to get rid of stimulants, permanent stress and sleep deprivation, adhere balanced nutrition, optimal physical activity and healthy lifestyle.

In article the concept essence professional competence of the teacher of the highest military educational institution, and also the maintenance of the main structural components of this pedagogical category reveals. Problems of improvement of professional competence of the teacher of the modern realities caused by calls which appeared in front of Ukraine and its Armed Forces in connection with the armed aggression of the Russian Federation against Ukraine are considered. The directions which are put into operation by the relevant normative legal acts and ways of reforming and further development of system of military education and efficiency of professional activity of teachers are analyzed. The main attention is paid to the analysis of psychology and pedagogical competence of the teacher of the highest military educational institution and the main approaches to estimation of results of its pedagogical activity. Thus the emphasis is placed on application in educational process of innovative pedagogical technologies, reduction of the content of education and quality of training of…

Розглядаються особливості професійної підготовки менеджерів у технічному виші, у якому задіяні викладачі з технічною або ж з економічною освітою, у яких відсутні психолого-педагогічні знання, що виступають запорукою розвитку соціально-психологічної та управлінської компетентності, тому виникає потреба у оновленні змісту професійної підготовки менеджерів із використанням інноваційних підходів. У статті проаналізовано процес формування готовності до адаптивного управління у майбутніх менеджерів в процесі професійної підготовки у технічному виші та запропонована така організація навчально-виховного процесу, що передбачає корегування його компонентів й системи взаємодії суб’єктів з метою активізації самостійної пізнавальної діяльності тих, хто навчається на кожному етапі. Також визначено основні компоненти готовності до адаптивного управління в процесі професійної підготовки менеджерів у технічному виші та методи навчання, за допомогою яких можна їх сформувати. Стаття містить пропозиції щодо використання майстер-класів, зокрема авторського “Від адаптивності керівника-лідера до…

To date, about 10–15% of couples are infertile. According to the WHO critical level is 15%, therefore the obvious importance of correcting this situation. The subject of our study was excretory-toxic infertility (ETI) is most common among the population. The reason for this is high prevalence of diseases caused by urogenital infection. ETI is often one of the consequences of the inflammatory process in the organs of the male reproductive system. Common cause leading to the ETI is the chronic prostatitis (CP) and its complications. ETI is a complication of 40-60% of inflammatory diseases of the genital organs in men. In the treatment of CP is complicated by ETI, deliver the full range of individually selected therapeutic actions: antibacterial, anti-inflammatory therapy, physiotherapy. Further, in the case of a positive result, follow-up tests for cure of sexually transmitted infections (STIs) conducted spermatogenesis therapy for 2 months. As a preparation for the stimulation of spermatogenesis were used rectal suppositories with prostatilen. After treatment significant improvement…

The technique, which allows you to create models required to identify the dependence of the loss of the effectiveness of implementation of service and combat missions from the current level of limited funding (for directions) of the National Guard of Ukraine joints in time of peace, in order to maximize the preservation of their service and combat capabilities.

The technique, which allows you to perform taxonomic assessment of the impact of the financial elements of the software on the possibility of the service and combat missions formations, military units of the National Guard of Ukraine.

The purpose of research was the development of new and effective technique of electroplatings phase composition analysis by inversion voltammetric methods. As a result the possibility of the phase composition of the plated zinc-based alloys identification using anodic linear voltammetry in alkaline solutions was shown. The phase composition Zn–(0.27–9.4)% Fe alloy electroplated from alkaline zincate solutions was defined based on voltammetry data. As part of the Zn–Fe alloys the phase of hexagonal structure was found which is absent in the equilibrium phase diagram. The ratio of hexagonal crystal lattice axes (c/a) and the electron concentration (e/a) for this phase are significantly different from the corresponding values for the primary solid solution η. From the analysis of c/a and e/a values of investigated Zn–Fe alloy the defined phase was identified as a solid solution phase type ε. It also was shown that anodic linear voltammetry accomplished in alkaline solutions is more sensitive to the identification of the phase composition of zinc alloys than the traditional X-ray method…

Vicinal halo amines constitute an important class of compounds due to their diverse biological activity and a broad application as synthones in the production of pharmaceutical agents. The reaction of aryl- and alkylsulfonamides with 1,2-dibromo-2-phenylethane in the presence of Lewis acids (such as FeCl3 and ZnCl2) in 1,2-dichloroethane can represent one of the most efficient ways of halo amine synthesis. It has been shown that methanesulfonamides and benzylsulfonamides starting materials produced the alkylation products with good yields while p-toluenesulfonamides appeared to be less active and 6-methyl-3-nitrobenzylsulfonamides did not give the expected compounds. It has been found that synthesized vicinal halo amides can easily cyclize in alkaline conditions to give 1-sulfonylaziridines. The regioselectivity of aziridine ring opening has also been studied. It was established that strong nucleophile attacks terminal carbon which leads to the breaking-up of 1–3 bond and subsequent aziridine ring opening. In contrast, weak nucleophiles (water, potassium rhodanide, hydrogen bromide)…

A method for the synthesis of polymeric film based on a copolymer of styrene and maleic anhydride (stiromal) and oligodiol was suggested. Block copolymer of ethylene glycol and propylene glycol was used as oligodiol. It was shown that synthesized materials have moderate water swelling capacity in and ion-exchange properties. Static exchange capacity in 0.1 mol/L NaOH aqueous solution is within the interval of 1.44–1.76 mmol/g. At air-dry state films have a tensile strength of 4–6.6 MPa and an elongation at break tensile 38–61 %. The effect of stiromal molecular weight and oligodiol type, and conditions of film formation on ion-exchange and physical-mechanical properties of the films was studied. The synthesized material appeared to be able to sorb Cu2+-ions from neutral and acidic solutions. The distribution coefficient in case of sorption from slightly acidic solution with Cu2+ concentration of 50 mg/L was 48–50. Composite material with a metal submicroparticles uniformly distributed in the polymeric matrix was obtained by chemical reduction of copper ions sorbed. It was found that…

Reduction with ascorbic acid of tetraethylammonium salt of 18-molybdo-2-phosphate heteropoly complex impregnated on the filter or the chromatographic paper was investigated. Digital scan images of colored paper test strips obtained with the office scanner were resolved into R, G, and B colors. It was found that dependence of the coordinates of RGB colors on the ascorbic acid concentration is satisfactorily linearized using the equation y = yo + Aexp(–c/t). Rapid and simple colorimetric method for the determination of ascorbic acid based on its reaction with impregnated on the paper 18-MPC was developed. Method was applied to the determination of vitamin C in juices.

At the present time one of the main remediation technologies for such environmental pollutant as 2,4-dinitrotoluene (DNT) is advanced oxidation processes (AOPs). Since hydroxyl radical is the most common active species for AOPs, in particular for Fenton oxidation, the study modeled mechanism of interaction between DNT and hydroxyl radical at SMD(Pauling)/M06-2X/6-31+G(d,p) level. Computed results allow to suggest the most energetically favourable pathway for the process. DNT decomposition consists of sequential hydrogen abstractions and hydroxyl attachments passing through 2,4-dinitrobenzyl alcohol, 2,4-dinitrobenzaldehyde, and 2,4-dinitrobenzoic acid. Further replacement of nitro- and carboxyl groups by hydroxyl leads to 2,4-dihydroxybenzoic acid and 2,4-dinitrophenol, respectively. Reaction intermediates and products are experimentally confirmed. Mostly of reaction steps have low energy barriers, some steps are diffusion controlled. The whole process is highly exothermic.

Dyadechko, I. Purpose: to carry out the analysis of results of the research of influence of training loads on psychophysiological indicators of handball players to different phases of the menstrual cycle. Material & Methods: the researches were conducted on the basis of the Zaporizhia handball women's teams of superleague (16 women of 16-19 years old); research methods: analysis of references, questioning, psychophysiological methods of the research, integrated assessment of functional state and methods of mathematical statistics. Results: results of own researches of functional and mental states, and also changes of effectiveness ratio of game actions at handball players of high qualification are presented to different phases of the menstrual cycle. Conclusions: the received results demonstrate that the best conditions for manifestation of functionality of organism of the studied sportswomen are the post-ovulatory phase of the menstrual cycle. The next period, in which handball players can carry out exercise stresses of a little smaller power, is the post-menstrual phase.

The aim of this work was to develop a method for producing of molybdoferrate(II) precipitates by salting-out them from aqueous solutions by means of organic solvents. Dependence of the composition of molybdoferrate(II) precipitates on the pH of the reaction solutions was studied. Experiments on salting-out of molybdoferrate(II) with various organic solvents were carried out. As a result it was found that the best reagent for the molybdoferrate(II) salting-out is acetone. By its use, lowest quantity of the ammonium sulfate impurities was obtained. It is also of importance that by using of acetone the process of regeneration by distillation of the reaction solutions is characterized by the lowest energy consumption. A functional relationship between the solubility of molybdoferrates(II) and dielectric constant of the medium was established. By increasing the dielectric constant of the solvent solubility of molybdoferrates(II) rapidly increases. The linearized dependence ln(lnS)–ln(1/e) was proposed to predict the solubility of molybdoferrates(II) in various aqueous-organic solutions.

One of the first places among prominent scientists, whose names are related to Katerinoslav (Dnipropetrovsk) and scientific establishments of the city, belongs to one of founders of physical chemistry, the academician D. P. Konovalov. The article lights up the way of live and scientific creativity of the chemist, well-known for his works in chemical thermodynamics, catalysis, chemical technology. The original visiting-card of the scientist are laws the distillation of solutions, called after him. Famous representatives’ of Russian science D. І. Mendeleyev and A. N. Butlerov student and follower, he created a powerful national school of Physical Chemistry. He is known as a prominent organizer of science, public and state figure. There is a monograph and a few biographic essays dedicated to the academician D. P. Konovalov. Petersburg period of his life and activity is mainly represented in them, and the period of stay in Katerinoslav is represented poorly in literature. On the motherland the scientist is not well-known to wide public.

Phase equilibria in the binary CeO2–Yb2O3 system at 1100 °C were studied by X-ray diffraction in the overall concentration range. The samples of different compositions have been prepared from nitrate acid solutions by evaporation, drying, and calcinations at 1100 °C. The solid solutions based on various polymorphous forms of constituent phases. The boundaries of mutual solubility and concentration dependences the lattice parameters for all phases have been determined. The study of solid state reaction of СeO2 (fluorite-type, F) and Yb2O3 (cubic modification of rare-earth oxides, type C) at 1100 °С showed that two types of solid solutions based on cubic modifications of F–CeO2 and С–Yb2O3 in the CeO2–Yb2O3 system. These solid solution regimes were separated from end to end with the two-phase field: (F+С). The solubility of Yb2O3 in F- modification of CeO2 is about 15 mol % at 1100 °C. The lattice parameter of the unit cell decreased from а = 0.5409 nm in pure CeO2 to а = 0.5385 nm for the solid solution of boundary composition. The solubility of CeO2 in cubic C- ytterbium oxide…

The study reveals an energy-, resource- and eco-friendly method for preparation of sulfur-containing lubricant additives via interaction of fatty acid ethyl esters of rapeseed oil with elemental sulfur. The structure of synthesized compounds under various reactants ratio (5–50 wt.% of sulfur), duration (30–240 min) and temperature of the process (160–215°С) was investigated using various analytical techniques. According to the established data, aside from addition to double bonds, the side reaction of hydrogen substitution at α-methylene groups near these bonds occurs and induces the formation of conjugated systems and chromophoric sulfur-rich derivatives. Also, we found that increase of process duration evokes growth of polysulfane chains, in contrast to the raise of temperature, which leads to the formation of sulfur-containing heterocycles and hydrogen sulfide, as a result of elimination. Influence of accelerators on sulfurization of fatty acid ethyl esters was also examined. The most effective among them are mixtures of zinc dibutyldithiocarbamate with zinc oxide or stearic…

The new mathematical method useful for quick treatment of polarization curves obtained for corrosion process has been proposed. This method is based on function dependence between corrosion current density, Tafel constants, diffusion current density, ohmic resistance and polynomial coefficients that fit the polarization curve within ±30 mV overpotential range. The proposed method is robust and fast. Application of this method for partial reaction of corrosion process with activation, diffusion, activation-diffusion control has been considered. The method has been tested on real objects: Ni/0.5 mol/L H2SO4, Zn/0.5 mol/L NaOH, Zn/3 % NaCl, Zn/3 % Na2SO4, Armco iron/0.5 mol/L K2SO4. Obtained Tafel constants and corrosion current density values correlate with published data.

The reaction of chromium(III) chloride with the amino acid ethylglycine in a 1:1 molar ratio of metal to ligand has been performed. The complex with monodentate coordinated ethylglycine [Cr(CH3СН2CH(NH3)COO)(H2O)3Cl2]Cl∙3H2O (І) has been synthesized. Interaction of compound (І) with the α-аlanine results in formation of different-ligand complex [Cr(CH3СН2CH(NH3)COO)(СН3CH(NH3)COO)(H2O)3Cl]Cl2 (ІІ). The complexes I and II have been analyzed by IR and UV/Vis spectroscopy. Significant difference in wave numbers of carboxylic group valence vibritations (nas(COO–)–νs(COO–)=220 cm–1 for (I) and nas(COO–)–ν s(COO–)=244 cm–1 for (II))confirms that both amino aсids are coordinated to Cr3+ by oxygen of carboxyl group. Compounds (І–ІІ) have the octahedral structure. Two bands of transition (4Т1g¬4A2g and4Т2g¬4A2g) have been observed in the visible part of the spectrum and one band of transition (4Т1g(Р¬4A2g in UV region. The parameters of crystal field of complexes have been calculated (Dq = 1640 cm–1, В= 627 cm–1 and b = 0.61 for (I) and Dq = 1700 cm–1 В= 553 cm–1 and b = 0.54 for (IІ)). The…

In this work provides an overview and comparative analysis of existing software for simulation of power systems MicroGrid. Based on comparative analysis determined that for a relatively small scale MicroGrid no adequate software for modeling the power consumption of the system. Thus, the authors have proposed appropriate software and are its modular structure. Showing the relationship between software modules. Identified seven core modules, each of which represents a specific set of functions to perform tasks assigned to the software. The description of each main module, namely its functionality. The authors paid particular attention to the module that provides the process macromodelling. Showing stages of the process and parameters that affect the terms and simulation results, based on which the proposed use advanced algebra of structural numbers. It was also shown a relationship between the module and the module macromodelling interaction with the PLC communication environment. This is necessary because the relationship is realized directly control devices that are in the PLC…

The estimation of the degree of elaboration of the problem of the social innovation introduction process in the context of implementation of innovative development models. The article generalises approaches of foreign scientists to the definition of innovation in General and justifies the author's concept of social innovation as materialized solutions that more efficiently modify directly or indirectly selectively fixed institutions and institutions in various sectors of the national economy of the country at the appropriate stage socalizing transformations. Determined that social innovation is a static category and appear in the result of the relevant direction of the process of the social innovation introduction process. It is established that the result of the social innovation introduction processis not social innovation, and not its implementation and the achievement of the desired social change. Invited to consider the social innovation introduction process as a set of practical actions of the state, legal entities and citizens on the design and implementation of social…

Purpose. Exploring by monolithic concrete slabs tests under static load of the possibility of corrugated steel decking bearing anchoring by bolted connections. Methodology. Test specimens were manufactured: fragment models of monolithic concrete bridge deck slabs with external reinforcement by corrugated steel decking with bearing anchoring by bolted connections. Specimens were tested under pure bending scheme by static load. Findings. During the tests carrying capacity of monolithic concrete slabs, reinforced by corrugated steel decking with bolted bearing anchoring, was determined; determined carrying capacity is comparable with such capacity of slabs with welded bearing anchoring. After the tests was made a conclusion that corrugated steel decking affects on the survivability of samples by preventing the progressive collapse of specimens. Originality. During the laboratory tests data of carrying capacity of specimens was received, nature of crack formation, features of work and destruction of specimens were described. Practical value. The experimental confirmation the…

To prevent the negative impact of external thermal actions on metrological characteristics (precision, measurement ranges, etc.) of impulse laser rangefinders of sighting systems the practical importance is finishing electron-ray surface processing of optical elements, which prevents defects on the elements surface (cracks, delaminations, chips, flows etc.), leading to a sharp deterioration of devices and their failures during operation.The aim is to improve the metrological characteristics of impulse laser rangefinders when operating under conditions of external thermal impact.The experimental research is conducted and it established the critical values of external thermal impact (heat flow and time of its action), the excess of which leads to the formation on the elements surface the negative defects that lead to their destruction.The optimal ranges of changes of parameters of the electron ray (thermal action density Fn = 7∙106…8∙108 W/m2 and the speed of movement V = 5∙10-3…5∙10-2 m/s), within which there is maximum improvement of properties of the surface layers of the optical…

In this article, continuing idea of development of the symmetric block data encryption algorithms which aren't based on Feystel's network the new symmetric block algorithm is offered.In the offered algorithm are used a combination of conversions: bit-by-bit addition on mod2, matrix transformation on mod256, the S-unit and the table of compression, realizes encoding 128 (in modification 128+32l) bit data units by means of 128 (in modification 128+32l) a bit key of k, where l=1,2,…, d, d<.

Purpose. The global objective of the work is to analyze the elements of the safety requirements of bridges designed in accordance with national regulations. Methodology. Theoretical study. Findings. The analysis of regulations standards. Originality. Important generalizations and the quantitative assessment of material consumption while increasing reliability were made. Practical value. Practical reliability management tool in the design process is formed.

Purpose. To analyze real stress strain state of prestressed concrete structures subject to creep and prestressed losses in the reinforcement in various stages of construction and operation. Methodology. The use of modern numerical methods and structural test. Findings. The paper describes the mathematical relationships for FEM for prestressed reinforcement concrete with creep. Recommendations were made on the choice of models. А comparative analysis was performed with experimental data on losses accounting. Originality. Modern design features for FE models of prestressed bridges and presented according to account in this model of prestressed reinforcement and long-term processes in the concrete has been described. Prestressing losses resulted from calculations on regulatory documents and experimental monitoring of existing data structures were compared. Practical value. Accurate accounting of long-term deformation in prestressed structures makes it possible in some cases to avoid in the construction places with overstress and as a consequence - occurrence of longitudinal cracks. In…

A layout and the calculation of the two mirrors extra-focal lens is presented.It has installed pas parameters of aplanatic correction and given the system summary graphics of the new composition flat-field image aplanat.The developed model develops settlement and methodical base of an calculation optics

The main features of the functional diagram kvazivektornogo control induction motor speed and position control method for constructing a system with fuzzy controller, which monitors defining model.

The improvement of method of making a mirror ellipsoid of revolution based on vertical-boring technology, which use the principles of trajectory copying, was proposed in this paper. The choice of material for making reflector was provided. The structural-functional scheme of a device for forming inner surface of ellipsoid and further finishing processing to obtain the required value of the coefficient of specular reflection was proposed. The simulation of the eccentric kinematics mechanism of the device work was done. The parameters of eccentric for boring inner ellipsoid with eccentricity of 0.76 and focal parameter of 44.11 mm were calculated

A comparison of the production of the boundary conditionsfunctioning of the bucket wheel excavator CPC-2000-28 / 3.5 in the development of faces with a Young's modulus of 2.1 GPa, defined in terms of classical and molecular wave approaches

The problems of comparing the accuracy of known algorithms of strapdown inertial orientation systems by computer V-test. A method according to the generalized representation of the drift error of the algorithm from step survey sensors in the form of dimensionless quantities.The effect on the accuracy of the algorithm step size survey type integrable equation, the type of algorithm, the number of polling steps in one step of integration. Two algorithms are proposed with precision at least an order of magnitude greater than that of known algorithms. The conclusions on the effectiveness of V-test for the analysis of the accuracy of the algorithms

The results of experiments to determine the effect of inhibiting additives in the composition of the ammonia-Selitrennoe explosives on the process exothermic reactions. Experiments with artificial mixtures of ammonium nitrate and sulfide matrix (pyrite). It is shown that the most effective inhibitors of stabilizing chemical reaction in the sulfide rock blasting charges akvatol are CaCO3 and NH4CІ

The article deals with the problem of information security of electronic documents. Special attention is focused on cryptographic algorithms for encryption, since it is the main mechanism ensuring the confiden-tiality of documents. The basic requirements for the development of cryptographic systems of electronic document protection has been considered in the article. The improved method of gamma cipher which takes into account the shortcomings of existing algorithms was suggested. Encryption of proposed meth-ods improved by changing the key sequence with each blocks of information. The block diagram of encrip-tion with the modification of gamma cipher was built in result. The criteria that affect the cryptographic strength of encryption were determined. The cryptographic strength of electronic document protection sys-tem built on the basis of the proposed method was researched. Using this modification will increase the effectiveness of electronic documents protection.Referense 13, Figures 4.

Reflecting the state of the legal protection of industrial property objects (inventions) in the field of protection of human life in the workplace and the prevention of non-industrial accidents in Ukraine 1992-1999. and compared with the corresponding core indicators in Russia. Describe the state of development of patent protection on a number of key areas of life safety, presents quantitative indicators on this aspect of the invention, the devices, methods and substances

Stable generators of light impulses nano and subnanosecond duration can find a wide usage in an experimental technique, instrument-making. As a light source in such generators it is perspective to use stable, broadband, fast-acting light-emitting diodes on the basis of carbide of silicon, working in the mode of electric break-down. There is a necessity of creation of stable reshapers of pulse current for their power supply. A objective of this paper is creation of such reshapers on the basis of the avalanche and high-speed field-effect transistors.A lot of types and copies of inexpensive epitaxial transistors working in the avalanche mode is tested. The optimal interval of break-down voltages of collector junction is experimentally determined. Temporal instability of reshapers on avalanche transistors is investigated. Behaviour of their ageing(degradation) is studied. The circuit design of reshaper on the field transistor working by avalanche transistor control is developed. That allows to form the subnanosecond impulses of current through light-emitting diodes by amplitude to 1 А.

The structural and technological polarization aspects of multicomponent solid solutions of A3B5 compounds, particularly III-nitride, have been considered. It is shown that in the lattices of binary compounds of various sizes, ionic and electronic nanostructures, the atom substitutions cause local electric fields and different potential barriers, which can be clustered with a predominant directed electric field vectors. From the standpoint of the energy storage media, a comparative analysis of polarization in multicomponent solid solutions of semiconductors and ferroelectrics has been carried out. Multi-component solid solutions of A3B5 semiconductors for the first time treated as unordered system of atoms, unlike the orderly crystalline distribution with translational invariance and symmetry. Solid solutions based on heterogeneous quaternary structure (AlInNSb and BInNSb) have been proposed for new promising radiating systems with possibility of energy conversion and accumulation.Byblos. 20, Fig. 5.

Spark generators find more and more application for medical practice at different surgical and therapeutic procedures, for example, in dentistry for removing tumors of different origin, for stopping bleeding, for root canals preparation etc. Invasions with using of such apparatus are called electrosurgery.The authors developed a block diagram of a spark generator that extends the functionality of the equipment for installation on the normalized setting power of spark discharge for performance of appropriate medical procedures: maximum power - for surgical removal (cutting) of biological tissues, reduced power - for coagulation; for desiccation- minimum power; at the same time high reliability in the work of spark generator is ensured.

The development of growth process of multilayer semiconductor structures enables investigation of a new class of infrared detectors – detectors on quantum structures. The current trends of infrared receivers’ development are caused by active material research for a variety of nanostructures. The current state of development of infrared quantum structure detectors using ternary semiconductor alloys is considered. The maximal detectivity values of traditional detectors and quantum structure detectors are presented. The analysis of parameters for different types of materials and structures is performed.

The article describes an automated system designed study vibrations and cutting forces during turning. The developed automated system allows you to control three components of the cutting force (Px, Py, Pz) and the acceleration in the process of turning. The operator has the ability to take data in real time, save and carry out the processing of the experimental data obtained in PowerGraph software package. The system is designed to optimize the treatment process and the establishment of optimal applications of new tool materials

The influence of dangerous and harmful factors of fire on human body in case of liquidation of accidents at nuclear power plants. It has been shown that the combined effect of various factors of fire and radiation increases the severity of the injury and course of disease

The paper describes three aspects of virtual market of electrical energy. Legislative base of alternative source using in energy-supply system including “green tariff” is presented. Calculation of economical parameters in order to estimate effectiveness of different alternative source is made. Technical solution for DC, AC, and hybrid energy transmission schemes are developed.References 8, figures 6, tables 3.

Regulation of electricity prices is based on the consideration of static data that does not allow to evaluate the dynamic change of tariff prices in local isolated systems. When a jumpy change in isolated power generating system with diesel generator, which is usually the main permanent source of electricity in such systems, there is a change of tariff price which can not be taken into account when using static models. This article presents a dynamic model that combines, on the one side, the energy performance of the power system, and the other - economic indicators of the macroeconomic closed system. An example is an isolated system, that contains a diesel generator and consumers. Created model allows to investigate the effect of transient processes in generator on changing the economic system cost indicators and estimate an adequate tariff price for both producer and consumer of electricity.References 10, figures 6, tables 3.

The article suggested the equivalent circuit of the inverter mechanical values with piezoelement in the scheme of the active high-pass filter with multi-loop feedback. The frequency converters transmission ratio is received. The modeling and study of the frequency response of piezoelectric transducers using computer modeling in MS9 package where performed. This bimorph according to the theory of electromechanical analogies presented by series-parallel oscillating RLC - circuit. The correspondence of computer and mathematical model of the converter real converter, which is confirmed by the coincidence of the frequency and characteristics of the amplitude. The information generated by a computer model of the frequency response transducers match the frequency response, and based on mathematical models. It was established that the non-linearity of frequency and amplitude-frequency error transducers depends on the angle between the polarization vector and the vector of the electric field of the output voltage. For drives on the basis of the modified active filter circuits treble with an…

By applying the method of separation of variables can be solved integro-differential equation of bending of the diaphragm and defarmatsii basis taking into account the creep of the diaphragm materials and the basics in time, and to determine the contact pressure under the diaphragm sole deflections in any section of the diaphragm, bending moments, shear forces. It uses parameters diaphragm material creep and base plugins diaphragm deformation and a base value and a diaphragm function and its roots

The work contains the results of research on creating theoretical foundations of modern condition monitoring biotechnological facilities, including those medicines that allow initial prediction of disease dynamics vibration characteristics, which can be used to create new methods and tools in medical diagnostic systems. In the offered article covers the basics of formation imaginary area, tangent to the real surface. Currently it is the continuation of the theme to the accuracy of motion biological and technical objects [1, 2].A formalized analytical models of definition and registration violations vibration characteristics of the system biotechnical object (BTO) of its configuration, which reflect the dynamics of normal mobility object and possible violations of the kinematics of the object are offered. They models are provide analysis of objects that correspond to its current state on the basis of multi information signals from the integrated TONTOR sensors [3, 4]. Received formal models provide features determining vibration characteristics limbs and a decision at their further…

It is shown that for the mathematical description of the dynamic behavior of the soil, the simulated solid porous multicomponent viscoplastic medium, it is better to take the medium viscosity is not constant, and as a function of soil properties and dynamic coefficient of bulk viscosity, corresponding to the value of this function on a dynamic chart

The functional diagram of the device for the accelerated testing of collecting machines and methods of testing

Features of finding a maximum power point of a solar battery on basis a matching pulse converter are described. The impact of the input current pulsation of the matching converter on the energy amount of the solar battery is analyzed. Taking to account the shifting an operating point of the solar battery caused the pulse converter, search a maximum power zone instead a maximum power point is proposed. A condition of maximum power zone is formulated.Bibl. 6, fig. 3.

Purpose of the Article. The main purpose of the article is to make complex statistical analysis of tourist expenses of foreign visitors.Methodology/Methods. We used mixed technique of selection that implies rules of random and proportional selection. Computer software SPSS was used to compute statistical data for corresponding analysis.Scientific aim. Corresponding methodology of tourism statistics was implemented according to international standards.Results. Important information was collected and grouped from the major Georgian airports. Techniques of statistical observation were prepared. Representative population of foreign visitors and a rule of selection of respondents were determined. We have a trend of growth of tourist numbers and share of tourists from post-soviet countriesconstantly increases. Level of satisfaction with tourist facilities and quality of service has grown, but still we have a problem of disparity between quality of service and prices.Conclusions. The design of tourist expenses of foreign visitors is diverse; competitiveness of tourist products of Georgian…

Silicon carbide sensors occupy an important segment of the market of devices for extreme conditions usage. It has been shown that one of the semiconductor materials for optimum temperature and flow rate of a SiC polycrystalline cubic modification doped in process low temperature of growth 3CSiC by acceptor impurity boron (B).The goal was to develop thermoanemometer based on 3CSiC (B) and to study its characteristics. Velocity and temperature sensors of the anemometer were made of one block in the form of plates: area 1´1 mm2 and a thickness of 200 - 300 microns. Calibration characteristics of the sensor resistance up to 700K and the anemometer in the temperature range (290 - 410) K were determined. Temperature coefficient of resistance was 3,5 × 10-2 grad-1 at T = 300K. Temperature and velocity fields of convective air currents generated by the heated plate were measured by this anemometer. Measuring accuracy was: for flow rate 0.1 m/s, and for temperature 0,1 ° C with step 2 mm.

It is established that the content of gun-cotton number one low molecular weight fraction of cellulose nitrate from 1.5 to 5% is provided to obtain a solid cellulose nitrate of high quality with stable physical and chemicalproperties and characteristics. It is shown that in the process of mixing and compaction is cellulose nitrate destruction. Initially, the storage of gunpowder dominated crosslinking process at later stages of the process of destruction

One of tasks of modern computational optics is the problem of complete automatization of an optical system (OS) design procedure according to different criteria. The widespread local optimization techniques have a significant drawback: initial OSs with good quality are typically required. To solve the problem of finding the lowest value of the evaluation (merit) function in given space of allowed parameters, modern global optimization (GO) methods can be applied. For purpose of automated lens design, different authors have proposed to use such GO techniques as simulation annealing, genetic algorithms, etc. In this paper, the possibilities of one adaptive method (namely, differential evolution Cauchy, proposed in 2013) are numerically studied. An algorithm of the method is characterized by presence of an internal mechanism for self-adapting the coefficients of a classical differential evolution algorithm. Besides, it incorporates the Cauchy distribution to generate new "random" values of above-mentioned coefficients. The algorithm has been implemented in own computer program,…

Purpose. To provide statistical prediction model of highway bridges durability in Ukraine. Methodology. Theoretical study. Findings. The model of durability prediction based on statistical data analysis of technical state of reinforced concrete for highway bridges was developed. Originality. For the first time statistical analysis of the durability of road bridges that are in operation was carried out a. Practical value. The results are a practical management tool for reliability and resource of reinforced concrete highway bridges.

Purpose. Assessment of load-bearing structures of the building and development of solutions for its further safe operation. Methodology. The authors have developed technology and materials which give the reliable results of the repair work to the design of the strength and reliability of concrete structures including injection techniques and materials. In particular, the strengthening monolithic reinforced concrete structures. Originality. During research it was established that the cause of the reduction of concrete strength according to the theory of reinforced concrete resulted in the reduction of the bearing capacity of reinforced concrete beams and slabs. Practical value. To enhance the restored beams, the application of composite materials: ribbons and mats of carbon fiber were proposed

In the article the law with dual logarithm of rock within the kinetic theory of destruction

In this paper the principle of microwave filters design based on thin dielectric resonators is presented. Variants of construction of such filters are shown. The technique and the results of theoretical and experimental studies are described.Reference 5, figures 4.

The article analyzes the current trends in the development of the financial sector under the virtual regionalization conditions. Based on empirical research with regard to global financial institutions, options for addressing the problems of micro, meso and macro levels in the long-term prospect of the world economy have been suggested, in relation to the technological cycle of Kondratiev waves. In the study, research results of both the economists engaged in the problem of sustainable socio-environmental-economic development under the modernization and post industrialization conditions, and researchers of adjacent scientific fields. The analysis results of the present article allow for the discovery of new horizons and areas for scientific analysis to bring together science and practice, as well as for creating conditions for accelerating scientific and technological progress.

The article describes possibility of determination of thickness of lacquer coating based on electromagnetic-acoustic (EMA) method. Using mathematical modeling was analyzed influence of thickness of metal frame lacquer coating on acoustic parameters of EMA transducer. Experimental data show convergence between thickness of lacquer coating and acoustical pressure. Maximum acoustic pressure is a result of absence of coating. Increasing of coating thickness leads to the decreasing of pressure. Experimental data demonstrates good convergence between theoretical and experimental results.

Seal tamping plate of ash and slag mixture, filling karst collapse, it can be regarded as an inertial elastic-viscous-plastic medium, deformation model which can be represented by a system of equations, taking into account the non-linear seal depends on the strain rate of the mixture

The article is focused on creation of modern odorizers that ensure timely detection of natural gas flows without the use of special equipments for the smell in order to adopt urgent measures to prevent emergency and hazardous situations and measures of human health.Due to analysis of requirements for natural gas odorization and odorizers conditions to ensure the efficiency of the process of gas treatment aimed at identifying its flows and prevention of explosive environment the methods and principles of odorizers are defined. Taking into consideration the shortcomings of dripping and evaporator (wick) installations new technical solution of non-filter odorizer is proposed that operates effectively in a wide range of ambient temperature while using the odorant with different level of purity.

The structure of pores for carbonized carbon plastics is considered. Description of porous structure by the parabolic law of distribution on four local maximums is offered. Mechanism of forming for the system of transport pores are researched in the structure of carbonized carbon plastics taking into account oxidization of its lateral face and real distribution of porous structure on the size of radiuses at gasification in the medium of carbon dioxide. The task of carbon dioxide transfer on length of carbonizing carbon plastic pores, providing the given profiling of its structure in the process of gasification, is considered

The effect on the frequency properties of the mechanical fields of cylindrical piezoceramic radiators when they work as a part of the planar antennas such an important element of their designs as the piezoceramic compositions studied and the physical interpretation of the identified features in their behavior given.References 8, figures 4.

In this paper we give results of investigation of Fabry-Perot-type spherical mirrors interferometer hardware feature (HF), being used as a passive optical resonator for the selection of transverse higher-order modes in original beam of laser radiation. The major attention was focused on examining the transverse distribution of amplitude of light wave, passing through a given interferometer (resonator). By using the spherical mirrors, the operational properties of coherent spectrum analyzer optical systems can be extended considerably by means of illuminating the input signal with radiation, containing Gaussian-Hermite or Gaussian-Laguerre modes. The criteria of phase adjusting of a given resonator were grounded and the layouts of passive resonator for generating the transverse higher-order modes of radiation were proposed.Furthermore, it was demonstrated that while illuminating the input signal by the light beams, on the output plane of spectrum analyzer the differential of Fourier transform is developedExperimentally, the beams of coherent radiation, containing higher transverse…

The analysis of experimental data on the relationship between power and performance chasovыh stress waves in underwater blasting explosives, which differ in density and potential energy

Purpose. Justify the relationship of organizational and technological solutions of the transport facilities construction in the management of the enterprise as a whole and decisions on individual projects and submit this relationship in the form of a multidimensional organization structure. Methodology. Synthesis, analysis, combinatorial and morphological analysis. Findings. The model of business processes relationship, multidimensional organizational structure of such enterprises are developed and analyzed. The possibility of developing a computer model of operating activity of the organization in question is substantiated. Originality. Specific factors of the enterprise structure management and methods of the construction enterprise management are highlighted for the first time, their interaction is described. Practical value. Optimization of organizational and technological solutions, made in the management of the enterprise as a whole and decisions of individual projects.

Purpose. To investigate and to analyze the behavior of the areas near supports of reinforced concrete beam elements under the action of low-cycle loads of constant sign and repeated alternating loadings taking into account the influence of constructive factors and factors of external action for the future using of obtained results for improvement of calculated engineering technique. Methodology. Three series of experiments were performed to research this problem. Test specimens are reinforced concrete beams of rectangular cross section with sizes 200´100 mm, with length 1975 mm, that were reinforced with two flat welded framework with symmetrically located top and bottom longitudinal reinforcement 2Ø14А500С and transverse reinforcement 2Ø3, 4, 5ВрI with relative shear span = 1, 2, 3, that were made from concrete С 16/20, С 30/35, С 40/50, and that were tested by monotonic load, low-cycle alternating loading (= ±0,50; ±0,65; ±0,80) and repeated load of constant sign (= 0…0,50; 0…0,65; 0…0,85). Findings. This material considers and analyses obtained and processed experimental data,…

The work is devoted to research correction system of the magnetic channel gyromagnetic compasses. It uses the possibility of using not only the well-known algorithms of integrally-proportional correction channel and also additionally differential channel, which generally corresponds to the structure of a proportionally-integral-differential controller.Conducted comparison of the correction accuracy in conditions perturbations close to harmonic, and irregular perturbations. It is shown, that introduction of the additionally differential channel with time delay corresponding to a phase shift of one quarter period of the oscillations, resulting in a significant reduction of the dynamic error.Shown robustness of the regulator at a deviation of the oscillation period of the perturbations from used settings the controller

Purpose. Authors describe optimal combine cross section’s dimensions and form determination from the cost and strength point of view, taking into account physical-mechanical properties of utilizing materials. Methodology. Numerical investigations of composite uniform strength cross-sections have been provide based on the reduced cross section properties, peculiarities of structural materials and experimental results of various authors. Findings. The calculations and sections analysis done utilizing the double-T iron assortment. The calculation results compared for combine H-beam whose top flange changed on thin-walled steel case filled by concrete and ordinary H-beam strengthened by concrete slab. Its’ depth and width choses due to uniform strength conditions. Provided investigations shown the cost advantages of H-beams with top flange changed on concrete filled thin-walled steel case. Originality. Effective costless cross section’s dimensions and form peculiarity proved by the results of uniform strength calculations. Practical value. Composite structures are widely used in…

A model of loess soil, which reflects its rheological condition during the formation and development of the drawdown process

On the basis of the processing results of experiments using the similarity theory and the dimension determined correlations ejection funnels sizes on the basic parameters slabosvyazannono soil and explosion of a spherical charge

The article considers the possibility of estimating state of the human body under the influence of external factors. The analysis of methods for assessing state of the human body at the cellular level of noise is offered. It is shown that the main disadvantage of this diagnosis there is a need traumatic removal of the measurement information by implanting electrodes in the soft tissue of the patient. The authors conducted a theoretical study and simulation of the occurrence of ionic currents. It is shown that ion current can be separated from the background thermal current. The possibility of removing the measuring diagnostic information without injury to the patient's skin is substantiated. A method for quantifying the body experimental condition based on the use of the correlation function (statistical link) noise of high frequency signals between two points of biologically active human by removing the signals from the electrodes in contact with the patient's skin surface.

As part of the elastic-plastic dilatancy model, developed a method of modeling the dynamic deformation of the rock explosions hole charges in the water membranes. In this study the effect of dilatancy speed the process of destruction of rock

Flat sonar antenna solve the problem of one-sided sound radiation, formed from a finite number of emitters, each of which is made of water-filled circular cylindrical shell of piezo ceramic asymmetrical placed inside a circular cylindrical acoustic rigid type screen. The solution obtained "through" the problem allows determining quantitative values of related electrical, mechanical and acoustic fields, emitters and antennas in general.References 6, figures 1.

The method of certification testing of respirators antiaerozolnyh allowing to evaluate the protective properties of the product as a whole, its parts and components filter test method using a solid-polidispersnogotest sodium chloride aerosol. The advantages of this method compared to existing ones

From the standpoint of the potential explosive foam systems through a comparative analysis of their thermodynamic characteristics evaluated modifying matrix inclusions

Developed and offered for use at the sectoral level labor protection management decision support system. The basic requirements to ensure the transition to the new control technology with the use of the proposed system.The application of the system to solve the problems of health and safety management labor

The article presents the critique of existing in Western Europe, the USA, Canada, Russia, Ukraine, Belarus and Kazakhstan regulatory temporary vertical loads for the design of highway bridges and the necessity of their replacement by considerations of economy of material and financial resources.

Purpose. To submit recommendations to the visual evaluation of such type of structures on the basis of an analysis of existing freestanding pillars for technological pipe lines of the real objects and their strenthening by ensuring regularity. Methodology. The combination of numerical calculation methods (finite element method, implemented in the software complex Lira) and the method of expert estimations. Seismic resistance estimation and maintenance of existing freestanding pillars of technological pipelines. Findings. Obtained strengthening circuit designs that provide the requirements of both groups of limit states, the results are summarized in order to further visualize assessment of seismic stability of such structures on the basis of the presence and amount of bond elements. The proposed method of strengthening is relevant is the temperature dependence of the configuration of pipelines blocks. Originality. The approach proposed as a result of the visual evaluation of seismic stability of pillars for technological pipelines is the first step in the implementation of the…