bluuebunny/crossref_metadata_2025 huggingface dataset:
The role of public-private partnership in ensuring the economic security of the state
Authors: Kozin Mikhail , Pyrchenkova Galina , Radchenko Elena
Published: December 2019

According to the latest World Bank estimates, today the Russian economic system is in the tenth place in the global economic space [1].A successful solution to the problem of ensuring economic security of the state in the context of the growing role of economic factors that determine the need for more efficient spending of the state budget is determined, first of all, by the presence of an appropriate regulatory legislation and scientific and methodological support. The formation of a new applied methodology for ensuring the economic security of the country during the implementation of public-private partnership projects is a priority in the study. A distinctive feature of the approach to ensuring economic security in the implementation of public-private partnership projects is that they maximize the possibility of obtaining a generalized assessment of the implementation of promising public-private partnership projects, taking into account the adopted restrictions on the level of economic security [2]. To date, the Russian Federation has a certain production potential, which must be developed and effectively promoted. All this necessitates the development of theoretical, legal and organizational foundations, as well as managerial mechanisms aimed at improving the economic security of the state. The purpose of this study is to study the economic interaction of the state and business to ensure the economic security of the Russian state using financial and economic indicators.
Track loading on Russian Railways under modern maintenance conditions
Authors: Kochergin Victor , Maksimov Igor , Pevzner Victor , Polunina Evgeniya
Published: December 2019

Rail fasteners loading and its influence on the track deformability under modern maintenance conditions with increased cars axle loads is observed. The difference between oneand two-point wheelrail contact loading scheme is shown. The authors present the analysis of domestic and foreign methods of pads bench tests and show the necessity of carrying out tests imitating real (two-point contact) loading of pads. The bench test method for researching fastener loading and pad strain characteristics in a wide range of vertical and lateral loads under two-point contact scheme based on a number of field tests is presented. The results of static tests and following dynamic ones with cycling loading, which were carried out on a two-sleepers bench, are observed. Bench tests carried out by VNIIZHT and the analysis of the cyclic test methods showed the importance of fasteners tests with a real loading simulation making it possible to explain the causes of track gauge widening and decrease of track inclination, which considerably influences track stability and wear of the track and rolling stock.
Ship electromotive system with common DC buses
Authors: Gelver Fedor , Samoseiko Veniamin , Saushev Alexandr
Published: December 2019

The universal structure of the ship’s electromotive system with common DC (direct current) buses is proposed. It is shown that this structure allows: improving operational, energy, environmental and massdimensional characteristics of the motive system; increasing the reliability and survivability of the ship’s electric power system; braking propellers with the transfer of braking energy to consumers of its own needs or to the energy storage; redistributing energy between propulsion electric machines with the dissipation of braking energy in the working environment; providing fuel economy in the range of 12^15 % depending on the modes of operation of the ship in comparison with the known structures of electric propulsion systems. Analytical dependences that allow choosing the voltage level of the electric generator and coordinating it with the level of nominal voltages on the propeller motors and other load connected to the voltage inverters are obtained. A function for the analytical description of the limiting reversible mechanical characteristic of the propeller is synthesized. The mathematical description of the braking and reverse modes of the propulsion electric plant is given. Synthesis of algorithms of control of propulsion electric plant with two propellers at braking and reverse is carried out. The time diagrams of the torque, speed and power changes at each of the propellers for the proposed algorithm of braking and reverse of the propeller motors are presented.
The treatment of optimizing container transportation dynamic programming and planning
Authors: Korchagina Elena , Bochkarev Andrey , Bochkarev Pavel , Barykin Sergey , Suvorova Svetlana
Published: December 2019

The article addresses the treatment of applying the method of dynamic linear programming to solve the task of choosing the optimal strategy for the containers dispatch, taking into account the significant unevenness of loading and shipment of containers. The optimizing container transportation dynamic planning could be treated as mathematical model of the dynamic multi-period task of the loaded containers shipment, which allows the choice of the optimal strategy for sending containers, taking into account the significant unevenness of their loading and dispatch from the railway freight station. The efficiency of considered method is proved by numerical calculation being presented to disclose the dynamic linear programming algorithm implementing to solve the problem.
Concept of systemology of general transport infrastructure
Authors: Kazaryan Ruben
Published: December 2019

The fundamental modernization of the transport industry, which began in the mid-nineties of the last century, required the implementation of new approaches to building an integrated transport system of the country through the intensive integration of all types of transport. This caused not only the introduction of new organizational and management processes in transport, but also the consolidation of the activities of transport industry scientists to the development of new industry documents and the revision of existing ones. The problems of economic substantiation of decisions in the field of integrated use of the country’s integrated transport system are particularly acute. Therefore, there is an urgent need to create a systemology of the general transport infrastructure on the basis of a modern scientific and methodological assessment of the effectiveness of the integrated use of various types of transport, including: criteria for assessing the effectiveness of transport for ensuring the national security of the country; economic and mathematical models of the integrated use of various types of transport in the interests of ensuring the national security of the country; methods of economic substantiation of the integrated use of transport in the interests of ensuring the national security of the country; scientific and methodological recommendations for improving the economic efficiency of transport for ensuring the national security of the country
Skid adjuster for humps
Authors: Demyanov Alexander , Demyanov Alexey , Rybak Alexander
Published: December 2019

The paper based on the analysis of the working conditions of railway transport shows that, ceteris paribus, an increase in actual durability and mean time before failure of rolling stock units is obtained through maintenance of wheelsets, especially during logistic processes on nonmechanized humps. One of the main causes for the service life decrease of wheelsets is brake damage. To eliminate such brake damage on highways, on-board braking dis-tance regulators mounted on the locomotive are used. In the hump yards, using such systems is not possible, since under marshalling, cars are detached from the locomotive. In this regard, an industrial challenge turns up to design a similar in purpose braking distance regulator for humps through skidding. To solve this problem, we developed a method of controlling the speed of cars to be sorted, which complements the widely used technology of the shoe braking and avoids the formation of one-way sliders. The paper presents a skid adjuster, which excludes brake damage to the rolling stock wheels by the slides on the humps using the shoe braking techniques. The motion equation of the rolling stock equipped with a skid adjuster on the hump tracks is developed. In the result of this study, an equation of car motion in the system of “rolling stock Hughes regulator way” allowing to enter the working elements of Hughes controller to an existing and debugged algorithm of any slides with minimal change it.
Using alternative fuels to increase energy efficiency in the transport sector
Authors: Gamayunova Olga , Kulakov Kirill
Published: December 2019

The trend of recent years is the constant increase in fuel consumption by transport. Transport is the most important consumer of the highest quality types of liquid fuel, a large consumer of electricity. The article describes the main types of alternative fuel, the advantages of replacing gasoline with natural gas, evaluates the economic efficiency of conversing a car to gas and proposes general measures for energy conservation and energy efficiency in the transport sector.
Dynamics of information entropy of road safety provision systems in Siberian regions
Authors: Petrov Artur
Published: December 2019

This article considers the issues of dynamics of road safety provision systems in three multiscaled systems (Russia, Siberian Federal Okrug or SFO and separate regions of SFO). The indicator of relative information entropy Hn of road safety provision process was taken as the characteristic of system orderliness. The ideology, methodic and results of quantitative assessment of road safety provision systems information entropy H were considered. Time series of modification of relative information entropy Hn of road safety provision systems in 2004.. .2018 in Russia, Siberian Federal Okrug and individual subjects of SFD were presented. Special attention was paid to consideration of the re-searched process in the Republic of Tuva. This region is characterized by nonstandard, different from general trend dynamics of information entropy H of road safety provision system. The general conclusion of the article is that during last 15 years information entropy of road safety provision systems significantly decreased, i.e. orderliness of formation process of road traffic participants safety greatly increased. However, results achieved in this sphere by Siberian regions are still far from best world results.
Recognition of objects in infrared band
Authors: Loktev Daniil
Published: December 2019

Within the course of the present research, the mathematical and algorithmic supporting of hardware-software system of control and monitoring that uses images obtained in visible and infrared wavelength band as the source of initial data has been developed and implemented. The paper defines the conditions for obtaining an image, the quality of which is sufficient to detect a target object. The front-end of software package has been worked out that allows an operator to address tasks on detecting, tracking and identifying objects without specific knowledge and experience.
Urban development of the territory using environmental organizational and technological solutions
Authors: Subbotin Artem , Dostovalova Aleksandra , Smirnova Vladislava
Published: December 2019

This article discusses issues aimed at determining the perception of modern urbanization. On the one hand, technological progress more and more enhances the environmental impact, thereby creating the prerequisites for the emergence of various environmental crises. On the other hand, it expands the possibilities of eliminating problems in this area. Therefore, there is a relationship between environmental impact, the level of economic development, and the level of development of civil society. Responsible attitude to the environment - an indicator of the high development of civilization - these are the aspects of the ecological development of megacities that urbanism deals with. Particular attention is paid to the need for an environmentally friendly modernization of modern urban spaces. The problem of reducing landscaped and forested areas in connection with the rapid increase in urban areas is considered. In order to clarify the latest urban development trends, innovative technologies and approaches to construction, as well as to the ecological organization of the urban environment, are considered.
Urban-planning analysis of the project of infill development in terms of sustainable development of the city
Authors: Popova Ekaterina , Ptuhina Irina
Published: December 2019

This study is devoted to two pressing problems of Russian urban development: infill development and sustainable development of territories. The authors put forward the concept of assessing effectiveness of land usage, based on urban-planning standards, which is substantiated relationship between planning parameters and sustainable development of the city. The authors also considered the project of residential infill development, and proposed alternative options for planning solutions that are more consistent with current regulations.
Sustainable development as a trigger for new architectural and spatial solutions
Authors: Belash Egor
Published: December 2019

Architecture acquires its relevance at the moment when the architect shifts his attention from specific architectural issues about space, composition, functional program, etc. to something that goes beyond professional issues. He begins to think about architecture from the perspective of other disciplines, for example, from the perspective of sustainable development and ecology. These changes give rise to new spatial solutions that could not have arisen if the architect had not changed his way of thinking. Ecology is already used by some architects not only as a way to make the building more efficient, but it allows to find a new basis of thinking about architecture, where the shape and space of the building are subject to energy efficiency, environmental friendliness and adaptability. The goal of the article is to identify the methods of generating new architectural and spatial structures in the buildings of modern architectural firms that arose because of changing in the terminological apparatus of thinking about architecture based on an ecological approach. Several illustrative projects are considered in the work and two types of spatial construction, conditionally called natural and artificial, are revealed on their example. These two methods of shaping stem from the ecological approach and enter into an interesting dialogue, which is expressed in new non-standard solutions for shape of a building.
PMB quality problems based on its morphology and used equipment
Authors: Vysotskaya Marina , Kharlamov Evgeniy , Denisov Vasily , Kurlykina Anastasiya
Published: December 2019

In the first part of the study, a direct relationship is established between the influence of the morphology of PMB (polymer modified binder) on the totality of its consumer properties and its tendency to destruction. The second part of the study is devoted to the influence of technological equipment used for the production of polymer modified binder on its properties. It was experimentally established that having the same initial components, PMB of completely different quality were obtained at the output. According to the degree of increase in rigidity (penetration value at 25 °C), obtained PMBs can be conditionally positioned as follows: prepared using a paddle mixer, a colloid mill, and an extruder. It is proved that the high elastic properties of PMB can be achieved by using paddle mixers that do not damage the long polymer macromolecules during the process. However, such binders are prone to delamination. To eliminate this negative aspect, the use of additional crosslinking agents is necessary. PMB prepared using an extruder has lost its elastic abilities, has become tough, with a high rate of cohesive strength. Thus, it is noted that when designing PMB compositions, it is necessary to carefully choose not only the raw material base but also the technological equipment for its preparation.
Energy efficient renovation of typical buildings in the subtropics
Authors: Yurchenko Elena , Volkov Alexander , Kakosyan Asthik
Published: December 2019

The field of study is the experimentally justified choice of material for a single-layer, energy-efficient thermal protection of the exterior walls of typical buildings in the subtropics. A decrease in the vapor permeability of the mineral heat insulation at a humidity of more than 50% has been experimentally confirmed, and their loss of heat-shielding properties during moistening has been substantiated. It is recommended to correct the vapor permeability values of external walls with multilayer heat protection with Rockwool due to a decrease in the diffusion resistance coefficient of the wet zone of the material compared to the dry zone. Based on a comparative analysis of the design parameters of the types of thermal protection, it is recommended to use thermal plasters as single-layer thermal insulation systems. The experimentally established value of open porosity of 83.1%, for thermo-plaster based on foam glass, made it possible to choose protection against moisture in the form of penetrating Penetron waterproofing. The use of such protection reduced the value of open porosity of samples to 59.2% and eliminated the effect of condensate on energy efficiency when modernizing existing buildings.
Influence of vibration impacts from vehicles on the state of the foundation structure of a residential building
Authors: Zolina Tatiana , Kupchikova Natalya
Published: December 2019

In this work, experimental studies were conducted on the effect of vibrational influences from highways on the state of the foundation structures of a five-story residential building in Astrakhan. The studies were combined with an examination of the geo-base, foundations, and foundation of a multi-story brick residential building. Studies have shown that over four years, damaged building structures underwent significant changes due to increased vibration from the highway, and the rate of deformation in the supporting structures prove their emergency state. It is confirmed that the main factors affecting the magnitude of vibration acceleration of the building foundation structure are: structural type of the building; distance from the building to the source of seismic waves; longitudinal wave propagation velocity in the soil layer.
Influence of urban planning documentations on the development of urban areas
Authors: Ainullina Karina , Kryahtunov Alexander
Published: December 2019

In the Russian Federation, a harmonious system of urban planning documentation has developed. it is represented by three main documents: the general plan of the city, the rules of land use and development, documentation on the planning of the territory. This system of urban planning documentation is designed to solve all management decisions.
Sustainable underground development: innovation and regulation (example of solar transmission systems)
Authors: Belyaev Valery
Published: December 2019

The review of features of development of underground space in the large cities of the country and practice of introduction for this purpose of innovations is resulted. The article presents the results of the study, the subject of which is to consider the shortcomings of legal regulation and standardization in the field of transmission of daylight (solar) light under the ground through the use of light guides and other devices. The purpose of this study was to find ways to improve these areas of state regulation. To assess the current situation in the field of regulation under consideration, the analysis of the effectiveness of the main regulatory legal acts, documents on standardization, as well as a review of a number of literature sources. The assessment of the implementation of individual projects is taken into account. According to the results of the analytical stage and taking into account the forecast of modern strategic directions of development of the construction industry, proposals are given to improve the situation (amendments and additions to normative legal acts, documents on standardization, etc.). The implementation of such proposals will require coordinated work of the Ministry of construction of Russia and other authorized agencies and organizations. The implementation of the results of the study can contribute to the sustainability and efficiency of the development of underground space in our cities.
Justification of the bridge span vertical stiffness on high-speed railways
Authors: Diachenko Leonid , Benin Andrey
Published: December 2019

When designing bridges on high-speed railways, special attention should be paid to ensuring the safety of train traffic and the comfort of passengers. Excessive structure deformations (both elastic and non-elastic) result in unfavorable irregularities in the train movement pattern on the bridge and so can lead to violation of the traffic safety requirements as well as to vibration and acceleration of the train body, which is inadmissible due to its effect on the human body or the transported goods. In this paper, based on numerical simulation, the results of the study of the motion of a high-speed train along bridge structures of the dynamic bridgetrain interaction was performed with respect to various models of high-speed trains running along the bridges. The obtained dependences help to provide a practical assessment of high-speed passenger car dynamics and passenger comfort under the most unfavorable conditions, when the train is running along a multi-span bridge. For these purposes, the dependences of the admissible value of the relative vertical deflection are presented, based on the envelope curves that show the typical dynamic passenger car parameters (natural frequency of car oscillations) and Corresponding with their oscillations on the multi-span girder bridges with various lengths
Maintenance of construction pit against hydrological influences
Authors: Olekhnovich Yanis , Sulatskiy Kirill , Kulakov Kirill
Published: December 2019

During long-term operation, buildings and structures for various reasons receive various defects and damage in the form of precipitation and subsidence of the soil base, rolls of buildings and structures, deformations and displacements of the elements of the bearing base, which are recorded by geodetic methods. Traditionally, while examining buildings and structures, geodetic methods are based on optical instruments (theodolites, levels, total stations) and grades, which are installed on the elements of controlled buildings and structures are used. The indicated optical methods, on the one hand, give high accuracy in registering deformations of the foundations and structures in comparison with other known methods, and on the other hand, the most famous methods have a number of disadvantages. This article has collected and refined information about one of the most effective geodetic method for assessing the deformation of the structures
Digital transformation of social sector as the factor of development and security of the country
Authors: Voskresenskaya Elena , Vorona-Slivinskaya Lybov , Panov Sergey
Published: December 2019

The present research is aimed at investigating the current state of digital transformation of governance, economy and social sector. Basic attributes of digitalization of governance, economy and social sector are studied, particularly the mechanism of transformation of significant part of economic cooperation into information and telecommunication space; active introduction and application of e-money and smart contracts into civil transactions; development of e-governance. Problems of digital sector inevitably affect the compatibility of the economy under the current conditions, since lag in receiving and processing of relevant data and inability to use digital resource result in the loss of preceding market position. In terms of asymmetry of international trade, digital dependence of one particular country on another entails the increase in economic progress gap between these countries. If a country does not possesses these developments or has lost any of technological solutions, then nothing new can be worked out, so the next step is impossible. This is the reason why the state of digital sector, particularly its hardware base, special technological equipment that provides the necessary parameters for an integrated circuit, is the key factor for the prospects of social development.
V. Vernadsky: from the geochemistry of technogenesis to the scientific thought of the global society
Authors: Drotianko Liubov , Yahodzinskyi Serhii
Published: December 2019

The paper features the main theses of V. Vernadsky’s theory about scientific thought as a global phenomenon. The possibility of the use of the ideas of philosophers-cosmists to understanding the phenomenon of scientific discourse is analyzed. The authors come to the conclusion about the complementarity of the scientific ideas of V. Vernadsky modern approaches to the analysis of science as the driving force of the globalized society.
Historical prerequisites for the formation of quality criteria in the development of highspeed rail lines
Authors: Okrepilov Vladimir , Lebedeva Tatiana , Kuzmina Svetlana , Yakovlev Andrey
Published: December 2019

An increase in the speed of various flows, both information and transport ones, including in railway transport, requires compliance with increasingly large number of criteria conditions. Such criteria are safety, economic efficiency, environmental friendliness, comfort and ergonomics for both an individual passenger and passenger traffic. Over more than half a century of history, high-speed railways have become a continuously developing innovative industry that ensures compliance with all the above conditions and provides a further large-scale field of scientific activity. The pace of their construction is increasing, despite the reduction in the total length of the railway network in the world and digital economy.
Problems of development of environmental initiatives of the public and business in cooperation with municipal management
Authors: Balabanova Anna , Keschyan Nadezhda
Published: December 2019

The article studies the problems of the public and business in the field of development of environmental initiatives and the problems of interaction with the municipal environmental management. The research was conducted in the tourist city of Russia, where ecology is of great importance for the development of tourism. The regulatory legal acts of the city and the municipal environmental management system were researched. A survey was also conducted of public organizations and businesses, which in the city became the initiators and participants of environmental projects. The research confirmed that there are problems highlighted by the public and business in the development of environmental initiatives in collaboration with municipal environmental management. Some problems create obstacles to the development of initiatives and reduce the level of business’s desire to spend their time and resources in the field of ecology. The initiatives of business and the public were ahead of the legislation both at the state level and at the municipal level. These initiatives made it possible to organize work to promote the environmental literacy of the population and separate waste collection. The absence of a system of interaction with organizations involved in environmental activities and responsible for this system of the post, the lack of educational work in the field of environmental literacy of the population and representatives of the city administration, the lack of a single information resource in the field of ecology and environmental initiatives of the city have a negative impact on the number of city initiatives in the field of ecology., insufficient education and clarification in the implementation of state legislation in the field of ecologic and separate waste collection.
Sustainable modeling the life cycle of a real estate development project
Authors: Gusakova Elena
Published: December 2019

The most well-thought-out strategic planning of real estate development projects is an extremely urgent task. A real estate development project affects the building area throughout the life cycle. The modern concept of the planning horizon of a development project should be based on the analysis of its full life cycle and the consideration of various positive and negative external effects in design decisions. For this purpose, the accumulated representative experience has been studied, the most relevant and demanded areas of forecast analysis have been identified and analyzed, which determine the strategy and specifics of real estate development projects in the early stages. The following specific areas of analysis of the development project were identified: the long-term trend of development of the building t area, scenarios of the project life cycle, the adaptability of project decisions to changes, involvement of interests of groups of the territorial community in the project, the integration of positive effects at the stages of the project life cycle, the multiplier effects of the project. The structure of the positive effects of the forecast analysis of the project is systematized, the accounting of which extends and strengthens the strategic planning of development and becomes the most significant competitive advantage of the project.
Digitalization of the world economy - a factor in the development of society
Authors: Grabovyy Peter
Published: December 2019

Another restructuring is underway in Russia, this time digital. Almost all sectors of the economy began to transform in order to keep up with progress and increase their efficiency. The development of the digital economy in the country will improve the quality of life of citizens and increase the global competitiveness of domestic industries. The state began its activities in this direction with the formation of the Digital Economy program, which was developed in 2017 by the joint efforts of the state, business and the expert community. The article presents the main indicators of the development of the digital economy in Russia and its position in international ratings. The indicators characterizing research and development in the field of ICT; personnel of the digital economy; ICT, content and media sectors; telecommunications development.
Social distributional aspect of penal actions
Authors: Lapshin Valery , Korneev Sergey
Published: December 2019

Criminal legislation of any state provided at the initial stages of its development for punishment as the only measure of criminal law influence on a person committing a socially dangerous act. Moreover, the types of punishment mainly boiled down to long periods of isolation of the convicted person from society: hard labor and imprisonment. Only in the middle of the twentieth century Russian legislation ensured the distinction between the categories of “criminal punishment” and “criminal liability”, although the official definition has not yet been formulated. The main legally significant signs of criminal punishment as measures of state coercion and other measures implemented within the framework of criminal liability coincide, and therefore it is not possible to ensure a consistent legal differentiation of these categories. In addition, “other measures” of a criminal law nature are highlighted in the Russian criminal legislation, their essence is currently uncertain, since they apply to persons incapable of criminal responsibility (insane, some groups of minors), and persons convicted of a crime. Such terminological inconsistency creates problems in practical application of provisions of the criminal and penal legislation to ensure the correction of convicted person and the prevention of new crimes. Basing on the results of the study, it was proposed to divide the groups of measures that are implemented within the framework of criminal liability institutions and other measures of a criminal law nature. The former apply to persons convicted of a crime. “Other measures” are applied to persons incapable of criminal responsibility for a committed socially dangerous act due to a state of health or social and intellectual immaturity: irresponsible, mentally retarded, minors. This will provide the proper terminological distinction of the essence of legal categories and will allow identifying true goals of their application.
Social, enlightenment and penal measures to prevent Islamist terrorism
Authors: Davidenko Marina
Published: December 2019

The fight against crimes of a terrorist nature is a task of international importance. Modern penitentiary systems in various countries were not ready for effective work aimed at preventing international terrorist threat. Persons convicted of committing terrorist crimes are currently serving their sentences in non-specialized correctional institutions that do not involve targeted counter-terrorism preventive measures with convicts. On the contrary, representatives of Islamic terrorist organizations are actively using the prison environment to propagate pseudo-religious ideas that encourage terrorism. One of the few attempts to prevent Islamist terrorism among people suspected or convicted of terrorist crimes was made by the US leadership at the beginning of the XXI century. The American penitentiary experience shows that the use of purely punitive methods of correcting a criminal terrorist does not guarantee the convict’s refusal to carry out terrorist activities. Therefore, it is necessary to develop a model of a special type of penitentiary institution aimed at providing an effective prevention of terrorist activity and suppressing the recruitment of new participants to terrorist organizations. The main preventive measures to use in this type of correctional institution should be the separate maintenance of convicts representatives of various social groups, as well as educational and religious activities explaining the true social values observed both by Islam and other world religions.
Experience economy in the system of culture and education
Authors: Pushkareva Lyudmila , Pushkarev Mikhail
Published: December 2019

The economy of impressions in which the new level of interaction is formed between brands and target audiences gaining particular importance in new market reality. The company in a service sector, including higher education institutions, becomes the provider of “impressions” under these conditions. Impression economy includes art collaboration methods and tools in which different brands take an active part. Currently, cooperation between educational institutions and the art and cultural industries is becoming one of the effective mechanisms for promoting educational brands, increasing consumer loyalty, creating competitive market superiority. The article considers cooperation in the context of the Virtual Museum project between brands such as the Russian State Hydrometeorological University (RSHU) and the Russian Museum.
New investigations on the 32S(3He,d)33Cl reaction at 9.6 MeV bombarding energy
Authors: Cinausero Marco , Dell'Aquila Daniele , Lombardo Ivano , Vigilante Mariano , Barlini Sandro , Bolzonella Riccardo , Bruno Mauro , Buccola Antonio , Carturan Sara M. , Casini Giovanni , Cicerchia Magda , D'Andrea Maurizio , Degerlier Meltem , Fabris Daniela , Gasques Leandro , Gramegna Fabiana , Lepine-Szily Alinka , Mantovani Giorgia , Marchi Tommaso , Piantelli Silvia , Rigato Valentino , Scomparin Luca , Valdré Simone
Published: December 2019

The 32S(3He,d)33Cl one-proton transfer reaction is a powerful tool to investigate the spectroscopy of low-lying states in the proton-rich 33Cl nucleus. However, the extraction of firm differential cross-section data at various angles to benchmark and constrain theoretical models is made challenging by the presence of competitive reactions on target contaminants. In this paper we report on arecent measurement using a new generation hodoscope of silicon detectors, capable to detect and identify emitted deuterons down to energies of the order of 2 MeV. The high angular segmentation of our hodoscope combined with a suitable target to control possible contaminants, allowed to unambiguously disentangle the contribution of various states in 33Cl, in particular the 2.352 MeV state lying just few tens of keV above the proton separation energy.
Shape transition in the neutron-rich Y nuclei and its evolution across the isotopic chain
Authors: Iskra Łukasz W. , Fornal Bogdan , Leoni Silvia , Michelagnoli Caterina , Bottoni Simone , Cieplicka‒ Oryńczak Natalia , Jentschel Michael , Kandzia Felix , Kim Yung Hee , Köster Ulli , Porzio Carlotta
Published: December 2019

The evolution of the deformation across the Y isotopic chain, in the vicinity of N = 60 boundary, has been studied using gamma spectroscopy methods. The nuclei of interest have been produced by neutron induced fission of 235U and 241Pu targets, during two experimental campaigns named EXILL and FIPPS at the Institute Laue-Langevin in Grenoble. The emitted gamma rays have been collected by HPGe and LaBr3 detectors providing the identification of the high-spin levels in the 94Y and 96Y isotopes up to 6 MeV excitation energy, as well as information about the half-lives of the in-band states in the 98Y nucleus. The obtained results shed new light on the onset of deformation in the neutron-rich Y isotopes and, in general, in the A ≈ 100 region.
Multinucleon transfer reactions and proton transfer channels
Authors: Mijatović Tea , Szilner Suzana , Corradi Lorenzo , Galtarossa Franco , Bakes Samuel , Brugnara Daniele , Carozzi Gabriele , Colucci Giulia , Čolović Petra , Fioretto Enrico , Gadea Andres , Goasduff Alain , Gottardo Andrea , Jaworski Grzegorz , Jelavić Malenica Deša , Marchi Tommaso , Mengoni Daniele , Milin Matko , Montagnoli Giovanna , Nurkić Deni , Pollarolo Giovanni , Popočovski Romana , Scarlassara Fernando , Siciliano Marco , Soić Neven , Stefanini Alberto , Testov Dmitry , Ur Calin , Valiente - Dobón Jose Javier , Vukman Nikola , Zanon Irene
Published: December 2019

Transfer reactions have always been of great importance for nuclear structure and reaction mechanism studies. So far, in multinucleon transfer studies, proton pickup channels have been completely identified in atomic and mass numbers at energies close to the Coulomb barrier only in few cases. We measured the multinucleon transfer reactions in the 40Ar+208Pb system near the Coulomb barrier, by employing the PRISMA magnetic spectrometer. By using the most neutron-rich stable 40Ar beam we could populate, besidesneutron pickup and proton stripping channels, also neutron stripping and proton pickup channels. Comparison ofcross sections between different systems with the 208Pb target and with projectiles going from neutron-poor to neutron-rich nuclei, as well as between the data and GRAZING calculations, was carried out.Finally, recent results concerning the measurement of the excitation function from the Coulomb barrier to far below for the 92Mo+54Fe system, where both proton stripping and pickup channels were populated with similar strength, will be discussed.
Fusion hindrance in light and heavy systems
Authors: Montagnoli Giovanna
Published: December 2019

The phenomenon of hindrance in sub-barrier heavy-ion fusion has been confirmed by several experimentalevidences and it is now recognised as a general phenomenon of heavy-ion fusion process. In many cases the signature of fusion hindrance lies in the trend of the logarithmic slope of the excitation function and of the S factor at low energies. The comparison with stadard Coupled-Channels calculations is a more quantitative evidence for its existence. In many medium-heavy systems the hindrance effect has been recognised with different features depending on the various couplings to the inelastic and transfer channels. Different theoretical appro ches have been proposed to explain the hindrance but the underlying physics is still a matter of debate. Hindrance is observed in light systems, independent of the sign of the fusion Q-value, with different features. In the case of the 12C + 30Si system the effect is smallbut it is clearly observed. Near-by cases show evidence for systematic behaviours. A very recent experiment has concerned the lighter case 12C + 24Mg where hindrance shows up clearly, because a maximum of the S factor appears already at a relatively high cross section σ=1.6mb. The consequences for the dynamics of stellar evolution have to be clarified by further experimental and theoretical work.
How do we infer shell effects at high-excitation energies? A new spectroscopic probe to search for magic numbers
Authors: Ngwetsheni Cebo , Orce José Nicolás
Published: December 2019

The nuclear dipole polarizability is mainly governed by the dynamics of the giant dipole resonance and, assuming validity of the brink-Axel hypothesis, has been investigated along with the effects of the low-energy enhancement of the photon strength function for nuclides in medium- and heavy-mass nuclei. Cubic-polynomial fitsto both data sets extrapolated down to a gamma-ray energy of 0.1 MeV show a significantreduction of the nuclear dipole polarizability for semi-magic nuclei, with magic numbers N =28, 50 and 82, which supports shell effects at high-excitation energies in the the quasi-continuum region. This work assigns σ-2 values as sensitive measures of long-range correlations of the nuclear force and provides a new spectroscopic probe to search for “old” and “new” magic numbers at high-excitation energies.
Evolution of nuclear spin-orbit splittings with Skyrme functional SAMi-T
Authors: Shen Shihang , Colò Gianluca , Roca-Maza Xavier
Published: December 2019

A new Skyrme functional has been developed with tensor term guided byab initiorelativistic Brueckner-Hartree-Fock (RBHF) studies on neutron-proton drops. Instead of extracting information on the tensor force from experimental single-particle energy splittings, the RBHF calculations do not contain beyond mean-field effects such as particle-vibration coupling and therefore the information on the tensor force can be obtained without ambiguities. The new functional gives a good description of nuclear ground-state properties aswell as various giant resonances. The description for the evolution of single-particle energy splittings is also improved by the new functional.
Framatome, porteur d’innovations pour la GEN IV et les réacteurs avancés
Authors: Serpantié Jean-Pol , Hamy Jean-Marie
Published: December 2019

Framatome est connu pour ses réalisations dans les 2e et 3e générations de réacteurs, et récemment pour sa contribution à la construction des deux EPR de Taishan qui délivrent désormais 3500 MWe sur le réseau chinois. Le groupe fournira aussi à l’exploitant quinze ans d’assemblages de combustible. Mais Framatome travaille également aux réacteurs de 4e génération au travers de ses ex-filiales NOVATOME et INTERATOM en Allemagne, intégrées de longue date dans le groupe.
Mit Heilerde natürlich behandeln – innerlich und äußerlich
Authors: Uehleke Bernhard
Published: December 2019

Heilerde besitzt aufgrund ihrer geologischen Zusammensetzung und Entstehungsweise einen hohen Feinheitsgrad und damit eine große Oberfläche. Deshalb hat sie ein besonders ausgeprägtes Bindungsvermögen für Bakterien, Säuren und andere Stoffwechselprodukte. Sie eignet sich dadurch für die innere Anwendung bei gastroenterologischen Störungen sowie äußerlich bei Hauterkrankungen.
Toxikologische Grenzwerte und Definitionen
Authors: Lampen Alfonso
Published: December 2019

Nationale und internationale wissenschaftliche Gremien befassen sich mit der gesundheitlichen Sicherheit von Lebensmitteln und ermitteln toxikologische Obergrenzen des duldbaren Aufnahmebereichs für deren Inhaltsstoffe und etwaige unvermeidliche Fremdstoffe. Diese Grenzwerte fließen in nationale Rechtsvorschriften und die Entwicklung internationaler Standards der Lebensmittelsicherheit ein.
Evaluation of Ophthalmology Residency Program Web Sites
Authors: Shaath Deena S. , Whittaker Thomas J.
Published: December 2019

Objective This article evaluates the current availability of information on residency program Web sites that may be of interest to residency applicants.

Design Cross-sectional analysis of 117 Accreditation Council for Graduate Medical Education (ACGME)-accredited ophthalmology residency program Web sites from October 17, 2018 to December 17, 2018.

Methods Programs were identified through the ACGME-specialty search, and the URL links provided by the program were evaluated for directing the user to the institution, department, or residency program. If a link was not functional or not provided, programs were identified through a Google search. Web sites were evaluated for having information on how to apply, application requirements and eligibility, and providing a link to the San Francisco (SF) Match. Educational content included: didactic instruction, rotation overview, research requirement information, active and/or past research, institutional conferences, academic conferences, call schedules, and charitable work. Recruitment content included current residents and faculty and their biographies, graduate placement, salary, benefits, surrounding area information, message from the Program Director, Chair, and/or Chief Residents, surgical statistics, affiliated hospital information, selection criteria, and association links. Data was stratified by program size, geographic region, and top 20 hospitals in ophthalmology by the U.S. News & World Report.

Results Nonfunctional links were provided by 16.2% of programs, and 3.4% did not provide a link. Application instructions were presented by 83% of programs and 77% provided a link to the SF Match. Greater than 80% provided didactic instruction, rotation overviews, research expectations of residents, and faculty and resident listings. Up to half of programs listed information about application requirements and eligibility, call schedules, surgical statistics, academic conferences, charitable work, salary, and selection criteria. A message to applicants was displayed by 48% of programs, and 16% of programs provided association links. Programs with more than 15 residents provided more educational content than programs with less than 12 (p = 0.042). Differences in recruitment content were observed among programs in the Northeast and West, (p = 0.003) and programs in the South and West (p = 0.037). No other differences were observed.

Conclusion The Internet is frequently consulted during the residency application process. Many programs provide basic information, but this can be further optimized to maximize the utility of residency Web sites.
A Case of Needle-Directed Pulse-Spray Pharmacomechanical Thrombolysis of Acute Brachial Artery Thrombosis
Authors: Samireddypalle Yugandhar , V. Uma Maheshwara Reddy , Deepak Chinmay , Neelakantan Sankar , KS Amitha Vikrama
Published: December 2019

Acute limb ischemia is a serious disabling condition. The management options depend upon the patient symptoms and signs of ischemia in the affected limb. The management options include surgical thrombo-embolectomy and catheter directed thrombolysis. Catheter directed thrombolysis has now become the first line of management in symptomatic cases. Here, we discuss a case of acute left brachial artery thrombosis which was successfully managed by needle-directed pulse-spray thrombolysis.