bluuebunny/crossref_metadata_2025_split huggingface dataset:
Full control of polymer properties during the two‐stage on‐demand free‐radical photopolymerization of fiber‐reinforced polymers
Authors: Pierrel Johann , Ibrahim Ahmad , Croutxé‐Barghorn Céline , L'Hostis Gildas , Allonas Xavier 
Published: June 2019

ABSTRACTThe effect of a two‐step free‐radical photopolymerization of an acrylate resin on the polymer properties in the presence of glass fibers is studied. It is found that a first irradiation leading to a partial conversion is effective for the fabrication of a preimpregnated glass‐fiber composite, which can be further processed and fully polymerized through a second irradiation. DMA analysis evidences the formation of a first relatively soft polymer embedding unreacted double bonds during the preirradiation. Further process allows the completion of the photopolymerization together with a reinforcement of the polymer network. This obviously affects the final mechanical properties of the photocomposite. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 1440–1447
Benchmark calculations of intramolecular hydrogen bond energy based on molecular tailoring and function‐based approaches: Developing hybrid approach
Authors: Afonin Andrei V. , Vashchenko Alexander V. 
Published: June 2019

AbstractThe energy of the intramolecular hydrogen bond has been recognized and may be estimated by the molecular fragmentation method and the method based on the functional dependence on the hydrogen bond descriptor. Both basic methods for estimating the energy of intramolecular hydrogen bonds are compared using a series of the hydroxycarbonyl aliphatic compounds as the benchmark. The functional dependencies are established that provide the best fit with the molecular fragmentation method. As both methods for estimating the energy of an intramolecular hydrogen bond have disadvantages, a new hybrid approach is proposed. In this approach, the average value of the intramolecular hydrogen bond energy calculated by the molecular fragmentation method and functional dependence method is used as the estimated parameter. The hybrid approach provides a compensation of the error in the evaluation of the interaction strength compared to the molecular fragmentation method or the functional dependencies method. Hence, it allows one to more reliably rank the strength of the intramolecular hydrogen bond in homogeneous series of molecules. Based on this approach, the strength of the О−Н···О=C intramolecular hydrogen bond in the studied compounds are classified in the energy scale in terms of weak, moderate, and strong interactions.
Efficient production of levan using a recombinant yeast Saccharomyces cerevisiae hypersecreting a bacterial levansucrase
Authors: Ko Hyunjun , Bae Jung-Hoon , Sung Bong Hyun , Kim Mi-Jin , Kim Chul-Ho , Oh Baek-Rock , Sohn Jung-Hoon 
Published: June 2019

Abstract
Levan is a fructose polymer with diverse applications in the food and medical industries. In this study, levansucrase from Rahnella aquatilis (RaLsrA) was hyper-secreted using a Saccharomyces cerevisiae protein secretion system. An optimal secretion signal, a translation fusion partner (TFP) containing an N-terminal 98 amino acid domain from a mitochondrial inner membrane protein, UTH1, was employed to secrete approximately 50 U/mL of bioactive RaLsrA into culture media with 63% secretion efficiency by fed-batch fermentation. Although the purified RaLsrA was useful for enzymatic conversion of high-molecular-weight levan of approximately 3.75 × 106 Da, recombinant yeast secreting RaLsrA could produce levan more efficiently by microbial fermentation. In a 50-L scale fermenter, 76-g/L levan was directly converted from 191-g/L sucrose by recombinant yeast cells, attaining an 80% conversion yield and 3.17-g/L/h productivity. Thus, we developed a cost-effective and industrially applicable production system for food-grade levan.
Deriving Thermospheric Temperature From Observations by the Global Ultraviolet Imager on the Thermosphere Ionosphere Mesosphere Energetics and Dynamics Satellite
Authors: Zhang Yongliang , Paxton Larry J. , Schaefer Robert K. 
Published: June 2019

AbstractThis paper reports a preliminary result for estimating thermospheric temperature around 155 km from the N2 Lyman‐Birge‐Hopfield bands observed by TIMED/Global Ultraviolet Imager (GUVI). Atmospheric Ultraviolet Radiance Integrated Code model (Strickland et al., 1999, https://doi.org/10.1016/S0022‐4073(98)00098‐3) calculations indicate that the intensity ratio in the N2 Lyman‐Birge‐Hopfield (0,0) and (1,0) bands at 144.5‐ to 145.5‐ and 141.0‐ to 142.0‐nm quasi‐linearly depend on N2 rotational temperature. The observed ratios and the Atmospheric Ultraviolet Radiance Integrated Code results are used together to specify the thermospheric temperature around 155 km under sunlit conditions. The estimated temperature agrees fairly well with the neutral temperature at 155 km from WACCM‐X model. The estimated temperature is also higher over the auroral oval and O/N2 depleted regions. Furthermore, meridional wave‐like structures were clearly seen in the derived temperature and were likely caused by traveling atmospheric disturbances.
Development of Magnetic Topology During the Growth Phase of the Substorm Inducing the Onset of the Near‐Earth Neutral Line
Authors: Tanaka T. , Ebihara Y. , Watanabe M. , Den M. , Fujita S. , Kikuchi T. , Hashimoto K.K. , Kataoka R. 
Published: June 2019

AbstractThe transition of magnetic topology is analyzed during the substorm. During the growth phase in the polar ionosphere, magnetic fields consist of three categories: closed magnetic field, open magnetic field leading to the northward interplanetary magnetic field (IMF), and open field leading to the southward IMF. While the open magnetic field region leading to the southward IMF expands consistently during the growth phase, the ionospheric onset starts inside the closed field line region. There should be triple points where three kinds of magnetic field coexist in the ionosphere. Connected to the triple points, complex magnetic topologies appear in the magnetosphere. There occur definitive changes in the global magnetic topology such as retreat of cusp nulls generated under the northward IMF, generation of plasma sheet magnetic fields with reverse curvature, generation of bifurcation areas on the magnetopause, formation of new dayside nulls, development of null lines on the flank, and generation of bifurcation areas (group of nulls) on the magnetopause. During the late growth phase, divergence Vx flow is excited in the central plasma sheet associated with the appearance of reverse curvature. The plasma sheet reconnection starts 5 min before the ionospheric onset from a localized area at X = −17.5 Re due to the reduction of the normal component Bz caused by divergence Vx flow. It occurs in the residual magnetic structure formed under the northward IMF as a three‐dimensional reconnection with a guide field By. The resulting two‐turn coil of magnetic field forms a plasmoid, which is ejected downtail.
What Do the New 2018 HIWIND Thermospheric Wind Observations Tell Us About High‐Latitude Ion‐Neutral Coupling During Daytime?
Authors: Wu Qian , Knipp Delores , Liu Jing , Wang Wenbin , Häggström Ingemar , Jee Geonhwa , Kwak Young‐Sil , Erickson Philip J. 
Published: June 2019

AbstractDaytime thermospheric winds observed by the balloon‐borne instrument HIWIND (High‐altitude Interferometer WIND experiment) during two flights in June 2011 and 2018 from Kiruna (68°N, 20°E), along with simultaneous European Incoherent SCATter radar ion drift data, are analyzed. National Center for Atmospheric Research TIEGCM (Thermosphere Ionosphere Electrodynamics General Circulation Model) simulations for both flights are compared with observations. The observed thermospheric winds from the two flights have many similarities. HIWIND‐observed thermospheric winds tend to be equatorward during the morning hours before noon and close to zero in the afternoon. In contrast, TIEGCM predicts poleward winds before noon and near zero in the afternoon. Southward interplanetary magnetic field Bz, occurring as the balloon passed through morning, was associated with greater equatorward meridional winds. The TIEGCM‐simulated zonal winds have large differences with observations under more active conditions. The second HIWIND flight confirms some important results from the first flight and further shows thermospheric wind variations under different interplanetary magnetic field conditions. HIWIND observations in general provide invaluable data for model validation and highlight deficiencies in current high‐latitude simulations.
Program Support for Selection Procedures for Environmentally Oriented Investment Projects
Authors: Bardakhanova T B , Eremko Z S 
Published: June 2019

Abstract
The aim of the work is to develop program support for selection procedures for environmentally oriented investment projects, including the calculation of traditional criteria for the effectiveness of the project, additional environmental criteria for the effectiveness of projects, application of methods for prioritizing projects and their selection with the use of modern information technologies. The article reveals the essence and features of environmentally oriented investment. A system of criteria for assessing the effectiveness of environmentally oriented investment projects has been developed. The conceptual bases of creating an information system for calculating the financial, budgetary, economic, social and environmental indicators of investment projects and their effectiveness, as well as assessing their priority, are proposed for consideration. Calculations of the priority of investment projects were carried out on the basis of the information system developed by the authors using multicriteria analysis methods. As a result, each of the criteria for the effectiveness of the investment project is given a specific quantitative value, and each investment project is a quantitative assessment of the priority of the project, which allows using the results of calculations to select projects and make managerial decisions on their implementation. The proposed information system can be a tool for adopting an effective environmentally oriented economic solution. The conducted experimental calculations showed the adequacy of the developed information system to the existing subject area. The Federal Service for Intellectual Property, Patents and Trademarks of the Russian Federation issued a certificate on the official registration of the computer program for the developed software product.
Rating Assessment of the Potential of Extractive Industry Resources in the Economic Zones of the Republic of Sakha (Yakutia)
Authors: Nikiforova V V 
Published: June 2019

Abstract
Spatially, the territorial structure of the Republic of Sakha (Yakutia) economy is divided into five economic zones: Central, Western, Southern, Eastern and Arctic zones, on whose territories there are many mineral deposits that are unevenly explored and involved in economic turnover. The article presents a quantitative integrated assessment of the potential of extractive industry resources in the economic zones. The assessment was performed using a point rating system with weighting factors determined by the expert evaluation method based on resource importance and taking into account the importance of each resource type in the region’s economy. It has been revealed that the main factors that influence on the potential of extractive industry resources, along with transport and energy infrastructures, are exploration immaturity of deposits, quality of ores, low content of mineral resources, as well as market conditions. In this regard, to improve the ranking of an economic zone, it is recommended to carry out exploration and appraisal activities in economic zones, which need for a strong government support not only in funding, but also in regulation.
Development of Coal Industry as a Resource and Raw Material Base of the Region
Authors: Zaitsev R G , Afanasev M M , Komissarova M A 
Published: June 2019

Abstract
Sector-specific issues of coal industry and its place in the regional economic system are defined in the context of utility theory since for any region it is important to balance the subjective and objective development priorities while implementing the investment process in the development of particular industries’ production companies. Structural logical concept of the development strategy choice for coal mining enterprises is based on their expected utility or their results value taking into account the interests of all participants in the process and considering the needs to integrate the development priorities of the industry and the region as the resources and raw materials base. Strategy development process for successful operation and effective development of coal mining enterprises is offered to be implemented in accordance with Markov chains theory presented in the article. The methodology described provides more efficient use of the enterprise innovative potential consistent with their industry specifics.
Analysis and Assessment of the State of Pension Provision for People of the Russian Federation and Its Immediate Prospects
Authors: Latypov R T , Reznichenko D V , Ruchkin A V 
Published: June 2019

Abstract
The article reveals the topical issues of citizens’ pension provision for the population of the Russian Federation. Economic instability in the country had an objective effect on the pension system as a whole. Growing over the past years budget deficit of the Pension Fund of the Russian Federation, the imperfection of normative regulation of non-state pension funds largely determine the instability and lack of specific perspectives for the pension market’ development in Russia. It should be recognized that despite the ongoing process of reforming the pension system and its legislative improvement, the reform of the pension system itself more actualizes, but does not solve the existing problems of pension provision for citizens.
Development of the Professional Educational Program by Methods of Artificial Intelligence
Authors: Romanova E V , Klashanov F K 
Published: June 2019

Abstract
The article, in General, refers to the technology of training for the construction industry, and in particular the search for a more effective method of forming a professional educational program of training in the field of Computer science and technology (09.04.01). Over the past eight years, Russia has changed three state educational standards of higher education. The procedure of their implementation in the educational process is very time-consuming and takes place in a short time. In order to avoid gross errors and speed up the process of developing an educational program, it is necessary to use computer technologies, among which the most promising are the methods of intelligent systems. The article discusses the method of solving the problem with the requirements of the educational standard.
The Analysis of Trends and the Assessment of the Worldwide High-Tech Production Development
Authors: Astakhova E V , Reshetnyak E I , Ilchenko V V 
Published: June 2019

Abstract
The purpose of the article is to analyze the trends and assess the level of the development of high-tech production in various countries worldwide, as well as to theorize the directions of scientific and technical development of the country by means of increasing the value of innovative products. The prerequisites for the timeliness of mainstreaming of the development of high-tech production for national economies, including GDP growth and improving the competitiveness of the country in global markets have been analyzed. The main aspects of the fourth technological revolution have been identified. The need for regular monitoring of the indicators reflecting the state and the level of the development of high-tech industries in the countries worldwide has been demonstrated. A correlation and regression model of the dependence of the share of high-tech industries in the GDP structure has been developed for the positioning of individual countries in the global technological space with regard to the key market leaders. The model makes it possible to predict the changes in the contribution of high-tech industries to the GDP of the country by means of varying the indicators of scientific and technical activity. A model of the value creation chain for technology-intensive products with account of the institutional means of ensuring scientific and technical development as well as its strategic management at various levels of management (international, national, and local) has been proposed.
The Methodology of Modernization Processes Management in Innovation Networks
Authors: Salnikova Y , Pakhomova A , Dmitrieva E 
Published: June 2019

Abstract
An approach to managing modernization in the framework of an innovation networks was developed, based on the fact that the formation of priority directions for modernization was proposed to be implemented taking into account the potential for modernization of the enterprise and its subdivisions. An algorithm is developed for analyzing the sufficiency of the potential for modernizing production systems. The rating of the enterprises included in the business group was carried out to determine the most investment-attractive objects among them on the basis of the calculation of the complex index of the modernization potential, taking into account the organizational and managerial and personnel components of the modernization potential.
Model for Assessing the Human Capitalof an Enterprise
Authors: Plotnikov V , Pirogova O , Vertakova Y 
Published: June 2019

Abstract
Economic development in modern conditions has acquired a pronounced humanistic orientation. In this regard, human capital is seen as a key factor in production and social well- being. The analysis of human capital is traditionally carried out at the macro level of the economic system. At the micro level, it is studied to a lesser extent.
The purpose of the study is to form a model for assessing the human capital of an enterprise, consistent with the methods of assessing the value of the enterprise.
The methodical basis of the research is the systematization of the publications of Russian and foreign economists on the problems of human capital, human potential, labor potential with its connection of assessing the value of the enterprise.
The results of the research are the systematization of approaches to assessing the value of enterprise’s human capital, the classification of its types (investment, operational, basic) and working out the model for assessing the human capital of an enterprise as a part of its value.
Practical significance of the results: recommendations were developed to increase the value of the enterprise based on the management of its human capital. This ensures balanced social and economic development at the micro level of the economy.
Innovation Potential of the Modern Russian Civil Servants in Public Administration
Authors: Sergeevna N A , Vladimirovich R A 
Published: June 2019

Abstract
Innovation can be defined as a change in technology—more simply stated, in the way government workers/civil servants/public administrators do their jobs—whether the technology relates to a process, computer hardware or software, or the human side of the government enterprise. Contemporary advances in technology facilitating the rapid spread of information have led to worldwide societal changes and improved productivity. After analyzing civil servants’ professional activities, values, and attitudes, and assessing their capacity for change, public sector organizations must adapt functions and strategies. This is a systemic, behavioral analysis of the innovation potential of Russian public administrators. Empirical data were collected using a survey of Russian civil servants of the Sverdlovsk region, an analysis of their job descriptions, expert interviews, and focus-group interviews. The objective of this analysis is to assess innovation potential of these civil servants and identify factors that facilitate or hinder innovation potential within the Russian government. From these factors, practical strategies for increasing the level of civil servants’ innovation potential are deduced and presented. Results of the analysis expand management theories included in public administration literature and curricula thus leading to improved management training or retraining processes.
The growth of energy efficiency of the Baikal region is the basis for its sustainable development
Authors: Muzychuk S Y , Muzychuk R I 
Published: June 2019

Abstract
The Baikal region has a special status of economic activity, as an object of world heritage. In Lake Baikal there are about 20% of the world’s reserves of fresh fresh water. The urgency of energy efficiency growth is determined by the industry specialization of the economy and the requirements for preserving the Baikal nature. The purpose of the research: to identify the significant factors affecting the energy efficiency of the economy and to propose mechanisms for their implementation. A methodical approach is developed based on methods of economic-mathematical modeling, system analysis, statistical analysis, balance and indicative methods. An information and computing complex has been developed that includes: a system of models and databases for analyzing and forecasting the development of the fuel and energy complex of the eastern regions of Russia; economic-mathematical models of fuel and energy balances; methods for assessing the energy efficiency of the economy; methods of statistical analysis to identify factors that affect energy efficiency. Significant factors of reducing the energy intensity of the gross regional product of the Baikal region have been identified, and multiple regression equations have been developed to predict the energy intensity.
Composition and Structure of Microspheres in Ash and Slag Wastes on the Far East of the Russian Federation (Case of the CHPP-2 plant, Vladivostok)
Authors: Taskin A V , Grebenyuk I V , Elkin O I 
Published: June 2019

Abstract
The results of laboratory studies of the composition and structure of microspheres of ash and slag wastes of Russian Far East energy enterprises (in particular, CHPP-2, Vladivostok) are presented in this scientific work. It has been established that the microspheres are concentrated in particles of technogenic wastes with a size of up to 500 μm, with the prevailing mass of valuable geomaterial (75-80 %) being in narrow granulometric classes from 71 to 100 μm and 100 to 200 μm. Part of the microspheres is represented by unusual techogenic metal alloys (for example, antimony with aluminium), has a density of more than 1g/cm3, and when wet enriched in water precipitates. From a practical point of view, the investigated microspheres cannot be considered a ready commercial product, since they contain a significant amount of carbon concentrate, which is unburned solid fuel particles. In this connection, it is required to develop effective technological solutions for the extraction and purification of microspheres from ash and slag wastes from the thermal power industry of the Far East of the Russian Federation.