bluuebunny/crossref_metadata_2025_split huggingface dataset:
Natural radioactivity in aquatic ecosystems formed by self-flowing wells: the case of a water flow, a well “Cherkashinskaya 36-RG – stream – Aremzyanka river”
Authors: Aleksandrov A S 
Published: November 2019

Abstract
The article is devoted to the assessment of the radiation hazard of water and nearby bottom sediments of self-flowing hydrogeological wells, as well as the assessment of the radiation safety of personnel working with these materials for geological prospecting and national economic enterprises. The article is devoted to the study of the impact on the ecosystem of the geothermal waters of the self-flowing exploratory well “Cherkashinskaya No. b36-RG.” In 1965, it was drilled to study a group of iodine-bromine water deposits. The article presents data from a survey of natural background radiation, as well as data on the natural radioactivity of bottom sediments and the volume content of radium in water. The relevance of the work is due to half a century of pollution by highly mineralized iodine-bromine waters of the Irtysh catchment as one of the largest transboundary rivers in Western Siberia. The Aremzyanka River is a tributary of the 1st order of the Irtysh River, a stream flowing from the flowing well No. 36-RG flows into this river.
Analyzing the risk factors for improving the Russian mink efficiency
Authors: Khusainova N R , Vorozheykina T M 
Published: November 2019

Abstract
The article analyzes those factors that affect the functioning of domestic fur farms. In order to diagnose risks at the enterprises of the fur farming industry, a scientific approach using the matrix method is applied. The benefits of using this method have been studied. Using the example of fur animals for breeding mink, the risk matrix is considered. An author’s vision of the classification of consequences, probabilities, and risk levels is proposed. Using an integrated approach that includes various methods for measuring risk is proposed. This will provide for the most complete picture of the risks inherent in a particular business entity. The most probable and dangerous consequences and factors affecting both domestic and international fur farms’ activities are analyzed. A risk analysis at domestic fur farms should be carried out in order to prevent the occurrence of critical situations at all stages of the production process.
Planning the forest transport systems based on the principles of sustainable development of territories
Authors: Enaleeva-Bandura I M , Kovalev R N , Chernykh R A 
Published: November 2019

Abstract
The article identifies a new method of dynamic modeling in the design of the transport system in the forest fund (TSFF), which is based on economic and mathematical modeling and fuzzy logic tools. The combination of the indicated methods is designed to reduce the disadvantages of their use and increase the benefits. The article substantiates the choice of assessing the forecast level of the impact of risks on the activities of forestry enterprises (the method of expert assessments), using the methodological tools of fuzzy logic. The indicated method makes it possible to take into account a large variety of risk factors of the internal and external environment. At the same time, methodological aspects of fuzzy logic make it possible to formulate a quantitative assessment of qualitative indicators. The article substantiates the choice of tools for economic and mathematical modeling in order to state the design problem of the planned TSFF. Since the indicated method enables the formalization of the functioning of the timber transport system in the given conditions. The article presents a developed model that correctly takes into account the influence of risk factors when planning a TSFF, through the combination of fuzzy logic methods and economic and mathematical modeling. The advantages of the developed model include: considering the multivariance of material flows, vehicles, points of overload, etc.; automated processing of input parameters and effective data; using the model for forecasting, i.e. the possibility of deriving a fuzzy estimate of the efficiency of the timber transport system by identifying cause-effect relationships between the modeling object and the influence of risk factors on its functioning.
The burnt solid in adsorption treatment of water from heavy metal ions
Authors: Salishcheva O V , Tarasova U V , Moldagulova N E 
Published: November 2019

Abstract
The process of adsorption of ions of heavy metals Cu2+, Pb2+, Zn2+, Cd2+ from aqueous solutions with the mineral adsorbent burnt solid was investigated. Kinetic data on the adsorption process were obtained. Parameters of adsorption equilibrium using the Langmuir and Dubinin–Radushkevich equations have been calculated. The efficiency of extracting heavy metal ions upon modification of the adsorbent and in the area of low concentrations is shown.
Multi-agent modeling of the control system of space-time states of man-made objects
Authors: Bugakova T , Sharapov A , Knol I 
Published: November 2019

Abstract
The article discusses the development of a multi-agent system for solving problems of determining, controlling, and predicting the space-time states (STS) of objects. A generalized scheme of a multi-agent approach to solving the problem of determining the STS of an object is given. The article describes an algorithm “decision trees” on the example of the decomposition of the object in order to monitor and predict the STS of the structural parts of the object.
The economic benefits of the production of double haploid for selection of white cabbage
Authors: Mineikina A I , Bondareva L L , Domblides E A 
Published: November 2019

Abstract
An important task of any state in the world is to ensure food security. The Russian Federation is the third largest cabbage producer in the world. In the conditions of the modern market, for ensuring successful competitiveness, selection must promptly respond to consumer requests. To reduce some stages of the selection process, we used the modern biotechnological method of culture of isolated microspores in vitro. This method allows one to get homozygous lines in the first generation. In the Federal Scientific Center for Vegetable Growing, the protocol for obtaining doubled haploid cabbage cultures has been optimized and successfully applied in practice. However, for expediency of implementation of the obtained lines in the selection and seed-growing process, it is important for us to know the economic efficiency of production. The paper presents the data on the basic costs of obtaining lines of white cabbage with traditional and modern biotechnological methods of selection. The article provides a comparative assessment of their cost-effectiveness in the selection of white cabbage. It is shown that the use of the biotechnological method in combination with the classical method of selection allows to obtain pure lines with 100% homozygosity for 3 years. At the same time, economic costs of producing lines, when using doubled haploid plants of white cabbage, are reduced in 2 times.
Economic efficiency of growing domestic hybrids of sweet peppers in the steppe zone conditions
Authors: Mamedov M I , Gavrish S F , Pyshnaya O N 
Published: November 2019

Abstract
One of the main factors for increasing the efficiency of production of sweet peppers is the introduction of new high-yielding varieties and hybrids adapted to the growing conditions in order to fully realize their potential productivity. Every year, the leading breeding institutions of the country and foreign companies supply a large number of new hybrids to the market for subsequent introduction into production of the most productive ones. The main criterion for evaluating the effectiveness of varieties and hybrids is the annual economic effect of their introduction into production. The purpose of our research was to test domestic heterotic pepper hybrids suitable for production in industrial volumes, clarify the varietal cultivation technology for the steppe zone, and establish the economic efficiency of their cultivation. The work shows the economic efficiency of growing domestic hybrids of sweet pepper F1Victor, F1Medok F1Lekar, F1Aleksiy, F1Erivan using advanced cultivation technology. The article shows that domestic hybrids with a planting period of March 15-20 and plant density of 72 thousand/ha provided a yield of 73-78 t/ha, which was 12-20% higher than the F1Vedran standard. The calculations showed that the profitability of production is determined by the productivity of a particular hybrid. Among the studied samples, the most profitable (more than 30%) are F1Lekar, F1Aleksiy, which had a yield of 77-78 t/ha. High profitability was observed in F1Victor (28.9%) and F1Erivan (27.2%) hybrids, profitability is slightly lower in F1Medok (23.8%). In general, domestic hybrids have a 2.3-3.1 times higher profitability compared to the standard, which indicates the high efficiency of their cultivation in industrial production.
A perspective method of garlic enrichment (Allium Sativum L.) with selenium
Authors: Polyakov A , Alekseeva T , Soldatenko A 
Published: November 2019

Abstract
Obtaining high-quality products is one of the most important tasks of agricultural enterprises of all forms of ownership. Quality indicators are not only organoleptic indicators, but first of all, the chemical composition of the products manufactured. Quality food should contain the necessary macro-and micronutrients in a dose that meets the needs of the human body in them. In this regard, the development of methods for obtaining products containing microelements, in the quantity necessary to ensure the normal functioning of a person is a particularly important area at present. We have found that preplant treatment of chives and vegetative plants with a 0.1% solution of potassium selenite in combination with SAS and DMSO makes it possible to produce bulbs in which the content of selenium exceeds the control by 29.4 and 145.3 times. A similar treatment of cloves and plants with sodium selenite leads to an increase in the selenium content in the bulbs to 8.0 mg/kg and 7.3 mg/kg, or 169.8 and 157.2 times in comparison with the control. The proposed method of enrichment of garlic with selenium allows to improve the qualitative composition of this culture and increase its economic significance.
The concept of formation of agricultural food systems in the border regions on the principles of network-centric structures
Authors: Kundius V A , Kovalyova I V 
Published: November 2019

Abstract
The theoretical and practical approaches to the organization of the territorial economy in agricultural regions on network-centric principles are considered in this paper. Their effectiveness has been proven within the sinter theory in the conditions of market economy and planned economy. The effectiveness of horizontal linkages in clusters of commercial complex provides the opportunity to conduct economic activities, mutually beneficial, efficient use of resources usage cross-border territories. Exploring the resource potential of Large regions of Altai enabled us to identify opportunities to significantly increase the production of the ecologically clean certified meat and dairy livestock products with special properties and contains useful microelements, vitamins, competitive not only in the domestic but also in global markets. This is due to the problem of ensuring healthy nutrition as well as recruiting in world popularity, slow food movement, based on the principle of ecological compatibility of natural products consumed. Thus, the eco-production is able to become a “growth pole” for the rural territories.
Benchmarking sustainable energy technologies in cross-border regions: issues of economic efficiency
Authors: Chernikova O , Zlatitskaya Y , Klimashina Y 
Published: November 2019

Abstract
The long-term trends of world energy development envisage a radical increase in the energy efficiency, an increase in its quality indicators, and a transition from fossil fuels to the use of sustainable energy technologies. The article presents an algorithm developed by a team of authors for planning, implementing, and evaluating economic efficiency of benchmarking sustainable energy technologies in cross-border regions. Its use will allow optimizing the energy intensity of enterprises, ensuring energy security, economic efficiency and environmental stability of adjacent territories, preserving the mineral resource base, and improving the quality of life of the population.
Digitization of marketing activities of agricultural entrepreneurship in the conditions of the Kyrgyz Republic
Authors: Akzholova M , Osmonova A 
Published: November 2019

Abstract
The problems associated with the current trend in the consumption of natural food products, the sale of manufactured products, increasing the competitiveness of domestic products, foreign product intervention, ensuring the institutionalization of Internet commerce by the state are discussed in the article. The analysis carried out features of the introduction and development of efficient, digital technologies in agriculture. Also, promising areas of digitalization of the agro-industrial complex are highlighted by the authors. It was recommended to entrepreneurs to create such sites, the effectiveness of which reached the audience at an appropriate level, the volume of orders was maximum, which ultimately would increase profits and strengthen market position.
Introducing innovative farming methods in the adjacent territories of Russia and Kazakhstan
Authors: Artamonova T , Bondarenko S , Kaliyeva K 
Published: November 2019

Abstract
Attitude to nature is the basic value of the peoples of Eurasia. This is especially clearly manifested in the example of land use. The development of virgin lands in the adjacent territories of Russia and Kazakhstan led to the solution of the food problem, but with social and environmental consequences. Violation of the traditional integrity of human and natural being lies at their core. The authors argue that it is possible to restore the proportionality of their coexistence, including through the introduction of innovative farming methods as the basis for sustainable development of agricultural territories.
Low-Temperature Preparation of α-Si3N4 Powder via Combined High-Energy Ball Milling and Molten Salt Nitridation Method
Authors: Zhang Jing , Liu Guoqi , Li Hongxia , Sun Feng 
Published: November 2019

Abstract
In this work, α-Si3N4 powder was synthesized by a combined high-energy ball milling and molten salt nitridation method using silicon powder as raw materials, and NaCl-NaF binary molten salt as reaction medium and diluents. The effects of nitridation temperature, soaking time, and NaF content in the molten salt on the formation of α-Si3N4 were investigated. The results show that the nitridation of silicon powder was completed at NaF content of 10wt% in the molten salt after nitridation at 1200°C and held for 4 h. The α-Si3N4 content in the as synthesized powder is 96wt%. The α-Si3N4 whiskers with 40-280 nm in diameter and several microns to tens of microns in length appear in the final products. The crystal growth process of α-Si3N4 whiskers follows vapor-crystal (VC) mechanism.
Preparation and Characterization of Magnetic Gd3+Doped Hydroxyapatite Nanoparticles
Authors: Ruan Zhuozhi , Zhang Xiaojun , Xing Qingguo , Han Yingchao 
Published: November 2019

AbstractHydroxyapatite (HAP), the major inorganic composition of mammal bones, has good biocompatibility, biological activity and osteoconductivity. Gadolinium(Gd) with seven unpaired electron on 4f orbit can be used for MRI contrast agent due to its large electron spin magnetic moment and relaxivity. In this study, the magnetic Gd3+doped HAP nanoparticles (Gd-nHAP) were synthesized via coprecipitation method. Results showed that the magnetization of Gd-nHAP was gradually enhanced along with the increase of doping content of Gd3+, which indicated magnetic property depended on doping content. Moreover, with a fixed doping content of Gd3+, the increase of reaction temperature (60°C-280°C) did not generate significant effect on magnetization of synthesized Gd-nHAP. The result showed that magnetization of Gd3+has no strong correlation with crystallinity and crystalline size of HAP.
Preparation and SERS Study of Triangular Silver Nanoplates
Authors: Xu Runxiang , Yan Luting 
Published: November 2019

Abstract
Metal nanostructures have unique properties that differ from their bulk structures. Of the metals, silver has probably play the most important role in the development of plasmonics, and its unique properties make it well-suited for most of the next-generation plasmonic technologies. Among the various silver nanostructures, silver nanoplates have attracted considerable attention because of their shape-dependent optical properties, which have been applied in surface enhanced Raman spectroscopy (SERS). In this study, the direct chemical reduction route was used to prepare silver nanoplates. Then the influence of experimental conditions on the morphologies of silver nanoplates has been studied. The results has been proved by the UV-vis spectrum and the transmission electron microscope images of the triangular silver nanoparticle. Finally, the silver nanoplates have been applied in SERS properties with Rhodamine 6G as the probe molecules. It was found that the SERS enhancement ability of the silver nanoplates is remarkable. By comparing the advantages and disadvantages of solid Raman and liquid Raman tests, Liquid Raman test is considered to be simpler and more convenient, with high performance price ratio and extremely high application value in the future.
Preparation of Al2O3-SiO2 Aerogel by Supercritical Drying
Authors: Sui X.Y. , Xu J. , Zhang L. , Liu R.X. , Zhou C.L. , Wang K.Y. 
Published: November 2019

Abstract
Al2O3-SiO2 aerogel was prepared through sol-gel process and ethanol supercritical drying technology using aluminum chloride hexahydrate (AlCl3•6H2O) and tetraethoxysilane (TEOS) as precursors. Structures and properties of Al2O3-SiO2 aerogel were investigated by means of BET, XRD, SEM, FTIR, TG-DTA. At room temperature, the specific surface area of Al2O3-SiO2 aerogel was 574m2•g−1, and the average pore size was 26.34nm. The three-dimensional network skeleton was composed of leaf shape particles. Al2O3-SiO2 aerogel went through the transformation process of γ-AlOOH + amorphous SiO2 → γ-Al2O3 + amorphous SiO2 → Mullite (3Al2O3•2SiO2) when heat treatment temperature increased from room temperature to 1200°C. At 1200°C, the specific surface area was 162m2•g−1, the average pore size was 59.91nm.It was indicated that Al2O3-SiO2 aerogel possessed excellent high temperature stability and heat insulation performance.
Stress Responses of Polycarbosilane Melt under an Oscillating Shear Straining
Authors: Huang Liuying , Wang Hongyu , Cheng Xuan , Zhang Ying 
Published: November 2019

Abstract
A typical oligomers material, polycarbosilane (PCS) melt, was tested by using the advanced rheumatic expansion system (ARES) with a supplemental data acquisition card and an analog-to-digital converter (ADC). The stress response of the sample at 295 °C to the oscillating shear straining deformation with a 50% shear and an angular frequency of 3.142 rad/s were collected, processed by using the fast Fourier transformation (FFT) technique, and compared to the conventional dynamic stress response of the melt provided by ARES. It was found that the stress response of the melt was no longer sinusoidal and that the main frequency and the amplitude of the stress response were consistent with those provided by the conventional testing method. The PCS at 295 °C behaved like a typical yield fluid when it under the oscillating shear straining deformation with a 50% shear and an angular frequency of 3.142 rad/s.
Preparation of Silicon Carbide Reinforced Aluminium Matrix Composites (SiC/Al) by Selective Laser Melting
Authors: Zhang Jialian , Li Faliang , Zhu Qing , Zhang Haijun 
Published: November 2019

Abstract
Silicon carbide reinforced aluminium matrix composites (AMCs) attracted a lot of attention owing to their low density, high specific strength and specific stiffness, and good wear resistance. Selective laser melting (SLM) technique has been widely used in the preparation of complex structural product with high precision, short production cycle and low cost. In this paper, silicon carbide (SiC) powders and aluminium (Al) powders were mixed together firstly with a weight ratio of 15:85 and then used to prepare AMCs by SLM technology. The effects of laser power on the microstructures, microhardness and flexural strength of formed AMCs were studied. The results show that the relative density, microhardness and flexural strength of the as-prepared samples can be improved with increasing the laser power. Meanwhile, the samples prepared at higher laser power exhibit lower friction coefficient.
A Novel ZrO2 Ceramic Suspension for Ceramic Stereolithography
Authors: Han Zhuoqun , Wang Zaiyi , Liu Shihao , Wang Yingying , Zhou Yuanyuan , Li Ling , Liu Futian 
Published: November 2019

Abstract
Stereolithography have been widely applied in multiple fields. In this paper, we developed a highly filled, low viscosity stereolithography-based zirconia suspension, and successfully used to fabricate a complex shaped zirconia parts by DLP process. After debinding and sintering, the sintered bodies showed significant shrinkage, with the shrinkage between 27.28% and 29.64%.XRD, SEM and other methods were used to test the composition, microstructure and flexural strength. The XRD pattern shows that the crystalline phase of the part is the t-ZrO2 phase, while SEM characterization revealed that the sintered bodies were composed of submicron-grade grains. The relative density measured by the Archimedes’ water displacement method was 96.59%.Additionally, the measured maximum flexural strength was 650MPa.These values are close to the structural properties of common zirconia ceramics prepared by conventional approaches. Hence, a novel DLP-stereolithography-based ZrO2 suspension for the fabrication of complex and dense zirconia ceramic parts has been proposed in this work.
Study on Diffusive Reaction Between C-Si System and Mo Metal
Authors: Li C Q , Liu B L , Zhao C X , Feng X Y 
Published: November 2019

Abstract
Diffusive reaction layer on Mo metal covered by C powder (Si powder or SiC powder, i.e. C-Si system) and heat treated in vacuum ranging from 600°C to 1600°C for 2 h was investigated. Microstructure of interfacial reaction layer between C-Si system/Mo metal were characterized by XRD, SEM, and mechanical properties were compared between reaction layer based on Mo and Mo. The results show: after Si diffusing into Mo, Mo3Si phase appears after heat treatment higher than 1000°C, Mo5Si3 phase forms at 1400°C, even MoSi2 phase appears; after C diffusing into Mo, Mo2C phase appears firstly, then MoC forms at 1400°C; after SiC diffusing into Mo, Mo2C appears first, Mo3Si then forms at 1200°C, Mo5Si3(Mo2C and Mo5Si3C) mutiphase coexist on Mo surface after heat treatment high than 1400°C. Tensile and specific elongation of C-Si system/Mo vary little, but Vickers hardness of Mo diffused by C or Si comparing with Mo enhance distinctly.