bluuebunny/crossref_metadata_2025_split huggingface dataset:
The importance of ecotonic habitats in the spatial organization of the Late Pleistocene ecosystems of Yakutia
Authors: Protopopov A , Protopopova V , Neizvestnykh A 
Published: November 2019

Abstract
The mosaic of the existing vegetation cover of Yakutia in the Late Pleistocene is due to a combination of arid climate, as well as because of permafrost spreading and frequent fires. The combination of these factors creates necessary conditions for the formation of ecotone natural systems represented by dissipative plant communities. Sparse plant communities are characterized by the absence or weak expression of phytocenotic bonds. Their formation occurs stochastically under the absolute influence of external factors and is genetically entirely dependent on the surrounding vegetation, which acts as a donor of patient and ruderal species. Such processes were characteristic of the Late Pleistocene ecosystems of the Northern Hemisphere. A low productivity of such biotopes did not allow them to act as the main pastures for the representatives of the mammoth megafauna, apart from the saiga and bighorn sheep, but contributed to the increase in the biodiversity of the late Pleistocene ecosystems.
Assessing the ecological and economic state of agricultural land in the border areas of the Altai Krai
Authors: Baykalova TV 
Published: November 2019

Abstract
The article discusses the method of integrated assessment of ecological and economic state of agricultural land territory of the Mikhailovsky District of the Altai Krai. The joint analysis of the results of remote probing data processing, cadastral information and statistical reporting allowed us to carry out an areal assessment of lands classified according to different degrees of anthropogenic transformation. The characteristics of the areas exposed to anthropogenic influences were identified, which allowed us to isolate land with a special regime of use and adjust the ecological and economic state towards a balanced and sustainable development.
Socio-economic patterns of development planning in rural areas and targets of land management in industrial regions
Authors: Orlova A , Trapeznikova I , Tschelihina I 
Published: November 2019

Abstract
The article is devoted to the analysis of the influence the coal-mining industry has on the development of rural territories, as well as identifies the tasks of land management of industrial territories. The paper proposed directions for developing programs for cross-border cooperation in the framework of resettlement of those residents living in the areas undermined by mining.
Modern computer technologies in Biology: a scientific depository of phytodiversity of the transboundary territory of the Altai highland country
Authors: Vaganov A 
Published: November 2019

Abstract
In the modern period of biodiversity development, when studying the territory of the mountainous countries of the world, the active influence of such trends as genomics and digitalization is noted. Within Russia, Kazakhstan, Mongolia and China, the Altai highland country (AHC) is the highest uplift of North Asia, its biodiversity level is three times richer than it is in the West Siberian Plain. The collected material in the herbarium collections of the Altai State University (ASU, Barnaul) is more than 450 thousand herbarium leaves (ALTB Herbarium), and it is the biological repository of unique genetic material on AHC, along with other large depositories of the world (herbariums, zoological collections, etc.). The concerted actions of many countries of the world have already allowed to aggregate large data on the biodiversity of many mountain countries in order to ensure the sustainable development of these unique natural complexes. During our project, ASU scientists have developed a scientific depository with the possibility of integrating bio data into the Global Biodiversity Information Fund (GBIF). Today, data from ASU and other GBIF operators allow digital resources to be integrated across the whole spectrum of living organisms in the AHC, from genes to ecosystems. They allow linking them to issues important to science and society using GIS tools. Also, in this study, we produced a modern botanical and geographical zoning of the territory of the AHC, using open GIS systems (GeoJSON).
Accumulation of heavy metals with the lichen thalli of Cladonia rangiferina L. at the roadside phytocenoses of the West Siberian Subarctic
Authors: Popova E 
Published: November 2019

Abstract
The article reflects the results of a comparative analysis of the content and accumulation of heavy metals such as chromium, lead, nickel, zinc in the thalli of Cladonia rangiferina L. in the anthropogenic phytocenoses of the West Siberian Subarctic, Russia. The next series of accumulations of heavy metals in descending their concentrations in soils is Zn> Pb> Cr> Ni. Analysis of the results showed that among the factors affecting the accumulation of elements, the most significant wa the distance from the highway. The content of most elements is significantly (p <0.05) related. Cladonia rangiferina L. accumulates heavy metals depending on the location of the sampling point relative to the source of pollution. The coefficient of biological absorption, as well as the biogeochemical activity of the species, varies in different areas but has the greatest value in areas close to the source of anthropogenic load.
Methods of enrichment of the qualitative composition of a beef with polyunsaturated fatty acids in ecologically unstable agrarian territories
Authors: Shlykov S , Omarov R , Takhumova O 
Published: November 2019

Abstract
Beef is a natural carrier of beneficial n-3 PUFA (eicosapentaenoic acid (EPA, C20: 5n-3) and docosahexaenoic acid (DHA, C22: 6n-3), it is also an important source of healthy fats for human. The plant-based feeding strategies can be considered as the most appropriate and sustainable approach to increasing the content of n-3 PUFAs in beef. Taking into account the requirements for creating the pastures with high yields, productive longevity, a rapid achievement of pasture ripeness, resistance to grazing and trampling, as well as a high content of unsaturated fatty acids, a total of 3 types of herbs are selected: oat-grass + perennial sorghum + leymus. The plants were grown on the territory of the experimental pilot farm with a cut every 6 weeks and an annual fertilizer at the rate of 250 kg N per 1 hectare for 3 years. The collection of herbal material for the analysis of fatty acids was carried out in June and September 2014, 2015, and 2016. Our microscopic data showed that 2 hours after feeding on fresh grass, the protozoa had a significantly larger number of intracellular chloroplasts, which remained high and 6 hours after feeding. Therefore, data on fatty acids were correlated with the content of intraprotozoal chloroplast. These data illustrate that the absorption by protozoa of mainly plant chloroplasts occurs rapidly. More than that, the intracellular level of chloroplasts is maintained for at least 6 hours. Thus, the protozoa quickly become the main reservoir of chloroplasts and useful sources of PUFAs.
Movement modes of a fruit during vibration harvesting
Authors: Fedorenko I Ya 
Published: November 2019

Abstract
The article describes the movement of the fruit as a mathematical pendulum during branch vibrations. A non-linear numerical mathematical model was obtained. The article stated the presence of the fruit’s complex movements, including non-sinusoidal oscillations, oscillations-beats, rotational modes, as well as oscillations that have a stochastic appearance. Subresonances are detected at operating frequencies ω≈ pω0 (p=2,3,4,5…); at the same time, the fruit oscillates with almost its own frequency ω0
. It is established that the maximum efforts in the stem necessary for its destruction appear at a subharmonic resonance with the frequency ω≈ 3ω0
. This mode is recommended as a working one for garden vibration installations.
The environmental monitoring and management of urban greenery using GIS technology
Authors: Trubina L , Nikolaeva O , Mullayarova P 
Published: November 2019

Abstract
The main provisions of using GIS technologies for the environmental monitoring of urban green spaces (UGS) are described. The main factors of anthropogenic negative impact on the UGS are characterized. The paper considers the necessity of using modern methods of the Earth remote sensing and geospatial mapping for the inventory, assessment, and monitoring of environmental conditions of UGS. The principles of geoinformation modeling of UGS are characterized. The definition of UGS geospatial model is given, the tasks solved with its help are listed, the considered parameters of UGS are provided by the authors. The main stages of UGS geospatial modeling are described. A fragment of digital greening plan of Novosibirsk is presented. The paper concludes about the importance of geospatial modeling and mapping for the effective organization of environmental monitoring of UGS.
Changes in the content of low-molecular antioxidants and carbohydrates in pinus silvestris, rosa acicularis, ledum palustre in the context of the transition to winter dormancy in Yakutia
Authors: Kuzmina S , Soloveva M 
Published: November 2019

Abstract
The accumulation of low-molecular antioxidants and carbohydrates in three wintering plants of Yakutia in the summer-autumn period (July, August, September) was studied. Determining the content of the sum of low-molecular antioxidants (LMAO), the sum of flavonoids, ascorbic acid, and the sum of carbohydrates was conducted spectrofotometrically in the needles of pinus silvestris L. and annual shoots of ledum palustre L., rosa acicularis Lindl. The research shows that in general a decrease of temperature (a transition from summer months to autumn months) increases the content of LMAO in the three examined plants. The study also shows that an increase of the LMAO amount in the content descends to a greater extent due to the accumulation of ascorbic acid. In the dynamics of accumulation of flavonoids during the studied period, the maximum was noticed in August and followed by a decline in September. In the dynamics of the content of carbohydrates (reducing sugars), as well as the LMAO, was revealed a gradual increase in the period from July to September. The wide fluctuations in the content of the sum of LMAO, ascorbic acid, and flavonoids with decreasing temperature were found in the rosa acicularis Lindl, as well as in the sugars in the needles of pinus silvestris L. Thus, the revealed dynamics of accumulation of LMAO in wintering plants (fraction of flavonoids, ascorbic acid) in the period of preparation for the transition to winter dormancy did not show the presence of an explicit dependence on the accumulation of the main cryoprotectants of plants, i.e. carbohydrates.
Prospects for using the method of separation freezing for whey processing
Authors: Korotkiy I , Korotkay E , Neverov E 
Published: November 2019

Abstract
The use of cryoconcentration allows one to preserve the biological value and organoleptic properties of food products. This paper presents the results of studies on the concentration of whey by separation freezing. General patterns of separation freezing of whey in a capacitive crystallizer, the influence of the rate of ice formation, and the mass fraction of dry substances on the formed amount of whey protein concentrate are analyzed. The chemical composition of the initial serum and the resulting concentrates are determined. The mass fraction of protein in whey protein concentrate was 92% of the total dry matter. In the lactose concentrate, the dry matter content was 62.5%, the amount of pure lactose – 55.8 g/100 g concentrate.
Innovative beverage production technologies based on Amaranth biomass
Authors: Pivovarov V F , Gins M S , Gins V K 
Published: November 2019

AbstractThe paper presents research results aimed at finding plant raw materials, food biologically active components and reviews the possibility of their organic interaction to a form nutrient phytocomplex to create functional beverages. Using the principles of food combinatorics, we formulate the criteria of safety and usefulness of extracts, the formulation of health drinks using edible red-violet dye enriched with antioxidants from leaves and seeds of the amaranth Valentina variety. The biochemical and mineral composition of the created drink is studied.
Prerequisites for implementing the principles and tools of “green” economy in the Altai Republic
Authors: Ischuk L , Kuttubaeva T , Shvakova O 
Published: November 2019

Abstract
The study aims to identify the prerequisites and features of the implementation of the principles and tools of a “green” economy in the Altai Republic, one of the constituent entities of the Russian Federation. The paper suggests a number of approaches to the formation of the main stages in the implementation of the principles and tools of a “green” economy in a region. The authors also systematize the key prerequisites necessary for introducing the principles and tools of a “green” economy in the Altai Republic. The study presented in this paper will contribute to the development of priority “green” sectors in the economy of the Altai Republic.
Export of dairy products of the Altai Region: opportunities, prospects, and problems
Authors: Belyaev V , Butakova M , Goryaninskaya O 
Published: November 2019

Abstract
The article is devoted to the study of the export potential of dairy products of the Altai region. The factors that determine the possibility of expanding the presence of enterprises in the markets of the near and far abroad are identified and carefully analyzed in the paper.
The development of the agro-industrial complex of transboundary regions within the territory of Greater Altai
Authors: Permyakova E , Svistula I , Sycheva I 
Published: November 2019

Abstract
In this article, the subject of the research is the prospects of integration relations in the border region of Russia based on the concept of polarized development of the territories. In particular, we focus on the Altai Krai with the adjacent territories of the Republic of Kazakhstan. Our analysis of the existing prerequisites and the current state of the integration processes, as well as the specifics of the development of the regions, shows the possibility of using the agriculture sector as a propulsion industry. More than that, an algorithm for creating a cross-border development axis was proposed.
Feeding capacity and meat productivity of sheep of different breeds in the Republic of Buryatia
Authors: Biltuev S , Achituev V , Zhamyanov B 
Published: November 2019

Abstract
In this article, we studied the feeding and meat productivity of young coarse sheep (Buryat, Mongolian, Tuva, Edilbaev breeds) raised in 4 sheep farms of the Republic of Buryatia. In addition, the paper analyzes the economic efficiency of different breeds.
Culturological aspects of environmental policy in coal mining region
Authors: Kazakov F E , Markov V I , Minenko G N 
Published: November 2019

Abstract
The paper presents an analysis of the problem of environmental safety on the basis of the cultural vision of socio-ecological problems associated with the development of the coal industry in the Kuzbass region. It is emphasized that at the present time, there is a growing crisis in the relations between the man and nature, which is especially evident in such actively interacting with the natural environment regions as the Kuzbass. The article emphasize the statement that the coal industry of the Kuzbass plays such a significant role that its development appears to be socially and culturally important for the entire region. The culture of environmental safety in the coal mining industry affects life and health, in the literal sense of the word, every inhabitant of the region. Therefore, the formation of a high ecological culture should become a strategic priority of the regional policy covering all spheres of life and activity of the Kuzbass population. In this complicated situation, the choice of orientations and motivations in the formation of ecological consciousness, in ecological education acquires a huge role. However, in publications, only environmental education is most often emphasized, and sometimes norms of environmental ethics. The article proposes a broader approach based on the synthesis of rational impact, ethical and aesthetic motivation, as well as on involving young people in the practical volunteer movement in the sphere of ecology.
Study on Sinterability of Magnesium Aluminate Spinel Powders Prepared by Different Technologies
Authors: Yan Zhengguo , Wang Hong , Yu Jingkun 
Published: November 2019

Abstract
In this paper, the phase, structure and sinterability of magnesium aluminate spinel powders prepared by the chemical co-precipitation, low temperature combustion and solid phase reaction methods were studied. The results show that the uniform nanometer magnesium aluminate spinel powders are prepared from precursor via the chemical co-precipitation, calcined at 700°C. Using the low temperature combustion method, the agglomeration, complete crystalline nanometer magnesium aluminate spinel powders are prepared at the thermal explosion temperature of 400°C. For the magnesium aluminate spinel micrometre powders synthesized by the solid phase reaction method, the phases are mainly spinel with a little of periclase and corundum phase. The sinterability of powders prepared by chemical co-precipitation method is the best, but that of powders synthesized by low temperature combustion and solid phase reaction methods are poor.
Synthesis of Nano-Sized TiB2 and TiC Particles During Spark Plasma Sintering of Ball-Milled Ti-Cu Alloy + B(C) and Ti+Cu+B mixtures
Authors: Dudina Dina V. , Vidyuk Tomila M. , Korchagin Michail A. , Bulina Natalia V. , Datekyu Masanari , Kato Hidemi 
Published: November 2019

Abstract
Ti-B-Cu and Ti-C-Cu systems are interesting from the viewpoint of the development of ceramic particle-reinforced copper matrix composites. In this work, the phase and structural evolution upon the interaction of Ti33Cu67 and Ti25Cu75 alloys obtained by melt spinning with carbon or boron was studied. The reactions were carried out in the ball-milled mixtures subjected to Spark Plasma Sintering at 900 °C. The products of the reactions were composites containing TiC or TiB2 nanoparticles distributed in the copper matrix. The in-situ synthesized TiC and TiB2 nanoparticles were extremely fine (10-20 nm). The distribution pattern of the particles in the matrix was similar in the TiC-Cu and TiB2-Cu systems: composite regions were intermixed with copper regions free from the ceramic particles. It was shown that, when the Ti25Cu75 alloy was melted first by heating up to 900 °C and then forced to interact with carbon, TiC particles two orders of magnitude larger in size grew in the copper matrix.
Mechanical Properties of ZrO2 Honeycomb Sandwich Structures by 3D Printing
Authors: Gao Shuyue , Wang Cao , Zhao Zhe 
Published: November 2019

Abstract
Honeycomb sandwich structures were widely used in lightweight design. However, the difficulties with the fabrication process actually highly limit their practical usage, especially for ceramic materials. In this paper, 3 mol% yttria-stabilized ZrO2 (3Y-TZP) honeycomb sandwich structures with square and hexagonal cell were prepared successfully by using digital light processing (DLP) printing method. With a base material density of >6.02g/cm3, square/hexagonal honeycomb sandwich structures with structural density of 42.89%-66.24% were achieved by modifying unit cell wall thickness. It can be concluded that square honeycomb cell is preferred for getting higher bending strength at the same structural density.
Preparation of Mullite Fiber Reinforced Mullite Composites
Authors: Luan Qiang , Wei Qihong , Wang Hongsheng , He Juan , Shao Changtao , Gao Wenqiu , Liu Xiaojun , Shi Jiang , Su Tong 
Published: November 2019

Abstract
In this paper, mullite fiber reinforced mullite composites were prepared by stitched structural perform, the silica sol and alumina sol. In order to improve the compatibility of mullite fiber and silica sol matrix, interface coating was made by infiltration. The composites were prepared by the method of liquid phase infiltration, and the suitable ceramic heat treatment temperature was 750∼900°C though testing the damage of fiber strength after heat -treatment at different temperatures. Results showed that SiO2-Al2O3-ZrO2 interface coating could uniformly distribute on the surface of mullite fibers, and the appropriate interfacial bonding strength was obtained, which made a contribution to the high density mullite fiber reinforced mullite composite, whose density reached 1.75∼1.8g/cm3, tensile strength, bending strength and compressive strength reached 48.7MPa,65.4MPa and 82.7MPa, respectively. Dielectric constant was 3.2±0.1, Loss angle tangent was less than8×10-3.So mullite fiber reinforced mullite composites became a new generation of high temperature wave- transparent material.
Preparation of High-Performance 2D Si3N4f/SiBN Ceramic Matrix Composites by Precursor Infiltration Pyrolysis
Authors: Ma X , Liang YY , Qiu H P , Wang L , Liu S H 
Published: November 2019

Abstract
Continuous nitride fiber reinforced nitride matrix composite has been recognized as a promising microwave transparent radome material. The preparation of 2D silicon nitride fibers fabric reinforced silicon boronitride ceramic composites through polyborosilazane precursor infiltration pyrolysis routine is reported. The effects of thermal molding process on the properties and microstructure of theSi3N4f/SiBN composites were studied. The results show that the optimal molding pressure was 6 MPa due to the fine interfacial bonding between fiber and matrix. The Si3N4f/SiBN composites exhibits brittle fracture characteristic, the flexural strength and elastic modulus182.7 MPa and 51.1 GPa respectively, and the dielectric constant and dielectric loss are 4.12 and 8.82×10−3, respectively. The Si3N4f/SiBN composites get the best comprehensive performance.
Tension-Tension Fatigue of 2.5D-SiC/SiC Ceramic Matrix Composites at Elevated Temperatures
Authors: Zhang Bing-yu , Qiu Hai-peng , Tian Yuan , Chen Ming-wei , Chen Shan-hua 
Published: November 2019

Abstract
In order to investigate the influence of Tension-tension fatigue behavior of fiber reinforced ceramic-matrix composites, SiC/SiC composites with 2.5D fiber architecture were prepared via Precursor Infiltration and Pyrolysis (PIP) method. Tension-tension fatigue behavior of SiC/SiC composites was investigated in 1000°C and 1200°C, under fatigue stresses ranging from 70 to 120MPa at a frequency of 1.0 Hz, under oxidizing atmosphere. Fatigue life of SiC/SiC composites achieved 305, 984 cycles at 1200°C/70MPa, and 252, 988 cycles at 1200°C/108MPa, which were longer than test in 1000°C. Composite microstructure, as well as failure mechanism was investigated. The main reason that cause tension-tension fatigue failure of SiC/SiC composites are oxidation damage and stress damage. The microstructure of SiC/SiC composites demonstrated that the oxidation of interfaces and SiC fibers caused the failure of the composites. Under the load of alternating stress, the original voids and cracks in the material preparation process will be widened, and new cracks will be generated, for cracked SiC/SiC composites, oxygen in is especially serious at intermediate temperatures(∼800°C) where it can reach the SiC fiber before being sealed off by slow-glowing silica on the matrix crack surface, therefore, tension-tension fatigue life of SiC/SiC composites at 1000°C is lower than 1200°C.