bluuebunny/crossref_metadata_2025_split huggingface dataset:
Predicting Forest Land Cover Changesin Ba Be National Park of Vietnam
Authors: Kovyazin V F , Yu Romanchikov A , Thi Lan Anh Dang , Viet Hung Dang , Hung Vu Van 
Published: October 2020

Abstract
The study is conducted in Ba Be National Park which is the specially protected natural area (SPNA) of Vietnam. The paper analyzes changes and makes prediction of forest land cover in National Park. For these purposes satellite images (Landsat-5 and Landsat-8) acquired for the year of 1992, 2003 and 2019 were used. The Normalized Difference Vegetation Index (NDVI) was used to identify vegetation quality. Forest land cover was classified by 5 categories using maximum likelihood classifier algorithm. In order to detect and evaluate forest land cover change, supervised classification and image differencing method are applied. Then, Cellular Automata and Markov Chain model is employed predict of forest land cover in this area. The results of the study indicate that forest land cover change is being transformed in Ba Be National Park. According to our estimate, from 1992 to 2019, the area covered by woody vegetation increased by 1.1%. By 2035, the area of broad-leaved forests will increase by 9.7%, due to a decrease in areas of meadows and shrubs. The increase in forest cover protected areas is explained by the measures taken by the Vietnamese government to expand the forest area in the country.
Species composition dynamics of woody plants by the example of gardens and squares of the historical center of St. Petersburg
Authors: Melnichuk I , Trubacheva T , Tsymbal G , Dvatsatova T 
Published: October 2020

Abstract
Preserving the historical appearance of objects of landscape architecture is one of the most important tasks of protecting historical heritage. This task would not be feasible without studying the species composition and dynamics of the historical range of ornamental plants. A change in the species composition during the operation and restoration of such objects naturally leads to a serious change in their historical appearance. An analysis of the species composition of the vegetation in historical gardens, monitoring its state in harsh urban environment, and finding solutions to preserve the appearance of historical objects without violating historically defined features of the area are relevant today.
Modeling the dynamics of forest inventory indicators and building growth tables for sprout-origin oak stands of the Voronezh region by type of forest growing conditions
Authors: Musievsky A 
Published: October 2020

Abstract
In the Voronezh region, sprout-origin oak forests currently occupy an area of 94.7 thousand ha; these forests are a major element of the region’s forests after the wild fires of 2010. For evaluation of sprout-origin oak forests, forest managers use growth tables based on yield classes; those tables reflect neither forest growing conditions nor the diversity of the region’s sprout-origin oak forest stands and have an industrial focus. Based on the data of a mass forest inventory of more than 2,000 forest plots established in 11 types of forest growing conditions characterised by a variety of soil richness and moisture content, multidimensional equations have been derived and growth rate tables built for sprout-origin oak forests of the Voronezh region. The resulting growth tables demonstrate the dynamics of forest inventory indicators of the forest stands studied in the age range 10-160 years, basal area range 0.3-1.0 and the share of oak in the forest composition from 1 to 10 units. The tables allow evaluation of modal tree stands to be based on the measurements of average heights, diameters and areas of cross-sections and can be used in assessments of forest stands during forest inventory.
Assessment of the possibility of using wastes from pulp and paper industry in mechanical engineering
Authors: Rakovskaya E G , Zanko N G 
Published: October 2020

Abstract
The aim of this study was to assess the possibility of using wastes from pulp and paper industry as metal corrosion inhibitors. We studied protective properties of various systems, including the primers with rust modifiers developed on the basis of sulfite spent liquors and an upper coating layer of PF-115 enamel applied to a rusty surface. Using the gravimetric method and the method of polarization curves, we found that sulfite spent liquors inhibit steel corrosion in an acidic environment. We found that the P-2 rust modifier with an addition of lye + piperidine is the most effective inhibitor of steel rusting.
Physical and mechanical characteristics of a composite material made of birch wood hydrolyzed in the presence of hydrogen peroxide
Authors: Skurydin Yu G , Skuridina E M 
Published: October 2020

Abstract
The results of research of physical and mechanical characteristics of the plate composite material obtained from birch wood after its processing by the method of explosive autohydrolysis are shown. Before barothermal treatment, the wood was impregnated with an aqueous solution of hydrogen peroxide. The composite material is made from hydrolyzed wood pulp by hot pressing without adding binders. It was found that the properties of the composite material depend on the amount of hydrogen peroxide and the rigidity of the barothermal treatment conditions. Each of the modes of barothermal treatment corresponds to a certain value of the amount of hydrogen peroxide, when using which the density of the material reaches the maximum value. The dependence of the bending strength of a composite material obtained using different amounts of hydrogen peroxide is characterized by the presence of an extremum point. At this point, the strength value is the maximum. Further increase in the amount of hydrogen peroxide is accompanied by a deterioration in strength characteristics. It is suggested that the effect is a consequence of the dominance of destructive processes over the processes of intermolecular crosslinking when using a large amount of hydrogen peroxide.
Decision support system for energy wood production
Authors: Sokolov A 
Published: October 2020

AbstractAn approach to the application of modern information technologies and mathematical methods to solve the problem of energy woodproduction and logistics technologies selection is described in the article. The general statement of the problem, the methodology, methodsand models used are given.A decision support system for energy wood production can evaluate and compare various technological schemes for the harvesting and processing of woody biomass to energy woodand identify the most effective choice At the operational level, the approach allows to optimize the current plans for the harvesting, initial processing and transportation of the energy wood for available production capacities, taking into account the commercial roundwood production providing at the same time. Proposed approach isa practical tool for ensuring profitability and sustainable growth of the energy wood production, which, will stimulate the development of bioenergy in Russia.
System analysis of technological efficiency of forestry equipment module compositions
Authors: Svoykin F , Svoykin V , Bazarov S , Alexandrov V , Gasimov G 
Published: October 2020

Abstract
One of the perspective directions of increasing productivity in forestry production is the application of a modular approach to the formation of forestry machine systems. The modular approach makes it possible to form coherent and flexible technological processes, the technological efficiency of which depends on the extent to which the basis of system analysis is used in the formation of the forestry equipment fleet. The system analysis provides an analytical view of the effective capacity and performance at the functional time of the production process. The article explores the energy and production efficiency of several of the most typical compositions of formation of modules and submodules of timber harvesting operations: trees (feller-buncher module, energy module, skidding module), fuel wood (cutting module, energy module, chipper module, chipper-transporting module), logs with sub-sorting in the cutting areas (technological modules of cutting, delimbing and cut-to-length, energy module, skidding module), three-length (feller-buncher module, delimber module, energy module, skidding module).
Parameterization of the “alpha” type stirling engine mechanism for use in the timber industry
Authors: Tihonov E , Bazykin V , Mukhanov N , Gerasimova O , Soloviev S 
Published: October 2020

Abstract
This article discusses the parameterization of the crank-slider group of the Stirling engine to use in timber industry. Parametrization means involves into the equations a lot of variables: lengths of connecting rods of piston and displacer, positions of the axis of the cylinders The dependences of the piston and displacer movements are obtained for a free layout of the X-type Stirling engine mechanism. The boundary conditions of the lengths of the connecting rods are determined, taking into account the displacement of the cylinders’ axes in the plane perpendicular to the axis of the crankshaft. The resulting system of equations for the displacement of the piston from the displacement of the displacer will allow you to obtain a numerical model without modeling the crank and connecting rods, which will significantly reduce the resource intensity of numerical calculations. Further studies will aim to investigate the operation of the Stirling engine in compressor mode. This will allow determining the temperature difference between the cold and hot parts, which will allow you to indirectly evaluate the efficiency of operation in the engine mode. This study will eventually determine the optimal parameters of the designed engine, depending on the power and type of fuel used.
What is a possible response of forest biomass to changes in Eurasian air temperature and precipitation? A special case for the genus Betula spp
Authors: Usoltsev V , Kovyazin V , Tsepordey I , Chasovskikh V 
Published: October 2020

Abstract
Forest ecosystems, as sinks of atmospheric carbon, play an important role in reducing greenhouse gas release and preventing air temperatures from rising. Simultaneously, climate change entails changes in forest cover. We describe the change of Betula spp. stand biomass (tha-1) along the trans-Eurasian gradients of rainfall and temperature using the harvest data from 650 forest stands and climate data. Birch stand biomass increased with growing rainfall within the evaluated range from 200 to 800 mm per year, as well as with increasing the mean winter temperature from -40°C to + 10°C regardless of the rainfall level. The comparison of our results for birches with analogous results for coniferous species shows that forest responses to changes in climate indices are species-specific.
Modular system-based urban equipment design
Authors: Dembich N D , Streltsov A V , Zyrina M A , Marchenko A A 
Published: October 2020

Abstract
The article examines the problem of abundant squares of the administrative centers of town, typical for the Soviet period, and its solution by using the design of modular systems for creating urban equipment. The organization of a comfortable space under constantly changing conditions, the ability to quickly adapt to the needs of the consumer makes the development of modular architectural structures increasingly acute. The article considers basic principles of designing modular systems for organizing urban spaces for various public events. The main principles for optimizing the design of such modular systems have been formulated, such as multifunctionality and versatility, flexibility and adaptability, reusability, transportability and mobility. The main design features, units, parts and materials of the modular system are described. Based on the study of trends in the design of such systems, a conceptual project of modular open structures and universal pavilions for the city of Rubtsovsk, Altai Territory, is proposed. In addition to the module, a planning solution for the central square was proposed. The proposed modular system allows to improve the ergonomic and aesthetic properties of urban spaces, taking into account the climatic conditions of the region. The system has good adaptive characteristics, as it easily adapts to the needs of consumers. The cost-effective, flexible and growing structure of the modular system allows to quickly create a new image of the center of the settlement and contribute to its natural development. Design tools have become key elements in organizing the squares. The offered modular objects can form a single environment complex and perfectly decorate the shopping area. The created space can be used for theatrical events and festivals, since a stage, seats for spectators and recreational areas can be built from the elements of the modules.
A new approach to the design of street furniture in Krasnoyarsk
Authors: Zvonareva P P , Filipskaya I V , Yangulova I V 
Published: October 2020

Abstract
The article describes the trends in the field of small architectural forms and outdoor furniture in the public environment of Krasnoyarsk. The objects of study are outdoor furniture located in central and popular public places that shape the image of the urban environment. The article contains a study of street improvement in the city of Krasnoyarsk, which made it possible to assess the current state of furniture used in the city. The research methodology consists in conducting an Internet survey of respondents in the social network “VKontakte”. The survey showed the advantages and disadvantages of existing furniture objects according to ergonomic, artistic, aesthetic, environmental and economic criteria. The collected material made it possible to determine changes in the approach to the design of outdoor furniture for public urban spaces, made it clear the feasibility of an integrated solution for environmental objects. The article demonstrates the design concepts of products with progressive design and improved qualities. The authors-developers propose a modern approach to the organization of public spaces and the design of products, taking into account the anthropometric and physiological characteristics of the population. They explain the use of modern materials in terms of ergonomics and ecology, such as wood-polymer composites, plywood, modified wood. The recommendations of the expert in the person of the chief architect of the city, in the design and implementation of such objects, were taken into account. The results of the analysis have both theoretical and practical significance and will be used in the improvement of urban spaces within the framework of the “Comfortable Urban Environment” program in Krasnoyarsk.
Humanistic approach to environmental design: modern principles of organizing an accessible environment
Authors: Naidenova I V 
Published: October 2020

Abstract
The article deals with certain design trends that characterize the humanistic approach to environmental design, as well as ways of interaction between urban planners and designers within this approach. The theoretical basis of the article is the results of research by specialists in Russia and abroad of social urban planning conflicts that arise in the process of creating public spaces and their use by various groups of residents, including those with limited mobility.
The concept of sustainability management of the ecosystem of cities and small settlements
Authors: Sevryugina N , Apatenko A , Voitovich E , Kozhukhova N 
Published: October 2020

Abstract
Critical risks of ecosystem identity violation in the structure of landscape-recreational formation of the environment of cities and small settlements are identified. The dependence of the functional load of urban areas with industrial and civil facilities and the ability to restore the ecosystems of the adjacent small rivers and reservoirs is established. The necessity of modeling urban areas based on the “attraction zone” and “exclusion zone”, the verification of technical solutions for engineering systems of water protection complex harmonized with the natural environment is substantiated. A conceptual model for controlling of the risks of developing urban areas is proposed, that is focused on the mechanism for managing water body renovation programs taking into account risk factor analysis. A technique has been developed for restoring water bodies to the level of harmonized functioning by means of anticipatory diagnosis of risk-failures of the danger of environmental disruption. The introduction of digital indicator that determines the level of harmonized stability of functioning of engineering systems of water protection complex in the environment as an additional indicator of the economic and environmental activities of the regions will improve the accuracy of assessing environmental benefits and losses in planned projects.
Neural priming of adipose-derived stem cells by cell-imprinted substrates*
Authors: Ghazali Zahra Sadat , Eskandari Mahnaz , Bonakdar Shahin , Renaud Philippe , Mashinchian Omid , Shalileh Shahriar , Bonini Fabien , Uckay Ilker , Preynat-Seauve Olivier , Braschler Thomas 
Published: October 2020

AbstractCell-imprinting technology is a novel method for directing stem cell fate using substrates molded from target cells. Here, we fabricated and studied cell-imprinted substrates for neural priming in human adipose-derived stem cells in the absence of chemical cues. We molded polydimethylsiloxane silicone substrates on fixed differentiated neural progenitor cells (ReNcellTMVM). The ReNcellTMcell line consists of immortalized human neural progenitor cells that are capable to differentiate into neural cells. The fabricated cell-imprinted silicone substrates represent the geometrical micro- and nanotopology of the target cell morphology. During the molding procedure, no transfer of cellular proteins was detectable. In the first test with undifferentiated ReNcellTMVM cells, the cell-imprinted substrates could accelerate neural differentiation. With adipose-derived stem cells cultivated on the imprinted substrates, we observed modifications of cell morphology, shifting from spread to elongated shape. Both immunofluorescence and quantitative gene expression analysis showed upregulation of neural stem cell and early neuronal markers. Our study, for the first time, demonstrated the effectiveness of cell-imprinted substrates for neural priming of adipose-derived stem cells for regenerative medicine applications.
Magnetic molding of tumor spheroids: emerging model for cancer screening
Authors: Perez Jose E , Nagle Irène , Wilhelm Claire 
Published: October 2020

Abstract
Three-dimensional tissue culture, and particularly spheroid models, have recently been recognized as highly relevant in drug screening, toxicity assessment and tissue engineering due to their superior complexity and heterogeneity akin to the in vivo microenvironment. However, limitations in size control, shape reproducibility and long maturation times hinder their full applicability. Here, we report a spheroid formation technique based on the magnetic aggregation of cells with internalized magnetic nanoparticles. The method yields magnetic spheroids with high sphericity and allows fine-tuning the final spheroid diameter. Moreover, cohesive spheroids can be obtained in less than 24 h. We show the proof of concept of the method using the CT26 murine colon carcinoma cell line and how different cell proliferation and invasion potentials can be attained by varying the spheroid size. Additionally, we show how the spheroid maturation impacts cell invasion and doxorubicin penetrability, highlighting the importance of this parameter in drug screening and therapeutic applications. Finally, we demonstrate the capability of the method to allow the measurement of the surface tension of spheroids, a relevant output parameter in the context of cancer cell invasion and metastasis. The method can accommodate other cell lines able to be magnetically labeled, as we demonstrate using the U-87 MG human glioblastoma cell line, and shows promise in the therapeutic screening at early time points of tissue formation, as well as in studies of drug and nanoparticle tumor penetration.
Characterisation of Time-of-Flight (ToF) imaging system for application in monitoring deep inspiration breath-hold radiotherapy (DIBH-RT)
Authors: Abubakar Auwal , Zin Hafiz M 
Published: October 2020

Abstract
The purpose of this study is to develop a method for characterisation of time-of-flight (ToF) imaging system for application in deep inspiration breath-hold radiotherapy (DIBH-RT). The performance of an Argos 3D P330 ToF camera (Bluetechnix, Austria) was studied for patient surface monitoring during DIBH-RT using a phantom to simulate the intra-patient and inter-patient stability of the camera. Patient setup error was also simulated by positioning the phantom at predefined shift positions (2, 5 and 10 mm) from the isocentre. The localisation accuracy of the phantom was measured using ToF imaging system and repeated using CBCT imaging alone (CBCT) and simultaneously using ToF imaging during CBCT imaging (ToF-CBCT). The mean and SD of the setup errors obtained from each of the imaging methods were calculated. Student t-test was used to compare the mean setup errors. Correlation and Bland-Altman analysis were also performed. The intra-and inter-patient stability of the camera were within 0.31 mm and 0.74 mm, respectively. The localisation accuracy in terms of the mean ±SD of the measured setup errors were 0.34 ± 0.98 mm, 0.12 ± 0.34 mm, and −0.24 ± 1.42 mm for ToF, CBCT and ToF-CBCT imaging, respectively. A strong correlation was seen between the phantom position and the measured position using ToF (r = 0.96), CBCT (r = 0.99) as well as ToF-CBCT (r = 0.92) imaging. The limits of agreement from Bland Altman analysis between the phantom position and ToF, CBCT and ToF-CBCT measured positions were −1.52, 2.31 mm, −0.55, 0.78 mm; and −3.03, 2.55 mm, respectively. The sensor shows good stability and high accuracy comparable to similar sensors in the market. The method developed is useful for characterisation of an optical surface imaging system for application in monitoring DIBH-RT.
Modulational instability of the coupled waves between fast magnetosonic wave and slow Alfvén wave in the laser–plasma interaction
Authors: WANG Fangping , 王 芳平 , HAN Juanfang , DUAN Wenshan 
Published: October 2020

Abstract
By performing modulational instability analysis of the the nonlinear coupled dimensionless equations between a fast magnetosonic wave (FMSW) propagating obliquely with the magnetic field and a low-frequency slow Alfvén wave (SAW), we obtain the dispersion relation of the perturbation wave. The growth rate of the perturbation wave is obtained. It is found that the growth rate increases as background magnetic field increases, which is in agreement with that reported by Tiwary et al (2016 Phys. Plasmas
23 122307). A critical perturbation wave number is found. When the perturbation wave number is greater than or equal to the critical value, the growth rate is positive and it increases as the perturbation wave number increases, while the wave is stable. The maximum growth rate is reached when the frequency of the FMSW is half of the ion cyclotron frequency. The minimum growth rate is reached when the propagation direction of the perturbation wave is the same as that of the FMSW.