bluuebunny/crossref_metadata_2025_split huggingface dataset:
Platform-maker for preparing stumps for lowering below the surface of the soil with a variable boom of the hydraulic manipulator
Authors: Bartenev I M , Pozdnyakov E V , Druchinin D Yu 
Published: November 2019

Abstract
The technology of continuous lowering of stumps below the soil surface throughout the area of cutting is proposed to reduce the loads on the working bodies and frames of tillage tools and ensures complete mechanization of the reforestation process. A technological process has been developed to prepare stumps for lowering below the ground surface, which consists in creating platform-deepenings around stumps and cleaning their lateral surface from the soil within the depth of the platform. An aggregate for its implementation consisting of a tractor, a hydraulic manipulator, a screw rotator and a platform-maker with flexible working bodies has been designed. A mathematical model of the aggregate operation has been created. It enables to evaluate the efficiency of the manipulator placement of platform-maker and to determine the influence of the parameters of the hydraulic manipulator on the performance of the aggregate. The influences of the stump distribution density, the boom of the manipulator and the maximum angle of its rotation on the performance of the platform-maker have been determined. It was revealed that the productivity of the aggregate increases with an increase in the density of stump distribution on the cutting and the main geometrical parameters of the hydraulic manipulator.
Ecological functions of soils and criteria for their assessment
Authors: Kramareva T N , Tikhonova E N , Belik A V 
Published: November 2019

Abstract
In modern soil ecology, there is a need to develop a unified approach to assessing the ecological functions of the soil cover. Analysis of publications on this topic shows that this question is open. There are many criteria for evaluation individual soil properties. However, there is no general approach to assessing the eco-functions of the soil. The purpose of the work is the development of universal criteria for evaluation the ecological functions of soils. In this paper, it is proposed to use 2 criteria for assessing the ecological functions of the soil cover. These criteria are based on the fixation of changes in properties and their favorableness to the ecosystem. The proposed criteria were used to evaluate 5 biogeocenotic soil functions. This assessment approach is acceptable for agricultural soils.
Railroad ties produced from modified wood for cold climate regions
Authors: Medvedev I N , Parinov D A , Shakirova O I 
Published: November 2019

Abstract
Cold climate regions need railroad ties with improved operational characteristics during the construction and repair of railroad tracks. The aim of the study is to create a technology and equipment allowing the manufacture of such sleepers. Low-value soft hardwoods, oily antiseptic, and drying press chamber are needed for the production of sleepers with improved performance characteristics. Technological modes for producing sleepers with high performance characteristics of softwood have been tested using the installation which enables to combine technological operations - drying, treatment, and wood pressing. The resulting sleepers can be used in the Extreme North conditions. The half ties have been laid at Chistye Prudy metro station in Moscow, and the ties have been laid at Scherbenka station on the experimental ring of Russian Railways (JSCo «RZD»). The tests have been carried out for four years in underground railway system and for two years on the ring of Russian Railways. The test results have found that wear of modified sleepers and half ties is about 3 times less than wear of pine sleepers and the average service life of sleepers made of modified wood will be about 50 years. An experimental batch is currently being manufactured.
Agri-environmental role of protective forest plantations
Authors: Mikhina E , Taniykevich V , Mikhin V 
Published: November 2019

Abstract
Forest improvement systems in agricultural territories of the central forest-steppe of Russia are designed to ensure a stable ecological state of landscapes, reduce the risks of adverse natural phenomena and anthropogenic load. The area of preserved protective plantings is about 600 thousand hectares in the conditions of the Central Chernozem region. The effectiveness of such biological objects depends, first of all, on the structure of the transverse plantation profile. Linear plantations change the ecological conditions of plantation, the productivity of artificial phytocenoses during the growing season. Under the influence of forest belts, an increase in the moisture content of the surface air layer (by 1.8–6.9%), biological activity of the soil (by 3.6–5.3%), a decrease in the temperature regime of the surface layer of the soil (by 1.0–1.9 °C) and air (0.4-1.5 °C) takes place. Such changes contribute to an increase in the yield of winter wheat by 3.3-5.5 c/ha. The best in influencing the ecological indicators of the landscape are protective stands of the blown, open-blown and open structures, where the range of influence extends to 15-30 planting heights. The formation of protective plantings of optimal structures provide the most complete protection of agrolandscapes from negative natural phenomena, increase the ecological capacity and contributes to obtaining stable and maximum yields of agricultural crops.
Chemotypic structure of Pinus sylvestris population in Usmansky and Khrenovskoy pine forests
Authors: Tseplyaev A N 
Published: November 2019

Abstract
The main target of the paper is to study structure of main pine forest types in Usmansky and Khrenovskoy pine forests, their chemical composition of essential oil (EO) monoterpene fraction. This paper is on problems of Scots Pine (Pinus sylvestris) breeding and seed-growing in the forest-steppe European part. It is done for forest culture improvement, based on genetics and breeding. The characteristic of main components of pine-needles essential oil in free and controlled cross-breeding was investigated. The established peculiarities of monoterpene biosynthesis in pine-needless essential oil are genetically motivated. The long-term opportunity for essential oil composition usage as characteristics of Pinus sylvestris breeding on resistibility to diseases and pests was defined. The structures of main forest types in Usmansky and Khrenovskoy pine forests according to basic monometric and biochemical indices were studied. The data on composition, changeability and inheritance regularity of monoterpenes may be used for recommendations on creating of Pinus sylvestris seed base on genetic and breeding bases.
Environmental frameworks of sustainable development in the Russian Federation (on the example of the Voronezh region)
Authors: Kharchenko N , Moiseeva E , Prochorova N 
Published: November 2019

Abstract
Wildlife preservation and protection is a necessary condition for the implementation of sustainable development. It is a determining factor in the possibility of continued human existence as a species at the present stage of biosphere development. The reduction of natural ecosystems’ territories, and, as a result of this, the reduction of their biodiversity, negatively affects the quality of life of different regions and of humanity as a whole. One of the ways to optimize the environment, preserve natural ecosystems and improve the quality of human environment is creation of ecological frameworks of the regions. Shipov Forest, Tellerman Forest, Khopersky Reserve, Voronezh State Nature Reserve named after V.M. Peskov, a forest-green zone of the city of Voronezh (currently under construction) will be the main centers of the ecological framework of the Voronezh region. At the same time, there are 244 specially protected natural territories of regional and local subordination in the Voronezh region. They belong to different areas of protected territories, categories and profiles. When creating an ecological framework, these territories are included into ecological framework, thereby expanding its territory and strengthen its environment-forming functions.
Elaboration of a composition based on spent engine oil and wood flour for birch wood impregnation and railway sleepers production
Authors: Belchinskaya L I , Zhuzhukin K V , Dmitrenkov A I , Novikova L A , Khodosova N A 
Published: November 2019

Abstract
The “hot-cold baths” impregnation of birch wood samples by a number of oils (original engine oil, waste motor, spent transmission, spent corn and sunflower oils) were studied in order to choose a base for impregnating composition. Specimens of wood flour from coniferous and hardwood species, oak, birch and pine bark were used as fillers of impregnating compositions. Physical-chemical characteristics (absorbed amount of impregnated compound, water absorption, swelling in tangential and radial directions, wetting angle) of wood samples treated with impregnation compositions were determined and compared to the most common oil antiseptic ZHTK-2. A strong decrease of water absorption and swelling of wood samples was observed for birch wood samples impregnated composition on the base of spent engine oil. Use of softwood flour as a filler of impregnating composition caused stronger enhancing of wood hydrophobicity, mainly, due to abietic acid dissolution in spent engine oil. 1 w.% of softwood filler of the impregnating composition was found the optimum providing the wood shape and water stability. The developed composition is recommended for impregnation of birch wood to be used in railway sleepers production.
Analysis of wood energy Russian market
Authors: Vasilyev O I , Barikaeva N S , Akhmadeev B A , Moiseev N A 
Published: November 2019

Abstract
The paper presents an analysis of the wood-based energy market in Russian Federation. There are highlighted a number of problems with the types of Wood Energy Sources identification in Russian classification for production and consuption. According to statistics, domestic consumption of WES in Russia does not develop as rapidly as its exports. The paper considers studies of the WES market development examples in some European countries. It is formulated a set of problems including in the area of domestic consumption of Wood Energy Sources Russian market development. T Analyses based on dynamics of the production volumes, trading and prices of the Russian wood pellets and briquettes as the main spicies of Wood Energy Sources The export prices and trading on wood pellets were analyzed according incoterms. The export volume of wood pellets by destination countries in 2016-2018 is compared. The supply volume of wood pellets by various types of transport is analyzed. The main problems and premises for the Wood Energy Sources market development in the Russian Federation, based on the study results, are formulated, and facility development actions are proposed.
Floorings of Wooden Frame Buildings with Application of CLT-Panels
Authors: Tretyakov Nikolay 
Published: November 2019

Abstract
The aim of the study is to analyze the floor structures of a wooden frame building, made with the use of glued CLT - panels and the use of perspective wood material of their unidirectional veneer – LVL-bar, which has enhanced strength characteristics compared to ordinary wood. Four options for securing floor slabs were considered. Analysis of the stress-strain state (VAT) of the CLT-panel design with lamellae of LVL-beam is performed using the MSC Nastran finite element analysis application package. The CLT panel is approximated by four-node LAMINATE type layered elements that take into account all internal force factors: membrane, shear, transverse and flexural. At each node, the element has six degrees of freedom: three translational along each of the axes ox, oy, oz and three rotational with respect to the axes ox, oy, oz. Analysis of the results of the calculations made it possible to evaluate the most effective design solutions for floor slabs of frame buildings using CLT panels.
Quality Management of Building Materials and Building Productions Based on the Using of Real Estimates of Measurement Accuracy
Authors: Khayrullin Rustam 
Published: November 2019

Abstract
The most important direction of quality improvement in construction is to increase the accuracy of measurements of parameters of building products and construction products, as well as the parameters of the technological process of construction and of production of building materials. Currently used standard estimates of measurement accuracy provide guaranteed but underestimated accuracy estimates. Although in fact, with the correct measurement methods and the use of a posteriori information, it is possible to build more realistic estimates of accuracy. The accuracy of such estimates is several times higher than the accuracy of standard estimates. The article investigated the problem of increasing the accuracy of measurements through the use of a posteriori information. An example of the application of the Bayesian approach in the conditions of the possibility of obtaining additional information and its use in order to build effective estimates of measurement accuracy is presented. It is assumed that the measurement result is the sum of the actual value of the parameter being measured and the measurement error. For the case of a uniform distribution of the real value of the measured parameter and measurement error, explicit analytical formulas were obtained for the differential distribution function of the measurement result and the conditional distribution of the real value for a known measurement result. These analytical dependencies, obtained as a result of integrating fractional rational expressions, are composite functions, which in different parts of the argument are specified using different analytical formulas. The analysis of the obtained analytical dependencies. Using numerical integration, we plotted the dependence of the square of the standard deviation of the real value of the measured parameter on the observed value of the random variable. It is shown that in the case when the standard deviation of the measuring device is less than three times or more than the standard deviation of the actual value of the parameter, the use of a posteriori information allows us to construct more realistic estimates of accuracy. The accuracy of the measurements can be obtained several times higher. It is noted that in the case of normal and exponential distribution of the real value and measurement error, the use of a posteriori information does not lead to an increase in measurement accuracy. The results obtained can be applied in the development of measurement methods, in the development of methods for verification and calibration of measurement instruments.
Logistics Systems in Operational Reliability of Pipelines and their Risks
Authors: Borkovskaya Victoria , Korytova Yulia 
Published: November 2019

Abstract
The main issue of the study is the problem of reliable operation of pipelines and ensuring their stable operation by optimizing the operation of logistics systems. In the process of operation, the leading function of logistics to address organizational and technical issues is carried out by material and information flows. At the moment, due to the use of outdated methods of diagnosis and repair of pipelines, risks increase during the operation of logistics systems. There is a decrease in the efficiency of supply and material support due to the lack of optimization of logistics flows. The purpose of the study is to determine the role of logistics systems in the management of operational reliability of pipelines and to consider possible methods of their optimization and elimination of risks. The use of modern methods in the diagnosis and repair can significantly reduce economic costs, logistics risks, the environmental damage caused by the operation of pipelines. To minimize damage to the logistics system, it is necessary to use the latest technology in the operation of pipelines and modern methods to reduce the cost of logistical operations, which will have a direct impact on the quality of logistics systems.
Intercomparison of Building Dismantling Methods
Authors: Korol Elena , Gaydysheva Yuliya 
Published: November 2019

Abstract
The choice of the most suitable method can be based on various criteria, such as the dismantling period, production per 1 m3, noise exposure. Often it is quite difficult to determine the appropriate method of dismantling, taking into account the specification of the structure, its location, area wide, the complexity of the analysis of the building and other conditions. To make a decision on the choice of the most suitable method of dismantling, it is proposed to use the analytical hierarchical procedure of Saaty, based on a pairwise comparison of methods, and then determining the criteria for dismantling. This method of decision-making allows you to make decisions based on the specific conditions of dismantling and determine the proportion of each criterion for the most appropriate solution to the problem.
On Aspects of Using Gabion Structures for Urban Space Design
Authors: Katkov Ilya , Shabanova Anna , Karpova Veronika 
Published: November 2019

Abstract
This article deals with analysis of positive and negative aspects of using gabion structures in urban space. The impact of gabion structures on safety of the recreational feature, i.e. the pond Krugly near the shopping center “Pyramida” in the city of Samara has been assessed by applying two indicators – water quality and safety of recreants. Recommendations on the choice of technical solutions for the improvement of recreational areas near residential buildings have been given.
Influence of Frost Protective Layers on the Realisation of the Track Bed Structure
Authors: Sestakova Janka , Dobes Peter 
Published: November 2019

Abstract
The railway track is a structure built of structural elements and materials with different material and geometrical properties. The design, construction, management and operation of the structure are governed by the standardized requirements of the railway infrastructure manager. The priority aspect of long-term serviceability is the resistance of the rail grid and the track bed to the stress. In terms of the railway body, the load is represented by the traffic and non-traffic load. The paper analyses various reference types of the track bed, (designed and assessed according to currently valid standards) and design types (designed, assessed and tested within the research of the Department of Railway Engineering and Track Management of the University of Žilina). Based on the parameters of the material and constructive structure, a matrix of activities of time plans for building reference and design models is created. This matrix also enabled to develop visualizations of standard links among construction activities.
Improved Visibility – Solar Powered Road Markers on Polish Roads
Authors: Grabinski Sebastian 
Published: November 2019

Abstract
The article discusses safety of road users as well as traffic accidents and collisions between 2014 and 2017 in Poland and other European countries. The author proposes an alternative method of improving safety through increasing the visibility of road users. Alternative methods allow to use the latest technological solutions related to storing and using renewable energy in various weather conditions.
Constructed floating wetland with mooring system technology to improve water quality in Gedebage Reservoir, Bandung
Authors: Hidayat Y M , Herwindo W , Bachri S 
Published: November 2019

Abstract
Gedebage Reservoir is built as retention ponds, in the future it will be developed into an integrated religious tourism area, so that the quality of water reservoir must suitable for tourism. Constructed floating wetland with mooring system, besides being used as water quality improvement technology, it will also add aesthetic value. The purpose of this study was to identify the possibility of applying the constructed floating wetland in the Gedebage Reservoir area. This study uses secondary data to determine the design parameters and characteristics of water sources, design parameters are used for location recommendations, while the characteristics of water sources are to determine the accuracy of the technology used. The result shows that the placement of a floating wetland technology with mooring system in Gedebage reservoir has meets the requirements of design parameters than in a biological filter channel. The characteristics of the Gedebage Reservoir water source that have not met requirements consist of several parameters, namely: Ammonia, Chlorine, Mn, DO, Sulfide, Detergent, Oil and Fat, Cd, Pb, DO, BOD, COD, Fecal Coliform and Total Coliform. Whereas, based on the ratio of BOD5 / COD in the dry season that ranged from 0.25 indicating that the water had been toxin, so that it would disrupt the development of biofilms, so in addition to wetland, a pre-treatment was needed before entering the reservoir.
The comparative study of flood modelling with the unsteady and the steady flow on Ngotok river
Authors: Idfi G , Wahyono I D , Yulistyorini A , Khomsiati N L 
Published: November 2019

Abstract
The Flood modeling in a river is usually modeled with the one-dimensional flow. The Flood is one form of unsteady flow that can be simulated with the HEC-RAS program. The unsteady flow modeling results often occur error due to unstable program analysis. The stability of the model is influenced by the river channel, the slope of the river bed and the cross-sectional of the river. In flood forecasting required by maximum discharge data and maximum flood elevation, then the steady flow model is often used as an alternative to the calculation of flood forecasting. This study aims to compare the advantages and disadvantages of flood modeling with a steady flow and unsteady flow. The location of study in Ngotok River, Mojokerto Regency, Indonesia. Hydrological modeling uses HEC-HMS and hydraulic modeling uses HEC-RAS. The resulting modeling shows that the water elevation profile of the steady flow model has a higher than the unsteady flow model. The time required for the simulation of the unsteady flow model is longer than the steady flow model. The average water level elevation produced by the unsteady flow model is +27.17 m while the steady flow model is +29.62 m.
Modal parameters identification of light rail bridges
Authors: Zulkifli E , Widarda D R 
Published: November 2019

Abstract
One of important aspect in Structural Health Monitoring System (SHMS) is the initial condition of the structure. This paper studies the initial condition of light rail train (LRT) bridges before officially operated. There are four bridges to be evaluated, consists of three simple supported bridges and one continuous bridge. Data measurement was using tri-axial accelerometer EZDYN with a train-set as the dynamic loading source. The modal parameters are obtained by means of operating modal analysis (OMA) in time domain. Three methods are simulated, that are ARMA, ITD and SSI. The data processing applied shows that all three methods give satisfactory results that confirm each other, for both natural frequencies and vibration modes.