bluuebunny/crossref_metadata_2025_split huggingface dataset:
Distribution and frequency paraquat resistant populations of Eleusine indica on cornfield in Karo Regency
Authors: Sinuraya O , Purba E , Hasanuddin  
Published: April 2020

Abstract
Karo Regency as the largest corn production centre in North Sumatra Province is at risk of having a high frequency of paraquat-resistant populations of Eleusine indica, this is due to the continuous use of paraquat for a long time. This study aims to determine the distribution and frequency paraquat-resistant population of E. indica on cornfield in Karo Regency. Sampling was conducted in March - July 2019. Weed seed samples were taken from six Sub-districts that have the largest corn production in Karo Regency. Resistance tests were conducted in August - September 2019 at the weed resistance research laboratory in the Faculty of Agriculture, Universitas Sumatera Utara. Weed seeds from 72 suspected paraquat-resistant populations and 1 paraquat-sensitive population were planted each with 10 plants / pots and arranged using a Randomized Block Design in four replications. The paraquat dose used is the recommended dose of 600 g.b.a./ha. The application is carried out using an electric knapsack sprayer with teejetnozle and a spray volume of 320 L per hectare. The results of this study indicate that there are 70 populations (97.2%) of the paraquat-resistant category, 1 sample (1.4%) of the paraquat-resistant developing category and 1 population (1.4%) of the paraquat-sensitive category.
Man-Made Hazards Environmental Management in the Sakha Republic (Yakutia)
Authors: Prohorov V A , Lukina N A 
Published: April 2020

Abstract
It is shown that the technological safety ensuring is in demand in the modern world, the person and society interests protection is impossible without the environment preservation. The safety problem of socio-natural-technogenic systems is relevant in the territory of the Republic of Sakha (Yakutia). The technological hazards specificity of the region’s territory is determined by the extreme climate characteristics. Probable man-made hazards on the republic territory are shown and the main indicators of water pollution are given. Common technogenic dangerous objects on the Republic territory are established: production associated with the extraction, transportation, oil and petroleum products storage and tailing dumps. Social components determined by the traditional environmental management violation and the way of indigenous peoples’ life are not sufficiently taken into account in the damages assessment. The basic principles of environmental policy are given.
Control of the Vessel Course using of PID-Regulator under Parametric Uncertainty
Authors: Grinyak V M , Pashin S S 
Published: April 2020

Abstract
The work is devoted to the problem of ensuring the safe movement of vessels in maritime waters. A special place within the framework of this problem is occupied by the task of planning the shipping route: the trajectory of the vessel’s movement in the local sea waters area and shipping route from the port of sailing out to the port of destination. The purpose of planning the vessel’s trajectory in the local sea waters area is to ensure navigation safety in the conditions of collective movement and geographical features of the waters area. In the present work the task of controlling the vessel when she is proceeding by the program trajectory is considered. The article notes that the inaccuracy of a preconceived ideas about the model of vessel movement can significantly affect the behavior of the vessel in the control processing, accuracy of control may become insufficient in circumstances of high traffic intensity, which can lead to dangerous approach of vessels. To solve this problem, it is proposed to include in the ship’s control system the PID - regulator operating on a deviation from the course, integral from this deviation and its derivative, and also, the function of identifying the model of motion of an object by the method of speed gradient, realizing a closed system. As a model of the vessel’s movement adopted well known model Nomoto of second order. The article is accompanied by the results of modeling the proposed ship control system. It is shown that it is able to operates within a single process in real time and respond adequately to changes of motion model parameters.
Methodology of New Ideas Formation in Water Resources Utilization Technology
Authors: Khetsuriani E D , Larin D C , Khetsuriani T E 
Published: April 2020

Abstract
Modern societal development, both at the level of the global system “Nature-Society-Person” and at the level of local watershed geosystems, is characterized by the increasing relevance of all aspects of the society interaction with multifaceted types of economic activity and Nature, which are expressed in the form of 10 major problems, of which the first three are the most important - Energy, Water and Food , as the solution of the remaining 7 problems (ecology, poverty, terrorism and war, diseases, education, population demography and democracy) is impossible without the solution of the first three [1, 3]. The systemic causal relationship between the problems of Energy, Water and Food causes a "dominant problem" over these problems, both at the planetary level of the Earth’s biosphere and at the level of local watershed geosystems, for example, the Kuban river, the Terek river, the Lower Don river and others. within the spatial limits of which almost all types of economic and other activities are conducted, including the water resources utilization in the agricultural industry.
Evaluation Methodology and Analysis of the Infrastructure of the Business Systems in the Russian Federation
Authors: Ostovskaya A A 
Published: April 2020

Abstract
The competitiveness of the national economy is defined by the development of entrepreneurship, small and medium-sized enterprises in particular. It additionally requires friendly environment, simple and clear-cut organization procedures and availability of the well-developed infrastructure in the regions. The institutional infrastructure of the business networks is a key factor in building an efficient system of tools of business stimulation and better adaptation of small and medium-sized enterprises. The article studies the practicality of the infrastructural modernization in the regional businesses and focuses on the methodology of its development within the theory of regionalism. It deals with the range of theoretical issues characteristic of the approach in the framework of the economic science in Russia. The study presents a method of evaluating the infrastructure of business systems and defines the level of infrastructural development of the Russian regions
Ecological and Economic Evaluation of the Disturbed Lands Recultivation Projects in the Republic of Crimea
Authors: Ergina E I , Ergin S M , Sidorenko I Ya 
Published: April 2020

Abstract
The development of the extractive industry leads to the increase in the number of quarries on the territory of the Crimean peninsula and, as a consequence, to the increase of the area occupied by the disturbed lands requiring recultivation. The reclamation of such land plots on the basis of creating the necessary conditions for the development of regenerative successions of zonal vegetation on them and ultimately the formation of soils is much cheaper for land users. Therefore, studies of the rates of soil formation, including using the methods of mathematical modeling of the processes of formation of the humus horizon of the soil over time, have become relevant. Calculation of the economic efficiency of reclamation of the disturbed lands has been carried out for the Alexandrovskoye saw- limestone field in the Chernomorsky region of the Republic of Crimea. The assessment has been carried out within the framework of two models: mining engineering with further self-overgrowing of the reclaimed land plots under pastures and integrational, including both mining engineering and biological stages with possible carrying out a number of agrotechnical works on further improvement of pastures, based on the calculation of the cost-effectiveness indicator. This indicator is based on the selection of the best options for remediation work at the minimum value of the integral operational and investment costs and takes into account the effect of the time factor. The calculation results have shown that, in terms of cost-effectiveness, it is more rational to use the mining engineering model with further self-overgrowing of the sites to be reclaimed when it comes to the reclaiming of the disturbed lands of the Alexandrovskoye quarry.
Technogenesis and Geochemical Features of the Crimean Soils and Landscapes
Authors: Pasynkov A A , Ergina E I , Zhuk V O 
Published: April 2020

Abstract
The paper presents the results of field geo-environmental monitoring studies of the Crimean peninsula’s territory. The basis of the work lies in the results of the study of soil and lake bottom sediments conducted during the implementation of different-scale ecological, geochemical and hydrological studies in the period from 2003 to 2013. A large amount of factual material on the distribution of chemical elements in the soils and landscapes of the Crimea made it possible to analyze the current geochemical and ecological status of the territory for the first time. It is noted that technogenic pollution of soils and landscapes has increased in the Crimean Peninsula in recent years. Mining and agrogenic load on the soil are recognized as the most large-scale processes that transforms the peninsula’s landscapes.
Innovative Development of Subsoil Mining Complexes of Russia
Authors: Lebedev Yu V , Kokarev K V 
Published: April 2020

Abstract
In the consideration the facilities of the mining complex was approached using the interdisciplinary method based on accounting of the ecological, social, economic, technological factors. The «system of subsoil use» is considered as an aggregate developed subsoil areas and industrial production. They are united by the flow of energy, substance and information between themselves, with civil society and with natural environment. Considered two conditions for innovative development of mining complexes: formation of long-term motivation in subjects of economic activities and creation of long-term loan mechanisms. The main directions of innovative development of mining and industrial complexes are substantiated: the creation of new technologies for the extraction of minerals, advancing the world level in a number of studies, the development of public administration, the use of technogenic deposits and the restoration of damaged ecosystems, the digitization of subsoil processes, and the involvement of society in the organization of subsoil use.
Period of Blooming in the Plant Community as an Indicator of Human Impact (by Example of Komsomolsk-on-Amur)
Authors: Babkina S V , Safonova E V , Sheenko P S 
Published: April 2020

Abstract
Currently, phenology is actively used to display and study the effects of climate factors and human impacts on ecosystems. Researchers described phenological responses of plants to climatic and anthropogenic changes, as well as phenological features of alien species, as a factor determining the success of the invasion. In Komsomolsk-on-Amur (Khabarovsk region, The Far East of Russia) a database on the blooming of plants for the city residential areas and Silinsky forest was compiled on the basis of photo archive of plants. Silinsky forest is undisturbed woodland in the city. The flora of the Silinsky forest consists of 378 species of blooming plants, of which 329 plants are native species, 49 ones are alien species. The flowering plants flora of the residential areas of Komsomolsk-on-Amur consists of 518 species: 264 species are native, 254 ones are alien. Blooming was counted for decades. Comparative assessment of blooming periods was conducted for native and alien species taking into account their range and eco-phytocenotic preferences. There is a smoothing of typical features for the region in the more disturbed residential area. The alien fraction contributes to this. The June peak of blooming is disappearing, there is a shift of blooming to the end of summer. Thus, the phenological characteristics of the community can be used as an indicator of anthropogenic pressures.
The Metal Fatigue Failure Model under a Low- and High-Cycle Loading and Using the Temperature Effect
Authors: Oganyan E S , Volokhov G M , Gasyuk A S 
Published: April 2020

Abstract
The models of damages accumulation in machinery structural components in the process of their complex loading in a high- and low-cycle area are considered. It is established that the damage accumulation process under these conditions is not subjected to the linear hypothesis. The necessity to take into account the simultaneous action of a complex of operational loads of different levels with the formation of a generalized block of forces is shown. The description of manufacturing some typical welded structures of components classified by the stress concentration level in a given loading pattern and their influence on endurance limits of such components is provided. The study results of fatigue damage accumulation processes according to temperature analogs of material endurance limits are presented. Equations approximating their S-N curves are obtained.
The Technology of Thermochemical Processing of Wastes Enterprises of the Woodworking Industry in the Regulation of Environmental Pressure
Authors: Khasanshin R R , Safin R R , Valeev I A 
Published: April 2020

Abstract
The development of industry is always accompanied by an increase in the negative impact on nature. A variety of waste generated at the production stage for a long time is stored and accumulated. This is especially true for organic waste, the amount of which is steadily increasing as the industry develops. In this regard, the issue of their processing is becoming increasingly important. Currently, one of the optimal types of organic mass processing is pyrolysis. However, in most cases, thermochemical processing technologies, used at enterprises, are not capable of meeting modern requirements for energy consumption and environmental friendliness. The article investigates the high pressure effect on the process of thermochemical treatment of wood waste. As a result of processing the obtained data, the dependences of the duration of the process of thermal decomposition of wood and the output of charcoal on the pressure in the chamber, ambient temperature, size and humidity of the pyrolized wood raw material were determined. It has been established that with an increase in the process pressure, the duration of the process of thermochemical processing of wood waste decreases, and the output of coal increases.
Improvement of Constructions and Methodological Approaches in the Development of Two-Stage Gas Purification Devices Equipped with Parallel Flat Filter Cartridges Interconnected within One Vessel
Authors: Usachev A P , Biriukov A V , Soloviev V A 
Published: April 2020

Abstract
The article presents improved approaches to increase throughput capacity of a two-stage natural gas purification device by placing a row of parallel flat filter cartridges interconnected within one vessel with the inlet and outlet nozzles attached from different sides of the filter at the same height. The use of two-stage filters with the inlet and outlet nozzles attached from different sides of the filter allows to reduce the distance between adjacent gas reduction lines. Placing of the inlet and outlet nozzles at the same height decreases the height of the wall constructions required to place the reduction lines. The use of proposed gas purification devices allows the following: to increase the purification device capacity due to compact placing of the filtering surface in a unit volume of its vessel; to perform flexible increase in the filtering surface of the purification device due to the possibility of placing additional purification units into the device without reconstructing gas reduction cabinet; to reduce the cost of purification by increasing the total area of filtering cartridges and, consequently, reducing the number of cleaning operations; to reduce the area of the place allocated for purification device, as well as to reduce heating costs. We obtained the dependence regarding definition of specific integral area of parallel pleated filter cartridges, taking into account the filtering surface shape and geometrical parameters of the pleats. As a result, we came up with a formula to evaluate the efficiency of placing filtering surface within the vessel of the proposed purification device with parallel filtering cartridges, as compared with the most advanced analogue with a single cylindrical filter cartridge.
Improving the Safety of Drying and Packaging Section of Isoprene Rubbers
Authors: Kurbangaleeva M H , Rizvanova E R , Pergushova L R 
Published: April 2020

Abstract
The analysis of main hazards at the section of isolation and drying of isoprene rubber is carried out. Incident causal factors and scenario analysis were studied and existing measures to ensure industrial safety are reviewed.
The main initiating event of an emergency in the workshop is loss of containment followed by release of significant quantities of hazardous substances with subsequent negative development of the accident.
The measures aimed at reducing the risk of an accident at the facility are: reducing the likelihood of equipment depressurization; minimizing the amount of hazardous substances entering the accident site; localization of the accident site; limitation of time spent by personnel in hazardous areas.
In the event of a power outage, it is proposed to install a diesel generator set of the TSS AD-800S-T400-PM5 brand. This measure allows minimizing the amount of hazardous substances entering the accident site, which leads to a significant decrease in environmental and economic damage from the accident.
Increasing the Efficiency of Underground Short-Hole Drilling by Combined Action of Axial and Moment Pulses
Authors: Grinko D A , Grinko A A 
Published: April 2020

Abstract
The article substantiates the possibility of improving the efficiency of short-hole drilling by combining axial and moment pulses with a rotating drill cutter. The control of regime parameters of drilling, including parameters of axial and moment pulses, in order to establish rational ratios of parameters can be carried out by boring machines of the mechatronic class directly in the process of short-hole drilling. A methodology has been developed for conducting experimental studies in accordance with which experiments have been carried out and dependencies obtained that reflect the effect of the combined effect of axial and moment pulses on the penetration rate. The stress-strain state of the rock in the undercutter zone of the short-hole with the combined effect of axial and momentum pulses on the drilling tool is investigated using the method of finite element analysis.
The Technology of Information Modeling in the Arrangement of Cluster Sites of Oil and Gas Fields
Authors: Bobrova T V , Kodentseva J V , Perfilyev M S 
Published: April 2020

Abstract
The article highlights the peculiarities of the information modeling during the design of the construction of facilities of different types comprising the overall system of the development of cluster sites at oil and gas fields. Project management software (MS Project, Oracle Primavera and similar ones) do not fully solve the problems of design solution optimization for different types of construction facilities. The method proposed is based on the staged generation of the integrated project model. Block diagram of the information modeling algorithm is provided. At the first stage local models are selected and calculated based on the specific features of the three organization forms of the facilities: linear, site, industrial building and units. As applicable to the linear facilities (motorways, pipelines) structure-modular approach enabling implementation of the design and technological solutions based on the environmental situation along the structure length. For the site facilities and industrial buildings matrix models are recommended (critical path analysis, continuity of the resource utilization and work scope). The integrated schedule at the second stage is provided in MS Project. At the third stage probabilistic prediction of the construction timelines by means of simulation modeling in MS Project is performed. An example of the method practical implementation is provided. Information modeling technology development aimed at the construction information model visualization is provided.
Organization of Management of Social and Economic Systems of the Region in the Conditions of the Required Technosphere Safety
Authors: Burlov V G , Lepeshkin O M , Lepeshkin M O , Solovev D B 
Published: April 2020

Abstract
Management of social and economic systems, ensuring the technosphere security of the region uses models based on the analysis. The use of such models does not provide a guarantee of achieving the goal of forming processes with specified properties. The control model based on the synthesis and the law of preservation of object integrity allows to solve the inverse problem of management and to formulate conditions of application of program-target management.
Densely-Packed Construction for Hybrid Power Control System for Unmanned Aerial Vehicles
Authors: Zagumennov F A , Merzlikin V G , Radaykin A G 
Published: April 2020

Abstract
This paper examines the creation of the hybrid power control system with dense layout of units for the various vehicles. The relevance of the topic is proved by the several publications of Toyota Motors, Subaru Corporation, Texas Instruments and others, who have implemented similar decisions in their electronic control units. The mathematical model and the developed prototype are suitable for gasoline internal combustion engine, where the main feature of this development is the support and control of energy generation. Due to the dense layout of particular vehicles it is necessary to resolve the issues of electromagnetic compatibility, based on protection and decoupling of various elements among themselves. The controlling device for the internal combustion engine of vehicle carries out a complete decoupling of control and signal circuits, and protection of power for integrated circuits. These constructive decisions include the installation of optically decoupled devices, protective diodes and resistances for bypassing the high voltage surges. The proposed concept includes the control of the engine cooling, ignition, engine rate and throttle, generation current, engine startup and cut-off. The prototype working on this concept has an increased uptime and working distance. These features ensure the stability of the engine and its primary characteristics of rate support and generation current control. Processes of installation prototype modeling, technical decisions and reliability issues have been described. This work can be used to develop the engine control units with high reliability and diverse set of functions.
Chemical Utilization of Piperylene
Authors: Daminev R R , Sharafutdinov V M , Karimov O Kh 
Published: April 2020

Abstract
The interaction of aromatic amines with piperylene and its chlorine derivatives was being studied. Direct alkylation of aniline by piperylene in the presence of Lewis acids results in its C-substituted derivatives. At reaction of 4-chloro-2-pentene and 3,4-dichloro-2-pentene with arylamines in medium of excess aromatic amine, ring-substituted arylamines are formed due to proceeding Claisen’s amino-rearranging of initially formed N-substituted products. In medium of triethylamine, the same reaction is completed at the stage of N-alkenylation. The compounds obtained are of interest as substances with biological activity; at the same time they are valuable intermediates for the synthesis of nitrogen-containing heterocycles.