bluuebunny/crossref_metadata_2025_split huggingface dataset:
Economical Aspects of the Cost Regulation for the Construction of Buildings
Authors: Sinenko S A , Doroshin I N 
Published: March 2021

Abstract
The management of organization projects becomes specially actual, when there are formed in Russia the conditions of wide use of the project management methodology. The method given is an effective management tool in real Russian conditions in the same time is a tried mean of realization of organizational projects of the necessary quality, in the fixed time, within the limit of accepted budget. The project cost is defined by the combination of costs of project resources, by costs and time of execution of works of the project. For the construction projects the cost of construction is defined, which represents the part of project cost, that includes money, necessary for the capital construction. The calculation of all expenses on the project is equivalent to the general project cost. The management of project cost includes processes, necessary for the provision and guarantee of the accomplishment of project in the limits of affirmed budget. In the context of this paper cost management and expenses management are practically the same terms.
Structure of Fe-Cu-Nb-Si-B Alloys with Various Copper Concentration
Authors: Tkachev V V , Il’in N V , Kraynova G S 
Published: March 2021

Abstract
In this paper, for alloys: FeCu0,2Nb3Si16,5B6, FeCu1Nb3Si16B6, FeCu1,5Nb3Si16,5B6 inhomogeneity of structure in thickness is shown with using scanning and transmission electron microscopy, crystalline phases are determined. It is noted that a multiphase magnetic structure is observed in an alloy with a low copper content upon complete crystallization.
The Problem of the Vladivostok Fortress Fortifications’ Reorganization
Authors: Moor V , Gavrilov A , Makarova A 
Published: March 2021

Abstract
There is a large number of fortifications built in Vladivostok and its suburbs. The constructions of Vladivostok Fortress are an outstanding example of fortifications and defensive architecture. The complex of Vladivostok Fortress is well-studied, but the problem is that these significant elements of the cultural landscape are gradually being destroyed. And there are several reasons for this. On the one hand, it is caused by the insufficient funding of measures to preserve the existing structures. On the other hand, there is no scientifically grounded strategy for preserving and reorganizing these constructions. There is also a demand for specific project proposals related to the reorganization and modern use of Vladivostok Fortress constructions. In the article, we consider this problem first in general theoretical terms, and then we suggest a specific proposal to reorganize fortifications on the Nazimov Peninsula in Vladivostok to turn it into the Park of Military Glory.
BIM-technologies and Modern Methods of Planning and Management in Building, taking into account Supplies and Costs
Authors: Tsapko K , Melnikov L 
Published: March 2021

Abstract
The article deals with the problematic aspects of communication using information and intelligent environments in the building industry - software systems BIM-modeling and production management. We consider issues of effective communication in software environments for network management and enterprise management improvement. The article notes the importance of role-based communications in the innovation process. Based on the information approach to the development of communication, we show the possibility of creating institutional forms of innovation in the management of building production with the help of software packages BIM-modeling and production control.
Bearing Capacity of Steel-Polystyrene Concrete Slab
Authors: Kostyuchenko Ya B , Varlamov A A , Rimshin V I , Bykov G S , Roschina S 
Published: March 2021

Abstract
The article proposes the construction of a steel-concrete floor. Processes of making, modelling and testing of steel-polystyrene concrete beams and slabs are considered. The results of tests of prototypes are presented. During the tests, the stresses in the steel components of the beams and the deflections value of the plates were measured. The combined action of a thin-walled steel structure and polystyrene concrete is noted. As a result of the combined action of polystyrene concrete and a thin-walled profile, it was possible to more evenly distribute stresses in the metal profile. The destruction of the structure occurred due to the loss of stability of the upper profile belt between the anchoring points. Polystyrene concrete slab is recommended as a roof slab in residential buildings.
Temperature–Time–Transformation Diagrams Construction for Beta-Solidifying TiAl-Based Alloy in As-Cast Condition
Authors: Panin P V , Lukina E A , Shiryaev A A 
Published: March 2021

Abstract
An experimental investigation of structure evolution kinetics in a new six-component TiAl-based alloy Ti-44.5Al-2V-1Nb-(0.5…L5)Zr/(L5…2.5)Cr-(0…0.1Gd) (at.%) with variable Zr, Cr, and Gd content has been accomplished under the conditions of high-temperature exposures in the temperature range 1000–1300°C and durations of 15–240 min. The Temperature – Time – Transformation diagrams have been constructed to summarize data on isothermal phase transformations for both Zr(+Gd)- and Cr(+Gd)-containing compositions with the initial as-cast structure. It is shown that the variation of Zr and Cr contents within the given limits for the studied alloy, as well as the doping with Gd microadditions in the amount of 0.1 at.% do not lead to any noticeable effect on the kinetics of structure behavior in isothermal conditions.
Experimental Testing of Anti-Corrosive Ferrosilicon Treatments for Dense Medium Separation of Diamond-Bearing Raw Materials
Authors: Timofeev A S , Dvoichenkova G P , Chernysheva E N 
Published: March 2021

Abstract
Experimental studies have shown that electrochemical effects and inert nitrogen gas used for mixing ferrosilicon instead of air, which contains a strong oxidant—oxygen—are indeed effective methods for reducing the corrosive effects of an aqueous medium on ferrosilicon pellets. This research determined how effective nitrogen application to the ferrosilicon pellet surface was in protecting them from corrosion as they interfaced with water systems in the process of dense medium separation.
System Infrastructure Formation Support for Business Activities in Coastal Destinations
Authors: Dyshlovoy I N , Ostovskaya A A , Pavlenko I G 
Published: March 2021

Abstract
The intensive development of the infrastructure support for entrepreneurship is considered to be one of the major strategic foci of the public regulation of business in the conditions of the developing market relations and is particular sensitive to the structural changes in the economy, efficiency of the national economic policy and economic, social, financial, structural and administrative measures, specifically in small business as it takes on a social function as a catalyst of the new products and service creation by serving the needs of the population and finding new supply and sales channels. The infrastructure system for entrepreneurship in a coastal destination is a complex of locally operating industries including construction of roads, canals, ports, bridges, airdromes and warehouses, power stations, transport, communication, education, information services, science, healthcare, financial and credit and legal services. However, it is crucial to understand that coastal destinations display a certain distinctive feature; i.e., apart from being associated with a certain territory, they, first of all, generate tourism services which play the role of a key strategic factor in the development of such destinations. Thus, there is an objective need for providing rationalization and methodological recommendations on further effective development of tourism destinations influenced by the bulk of tourism services. Further studying of coastal destinations under current conditions of entrepreneurship development requires elaboration of workable tools of destination promotion based on the range of offered services, which is expected to subsequently allow for continuous development of recreation and tourism.
Journey of Mark Twain to Crimea
Authors: Shendrikova S P , Shendrikov A A , Pavlenko I G 
Published: March 2021

Abstract
The resort can be regarded as a kind of parallel reality to which a person sets off for a certain amount of time in order to rest, recreate and then return to their usual environment. The most evident reason for the emergence of resorts as civilizational phenomenon is the fact that society of the 19th century acknowledged the problem of quality of life and public health. In connection with the incorporation of Crimea to the Russian Empire in 1783, a new era began in the history of the peninsula, which is of great interest to both Russian and foreign societies. The amount of people who wanted to visit the peninsula grew significantly over time and peaked in number in the 60’s of the 19th century. The majority of tourists coming to Crimea were those representing the intellectual elite of the society who wished to get a first hand experience with the remnants of the rich past of the Crimea as well as its healing climate and recreational potential. The majority of the researchers were scientists chasing the idea to conduct research in various fields of science, study distinguished places and the uncharted corners of the mysterious peninsula. In addition to the official and festive visits, scientific expeditions and descriptive business trips, various tourist, cultural and treatment-and-prophylactic trips had been made.
Mass Transfer in a Layer of Aluminized Glass-Fiber Material in the Treatment of Chrome-Containing Wastewater
Authors: Gudkov A G , Pavlov M V , Karpov D F 
Published: March 2021

Abstract
It is possible to use column-type devices with the loading of composite material - thin glass fibres partially coated with an aluminium layer (AGFM) to purify low-concentrated wastewater on plating plant containing chromium compounds. The main physical characteristics of this material are given. For the mass transfer research, current-potential curves obtained by reducing the chromium forms Cr(VI) to trivalent on a thin copper yarn placed in a layer of aluminum-removed fiberglass were studied. Dependence of effective mass-transfer coefficient on solution flow rate is obtained. Taking into account the ionic strength of the solution, the diffusion coefficient of the reducing anion Cr(VI) was calculated, which allowed to move to the criterion equations of the form Nu = f (Pr, Re). Coefficients are found in the criteria mass-transfer equation at different degrees of filling of the filter volume with a AGFM material.
Ciliofauna Species Wealth of the Khabarovsk Central City Pond
Authors: Tribun M M , Zhukov A V , Nikitina L I 
Published: March 2021

Abstract
The paper describes the composition of the Ciliata species of the Khabarovsk Central Pond. In the course of the inventory, 43 Ciliata species belonging to 2 subtypes and 11 classes have been identified, the most numerous of which are Spirotrichea and Oligohymenophorea. Also, 20 species have not previously been recorded on the territory of the Middle Amur Region. By the frequency of occurrence, the vast majority of species (23 representatives) are observed in the solitary samples (up to 15 %). The background species include ciliates such as Coleps hirtus, Strombidium viride, Stylonychia mytilus complex, Paramecium caudatum, and Uronema marinum. It has been found that in the reservoir being studied, the average size (up to 200 μm) ciliates dominate. By the ecotope preferred, the ‘transitional’ cluster representatives prevail, which indicates the possible widespread colonization of the reservoir by protozoa. This is due to the shallow depth of the Central Pond and, therefore, the lack of clear boundaries between individual zones.
Technique of Assessment of Environmental Damage Caused by Electroplating Production Facilities (by the Example of Chromium Plating Process Lines)
Authors: Fomichev V T , Savchenko A V , Gubarevich G P 
Published: March 2021

Abstract
The use of galvanic chromium plating is accompanied by negative consequences related to considerable damage caused to the environment. The authors have developed new chromium plating electrolytes and methods to obtain chromium-based galvanic alloys which allow reducing the environmental harm and decreasing the morbidity rate of occupational diseases among operating personnel. A technique of assessment of environmental damage caused by electroplating production facilities, which is based on the ecological compatibility criterion has been suggested.
Decreasing Emissions of PM by Vehicles through Brake Energy Recovery
Authors: Rakov V A 
Published: March 2021

Abstract
A significant contribution to the formation of PM 10 and PM 2.5 in the atmosphere of large cities is made by frequent braking by friction brake mechanisms. The author considers electrodynamic regenerative braking as one of the advantages of hybrid and electric vehicles, which can significantly reduce the formation of PM during braking. Using experimental studies, the author estimates the wear of the brake pads of the same vehicle during regenerative and mechanical braking. During the experiment, a series of acceleration and braking cycles was performed from a given speed to a complete stop, after which the friction brake pads were dismantled and their weight was measured. Then, during the calculation and comparison, the PM emission reduction is determined in a test with braking energy recovery.
Geological and Economic Monitoring and Assessing the Prospective Expansion of Graphite Deposits in New Development Areas
Authors: Dadykin B C , Dadykina O V , Gerashchenkova T M 
Published: March 2021

Abstract
This article discusses the results of the geological and economic monitoring of graphite and apatite deposits in the south of the Republic of Sakha (Yakutia) conducted by the authors. These deposits differ in initial technical and economic indicators and development conditions, therefore, calculating the aggregated geological and economic indicators is required. The estimator results will allow, on the one hand, determining the investment attractiveness of each mineral resource facility, on the other hand, evaluating the sequence of their operational commissioning. In the development prospect of the southern Yakutia mining regions, exploiting the Birikeen apatite deposit is seen, which also needs a geological and economic evaluation. As a tool for assessing the technical and economic indicators of these deposits, it is recommended to use the methodology for assessing the mineral potential while conducting geological and economic monitoring. This work was financially supported by the grant of the President of the Russian Federation No. MD-2409.2020.5.
Ways of the Freight Turnover Increasing of the Far Eastern Northern Latitudinal Railway
Authors: Larchenko Yu G , Shusharina G A , Muravskaya E I 
Published: March 2021

AbstractThe article analyzes the main tasks of ensuring the efficient use of rolling stock, approved by the Government of the Russian Federation in the strategic program for the development of railway transport until 2030. One of the key tasks in this field of activity is to increase freight turnover within the country and beyond due to the modernization of the fleet of freight main locomotives and the reconstruction of individual sections of the railway. In this regard, the results of a comparative analysis of two series of locomotives - 3TE25KM and 3TE10MK according to the main technical characteristics are proposed for consideration, main indicators of the operational work of diesel locomotives that affect the amount of cargo turnover are described. The implementation of the cargo turnover plan of the Far Eastern northern latitudinal railway is analyzed - these are Komsomolsk-na-Amure-Volochaevka II and Komsomolsk-na-Amure-Sovetskaya Gavan. In conclusion, results of testing a new locomotive are presented, based on their technical and economic characteristics, such as the amount of work performed, technical speed, average daily productivity of the locomotive and a number of other indicators.
Perspective Technologies for the Disposal of Spent Adsorbents Based on Zeolites in Building Materials
Authors: Obuzdina M V , Rush E A 
Published: March 2021

Abstract
This paper presents the results of investigations and substantiation of the possibility of disposal of spent adsorbents created on the basis of the modification of natural zeolite tuffs of the Holinsky deposit of East Transbaikalia, and used in industrial wastewater treatment technology, in building materials are presented. Effective technological methods of using zeolites and zeolite-like materials are considered: non-firing technologies (an extensive class of mixed binders), concretes, autoclave-free silicate products, ash-zeolitive compositions; firing technologies (high-temperature: 1100-1200 °C artificial porous aggregates), ceramic materials of a wide range of applications, aluminosilicate component in the preparation of Portland cement clinker and binders, foams.
Integrated Method for Assessing Occupational Risks at Oil and Gas Production Facilities
Authors: Gorlenko N V , Murzin M A 
Published: March 2021

Abstract
Today, the problem of ensuring safe working conditions in the workplace is relevant for any employer. At the moment, despite the introduction of advanced technologies and equipment at oil and gas production facilities, personnel are exposed to a set of adverse production factors having an industry-specific nature and features. These features influence the reliability of the results of the occupational risk assessment. The methods existing today do not fully reflect the whole picture of risk in the workplace, but give only their fragmented values. The aim of this work is to develop an integrated methodology for assessing occupational risks for oil and gas production companies. In this work, from the variety of methods, we selected four methods that together take into account a significant number of risk-generating aspects, namely: the method of assessing the individual occupational risk level, the Fine-Kinney method, the method of scoring occupational risks, and the method of sociological survey of workers. The study on the assessment of occupational risks using an integrated method was carried out at the facilities for the development of three fields - the Yarakta, Iktekh, and Markovo fields belonging to Irkutsk Oil Company LLC. According to the results of applying the integrated assessment of occupational risks, most positions had a “medium” risk level, but for occupations engaged in manual labor and having a lower degree of automation of labor a “high” risk level was established. For these workplaces, it is necessary first of all to implement measures to improve working conditions.
Process Water Production for Oil and Gas Utility Systems at High Water Color Index Conditions
Authors: Lokshina E A , Kolchin A V , Lokshin A A 
Published: March 2021

Abstract
The article is devoted to the water treatment of high water color index waters for oil and gas utility systems at low temperatures conditions. The relevance of the article is justified by the development of pipeline transport in the regions of Eastern Siberia and the Far East. The purpose of the article is to provide an empirical presentation of the feasibility and efficiency of reactant treatment of high water color index waters at low temperatures by the example of real waters of the Lena River (Eastern Siberia) and the Zeya River (Far East).
Frequency Analysis of the Occurrence and Development of Accidents at Oil and Gas Facilities under Abnormal Weather Conditions in the North
Authors: Zakharova M I 
Published: March 2021

Abstract
In the article the climatic features of the North are analyzed, anomalous weather conditions characterized by the formation of powerful temperature inversions are identified. The influence of adverse anomalous weather conditions on the nature of accidents is justified, and significant changes in the development of gas pipeline accidents in the North than in conditions with a moderate climate are shown. Based on the results of the analysis of gas pipeline accidents that occurred at low temperatures, the main causes of gas pipeline accidents were identified, and “event trees” of gas leakage from the gas pipeline was developed with an assessment of the frequency of emergency scenarios taking into account the abnormal conditions of the North. The most dangerous scenarios of gas pipeline accident evolution have been identified and their risk levels in the zone of the damage factors have been assessed on the basis of acceptable risk criteria.
Formation of an Agricultural Cluster Based on the Ranking of Enterprises
Authors: Simdiankin A A , Probin P S , Yukhin I A , Rembalovich G K 
Published: March 2021

Abstract
The article deals with the formation of the cluster core and its environment with the clarification of the organizational structure. Much attention is paid to the necessity and sufficiency of including organizations in the cluster at the time of its formation and initial stage of operation. The authors suggest to use a ranking method based on the significance of the cluster’s areas of work as well as the organizations that belong to each of them. At the same time, the cluster’s work areas are related to the its missions in the destination: industrial; innovative; satisfying the requirements inside the cluster; satisfying the requirements outside the cluster; social; territory development; cluster development. Within each of the directions the minimum number of organizations sufficient for the effective operation of the cluster was determined. Then the cluster organizations were ranked according to the allocated missions. Based on the ranking organizations of primary importance at the initial stage of the cluster are identified: organizations that provide financial services, supply machinery, equipment, production lines and knowledge as well as bulk buyers. The cluster has a “zone of necessary organizations” for starting the cluster as well as a “zone of efficiency increasing” that can be expanded and replenished as necessary.
Comparison of Different Methods for Preliminary Separation of Free Grain When Hatcheling Standing Plants
Authors: Ozherelyev V N , Nikitin V V , Komogortsev V F 
Published: March 2021

AbstractThe article presents the results of laboratory studies, confirming the possibility of preliminary separation of free grain from the hatchelled grain heap before it enters the combine harvester threshing chamber. It has been established that the most promising methods for performing this technological process are a mesh conveyor mounted in front of the thresher and an inclined chamber equipped with a grating bottom with oblong holes. The experimental results indicate that the maximum passage of free grain through the openings of the mesh conveyor 2000mmlong is 94.66%, and for an inclined chamber with a grating bottom 950mmlong – 68.7%. To ensure the passage of 99% free grain, the length of the mesh conveyor separating surface should be at least 2.69 m, and the length of the inclined chamber should be 1.17 m. The practical implementation of the first separation method requires shifting the threshing drum back and drastically shortening the straw walker. The second method of separation is more acceptable, since it does not require a substantial rearrangement of the serial harvester.