scholarly journals Improving the Methodology for Calculating the Average Turnover of Gondola Cars of an Iron and Steel Plant

2020 ◽  
Vol 18 (1) ◽  
pp. 184-195
Author(s):  
A. T. Popov ◽  
A. S. Khmelev

The average daily mileage of a wagon, its productivity and turnover determine the level of efficiency of rolling stock use. The car turnover is calculated and normalized not only for the fleet as a whole, but also for each type of rolling stock, for a particular region and road, depending on the nature of the transportation work. Accelerating car turnover increases its productivity and increases profit of an operator company. At the same time, its decrease negativ ely affects the capacity of the infrastructure, entails an increase in the cost of shunting and train work, which means that it will increase the cost of transportation. In modern conditions, turnover is determined for each participant in transportation in accordance with his area of responsibility. For an iron and steel plant, the use of an optimal methodology for recording the time spent by a wagon on its tracks allows us to adequately assess this important quality indicator, as well as to monitor its change as a result of introduction of new technologies for transport maintenance of workshops, reconstruction of station layout and optimization of the transportation process. The objective of the study is to improve the methodology for determining car turnover on access roads of a metallurgical enterprise for universal rolling stock in the context of dual operations. The authors use general scientific methods, mathematical methods, comparative analysis. This article presents the main provisions of the methodology, which will allow determining turnover of gondola cars subject to a single or dual operations in the form of a single indicator which is average weighted car turnover.

2020 ◽  
Vol 17 (5) ◽  
pp. 228-243
Author(s):  
A. T. Popov ◽  
O. A. Suslova ◽  
A. S. Khmelev

Today, the creation and use of powerful information systems for managing the raw material flows of a metallurgical enterprise transported by the railways allow to diminish turn-round of wagons on the house tracks of the enterprise, to reduce the stock of raw materials in wagons, to create conditions for uninterrupted production, as well as to increase the level of maturity of cross-functional interaction of divisions.This necessitates the development of a system of rapid collection, analysis, and visualization of information on the supply of raw materials, which will act as a single information space to coordinate the actions of all parties involved. Such an information system should support decisions at both the operational and tactical levels. Operational decisions in this case include changing plans for the current period, purchasing missing volumes, redirecting raw materials to other consumers, prioritization of relevant shipments and wagons’ rearrangement. Tactical level includes revision of reserve and consumption standards, elaboration of special agreements with carriers.The objective of the study is to investigate the possibility of using an information system for controlling raw material transportation to reduce the turn-round of wagons on the house tracks of a metallurgical enterprise. The authors use general scientific methods, comparative analysis, mathematical methods. The article studies the main functionality of such a system, presents a methodology for calculating the investment attractiveness of a project, and suggests further directions for development in the field of information interaction between enterprises and rolling stock operators. 


Author(s):  
Tetiana Fursenko ◽  

The aim of the paper is to give an overview of the qualification requirements for future pilots in Canada and to discuss trends in such professionals training modernization. The methodological framework of the research is comprised of general scientific methods (analysis, synthesis, comparison, generalization – to study the works of foreign scientists, official and legal documents); specific-scientific methods (categorial analysis – to reveal the essence and clarify the definitions of the basic concepts of the study), and the structural and functional analysis – to determine the organizational, content and procedural features of pilot training in Canada. The analysis of the normative and legislative documents showed that the most professionally important licenses giving a pilot a professional right to work in the aviation industry and civil aviation are the Commercial Pilot’s License – CPL and the Airline Transport Pilot’s License – ATPL. The paper concentrates on the analysis of the requirements for knowledge and skills that a pilot has to possess and develop as well as a number of important steps to be completed to get the CPL and ATPL as specified in the corresponding sections of the Canadian Aviation Regulations. In order to obtain a license, a future pilot has to comply with the requirements for age, health status, a number of written examinations and flight training – flight hours, flight conditions and the level of skills. The qualification of a pilot can be attained at Flight Training Units or following the completion of university and college programs. The paper describes the specifics of integrated courses offered by the former – the Commercial Pilot Licence – Aeroplane (CPL(A)) integrated course, Commercial Pilot Licence – Aeroplane/Instrument Rating (CPL(A)/IR) Integrated Course, and Airline Transport Pilot Licence – ATP(A) Integrated Course. The conclusion is made that the types of flights and pilot activities in terms of CPL (A), CPL (A) / IR and ATP (A) licenses are largely the same. The difference lies in the number of hours provided for certain activity types and several specific requirements such as flying in difficult weather conditions or interaction between crew members. Among pilots’ training modernization trends we single out the following: its organization based on the competence approach, a reduction in the cost of training a new generation of pilots and increasing its efficiency through the introduction of new technologies in the training process.


2021 ◽  
Vol 108 ◽  
pp. 03002
Author(s):  
Anna Valeryevna Serebrennikova ◽  
Maria Sergeyevna Serebrennikova

A growing number of new types of criminality causes concern of the society, authorities and, in particular, of criminologists, since the penetration of criminals into the virtual environment and learning to use new technologies become dangerous and adjust criminal motivation. The sophistication of criminality prevention and countering defines the goal of this research consisting in a thorough scientific understanding of existing criminological methods. Modern informational-analytical area of activity of law-enforcement authorities includes the use of digital criminological tools under criminality prevention programs, mathematical methods of its analysis, making up profiles, etc. They are usually applied for criminological analysis and prediction but it has no theoretical basis that addresses the issues of countering digital crimes and that is being formed currently based on criminological neo-classics and achievements of social and human sciences and digital criminology. As a methodological basis for the research, a general scientific dialectic method of scientific cognition was used. Moreover, the paper uses a number of particular scientific methods that include historical-legal, comparative-legal methods, statistic observation and analysis of generalized information. The novelty of the research consists in the fact that its results can be used by experts whose professional activity is intended against crimes.


2019 ◽  
pp. 30-41 ◽  
Author(s):  
E.P. Sannikova ◽  
A.V. Malysheva ◽  
F.A. Klebanov ◽  
D.G. Kozlov

The capacity of yeast to produce the highly active variants of PLA2 has been confirmed. The high-active variants were based on the original enzyme from the strain А-2688 of Streptomyces violaceoruber. To reduce the enzyme toxicity and to increase its expression, various approaches were tested including point mutations, construction of artificial N- and/or C-end pro-regions, hybridization with other proteins and engineering or inactivation of glycosylation sites. As a main result, the modified PLA2 enzymes were obtained which have the same secretion level as their low-active predecessors, but specific activity of which was at least tenfold higher. As the main feature, the selected mutants were characterized by a lower affinity for Ca2+ that probably accounts for their low toxicity (and high expression capacity) at the stage of biosynthesis and their ability to activate under special conditions, e.g. during the egg yolk fermentation. The data obtained can provide a basis for the cost reduction of highly active PLA2 enzyme preparations in industries where the application of high calcium concentrations is allowed. recombinant phospholipase А2, Streptomyces violaceoruber, yeasts, secretion, producer strain The work was initiated by the Innovation Center Biriuch - New Technologies, Ltd., and was supported within the framework of the State Assignment no. 595-00004-18 PR.


Micromachines ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 882
Author(s):  
M. Munzer Alseed ◽  
Hamzah Syed ◽  
Mehmet Cengiz Onbasli ◽  
Ali K. Yetisen ◽  
Savas Tasoglu

Civil wars produce immense humanitarian crises, causing millions of individuals to seek refuge in other countries. The rate of disease prevalence has inclined among the refugees, increasing the cost of healthcare. Complex medical conditions and high numbers of patients at healthcare centers overwhelm the healthcare system and delay diagnosis and treatment. Point-of-care (PoC) testing can provide efficient solutions to high equipment cost, late diagnosis, and low accessibility of healthcare services. However, the development of PoC devices in developing countries is challenged by several barriers. Such PoC devices may not be adopted due to prejudices about new technologies and the need for special training to use some of these devices. Here, we investigated the concerns of end users regarding PoC devices by surveying healthcare workers and doctors. The tendency to adopt PoC device changes is based on demographic factors such as work sector, education, and technology experience. The most apparent concern about PoC devices was issues regarding low accuracy, according to the surveyed clinicians.


Informatics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 30
Author(s):  
Mansoor Ahmed Soomro ◽  
Mohd Hizam-Hanafiah ◽  
Nor Liza Abdullah ◽  
Mohd Helmi Ali ◽  
Muhammad Shahar Jusoh

Industry 4.0 revolution, with its cutting-edge technologies, is an enabler for businesses, particularly in reducing the cost and improving the productivity. However, a large number of organizations are still too in their infancy to leverage the true potential of Industry 4.0 and its technologies. This paper takes a quantitative approach to reveal key insights from the companies that have implemented Industry 4.0 technologies. For this purpose, 238 technology companies in Malaysia were studied through a survey questionnaire. As technology companies are usually the first in line to adopt new technologies, they can be studied better as leaders in adopting the latest technologies. The findings of this descriptive study surfaced an array of insights in terms of Industry 4.0 readiness, Industry 4.0 technologies, leadership, strategy, and innovation. This research paper contributes by providing 10 key empirical insights on Industry 4.0 that can be utilized by managers to pace up their efforts towards digital transformation, and can help the policymakers in drafting the right policy to drive the digital revolution.


1999 ◽  
Vol 14 (3) ◽  
pp. 98-102 ◽  
Author(s):  
S.B. Wuest ◽  
D.K. McCool ◽  
B.C. Miller ◽  
R.J. Veseth

AbstractResearch aimed at advancing conservation farming practices is typically performed using traditional scientific approaches, which have been highly successful in increasing agricultural output and efficiency. With the current emphasis on environmental and economic sustainability of agriculture, there is a need for a more integrated approach to applied agricultural research. Participatory research helps to bring scientific methods and the integrated production needs of farmers together to develop practical, effective, and carefully tested farming methods. The strength of participatory research is in the synergism of scientists and farmers working together to design, implement, and evaluate research. The development of new technologies for farming systems large or small, conventional or organic, can be greatly enhanced through more extensive use of participatory research.


Author(s):  
Jan-jaap Moerman ◽  
Jan Maarten Schraagen ◽  
Jan Braaksma ◽  
Leo van Dongen

AbstractGraceful extensibility has been recently introduced and can be defined as the ability of a system to extend its capacity to adapt when surprise events challenge its boundaries. It provides basic rules that govern adaptive systems. Railway transportation systems can be considered cyber-physical systems that comprise interacting digital, analog, physical, and human components engineered for safe and reliable railway transport. This enables autonomous driving, new functionalities to achieve higher capacity, greater safety, and real-time health monitoring. New rolling stock introductions require continuous adaptations to meet the challenges of these complex railway systems as an introduction takes several years to complete and deals with changing stakeholder demands, new technologies, and technical constraints which cannot be fully predicted in advance. To sustain adaptability when introducing new rolling stock, the theory of graceful extensibility might be valuable but needs further empirical testing to be useful in the field. This study contributes by assessing the proto-theorems of graceful extensibility in a case study in the railway industry by means of adopting pattern-matching analysis. The results of this study indicate that the majority of theoretical patterns postulated by the theory are corroborated by the data. Guidelines are proposed for further operationalization of the theory in the field. Furthermore, case results indicate the need to adopt management approaches that accept indeterminism as a complement to the prevailing deterministic perspective, to sustain adaptability and deal effectively with surprise events. As such, this study may serve other critical asset introductions dealing with cyber-physical systems in their push for sustained adaptability.


2021 ◽  
Vol 5 (5) ◽  
pp. 39-43
Author(s):  
Maksim V. SHEVLYUGIN ◽  
◽  
Daria V. SEMENOVA ◽  

When developing a high-speed contact suspension for railways electrified with alternating current, it is important to ensure that the electric rolling stock passes the neutral insert without turning off the current and without reducing the speed of movement. The article provides an analysis of previously developed devices in the field of power supply of electrified railways of single-phase alternating current, in which an attempt was made to pass an electric rolling stock of a neutral insert without disconnecting the load. The device of isolating coupling of a catenary and a neutral insert for high-speed railway lines electrified on alternating current is described. In this case, the passage of the neutral insert is carried out under current and braking of the electric rolling stock will not occur. Among other things, to improve the efficiency of high-speed contact suspension for railways electrified with alternating current, it is proposed to use new materials and new technologies that can be used in the device of insulating coupling of the catenary


2021 ◽  
Vol 2021 (23) ◽  
pp. 31-42
Author(s):  
Anatolii Tsynka ◽  
◽  
Andrii Hrinchuk ◽  
Ivan Rakovych ◽  
◽  
...  

Introduction. In the modern conditions of the pricing system in the construction of Ukraine, the key value have the estimated norms, which are presented in separate collections, the main purpose of which is to determine the standard quantity of resources required to perform a particular type of work as a basis for the transition to the cost indicators. In order to determine the cost of road work objectively and accurately, it is essential that the indicators of estimated norms meet the requirements of regulatory documents and modern methods of execution of road works.Problematics. In connection with the active improvement of the regulatory base of the road construction industry, permanent upgrade of road organizations technique fleet, the introduction of new technologies and materials in construction and operation of roads, improving the methods of work there is a discrepancy between the existing resource element of estimated norms and the actual conditions of work in terms of built-up labor costs, the operation time of machines and mechanisms and the range of materials. Accordingly, it affects the reliability and accuracy of determining the cost of road works.Purpose. Improvement and harmonization with actual working conditions and requirements of regulatory documents of industry regulatory and estimate base of resource elementary estimated norms for work performed during construction, reconstruction, repair and operational maintenance of roads and bridges to ensure reliable and valid technical, economic and estimated calculations.Materials and methods. During work performance the analysis of the regulatory documentation, establishing the requirements to the technology of road works and materials has been carried out. A number of chronometric observations with the measurement of time of road works in full-scale conditions was carried out. The obtained data were summarized, averaged and on their basis the indicators of the resource element of the estimated norms were estimated.Results. A review of the main amendments and additions, which came into force after the approval of Amendment No 2 SOU 42.1-37641918-035:2018 [1] and Amendment No 2 SOU 42.1-37641918-071:2018 [2], which were developed to improve the regulatory-estimate base for the calculation of road works, taking into account the requirements and provisions of existing regulatory documents taking into account the current state of scientific and technological progress in the road sector.Conclusions. The above analysis of the amendments that came into force with the approval of [1]. and [2] will systematize the innovations provided by the requirements of current regulatory documents on the calculation of the cost of road works and the development of relevant documents at all stages of the investment process, planning and organization of road works, as well as the writing-off of material resources. Review and systematization of recent improvements in the estimated regulatory documents for road works will provide an opportunity to optimally plan the use of available material, labor and financial resources, often limited.Keywords: public road, operational maintenance, investment documentation, overhaul and current repairs, machine, mechanism, regulatory document, resource element estimate norm, Standard of Organization of Ukraine.


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