14 research outputs found
Organisation of container trains between St. Petersburg and Novorossiysk
On the basis of the developed methodology for establishing organisational and technological requirements for the destination of container trains, on the example of the direction of circulation of the container train St. Petersburg - Novorossiysk, a practical calculation has been made to determine the economically feasible length and frequency of container train running
Methodological approaches evolution to container trains design with differentiated length
The current limitations of sustainable growth of railway container traffic at the present stage are analysed. The article analyses the main organisational and technological parameters of container trains on the Russian railway network and the requirements for their implementation. It is revealed that strict compliance with the requirements to form a container train of unified length of 71 conventional wagons does not always meet the requirements of commodity owners and does not improve the conditions of supply of their products. On the other hand, in the conditions of a deficit of throughput capacities of the railway infrastructure in some directions, there is a need to increase the length of container trains up to 114-140 conventional wagons. Within the framework of the development of methodological approaches to the establishment of expedient organisational and technological requirements for the assignment of container trains, a classifier of solutions for sorting of container trains of differentiated lengths based on the technical and economic characteristics of a particular railway direction has been developed. The application of the original classifier will increase the validity of the organisation of container trains of differentiated length, taking into account the growth of commercial attractiveness of the transport service for goods owners and economic efficiency for the railway carrier and the organisers of container trains
Optimization of production and transport infrastructure based on cluster analysis methods
In order to solve the problems of optimizing production and transportation systems, a clustering procedure for objects is suggested. The procedure is a universal methodology for dividing a set of objects into subsets with their centers possessing optimal properties. At the same time, the use of point proximity metrics used in cluster analysis models the minimization of distances during transportation. If the volume of produced/extracted containerisable products of a production point is considered as the “weight” of each point, than the problem of minimizing transportation costs can be solved as a problem of optimizing clusters and their centers. A set of analytical models has been developed to describe and optimize the choice of location and number of container terminals (CT) at the first level and container storage and distribution centers (СSDC) at the second level of a two-level terminal model and logistics infrastructure of the container transport system (CTS). New clustering algorithms are suggested to determine the locations of CT and СSDC based on the condition of minimizing transportation costs and creating a terminal and logistics infrastructure, taking into account given or random number of clusters
Solutions for transport and technological systems of regular container transportation
The limitations that hinder the effective organization of logistics of cargo transportation by container trains have been identified. The developed technical and technological models of container terminals are presented: a container storage and distribution center (container marshaling yard) and a rack-type container terminal, within the framework of transport and technological systems of regular container traffic. A key distinctive feature of the developed functional models of container terminals is to provide the possibility of end-to-end reception of full-component container trains to the container terminal and performing in-line processing of container trains, eliminating sorting and shunting operations associated with their preliminary reformulation, as well as replacing station sorting work with wagons with container sorting by destination using loading and unloading mechanisms. The technological aspects of their application in transport and technological systems of regular container traffic are considered. The requirements for the provision of container service using the proposed functional models of container terminals as the main elements in the logistics chain are formulated. A SWOT analysis of transport and technological systems of regular container traffic was performed based on the organization of end-to-end in-line processing of container trains in the conditions of terminal technology
Development of a method for reducing corrosion processes activity at water consuming facilities
This article is devoted to the development of a method for reducing the activity of corrosion processes on the metal surfaces of water consuming facilities (hereinafter WCF). Today for WCF the following problem is acute: the existing corrosion protection does not provide the necessary completeness of reliability, thereby preventing them from being operated in accordance with the established standards. Corrosion damage is often the cause of large-scale pollution of hydrosphere and lithosphere. Therefore, the task of preventing or achieving a possible minimum of corrosion and biofouling formation intensity is to ensure the maximum protection efficiency, which is directly related to the search for new methods to reduce the corrosion processes activity
Use of green tea for the production of sponge cake
The problem of micronutrient enrichment and the improvement of the technology for the production of flour confectionery products is relevant. The aim of the work is to study the possibility of using green tea to create sponge cake. The objects of study were Sencha green tea powders (Japan and China), wheat flour, their mixtures in different percentages and sponge cake. According to the obtained experimental data green tea powders is characterized by low humidity (5.0 ± 0.5) % and high acidity (5.8 ± 0.2) %. The content of flavonoids in tea is (52.5 ± 0.5) mg/100 g, the amount of β-carotene - (3.2 ± 0.5) mg/100 g. The following physical-chemical and technological parameters were determined in the finished products: moisture, porosity and swelling. Rheological characteristics of finished products were determined by the device “Structure meter ST-1M”. During storage of products the dynamics of microbiological indicators and water activity over 10 days was determined. The results objectively proved the possibility of using green tea for the production of flour confectionary products. Finished products had high organoleptic and rheological properties. The use of green tea enriched the product with phosphorus, iron, β-carotene and B vitamins
Informational technologies and the prospects of personalization of food rations
Among the main markets of the national technological initiative there is the platform of developing competitive projects of the food industry – FoodNet. The promising line of the market development is transition to personalized nutrition which takes into account a person’s genetic traits, his or her physiological and biomedical needs and creation of digital platforms for its implementation. In the context of constant growth of the number of diagnosable genetic diseases, including alimentary-dependent ones, such an approach is very modern. Medical technological scheme of constructing personalized products is presented in the article and also its implementation as exemplified by gluten-free flour confectionery articles is considered. A program module for automatic calculation of the characteristics of developed products was realized on the basis of the suggested scheme and it represents a client-server application. The optimal parameters for the biscuit manufacturing technology were set on the basis of the program module operation which allows obtaining products for special use and enriched with mineral substances
Informational technologies and the prospects of personalization of food rations
Among the main markets of the national technological initiative there is the platform of developing competitive projects of the food industry – FoodNet. The promising line of the market development is transition to personalized nutrition which takes into account a person’s genetic traits, his or her physiological and biomedical needs and creation of digital platforms for its implementation. In the context of constant growth of the number of diagnosable genetic diseases, including alimentary-dependent ones, such an approach is very modern. Medical technological scheme of constructing personalized products is presented in the article and also its implementation as exemplified by gluten-free flour confectionery articles is considered. A program module for automatic calculation of the characteristics of developed products was realized on the basis of the suggested scheme and it represents a client-server application. The optimal parameters for the biscuit manufacturing technology were set on the basis of the program module operation which allows obtaining products for special use and enriched with mineral substances
Self-Determination as a Mechanism for Personality Sustainability in Conditions of Daily Stress
During the COVID-19 pandemic, uncertainty, threat to life, and repeated lockdowns have significantly undermined people’s psychological well-being. In such situations, the basic needs for self-determination (SDT) are disrupted—autonomy, connectedness, and competence—but it is the resulting dissatisfaction that actualizes a search for strategies to cope with the problem. The objective of this article is to critically review the literature on various ways that people are coping with specific experiences during the COVID-19 pandemic and their relationship to basic needs to maintain sustainability. We searched on the Web of Science CC database for relevant studies (2020–2021) and their systematization from the standpoint of Self-Determination Theory (SDT). This showed the dynamics of coping methods, reflecting a transition from confusion when confronted with stress, to the selection of effective strategies, confirming that when basic needs are blocked for a long time, people begin to search for a way to satisfy them. We present three levels of grouped coping methods: (1) physiological, (2) behavioral, and (3) cognitive, demonstrating their interrelationship with orientation (to oneself or to the context), assessment (a threat or a challenge), and basic psychological needs. The proposed model opens up prospects for creating effective coping and training programs for sustainable development of the individual in crisis situations
Self-Determination as a Mechanism for Personality Sustainability in Conditions of Daily Stress
During the COVID-19 pandemic, uncertainty, threat to life, and repeated lockdowns have significantly undermined people’s psychological well-being. In such situations, the basic needs for self-determination (SDT) are disrupted—autonomy, connectedness, and competence—but it is the resulting dissatisfaction that actualizes a search for strategies to cope with the problem. The objective of this article is to critically review the literature on various ways that people are coping with specific experiences during the COVID-19 pandemic and their relationship to basic needs to maintain sustainability. We searched on the Web of Science CC database for relevant studies (2020–2021) and their systematization from the standpoint of Self-Determination Theory (SDT). This showed the dynamics of coping methods, reflecting a transition from confusion when confronted with stress, to the selection of effective strategies, confirming that when basic needs are blocked for a long time, people begin to search for a way to satisfy them. We present three levels of grouped coping methods: (1) physiological, (2) behavioral, and (3) cognitive, demonstrating their interrelationship with orientation (to oneself or to the context), assessment (a threat or a challenge), and basic psychological needs. The proposed model opens up prospects for creating effective coping and training programs for sustainable development of the individual in crisis situations