scholarly journals Assessment of the quality of control of the ship “crosshair” under wind load conditions

2021 ◽  
Vol 2061 (1) ◽  
pp. 012080
Author(s):  
Yu I Yudin ◽  
S O Petrov

Abstract There are few ports in the Far North. Therefore, it is not difficult to assume that most of the cargo operations in the future will be implemented in the open part of the sea space of the Arctic regions. In this regard, the safe maneuvering of a tanker at the offshore oil terminal when carrying out cargo operations with hydrocarbon raw materials is one of the most important and urgent tasks. When performing this type of operation, the main threat to environmental safety is a rupture of the cargo line hose and damage to the underwater pipeline due to the tanker piling up on the oil terminal. Therefore, the improvement of the methods of controlling the movement of the tanker during its positioning at the oil terminal in the process of carrying out the operation of loading oil is significant. Improving tanker control technologies can contribute to improving the quality of control, reducing the likelihood of emergencies, and, as a result, increasing the safety of cargo operations when transshipping oil products in the open sea.

Author(s):  
I. A. Ilina ◽  
I. A. Machneva ◽  
E. S. Bakun

  The article is devoted to the study of the chemical composition, physical and thermal-pfysical characteristics of damp apple pomaces and the identifying patterns of influence of drying temperature the functional composition and gel-forming ability of pectin. The research is aimed at obtaining initial data for the subsequent calculation of the main technological, hydro-mechanical, thermal, structural and economic characteristics of devices for drying the plant raw materials, ensuring the environmental safety and high quality of pectin-containing raw materials, the reducing heat and energy costs. As a result of the study of the thermal characteristics of apple pomaces, the critical points (temperature conductivity – 16.5 x 10-8 m2/s, thermal conductivity – 0.28 W/m K, heat capacity – 1627 j/(kg K)) at a humidity of 56 % are determined, which characterizing the transition from the extraction of weakly bound moisture to the extraction of moisture with strong bonds (colloidal, adsorption). It was found that the pomaces obtained from apples of late ripening have a higher content of solids (21-23 %), soluble pectin and protopectin (2.5-4.5 %). Dried pomaces obtained from apple varieties of late ripening contain up to 25 % pectin, which allow us to recommend them as a source of raw materials for the production of pectin. The optimum modes of preliminary washing of raw materials are offered, allowing to the remove the ballast substances as much as possible. It is established that when the drying temperature increases, the destructive processes are catalyzed: the strength of the pectin jelly and the uronide component and the degree of pectin esterification are reduced. The optimum drying temperature of damp apple pomaces is 80 0C, at which the quality of pectin extracted from the dried raw materials is maintained as much as possible. It is shown that the most effective for the pectin production is a fraction with a particle size of 3-5 mm, which allow us to extract up to 71 % of pectin from raw materials.


2018 ◽  
Vol 7 (3.14) ◽  
pp. 369 ◽  
Author(s):  
Lyubov Vasilievna Larchenko ◽  
Roman Aleksandrovich Kolesnikov

In recent years, a new market trading in cryptocurrencies and instruments based on them has been formed. The market of This paper The goal of the study is to analyze the degree of differentiation of the Arctic regions of Russia by the key indicators of socioeconomic development, dependence of their economic development on the raw materials industries, which should be accounted to shape an efficient regional policy by the state and achieve the strategic goals for the reclamation and development of the Russian Arctic zone. The methodology of the study is based on a systematic approach to assessing the socioeconomic and sectoral differentiation of the Arctic regions of Russia. A set of general scientific and special research methods was used. The conducted analysis indicates that all the Arctic regions under study have a narrow raw materials nature of the economy, the sectoral structure is poorly differentiated. The policy of equalizing the per capita income and the cost of living in the Arctic regions with other regions of Russia largely determined the outflow of population from the northern regions. The state regional policy in relation to the Arctic regions should take into account their heterogeneity in order to achieve the results outlined in the strategic documents. 


Polar Record ◽  
2011 ◽  
Vol 48 (1) ◽  
pp. 39-47 ◽  
Author(s):  
Jesper Abildgaard Larsen ◽  
Jens Dalsgaard Nielsen ◽  
Hans Peter Mortensen ◽  
Ulrik Wilken Rasmussen ◽  
Troels Laursen ◽  
...  

ABSTRACTDue to the increased melting season in the arctic regions, especially in the seas surrounding Greenland, there has been an increased interest in utilising these waterways, both as an efficient transport route and an attractive leisure destination. However, with heavier traffic comes an increased risk of accidents. Due to the immense size and poor infrastructure of Greenland, it is not feasible to deploy ground based ship monitoring stations throughout the Greenland coastline. Thus the only feasible solution is to perform such surveillance from space. In this paper it is shown how it is possible to receive transmissions from the Automatic Identification System (AIS) from space and the quality of the received AIS signal is analysed. To validate the proposed theory, a field study, utilising a prototype of AAUSAT3, the third satellite from Aalborg University, was performed using a stratospheric balloon flight in the northern part of Sweden and Finland during the autumn of 2009. The analysis finds that, assuming a similar ship distribution as in the Barents Sea, it is feasible to monitor the ship traffic around Greenland from space with a satisfactory result.


2009 ◽  
Vol 2009 ◽  
pp. 1-4 ◽  
Author(s):  
J. D. M. Speed ◽  
R. van der Wal ◽  
S. J. Woodin

Mosses are an important component of high latitude ecosystems, contributing the majority of the plant biomass in many communities. In Arctic regions mosses also form a substantial part of the diet of many herbivore species. This may reflect either the availability of moss or its quality as forage. Here we test whether the nitrogen concentration and forage quality of the mossRacomitrium lanuginosumincrease with latitude and discuss the findings with reference to herbivore utilisation of moss in the Arctic. In contrast to vascular plants, moss nitrogen concentration significantly decreased with latitude (P<.01), in line with estimates of N deposition at the sampling sites. In addition, no evidence of an increase in nutritional quality of moss with latitude was observed; thus, this study suggests that the utilisation of moss by herbivores in arctic ecosystems maybe a function of their relatively high biomass rather than their quality as forage.


2019 ◽  
Vol 10 (2) ◽  
pp. 182-195
Author(s):  
K. N. Glazov

Purpose: the main goal is to simulate a process-oriented system for ensuring the quality of medical services in health care facilities in the Arctic zone of the Russian Federation. To achieve this goal, the following tasks were solved: formulated the main aspects of process-oriented quality assurance services in health care; a model was built for the implementation of a process-oriented system for ensuring the quality of services in the conditions of the Arctic territories; developed guidelines for the practical implementation of a process-oriented system to ensure the quality of medical services in the Arctic regions of the Russian Federation.Methods: this article is based on an interdisciplinary concept of ensuring the quality of medical services provided in relation to the specifics of the functioning and development of treatment-and-prophylactic organizations based on a process-oriented approach.Results: the most important direction of development of the national economy is to ensure an adequate level of quality of medical services provided in health care organizations and in the formation of patient-oriented service for end users (patients), which is especially important for the Arctic zone of the Russian Federation. The article analyzes foreign sources regarding the use of a process-oriented approach to the issues of ensuring the quality of medical services provided. Also in this publication a model of process-oriented quality assurance of medical services in the conditions of the Arctic territories of the Russian Federation is formed. Practical recommendations for the effective use of process-oriented mechanisms ensuring the quality of medical services in the Arctic regions of the Russian Federation have been developed.Conclusions and Relevance: the materials presented in the article show the special role of the health care system in social and economic processes. The proposed model of ensuring the quality of medical services is recommended for use not only in the represented region, it could be effective for all organizations in the field of health care, regardless of the form of ownership and organizational-legal form, as well as territorial location. Research conducted in this article represents the development of scientific ideas about modern technologies to ensure the quality of medical services in a regional perspective. The practical application of its results will improve the procedures for managing the quality of services, organizing business processes of basic medical activities, including the production of medical services, as well as their service characteristics in relation to healthcare, taking into account current economic and social trends, and as a result ensure their sustainable development.


2019 ◽  
pp. 116-123
Author(s):  
Veronika Pobedonostseva ◽  
Galina Pobedonostseva

The basic principles and development priorities of the Arctic zone of the Russian Federation and the impact on some of them of the global growth factor of the world population are considered. The analysis of the rating of the quality of life of the population of the Russian Arctic regions. It lags behind the rating of the level of economic development of these regions.


2019 ◽  
Vol 19 (3) ◽  
pp. 123-128
Author(s):  
ER Morozova ◽  
AP Turova

Researchers at the Seismological Laboratory of the Institute of Geodynamics and Geology of the Federal Center for Integrated Arctic Research of the Russian Academy of Sciences (FCIARctic) have been engaged in the seismological monitoring of the European Arctic sector since 2011. In this paper, we present a comparative assessment of the earthquakes spatial distribution in this region based on the data from the International Seismological Centre (ISC) and the FCIARctic’s Arkhangelsk Seismic Network (ASN) obtained in 2012–2016. The paper presents the waveforms of earthquakes occurred at the Gakkel Ridge and the Svalbard archipelago processed with the use of a Russian software package WSG (Windows Seismic Grafer) recommended by the Unified Geophysical Service of the Russian Academy of Sciences. A standard 4–8 Hz bandpass filter was used for the processing of regional Arctic earthquakes. The impact of seasonal variations on the quality of earthquakes registration was analysed based on the seismograms recorded by the ASN’s island-based Arctic stations from 2012 to 2014 The same analysis was done for the central broadband sensor SPA0 of the Norwegian NORSAR-owned SPITS group installed at the Svalbard archipelago. A correlation has been established between the number of earthquakes recorded by the ASN’s island Arctic stations and SPA0 station. The number of regional earthquakes, recorded by ASN’s island Arctic stations is is smaller in summer-autumn periods than in winter periods. Forthe SPA0 station, which is part of SPITS group, there is not seasonality in the number of registered earthquakes. Generally, earthquakes are recorded uniformly, exception on January. This might be due to the increased seismic activity in the Svalbard archipelago during that period.


2020 ◽  
Author(s):  
I.G. Spiridonov ◽  
E.N. Levchenko ◽  
D.S. Klyucharev

This paper assesses the main types of environmental impact caused by mineral exploration and mining. The ecological situation due to the extraction and processing of mineral raw materials in the mining regions, as well as the environmental impact of accumulated mining waste are shown. The results of environmental monitoring of the quality of the industrial urban environments of the Russian Federation are also presented. Based on the analysis of the database of existing man-made formations, including those produced from the rare metal deposits, the maps of their distribution over the territory of Russia as a whole and the territory of the Ural Federal District are compiled. The ranking of man-made deposits and formations by their impact on environmental elements has been performed. Keywords: mining, industrial waste, heavy metals, ecosystem pollution, environmental safety


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