scholarly journals Development of the software and hardware component of the geographic information system for monitoring the environmental friendliness of the airspace

Author(s):  
A. Yu. Hejlo ◽  
I. A. Khaustov ◽  
S. S. Rylev

The article deals with the actual problem of air pollution by man-made products that have a negative impact on the environment and pose a threat to the further development of mankind and its existence. One of the tasks in solving this problem is timely, reliable and operational control of pollution of the surrounding air space. Traditional means of control tend to have serious limitations in their application over hard-to-reach areas. In addition, the main drawbacks of the currently existing environmental monitoring systems capable of sampling in hard-to-reach areas of airspace are the large mass and low wind resistance of sampling structures. The paper deals with an unmanned aerial system, a distinctive feature of which is the use of automated samplers with small dimensions and weight. The design features of the used samplers and a set of technical means for controlling an unmanned aerial device in different modes are considered.

Author(s):  
Radjabova Gulnoza Guyosiddinovna ◽  

This article focuses on the experience with the online learning of undergraduate students of Uzbek State World Languages University. The aim of the article is to reveal whether online eduaction has positive or negative impact on the achievements of undergraduate students; and what should be done to make it successful and engaging. Data were collected through the students’ achievents on the basis of two courses. Moreover, online surveys were done to investigate how the learners evaluate their experience regarding online learning. The results of the experiment have shown that the absense of real interactions between learners and teacher complicated the challenge of understanding the content of courses. The results point out that further development of the course design and assessment strategies are necessary.


Author(s):  
I. E. Mazina ◽  
A. A. Stel’makhov ◽  
L. F. Mullagalieva

Underground mining of coal deposits has a negative impact on all components of the environment. When developing a coal deposit, it is coal mining technology that determines the scale and consequences of the negative impact. Changes in the stress-strain state of the geo-environment can lead to a violation of the hydrological regime, increased gas emission from the host rocks, the initiation of gas-dynamic processes. Choice of roofing management technology - as a geotechnological method of natural and technical system management determines the environmental friendliness of coal mining and creates safety conditions. The article deals with the technology of roofing control during coal production. For this purpose mathematical modeling and analysis of stress-strain state of the bottomhole part of the coal bed for the conditions of S.M. Kirov is performed. As a result of modeling, two technologies of roof control were analyzed - complete caving and stowing. For the worked out clearing leaves filled with either caving rocks or stowing material, there are characteristic unloading zones in the massif to be worked and overworked, as well as pressure reference zones, which fall on the parts of the pillars associated with the lava. It was found out that the application of the stowing technology creates conditions for minimization of gravitational stresses in the geoenvironment, as well as significantly reduces the potential energy of form change.


2020 ◽  
Vol 97 (1) ◽  
pp. 58-69
Author(s):  
P.S. Nosov ◽  
◽  
I.V. Palamarchuk ◽  
S.M. Zinchenko ◽  
Ya.A. Nahrybelnyi ◽  
...  

The article discusses the issues of identification of models of analysis of the navigational situation by the navigator during the passage in narrow places and port areas; this is especially relevant in critical situations. As part of the research, an analysis of literary sources was carried out, which made it possible to characterize this direction as actual for the development of special means of an experimental nature. As the main goal, the article presents formal-logical approaches to the development of software and hardware means for determining the areas of attention of the navigator as a subject of an ergatic system. A mechanism was determined for the formation the indexes of the analytical activities of the navigator during assessing the situation, mathematical models, and means for clarifying the position of the navigator on the navigation bridge. A geometric approximation of indexes was proposed, the metric of which can significantly reduce the identification time of critical situations and prevent negative consequences. The carried experiments by using the certified navigation simulator Navi Trainer 5000 confirmed the effectiveness and practical value of the proposed approaches, which will greatly improve the retraining of marine crew.


2021 ◽  
Vol 251 ◽  
pp. 03020
Author(s):  
Sergey Gorbunov ◽  
Ernst Hellbär ◽  
Gian Michele Innocenti ◽  
Marian Ivanov ◽  
Maja Kabus ◽  
...  

The Time Projection Chamber (TPC) of the ALICE experiment at the CERN LHC was upgraded for Run 3 and Run 4. Readout chambers based on Gas Electron Multiplier (GEM) technology and a new readout scheme allow continuous data taking at the highest interaction rates expected in Pb-Pb collisions. Due to the absence of a gating grid system, a significant amount of ions created in the multiplication region is expected to enter the TPC drift volume and distort the uniform electric field that guides the electrons to the readout pads. Analytical calculations were considered to correct for space-charge distortion fluctuations but they proved to be too slow for the calibration and reconstruction workflow in Run 3. In this paper, we discuss a novel strategy developed by the ALICE Collaboration to perform distortion-fluctuation corrections with machine learning and convolutional neural network techniques. The results of preliminary studies are shown and the prospects for further development and optimization are also discussed.


2021 ◽  
Vol 5 (520) ◽  
pp. 241-245
Author(s):  
V. О. Martynenko ◽  

The axiom of present is that Ukraine has a very difficult situation in the sphere of hotel and restaurant business caused by the COVID-19 pandemic. This situation has developed not only due to the underdevelopment of this sphere, also because of the significant shortcomings in the system of the State regulation of entrepreneurial activity in the pandemic, which makes this issue a topical scientific problem. The publication is aimed at analyzing the extant status of operation of the hotel and restaurant business under quarantine restrictions, as well as developing proposals for providing the State support to business entities in order to minimize losses during the COVID-19 pandemic. Theoretical and methodological grounds of research are the basic principles of development of hotel and restaurant business in a crisis, scientific works of Ukrainian scholars. The following methods were used in the course of the research: logical-juristic (to analyze the legislation of Ukraine on measures of the State support for business entities in connection with the COVID-19 pandemic); systematization (defining forms of the State aid); hypotheses and assumptions (in the preparation of proposals for further regulation of the provision of the State support to the hotel and restaurant business). As a result of the research, it is determined that the introduced support measures on the part of the State allowed to reduce the negative impact of the COVID-19 pandemic on the hotel and restaurant sector for the short-term period only. Renewal and further development of this sphere is impossible without the introduction of new approaches to the relations between the State and business, which have established determined in Ukrainian society, without increasing the social consciousness of business and increasing the level of its contact with public authorities. To achieve this goal, it is necessary to improve the system of adjustment of efforts of the State authorities, local self-government bodies and business entities in this sphere.


Processes ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 149 ◽  
Author(s):  
Kuan Shiong Khoo ◽  
Hui Yi Leong ◽  
Kit Wayne Chew ◽  
Jun-Wei Lim ◽  
Tau Chuan Ling ◽  
...  

A well-known bioseparation technique namely liquid biphasic system (LBS) has attracted many researchers’ interest for being an alternative bioseparation technology for various kinds of biomolecules. The present review begins with an in-depth discussion on the fundamental principle of LBS and this is followed by the discussion on further development of various phase-forming components in LBS. Additionally, the implementation of various advance technologies to the LBS that is beneficial towards the efficiency of LBS for the extraction, separation, and purification of biomolecules was discussed. The key parameters affecting the LBS were presented and evaluated. Moreover, future prospect and challenges were highlighted to be a useful guide for future development of LBS. The efforts presented in this review will provide an insight for future researches in liquid-liquid separation techniques.


2019 ◽  
Vol 91 ◽  
pp. 08048
Author(s):  
Natalia Shchepkina ◽  
Maiya Kramchaninova

Some current trends and prospects of the world construction industry development from environmental economics position are presented in article. The increased role of innovations and their influence on the competitiveness of construction company in the context of economic, social and ecological components is analyzed. Reduction of some negative impact of all the types of technological processes of construction on the environment is connected with the growth of innovative opportunities. This research proves the need of overcoming technical and technological lag for the development of the construction industry by the means of introduction of business processes management instruments. Justification of reengineering as an effective way of transformation of the technology of construction production is made. The algorithm of stage-by-stage reengineering of business processes, offered in the article is the instrument of effective introduction of technological innovations in the construction companies according to current ecological requirements.


2020 ◽  
Author(s):  
Stefaan Poedts

<p>The goal of the ESA project "Virtual Space Weather Modelling Centre - Part 3" (2019-2021) is to further develop the Virtual Space Weather Modelling Centre (VSWMC), building on the Part 2 prototype system and focusing on the interaction with the ESA SSA SWE system. A first, limited version went operational in May 2019 under the H-ESC umbrella on the ESA SSA SWE Portal. The objective and scopes of this new project include: the efficient integration of <strong>new models</strong> and <strong>new model couplings</strong>, including daily automated<strong> end-to-end (Sun to Earth) simulations, </strong>the further development and wider use of the <strong>coupling toolkit</strong>  and <strong>front-end GUI, </strong>making the <strong>operational system more robust and user-friendly.</strong> The VSWMC-Part 3 project started on 1 October 2019.</p><p>EUHFORIA (‘European heliospheric forecasting information asset’) is integrated in the VSWMC and will be upgraded with alternative coronal models (Multi-VP and Wind-Predict) and flux-rope CME models, and new couplings will be made available, e.g. to more advanced magnetospheric models and radiation belt models, geo-effects models, and even SEP models. The first results will be discussed and put into perspective.</p>


2013 ◽  
Vol 5 (1) ◽  
pp. 23-27
Author(s):  
Paula Bajdor

Abstract Today, operating on the market, enterprises, to a lesser or greater extent, try to carry out their activities in such a way to minimize the possible negative impact on the environment. In most companies, the analysis of its supply chains can identify them as "green supply chains", which primarily involves not harming the natural environment. However, the further development of this concept is "sustainable supply chain", the chain that means not only protection of the environment but also means caring for the closest social environment together with economic development of the company. As opposed to green supply chains, it is still difficult to identify a sustainable supply chain in Polish enterprises. For the research purpose, the interview sheet has been created, based on the answers provided by the companies it is possible to further identify and determine the elements that make up a sustainable supply chain. This article presents an interview sheet with the answers given by one of the companies investigated


Author(s):  
Gabriel Thomas

Having offered a computer vision course as a 4th year undergraduate elective for almost a decade now prompt me to re-evaluate it, not just with the idea of adding new trends seen at international symposia on a yearly basis but evaluating the course taking into consideration what can be seen as needed outside academia and within academia as a preparation for industry jobs and further studies and research. Thus, this paper suggests the different topics that such a course must cover in order to have a strong background on the necessary steps needed to successfully implement a computer vision system. A discussion regarding software and hardware tools involves what I perceive to be an importance towards covering computer vision based on mobile devices.


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