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Number of results: 205
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Abstract

The poor energy situation in most African countries manifests itself in very low access to energy and high energy poverty. To address these problems, and drive towards achieving universal energy access, African nations have, in recent time, directed attention to governance issues in energy resource development through building relevant institutions, strengthening legal frameworks, designing policies, ensuring cooperation, and harnessing investments. The concern for a governance approach to energy development is partly due to the submission that the core reason for poor energy delivery is ineffective energy governance. This study is based on Southern Africa and intends to examine the current energy access situation and explore the existing energy governance initiatives. The study used three measures of energy access (national, rural and urban) and energy consumption in order to examine the existing energy situation. The governance actions were examined by looking at national energy policies, energy partnerships (private sector, development partners), and sub-regional power pools. The study observes that the generally poor energy situation in Africa is evident in the Southern African countries. Governance actions are found to be multisource and multilevel. While these actions confirm the seriousness of the stakeholders in addressing the poor energy situation; results have been minimal. Thus, there is a need for more vigorous efforts in implementing the energy policies, engaging the private sector and creating productive cooperation among energy delivery stakeholders.
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Authors and Affiliations

Yekeen Adeeyo Sanusi
1
ORCID: ORCID
Chukwudi Bernhard Ohadugha
2
Valda Itunu Martins
2
Sheriffdeen Akande Olaide
1

  1. Urban and Regional Planning, Federal University of Technology, Minna, Nigeria
  2. Federal University of Technology, Minna, Nigeria
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Abstract

This article critically evaluates the summary procedure introduced by Protocol No. 14 to the European Convention on Human Rights, adopted within the reform of the European Court of Human Rights system. The summary procedure, now set out in Art. 28(1)b of the Convention, was instituted in order to facilitate expediency and to reduce the case load of the Court. This article argues that while judicial economy is a legitimate goal, the summary procedure under Art. 28(1)b has considerable deficiencies that undermine some of the systemic goals and core values of ECHR law. There is a manifest lack of remedies vis-à-vis the choice of the procedure, choice of applicable law, and no appeals against final decisions rendered in the course of the summary procedure. Notably, the concept of “well-established case-law” seems to be neither clear nor reliable, as evidenced in the cases analysed in the article. These cases, which involve the issue of socially- owned property in Serbia, serve to demonstrate some of the significant errors in interpretation and decision-making which can result from application of the summary procedure.

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Authors and Affiliations

Sanja Djajić
Rodoljub Etinski
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Abstract

In its history, Poland was usually more oriented to land than to the sea. For many centuries we have not been able to see the opportunities and potential created by the coastal location of our country. In the current strategic documents in Poland, there are also no proper references to the maritime security of the state, although we are a member of both NATO and the European Union. The article presents the creation process in 2015–2017 and the content of a unique document devoted to this issue: Poland’s Strategic Concept for Maritime Security, which was born thanks to the efforts of “enthusiasts” of maritime affairs from the Naval Academy, Shipbuilding Council and the Institute of General Józef Haller under the leadership of the National Security Bureau. In the authors opinion, the document is to form the basis for work on the future maritime security strategy of our country, and also become the “engine” of public discussion in Poland on maritime security issues and the effective use of the coastal position of the state for economic development.

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Authors and Affiliations

Andrzej Makowski
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Abstract

Artykuł poświęcony jest zjawisku porzucania marynarzy przez ich pracodawców morskich. Kwestia ta od kilku lat jest przedmiotem zainteresowania dwóch organizacji międzynarodowych: Międzynarodowej Organizacji Pracy (ILO) i Międzynarodowej Organizacji Morskiej (IMO). Wydały one w tej materii wspólne wytyczne - ponieważ nie mają one jednak charakteru wiążącego, armatorzy nadal naruszają prawa marynarzy. Spektakularnym przykładem takiego naruszenia jest przedstawiona w artykule sprawa statku “Olga J ”. Przypadek ten jest charakterystyczny dla współczesnej żeglugi, gdyż statek był własnością spółki zarejestrowanej w Belize, czarterowany był przez armatora cypryjskiego, a podnosił banderę Hondurasu. Załoga międzynarodowa: kapitan Grek, marynarze z Ghany, Wysp Zielonego Przylądka i Senegalu. Statek zatrzymany w bułgarskim porcie Burgas, początkowo przez PSC, następnie aresztowany przez władze bułgarskie. Kapitan porzucił załogę, zostawiając ją bez środków do życia, doszło do incydentów z władzami bułgarskimi. Członkowie załogi przez kilka lat starali się o pomoc w różnych organizacjach, w tym w związkach zawodowych. Wreszcie próbowali wykorzystać przepisy o ochronie praw człowieka. Autor przedstawia reperkusje prawne z tym związane.

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Authors and Affiliations

Patrick Chaumette

Abstract

We study an elegant snap system with only one nonlinear term, which is a quadratic nonlinearity. The snap systemdisplays chaotic attractors,which are controlled easily by changing a system parameter. By using analysis, simulations and a real circuit, the dynamics of such a snap system has been investigated. We also investigate backstepping based adaptive control schemes for the new snap system with unknown parameters.

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Abstract

The geodetic law defines fundamentals of the prospective land information system. Construction of an information system may be based upon difTerent designing assumptions. The purpose of this article is to outline the problems connected with the construction of information systems and presentation of the basis of land information systems designing using object bases. The article presents the elementary characteristics of systems currently in use and the advantages of object solutions. The suggested application of object bases to the construction of land information systems will be backed up by simple examples connected with the construction of an object model.
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Authors and Affiliations

Elżbieta Lewandowicz
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Abstract

In last years, accurate spatial data from high resolution satellite images are getting more and more frequently used for modelling topography and other surveying purposes. To extract accurate spatial information, a sensor's mathematical models are needed. Those models classified to two branches: rigorous (parameirical or physical) models and non-rigorous models. In the paper a dynamic sensor model is proposed to extract spatial information from geo-rectified images named the geo-images which their geometry at the time of imaging have been lost. The developed model has been reconstructed basing on a transformation of central-perspective projection into a parallel one.
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Authors and Affiliations

Luong Chinh Ke
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Abstract

On 16 July 2019, another significant amendment to the provisions of the Act on the transformation of the right of perpetual usufruct to land built-up for residential purposes into the ownership title to that land was introduced. The purpose of this research paper is to analyse the influence of the amendments to the regulations on the scope of the real properties subject to the transformation of perpetual usufruct into ownership, to identify the problems and to assess the status of the implementation of the transformation process in practice. The conducted research has resulted in the presentation of the structure of land on the example of a selected city, in particular with reference to real estate let into perpetual usufruct for residential purposes. The author has also determined the status of the implementation of the transformation process in practice as well as the problems hindering the issuance of certificates for all transformed properties within the statutory period. The progress of the transformation process in a given area depends, inter alia, on the scope of real properties subject to this transformation, the requirement to perform additional analyses, including those regarding non-compliance of the legal and factual state of the property, and the assessment of the existence of public aid and related payments. This study is a continuation of the earlier research, extended by the effects of the regulations introduced in July 2019, as well as by the assessment of the progress in the transformation process in practice.

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Authors and Affiliations

Anna Trembecka
ORCID: ORCID
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Abstract

This paper addresses the issue of the historical development of for fear (that) in English – a prepositional subordinator ushering in fi nite clauses of purpose in which negation is inherently coded, i.e. the content of the subordinate clause is negated by the complementiser which does not contain a negative particle in itself. The rise of this construction is studied within the theory of grammaticalization and it turns out to be a regular case of grammaticalization following the mechanisms of grammaticalization such as desemanticisation, extension and decategorialisation.

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Authors and Affiliations

Andrzej M. Łęcki
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Abstract

The present article demonstrates that languages tend to contain dispersals – a subtype of conative calls used to chase animals – that are built around voiceless sibilants. This tendency is both quantitative (i.e., voiceless-sibilant dispersals are common across languages and in a single language) and qualitative (i.e., sibilants contribute very significantly to the phonetic substance of such dispersals). This fact, together with a range of formal similarities exhibited by voiceless-sibilant dispersals encapsulated by the pattern [kI/Uʃ] suggests that the presence of voiceless sibilants in dispersals is not arbitrary. Overall, voiceless-sibilant dispersals tend to comply with the general phonetic profile associated with the prototype of CACs and dispersals, postulated recently in scholarship, thus corroborating the validity of this prototype.
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Authors and Affiliations

Alexander Andrason
1 2

  1. Living Tongues Institute for Endangered Languages (Salem, USA)
  2. University of Cape Town (South Africa)
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Abstract

This paper argues that it is the causative structuration of the motion situation that seems to be the crucial factor determining the status of intransitive verbs of locomotion and their potential to enter into a certain set of syntactical configurations. More specifically, the paper attempts to provide arguments against the commonly held view that locomotion verbs in directed motion constructions are unaccusative (this applies to both intransitive structures and transitive causative structures). If the subject argument of an intransitive manner of locomotion verb displays reduced agentivity (i.e. if it displays properties of both an agent and a patient), it is not admitted into transitive causative structures, in spite of the alleged unaccusativity of verbs that are admitted into them. The inability of path verbs to causativize is explained by appealing to the fact that these types of verbs render motion as not forming part of an energetic (i.e. a causal) chain. Related to this is the fact that the subject argument of these verbs falls outside the agent vs. patient classifi cation, which is commonly claimed to be directly related to the verb’s unergative vs. the unaccusative status, respectively.

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Authors and Affiliations

Naděžda Kudrnáčová
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Abstract

This paper draws on an anthropological perspective on social security to explore the complex ways in which Czech- and Slovak-speaking migrants living in Glasgow negotiated their healthcare concerns and built security in the city and beyond. It is based on 12 months of ethnographic research conducted in 2012 with migrants who moved to Glasgow after 2004. Inquiring into healthcare issues and the re-sulting insecurities from the migrants’ perspective and in their everyday lives, the paper demonstrates how these issues were largely informed by migrants’ experiences of ‘uncaring care’ in Glasgow, rather than due to their lack of knowledge or understanding of the Scottish/UK health system. Furthermore, the findings reveal how these migrants drew on multiple resources and forms of support and care – both locally and transnationally – in order to mitigate and overcome their health problems. At the same time, the analysis also highlights constraints and limitations to the actors’ care negotiations, thus going be-yond a functional approach to social security, which tends to overlook instances of ‘unsuccessful’ or unrealised care arrangements. In conclusion, I propose that migrants’ care negotiations can be best understood as an ongoing process of exploring potentialities of care by actively and creatively opening up, probing, rearranging and trying out sources of support and care in their efforts to deal with per-ceived risks and insecurities in their everyday lives.

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Authors and Affiliations

Taulant Guma
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Abstract

Ukraine has been going through a series of political and economic crises, notably the Euromaidan revolution and the Russian aggression and subsequent economic downturn. These events triggered fresh transnational diaspora-led activities such as the ‘London Euromaidan’ and the ‘Warsaw Euromaidan’. This paper analyses Ukrainian diaspora volunteerism in the UK and Poland and explores how the Ukrainian diaspora engages and contributes economically, socially, politically and culturally to the development of Ukraine. Drawing on fieldwork in both countries, three main findings were identified. First, due to the events in Ukraine, the Ukrainian diaspora has mobilised, grown stronger and became more united, whilst transforming from a more inward-looking to a more outward-looking community which, as a result, is now more and critically engaging with Ukrainian affairs. Second, the Ukrainian diaspora has the willingness, power and resources to contribute to the development of the home country, claiming to be recognised as an important stakeholder in the development of Ukraine. Thirdly, the Ukrainian government’s lack of recognition of the contribution of the Ukrainian diaspora is one of the most significant barriers to more comprehensive diaspora involvement in development.

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Authors and Affiliations

Iryna Lapshyna
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Abstract

In early 2021, over 5 million European Union (EU) citizens had applied for settled status to secure their right to continue to live, work and study in the United Kingdom (UK) after the country’s withdrawal from the EU (Brexit). In 2018, the Home Office launched a Statement of Intent to implement an application process for EU citizens through its EU Settlement Scheme. In the period leading up to Brexit, the UK gov-ernment assured EU migrants that their existing rights under EU law would remain essentially un-changed and that applying for settled status would be smooth, transparent and simple. However, the application process has resulted in some long-term residents failing to obtain settled status, despite providing the required information. Based on qualitative in-depth interviews with 20 EU migrants living in two major metropolitan areas in Northern England, this article discusses the significant barriers which EU citizens face in the application process. This situation particularly affects the most vulnerable EU mi-grants with limited English-language skills and/or low literacy levels as well as those who are digitally excluded. The study contributes to the growing body of research on the consequences of Brexit for vulner-able EU migrants in the UK, focusing specifically on Central and Eastern European migrants.
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Authors and Affiliations

Sanna Elfving
1
ORCID: ORCID
Aleksandra Marcinkowska
1
ORCID: ORCID

  1. University of Bradford, the UK
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Abstract

In result of a lew years' investigations or silting of small water reservoirs located in South Poland, intensity ofthe silting process as well as the granulometrie and chemical composition ofbottorn sediments were evaluated. The content of heavy metals i.e. copper, lead and cadmium was determined in samples collected in various parts or five small water reservoirs. The content of heavy metals was appraised according to the regulation of the Minister of Environment, according to the criteria or Polish Geological Institute, of Inspection lor Environmental Protection, of Institute of Soil Science and Plant Cultivation, and according to the Muller's method. The obtained results or determination of the examined heavy metals concentrations were compared with the values or reservoir and river sediment concentrations determined by other authors in Europe. Appraisal or sill quality, respectively to the adopted criteria, showed only an insignificant degree of pollution. Concentrations ofmicroclemcnts do not exceed the toxic concentrations for soils and environment bul may have a harmful influence on living organisms. Recording of changes or heavy metal pollution during many years' operation or small water reservoirs, considering changes occurring in the basins, requires continuation of investigations. It will enable to record changes or pollution during a longer period or operation or reservoirs, also against the background 01· changes occurring in river basins.
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Authors and Affiliations

Bogusłąw Michalec
Marek Tarnawski
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Abstract

The aim of this study was to examine the possibility of use of synchronous culture of Chlorella vulgaris algae as a biotest in water quality control. In the experiment the samples of water collected from seven sampling points in Goczałkowice Reservoir were used. The criterion of changes was the concentration of photosynthetic pigments, from 24'" hour of the cell life cycle, separated by HPLC technique. On the basis of changes taking place in the cells of the algae cultures it was possible to establish the timing of the flood period and autumnal changes in a water quality. It was also proved that the water quality in the main water current that fall into the western part of reservoir carried by the Wisła River after the flood period significantly differed from the water quality in the other parts of the reservoir, particularly in its eastern section.
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Authors and Affiliations

Anna Czaplicka-Kotas
Joanna Lodowska
Adam Wilczok
Zbigniew Ślusarczyk
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Abstract

The potential applications of loop heat pipes (LHPs) are the nuclear power space systems, fuel cell thermal management systems, waste heat recovery systems, medium temperature electronic systems, medium temperature military systems, among others. Such applications usually operate in temperature ranges between 500–700 K, hence it is necessary to develop an LHP system that will meet this requirement. Such a thermal management device require to meet various technical problems and challenges currently existing in the development of LHP working in medium temperatures, including: (1) selection of appropriate working fluid; (2) selection of appropriate LHP construction material; (3) construction of suitable test rig capable of testing at elevated temperatures; (4) development of new testing methods. Currently, there are no proven working fluids that can be used in LHPs in medium temperature ranges. Water can be applicable only at temperatures up to 570 K. Caesium can be applicable at temperatures above 670 K. Organic fluids usually tend to generate non-condensable gasses and/or decompose at elevated temperatures and their viscosity dramatically increases. For halides, most of them are very reactive or toxic and their full property data are not available or the majority of the physical properties are predicted, also live tests and their environmental impact data are not adequate. As for casing/LHP construction material, there are no full chemical compatibility tables with most of the medium temperature working fluids and the reactivity of fluids significantly limits the potential materials. Also, testing such an LHP is an endeavour as the reactivity of medium temperature fluids and the use of obscure metals create new challenges. Altogether creates multiple challenges in the development, testing, handling and operating of LHP in the medium temperature range.
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Bibliography

[1] Zohuri B.: Heat Pipe Design and Technology. Modern Applications for Practical Thermal Management (2nd Edn.). Springer, 2016.
[2] Zhang Y. (Ed.): Heat Pipes: Design, Applications and Technology. Nova, 2018.
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[4] Anderson W.G., Rosenfeld J.H., Angirasa D., Mi Y.: Evaluation of heat pipe working fluids in the temperature range 450 to 700 K. AIP Conf. Proc. 699(2004), 20.
[5] Anderson W.G., Bienert W.: Loop heat pipe radiator trade study for the 300– 550 K temperature range. AIP Conf. Proc. 746(2005), 946.
[6] Anderson W.G.: Intermediate temperature fluids for heat pipes and loop heat pipes. In: Proc. 5th Int. Energy Conversion Engineering Conf. Exhib. (IECEC), 25–27 June 2007, AIAA 2007–4836.
[7] Faghri A., Buchko M., Cao Y.: A study of high-temperature heat pipes with multiple heat sources and sinks: Part I – Experimental methodology and frozen startup profiles. J. Heat Transf. 113(1991), 4, 1003–1009.
[8] Faghri A., Buchko M., Cao Y.: A study of high-temperature heat pipes with multiple heat sources and sinks: Part II – Analysis of continuum transient and steadystate experimental data with numerical predictions. J. Heat Transf. 113(1991), 4, 1010–1016.
[9] https://www.1-act.com/merit-number-and-fluid-selection/ (accessed 10 Sept. 2021).
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[11] Blauciak K., Szymanski P., Mikielewicz D.: The influence of loop heat pipe evaporator porous structure parameters and charge on its effectiveness for ethanol and water as working fluids. Materials 14(2021), 7029.
[12] Nikitkin M.N., Bienert W.B., Goncharov K.A.: Non condensable gases and loop heat pipe operation. SAE Tech. Pap. 981584. In: Proc. 28th Int. Conf. on Environmental Systems, 1998.
[13] Wrenn K.R., Wolf D., Kroliczek E.J.: Effect of non-condensible gas and evaporator mass on loop heat pipe performance. SAE Tech. Pap. 2000-01-2409. In: Proc. 30th Int. Conf. on Environmental Systems, 603–614, 2000.
[14] Ishikawa H., Ogushi T., Nomura T., Noda H., Kawasaki H., Yabe T.: Heat transfer characteristics of a reservoir embedded loop heat pipe (2nd report, influence of noncondensable gas on heat transfer characteristics). Heat Transf. Asian Res. 36(2007), 8, 459–473.
[15] Singh R., Akbarzadeh A., Mochizuki M.: Operational characteristics of the miniature loop heat pipe with non-condensable gases. Int. J. Heat Mass Tran. 53(2010), 17–18, 3471–3482.
[16] He J., Lin G., Bai L., Miao J., Zhang H.: Effect of non-condensable gas on the operation of a loop heat pipe. Int. J. Heat Mass Tran. 70(2014), 449–462.
[17] Prado-Montes P.: Development of an elevated temperature loop heat pipe for space applications and investigation of non-condensable gas impact on its performance. PhD thesis, Polytechnic University of Madrid, Madrid 2014.
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Authors and Affiliations

Paweł Szymański
1
Dariusz Mikielewicz
1

  1. Gdansk University of Technology, Faculty of Mechanical Engineering and Ship Technology, Narutowicza 11/12,80-233 Gdansk, Poland
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Abstract

Phenol degradation efficiency or Pscndontonas putida PCM2 l 53 free cel ls was experimentally studied. Bacterial cells were acclimatized to phenol what relied on gradually increasing the phenol concentration in the medium. The highest phenol degradation rate was calculated as approximately 15.2 mgdmŁh'. Investigated strain degraded the phenol at the concentration or 400 111g-d111·-' in 24 h. The result or toxicity analysis showed that acclimatized cells orP putida PCM2 l 53 arc able to survive even al as high concentration or phenol as 3000 rng.dm'. The obtained result suggests that the analyzed strain can be used lor cflcciivc treating of high strength phenolic wastewater. Due to resistance of the strain to high phenol concentration it may be applied in biorcmcdiation of exceedingly contaminated sites, especially where dilution or pollutants cannot be implemented.
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Authors and Affiliations

Grzegorz Przybyłek
Sławomir Ciesielski
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Abstract

Professor Paweł Rowiński, Vice-President of the PAS and a researcher at the PAS Institute of Geophysics, explains why rivers are such a fascinating subject of study and describes the innovative approach being taken to organizing the IAHR Congress in Poland.

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Authors and Affiliations

Paweł M. Rowiński
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Abstract

Time-lapse imagery allows us to witness, first-hand, how plants grow and heal, sway in cyclical motions, and even “dance” in reaction to various environmental factors.
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Authors and Affiliations

Urszula Zajączkowska
1

  1. Department of Forest Botany, Warsaw University of Life Sciences (SGGW)
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Abstract

The Bulletin of the Polish Academy of Sciences: Technical Sciences (Bull.Pol. Ac.: Tech.) is published bimonthly by the Division IV Engineering Sciences of the Polish Academy of Sciences, since the beginning of the existence of the PAS in 1952. The journal is peer‐reviewed and is published both in printed and electronic form. It is established for the publication of original high quality papers from multidisciplinary Engineering sciences with the following topics preferred: Artificial and Computational Intelligence, Biomedical Engineering and Biotechnology, Civil Engineering, Control, Informatics and Robotics, Electronics, Telecommunication and Optoelectronics, Mechanical and Aeronautical Engineering, Thermodynamics, Material Science and Nanotechnology, Power Systems and Power Electronics.

Journal Metrics: JCR Impact Factor 2018: 1.361, 5 Year Impact Factor: 1.323, SCImago Journal Rank (SJR) 2017: 0.319, Source Normalized Impact per Paper (SNIP) 2017: 1.005, CiteScore 2017: 1.27, The Polish Ministry of Science and Higher Education 2017: 25 points.

Abbreviations/Acronym: Journal citation: Bull. Pol. Ac.: Tech., ISO: Bull. Pol. Acad. Sci.-Tech. Sci., JCR Abbrev: B POL ACAD SCI-TECH Acronym in the Editorial System: BPASTS.

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Authors and Affiliations

Jakub Ostałowski

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