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Abstract

In the Two Concepts of Rules (1955) John Rawls presents the following distinction between two concepts of rules governing human action: a rule as summary of past decisions versus a rule defining a practice. The latter concept was incorporated by John Searle (1964, 1969, 1991, 1995) as the key element of his ontology of social facts. For, according to Searle, a rule of such type is used to create a new practice or institution, and consequently, a new kind of conduct in the framework of such institution. Usually (but not always) a sentence expressing such a rule is a definition of special kind with an unexpected feature: what has been defined is a creation of the definition / of the author. The present paper is an attempt to reveal the essential contribution of Rawls to the early stage of development of Searle’s social ontology as well as an attempt to present its development from 1964 onward until the appearance of its full blooded version in 1995. Moreover, particular attention is devoted to the concept of Searle’s definition of institutional object. The special features of the definition indicate the need to distinguish a fourth concept of ‘definition’, a ‘creative definition’, over the three proposed by Kazimierz Ajdukiewicz in his Three concepts of definition (1958).
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Bibliography

Ajdukiewicz K. (1958a), Trzy pojęcia definicji, „Studia Filozoficzne” 5 (8), s. 3–16; również w: tenże, Język i poznanie, t. II, Warszawa: Państwowe Wydawnictwo Naukowe, 1965, s. 296–307.
Ajdukiewicz K. (1958b), Le problème du fondement des propositions analytiques, „Studia Logica” 8, s. 259–272; wyd. pol.: Zagadnienie uzasadniania zdań analitycznych, przeł. H. Mortimer, w: K. Ajdukiewicz, Język i poznanie, t. II, Warszawa: Państwowe Wydawnictwo Naukowe, 1965, s. 308–321.
Ajdukiewicz K. (1965), Język i poznanie, t. II, Warszawa: Państwowe Wydawnictwo Naukowe.
Anscombe G.E.M. (1958), On Brute Facts, „Analysis” 18, s. 69–72.
Friedman R.L. (2021), Peter Auriol, w: E.N. Zalta (red.), The Stanford Encyclopedia of Philosophy, Summer 2021 Edition, https://plato.stanford.edu/archives/sum2021/entries/auriol/
Grice H.P. (1975), Logic and Conversation, w: P. Cole, J.L. Morgan (red.), Syntax and Semantics, t. 3: Speech Acts, New York: Academic Press, s. 41–58; wyd. pol.: Logika a konwersacja, przeł. J. Wajszczuk, „Przegląd Humanistyczny” 21 (1977), nr 6 (141), s. 85–99; oraz Logika a konwersacja, przeł. B. Stanosz, w: B. Stanosz (red.), Język w świetle nauki, Warszawa: Czytelnik, 1980.
Lakoff G., Johnson M. (1980), Metaphors We Live By, Chicago – London: The University of Chicago Press; wyd. pol.: Metafory w naszym życiu, przeł. T.P. Krzeszowski, Warszawa: Państwowy Instytut Wydawniczy, 1988.
Levinson S.C. (2000), Presumptive Meanings: The Theory of Generalized Conversational Implicature, Cambridge, MA – London: The MIT Press.
Rawls J. (1955), Two Concepts of Rules, „The Philosophical Review” 64, s. 3–32.
Searle J.R. (1964), How to Derive „Ought” From „Is”, „The Philosophical Review” 73, s. 43–58.
Searle J.R. (1965), What Is a Speech Act?, w: M. Black (red.), Philosophy in America, Ithaca: Cornell University Press, London: Allen & Unwin, s. 221–239; częściowe wyd. pol.: Czym jest akt mowy?, przeł. H. Buczyńska‑Garewicz, „Pamiętnik Literacki” 1980, nr 2, s. 241–248.
Searle J.R. (1969), Speech Acts, Cambridge: Cambridge University Press; wyd. pol.: Czynności mowy, przeł. B. Chwedeńczuk, Warszawa: Instytut Wydawniczy Pax, 1987.
Searle J.R. (1991), Intentionalistic Explanations in the Social Sciences, „Philosophy of Social Sciences” 21, s. 332–344.
Searle J.R. (1995), The Construction of Social Reality, New York: Free Press.
Sperber D., Wilson D. (1986), Relevance: Communication and Cognition, Oxford: Blackwell Publishers; wyd. pol.: Relewancja. Komunikacja i poznanie, red. M. Jodłowiec, A. Piskorska, Kraków: Tertium, 2011.
Znamierowski Cz. (1921), O przedmiocie i fakcie społecznym, „Przegląd Filozoficzny” 24, s. 1–33.
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Authors and Affiliations

Marek Nowak
1
ORCID: ORCID

  1. Uniwersytet Łódzki, Instytut Filozofii, ul. Lindleya 3/5, 90‑131 Łódź
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Abstract

This article contributes to the growing literature on Art. 7 TEU by showcasing the strong and weak points of this provision in the context of the on-going rule of law backsliding in Hungary and Poland – backsliding which threatens the very fabric of EU constitutionalism. The article presents the general context of the EU’s institutional reactions to the so-called “reforms” in Poland and Hungary, which are aimed at hijacking the state machinery by the political parties in charge. Next it introduces the background of Art. 7 TEU and the hopes the provision was endowed with by its drafters before moving on to analysis of its scope and all the mechanisms made available through this instrument, including the key procedural rules governing their use. The author posits that it may be necessary to put our hopes in alternative instruments and policies to combat the current rule of law backsliding, and the article concludes by outlining three possible scenarios to reverse the backsliding, none of which are (necessarily) connected with Art. 7 as such.

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Authors and Affiliations

Dimitry Kochenov
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Abstract

The paper presents the results of assessment studies of the time course for technical wear in masonry buildings located in the area of mining-induced ground deformations. By using fuzzy inference system (FIS) and the “if-then” rule, corresponding language labels describing actual damage recorded in structure components were translated into scalar outputs describing the degree of damage to the building. Adopting this approach made it possible to separate damage resulting from additional effects coming from mining-induced ground deformations and the natural wear and tear of masonry structure. By using statistical analysis an exponential function for the condition of building damage and the function of natural wear and tear were developed. Both phenomena were subject to studies as a function of time regarding the technical age of building structure. The results obtained were used to develop a model for the course of technical wear of traditionally constructed buildings used within mining areas.

In the course of natural wear and tear buildings located in mining areas are additionally exposed to forced ground deformations. The increase of internal forces in structure components induced by those effects results in creating an additional stress factor and damage. The hairline cracks and cracks of building structure components take place when the intensity value of mining effects becomes higher than the component stress resistance and repeated effects result in the decrease of structure rigidity. The observations of building behaviour in mining areas show that the intensity of mining activity and the multiplicity of its effect play a substantial role in the course of technical wear of buildings. The studies show that the level of damage resulting from mining effects adds up to natural wear and tear of the building and impairs the global technical condition as compared to similar buildings used outside mining areas.

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Authors and Affiliations

Izabela Dorota Bryt-Nitarska
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Abstract

Developing novel methods, approaches and computational techniques is essential for solving efficiently more and more demanding up-to-date engineering problems. Designing durable, light and eco-friendly structures starts at the conceptual stage, where new efficient design and optimization tools need to be implemented. Nowadays, apart from the traditional gradient-based methods applied to optimal structural and material design, innovative techniques based on versatile heuristic concepts, like for example Cellular Automata, are implemented. Cellular Automata are built to represent mechanical systems where the special local update rules are implemented to mimic the performance of complex systems. This paper presents a novel concept of flexible Cellular Automata rules and their implementation into topology optimization process. Despite a few decades of development, topology optimization still remains one of the most important research fields within the area of structural and material design. One can notice novel ideas and formulations as well as new fields of their implementation. What stimulates that progress is that the researcher community continuously works on innovative and efficient topology optimization methods and algorithms. The proposed algorithm combined with an efficient analysis system ANSYS offers a fast convergence of the topology generation process and allows obtaining well-defined final topologies.
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Bibliography

  1.  M.P. Bendsoe, “Optimal shape design as a material distribution problem,” Struct. Optim., vol. 1, pp. 193–202, 1989.
  2.  O. Sigmund, “A 99 line topology optimization code written in MATLAB,” Struct. Multidiscip. Optim., vol. 21, pp. 120–127, 2001.
  3.  E. Andreassen, A. Clausen, M. Schvenels, B.S. Lazarov, and O. Sigmund, “Efficient topology optimization in Matlab using 88 lines of code,” Struct. Multidiscip. Optim., vol. 4, pp.  1–16, 2011.
  4.  K. Liu and A. Tovar, “An efficient 3D topology optimization code written in Matlab,” Struct. Multidiscip. Optim., vol.  50, pp. 1175–1196, 2014.
  5.  X.M. Xieand and G.P. Steven, Evolutionary Structural Optimization, Berlin: Springer, 1997.
  6.  Q.M. Querin, G.P. Steven, and Y.M. Xie, “Evolutionary structural optimization using a bi-directional algorithm,” Eng. Comput., vol. 15, pp. 1034–1048, 1998.
  7.  K. Nabaki, J. Shen, and X. Xuang, “Evolutionary topology optimization of continuum structures considering fatigue failure,” Mater. Des., vol. 166, pp.13, 2019.
  8.  C. Kane, F. Jouveand, and M. Schoenauer, “Structural topology optimization in linear and nonlinear elasticity using genetic algorithms” in Proc. 21st ASME Design Automatic Conference, 1995, pp.1‒8.
  9.  R. Balamurugan, C. Ramakrishnan, and N. Singh, “Performance evaluation of a two stage adaptive genetic algorithm in structural topology optimization,” Appl. Soft Comput., vol. 8, pp.  1607–1624, 2008.
  10.  H.S. Gebremedhen, D.E. Woldemichael, and F.M. Hashimi, “A firefly algorithm based hybrid method for structural topology optimization,” Adv. Model. Simul. Eng. Sci., vol. 7, no. 44, p. 20, 2020.
  11.  A.A. Jaafer, M. Al-Bazoon, and A.O. Dawood, “Structural topology design optimization using the binary bat algorithm,” Appl. Sci., vol. 10, no. 4, p. 1481, 2020.
  12.  D. Gaweł, M. Nowak, H. Hausa, and R. Roszak, “New biomimetic approach to the aircraft wing structural design based on aeroelastic analysis,” Bull. Pol. Acad. Sci. Tech. Sci., vol. 65, no. 5, pp. 741–750, 2017.
  13.  S.Y. Chang and S.K.Youn, “Material cloud method for topology optimization,” Numer. Methods Eng., vol. 65, pp.  1585–1607, 2006.
  14.  H.A. Eschenauer, V.V. Kobelevand, and A. Schumacher, “Bubble method for topology and shape optimization of structures,” Struct. Optim., vol. 8, pp. 42–51, 1993.
  15.  M.Y. Wang, X. Wang, and D. Guo, “A level set method for structural topology optimization,” Comput. Methods Appl. Mech. Eng., vol. 192, pp. 227–246, 2003.
  16.  P. Wei, Z. Li, X. Li, and M.Y. Wang, “An 88-line MATLAB code for the parameterized level set method based topology optimization using radial basis functions,” Struct. Multidiscip. Optim., vol. 58, pp. 831–849, 2018.
  17.  E. Biyikliand and A.C. To, “Proportional topology optimization: a new non-sensitivity method for solving stress constrained and minimum compliance problems and its implementation in Matlab,” PLoSONE, vol. 10, pp. 1–23, 2015.
  18.  Y. Xian and D.W. Rosen, “A new topology optimization approach based on Moving Morphable Components (MMC) and the ersatz material model,” Struct. Multidiscip. Optim., vol. 62, pp. 19–39, 2020.
  19.  B. Xing and W.J. Gao, Innovative computational intelligence: a rough guide to 134 clever algorithms, Switzerland: Springer, 2014.
  20.  T. Tarczewski, L.J. Niewiara, and L.M. Grzesiak, “Artificial bee colony based state feedback position controller for PMSM servo-drive–the efficiency analysis,” Bull. Pol. Acad. Sci. Tech. Sci., vol. 68, no. 5, pp. 997–1007, 2020.
  21.  Y. Li and X. Wang, “Improved dolphin swarm optimization algorithm based on information entropy,” Bull. Pol. Acad. Sci. Tech. Sci., vol. 67, no. 4, pp. 679–685, 2019.
  22.  A. Paszyńska, K. Jopek, M. Woźniak, and M. Paszyński, “Heuristic algorithm to predict the location of C 0 separators for efficient isogeometric analysis simulations with direct solvers,” Bull. Pol. Acad. Sci. Tech. Sci., vol. 66, no. 6, pp. 907–917, 2018.
  23.  J. Von Neumann, Theory of self-reproducing automata, Urbana IL: University of Illinois Press, 1966.
  24.  S. Ulam, “Random processes and transformations,” in Proc. International Congress of Mathematics, 1952, vol. 2, pp. 85–87.
  25.  B. Chopard and M. Droz, “Cellular automata model for the diffusion equation,” J. Stat. Phys., vol. 64, pp. 859–892, 1991.
  26.  J.P. Crutchfield and J.E. Hanson, “Turbulent pattern bases for cellular automata,” Physica D, vol. 69, pp. 279–301, 1993.
  27.  Y. Zhao, S.A. Billings, and D. Coca, “Cellular automata modelling of dendritic crystal growth based on Moore and von Neumann neighborhoods,” Int. J. Model. Identif. Control, vol.  2, no. 6, pp. 119–25, 2009.
  28.  P. Rosin, A. Adamatzky, and X. Sun (eds.), Cellular Automata in Image Processing and Geometry, Switzerland: Springer International Publishing, 2014.
  29.  N. Inou, N. Shimotai, and T. Uesugi, “A cellular automaton generating topological structures,” in Proc. 2nd European Conference on Smart Structures and Materials, 1994, vol. 2361, pp. 47–50.
  30.  N. Inou, T. Uesugi, A. Iwasaki, and S. Ujihashi, “Self-organization of mechanical structure by cellular automata,” Key Eng. Mater., vol. 145‒149, pp. 1115–1120, 1998.
  31.  E. Kita and T. Toyoda, “Structural design using cellular automata,” Struct. Multidiscip. Optim., vol. 19, pp. 64–73, 2000.
  32.  P. Hajela and B. Kim, “On the use of energy minimization for CA based analysis in elasticity,” Struct. Multidiscip. Optim., vol. 23, pp. 24–33, 2001.
  33.  B. Tatting and Z. Gurdal, “Cellular automata for design of two-dimensional continuum structures,” in Proc. 8th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 2000, p. 10.
  34.  S. Missoum, Z. Gurdal, and S. Setoodeh, “Study of a new local update scheme for cellular automata in structural design,” Struct. Multidiscip.  Optim., vol. 29, pp. 103–112, 2005.
  35.  M.M. Abdalla and Z. Gurdal, “Structural design using cellular automata for eigenvalue problems,” Struct. Multidiscip.  Optim., vol. 19, pp. 64–73, 2004.
  36.  B. Hassani and M. Tavakkoli, “A multi-objective structural optimization using optimality criteria and cellular automata,” Asian J Civ. Eng. Build. Hous., vol. 8, pp. 77–88, 2007.
  37.  C.L. Penninger, A. Tovar, L.T. Watson, and J.E. Renaud, “KKT conditions satisfied using adaptive neighboring in hybrid cellular automata for topology optimization,” in Proc. 8th World Congress on Struct. Multidiscip. Optim., 2009, p. 10.
  38.  J. Jia et al., “Multiscale topology optimization for non-uniform microstructures with hybrid cellular automata,” Struct. Multidiscip. Optim.,vol. 62, pp. 757–770, 2020.
  39.  M. Afrousheh, J. Marzbanrad, and D. Gohlich, “Topology optimization of energy absorbers under crashworthiness using modified hybrid cellular automata (MHCA) algorithm,” Struct. Multidiscip.  Optim., vol. 60, pp. 1021‒1034, 2019.
  40.  A. Tovar, N.M. Patel, and A.K. Kaushik, “Hybrid cellular automata: a biologically-inspired structural optimization technique,” in Proc. 10th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2004, p.15.
  41.  A. Tovar, N.M. Patel, G.L. Niebur, M. Sen, and J.E. Renaud, “Topology optimization using a hybrid cellular automaton method with local control rules,” J. Mech. Des., vol. 128, pp. 1205–1216, 2006.
  42.  C.L. Penninger, A. Tovar, L.T. Watson, and J.E. Renaud, “KKT conditions satisfied using adaptive neighboring in hybrid cellular automata for topology optimization,” Int. J. Pure Appl. Math., vol. 66, pp. 245–262, 2011.
  43.  B. Bochenek and K. Tajs-Zielinska, “Novel local rules of Cellular Automata applied to topology and size optimization,” Eng. Optim., vol. 44, pp. 23–35, 2012.
  44.  B. Bochenek and K. Tajs-Zielinska, “Topology optimization with efficient rules of cellular automata,” Eng. Comput., vol. 30, pp. 1086– 1106, 2013.
  45.  B. Bochenek and K. Tajs-Zielinska, “Minimal compliance topologies for maximal buckling load of columns,” Struct. Multidiscip.  Optim., vol. 51, pp. 1149–1157, 2015.
  46.  B. Bochenek and K. Tajs-Zielinska, “GOTICA – generation of optimal topologies by irregular cellular automata,” Struct. Multidiscip.  Optim., vol. 55, pp. 1989–2001, 2017.
  47.  M.P. Bendsoe and N. Kikuchi, “Generating optimal topologies in optimal design using a homogenization method,” Comput. Methods Appl. Mech. Eng., vol. 71, pp. 197–224, 1988.
  48.  J. Lim, C. You, and I. Dayyani, “Multi-objective topology optimization and structural analysis of periodic spaceframe structures,” Mater. Des., vol. 190, pp.16, 2020.
  49.  P. Gomes and R. Palacios, “Aerodynamic-driven topology optimization of compliant airfoils,” Struct. Multidiscip. Optim., vol. 62, pp. 2117– 2130, 2020.
  50.  J. Wu and J. Wu, “Revised level set-based method for topology optimization and its applications in bridge construction,” Open Civ. Eng. J., vol. 11, pp. 153–166, 2017.
  51.  A.J. Muminovic, M. Colic, E. Mesic, and I. Saric, “Innovative design of spur gear tooth with infill structure,” Bull. Pol. Acad. Sci. Tech. Sci., vol. 68, no. 3, pp. 477–483, 2020.
  52.  L.L. Beghini, A. Beghini, N. Katz, W.F. Baker, and G.H. Paulino, “Connecting architecture and engineering through structural topology optimization,” Eng. Struct., vol. 59, pp. 716–726, 2014.
  53.  K. Tajs-Zielinska and B. Bochenek, “Topology optimization – engineering contribution to architectural design,” IOP Conf. Ser.: Mater. Sci. Eng., vol. 245, pp.10, 2017.
  54.  F. Regazzoni, N. Parolini, and M. Verani, “Topology optimization of multiple anisotropic materials, with application to self-assembling diblock copolymers,” Comput. Methods Appl. Mech. Eng., vol. 338, pp. 562–596, 2018.
  55.  S. Das and A. Sutradhar, “Multi-physics topology optimization of functionally graded controllable porous structures: Application to heat dissipating problems,” Mater. Des., vol. 193, pp.13, 2020.
  56.  M.P. Bendsoe and O. Sigmund, Topology optimization. Theory, methods and applications, Berlin Heidelberg New York: Springer, 2003.
  57.  O. Sigmund and K. Maute, “Topology optimization approaches,” Struct. Multidiscip. Optim., vol.48, pp. 1031–1055, 2013.
  58.  J.D. Deaton, and R.V. Grandhi, “A survey of structural and multidisciplinary continuum topology optimization: post 2000,” Struct. Multidiscip. Optim., vol. 49, pp. 1–38, 2014.
  59.  J. Liu et al., “Current and future trends in topology optimization for additive manufacturing,” Struct. Multidiscip.  Optim., vol. 57, pp. 2457– 2483, 2018.
  60.  M.A. Herfelt, P.N. Poulsen, and L.C. Hoang, “Strength-based topology optimization of plastic isotropic von Mises materials,” Struct. Multidiscip. Optim., vol.59, pp. 893–906, 2019.
  61.  B. Błachowski, P. Tauzowski, and J. Lógó, “Yield limited optimal topology design of elastoplastic structures,” Struct. Multidiscip.  Optim., vol.61, pp. 1953–1976, 2020.
  62.  L. Xia, F. Fritzen, and P. Breitkopf, “Evolutionary topology optimization of elastoplastic structures,” Struct. Multidiscip. Optim., vol. 55, pp. 569–581, 2017
  63.  B. Bochenek and M. Mazur, “A novel heuristic algorithm for minimum compliance optimization,” Eng. Trans., vol. 64, pp.  541–546, 2016.
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Authors and Affiliations

Katarzyna Tajs-Zielińska
1
Bogdan Bochenek
1

  1. Faculty of Mechanical Engineering, Cracow University of Technology, Al. Jana Pawła II 37, 31-864 Kraków, Poland
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Abstract

The goal of the article is the description and analyze of the exclusions of the maritime carrier’s liability, regulated in international conventions, known as the Hague-Visby Rules and the Hamburg Rules. Their construction is basically different and indicates, that their creators had quite the opposite approach in the way of regulation of the negative scope of maritime carrier’s liability.

In the article it has been compared each exclusion of liability in both conventions, especially with the consideration of the genuine differences with the carrier’s scope of liability. It has been analyzed the examples of the real cases, that have been ruled on the grounds of the maritime carrier’s liability. It has been also take a try to evaluate if the court’s sentence would be the same on the grounds of both conventions, or rather would be different.

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Authors and Affiliations

Patryk Ciok
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Abstract

DC motors have wide acceptance in industries due to their high efficiency, low costs, and flexibility. The paper presents the unique design concept of a multi-objective optimized proportional-integral-derivative (PID) controller and Model Reference Adaptive Control (MRAC) based controllers for effective speed control of the DC motor system. The study aims to optimize PID parameters for speed control of a DC motor, emphasizing minimizing both settling time (Ts ) and % overshoot (% OS) of the closed-loop response. The PID controller is designed using the Ziegler Nichols (ZN) method primarily subjected to Taguchi-grey relational analysis to handle multiple quality characteristics. Here, the Taguchi L9 orthogonal array is defined to find the process parameters that affect Ts and %OS. The analysis of variance shows that the most significant factor affecting Ts and %OS is the derivative gain term. The result also demonstrates that the proposed Taguchi-GRA optimized controller reduces Ts and %OS drastically compared to the ZN-tuned PID controller. This study also uses MRAC schemes using the MIT rule, Lyapunov rule, and a modified MIT rule. The DC motor speed tracking performance is analyzed by varying the adaptation gain and reference signal amplitude. The results also revealed that the proposed MRAC schemes provide desired closed-loop performance in real-time in the presence of disturbance and varying plant parameters. The study provides additional insights into using a modified MIT rule and the Lyapunov rule in protecting the response from signal amplitude dependence and the assurance of a stable adaptive controller, respectively.
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Bibliography

[1] Trong T.N., The control structure for DC motor based on the flatness control, International Journal of Power Electronics and Drive Systems, vol. 8, no. 4, pp. 1814–1821 (2017), DOI: 10.11591/ijpeds.v8.i4.pp1814–1821.
[2] Li Z., Xia C., Speed control of brushless DC motor based on CMAC and PID controller, Proceedings of the 6th IEEEWorld Congress on Intelligent Control and Automation, Dalian, China, pp. 6318–6322 (2016).
[3] Wang M.S., Chen S.C., Shih C.H., Speed control of brushless DC motor by adaptive network-based fuzzy inference, Microsystem Technologies, vol. 24, no. 1, pp. 33–39 (2018), DOI: 10.1007/s00542-016-3148-0.
[4] Templos-Santos J.L., Aguilar-Mejia O., Peralta-Sanchez E., Sosa-Cortez R., Parameter tuning of PI control for speed regulation of a PMSM using bio-inspired algorithms, Algorithms, vol. 12, no. 3, pp. 54–75 (2019), DOI: 10.3390/a12030054.
[5] John D.A., Sehgal S., Biswas K., Hardware Implementation and Performance Study of Analog PIλDμ Controllers on DC Motor, Fractal and Fractional, vol. 4, no. 3, pp. 34–45 (2020), DOI: 10.3390/fractalfract4030034.
[6] Serradilla F., Cañas N., Naranjo J.E., Optimization of the Energy Consumption of Electric Motors through Metaheuristics and PID Controllers, Electronics, vol. 9, no. 11, pp. 1842–1858 (2020), DOI: 10.3390/electronics9111842.
[7] Hammoodi S.J., Flayyih K.S., Hamad A.R., Design and implementation speed control system of DC motor based on PID control and matlab Simulink, International Journal of Power Electronics and Drive Systems, vol. 11, no. 1, pp. 127–134 (2020), DOI: 10.11591/ijpeds.v11.i1.pp127-134.
[8] Zhang Y., An Y., Wang G., Kong X., Multi motor neural PID relative coupling speed synchronous control, Archives of Electrical Engineering, vol. 69, no. 1, pp. 69–88 (2020), DOI: 10.24425/aee.2020.131759.
[9] Wu H., Su W., Liu Z., PID controllers: Design and tuning methods, Proceedings of the 9th IEEE Conference on Industrial Electronics and Applications, Hangzhou, China, pp. 808–813 (2014).
[10] Sheel S., Gupta O., New techniques of PID controller tuning of a DC motor-development of a toolbox, MIT International Journal of Electrical and Instrumentation Engineering, vol. 2, no. 2, pp. 65–69 (2012).
[11] Kumar P., Raheja J., Narayan S., Design of PID Controllers Using Multiobjective Optimization with GA andWeighted Sum Objective Function Method, International Journal of Technical Research, vol. 2, no. 2, pp. 52–56 (2013).
[12] Chiha I., Liouane N., Borne P., Tuning PID Controller using Multi-objective Ant Colony Optimization, Applied Computational Intelligence and Soft Computing, Article ID 536326, 7 pages (2012), DOI: 10.1155/2012/536326.
[13] de Moura Oliveira P.B., Hedengren J.D., Pires E.J., Swarm-Based Design of Proportional Integral and Derivative Controllers Using a Compromise Cost Function: An Arduino Temperature Laboratory Case Study, Algorithms, vol. 13, no. 12, pp. 315–332 (2020), DOI: 10.3390/a13120315.
[14] Dewantoro G., Multi-objective optimization scheme for PID-controlledDCmotor, International Journal of Power Electronics and Drive Systems, vol. 7, no. 3, pp. 31–38 (2016), DOI: 10.11591/ijpeds.v7.i3.pp734-742.
[15] Achuthamenon Sylajakumari P., Ramakrishnasamy R., Palaniappan G., Taguchi Grey Relational Analysis for Multi-Response Optimization of Wear in Co-Continuous Composite, Materials, vol. 11, no. 9, pp. 3–17 (2018), DOI: 10.3390/ma11091743.
[16] El-Samahy A.A., Shamseldin M.A., Brushless DC motor tracking control using self-tuning fuzzy PID control and model reference adaptive control, Ain Shams Engineering Journal, vol. 9, no. 3, pp. 341–352 (2018), DOI: 10.1016/j.asej.2016.02.004.
[17] Neogi B., Islam S.S., Chakraborty P., Barui S., Das A., Introducing MIT rule toward the improvement of adaptive mechanical prosthetic armcontrol model, In Progress in Intelligent Computing Techniques: Theory, Practice, and Applications, Springer, Singapore, pp. 379–388 (2018).
[18] Akbar M.A., Naniwa T., Taniai Y., Model reference adaptive control for DC motor based on Simulink, Proceeding of the 6th IEEE International Annual Engineering Seminar (InAES),Yogyakarta, Indonesia pp. 101–106 (2016).
[19] Sethi D., Kumar J., Khanna R., Design of fractional order MRAPIDC for inverted pendulum system, Indian Journal of Science and Technology, vol. 10, no. 31, pp. 1–5 (2017), DOI: 10.17485/ijst/2017/v10i31/113893.
[20] Jain P., Nigam M.J., Design of a model reference adaptive controller using modified MIT rule for a second-order system, Advances in Electronic and Electric Engineering, vol. 3, no. 4, pp. 477–484, (2013).
[21] Dimeas I., Petras I., Psychalinos C., New analog implementation technique for fractional-order controller: a DC motor control, AEU-International Journal of Electronics and Communications, vol. 78, pp. 192–200 (2017), DOI: 10.1016/j.aeue.2017.03.010.
[22] Qader M.R., Identifying the optimal controller strategy for DC motors, Archives of Electrical Engineering, vol. 68, no. 1, pp. 101–114 (2019), DOI: 10.11591/ijra.v6i4.pp252-268.
[23] George M.A., Kamath D.V., OTA-C voltage-mode proportional- integral- derivative (PID) controller for DC motor speed control, Proceedings of the Academicsera 461st International Conference on Science, Technology, Engineering and Management (ICSTEM), Paris, France, pp. 21–26 (2019).
[24] Swarnkar P., Jain S.K., Nema R.K., Adaptive control schemes for improving the control system dynamics: a review, IETE Technical Review, vol. 31, no. 1, pp. 17–33 (2014), DOI: 10.1080/02564602.2014.890838.
[25] Hägglund T., The one-third rule for PI controller tuning, Computers&Chemical Engineering, vol. 127, pp. 25–30 (2019), DOI: 10.1016/j.compchemeng.2019.03.027.
[26] George M.A., Kamath D.V., Thirunavukkarasu I., An Optimized Fractional-Order PID (FOPID) Controller for a Non-Linear Conical Tank Level Process, Proceedings of IEEE Applied Signal Processing Conference (ASPCON), Kolkata, India, pp. 134–138 (2020).
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Authors and Affiliations

Mary Ann George
1
ORCID: ORCID
Dattaguru V. Kamat
1
ORCID: ORCID

  1. Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE), Manipal – 576104, Udupi District, Karnataka State, India
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Abstract

Increasing development in information and communication technology leads to the generation of large amount of data from various sources. These collected data from multiple sources grows exponentially and may not be structurally uniform. In general, these are heterogeneous and distributed in multiple databases. Because of large volume, high velocity and variety of data mining knowledge in this environment becomes a big data challenge. Distributed Association Rule Mining(DARM) in these circumstances becomes a tedious task for an effective global Decision Support System(DSS). The DARM algorithms generate a large number of association rules and frequent itemset in the big data environment. In this situation synthesizing highfrequency rules from the big database becomes more challenging. Many algorithms for synthesizing association rule have been proposed in multiple database mining environments. These are facing enormous challenges in terms of high availability, scalability, efficiency, high cost for the storage and processing of large intermediate results and multiple redundant rules. In this paper, we have proposed a model to collect data from multiple sources into a big data storage framework based on HDFS. Secondly, a weighted multi-partitioned method for synthesizing high-frequency rules using MapReduce programming paradigm has been proposed. Experiments have been conducted in a parallel and distributed environment by using commodity hardware. We ensure the efficiency, scalability, high availability and costeffectiveness of our proposed method.
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Authors and Affiliations

Sudhanshu Shekhar Bisoyi
1
Pragnyaban Mishra
2
Saroja Nanda Mishra
3

  1. Department of Computer Science and Information Technology, Siksha ’O’ Anusandhan Deemed to be University (SOA), Institute of Technical Education and Research (ITER), Bhubaneswar, Odisha, India
  2. Dept. of Computer Science and Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur, AP, India
  3. Dept. of CSE&A, IGIT, Sarang, Dhenkanal, Odisha, India
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Abstract

On the occasion of receiving the highest distinction of the honorary professor from the Jagiellonian University at Kraków, the author looks back at his academic career and ponders how sociological wisdom has left an impact on his life. He singles out the sixteen principles and rules formulated by the eminent sociologists, both classical of the XIX century and modern of the XX century, which he believes have influenced his professional social roles of the researcher, writer and educator, as well as his private everyday life. The famous quotations drawn from the sociological literature (e.g. the Thomas theorem, C.W. Mills’ sociological imagination, C.H. Cooley’s looking-glass self, E. Goffman’s the theatre of everyday life, R. Merton’s metaphor of scholars as pigmies on the shoulders of giants etc.) are accompanied by extensive interpretations by the author, relating them to his personal life-experiences.
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Authors and Affiliations

Piotr Sztompka
1

  1. Uniwersytet Jagielloński
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Abstract

Over the last three years European Union (EU) law has experienced a veritable revolution triggered by the Court of Justice’s rethinking of the fundamental aspects underpinning both the EU’s competence to deal with Rule of Law matters (especially related to the independence and the irremovability of judges at the national level), and the substantive understanding of the key elements of the Rule of Law pertaining to the newly-found competence. An upgraded approach to interim relief in matters related to the Rule of Law completes the picture. As a result, EU law has gone through a profound transformation and the assumptions as to the perceived limits of its reach – insofar as the organization of the national judiciaries is concerned – no longer hold. However, there is also the opposite side to this “Rule of Law revolution.” While its effectiveness in terms of bringing recalcitrant Member States back on track has not been proven (and Poland and Hungary stand as valid reasons for doubts); the division of powers between the Member States and the EU has been altered forever. Rule of Law thus emerges as a successful pretext for a supranational powergrab in the context of EU federalism. The picture is further complicated by the fact that the substantive elements of the Rule of Law required by the Court of Justice of the European Union of the Member States’ judiciaries are seemingly perceived as inapplicable to the supranational level itself. These include structural independence from other branches of power and safeguards of the guarantees of irremovability and security of tenure of the members of the judiciaries. Taking all these elements into consideration, the glorious revolution appears to have triggered at least as many questions as it has provided answers, while being entirely unable to resolve the outstanding problems on the ground in the Member States experiencing significant backsliding in the areas of democracy and the Rule of Law.
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Authors and Affiliations

Dimitry Vladimirovich Kochenov
1 2 3
ORCID: ORCID

  1. CEU Democracy Institute, Budapest
  2. CEU Legal Studies Department, Vienna
  3. COMPAS Visiting Academic (Hilary term 2021), School of Anthropology, University of Oxford
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Abstract

This article analyses the capacity of the African Charter on Democracy, Elections and Governance to counteract the democratic governance shortfall. It argues that the tangible impact of the treaty on the states’ practice has been limited by various endogenous and exogenous factors. The former are identified as directly linked to content of the document and refer to the accuracy of the drafting. The latter are rooted outside the text and beyond the character of the Charter and include issues relating to the states’ reluctance to ratify the document, certain constitutional constraints undermining implementation on the national level, and the weak international guarantees of enforcement.

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Authors and Affiliations

Jan Marek Wasiński
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Abstract

The objective of this paper is to derive the characteristics of an effective governance framework ensuring incentives for conducting a prudent fiscal policy.We study this problem with the use of econometric tools and a sample of 28 European Union Member States between 2003 and 2017. By looking at specific reforms and measures, not only we verify the synthetic effectiveness of fiscal constraints but also we analyse specific elements of the governance framework.Our study shows that fiscal balances are affected not only by the economic cycle, but, among others, by the level of public debt and its cost. We find that the existence of numerical fiscal rules, in that specifically revenue and expenditures rules, their strong legal entrenchment, surveillance mechanisms, sanctions, and flexibility with respect to business cycle have a significant impact on curbing deficits.

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Authors and Affiliations

Grzegorz Poniatowski
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Abstract

The paper presented intends to fill up a gap in surveying the Hotelling Rule by taking a company based, microeconomic approach based on analyses of annual reports. Using selected data three fundamental hyphothesis are tested:
1) growth rate of margins (“net margins” including a capital charge) per unit realized by mining companies must exceed a rate equal to their cost of capital,
2) output shall follow deviations from the Hotelling growth line,
3) margins shall follow a path set by individually defined expected rate of return.
The analysis was based on 5 leading gold producers, responsible for ca 15–20% of global primary production, all of them public and listed on a stock exchange for the entire period of 2004–2019/2020. As margin shall grow at a rate compensating individual risk of a company in consideration, they shall not be homogenous. At 1st step industry WACC was adopted to calculate a normalized capital charge. The calculations revealed no support for Hotelling Rule. There is no evidence that over a period of above 15 years margins follow any path determined by a growing expotential function, following a compound rate. Subsequently it was checked whether output volume is corrected due to development of actual versus expected (resulting from the Hotelling Rule) margin values. Selected companies were near indifferent to this parameter while taking decisions in area of volumes supplied. Neither there is no evidence of relation between changes in output and margins. Finally, it was checked whether differences between expected and actual margins’ growth paths could be described by a linear function, resulting from consequent adoption of a risk rate component. Here neither any evidence was found. In conclusion no support for the Hotelling rule was identified.
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Authors and Affiliations

Robert Uberman
1
ORCID: ORCID

  1. Andrzej Frycz Modrzewski Krakow University, Kraków, Poland
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Abstract

Power big data contains a lot of information related to equipment fault. The analysis and processing of power big data can realize fault diagnosis. This study mainly analyzed the application of association rules in power big data processing. Firstly, the association rules and the Apriori algorithm were introduced. Then, aiming at the shortage of the Apriori algorithm, an IM-Apriori algorithm was designed, and a simulation experiment was carried out. The results showed that the IM-Apriori algorithm had a significant advantage over the Apriori algorithm in the running time. When the number of transactions was 100 000, the running of the IM-Apriori algorithm was 38.42% faster than that of the Apriori algorithm. The IM-Apriori algorithm was little affected by the value of supportmin. Compared with the Extreme Learning Machine (ELM), the IM-Apriori algorithm had better accuracy. The experimental results show the effectiveness of the IM-Apriori algorithm in fault diagnosis, and it can be further promoted and applied in power grid equipment.

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Authors and Affiliations

Jianguo Qian
Bingquan Zhu
Ying Li
Zhengchai Shi
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Abstract

I argue in the paper that the conception of family resemblance discussed by Ludwig Wittgenstein in Philosophical Investigations is a result of the application of Wittgenstein’s general argument against rule‑following to the pragmatics of all concepts. My argument runs as follows: First, (1) I criticize interpretations of family resemblance as a ‘local’ theory, applicable only to some concepts. Next, (2) I present and criticise a classic argument against the conception of family resemblance. In the following section, (3) I analyse attempts to explicate family resemblance in terms of their possessing a common basic feature. I end my paper (4) by summarizing conclusions drawn from this critical review of literature and I briefly point to a possible solution of the difficulties generated by the concept of family resemblance.
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Bibliography

1. Andersen H. (2000), Kuhn’s Account of Family Resemblance: A Solution to the Problem of Wide‑Open Texture, „Erkenntnis” 52 (3), s. 313–337.
2. Bambrough R. (1960), Universals and Family Resemblances, „Proceedings of the Aristotelian Society. New Series” 61, s. 207–222.
3. Bellaimey J. (1990), Family Resemblances and the Problem of the Under- ‑Determination of Extension, „Philosophical Investigations” 13 (1), s. 31–43.
4. Campbell K. (1965), Family Resemblance Predicates, „American Philosophical Quarterly” 2 (3), s. 238–244.
5. Forster M. (2010), Wittgenstein on Family Resemblance Concepts, w: A. Ahmed (red.), Wittgenstein’s Philosophical Investigations. A Critical Guide, Cambridge: Cambridge University Press, s. 66–87.
6. Glock H.‑J. (2001), Słownik Wittgensteinowski, przeł. M. Hernik, M. Szczubiałka, Warszawa: Spacja.
7. Griffin N. (1974), Wittgenstein, Universals and Family Resemblances, „Canadian Journal of Philosophy” 3 (4), s. 635–651.
8. Hattiangadi A. (2007), Oughts and Thoughts. Rule‑Following and the Normativity of Content, Oxford: Oxford University Press.
9. Khatchadourian H. (1958), Common Names and “Family Resemblances”, „Philosophy and Phenomenological Research” 18 (3), s. 341–358.
10. Kripke S. (2007), Wittgenstein o regułach i języku prywatnym, przeł. K. Posłajko, L. Wroński, Warszawa: Fundacja Aletheia.
11. McGinn C. (2012), Truth by Analysis: Games, Names and Philosophy, Oxford: Oxford University Press.
12. Simon M.A. (1969), When is a Resemblance a Family Resemblance?, „Mind. New Series” 78 (311), s. 408–416.
13. Suits B. (1978), The Grasshopper. Games, Life and Utopia, Toronto: University of Toronto Press.
14. Wennerberg H. (1967), The Concept of Family Resemblance in Wittgenstein’s Later Philosophy, „Theoria” 33 (2), s. 108–132.
15. Wittgenstein L. (1974), Philosophical Grammar, red. R. Rhees, przeł. A. Kenny, Oxford: Basil Blackwell.
16. Wittgenstein L. (2000), Uwagi o podstawach matematyki, przeł. M. Poręba, Warszawa: Wydawnictwo KR.
17. Wittgenstein L. (2001), Wittgenstein’s Lectures: Cambridge 1932–1935, red. A. Ambrose, New York: Prometheus Books.
18. Wittgenstein L. (2012), Dociekania filozoficzne, przeł. B. Wolniewicz, Warszawa: Wydawnictwo Naukowe PWN.

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Authors and Affiliations

Paweł Grad
1
ORCID: ORCID

  1. Szkoła Nauk Społecznych Instytutu Filozofii i Socjologii Polskiej Akademii Nauk, ul. Nowy Świat 72, 00-330 Warszawa
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Abstract

This paper presents a multidisciplinary model built across linguistics and selected research and hypotheses in the field of quantum physics and molecular biology. The conceptual link between the biological concept of protein sequencing and the anthropocentric assumptions concerning the operationalization of language rules will be discussed. The multidisciplinary model shows the link between the concept of sequencing language rules and constructing textemes.

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Authors and Affiliations

Anna Bajerowska
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Abstract

The concept of a general average is the oldest institution of maritime law. Its usefulness in modern shipping relations has long been criticized. Nevertheless, the general average, despite the fact that it is not the subject of any international agreement, occupies a prominent place in the internal legal systems of maritime states, and the international community continues to show great interest in it, regularly changing the principles of accounting established in the second half of the 19th century in York and Antwerp. During the work on the draft of the new Polish Maritime Code, the Maritime Law Codification Commission made some changes in the regulations concerning the general average, adapting the provisions of Polish law to new solutions proposed by participants of international maritime trade and non-governmental organizations, including Comité Maritime International.

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Authors and Affiliations

Cezary Łuczywek
ORCID: ORCID
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Abstract

The article discusses the architecture of the parish church in Czarnca (1640 – around 1655), which up till now has not been discussed in detail by researchers. The innovative construction solutions used in the church are part of a wider European environment, in which architects were looking for ways to make better use of natural sunlight for interior lightning in buildings.
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Authors and Affiliations

Aleksander Stankiewicz
1
ORCID: ORCID

  1. Uniwersytet Kardynała Stefana Wyszyńskiego
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Abstract

This paper proposes the usage of the fuzzy rule-based Bayesian algorithm to determine which residential appliances can be considered for the Demand Response program. In contrast with other related studies, this research recognizes both randomness and fuzziness in appliance usage. Moreover, the input data for usage prediction consists of nodal price values (which represent the actual power system conditions), appliance operation time, and time of day. The case study of residential power consumer behavior modeling was implemented to show the functionality of the proposed methodology. The results of applying the suggested algorithm are presented as colored 3D control surfaces. In addition, the performance of the model was verified using R squared coefficient and root mean square error. The conducted studies show that the proposed approach can be used to predict when the selected appliances can be used under specific circumstances. Research of this type may be useful for evaluation of the demand response programs and support residential load forecasting.
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Authors and Affiliations

Piotr Kapler
1
ORCID: ORCID

  1. Warsaw University of Technology, Faculty of Electrical Engineering, Electrical Power Engineering Institute, Koszykowa 75, 00-662 Warsaw, Poland
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Abstract

In this paper, the issue related to control of the plant with nonconstant parameters is addressed. In order to assure the unchanged response of the system, an adaptive state feedback speed controller for permanent magnet synchronous motor is proposed. The model-reference adaptive system is applied while the Widrow-Hoff rule is used as adjustment mechanism of controller’s coefficients. Necessary modifications related to construction of the cost function and formulas responsible for adjustment of state feedback speed controller’s coefficients are depicted. The impact of adaptation gain, which is the only parameter in proposed adjustment mechanism, on system behaviour is experimentally examined. The discussion about computational resources consumption of the proposed adaptation algorithm and implementation issues is included. The proposed approach is utilized in numerous experimental tests on modern SiC based drive with nonconstant moment of inertia. Comparison between adaptive and nonadaptive control schemes is also shown.

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Authors and Affiliations

R. Szczepanski
T. Tarczewski
L.M. Grzesiak
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Abstract

The evaluation of a resercher`s life work often does not include, or underestimates, articles written for the Polish Biographical Dictionary. To compensate for this gap, I wish to introduce a short outline of the issues discussed by Józef Andrzej Gierowski in his biographical work, supplemented by a list of the 52 biographies he was aurhor author of. This article`s aim is to highlighting his contributions to the research of the history of the local and central elites of the Polish‑Lithuanian Commonwealth, both by examples and the by listing.
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Authors and Affiliations

Maria Czeppe
1
ORCID: ORCID

  1. Instytut Historii Polskiej Akademii Nauk
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Abstract

The paper considers the production scheduling problem in a hybrid flow shop environment with sequence-dependent setup times and the objectives of minimizing both the makespan and the total tardiness. The multi-objective genetic algorithm is applied to solve this problem, which belongs to the non-deterministic polynomial-time (NP)-hard class. In the structure of the proposed algorithm, the initial population, neighborhood search structures and dispatching rules are studied to achieve more efficient solutions. The performance of the proposed algorithm compared to the efficient algorithm available in literature (known as NSGA-II) is expressed in terms of the data envelopment analysis method. The computational results confirm that the set of efficient solutions of the proposed algorithm is more efficient than the other algorithm.
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Authors and Affiliations

Seyyed Mostafa Mousavi
1
Parisa Shahnazari-Shahrezaei
2

  1. Department of Technical and Engineering, Nowshahr Branch, Islamic Azad University, Mazandaran, Iran
  2. Department of Industrial Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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Abstract

The report encompasses the activity of the Committee on Ethics in Science in the year 2018.

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Authors and Affiliations

Andrzej Górski
Mieczysław Grabianowski

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