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Number of results: 9
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Abstract

Computational modeling plays an important role in the methodology of contemporary science. The epistemological role of modeling and simulations leads to questions about a possible use of this method in philosophy. Attempts to use some mathematical tools to formulate philosophical concepts trace back to Spinoza and Newton. Newtonian natural philosophy became an example of successful use of mathematical thinking to describe the fundamental level of nature. Newton’s approach has initiated a new scientific field of research in physics and at the same time his system has become a source of new philosophical considerations about physical reality. According to Michael Heller, some physical theories may be treated as the formalizations of philosophical conceptions. Computational modeling may be an extension of this idea; this is what I would like to present in the article. I also consider computational modeling in philosophy as a source of new philosophical metaphors; this idea has been proposed in David J. Bolter’s conception of defining technology. The consideration leads to the following conclusion: In the methodology of philosophy significant changes have been taking place; the new approach do not make traditional methods obsolete, it is rather a new analytical tools for philosophy and a source of inspiring metaphors.

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Authors and Affiliations

Paweł Polak
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Abstract

This paper presents an outline of the relationship between the categories of living individual, organism and life. I argue that although these categories are related with each other and often treated as the same, we should strive for their separation. The main argument for the distinction between the individual and life is of a methodological character: the definitions of life are mainly interested for astrobiologists and scientists working in the field of origin of life or artificial life, while the individual is important, among others, in standard evolutionary biology and ecology. Among the concepts of living individual various forms of evolutionary definition (individual as a unit of selection) currently dominate. The living individual understood in this way is not identical with a structurally limited and functionally integrated self-sustained entity, which is usually called “organism.” Moreover, the explanatory success of the evolutionary concept of individual, in my opinion, implies the adoption of some version of the evolutionary definition of life. In the last part of this paper I propose a process-evolutionary definition of life, which also indicates a relationship between the three aforementioned categories.

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Authors and Affiliations

Krzysztof Chodasewicz
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Abstract

Hobby magazines represent a segment of the Polish press characterized by an undiminishing diversity — as shown by their eye-catching presence on library and press saloon shelves. However, that subsection of the Polish media has so far attracted little attention from reserchers. The goal of this article is to examine the phenomenon of the hobby magazines in the context of the current market conditions and to outline a research plan of the field.
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Authors and Affiliations

Aleksandra Lubczyńska
1
ORCID: ORCID

  1. Katedra Dziennikarstwa i Komunikacji Społecznej, Uniwersytet Jana Kochanowskiego w Kielcach, ul. Uniwersytecka 17, PL 25-406 Kielce
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Abstract

With improved technological successions, wireless communication applications have been incessantly evolving. Owing to the challenges posed by the multipath wireless channel, radio design prototypes have become elemental in all wireless systems before deployment. Further, different signal processing requirements of the applications, demand a highly versatile and reconfigurable radio such as Software Defined Radio (SDR) as a crucial device in the design phase. In this paper, two such SDR modules are used to develop an Orthogonal Frequency Division Multiplexing (OFDM) wireless link, the technology triumphant ever since 4G. In particular, a non-coherent end-to-end OFDM wireless link is developed in the Ultra High Frequency (UHF) band at a carrier frequency of 470 MHz. The transmitter includes Barker sequences as frame headers and pilot symbols for channel estimation. At the receiver, pulse alignment using Max energy method, frame synchronization using sliding correlator approach and carrier offset correction using Moose algorithm are incorporated. In addition, wireless channel is estimated using Least Square (LS) based pilot aided channel estimation approach with denoising threshold and link performance is analyzed using average Bit Error Rate (BER), in different pilot symbol scenarios. In a typical laboratory environment, the results of BER versus receiver gain show that with 4 pilot symbols out of 128 carriers, at a gain of 20 dB, BER is 0.160922, which is reduced to 0.136884 with 16 pilot symbols. The developed link helps OFDM researchers to mitigate different challenges posed by the wireless environment and thereby strengthen OFDM technology.
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Authors and Affiliations

Nandana Narayana
1
Pallaviram Sure
1

  1. Department of Electronics and Communication Engineering, MS Ramaiah University of Applied Sciences, Bangalore, India
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Abstract

The article is devoted to the development of a method for increasing the efficiency of communication channels of unmanned aerial vehicles (UAVs) in the conditions of electronic warfare (EW). The author analyses the threats that may be caused by the use of electronic warfare against autonomous UAVs. A review of some technologies that can be used to create original algorithms for countering electronic warfare and increasing the autonomy of UAVs on the battlefield is carried out. The structure of modern digital communication systems is considered. The requirements of unmanned aerial vehicle manufacturers for onboard electronic equipment are analyzed, and the choice of the hardware platform of the target radio system is justified. The main idea and novelty of the proposed method are highlighted. The creation of a model of a cognitive radio channel for UAVs is considered step by step. The main steps of modelling the spectral activity of electronic warfare equipment are proposed. The main criteria for choosing a free spectral range are determined. The type of neural network for use in the target cognitive radio system is substantiated. The idea of applying adaptive coding in UAV communication channels using multicomponent turbo codes in combination with neural networks, which are simultaneously used for cognitive radio, has been further developed.
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Authors and Affiliations

Serhii Semendiai
1
Yuliіa Tkach
1
Mykhailo Shelest
1
Oleksandr Korchenko
2
Ruslana Ziubina
3
Olga Veselska
3

  1. Chernihiv Polytechnic NationalUniversity, Chernihiv, Ukraine
  2. Department of Information Technology Security of National Aviation University, Kyiv, Ukraine
  3. Department of Computer Science andAutomatics of the University of Bielsko-Biala, Bielsko-Biala, Poland
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Abstract

In the article, a validation module, being a component of an integrated system supporting routing in software defined networks (SDNRoute), is proposed and thoroughly examined. The module allows for the verification of the results provided by the optimization module before these results are deployed in the production network. Routing policies are validated for their impact on the network quality parameters and against the threat of overloading (congestion).

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Authors and Affiliations

Piotr Jaglarz
Grzegorz Rzym
Piotr Jurkiewicz
ORCID: ORCID
Piotr Boryło
ORCID: ORCID
Piotr Chołda
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Abstract

The power distribution internet of things (PD-IoT) has the complex network architecture, various emerging services, and the enormous number of terminal devices, which poses rigid requirements on substrate network infrastructure. However, the traditional PD-IoT has the characteristics of single network function, management and maintenance difficulties, and poor service flexibility, which makes it hard to meet the differentiated quality of service (QoS) requirements of different services. In this paper, we propose the software-defined networking (SDN)- enabled PD-IoT framework to improve network compatibility and flexibility, and investigate the virtual network function (VNF) embedding problem of service orchestration in PD-IoT. To solve the preference conflicts among different VNFs towards the network function node (NFV) and provide differentiated service for services in various priorities, a matching-based priorityaware VNF embedding (MPVE) algorithm is proposed to reduce energy consumption while minimizing the total task processing delay. Simulation results demonstrate that MPVE significantly outperforms existing matching algorithm and random matching algorithm in terms of delay and energy consumption while ensuring the task processing requirements of high-priority services.
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Bibliography

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Authors and Affiliations

Xiaoyue Li
1
Xiankai Chen
1
Chaoqun Zhou
1
Zilong Liang
1
Shubo Liu
1
Qiao Yu
1

  1. State Grid Qingdao Power Supply Company, China
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Abstract

According to Kurt Gödel, Bertrand Russell misinterpreted the incompleteness theorem, but did it in ʻa very interesting manner’. To understand what he meant we need to consider their attitudes to defining truth. Even more revealing is the discussion of two fundamental approaches to logic: one is universalistic, and assumed by both Russell and Gödel, and the other is model‑theoretical, Alfred Tarski’s style. It turns out that a misleading or erroneous interpretation can be interesting, as it reveals something fundamental. William Byers claims that truly great ideas in mathematics and about mathematics are in a way false, as they lead to errors, but at the same time they can help to make advances in math. Logicism provides a good example. In addition it may be mentioned that when Russell argued in its favor, he committed a logical fallacy.
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Authors and Affiliations

Stanisław Krajewski
1
ORCID: ORCID

  1. Uniwersytet Warszawski, Wydział Filozofii, ul. Krakowskie Przedmieś-cie 3, 00-047 Warszawa
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Abstract

Bogusław Wolniewicz’s book Things and facts, although it is essentially devoted to the interpretation of the Wittgenstein’s Tractatus, also has a substantive layer in which Wolniewicz raises very important problems in the fields of methodology, semiotics and metaphysics, such as: (a) the problem of clarity of philosophical texts and its relation to simplicity and brevity, as well as to thoroughness and suggestiveness; (b) the problem of semantic correlation types; (c) the problem of analysis, interpretation and definition; (d) the problems of modality, negative facts, absolute monism and coherentionism; (e) the problem of abstraction and moral-praxeological antinomy. The author of the paper reconstructs Wolniewicz’s views on these matters.

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Authors and Affiliations

Jacek Jadacki

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