Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 15
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

In this study, BaFe12-2xCoxTixO19 (X : 0 to 2.0, 0.2) powders were synthesized by sol-gel process. TG-DTA, XRD, SEM, VSM, and Network analyzer were measured in order to influence easy magnetization axis change on the wave absorption frequency range change. The easy magnetization axis change of the annealed powder at 900°C and 1200°C was confirmed by the coercive force decreased 4,800 and 3,870 Oe to 260 and 269 Oe, respectively, at the substitution ratio of 0.8 and 1.0. And it was confirmed that the change of the easy magnetization axis affected the change of the wave absorption frequency. The wave absorption frequency of substituted Barium Ferrite was less than 10 GHz range after the easy magnetization axis of Barium ferrite changed to a-b plan direction. It was confirmed the BaFe12-2xCoxTixO19(x = 0.8 to 1.6) was synthesized by the sol-gel process and it was annealed at 900°C and 1200°C, which could be used as a wave absorber in the X-band region of 10 GHz less.

Go to article

Authors and Affiliations

Su-Won Yang
Jeong-Gon Kim
Kwang-Pil Jeong
Han-Ul Shim
Seong-Il Cho
Min-Young Kim
Download PDF Download RIS Download Bibtex

Abstract

Taking into account the numerous previous attempts to use waste glass for concrete production, an approach was proposed based solely on car side window glass waste. Only side window waste emerging during the production of car side windows was used during the research program. In this way, all key properties of the waste glass were under control (purity, granulometric properties, etc.). Two types of concretes with crushed side window glass, playing the role of coarse aggregate, were created. Concretes were differentiated by the amount of added crushed side window glass, which replaced 10–50% of the natural aggregate. Created concretes were thoroughly tested in the state of both a fresh mix and hardened composite. Consistency and air content of fresh mixes were tested. Slump was ranging from 15 mm to 20 mm and air content was ranging from 2.5% to 3.1%. Hardened composites were used to test apparent density, compressive strength, water absorption, water-tightness and resistance to freeze–thaw cycles. It was proven that concrete with side window glass as partial aggregate substitution is characterized by satisfactory mechanical properties (compressive strength after 28 days of curing was ranging from 51.9 MPa to 54.7 MPa), enabling its application as ordinary structural concrete. Properties of both fresh concrete mixes and hardened concretes based on crushed side window glass are similar to a reference concrete. It was proved that it is possible to replace up to 50% of natural coarse aggregate by crushed side window glass. Possible applications of the concretes in question were proposed. Experience gained during the research program is likely to be useful for tests of using crushed side window glass sourced from decommissioned cars and trucks. Areas where future research is needed are indicated.
Go to article

Authors and Affiliations

Bogdan Langier
1
ORCID: ORCID
Jacek Katzer
2
ORCID: ORCID
Maciej Major
1
ORCID: ORCID
Jacek Halbiniak
1
ORCID: ORCID
Izabela Major
1
ORCID: ORCID

  1. Częstochowa University of Technology, Faculty of Civil Engineering, ul. Dąbrowskiego 69, 42-201 Częstochowa, Poland
  2. University ofWarmia and Mazury in Olsztyn, Faculty of Geoengineering, ul. Oczapowskiego 2,10-719 Olsztyn, Poland
Download PDF Download RIS Download Bibtex

Abstract

Environmental protection is one of the objectives of the implemented concept of sustainable development and circular economy. The construction industry and its products (building objects) have a large contribution in negative influences, therefore all actions limiting them are necessary. One way of doing this is to apply substitution to existing unfavourable solutions, both in terms of construction and materials as well as technology and organization. The aim of the article was to determine the key factors conditioning the use of substitution at each stage of the investment and construction cycle, leading to environmental protection. The research paid attention to the use of substitute recycled products. The defined factors were subjected to a SWOT analysis and then, using the DEMATEL method, cause-andeffect relationships were identified that determine development in the application of substitution in the environmental context of sustainable and closed-cycle construction. The analysis was carried out by using a summative, linear aggregation of the values of the position and relationship indicators.
Go to article

Authors and Affiliations

Anna Sobotka
1
ORCID: ORCID
Kazimierz Linczowski
1
ORCID: ORCID
Aleksandra Radziejowska
1
ORCID: ORCID

  1. AGH University of Science and Technology in Cracow, Faculty of Civil Engineering and Resource Management, Department of Geomechanics, Civil Engineering and Geotechnics, Av. Mickiewicza 30, 30-059 Cracow, Poland
Download PDF Download RIS Download Bibtex

Abstract

The studies of tobacco demand accounting for product diversity haveattracted much attention in the literature, but theex antemeasurements ofthe effects of product bans are relatively scarce. This paper aims to fill this gapand considers the 2020 EU-induced ban on menthol cigarettes as an example,focusing on the Polish market. In the proposed approach, a 2004-2017 product-level dataset for Poland is used to estimate a random coefficients logit modeland simulate the effects of the menthol ban and, for comparison, a cigaretteexcise hike. The dataset is unique as it encompassess substantial changes inthe tobacco tax level and structure that took place in Poland over the sampleperiod. The simulations suggest that the ban, despite switching of consumerstowards non-menthol cigarettes, results in relatively strong reduction in demandfor duty-paid cigarettes, stronger than in the case of the excise hike.

Go to article

Authors and Affiliations

Bartosz Olesiński
Download PDF Download RIS Download Bibtex

Abstract

The evaluation accuracies of rock mass structures based on the ratings of the Rock Quality Designation (RQD) and discontinuity spacing (S) in the Rock Mass Rating (RMR) system are very limited due to the inherent restrictions of RQD and S. This study presents an improvement that replaces these two parameters with the modified blockiness index (Bz) in the RMR system. Before proceeding with this replacement, it is necessary for theoretical model building to make an assumption that the discontinuity network contains three sets of mutually orthogonal disc-shaped discontinuities with the same diameter and spacing of discontinuities. Then, a total of 35 types of theoretical DFN (Discrete Fracture Network) models possessing the different structures were built based on the International Society for Rock Mechanics (ISRM) discontinuity classification (ISRM, 1978). In addition, the RQD values of each model were measured by setting the scanlines in the models, and the Bz values were computed following the modified blockiness evaluation method. Correlations between the three indices (i.e., Bz, RQD and S) were explored, and the reliability of the substitution was subsequently verified. Finally, RMR systems based on the proposed method and the standard approach were applied to real cases, and comparisons between the two methods were performed. This study reveals that RQD is well correlated with S but is difficult to relate to the discontinuity diameter (D), and Bz has a good correlation with RQD/S. Additionally, the ratings of RQD and S are always far from the actual rock mass structure, and the Bz ratings are found to give better characterizations of rock mass structures. This substitution in the RMR system was found to be acceptable and practical.
Go to article

Authors and Affiliations

Qingfa Chen
Tingchang Yin
Wenjing Niu
Download PDF Download RIS Download Bibtex

Abstract

The lithium market has experienced an unprecedented boom in recent years like a “golden age” and is one of the fastest growing raw material markets in the world. The fast growing demand for lithium is mainly related to the increase in the production of lithium-ion batteries used in electric or hybrid vehicles and portable electronic equipment, and to a lesser extent, in other strategic fields (military, nuclear technologies). This was reflected in a significant change in the structure of consumption, an increase in international trade and in the price of lithium raw materials. Moreover, in 2018 lithium was listed as a critical element for the national security and economy of the United States, and in 2020 it was also listed as a critical raw material for the European Union economy. It is also a time of increased exploration for new deposits, as well as mining processing and recycling. As a result, global lithium reserves have doubled in the last six years. All this prompted the authors to prepare an article in which the sources of lithium minerals and their resources, the basic factors determining the economic situation on the market, their prices and the possibilities of recycling and substitution are presented and assessed. Attention is also paid to the role of companies operating in Poland as significant partners on the European market of lithium-ion batteries. Lithium oxide and hydroxide and lithium carbonate are the main lithium raw materials used in Poland. In the absence of the country having its own deposits, they are imported, and the main suppliers are Chile, Western European countries and Russia.
Go to article

Authors and Affiliations

Jarosław Szlugaj
1
ORCID: ORCID
Barbara Radwanek-Bąk
1
ORCID: ORCID

  1. Mineral and Energy Economy Research Institute, Polish Academy of Sciences, Kraków, Poland
Download PDF Download RIS Download Bibtex

Abstract

To test the potential harmfulness of soils fertilized with sludge-based products to plant organisms, a biotest method using the physiological/biochemical reaction of the organisms to assess their toxicity was chosen. This paper presents the results of a preliminary ecotoxicological study of different products: a sludge-based fertilizer, a plant growth promoter, and a reclamation blend. The study was conducted using Sinapis alba L., a plant used in agriculture for intercropping and recommended for toxicological testing. Toxicity tests were performed in a gradient of concentrations of the indicated products (2.5%, 5%, and 10%). For comparison purposes, a trial containing a commercial fertilizer was used alongside the control soil (without additives). The fertilizer and the crop support agent were of low toxicity, but data analysis indicated toxicity of the so-called reclamation blend, which contained heavy metals among other things. The test products showed an increase in toxicity with the increasing dose used. This research represents an important step in assessing the usefulness of products created from sewage sludge and may help overcome the „psychological barrier” that prevents potential investors from investing capital that would allow production to spread.
Go to article

Bibliography

  1. Borgulat, J. (2020). Zróżnicowanie zawartości metali ciężkich i wielopierścieniowych węglowodorów aromatycznych (WWA) w igłach Picea abies oraz Abies alba w Beskidzie Śląskim i Żywieckim. [Unpublished doctoral dissertation]. University of Silesia
  2. Borgulat, J., Mętrak, M., Staszewski, T., Wiłkomirski, B., Suska-Malawska, M. (2018). Heavy Metals Accumulation in Soil and Plants of Polish Peat Bogs. Polish Journal of Environmental Studies, 27(2). DOI: 10.15244/pjoes/75823
  3. Breda, C.C., Bortolanza, M., Renan, S., Tavantic, F.R., Viana, D., Freddia, O., Piedade, A.R., Mahle, D.,Traballi, R.C., Guerrinig, I. (2020). Successive sewage sludge fertilization: Recycling for sustainable agriculture. Waste Management, 109, pp. 38-50. DOI:10.1016/j.wasman.2020.04.045
  4. Ciesielczuk, T., Rosik-Dulewska, C., Poluszyńska, J., Miłek, D., Szewczyk, A., & Sławińska, I. (2018). Acute toxicity of experimental fertilizers made of spent coffee grounds. Waste Biomass Valori, 9(11), pp. 2157-2164. DOI:10.1007/s12649-017-9980-3
  5. Food and Agriculture Organization of United Nations: Worlds Fertilizer trends and Outlook to 2022. FAO 2019.
  6. Grobelak, A., Stępień, W., & Kacprzak, M. (2016). Sewage sludge as a component of fertilizers and soil substitutes. Inż. Ekol. (in Polish). DOI: 10.12912/23920629/63289
  7. GUS, 2019. Ochrona Środowiska. (http://stat.gov.pl, 10.11.2020)
  8. Harasimowicz-Hermann, G., Hermann J. (2006). The function of catch crops in the protection of mineral resources and soil organic matter. Zesz. Probl. Post. Nauk Rol., I(512), pp. 147–155. (in Polish)
  9. Hase, T., Kawamura, K. (2012). Germination test on Komatsuna (Brassica rapa var. peruviridis) seed using water extract from compost for evaluating compost maturity: evaluating criteria for germination and effects of cultivars on germination rate. J. Mater. Cycles Waste Manage., 14(4), pp. 334–340. DOI:10.1007/s10163-012-0073-x
  10. Jakubus, M. (2012). Evaluation of compost by selected chemical and biological methods. Fresen. Environ. Bull., 21(11a), pp. 3464–3472.
  11. Journal of Laws. 2016 item 1395. Regulation of the Minister of the Environment of 1 September 2016 on the manner of conducting the assessment of pollution of the earth surface.
  12. Kaszycki, P., Głodniok, M., Petryszak, P (2021), Towards a bio-based circular economy in organic waste management and wastewater treatment – the Polish perspective. N Biotechnol, 61, pp. 80–89. DOI:10.1016/j.nbt.2020.11.005
  13. Ko, H., Kim, K., Kim, H., Kim, Ch., & Umeda, M. (2008). Evaluation of compost parameters and heavy metals contents in composts made from Animals mature. Waste. Manage., 28, pp. 813–820. DOI: 10.1016/j.wasman.2007.05.010
  14. Krzyżak, J., Pogrzeba, M., Rusinowski, S., Clifton-Brown, J., McCALMONT, J. P., Kiesel, A., & Mos, M. (2017). Heavy metal uptake by novel Miscanthus seed-based hybrids cultivated in heavy metal contaminated soil. CEER, 26(3), pp. 121–132. DOI: 10.1515/ceer-2017-0040
  15. Miaomiao, H., Wenhong, L., Xinqiang, L., Donglei, W., & Guangming, T. (2009). Effect of composting process on phytotoxicity and speciation of copper, zinc and lead in sewage sludge and swine manure. Waste Manage., 29, pp. 590–597. DOI:10.1016/j.wasman.2008.07.005
  16. Obidoska, G., Hadam, A. (2008). Phytotoxicity of composts produced from various urban wastes. Ann. Warsaw Univ. Life Sci. – SGGW, Horticult. Landsc. Architect., 29, pp. 65–70.
  17. OECD/ OCDE 208 ¬¬– Guidelines for the testing of chemicals. Terrestrial Plant Test: Seedling Emergence and Seedling Growth Test.
  18. PN-EN ISO 11269-1:2013-06 Soil quality. Determination of the effect of pollutants on soil flora - Method for measuring root growth inhibition. PN-EN ISO 11269-2:2013-06 Soil quality. Determination of the effect of pollutants on soil flora - Effect of chemical compounds on the emergence and growth of higher plants.
  19. Pogrzeba, M., Rusinowski, S., & Krzyżak, J. (2018). Macroelements and heavy metals content in energy crops cultivated on contaminated soil under different fertilization—case studies on autumn harvest. Environ Sci Pollut Res., 25(12), pp. 12096–12106. DOI: 10.1007/s11356-018-1490-8
  20. Preite, V., Sailer, C., Syllwasschy, L., Bray, S., Ahmadi, H., Krämer, U., & Yant, L. (2019). Convergent evolution in Arabidopsis halleri and Arabidopsis arenosa on calamine metalliferous soils. Philos. Trans. R. Soc. B, 374, pp. 20180243. DOI:10.1098/rstb.2018.0243
  21. Ren, Y., Lin, M., Liu, Q., Zhang, Z., Fei X., Xiao R., Lv X. (2021). Contamination assessment, health risk evaluation, and source identification of heavy metals in the soil-rice system of typical agricultural regions on the southeast coast of China. Environmental Science and Pollution Research, 28(10), 12870–12880. DOI:10.1007/s11356-020-11229-6
  22. Rosik-Dulewska, C., Głowala, K., Karwaczyńska, U., & Szydło, E (2006). The mobility of chosen pollutants from ash-sludge mixtures. Polish J. Environ. Stud., 15(6), pp. 895–904.
  23. Rosik-Dulewska, Cz., Karwaczyńska, U., & Głowala, K. (2007). Natural use of municipal sewage sludge and compost from municipal waste - fertilization value and environmental hazards. Zesz. Nauk. Wydz. Bud. i Inż. Środ., 23, pp. 137–153. (in Polish)
  24. Sarkheil, H., & Azimi, Y. (2020). Evaluation of Plant Roots Ability to Remove Lead and Zink Mining Drainage Contamination by Geoelectric Surveys. In NSG2020 3rd Conference on Geophysics for Mineral Exploration and Mining, 2020(1), pp. 1–4. European Association of Geoscientists & Engineers. DOI:10.3997/2214-4609.202020020
  25. Sawicka, B., Kotiuk, E. (2006). Evaluation of health safety of mustards in the obligatory norms. Acta Sci. Pol., Technol. Alim., 5(2), pp. 165–177.
  26. Skubała, K. (2011). Vascular Flora of Sites Contaminated with Heavy Metals on the Expample of Two Post-Industrial Spoil Heaps Connected with Manufacturing of Zinc and Lead Products in Upper Silesia. Archives of Environmental Protection, 37(1), pp. 57–74.
  27. Smol, M., Kulczycka, J., Lelek, Ł., Gorazda, K., & Wzorek, Z. (2020). Life Cycle Assessment (LCA) of the integrated technology for the phosphorus recovery from sewage sludge ash (SSA) and fertilizers production. Archives of Environmental Protection, 46(2). DOI: 10.24425/aep.2020.133473
  28. Tran, K. Q., Werle, S., Trinh, T. T., Magdziarz, A., Sobek, S., & Pogrzeba, M. (2020). Fuel characterization and thermal degradation kinetics of biomass from phytoremediation plants. Biomass and Bioenergy, 134, 105469. DOI:10.1016/j.biombioe.2020.105469
  29. Vimala, T., & Poonghuzhali, T. (2015). Estimation of pigments from seaweeds by using acetone and DMSO. IJSR, 4(10), pp. 1850–1854.
  30. Wójcik, M., Gonnelli, C., Selvi, F., Dresler, S., Rostański, A., & Vangronsveld, J. (2017). Metallophytes of serpentine and calamine soils–their unique ecophysiology and potential for phytoremediation. Adv. Bot. Res, 83, pp. 1–42. DOI:10.1016/bs.abr.2016.12.002
  31. Zawadzki, P., Głodniok, M. (2021), Environmental Safety Assessment of Fertilizer Products, Pol. J. Environ. Stud. 30(1):11–22. DOI:10.15244/pjoes/120519
  32. Zeynep, G. D. (2019). Role of EDDS and ZnO-nanoparticles in wheat exposed to TiO2Ag-nanoparticles. Archives of Environmental Protection, 45(4), pp. 78–83. DOI: 10.24425/aep.2019.130244
  33. Zhang, Z., Wu, X., Wu, Q., Huang, X., Zhang, J., Fang, H. (2020). Speciation and accumulation pattern of heavy metals from soil to rice at different growth stages in farmland of southwestern China. Environmental Science and Pollution Research, 27(28), 35675–35691. DOI:10.1007/s11356-020-09711-2
Go to article

Authors and Affiliations

Anna Borgulat
1
Aleksandra Zagórska
1
Marcin Głodniok
1

  1. Central Mining Institute, Department of Water Protection, Katowice, Poland
Download PDF Download RIS Download Bibtex

Abstract

This paper outlines a method of determining the deformation and strength parameters for a hypothetical, homogeneous, substitute material which approximates the properties of heterogeneous materials in reinforced concrete elements. The model of the substitute material creates a concrete reference model, in which the static - strength - deformation parameters were modified on the basis of the homogenizing function with the homogenization coefficient assumed as the effective reinforcement ratio of the reinforced concrete structural elements. The results of the comparative analysis of the numerical models using the hypothetical substitute material with experimental results for statically loaded beams and deep beams taken from the literature are presented.

Go to article

Authors and Affiliations

J. Siwiński
A. Stolarski
Download PDF Download RIS Download Bibtex

Abstract

The article is about substitute coins issued by Jan Turno in his demesne in Słomowo. The author presents a short history of the Turno family and the short biography of Jan Turno, and then explains the circumstances of the issue of the substitute money from Słomowo in Greater Poland, Oborniki County.
Go to article

Authors and Affiliations

Bartłomiej Czyżewski
ORCID: ORCID
Download PDF Download RIS Download Bibtex

Abstract

The paper discusses the method of the substitution by homophones that is extensively used in many fields in China, among others onomastics, such as toponymy or anthroponymy. The Chinese language has always contained a considerable number of homophones, i.e. words pronounced alike but spelt/written differently and having different meanings. The situation resulted from two main factors: the nature of the Chinese language and the sound changes to spoken Chinese language, i.e. a strong tendency to sound simplification. The method of the substitution by homophones is mainly aimed at reshaping already existing names by replacing their previous form, for some reasons unwanted. However, it is also broadly applied to create new names by using words which are homophonic with the words denoting the idea they symbolize. The paper presents some various reasons and aims of the use of the method in the domain of Chinese geographical names, and the more detailed analysis of its use in the changing of old street (hutong) names after 1949 in Beijing. The research material consists of 1,159 hutong names, and the names changed by the use of the method accounts for 23.5% of the total.

Go to article

Authors and Affiliations

Irena Kałużyńska
Download PDF Download RIS Download Bibtex

Abstract

This paper presents a test stand equipped, among others, with two boilers intended for the combustion of solid fuels. The first is a single-fuel boiler designed to burn wood pellets only. The second is a multi-fuel boiler intended for the combustion of mainly hard coal (basic fuel) with the grain size of 0.005–0.025 m. Wood pellets can also be fired in this boiler, which in such a case are treated as a substitute fuel. There is a developed and verified algorithm for the control of the multi-fuel boiler operation in a wide range of loads for the basic fuel. However, for the substitute fuel (wood pellets) there are no documented and confirmed results of such testing. The paper presents selected results of testing performed during the combustion of wood pellets in a multi-fuel automatically stoked boiler. Several measuring series were carried out, for which optimal operating conditions were indicated. These conditions may serve as the basis for the development of the boiler operation control algorithm. A detailed analysis was carried out of the flue gas temperatures obtained at the outlet of the boiler combustion chamber and of the contents of carbon monoxide and oxygen in the boiler flue gases.
Go to article

Bibliography

[1] Announcement of the Sejm Speaker of the Republic of Poland on the promulgation of a consolidated text of the Act on renewable energy sources. Journal of Laws – Republic of Poland (Dziennik Ustaw Rzeczypospolitej Polskiej) 2021, Item 610 (in Polish).
[2] Regulation of the Minister of Development and Finance on the requirements for solid-fuel boilers. Journal of Laws – Republic of Poland (Dziennik Ustaw Rzeczypospolitej Polskiej) 2017, Item 1690 (in Polish).
[3] EN 303-5:2021: Heating boilers – Part 5: Heating boilers for solid fuels, manually and automatically stoked, nominal heat output of up to 500 kW – Terminology, requirements, testing and marking.
[4] Poland’s Energy Policy until 2040. Ministry of Climate and the Environment, Appendix to Resolution 22/2021 of the Council of Ministers, 2021 (in Polish).
[5] Commission Regulation (EU) 2019/2146 amending Regulation (EC) 1099/2008 of the European Parliament and of the Council on energy statistics, as regards the implementation of updates for the annual, monthly and short-term monthly energy statistics. OJ L 325, 16.12.2019.
[6] Directive (EU) 2018/2001 of the European Parliament and of the Council on the promotion of the use of energy from renewable sources. OJ L 328, 21.12.2018.
[7] Zima W., Ojczyk G.: Current status and prospects for solid multi-fuel boilers of low power. Rynek Energii 5(2013), 108, 50–56 (in Polish).
[8] Juszczak M., Pałaszynska K., Rolirad K., Janicki M., Szczechowiak E.: Attempt to use additives increasing ash melting point while firing agricultural biomass pellets in order to avoid slag production in the furnace. Ciepłownictwo, Ogrzewnictwo, Wentylacja 48(2017), 8, 320–326 (in Polish).
[9] Ciupek B., Urbaniak R., Judt W.: Experimental research of changes in co, nox and pm concentrations in flue gases during combustion of wood pellets with wheat seeds. Ciepłownictwo, Ogrzewnictwo, Wentylacja 50(2019), 2, 56–61.
[10] Orłowska A., Sroka K.: Changes in legal regulations concerning supplying households with heat. Rynek Energii 140(2019), 1, 38–47.
[11] Zima W., Ojczyk G.: Analysis of combustion of wood pellets as a substitute fuel in a low-power boiler. Arch. Combust. 35(2015), 2, 117–130.
[12] Ziebik A., Stanek W.: Energy effciency – selected thermo-ecological problems. Arch. Thermodyn. 41(2020), 2, 277–299.
[13] https://www.herz-energie.at/pl/ (accessed 6 Sept. 2021).
[14] http://www.ogniwobiecz.com.pl/ (accessed 12 Sept. 2021).
[15] Ecological Safety Mark: Certificate 1035. Inst. Chem. Process. Coal, Zabrze 2009 (in Polish).
[16] https://www.keison.co.uk/ (accessed 17 Aug. 2021).
[17] Kuznetsov N.V., Mitor V.V., Dubovsky I.E., Karasina E.S. (Eds.): Thermal Calculation of Steam Boilers. Normative Method (2nd Edn.). Energia, Moscow 1973 (in Russian).
[18] Rutkowski Ł., Szczygieł I.: Calculation of the furnace exit gas temperature of stoker fired boilers. Arch. Thermodyn. 42(2021), 3, 3–24.


Go to article

Authors and Affiliations

Wiesław Zima
1
Grzegorz Ojczyk
2

  1. Cracow University of Technology, Department of Energy, al. Jana Pawła II 37, 31-864 Kraków, Poland
  2. MTHE Modern Technologies in Heating Engineering, Młynska-Boczna 7/2, 31-470 Kraków, Poland
Download PDF Download RIS Download Bibtex

Abstract

The aim of the paper is to present the theory of meaning formulated by Roman Ingarden in the Controversy over the Existence of the World, The Literary Work of Art, and in The Cognition of the Literary Work of Art. When this has been done here, I test Ingarden’s theory by applying it to selected problems of contemporary philosophy of language. These problems include the semantics of empty names, the controversy between Millianism and descriptivism over the nature of proper names, the problem of substitutability in intensional contexts, meaning holism, compositionality, and the boundary between semantics and pragmatics. My analysis of these problems within the framework of Ingarden’s theory and my presentation of their solutions as delivered by G. Frege, K. Ajdukiewicz, W.V. Quine and D. Davidson shed interesting light on this extremely complex and ‘fine‑grained’ theory based on Ingarden’s original ontology. Although Ingarden’s theory does not fall within the dominant current of language philosophy, it offers a solution to the problem of empty names, the relation of proper names to definite descriptions, and substitutability. The theory is not holistic nor does it blur the distinction between semantics and pragmatics. Unfortunately, Ingarden’s theory is not compositional and reifies meanings, which may be seen as a serious objection to it. Therefore, the assessment of this theory cannot be unequivocal.
Go to article

Authors and Affiliations

Janusz Maciaszek
1
ORCID: ORCID

  1. Uniwersytet Łódzki, Instytut Filozofii, ul. Lindleya 3/5, 90-131 Łódź
Download PDF Download RIS Download Bibtex

Abstract

The single-phase voltage loss is a common fault. Once the voltage-loss failure occurs, the amount of electrical energy will not be measured, but it is to be calculated so as to protect the interest of the power supplier. Two automatic calculation methods, the power substitution and the voltage substitution, are introduced in this paper. Considering the lack of quantitative analysis of the calculation error of the voltage substitution method, the grid traversal method and MATLAB tool are applied to solve the problem. The theoretical analysis indicates that the calculation error is closely related to the voltage unbalance factor and the power factor, and the maximum calculation error is about 6% when the power system operates normally. To verify the theoretical analysis, two three-phase electrical energy metering devices have been developed, and verification tests have been carried out in both the lab and field conditions. The lab testing results are consistent with the theoretical ones, and the field testing results show that the calculation errors are generally below 0.2%, that is correct in most cases.

Go to article

Authors and Affiliations

Han-miao Cheng
Zhong-dong Wang
Qi-xin Cai
Xiao-quan Lu
Yu-xiang Gao
Rui-peng Song
Zheng-qi Tian
Xiao-xing Mu
Download PDF Download RIS Download Bibtex

Abstract

Following G. Bellmann, the article divides the German loanwords in Czech and Slovak roughly into two groups, namely those lexical units that represent a basic code extension (= type A) and those that are used immediately after adoption as (approximately) synonymous lexical duplicates of already existing designations (= type B). While type A words have the best chances of lasting integration, type B words elicit a competitive situation between old and new designations, which can result in substitution, negative integration or semantic diversification. Furthermore, the paper deals with idiosyncrasies of German loanword integration such as the expressiveness of German loanwords in Czech and Slovak and the emotional attitude towards German loanwords in those languages. The article also discusses the causality of displacement and substitution of German loanwords, subsequently elaborates on the loss of terms and realities, the change in domain-specific language use, the role of language awareness and language culture, the loss of immediate contact areas as well as the question of prestige, and concludes with an outlook on future developments.

Go to article

Authors and Affiliations

Stefan Michael Newerkla
Download PDF Download RIS Download Bibtex

Abstract

In this paper cation arrangement in two samples of aluminoceladonite, emerald‑green and dark-green were studied by Mössbauer, Raman and X-ray photoelectron spectroscopies. The X-ray photoelectron spectroscopy (XPS) spectra obtained in the region of the Si2p, Al2p, Fe2p, K2p, and O1s core levels provided information, for the first time highlighting a route to identify the position of Si, Al, K, and Fe cations in a structure of layered silicates. The XPS analysis showed the presence of Al in tetrahedral and octahedral coordination while the K2p line indicated the possibility of K+ substitution by other cations in interlayer sites. Mössbauer spectroscopy provided information about crystal chemistry with respect to the local electronic and geometric environment around the Fe atom and to distortions of the polyhedra. It turned out that iron was located mostly in the cis-octahedra position wherein about 75% of iron appeared in the form of Fe 3+. The most preferred cation combinations around Fe corresponded to 3Fe 3+ ions and MgFe 2+Fe 3+/2MgFe 3+. Raman spectroscopy illustrated aluminium substitution in silicon and iron positions wherein the concentration of the aluminium determined the degree of structural distortion within the layered system. These isomorphic substitutions implied a typical band arrangement in the hydroxyl region, which has not been observed in celadonites so far.
Go to article

Authors and Affiliations

Mariola Kądziołka-Gaweł
1
Mateusz Dulski
2
Maria Czaja
3
Tomasz Krzykawski
3
Magdalena Szubka
1

  1. Institute of Physics, University of Silesia, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
  2. Institute of Material Science, University of Silesia, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
  3. Faculty of Earth Sciences, University of Silesia, Będzińska 60, 41-200 Sosnowiec, Poland

This page uses 'cookies'. Learn more