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Stanisław Kowalczyk and Małgorzata Turowska

REFERENCES [1] BORSÍK, J.—HOLOS, J.: Some properties of porouscontinuous functions, Math. Slovaca 64 (2014), 741–750. [2] DOLŽENKO, E. P.: Boundary properties of arbitrary functions, Math. USSR. Izv. 31 (1967), 3–14. (In Russian) [3] KOWALCZYK, S.—NOWAKOWSKA, K.: A note on ϱ-upper continuous functions , Tatra Mt. Math. Publ. 44 (2009), 153–158. [4] ZAJÍČEK, L.: Porosity and σ-porosity , Real Anal. Exchange 13 (1987/88), 314–350

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Martin Bajčičák and Roland Šuba

References 1. CLARSON, K. D. and all. 2002. Modeling of porosity formation and feeding flow in steel casting . Chicago: Steel Founders’ Society of America. 2. TIAN, C. and all. 2002. Effect of melt cleanliness on the formation of porosity defects in automotive aluminium high pressure die castings. Journal of Materials Processing Technology , 122 (1), pp. 82-93. 3. SHIPING, W. and all. 2003. Numerical simulation of off-centered porosity formation of TiAl-based alloy exhaust valve during vertical centrifugal casting. Modelling and simulation

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T. Tracz

porosity to predict the moisture transport properties of hardened cement paste”, Adv. Cem. Based Mater. 6, 123–129 (1997). [5] M. Krus, K.K. Hansen, and H.M. Künzel, “Porosity and liquid absorption of cement paste”, Mater. Struct. 30, 394–398 (1997). [6] B.K. Nyame and J.M. Illston, “Capillary pore structure and permeability of hardened cement paste”, in 7th Int. Congr. Chem. Cem. Vol. 3 , p. VI-181‒185, (1980). [7] D. Winslow and D. Liu, “The pore structure of paste in concrete”, Cem. Concr. Res. 20, 227–235 (1990). [8] L. Czarnecki and P

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Hana Středová, Jana Podhrázská, Tomáš Litschmann, Tomáš Středa and Jaroslav Rožnovský

V., 2009: Spatial modeling of windbreak effects on wind erosion in South Patagonia, Argentina. Master thesis Land Degradation and Development Group. Wageningen University, 60 p. Forman R. T. T., 1995: Land mosaic: the ecology of landscapes and regions. Cambridge University Press, Cambridge, UK, 182-184. Fu M. H., Jiang F. Q., Yang R. Y., 1992: Study on porosity of poplar shelterbelts and its application in belts tending felling. In: Jiang F. Q. (ed). Management techniques and theoretical basics for shelterbelts. Chinese Forestry

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M. Brůna, A. Sládek and L. Kucharčík

alloys. Met. Mater. Trans. 33A p. 2095. Couturier, G. & Rappaz, M. (2006). Modeling of porosity formation in multicomponent alloys in the presence of several dissolved gases and volatile solute elements. In TMS, Symposium on Simulation of Aluminium Shape Casting Processing.

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Mirosława Bukowska, Urszula Sanetra and Mariusz Wadas

variability of porosity and strength of hard coals of Upper Silesian Basin. Gospodarka Surowcami Mineralnymi – Mineral Resources Management 28(4), pp. 151–166 ( in Polish ). Chodyniecka i in. 1993 – Chodyniecka, L., Gabzdyl, W. and Kapuściński, T. 1993. Mineralogia i petrografia dla górników (Mineralogy and petrography for miners) . Wydawnictwo Politechniki Śląskiej. Gliwice. Ceglarska-Stefańska i in. 1995 – Ceglarska-Stefańska, G., Stachurski, J. and Vogt E. 1995. Porosity of the Polish Hard Coals. Archives of Mining Sciences 40(3). Czapliński, A

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R. Wojnar

districts of the Ukraine", Symposium of Hannoversch-Münden 1, 252-270 (1959). L. F. Athy, "Density, porosity, and compaction of sedimentary rocks", AAPG Bulletin - American Association of Petroleum Geologists 14 (1), 1-24 (1930). Blood flow: en.wikipedia.org/wiki/Blood_flow M. J. Allwood and H. S. Burry, "The effect of local temperature on blood flow in the human foot", J. Physiology 124 (2), 345-357 (1954). L. Landau and E. Lifszyc, Mechanics of Continuous

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M. Říhová, J. Cech and J. Havlíčková

References Bähr, R., Todte, M. & Stroppe, H. (2006). Prediction of the influence of microstructure, porosity and residual stresses on strength properties of aluminium castings. In World Foundry Congress, 2006. Stroppe, H. (2000). Einfluss der Porosität auf die mechanischen Eigenschaften von Gusslegierung. Giessereiforschung. 52, 58-60. Čech, J., Říhová, M. & Lefner, J. (2010). Evaluation of effect of technological and metallurgical factors on porosity of die-cast Al alloys

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S. Sobieszczyk

foam scaffold for bone repair. Acta Biomaterialia, 1 (2005), 523-533. Karageorgiou V., Kaplan D.: Porosity of 3D biomaterial scaffolds and osteogenesis. Biomaterials, 26 (2005), 5474-5491. Li J. P., Habibovic P., Doel M., Wilson C. E., Wijn J. R., Blitterswijk C. A., Groot K.: Bone ingrowth in porous titanium implants produced by 3D fiber deposition. Biomaterials, 28 (2007), 2810-2820. Alvarez K., Hyun S. K., Nakano T., Umakoshi Y., Nakajima H.: In vivo osteocompatibility of Lotus

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G. Leonardi

References 1. C. Atzeni, et al., A geometrical fractal model for the porosity and permeability of hydraulic cement pastes, Construction and Building Materials, 2010. 2. D.N. Winslow, The fractal nature of the surface of cement paste, Cement and Concrete Research, 15, pp. 817-824, 1985. 3. R.A. Livingston, Fractal nucleation and growth model for the hydration of tricalcium silicate, Cement and Concrete Research, 30, pp. 1853-1860, 2000. 4. D.A. Lange, et al., Image analysis techniques for