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The Research of Acoustic Emission of a Low-Power Aircraft Engine

G and annex 16 Chapter 10 of ICAO Convention” („Pomiar hałasu zewnętrznego samolotów śmigłowych wg przepisów FAR 36 Appendix G oraz Rozdziału 10 Załącznika 16 Konwencji ICAO”), Prace Instytutu Lotnictwa, 221, pp. 109 - 114. [11] www.ulc.gov.pl , access: 05.2018. [12] Cieślak, S., Krzymień, W., 2018: “Drivetrain noise of the Gyroplane I-28” („Hałas układu napędowego wiatrakowca I-28”), Prace Instytutu Lotnictwa, 1(250), pp. 7-15. [13] Dzierżanowski, P., 1981: Reciprocating engines series aviation propulsion systems ( Silniki Tłokowe serii

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Experimental Verification of Numerical Calculations with the Use of Digital Image Correlation

BIBLIOGRAPHY [1] Osmęda, A., 2012, „Strength and construction analysis of aerospace test structure - Internal report (Analiza wytrzymałościowo-konstrukcyjna demonstratora, Raport wewnętrzny),” 05/BU/2012/TEBUK, Institute of Aviation, Warsaw. [2] Osmęda, A., 2016, “Result comparison of numerical analysis and structural tests of aerospace test structure (Porównanie wyników analiz numerycznych i prób wytrzymałościowych demonstratora struktury lotniczej),” Transactions of the Institute of Aviation, Warsaw, No. 244(3). pp. 123-134. [3] Bajurko, P

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Random analysis of bearing capacity of square footing using the LAS procedure

References [1] EN 1990:2002. Eurocode: Basis of structural design. CEN, European Committee for Standardization, Brussels. [2] FENTON G.A., GRIFFITHS D.V., Bearing-capacity prediction of spatially random c φ soils, Canadian Geotechnical Journal, 2003, 40(1), 54-65. [3] FENTON G.A., GRIFFITHS D.V., Risk Assessment in Geotechnical Engineering, John Wiley & Sons, New York 2008. [4] FENTON G.A., VANMARCKE E.H., Simulation of random fields via local average subdivision, Journal of Engineering Mechanics

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ON THE INTERPRETATION OF THE NEEDLE PROBE TEST RESULTS: THERMAL CONDUCTIVITY MEASUREMENT OF CLAYEY SOILS

References [1] ABRAMOWITZ M., STEGUN I.A., Handbook of mathematical functions, Dover Publications, Inc., New York 1972. [2] ASTM D5334-05 Standard, Standard Test Method for Determination of Thermal Conductivity of Soil and Soft Rock by Thermal Needle Probe Procedure, 2005. [3] CARSLAW H.S., JAEGER J.C., Conduction of heat in solids, Second edition, Oxford, Clarendon Press, 1959. [4] DE VRIES D.A., Heat transfer in soils, [in:] Heat and Mass Transfer in the Biosphere, I. Transfer Processes in

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Stress states caused in chamber of reinforced concrete grain silo by non-centric emptying on large eccentricities

reference factor, C op 0.5 a) Load combination I – symmetrical horizontal pressure and surface friction in connection with combination of randomly applied local loads on each silo ring respectively ( Fig. 5a) , Figure 5 Values of components of bulk solid pressure on the wall of the silo with diameter d c =10 m and height H =25 m during emptying on large eccentricities e 0(2) = 0 . 375 d c : a) Combination I; b) Combination II. b) Load combination II – non-symmetrical pressure on the chamber perimeter, taking into account the

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Numerical solution through mathematical modelling of unsteady MHD flow past a semi-infinite vertical moving plate with chemical reaction and radiation

) = u ′ ( t ′ ) V 0 , t = ρ V 0 2 μ t ′ ,     G r = μ g β ( T w − T ∞ ) ρ V 0 3 , G m = μ g β ′ ( C w − C ∞ ) ρ V 0 3 $$\begin{matrix}U\left( t \right)=\frac{{u}'\left( {{t}'} \right)}{{{V}_{0}}},t=\frac{\rho V_{0}^{2}}{\mu }{t}',\,\,Gr=\frac{\mu g\beta \left( {{T}_{w}}-{{T}_{\infty }} \right)}{\rho V_{0}^{3}}, \\Gm=\frac{\mu g{\beta }'\left( {{C}_{w}}-{{C}_{\infty }} \right)}{\rho V_{0}^{3}} \\\end{matrix}$$ (10) M = σ B 0 2 μ ρ 2 V 0 2 ,     K = K ′ V 0 2 ρ 2 μ 2 ,           γ = K 1 μ ρ V 0 2 ,       S c = μ ρ D , φ = Q 0 μ ρ 2 C p V 0 2

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Analysis of Prognosis of Lowland River Bed Erosion Based on Geotechnical Parameters

REFERENCES [1] B riaud J.-L., C hen H.-C., N urtjahyo Y., L i P., W ang J., Complex pier scour and contraction scour in cohesive soils , Transportation Research Board National Research Council. (NCHRP REPORT 24–15, 2003). [2] J acobs W., L e H ir P., V an K esteren W., C ann P., Erosion threshold of sand – mud mixtures , Continental Shelf Research, 2011, 31, 14–25. DOI: 10.1016/j.crs.2010.05.012. [3] M łynarek Z., Czynniki wpływające na opór stożka podczas statycznego sondowania gruntów spoistych , Poznań: Roczniki Akademii

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Failure Criterion for Brick Masonry: A Micro-Mechanics Approach

, International Journal of Analytical and Numerical Methods in Geomechanics, 2010, 34(3), 221-247, DOI: 10.1002/nag.799. [4] JAEGER J.C., Shear failure of anisotropic rocks , Geological Magazine, 1960, 97(1), 65-72. [5] KAWA M., PIETRUSZCZAK S., SHIEH-BEYGI B., Limit states for brick masonry based on homogenization approach , International Journal of Solids and Structures, 2008, 45 (3-4), 998-1016, DOI: 10.1016/ j.ijsolstr.2007.09.015. [6] MILANI G., LOURENCO P.B., TRALLI A., Homogenised limit analysis of masonry walls, part I: failure surfaces; part II: structural

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Efficiency of the Needle Probe Test for Evaluation of Thermal Conductivity of Composite Materials: Two-Scale Analysis

References [1] MOHSENIN N.N., Thermal properties of foods and agricultural materials, Gordon and Breach, New York, 1980. [2] CARSLAW H.S., JAEGER J.C., Conduction of heat in solids, Clarendon Press, Oxford, 1959. [3] RICHE F., SCHNEEBELI M., Microstructural change around a needle probe to measure thermal conductivity of snow, Journal of Glaciology, 2010, Vol. 56, No. 199. [4] FONTANA A.J., VERITH J., IKEDIALA J., REYES J., WACKER B., Thermal properties of selected foods using dual needle heat

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Effect of Geotextile Reinforcement on Shear Strength of Sandy Soil: Laboratory Study

triaxial tests of fiber-reinforced sand, Proceedings of the 4th Asian Regional Conference on Geosynthetics Shanghai, China, 2008. [12] CHEN X., ZHANG J., LI Z., Shear behaviour of a geogridreinforced coarse-grained soil based on large-scale triaxial tests, Geotextiles and Geomembranes, 2014, 42(4), 312-328, DOI: 10.1016/j.geotexmem.2014.05.004. [13] CONSOLI N.C., VENDRUSCOLO M.A., FONINI A., DALLA ROSA F., Fiber reinforcement effects on sand considering a wide cementation range, Geotextextiles and Geomembranes, 2009, 27 (3), 196-203, DOI

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