Wyniki wyszukiwania

1

Modulus of elasticity of rapeseeds by edometric and acoustic methods

100%

Stasiak M., Molenda M., Horabik J.

Electronic Journal of Polish Agricultural Universities. Series Agricultural Engineering

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2006

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tom 09

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nr 4

2

Sea relation between a sea depth detected by acoustical methods and a nautical depth

100%

Gajewski L., Morgas W., Relisko J., Tegowski J.

Oceanological Studies

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2000

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tom 29

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nr 3

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Acoustic seabed classification applied to Baltic benthic habitat studies: a new approach

100%

Orlowski A.

Oceanologia

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2007

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tom 49

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nr 2

4

Perfection of methods of determination of type of defect at the ultrasonic control of elements of rolling stock of railways

84%

Kireev A., Kirichenko I.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2012

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tom 12

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nr 3

In the article a method allowing to promote authenticity of methods of determination of type of defect at diagnosing of elements of carriage part of rolling stock of railways by an ultrasonic impulsive echo-method is developed.

5

Non-resonant gas bubbles in sound backscattering and attenuation in the sea

84%

Szczucka J.

Oceanologia

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1991

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tom 31

6

Forecasting the echo-ranging reach in order to increase operational capacity in the naval defense zone of the Republic of Poland

67%

Grelowska G., Gloza I.

Polish Journal of Environmental Studies

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2005

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tom 14

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nr Suppl.1

Acoustic methods are the most effective in underwater search; nevertheless, their application in the southern Baltic is a far more complex task then under oceanic conditions. The knowledge of acoustic wave propagation under water finds a twofold application in the Navy. Firstly, it serves the purpose of increasing the possibilities of detection, observation and identification of objects moving under water, and secondly, it is used for passive defence by minimising the acoustic field of one’s own vessel. The paper presents results of research on conditions of acoustic wave propagation in the southern Baltic. The characteristics of acoustic climate of the Baltic and its anomalies has been prepared on the basis of echo ranging and hydroacoustic research from 1902-2004. Moreover, the effect of variability of spatial distribution of sound velocity on the propagation of acoustic waves has been shown, which determines the range of hydroacoustic devices and also the hydroacoustic field range of one’s own vessel.

Ograniczanie wyników

2 Oceanologia

1 Electronic Journal of Polish Agricultural Universities. Series Agricultural Engineering

1 Oceanological Studies

1 Polish Journal of Environmental Studies

1 Teka Komisji Motoryzacji i Energetyki Rolnictwa

1 Gajewski L.

1 Gloza I.

1 Grelowska G.

1 Horabik J.

1 Kireev A.

1 Kirichenko I.

1 Molenda M.

1 Morgas W.

1 Orlowski A.

1 Relisko J.

1 Stasiak M.

1 Szczucka J.

1 Tegowski J.

1 2012

1 2007

1 2006

1 2005

1 2000

1 1991

Modulus of elasticity of rapeseeds by edometric and acoustic methods

Sea relation between a sea depth detected by acoustical methods and a nautical depth

Acoustic seabed classification applied to Baltic benthic habitat studies: a new approach

Perfection of methods of determination of type of defect at the ultrasonic control of elements of rolling stock of railways

Non-resonant gas bubbles in sound backscattering and attenuation in the sea

Forecasting the echo-ranging reach in order to increase operational capacity in the naval defense zone of the Republic of Poland