Wyniki wyszukiwania - Biblioteka Nauki

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Fundamenty palowe z sondowaniem CPT pod podstawą pala

100%

Trojnar K. , Siry A. , Puch F.

Mosty

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2021

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tom nr 3

26--30

PL

W artykule przedstawiono przykłady wykonania fundamentów palowych z użyciem innowacyjnej głowicy EGP. Wyposażenie wiertnicy palowej w specjalne czujniki oraz sondę CPT umieszczoną wewnątrz świdra przemieszczeniowego umożliwia prowadzenie pomiarów bezpośrednich w czasie robót palowych. Stosowanie technologii EGP ma zdecydowanie korzystny wpływ na jakość robót fundamentowych. Pozwala redukować koszt wykonania pali przy jednoczesnym zapewnieniu bezpieczeństwa posadowienia.

EN

The article presents examples of pile foundations with the use of the innovative EGP technology. The pile drilling rig with special sensors and the CPT probe placed inside the displacement auger enables direct measurements during piling works. The use of the EGP technology has a definitely beneficial effect on the quality of foundation works. It allows to reduce the cost of making piles while ensuring the safety of the foundation. The experience gathered so far from the Podkarpackie Region is of particular importance for the foundation of bridge supports on piles in situations where there are relatively thin layers of load-bearing soil in the ground or when there are justified doubts as to the condition of the ground under the foundations of already completed piles. In such cases, the use of EGP technology can help the piling operator make better decisions during the execution of individual piles on site.

2

IS CURRENT CZECH SOCIETY A SOCIAL CLASS-BASED SOCIETY? THE VALIDITY OF EGP AND ESEC CLASS SCHEMES

85%

Katrňák T.

Sociológia (Sociology)

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2012

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tom 44

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nr 6

678 – 703

EN

The subject of this article is the EGP and ESeC class schemes and their validity for Czech society. The basic question is to what extent these two schemes identify differences in occupational conditions in Czech society. In the first part of the article, the author presents EGP and ESeC schemes, focuses on their theoretical grounds, and looks at the criteria that define social classes within these frameworks. In the second part of the article, the author tests whether these two class schemes really measure what they are supposed to – the criterion validity of EGP and ESeC is tested. After that, the author examines how much the two class schemes predict other social variables on the basis of theoretical expectations – the construct validity of EGP and ESeC is tested. Finally the author compares these two class schemes. He discusses which of them are more appropriate explanatory instrument of occupational inequalities and the consequent differences in life outcomes in current Czech society.

3

VALIDITA SOCIÁLNO-TRIEDNYCH KLASIFIKÁCIÍ EGP, ESEC A ESEG V SLOVENSKEJ SPOLOČNOSTI

85%

Bunčák J. , Hrabovská A. , Sopóci J.

Sociológia (Sociology)

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2018

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tom 50

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nr 4

367 – 395

EN

The subject of this article is the EGP, ESeC and ESeG class schemes and their validity for Slovak society. The basic question is to what extent these three schemes identify differences in occupational conditions in Slovak society. In the first part of the article, authors present EGP, ESeC and ESeG schemes, focuses on their theoretical grounds, and look at the criteria that define social classes within these frameworks. In the second part of the article the authors test whether these three class schemes really measure what they are supposed to: the criterion validity of EGP, ESeC and ESeG is tested. After that, the authors examine how much the three class schemes predict other social variables on the basis of theoretical expectations: the construct validity of EGP, ESeC and ESeG is tested. Based on criterion validity testing, it proved to be the highest ESeC class scheme, based on the construct validity test, the EseC and ESeG class schemes was the most excellent. Finally the authors compare three class schemes and discuss which of them a more appropriate explanatory instrument of occupational inequalities in current Slovak society is.

4

Spectral analysis of Borowiec SLR data for spin determination of geodetic satellite EGP

85%

Kucharski D. , Schillak S. , Lim H. C. , Otsubo T.

Artificial Satellites : Journal of Planetary Geodesy

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2013

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tom Vol. 48, No. 1

15--23

EN

Borowiec 10 Hz Satellite Laser Ranging (SLR) station is capable to measure spin of the Japanese Experimental Geodetic Satellite (EGP). Spectral analysis of 391 passes measured from March 10, 1994 to November 27, 2009 gives frequency signal representing the 3rd and the 6th harmonics of the satellite spin rate. Analysis of this signal, corrected for the apparent effects, indicates en exponential slowing down of the satellite: the spin rate decreases according to the equation f = 671.115907 exp(-4.08324 x 10-5 D) [mHz], where D is a day after launch. More than 15 years of the SLR measurements allowed investigating the initial spin rate of the satellite fini = 671.116, RMS = 0.203 [mHz] (initial spin period Tini = 1.49006, RMS = 0.0007 [s]).

5

Field test on the effects of explosively generated plasma on aerial depth bombs PLAB- 250-120

80%

Miszczak M. , Warchoł R. , Gędziorowski M. , Piecuch M. , Grzeczka G.

Polish Hyperbaric Research

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2023

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tom nr 3(84)

27--40

EN

In order to gain access to the booster and main explosive charges of PLAB-250-120 aerial depth bombs, i.e. the TNT charge and the TGAF-5M explosive composition of TNT, hexogen (RDX), aluminum powder and phlegmatizing agent respectively, Explosively Generated Plasma (EGP) devices were used to perforate their steel bodies. EGP devices were made in two versions. The first used a cylindrical TNT charge, while the second used a cylindrical charge shaped from SEMTEX PW4 plastic explosive. The explosive charges were supported by waveguides with conical cavities tapering towards the bomb. The structural components of the EGP devices, i.e. the bodies housing the explosive charges and the waveguides, were made of plastic by 3D printing. The effects of the EGP on the bomb were studied depending on the explosive material used, its mass and the distance of the EGP device waveguide from the side surface of the bomb. Simultaneous firing of an array of two EGP devices inserted with SEMTEX PW4 explosive, contacted their waveguides with the bomb, resulted in its detonation, while simultaneous firing of the analogous array of the same type two EGP devices inserted with SEMTEX PW4 explosive, with their waveguides at a distance of 10 mm from the bomb, resulted in perforation of two circular through-holes in the bomb body. Firing single EGP device inserted with TNT, being in contact through its waveguide with the body of the bomb, resulted in local rupture of the bomb body with crushing the bomb explosive charges, so allowing easy access to bomb explosive charges and sampling them.

PL

W celu uzyskania dostępu do pośredniego i zasadniczego ładunku wybuchowego bomb głębinowych PŁAB-250-120, tj. odpowiednio ładunku trotylu (TNT) oraz kompozycji TGAF-5M składającej się z trotylu (TNT), heksogenu (RDX), proszku glinowego i flegmatyzatora, do perforacji ich stalowych korpusów zastosowano urządzenia wybuchowo generujące plazmę (ang. Explosively Generated Plasma - EGP). Urządzenia EGP wykonano w dwóch wersjach. W pierwszej zastosowano cylindryczny ładunek TNT, zaś w drugiej cylindryczny ładunek uformowany z plastycznego materiału wybuchowego SEMTEX PW4. Ładunki wybuchowe podparto falowodami o wnękach stożkowych zwężających się w kierunku bomby. Elementy konstrukcyjne urządzeń EGP, tj. korpusy ładunków wybuchowych oraz falowody wykonano z tworzywa sztucznego metodą druku 3D. Badano skutki działania EGP na bombę w zależności od zastosowanego materiału wybuchowego, jego masy oraz odległości falowodu urządzenia EGP od bocznej powierzchni bomby. Jednoczesne odpalenie układu dwóch urządzeń EGP zaelaborowanych materiałem wybuchowym SEMTEX PW4, przyłożonych falowodami do bomby spowodowało jej detonację, zaś jednoczesne odpalenie analogicznego układu takich samych urządzeń EGP, których falowody znajdowały się w odległości 10 mm od bomby skutkowało wybiciem dwóch kołowych otworów przelotowych w jej korpusie. Odpalanie pojedynczo urządzeń EGP zaelaborowanych TNT, przyłożonych falowodami do korpusu bomby powodowało lokalne rozerwanie korpusu i wykruszenie ładunków wybuchowych, umożliwiając łatwy dostęp do materiałów wybuchowych i pobranie ich próbek.