Wyniki wyszukiwania - Biblioteka Nauki

1

Napęd elektryczny na morzu

100%

Szmit E.

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tom R. 9, nr 7/8

148-154

PL

Zastosowanie napędu elektrycznego zawsze cieszyło się zainteresowaniem producentów i użytkowników środków transportu. Już w pierwszej połowie dziewiętnastego wieku fizyk niemieckiego pochodzenia - Moritz Hermann Jacobi, profesor uczelni w Dorpacie (Estonia) i członek Akademii Nauk w Petersburgu, w Rosji zwany Borysem - zastosował swój wynalazek - silnik komutatorowy zasilany z baterii ogniw galwanicznych do napędu łodzi pływającej po Newie. Podobnie było w innych dziedzinach transportu. W drugiej połowie dziewiętnastego wieku Werner Siemens zbudował pierwszą lokomotywę elektryczną, by kilka lat później uruchomić tramwaje elektryczne na ulicach Berlina, natomiast w rok po tym wydarzeniu fizyk angielski W.E. Ayrton zbudował pierwszy samochód z napędem elektrycznym.

2

Nadzorowana produkcja okrętowego wyposażenia elektrycznego

100%

Szmit E.

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tom R. 8, nr 1

74-78

PL

Współczesny statek lub okręt, przemieszczając się po morzach całego świata, często w ciągu stosunkowo krótkiego czasu narażony jest na oddziaływanie zmiennego środowiska naturalnego, np. temperatur i wilgotności. Dodatkowo zainstalowane na jednostce pływającej mechanizmy maszynowe i obsługujące je urządzenia elektryczne wytwarzają specyficzne środowisko, które powoduje innego rodzaju narażenia.

3

Development tendencies of the new generation classification rules for ecological floating docks in the PRS conceptions

51%

Bastian E. , Bogdaniuk M. , Szmit E.

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tom S 1

56-60

EN

This paper presents main differences between an ecological floating dock and classical one. The differences will find their appropriate representation in the Rules for the classification and construction of floating docks in the form of requirements to be fulfilled by the dock. They consist in fitting the ecological dock with systems for collecting the contaminations generated during ship repair work on the dock, storing them in tanks, as well as with tight closing the dock’s working space by means of roofing.

4

Electric power quality and ship's safety

51%

Mindykowski J. , Szmit E. , Tarasiuk T.

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tom Vol. 15

351-360

EN

The proposed paper is to introduce the problem of electrical power quality in ships' networks and its connection with ship's safety. The issue of electrical energy quality on ships has seemed of utmost importance, in particular nowadays when a great progress in implementation of electric drives for ship's thrusters, propellers and other smaller drives is evident. These loads can cause enormous, indiscernible waveform distortions. The aforementioned disturbances can be hazardous for important receivers as well as electrical energy sources, especially with addition of other disturbances such as voltage and frequency variations or voltage unbalance. Some examples of the real research of a voltage quality on ships will be presented and commented on. In shorthand, the disturbances affect a whole ship, its crew, passengers and cargo safety. In the wake of the issue, the requirements of PRS and other classification societes as well as IEC standarts for ships' networks determine parameters of electrical energy, especially voltage, must not be exceeded. But there is some confusion in this matter, especiallyin the wake of the real observed waveform distortions in ship's systems. Moreover, the standarts do not specify how and when those parameters are to be controlled. Hitherto onboard measuring instruments for electric power systems are not sufficient for the present time demands as they are for measuring a few basic parameters but cannot register waveform distortions, even in basic range like respective harmonic level (albeit there are some exemptions lately).Presently, representatives of Gdynia Maritime University and Polski Rejestr Statków (Polish Register of Shipping) try to systemize their experience and solution proposals in that field. Their preliminary research and findings will be presented and commented on.

5

Diagnostyka izolowanego systemu elektroenergetycznego na przykładzie jednostki pływającej

51%

Mindykowski J. , Tarasiuk T. , Szmit E. , Czarkowski D.

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tom nr 2(38)

171-176

PL

Publikacja omawia zaawansowane techniki diagnostyczne wykorzystywane do pomiarów jakości energii elektrycznej w izolowanych systemach elektroenergetycznych stosowanych na jednostkach pływających, małych wyspach, terenach zajętych przez strony walczące itp. W publikacji zawarto obserwacje poczynione podczas dotychczasowej współpracy oraz badań prowadzonych na trzech różnych obiektach pływających, z których jeden był tzw. all electric ship, gdzie podstawową część odbiorników energii elektrycznej stanowiły obwody nieliniowe, posiadające zasadniczy wpływ na parametry jakości energii elektrycznej.

EN

Publication treats of advanced diagnostic technologies used for electrical power quality measurements in isolated electrical power systems, applied on ships, small islands, territories occupied by fighting sides, etc. Publication includes observations made during the present cooperation and tests carried out onboard three different ships, which one of them was all electric ship, where main part of power consumers were non-linear circuits having principle influence on the parameters of electrical power quality.

6

Development tendencies of the new generation classification rules for ecological floating docks in the PRS conceptions

51%

Bastian E. , Bodganiuk M. , Szmit E.

|

nr Special Issue

EN

This paper presents main differences between an ecological floating dock and classic alone.The differences will find their appropriate representation in the Rules for the classification and construction of floatingdocks in the form of requirements to be fulfilled by the dock. They consist in fitting the ecological dock with systems for collecting the contaminations generated during ship repair work on the dock, storing them in tanks, as well as with tight closing the dock’s working space by means of roofing

7

Anti-tumor action of tumor necrosis factor against Bomirski Ab melanoma in hamsters

51%

Koszalka P. , Szmit E. , Mysliwski A. , Bigda J.

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nr 4

8

The effect of angiogenesis inhibitor TNP-470 on the blood vessels of the lungs, kidneys and livers of treated hamsters

51%

Mysliwski A. , Kubasik-Juraniec J. , Koszalka P. , Szmit E.

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nr 1

EN

The growth of solid tumours and their metastases is dependent on the development of new blood vessels (angiogenesis). Therefore angiogenesis inhibitors are potential antitumour drugs. In our previous studies it was found that the angiogenesis inhibitor TNP-470 given to transplantable melanoma-bearing hamsters can decrease the rate of the tumour growth, although the survival time of the animals treated was not significantly affected. It was found finally that TNP-470 given in the vicinity of the growing tumour can cause complete remission of the melanoma in hamsters treated in this way. To check what side-effects could be evoked by such treatment, an examination of the morphology of the blood vessels of the lungs, kidneys and livers of the treated animals was carried out. It was found that the angiogenesis inhibitor applied did not cause any changes which could be observed by light and electron microscopes in the structure of the examined blood vessels of the treated animals.

9

CD4plus CD25plus T regulatory cells decrease the cytotoxicity of CD8 HIGHplus T lymhocytes but not that of NK cells against the antigens of the anti-influenza vaccine

45%

Trzonkowski P. , Szmit E. , Mysliwska J. , Dobyszuk A. , Mysliwski A.

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nr Suppl.