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Wyszukujesz frazę "Davies, H." wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
A consultative approach to charter party agreements based on virtual on time arrival
Autorzy:
Davies, H.
Bevan, S.
Powiązania:
https://bibliotekanauki.pl/articles/116955.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
economic aspects
charter party
charter party agreement
virtual nn time arrival
numerical weather prediction
Beaufort Force (BF)
Douglas Sea and Swell (DSS) scale
route optimization
Opis:
Charter Party agreements underpin the relationship between ship owners and charterers. The agreement guarantees the performance of a vessel in terms of speed and fuel consumption. On this basis the charterers plan the arrival of their cargo and their profit margin. However, ship performance is degraded by age, periods between maintenance and many vessels fail to perform as expected. Moreover the performance is only warranted during the specific conditions stated in the charter party which are not always clear. These usually refer to Beaufort Force (BF) and the Douglas Sea and Swell (DSS) scale which is archaic in the age of Numerical Weather Prediction. Given these conditions, the stage is set for conflict and there are often disputes over the weather conditions experienced. Moreover ships’ often do not arrive on time because the charterer has assumed that the ship will make good its warranted speed and not taken account of the forecast weather conditions. The authors propose a new way of approaching charter agreements with the emphasis on consultation rather than confrontation facilitated by a new web based software platform.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 303-308
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Motional Enhancement of Exciton Magnetic Moments
Autorzy:
Litvinov, A.
Kochereshko, V.
Cox, R. T.
Besombes, L.
Mariette, H.
Boukari, H.
Loginov, D.
Davies, J. J.
Smith, L. C.
Wolverson, D.
Powiązania:
https://bibliotekanauki.pl/articles/2047370.pdf
Data publikacji:
2007-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.35.Cc
71.35.Ji
71.36.+c
78.20.Ls
Opis:
The phenomenon in which giant enhancement of exciton magnetic moments occurs due to translational motion was found for light hole excitons in ZnTe/ZnMgTe quantum well structures. Decreasing diamagnetic shifts as the number of the exciton quantized state increases were found for the first time.
Źródło:
Acta Physica Polonica A; 2007, 112, 2; 161-165
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Excitonic Polaritons in Transverse Magnetic Fields
Autorzy:
Loginov, D.
Kochereshko, V. P.
Litvinov, A.
Besombes, L.
Mariette, H.
Davies, J. J.
Smith, L. C.
Wolverson, D.
Powiązania:
https://bibliotekanauki.pl/articles/2047705.pdf
Data publikacji:
2007-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.35.-y
71.35.Ji
78.20.Ls
78.67.De
Opis:
Reflectivity spectra taken from wide quantum wells based on CdTe/CdZnTe and GaAs/AlGaAs (in which the well width is much larger than the exciton Bohr radius) were studied in magnetic fields in the plane of the well (the Voigt geometry). The energy splitting between bright and dark excitons and the redistribution of the oscillator strength from bright to dark was observed and this allowed us to determine the exciton exchange constantΔ. We found that exciton translational mass depends on the value of magnetic field. Additionally, we found that diamagnetic shift also depends on exciton wave vector. Changes in the spectra in the range of the overlap of heavy and light hole exciton resonances were observed when the magnetic field was inverted. Theoretical modeling of the spectra allowed us to explain all the observed features in the reflectivity spectra and to determine some material parameters.
Źródło:
Acta Physica Polonica A; 2007, 112, 2; 381-386
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pressure Investigation of Tunneling in an InAlAs-InGaAs Double Barrier Structure
Autorzy:
Cury, L.
Dmowski, L. H.
Celeste, A.
Portal, J. C.
Davies, M.
Heath, M.
Sivco, D. L.
Cho, A. Y.
Powiązania:
https://bibliotekanauki.pl/articles/1879918.pdf
Data publikacji:
1991-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.35.+k
73.20.Dx
79.80.+w
Opis:
AnIn$\text{}_{0.52}$Al$\text{}_{0.48}$As-In$\text{}_{0.53}$Ga$\text{}_{0.47}$As double-barrier structure was studied under hydrostatic pressures up to 15 kbar. Two resonances in the I(V) curves are observed. The possible tunneling mechanisms to interpret this effect are analysed.
Źródło:
Acta Physica Polonica A; 1991, 79, 2-3; 199-202
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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