Autor: Krebs, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Artykuł

Skocz do pozycji: 2.

Tytuł:: The optimal sequence of production orders, taking into account the cost of delays
Autorzy:: Dylewski, R.
Jardzioch, A.
Krebs, I.
Powiązania:: https://bibliotekanauki.pl/articles/407417.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: scheduling algorithms
production control
minimum cost
delays
single-machine processing
Opis:: In flexible manufacturing systems the most important element in determining the proper course of technological processes, transport and storage is the control and planning subsystem. The key planning task is to determine the optimal sequence of production orders. This paper proposes a new method of determining the optimal sequence of production orders in view of the sum of the costs related to the delayed execution of orders. It takes into account the different unit costs of delays of individual orders and the amount of allowable delays of orders involving no delay costs. The optimum sequence of orders, in the single-machine problem, in view of the sum of the costs of delays may be significantly different from the optimal order, taking into account the sum of delay times.
Źródło:: Management and Production Engineering Review; 2016, 7, 2; 21-28
2080-8208
2082-1344
Pojawia się w:: Management and Production Engineering Review
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Influence of an Electric Field on Fine Properties of III-V and II-VI Quantum Dots Systems
Autorzy:: Kowalik, K.
Krebs, O.
Kudelski, A.
Golnik, A.
Lemaître, A.
Senellart, P.
Karczewski, G.
Kossut, J.
Gaj, J.
Voisin, P.
Powiązania:: https://bibliotekanauki.pl/articles/2038219.pdf
Data publikacji:: 2004-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.67.Hc
71.70.Ej
Opis:: We investigate the influence of an electric field on the optical properties of single quantum dots. For sample made of III-V compounds micron-size electro-optical structures were produced in order to apply an electric field in the dot plane. For several individual dots lines significant variations of the anisotropic exchange splitting with the field were observed. On sample made of II-VI compounds we demonstrate the influence of electric field fluctuations on the luminescence of a single quantum dot.
Źródło:: Acta Physica Polonica A; 2004, 106, 2; 177-184
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Optical Orientation of Trions in Charge-Tunable InAs/GaAs Quantum Dots
Autorzy:: Laurent, S.
Eble, B.
Krebs, O.
Lemaître, A.
Urbaszek, B.
Marie, X.
Amand, T.
Voisin, P.
Powiązania:: https://bibliotekanauki.pl/articles/2038221.pdf
Data publikacji:: 2004-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.70.-d
72.25.Fe
73.21.La
78.47.+p
Opis:: We report on optical orientation of excitons and trions (singly charged exciton) in individual charge-tunable self-assembled InAs/GaAs quantum dots. When the number of electrons varies from 0 to 2, the trion photoluminescence under quasi-resonant excitation gets progressively polarized from zero to ≈100%. We discuss this behavior as the efficient quenching of exciton spin quantum beats in anisotropic quantum dots due to the trion formation. This result indicates a long hole-spin relaxation time larger than the radiative lifetime, confirmed by time-resolved photoluminescence measurements carried out on a quantum dots ensemble.
Źródło:: Acta Physica Polonica A; 2004, 106, 2; 185-192
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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