Temat: base contrast - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Efficiency of cropping system designs via base contrast
Autorzy:: Bronowicka-Mielniczuk, U.
Mielniczuk, J.
Przybysz, T.
Tematy:: cropping system experiment
inter-contrast
efficiency factor
base contrast; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Matematyczny PAN
Powiązania:: https://bibliotekanauki.pl/articles/1208129.pdf Link otwiera się w nowym oknie
Opis:: The present article is a continuation of previous papers by the same authors devoted to the efficiency of crop rotation experiments. We focus on plans distinguished by the cyclical pattern of the incidence matrix. For practical reasons, we slightly modify the efficiency coefficient. The relation between the resulting efficiency coefficients is examined. In addition, we provide a background material on crop rotation experiments.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: A brief overview and metallography for commonly used materials in aero jet engine construction
Autorzy:: Belan, J.
Vasko, A.
Kucharikova, L.
Tematy:: aluminium alloy
titanium alloy
nickel-base alloys
metallography procedures
B/W and colour contrast
stop aluminium
stop tytanu
stopy na bazie niklu
odczynnik trawiący; Pokaż więcej
Wydawca:: Stowarzyszenie Menedżerów Jakości i Produkcji
Powiązania:: https://bibliotekanauki.pl/articles/111670.pdf Link otwiera się w nowym oknie
Opis:: Aluminium, titanium, and nickel base alloys are mostly and widely used for aircraft jet engine construction. A proper evaluation of its microstructure is important from working safety point of view. To receive a well prepared sample of microstructure, some important steps have to be undertaken. Except for proper grinding and polishing of a sample, structure developing is a significant step, too. In order to develop microstructure various chemical reagents were used to achieve the best results for microstructure evaluation. The chemical reagents were used according to the previous knowledge and some new ones were also tested. Aluminium AK4-1č, titanium VT – 8, and nickel VŽL – 14 and ŽS6 – U alloys were used as an experimental materials. Alloy AK4-1č is used for fan blade production with working temperatures up to 300°C. It is a forged piece of metal machined down into final shape by five-axe milling machine. Alloy VT – 8 is used for high pressure compressor rotor blade production with working temperatures up to 500°C. Blades are forged as well and finally grinded. Finally nickel base alloys VŽL – 14 and ŽS6 – U are used for turbine blade production with working temperatures up 950°C. Blades for turbine are casted into mould with reducible models.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Informacja

Wyszukujesz frazę "base contrast" wg kryterium: Temat