Autor: Yagci, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Design of Istanbul disaster information system
Autorzy:: Torun, M. K.
Korkmaz, N.
Karaman, H.
Yagci, A.
Yildiz, S. S.
Ozkan, A.
Sahin, M.
Tari, E.
Powiązania:: https://bibliotekanauki.pl/articles/225748.pdf
Data publikacji:: 2006
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:: klęski żywiołowe
zarządzanie kryzysowe
Turcja
natural disasters
crisis management
Turkey
Źródło:: Reports on Geodesy; 2006, z. 5/80; 527-536
0867-3179
Pojawia się w:: Reports on Geodesy
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: In the jewelry, brazing and laser welding with parameter optimization
Optymalizacja parametrów lutowania i laserowego spawania jubilerskich stopów złota
Autorzy:: Kallek, M.
Ataoglu, S.
Yagci, Y.
Bozkurt, H. N.
Gulluoglu, A. N.
Powiązania:: https://bibliotekanauki.pl/articles/355007.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: spawanie laserowe
mikrostruktury
przemysł jubilerski
laser welding
brazing
jewelry
gold alloys
carat
Opis:: In this study, brazing and laser welding were experimentally compared for 9, 14 and 18 carat gold alloys in different color. The gold alloys were joined by laser welding and brazing and the microstructure, hardness, chemical composition, color of the weld joints were investigated. According to study, in laser welding, voltage, pulse duration, pulse diameter and frequency are the most important welding parameters that influence the quality of joints. Welded joints are characterized using three geometric parameters: penetration depth, width of heat affected zone and underfill defects. Finally, optimum laser welding parameters of different color of 9, 14 and 18 carat gold alloys were determined. It is observed that laser welding has numerous advantages compared to the other joining techniques used in the jewelry industry.
W pracy, porównano eksperymentalnie lutowanie i spawanie laserowe 9, 14 i 18 karatowych stopów złota o różnym kolorze. Zbadano mikrostrukturę, twardość, skład chemiczny i kolor połączeń. Wyniki badań spawania laserowego wskazują, że napięcie, czas trwania impulsu, średnica impulsu i częstotliwość to najważniejsze parametry, które wpływają na jakość połączeń. Spawane połączenia opisać można przy użyciu trzech geometrycznych parametrów: głębokość penetracji, szerokość strefy wpływu ciepła i defektów wypełnienia. Ustalono optymalne parametry spawania laserowego 9, 14 i 18 karatowych stopów złota o różnym kolorze. Stwierdzono, że spawanie laserowe ma wiele zalet w porównaniu do innych technik łączenia stosowanych w przemyśle jubilerskim.
Źródło:: Archives of Metallurgy and Materials; 2012, 57, 2; 525-536
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Chicken amyloid arthropathy: serum amyloid A, interleukin-1β, interleukin-6, tumour necrosis factor-α and nitric oxide profile in acute phase (12th hour)
Autorzy:: Sevimli, A.
Bulbul, T.
Bulbul, A.
Yagci, A.
Powiązania:: https://bibliotekanauki.pl/articles/31198.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: Acute phase response (APR) is part of the early defense system, which is triggered by different stimuli including, infection, trauma, stres, inflammation and neoplasia. The APR complex is a reaction which induces homeostasis and recovery. In this research, serum amyloid A (SAA), interlaukin (IL)-1β, IL-6, tumour necrosis factor alpha (TNF-α) and nitric oxide (NO) levels were measured 12 hours following injection. For this purpose, Thirty-two 5 weeks old laying chicken were allocated into four groups and intra-articular injections of Freund’s adjuvant were used to induce amylod arthropathy in Groups II, III and IV. Vitamin A in group II, and methylprednisolone in group IV were added to enhance and to reduce the severity of amyloidosis, respectively. At the end of the research, it was observed that TNF-α and NO increased significantly (P<0.05) in vitamin A and methylprednisolone groups whereas SAA decreased significantly (P<0.05) in all groups. It was also observed that IL-6 increased (P<0.05) in vitamin A group and decreased in all other gorups however, IL-1β decreased in vitamin A and methylprednisolone groups, while it was increased in the control group. The results of this study suggest that there is a positive correlation between serum TNF-α levels in acute and chronic phase in chickens with amyloid arthropathy.
Źródło:: Polish Journal of Veterinary Sciences; 2013, 16, 2
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Effect of Chip Amount on Microstructural and Mechanical Properties of A356 Aluminum Casting Alloy
Autorzy:: Kaya, A. Y.
Özaydın, O.
Yağcı, T.
Korkmaz, A.
Armakan, E.
Çulha, O.
Powiązania:: https://bibliotekanauki.pl/articles/2079825.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: A356
gravity casting
chip melting
mechanical properties
recycling
odlewanie grawitacyjne
topienie
właściwości mechaniczne
recykling
Opis:: Aluminum casting alloys are widely used in especially automotive, aerospace, and other industrial applications due to providing desired mechanical characteristics and their high specific strength properties. Along with the increase of application areas, the importance of recycling in aluminum alloys is also increasing. The amount of energy required for producing primary ingots is about ten times the amount of energy required for the production of recycled ingots. The large energy savings achieved by using the recycled ingots results in a significant reduction in the amount of greenhouse gas released to nature compared to primary ingot production. Production can be made by adding a certain amount of recycled ingot to the primary ingot so that the desired mechanical properties remain within the boundary conditions. In this study, by using the A356 alloy and chips with five different quantities (100% primary ingots, 30% recycled ingots + 70% primary ingots, 50% recycled ingots + 50% primary ingots, 70% recycled ingots + 30% primary ingots, 100% recycled ingots), the effect on mechanical properties has been examined and the maximum amount of chips that can be used in production has been determined. T6 heat treatment was applied to the samples obtained by the gravity casting method and the mechanical properties were compared depending on the amount of chips. Besides, microstructural examinations were carried out with optical microscopy techniques. As a result, it has been observed that while producing from primary ingots, adding 30% recycled ingot to the alloy composition improves the mechanical properties of the alloy such as yield strength and tensile strength to a certain extent. However, generally a downward pattern was observed with increasing recycled ingot amount.
Źródło:: Archives of Foundry Engineering; 2021, 21, 3; 19-26
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Yagci, A." wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język