Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Berna Bülbül"'
Publikováno v:
Nanochemistry Research, Vol 5, Iss 2, Pp 154-167 (2020)
M3(OH)2V2O7·nH2O ( M : Co, Ni, Cu, Zn) nanostructures were synthesized by a simple and economic chemical precipitation route. For Co and Ni compounds, very small (~9 nm), irregularly shaped and poor crystalline nanoparticles occurred, probably due t
Externí odkaz:
https://doaj.org/article/bd93eb92b579408a8be36435577d2671
Autor:
Mustafa OKUMUS, Berna BÜLBÜL
Publikováno v:
Gazi Üniversitesi Fen Bilimleri Dergisi, Vol 8, Iss 2, Pp 405-417 (2020)
In this study, different ratios of SiC reinforced Al4.5Cu alloy matrix composites were produced by mechanical alloying method at different grinding times. The effect of reinforcement amount and grinding time on thermal and structural properties of th
Externí odkaz:
https://doaj.org/article/28ac53a1ecef471f9f25c3785f008b45
Autor:
Berna Bülbül, Mehmet Sezer
Publikováno v:
Journal of Applied Mathematics, Vol 2013 (2013)
We have suggested a numerical approach, which is based on an improved Taylor matrix method, for solving Duffing differential equations. The method is based on the approximation by the truncated Taylor series about center zero. Duffing equation and co
Externí odkaz:
https://doaj.org/article/1f99a97a5cb749918f39aa4e8247b06e
Autor:
Mustafa Okumuş, Berna Bülbül
Publikováno v:
Volume: 8, Issue: 2 405-417
Gazi University Journal of Science Part C: Design and Technology
Gazi University Journal of Science Part C: Design and Technology
Bu çalışmada, farklı oranlarda SiC takviyeli Al4.5Cu alaşım matrisli kompozitleri farklı öğütme sürelerinde mekanik alaşımlama yöntemiyle üretilmiştir. Katkı miktarının ve öğütme süresinin kompozitin termal ve yapısal özellik
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::427bcae8033b3e1e43396fd4bb24cb72
https://doi.org/10.29109/gujsc.704063
https://doi.org/10.29109/gujsc.704063
Autor:
Berna Bülbül, Seda Beyaz
Publikováno v:
Materials Science-Poland, Vol 38, Iss 1, Pp 138-142 (2020)
Amorphous lead metaborate (Pb(BO2)2 H2O) nanostructures were synthesized by a simpl and cost-effective synthesis method which is based on precipitation of lead ions using boric acid/sodium hydroxide buffer (pH 9.2) in the presence of polyethylene gly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f339b7aa52a15edf733dc2599e4ea046
https://doaj.org/article/ef4afd8f1dcf4427a65f3c63984c674f
https://doaj.org/article/ef4afd8f1dcf4427a65f3c63984c674f
Publikováno v:
Chemical Papers. 74:2449-2459
Lanthanide nanoborates (LnBO3·3H2O (Ln: Dy, Tb)) were prepared in the presence of polyethylene glycol (PEG) using a buffered-precipitation method. The same procedure was performed without adding PEG to expose the chemical formulations of the samples
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ffb79dc0610f265da4361ad0c131775
https://doi.org/10.1007/s11696-020-01081-w
https://doi.org/10.1007/s11696-020-01081-w
Autor:
MUSTAFA OKUMUŞ, Berna Bülbül
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e5779d9429a0d48b823f8f9419f0838
https://doi.org/10.2139/ssrn.4082693
https://doi.org/10.2139/ssrn.4082693
Autor:
Mustafa Okumuş, Berna Bülbül
Publikováno v:
Wear. :204511
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::387b2fab0fbd908704551186bf15d5f8
https://doi.org/10.1016/j.wear.2022.204511
https://doi.org/10.1016/j.wear.2022.204511
Preparation of water-soluble amorphous erbium borate (ErBO3.3H2O) nanoparticles with positive charge
Publikováno v:
Chemical Papers. 74:1009-1017
We report a simple one-step protocol for the preparation of nearly monodisperse and highly water-soluble erbium borate nanoparticles through a co-precipitation method. Erbium ions were precipitated by boric acid/sodium hydroxide buffer with a pH of 9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::079f5fc76ee5c62c5cdceea6fc1b3a0a
https://doi.org/10.1007/s11696-019-00940-5
https://doi.org/10.1007/s11696-019-00940-5
Autor:
Berna Bülbül
Publikováno v:
Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 21:766-776
Bu çalışmada ilk defa amorf ve nano-yapılı HoBO3.2.8H2O bileşiği, tamponlu-çöktürme yöntemiyle başarılı bir şekilde sentezlendi. Sentezlenen bileşiğin FTIR spektrumunda, 1393 cm-1 ([BO3] asimetrik gerilme), 935 cm-1 ([BO3] simetrik g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ff38d7d71c0c671d0edaf67ee8ffb43
https://doi.org/10.25092/baunfbed.651000
https://doi.org/10.25092/baunfbed.651000