Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Manuela Reben"'
Autor:
H.Y. Zahran, M.I. Mohammed, El Sayed Yousef, Mohammed S. Alqahtani, Manuela Reben, H. Algarni, Ahmad Umar, Hasan B. Albargi, I.S. Yahia, Mohamed Sh. Abdel-wahab, Medhat A. Ibrahim
Publikováno v:
Results in Physics, Vol 37, Iss , Pp 105488- (2022)
The radiation-protection properties of the magnetic semiconducting quaternary compounds Cu2CoGeS4, Cu2CoGeSe4, and Cu2CoGeTe4 were examined in this study by using Phy-X/PSD software with the selected gamma energy (0.015–15 MeV). The radiation shiel
Externí odkaz:
https://doaj.org/article/180bb245f7504b47b00428319a126b3b
Autor:
Norah A. Al saffar, Kamel Damak, Bilel Charfi, H. Algarni, Mohammed S. Alqahtani, A.M. Alshari, Manuela Reben, Hisham S.M. Abd-Rabboh, El Sayed Yousef
Publikováno v:
Results in Physics, Vol 34, Iss , Pp 105255- (2022)
Novel transparent glasses and glass-ceramics were fabricated by using melt-quenching technique with the following composition: TeO2–WO3–Nb2O5–KF–La2O3 doped with Tm2O3. Different properties and physical parameters of these glasses were invest
Externí odkaz:
https://doaj.org/article/2b33a92675d84985b89315b4cd38e8ba
Autor:
Bozena Burtan-Gwizdala, Manuela Reben, Jan Cisowski, Radosław Lisiecki, Bożena Jarząbek, Ali Alshehri, Khalid I. Hussein, El Sayed Yousef
Publikováno v:
Materials, Vol 16, Iss 3, p 925 (2023)
The shielding and spectroscopic properties of Pr+3 and Pr3+/Ho3+-codoped tellurite glass were investigated. The intensity parameters (Ω2 = 3.24-, Ω4 = 1.64-, Ω6 = 1.10 × 10−20 cm2) as well as the radiative lifetimes of 3F4 + 5S2 and 5I6 excited
Externí odkaz:
https://doaj.org/article/c901541fea6440658bbad5530f154abb
Autor:
N. Elkhoshkhany, Samir Marzouk, M. El–Sherbiny, Marihan Atef, Kamel Damak, Mohammed S. Alqahtani, H. Algarni, Manuela Reben, El Sayed Yousef
Publikováno v:
Results in Physics, Vol 31, Iss , Pp 104955- (2021)
This research investigates the influence of the concentration of Sm+3 ions on the properties of a new borosilicate glass system with the composition 50B2O3– 14SiO2- 20Li2O– 15Na2O– 1.0Al2O3-x(Sm2O3), where × = 100, 200, 300, 400, and 500 ppm.
Externí odkaz:
https://doaj.org/article/3f3c09333a3d4310a687730306691356
Autor:
N. Elkhoshkhany, Samir Marzouk, M. El–Sherbiny, Hend Anwer, Mohammed S. Alqahtani, H. Algarni, Manuela Reben, El Sayed Yousef
Publikováno v:
Results in Physics, Vol 27, Iss , Pp 104544- (2021)
We manufactured a new series of borosilicate glass doped with Dy3+ ions using a glass-quenching technique. To achieve the unique luminescence properties of our prepared glass, rare earth (Dy2O3) was incorporated into the glass matrix. The photolumine
Externí odkaz:
https://doaj.org/article/231a282fa02c4781b1fec52f0e88159b
Autor:
Bilel Charfi, Kamel Damak, Ramzi Maâlej, Mohammed S. Alqahtani, Khalid I. Hussein, Ali M. Alshehri, Abdulrahman M. Hussain, Bozena Burtan-Gwizdala, Manuela Reben, El Sayed Yousef
Publikováno v:
Materials, Vol 15, Iss 19, p 6518 (2022)
In the optical energy gap, visible and near-IR emission of halide phosphate glasses with a composition of 40P2O5-30ZnO-20LiCl-10BaF2 in mol% doped with 3.5 × 104 ppm Pr2O3, referred to as PZLBPr, were synthesized. The UV-VIS-NIR and spectroscopic pr
Externí odkaz:
https://doaj.org/article/e1b25a96509e499ab617b4d70c4c52f7
Autor:
Nehal Elkhoshkhany, Samir Marzouk, Mohammed El-Sherbiny, Heba Ibrahim, Bozena Burtan-Gwizdala, Mohammed S. Alqahtani, Khalid I. Hussien, Manuela Reben, El Sayed Yousef
Publikováno v:
Materials, Vol 15, Iss 15, p 5393 (2022)
A novel series of glass, consisting of B2O3, Bi2O3, TeO2, and TiO2 (BBTT) containing rare earth oxide RE2O3, where RE is La, Ce, Sm, Er, and Yb, was prepared. We investigated the structural, optical, and gamma attenuation properties of the resultant
Externí odkaz:
https://doaj.org/article/6e866a3d83904ee69223569312e7f8be
Autor:
N. Elkhoshkhany, Samir Marzouk, M. El–Sherbiny, Sally Yousri, Mohammed S. Alqahtani, H. Algarni, Manuela Reben, El Sayed Yousef
Publikováno v:
Results in Physics, Vol 24, Iss , Pp 104202- (2021)
Tellurite glass (TLZNT) with compositions 75TeO2–5Li2O–10ZnO–(10–x) Nb2O5−x Tm2O3, (doped with x = 0, 0.5, 1.0, 1.5, 2, and 2.5 in mol%) were prepared through the melt quenching technique. In the present work, the glass transition value sli
Externí odkaz:
https://doaj.org/article/9bc7a52522c94e8d9368edfc5f2368c7
Autor:
Khalid I. Hussein, Mohammed S. Alqahtani, Khloud J. Alzahrani, Heba Y. Zahran, Ali M. Alshehri, Ibrahim S. Yahia, Manuela Reben, El Sayed Yousef
Publikováno v:
Crystals, Vol 12, Iss 7, p 941 (2022)
The melt-quenching approach was used to prepare phosphate–titanite glasses with the composition P2O5-Na2O-CaO-8KF-CaCl2-xTiO2 (where x = 2, 4, and 6) in a mol %. The optical, physical, and shielding properties, such as the mass attenuation coeffici
Externí odkaz:
https://doaj.org/article/6b26e10f8f5446c4852f96c45ca1ad37
Autor:
Bilel Charfi, Kamel Damak, Mohammed S. Alqahtani, Khalid I. Hussein, Ali M. Alshehri, Nehal Elkhoshkhany, Abdullah L. Assiri, Khaled F. Alshehri, Manuela Reben, El Sayed Yousef
Publikováno v:
Photonics, Vol 9, Iss 6, p 406 (2022)
A new glass with a composition of 40P2O5-30ZnO-20LiCl-10BaF2 (in mol%), doped with 3.5Nd2O3-3.5Yb2O3, was fabricated by the quenching melt technique. The luminescence (PL) and gamma spectroscopy of the glass were investigated systematically. The spec
Externí odkaz:
https://doaj.org/article/48e4a7ffda134ec6aef9db6ed5956e02