كان لظهور اللسانيات بوصفها الدراسة العلمية للغة الأثر الكبير في شيوع المناهج التي تتناول العمل الأدبي من داخله؛ ذلك أن ّ اللغة هي الموضوع الأساس الذي ينطلق منه المحلل لكشف ماهية وطبيعة ووظيفة النص الشعري. ناقشّ هذا البحث ...
In this study, we report the thermoelectric power (TEP) measurements of Cu0.5Tl0.5Ba2Ca2Cu3O10-δ added with BaSnO3 nanoparticles. BaSnO3 nanoparticles were prepared by chemical co-precipitation method, while (BaSnO3)x/(CuT1)-1223 ...
Malaeb, Walid; Ishida, Yukiaki; Okazaki, Kozo; Ota, Yuuichi; Shin, Sik(Hamad bin Khalifa University Press, 2012-10)
Background: Superconductivity is the complete loss of electric resistance in some elements and compounds cooled below a transition temperature (Tc). Since its discovery more than 100 years ago, this phenomenon has enriched ...
Malaeb, W.; Yoshida, T.; Hashimoto, M.; Takizawa, M.; Ebata, K.; Fujimori, A.; Eisaki, H.; Kakeshita, T.; Sasagawa, T.; Uchida, S.(Institute of Physics Pub., 2008)
We have performed x-ray photoemission spectroscopy (XPS) measurements on the high-Tc superconductor La2-xSrxCuO4 (LSCO) at various temperatures. From the shifts of core-level spectra, we have deduced the temperature ...
Awad, R.; Abou-Aly, A. I.; Isber, S.; Malaeb, W.(Institute of Physics Pub., 2006)
We have investigated the effect of Na substitution at Ca sites on the lattice parameters, electrical resistivity, magnetic susceptibility and thermopower coefficient for TlBa2Ca2-xNaxCu3O9-δ; with 0 ⩽ x ⩽ 0.4. The lattice ...
(BaSnO3)x/Cu0.5Tl0.5Ba2Ca2Cu3O10-δ superconducting composites (0.00 ≤ x ≤ 1.50 wt.%) were prepared by the solid-state reaction technique. The crystalline structure and superconducting transition temperature were investigated ...
In this study, Y3-xCdxFe5O12 (0.0 ≤ × ≤0.2) powders were synthesized via the co-precipitation method at calcination temperature 1100 °C. The phase formation of YIG was confirmed from X-ray powder diffraction (XRD) and ...
We investigate the effect of ZnO nanoparticles (ZnO-N) mainly on the mechanical properties of zinc oxide eugenol (ZOE) cements compared to the commercially available bulk ZnO powder (ZnO-B). Our results revealed the ...
A series of (Cu0.5−xTl0.5−y)-1223 superconductor samples, doped with varying amounts of (CuF2)x and (TlF)y compounds with x = y = 0.0, 0.1, 0.2, 0.3 and 0.4, were synthesized via a single-step solid-state reaction. X-ray ...
In this study, Yttrium Iron Garnet (Y3Fe5O12) (YIG) powders were synthesized via co-precipitation method, followed by calcining the precipitates at 1100˚C. The garnets produced were obtained from aqueous iron and yttrium ...
The effect of Arsenic substitution on the properties of Bi-2212 superconductors was studied. Solid-state reaction technique was used for the synthesis of Bi2−xAsxSr2Ca1.1Cu2.1O8 samples, x = 0, 0.1, 0.2 and 0.4. The X-ray ...
There is still great interest in studying high intensity discharge (HID) lamps despite the great development of other light sources like light emitting diodes (LEDs). Basic equations and numerical formulations allow ...
Salman, Zeina(Lebanese American University, 2024-12-09)
Clostridioides difficile infection (CDI) induces severe intestinal inflammation, mediated partly by the NF-κB signaling pathway. Flagellin (FliC), a major component of C. difficile flagella, plays a pivotal role in ...
Oneissi, Zeina(Lebanese American University, 2024-12-19)
Glioblastoma multiforme (GBM) is a highly aggressive and heterogenous brain tumor classified as grade IV, with a poor prognosis and limited effective treatment options. Due to the elevated metabolic requirements of tumor ...
Chahrour, Yara H.(Lebanese American University, 2024-12-19)
Atherosclerosis is an inflammatory disease that involves the accumulation of lipid
deposits, cholesterol, and several other substances within the arterial wall. This
buildup of what is known as the atherosclerotic plaque ...
We have implemented laser photoemission spectroscopy (PES) to investigate the electronic structure of the iron-based superconductor (La,Eu)FeAsO1-xFx (LaEu1111) which is an interesting compound in the “1111” family showing ...
We have been investigating the effect of (CoFe2O4)x and (ZnFe2O4)x (x is the wt%) nano-sized ferrites on the superconducting (SC) properties of the high-Tc SC compound GdBa2Cu3O7-δ (Gd123) prepared by the conventional ...
The low-energy electronic structure of LaFeAsO1−𝑥H𝑥 (0.0≤𝑥≤0.60), a system which exhibits two superconducting domes and antiferromagnetic orders in its phase diagram, is investigated by utilizing laser photoemission ...
Srour, A.; Awad, R.; Malaeb, W.; Barakat, M. ME.(2017-11)
The influence of barium tin oxide nanoparticles addition on the structural and superconducting properties of the Cu_{0.5}Tl_{0.5}Ba2Ca2Cu3O_{10{-}δ } phase, (CuTl)-1223, was studied. A different wt% of BaSnO3, ranging from ...
Srour, A.; Malaeb, W.; Rekaby, M.; Awad, R.(2017-09-13)
In this study, we carried out the Vickers microhardness for Cu0.5Tl0.5Ba2Ca2Cu3O10−δ, (Cu0.5Tl0.5)-1223 superconducting phase added with BaSnO3 nanoparticles. BaSnO3 nanoparticles were prepared by the co-precipitation ...