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  • 18 篇 英文
检索条件"作者=A m el SHErBiNi"
18 条 记 录,以下是1-10 订阅
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Plasma ignition threshold disparity between silver nanoparticle-based target and bulk silver target at different laser wavelengths
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Plasma Science and Technology 2019年 第1期21卷 63-71页
作者: a m el sherbini m m HAGRASS m R m RIZK E A el-BADAWY Laboratory of Laser and New materials Faculty of Science Cairo University Faculty of Engineering Electrical Engineering Department Alexandria University
Plasma ignition threshold of nanoparticle-based and bulk silver targets was measured in air. The plasma was initiated by a Nd:YAG laser at wavelengths of 355, 532, and 1064 nm. The plasma ignition was monitored utiliz... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Spectrometric measurement of Plasma Parameters Utilizing the Target Ambient Gas O I &N I Atomic Lines in LIBS Experiment
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Optics and Photonics Journal 2012年 第4期2卷 286-293页
作者: Ashraf m. el sherbini Abdel Aziz Saad Al Amer Ahmed T. Hassan Tharwat m. el sherbini Department of Physics Collage of Science Al Imam Muhammad Ibn Saud Islamic University (AIMSIU) Al Riyadh KSA Laboratory of lasers and New materials (LLNm) Department of physics Faculty of Science Cairo University Giza Egypt
In this article, we shall report the results of the spectroscopic measurements of the plasma parameters utilizing the spectral lines emitted from the air atoms surrounding plasma (O I line at 777.19 nm and N I at 746.... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
measurements of Plasma electron Temperature Utilizing magnesium Lines Appeared in Laser Produced Aluminum Plasma in Air
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Optics and Photonics Journal 2012年 第4期2卷 278-285页
作者: Ashraf m. el sherbini Abdel Aziz S. Al Aamer Ahmed T. Hassan Tharwat m. el sherbini Department of Physics Collage of Science Al Imam Muhammad Ibn Saud Islamic University (AIMSIU) Al Riyadh KSA Laboratory of lasers and New materials (LLNm) Department of physics Faculty of Science Cairo University Giza Egypt
We have utilized the relative intensity of magnesium lines originated from the mg I at 285.2 nm and mg II at 280.27, 279.55 nm to measure the plasma electron temperature. The plasma was produced via interaction of Nd:... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Observed Enhancement in LIBS Signals from Nano vs. Bulk ZnO Targets: Comparative Study of Plasma Parameters
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World Journal of Nano Science and Engineering 2012年 第4期2卷 181-188页
作者: Ashraf m. el sherbini Abdel-Nasser m. Aboulfotouh Farid F. Rashid Sami H. Allam Ashraf el Dakrouri Tharwtt m. el sherbini Collage of Applied medical Science King Saud University KSA & the National Institute of Laser Enhanced Sciences Cairo University Giza Egypt Department of Laser and Opto-electronic Engineering University of Technology Baghdad Iraq Department of Physics Laboratory of Lasers and New Materials Faculty of Science Cairo University Giza Egypt
In this article, we will report an experimental evidence of enhanced LIBS emission upon replacing a Bulk-Based ZnO target by the corresponding Nano-Based target. The plasma was initiated via interaction of a Nd:YAG la... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Spectroscopic measurement of Stark broadening parameter of the 636.2 nm Zn I-line
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Natural Science 2013年 第4期5卷 501-507页
作者: Ashraf m. el sherbini Abdel-Nasser Aboulfotouh Farid Rashid Sami H. Allam Ahmed m. Al-Kaoud Ashraf el Dakrouri Tharwat m. el sherbini College of Applied medical Sciences King Saud University Riyadh KSA Department of Laser and Opto-electronic Engineering University of Technology Baghdad Iraq Department of Physics Collage of Science AL-Imam Muhammad Ibn Saud Islamic University (AIMSIU) Al Riyadh KSA Department of Physics Laboratory of Lasers and New Materials Faculty of Science Cairo University Giza Egypt
In this article we will present an attempt to measure the Stark broadening parameter of the Zn I-line at 636.23 nm utilizing the optical emission spectroscopy (OES) technique, taking into consideration the possibility... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Soft X-Ray Laser Gain from Neon like Gallium and Germanium
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Journal of modern Physics 2016年 第9期7卷 928-935页
作者: mohammad Z. mansour Wessameldin S. Abdelaziz Tharwat m. el sherbini National Institute of Laser Enhanced Sciences Cairo University Giza Egypt Laboratory of Lasers and New materials Faculty of Science Cairo University Giza Egypt
Gain coefficients are calculated for neon-like gallium and germanium ions. Shorter wavelengths are calculated and predicted to be emitted. The gain coefficients are calculated among 457 energy levels of the neon-like ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Gain Coefficient Calculation for Short Wave Laser Emission from Sodium like Co
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Optics and Photonics Journal 2013年 第8期3卷 369-378页
作者: Wessameldin S. Abdelaziz mai E. Ahmed mohamed Atta Khedr Tharwat m. el-sherbini Environmental Affairs Agency Cairo Egypt Laboratory of Lasers and New materials Cairo University Cairo Egypt National Institute of Laser Enhanced Sciences Cairo University Cairo Egypt
Level structure, oscillator strengths, transition probabilities and radiative life times are evaluated for 1s2 2s2 2p63l, 4l, 5l (l = 0, 1, 2, 3, 4) states in sodium like Co16+. The calculations are carried out using ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Association between IL-37 and VEGF Gene Expression in Psoriasis Pathogenesis in Egyptian Population
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Journal of Biosciences and medicines 2022年 第5期10卷 136-149页
作者: Sherif m. el-sherbini Ahmed Kh. S. Salama Laila A. Rashed mohamed H. Nafady Samir A. m. el-masry Genetic Engineering and Biotechnology Research Institute Al-Sadat University Al-Sadat Egypt Faculty of Applied medical science Misr University for Science and Technology Giza Egypt Faculty of medicine Cairo University Cairo Egypt
Background: Psoriasis is considered a common skin disease, marked by the production and elevation of inflammatory plaques that regularly shed scales resulting from extensive skin epithelial cell proliferation. T lymph... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
The Gain Distribution According to the Theoretical Structure and Decay Dynamics of Sodium like Cu
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Optics and Photonics Journal 2012年 第4期2卷 358-366页
作者: Wessameldin S. Abdelaziz mai E. Ahmed Ali S. Khalil mohammed Alshaik Ahmed Tharwat m. el-sherbini Al-Azhar University Gaza Palastine Environmental Affairs Agency Cairo Egypt Laboratory of Lasers and New materials Cairo University National Institute of Laser Enhanced Seiences Cairo University Tebin Institute for metrological studies Helwan Egypt
Level structure, oscillator strengths, transition probabilities and radiative life times are evaluated for 1s2 2s2 2p63l, 4l, 5l (l = 0, 1, 2, 3, 4) states in sodium like Cu18+. The calculations are carried out using ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Search for Laser Lines in Sodium like Fe Plasmas
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Optics and Photonics Journal 2012年 第4期2卷 314-317页
作者: Wessameldin S. Abdelaziz mai E. Ahmed Tharwat m. el-sherbini mohammed Alshaik Ahmed Ali S. Khalil Al-Azhar University in Palastine Ghaza Palastine Environmental Affairs Agency Cairo Egypt Laboratory of Lasers and New materials Cairo University Giza Egypt National Institute of Laser Enhanced Seiences Cairo University Giza Egypt 2Environmental Affairs Agency Cairo Egypt Tebin Institute for metrological Studies (TImS) Cairo Egypt
Energy levels, transition probabilities and effective collision strength for 1s2 2s2 2p6 3l, 4l, 5l (l = 0, 1, 2, 3, 4) states of sodium like Fe are used in the determination of the reduced populations for 21 fine str... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论