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排序方式: 共有480条查询结果,搜索用时 15 毫秒
81.
Radiochemistry - Wadi El Reddah has radiation exposure due to the presence of different types of complexed rocks along with a huge sector of Hammamat sedimentary rocks, monzongranites of Gabal El... 相似文献
82.
Food Science and Biotechnology - The aim of this study was to produce ready to drink (RTD) iced teas from sage and linden. For this purpose, phenolics of sage and linden were extracted by... 相似文献
83.
Ahmed Abdelaal Ahmed Mahmoud M. Alkhatip Michail Georgakis Lucio R. Montero Valenzuela Mohamed Hamza Ehab Farag Jaqui Hodgkinson Hisham Hosny Ahmed M. Kamal Mohamed Wagih Amr Naguib Hany Yassin Haytham Algameel Mohamed Elayashy Mohamed Abdelhaq Mohamed I. Younis Hassan Mohamed Mohammed Abdulshafi Mohamed A. Elramely 《International journal of molecular sciences》2021,22(6)
SARS-CoV-2 currently lacks effective first-line drug treatment. We present promising data from in silico docking studies of new Methisazone compounds (modified with calcium, Ca; iron, Fe; magnesium, Mg; manganese, Mn; or zinc, Zn) designed to bind more strongly to key proteins involved in replication of SARS-CoV-2. In this in silico molecular docking study, we investigated the inhibiting role of Methisazone and the modified drugs against SARS-CoV-2 proteins: ribonucleic acid (RNA)-dependent RNA polymerase (RdRp), spike protein, papain-like protease (PlPr), and main protease (MPro). We found that the highest binding interactions were found with the spike protein (6VYB), with the highest overall binding being observed with Mn-bound Methisazone at −8.3 kcal/mol, followed by Zn and Ca at −8.0 kcal/mol, and Fe and Mg at −7.9 kcal/mol. We also found that the metal-modified Methisazone had higher affinity for PlPr and MPro. In addition, we identified multiple binding pockets that could be singly or multiply occupied on all proteins tested. The best binding energy was with Mn–Methisazone versus spike protein, and the largest cumulative increases in binding energies were found with PlPr. We suggest that further studies are warranted to identify whether these compounds may be effective for treatment and/or prophylaxis. 相似文献
84.
Salami Hamza Onoruoiza Bala Abubakar Sait Sadiq M. Ismail Idris 《The Journal of supercomputing》2021,77(11):13330-13357
The Journal of Supercomputing - The advent of virtualization technology has created a huge potential application for cloud computing. In virtualization, a large hardware resource is often broken... 相似文献
85.
Ahmed A. Hamza Taha Z. N. Sokkar Mohamed A. El-Bakary Muhamed A. Sewidan 《Polymer Engineering and Science》2020,60(8):1930-1939
An optomechanical characterization was carried out to investigate the influence of grafting polyamide-6 fibers with poly (methyl methacrylate) (PMMA) on their structural relationship properties. Intrinsic optical properties of the modified sample were determined using a method based on the cold drawing process. The Mach-Zehnder interferometer attached with mechanical drawing device was used to determine the refractive indices and birefringence of the polyamide-6 samples at different draw ratios. A graphical method was used to determine the intrinsic birefringence of modified polyamide-6 with PMMA and it was found to be 0.0673 which is less than pure polyamide-6. The resulting data was used to estimate some structural parameters such as the orientation function, optical orientation angle and structural constant. The drawing effect is more significant on the modified sample than on the pure sample. It was found that the grafting process produced a material with new properties that can be used in different applications. 相似文献
86.
Chaouche Rachid Sahnoune Houassine Hamza Moulahoum Samir Chaouche Moustafa Sahnoune Bensaid Samir 《Russian Journal of Nondestructive Testing》2022,58(6):488-498
Russian Journal of Nondestructive Testing - Transfer function and state-space model are two powerful complementary tools have been used to monitoring the physical system. These two ways can be very... 相似文献
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Experimental and theoretical studies of nocturnal cooling of water flowing through a night sky radiator unit were carried out. The system used for this study is two parallel plates night sky radiator with the top one (radiator) being a painted black aluminum plate. The radiator plate was covered by a polyethylene windscreen cover. The experimental study was conducted for a gravity flow open loop system. The parameters studied include the effect of average water mass flow rate, uncovered from the ambient versus covered supply warm water tank, and windscreen cover thickness on the performance. A new definition of the performance was expressed by an overall efficiency. A comparison between nocturnal cooling of stagnant and flowing water was also done. In the theoretical study a thorough radiation model was developed which calculates the radiation heat losses from both the cover and the radiator plate considering multiple reflections and absorptions between cover and plate. Energy balance was then applied on the cover, the radiator plate and the water. The cover and insulation were considered one lump each, while each of the radiator plate and the water were divided into discrete number of lumps. Energy storage in the radiator frame and insulation, and water elements was considered. Experimental results were used for verification of the theoretical model. 相似文献
90.