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A. Kandil,S. A. El-Sheikh,E. Said 원광대학교 기초자연과학연구소 2017 ANNALS OF FUZZY MATHEMATICS AND INFORMATICS Vol.14 No.6
In this paper, we introduce a new approach of proximity structure based on the grill notion. For $\G=P( X) \backslash \{ \phi \}$, we have the Efremovi\v{c} proximity structure and for the other types of $\G$, we have many types of proximity structures. Some results on these spaces have been obtained. Some of these results are : every $\G$-normal $T_{1}$space is $\G$-proximizable space (Theorem 3.8). Also, for such space, we show that it has a unique compatible $\G$-proximity under the condition that $X$ is compact relative to $\tau^{*}$ (Theorem 4.10). Finally, for a surjective map $f$ : $X\longrightarrow (Y,$ $\delta_{f(\G)})$ ($\G$ is a grill on $X$), we establish the largest $\G$-proximity $\delta_{\G}$ on $X$ for which the map $f$ is a $\G$-proximally continuous (Theorem 4.16).
Abdallah, Nadia M,Noaman, Eman,Eltahawy, Noaman A,Badawi, Abdelfattah M,Kandil, Eman,Mansour, NA,Mohamed, Hebatallah E Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.9
The objective of the present study was to evaluate the anticancer and radio-sensitizing efficacy of a Withania somnifera extract/Gadolinium III oxide nanocomposite (WSGNC) in mice. WSGNC was injected to solid Ehrlich carcinoma-bearing mice via i.p. (227 mg/kg body weight) 3 times/week during 3 weeks. Irradiation was performed by whole body fractionated exposure to 6Gy, applied in 3 doses of 2 Gy/week over 3 weeks. Biochemical analyses as well as DNA fragmentation were performed. Treatment of solid Ehrlich carcinoma bearing mice with WSGNC combined with ${\gamma}$-radiation led to a significant decrease in the tumor size and weight associated with a significant decrease in mitochondrial enzyme activities, GSH content and SOD activity as well as a significant increase in caspase-3 activity, MDA concentration and DNA fragmentation in cancer tissues. Combined treatment of WSGNC and low dose of ${\gamma}$-radiation showed great amelioration in lipid peroxidation and antioxidant status (GSH content and SOD activity) in liver tissues in animals bearing tumors. It is concluded that WSGNC can be considered as a radio-sensitizer and anticancer modulator, suggesting a possible role in reducing the radiation exposure dose during radiotherapy.
Agarwal Ashok,Cannarella Rossella,Saleh Ramadan,Harraz Ahmed M.,Kandil Hussein,Salvio Gianmaria,Boitrelle Florence,Kuroda Shinnosuke,Farkouh Ala’a,Rambhatla Amarnath,Zini Armand,Colpi Giovanni,Gül Mur 대한남성과학회 2023 The World Journal of Men's Health Vol.41 No.1
Purpose: Seminal oxidative stress (OS) is a recognized factor potentially associated with male infertility, but the efficacy of antioxidant (AOX) therapy is controversial and there is no consensus on its utility. Primary outcomes of this study were to in-vestigate the effect of AOX on spontaneous clinical pregnancy, live birth and miscarriage rates in male infertile patients. Sec-ondary outcomes were conventional semen parameters, sperm DNA fragmentation (SDF) and seminal OS. Materials and Methods: Literature search was performed using Scopus, PubMed, Ovid, Embase, and Cochrane databases. Only randomized controlled trials (RCTs) were included and the meta-analysis was conducted according to PRISMA guide-lines. Results: We assessed for eligibility 1,307 abstracts, and 45 RCTs were finally included, for a total of 4,332 infertile patients. We found a significantly higher pregnancy rate in patients treated with AOX compared to placebo-treated or untreated con-trols, without significant inter-study heterogeneity. No effects on live-birth or miscarriage rates were observed in four studies. A significantly higher sperm concentration, sperm progressive motility, sperm total motility, and normal sperm morphology was found in patients compared to controls. We found no effect on SDF in analysis of three eligible studies. Seminal levels of total antioxidant capacity were significantly higher, while seminal malondialdehyde acid was significantly lower in patients than controls. These results did not change after exclusion of studies performed following varicocele repair. Conclusions: The present analysis upgrades the level of evidence favoring a recommendation for using AOX in male infertility to improve the spontaneous pregnancy rate and the conventional sperm parameters. The failure to demonstrate an increase in live-birth rate, despite an increase in pregnancy rates, is due to the very few RCTs specifically assessing the impact of AOX on live-birth rate. Therefore, further RCTs assessing the impact of AOX on live-birth rate and miscarriage rate, and SDF will be helpful.
M. M. Atta,Hesham M. H. Zakaly,N. Almousa,A. M. Abdel Reheem,M. Madani,Usama.F. Kandil,A. M. A. Henaish,Eman O. Taha 한국탄소학회 2023 Carbon Letters Vol.33 No.6
Flexible supercapacitors (FS) are ideal as power backups for upcoming stretchable electronics due to their high power density and good mechanical compliance. However, lacking technology for FS mass manufacturing is still a significant obstacle. The present study describes a novel method for preparing FS based on reduced graphene oxide (RGO) using the N+ plasma technique, in which N+ reduces graphene oxide on the surface of a cotton/polyester substrate. The effect of aloe vera (AV) as a natural reducing & capping agent and carbon nanotubes (CNT) as nanoconductors on the electrochemical performance of the electrodes is studied. FESEM and XPS were employed to investigate the electrodes' structural and chemical composition of electrodes. The galvanostatic charge–discharge curves of electrodes revealed the enhancement of the electrochemical activity of the as-prepared electrode upon additions of AV and CNT. The areal capacitance of the RGO, RGO/AV, and RGO/ AV/CNT supercapacitors at 5 mV/s was 511, 1244.5, and 1879 mF/cm2, respectively. The RGO electrode showed capacitive retention of 80.9% after 2000 cycles enhanced to 89.7% and 92% for RGO/AV and RGO/AV/CNT electrodes, respectively. The equivalent series resistance of the RGO electrode was 126.28 Ω, decreased to 56.62 and 40.06 Ω for RGO/AV and RGO/ AV/CNT electrodes, respectively.
Fuzzy soft hyperconnected spaces
A. Kandil,O. Tantawy,S. A. El-Sheikh,Sawsan S. S. El-Sayed 원광대학교 기초자연과학연구소 2017 ANNALS OF FUZZY MATHEMATICS AND INFORMATICS Vol.13 No.6
The purpose of this paper is to introduce concepts of fuzzy soft D-space, fuzzy soft extremally disconnected spaces and fuzzy soft hyperconnected spaces. The relationship between these concepts is investigated. The properties of fuzzy soft hyperconnected spaces are studied.
Pairwise soft separation axioms in soft bitopological spaces
A. Kandil,O. A. E. Tantawy,S. A. El-Sheikh,Shawqi A. Hazza 원광대학교 기초자연과학연구소 2017 ANNALS OF FUZZY MATHEMATICS AND INFORMATICS Vol.13 No.5
The motivation of the current paper is to define and study some soft separation axioms in soft bitopological spaces in terms of pairwise softness namely, pairwise soft $T^{*}_{0}$, pairwise soft $T^{*}_{1}$, pairwise soft $T^{*}_{2}$, and pairwise soft $R^{*}_{1}$. Characterizations and properties of these soft separation axioms have been obtained. Moreover, we study the implications of these types of soft separation axioms in soft and crisp cases. Finally, we show that these properties are hereditary.
$\tilde{I}$-proximity spaces based on soft sets
A. Kandil,S. A. El-Sheikh,E. Said 원광대학교 기초자연과학연구소 2018 ANNALS OF FUZZY MATHEMATICS AND INFORMATICS Vol.15 No.1
In this paper, we present a new structure of basic proximity of soft sets based on the notion of soft ideal. For $\tilde{I}=\{\tilde{\Phi}\},$ we have the basic proximity of soft sets and for other types of $\tilde{I}$ we obtain many types of basic proximity structure of soft sets. Also we redefine this structure by using soft ideals. Some results of these spaces are: if $(X,E,\tau )$ is $\tilde{I}$% -soft normal space and $(X,E,\tau ^{\ast })$ is $R_{0}^{^{\prime }}$-space, then there exists $\tilde{I}$-Lodato proximity of soft sets $\delta _{\tilde{I}}$ such that $\tau ^{\ast }=\tau _{\delta _{\tilde{I}}}$. Also the soft topology generated by $\tilde{I}$-basic proximity of soft sets is finer than the soft topology generated by $R_{0}^{^{\prime }}$-$\check{C}$ech closure operator of soft sets. Finally, for a bijective soft map $% f:(X,E_{1})\rightarrow (Y,E_{2},\delta _{f(\tilde{I})}),$ we construct the largest $\tilde{I}$-Lodato proximity of soft sets $\delta _{\tilde{I}}$ on $(X,E_{1})$ such that $f$ is $\tilde{I}$-proximally soft continuous mapping.
Micro-grid Monitoring and Supervision: Web-based SCADA Approach
Ali Mohamed A.,Barakat Mahmoud M.,Abokhalaf Masoud M.,Fadel Yasmin H.,Kandil Mohamed,Rasmy Mariam W.,Ali Osama N.,Besheer Ahmad H.,Emara Hassan M.,Bahgat Ahmed 대한전기학회 2021 Journal of Electrical Engineering & Technology Vol.16 No.5
Owing to the widespread use of the micro-grid concept to serve many real life applications, the main concern of this paper is to monitor, evaluate and manage the operational performance of an existent, already installed micro-grid that consists of On & Off grid PV systems in addition to the main grid supply. With the aid of customized web based SCADA system fully designed by authors, the performance evaluation of the proposed micro-grid is carried out in terms of energy consumption, power quality indices and energy cost based on Egypt’s energy current tariff . The designed system helps in both micro-grid status monitoring as well as load sharing between the main grid supply and the off grid PV energy system. The data of the on grid PV energy system are accessed and collected online directly from the inverter web server instead of downloading them offl ine from the PV inverter. In this case, data are analyzed with a reasonable refresh rate, which saves time and eff ort. Remote access platform is developed securely through a multi-level security authentication and strong data encryption using the OpenVPN protocol under the Dynamic Domain Name System service. Smart wired and wireless technology—used as integrated sensing devices to the developed SCADA system—enables easy system installation and running cost saving. Finally, to validate the collected data from the newly SCADA designed monitoring system, a performance characterization for the on grid PV system following international standards of yields calculations is carried out for 3 months in 2019.