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991.
Ghorbanpour Monireh Soltani Behzad Shayanfar Ali Mota Ali Mehdizadeh Aghdam Elnaz Pirpour Tazehkand Abbas Ziegler Christopher J. 《Transition Metal Chemistry》2022,47(7-8):311-320
Transition Metal Chemistry - The development of suitable compounds for the effective treatment of cancer is highly demanded. Inorganic complexes based on cobalt and copper centers have revealed a... 相似文献
992.
M. Asif Zahoor Raja M. Shoaib Afkar Abbas M. Ijaz Khan C.G. Jagannatha Chetana Gali M.Y. Malik Mamdooh Alwetaishi 《印度化学会志》2022,99(7):100504
In this paper, the main focus of this research is to represent an intelligent computing model through an artificial backpropagated Levenberg-Marquardt neural network (ABP-LMNN) for entropy optimized magnetohydrodynamic fully developed nanofluid flow with slip and activation energy effects. In mathematical modeling, dimensionless non-linear ODEs represent the magnetohydrodynamic nanofluid flow model (MHD-NFM). A reference dataset of ABP-LMNN is constructed for diverse situations of MHD-NFM by discrepancy of parameters. The attained reference dataset (RD) is randomly utilized for validation, testing and training processes for ABP-LMNN are employed to examine the approximate solution of MHD-NFM is demonstrated by comparison of outcomes. The authentic performance of the ABP-LMNN is validated through accuracy in the phrase of error histogram, mean square error and regression learning. The thermal and solutal parameters upsurge both the thermal and the concentration gradients. Moreover, the velocity profiles are declined owing to an increase in the second-order slip parameter in the tangential direction of the flow. 相似文献
993.
Jalili Seyed AliReza Farshbaf Moghimi Mohammad Bagher Haghnejad Azar Kazem Najati Abbas Alavizadeh Razi Bahramnezhad Akbar 《Positivity》2020,24(1):117-127
Positivity - We investigate some properties of strongly order bounded operators. For example, we prove that if a Riesz space E is an ideal in $$E^{\sim \sim }$$ and F is a Dedekind complete Riesz... 相似文献
994.
Seddigheh Pourhosseini Abbas Ghasemizad Somayeh Rezaei Mohammad J. Jafari 《等离子体物理论文集》2021,61(8):e202100039
Generation of hot electrons (HEs) within ignitor pulse interaction with pre-compressed fuel is an important challenge in the shock ignition approach. Target optimization in order to prevent the destructive effects of HE is the main goal of the present work. In the first stage, the spectrum of electron energy generated during the interaction of ignitor pulse at different widths with the HiPER pre-compressed target has been estimated by applying particle simulation tool. Then, by changing the thickness of the cold fuel in the range of 185–225 μm, the corresponding areal densities are calculated using 1D hydrodynamic simulations. Finally, in order to assess the energy fusion yield, the iso-gain curves are obtained for different ignitor time windows as well as target thicknesses. Simulation results indicate that by decreasing the baseline, target thickness leads to a 17–70% increase in the fuel areal density. Subsequently, it has been demonstrated that by properly adjusting the parameters of ignitor pulse launch time and its width and employing a target with areal density high enough to stop the HEs, energy gain above 140 can be achieved. Optimal areas for shell thickness and ignitor time window are identified. 相似文献
995.
996.
The objective of the present work is to highlight the phenomena of strong gravitational lensing and deflection angle for the photon coupling with the Weyl tensor in a Kiselev black hole. Here, we have extended the prior work of Chen and Jing (S. Chen and J. Jing, JCAP, 10: 002 (2015)) for a Schwarzschild black hole to a Kiselev black hole. For this purpose, the equation of motion for the photons coupled to the Weyl tensor, null geodesic, and equation of photon sphere in a Kiselev black hole spacetime have been formulated. It is found that the equation of motion of the photons depends not only on the coupling between the photons and the Weyl tensor, but also on the polarization direction of the photons. There is a critical value of the coupling parameter, \begin{document}$ \alpha$\end{document} ![]()
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, for the existence of the marginally circular photon orbit outside the event horizon, which depends on the parameters of the black hole and the polarization direction of the photons. Further, the polarization directions of the coupled photons and the coupling parameter, \begin{document}$ \alpha$\end{document} ![]()
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; both modify the features of the photon sphere, angle of deflection, and functions \begin{document}$ (\bar{a}$\end{document} ![]()
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and \begin{document}$ \bar{b})$\end{document} ![]()
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owing to the strong gravitational lensing in the Kiselev black hole spacetime. In addition to this, the observable gravitational lensing quantities and the shadows of the Kiselev black hole spacetime are presented in detail. 相似文献
997.
Latif N. A. Abdel Abbas E. M. H. Farghaly T. A. Awad H. M. 《Russian Journal of Organic Chemistry》2020,56(6):1096-1107
Russian Journal of Organic Chemistry - Twenty new bithiazole derivatives were synthesized by condensation of... 相似文献
998.
Giannakis Dimitrios Ourmazd Abbas Slawinska Joanna Zhao Zhizhen 《Journal of Nonlinear Science》2019,29(5):2385-2445
Journal of Nonlinear Science - We present a data-driven framework for extracting complex spatiotemporal patterns generated by ergodic dynamical systems. Our approach, called vector-valued spectral... 相似文献
999.
Shekhar Singh Negi Syed Abbas Muslim Malik 《Mathematical Methods in the Applied Sciences》2020,43(15):9046-9079
Inspired by a well-known “Hilger-derivative” on time scale introduced by Stephan Hilger, we introduce a new derivative on the time scale, called “black delta (or in notation )-derivative.” It is an adaptive unified approach of derivative of continuous and discrete calculus. Several important nontrivial results concerning this derivative are obtained. Also, a necessary and sufficient condition for the existence of this new derivative and its connection with Hilger-derivative are discussed. In addition, a new general a-exponential function (for fixed a ≥ 1) is introduced to obtain the unique solution of the initial value problem on time scales with this derivative. Furthermore, a relation between the a-exponential function with the existing exponential function on the time scale is obtained. We elucidate the results by considering some interesting examples. We expect that this derivative will be applicable for future investigations on various studies in the field of mathematical modeling, engineering applications. 相似文献
1000.
Bilal Ul Amin Haojie Yu Li Wang Ahsan Nazir Shah Fahad Fazal Haq Sahid Mahmood Md Alim Uddin Tarig Elshaarani Di Shen 《无机化学与普通化学杂志》2020,646(20):1671-1678
Ferrocene-based (Fc-based) burning rate catalysts (BRCs) play an essential role in the solid rocket propellants. However, the migration problem during curing and storage limits their applications. To retard the migration problems of Fc-based BRCs and to increase the burning rate (BR) of AP-based propellants, Fc-based esters compounds (Es-Fcs) were synthesized. The synthesized Es-Fcs were characterized by X-ray diffraction, proton nuclear magnetic resonance (1H NMR),13C NMR and Fourier transform infrared (FT-IR) spectroscopy. The electrochemical behaviors of Es-Fcs were investigated by cyclic voltammetry (CV). The BR catalytic activity of Es-Fcs on thermal decomposition of AP were examined by thermogravimetry (TG). Thermal analysis results showed that these Es-Fcs had good BR catalytic effects on thermal decomposition of AP. It was found that the anti-migration performance of Es-Fcs were better than catocene and Fc. 相似文献