diskitis 发表于 2025-3-25 03:59:14
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Multivariate Analysis of Airborne Metallic Species in Sebele, Botswana,e) during the period of 02 April 2008–07 December 2008 and were analysed for concentrations of Al, Co, Cu, Fe, Pb, Mn, Ni and Zn using flame atomic absorption spectroscopy. Statistical receptor models were applied to investigate potential sources of the studied metals. Data exhibited enhanced enrich咒语 发表于 2025-3-25 17:19:35
An Optimization Procedure to Estimate the Permittivity of Ferrite-Polymer Composite,tituted Yttrium Iron Garnet nanoparticles in Poly-vinylidene-fluride (Sm-YIG-PVDF) composite samples. The optimization is taken as the optimized parameters that yield a minimum sum for the absolute differences between the calculated impedance obtained by using the permittivity calculated from Maxwel眉毛 发表于 2025-3-25 21:22:14
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,Long-time Asymptotic Estimate and a Related Inverse Source Problem for Time-Fractional Wave Equations,rict positivity/negativity of the solution for . under some sign conditions on initial values. As a direct application, we prove the uniqueness for a related inverse source problem on determining the temporal component.LUMEN 发表于 2025-3-26 13:08:50
http://reply.papertrans.cn/11/1023/102273/102273_29.pngabstemious 发表于 2025-3-26 17:31:19
The Development of Power Grid Digital Infrastructure Based on Fuzzy Comprehensive Evaluation,t the pertinence is not strong, the economic structure and the development of new digital infrastructure complement each other, the demand for social development is strong, but some areas lack core technology.