Characterization, Dilation, and Perturbation of Basic Continuous Frames by Xin Zhao, Pengtong Li

“…It is shown in this article that basic continuous frames and their oblique duals can be characterized by operators with closed ranges. Furthermore, we show that any oblique dual pair of basic continuous frames for a Hilbert space can be dilated to a Type II dual pair for a larger Hilbert space. …”
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ASSESSMENT OF THE RIVER RUNOFF CHANGES IN LENKORAN NATURE REGION by Ramiz M. Mamedov, Magamed A. Abduev

“…The paper presents the results of assessment of the Lenkoran Nature Region river water status change over the period from 1990 to 2017 based on observation data from 13 closing ranges. The computations were carried out with taking into account runoff data of the rivers. …”

Numerical and experimental analysis of body armor polymer penetration resistance against 7.62 mm bullet by Gebrewahid Asgedom, Kumlachew Yeneneh, Getu Tilahun, Besufekad Negash

“…Results showed that ECO-UHMWPE vests exhibited significantly lower stress values and minimal deformation, particularly at close ranges with high projectile kinetic energy, outperforming Kevlar vests. …”
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SDG11-Based Sustainability Assessment of Urban Communities: A Case Study of Changsha by Qin Shuqian, Zhang Nan, Zhu Peijuan, Zhang Yong, Zhang Chen

“…It is found that: (1) During the period 2010-2020, the degree of achievement of community SDG in Changsha falls in the "relative closeness" range, with a "core-periphery" spatial distribution from the high sections to the low ones. (2) Of the 7 goals, housing guarantee, disaster prevention and relief, and environmental governance are progressing well; public transportation and heritage protection are improving significantly; public space is rising slowly; however, planning management is less than ideal. (3) Based on the assessment results of the coupling coordination degree of the communities' economic-social-environmental systems, the sample communities are classified into three types: coordinated development, transitional development, and dysfunctional decline communities. …”
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