Tác giả: Phòng Thông Tin Truyền Thông (Thông Tin Truyền Thông Phòng)

Abstract In this study, we investigate a nonsmooth and nonconvex optimization problem with an unbounded feasible set. Leveraging recent advancements in variational analysis at infinity, we establish novel necessary and sufficient optimality conditions formulated in terms of the normal cone and limiting subdifferentials at infinity. Moreover, by introducing newly defined sets, we analyze asymptotic conditions...

Abstract Cell surface receptors play vital roles in cancer growth and metastasis. Integrin αvβ3 is overexpressed in various cancer cells and interacts with different growth factors to stimulate cancer progression. Thyroid hormone binds to αvβ3 to activate signal transduction and cell proliferation. However, thyroxine (T4) deaminated analogue, tetraiodothyronine (tetrac), competes for the binding on integrin...

Abstract  This paper investigates conditions under which a matrix over an involutory division ring can be expressed as a product of Hermitian matrices, and estimates the minimal length of such factorizations. Let D be a division ring with center F and involution ⁎. Among others, we prove the following results: (1) every non-invertible square matrix over D is the product of...

Abstract Paper waste sludge (PWS) generated by the pulp and paper industry is a cellulose-rich residue that remains largely underutilized and presents disposal challenges. In this study, an integrated chemical–biological process was developed to valorize PWS into high-value bacterial cellulose (BC) through sulfuric acid–catalyzed hydrolysis followed by fermentation with Acetobacter xylinum. The hydrolysis step was statistically...

Abstract In this work, TiO2@g–C3N4 was synthesized and formulated as a novel ready-to-use screen-printable paste for water splitting applications. Various analytical methods were employed to examine the composition, morphological characteristics, and optical properties of the individual materials and the resulting heterojunction. Photoelectrochemical (PEC) water splitting was investigated under illumination of 100 mW cm-2 using linear chopped-light chronoamperometry...