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The ZK–mZK–BBM equation plays a crucial role in actually depicting the gravity water waves with the long wave region. In this article, the bilinear forms of the (2 + 1)-dimensional ZK–mZK–BBM equation were derived using variable transformation. Then, the multiple soliton solutions of the ZK–mZK–BBM equation are obtained by bilinear forms and symbolic computation. Under complex conjugate transformations, quasi-soliton solutions and mixed solutions composed of one-soliton and one-quasi-soliton are derived from soliton solutions. These solutions are further studied graphically to observe the propagation characteristics of gravity water waves. The results enrich the research of gravity water wave in fluid mechanics.

为减缓葵花籽油进口对我国油葵产业的冲击，保障我国葵花籽油供给稳定，更好地满足我国居民对特色油脂不断增长的消费需求，在分析我国葵花籽油进口贸易特征的基础上，探究背后的成因并提出应对策略。结果表明：近年来，我国葵花籽油进口呈增长快、依存度高、来源地集中等特征；其原因主要有进口价格优势，国内产量增长慢，全球葵花籽生产分布相对集中。据此建议，扩大我国油葵种植面积，实现规模化种植，保障产量稳定增长；提高我国油葵生产效率，实现降本增效，提升国际竞争力；大力发展我国油葵压榨及相关产业，同时用好国外资源，有效满足我国葵花籽油的需求。 In order to mitigate the impact of sunflower seed oil import on China′s oil sunflower industry, ensure the stability of domestic sunflower seed oil supply, and better meet the growing consumption demand of Chinese residents for special oils, based on the analysis of the characteristics of domestic sunflower seed oil import trade, the underlying causes were explored and countermeasures were put forward. The results showed that in recent years, the import of sunflower seed oil in China was characterized by rapid growth, high dependence and concentrated source, and which were mainly caused by the import price advantage, the slow growth of domestic production and the relative concentration of global sunflower seed production distribution. Therefore, it was suggested to expand the planting area of oil sunflower in China, realize large-scale planting, ensure stable growth of output, improve domestic oil sunflower production efficiency, reduce cost and increase efficiency, enhance international competitiveness, vigorously develop domestic oil sunflower pressing and related industries, and make good use of foreign resources to effectively meet the needs of domestic sunflower seed oil.

High‐toughness Al2O3–Ti(C,N) composites reinforced by cBN particles were prepared by the new oscillating pressure sintering technique. The density, phase, and microstructure evolution of the Al2O3–Ti(C,N)‐cBN composites sintered at different temperatures were studied, and their effects on the mechanical properties were investigated. The results show that when the sintering temperature increases from 1300 to 1500°C, the heat preservation time shortens, whereas the density and interface bonding strength of the composites increase. In addition, cBN particles can play the role of crack bridging and be pulled out when the composites fracture, improving the toughness of the Al2O3–Ti(C,N)–cBN composites. However, when the sintering temperature further rises to 1600°C, a new phase of TiB2 forms, and the solid solubility of C and N in Ti(C,N) increases, leading to a decrease in density and mechanical properties. As a result, when the Al2O3–Ti(C,N)–cBN composite is sintered at 1500°C, its mechanical properties reach the maximum values of 21.5 GPa, 5.7 MPa m1/2, and 731 MPa for hardness, fracture toughness, and flexural strength, respectively. [ABSTRACT FROM AUTHOR]

This paper investigates the correlation between the quality of corporate social responsibility disclosure (CSRD) and financial performance (FP). It also investigates the moderating role of chief executive officer power (CEOP) in the relationship between the quality of CSR disclosure and firm value (FV) in Chinese listed companies. The evidential research used the up-to-date sample (3, 248) of unbalanced findings for the period of 2014–2020, from the registered Chinese firms in the Shenzhen and Shanghai Stock Exchanges as samples for the study. As a starting point technique, the STATA 15 has been used to test pooled ordinary least squares (OLS) regression on a sample of Chinese listed companies. We use 1-year lagged regression and two SLS regressions to monitor the potential endogeneity problem. The imbalanced data set was received from the China Stock Market and Accounting Research (CSMAR) web page, which is the most significant source of information for Chinese publicly listed firms. Data on CSR information items and media reporting are compiled manually. The findings of the study revealed that there are positive FP consequences for the companies engaged in the quality of CSR disclosure. We also report that higher CEO power negatively enhances the quality of CSR disclosure effect on the FP of FV. The research investigates the impact of CSR disclosure and FP by presenting evidence of the moderating role of CEO power. Therefore, it is suggested that a higher law for CSR engagement and disclosure be implemented in China, and robust measures for the implementation of CEO power, although there are financial advantages to be gained. A key relevance to the empirical quality of CSR disclosure research can be recognized as the moderating role of CEO power in the quality of CSR disclosure, FP, and FV in the context of Chinese study. The findings are robust with the use of an instrumental variable method.

Mergers and acquisitions (M&As) and innovation as essential business development strategies have attracted much interest in the capital market. A difference-in-differences model employing Chinese listed firms indicates that M&As significantly enhance corporate innovation. The potential mechanisms lie in the fact that M&As generate synergy in finance, corporate governance, and information. Complementary evidence shows that the M&A effect on innovation is heterogeneous across payment methods and goodwill. We conclude that synergies obtained from combining and restructuring are important drivers of innovation capabilities. [ABSTRACT FROM AUTHOR]