Abstract.In order to ensure the stability of ROV, a corresponding control method must be adopted to realize the stable control of ROV. According to the joint action of multiple parameters, a bow motion control method based on multiple parameters is proposed, and the method is simulated and studied; the transfer function is derived. Then, using the theoretical study of PID control and fuzzy PID control, a fuzzy PID controller was constructed in the MATLAB Simulink library and simulated and tested, and the control effects of the PID controller and the fuzzy PID controller were compared, and it can be … Read more →

Abstract.The excessive accumulation and leakage of heavy metal elements have severely polluted surrounding ecosystems, posing threats to biodiversity and human health, making the remediation of heavy metal-polluted mines a global focus. Remediation of such mines is a complex and urgent task, and significant results can be achieved through strategies such as comprehensive management, resource recycling, social participation, and long-term monitoring. Continuous innovation in technology and management, strengthened international cooperation, and the promotion of a virtuous cycle of environmental … Read more →

Abstract.The short column effect is a major contributor to structural failure during seismic events. However, while most investigations concentrate on its influence on external walls, it also causes damage to interior walls. This underscores the significance of exploring interior wall damage due to this effect. This study involves four variations of RC frames with infill walls, analyzed using the Pushover method within the SAP 2000 software. The Pushover analysis vividly portrays the behavior and performance of interior wall systems. A comprehensive comparison of metrics like base shear, column shear … Read more →

Abstract.Peristaltic flow theory is often based on the long wavelength assumption, which can be approximated by small wave number cases. This paper presents a unique approach to analyze the peristaltic flow for both short and long wavelength domains. The governing equation considering wave number is solved by combining eigen function expansion and generalized inversion methods, which is first proposed to solve peristaltic flow problems. In particular, the modified Navier-Stokes equations, considers the effects of the Trouton’s elongational viscosity. The result indicates that this computational method … Read more →

Abstract.It is of great significance for China to understand how to use financial policies to promote the achievement of the dual carbon goal. This project will be carried out under the background of double carbon. The goal is to explore the impact of China's green credit policy on the transformation and upgrading of heavily polluting enterprises. This study will use the data of China's listed heavily polluting enterprises from 2008 to 2015, and use the "Green Credit Guidelines" issued in 2012 as the target policy, and use the difference-in-differences (DID) method to evaluate the policy effect. Based … Read more →

Abstract.The world's major military powers have taken the battlefield reconnaissance as an important way of obtaining information and resources, and have put forward higher requirements for the use of battlefield reconnaissance intelligence equipment. Battlefield reconnaissance intelligence equipment has been continuously upgraded and is now mostly intelligent and can further evolve in the direction of intelligence. According to the development status quo of battlefield reconnaissance equipment in the world, this paper boldly predicts the latest development and application trends for the development of … Read more →