In the field of modern architecture, 3D laser scanning technology is gradually becoming an important tool for building visual modeling with its high precision and high efficiency. In this paper, the Smart East Building of Liaoning University of Science and Technology is studied. The point cloud scanning of the building is carried out with the 3D laser scanner of the model of Southern SP-500, and the point cloud processing is carried out with the software of SouthLidar Pro and Trimble RealWorks. Finally, the 3D model of the building is made. In this paper, the three-dimensional laser scanning technology is used to measure the building, which not only improves the accuracy and efficiency of modeling, but also provides strong support for the digital transformation of the construction industry. The application prospect of three-dimensional laser scanning technology in the visual modeling of buildings is broad, and it is expected to further promote the intelligence and refinement of architectural design and construction.

As global pollution increases, natural water sources are becoming contaminated, and species are facing extinction. Lushan Mountain, a tourist destination in Jiangxi, China, boasts a rich history and exceptional natural beauty. Within Lushan Mountain, there is a waterfall named Long-tan. By analyzing the water quality of Long-tan Waterfall, we can understand the extent of pollution in China’s natural water sources and the effectiveness of China’s efforts to protect its natural beauty. Compared to other natural water sources in Jiangxi, the water in Lushan contains very few metals, indicating that it is well protected from pollution by tourists, residents, and surrounding factories. Due to the low number of dissolved ions in the water, its conductivity is even lower than that of tap water in China. The high quality of the water makes it a beautiful attraction, drawing visitors from around the world.

Rural landscape is the carrier of rural ecology and culture, and also an important hormone for the development of rural tourism. Through the analysis of the process of rural landscape planning, taking Pinggang village, Fengkai County, Zhaoqing City, as a concrete case to further clarify, to provide a reference for the practice of rural revitalization exploration.

With the deepening of the development of urban underground space, the scale and complexity of foundation pit engineering are increasing. Based on geotechnical survey, the key elements of geological engineering are analyzed. By discussing the selection of survey requirements, structure parameters, excavation strategy optimization and environmental assessment, a set of systematic support design methods based on geological conditions is proposed. This method emphasizes adjusting measures according to local conditions and integrating advanced exploration technology and engineering experience, aiming to improve the safety, economy and environmental friendliness of foundation pit support, and provide reliable technical support for foundation pit engineering under complex geological conditions.

Food security is a strategic issue related to people’s livelihood, and cultivated land is the foundation of food production. Urbanization and industrialization have intensified the occupation and destruction of cultivated land, with a large amount of cultivated land being used for non-agricultural development. The cultivated land compensation mechanism is not perfect enough, resulting in the unreasonable utilization and waste of agricultural land resources. The effective implementation of the cultivated land protection system can guarantee the foundation of agricultural production, maintain the continuity and stability of agricultural production, ensure the rational utilization and sustainable operation of cultivated land resources, effectively maintain the stability and production capacity of cultivated land resources, promote the sustainable development of food production, and ensure national food security.

The paper presents a three-dimensional TSP (Traveling Salesman Problem) search model based on genetic algorithms to efficiently locate a lost submersible in the deep sea. The model takes into account the influence of underwater terrain and predicts the submersible’s position using a genetic algorithm that optimizes the search path. The search probability as a function of time is also determined to prioritize search points closest to the main ship. The model simplifies the search process by assuming constant speed travel and ignoring mutations for operational efficiency. The conclusion highlights the model’s high efficiency and adaptability, while acknowledging the need for improved accuracy in position prediction, especially under extreme conditions affecting the submersible’s trajectory.

With the development of automobile industry, higher requirements are put forward for the manufacturing process of key parts of automobile powertrain. This paper aims to explore the manufacturing process innovation of key parts of automobile powertrain, including the application of new materials, innovative manufacturing process, precision and quality control innovation, automation and intelligent manufacturing.

Flood is a natural phenomenon in which the water volume of rivers and lakes increases rapidly or the water level rises suddenly due to natural factors such as heavy rain, melting ice and snow, and storm surges. As a natural disaster with strong suddenness and wide impact, it poses a serious threat to human society. Based on historical flood event data, this paper focuses on the study of the multi-level risk warning system of flood disasters, aiming to improve the response capability and disaster reduction efficiency of flood events. Through Lasso regression and cross-validation technology, five key factors closely related to flood occurrence are screened out-”deforestation, climate change, silt deposition, agricultural practice and insufficient planning”. The role mechanism of these factors in causing floods is further analyzed, and scientific suggestions and optimization measures for early prevention of floods are proposed, in order to provide data support and theoretical basis for the formulation of disaster prevention and mitigation policies.

This paper explores climate change writing in 21st-century Chinese science fiction. It outlines the narrative development, including emergence, exploration, and development stages. It examines thematic representations, such as global climate shifts, “slow violence,” environmental justice, and intergenerational equity. It analyzes aesthetic orientations, including ecological doom, technological intervention, and human choice. The paper discusses literary value and limitations, summarizing that the writing lacks scale and narrative depth. The study aims to deepen understanding of climate change writing in Chinese science fiction, offering new perspectives for research and promoting thought and action on climate change.