Scientific Journal of Technology

Research on the Application of Titanium Dioxide Nanotubes in Insulating Resins

Mingwen Gu, Haifeng Zhang, Xiangmu Hu, Yuanhao Jia, Sizhe Qi, Xiang Xie — Tue, 21 Nov 2023 00:00:00 -0500

The commonly used insulation paint for electric vehicle motors currently has poor flame retardancy, toughness, thermal stability, and wear resistance due to the use of polymer materials. In order to further improve the performance of insulation paint, it is necessary to doping inorganic materials. However, in order to achieve high performance, high doping is generally required, and high doping faces problems such as poor compatibility between doped particles and insulation paint. In order to further improve the flame retardancy, toughness, thermal stability, and wear resistance of insulation paint, researchers generally use the method of doping inorganic particle materials. Research has found that nano inorganic materials (such as nano titanium dioxide) can improve the flame retardancy of materials while also improving their thermal and mechanical properties. However, in order to achieve high performance, insulating paint generally requires high doping, and high doping will face problems such as poor compatibility between doped particles and insulating paint. On the one hand, due to the large size and uneven dispersion of doped particles, it is difficult to achieve a good composite effect; On the other hand, the incompatibility between thermal conductive materials and organic surface interfaces further limits the effectiveness of the material. Therefore, introducing titanium dioxide nanotube materials with smaller dimensions, better dispersibility, and surface hydrophobicity treatment into the insulation paint can improve the compounding effect and further enhance the resistance to ATF oil and flame retardancy of the insulation paint.

Effect of Chunpi Decoction on Ulcerative Colitis Induced by Dextran Sulfate Sodium in Mice

Tue, 21 Nov 2023 00:00:00 -0500

Ulcerative colitis is a chronic disease with unclear pathogenesis and difficult to cure. Its drug treatment is highly dependent and has obvious side effects. In this study, dextran sulfate sodium (DSS) was used to establish a mouse model of ulcerative colitis, and Chunpi decoction (10 mL/d) were used for intervention. The body weight, disease activity index (DAI) and colon length of mice were detected, and the liver and kidney function indexes and oxidative stress levels of mice were detected by kits. Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of inflammatory factors, and the colon tissue sections were observed. Gas chromatography-mass spectrometry (GC-MS) was used to analyze the content of short-chain fatty acids (SCFAs) in the feces of mice. Among the findings: Compared with the DSS group, the body weight and colon length of the mice in the Chunpi decoction intervention group increased, DAI decreased, liver and kidney function improved, the expression of pro-inflammatory factors decreased significantly (P < 0.01), and the expression of anti-inflammatory factors increased significantly (P < 0.01). The level of inflammatory markers were significantly decreased (P < 0.01), the content of SCFAs in feces was up-regulated, and the structure of colon epithelium was improved. Chunpi decoction can improve intestinal mucosal injury and liver and kidney dysfunction in mice, and has a good therapeutic effect on DSS-induced ulcerative colitis in mice.

Research on Secondary Innovation Design of Valve Products based on 3D Printing Technology and Reverse Engineering

Yihuai Huang, Shuwei Pan — Tue, 21 Nov 2023 00:00:00 -0500

This study will take simple valves as the research object, the data extraction of some parts of valves, explore the research idea of three-dimensional model reconstruction of valves based on reverse engineering technology using forward and reverse integration modeling method, and deeply analyze the application prospect of 3D printing technology and reverse engineering technology in the valve industry. For domestic and foreign valve product users to provide rapid prototyping, secondary innovation design can be used for reference ideas.

Exploring the Rural Landscape, Forest, Field, and Lake Model under the Background of Whole Area Land Remediation

Jing Zhang, Yufei Xiong — Tue, 21 Nov 2023 00:00:00 -0500

As an innovative strategy to promote rural revitalization and urban-rural coordinated development in the new era, comprehensive land consolidation requires cooperation and joint efforts from multiple departments, and the implementation of projects is interconnected in order to achieve the broad road of socialist rural revitalization with Chinese characteristics.

Exploration of the Path of High-Quality Development of Green Building Industry under the Dual-carbon Background

Mengting Lu, Yu Liu, Tianle Zhu, Qianchun Wu, Nan Chen — Tue, 21 Nov 2023 00:00:00 -0500

Under the background of the goal of "carbon peak, carbon neutral", green development has become a hot issue in focus, in which the new low-emission infrastructure field, mainly green building, has been vigorously invested in, which is an opportunity for the development of the green building industry, and it is urgent to solve the problem of the high-quality development path of the green building industry, and analyze the factors affecting the development of the green building industry based on the development goals and concepts. construction industry development obstacles, as well as the construction of evaluation indicators for the development of the green construction industry is an urgent problem to be solved. Based on the background of double-carbon target, this topic will select some representative green building enterprises in Anhui Province as the research object; take the development of green building enterprises in Anhui Province and the data obtained from the National Bureau of Statistics on the whole life cycle of green building, energy saving and energy utilization, and the growth rate of green building area as the main research data; refer to the research theories of domestic and foreign research scholars from the development of the green building industry, the industrial foundation, building products, social benefits, and the development of the green building industry as the main research data. The development evaluation index system of green building industry is constructed in accordance with the current development situation in five aspects: industrial foundation, construction products, social benefits, internationalization, and sustainable development; the fuzzy comprehensive evaluation method is used to select the indicators from the constructed development evaluation index system, and the entropy weight method is used to determine the weight of each evaluation factor, so as to study the factors that affect the high-quality development of green building industry. At the same time, the selected indicators are quantified and the future development prospects of the industry are predicted using the Arima prediction model. It aims to provide certain reference and reference for the optimization and improvement of the development policy of green building industry in Anhui Province, and to make up for the problem that the influence factors and the degree of influence are not clear in the process of the development and construction of green building industry.