World Journal of Engineering and Technology最新文献

Experimental Study on the Attenuation Law of Vibration Wave Propagation in Natural Gas Wells in Coal-Gas Cross-Mining Area 煤层气跨采区天然气井振动波传播衰减规律实验研究

World Journal of Engineering and Technology Pub Date : 2023-01-01 DOI: 10.4236/wjet.2023.114053

Junqi Lei, Wen Wang, Kun Yang, Tong Zhang, Runsheng Guo, Yihe Yu

{"title":"Experimental Study on the Attenuation Law of Vibration Wave Propagation in Natural Gas Wells in Coal-Gas Cross-Mining Area","authors":"Junqi Lei, Wen Wang, Kun Yang, Tong Zhang, Runsheng Guo, Yihe Yu","doi":"10.4236/wjet.2023.114053","DOIUrl":"https://doi.org/10.4236/wjet.2023.114053","url":null,"abstract":"Aiming at the safety distance between coal mining working face and natural gas wells in the cross-mining area of multiple mineral resources, the cross- mining area of gas and coal resources in the Ordos Basin is taken as the engineering background. An anti-collision early warning technology method based on vibration wave propagation attenuation monitoring is proposed to prevent collision accidents between road headers and natural gas wells. Through the steel pipe and steel pipe concrete knocking vibration test and underground digging vibration test, the research results show that: The exponential decay coefficients of the vibration wave in steel pipe, steel pipe concrete and coal rock respectively are 0.1, 0.1140 and 0.03, which are all in accordance with the exponential decay law, and the vibration wave firstly decays sharply and then decays slowly; the formula for the distance from the road header to the natural gas well was derived based on the vibration attenuation formula, to provide a new method for realizing the problem of precise and coordinated extraction by surface monitoring of the distance from down hole road headers to gas wells, collision prevention prediction and warning and prevention of collision of extraction equipment with gas wells.","PeriodicalId":481433,"journal":{"name":"World Journal of Engineering and Technology","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structure of Cu-Phthalocyanine Vacuum Deposited on Inclined Glass Substrates 倾斜玻璃基板上真空沉积cu -酞菁的结构

World Journal of Engineering and Technology Pub Date : 2023-01-01 DOI: 10.4236/wjet.2023.114052

Masato Ohmukai, Yasutaka Kato

引用次数: 0

The Research on the Impact Factors of the Comprehensive Evaluation of Communication Unit Camps Based on Analytic Hierarchy Process 基于层次分析法的通信部队营区综合评价影响因素研究

World Journal of Engineering and Technology Pub Date : 2023-01-01 DOI: 10.4236/wjet.2023.114048

Zhen Wu, Xuegang Wang, Lihua Fang, Qiuchen Gu

引用次数: 0

Research on the Construction of Aerospace Equipment Maintenance Support Chain Models 航空航天装备维修保障链模型构建研究

World Journal of Engineering and Technology Pub Date : 2023-01-01 DOI: 10.4236/wjet.2023.114047

Hongbin Song, Xuegang Wang, Lihua Fang, Qiuchen Gu, Wei Cheng

{"title":"Research on the Construction of Aerospace Equipment Maintenance Support Chain Models","authors":"Hongbin Song, Xuegang Wang, Lihua Fang, Qiuchen Gu, Wei Cheng","doi":"10.4236/wjet.2023.114047","DOIUrl":"https://doi.org/10.4236/wjet.2023.114047","url":null,"abstract":"The current space launch missions are intense, and the utilization of equipment is frequent, demanding increasingly higher responsiveness and capability in maintenance and support. The aerospace equipment maintenance and support chain relies on aerospace equipment maintenance and support facilities, deploying various maintenance and support resources rationally according to specific requirements and principles, ultimately forming a unidirectional functional chain or network from the supply side to the demand side. This system helps address the “bottleneck” issue in the generation of aerospace equipment support capability and significantly improves the level of aerospace equipment maintenance and support. The model construction is a prerequisite for analyzing the formation and operation mechanism of the chain, and identifying factors affecting the efficiency and effectiveness of maintenance and support. With consideration of the particularity of aerospace equipment maintenance and support, the paper extensively investigates the construction of the aerospace equipment maintenance and support chain model by drawing on research achievements in modern supply chain and logistics theories, as well as model construction methods. It develops a structural diagram-based chain model, with symbols as key elements, and establishes an evaluation indicator system, providing insights into understanding and grasping the composition of the aerospace equipment maintenance and support chain effectively. Furthermore, it offers a reference for solving other equipment support chains’ construction and optimization problems.","PeriodicalId":481433,"journal":{"name":"World Journal of Engineering and Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136259784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Data Analysis of a New Type of Antifreezing Cup-Type Wind Velocity Sensor 新型防冻杯式风速传感器的设计与数据分析

World Journal of Engineering and Technology Pub Date : 2023-01-01 DOI: 10.4236/wjet.2023.114045

Jiajia Zhang, Jianguang Han, Jianan Yin, Zheng Liu, Ting Ma

引用次数: 0

Design Optimization for Generating a High Static Magnetic Field 产生高静态磁场的优化设计

World Journal of Engineering and Technology Pub Date : 2023-01-01 DOI: 10.4236/wjet.2023.114054

Hussien A. Elharati, Ziad Omar Wareg, Mohamed Amro Waregh

{"title":"Design Optimization for Generating a High Static Magnetic Field","authors":"Hussien A. Elharati, Ziad Omar Wareg, Mohamed Amro Waregh","doi":"10.4236/wjet.2023.114054","DOIUrl":"https://doi.org/10.4236/wjet.2023.114054","url":null,"abstract":"This paper details the creation of a device capable of generating a powerful and consistent static magnetic field. This apparatus serves the purpose of quantifying the magnetostrictive strain found in materials like annealed cobalt ferrite and Terfenol-D, specifically those shaped as cylindrical rods. In our investigation, the use of static magnetic fields proves most advantageous. This choice is made to mitigate the generation of eddy currents, which would inevitably occur if the magnetic field intensity were varied. The fundamental idea behind this design involves employing a C-shaped iron core constructed from low-carbon mild steel. On this core, three coils are mounted, each capable of producing one-third of the required 9000 Oersted (Oe) magnetic field strength. The test specimen is situated within the “jaws” of the C-shaped core, thus completing the magnetic circuit. To manage the heat generated by each coil, a cooling system consisting of copper tubes is employed. These tubes facilitate the flow of air to dissipate the heat. To model and predict the magnetic field strength produced by the coils, finite element analysis (FEMM) software is utilized, and the results align closely with the anticipated outcomes. This design effectively generates a robust and unchanging magnetic field measuring a stable 9000 Oe in total. Consequently, this equipment finds utility in characterizing the magnetic properties of specific materials.","PeriodicalId":481433,"journal":{"name":"World Journal of Engineering and Technology","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135710670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Influence of Radial Pressurization on Anchoring Performance of Bolts 径向加压对锚杆锚固性能影响的研究

World Journal of Engineering and Technology Pub Date : 2023-01-01 DOI: 10.4236/wjet.2023.114049

Shuo Wang

引用次数: 0

Techniques and Technological Aspects of Palm Oil (<i>Elaeis guineensis</i>) Processing in Cameroon 棕榈油的技术和技术方面(<i>Elaeis guineensis</i>)喀麦隆加工

World Journal of Engineering and Technology Pub Date : 2023-01-01 DOI: 10.4236/wjet.2023.114051

Godlove Nfor Njeshu, Ngwa Martin Ngwabie, Divine Nde Bup, Cornelius Tsamo

引用次数: 0

A Generic Intelligent Agent Design Approach Based on Artificial Neural Networks 一种基于人工神经网络的通用智能代理设计方法

World Journal of Engineering and Technology Pub Date : 2023-01-01 DOI: 10.4236/wjet.2023.114046

Thierry Noulamo, Alain Djimeli-Tsajio, Roger Kameugne, Jean-Pierre Lienou

{"title":"A Generic Intelligent Agent Design Approach Based on Artificial Neural Networks","authors":"Thierry Noulamo, Alain Djimeli-Tsajio, Roger Kameugne, Jean-Pierre Lienou","doi":"10.4236/wjet.2023.114046","DOIUrl":"https://doi.org/10.4236/wjet.2023.114046","url":null,"abstract":"Artificial intelligence in general and software agents in particular are recognized as computer science disciplines that aim to model or simulate so-called intelligent human behaviors such as perception, decision-making, understanding, learning, etc. This work presents an approach to designing a generic Intelligent Agent that can be used in a multi-agent system to solve a complex problem. The generic agent that is proposed can be instantiated as a concrete agent, which is enabled with learning and autonomy capabilities by using Artificial Neural Networks. To highlight the generic aspect, the proposition is instantiated to be used in agriculture, health and education. The instantiated software agent applied in agriculture can process images in real time and detect defect on plants’ leaf. In the health field, the agent process image to diagnose breast cancer. When applied in Education, the agent can load an image of a student’s script and grade it. The performance of the designed agent system has the same accuracy as that of the respective neural networks used to instantiate them. In the educational field, the software agent has an accuracy of 98.9% and in the health field, it has an accuracy of 99.56% while in the agricultural field, it has an accuracy of 97.2%.","PeriodicalId":481433,"journal":{"name":"World Journal of Engineering and Technology","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135800866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Assessment of Modeling Collimator Designs for Gamma-Ray Transmission of Uranium Oxide Spectrometry Using HPGe Detectors 使用HPGe探测器的氧化铀光谱法伽马射线透射建模准直器设计评估

World Journal of Engineering and Technology Pub Date : 2023-01-01 DOI: 10.4236/wjet.2023.114044

Rasha Ali El-Tayebany, Hekmat Elbegawy

{"title":"Assessment of Modeling Collimator Designs for Gamma-Ray Transmission of Uranium Oxide Spectrometry Using HPGe Detectors","authors":"Rasha Ali El-Tayebany, Hekmat Elbegawy","doi":"10.4236/wjet.2023.114044","DOIUrl":"https://doi.org/10.4236/wjet.2023.114044","url":null,"abstract":"Many scientific domains use gamma-ray spectrometry, but non-destructive gamma scanning and gamma emission tomography of radioactive fuel in particular. In the experimental setting, a collimator is frequently employed to focus on a particular location of interest in the fuel. Predictive models for the transmitted gamma-ray intensity through the collimator are required for both the optimization of instrument design and the planning of measurement campaigns. Gamma-ray transport accuracy is frequently predicted using Monte Carlo radiation transport methods, but using these tools in low-efficiency experimental setups is challenging due to the lengthy computation times needed. This study focused on the full-energy peak intensity that was transmitted through several collimator designs, including rectangle and cylinder. The rate of photons arriving at a detector on the other side of the collimator was calculated for anisotropic source of SNM (U3O8). Some geometrical assumptions that depended on the source-to-collimator distance and collimator dimensions (length, radius or length, height, and width) were applied to achieve precise findings.","PeriodicalId":481433,"journal":{"name":"World Journal of Engineering and Technology","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135650168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0