Global Journal of Engineering and Technology Advances最新文献_第9页

Design and Development of AKEA: A 360-degree rotating vehicle AKEA的设计与开发:360度旋转车辆

Global Journal of Engineering and Technology Advances Pub Date : 2023-08-30 DOI: 10.30574/gjeta.2023.16.2.0142

Adedeji. A. Kasali, Yussuoff A. Abiodun, Emola. W. Shola, Olajide. S. Anthony, Ogundele A Gbolahan

{"title":"Design and Development of AKEA: A 360-degree rotating vehicle","authors":"Adedeji. A. Kasali, Yussuoff A. Abiodun, Emola. W. Shola, Olajide. S. Anthony, Ogundele A Gbolahan","doi":"10.30574/gjeta.2023.16.2.0142","DOIUrl":"https://doi.org/10.30574/gjeta.2023.16.2.0142","url":null,"abstract":"The design of a 360-degree rotating vehicle has been proposed as a solution to the problems encountered in traditional wheel vehicles. This paper highlights the benefits of such a design, the proposed models for implementing the design, and the design of a 360-degree rotating vehicle known as AKEA. Traditional wheel vehicles are faced with numerous problems such as parking and u-turn. The 360-degree rotating vehicle design eliminates these problems as it can take turns without moving the vehicle, and no extra space is required to turn the vehicle. The proposed models for implementing the design of the 360-degree rotating vehicle include lifting plates, chain sprockets, chain or belt drives, and quad-steering mechanisms. These models have several shortcomings, including complexity in design, unrealistic features and increased turning radius. The AKEA design, however, incorporates sustainable and recycled materials, and the result of the design process was a vehicle that performed various features. These features include side-ways movement, 360-degree rotation, and mobile phone operation. AKEA is connected to the mobile phone via Bluetooth, having a range of 100 meters. However, to improve the design further, sensors for self-driving and WiFi connectivity for a broader range of connectivity were proposed. In conclusion, the design of a 360-degree rotating vehicle is necessary to reduce and eliminate problems encountered in traditional wheel vehicles. Although several models have been proposed, the AKEA design performs various features and can be implemented in modern cars and trucks. Improving the design by incorporating sensors and WiFi connectivity will improve the responsiveness of the mobile application and ensure wider range connectivity.","PeriodicalId":402125,"journal":{"name":"Global Journal of Engineering and Technology Advances","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126784799","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

The use of ICT in the education of students with dyslexia 信息通信技术在阅读障碍学生教育中的应用

Global Journal of Engineering and Technology Advances Pub Date : 2023-08-30 DOI: 10.30574/gjeta.2023.16.2.0131

Taxiarchis Vouglanis

引用次数: 2

Solvibility of the Kahn-Hillard model in Quasi-Sobolev space 准sobolev空间中Kahn-Hillard模型的可解性

Global Journal of Engineering and Technology Advances Pub Date : 2023-08-30 DOI: 10.30574/gjeta.2023.16.2.0169

Jawad Kadhim Tahir

引用次数: 0

Digital technologies in lifelong learning 终身学习中的数字技术

Global Journal of Engineering and Technology Advances Pub Date : 2023-08-30 DOI: 10.30574/gjeta.2023.16.2.0132

Vasiliki Tsolaki, Agathi Stathopoulou

引用次数: 0

Application of 2K full factorial on the production of charcoal briquettes made from coconut shell 2K全因子在椰壳炭块生产中的应用

Global Journal of Engineering and Technology Advances Pub Date : 2023-08-30 DOI: 10.30574/gjeta.2023.16.2.0153

Sani Inuwa, Lamido, Muktar Habib, Sarah Chinyere Oloboh

{"title":"Application of 2K full factorial on the production of charcoal briquettes made from coconut shell","authors":"Sani Inuwa, Lamido, Muktar Habib, Sarah Chinyere Oloboh","doi":"10.30574/gjeta.2023.16.2.0153","DOIUrl":"https://doi.org/10.30574/gjeta.2023.16.2.0153","url":null,"abstract":"The production of charcoal briquettes using 2k full factorial Design in Design Expert V12 software was utilized in this research work. The factors considered are: Quantity of CaCO3, Quantity of NaNO3 and Quantity of Starch binder. Analysis of variance (ANOVA) indicates that the linear effect of all the factors: A (Quantity of Catalyst), B (Quantity of CaCO3) and C (Quantity of Starch) are significant with P-values of 0.0050, 0.0062, and 0.0003 respectively. Other significant effects are the interactive effect of BC (Quantity of NaNO3 and Quantity of Starch) and that of the combine effect of all the three (3) factors (ABC) with P-values of 0.0125 and 0.0031 respectively. The Model F-value of 755.59 implies the significant of the model. The coefficient of determinant (R2) for the model of 0.9995 and Adjusted R2 of 0.9981 shows that the model equation has a very good fit to the experimental data. Briquettes produced from Run 7 and 4 have the least volatile matter of 1.54% and 1.67% respectively, the lowest ash content of 2.14% and 2.19 % respectively and the highest percentage fix carbon of 97.67% and 96.56% respectively.","PeriodicalId":402125,"journal":{"name":"Global Journal of Engineering and Technology Advances","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124336073","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 of selected wood species for longer span trusses 大跨度桁架选用木材的设计

Global Journal of Engineering and Technology Advances Pub Date : 2023-08-30 DOI: 10.30574/gjeta.2023.16.2.0143

Asimiyu Amobi Oyediran, C. Ikumapayi, B. Olufemi

{"title":"Design of selected wood species for longer span trusses","authors":"Asimiyu Amobi Oyediran, C. Ikumapayi, B. Olufemi","doi":"10.30574/gjeta.2023.16.2.0143","DOIUrl":"https://doi.org/10.30574/gjeta.2023.16.2.0143","url":null,"abstract":"The trends of researches in the built industry are exploration of the available alternatives; either as raw materials or finished products construction materials, to most construction materials that have been playing dominant roles in construction industry for decades. Aside that the cost of using them in construction keep rising, the associated health hazards in their production and usage are huge and costly to rectify. The usage of locally available construction materials is being hindered by the lack of useful engineering data of the materials for structural design. Wood is an alternative local, green and sustainable material to steel in roof truss design and construction. Its usage has been limited to short span roof trusses based on inherited knowledge especially in Africa. There is need to know the actual capacity and potential of various wood species in relation to roof design. This work studied the properties of; Gmelina arborea, Tectona grandis (Teak), Terminalia superba (Afara), Ayin (Anogeissus leiocarpus), and Acacia (Robinia pseudoacacia). The values obtained from the laboratory experiments conducted on them were used to design rafter and tie beam of king post roof truss spanned to 12 m and 8 m using timber section 0f 50 mm x 150 mm of all the species. Then section sizes of 150 mm x 250 mm and 250 mm x 350 mm of Acacia were then designed separately. It was found that the five species were not suitable for long span roofing using the chosen three section sizes because the tie beams failed in deflection, which is most critical to deliver a safe, durable and serviceable roof. However, all the species, except Afara, are satisfactory for rafter whose span is not more than 7.5 m. It was also discovered that the higher the section size of timber used in the design the lower the deflection.","PeriodicalId":402125,"journal":{"name":"Global Journal of Engineering and Technology Advances","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132023572","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

Performance analysis and control of an agricultural tractor suspension system 农用拖拉机悬挂系统性能分析与控制

Global Journal of Engineering and Technology Advances Pub Date : 2023-08-30 DOI: 10.30574/gjeta.2023.16.2.0158

A. Ahmed, M. Mohammed, Abdullah Ali, Alhade Mohamed algitta

引用次数: 0

Structural reliability assessment of offshore tubular t-joints under static axial brace loading 海上管状t形接头在静轴撑载荷下的结构可靠性评估

Global Journal of Engineering and Technology Advances Pub Date : 2023-08-30 DOI: 10.30574/gjeta.2023.16.2.0144

O. K. Olayinka, O. K. Olayinka, M. Obhuo

{"title":"Structural reliability assessment of offshore tubular t-joints under static axial brace loading","authors":"O. K. Olayinka, O. K. Olayinka, M. Obhuo","doi":"10.30574/gjeta.2023.16.2.0144","DOIUrl":"https://doi.org/10.30574/gjeta.2023.16.2.0144","url":null,"abstract":"This paper presents a comprehensive study on the structural reliability assessment of tubular T-joints under axial brace loading in offshore structures. The investigation combines numerical modeling and experimental analysis to understand the behavior of these joints and assess their structural integrity. Based on Hot sport stresses in the joints. The numerical investigation reveals that the brace region experiences higher stress concentrations compared to the cord region, with maximum stress concentrations observed at the 90-degree position. Experimental results confirm these trends, although slight discrepancies exist between numerical and experimental stress concentration factors (SCFs), with percentage difference of about 12 percent on the average for both Chord and Brace. The likely cause of this discrepancies is due to Fabrication imperfections and limitation in terms of Mesh size on the part of the software. The findings contribute to the knowledge of tubular T-joint behavior and have implications for designing mitigation measures. Further research is needed to analyze additional parameters and refine design guidelines to enhance the performance of tubular T-joints in offshore structures.","PeriodicalId":402125,"journal":{"name":"Global Journal of Engineering and Technology Advances","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116157089","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

Microstructure evolution and corrosion behaviors of cold-rolled 304 stainless sheets of steel in 3.5% NaCl solution 冷轧304不锈钢薄板在3.5% NaCl溶液中的组织演变及腐蚀行为

Global Journal of Engineering and Technology Advances Pub Date : 2023-08-30 DOI: 10.30574/gjeta.2023.16.2.0136

M. Dumont, Isabella Teixeira Rezende, Erlan Samuel Santos, Wilian da, Silva Labiapari, E. Carballo, S. Corrêa

{"title":"Microstructure evolution and corrosion behaviors of cold-rolled 304 stainless sheets of steel in 3.5% NaCl solution","authors":"M. Dumont, Isabella Teixeira Rezende, Erlan Samuel Santos, Wilian da, Silva Labiapari, E. Carballo, S. Corrêa","doi":"10.30574/gjeta.2023.16.2.0136","DOIUrl":"https://doi.org/10.30574/gjeta.2023.16.2.0136","url":null,"abstract":"Austenitic stainless steel (ASS) is widely used in engineering applications due to its good corrosion resistance and mechanical properties. Several studies have indicated that the deformation-induced transformation of martensite in ASS significantly affects its corrosion resistance. However, corrosion resistance behavior in chloride-rich environments is more complex, and different cold-working methods have distinct impacts on localized corrosion. This study investigated the structural and corrosion resistance changes induced by cold rolling in AISI 304 samples. The used samples were initially subjected to a cold-rolling process with a thickness reduction of up to 50%. The results demonstrate an increase in the deformation-induced martensitic transformation and micro-hardness as the level of cold deformation increases. However, higher levels of deformation lead to the fragmentation of the formed a’‑martensite lath structure into smaller laths, ultimately resulting in a predominantly refined and diffuse dislocation-cell-type structure. Potentiodynamic tests were conducted to analyze conventional electrochemical parameters, revealing a reduction in corrosion resistance with increasing cold deformation. This suggests that the formation, amount, and microstructure of a’‑martensite, under imposed strain conditions, induce changes in the studied electrochemical parameters. Additionally, the more deformed samples exhibited a higher current density during passive layer formation, and exhibited more intense metastable pits, suggesting decreased corrosion resistance with higher degrees of deformation.","PeriodicalId":402125,"journal":{"name":"Global Journal of Engineering and Technology Advances","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124573229","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

Early diagnosing diabetes using data mining algorithms 利用数据挖掘算法进行糖尿病早期诊断

Global Journal of Engineering and Technology Advances Pub Date : 2023-08-30 DOI: 10.30574/gjeta.2023.16.2.0141

Rasha Rokan

引用次数: 0