Journal of Engineering Research and Reports最新文献

{"title":"A Comparative Study on Suitability of AHP and TOPSIS for Identifying optimal Conceptual Design of Bearing Puller","authors":"Philip Vincent","doi":"10.9734/jerr/2023/v25i121053","DOIUrl":"https://doi.org/10.9734/jerr/2023/v25i121053","url":null,"abstract":"Design process of the bearing puller involves various stages that can be grouped into conceptualization of ideas based on design criteria and functional requirements. This is followed by concept generation and selection for optimal design. Concept selection is an important activity in engineering design process, because it involves decision making considering various factors. In this project, computer aided design of four bearing puller was developed after a thorough consideration of the design criteria and factors of an optimal design. Analytic Hierarchy Process (AHP) and Technique for order of preference by similarity to ideal solution (TOPSIS) were used in order to ascertain their suitability for selecting optimal design in engineering. The result obtained from the comparison process proves that both processes are suitable because there are no ties in the final selection of the optimal design concept. The AHP and TOPSIS shows the same design concept irrespective of the processes. This is an indication that both concept selection process considered the weight factor of the level of importance of functional requirement or design criteria. In view of this, it has been proven that whenever the weigh factor remains the same, both processes will give the same result, at least for the considered case. This result may vary when they are both applied for design process of other products.","PeriodicalId":340494,"journal":{"name":"Journal of Engineering Research and Reports","volume":"58 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139151942","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}

{"title":"Hydrate Control in Subsea Natural Gas Production","authors":"Ismaila Ibrahim","doi":"10.9734/jerr/2023/v25i121048","DOIUrl":"https://doi.org/10.9734/jerr/2023/v25i121048","url":null,"abstract":"One of the most significant technological challenges that this industry faces today is securing the production flow in deep water exploration. Intense conditions of high pressure and low temperatures will favor the formation of the hydrates which could restrict or block the pathway to the extent that there can be a humungous financial loss. This research was devoted to hydrate control in subsea natural gas production using results from water concentration estimation for reservoir, wellhead and onshore receiving terminal conditions. For illustration, a natural gas stream from the Niger Delta was selected where the transportation medium is a pipeline. Further implementation as part of the hydrate formation assessment input was done on the temperature and pressure profile along this pipeline. A hydrate inhibition strategy based on monoethylene glycol (MEG) is under consideration. It is revealed that in the case if a temperature falls below 20°C and pressure will increase above 100 bar, then it would be met with a flow configuration in a region where hydrates are formed. Estimation of water concentration thus suffices to give useful information as possible prevention methods to hydrate formation while the gas flow is going on in the pipeline. The actual thermodynamic conditions required for the hydrate formation can also be deduced from the temperature and pressure data.","PeriodicalId":340494,"journal":{"name":"Journal of Engineering Research and Reports","volume":"93 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139155903","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}

{"title":"Secret Key Management in Wireless Sensor Network Based on Probabilistic Technique","authors":"Aniebiet Effiong Bassey, Enyenihi Henry Johnson, Gabriel Etim Umoh","doi":"10.9734/jerr/2023/v25i121049","DOIUrl":"https://doi.org/10.9734/jerr/2023/v25i121049","url":null,"abstract":"Data confidentiality implies that data access is limited to authorized entities only, thus measured data and transmitted data by wireless sensors require optimum security and privacy. Various techniques have been employed to implement effective security mechanisms for a wireless sensor network. However, the arsenal of these potential solutions is useless, considering the constrained nature of the Wireless Sensor Network (WSN) resources in terms of memory, processing and computational capacity. While considering an effective solution for this situation, care must be taken not to trade the desired solution for other factors. This paper considers the implementation of a probabilistic approach for key management in WSN. In the implementation, all kinds of communication within the wireless sensor nodes are presented by forwarding encrypted keys for mutual authentication. A successful authentication opens a communication channel for the communicating nodes. The encrypted keys are computed by generating a polynomial which constitutes the hashed ID concatenated with the master key and Message Authentication Code (MAC) address of the node. The results presented from the simulation of this model are benchmarked with the Dynamically Generated Polynomial (DGP). The proposed model was simulated using MATLAB tools and the comparison of the results obtained shows that the proposed model outperforms the DGP model by 87%, based on the key metrics which are energy consumption, storage and communication overhead.","PeriodicalId":340494,"journal":{"name":"Journal of Engineering Research and Reports","volume":"16 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139156269","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}

{"title":"The Construction Challenges of Uhuru II Wagon Vessel by Local Engineers under Expatriate Training and Supervision in the Lake Victoria Basin Kisumu, Kenya","authors":"J. K. Makone","doi":"10.9734/jerr/2023/v25i121047","DOIUrl":"https://doi.org/10.9734/jerr/2023/v25i121047","url":null,"abstract":"The MV Uhuru II is a cargo ship designed to transport cargo within Lake Victoria. It is a powerful and reliable vessel, equipped with a range of sophisticated systems that are essential for its safe and efficient operation. MV Uhuru I and her sister ship MV Umoja were built in 1965 by Yarrow Shipbuilders in Scotstoun, Glasgow, Scotland, and entered service in 1967. At over 300 ft (91 m), they were the longest vessels on any of the East African lakes. The two vessels were owned and operated by the East African Railways and Harbors Corporation (EARH) until 1977, when EARH was divided between Kenya, Tanzania and Uganda. This research paper aims to explore the challenges encountered during the construction of the first vessel in the Lake Victoria Basin by local Engineers. The study provides insights into the various obstacles faced by researchers, engineers, and stakeholders involved in the project by identifying and analyzing these challenges. This paper seeks to contribute to future vessel construction efforts in the region. Local shipbuilding industry seeks to harness the potential of the oceans, lakes and coastal areas while ensuring their long-term health and productivity for future generations. It is estimated that the blue economy, if used properly, has the potential to inject up to 4.8 billion US dollars to Kenya's economy and create over 52,000 jobs in the next 10 years. This, combined with a sustainable approach, should make a difference in the protection of maritime ecosystems. The Lake Victoria Basin is a significant water body in East Africa, providing a vital transportation route and supporting various economic activities; ensuring the long-term viability of fish stocks by implementing effective management practices, combating illegal fishing, and promoting sustainable fishing methods, expanding and promoting responsible aquaculture practices to meet the growing demand for seafood while minimizing environmental impacts. Enhancing port infrastructure, improving maritime connectivity, and optimizing logistics to facilitate trade and economic growth within East Africa region. Constructing a vessel in this region poses unique challenges due to the geographical, environmental, and logistical factors. Hence there is a need to focus on the difficulties encountered during the First-time local Construction of MV Uhuru II wagon Vessel by local engineers under expatriate supervision in the Lake Victoria Basin Kisumu. Kenya needs to formulate a clear and detailed strategy outlining the vision, goals, and steps required to become a pioneer in shipbuilding. This strategy should consider market demand, infrastructure development, skills training, and regulatory frameworks and should invest in the necessary infrastructure to support shipbuilding activities. The MV Uhuru II is a cargo ship designed to transport cargo within Lake Victoria. It is a powerful and reliable vessel, equipped with a range of sophisticated systems that are essential for its safe","PeriodicalId":340494,"journal":{"name":"Journal of Engineering Research and Reports","volume":"36 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139162883","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}

{"title":"Analysis of Physical, Chemical and Biological Characteristics of Borehole Water in Awka, Awka South LGA, Anambra State, Nigeria","authors":"Mmuonwuba Nwanneka, Muogbo Emmanuel Sochima, Onuegbu Akachukwu Samuel, Maduba Kizito","doi":"10.9734/jerr/2023/v25i121046","DOIUrl":"https://doi.org/10.9734/jerr/2023/v25i121046","url":null,"abstract":"This study aims determine the physical, chemical and biological characteristics of borehole water in Awka. The Study Activities Include: Collection of borehole water samples, Identification of  physical, chemical and biochemical characteristics present in the borehole water samples, analyzing the characteristics, comparing the characteristics of the water samples to the World Health Organizations (WHO) standards, Federal Environmental Protection Agency (FEPA) and the Nigerian Industrial Standard (NIS), Identification of health effects of imbalance in the characteristic and development recommendation for improving the quality of borehole water. The study was carried out in Microbiology laboratory, Chukwuemeka Odumegwu Ojukwu University Uli, Anambra State, Nigeria (5.7699° N, 6.8361° E). It took six months to complete the study. The physical, chemical and biological characteristics were carefully analyzed with the right methodology which includes HANNA INSTRUCTIONS FOR pH, Electrical Conductivity and temperature, GALVERMETRIC METHOD for Total Dissolved Oxygen, ARGENTOMETRIC METHOD for chloride, molybdenum blue phosphorous method for phosphate, PHENATE SPECTROPHOTOMETRIC METHOD for ammonia, WINKLER'S TITRIMETRIC METHOD for Dissolved Oxygen, TITRIMETRIC METHOD for total acidity, alkalinity and hardness, ATOMIC ABSORPTION SPECTROMETRY for heavy metals and MEMBRANE FILTERATION TECHNIQUE for total coliform and total E. Coli counts. This study presents results for these characteristics which ranges from: 28.3°C - 32°C for temperature which are all below WHO standards, 4.5 - 7.6 for pH, 0.02ms/cm - 1.355ms/cm for Electrical Conductivity, 19.5mg/L - 1020.75 mg/L for Total Dissolved Solids, 4.5mg/L - 8.6mg/L for Dissolved Oxygen, 64mg/L - 198mg/L for Chemical Oxygen Demand, 20mg/L - 138.8mg/L for Total Hardness, 25.2mg/L - 340.2mg/L for Chloride, 5.02ppm - 17.6ppm for phosphate, 0.27mg/L - 6.99mg/L, 2fcu/100ml - 130fcu/100ml for Total coliform count, 1fcu/100ml - 33fcu/100ml, 5.2mg/L - 17mg/L for total acidity, 10mg/L - 255mg/L for total acidity. Conclusion: Results of these characteristics were compared with World Health standards of drinking water, Nigeria Industrial Standards and Federal Environmental Protection Agency standards. The average values the parameters were as well compared to these standards and recommendations were developed for the maintenance and improvement of borehole water quality.","PeriodicalId":340494,"journal":{"name":"Journal of Engineering Research and Reports","volume":"25 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139162601","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}

{"title":"Design and Production of an EPC Core Network Sizing Tool “The Case of Orange-Guinea","authors":"Mamadou Sadigou Diallo, Janvier Fotsing, Kadiatou Aissatou Barry, Emmanuel Tonye, Mamadou Sanoussy Camara, Amadou-oury Bah","doi":"10.9734/jerr/2023/v25i111033","DOIUrl":"https://doi.org/10.9734/jerr/2023/v25i111033","url":null,"abstract":"With the arrival of 3G and 4G technologies, telecommunications networks have undergone a major expansion. These networks have enabled the integration of new services and adequate bandwidth, enabling operators to meet growing user demand. This rapid evolution has led operators to adapt their methods to new technologies, which increase network complexity. This complexity becomes even greater when these networks combine several different access technologies into a heterogeneous network, as in the case of 4G networks. In such cases, sizing involves new challenges such as: the considerable increase in service demands, compatibility with current networks, managing users' intercellular mobility and offering better quality of service. \u0000The solution proposed to meet these new requirements is the dimensioning of the EPC core network. \u0000The main aim of this project is to design and produce a computerized tool for sizing the EPC. The objectives of our work are in threefold : - to provide an architecture for interconnecting the EPC core network to the existing core network ; - to provide the methodology and process for sizing the core network of an EPS network; - design and implement an EPC core network dimensioning tool. In our work, traffic models are used to calculate the traffic generated by each technology to be connected to the core network. The resulting application, developed as part of our work, calculates the traffic and estimates the capacity of EPC network's core MME.","PeriodicalId":340494,"journal":{"name":"Journal of Engineering Research and Reports","volume":"6 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138589588","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}

{"title":"Moisture Transfer of Paper for Food Packaging Applications: A Laboratory Study","authors":"Klaus Dölle","doi":"10.9734/jerr/2023/v25i111034","DOIUrl":"https://doi.org/10.9734/jerr/2023/v25i111034","url":null,"abstract":"Since paper has been invented in Chana in 105 BC by Cai Lun it has transformed human live. Sustainable developments favor paper as packaging media to replace plastic packaging materials. \u0000Laboratory tests were performed on commercially available packaging papers for the assessment of mechanical properties and vapor transmission rates that might affect the packaging of perishable goods to further develop paper-based packaging materials. \u0000Research results of the mechanical paper properties values cannot be directly related and compared between the different packaging papers analyzed due to their different basis weight, composition and intended use. \u0000Research results revealed that the application of a coating material can affect paper properties negatively but decrease the vapor transmission rate measured at 23°C and 50% relative humidity below 1.06 g for wax coating and 0.3 g for polyvinyl coatings. Parchment type paper products without coating can achieve a water vapor transmission rate of 1.35 g per 240 hours.  an important factor for packaging perishable goods. \u0000Therefore, packaging paper are specifically designed for their intended use and application including the application of a coating to the paper material to keep perishable goods longer fresh.","PeriodicalId":340494,"journal":{"name":"Journal of Engineering Research and Reports","volume":"91 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138586640","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}

{"title":"Investigation of Chloride Diffusion into Concrete with Joint","authors":"Daniel Mishael, Yongdong Yan","doi":"10.9734/jerr/2023/v25i111032","DOIUrl":"https://doi.org/10.9734/jerr/2023/v25i111032","url":null,"abstract":"The passive layer shielding the steel reinforcement from corrosion can be attacked by the chloride ions that permeate through the chloride ions that permeate through the pores in the concrete when it is in solution. This paper aims to explore the investigation of chloride diffusion into concrete with joint. Three exposure conditions were taken into consideration in chloride ion diffusion experiments in order to examine the impact of exposure conditions on the chloride ion diffusion property: long-term immersion in a static sodium chloride solution, long-term immersion in a circulating sodium chloride solution, and dry–wet cycles in a circulating sodium chloride solution. According to experimental findings, the age of erosion increased the chloride ion content at a particular depth. Furthermore, concrete subjected to dry-wet cycles of the circulating sodium chloride solution had slightly higher chloride ion content than concrete immersed in the solution for an extended period of time. Fick's second law served as the foundation for the empirical equations that were developed by fitting experimental data to determine the chloride content and diffusion coefficient at the concrete's surface, as well as the correlation coefficient values for various exposure scenarios. The calculation formula's greater applicability was confirmed by comparison with the experiment results. The chloride ion content could be predicted and examined using this method for various exposure scenarios.","PeriodicalId":340494,"journal":{"name":"Journal of Engineering Research and Reports","volume":"25 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138600952","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}

{"title":"Optimal Tuning PID Controller Gains from Ziegler-Nichols Approach for an Electrohydraulic Servo System","authors":"H. A. Mintsa, G. E. Eny, Nzamba Senouveau, Rolland-Michel Assoumou Nzue","doi":"10.9734/jerr/2023/v25i111031","DOIUrl":"https://doi.org/10.9734/jerr/2023/v25i111031","url":null,"abstract":"The Proportional-Integral-Derivative (PID) controller is widely used to control industrial systems due to its ease of implementation, flexibility and well-known theory. The Ziegler-Nichols  method is the primary method of adjusting this gains controller. Unfortunately, this method generates limited performances, especially on nonlinear systems. This paper shows the optimization of the gains of the PID controller from the values of the gains obtained by the ZN method. To do this, the Matlab Response Optimization tool is used to control the angular position of an electrohydraulic servo system. The initial conditions of this optimization process are the gain values adjusted by the ZN method. The numerical results obtained after a few iterations show a reduction of approximately  in the tracking error for a sinusoidal input. Unfortunately, the performance improvement is not achieved for the step signal input because only the sine wave was used as the signal reference requirement for the optimization procedure.","PeriodicalId":340494,"journal":{"name":"Journal of Engineering Research and Reports","volume":"82 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138606238","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}

{"title":"The Need to Use Translation Software in the Classroom: Perception of Chinese International Engineering College Students in Language Learning","authors":"Yichen Yang, Hao Sun, Yuncheng Wan, Mingyang Ma, Taiji Cao, Yizhe Huang, Edison Estigoy","doi":"10.9734/jerr/2023/v25i111030","DOIUrl":"https://doi.org/10.9734/jerr/2023/v25i111030","url":null,"abstract":"This study aims to analyze students' perception and usage of translation software for language learning. A survey questionnaire was administered to International Engineering College students to gather data on their attitudes, reasons, and experiences related to using translation software. The findings reveal that a significant number of students agree to strongly agree with the use of translation software in various language learning contexts, such as translating simple sentences, long paragraphs, unfamiliar words, and during English classes. The majority of students perceive translation software as a valuable tool for improving language skills and facilitating communication with foreign teachers. However, some students also express dissenting opinions, suggesting that translation software may not be the optimal method for learning and improving English proficiency. The discussion highlights the benefits and limitations of translation software, as well as the need for a balanced approach to its usage. While translation software can be a helpful resource in specific language learning tasks, it should not replace authentic language input and independent learning. The findings emphasize the importance of integrating translation software into language learning curricula and providing guidance to students on effective and critical use. This study contributes to the understanding of students' perceptions of translation software and provides insights for educators and learners on maximizing its potential for language learning.","PeriodicalId":340494,"journal":{"name":"Journal of Engineering Research and Reports","volume":"86 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138606136","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}