FUOYE Journal of Engineering and Technology最新文献_第8页

Lifetime Enhancement of Cooperative Wireless Ad-Hoc Networks using Optimal Power Allocation and Relay Selection Scheme 基于最优功率分配和中继选择方案的协作无线Ad-Hoc网络寿命增强

FUOYE Journal of Engineering and Technology Pub Date : 2022-08-17 DOI: 10.46792/fuoyejet.v7i3.872

D. O. Akande, F. K. Ojo, S. I. Ojo, S. Olayanju, I. A. Ojerinde

{"title":"Lifetime Enhancement of Cooperative Wireless Ad-Hoc Networks using Optimal Power Allocation and Relay Selection Scheme","authors":"D. O. Akande, F. K. Ojo, S. I. Ojo, S. Olayanju, I. A. Ojerinde","doi":"10.46792/fuoyejet.v7i3.872","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.872","url":null,"abstract":"Cooperative Communication (CC) has greatly reduced the effect of multipath fading, thereby improving the quality of transmitted signals in wireless ad-hoc networks. However, existing works on CC suffers from degradation of network lifetime due to inaccurate selection of the optimal relay terminal. This results in frequent battery recharging due to high energy consumed and battery depletion. Hence, in this paper, lifetime enhancement of cooperative wireless ad-hoc networks is carried out using allocated optimal power and relay selection scheme to ensure an optimal selection of the best relay by balancing and conserving the energy consumption of the nodes. Transmit power optimization problems were formulated for Amplify-and-Forward (AF) and Decode-and-Forward (DF) relaying strategies to obtain the optimal power allocations required to transmit the information. The proposed scheme named Energy-Aware Relay Selection (EARS) was simulated in MATLAB software environment and average network lifetime performance evaluation was performed. The result obtained shows that the proposed EARS improves the network performance by 10.06% and 3.56% for AF and DF relaying strategies, respectively over the existing power-aware relay selection schemes.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131413399","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

Small-Scale Energy Generation for Remote Rural Areas using Solar-Powered Compressed Air Storage System 利用太阳能压缩空气储存系统在偏远农村地区进行小规模发电

FUOYE Journal of Engineering and Technology Pub Date : 2022-08-17 DOI: 10.46792/fuoyejet.v7i3.863

G. Uzedhe, B. Akinloye

{"title":"Small-Scale Energy Generation for Remote Rural Areas using Solar-Powered Compressed Air Storage System","authors":"G. Uzedhe, B. Akinloye","doi":"10.46792/fuoyejet.v7i3.863","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.863","url":null,"abstract":"Energy reach in the rural areas is still of major concern today especially in developing nations. Small-scale energy generation with stored compressed air is the focus of this work towards solving the energy deficit in remote rural environments through renewable sources. The method involves an experimental setup that harnessed energy from the sun through solar PV for isothermal compression and expansion of an air storage system to gain the advantages of low cost, longevity, and environmental friendliness of air storage in small scale electrical power generators. Results from a small, scalable, artificial air storage system of 360m3 show that one charge results in approximate temperature loss of 29oC for compression and 10oC for expansion (in a single cycle). A pressure charge of about 6bars from a compressor speed of 300rpm was also obtained and was able to maintain a constant alternator speed of 2500rpm on no load to produce electricity at 230Vac during expansion. When advanced and standardized, the air storage could provide a medium for cheap electrical energy storage for small scale renewable sources and a means for electrical energy availability in remote rural environments.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132036866","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

Strength Potentials of Rattan Reinforced Concrete Using Concrete Grade C30/35 采用C30/35级混凝土的藤钢筋混凝土强度潜势

FUOYE Journal of Engineering and Technology Pub Date : 2022-08-09 DOI: 10.46792/fuoyejet.v7i3.850

J. Wasiu, S. Joseph

{"title":"Strength Potentials of Rattan Reinforced Concrete Using Concrete Grade C30/35","authors":"J. Wasiu, S. Joseph","doi":"10.46792/fuoyejet.v7i3.850","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.850","url":null,"abstract":"Steel reinforcements have been widely used in concrete work in order to help improve its tensile resistance against applied loads. But steel is susceptible to corrosion due to water ingress through cracks, increased in cost of purchase and dangers associated with maximizing profit due to greed. Rattan fiber is also known to be a suitable structural material both in compression and tension. Hence, this study examines the extent of application of rattan in concrete. Experimental investigation was carried out on conventional concrete (CC), rattan reinforced concrete cubes (RR, RS and SR), control beams (CTBM) and rattan reinforced concrete beams (RRBM, RSBM and SRBM). Compressive and Flexural strength tests were conducted on the samples at 7,14,21 and 28 days. The results revealed great potential of rattan when included in concrete work. The strength obtained is approximately twice that of conventional concrete. The modulus of Rupture (MoR) for all beam samples also revealed similar trend. The study concludes that rattan can partially replace main steel bars by approximately 50% in beams with suitable applications in light load bearing elements like lintel beams, roof beams, and spandrel.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"02 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131172363","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

Effect of Cashew Nut Shell Ash on Volumetric Shrinkage of Compacted Clay Soil 腰果壳灰对压实粘土体积收缩率的影响

FUOYE Journal of Engineering and Technology Pub Date : 2022-07-26 DOI: 10.46792/fuoyejet.v7i3.825

Joseph Sule, Michael U. Ehikwe

{"title":"Effect of Cashew Nut Shell Ash on Volumetric Shrinkage of Compacted Clay Soil","authors":"Joseph Sule, Michael U. Ehikwe","doi":"10.46792/fuoyejet.v7i3.825","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.825","url":null,"abstract":" \u0000Hydraulic conductivity value of a compacted clay soil can rise above the minimum regulatory value during desiccation thereby induces large cracks in an engineered landfill. In the quest to reduce the degree of cracking that will be generated dues to the volumetric shrinkage of the compacted clay soil, which in turn will reduce the amount of leachate that will be percolating into the underground water system, an investigation was performed by treating a clay soil with up to 16% Cashew Nut Shell Ash (CNSA) content using three compactive efforts (Standard proctor (SP), West African standard (WAS) and Modified Proctor (MP)) at -2, 0, 2 and 4% of optimum moisture content (OMC). Samples were extruded from the compaction moulds and placed on the laboratory table to air dry for 30 days at a uniform regulated temperature of 27 ± 2Oc in order to evaluate the suitability of the material for the construction of cover and liner in an engineered landfill. Results indicated that the OMC and maximum dry density (MDD) increased with higher CNSA treatment. Volumetric shrinkage strain (VSS) increased with; higher CNSA, higher molding moisture content and moisture content relative to the optimum. Effect of CNSA on the soil showed that all specimens prepared at 2% dry of optimum to 4% wet of optimum for 4% and 8% soil-CNSA mixtures for the three compactive efforts, met the maximum allowable regulatory VSS criterion of4%, thus making the material suitable for the construction of cover and liner in waste dumping ground.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117189118","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 Quality Assessment of Selected Public Recreational Waters in Sango-Ota Metropolis, Nigeria 尼日利亚桑戈-太田市选定公共游憩水域的质量评价

FUOYE Journal of Engineering and Technology Pub Date : 2022-07-20 DOI: 10.46792/fuoyejet.v7i3.861

O. Opafola, Adebayo A. Badejo, O. S. Olaniyan, Olukunle O. Akisanya, G. Amusan, Sokowoncin E. Audam, Micheal O. Adebajo, James O. Ojuade

{"title":"The Quality Assessment of Selected Public Recreational Waters in Sango-Ota Metropolis, Nigeria","authors":"O. Opafola, Adebayo A. Badejo, O. S. Olaniyan, Olukunle O. Akisanya, G. Amusan, Sokowoncin E. Audam, Micheal O. Adebajo, James O. Ojuade","doi":"10.46792/fuoyejet.v7i3.861","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.861","url":null,"abstract":"The evaluation of selected public swimming pools within Sango-Ota metropolis was done to determine whether the pools adapt to the recommended WHO standard for swimming pool water. Six pools were selected based on the average population per use and user ratings. A total of 12 water samples were analysed physicochemical and microbial qualities using standard methods. The physicochemical characterization results are as follows; pH, 5.00 - 5.73 with mean value of 5.3; Total Dissolved Solids (TDS), 44.00 - 48.50 mg/L with mean 46.0 mg/L; Alkalinity, 24.00 - 28.50 mg/L with mean 26.0 mg/L; total hardness, 0.80 - 1.23 mg/L with mean 1.0 mg/L; iron, 0.05 – 0.69 mg/L with mean 0.3 mg/L; residual chlorine, 1.06 – 3.25 mg/L with mean 1.9 mg/L. The microbial characterization results are as follows; Zero count for Salmonella-shigella; Total Aerobic Plate Count (TAPC),1360 - 7270 cfu/mL; Escherichia coli count, 0 - 7 cfu/mL; coliform count, 2 – 25 cfu/mL. The isolated microorganisms from the pools were Escherichia coli, Proteus Vulgaris, Yersinia Enterocolitica, Proteus Mirabilis, Citrobacter Freundi and Vibro Chlorea occurred in 8.33%, respectively while Klebsiella Pneumonia, Entrobacter Aerogenes, Pseudonomas sp. occurred 16.67%. The pH of the analysed pools didn’t comply with the WHO standards while other physicochemical parameters conform to the standard except for pools C and F which had a higher concentration of iron. However, the existence of pathogenic microorganisms in the pools classified them as unsafe for swimming activities. This study recommends routine testing and comprehensive treatments with respect to regulatory standards. Pool managers should strictly adhere to the bathing load limit and ensure the pool users take shower before using the swimming pools to forestall the outbreak of waterborne diseases","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124955346","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

A Review of the Compressive Strength Predictor Variables of Geopolymer Concrete 地聚合物混凝土抗压强度预测变量研究进展

FUOYE Journal of Engineering and Technology Pub Date : 2022-07-20 DOI: 10.46792/fuoyejet.v7i3.884

F. Faluyi, C. Arum, C. Ikumapayi, S. Alabi

引用次数: 1

Functional and Pasting Characteristics of Flour Blend from Wheat, Mushroom (Pleurotus ostreatus) and Unripe Plantain (Musa paradisiaca) Flour 小麦、蘑菇和大车前草混合粉的功能和糊化特性

FUOYE Journal of Engineering and Technology Pub Date : 2022-07-19 DOI: 10.46792/fuoyejet.v7i3.777

Folusho O. Ajala, G. Ogunlakin, G. O. Babarinde, J. Adeyanju

{"title":"Functional and Pasting Characteristics of Flour Blend from Wheat, Mushroom (Pleurotus ostreatus) and Unripe Plantain (Musa paradisiaca) Flour","authors":"Folusho O. Ajala, G. Ogunlakin, G. O. Babarinde, J. Adeyanju","doi":"10.46792/fuoyejet.v7i3.777","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.777","url":null,"abstract":"The functionality of blended samples is likely to be affected by incorporating other flour into wheat flour for baked goods, meanwhile this has not been fully researched. Therefore, the purpose of this study was to ascertain the functional and pasting qualities. of flour from wheat, mushroom and unripe plantain so as to maximize its potentials in baking industry. Using response surface methodology (optimal mixture design), different formulations were created from wheat, mushroom, and unripe plantain flour mixes. The ranges of values for bulk density (BD), water absorption capacity (WAC), swelling capacity (SC), solubility index (SI), dispersibility and least gelation concentration of the blends were 0.74-0.80 g/cm3, 76.15-94.63%, 478.45-574.01%, 8.10-13.72%, 73.30-77.50% and 15.60-20.70%, respectively. The ranges of values for pasting properties: peak, trough, break-down, final-viscosity, setback, peak time and pasting temperature were 842-1727, 473-926, 368- 806, 1190-1875, 716 -989 RUV, 5.46- 5.87 min and 80.90 -91.85 °C, respectively. The flour blend formulation, 80:10:10 (wheat : mushroom : unripe plantain) gave best functional properties in terms of bulk density, water absorption capacity and swelling capacity and comparable well with 100% wheat flour. The result therefore showed that quality flour blend obtained from wheat, mushroom and unripe plantain has improved functionality than the individual wheat flour. This will be a valuable element in the formulation of foods such thick dough, soups, and baked goods.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126762600","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

A Novel Model for the Semantic Enrichment of an Ontology Alignment System 本体对齐系统语义丰富的新模型

FUOYE Journal of Engineering and Technology Pub Date : 2022-07-02 DOI: 10.46792/fuoyejet.v7i3.819

M. D. Abdullahi, S. Aliyu, Donfack A. F. Kana

{"title":"A Novel Model for the Semantic Enrichment of an Ontology Alignment System","authors":"M. D. Abdullahi, S. Aliyu, Donfack A. F. Kana","doi":"10.46792/fuoyejet.v7i3.819","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.819","url":null,"abstract":"In many applications, ontology alignment is a difficult challenge, and it is a major concern for interoperability and domain specialists in information systems. Although there are various methods for ontology alignment, most of them ignore ontological links such as subsumption and aggregation. Furthermore, traditional alignment methods provide little or no information about the underlying structure of the correspondences between ideas that they identify, limiting them to basic links between matched concepts. However, many actions, such as ontology mergers, ontology evolution, or data conversion, require more detailed information, such as the actual relationship type of correspondences matches or information about the cardinality of a correspondence (one-to-one or one-to-many). We employed an enrichment technique to build an upgrade to the present ontology alignment tool (Falcon AO++) that recognizes and adds more semantic information to a created ontology mapping in this study. The improved mapping now supports equal, is-a, inverse is-a, part-of, has-a, and related semantic connection types. To enable semi-automated mapping to correct and detect more sorts of correspondences, the enrichment technique leverages a variety of linguistic, structural, and background knowledge. As an outcome, more expressive mappings may be created. In terms of precision, recall, and f-measure, Falcon-AO++ and eFalcon-AO perform better by 18.1 percent, 20.2 percent, and 18.6 percent, respectively.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115912820","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 a Radio Frequency Energy Harvester Impedance Matching Circuit for 2.4 GHz Microstrip Patch Antenna 2.4 GHz微带贴片天线射频能量采集器阻抗匹配电路设计

FUOYE Journal of Engineering and Technology Pub Date : 2022-06-30 DOI: 10.46792/fuoyejet.v7i2.814

O. Tooki, Olaide T. Olubolade, Alphaeus Odaba

{"title":"Design of a Radio Frequency Energy Harvester Impedance Matching Circuit for 2.4 GHz Microstrip Patch Antenna","authors":"O. Tooki, Olaide T. Olubolade, Alphaeus Odaba","doi":"10.46792/fuoyejet.v7i2.814","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i2.814","url":null,"abstract":"Energy Harvesting (EH) is the process of capturing energy from external sources and storing it for small wireless autonomous devices. Radio Frequency (RF) EH aims at capturing ambient energy with an antenna and transforms this energy into exploitable power. Different energy fields are available in nature from which energy can be harvested. An impedance matching circuit for an RF energy harvester was designed in this paper. The design is made up of the antenna circuit which captures the RF signals from the mobile and Wi-Fi bands in the atmosphere, and the impedance network that matches between the RF source and the load to capture the power. A Villard voltage multiplier was employed to rectify and step up the captured RF signal into a useable direct current output voltage. Due to the low output voltage obtained after rectification, the voltage was boosted to the power needed for the load. The output of the boost converter was then used to charge a lithium-ion battery. In this paper, Intelligent Schematic Input System proteus professional suite software was used in simulating the designed system. This was used to analyze the performance of each system’s component and to evaluate the quality of the designed circuitry. RF energy harvesters convert electromagnetic waves into usable DC voltage. However, the harvested energy is relatively low to the required voltage. Different techniques have been proposed, but the complexity of energy harvesting persists. This discourages the use of low-power devices. Bridging this gap will improve energy harvesters’ efficiency.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124391222","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

Biocomposite production from waste low-density polyethylene sachets and Prosopis africana pods biomass residue 利用废弃的低密度聚乙烯小袋和非洲藜豆荚生物质残渣生产生物复合材料

FUOYE Journal of Engineering and Technology Pub Date : 2022-06-30 DOI: 10.46792/fuoyejet.v7i2.761

T. E. Odetoye, Victor A. Adeoye

{"title":"Biocomposite production from waste low-density polyethylene sachets and Prosopis africana pods biomass residue","authors":"T. E. Odetoye, Victor A. Adeoye","doi":"10.46792/fuoyejet.v7i2.761","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i2.761","url":null,"abstract":"Plastic litter has become a major concern in solid waste management in recent times due to the adverse effect on the environment. In most developing countries, low-density polyethylene (LDPE) waste bags and sachets constitute a significant portion of plastic wastes that are generated daily, leading to an unnecessary environmental burden that needs to be addressed. In this study, we report the use of Prosopis africana pod particles as fillers in LDPE matrix (obtained from waste plastic sachets) for biocomposite production. Biocomposites were produced from 150µm average filler size for 10, 20, 30 wt% filler contents, using hand lay-up method. The compression, flexural, impact, and tensile strengths; water absorption and the biodegradability characteristics of the prepared biocomposites were determined using ASTM standards. In comparison with the control sample, the prepared biocomposites samples exhibited 103% improved impact strength of 34.3 J and better resistance to deformation (flexural modulus of 348.9 N/mm2; Young’s modulus of 237.9 N/mm2) at 30 wt % filler content. Biocomposite sample with the 10 wt% gave the highest tensile strength of 8.3 N/mm2. Scanning Electron Microscopy (SEM) analysis of the fractured sample shows good adhesion in the matrix. Findings from this work indicate that valorization of LDPE waste sachet and prosopis pods agricultural residues can be a value-addition, affordable waste management method for producing biocomposites towards indoor applications.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125649698","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