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Automatic Washing Machine with Direct Current Power Backup 带有直流电源备份的自动洗衣机
Pub Date : 2019-09-17 DOI: 10.47545/etrj.2019.4.2.051
A. Adenowo, A. Yussuff, S. O. Adetona, O. Ogunleye, O.K. Abioye, C.G. Ahubelem
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引用次数: 0
AN EMBEDDABLE SELF-REFLECTIVE SELF-ADAPTIVE SOFTWARE MODEL FOR RESOURCE MANAGEMENT 一种可嵌入自反射自适应的资源管理软件模型
Pub Date : 2019-09-17 DOI: 10.47545/etrj.2019.4.2.053
A. Adenowo, A. Yussuff, O. Oluyemi, K. Momoh
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引用次数: 1
PREPARATION AND CHARACTERIZATION OF SYNTHETIC CHITOSAN USING BIO-WASTE (SNAIL SHELL) 生物废弃物(蜗牛壳)合成壳聚糖的制备及表征
Pub Date : 2019-09-17 DOI: 10.47545/etrj.2019.4.2.071
K. Oyedeko, A. Akinyanju, J. Akinbomi, M. Lasisi, A. Adesina
In this paper chitosan was produced from chitin synthesis from inexpensive bio-waste (snail shell). This is a chemical process in which the chitin was produced through demineralization, deproteinization and decolorization while the chitosan obtained from chitin was by deacetylation. The physiochemical and functional properties such as nitrogen, moisture content, ash, degree of deacetylation, viscosity of the snail shell chitosan was considered. The product is characterized by Fourier transform infrared (FTIR) and scanning electron microscope (SEM). The degree of deacetylation (DD) is one of the main characterizing parameters of the chitosan. FTIR spectroscopy was used to calculate the degree of DD of chitosan. Chitosan with a high degree of deacetylation (76.7%) was obtained by deacetylation with 50% NaOH for 2 hrs at 85°C.SEM analysis shows the micro pores and microstructures of the sample. This is importance because the more the micro pores available in a sample, the better the adsorption capacity of that sample. The result of Energy Dispersive X- ray Spectroscopy (EDS) shows the elements Oxygen, Carbon, Magnesium, Calcium and phosphorus are present in the chitosan produced. The chitosan produced confirms the production of quality chitosan of low-cost adsorbent from the biowaste snail shell.
以廉价生物废弃物(蜗牛壳)为原料合成甲壳素,制备壳聚糖。这是甲壳素经脱矿、脱蛋白、脱色制备壳聚糖,甲壳素经脱乙酰得到壳聚糖的化学过程。考察了壳聚糖的理化性能和功能性能,如氮含量、水分含量、灰分、脱乙酰度、粘度等。用红外傅立叶变换(FTIR)和扫描电镜(SEM)对产物进行了表征。脱乙酰度(DD)是壳聚糖的主要表征参数之一。用FTIR光谱法计算壳聚糖的DD度。在85℃条件下,用50% NaOH脱乙酰2小时,得到脱乙酰度高(76.7%)的壳聚糖。SEM分析显示了样品的微观孔隙和微观结构。这一点很重要,因为样品中可用的微孔越多,样品的吸附能力就越好。能谱分析(EDS)结果表明,壳聚糖中含有氧、碳、镁、钙、磷等元素。所制壳聚糖证实了以生物废螺壳为原料制备高质量低成本壳聚糖的可行性。
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引用次数: 2
Operational Assessment of Multi-Tone Direct Sequence CDMA on Nakagami m-fading Channel 多音直接序列CDMA在Nakagami m-衰落信道上的业务评估
Pub Date : 2019-03-20 DOI: 10.47545/etrj.2019.4.1.048
A. Yussuff, H.B. Folorunsho
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引用次数: 0
ADDITIVE MANUFACTURING AND SAND-CASTING FOUNDRIES PRACTICES IN NIGERIA 尼日利亚的增材制造和砂型铸造铸造厂实践
Pub Date : 2019-03-20 DOI: 10.47545/etrj.2019.4.1.049
O. A. Adefuye, Nurudeen A. Raji, K. Adedeji, O. Fadipe, B. Olowu
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引用次数: 2
Approaching the Evolution of Path loss Prediction Models for Dryland and Wetland Environments in Lagos, Nigeria 尼日利亚拉各斯旱地和湿地环境路径损失预测模型的演变
Pub Date : 2019-03-20 DOI: 10.47545/etrj.2019.4.1.046
O. Shoewu, L. Oborkhale, E. Udo, L. Akinyemi
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引用次数: 1
The Development of a Mathematical Model for Waste Generation in a Satellite Community: A Case of Lagos State University, Epe Campus, Lagos State 卫星社区废物产生数学模型的发展:以拉各斯州立大学Epe校区为例
Pub Date : 2019-03-20 DOI: 10.47545/etrj.2019.4.1.047
L. Salami, M. Salami, K. Oyedeko, M. Olanipekun
{"title":"The Development of a Mathematical Model for Waste Generation in a Satellite Community: A Case of Lagos State University, Epe Campus, Lagos State","authors":"L. Salami, M. Salami, K. Oyedeko, M. Olanipekun","doi":"10.47545/etrj.2019.4.1.047","DOIUrl":"https://doi.org/10.47545/etrj.2019.4.1.047","url":null,"abstract":"","PeriodicalId":293460,"journal":{"name":"Engineering and Technology Research Journal","volume":"228 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121689945","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 Locally Water Based Drilling Fluid 局部水基钻井液的设计
Pub Date : 2018-09-20 DOI: 10.47545/etrj.2018.3.2.043
K. Oyedeko, O. Dawodu
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引用次数: 0
Artificial Neural Network (ANN) For Electronic Diagnosis in Telemedicine; Lagos University Teaching Hospital (LUTH) 远程医疗电子诊断中的人工神经网络(ANN)拉各斯大学教学医院(LUTH)
Pub Date : 2018-09-20 DOI: 10.47545/etrj.2018.3.2.042
P. B. Osofisan, H. A. Akanji
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引用次数: 0
The Potential of Cassava Peel and Applicable Technologies for Sustainable Biogas-Bio Ethanol Production 木薯皮在可持续沼气-生物乙醇生产中的潜力及应用技术
Pub Date : 2018-09-20 DOI: 10.47545/etrj.2018.3.2.044
A. .. Yussouff, W. Raji, S. Ajibade, S. Olowo, A. O. Yussouff
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引用次数: 1
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