Information and communication technology (ICT) plays an important role in our everyday life such that it becomes indispensable in the contemporary world. The use of information and communication technology (ICT) has become integral part of our life in such a way that it is inevitable in every aspect of human Endeavour ranging from educational needs, social needs, commercial needs and above all security needs. As part of human capacity building many ICT centers employ youth to manned the centers sometimes twenty four hours daily serving customers in the developing world. The ICT centers in the developing world is now becoming center of attraction as youth engage themselves to seek employment, to chart with friends as well as to propagate social and political views among others..In addition ICT provide the youth with technical know how of architectural design in building thereby earning a lot of money from their clients. It also provides job opportunities for the youth where maintenance and repairs are being carried out by the youth. This paper focuses on the major role being played by ICT in the developing world and its contribution to human capacity building and job creation.
{"title":"The role of information and communication technology (ICT) in providing job opportunities for youth in the developing world","authors":"M. Mohammed, Abdullahi M. Sadiq","doi":"10.9790/7388-0702025055","DOIUrl":"https://doi.org/10.9790/7388-0702025055","url":null,"abstract":"Information and communication technology (ICT) plays an important role in our everyday life such that it becomes indispensable in the contemporary world. The use of information and communication technology (ICT) has become integral part of our life in such a way that it is inevitable in every aspect of human Endeavour ranging from educational needs, social needs, commercial needs and above all security needs. As part of human capacity building many ICT centers employ youth to manned the centers sometimes twenty four hours daily serving customers in the developing world. The ICT centers in the developing world is now becoming center of attraction as youth engage themselves to seek employment, to chart with friends as well as to propagate social and political views among others..In addition ICT provide the youth with technical know how of architectural design in building thereby earning a lot of money from their clients. It also provides job opportunities for the youth where maintenance and repairs are being carried out by the youth. This paper focuses on the major role being played by ICT in the developing world and its contribution to human capacity building and job creation.","PeriodicalId":15693,"journal":{"name":"Journal of Emerging Trends in Engineering and Applied Sciences","volume":"47 1","pages":"174-179"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90903177","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}
Pub Date : 2014-01-01DOI: 10.17265/2159-5275/2014.06.005
D. O. Olanrewaju, A. Akinpelu
Construction is one of the largest users of energy, material resources and water and it is a formidable polluter. One of the major materials used in construction is concrete and ordinary concrete contains about 12 percent cement which is a major producer of greenhouse gas in the world. The use of waste materials as partial replacement of cement in concrete reduces greenhouse gases, frees up land fill space and reduces raw materials consumption. This contributes towards sustainable development, as in a sustainable society, nature is not subject to systematically increasing concentrations of substances extracted from the earth's crust. This research work explores the possibility of replacing some percentage of cement in concrete with marble sludge powder to produce lightweight concrete. This was achieved by determining the compressive strength and some hardened properties of concrete like sorptivity and carbonation with marble sludge. The results so far have been able to prove that lightweight concrete can be produced when some percentage of cement is replaced with this waste.
{"title":"Lightweight concrete using local industrial by-product","authors":"D. O. Olanrewaju, A. Akinpelu","doi":"10.17265/2159-5275/2014.06.005","DOIUrl":"https://doi.org/10.17265/2159-5275/2014.06.005","url":null,"abstract":"Construction is one of the largest users of energy, material resources and water and it is a formidable polluter. One of the major materials used in construction is concrete and ordinary concrete contains about 12 percent cement which is a major producer of greenhouse gas in the world. The use of waste materials as partial replacement of cement in concrete reduces greenhouse gases, frees up land fill space and reduces raw materials consumption. This contributes towards sustainable development, as in a sustainable society, nature is not subject to systematically increasing concentrations of substances extracted from the earth's crust. This research work explores the possibility of replacing some percentage of cement in concrete with marble sludge powder to produce lightweight concrete. This was achieved by determining the compressive strength and some hardened properties of concrete like sorptivity and carbonation with marble sludge. The results so far have been able to prove that lightweight concrete can be produced when some percentage of cement is replaced with this waste.","PeriodicalId":15693,"journal":{"name":"Journal of Emerging Trends in Engineering and Applied Sciences","volume":"52 1","pages":"183-186"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86371770","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}
Pub Date : 2011-12-01DOI: 10.13189/CEA.2014.020104
Shuaib H. Ahmad, S. Rafeeqi, S. Fareed
There is no general consensus or accepted theory for evaluating the ultimate shear capacity of reinforced concrete beams without web reinforcement as a result the requirements in most of Codes of practice are provided in the form of empirical equations for predicting the shear capacity of reinforced concrete beams. In this paper, a study is conducted to evaluate the predictive accuracy of 6 empirical equations used in different Code of practice to predict the shear capacity of reinforced concrete slender beams. Empirical equations used in some Codes are identified to be superior to other equations. In addition, a study was also conducted to assess predictive accuracy of 17 empirical equations proposed in the literature by several researchers to predict the shear capacity of reinforced concrete slender beams. Among these 17 empirical equations some equations are identified to be superior to the other proposed equations. On the basis of experimental results of reinforced concrete beams having shear span to depth ratio a/d ≥2.5, empirical equations are proposed which include basic parameters i.e. concrete compressive strength, shear span to depth ratio and ratio of longitudinal reinforcement. The coefficient of correlation (COR) for proposed empirical equation for predicting the shear capacity of reinforced concrete beams having depth d < 300mm and d ≥ 300mm without web reinforcement comes out to be 0.869 and 0.953 respectively.
{"title":"Shear strength of normal and light weight reinforced concrete deep beams without web reinforcement","authors":"Shuaib H. Ahmad, S. Rafeeqi, S. Fareed","doi":"10.13189/CEA.2014.020104","DOIUrl":"https://doi.org/10.13189/CEA.2014.020104","url":null,"abstract":"There is no general consensus or accepted theory for evaluating the ultimate shear capacity of reinforced concrete beams without web reinforcement as a result the requirements in most of Codes of practice are provided in the form of empirical equations for predicting the shear capacity of reinforced concrete beams. In this paper, a study is conducted to evaluate the predictive accuracy of 6 empirical equations used in different Code of practice to predict the shear capacity of reinforced concrete slender beams. Empirical equations used in some Codes are identified to be superior to other equations. In addition, a study was also conducted to assess predictive accuracy of 17 empirical equations proposed in the literature by several researchers to predict the shear capacity of reinforced concrete slender beams. Among these 17 empirical equations some equations are identified to be superior to the other proposed equations. On the basis of experimental results of reinforced concrete beams having shear span to depth ratio a/d ≥2.5, empirical equations are proposed which include basic parameters i.e. concrete compressive strength, shear span to depth ratio and ratio of longitudinal reinforcement. The coefficient of correlation (COR) for proposed empirical equation for predicting the shear capacity of reinforced concrete beams having depth d < 300mm and d ≥ 300mm without web reinforcement comes out to be 0.869 and 0.953 respectively.","PeriodicalId":15693,"journal":{"name":"Journal of Emerging Trends in Engineering and Applied Sciences","volume":"20 1","pages":"967-971"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89529869","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}
Study was carried out to develop empirical models for estimating the properties of developed composite material from agro waste (sawdust and palm kernel shell). The properties of the produced composite materials from agro waste obtained in previous experimental investigation were used to determine empirical model for hardness, yield strength, ultimate tensile strength, modulus of elasticity; modulus of rupture, internal bond strength, density, thickness swelling and water absorption. The values obtained from the empirical models were found to compare favorably with the experimental values. The mean percentage error were determined to be -0.02167% (hardness), -0.462167 % (yield strength), -0.03625 (ultimate tensile strength), -0.01045% (modulus of elasticity), -0.044057% (modulus of rupture), 0.001033% (internal bond strength), 0.2153 % (density), 0.5277% (thickness swelling) and 0.1365% (water absorption). These values were insignificant and below the maximum recommended error of 10%. These model performances were therefore found to be satisfactory and show good predictability.
{"title":"Empirical models for estimating properties of developed composite material from agro waste.","authors":"J. Osarenmwinda, J. C. Nwachukwu","doi":"10.13005/MSRI/070204","DOIUrl":"https://doi.org/10.13005/MSRI/070204","url":null,"abstract":"Study was carried out to develop empirical models for estimating the properties of developed composite material from agro waste (sawdust and palm kernel shell). The properties of the produced composite materials from agro waste obtained in previous experimental investigation were used to determine empirical model for hardness, yield strength, ultimate tensile strength, modulus of elasticity; modulus of rupture, internal bond strength, density, thickness swelling and water absorption. The values obtained from the empirical models were found to compare favorably with the experimental values. The mean percentage error were determined to be -0.02167% (hardness), -0.462167 % (yield strength), -0.03625 (ultimate tensile strength), -0.01045% (modulus of elasticity), -0.044057% (modulus of rupture), 0.001033% (internal bond strength), 0.2153 % (density), 0.5277% (thickness swelling) and 0.1365% (water absorption). These values were insignificant and below the maximum recommended error of 10%. These model performances were therefore found to be satisfactory and show good predictability.","PeriodicalId":15693,"journal":{"name":"Journal of Emerging Trends in Engineering and Applied Sciences","volume":"101 1","pages":"179-183"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80433967","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}
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