Pub Date : 2022-05-05DOI: 10.29121/ijoest.v6.i2.2022.310
N. Sisodia, Ravi Gor
This paper analyses the effect of different interest rates on Black-Scholes’ and Heston Option Pricing Model. We discuss the concept of interest rate in the two Models. We compare the two models for the parameter –‘Interest Rate’. A mathematical tool, UMBRAE (Unscaled Mean Bounded Relative Absolute Error) is used to compare the two models for pricing European call options. NSE (National Stock Exchange) is used for real market data and comparison is done through Moneyness (which is defined as the percentage difference of stock price and strike price) and Time-To-Maturity. Mathematical software – Matlab is used for all mathematical calculations. We observe that Black-Scholes’ model is preferred for lower interest rates than Heston options pricing model and vice-versa. This study is helpful in derivatives market.
{"title":"A STUDY OF OPTION PRICING MODELS WITH DISTINCT INTEREST RATES","authors":"N. Sisodia, Ravi Gor","doi":"10.29121/ijoest.v6.i2.2022.310","DOIUrl":"https://doi.org/10.29121/ijoest.v6.i2.2022.310","url":null,"abstract":"This paper analyses the effect of different interest rates on Black-Scholes’ and Heston Option Pricing Model. We discuss the concept of interest rate in the two Models. We compare the two models for the parameter –‘Interest Rate’. A mathematical tool, UMBRAE (Unscaled Mean Bounded Relative Absolute Error) is used to compare the two models for pricing European call options. NSE (National Stock Exchange) is used for real market data and comparison is done through Moneyness (which is defined as the percentage difference of stock price and strike price) and Time-To-Maturity. Mathematical software – Matlab is used for all mathematical calculations. We observe that Black-Scholes’ model is preferred for lower interest rates than Heston options pricing model and vice-versa. This study is helpful in derivatives market.","PeriodicalId":331301,"journal":{"name":"International Journal of Engineering Science Technologies","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117152511","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 : 2022-04-26DOI: 10.29121/ijoest.v6.i2.2022.315
S. Naranjo-Silva, J. Álvarez del Castillo
The present review compares and takes the main ideas around hydropower development in eight countries of the American continent, identifying its advantages and disadvantages, showing a vision concerning sustainability. It is conclusive that there are impacts for each megawatt produced with hydropower, and the generation structure that uses the water resource of natural currents is not highly clean. Moreover, there is the mistaken criterion for developing a renewable hydropower project related to sustainability, a wrong approach, as demonstrated with the review. The examination in the eight countries of America some analyzes and the most concludes that, before considering a construction with thousands of dollars of investment and water contained in dams, the social and environmental analysis must respond to the restrictions on building new hydropower projects, promoting other unconventional renewable energy sources development. It is recommended to determine an objective quantitative approach of hydropower combining hydrology, energy efficiency, and interaction scenarios of future climate change to know the best energy grids diversifying balanced renewable and no renewable sources for each country.
{"title":"THE AMERICAN CONTINENT HYDROPOWER DEVELOPMENT AND THE SUSTAINABILITY: A REVIEW","authors":"S. Naranjo-Silva, J. Álvarez del Castillo","doi":"10.29121/ijoest.v6.i2.2022.315","DOIUrl":"https://doi.org/10.29121/ijoest.v6.i2.2022.315","url":null,"abstract":"The present review compares and takes the main ideas around hydropower development in eight countries of the American continent, identifying its advantages and disadvantages, showing a vision concerning sustainability. It is conclusive that there are impacts for each megawatt produced with hydropower, and the generation structure that uses the water resource of natural currents is not highly clean. Moreover, there is the mistaken criterion for developing a renewable hydropower project related to sustainability, a wrong approach, as demonstrated with the review. The examination in the eight countries of America some analyzes and the most concludes that, before considering a construction with thousands of dollars of investment and water contained in dams, the social and environmental analysis must respond to the restrictions on building new hydropower projects, promoting other unconventional renewable energy sources development. It is recommended to determine an objective quantitative approach of hydropower combining hydrology, energy efficiency, and interaction scenarios of future climate change to know the best energy grids diversifying balanced renewable and no renewable sources for each country.","PeriodicalId":331301,"journal":{"name":"International Journal of Engineering Science Technologies","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124306197","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 : 2022-04-09DOI: 10.29121/ijoest.v6.i2.2022.304
Wannyuy kingsly Mofor, Yakum Reneta Nafu
Agricultural and Industrial wastes have created waste management and pollution problems. The replacement of conventional ingredients in concrete production would reduce construction cost and proper waste management. The percentages of spikelet fibers in the composites were 0%, 0.25%, 0.5%, 0.75% and 1%. Concrete cubes and rectangular bricks of sizes 150mm x 150mm x 150mm and 40mm x 40mm x 160mm respectively with different percentages of spikelet fibers cured and tested after 7 and 28 days. The flexural strength, compressive strength, Density, slump workability, rate of water absorption and grain size were analyzed. It results that palm kernel shells was well graded and a good replacement for conventional aggregates. The density and compressive strength after 28 days curing were within the range 1645 to 1749kg/m3 and 15.35 to 19.21kg/m3 respectively. It was observed that slump workability reduced while compressive strength, water absorption, density and flexural strength increases proportionately with fiber contents.
{"title":"EFFECTS OF USING PALM KERNEL SHELL AND SPIKELET FIBERS AS COARSE AGGREGATE FOR LIGHTWEIGHT CONCRETE","authors":"Wannyuy kingsly Mofor, Yakum Reneta Nafu","doi":"10.29121/ijoest.v6.i2.2022.304","DOIUrl":"https://doi.org/10.29121/ijoest.v6.i2.2022.304","url":null,"abstract":"Agricultural and Industrial wastes have created waste management and pollution problems. The replacement of conventional ingredients in concrete production would reduce construction cost and proper waste management. The percentages of spikelet fibers in the composites were 0%, 0.25%, 0.5%, 0.75% and 1%. Concrete cubes and rectangular bricks of sizes 150mm x 150mm x 150mm and 40mm x 40mm x 160mm respectively with different percentages of spikelet fibers cured and tested after 7 and 28 days. The flexural strength, compressive strength, Density, slump workability, rate of water absorption and grain size were analyzed. It results that palm kernel shells was well graded and a good replacement for conventional aggregates. The density and compressive strength after 28 days curing were within the range 1645 to 1749kg/m3 and 15.35 to 19.21kg/m3 respectively. It was observed that slump workability reduced while compressive strength, water absorption, density and flexural strength increases proportionately with fiber contents.","PeriodicalId":331301,"journal":{"name":"International Journal of Engineering Science Technologies","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128644611","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 : 2022-04-05DOI: 10.29121/ijoest.v6.i2.2022.302
S. Behera, J. K. Pati, P. K. Raut, K. L. Mahanta
In this research article, we implement a methodology for solving fuzzy transportation problems involving linear fractional fuzzy numbers. The main aim of this paper is to find optimum values of the fuzzy transportation problems by simplex method with the help of a triangular fuzzy number (TFN) as the costs of objective function. The outcome of this method is explained with a numerical example.
{"title":"CALCULATION OF LINEAR FRACTIONAL FUZZY TRANSPORTATION PROBLEM USING SIMPLEX METHOD","authors":"S. Behera, J. K. Pati, P. K. Raut, K. L. Mahanta","doi":"10.29121/ijoest.v6.i2.2022.302","DOIUrl":"https://doi.org/10.29121/ijoest.v6.i2.2022.302","url":null,"abstract":"In this research article, we implement a methodology for solving fuzzy transportation problems involving linear fractional fuzzy numbers. The main aim of this paper is to find optimum values of the fuzzy transportation problems by simplex method with the help of a triangular fuzzy number (TFN) as the costs of objective function. The outcome of this method is explained with a numerical example.","PeriodicalId":331301,"journal":{"name":"International Journal of Engineering Science Technologies","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125401972","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 : 2022-03-27DOI: 10.29121/ijoest.v6.i2.2022.299
Kedir Aliyi Koroche
In this paper, third order iterative scheme is presented for working the solution the non-linear stochastic parabolic equation in one dimensional space. First, the given result sphere is discretized by using invariant discretization grid point. Next, by using Taylor series expansion we gain the discretization of the model problem. From this, we gain the system of nonlinear ordinary difference equations. By rearranging this scheme, we gain iterative schemes which is called gauss Jacobean iterative scheme. To validate the convergences of the proposed system, three model illustrations are considered and answered it at each specific grid point on its result sphere. The coincident (convergent) analysis of the present techniques is worked by supported the theoretical and fine statements and the delicacy of the result is attained. The delicacy of the present techniques has been shown in the sense of average absolute error (AAE), root mean square error norm and point-wise maximum absolute error norm and comparing gets crimes in the result attained in literature and these results are also presented in tables and graphs. The physical gets of results between numerical versus are also been presented in terms of graphs. As we can see from the table and graphs, the present system approach are approximates the exact result veritably well and it's relatively effective and virtually well suited for working the solution for non-linear parabolic equation.
{"title":"THIRD ORDER ITERATIVE METHOD FOR SOLVING NON-LINEAR PARABOLIC PARTIAL DIFFERENTIAL EQUATION IN FINANCIAL APPLICATION","authors":"Kedir Aliyi Koroche","doi":"10.29121/ijoest.v6.i2.2022.299","DOIUrl":"https://doi.org/10.29121/ijoest.v6.i2.2022.299","url":null,"abstract":"In this paper, third order iterative scheme is presented for working the solution the non-linear stochastic parabolic equation in one dimensional space. First, the given result sphere is discretized by using invariant discretization grid point. Next, by using Taylor series expansion we gain the discretization of the model problem. From this, we gain the system of nonlinear ordinary difference equations. By rearranging this scheme, we gain iterative schemes which is called gauss Jacobean iterative scheme. To validate the convergences of the proposed system, three model illustrations are considered and answered it at each specific grid point on its result sphere. The coincident (convergent) analysis of the present techniques is worked by supported the theoretical and fine statements and the delicacy of the result is attained. The delicacy of the present techniques has been shown in the sense of average absolute error (AAE), root mean square error norm and point-wise maximum absolute error norm and comparing gets crimes in the result attained in literature and these results are also presented in tables and graphs. The physical gets of results between numerical versus are also been presented in terms of graphs. As we can see from the table and graphs, the present system approach are approximates the exact result veritably well and it's relatively effective and virtually well suited for working the solution for non-linear parabolic equation.","PeriodicalId":331301,"journal":{"name":"International Journal of Engineering Science Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128849608","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 : 2022-03-26DOI: 10.29121/ijoest.v6.i2.2022.300
C. Sofronie
The contemporary world, say social scientists, is a continual triumph of the irrational. And researchers in the field of management, referring to the organizational man, find that today the individual behaves irrational rather than rational. The consequences of this social time are that no one finds their place, and depending on the degree of organization of a society this phenomenon is more or less accentuated. In societies in transition, for example, the phenomenon is even more pronounced, also due to the high level of uncertainty that exists globally, coupled with the absence of jobs, subsistence incomes and confusing hope. Mankind is in the state of AND-And. A bivalent state. It can mean complementarity and cooperation, but also opposition and competition between the two parties. In the latter case we are talking about the state of that AND which does not imply dynamic balance, complementarity but, on the contrary, instability, has pathological potential. Evil and Good are equal, with the obvious opposite. In such a state the image of the Good becomes vague. And Evil has already outlined a structure, it has a name. He is a Mr. Hyde who fights, within the same system, with Dr. Jekyll. Both Good and Evil have their own order, strongly signified. Life or death? Truth or Lie? Poor or rich? Honest or corrupt? What is in the mind of man? Our research, conducted over more than 20 years, has as its ultimate goal the creation of an Early Warning System on human behavior.
{"title":"WHAT IS IN THE MIND OF MAN!?","authors":"C. Sofronie","doi":"10.29121/ijoest.v6.i2.2022.300","DOIUrl":"https://doi.org/10.29121/ijoest.v6.i2.2022.300","url":null,"abstract":"The contemporary world, say social scientists, is a continual triumph of the irrational. And researchers in the field of management, referring to the organizational man, find that today the individual behaves irrational rather than rational. The consequences of this social time are that no one finds their place, and depending on the degree of organization of a society this phenomenon is more or less accentuated. In societies in transition, for example, the phenomenon is even more pronounced, also due to the high level of uncertainty that exists globally, coupled with the absence of jobs, subsistence incomes and confusing hope. Mankind is in the state of AND-And. A bivalent state. It can mean complementarity and cooperation, but also opposition and competition between the two parties. In the latter case we are talking about the state of that AND which does not imply dynamic balance, complementarity but, on the contrary, instability, has pathological potential. Evil and Good are equal, with the obvious opposite. In such a state the image of the Good becomes vague. And Evil has already outlined a structure, it has a name. He is a Mr. Hyde who fights, within the same system, with Dr. Jekyll. Both Good and Evil have their own order, strongly signified. Life or death? Truth or Lie? Poor or rich? Honest or corrupt? What is in the mind of man? Our research, conducted over more than 20 years, has as its ultimate goal the creation of an Early Warning System on human behavior.","PeriodicalId":331301,"journal":{"name":"International Journal of Engineering Science Technologies","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134301394","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 : 2022-03-25DOI: 10.29121/ijoest.v6.i2.2022.284
Qiang Di, Dongsong Yan, Yanjie Wu, X. Wang
The “layer” model is introduced into train operation simulation to develop a train operation simulation system (TOSS) ，which can be used for different locomotives, running parameters and lines. The virtual “layer” model can simulate any long-distance line on a limited track. The line models of different lines and stations can be constructed in the TOSS model definition. The system converts the actual line into the “layer” model, simulates the train operation on the line through the annular track model, and stores the operation-state parameters with the “layer” model structure. TOSS can statistically analyze the data generated through the data analysis subsystem, and restore the whole train-operation process by various animation demonstration. The application of “layer” model is the core of TOSS, which can realize the train operation simulation intuitively, and provide decisions basis for route planning, station docking or train operation scheduling scheme.
{"title":"DESIGN OF TRAIN OPERATION SIMULATION SYSTEM BASED ON \"LAYER \" MODEL","authors":"Qiang Di, Dongsong Yan, Yanjie Wu, X. Wang","doi":"10.29121/ijoest.v6.i2.2022.284","DOIUrl":"https://doi.org/10.29121/ijoest.v6.i2.2022.284","url":null,"abstract":"The “layer” model is introduced into train operation simulation to develop a train operation simulation system (TOSS) ，which can be used for different locomotives, running parameters and lines. The virtual “layer” model can simulate any long-distance line on a limited track. The line models of different lines and stations can be constructed in the TOSS model definition. The system converts the actual line into the “layer” model, simulates the train operation on the line through the annular track model, and stores the operation-state parameters with the “layer” model structure. TOSS can statistically analyze the data generated through the data analysis subsystem, and restore the whole train-operation process by various animation demonstration. The application of “layer” model is the core of TOSS, which can realize the train operation simulation intuitively, and provide decisions basis for route planning, station docking or train operation scheduling scheme.","PeriodicalId":331301,"journal":{"name":"International Journal of Engineering Science Technologies","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123601845","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 : 2022-02-25DOI: 10.29121/ijoest.v6.i1.2022.285
Andi Alim, A. Adam, Zainuddin, A. A, Rusnita
Male circumcision is beneficial and does not doubt health. So many studies show that male circumcision can prevent several diseases. In Jeneponto, some parents choose their children to practice Assunna' culture. The purpose of this study was to obtain information, examine and analyze in depth the health implications of Assunna' culture in the Bontoramba community, Jeneponto Regency. The research method used is qualitative with an ethnographic approach. Informants were drawn purposively with the snowball technique. The number of informants is 7 people (two regular informants, two supporting informants, and one key informant). The results showed that the Assunna' culture in the Bontoramba community was carried out by circumcision officers (hamlet priests). Circumcision officers do not wash their hands before starting the circumcision process. Chicken blood is smeared on the cut skin as a form of unification and followed by giving firewood ashes by sprinkling or smearing it directly. People who believe in taboo are not allowed to come out of the house and step on chicken manure and horse manure after being circumcised. When violated, will cause pain in the part that has been cut the skin. The circumcision process begins with sprinkling water on the genitals three times, reading a prayer and then blowing it into water which is believed to remove uncleanness and accelerate wound healing. The skin that is removed is only a little which is important to bleed so that the child's blood can be united with chicken blood. The pain experienced by the child lasts for one to two days. In conclusion, the health implications of Assunna' culture can lead to infection risk, disease prevention, and the concept of health and illness. It is hoped that collaboration between doctors/nurses and village priests in Assunna' cultural rituals is expected
{"title":"ASSUNNA' CULTURAL HEALTH IMPLICATIONS (STUDY OF HEALTH ANTHROPOLOGY IN BONTORAMBA COMMUNITY, JENEPONTO REGENCY)","authors":"Andi Alim, A. Adam, Zainuddin, A. A, Rusnita","doi":"10.29121/ijoest.v6.i1.2022.285","DOIUrl":"https://doi.org/10.29121/ijoest.v6.i1.2022.285","url":null,"abstract":"Male circumcision is beneficial and does not doubt health. So many studies show that male circumcision can prevent several diseases. In Jeneponto, some parents choose their children to practice Assunna' culture. The purpose of this study was to obtain information, examine and analyze in depth the health implications of Assunna' culture in the Bontoramba community, Jeneponto Regency. The research method used is qualitative with an ethnographic approach. Informants were drawn purposively with the snowball technique. The number of informants is 7 people (two regular informants, two supporting informants, and one key informant). The results showed that the Assunna' culture in the Bontoramba community was carried out by circumcision officers (hamlet priests). Circumcision officers do not wash their hands before starting the circumcision process. Chicken blood is smeared on the cut skin as a form of unification and followed by giving firewood ashes by sprinkling or smearing it directly. People who believe in taboo are not allowed to come out of the house and step on chicken manure and horse manure after being circumcised. When violated, will cause pain in the part that has been cut the skin. The circumcision process begins with sprinkling water on the genitals three times, reading a prayer and then blowing it into water which is believed to remove uncleanness and accelerate wound healing. The skin that is removed is only a little which is important to bleed so that the child's blood can be united with chicken blood. The pain experienced by the child lasts for one to two days. In conclusion, the health implications of Assunna' culture can lead to infection risk, disease prevention, and the concept of health and illness. It is hoped that collaboration between doctors/nurses and village priests in Assunna' cultural rituals is expected","PeriodicalId":331301,"journal":{"name":"International Journal of Engineering Science Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130544238","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 : 2022-02-18DOI: 10.29121/ijoest.v6.i1.2022.279
Bln Sai Srinath, Chandan Kumar Patnaikuni
Nowadays, many research works are being conducted throughout the world to develop cementitious materials that can replace cement. As a replacement for cement in concrete, fly ash, silica fume, GGBS, Metakaolin, Micro materials, Quartz powder, etc. are tried out in that order. This experiment tries out a new ultrafine material called Alccofine for a partial replacement. This concrete grade, M40, was developed for testing the cementing efficiency of Alccofine with a variety of percentages of replacement of cement with Alccofine, such as 5%, 10%, 15%, and 20%. A design mix has been developed for M40 grade and cubes have been cast with varying percentages of alccofine, as described above. A discussion of the results has been provided. Compared to other mix percentages, 15% of alccofine replacement with cement produces good strength. The SEM images show that Alccofine is found to have good cementing efficiency in earlier ages of concrete.
{"title":"CONCRETE PROPERTIES EVALUATED BY REPLACING CEMENT WITH ALCCOFINE","authors":"Bln Sai Srinath, Chandan Kumar Patnaikuni","doi":"10.29121/ijoest.v6.i1.2022.279","DOIUrl":"https://doi.org/10.29121/ijoest.v6.i1.2022.279","url":null,"abstract":"Nowadays, many research works are being conducted throughout the world to develop cementitious materials that can replace cement. As a replacement for cement in concrete, fly ash, silica fume, GGBS, Metakaolin, Micro materials, Quartz powder, etc. are tried out in that order. This experiment tries out a new ultrafine material called Alccofine for a partial replacement. This concrete grade, M40, was developed for testing the cementing efficiency of Alccofine with a variety of percentages of replacement of cement with Alccofine, such as 5%, 10%, 15%, and 20%. A design mix has been developed for M40 grade and cubes have been cast with varying percentages of alccofine, as described above. A discussion of the results has been provided. Compared to other mix percentages, 15% of alccofine replacement with cement produces good strength. The SEM images show that Alccofine is found to have good cementing efficiency in earlier ages of concrete.","PeriodicalId":331301,"journal":{"name":"International Journal of Engineering Science Technologies","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121323822","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 : 2022-02-16DOI: 10.29121/ijoest.v6.i1.2022.275
Elham Sanagar Darbani, D. M. Parapari
In recent decades, urban planners have endeavoured to mitigate climate change, by adaptation programs in order to alleviate its adverse effects on human health and wellbeing. Outdoor thermal comfort as an environmental factor affects human health, as proven by various research studies conducted in different climates. The aim of this paper is to explore the components of urban heat island, outdoor thermal comfort, and urban form. The relationship between these keywords and variables that affect outdoor thermal comfort was also analysed. The research method is descriptive-analytical and besides that, the qualitative research method has been used. The components of each keyword have been extracted based on professional theories. Finally, the ideal model of outdoor thermal comfort is proposed. This paper gives a comprehensive view to urban heat islands, urban form and outdoor thermal comfort
{"title":"IDEAL MODEL FOR INVESTIGATING URBAN FORM EFFECTS ON URBAN HEAT ISLAND AND OUTDOOR THERMAL COMFORT: A REVIEW","authors":"Elham Sanagar Darbani, D. M. Parapari","doi":"10.29121/ijoest.v6.i1.2022.275","DOIUrl":"https://doi.org/10.29121/ijoest.v6.i1.2022.275","url":null,"abstract":"In recent decades, urban planners have endeavoured to mitigate climate change, by adaptation programs in order to alleviate its adverse effects on human health and wellbeing. Outdoor thermal comfort as an environmental factor affects human health, as proven by various research studies conducted in different climates. The aim of this paper is to explore the components of urban heat island, outdoor thermal comfort, and urban form. The relationship between these keywords and variables that affect outdoor thermal comfort was also analysed. The research method is descriptive-analytical and besides that, the qualitative research method has been used. The components of each keyword have been extracted based on professional theories. Finally, the ideal model of outdoor thermal comfort is proposed. This paper gives a comprehensive view to urban heat islands, urban form and outdoor thermal comfort","PeriodicalId":331301,"journal":{"name":"International Journal of Engineering Science Technologies","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128255682","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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