The current study looked at how heavy metals are distributed in groundwater and how they affect people's health during the pre-monsoon, monsoon, and post-monsoon seasons, water samples were collected from hand-dug wells and boreholes in the Malvan coastline and surrounding areas of Sindhudurg, MS, India's bordering the Arabian Sea. A total of 42 samples were collected and analyzed using standard methods for elements such as Iron (Fe), Zinc (Zn), Manganese (Mn), Copper (Cu), Fluoride (F), and Chromium (Cr). The data were analyzed using descriptive and inferential statistics. In the study area sampling location, the seasonal mean concentrations of heavy metals in groundwater samples (3 seasons) for Fe, Zn, Mn, Cu, Cr, and F were 1.39, 0.166, 1.148, 0.046, 0.008, and 0.509 mg/L, respectively. The metals were found in groundwater in the following order: Fe > Mn > F > Zn > Cu > Cr. The total Hazard Index (HI) of the metals in the groundwater samples revealed a high danger for people of all ages. In general, a high HI score (HI > 1.0) indicates negative non-cancer effects, with babies being the most vulnerable. For the studied metals, the cumulative cancer risk in the study areas is extremely low. The calculated health risk index indicates that Cr is high and the cancer risk on three categories such as Child, Adult and Infant is possible. Keywords: Seasonal assessment, Trace Elements, Groundwater contamination, human health risk, Malvan coastal area.
目前的研究着眼于重金属如何在地下水中分布，以及它们在季风前、季风期和季风后季节如何影响人们的健康，水样是从马尔万海岸线和印度与阿拉伯海接壤的MS Sindhudurg周边地区的手挖井和钻孔中收集的。共收集了42个样品，并使用铁(Fe)、锌(Zn)、锰(Mn)、铜(Cu)、氟(F)和铬(Cr)等元素的标准方法进行了分析。采用描述性统计和推理统计对数据进行分析。在研究区采样点，3个季节地下水样品中重金属元素Fe、Zn、Mn、Cu、Cr和F的季节平均浓度分别为1.39、0.166、1.148、0.046、0.008和0.509 mg/L。地下水中重金属含量依次为:Fe > Mn > F > Zn > Cu > Cr。地下水中重金属的总危害指数(HI)对各年龄段的人都有较高的危险性。一般来说，高HI分数(HI bbb1.0)表明对非癌症的负面影响，婴儿是最脆弱的。对于所研究的金属，研究区域的累积致癌风险极低。计算得出的健康风险指数表明，铬含量较高，儿童、成人和婴儿三大类都有可能发生癌症风险。关键词:季节性评价，微量元素，地下水污染，人体健康风险，马尔万沿海地区。
{"title":"Concerning Human Health Risks of Trace Elements Contamination in Groundwater Sources nearby the Arabian Sea, Malvan Coastal Area, India","authors":"Amanullah Adeel","doi":"10.37896/ymer21.08/10","DOIUrl":"https://doi.org/10.37896/ymer21.08/10","url":null,"abstract":"The current study looked at how heavy metals are distributed in groundwater and how they affect people's health during the pre-monsoon, monsoon, and post-monsoon seasons, water samples were collected from hand-dug wells and boreholes in the Malvan coastline and surrounding areas of Sindhudurg, MS, India's bordering the Arabian Sea. A total of 42 samples were collected and analyzed using standard methods for elements such as Iron (Fe), Zinc (Zn), Manganese (Mn), Copper (Cu), Fluoride (F), and Chromium (Cr). The data were analyzed using descriptive and inferential statistics. In the study area sampling location, the seasonal mean concentrations of heavy metals in groundwater samples (3 seasons) for Fe, Zn, Mn, Cu, Cr, and F were 1.39, 0.166, 1.148, 0.046, 0.008, and 0.509 mg/L, respectively. The metals were found in groundwater in the following order: Fe > Mn > F > Zn > Cu > Cr. The total Hazard Index (HI) of the metals in the groundwater samples revealed a high danger for people of all ages. In general, a high HI score (HI > 1.0) indicates negative non-cancer effects, with babies being the most vulnerable. For the studied metals, the cumulative cancer risk in the study areas is extremely low. The calculated health risk index indicates that Cr is high and the cancer risk on three categories such as Child, Adult and Infant is possible. Keywords: Seasonal assessment, Trace Elements, Groundwater contamination, human health risk, Malvan coastal area.","PeriodicalId":23848,"journal":{"name":"YMER Digital","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90396965","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}
The purpose- To determine factors affecting customers' decision to purchase organic tableware, awareness of customers towards organic dinnerware, and the effect of income on customers' attitudes toward organic tableware. The methodology-The study takes a quantitative approach where a total of 150 primary responses are collected using a structured questionnaire. The results are analysed using statistical tools of chi-square tests and Principal Component Analysis. Findings-Tableware includes the dishes we can use to set up our tables to consume food. These include various things like dishes, glassware as well as decorative items. Four factors extracted are availability and attitude, use at hotels and shops, quality, price consideration, and opinion of family and friends. It can be analyzed that there is no impact of income on factors - use of organic tableware at hotels and shops and the quality of organic tableware. However, there is an impact of income on factors -availability, attitude, price consideration, and opinion. Originality- Past studies have focused on various elements of Tableware use. However, studies on organic dinnerware purchasing, awareness, and income's effect on customer attitude are limited. Keywords- Tableware; Organic; Plastic; Pollution; Biodegradable; Eco-friendly
{"title":"FACTORS AFFECTING CONSUMER INTENT TO PURCHASE ORGANIC TABLEWARE","authors":"Naresh Sachdev, Aishwarya Khanna, T. Gupta","doi":"10.37896/ymer21.08/07","DOIUrl":"https://doi.org/10.37896/ymer21.08/07","url":null,"abstract":"The purpose- To determine factors affecting customers' decision to purchase organic tableware, awareness of customers towards organic dinnerware, and the effect of income on customers' attitudes toward organic tableware. The methodology-The study takes a quantitative approach where a total of 150 primary responses are collected using a structured questionnaire. The results are analysed using statistical tools of chi-square tests and Principal Component Analysis. Findings-Tableware includes the dishes we can use to set up our tables to consume food. These include various things like dishes, glassware as well as decorative items. Four factors extracted are availability and attitude, use at hotels and shops, quality, price consideration, and opinion of family and friends. It can be analyzed that there is no impact of income on factors - use of organic tableware at hotels and shops and the quality of organic tableware. However, there is an impact of income on factors -availability, attitude, price consideration, and opinion. Originality- Past studies have focused on various elements of Tableware use. However, studies on organic dinnerware purchasing, awareness, and income's effect on customer attitude are limited. Keywords- Tableware; Organic; Plastic; Pollution; Biodegradable; Eco-friendly","PeriodicalId":23848,"journal":{"name":"YMER Digital","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91485835","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}
In today’s scenario, natural fibers are used over synthetic fibers in fibers reinforced composites. Forthis present analysis, polypropylene composites with the content of Bauhinia vahlii stem fibers 10 wt% to 30 wt% will be prepared via Compression Moulding and characterised. The bauhinia vahlii stem fibers were modified with different chemical drafting and characterized. The mechanical, chemical, thermal and morphological analysis of the fiber as well as the composites will be carried out. KEYWORDS Bauhinia Vahlii Reinforced PP CompositePolypropylene Resin Mechanical and Thermal CharacterizationBV Fibers Coupling Agent
{"title":"Mechanical and Thermal Characterization of Bauhinia Vahlii Reinforced PP Composite","authors":"Rashmi Ranjan Sethi, S. P. Khadanga","doi":"10.37896/ymer21.07/b6","DOIUrl":"https://doi.org/10.37896/ymer21.07/b6","url":null,"abstract":"In today’s scenario, natural fibers are used over synthetic fibers in fibers reinforced composites. Forthis present analysis, polypropylene composites with the content of Bauhinia vahlii stem fibers 10 wt% to 30 wt% will be prepared via Compression Moulding and characterised. The bauhinia vahlii stem fibers were modified with different chemical drafting and characterized. The mechanical, chemical, thermal and morphological analysis of the fiber as well as the composites will be carried out. KEYWORDS Bauhinia Vahlii Reinforced PP CompositePolypropylene Resin Mechanical and Thermal CharacterizationBV Fibers Coupling Agent","PeriodicalId":23848,"journal":{"name":"YMER Digital","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74221382","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}
In India, 85% of existing buildings are unreinforced masonry and 5-7% are reinforced concrete and 5-7% are traditional buildings. And most buildings do not qualify to resist earthquakes, technically it can be said that they would not be able to resist earthquake loads. In the past, it is seen at the time of the earthquake, millions of lives and the economy of that region is affected. Demolition of ageing building mass is not only harmful to the environment but also it is not viable economically to rebuild all vulnerable buildings. Such buildings are recommended to be retrofitted. Recent earthquakes have demonstrated the need to identify and improve the performance of the existing seismic deficient buildings. For this reason, Seismic vulnerability assessment is considered a part of a better strategy to mitigate the risk and improve the resiliency of the country and its infrastructure. Due to the high volume of building archetypes in our country, for Seismic Vulnerability Assessment at a huge scale, a rapid, simplified method is being adopted that can facilitate the assessment procedure in a lesser computational time period. This paper was primarily engrossed in the analysis of some simplified methods proposed in the literature for assessing the simplified seismic vulnerability. A hypothetical building is analyzed using structural software (Etabs) by Nonlinear Dynamic Analysis Procedure. Using Etabs software, various structural parameters like Story Response Drift, Displacement (max) and Base Shear are considered and discussed. By proper interpretation of the result, a suitable measure to minimize vulnerability and ensure sustainability and cost-effectiveness, retrofitting strategies is recommended. Keywords: Seismic vulnerability, Existing Building, Simplified Analytical Method, Rapid Visual Screening, Detailed vulnerability assessment, Etabs, Non-linear Dynamic Analysis, Retrofitting Strategies
{"title":"Seismic Vulnerability Assessment of Building For Retrofitting Strategies: Simplified Vulnerability Assessment","authors":"Prabhu Agrawal, S. Jaiswal, Nishat Yadav","doi":"10.37896/ymer21.07/b2","DOIUrl":"https://doi.org/10.37896/ymer21.07/b2","url":null,"abstract":"In India, 85% of existing buildings are unreinforced masonry and 5-7% are reinforced concrete and 5-7% are traditional buildings. And most buildings do not qualify to resist earthquakes, technically it can be said that they would not be able to resist earthquake loads. In the past, it is seen at the time of the earthquake, millions of lives and the economy of that region is affected. Demolition of ageing building mass is not only harmful to the environment but also it is not viable economically to rebuild all vulnerable buildings. Such buildings are recommended to be retrofitted. Recent earthquakes have demonstrated the need to identify and improve the performance of the existing seismic deficient buildings. For this reason, Seismic vulnerability assessment is considered a part of a better strategy to mitigate the risk and improve the resiliency of the country and its infrastructure. Due to the high volume of building archetypes in our country, for Seismic Vulnerability Assessment at a huge scale, a rapid, simplified method is being adopted that can facilitate the assessment procedure in a lesser computational time period. This paper was primarily engrossed in the analysis of some simplified methods proposed in the literature for assessing the simplified seismic vulnerability. A hypothetical building is analyzed using structural software (Etabs) by Nonlinear Dynamic Analysis Procedure. Using Etabs software, various structural parameters like Story Response Drift, Displacement (max) and Base Shear are considered and discussed. By proper interpretation of the result, a suitable measure to minimize vulnerability and ensure sustainability and cost-effectiveness, retrofitting strategies is recommended. Keywords: Seismic vulnerability, Existing Building, Simplified Analytical Method, Rapid Visual Screening, Detailed vulnerability assessment, Etabs, Non-linear Dynamic Analysis, Retrofitting Strategies","PeriodicalId":23848,"journal":{"name":"YMER Digital","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81880871","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}
Searches for substances with anticoagulant activity are frequent, and medicinal plants have been considered interesting by some researchers since they are frequently used in popular medicine as remedies for dissolving the blood clots. The aim of this study was to verify the synergism between two plant extracts used as anticoagulant drugs– “tulsi (Ocimum sanctum) and ginger (Zingiber officinale) against blood coagulation, and for this purpose, the synergistic effect of O. sanctum (Tulsi) and Z. officinale (ginger) aqueous extract on clotting time. Coagulation activity of O. sanctum and Z. officinale was measured by capillary glass method on blood samples collected from regular blood donors. The blood was tested against different ratio of aqueous extract of O. sanctum and Z. officinale as follows: 0:0, 0:1, 1:0, 1:1, 1:2, 2:1. Result shows the aqueous extract of O. sanctum and Z. offinale prolonged the clotting time. The extracts; tulsi, and ginger presented the highest synergism rate with anticoagulant drugs
{"title":"Synergistic anticoagulant effect of Ocimum sanctum and Zingiber officinale in Blood Samples of Normal Individuals","authors":"S. Mishra","doi":"10.37896/ymer21.07/a7","DOIUrl":"https://doi.org/10.37896/ymer21.07/a7","url":null,"abstract":"Searches for substances with anticoagulant activity are frequent, and medicinal plants have been considered interesting by some researchers since they are frequently used in popular medicine as remedies for dissolving the blood clots. The aim of this study was to verify the synergism between two plant extracts used as anticoagulant drugs– “tulsi (Ocimum sanctum) and ginger (Zingiber officinale) against blood coagulation, and for this purpose, the synergistic effect of O. sanctum (Tulsi) and Z. officinale (ginger) aqueous extract on clotting time. Coagulation activity of O. sanctum and Z. officinale was measured by capillary glass method on blood samples collected from regular blood donors. The blood was tested against different ratio of aqueous extract of O. sanctum and Z. officinale as follows: 0:0, 0:1, 1:0, 1:1, 1:2, 2:1. Result shows the aqueous extract of O. sanctum and Z. offinale prolonged the clotting time. The extracts; tulsi, and ginger presented the highest synergism rate with anticoagulant drugs","PeriodicalId":23848,"journal":{"name":"YMER Digital","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78012766","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}
The prospect of employing ferrochrome slag (an industrial waste) along with human hair (a natural fiber) in epoxy as a novel material for extended life exists. In this study an effort has been made to research the possible uses of human hair, which can be easily and cheaply discovered, for creating goods with additional value. Some industrial wastes ( ferro chrome slag), have been investigated for use as filler components in these composites. The goal of the current research is to understand how human hair reinforced epoxy composites with particulate fillers are developed, characterized, and worn over time. The mechanical properties of the composites are evaluated under normal test conditions. Testing for sliding wear is done using Taguchi's L9 orthogonal array design in order to estimate the influence of different process parameter on wear response of the fabricated composites. In accordance with Taguchi's experimental design, the fiber content and sliding velocity are the two factors that have the most significance on wear response of the developed PMCs. It was observed that the wear rate increases with an increase in sliding velocity, whereas it reduces with an increase in fiber content. This experiment reveals that presence of human beard along with ferro slag particles increase the wear resistance of normal epoxy. Keywords: Human Beard, Ferro-Chrome slag, PMCs, Mechanical Properties, Sliding Wear
{"title":"Sliding Wear Response of Human Beard Reinforced Epoxy Based Composites Filled with Ferrochrome Slag","authors":"M. Behera, S. K. Mishra","doi":"10.37896/ymer21.07/b5","DOIUrl":"https://doi.org/10.37896/ymer21.07/b5","url":null,"abstract":"The prospect of employing ferrochrome slag (an industrial waste) along with human hair (a natural fiber) in epoxy as a novel material for extended life exists. In this study an effort has been made to research the possible uses of human hair, which can be easily and cheaply discovered, for creating goods with additional value. Some industrial wastes ( ferro chrome slag), have been investigated for use as filler components in these composites. The goal of the current research is to understand how human hair reinforced epoxy composites with particulate fillers are developed, characterized, and worn over time. The mechanical properties of the composites are evaluated under normal test conditions. Testing for sliding wear is done using Taguchi's L9 orthogonal array design in order to estimate the influence of different process parameter on wear response of the fabricated composites. In accordance with Taguchi's experimental design, the fiber content and sliding velocity are the two factors that have the most significance on wear response of the developed PMCs. It was observed that the wear rate increases with an increase in sliding velocity, whereas it reduces with an increase in fiber content. This experiment reveals that presence of human beard along with ferro slag particles increase the wear resistance of normal epoxy. Keywords: Human Beard, Ferro-Chrome slag, PMCs, Mechanical Properties, Sliding Wear","PeriodicalId":23848,"journal":{"name":"YMER Digital","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73614392","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}
The purpose of this paper is to introduce a new class of sets called Rough bi-semi locally closed sets and Rough bi-semi generalized locally closed sets in Rough bitopological space and studied some of its properties. Keywords: Rough bitopology, Rough bi-closed Sets, Rough bi-sg closed Sets, Rough bi-SLC Sets, Rough bi-SLC* Sets,, Rough bi-SGLC Sets, Rough bi-SGLC* set, Rough bi-SGLC** set
{"title":"ON ROUGH BI-SEMI GENERALIZED LOCALLY CLOSED SETS IN ROUGH SET BITOPOLOGICAL SPACES","authors":"J. SHEEBA PRIYADHARSHINI, K. Bhuvaneswari","doi":"10.37896/ymer21.07/a8","DOIUrl":"https://doi.org/10.37896/ymer21.07/a8","url":null,"abstract":"The purpose of this paper is to introduce a new class of sets called Rough bi-semi locally closed sets and Rough bi-semi generalized locally closed sets in Rough bitopological space and studied some of its properties. Keywords: Rough bitopology, Rough bi-closed Sets, Rough bi-sg closed Sets, Rough bi-SLC Sets, Rough bi-SLC* Sets,, Rough bi-SGLC Sets, Rough bi-SGLC* set, Rough bi-SGLC** set","PeriodicalId":23848,"journal":{"name":"YMER Digital","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83005744","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}
This study was aimed at building a robust quantitative structure–activity relationship (QSAR) to predict the anti-proliferate activity of 1,3,4-thiadiazole derivatives against the A549 lung cancer cell lines. The semi-empirical PM7 parametrization approach was used to optimize the complete set of 1,3,4-thiadiazole derivatives and various classes of molecular descriptors have been calculated. We built models using Fisher score and the best subset selection for feature selection, and the final model was developed using the multiple linear regression technique, all in accordance with the rigorous Organization for Economic Co-operation and Development (OECD) requirements. Furthermore, various internationally agreed severe validation parameters were used to validate the model. Overall, our established model for quick prediction should be relevant to new, untested, or not yet produced compounds that fall within the applicability domain (AD) of the model. The drug-likeness properties of the 10 compounds with the greatest activity value were also calculated using Lipinski's rule properties. Keywords: QSAR, Thiadiazole derivatives, A549, PM7, OECD
{"title":"QSAR and Drug-likeness Studies of Thiadiazole Derivatives Against Lung Cancer","authors":"Mouad Mouhsin","doi":"10.37896/ymer21.07/b1","DOIUrl":"https://doi.org/10.37896/ymer21.07/b1","url":null,"abstract":"This study was aimed at building a robust quantitative structure–activity relationship (QSAR) to predict the anti-proliferate activity of 1,3,4-thiadiazole derivatives against the A549 lung cancer cell lines. The semi-empirical PM7 parametrization approach was used to optimize the complete set of 1,3,4-thiadiazole derivatives and various classes of molecular descriptors have been calculated. We built models using Fisher score and the best subset selection for feature selection, and the final model was developed using the multiple linear regression technique, all in accordance with the rigorous Organization for Economic Co-operation and Development (OECD) requirements. Furthermore, various internationally agreed severe validation parameters were used to validate the model. Overall, our established model for quick prediction should be relevant to new, untested, or not yet produced compounds that fall within the applicability domain (AD) of the model. The drug-likeness properties of the 10 compounds with the greatest activity value were also calculated using Lipinski's rule properties. Keywords: QSAR, Thiadiazole derivatives, A549, PM7, OECD","PeriodicalId":23848,"journal":{"name":"YMER Digital","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79998194","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}
The thesis discusses how the hydrodynamics of flow are affected by the Reynolds number and rotational speed around bodies. The experiment considers the Newtonian fluid flow over two cylinders placed side by side, results obtained from the numerical simulation was carried out by combination of various parameters in the range of 0 ≤ α a(non-dimensional rotational velocity) ≤ 4, 10 ≤ Re ≤ 40 , G=4 (gap between cylinder / diameter). The domain size taken into account was 240m. The simulation is carried out on each of these variables using ANSYS 16.0. While Fluent is used for the remaining of the simulation, Workbench is used for the geometry-related tasks. At each of these combinations of Reynolds Number and angular velocity, the value of the drag coefficient and lift coefficient is determined.. The results of the analysis provide a clear understanding of the intricate interaction between the cylinders' drag and lift coefficients, rotational velocity, and Reynolds number. Keywords: Reynolds number, dimensionless rotational velocity, Newtonian fluid ,Drag-lift Coefficient
{"title":"A detailed review of drag Force and lift force when fluid flow over rotating cylinders","authors":"G. Sagar Kumar Achary, S. P. Khadanga","doi":"10.37896/ymer21.07/b4","DOIUrl":"https://doi.org/10.37896/ymer21.07/b4","url":null,"abstract":"The thesis discusses how the hydrodynamics of flow are affected by the Reynolds number and rotational speed around bodies. The experiment considers the Newtonian fluid flow over two cylinders placed side by side, results obtained from the numerical simulation was carried out by combination of various parameters in the range of 0 ≤ α a(non-dimensional rotational velocity) ≤ 4, 10 ≤ Re ≤ 40 , G=4 (gap between cylinder / diameter). The domain size taken into account was 240m. The simulation is carried out on each of these variables using ANSYS 16.0. While Fluent is used for the remaining of the simulation, Workbench is used for the geometry-related tasks. At each of these combinations of Reynolds Number and angular velocity, the value of the drag coefficient and lift coefficient is determined.. The results of the analysis provide a clear understanding of the intricate interaction between the cylinders' drag and lift coefficients, rotational velocity, and Reynolds number. Keywords: Reynolds number, dimensionless rotational velocity, Newtonian fluid ,Drag-lift Coefficient","PeriodicalId":23848,"journal":{"name":"YMER Digital","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83728068","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}
Contamination of precious life sources with industrial waste including dairy effluent is an increasing concern worldwide. Over the past few years, titanium dioxide nanoparticles have drawn worldwide attention as an efficient photocatalyst and adsorbent for wastewater treatment. The current study refers to the potential of nitrogen doped titanium dioxide nanoparticles as an adsorbent and photocatalyst to purify wastewater from the local dairy to meet the quality of wastewater discharged into public sewers. The Nitrogen doped titanium dioxide (TiO2) Nano Materials were prepared by sol-gel technique and calcined at various temperatures. Characterization techniques such as SEM, XRD and FTIR were performed and Zeta potential was estimated. Efficiency of degradation as applied to dairy effluent has been examined varying the parameters such as time of exposure and dose of nanoparticles along with solution pH variation monitored during study. A good reduction in COD of about 99 % was observed after treatment under visible light. It is observed that calcining temperature affects activity of TiO2 nano particles. Furthermore, statistical analysis that represent experimental response as a function of independent parameters as well as analyse the interaction between the parameters was successfully employed. The results showed that TiO2 nanoparticles can be employed as adsorbents for the treatment of dairy waste water. Keywords: Adsorbent, Chemical oxygen demand, Dairy effluent, Doping, nanoparticles, TiO2
{"title":"TiO2 Nanoparticles as Bifunctional Adsorbent/Photocatalyst for Degradation of Effluent from Local Dairy in Telangana","authors":"A. P., S. S.V","doi":"10.37896/ymer21.07/b0","DOIUrl":"https://doi.org/10.37896/ymer21.07/b0","url":null,"abstract":"Contamination of precious life sources with industrial waste including dairy effluent is an increasing concern worldwide. Over the past few years, titanium dioxide nanoparticles have drawn worldwide attention as an efficient photocatalyst and adsorbent for wastewater treatment. The current study refers to the potential of nitrogen doped titanium dioxide nanoparticles as an adsorbent and photocatalyst to purify wastewater from the local dairy to meet the quality of wastewater discharged into public sewers. The Nitrogen doped titanium dioxide (TiO2) Nano Materials were prepared by sol-gel technique and calcined at various temperatures. Characterization techniques such as SEM, XRD and FTIR were performed and Zeta potential was estimated. Efficiency of degradation as applied to dairy effluent has been examined varying the parameters such as time of exposure and dose of nanoparticles along with solution pH variation monitored during study. A good reduction in COD of about 99 % was observed after treatment under visible light. It is observed that calcining temperature affects activity of TiO2 nano particles. Furthermore, statistical analysis that represent experimental response as a function of independent parameters as well as analyse the interaction between the parameters was successfully employed. The results showed that TiO2 nanoparticles can be employed as adsorbents for the treatment of dairy waste water. Keywords: Adsorbent, Chemical oxygen demand, Dairy effluent, Doping, nanoparticles, TiO2","PeriodicalId":23848,"journal":{"name":"YMER Digital","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73137534","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：