T. N. Thi, P. Thi, Mai Anh Le, Hoang Anh Nguyen, M. H. Nguyen, Hoai Phuong Nguyen Thi
Pleurotus citrinopileatus, also known in Vietnam as golden oyster mushroom, is a food rich in protein, fiber, essential amino acids, carbohydrates, water-soluble vitamins, and minerals. In particular, in the composition of yellow oyster mushrooms, there is β -1.3 - glucan with high biological activity as an active ingredient contributing to the intense stimulation of immunity. The study researched the process of extracting Pleurotus citrinopileatus mushroom by the assisted extraction of a combination of ultrasonic waves and pyrolysis in an aqueous solvent at 100°C, then evaluation of the biological activity of the extract to orient the application of functional foods to support cancer treatment. Some of the conditions of the Pleurotus citrinopileatus extraction process documented through the study are as follows: The solvent used for extraction was water, sodium chloride salt was used as a catalyst, with a ratio of 1g NaCl:100 ml of solution, the sample was ultrasonically processed for 60 min and magnetic stirred at 100°C for 2 hours, the concentration of Na2CO3 participating in the reaction was 20%, HCl concentration was 2M, the ratio of IPA treatment/mushroom residue was 1:1 (v/v). From Pleurotus citrinopileatus mushroom powder, the research team successfully obtained β- glucan.
杏鲍菇(Pleurotus citrinopileatus)在越南也被称为金平菇，是一种富含蛋白质、纤维、必需氨基酸、碳水化合物、水溶性维生素和矿物质的食物。特别是黄平菇的成分中含有具有较高生物活性的β -1.3 -葡聚糖，是一种具有强烈免疫刺激作用的活性成分。本研究采用超声辅助提取与100℃水溶液热解相结合的方法，对杏鲍菇的提取工艺进行了研究，并对提取液的生物活性进行了评价，为功能性食品在支持癌症治疗中的应用提供了方向。侧耳属的一些条件citrinopileatus萃取过程记录通过研究如下:用于萃取的溶剂是水,氯化钠盐被用作催化剂,1 g的比生理盐水:100毫升的解决方案,样品是超声加工60分钟和磁搅拌2小时在100°C, Na2CO3参与反应的浓度为20%,盐酸浓度为2 m,异丙醇治疗/蘑菇渣的比例是1:1 (v / v)。课题组从杏鲍菇粉中成功提取了β-葡聚糖。
{"title":"Study of the extraction process of the Pleurotus citrinopileatus mushroom and evaluation of the biological activity of the extract","authors":"T. N. Thi, P. Thi, Mai Anh Le, Hoang Anh Nguyen, M. H. Nguyen, Hoai Phuong Nguyen Thi","doi":"10.22161/ijaers.104.14","DOIUrl":"https://doi.org/10.22161/ijaers.104.14","url":null,"abstract":"Pleurotus citrinopileatus, also known in Vietnam as golden oyster mushroom, is a food rich in protein, fiber, essential amino acids, carbohydrates, water-soluble vitamins, and minerals. In particular, in the composition of yellow oyster mushrooms, there is β -1.3 - glucan with high biological activity as an active ingredient contributing to the intense stimulation of immunity. The study researched the process of extracting Pleurotus citrinopileatus mushroom by the assisted extraction of a combination of ultrasonic waves and pyrolysis in an aqueous solvent at 100°C, then evaluation of the biological activity of the extract to orient the application of functional foods to support cancer treatment. Some of the conditions of the Pleurotus citrinopileatus extraction process documented through the study are as follows: The solvent used for extraction was water, sodium chloride salt was used as a catalyst, with a ratio of 1g NaCl:100 ml of solution, the sample was ultrasonically processed for 60 min and magnetic stirred at 100°C for 2 hours, the concentration of Na2CO3 participating in the reaction was 20%, HCl concentration was 2M, the ratio of IPA treatment/mushroom residue was 1:1 (v/v). From Pleurotus citrinopileatus mushroom powder, the research team successfully obtained β- glucan.","PeriodicalId":13758,"journal":{"name":"International Journal of Advanced Engineering Research and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77429533","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 Bouc Wen magnetorheological damper model has eight unknown parameters, and the mathematical expression of the model includes the evolution quantity, absolute value term, and exponential term of differential equation, which complicates parameter identification. Researchers in related fields have made numerous attempts to solve the problem that the model's parameter identification method is complex and difficult to implement. A method combining nonlinear least square method is proposed to identify the parameters of the Bouc-Wen model of magnetorheological damper based on the damping characteristics test. Analyze the relationship between the identification parameters and the current and use the curve fitting toolbox to fit the functional relationship. At the same time, use the Simulink toolbox to create a Bouc-Wen simulation model of a magnetorheological damper and select sinusoidal signals with varying current, amplitude, and frequency for simulation and comparison. The Bouc-Wen model is validated using additional amplitude and frequency test data, and the results show a high degree of fit between the test and simulation results. This method can effectively identify the dynamic model's parameters.
{"title":"Research on Parameter Identification of Bouc-Wen Model of Magnetorheological Damper using Least Square Method","authors":"Bagtyyar Jorayev, Li Jing","doi":"10.22161/ijaers.105.14","DOIUrl":"https://doi.org/10.22161/ijaers.105.14","url":null,"abstract":"The Bouc Wen magnetorheological damper model has eight unknown parameters, and the mathematical expression of the model includes the evolution quantity, absolute value term, and exponential term of differential equation, which complicates parameter identification. Researchers in related fields have made numerous attempts to solve the problem that the model's parameter identification method is complex and difficult to implement. A method combining nonlinear least square method is proposed to identify the parameters of the Bouc-Wen model of magnetorheological damper based on the damping characteristics test. Analyze the relationship between the identification parameters and the current and use the curve fitting toolbox to fit the functional relationship. At the same time, use the Simulink toolbox to create a Bouc-Wen simulation model of a magnetorheological damper and select sinusoidal signals with varying current, amplitude, and frequency for simulation and comparison. The Bouc-Wen model is validated using additional amplitude and frequency test data, and the results show a high degree of fit between the test and simulation results. This method can effectively identify the dynamic model's parameters.","PeriodicalId":13758,"journal":{"name":"International Journal of Advanced Engineering Research and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80008756","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 paper seeks to analyze the use of Laplace transform in mathematics. However it contributes in mathematics as well as in arena of physics and engineering also. Laplace transform is an important skill to solve linear ordinary and partial differential equations with constant coefficients under suitable initial and boundary conditions. It is a good technique to simplify complex differential equations to a simpler form having polynomials in the area of stability and control. The current far-reaching use of the transform (mainly in engineering) happened during and soon after 2nd World War ,With the ease of application of Laplace transforms in myriad of scientific applications, many research softwares have made it possible to activate the Laplace transformable equations directly supporting the researchers. The transformation is usually used in stochastic performance modelling and analysis of computer and communication systems. It gets significant applications in various areas of physics, electrical engineering, control engineering, optics, mathematics and signal processing.
{"title":"Utility of Laplace Transform in Mathematics","authors":"D. Yadav","doi":"10.22161/ijaers.101.7","DOIUrl":"https://doi.org/10.22161/ijaers.101.7","url":null,"abstract":"The paper seeks to analyze the use of Laplace transform in mathematics. However it contributes in mathematics as well as in arena of physics and engineering also. Laplace transform is an important skill to solve linear ordinary and partial differential equations with constant coefficients under suitable initial and boundary conditions. It is a good technique to simplify complex differential equations to a simpler form having polynomials in the area of stability and control. The current far-reaching use of the transform (mainly in engineering) happened during and soon after 2nd World War ,With the ease of application of Laplace transforms in myriad of scientific applications, many research softwares have made it possible to activate the Laplace transformable equations directly supporting the researchers. The transformation is usually used in stochastic performance modelling and analysis of computer and communication systems. It gets significant applications in various areas of physics, electrical engineering, control engineering, optics, mathematics and signal processing.","PeriodicalId":13758,"journal":{"name":"International Journal of Advanced Engineering Research and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82794035","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}
Olorunjuwon O. Bello, Favour T. Martins, Temitope K. Bello, Bamikole W. Osungbemiro, Adebanke M. Ajagunna
A biofilm is a clump of bacteria living in a self-produced matrix of extracellular polymeric substances (EPS) linked to a biotic or abiotic surface, indicating that biofilms can exist on a variety of biotic and abiotic surfaces. Abiotic surfaces include floors, walls, drains, equipment, and food-contact surfaces, as well as biotic surfaces like meat, the oral cavity, the intestine, the urogenital tract, and the skin. Humans are a good source of biotic microenvironments for biofilm and bacterial growth, which leads to infectious diseases in most cases. The optimum biotic environment for bacteria to thrive requires a supply of nutrients, humidity, and the right temperature. Biofilms originate on inert surfaces or dead tissue, and they're frequent on medical devices and dead tissue fragments, but they can also form on living tissues. Biofilms' tolerance to harsh environments provides a favorable habitat for microbial populations, allowing for a more efficient flow of chemicals and information amongst microorganisms. As a result, biofilm resistance is a self-protective strategy for microbial development. Bacterial biofilms are detectable by direct and indirect methods and they could be controlled. Bacterial biofilm is a major cause of antimicrobial-resistant bacteria's development and spread, causing severe infections and increased mortality rates.
{"title":"Detection and Control of Bacterial Biofilms","authors":"Olorunjuwon O. Bello, Favour T. Martins, Temitope K. Bello, Bamikole W. Osungbemiro, Adebanke M. Ajagunna","doi":"10.22161/ijaers.103.6","DOIUrl":"https://doi.org/10.22161/ijaers.103.6","url":null,"abstract":"A biofilm is a clump of bacteria living in a self-produced matrix of extracellular polymeric substances (EPS) linked to a biotic or abiotic surface, indicating that biofilms can exist on a variety of biotic and abiotic surfaces. Abiotic surfaces include floors, walls, drains, equipment, and food-contact surfaces, as well as biotic surfaces like meat, the oral cavity, the intestine, the urogenital tract, and the skin. Humans are a good source of biotic microenvironments for biofilm and bacterial growth, which leads to infectious diseases in most cases. The optimum biotic environment for bacteria to thrive requires a supply of nutrients, humidity, and the right temperature. Biofilms originate on inert surfaces or dead tissue, and they're frequent on medical devices and dead tissue fragments, but they can also form on living tissues. Biofilms' tolerance to harsh environments provides a favorable habitat for microbial populations, allowing for a more efficient flow of chemicals and information amongst microorganisms. As a result, biofilm resistance is a self-protective strategy for microbial development. Bacterial biofilms are detectable by direct and indirect methods and they could be controlled. Bacterial biofilm is a major cause of antimicrobial-resistant bacteria's development and spread, causing severe infections and increased mortality rates.","PeriodicalId":13758,"journal":{"name":"International Journal of Advanced Engineering Research and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81935326","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}
Previous studies analyzed errors in English as a second language writing in school or university; no work has been conducted on Indian Madrasa (Islamic institution) students’ errors in English writing. The current study analyzes Madrasa students’ English writing errors. The students were grouped into an experimental group (EG) and control group (CG) and engaged for twenty-eight days, where only EG learners received blended learning (BL) treatment. The investigation used a pre-and post-test purposive design across all the groups. The errors were spotted from their write-ups belonging to morphological, syntactical, and orthographical categories. Next, errors were analyzed both quantitatively and qualitatively. Though the results revealed that both groups committed errors in all seven categories: morphological (article and preposition), syntactical (tense and word order), and orthographic (capitalization, spelling, and punctuation) types, EG’s errors were fewer than CG’s. This implies that BL can lead to effective remedial writing in Madrasa classrooms. In addition, EG’s pre-test scores were also greater than post-test scores, which has implications for adopting BL at different Madaris in India.
{"title":"Does Blended Learning Approach Affect Madrasa Students English Writing Errors? A Comparative Study","authors":"M. Usama","doi":"10.22161/ijaers.103.10","DOIUrl":"https://doi.org/10.22161/ijaers.103.10","url":null,"abstract":"Previous studies analyzed errors in English as a second language writing in school or university; no work has been conducted on Indian Madrasa (Islamic institution) students’ errors in English writing. The current study analyzes Madrasa students’ English writing errors. The students were grouped into an experimental group (EG) and control group (CG) and engaged for twenty-eight days, where only EG learners received blended learning (BL) treatment. The investigation used a pre-and post-test purposive design across all the groups. The errors were spotted from their write-ups belonging to morphological, syntactical, and orthographical categories. Next, errors were analyzed both quantitatively and qualitatively. Though the results revealed that both groups committed errors in all seven categories: morphological (article and preposition), syntactical (tense and word order), and orthographic (capitalization, spelling, and punctuation) types, EG’s errors were fewer than CG’s. This implies that BL can lead to effective remedial writing in Madrasa classrooms. In addition, EG’s pre-test scores were also greater than post-test scores, which has implications for adopting BL at different Madaris in India.","PeriodicalId":13758,"journal":{"name":"International Journal of Advanced Engineering Research and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89409063","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}
Recently, increased emphasis has been placed on the global issue of rapid economic growth, a relative energy scarcity, internal combustion engine exhaust waste heat, and environmental degradation. About 30 to 40 percent of the total heat delivered to the engine in the form of fuel is transformed into meaningful mechanical work. It is necessary to convert waste heat into usable work since the leftover heat is released into the environment through exhaust gases and engine cooling systems, leading to an increase in entropy and major environmental degradation. Due to the specific advantages of thermoelectric generators, they have emerged as a possible alternative green technology as waste heat recovering techniques like the thermoelectric generator (TEG) are developed. A techniquethat can directly convert the thermal energy found in exhaust gas into electric power is the subject of the majority of current study. In this research, a thermoelectric power generator based on exhaust gas was developed for industrial use. The exhaust gases in the pipe serve as the thermoelectric power generator's heat source. As a result, this study suggests and puts into practice a thermoelectric waste heat energy recovery system using the exhaust heat from running equipment. The goal of the project is to directly transform the heat energy from vehicle waste heat to electrical energy using a thermoelectric generator. Although the largest amount of electric power produced by such a system is just 10 W from a single TEG module, significant advancements in material science can make the ambitious aim of generating larger wattages by any means a real possibility.
{"title":"Analysis of Power Generation using Waste Heat in Industries using Thermoelectric Generator","authors":"Dr. Shubhangi Gondane, Priyanshu Watari, Niraj Borkar, Niteshgiree Paramanandigiree, Pavan Dhongade, Pawan Nagpure, Rohit Wanjari","doi":"10.22161/ijaers.105.16","DOIUrl":"https://doi.org/10.22161/ijaers.105.16","url":null,"abstract":"Recently, increased emphasis has been placed on the global issue of rapid economic growth, a relative energy scarcity, internal combustion engine exhaust waste heat, and environmental degradation. About 30 to 40 percent of the total heat delivered to the engine in the form of fuel is transformed into meaningful mechanical work. It is necessary to convert waste heat into usable work since the leftover heat is released into the environment through exhaust gases and engine cooling systems, leading to an increase in entropy and major environmental degradation. Due to the specific advantages of thermoelectric generators, they have emerged as a possible alternative green technology as waste heat recovering techniques like the thermoelectric generator (TEG) are developed. A techniquethat can directly convert the thermal energy found in exhaust gas into electric power is the subject of the majority of current study. In this research, a thermoelectric power generator based on exhaust gas was developed for industrial use. The exhaust gases in the pipe serve as the thermoelectric power generator's heat source. As a result, this study suggests and puts into practice a thermoelectric waste heat energy recovery system using the exhaust heat from running equipment. The goal of the project is to directly transform the heat energy from vehicle waste heat to electrical energy using a thermoelectric generator. Although the largest amount of electric power produced by such a system is just 10 W from a single TEG module, significant advancements in material science can make the ambitious aim of generating larger wattages by any means a real possibility.","PeriodicalId":13758,"journal":{"name":"International Journal of Advanced Engineering Research and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80614760","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 routing of power distribution and transmission lines is an important step to bring energy and modernize the lives of the population. The process involves complex multiple criteria decision-making. The area of interest must be carefully modeled in weighted and restricted areas based on geospatial data. This paper brings a methodology based on geoprocessing and Voronoi polygons to obtain one of the most important restricted areas in energy distribution lines, the rivers. Rivers are areas that should be avoided when their width exceeds the maximum distance between poles. The methodology consists in generate Voronoi edges from which the medial axis and the width of each point of the river are obtained. Then, a buffer is placed in each vertex of the river higher than a threshold. The result to the case study brings a restricted area of rivers of the State of Parana to help decision-makers in routing distribution energy lines with more assertiveness.
{"title":"River Area Restriction Method Based on Geoprocessing and Voronoi Polygons","authors":"Eduardo Chiarani, Elizabete Peixoto, Maricler Toigo","doi":"10.22161/ijaers.102.16","DOIUrl":"https://doi.org/10.22161/ijaers.102.16","url":null,"abstract":"The routing of power distribution and transmission lines is an important step to bring energy and modernize the lives of the population. The process involves complex multiple criteria decision-making. The area of interest must be carefully modeled in weighted and restricted areas based on geospatial data. This paper brings a methodology based on geoprocessing and Voronoi polygons to obtain one of the most important restricted areas in energy distribution lines, the rivers. Rivers are areas that should be avoided when their width exceeds the maximum distance between poles. The methodology consists in generate Voronoi edges from which the medial axis and the width of each point of the river are obtained. Then, a buffer is placed in each vertex of the river higher than a threshold. The result to the case study brings a restricted area of rivers of the State of Parana to help decision-makers in routing distribution energy lines with more assertiveness.","PeriodicalId":13758,"journal":{"name":"International Journal of Advanced Engineering Research and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72945557","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 effect of climate change on the morphometric features of the Ekole River in Yenagoa, Bayelsa State, Nigeria, is investigated in this study. The study employs morphometric analysis, which includes area, perimeter, mean stream length, drainage density, stream frequency, and basin length, as well as other factors like elongation ratio, form factor, shape factor, relief ratio, and density, with the assistance of the Shuttle radar topography mission (SRTM) and ArcGIS software. The Ekole River has an area of 83.76 km2 and a perimeter of 100.75 km, according to the findings. The average stream length was 0.41 km, and the average bifurcation ratio was 2.15. The drainage density was 2.28 km/km2 and the stream frequency was 5.56. The elogation ratio, form factor, shape factor, and relief ratio were also determined to be 0.20, 0.32 km/km, 3.14, and 3.11, respectively. These findings reveal that the Ekole River has a comparatively low discharge density and a dendritic drainage structure. The elongation ratio, form factor, and relief ratio, on the other hand, indicate that the basin of the river is comparatively elongated and narrow, with low relief. The present condition of the Ekole River is thought to be the result of climate change, which has impacted the river's hydrological processes. Finally, this research sheds light on the effects of climate change on the Ekole River and its morphometric features. Climate change has changed the river's hydrological processes and affected its morphometric parameters, according to the results.
{"title":"Morphometric analysis of the Ekole River as a consequence of climate change: A case study in Yenagoa, Bayelsa State, Nigeria","authors":"Jonathan Lisa Erebi, Digha Opaminola Nicholas","doi":"10.22161/ijaers.104.4","DOIUrl":"https://doi.org/10.22161/ijaers.104.4","url":null,"abstract":"The effect of climate change on the morphometric features of the Ekole River in Yenagoa, Bayelsa State, Nigeria, is investigated in this study. The study employs morphometric analysis, which includes area, perimeter, mean stream length, drainage density, stream frequency, and basin length, as well as other factors like elongation ratio, form factor, shape factor, relief ratio, and density, with the assistance of the Shuttle radar topography mission (SRTM) and ArcGIS software. The Ekole River has an area of 83.76 km2 and a perimeter of 100.75 km, according to the findings. The average stream length was 0.41 km, and the average bifurcation ratio was 2.15. The drainage density was 2.28 km/km2 and the stream frequency was 5.56. The elogation ratio, form factor, shape factor, and relief ratio were also determined to be 0.20, 0.32 km/km, 3.14, and 3.11, respectively. These findings reveal that the Ekole River has a comparatively low discharge density and a dendritic drainage structure. The elongation ratio, form factor, and relief ratio, on the other hand, indicate that the basin of the river is comparatively elongated and narrow, with low relief. The present condition of the Ekole River is thought to be the result of climate change, which has impacted the river's hydrological processes. Finally, this research sheds light on the effects of climate change on the Ekole River and its morphometric features. Climate change has changed the river's hydrological processes and affected its morphometric parameters, according to the results.","PeriodicalId":13758,"journal":{"name":"International Journal of Advanced Engineering Research and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90655580","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}
Thao Le Thi Phuong, Thoa Nguyen Thi Kim, Duyen Le Thi
Rare earth elements are widely used in many technological domains, including reactants, alloying elements, catalysts, batteries, superconductors, etc., because of their unique electro-optical properties. Recovery and separation of rare earth elements are particularly crucial due to the steadily rising demand, as they can enhance scarce resources and reduce radiation-related waste disposal harm. Reports about the harmful effects of rare earth elements on microbes, plants, and animals have become increasingly common in recent years. More dangerously, residues from rare earth elements can build up in the human body through ingestion or digestion in the food chain. Finding a practical and affordable way to use rare earth elements or remove them from our surroundings is therefore essential. To extract these elements, halloysite is processed using a straightforward chemical procedure to produce rare earth metal ion adsorbent materials. The Halloysite that has been processed has a rod-shaped, one-dimensional nanomorphology. Halloysite-kaolinite is the two-phase version of the adsorbent material. The strong adsorption capacity of halloysite for Ce3+ is demonstrated by research findings. Halloysite adsorbs Ce3+ using the monolayer physical adsorption model and the pseudo-second-order adsorption kinetic equation.
{"title":"Adsorption of Ce3+ ions using a one-dimensional nanomaterial with natural halloysite-kaolinite dual components","authors":"Thao Le Thi Phuong, Thoa Nguyen Thi Kim, Duyen Le Thi","doi":"10.22161/ijaers.1011.4","DOIUrl":"https://doi.org/10.22161/ijaers.1011.4","url":null,"abstract":"Rare earth elements are widely used in many technological domains, including reactants, alloying elements, catalysts, batteries, superconductors, etc., because of their unique electro-optical properties. Recovery and separation of rare earth elements are particularly crucial due to the steadily rising demand, as they can enhance scarce resources and reduce radiation-related waste disposal harm. Reports about the harmful effects of rare earth elements on microbes, plants, and animals have become increasingly common in recent years. More dangerously, residues from rare earth elements can build up in the human body through ingestion or digestion in the food chain. Finding a practical and affordable way to use rare earth elements or remove them from our surroundings is therefore essential. To extract these elements, halloysite is processed using a straightforward chemical procedure to produce rare earth metal ion adsorbent materials. The Halloysite that has been processed has a rod-shaped, one-dimensional nanomorphology. Halloysite-kaolinite is the two-phase version of the adsorbent material. The strong adsorption capacity of halloysite for Ce3+ is demonstrated by research findings. Halloysite adsorbs Ce3+ using the monolayer physical adsorption model and the pseudo-second-order adsorption kinetic equation.","PeriodicalId":13758,"journal":{"name":"International Journal of Advanced Engineering Research and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135758585","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}
Jourge Shovon Biswas, D. Hong, Riyadzh Mahmudh, Janiefer Jabbar Jesha, Taha Omar Yaaqob Alssarhi
Circular economy is a new economic operation mode that emphasizes symbiosis and synergism the formation of an ecological network of resource recycling is its fundamental feature. The article takes the development of ship breaking industry in Sitakunda, Chattogram Division, Bangladesh as a case This paper analyzes on the evolution process and the micro operation law of the circular economy industrial chain, probes into the mechanism of the industrial chain coupling, and advances some countermeasures for promoting the development of the circular economy industrial chain.
{"title":"Research on the Coupling Mechanism of Industrial Chain based on Circular Economy","authors":"Jourge Shovon Biswas, D. Hong, Riyadzh Mahmudh, Janiefer Jabbar Jesha, Taha Omar Yaaqob Alssarhi","doi":"10.22161/ijaers.102.14","DOIUrl":"https://doi.org/10.22161/ijaers.102.14","url":null,"abstract":"Circular economy is a new economic operation mode that emphasizes symbiosis and synergism the formation of an ecological network of resource recycling is its fundamental feature. The article takes the development of ship breaking industry in Sitakunda, Chattogram Division, Bangladesh as a case This paper analyzes on the evolution process and the micro operation law of the circular economy industrial chain, probes into the mechanism of the industrial chain coupling, and advances some countermeasures for promoting the development of the circular economy industrial chain.","PeriodicalId":13758,"journal":{"name":"International Journal of Advanced Engineering Research and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75348881","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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