Pub Date : 2022-08-31DOI: 10.22201/icat.24486736e.2022.20.4.1324
T. Setianingsih, B. Susilo, Siti Mutrofin, B. Ismuyanto, Andreas Novan Endaryana, Yoandra Nadya Yoniansyah
Plant biomass is a potential lignocellulose material for synthesis of carbon nano structure. Its characteristics as adsorbent and its size particle make it good additive for liquid fertilizer. In this research, we study influence of sequential different pressure pyrolysis methods (hydrothermal–microwave method and reflux–microwave method) toward characteristics of carbon nanostructure from sugarcane leaf biomass. Each reflux and hydrothermal method was adjusted at 200oC, then followed by microwave at 800W. Characterization showed that the hydrothermal - microwave method using X-ray diffraction indicates diffractogram patterns of both carbon nanostructure and cellulose. SEM micrographs show sphere and block shapes. FTIR spectra indicates different concentration of oxy surface functional groups. UV spectra of the dispersed product in water indicates existence of aromatics C=C groups. The hydrothermal - microwave method resulted the product inwhich lower crystalinity index of cellulose, smaller particles, lower concentration of oxy surface groups than the reflux - microwave one. Correlation of chemical properties (aromaticity and fraction of polar groups) was more linier than of physical - chemical properties (indexe of cellulose crystalinity and fraction of polar groups). The stability of colloid was indicated by dispersing technique in order of sonication < blending < blending - sonication.
{"title":"Influence of sequential pyrolisis methods on the properties of the carbon nanostructure (CNS) from sugarcane leaf biomass","authors":"T. Setianingsih, B. Susilo, Siti Mutrofin, B. Ismuyanto, Andreas Novan Endaryana, Yoandra Nadya Yoniansyah","doi":"10.22201/icat.24486736e.2022.20.4.1324","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2022.20.4.1324","url":null,"abstract":"Plant biomass is a potential lignocellulose material for synthesis of carbon nano structure. Its characteristics as adsorbent and its size particle make it good additive for liquid fertilizer. In this research, we study influence of sequential different pressure pyrolysis methods (hydrothermal–microwave method and reflux–microwave method) toward characteristics of carbon nanostructure from sugarcane leaf biomass. Each reflux and hydrothermal method was adjusted at 200oC, then followed by microwave at 800W. Characterization showed that the hydrothermal - microwave method using X-ray diffraction indicates diffractogram patterns of both carbon nanostructure and cellulose. SEM micrographs show sphere and block shapes. FTIR spectra indicates different concentration of oxy surface functional groups. UV spectra of the dispersed product in water indicates existence of aromatics C=C groups. The hydrothermal - microwave method resulted the product inwhich lower crystalinity index of cellulose, smaller particles, lower concentration of oxy surface groups than the reflux - microwave one. Correlation of chemical properties (aromaticity and fraction of polar groups) was more linier than of physical - chemical properties (indexe of cellulose crystalinity and fraction of polar groups). The stability of colloid was indicated by dispersing technique in order of sonication < blending < blending - sonication.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46909823","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 : 2022-08-31DOI: 10.22201/icat.24486736e.2022.20.4.1384
Edgar Leonel Gonzalez Gonzalez, Ismael Ruíz Fraga, Lina Sofía Palacio, Mildred Yazmin Chávez Cárdenas, Diana Molina Vélez, Concepción García Morales, Rosa Ivonne Hernández Montes, Vesta L. Richardson López Collada
The aim of this study was to evaluate the design and implementation of the Information System for Cervical Cancer Detection Program in Women in the Institute for Social Security and Services for State Workers. We performed a retrospective study applying the framework and tools for Performance Routine Information System Management (PRISM). A sample of 38 subjects was interviewed in 13 health facilities. The information system’s evaluation showed an overall performance of 73.7% at the beginning of 2017. The improvement between versions was mainly observed in the quality of the data (64.6% vs 72.5%), while the use of the information was very similar (78.6% vs 78.9%). We concluded that this information system provides good information to follow-up and control of its beneficiary population. However, there is an opportunity to improve health staff training, also new indicators for health outcomes are required.
本研究的目的是评估社会保障和国家工作人员服务研究所妇女宫颈癌检测方案信息系统的设计和实施情况。我们应用绩效常规信息系统管理(PRISM)的框架和工具进行了回顾性研究。在13个卫生机构对38名受试者进行了访谈。2017年初，信息系统评价总体绩效为73.7%。版本之间的改进主要体现在数据质量上(64.6% vs 72.5%)，而信息的使用非常相似(78.6% vs 78.9%)。我们的结论是，该信息系统为跟踪和控制其受益人口提供了良好的信息。但是，有机会改进对保健工作人员的培训，而且需要制定新的保健结果指标。
{"title":"Information System Evaluation for Cervical Cancer Detection Program in Mexican Women","authors":"Edgar Leonel Gonzalez Gonzalez, Ismael Ruíz Fraga, Lina Sofía Palacio, Mildred Yazmin Chávez Cárdenas, Diana Molina Vélez, Concepción García Morales, Rosa Ivonne Hernández Montes, Vesta L. Richardson López Collada","doi":"10.22201/icat.24486736e.2022.20.4.1384","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2022.20.4.1384","url":null,"abstract":"The aim of this study was to evaluate the design and implementation of the Information System for Cervical Cancer Detection Program in Women in the Institute for Social Security and Services for State Workers. We performed a retrospective study applying the framework and tools for Performance Routine Information System Management (PRISM). A sample of 38 subjects was interviewed in 13 health facilities. The information system’s evaluation showed an overall performance of 73.7% at the beginning of 2017. The improvement between versions was mainly observed in the quality of the data (64.6% vs 72.5%), while the use of the information was very similar (78.6% vs 78.9%). We concluded that this information system provides good information to follow-up and control of its beneficiary population. However, there is an opportunity to improve health staff training, also new indicators for health outcomes are required.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42301762","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 : 2022-08-31DOI: 10.22201/icat.24486736e.2022.20.4.1328
L. S. Aguilera, Eustáquio de Souza Baêta Júnior, R. Marçal, L. Brandão, M. H. P. da Silva, Ronaldo Sergio De Baisi, A. B. S. Figueiredo
A novel freezing unit was developed for use in ceramic processing by the freeze casting technique. This step is crucial, since the macrostructure promoted by this technique is formed during freezing. Several authors present basic information about the apparatus used in the freezing step, but there are no studies that describe a complete unit as we do in this work and there is no commercial equipment for this purpose. The components of the freezing unit were selected according to function, suitability to project, cost and market availability. Advanced ceramic samples of ZnFe2O4, MnFe2O4, CoFe2O4, NiFe2O4, SiO2, Al2O3 and metallic Cu were produced using the freezing unit and the results of typical macrostructure and porosity analysis validated the chosen setup.
{"title":"A homemade freezing unit for ice-templating","authors":"L. S. Aguilera, Eustáquio de Souza Baêta Júnior, R. Marçal, L. Brandão, M. H. P. da Silva, Ronaldo Sergio De Baisi, A. B. S. Figueiredo","doi":"10.22201/icat.24486736e.2022.20.4.1328","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2022.20.4.1328","url":null,"abstract":"A novel freezing unit was developed for use in ceramic processing by the freeze casting technique. This step is crucial, since the macrostructure promoted by this technique is formed during freezing. Several authors present basic information about the apparatus used in the freezing step, but there are no studies that describe a complete unit as we do in this work and there is no commercial equipment for this purpose. The components of the freezing unit were selected according to function, suitability to project, cost and market availability. Advanced ceramic samples of ZnFe2O4, MnFe2O4, CoFe2O4, NiFe2O4, SiO2, Al2O3 and metallic Cu were produced using the freezing unit and the results of typical macrostructure and porosity analysis validated the chosen setup.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41912244","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 : 2022-08-31DOI: 10.22201/icat.24486736e.2022.20.3.1405
L. Rivera-Rios, I. Perez-Lopez, J. T. Elizalde-Galindo, J. R. Farias-Mancilla, P. Mani-Gonzalez
The use of materials capable of controlling the threshold temperature required in hyperthermia, as well as meeting desired requirements in biomedical applications is still a challenge. In the present study, strontium doped calcium lanthanum manganites La0.7Ca0.3-xSrxMnO3 (x=0, 0.1, 0.15 and 0.2) were synthesized by co-precipitation method. Vibrating sample magnetometry (VSM) was used to study the effect of change Ca-Sr ratio on magnetic properties. The Curie temperature (Tc) increases from 272 to 315 K as the concentration increases from x=0 to x=0.2 respectively. Hence the strontium amount plays an important role in achieving the desired Tc . X-ray diffraction (XRD) was used to identify rhombohedral structure and scanning electronic microscopy (SEM) was used to characterize the cubic morphology and around 800 nm as particles size.
{"title":"Doping lanthanum manganites particles with strontium-calcium for application in hyperthermia","authors":"L. Rivera-Rios, I. Perez-Lopez, J. T. Elizalde-Galindo, J. R. Farias-Mancilla, P. Mani-Gonzalez","doi":"10.22201/icat.24486736e.2022.20.3.1405","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2022.20.3.1405","url":null,"abstract":"The use of materials capable of controlling the threshold temperature required in hyperthermia, as well as meeting desired requirements in biomedical applications is still a challenge. In the present study, strontium doped calcium lanthanum manganites La0.7Ca0.3-xSrxMnO3 (x=0, 0.1, 0.15 and 0.2) were synthesized by co-precipitation method. Vibrating sample magnetometry (VSM) was used to study the effect of change Ca-Sr ratio on magnetic properties. The Curie temperature (Tc) increases from 272 to 315 K as the concentration increases from x=0 to x=0.2 respectively. Hence the strontium amount plays an important role in achieving the desired Tc . X-ray diffraction (XRD) was used to identify rhombohedral structure and scanning electronic microscopy (SEM) was used to characterize the cubic morphology and around 800 nm as particles size.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49342872","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 : 2022-08-31DOI: 10.22201/icat.24486736e.2022.20.4.1330
Oscar Javier Herrera Ochoa, Nicolas Arrieta Camacho, Vianey Lizeth Jerez Amador, Geraldine Camacho Perez, Ivan Dario Romero
In this article, a model is established for the planning of the weekly distribution of refreshments in a company that produces 6 types of beverages in 3 Production Centers, with the potential use of 3 Distribution Centers and supplying 22 Consumer Centers located in Bogota. Due to the impact of transportation costs on the company profits, it is necessary to determine the optimal planning of the allocation of sources to destinations in the nodal network of the system and its subsequent routing with two types of vehicles. Therefore, a two-phase model is proposed. In the first, the initial optimal assignments are established by comparing two techniques; one based on the Open Transshipment Problem (OTP) and the other on the Capacitated Transshipment Problem (CTP), which determine the trips to be made from production centers to consumer centers using distribution centers as intermediaries. This comparison allowed to analyze its efficiency to choose the model with the lowest cost and number of trips. In the second phase, routing was performed on routes that do not use the full capacity of the vehicles. The routes were established through the Travelling Salesman Problem (TSP). As a result, a comprehensive model was obtained to carry out the planning of the product distribution, obtaining in Phase II the use of the OTM model, which presented 14% less distance; 2.6% less time and 0.28% less than the total cost compared to the CTP model. In Phase II 5 routes were obtained, of which Distribution Center 2 covers 59% of customers.
{"title":"Transshipment and Routing Model for Multi-Product Planning and Distribution at a Refreshment Company in Bogota, Colombia","authors":"Oscar Javier Herrera Ochoa, Nicolas Arrieta Camacho, Vianey Lizeth Jerez Amador, Geraldine Camacho Perez, Ivan Dario Romero","doi":"10.22201/icat.24486736e.2022.20.4.1330","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2022.20.4.1330","url":null,"abstract":"In this article, a model is established for the planning of the weekly distribution of refreshments in a company that produces 6 types of beverages in 3 Production Centers, with the potential use of 3 Distribution Centers and supplying 22 Consumer Centers located in Bogota. Due to the impact of transportation costs on the company profits, it is necessary to determine the optimal planning of the allocation of sources to destinations in the nodal network of the system and its subsequent routing with two types of vehicles. Therefore, a two-phase model is proposed. In the first, the initial optimal assignments are established by comparing two techniques; one based on the Open Transshipment Problem (OTP) and the other on the Capacitated Transshipment Problem (CTP), which determine the trips to be made from production centers to consumer centers using distribution centers as intermediaries. This comparison allowed to analyze its efficiency to choose the model with the lowest cost and number of trips. In the second phase, routing was performed on routes that do not use the full capacity of the vehicles. The routes were established through the Travelling Salesman Problem (TSP). As a result, a comprehensive model was obtained to carry out the planning of the product distribution, obtaining in Phase II the use of the OTM model, which presented 14% less distance; 2.6% less time and 0.28% less than the total cost compared to the CTP model. In Phase II 5 routes were obtained, of which Distribution Center 2 covers 59% of customers.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42423545","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 : 2022-08-31DOI: 10.22201/icat.24486736e.2022.20.4.1327
L. S. Aguilera, Manoel Antônio Da Fonseca Costa Filho, Celio Albano Costa Neto, J. D. de Campos
This work presents ANOVA and Tukey’s statistic tests that were carried out in Knoop microhardness results of boron carbide sintered samples. Three samples, A, B and C, of different processing conditions were tested and statistical analysis showed that microhardness results are strongly influenced by porosity and chemical composition, mainly due to presence of C(2H) and WB2.5 contaminant phases. Those phases promoted higher densification in A and B samples and it was found that A ≈ B > C is the relation between the microhardness results of the samples, while A ≈ B < C is the porosity ratio of the samples. Furthermore, this work aims to apply a statistical tool to evaluate the microhardness results performed on advanced ceramics and, using these results, to control parameters in the sintering process, showing that a deeper statistical analysis is necessary for the interpretation and validation of the results merit.
{"title":"Analysis of the Influence of Contaminants on Microhardness Sintered Boron Carbide Samples","authors":"L. S. Aguilera, Manoel Antônio Da Fonseca Costa Filho, Celio Albano Costa Neto, J. D. de Campos","doi":"10.22201/icat.24486736e.2022.20.4.1327","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2022.20.4.1327","url":null,"abstract":"This work presents ANOVA and Tukey’s statistic tests that were carried out in Knoop microhardness results of boron carbide sintered samples. Three samples, A, B and C, of different processing conditions were tested and statistical analysis showed that microhardness results are strongly influenced by porosity and chemical composition, mainly due to presence of C(2H) and WB2.5 contaminant phases. Those phases promoted higher densification in A and B samples and it was found that A ≈ B > C is the relation between the microhardness results of the samples, while A ≈ B < C is the porosity ratio of the samples. Furthermore, this work aims to apply a statistical tool to evaluate the microhardness results performed on advanced ceramics and, using these results, to control parameters in the sintering process, showing that a deeper statistical analysis is necessary for the interpretation and validation of the results merit.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48145459","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 : 2022-07-01DOI: 10.22201/icat.24486736e.2022.20.3.932
M. A. Carrasco-Aguilar, C. Sánchez-López, F. E. Morales-Lopez
This paper proposes a current-controlled grounded memristor emulator circuit based on single four-quadrant analog multiplier, a resistor and a capacitor. The behavioral model of the proposed emulator circuit is analyzed, highlighting its characteristics. Experimental results are given to investigate its ability for different operating frequencies and they are in accordance with theoretical analysis and simulation results. By using a divider circuit, the memristance variation in the time domain is obtained. It is observed that the pinched hysteresis loop at high frequency loses symmetry due in part to the shift that introduces a multiplication of sinusoidal signals.
{"title":"Current-controlled grounded memristor emulator circuit based on analog multiplier","authors":"M. A. Carrasco-Aguilar, C. Sánchez-López, F. E. Morales-Lopez","doi":"10.22201/icat.24486736e.2022.20.3.932","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2022.20.3.932","url":null,"abstract":"This paper proposes a current-controlled grounded memristor emulator circuit based on single four-quadrant analog multiplier, a resistor and a capacitor. The behavioral model of the proposed emulator circuit is analyzed, highlighting its characteristics. Experimental results are given to investigate its ability for different operating frequencies and they are in accordance with theoretical analysis and simulation results. By using a divider circuit, the memristance variation in the time domain is obtained. It is observed that the pinched hysteresis loop at high frequency loses symmetry due in part to the shift that introduces a multiplication of sinusoidal signals.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43476106","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 : 2022-07-01DOI: 10.22201/icat.24486736e.2022.20.3.1789
L. Romero-Resendiz, M. Hernández, J. Cabrera, S. Elizalde, V. Amigó-Borrás, I. A. Figueroa, A. Covelo, G. Gonzalez
Anti-corrosion susceptibility is one of the top criteria for selecting metallic materials for several industrial applications. This work studies the corrosion performance on an Al-7075 alloy obtained by Repetitive Corrugation and Straightening (RCS). This processing method generated a microstructure formed by randomly distributed micro-, submicro-, and nano- metric grain sizes. The samples exhibited a drop in corrosion resistance for a longer duration in the electrolyte and higher deformation. However, the samples processed by RCS showed better electrochemical stability in comparison with the non-deformed condition. The improvement of electrochemical stability could be associated with the particular microstructure generated during the RCS process.
{"title":"Repetitive corrugation and straightening effect on the microstructure, crystallographic texture and electrochemical behavior for the Al-7075 alloy","authors":"L. Romero-Resendiz, M. Hernández, J. Cabrera, S. Elizalde, V. Amigó-Borrás, I. A. Figueroa, A. Covelo, G. Gonzalez","doi":"10.22201/icat.24486736e.2022.20.3.1789","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2022.20.3.1789","url":null,"abstract":"Anti-corrosion susceptibility is one of the top criteria for selecting metallic materials for several industrial applications. This work studies the corrosion performance on an Al-7075 alloy obtained by Repetitive Corrugation and Straightening (RCS). This processing method generated a microstructure formed by randomly distributed micro-, submicro-, and nano- metric grain sizes. The samples exhibited a drop in corrosion resistance for a longer duration in the electrolyte and higher deformation. However, the samples processed by RCS showed better electrochemical stability in comparison with the non-deformed condition. The improvement of electrochemical stability could be associated with the particular microstructure generated during the RCS process.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44950511","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 : 2022-07-01DOI: 10.22201/icat.24486736e.2022.20.3.1790
J. J. Vaca-González, Juliana I. P. Cantillo Bermúdez, Liliana Andrea Rodríguez Sarmiento, Aldemar Fonseca Velásquez
This review article elucidates the application and viability of electromagnetic fields as therapy and rehabilitation method for the treatment of musculoskeletal pathologies. All studies were found in different databases such as Science Direct, Scielo, IEEE, ProQuest, Pubmed, among others, where the search for information contemplated a period of 5 years (2016-2020). Results evidenced that electromagnetic fields used to treat musculoskeletal conditions showed positive results and improvements in reducing chronic and acute pain in different musculoskeletal pathologies such as osteoarthritis, osteoporosis, nonunions, fractures, fibromyalgia, muscular system injuries, among others. It was possible to evidence that one of the most used magnetic treatments were pulsed electromagnetic fields, which have been implemented to treat joint, muscle and nervous diseases. Additionally, several devices to generate the magnetic stimulation have been designed with a therapeutic and rehabilitation approach, which elucidate the progress in the implementation and acceptance of this type of therapeutic alternatives to treat musculoskeletal conditions. Finally, magnetic stimulation has been also implemented to enhance biomaterials function, evidencing that scaffolds stimulated with electromagnetic fields improve musculoskeletal tissue regeneration.
{"title":"Electromagnetic fields as a non-invasive alternative therapy for the treatment of musculoskeletal diseases","authors":"J. J. Vaca-González, Juliana I. P. Cantillo Bermúdez, Liliana Andrea Rodríguez Sarmiento, Aldemar Fonseca Velásquez","doi":"10.22201/icat.24486736e.2022.20.3.1790","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2022.20.3.1790","url":null,"abstract":"This review article elucidates the application and viability of electromagnetic fields as therapy and rehabilitation method for the treatment of musculoskeletal pathologies. All studies were found in different databases such as Science Direct, Scielo, IEEE, ProQuest, Pubmed, among others, where the search for information contemplated a period of 5 years (2016-2020). Results evidenced that electromagnetic fields used to treat musculoskeletal conditions showed positive results and improvements in reducing chronic and acute pain in different musculoskeletal pathologies such as osteoarthritis, osteoporosis, nonunions, fractures, fibromyalgia, muscular system injuries, among others. It was possible to evidence that one of the most used magnetic treatments were pulsed electromagnetic fields, which have been implemented to treat joint, muscle and nervous diseases. Additionally, several devices to generate the magnetic stimulation have been designed with a therapeutic and rehabilitation approach, which elucidate the progress in the implementation and acceptance of this type of therapeutic alternatives to treat musculoskeletal conditions. Finally, magnetic stimulation has been also implemented to enhance biomaterials function, evidencing that scaffolds stimulated with electromagnetic fields improve musculoskeletal tissue regeneration.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46694556","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 : 2022-07-01DOI: 10.22201/icat.24486736e.2022.20.3.780
Ashish Pathak, R. Sankarasubramanian
The present work describes the electronic structure, magnetic and elastic properties of ordered Co2MSi (M = Cr, Mn, Fe) Heusler alloys in L21 structure calculated using density functional theory within generalized gradient approximation. The calculated band structures, density of states and magnetic moments have been discussed. The magnetic moment values obtained in present study follow the Slater-Pauling rule. A small band gap in the minority band structure at the Fermi level suggests half-metallicity. Hundred percentage spin polarization in this ordered structure implies that these materials possess ferromagnetism. All the three materials satisfy stability criteria in terms of elastic constants and are predicted to have ductile behaviour based on the ratio of shear to bulk modulus.
{"title":"First Principles Calculations of Co2MSi (M=Cr, Mn, Fe) Heusler Alloys","authors":"Ashish Pathak, R. Sankarasubramanian","doi":"10.22201/icat.24486736e.2022.20.3.780","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2022.20.3.780","url":null,"abstract":"The present work describes the electronic structure, magnetic and elastic properties of ordered Co2MSi (M = Cr, Mn, Fe) Heusler alloys in L21 structure calculated using density functional theory within generalized gradient approximation. The calculated band structures, density of states and magnetic moments have been discussed. The magnetic moment values obtained in present study follow the Slater-Pauling rule. A small band gap in the minority band structure at the Fermi level suggests half-metallicity. Hundred percentage spin polarization in this ordered structure implies that these materials possess ferromagnetism. All the three materials satisfy stability criteria in terms of elastic constants and are predicted to have ductile behaviour based on the ratio of shear to bulk modulus.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45707129","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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