Pub Date : 2023-04-27DOI: 10.22201/icat.24486736e.2023.21.2.1728
T. Alvarenga
The objective of this research is to verify the relationship between institutional pressures, green logistics activities and impacts on logistics performance. A survey of 56 logistics service providers was conducted. In relation to the data acquired, the return of 138 questionnaires answered by the middle/tactical managers of the 56 logistics service providers in Brazil was received. Institutional Pressures were the antecedents capable of explaining the corresponding variation in the Green Logistics construct (green packaging) in R2 = 0.3750, Green Logistics (green transport) in R2 = 0.9909 and Green Logistics (green warehousing and buildings) in R2 = 0.0389. Similarly, all Green Logistics constructs were able to explain the variation corresponding to a value observed in R2 = 0.5442 referring to Efficiency Perfor-mance (costs). The results demonstrate the influence of Institutional Pressures on Green Logistics activities as well as the impact of Green Logistics on Efficiency Performance (costs).
{"title":"Institutional pressures, green logistics activities and efficiency performance: a survey with logistics service providers in Brazil","authors":"T. Alvarenga","doi":"10.22201/icat.24486736e.2023.21.2.1728","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.2.1728","url":null,"abstract":"The objective of this research is to verify the relationship between institutional pressures, green logistics activities and impacts on logistics performance. A survey of 56 logistics service providers was conducted. In relation to the data acquired, the return of 138 questionnaires answered by the middle/tactical managers of the 56 logistics service providers in Brazil was received. Institutional Pressures were the antecedents capable of explaining the corresponding variation in the Green Logistics construct (green packaging) in R2 = 0.3750, Green Logistics (green transport) in R2 = 0.9909 and Green Logistics (green warehousing and buildings) in R2 = 0.0389. Similarly, all Green Logistics constructs were able to explain the variation corresponding to a value observed in R2 = 0.5442 referring to Efficiency Perfor-mance (costs). The results demonstrate the influence of Institutional Pressures on Green Logistics activities as well as the impact of Green Logistics on Efficiency Performance (costs).","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43719989","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 : 2023-04-27DOI: 10.22201/icat.24486736e.2023.21.2.1742
Majeed Mattar Ramal, Huda Sulaiman Ghalib
Heavy Metals (HMs) concentrations in a sediment sample from Habbaniyah Lake (HL), Iraq (Cr, Cd, Ni, Fe, Co, Zn, Pb, and Cu). 33 locations have been selected in the field of study from October 2020 to April 2021 to evaluate the contamination of HMs in sediments by using pollution load index (PLI), contamination factor (CF), Contamination degree (CD), and geo-accumulation index (I-geo). Atomic Absorption Spectrometer AAS was used to determine heavy metal concentrations (USA Phoenix-986). The following are the average concentrations: 2152.97 mg/kg for Fe, 47.35 mg/kg for Pb, 25.18 mg/kg for Cr, 18.00 mg/kg for Ni, 10.60 mg/kg for Co, 9.57 mg/kg for Zn, 4.53 mg/kg for Cu and 3.53 mg/kg for Cd during the research time. The average concentration of Pb, Ni, Fe, and Cd surpassed the USEPA recommendation. Cd is responsible for extremely high contamination; Pb is responsible for moderate pollution and severe contamination at some places based on the contamination factor (CF). According to contamination degree (CD), The Lake is classified as significant pollution degree and very pollution degree in some sites. Results indicated that HL is not contaminated with HMs according to geo-accumulation index and PLI for all sample locations during the study period. The lake is unpolluted by Fe, Cr, Co, Ni, Zn, and Cu according to contamination factor (CF), geo-accumulation index (I-geo), pollution load index (PLI), and Contamination degree (CD).
{"title":"Heavy Metals Assessment in Sediments Beds of Habbaniyah Lake, Iraq","authors":"Majeed Mattar Ramal, Huda Sulaiman Ghalib","doi":"10.22201/icat.24486736e.2023.21.2.1742","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.2.1742","url":null,"abstract":"Heavy Metals (HMs) concentrations in a sediment sample from Habbaniyah Lake (HL), Iraq (Cr, Cd, Ni, Fe, Co, Zn, Pb, and Cu). 33 locations have been selected in the field of study from October 2020 to April 2021 to evaluate the contamination of HMs in sediments by using pollution load index (PLI), contamination factor (CF), Contamination degree (CD), and geo-accumulation index (I-geo). Atomic Absorption Spectrometer AAS was used to determine heavy metal concentrations (USA Phoenix-986). The following are the average concentrations: 2152.97 mg/kg for Fe, 47.35 mg/kg for Pb, 25.18 mg/kg for Cr, 18.00 mg/kg for Ni, 10.60 mg/kg for Co, 9.57 mg/kg for Zn, 4.53 mg/kg for Cu and 3.53 mg/kg for Cd during the research time. The average concentration of Pb, Ni, Fe, and Cd surpassed the USEPA recommendation. Cd is responsible for extremely high contamination; Pb is responsible for moderate pollution and severe contamination at some places based on the contamination factor (CF). According to contamination degree (CD), The Lake is classified as significant pollution degree and very pollution degree in some sites. Results indicated that HL is not contaminated with HMs according to geo-accumulation index and PLI for all sample locations during the study period. The lake is unpolluted by Fe, Cr, Co, Ni, Zn, and Cu according to contamination factor (CF), geo-accumulation index (I-geo), pollution load index (PLI), and Contamination degree (CD).","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45289391","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 : 2023-04-27DOI: 10.22201/icat.24486736e.2023.21.2.1618
Sakthi Selvarasu
Aluminium alloy related to Metal Matrix Composites (AMMC’s) have been achieve enormous comprehensive acknowledgment for aerospace and structural applications, due to its excellent corrosion resistant, good wear resistant, high strength and light weight. In this paper, the experimental study deals with investigation influence of reinforcement (Magnesium oxide and Silicon Carbide) particles on various mechanical properties of aluminium alloy (Al 6061). AMMC was fabricated by stir casting method. The exsitu method was used to fabricate because of its less complexity. The MMC specimens with different weight percentage of reinforcement particles such as 3%, 6% and 9% were prepared. After the fabrication, the ingots were machined for preparation of test samples. The tensile, compression, Impact and hardness test were taken to study the mechanical properties and effect of varying weight percentage of reinforcements. As the outcome, the tensile and compression strength were progressively increase with addition of magnesium oxide and silicon carbide.
{"title":"Influence of MgO & SiC on Mechanical and Wear Characteristics of AA6061 Hybrid Matrix Composites Synthesized by Stir Casting","authors":"Sakthi Selvarasu","doi":"10.22201/icat.24486736e.2023.21.2.1618","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.2.1618","url":null,"abstract":"Aluminium alloy related to Metal Matrix Composites (AMMC’s) have been achieve enormous comprehensive acknowledgment for aerospace and structural applications, due to its excellent corrosion resistant, good wear resistant, high strength and light weight. In this paper, the experimental study deals with investigation influence of reinforcement (Magnesium oxide and Silicon Carbide) particles on various mechanical properties of aluminium alloy (Al 6061). AMMC was fabricated by stir casting method. The exsitu method was used to fabricate because of its less complexity. The MMC specimens with different weight percentage of reinforcement particles such as 3%, 6% and 9% were prepared. After the fabrication, the ingots were machined for preparation of test samples. The tensile, compression, Impact and hardness test were taken to study the mechanical properties and effect of varying weight percentage of reinforcements. As the outcome, the tensile and compression strength were progressively increase with addition of magnesium oxide and silicon carbide.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47857304","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 : 2023-04-27DOI: 10.22201/icat.24486736e.2023.21.2.1691
E. Tututi, Ulises Uriostegui
A modified master-slave scheme to look for synchronization, based on a general combination of elastic and dissipative couplings, is presented. We focus on solutions according the scheme presented, illustrating the method we use, by employing the van der Pol and Duffing oscillators and analyzing three different ways of coupling. We find synchronization in the oscillators.
{"title":"Master-slave synchronization in the van der Pol and Duffing systems via elastic, dissipative and a combination of both couplings","authors":"E. Tututi, Ulises Uriostegui","doi":"10.22201/icat.24486736e.2023.21.2.1691","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.2.1691","url":null,"abstract":"A modified master-slave scheme to look for synchronization, based on a general combination of elastic and dissipative couplings, is presented. We focus on solutions according the scheme presented, illustrating the method we use, by employing the van der Pol and Duffing oscillators and analyzing three different ways of coupling. We find synchronization in the oscillators.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41253940","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 : 2023-02-27DOI: 10.22201/icat.24486736e.2023.21.1.2184
E. Avila-Soler, L. W. Rodríguez-Alvarado, J. Loyo-Quijada, M. Lopez-Ontiveros, S. M. García-Carranco
The investigation determined the location to build a graphite commercial warehouse (GCW), derived from the fact that the only place of production of the input is the state of Sonora, the above complicates satisfying the internal and external market of consumers due to the times and the distances. The methodology applied to determine the location for the construction of the warehouse was by means of a macro and micro analysis of location, both contemplate the diagnosis of variables through the methods of critical factors and center of gravity. The results allowed obtaining the order of alternatives for the GCW are Querétaro, followed by San Luis Potosí, Guanajuato, Tamaulipas, Aguascalientes, and Durango. The conclusion is that the GCW must be built in the location of georeferenced coordinates (20 ° 49´40.32 "N, 100 ° 18´32.38" W) or its equivalent (20.827, -100.308), specifically in the municipality of Marquez for have optimal communication channels and be a strategic point for the distribution of the product.
调查确定了建造石墨商业仓库(GCW)的地点，这是因为投入品的唯一生产地是索诺拉州，由于时间和距离的原因，上述情况使得满足消费者的内外市场变得复杂。确定仓库建设地点的方法是通过对地点的宏观和微观分析，都考虑通过关键因素和重心方法对变量进行诊断。结果表明，GCW的替代方案依次为queracimazaro，其次是San Luis Potosí， Guanajuato, Tamaulipas, Aguascalientes和Durango。结论是，GCW必须建在地理参考坐标的位置(20°49´40.32”N, 100°18´32.38”W)或其等效位置(20.827，-100.308)，特别是在马尔克斯市，拥有最佳的通信渠道，并成为产品分销的战略点。
{"title":"Strategic location for the construction of a graphite trading warehouse in Mexico","authors":"E. Avila-Soler, L. W. Rodríguez-Alvarado, J. Loyo-Quijada, M. Lopez-Ontiveros, S. M. García-Carranco","doi":"10.22201/icat.24486736e.2023.21.1.2184","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.1.2184","url":null,"abstract":"The investigation determined the location to build a graphite commercial warehouse (GCW), derived from the fact that the only place of production of the input is the state of Sonora, the above complicates satisfying the internal and external market of consumers due to the times and the distances. The methodology applied to determine the location for the construction of the warehouse was by means of a macro and micro analysis of location, both contemplate the diagnosis of variables through the methods of critical factors and center of gravity. The results allowed obtaining the order of alternatives for the GCW are Querétaro, followed by San Luis Potosí, Guanajuato, Tamaulipas, Aguascalientes, and Durango. The conclusion is that the GCW must be built in the location of georeferenced coordinates (20 ° 49´40.32 \"N, 100 ° 18´32.38\" W) or its equivalent (20.827, -100.308), specifically in the municipality of Marquez for have optimal communication channels and be a strategic point for the distribution of the product.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43326809","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 : 2023-02-27DOI: 10.22201/icat.24486736e.2023.21.1.1423
M. Obeidat, Wiam Ababneh, Nader Al Theeb
Two multi-criteria decision making approaches were implemented in this paper for selecting a U.S. university considering the industrial engineering doctorate degree as a case study. The Preference Selection Index (PSI) and the Analytical Hierarchy Process (AHP) were these approaches. A total of 37 universities and 20 attributes were considered. The attributes were related to the university reputation, location, financial, and ease of admission. In this paper, the PSI model was initially constructed and its results were adopted in the AHP model. Data of this paper were obtained from the US News and World Report, Times Higher Education (THE) and other well-known organizations. Results proved that the PSI approach could be used in decisions with large number of alternatives and attributes, and the PSI model was able in making the AHP model requirements easier, by reducing the criteria and alternatives. In both the PSI and the AHP models, the university reputation had the highest preferences of students, followed by the ease of admission, financial and then location. Sensitivity analyses for the PSI and AHP models were performed to evaluate the accuracy of the results. Results of this study could be applied in other students’ disciplines for finding a suitable university.
{"title":"The Preference Selection Index Performance in Large Alternatives’ Decisions to Support the AHP: The Case of a University Selection","authors":"M. Obeidat, Wiam Ababneh, Nader Al Theeb","doi":"10.22201/icat.24486736e.2023.21.1.1423","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.1.1423","url":null,"abstract":"Two multi-criteria decision making approaches were implemented in this paper for selecting a U.S. university considering the industrial engineering doctorate degree as a case study. The Preference Selection Index (PSI) and the Analytical Hierarchy Process (AHP) were these approaches. A total of 37 universities and 20 attributes were considered. The attributes were related to the university reputation, location, financial, and ease of admission. In this paper, the PSI model was initially constructed and its results were adopted in the AHP model. Data of this paper were obtained from the US News and World Report, Times Higher Education (THE) and other well-known organizations. Results proved that the PSI approach could be used in decisions with large number of alternatives and attributes, and the PSI model was able in making the AHP model requirements easier, by reducing the criteria and alternatives. In both the PSI and the AHP models, the university reputation had the highest preferences of students, followed by the ease of admission, financial and then location. Sensitivity analyses for the PSI and AHP models were performed to evaluate the accuracy of the results. Results of this study could be applied in other students’ disciplines for finding a suitable university.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43179355","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 : 2023-02-27DOI: 10.22201/icat.24486736e.2023.21.1.2183
G. A. Rios-Esparza, E. Segura-Perez
The human resource assignment usually considers the search, qualification, selection, and allocation of human resources commonly based on their experience and professional development into different areas of a company. Rarely, the residence location and other characteristics of the personnel are considered.This paper takes a real case allocation problem from a public university social service program in Mexico City where the assignment process is restarted every six months. The lack of consideration of the personnel physical and functional attributes, led to an inefficient allocation process, increasing desertion of the program. To solve this problem, we propose a new methodology built on hexagonal tessellation capable of allocating personnel based on distance, schedules, and skills, which is later improved using simulation, reducing total travel distance in 585 km, improving matching schedules in 26%, matching skills in 37% and reduced the time dedicated to the allocation process from 5 days to 90 minutes.
{"title":"A Proposal of a simulation-optimization methodology for allocation of agencies with human resources on hexagonal tessellation","authors":"G. A. Rios-Esparza, E. Segura-Perez","doi":"10.22201/icat.24486736e.2023.21.1.2183","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.1.2183","url":null,"abstract":"The human resource assignment usually considers the search, qualification, selection, and allocation of human resources commonly based on their experience and professional development into different areas of a company. Rarely, the residence location and other characteristics of the personnel are considered.This paper takes a real case allocation problem from a public university social service program in Mexico City where the assignment process is restarted every six months. The lack of consideration of the personnel physical and functional attributes, led to an inefficient allocation process, increasing desertion of the program. To solve this problem, we propose a new methodology built on hexagonal tessellation capable of allocating personnel based on distance, schedules, and skills, which is later improved using simulation, reducing total travel distance in 585 km, improving matching schedules in 26%, matching skills in 37% and reduced the time dedicated to the allocation process from 5 days to 90 minutes.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48688337","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 : 2023-02-27DOI: 10.22201/icat.24486736e.2023.21.1.1544
P. Rani, Rajneesh Kumar, Anurag Jain
Heart disease is one of the deadly diseases. Timely detection of the disease can prevent mortality. In this paper, an intelligent system is proposed for the diagnosis of heart disease using clinical parameters at early stages. The system is developed using the Regularized Deep Neural Network model (Reg-DNN). Cleveland heart disease dataset has been used for training the model. Regularization has been achieved by using dropout and L2 regularization. Efficiency of Reg-DNN was evaluated by using hold-out validation method.70% data was used for training the model and 30% data was used for testing the model. Results indicate that Reg-DNN provided better performance than conventional DNN. Regularization has helped to overcome overfitting. Reg-DNN has achieved an accuracy of 94.79%. Results achieved are quite promising as compared to existing systems in the literature. Authors developed a system containing a graphical user interface. So, the system can be easily used by anyone to diagnose heart disease using the clinical parameters.
{"title":"An Intelligent System for Heart Disease Diagnosis using Regularized Deep Neural Network","authors":"P. Rani, Rajneesh Kumar, Anurag Jain","doi":"10.22201/icat.24486736e.2023.21.1.1544","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.1.1544","url":null,"abstract":"Heart disease is one of the deadly diseases. Timely detection of the disease can prevent mortality. In this paper, an intelligent system is proposed for the diagnosis of heart disease using clinical parameters at early stages. The system is developed using the Regularized Deep Neural Network model (Reg-DNN). Cleveland heart disease dataset has been used for training the model. Regularization has been achieved by using dropout and L2 regularization. Efficiency of Reg-DNN was evaluated by using hold-out validation method.70% data was used for training the model and 30% data was used for testing the model. Results indicate that Reg-DNN provided better performance than conventional DNN. Regularization has helped to overcome overfitting. Reg-DNN has achieved an accuracy of 94.79%. Results achieved are quite promising as compared to existing systems in the literature. Authors developed a system containing a graphical user interface. So, the system can be easily used by anyone to diagnose heart disease using the clinical parameters.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42040427","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 : 2023-02-27DOI: 10.22201/icat.24486736e.2023.21.1.2185
Syed Mehmood Ali, S. Ghufran Khalid, Uzma Ali, Kamran Hameed
Sickle cell disease is a group of health disorders that affect hemoglobin in red blood cells. Sickle cell disease causes multiple manifestations and complications, including infections, delayed growth, pain crisis, and multi-organs damage. These complications can disturb the patients' vital signs, including body temperature, heart rate, and oxygen saturation. The decline in hemoglobin level is another indication of sickle cell disease due to abnormal hemoglobin that distorts red blood cells resulting in sickle cell anemia. RBCs, also called erythrocytes, are found in the blood and responsible for carrying oxygen to the body tissues attached to the hemoglobin. Optical microscopy can detect and monitor sickle cell disease, but it requires a blood sample and offline analysis, which is a time-consuming process. There is currently no known technology available to provide non-invasive monitoring solutions for sickle cell disease patients' health. Therefore, a need arises for a non-invasive and continuous monitoring solution to continuously check on sickle cell disease patients, which can be transformed into a wearable monitoring device. The proposed optical wristband consists of optical sensors that provide non-invasive and continuous health status monitoring of sickle cell disease patients using key vital signs and hemoglobin levels. A comparative study was performed among 21 participants and equally divided into three groups (non-anemic, anemic, and sickle cell disease patients). The data was collected from optical sensors, Arduino used as a processor, and continuously monitors the patient's vital signs and hemoglobin levels. Abnormal reading of any parameter alerts the user of any unhealthy status, and the parameter's trend assists the clinician in patient assessment. The body temperature and oxygen saturation levels of the anemic patients were found in the normal ranges, but the heart rate of three patients and hemoglobin of all the participants were found in aberrant ranges. The vital signs and hemoglobin levels of all sickle cell disease patients were beyond the normal ranges and significantly different (p>0.001) than non-anemic and anemic groups. Therefore, these physiological parameters monitoring has clinical importance for sickle cell disease management and early treatment.
{"title":"A Blueprint design of optical-based wristband for non-invasive and continuous health status monitoring of sickle cell disease patients","authors":"Syed Mehmood Ali, S. Ghufran Khalid, Uzma Ali, Kamran Hameed","doi":"10.22201/icat.24486736e.2023.21.1.2185","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.1.2185","url":null,"abstract":"Sickle cell disease is a group of health disorders that affect hemoglobin in red blood cells. Sickle cell disease causes multiple manifestations and complications, including infections, delayed growth, pain crisis, and multi-organs damage. These complications can disturb the patients' vital signs, including body temperature, heart rate, and oxygen saturation. The decline in hemoglobin level is another indication of sickle cell disease due to abnormal hemoglobin that distorts red blood cells resulting in sickle cell anemia. RBCs, also called erythrocytes, are found in the blood and responsible for carrying oxygen to the body tissues attached to the hemoglobin. Optical microscopy can detect and monitor sickle cell disease, but it requires a blood sample and offline analysis, which is a time-consuming process. There is currently no known technology available to provide non-invasive monitoring solutions for sickle cell disease patients' health. Therefore, a need arises for a non-invasive and continuous monitoring solution to continuously check on sickle cell disease patients, which can be transformed into a wearable monitoring device. The proposed optical wristband consists of optical sensors that provide non-invasive and continuous health status monitoring of sickle cell disease patients using key vital signs and hemoglobin levels. A comparative study was performed among 21 participants and equally divided into three groups (non-anemic, anemic, and sickle cell disease patients). The data was collected from optical sensors, Arduino used as a processor, and continuously monitors the patient's vital signs and hemoglobin levels. Abnormal reading of any parameter alerts the user of any unhealthy status, and the parameter's trend assists the clinician in patient assessment. The body temperature and oxygen saturation levels of the anemic patients were found in the normal ranges, but the heart rate of three patients and hemoglobin of all the participants were found in aberrant ranges. The vital signs and hemoglobin levels of all sickle cell disease patients were beyond the normal ranges and significantly different (p>0.001) than non-anemic and anemic groups. Therefore, these physiological parameters monitoring has clinical importance for sickle cell disease management and early treatment.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42559690","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 : 2023-02-27DOI: 10.22201/icat.24486736e.2023.21.1.2182
Arkadiy A. Skvortsov, Evgeniya O. Gnatyuk, O. Sklemina, Vladimir K. Nikolaev
The presented paper is relevant, as it presents the results of fatigue tests of titanium alloy. The purpose of the article is to describe the use of the hypothesis of linear damage summation when processing the results of fatigue tests. In the study, the authors used empirical methods such as indirect observation of the object under study, description, and measurement of technical influences exerted on it by an artificial means. The linear regression analysis to establish the relationship between stress and durability was also used. The endurance limit of the titanium alloy was determined, which lies in the range from 460 to 480 MPa with the number of cycles from 105 to 108. It was concluded that the use of the linear damage summation hypothesis in processing the results of fatigue tests entails a satisfactory practical accuracy of the calculation of endurance limit
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