Pub Date : 2023-04-21eCollection Date: 2023-01-01DOI: 10.1590/1980-549720230006.supl.1
Deborah Carvalho Malta, Regina Tomie Ivata Bernal, Nádia Machado de Vasconcelos, Adalgisa Peixoto Ribeiro, Lêda Lúcia Couto de Vasconcelos, Elaine Leandro Machado
Objective: To analyze the prevalence of work-related accidents, according to sociodemographic and occupational variables, in 2013 and 2019.
Methods: Cross-sectional study using data from the National Survey of Health (PNS) 2013 and 2019. Typical work accidents (WA), commuting accidents (CA), and Total Work Accidents (TWA) were evaluated. Prevalence values and 95% confidence intervals (95%CI) of TWA in 2013 and 2019 were estimated according to the explanatory variables and for Federative Units and capitals. In 2019, the prevalence and 95%CI according to explanatory variables were estimated using prevalence ratios (PR), both crude and adjusted for sex and age group.
Results: TWA prevalence decreased from 4.96% (95%CI 4.55-5.38) in 2013 to 4.13% (95%CI 3.80-4.46) in 2019. In 2013, the state of Pará prevailed in TWA, and the state of Mato Grosso in 2019. The prevalence of WA and CA in 2019 were: 2.64% (95%CI 2.37-2.91) and 1.60% (95%CI 1.40-1.80). In 2019, the prevalence for TWA were higher for men (PR: 1.92; 95%CI 1.62-2.27); in the 18-29 age group (PR: 2.71; 95%CI 1.99-3.68); people with elementary school and some high school (PR: 2.09; 95%CI 1.57-2.78); and Black individuals (PR: 1.43; 95%CI 1.12-1.84). People without formal employment contract had a lower prevalence of TWA (PR: 0.77; 95%CI 0.66-0.90). WA was higher in rural areas (PR: 1.32; 95%CI 1.09-1.60).
Conclusion: There was a reduction in TWA between 2013 and 2019. Men, young people, Black people, and individuals with lower level of education, residents in rural areas had higher prevalence of WA in 2019, demonstrating a relationship between health-disease-accident processes.
{"title":"Commuting and work-related accidents among employed Brazilians, National Survey of Health 2013 and 2019.","authors":"Deborah Carvalho Malta, Regina Tomie Ivata Bernal, Nádia Machado de Vasconcelos, Adalgisa Peixoto Ribeiro, Lêda Lúcia Couto de Vasconcelos, Elaine Leandro Machado","doi":"10.1590/1980-549720230006.supl.1","DOIUrl":"10.1590/1980-549720230006.supl.1","url":null,"abstract":"<p><strong>Objective: </strong>To analyze the prevalence of work-related accidents, according to sociodemographic and occupational variables, in 2013 and 2019.</p><p><strong>Methods: </strong>Cross-sectional study using data from the National Survey of Health (PNS) 2013 and 2019. Typical work accidents (WA), commuting accidents (CA), and Total Work Accidents (TWA) were evaluated. Prevalence values and 95% confidence intervals (95%CI) of TWA in 2013 and 2019 were estimated according to the explanatory variables and for Federative Units and capitals. In 2019, the prevalence and 95%CI according to explanatory variables were estimated using prevalence ratios (PR), both crude and adjusted for sex and age group.</p><p><strong>Results: </strong>TWA prevalence decreased from 4.96% (95%CI 4.55-5.38) in 2013 to 4.13% (95%CI 3.80-4.46) in 2019. In 2013, the state of Pará prevailed in TWA, and the state of Mato Grosso in 2019. The prevalence of WA and CA in 2019 were: 2.64% (95%CI 2.37-2.91) and 1.60% (95%CI 1.40-1.80). In 2019, the prevalence for TWA were higher for men (PR: 1.92; 95%CI 1.62-2.27); in the 18-29 age group (PR: 2.71; 95%CI 1.99-3.68); people with elementary school and some high school (PR: 2.09; 95%CI 1.57-2.78); and Black individuals (PR: 1.43; 95%CI 1.12-1.84). People without formal employment contract had a lower prevalence of TWA (PR: 0.77; 95%CI 0.66-0.90). WA was higher in rural areas (PR: 1.32; 95%CI 1.09-1.60).</p><p><strong>Conclusion: </strong>There was a reduction in TWA between 2013 and 2019. Men, young people, Black people, and individuals with lower level of education, residents in rural areas had higher prevalence of WA in 2019, demonstrating a relationship between health-disease-accident processes.</p>","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":"e230006"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90036544","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 : 2023-01-01DOI: 10.21272/jnep.15(1).01027
Ouafae Elalaouy, S. Varakumari, M. El Ghzaoui, J. Foshi, Sudipta Das
{"title":"A Compact Two-port MIMO Array Antenna for ISM/5G NR/WLAN Band Applications","authors":"Ouafae Elalaouy, S. Varakumari, M. El Ghzaoui, J. Foshi, Sudipta Das","doi":"10.21272/jnep.15(1).01027","DOIUrl":"https://doi.org/10.21272/jnep.15(1).01027","url":null,"abstract":"","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68045026","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 : 2023-01-01DOI: 10.21272/jnep.15(2).02018
R. Dewi, T. S. Luqman, Krisman Krisman, A. S. Rini, H. Yanuar
{"title":"Structural and Optical Properties of Ba(Zr0.3Ti0.7)O3 and Ba(Zr0.5Ti0.5)O3 Thin Films Prepared by Sol-Gel Method","authors":"R. Dewi, T. S. Luqman, Krisman Krisman, A. S. Rini, H. Yanuar","doi":"10.21272/jnep.15(2).02018","DOIUrl":"https://doi.org/10.21272/jnep.15(2).02018","url":null,"abstract":"","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68045039","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 : 2023-01-01DOI: 10.21272/jnep.15(3).03011
Richa Dubey, Velmathi Guruviah, Ravi Prakash Dwivedi
An ensemble approach-based machine learning modeling is used in the current study for unveiling the effect of various electrode parameters on the electrochemical performance of hetero-atom doped nanocarbons. This is achieved using three meta-classifiers in combination with traditional Multi-Layer Perceptron and Random Forest models. The three meta-classifiers used are namely (i) bagging, (ii) classification via regression (CVR) and (iii) multi class classifier (MCC). Amongst these three models, bagging and classification via regression provided greater accuracy in terms of correctly classified instances (%) and area under region of convergence values. The designed models are used to predict class of specific capacitance values. 94.5 % of the considered dataset is classified correctly proving a better accuracy of the designed models. Lowest root mean square value of 0.1787 was obtained for RF model. Compared to the models defined in the literature, the suggested models in this work provide best fit of the experiment and predicted values with highest accuracy and lowest error performance values. The lowest error value for RF and MLP models are 0.18 and 0.19 respectively.
{"title":"Ensemble Approach for Capacitance Prediction of Heteroatom Doped Carbon Based Electrode Materials","authors":"Richa Dubey, Velmathi Guruviah, Ravi Prakash Dwivedi","doi":"10.21272/jnep.15(3).03011","DOIUrl":"https://doi.org/10.21272/jnep.15(3).03011","url":null,"abstract":"An ensemble approach-based machine learning modeling is used in the current study for unveiling the effect of various electrode parameters on the electrochemical performance of hetero-atom doped nanocarbons. This is achieved using three meta-classifiers in combination with traditional Multi-Layer Perceptron and Random Forest models. The three meta-classifiers used are namely (i) bagging, (ii) classification via regression (CVR) and (iii) multi class classifier (MCC). Amongst these three models, bagging and classification via regression provided greater accuracy in terms of correctly classified instances (%) and area under region of convergence values. The designed models are used to predict class of specific capacitance values. 94.5 % of the considered dataset is classified correctly proving a better accuracy of the designed models. Lowest root mean square value of 0.1787 was obtained for RF model. Compared to the models defined in the literature, the suggested models in this work provide best fit of the experiment and predicted values with highest accuracy and lowest error performance values. The lowest error value for RF and MLP models are 0.18 and 0.19 respectively.","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68045513","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 : 2023-01-01DOI: 10.21272/jnep.15(2).02023
Abderrahim Lanani, A. Abboudi
{"title":"New Fractional Wavelet with Compact Support and Its Application to Signal Denoising","authors":"Abderrahim Lanani, A. Abboudi","doi":"10.21272/jnep.15(2).02023","DOIUrl":"https://doi.org/10.21272/jnep.15(2).02023","url":null,"abstract":"","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68045717","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 : 2023-01-01DOI: 10.21272/jnep.15(2).02029
A. V. Bezougly, O. Petchenko, G. Petchenko, G. Y. Dulfan, A. V. Poyda
{"title":"Natural Light Diffraction on Endless Grating of Metal Strips","authors":"A. V. Bezougly, O. Petchenko, G. Petchenko, G. Y. Dulfan, A. V. Poyda","doi":"10.21272/jnep.15(2).02029","DOIUrl":"https://doi.org/10.21272/jnep.15(2).02029","url":null,"abstract":"","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68045906","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 : 2023-01-01DOI: 10.21272/jnep.15(3).03008
U. S, G. P., A. Manimaran, S. Parasuraman, T. Karthika, Selciya Selvan, D. Kumutha
The electrified powertrain is the essential component of all these electric car systems. With the help of our power semiconductor products and intelligent control ICs, it is possible to optimize many targets simultaneously for lower system costs, higher power densities, more effective applications, and modular systems. A hybrid electric vehicle (HEV) is modeled and simulated using the MATLAB – Simulink environment in current research. A discussion of the most popular structures for realizing HEVs is suggested. An electric power motor, electronic power converters, and devices for energy storage are routinely given as part of several modeling processes. The most significant electrical and mechanical modeling results that defined the HEVs are given. This modeling approach is highly beneficial and appropriate for explaining power and automotive electronics. In this research article, the design goal is to offer efficient throttle movement, 0 % steady-state speed error, and to maintain a Selected Vehicle (SV) speed. Comparison research is conducted to determine the superiority of the optimal control approach to enhance fuel economy, decrease pollution, maximize driving safety, and lower manufacturing costs. The maximum power proposed in the hybrid electric vehicle train is 35,000 Watts, higher compared to the existing system of 32,000 Watts.
{"title":"Design and Analysis of Energy Transition in Hybrid Electric Vehicle Power Train Systems","authors":"U. S, G. P., A. Manimaran, S. Parasuraman, T. Karthika, Selciya Selvan, D. Kumutha","doi":"10.21272/jnep.15(3).03008","DOIUrl":"https://doi.org/10.21272/jnep.15(3).03008","url":null,"abstract":"The electrified powertrain is the essential component of all these electric car systems. With the help of our power semiconductor products and intelligent control ICs, it is possible to optimize many targets simultaneously for lower system costs, higher power densities, more effective applications, and modular systems. A hybrid electric vehicle (HEV) is modeled and simulated using the MATLAB – Simulink environment in current research. A discussion of the most popular structures for realizing HEVs is suggested. An electric power motor, electronic power converters, and devices for energy storage are routinely given as part of several modeling processes. The most significant electrical and mechanical modeling results that defined the HEVs are given. This modeling approach is highly beneficial and appropriate for explaining power and automotive electronics. In this research article, the design goal is to offer efficient throttle movement, 0 % steady-state speed error, and to maintain a Selected Vehicle (SV) speed. Comparison research is conducted to determine the superiority of the optimal control approach to enhance fuel economy, decrease pollution, maximize driving safety, and lower manufacturing costs. The maximum power proposed in the hybrid electric vehicle train is 35,000 Watts, higher compared to the existing system of 32,000 Watts.","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68045939","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 : 2023-01-01DOI: 10.21272/jnep.15(3).03009
U. S, G. P., S. Parasuraman, A. Manimaran, T. Karthika, S. Selvan, D. Kumutha
A solar power system is the most reliable and environmentally-friendly form of energy because it is non-polluting, inexhaustible, and non-toxic. Because of the rapid advancement of semiconductor devices and the application of power electronics methods, it is required to maintain the DC maximum power and high output efficiency of solar arrays. The solar power converter operates as a single-stage and single-phase converter on both the transmitter and receiver sides with some parameter configurations. This proposed system mostly utilizes the PV array with the high-frequency inverter integrating the DC-DC converter, which minimizes the converter losses and the current ripple. A high-frequency rectifier can be used on the receiver side of the proposed output circuit to rectify it. By reducing switching and conduction losses, it is possible to increase the output power. This circuit diagram uses a prescribed level of solar irradiance, suitable DC optimal voltage, and optimal AC RMS current to simulate an entire AC cycle. MATLAB/SIMULINK is used to design and simulate the system. Using an irradiance value of 1000 W/m 2 , and a temperature of 20 C, the optimal output values have been obtained and evaluated as 342V DC and 20.05A AC. Thus, the main objective of this paper is to create a highly efficient energy converter to charge EVs with a DC input voltage of 12 V. This converter will have a high-efficiency range of 96 %.
{"title":"System for a Solar Power High-Frequency Converter Operation in Electric Vehicle Application","authors":"U. S, G. P., S. Parasuraman, A. Manimaran, T. Karthika, S. Selvan, D. Kumutha","doi":"10.21272/jnep.15(3).03009","DOIUrl":"https://doi.org/10.21272/jnep.15(3).03009","url":null,"abstract":"A solar power system is the most reliable and environmentally-friendly form of energy because it is non-polluting, inexhaustible, and non-toxic. Because of the rapid advancement of semiconductor devices and the application of power electronics methods, it is required to maintain the DC maximum power and high output efficiency of solar arrays. The solar power converter operates as a single-stage and single-phase converter on both the transmitter and receiver sides with some parameter configurations. This proposed system mostly utilizes the PV array with the high-frequency inverter integrating the DC-DC converter, which minimizes the converter losses and the current ripple. A high-frequency rectifier can be used on the receiver side of the proposed output circuit to rectify it. By reducing switching and conduction losses, it is possible to increase the output power. This circuit diagram uses a prescribed level of solar irradiance, suitable DC optimal voltage, and optimal AC RMS current to simulate an entire AC cycle. MATLAB/SIMULINK is used to design and simulate the system. Using an irradiance value of 1000 W/m 2 , and a temperature of 20 C, the optimal output values have been obtained and evaluated as 342V DC and 20.05A AC. Thus, the main objective of this paper is to create a highly efficient energy converter to charge EVs with a DC input voltage of 12 V. This converter will have a high-efficiency range of 96 %.","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68045950","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 : 2023-01-01DOI: 10.21272/jnep.15(3).03024
N. Zikrillaev, G. A. Kushiev, Sh. I. Hamrokulov, Y. A. Abduganiev
The use of alternative and renewable sources of energy supply in energy supply around the world is attracting great and practical interest. The growing interest in them is caused by environmental considerations, on the one hand, and the limited nature of traditional hydrocarbon energy sources, on the other. A special place among alternative and renewable energy sources is occupied by photoelectric solar energy converters, the study of physics, which has become a separate scientific direction of photovoltaics. The development and creation of photocells based on silicon by binary compounds of germanium atoms Ge x Si 1–x in volume is also of particular interest to scientists and specialists. Since the production of silicon with binary compounds of silicon-germanium with certain electrical parameters and structure allows you to significantly expand the spectral region of the sensitivity of photodetectors and the efficiency of photocells based on such materials.
替代能源和可再生能源在全球能源供应中的应用正引起人们极大的实际兴趣。对它们日益增长的兴趣一方面是由于环境方面的考虑，另一方面是由于传统碳氢化合物能源的有限性。光电太阳能转换器在替代能源和可再生能源中占有特殊的地位，它的物理研究已经成为光伏学的一个独立的科学方向。科学家和专家对基于硅的光电池的发展和创造也特别感兴趣，这种光电池是由体积为锗原子Ge x Si 1-x的二元化合物制成的。由于硅-锗二元化合物具有一定的电学参数和结构，因此可以显著地扩展光电探测器的光谱区域的灵敏度和基于这种材料的光电池的效率。
{"title":"Optical Properties of GexSi1 – x Binary Compounds in Silicon","authors":"N. Zikrillaev, G. A. Kushiev, Sh. I. Hamrokulov, Y. A. Abduganiev","doi":"10.21272/jnep.15(3).03024","DOIUrl":"https://doi.org/10.21272/jnep.15(3).03024","url":null,"abstract":"The use of alternative and renewable sources of energy supply in energy supply around the world is attracting great and practical interest. The growing interest in them is caused by environmental considerations, on the one hand, and the limited nature of traditional hydrocarbon energy sources, on the other. A special place among alternative and renewable energy sources is occupied by photoelectric solar energy converters, the study of physics, which has become a separate scientific direction of photovoltaics. The development and creation of photocells based on silicon by binary compounds of germanium atoms Ge x Si 1–x in volume is also of particular interest to scientists and specialists. Since the production of silicon with binary compounds of silicon-germanium with certain electrical parameters and structure allows you to significantly expand the spectral region of the sensitivity of photodetectors and the efficiency of photocells based on such materials.","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68046406","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 : 2023-01-01DOI: 10.21272/jnep.15(2).02015
S. Didi, I. Halkhams, M. Fattah, Y. Balboul, S. Mazer, M. El Bekkali
{"title":"Study and Design of a 5G Millimeter Band Patch Antenna with a Resonant Frequency of 60 GHz","authors":"S. Didi, I. Halkhams, M. Fattah, Y. Balboul, S. Mazer, M. El Bekkali","doi":"10.21272/jnep.15(2).02015","DOIUrl":"https://doi.org/10.21272/jnep.15(2).02015","url":null,"abstract":"","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68044898","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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