Journal of Nano-and electronic Physics最新文献

Commuting and work-related accidents among employed Brazilians, National Survey of Health 2013 and 2019. 巴西就业人口的通勤和工伤事故，2013 年和 2019 年全国健康调查。

Journal of Nano-and electronic Physics Pub Date : 2023-04-21 eCollection Date: 2023-01-01 DOI: 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

{"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":"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.","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}

引用次数: 0

A Compact Two-port MIMO Array Antenna for ISM/5G NR/WLAN Band Applications 用于ISM/5G NR/WLAN频段应用的紧凑型双端口MIMO阵列天线

Journal of Nano-and electronic Physics Pub Date : 2023-01-01 DOI: 10.21272/jnep.15(1).01027

Ouafae Elalaouy, S. Varakumari, M. El Ghzaoui, J. Foshi, Sudipta Das

引用次数: 0

Structural and Optical Properties of Ba(Zr0.3Ti0.7)O3 and Ba(Zr0.5Ti0.5)O3 Thin Films Prepared by Sol-Gel Method 溶胶-凝胶法制备Ba(Zr0.3Ti0.7)O3和Ba(Zr0.5Ti0.5)O3薄膜的结构和光学性质

Journal of Nano-and electronic Physics Pub Date : 2023-01-01 DOI: 10.21272/jnep.15(2).02018

R. Dewi, T. S. Luqman, Krisman Krisman, A. S. Rini, H. Yanuar

引用次数: 0

Ensemble Approach for Capacitance Prediction of Heteroatom Doped Carbon Based Electrode Materials 杂原子掺杂碳基电极材料电容预测的系综方法

Journal of Nano-and electronic Physics Pub Date : 2023-01-01 DOI: 10.21272/jnep.15(3).03011

Richa Dubey, Velmathi Guruviah, Ravi Prakash Dwivedi

{"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}

引用次数: 0

New Fractional Wavelet with Compact Support and Its Application to Signal Denoising 具有紧凑支持的新型分数小波及其在信号去噪中的应用

Journal of Nano-and electronic Physics Pub Date : 2023-01-01 DOI: 10.21272/jnep.15(2).02023

Abderrahim Lanani, A. Abboudi

引用次数: 0

Natural Light Diffraction on Endless Grating of Metal Strips 金属条无限光栅的自然光衍射

Journal of Nano-and electronic Physics Pub Date : 2023-01-01 DOI: 10.21272/jnep.15(2).02029

A. V. Bezougly, O. Petchenko, G. Petchenko, G. Y. Dulfan, A. V. Poyda

引用次数: 0

Design and Analysis of Energy Transition in Hybrid Electric Vehicle Power Train Systems 混合动力汽车动力传动系统能量转换设计与分析

Journal of Nano-and electronic Physics Pub Date : 2023-01-01 DOI: 10.21272/jnep.15(3).03008

U. S, G. P., A. Manimaran, S. Parasuraman, T. Karthika, Selciya Selvan, D. Kumutha

{"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}

引用次数: 0

System for a Solar Power High-Frequency Converter Operation in Electric Vehicle Application 太阳能高频变换器在电动汽车上的应用

Journal of Nano-and electronic Physics Pub Date : 2023-01-01 DOI: 10.21272/jnep.15(3).03009

U. S, G. P., S. Parasuraman, A. Manimaran, T. Karthika, S. Selvan, D. Kumutha

{"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}

引用次数: 0

Optical Properties of GexSi1 – x Binary Compounds in Silicon 硅中GexSi1 - x二元化合物的光学性质

Journal of Nano-and electronic Physics Pub Date : 2023-01-01 DOI: 10.21272/jnep.15(3).03024

N. Zikrillaev, G. A. Kushiev, Sh. I. Hamrokulov, Y. A. Abduganiev

引用次数: 1

Study and Design of a 5G Millimeter Band Patch Antenna with a Resonant Frequency of 60 GHz 60 GHz 5G毫米波频段贴片天线的研究与设计

Journal of Nano-and electronic Physics Pub Date : 2023-01-01 DOI: 10.21272/jnep.15(2).02015

S. Didi, I. Halkhams, M. Fattah, Y. Balboul, S. Mazer, M. El Bekkali

引用次数: 0