This paper reports the spectroscopic properties of praseodymium-doped potassium lutetium double phosphates, KLuP2O7:Pr3+(1%). Spectra of photoluminescence (PL), PL excitation, X-ray excited luminescence and pulse cathodoluminescence, thermally stimulated luminescence were measured. KLuP2O7:Pr3+ showed Pr3+ emission connected both with high intensity interconfigurational 4f15d1→4f2 transitions (UV bands in region of 250-320 nm), intraconfigurational 4f2→4f2 transitions (weak lines in vision spectral region) and Stocks defect-related luminescence. Upon both UV intra-center and band-to-band excitation with ionizing radiation, emission spectra of KLuP2O7:Pr3+ are dominated by Pr3+ interconfigurational 4f1 5d1→4f2 radiative transitions. Luminescence decay kinetics measurements established decay time τ ≈ 19 ns at room temperature. The study of thermally stimulated luminescence demonstrates effective light storage. Parameters of charge carriers’ traps were calculated: ΔE1 = 1.1 eV (for peak at 352 K) and ΔE2 = 1.3 eV (for peak at 388 K).
本文报道了掺镨镥双磷酸钾KLuP2O7:Pr3+(1%)的光谱性质。测量了光致发光光谱、光致发光光谱、x射线激发发光光谱、脉冲阴极发光光谱和热激发发光光谱。KLuP2O7:Pr3+显示Pr3+发射与高强度的构型间4f15d1→4f2跃迁(250 ~ 320 nm区域的紫外波段)、构型内4f2→4f2跃迁(视觉光谱区域的弱谱线)和Stocks缺陷相关发光有关。在紫外中心内激发和带对带电离辐射激发下，KLuP2O7:Pr3+的发射光谱以Pr3+构型间4f1 5d1→4f2辐射跃迁为主。荧光衰变动力学测量确定了室温下的衰变时间τ≈19 ns。热激发发光的研究证明了有效的光存储。计算了载流子阱的参数:ΔE1 = 1.1 eV (352 K峰值)，ΔE2 = 1.3 eV (388 K峰值)。
{"title":"Luminescence study of KLuP2O7 doped with Pr3+ ions under different types of excitation","authors":"S. Kiselev, V. Pustovarov","doi":"10.1063/5.0032260","DOIUrl":"https://doi.org/10.1063/5.0032260","url":null,"abstract":"This paper reports the spectroscopic properties of praseodymium-doped potassium lutetium double phosphates, KLuP2O7:Pr3+(1%). Spectra of photoluminescence (PL), PL excitation, X-ray excited luminescence and pulse cathodoluminescence, thermally stimulated luminescence were measured. KLuP2O7:Pr3+ showed Pr3+ emission connected both with high intensity interconfigurational 4f15d1→4f2 transitions (UV bands in region of 250-320 nm), intraconfigurational 4f2→4f2 transitions (weak lines in vision spectral region) and Stocks defect-related luminescence. Upon both UV intra-center and band-to-band excitation with ionizing radiation, emission spectra of KLuP2O7:Pr3+ are dominated by Pr3+ interconfigurational 4f1 5d1→4f2 radiative transitions. Luminescence decay kinetics measurements established decay time τ ≈ 19 ns at room temperature. The study of thermally stimulated luminescence demonstrates effective light storage. Parameters of charge carriers’ traps were calculated: ΔE1 = 1.1 eV (for peak at 352 K) and ΔE2 = 1.3 eV (for peak at 388 K).","PeriodicalId":422750,"journal":{"name":"THE 2ND INTERNATIONAL CONFERENCE ON PHYSICAL INSTRUMENTATION AND ADVANCED MATERIALS 2019","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130779032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The loT based automatic evaporation measuring instrument was designed in this research to replace the conventional measuring instrument, hook gauge and stilling well. This measuring instrument was composed of two components, namely NodeMCU microcontroller and infrared distance sensor. The measurement data is stored and displayed on the ThingSpeak website. To know the performance of the measuring instrument, conducted several tests. They are resolution tests, accuracy tests, short and long term stability test, and wireless communication between the instrument and server test. Based on the test result, obtained the resolution of the instrument was 2 mm, the accuracy has obtained the error of 2.34 mm by using the regression method and 0.34 mm by using a look-up table and interpolation method. The short stability reached above 95%. The standard deviation of the long term stability test was 0.157 mm, measured as much 100 times for 100 hours. Therefore, the measuring instrument successfully connects to the server and is able to send data properly.
本研究设计了一种基于loT的蒸发自动测量仪，以取代传统的测量仪、钩式压力表和静井。该测量仪由NodeMCU单片机和红外距离传感器两部分组成。测量数据被存储并显示在ThingSpeak网站上。为了解测量仪器的性能，进行了多次测试。它们是分辨率测试、精度测试、短期和长期稳定性测试以及仪器与服务器之间的无线通信测试。根据测试结果，得到仪器的分辨率为2 mm，采用回归法得到精度误差为2.34 mm，采用查表法和插值法得到精度误差为0.34 mm。短期稳定性达95%以上。长期稳定性试验的标准偏差为0.157 mm, 100小时测量100次。因此，测量仪器能够成功连接到服务器，并能够正常发送数据。
{"title":"Design of automatic water level measuring instrument IoT based on open pan evaporimeter","authors":"K. Ain, A. Rahmatillah, Virgilius Rivan Seran","doi":"10.1063/5.0034950","DOIUrl":"https://doi.org/10.1063/5.0034950","url":null,"abstract":"The loT based automatic evaporation measuring instrument was designed in this research to replace the conventional measuring instrument, hook gauge and stilling well. This measuring instrument was composed of two components, namely NodeMCU microcontroller and infrared distance sensor. The measurement data is stored and displayed on the ThingSpeak website. To know the performance of the measuring instrument, conducted several tests. They are resolution tests, accuracy tests, short and long term stability test, and wireless communication between the instrument and server test. Based on the test result, obtained the resolution of the instrument was 2 mm, the accuracy has obtained the error of 2.34 mm by using the regression method and 0.34 mm by using a look-up table and interpolation method. The short stability reached above 95%. The standard deviation of the long term stability test was 0.157 mm, measured as much 100 times for 100 hours. Therefore, the measuring instrument successfully connects to the server and is able to send data properly.","PeriodicalId":422750,"journal":{"name":"THE 2ND INTERNATIONAL CONFERENCE ON PHYSICAL INSTRUMENTATION AND ADVANCED MATERIALS 2019","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114618921","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}
E. Gordeev, M. Mashkovtsev, M. A. Berseneva, E. Baksheev, N. Zhirenkina, S. V. Buynachev
Oxide phosphors were produced from layered rare earth hydroxides synthesized by controlled double-jet precipitation at constant values pH 7 and 8. After precipitation, hydrothermal processing was carried out, which adversely affected luminescence intensity, but increased the crystallinity of the layered rare earth hydroxides. This makes it possible to obtain luminescent films with increased transparency and homogeneity from such layered hydroxides.
{"title":"Study of the effect of hydrothermal processing of yttrium-europium hydroxsonitrate on luminescence intensity of the oxide phosphors","authors":"E. Gordeev, M. Mashkovtsev, M. A. Berseneva, E. Baksheev, N. Zhirenkina, S. V. Buynachev","doi":"10.1063/5.0032157","DOIUrl":"https://doi.org/10.1063/5.0032157","url":null,"abstract":"Oxide phosphors were produced from layered rare earth hydroxides synthesized by controlled double-jet precipitation at constant values pH 7 and 8. After precipitation, hydrothermal processing was carried out, which adversely affected luminescence intensity, but increased the crystallinity of the layered rare earth hydroxides. This makes it possible to obtain luminescent films with increased transparency and homogeneity from such layered hydroxides.","PeriodicalId":422750,"journal":{"name":"THE 2ND INTERNATIONAL CONFERENCE ON PHYSICAL INSTRUMENTATION AND ADVANCED MATERIALS 2019","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131842649","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}
F. C. S. Arisgraha, Rahayu Novitasari, S. Soelistiono
At present, the morbidity of appendicitis is very high, this certainly makes appendicitis a priority health issue because it has a large impact on public health. The purpose of this study is to obtain a more accurate diagnostic method so that it is expected to be used in reducing morbidity and mortality rated due to inappropriate and rapid handling of appendicitis. Research on the identification of acute appendicitis using Artificial Neural Networks has been conducted. In this study used 154 medical records of inpatients with acute appendicitis and not acute appendicitis from Airlangga University Hospital. The identification program is made by training and testing the program using Backpropagation Neural Network algorithm. The training conducted showed that there was a significant influence between the maximum iteration, the MSE limit, the number of hidden neurons, and the learning rate used on the final weights of the resulting network, thus greatly affecting the percentage of testing. The training and testing of the program carried out with various combinations of input parameters, shows that the best parameters that can be used in this program are: 1000 times the maximum iteration, MSE limit of 0.000001, learning rate of 0.1, and hidden neurons of 5, which with these parameters, the program succeeded in achieving accurate identification of test data up to 98.4375%. Based on the results that have been obtained, this method is expected to be useful for the progress of the diagnostic system, especially in cases of acute appendicitis.
{"title":"Implementation of artificial neural network for identification of acute appendicitis","authors":"F. C. S. Arisgraha, Rahayu Novitasari, S. Soelistiono","doi":"10.1063/5.0034907","DOIUrl":"https://doi.org/10.1063/5.0034907","url":null,"abstract":"At present, the morbidity of appendicitis is very high, this certainly makes appendicitis a priority health issue because it has a large impact on public health. The purpose of this study is to obtain a more accurate diagnostic method so that it is expected to be used in reducing morbidity and mortality rated due to inappropriate and rapid handling of appendicitis. Research on the identification of acute appendicitis using Artificial Neural Networks has been conducted. In this study used 154 medical records of inpatients with acute appendicitis and not acute appendicitis from Airlangga University Hospital. The identification program is made by training and testing the program using Backpropagation Neural Network algorithm. The training conducted showed that there was a significant influence between the maximum iteration, the MSE limit, the number of hidden neurons, and the learning rate used on the final weights of the resulting network, thus greatly affecting the percentage of testing. The training and testing of the program carried out with various combinations of input parameters, shows that the best parameters that can be used in this program are: 1000 times the maximum iteration, MSE limit of 0.000001, learning rate of 0.1, and hidden neurons of 5, which with these parameters, the program succeeded in achieving accurate identification of test data up to 98.4375%. Based on the results that have been obtained, this method is expected to be useful for the progress of the diagnostic system, especially in cases of acute appendicitis.","PeriodicalId":422750,"journal":{"name":"THE 2ND INTERNATIONAL CONFERENCE ON PHYSICAL INSTRUMENTATION AND ADVANCED MATERIALS 2019","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131741408","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}
Gabriela Halim, E. Setiawatie, N. Ulfah, Ryza Indah Permatasari, Bintang Manafe
{"title":"Cytotoxicity evaluation of bovine tooth hydroxyapatite","authors":"Gabriela Halim, E. Setiawatie, N. Ulfah, Ryza Indah Permatasari, Bintang Manafe","doi":"10.1063/5.0036493","DOIUrl":"https://doi.org/10.1063/5.0036493","url":null,"abstract":"","PeriodicalId":422750,"journal":{"name":"THE 2ND INTERNATIONAL CONFERENCE ON PHYSICAL INSTRUMENTATION AND ADVANCED MATERIALS 2019","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123548101","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}
V. Kononova, O. Orudzhova, A. Shinkaruk, O. Popova
{"title":"The change of physical parameters of geosynthetic material under the action of chemical media","authors":"V. Kononova, O. Orudzhova, A. Shinkaruk, O. Popova","doi":"10.1063/5.0032413","DOIUrl":"https://doi.org/10.1063/5.0032413","url":null,"abstract":"","PeriodicalId":422750,"journal":{"name":"THE 2ND INTERNATIONAL CONFERENCE ON PHYSICAL INSTRUMENTATION AND ADVANCED MATERIALS 2019","volume":"88 20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126313146","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}
D. A. Prokopyev, A. Germov, K. Mikhalev, B. Y. Goloborodskii, M. Uimin, A. Yermakov, A. Konev, S. Novikov
{"title":"NMR study of phase composition of carbon encapsulated Fe@C nanoparticles","authors":"D. A. Prokopyev, A. Germov, K. Mikhalev, B. Y. Goloborodskii, M. Uimin, A. Yermakov, A. Konev, S. Novikov","doi":"10.1063/5.0032918","DOIUrl":"https://doi.org/10.1063/5.0032918","url":null,"abstract":"","PeriodicalId":422750,"journal":{"name":"THE 2ND INTERNATIONAL CONFERENCE ON PHYSICAL INSTRUMENTATION AND ADVANCED MATERIALS 2019","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115026609","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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