Flame speed and laminar burning velocity (LBV) are important properties of fuel combustion. Both have an impact on how combustion systems are designed and operated. As a result, understanding how LBV and flame speed fluctuate as a function of thermodynamic conditions is critical for understanding the impact of practical applications in all combustion systems. Working pressures and temperatures are far higher than those found in the environment. Several studies on flame speed and LBV have been conducted. This study, however, includes a thorough literature analysis of approaches and procedures used to measure these two parameters, as well as the effects of operational factors for various fuels, with a focus on biofuels, for the sake of review simplicity.
{"title":"Flame Speed and Laminar Burning Velocity in Syngas/Air Mixtures: A Review","authors":"S. H. Mahdi, Z. Al-Dulaimi","doi":"10.18280/i2m.210302","DOIUrl":"https://doi.org/10.18280/i2m.210302","url":null,"abstract":"Flame speed and laminar burning velocity (LBV) are important properties of fuel combustion. Both have an impact on how combustion systems are designed and operated. As a result, understanding how LBV and flame speed fluctuate as a function of thermodynamic conditions is critical for understanding the impact of practical applications in all combustion systems. Working pressures and temperatures are far higher than those found in the environment. Several studies on flame speed and LBV have been conducted. This study, however, includes a thorough literature analysis of approaches and procedures used to measure these two parameters, as well as the effects of operational factors for various fuels, with a focus on biofuels, for the sake of review simplicity.","PeriodicalId":38637,"journal":{"name":"Instrumentation Mesure Metrologie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42918915","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}
Natural particles and their composites are important in materials science, where a significant attentiveness is being displayed in the usage of natural particles as reinforcement in polymer composites. The purpose of this research is to investigate the effect of the walnut shell particles as reinforcing fillers in a matrix composite. So, the amount composite examples were advanced through varying the percentage by weight of filler (3, 5, 7, and 9%) in an epoxy and unsaturated polyester polymer. Composite samples were mechanically characterized by tensile tests, flexural tests, hardness tests, and the Izod impact test. The tensile strength and impact strength of epoxy resin were increased after adding organic waste filler. The highest values of tensile strength and impact strength happened at 7% wt. The flexural strength and hardness of shore D increased with the percentage of walnut shell particles. The highest values of flexural strength and hardness were found at 9% wt. The results show that the mechanical properties of epoxy composite are better than the mechanical properties of unsaturated polyester composite when walnut shell particles are added.
{"title":"Study of Polymeric Composite Reinforced with Natural Particles: Measurement and Evaluation","authors":"J. K. Oleiwi, R. S. Hadi","doi":"10.18280/i2m.210304","DOIUrl":"https://doi.org/10.18280/i2m.210304","url":null,"abstract":"Natural particles and their composites are important in materials science, where a significant attentiveness is being displayed in the usage of natural particles as reinforcement in polymer composites. The purpose of this research is to investigate the effect of the walnut shell particles as reinforcing fillers in a matrix composite. So, the amount composite examples were advanced through varying the percentage by weight of filler (3, 5, 7, and 9%) in an epoxy and unsaturated polyester polymer. Composite samples were mechanically characterized by tensile tests, flexural tests, hardness tests, and the Izod impact test. The tensile strength and impact strength of epoxy resin were increased after adding organic waste filler. The highest values of tensile strength and impact strength happened at 7% wt. The flexural strength and hardness of shore D increased with the percentage of walnut shell particles. The highest values of flexural strength and hardness were found at 9% wt. The results show that the mechanical properties of epoxy composite are better than the mechanical properties of unsaturated polyester composite when walnut shell particles are added.","PeriodicalId":38637,"journal":{"name":"Instrumentation Mesure Metrologie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47170280","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}
Nowadays, sensor technology has attracted great interest in various domains. In this work, we have analyzed a one dimensional phononic crystal made by the stack of N bilayers of (LiNbO3/SiO2). The sensor design consists of a one dimensional phononic crystal structure with a defect layer inserted in the middle. Using the Transfer Matrix Method (TMM), the transmission spectrums of acoustic waves are calculated and plotted. In this work, we are interested in the resonance peak that is transmitted inside the phononic band gap. The results obtained show clearly that the resonant frequency of the measured transmission peak is very sensitive to the layer defect properties. This proves that such structure offers a new platform for sensing applications.
{"title":"Design of a Thickness Sensor Based on a One-Dimensional Phononic Crystal","authors":"A. Kahlouche, M. Bouras, A. Hocini","doi":"10.18280/i2m.210303","DOIUrl":"https://doi.org/10.18280/i2m.210303","url":null,"abstract":"Nowadays, sensor technology has attracted great interest in various domains. In this work, we have analyzed a one dimensional phononic crystal made by the stack of N bilayers of (LiNbO3/SiO2). The sensor design consists of a one dimensional phononic crystal structure with a defect layer inserted in the middle. Using the Transfer Matrix Method (TMM), the transmission spectrums of acoustic waves are calculated and plotted. In this work, we are interested in the resonance peak that is transmitted inside the phononic band gap. The results obtained show clearly that the resonant frequency of the measured transmission peak is very sensitive to the layer defect properties. This proves that such structure offers a new platform for sensing applications.","PeriodicalId":38637,"journal":{"name":"Instrumentation Mesure Metrologie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46702130","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}
A. Yudhana, Retnosyari Septiyani, I. Mufandi, Phisca Aditya Rosyady, Muhammad Fahri Husein, Lutfi Ihza Mahendra Abdullatif
In everyday life, food is made with various taste images, including the savory taste obtained from monosodium glutamate (MSG). Although it is allowed as a food ingredient, excessive use of MSG and continuous consumption will have adverse effects on health. The effects of consuming MSG excessively on the body's organs include brain, ovarian, testicular, liver, kidney, heart, and respiratory disorders. MSG detection using technology is needed to control the consumption of MSG in the body. Hence, this study was focused on creating a portable device for detecting monosodium glutamate (MSG) in soupy foods: meatball soup and chicken soup. 3 mg of MSG was applied to each solution sample and four MSG brands, including SS, MW, AM, and MR. The concept of this prototype is based on the conductivity value and total dissolved solids (TDS) in the MSG solution. These solutions can produce an electrolyte because there is a sodium salt content in the MSG solution and water. The electrolyte solution can conduct electricity. An electrical conductivity sensor was installed in this prototype and these sensors included two electrode plates, a positive electrode (anode) and a negative electrode (cathode) with a distance of ± 1 cm. The conductivity sensor begins by starting a sensor into an electrolyte solution and, given an electric voltage input, changes to the value of the electric voltage. The sensor can be read and detect the MSG level in the solution. Then, the data are received and recorded in the DRF analog which is to process the signal from the sensor into analog form, and the data is sent to the Arduino Nano as a microcontroller. From the experiment result, the average conductivity value and TDS value of meatball soup are 21.98 mS and 7.91 Mg/I, while the average conductivity value and TDS value of Chicken Soto are 16.92 mS and 6.08 mg/I. This prototype was successfully created and implemented for the MSG detection in soupy foods.
{"title":"A portable device based on an electrical conductivity sensor for the detection of monosodium glutamate (MSG) in soupy foods","authors":"A. Yudhana, Retnosyari Septiyani, I. Mufandi, Phisca Aditya Rosyady, Muhammad Fahri Husein, Lutfi Ihza Mahendra Abdullatif","doi":"10.18280/i2m.210305","DOIUrl":"https://doi.org/10.18280/i2m.210305","url":null,"abstract":"In everyday life, food is made with various taste images, including the savory taste obtained from monosodium glutamate (MSG). Although it is allowed as a food ingredient, excessive use of MSG and continuous consumption will have adverse effects on health. The effects of consuming MSG excessively on the body's organs include brain, ovarian, testicular, liver, kidney, heart, and respiratory disorders. MSG detection using technology is needed to control the consumption of MSG in the body. Hence, this study was focused on creating a portable device for detecting monosodium glutamate (MSG) in soupy foods: meatball soup and chicken soup. 3 mg of MSG was applied to each solution sample and four MSG brands, including SS, MW, AM, and MR. The concept of this prototype is based on the conductivity value and total dissolved solids (TDS) in the MSG solution. These solutions can produce an electrolyte because there is a sodium salt content in the MSG solution and water. The electrolyte solution can conduct electricity. An electrical conductivity sensor was installed in this prototype and these sensors included two electrode plates, a positive electrode (anode) and a negative electrode (cathode) with a distance of ± 1 cm. The conductivity sensor begins by starting a sensor into an electrolyte solution and, given an electric voltage input, changes to the value of the electric voltage. The sensor can be read and detect the MSG level in the solution. Then, the data are received and recorded in the DRF analog which is to process the signal from the sensor into analog form, and the data is sent to the Arduino Nano as a microcontroller. From the experiment result, the average conductivity value and TDS value of meatball soup are 21.98 mS and 7.91 Mg/I, while the average conductivity value and TDS value of Chicken Soto are 16.92 mS and 6.08 mg/I. This prototype was successfully created and implemented for the MSG detection in soupy foods.","PeriodicalId":38637,"journal":{"name":"Instrumentation Mesure Metrologie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45040954","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}
M. Ahmida, A. Elmaryami, Farag Gait Abelrahman Boukhrias, Ahmed M. Ahmed El Menshaz
A preliminary investigation of some factors which can affect the reflected light intensity from granular and icing sugar has been carried out using an end viewing hemispherical tip probe. It is found that the reflectance is strongly dependent on the size range of the sugar particles, with the finer particles being more reflective. This property could be very useful in monitoring segregation in mixtures of mono-colored powders having different size distributions. Force applied to the probe will also affect the intensity readings. A layered mixture of sugar and slag powder was used to compare the sampling performance of the above probe with a side viewing wedge tip probe. Calibration curves for reflected light intensity versus percent slag concentration are obtained for two types of slag.
{"title":"Investigation of Using Physical Optical Reflectivity Probes in Evaluating and Monitoring Powder Mixtures of Sugar and Slag","authors":"M. Ahmida, A. Elmaryami, Farag Gait Abelrahman Boukhrias, Ahmed M. Ahmed El Menshaz","doi":"10.18280/i2m.210202","DOIUrl":"https://doi.org/10.18280/i2m.210202","url":null,"abstract":"A preliminary investigation of some factors which can affect the reflected light intensity from granular and icing sugar has been carried out using an end viewing hemispherical tip probe. It is found that the reflectance is strongly dependent on the size range of the sugar particles, with the finer particles being more reflective. This property could be very useful in monitoring segregation in mixtures of mono-colored powders having different size distributions. Force applied to the probe will also affect the intensity readings. A layered mixture of sugar and slag powder was used to compare the sampling performance of the above probe with a side viewing wedge tip probe. Calibration curves for reflected light intensity versus percent slag concentration are obtained for two types of slag.","PeriodicalId":38637,"journal":{"name":"Instrumentation Mesure Metrologie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42536377","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}
Mekhala Insawang, Kongphope Chaarmart, T. Seetawan
This work developed a biosensor for the measurement of ethanol gas in the air. The biosensors were synthesized by mixing signal layer materials containing SiO2 and polyimide (PI) substrates using the enzyme Alcohol Dehydrogenase (ADH) and coenzyme Nicotinamide Adenine Dinucleotide (NAD+) as a biosensor. The electrodes were coated on biosensors by DC magnetron sputtering method for test the response performance of the developed biosensors. The ADH/NAD+ was immobilized on the Ag electrode by Glutaric dialaehyde 25 wt. % cross-linking procedure. It was found that, alcohol biosensors can be exhibited sensing ethanol gas at even low concentrations from 300 ppb to very high concentrations up to 1900 ppm, response time 3 s, recovery times 1-2 minutes and good sensitivity. The SiO2 substrate has excellent, which provides significant advantages for wearable electronic device that compact, easy to use and reduce direct contact with alcoholics. The alcohol biosensors can adoption in next generation to other electronic devices, because easy to integrate, such as a module alcohol biosensor with wireless or the fabrication of the RCL circuit. Furthermore, the alcohol biosensors based on SiO2/Ag/ADH, PI/Ag/ADH is artificial intelligence strategy for stable practical wearable electronic devices.
{"title":"Development of Biosensors for Ethanol Gas Detection","authors":"Mekhala Insawang, Kongphope Chaarmart, T. Seetawan","doi":"10.18280/i2m.210203","DOIUrl":"https://doi.org/10.18280/i2m.210203","url":null,"abstract":"This work developed a biosensor for the measurement of ethanol gas in the air. The biosensors were synthesized by mixing signal layer materials containing SiO2 and polyimide (PI) substrates using the enzyme Alcohol Dehydrogenase (ADH) and coenzyme Nicotinamide Adenine Dinucleotide (NAD+) as a biosensor. The electrodes were coated on biosensors by DC magnetron sputtering method for test the response performance of the developed biosensors. The ADH/NAD+ was immobilized on the Ag electrode by Glutaric dialaehyde 25 wt. % cross-linking procedure. It was found that, alcohol biosensors can be exhibited sensing ethanol gas at even low concentrations from 300 ppb to very high concentrations up to 1900 ppm, response time 3 s, recovery times 1-2 minutes and good sensitivity. The SiO2 substrate has excellent, which provides significant advantages for wearable electronic device that compact, easy to use and reduce direct contact with alcoholics. The alcohol biosensors can adoption in next generation to other electronic devices, because easy to integrate, such as a module alcohol biosensor with wireless or the fabrication of the RCL circuit. Furthermore, the alcohol biosensors based on SiO2/Ag/ADH, PI/Ag/ADH is artificial intelligence strategy for stable practical wearable electronic devices.","PeriodicalId":38637,"journal":{"name":"Instrumentation Mesure Metrologie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43557636","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}
P. Hakaew, Piyapat Panmuang, P. Prabpal, C. Photong
This paper is present an application of multi-frequency alternating current source that can be adjust the frequency from 1 Hz to 1 kHz for vertical electrical sounding (VES) on soil resistivity investigations. Researchers have used the four-point electrodes array method for resistivity method in laboratory and field trial of soil resistivity measurements. The result in laboratory found that in each frequency of current source has significate influence on the homogeneous soil resistivity. It was shown that the implemented equipment can be used to measure the soil resistivity as required. In field trial the soil resistivity was investigated by the implemented equipment feeding the rectangular wave current through two current electrodes on the subsurface soil which embedded in the non-homogeneous soil in the field work. The current source can be scaled and frequency adjusted at 50 Hz, 100 Hz, 200 Hz, 500 Hz and 1 kHz, respectively. The subsurface field have repeated tests 30 times in each frequency by compared with standard resistivity measurement equipment. The result found that the non-homogeneous apparent soil resistivity can be investigated and at the frequency of 100 Hz is close to the standard tool.
{"title":"An Application of Multi-Frequency Alternating Current Source for VES on Soil Resistivity Measurement and Investigation","authors":"P. Hakaew, Piyapat Panmuang, P. Prabpal, C. Photong","doi":"10.18280/i2m.210206","DOIUrl":"https://doi.org/10.18280/i2m.210206","url":null,"abstract":"This paper is present an application of multi-frequency alternating current source that can be adjust the frequency from 1 Hz to 1 kHz for vertical electrical sounding (VES) on soil resistivity investigations. Researchers have used the four-point electrodes array method for resistivity method in laboratory and field trial of soil resistivity measurements. The result in laboratory found that in each frequency of current source has significate influence on the homogeneous soil resistivity. It was shown that the implemented equipment can be used to measure the soil resistivity as required. In field trial the soil resistivity was investigated by the implemented equipment feeding the rectangular wave current through two current electrodes on the subsurface soil which embedded in the non-homogeneous soil in the field work. The current source can be scaled and frequency adjusted at 50 Hz, 100 Hz, 200 Hz, 500 Hz and 1 kHz, respectively. The subsurface field have repeated tests 30 times in each frequency by compared with standard resistivity measurement equipment. The result found that the non-homogeneous apparent soil resistivity can be investigated and at the frequency of 100 Hz is close to the standard tool.","PeriodicalId":38637,"journal":{"name":"Instrumentation Mesure Metrologie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41484269","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}
Dastan T. Janteliyev, Tair D. Julamanov, Bekzat Rsymbetov, Azamat Kaldybekov, Yulduz Allaberganova
Increasing the level of efficiency of land use management of pasture lands is one of the most important modern problems in the context of the agro-industrial policy of Kazakhstan. Using the method of content analysis of scientific literature, the authors analyze the utilization state of the unmanned aerial vehicles in agriculture, as well as the possibilities of their use for monitoring pasture lands. The authors assess the possible economic benefit of using this technology for land management. To assess the feasibility of using unmanned aerial vehicles for monitoring pasture lands, a SWOT analysis is conducted. The results of the study allow concluding that using unmanned aerial vehicles for monitoring pasture lands leads to an increase in the level of land use management by providing a wide range of opportunities and achieving an economic benefit for all agricultural production entities.
{"title":"Increasing the Level of Management Efficiency: Using Unmanned Aerial Vehicles for Monitoring Pasture Lands","authors":"Dastan T. Janteliyev, Tair D. Julamanov, Bekzat Rsymbetov, Azamat Kaldybekov, Yulduz Allaberganova","doi":"10.18280/i2m.210204","DOIUrl":"https://doi.org/10.18280/i2m.210204","url":null,"abstract":"Increasing the level of efficiency of land use management of pasture lands is one of the most important modern problems in the context of the agro-industrial policy of Kazakhstan. Using the method of content analysis of scientific literature, the authors analyze the utilization state of the unmanned aerial vehicles in agriculture, as well as the possibilities of their use for monitoring pasture lands. The authors assess the possible economic benefit of using this technology for land management. To assess the feasibility of using unmanned aerial vehicles for monitoring pasture lands, a SWOT analysis is conducted. The results of the study allow concluding that using unmanned aerial vehicles for monitoring pasture lands leads to an increase in the level of land use management by providing a wide range of opportunities and achieving an economic benefit for all agricultural production entities.","PeriodicalId":38637,"journal":{"name":"Instrumentation Mesure Metrologie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43929716","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}
In this research, the time series were analysed for four gauges (Mosul, Baghdad, Kut, and Husayabah) using autoregressive (AR) models with constant and periodic autoregressive coefficients. It was found that the best model for Mosul, Baghdad, and Husaybah gauges is AR (2) with periodic autoregressive coefficients, while the best model for the Kut gauge was AR (2) with constant autoregressive coefficients. The test was also suggested to determine the most appropriate model based on the values of autocorrelation of residuals (independent normal variable) and it was compared with the drawings of correlograms of autocorrelation of residuals rk(ξ) and with two tests: the AIC test and the portmanteau lack test. It was concluded that the suggested test was more accurate and more reliable.
{"title":"New Statistical Test to Determine the Best Model for Forecasting Water Discharge Data: Tigris and Euphrates Rivers in Iraq as a Study Case","authors":"A. Naser, W. A. Abidalla","doi":"10.18280/i2m.210205","DOIUrl":"https://doi.org/10.18280/i2m.210205","url":null,"abstract":"In this research, the time series were analysed for four gauges (Mosul, Baghdad, Kut, and Husayabah) using autoregressive (AR) models with constant and periodic autoregressive coefficients. It was found that the best model for Mosul, Baghdad, and Husaybah gauges is AR (2) with periodic autoregressive coefficients, while the best model for the Kut gauge was AR (2) with constant autoregressive coefficients. The test was also suggested to determine the most appropriate model based on the values of autocorrelation of residuals (independent normal variable) and it was compared with the drawings of correlograms of autocorrelation of residuals rk(ξ) and with two tests: the AIC test and the portmanteau lack test. It was concluded that the suggested test was more accurate and more reliable.","PeriodicalId":38637,"journal":{"name":"Instrumentation Mesure Metrologie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42091678","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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