Pub Date : 2023-03-17DOI: 10.24191/srj.v20i1.21127
Zulaihani Ahmad
Epoxy resin was incorporated with microcrystalline cellulose (MCC) for the production of the primer coating. Various sonication times were applied for the purpose of determining the ideal sonication period that provides the best barrier performance. The coatings were also added with various 3-Aminopropyltriethoxysilane (APTES) loadings in order to improve the mechanical and corrosion resistance properties. Fourier Transform Infrared (FTIR) Spectroscopy analysis was carried out to examine the chemical interactions and diffusion between MCC, APTES, and epoxy resin. After nine days of immersion in a 5% sodium chloride (NaCl) solution, the ideal sonication period was found to be 30 minutes, with no corrosion occurring aggressively and no flaking or blistering appears on the coating. The anti-corrosive qualities of the primer coating were eventually enhanced by the addition of MCC modified with APTES. The addition of APTES had improved the interaction between MCC and epoxy, hence achieving better compatibility and promoting a uniformly dispersed MCC throughout the epoxy resin matrix. The Tafel polarization results found that the addition of APTES up to 9% gave the lowest corrosion rate at 0.004 mm/year and the highest polarization resistances at 198.69 kꭥ. This is explained by the fact that enough MCC-APTES can serve as a physical barrier and obstruct the paths used by corrosive agent to diffuse. Therefore, the MCC-Epoxy treated APTES coupling agent for metal corrosion protection has thus been successfully created.
{"title":"Epoxy Primer Coating Filled Microcrystalline Cellulose Treated with Silane Coupling Agent on Metal Substrate","authors":"Zulaihani Ahmad","doi":"10.24191/srj.v20i1.21127","DOIUrl":"https://doi.org/10.24191/srj.v20i1.21127","url":null,"abstract":"Epoxy resin was incorporated with microcrystalline cellulose (MCC) for the production of the primer coating. Various sonication times were applied for the purpose of determining the ideal sonication period that provides the best barrier performance. The coatings were also added with various 3-Aminopropyltriethoxysilane (APTES) loadings in order to improve the mechanical and corrosion resistance properties. Fourier Transform Infrared (FTIR) Spectroscopy analysis was carried out to examine the chemical interactions and diffusion between MCC, APTES, and epoxy resin. After nine days of immersion in a 5% sodium chloride (NaCl) solution, the ideal sonication period was found to be 30 minutes, with no corrosion occurring aggressively and no flaking or blistering appears on the coating. The anti-corrosive qualities of the primer coating were eventually enhanced by the addition of MCC modified with APTES. The addition of APTES had improved the interaction between MCC and epoxy, hence achieving better compatibility and promoting a uniformly dispersed MCC throughout the epoxy resin matrix. The Tafel polarization results found that the addition of APTES up to 9% gave the lowest corrosion rate at 0.004 mm/year and the highest polarization resistances at 198.69 kꭥ. This is explained by the fact that enough MCC-APTES can serve as a physical barrier and obstruct the paths used by corrosive agent to diffuse. Therefore, the MCC-Epoxy treated APTES coupling agent for metal corrosion protection has thus been successfully created.","PeriodicalId":21751,"journal":{"name":"Scientific Research Journal","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134963655","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 : 2023-03-17DOI: 10.24191/srj.v20i1.19091
The addition of rare earth, zinc, and borate in tellurite glass was found can enhance the glass properties and overcome its existing weaknesses. These include improving the glass forming ability and stability. In this study, cerium-doped zinc borotellurite glasses were produced using conventional melt-quenching technique and the optical properties of the glasses were investigated. UV-VIS spectra show that the absorption edge shifted to a higher wavelength with CeO2 addition from 0 until 0.05 mol. Consequently, the direct and indirect optical band gap was found to decrease from 3.60 to 2.07 eV and 3.28 to 1.46 eV respectively. On the contrary, the refractive index was found to increase from 2.326 to 3.017. This is attributed to the presence of cerium ions and the formation of non-bridging oxygens. Besides that, the Urbach energy found to be maximum at 0.02 mol CeO2 and minimum at 0.00 mol CeO2. This indicates that there are some structural disorders occur in the glass network as CeO2 introduced into the system. The molar refraction, molar polarizability, oxide ion polarizability and optical basicity exhibited similar trend of data as the CeO2 content was increased which signifies the relation of these parameters. Meanwhile, the metallization criterion is reported to be decreased, indicating that the glass sample become more metallized with the addition of cerium oxide.
{"title":"Optical Properties of Cerium Oxide Doped Zinc Borotellurite Glass","authors":"","doi":"10.24191/srj.v20i1.19091","DOIUrl":"https://doi.org/10.24191/srj.v20i1.19091","url":null,"abstract":"The addition of rare earth, zinc, and borate in tellurite glass was found can enhance the glass properties and overcome its existing weaknesses. These include improving the glass forming ability and stability. In this study, cerium-doped zinc borotellurite glasses were produced using conventional melt-quenching technique and the optical properties of the glasses were investigated. UV-VIS spectra show that the absorption edge shifted to a higher wavelength with CeO2 addition from 0 until 0.05 mol. Consequently, the direct and indirect optical band gap was found to decrease from 3.60 to 2.07 eV and 3.28 to 1.46 eV respectively. On the contrary, the refractive index was found to increase from 2.326 to 3.017. This is attributed to the presence of cerium ions and the formation of non-bridging oxygens. Besides that, the Urbach energy found to be maximum at 0.02 mol CeO2 and minimum at 0.00 mol CeO2. This indicates that there are some structural disorders occur in the glass network as CeO2 introduced into the system. The molar refraction, molar polarizability, oxide ion polarizability and optical basicity exhibited similar trend of data as the CeO2 content was increased which signifies the relation of these parameters. Meanwhile, the metallization criterion is reported to be decreased, indicating that the glass sample become more metallized with the addition of cerium oxide.","PeriodicalId":21751,"journal":{"name":"Scientific Research Journal","volume":"262 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134963649","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 : 2023-03-17DOI: 10.24191/srj.v20i1.20962
Sharifah Nafisah Syed Ismail
This study investigated the potential of graphene for improvement of properties of thermoplastic polyurethane (PU) composites in sight of thermal property, electrical conductivity, hardness, gel content and bonding spectra (FTIR). Polyurethane/graphene (PU/G) composites were synthesized by exfoliating graphene with DMF and then blending it with PEG and IPDI via in-situ addition polymerization with varying graphene concentrations (0–0.18 wt %), resulting in uniform dispersion and partial exfoliation of graphene-sheets in PU matrix. The PU/G synthesis was analyzed by IR spectra analysis, which revealed apparent urethane connections and hydrogen bonding. Glass transition temperature (Tg) property of PU exceeded by around 55 % with the addition of graphene, and it improved steadily as graphene concentration increased. 7B pencil hardness replicated the hardness of the PU/G2, indicating an improvement in hardness. The inclusion of graphene had less of an influence on the gel content of PU, with a proof showing that all of the results gel content was between 80 – 90 %. With the addition of 0.088 % graphene to PU, the electric conductivity improved to 76 %. The composite's conductivity was improved due to graphene's capacity to conduct electricity and the covalent link between PU and graphene.
{"title":"Fabrication and Characterization of Polyurethane/Graphene Composite: Study on Conductivity and Thermal Properties","authors":"Sharifah Nafisah Syed Ismail","doi":"10.24191/srj.v20i1.20962","DOIUrl":"https://doi.org/10.24191/srj.v20i1.20962","url":null,"abstract":"This study investigated the potential of graphene for improvement of properties of thermoplastic polyurethane (PU) composites in sight of thermal property, electrical conductivity, hardness, gel content and bonding spectra (FTIR). Polyurethane/graphene (PU/G) composites were synthesized by exfoliating graphene with DMF and then blending it with PEG and IPDI via in-situ addition polymerization with varying graphene concentrations (0–0.18 wt %), resulting in uniform dispersion and partial exfoliation of graphene-sheets in PU matrix. The PU/G synthesis was analyzed by IR spectra analysis, which revealed apparent urethane connections and hydrogen bonding. Glass transition temperature (Tg) property of PU exceeded by around 55 % with the addition of graphene, and it improved steadily as graphene concentration increased. 7B pencil hardness replicated the hardness of the PU/G2, indicating an improvement in hardness. The inclusion of graphene had less of an influence on the gel content of PU, with a proof showing that all of the results gel content was between 80 – 90 %. With the addition of 0.088 % graphene to PU, the electric conductivity improved to 76 %. The composite's conductivity was improved due to graphene's capacity to conduct electricity and the covalent link between PU and graphene.","PeriodicalId":21751,"journal":{"name":"Scientific Research Journal","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134963654","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 : 2023-03-17DOI: 10.24191/srj.v20i1.20669
Mohd Fauzi Abdullah
This study emphasizes the biomass waste which is dried guava leaves as a natural low-cost adsorbent precursor of activated carbon for methylene blue (MB) dye solution due to its high abundance and availability in Malaysia. MB dyes which were largely consumed by the textiles industry pose several hazardous complications on human health without proper wastewater treatment. Thus, adsorption for water treatment serves as a cost-effective method to adsorb the dyes using low-cost adsorbent from dried leaves biomass. The dried leaves underwent chemical activation with hydrochloric acid (HCl) with ratio 1:1 and were carbonized at 700 °C for an hour and then neutralized for characterization and batch adsorption study. The physicochemical properties of guava leaves HCl activated carbon (GL-HAC), was characterized using ash content, moisture content, bulk density and iodine number. Percentage yield of GL-HAC was apparently high at 89.90 %. The GL-HAC reported had relatively low percentage of ash content and moisture content. The bulk density of the activated carbon was also low at 1.6 g/mL. The iodine number was calculated at 339.9 mg/g. The pHPZC for GL-HAC was obtained at 4.3 indicating that this activated carbon is efficient for the removal of MB dye with the pH solution above the pHPZC value. The results of the FTIR study shows that the functional groups of hydroxyl, amine, carbonyl, and carboxylic acid are present in GL-HAC. Batch adsorption studies were carried out to determine the most favourable condition for the activated carbon to adsorb methylene blue dye. The operating variables studied were adsorbent dosage, initial pH of solution, initial dye concentration and contact time. The results revealed that the effect of initial concentration and contact time were directly proportional to the adsorption capacity of MB dyes on the activated carbon. Thus, this study has demonstrated the potential of dried guava leaves as low-cost precursor of activated carbon for the removal of MB dyes.
{"title":"Physicochemical and adsorption properties of guava leaves-activated carbon by hydrochloric acid on adsorption of methylene blue","authors":"Mohd Fauzi Abdullah","doi":"10.24191/srj.v20i1.20669","DOIUrl":"https://doi.org/10.24191/srj.v20i1.20669","url":null,"abstract":"This study emphasizes the biomass waste which is dried guava leaves as a natural low-cost adsorbent precursor of activated carbon for methylene blue (MB) dye solution due to its high abundance and availability in Malaysia. MB dyes which were largely consumed by the textiles industry pose several hazardous complications on human health without proper wastewater treatment. Thus, adsorption for water treatment serves as a cost-effective method to adsorb the dyes using low-cost adsorbent from dried leaves biomass. The dried leaves underwent chemical activation with hydrochloric acid (HCl) with ratio 1:1 and were carbonized at 700 °C for an hour and then neutralized for characterization and batch adsorption study. The physicochemical properties of guava leaves HCl activated carbon (GL-HAC), was characterized using ash content, moisture content, bulk density and iodine number. Percentage yield of GL-HAC was apparently high at 89.90 %. The GL-HAC reported had relatively low percentage of ash content and moisture content. The bulk density of the activated carbon was also low at 1.6 g/mL. The iodine number was calculated at 339.9 mg/g. The pHPZC for GL-HAC was obtained at 4.3 indicating that this activated carbon is efficient for the removal of MB dye with the pH solution above the pHPZC value. The results of the FTIR study shows that the functional groups of hydroxyl, amine, carbonyl, and carboxylic acid are present in GL-HAC. Batch adsorption studies were carried out to determine the most favourable condition for the activated carbon to adsorb methylene blue dye. The operating variables studied were adsorbent dosage, initial pH of solution, initial dye concentration and contact time. The results revealed that the effect of initial concentration and contact time were directly proportional to the adsorption capacity of MB dyes on the activated carbon. Thus, this study has demonstrated the potential of dried guava leaves as low-cost precursor of activated carbon for the removal of MB dyes.","PeriodicalId":21751,"journal":{"name":"Scientific Research Journal","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134963652","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 : 2023-03-17DOI: 10.24191/srj.v20i1.19056
Siti Hajar Mohmad Salleh
n solar systems, anti-reflective coatings are used to reduce reflection and increase efficiency. However, the front surface on the solar cells alone is not effective because most of the light from the sun is reflected and very less energy absorption into the solar cells occur. An anti-reflective coating (ARC) of a sufficient thickness can greatly reduce front surface reflectance. Nanoscale surface texturing, on the other hand, can efficiently capture a higher ratio of incident light to boost optical absorption. In this study, the light trapping scheme within the wavelength of 300 to 1200 nm was used to improve the overall efficiency of silicon solar cells. A thin layer of TiO2 and SiO2 anti-reflective coating with different thicknesses was stacked alternatingly due to their different refractive index with TiO2 having a high refractive index and SiO2 with a low refractive index. Solar irradiance spectrum AM1.5G at normal incidence was used in this present work. For the ray-tracing simulation, the front planar with multilayer ARC with different thicknesses were investigated to obtain the optimum value for optical properties and current density. All the four combination arrangements of SiO2 and TiO2 were evaluated and the maximum potential photocurrent density (Jmax) was calculated. The Jmax value of thin crystalline silicon, c-Si (without ARC) was 24.93 mA/cm2 and increased to 30.28 mA/cm2when ARC was used on the front surface. This represents an increasing of 21.46 % enhancement compared to the Jmax of the c-Si reference. Simulation of Anti-Reflective TiO2/SiO2 Coating for Silicon Photovoltaic Application by Ray TracingImran Al-Haqeem Bin Jaffar1, Siti Hajar Mohmad Salleh2*, Mohd Zaki Mohd Yusoff31,2Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Perlis, Campus Arau, 02600 Perlis, Malaysia3Faculty of Applied Science, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia*Corresponding author’s E-mail: sitiha2902@uitm.edu.myReceived: 08 August 2022 Accepted: 17 February 2023Online First: 17 March 2023
在太阳能系统中，使用抗反射涂层来减少反射并提高效率。然而，太阳能电池的前表面单独是无效的，因为大部分来自太阳的光被反射，很少有能量被吸收到太阳能电池中。足够厚度的减反射涂层可以大大降低前表面反射率。另一方面，纳米级表面纹理可以有效地捕获更高比例的入射光，从而提高光学吸收。在本研究中，为了提高硅太阳能电池的整体效率，采用了300 ~ 1200nm波长范围内的光捕获方案。由于TiO2和SiO2的折射率不同(TiO2折射率高，SiO2折射率低)，将厚度不同的薄层TiO2和SiO2交替堆叠。本研究采用正入射太阳辐照光谱AM1.5G。在光线追踪模拟中，研究了具有不同厚度的多层电弧的前平面，以获得光学性能和电流密度的最佳值。对SiO2和TiO2的四种组合方式进行了评价，并计算了最大电位光电流密度(Jmax)。薄晶硅c-Si(无电弧)的Jmax值为24.93 mA/cm2，在前表面加电弧后，Jmax值提高到30.28 mA/cm2。与c-Si参考的Jmax相比，增加了21.46%。通过光线追踪模拟硅光伏应用中的抗反射TiO2/SiO2涂层imran Al-Haqeem Bin Jaffar1, Siti Hajar mohammad salle2 *， Mohd Zaki Mohd Yusoff31,2马来西亚玛拉理工大学应用科学学院，Cawangan Perlis, Campus Arau, 02600 Perlis, Malaysia . 3马来西亚玛拉理工大学应用科学学院，40450 Shah Alam, Selangor, Malaysia*通讯作者E-mail: sitiha2902@uitm.edu.myReceived: 2022年8月8日接收:2023年2月17日在线第一:2023年3月17日
{"title":"Simulation of Anti-Reflective TiO2/SiO2 Coating for Silicon Photovoltaic Application by Ray Tracing","authors":"Siti Hajar Mohmad Salleh","doi":"10.24191/srj.v20i1.19056","DOIUrl":"https://doi.org/10.24191/srj.v20i1.19056","url":null,"abstract":"n solar systems, anti-reflective coatings are used to reduce reflection and increase efficiency. However, the front surface on the solar cells alone is not effective because most of the light from the sun is reflected and very less energy absorption into the solar cells occur. An anti-reflective coating (ARC) of a sufficient thickness can greatly reduce front surface reflectance. Nanoscale surface texturing, on the other hand, can efficiently capture a higher ratio of incident light to boost optical absorption. In this study, the light trapping scheme within the wavelength of 300 to 1200 nm was used to improve the overall efficiency of silicon solar cells. A thin layer of TiO2 and SiO2 anti-reflective coating with different thicknesses was stacked alternatingly due to their different refractive index with TiO2 having a high refractive index and SiO2 with a low refractive index. Solar irradiance spectrum AM1.5G at normal incidence was used in this present work. For the ray-tracing simulation, the front planar with multilayer ARC with different thicknesses were investigated to obtain the optimum value for optical properties and current density. All the four combination arrangements of SiO2 and TiO2 were evaluated and the maximum potential photocurrent density (Jmax) was calculated. The Jmax value of thin crystalline silicon, c-Si (without ARC) was 24.93 mA/cm2 and increased to 30.28 mA/cm2when ARC was used on the front surface. This represents an increasing of 21.46 % enhancement compared to the Jmax of the c-Si reference. Simulation of Anti-Reflective TiO2/SiO2 Coating for Silicon Photovoltaic Application by Ray TracingImran Al-Haqeem Bin Jaffar1, Siti Hajar Mohmad Salleh2*, Mohd Zaki Mohd Yusoff31,2Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Perlis, Campus Arau, 02600 Perlis, Malaysia3Faculty of Applied Science, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia*Corresponding author’s E-mail: sitiha2902@uitm.edu.myReceived: 08 August 2022 Accepted: 17 February 2023Online First: 17 March 2023","PeriodicalId":21751,"journal":{"name":"Scientific Research Journal","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134963648","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 : 2023-02-26DOI: 10.36719/2789-6919/17/16-18
S. Abdullayeva
{"title":"INCIDENTAL BACTERIAL IN HOUSE PLANTS AND FUNGAL DISEASES","authors":"S. Abdullayeva","doi":"10.36719/2789-6919/17/16-18","DOIUrl":"https://doi.org/10.36719/2789-6919/17/16-18","url":null,"abstract":"","PeriodicalId":21751,"journal":{"name":"Scientific Research Journal","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91240178","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 : 2023-02-26DOI: 10.36719/2789-6919/17/7-11
T. İbrahimova
{"title":"MONİTORİNQ TƏHSİLİN İDARƏ EDİLMƏSİNDƏ ƏSAS KOMPONENTLƏRDƏN BİRİ KİMİ","authors":"T. İbrahimova","doi":"10.36719/2789-6919/17/7-11","DOIUrl":"https://doi.org/10.36719/2789-6919/17/7-11","url":null,"abstract":"","PeriodicalId":21751,"journal":{"name":"Scientific Research Journal","volume":"375 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76610369","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 : 2023-02-26DOI: 10.36719/2789-6919/17/12-15
Tutu Əsayeva
{"title":"TƏRBİYƏ VƏ ŞƏXSİYYƏTİN İNKİŞAFI","authors":"Tutu Əsayeva","doi":"10.36719/2789-6919/17/12-15","DOIUrl":"https://doi.org/10.36719/2789-6919/17/12-15","url":null,"abstract":"","PeriodicalId":21751,"journal":{"name":"Scientific Research Journal","volume":"127 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84517664","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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