International Journal of Advanced Chemistry最新文献

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Bioactive composition and TLC profile data on PAX herbal health tea and PAX herbal diatea PAX草药保健茶和PAX草药茶的生物活性成分及薄层色谱谱数据
International Journal of Advanced Chemistry Pub Date : 2022-08-27 DOI: 10.14419/ijac.v10i2.32112
Tunde Ayobami Owolabi, E. Amodu
{"title":"Bioactive composition and TLC profile data on PAX herbal health tea and PAX herbal diatea","authors":"Tunde Ayobami Owolabi, E. Amodu","doi":"10.14419/ijac.v10i2.32112","DOIUrl":"https://doi.org/10.14419/ijac.v10i2.32112","url":null,"abstract":"Background: The phytoconstituents of herbal drugs are largely influenced by the quality control system used during and post-production processes including the handling of such products. Thin Layer Chromatography is one of such quality control parameters that demonstrate uniqueness and uniformity between various substances, serving as an identity for such substances.  Pax Herbal Health tea (PHT) and Pax Herbal Diatea (PDT) are polyherbal drugs, PHT is used as a tonic for general wellness, while, PDT is used in the management and treatment of diabetes. This study evaluated the different phytoconstituents present and developed Thin-layer chromatography (TLC) fingerprint profiles for PHT and PDT to serve as quality control checks during the production for consistency and market uniqueness after production.Material and Methods: Qualitative phytochemical and chromatographic analyses were carried out using standard methods.Results: The phyto-screening revealed the presence of Alkaloid, Flavonoid, Tanin, Terpenoids, Reducing sugar, Steroid, and Cardiac glycoside in PHT while, Saponin, Tanin, Steroids, Reducing sugar, Flavonoid, and Terpenoids were observed in PDT. The TLC finger-print chromatograms of PHT after development with n-Hexane:Ethyl acetate (3:2) showed four distinct components under ultraviolet light at 365 nm, and three spots when sprayed with 20% methanolic sulphuric under visible light, while, PDT developed in n-Hexane:ethyl acetate:methanol (2.5:2:0.5) revealed three fluorescent components at 365 nm and four components after sulphuric acid treatment.Conclusion: From this present study, identity cards have been designed for PHT and PDT through bioactive composition and TLC profiles which can be used in accessing the quality and consistency of the herbal drugs.  ","PeriodicalId":13723,"journal":{"name":"International Journal of Advanced Chemistry","volume":"228 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83793312","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 simple water treatment procedure using a moringa activated two-tier filtration and Nano-silver impregnated ceramic pot system 一个简单的水处理程序使用辣木活化双层过滤和纳米银浸渍陶瓷锅系统
International Journal of Advanced Chemistry Pub Date : 2022-07-17 DOI: 10.14419/ijac.v10i2.32081
Timothy M. Akpomie, S. P. I Ogah, Wombo Ngunan Patience, Samuel Pheobe Sorphy, Labaran Lawrencia, Okewu E. Jonathan, Ohiobo Amos Edekioyaihegbo
{"title":"A simple water treatment procedure using a moringa activated two-tier filtration and Nano-silver impregnated ceramic pot system","authors":"Timothy M. Akpomie, S. P. I Ogah, Wombo Ngunan Patience, Samuel Pheobe Sorphy, Labaran Lawrencia, Okewu E. Jonathan, Ohiobo Amos Edekioyaihegbo","doi":"10.14419/ijac.v10i2.32081","DOIUrl":"https://doi.org/10.14419/ijac.v10i2.32081","url":null,"abstract":"This study was aimed at investigating the effectiveness of a customized ceramic pot treated with moringa oleifera and coated with silver sulphate solution for domestic water treatment. The customized pots were made by combining clay with sawdust at different ratios of 10:90, 20:80, 30:70, 40:60 and 50:50 respectively then coated with colloidal silver. The results obtained from all filtration pots indicated a 100% removal of coliform bacteria and Escherichia coli and were thus suitable for deployment in drinking water treatment. All ratios of the filtration pots were found to be effective, however, the 60:40 was found to be more practicable because of its higher filtration rate. Additionally, it was noted that the various filtration pots were very effective in lowering the higher values of the physicochemical parameters of pH, TS, TDS, TSS and turbidity as compared to the values of the world health organization (WHO) standard. This filtration method was however, not very effective in the reduction of the elemental concentration of the respective raw water samples. Overall, the results obtained encouraged the use of the two-tier filtration system especially in rural and developing areas where sophisticated dosing equipment or appropriate dose of the moringa oleifera is not required as different dosages were all effective and did not pose any undesirable effect on the physicochemical and elemental composition of the treated water samples.  ","PeriodicalId":13723,"journal":{"name":"International Journal of Advanced Chemistry","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86259560","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
The utilization of moringa (moringa oleifera) seed powder as a biocoagulant and flocculant in waste water treatment coal mining industry 辣木籽粉作为生物混凝剂和絮凝剂在煤矿废水处理中的应用
International Journal of Advanced Chemistry Pub Date : 2022-06-29 DOI: 10.14419/ijac.v10i1.32068
M. –, Legiso ., M. .
{"title":"The utilization of moringa (moringa oleifera) seed powder as a biocoagulant and flocculant in waste water treatment coal mining industry","authors":"M. –, Legiso ., M. .","doi":"10.14419/ijac.v10i1.32068","DOIUrl":"https://doi.org/10.14419/ijac.v10i1.32068","url":null,"abstract":"Mineralogically, acid mine drainage consists of minerals such as silica, iron silicate, magnesium, sodium, potassium and sulfide. These minerals can undergo oxidation (especially pyrite oxidation) to form acidic salts with a pH of 2.8-3.4. Moringa seed powder activity test were performed by adding 30% H2O2 to coal waste water treatment; Moringa seed powder was added to 2 L of coal waste water and stirred for 50, 100, 150, 200, and 250 minutes. Observations were analyzed using the AAS (Atomic Absorption Spectofotometry) to measure the quality of degraded waste water and X-Ray Diffraction (XRD). The results showed that the pH value reached 7.6 in the addition of H2O2 at the mixing time of 250 minutes, the TSS level reached 0 at the stirring period of 250 minutes without the addition of Moringa oleifera powder, while the addition of H2O2 and Moringa oleifera seed powder decreased heavy metals with an average of 69.06%at the stirring period of 100 minutes.  ","PeriodicalId":13723,"journal":{"name":"International Journal of Advanced Chemistry","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80051386","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
Mechanical and thermal properties versus effective cubic lattice constant in Cu2-II-IV-VI4 quaternary compounds Cu2-II-IV-VI4季元化合物的力学和热性能与有效立方晶格常数的关系
International Journal of Advanced Chemistry Pub Date : 2022-06-08 DOI: 10.14419/ijac.v10i1.32053
Marouane Djellal, Aymen Mebarki, Abdelfateh Benmakhlouf, S. Daoud
{"title":"Mechanical and thermal properties versus effective cubic lattice constant in Cu2-II-IV-VI4 quaternary compounds","authors":"Marouane Djellal, Aymen Mebarki, Abdelfateh Benmakhlouf, S. Daoud","doi":"10.14419/ijac.v10i1.32053","DOIUrl":"https://doi.org/10.14419/ijac.v10i1.32053","url":null,"abstract":"The present work aims to study the dependence of the bulk modulus B and the Debye temperature θD with the effective cubic lattice constant aeff of some Cu2-II-IV-VI4 compounds. We are also studied the correlation between the bulk modulus B, the Debye temperature θD, the microhardness H and the melting point Tm.The fits of the data of the bulk modulus B and the Debye temperature θD versus the effective cubic lattice constant aeff show that B of Cu2-II-IV-VI4 semiconducting materials decreases almost linearly with increase of the effective cubic lattice constant aeff, while that of Debye Temperature θD decreases exponentially with a rising of the effective cubic lattice constant aeff. The coefficients of the correlation were found at around -0.78 for the bulk modulus B, and at around -0.94 for the Debye temperature, respectively.For the bulk modulus B, the best fit was obtained using the following expression: B = - 596.52 aeff + 393.4, where B is expressed in GPa, and aeff in nm, while that of θD is: θD = 165.46 + 3.8 exp (-57.2 aeff), respectively. The average error on the estimation of B was found at around 10%, while that on the estimation of θD is only around 4.5%, respectively. Our expressions perhaps used with high accurate to predict the bulk modulus B and the Debye temperature θD of other quaternary Cu2-II-IV-VI4 semiconducting materials.","PeriodicalId":13723,"journal":{"name":"International Journal of Advanced Chemistry","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79299203","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
Crystal density of CaS under pressure up to 40 GPa CaS在压力下的晶体密度高达40gpa
International Journal of Advanced Chemistry Pub Date : 2022-06-07 DOI: 10.14419/ijac.v10i1.32063
N. Bioud, R. Mezouar
{"title":"Crystal density of CaS under pressure up to 40 GPa","authors":"N. Bioud, R. Mezouar","doi":"10.14419/ijac.v10i1.32063","DOIUrl":"https://doi.org/10.14419/ijac.v10i1.32063","url":null,"abstract":"Based on the experimental ground state parameters reported in the literature (Luo et al., Phys. Rev. B 50 (1994)16232-16237); in the present work we reproduce the variation in the volume with the pressure up to 40 GPa for calcium sulfide (CaS) compound, which criticized in cubic rock-salt structure. We used two different models of equation of state (EOS); the fist is the model of Vinet, while the second one is the EOS Murnaghan’s model. We studied also the effect of the pressure on the crystal density. We established some analytical models relating the volume with the pressure, as well as the crystal density with the pressure.Finally, we predicted the melting point, the Debye temperature and the sound velocity of CaS material, which are 1202.2 K, 423.7 K, and 4049.5 m/s, respectively.   ","PeriodicalId":13723,"journal":{"name":"International Journal of Advanced Chemistry","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81841249","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: 1
Proximate, minerals and anti-nutritional composition of daniellia oliveri (maje) tender leaves daniellia oliveri (maje)嫩叶的近似、矿物质和抗营养成分
International Journal of Advanced Chemistry Pub Date : 2022-06-07 DOI: 10.14419/ijac.v10i1.32055
A. Muhammad, Abubakar Umar Birnin-Yauri, Cosmos Moki Elinge, Ayodeji Rapheal Ige
{"title":"Proximate, minerals and anti-nutritional composition of daniellia oliveri (maje) tender leaves","authors":"A. Muhammad, Abubakar Umar Birnin-Yauri, Cosmos Moki Elinge, Ayodeji Rapheal Ige","doi":"10.14419/ijac.v10i1.32055","DOIUrl":"https://doi.org/10.14419/ijac.v10i1.32055","url":null,"abstract":"The Nutritional and anti-nutritional composition of tender leaves of Daniellia oliveri were analyzed in this study. The results of the proximate analysis were as follows, moisture content (78.67±2.31%), ash (4.67±0.29%), crude lipid (2.67±0.29%), crude protein (7.23±0.13%), crude fibre (2.33±0.29%), available carbohydrate (4.43±2.59%) and the energy value (70.67±12.45 kJ/kg). In elemental analysis, potassium has the highest concentration (3766.67±57.74 mg/100g), zinc (0.1502±0.00020 mg/100 g) is the lowest and lead (0.2352±0.00015 mg/100g). The anti-nutritional parameters analyzed includes; phytate (6.7592 mg/100g), oxalate (0.0023mg/100g), saponin (1.20mg/100g), tannin (430.80mg/100 g), hydrocyanic acid (122.73 mg/100g). The anti-nutrients to nutrients ratio show the bioavailability of some essential minerals, with the exception of [cyanides] and [tannin] in the tender leaves. These reach significant levels and are expected to reduce bioavailability of iron, magnesium and zinc in tender leaves.  ","PeriodicalId":13723,"journal":{"name":"International Journal of Advanced Chemistry","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86270549","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: 1
Effect of process variables on green synthesis of copper nanoparticles from solanum lycopersicum and Psidium guajava and its antibacterial activities 工艺参数对番茄茄和瓜爪哇番石榴绿色合成纳米铜的影响及其抗菌活性研究
International Journal of Advanced Chemistry Pub Date : 2022-05-15 DOI: 10.14419/ijac.v10i1.32045
A. Muhammad, A. Umar, A. U Birnin-Yauri, H. Abubakar Sanni, Ige A.R, C. M Elinge
{"title":"Effect of process variables on green synthesis of copper nanoparticles from solanum lycopersicum and Psidium guajava and its antibacterial activities","authors":"A. Muhammad, A. Umar, A. U Birnin-Yauri, H. Abubakar Sanni, Ige A.R, C. M Elinge","doi":"10.14419/ijac.v10i1.32045","DOIUrl":"https://doi.org/10.14419/ijac.v10i1.32045","url":null,"abstract":"In this study copper nanoparticles were synthesized using extracts from Solanum lycopersicum (Tomato) and Psidium guajava (Guava) fruits. The synthesis process optimized experimental conditions such as temperature, concentration of precursor and amount of fruit extract. The synthesized nanoparticles were characterized using Uv-vis, FTIR, XRD, SEM and EDX techniques. Copper nanoparticles synthesized with tomato and guava extracts had diameters of 52nm and 25nm, respectively. The antibacterial activity of the synthesized nanoparticles was tested using pathogenic bacteria; Escherichia coli and Staphylococcus aureus and their results revealed that copper nanoparticles are promising antibacterial agents. The optimum conditions for the synthesis were 0.05 M, 80 oC and 10cm3 for concentration, temperature and volume of fruit extract, respectively.   ","PeriodicalId":13723,"journal":{"name":"International Journal of Advanced Chemistry","volume":"88 9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84059514","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
Analysis of antibacterial and antioxidant potential of commercial essential oils from Tuzla markets 图兹拉市售商品精油抑菌和抗氧化潜力分析
International Journal of Advanced Chemistry Pub Date : 2022-04-27 DOI: 10.14419/ijac.v10i1.32019
Emir Horozić, Merima Imamović, Edita Bjelić, Vedad Salković, Enida Karić, Darja Husejnagić, Nihada Ahmetović
{"title":"Analysis of antibacterial and antioxidant potential of commercial essential oils from Tuzla markets","authors":"Emir Horozić, Merima Imamović, Edita Bjelić, Vedad Salković, Enida Karić, Darja Husejnagić, Nihada Ahmetović","doi":"10.14419/ijac.v10i1.32019","DOIUrl":"https://doi.org/10.14419/ijac.v10i1.32019","url":null,"abstract":"Essential oils are natural products that contain a wide range of biologically active organic compounds. Therefore, they are intensively researched as potential antioxidant, antimicrobial and antitumor preparations, which could to some extent replace the classic synthetic drugs used to treat various pathological conditions. In this paper, the antioxidant and antibacterial activity of selected essential oils available in local markets in the area of Tuzla was examined. The efficiency of neutralization of free radicals was determined by spectrophotometric method, while the antibacterial potential was determined by diffusion technique on reference bacterial strains. For essential oils that showed antibacterial activity, the minimum inhibitory concentration (MIC) was determined using a dilution technique. The results showed that commercial essential oils have a high ability to neutralize DPPH radicals in vitro. The diffusion technique confirmed the high antibacterial activity for the essential oils of tea tree, eucalyptus, immortelle and wormwood, while the essential oils of lemon and cedar showed extremely weak antibacterial activity.  ","PeriodicalId":13723,"journal":{"name":"International Journal of Advanced Chemistry","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81647060","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
Ultrasonic velocities and refractive indies of binary liquid mixtures of 1, 4-dioxane with 1 – alkanols (C3, C4, C6 , C8 ) at 303.15 K 1,4 -二恶烷与1 -烷醇(C3, C4, C6, C8)二元液体混合物在303.15 K下的超声速度和折射系数
International Journal of Advanced Chemistry Pub Date : 2022-01-02 DOI: 10.14419/ijac.v9i2.31715
Seema Agarwa, Dhirendra Kumar Sharma
{"title":"Ultrasonic velocities and refractive indies of binary liquid mixtures of 1, 4-dioxane with 1 – alkanols (C3, C4, C6 , C8 ) at 303.15 K","authors":"Seema Agarwa, Dhirendra Kumar Sharma","doi":"10.14419/ijac.v9i2.31715","DOIUrl":"https://doi.org/10.14419/ijac.v9i2.31715","url":null,"abstract":"Density (ρ), ultrasonic velocities (u) and refractive indices (n) of the binary mixture between cyclic ether with 1-propanol, 1-butanol, 1-hexanol, 1-octanol for the entire concentration range have been measured at 303.15K, furthermore, deviation in refractive indies from ideal mixture, molar refraction, deviation in molar refraction from ideal values for these mixture has also been evaluated. The deviations from ideality of the acoustical parameters are explained on the basis of molecular interaction between the component molecules in these binary liquid mixtures. The molecular refraction (Rm), excess molecular refraction ( ) and excess molar volume (VE) were calculated from the experimental data. The results are discussed in term of molecular interactions between the components of the binary mixtures.   ","PeriodicalId":13723,"journal":{"name":"International Journal of Advanced Chemistry","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81798149","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
Anionic surfactant adsorption in detergent sewage with cation ion exchange method 阴离子表面活性剂在洗涤污水中的阳离子交换吸附
International Journal of Advanced Chemistry Pub Date : 2021-12-16 DOI: 10.14419/ijac.v9i2.31848
Dewi Fernianti, W. -
{"title":"Anionic surfactant adsorption in detergent sewage with cation ion exchange method","authors":"Dewi Fernianti, W. -","doi":"10.14419/ijac.v9i2.31848","DOIUrl":"https://doi.org/10.14419/ijac.v9i2.31848","url":null,"abstract":"Surfactant is one of chemical substances added in detergent. The surfactant type added in detergent is anionic surfactant, namely Alkyl Benzene Sulfonate (ABS). Alkyl Benzene Sulfonate is a slow-degradable chemical substance due to branched chain in its structure, which causes low oxygen supply from the air due to foam covering the water surface. This condition can cause a dangerous impact for the organisms in the water.This study aimed to adsorb the anionic surfactant contained in detergent sewage using cation exchange resin. Before the adsorption process, cation resin regeneration process was performed following the standard operational procedures of PT. Pertamina RU III, Plaju using 4% H2SO4solution at regeneration time of 45 minutes. Surfactant adsorption process occurred at room temperature with resin mass variables of 50, 100, and 150 g and contact time of 5, 10, 15, 20, and 25 minutes. Furthermore, the surfactant content was analyzed using a spectrophotometer at 652 nm wavelength. The study analysis results showed that the adsorption process of anionic surfactant in the detergent sewage with cation ion exchange method at 50 g resin in 5 – 25 minutes obtained a resin adsorption capacity of 0.72 g, while 150 g resin at 5 – 25 minutes only obtained a resin adsorption capacity of 0.18 g.The best adsorption percentage was achieved from 150 g resin at a contact time of 25 minutes due to adsorbing the anionic surfactant up to 100%. Meanwhile, the closest equation assessment approach was presented fromthe Langmuir adsorption isotherm model by gaining a linear graphic at R2 = 0.9946.   ","PeriodicalId":13723,"journal":{"name":"International Journal of Advanced Chemistry","volume":"90 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75174731","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
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