ADVANCES IN BASIC SCIENCE (ICABS 2019)最新文献

{"title":"Synthesis and optimization of ZnFe2O4/TiO2 nanocomposite","authors":"I. Vashistha, Sunil Rohilla","doi":"10.1063/1.5122518","DOIUrl":"https://doi.org/10.1063/1.5122518","url":null,"abstract":"Nanocomposite of ZnFe2O4/TiO2 was synthesized by sol-gel method. Fractional Factorial Design was used to investigate the effect of the process (synthesis) parameters like concentration of precursors and annealing temperature on the particle size of resultant composite. Response surface method (RSM) was used to investigate the design of the creation process and the statistical analysis of the effect of process parameters. The RSM results were then used as objective functions for optimization of the response parameters. In the experimental design, quadratic polynomial model was fitted to predict the response value and the best fitted linear model was statistically tested through analysis of variance (ANOVA). The model validity was analyzed through the analysis of residuals.Nanocomposite of ZnFe2O4/TiO2 was synthesized by sol-gel method. Fractional Factorial Design was used to investigate the effect of the process (synthesis) parameters like concentration of precursors and annealing temperature on the particle size of resultant composite. Response surface method (RSM) was used to investigate the design of the creation process and the statistical analysis of the effect of process parameters. The RSM results were then used as objective functions for optimization of the response parameters. In the experimental design, quadratic polynomial model was fitted to predict the response value and the best fitted linear model was statistically tested through analysis of variance (ANOVA). The model validity was analyzed through the analysis of residuals.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80508290","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}

{"title":"The morphological effect on structural and optical properties of ZnO nanostructure","authors":"Manoj Kumar, V. Lamba","doi":"10.1063/1.5122546","DOIUrl":"https://doi.org/10.1063/1.5122546","url":null,"abstract":"The morphological effects on structural and optical properties of ZnO nanostructure chemical bath deposition have been studied. The tin oxide substrate doped with Indium, on which ZnO nanostructures were evaporated were observed. These nanostructures were prepared in a growth solution and positioned in three distinct directions. From three distinct positioned ZnO nanostructures, three samples were taken and examined. The synthesized nanostructures and their morphological properties were studied. It was found that surface morphology was affected by the substrate positioned in growth solution. The structural and optical properties were calculated. In optical characteristics, the photoluminescence, Raman spectroscopy and optical density of the prepared ZnO device were calculated. It was observed that the morphological nanostructures affect the structural and optical properties of Schottky diode.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88266955","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}

{"title":"Study of DC electrical properties of iron oxide doped polyaniline","authors":"Smriti Sharma, S. Goyal, R. Pal","doi":"10.1063/1.5122551","DOIUrl":"https://doi.org/10.1063/1.5122551","url":null,"abstract":"The oxidative polymerization process has been used to prepare composites of Polyaniline/iron oxide (PANI/Fe2O3). For synthesis of these composites, Polyaniline using different amounts (10, 20, 30, 40, 50 wt %) of the Fe2O3 with oxidant ammonium persulphate have been used. Temperature dependent dc conductivity measurement is done in temperature range upto 120°C using Mott’s model. Mott’s model explains the conduction by hopping process in disordered semiconducting systems and match well with the experimental data.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90699886","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}

{"title":"Changes in the thermodynamic properties of 4-n(hexyloxy) benzoic acid by Li+3 ion beam irradiation","authors":"Satendra Kumar, R. Verma, R. Dhar, A. Tripathi","doi":"10.1063/1.5122331","DOIUrl":"https://doi.org/10.1063/1.5122331","url":null,"abstract":"Li ion beam irradiation persuaded modifications in the thermodynamic properties of liquid crystalline material 4-n (hexyloxy) benzoic acid (HOBA) have been investigated. The irradiation has been carried out by a pelletron beam using 3 nA current at fluences (1010, 1011, 1012, 1013 ions∕cm2) at room temperature in the crystalline phase of the material. The pure and irradiated liquid crystalline material has a phase sequence of I-N-Cr. The pure and irradiated materials were explored using differential scanning calorimeter (DSC). Thermodynamic studies of the pure and irradiated materials reveal that all the transition temperature is depressed as compared to those of pure materials by the Li ion beam irradiation. The average transition enthalpies and entropies of the irradiated materialare increased as compared to those of purematerial.Li ion beam irradiation persuaded modifications in the thermodynamic properties of liquid crystalline material 4-n (hexyloxy) benzoic acid (HOBA) have been investigated. The irradiation has been carried out by a pelletron beam using 3 nA current at fluences (1010, 1011, 1012, 1013 ions∕cm2) at room temperature in the crystalline phase of the material. The pure and irradiated liquid crystalline material has a phase sequence of I-N-Cr. The pure and irradiated materials were explored using differential scanning calorimeter (DSC). Thermodynamic studies of the pure and irradiated materials reveal that all the transition temperature is depressed as compared to those of pure materials by the Li ion beam irradiation. The average transition enthalpies and entropies of the irradiated materialare increased as compared to those of purematerial.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"100 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85869646","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}

{"title":"Silk sericin a bio-template for the synthesis of silver nanoparticles and characterization","authors":"M. Shilpa, K. Harisha, S. Asha, N. Parushuram, R. Ranjana, Y. Sangappa","doi":"10.1063/1.5122573","DOIUrl":"https://doi.org/10.1063/1.5122573","url":null,"abstract":"The research paper describes the in situ synthesis of silver nanoparticles (AgNPs) using Bombyxmorisilk sericin (SS). The formation of silver nanoparticles in the SS solution was confirmed by using UV-Visible spectroscopy (UV-Vis), X-ray diffraction measurements (XRD), transmission electron microscopy (TEM) and dynamic light scattering (DLS) experiments. The UV-Vis absorption spectra of the SS-AgNPs colloids showed surface Plasmon resonance in the wavelength range of 418-425 nm confirms the silver nanoparticles formation. The XRD scan revealed the nanocrystalline phase of silver with FCC crystal structure. The TEM images shown the formed silver nanoparticles are spherical in shape with smooth edges and diameter of the particles around 5-20 nm. The DLS results indicated the average size of the nanoparticles is slightly bigger in size compared with TEM values. All the results support the sericin as a prominent bio-template for reduction of silver ions to silver neutral atoms.The research paper describes the in situ synthesis of silver nanoparticles (AgNPs) using Bombyxmorisilk sericin (SS). The formation of silver nanoparticles in the SS solution was confirmed by using UV-Visible spectroscopy (UV-Vis), X-ray diffraction measurements (XRD), transmission electron microscopy (TEM) and dynamic light scattering (DLS) experiments. The UV-Vis absorption spectra of the SS-AgNPs colloids showed surface Plasmon resonance in the wavelength range of 418-425 nm confirms the silver nanoparticles formation. The XRD scan revealed the nanocrystalline phase of silver with FCC crystal structure. The TEM images shown the formed silver nanoparticles are spherical in shape with smooth edges and diameter of the particles around 5-20 nm. The DLS results indicated the average size of the nanoparticles is slightly bigger in size compared with TEM values. All the results support the sericin as a prominent bio-template for reduction of silver ions to silver neutral atoms.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"1994 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89083136","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}

{"title":"MHD free convective flow of a micro-polar fluid through a porous surface","authors":"K. Subbanna, S. Mohiddin, R. Vijaya","doi":"10.1063/1.5122601","DOIUrl":"https://doi.org/10.1063/1.5122601","url":null,"abstract":"In this paper, we study the effects of radiation absorption on MHD free convection mass transfer flow of a micro-polar fluid over an infinite vertical porous plate in the presence of an inclined magnetic field with an angle of inclination with a constant suction velocity. The dimensionless governing equations for this investigation are reduced to a system of linear differential equations using regular perturbation method, and equations are solved analytically. The influence of various flow parameters of the flow field has been discussed and explained graphically. The present study is of immediate interest in geophysical, medicine, biology and all those processes which are greatly embellished by a strong magnetic field with a low density of the gas.In this paper, we study the effects of radiation absorption on MHD free convection mass transfer flow of a micro-polar fluid over an infinite vertical porous plate in the presence of an inclined magnetic field with an angle of inclination with a constant suction velocity. The dimensionless governing equations for this investigation are reduced to a system of linear differential equations using regular perturbation method, and equations are solved analytically. The influence of various flow parameters of the flow field has been discussed and explained graphically. The present study is of immediate interest in geophysical, medicine, biology and all those processes which are greatly embellished by a strong magnetic field with a low density of the gas.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76632151","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}

{"title":"Hydrothermal synthesis, spectroscopic, optical and electrochemical characterization of vanadium dioxide nanostructures","authors":"Meenu, Bharti, B. S. Dehiya","doi":"10.1063/1.5122591","DOIUrl":"https://doi.org/10.1063/1.5122591","url":null,"abstract":"VO2(B) has been successfully synthesized via one step hydrothermal process using vanadium source as V2O5 and 2-Hydroxypropane-1,2,3-tricarboxylic acid as reducing and structure directing agent at 230°C for 24 hr. The product compound was analysed through X-ray diffraction (XRD) and scanning electron microscopy (SEM), and its physicochemical properties are characterized by FTIR and UV-VIS spectroscopy. The obtained VO2 (B) nanoparticles are under 10nm with optical band gap of 2.67eV. Thin film of VO2 (B) nanoparticles was deposited on ITO substrate was electrochemically characterized by cyclic voltammetry. The electrochemical characterizations have revealed reversible redox behavior which corresponds to the reversible lithium intercalation/deintercalation.VO2(B) has been successfully synthesized via one step hydrothermal process using vanadium source as V2O5 and 2-Hydroxypropane-1,2,3-tricarboxylic acid as reducing and structure directing agent at 230°C for 24 hr. The product compound was analysed through X-ray diffraction (XRD) and scanning electron microscopy (SEM), and its physicochemical properties are characterized by FTIR and UV-VIS spectroscopy. The obtained VO2 (B) nanoparticles are under 10nm with optical band gap of 2.67eV. Thin film of VO2 (B) nanoparticles was deposited on ITO substrate was electrochemically characterized by cyclic voltammetry. The electrochemical characterizations have revealed reversible redox behavior which corresponds to the reversible lithium intercalation/deintercalation.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85175192","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}

{"title":"Mechanical properties and applications of fibre metal laminates","authors":"A. Mukesh, N. Hynes","doi":"10.1063/1.5122456","DOIUrl":"https://doi.org/10.1063/1.5122456","url":null,"abstract":"Fibre metal laminates are hybrid composite materials built up from interlacing layersof thin metals and fibre reinforced adhesives. The FML are used in wide range in aerospace structure and automotive industries application due to their high specific mechanical properties especially fatigue resistance. During the past decades, increasing demand in aircraft industry for high-performance, lightweight structures have stimulated a strong trend towards the development of refined models for fibre-metal laminates (FMLs). The most commercially available fibre metal laminates (FMLs) are ARALL (Aramid Reinforced Aluminium Laminate), based on aramid fibres, GLARE (Glass Reinforced Aluminium Laminate), based on high strength glass fibres and CARALL (Carbon Reinforced Aluminium Laminate), based on carbon fibres. In this present work, study the Mechanical properties and Application of FML.Fibre metal laminates are hybrid composite materials built up from interlacing layersof thin metals and fibre reinforced adhesives. The FML are used in wide range in aerospace structure and automotive industries application due to their high specific mechanical properties especially fatigue resistance. During the past decades, increasing demand in aircraft industry for high-performance, lightweight structures have stimulated a strong trend towards the development of refined models for fibre-metal laminates (FMLs). The most commercially available fibre metal laminates (FMLs) are ARALL (Aramid Reinforced Aluminium Laminate), based on aramid fibres, GLARE (Glass Reinforced Aluminium Laminate), based on high strength glass fibres and CARALL (Carbon Reinforced Aluminium Laminate), based on carbon fibres. In this present work, study the Mechanical properties and Application of FML.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88952279","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}

{"title":"Reinforcement in aluminium metal matrix composites","authors":"G. Sundar, N. Hynes","doi":"10.1063/1.5122398","DOIUrl":"https://doi.org/10.1063/1.5122398","url":null,"abstract":"Metal matrix composites offer a number of advantages compared to their base metals, such as higher specific strengths and moduli, higher elevated temperature resistance, lower coefficients of thermal expansion, and, in some cases, better wear resistance. On the down side, they are more expensive than their base metals and have lower toughness. The combined effect of reinforcements on Aluminium Metal Matrix composites with individual and multiple particulate reinforcements like Hybrid Metal matrix composites are finding increased applications in aerospace, automobile, space, underwater, and transportation applications. This is mainly due to improved mechanical properties like strength, stiffness, abrasion, impact resistance and wear resistance. Besides, high tensile and shear moduli, good fatigue and fracture properties, small thermal expansion coefficient, high melting point, high toughness, high ductility, high thermal and electrical conductivities, good erosion resistance, dimensional stability and good moisture resistance make reinforced Aluminium Matrix composites more attractive. In this paper an attempt has been made to provide the effect of reinforcement and also discuss the types of reinforcement used inAluminium based MMC. Reactivity of the matrix and the reinforcing material, type of the reinforcing material, volume fraction of the reinforcing material and distribution of the reinforcing material are the main challenges encountered during adding of reinforcements in the production of Aluminium Matrix Composites.Metal matrix composites offer a number of advantages compared to their base metals, such as higher specific strengths and moduli, higher elevated temperature resistance, lower coefficients of thermal expansion, and, in some cases, better wear resistance. On the down side, they are more expensive than their base metals and have lower toughness. The combined effect of reinforcements on Aluminium Metal Matrix composites with individual and multiple particulate reinforcements like Hybrid Metal matrix composites are finding increased applications in aerospace, automobile, space, underwater, and transportation applications. This is mainly due to improved mechanical properties like strength, stiffness, abrasion, impact resistance and wear resistance. Besides, high tensile and shear moduli, good fatigue and fracture properties, small thermal expansion coefficient, high melting point, high toughness, high ductility, high thermal and electrical conductivities, good erosion resistance, dimensional stability and good...","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"98 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85350785","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}

{"title":"Synthesis of α-MoO3 nanorods by sol gel synthesis and to investigate its room temperature humidity sensing properties","authors":"L. P. B. Reddy, H. G. Rajprakash, Y. Ravikiran","doi":"10.1063/1.5122414","DOIUrl":"https://doi.org/10.1063/1.5122414","url":null,"abstract":"The metal oxide nonmaterial is potential candidates for sensor applications. The molybdenum oxide found many applications from electronic devices to energy storage devices. Molybdenum trioxide (MoO3) nanorods was synthesized by sol-gel synthesis and structurally characterized by XRD and SEM techniques. The X-ray diffraction confirms the formation of crystalline α-MoO3. The SEM images confirm the formation of α-MoO3 nanorods having a 2-8 µm length. The humidity sensing properties of α-MoO3 nanorods were studied in the range of 10-97% RH. The pellet form α-MoO3 humidity sensor device is exposed to different RH levels. The α-MoO3 shows excellent response time of 40 s and as well as recovery time of 5 s at room temperature. These results indicate that, α-MoO3 nano structure humidity sensor can be used as a potential device for industrial applications.The metal oxide nonmaterial is potential candidates for sensor applications. The molybdenum oxide found many applications from electronic devices to energy storage devices. Molybdenum trioxide (MoO3) nanorods was synthesized by sol-gel synthesis and structurally characterized by XRD and SEM techniques. The X-ray diffraction confirms the formation of crystalline α-MoO3. The SEM images confirm the formation of α-MoO3 nanorods having a 2-8 µm length. The humidity sensing properties of α-MoO3 nanorods were studied in the range of 10-97% RH. The pellet form α-MoO3 humidity sensor device is exposed to different RH levels. The α-MoO3 shows excellent response time of 40 s and as well as recovery time of 5 s at room temperature. These results indicate that, α-MoO3 nano structure humidity sensor can be used as a potential device for industrial applications.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87018676","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}