ADVANCES IN BASIC SCIENCE (ICABS 2019)最新文献_第8页

Effect of light absorption and critical beam power on self-focusing of Gaussian laser beam in collision less magnetized plasma 光吸收和临界光束功率对高斯激光束在无碰撞磁化等离子体中自聚焦的影响

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI: 10.1063/1.5122463

T. U. Urunkar, K. M. Gavade, B. D. Vhanmore, A. T. Valkunde, S. Patil, M. Takale

{"title":"Effect of light absorption and critical beam power on self-focusing of Gaussian laser beam in collision less magnetized plasma","authors":"T. U. Urunkar, K. M. Gavade, B. D. Vhanmore, A. T. Valkunde, S. Patil, M. Takale","doi":"10.1063/1.5122463","DOIUrl":"https://doi.org/10.1063/1.5122463","url":null,"abstract":"In the present paper, authors have studied the effect of light absorption and critical beam power on self-focusing of Gaussian laser beam propagating through collisionless magnetized plasma. The field distribution in the medium is expressed in terms of beam-width parameter and absorption coefficient. Usual parabolic equation approach under WKB and paraxial approximations is employed to obtain the differential equation for beam width parameter. It is found that critical critical beam power and absorption coefficient play vital role in propagation of Gaussian laser beam in collisionless magnetized plasma. The behavior of beam-width parameter with the normalized distance of propagation is studied at various values of critical beam power with different absorption levels in magnetized plasma. The results are presented in the form of graphs and discussed.In the present paper, authors have studied the effect of light absorption and critical beam power on self-focusing of Gaussian laser beam propagating through collisionless magnetized plasma. The field distribution in the medium is expressed in terms of beam-width parameter and absorption coefficient. Usual parabolic equation approach under WKB and paraxial approximations is employed to obtain the differential equation for beam width parameter. It is found that critical critical beam power and absorption coefficient play vital role in propagation of Gaussian laser beam in collisionless magnetized plasma. The behavior of beam-width parameter with the normalized distance of propagation is studied at various values of critical beam power with different absorption levels in magnetized plasma. The results are presented in the form of graphs and discussed.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"92 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83351835","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: 2

Effect of inter layers in joining dissimilar metals 中间层对异种金属连接的影响

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI: 10.1063/1.5122396

R. Pravin, S. Raj

{"title":"Effect of inter layers in joining dissimilar metals","authors":"R. Pravin, S. Raj","doi":"10.1063/1.5122396","DOIUrl":"https://doi.org/10.1063/1.5122396","url":null,"abstract":"In the recent decade, dissimilar metal joints are much sought in many critical industrial application. But joining of dissimilar metals pose many challenges because of the difference in chemical, thermal and mechanical properties of metals. Joining of dissimilar metals using interlayers by friction stud welding is an ideal solution. The strength and toughness of the weld can be further improved by introducing a layer of material in between the dissimilar metals. Interlayers are small thin sheet of material of metal used in friction welding of metals. This interlayer has typical effect on the welds and the found to produce desirable effects on the welded joints. This paper focuses on the various effects of interlayers on welding of dissimilar metals.In the recent decade, dissimilar metal joints are much sought in many critical industrial application. But joining of dissimilar metals pose many challenges because of the difference in chemical, thermal and mechanical properties of metals. Joining of dissimilar metals using interlayers by friction stud welding is an ideal solution. The strength and toughness of the weld can be further improved by introducing a layer of material in between the dissimilar metals. Interlayers are small thin sheet of material of metal used in friction welding of metals. This interlayer has typical effect on the welds and the found to produce desirable effects on the welded joints. This paper focuses on the various effects of interlayers on welding of dissimilar metals.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81755702","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

MOF derived Co/C and Co3O4/C polyhedron for hydrogen evolution reaction MOF导出Co/C和Co3O4/C多面体用于析氢反应

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI: 10.1063/1.5122629

U. Azad, Sandeep Kumar, A. Singh, R. Prakash, A. Singh

引用次数: 1

Effect of lanthanum doping on structural and optical properties of ZnO along with photocatalytic activity in degradating toxic pesticide (monocrotophos) 镧掺杂对ZnO结构、光学性质及降解有毒农药(单效磷)光催化活性的影响

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI: 10.1063/1.5122346

Geetika, Vijay Luxmi, Ashavani Kumar

{"title":"Effect of lanthanum doping on structural and optical properties of ZnO along with photocatalytic activity in degradating toxic pesticide (monocrotophos)","authors":"Geetika, Vijay Luxmi, Ashavani Kumar","doi":"10.1063/1.5122346","DOIUrl":"https://doi.org/10.1063/1.5122346","url":null,"abstract":"Organic pollutants such as pesticides, dyes used in agriculture and industries pollute the water on large scale. In order to solve the problem of water pollution caused by the agricultural pesticides its degradation process has been studied. For this purpose, pure-ZnO and La doped ZnO nanoparticles were synthesized via co-precipitation method to observe photocatalytic response. Synthesized nanoparticles were unambiguously examined using x-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques for morphological and structural characterization. UV-visible spectroscopy and photoluminescence (PL) techniques for optical characterization. The average crystallite sizes of ZnO and La-doped ZnO NPs were ∼55 nm and 35 nm, respectively. For photocatalytic activity, monocrotophos which is an insecticide is aimed to degrade in normal water under u.v light illumination. Enhancement in photocatalytic degradation efficiency is observed in La-doped ZnO due to enhancement in the surface area.Organic pollutants such as pesticides, dyes used in agriculture and industries pollute the water on large scale. In order to solve the problem of water pollution caused by the agricultural pesticides its degradation process has been studied. For this purpose, pure-ZnO and La doped ZnO nanoparticles were synthesized via co-precipitation method to observe photocatalytic response. Synthesized nanoparticles were unambiguously examined using x-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques for morphological and structural characterization. UV-visible spectroscopy and photoluminescence (PL) techniques for optical characterization. The average crystallite sizes of ZnO and La-doped ZnO NPs were ∼55 nm and 35 nm, respectively. For photocatalytic activity, monocrotophos which is an insecticide is aimed to degrade in normal water under u.v light illumination. Enhancement in photocatalytic degradation efficiency is observed in La-doped ZnO due to enhancement in the surface area.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"273 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89769144","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: 3

Polyaniline integrated with reduced graphene oxide resulting in binder free electrode material for supercapacitor application 聚苯胺与还原氧化石墨烯集成，产生超级电容器应用的无粘结剂电极材料

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI: 10.1063/1.5122550

Mandira Majumder, R. Choudhary, A. K. Thakur

引用次数: 0

Influence of Eu3+ ions on nonlinear optical properties of alklai borate glasses at near-infrared wavelengths Eu3+离子对碱硼酸盐玻璃近红外非线性光学性质的影响

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI: 10.1063/1.5122416

G. Jagannath, B. Eraiah, K. N. Krishnakanth, Venugopal Rao Soma

{"title":"Influence of Eu3+ ions on nonlinear optical properties of alklai borate glasses at near-infrared wavelengths","authors":"G. Jagannath, B. Eraiah, K. N. Krishnakanth, Venugopal Rao Soma","doi":"10.1063/1.5122416","DOIUrl":"https://doi.org/10.1063/1.5122416","url":null,"abstract":"Optical glasses with enhanced third order nonlinear attributes are promsing materials for photonic applications, particularly for optical limiting and switching devices. With the aim of obtaining enhanced nonlinear optical (NLO) properties, Eu3+ doped borate glasses have been prepared through method of melt quench. NLO properties of fabricated glasses were investigated using Z‒scan techinique as a function of Eu2O3 concentration at near-infrared (NIR) wavelength (800 nm) by utilising 150 femtosecond (fs) laser pulses generated at a repetetion rate of 80 MHz from sapphire laser. The investigated glasses demonstrated a reverse saturable absorption (RSA) type of behaviour in open aperture (OA) configuration and positive nonlinear refraction in closed aperture (CA) configuration. The retrieved NLO coefficients evidently demonstrate the studied glasses are competing materials for photonic applications under fs regime.Optical glasses with enhanced third order nonlinear attributes are promsing materials for photonic applications, particularly for optical limiting and switching devices. With the aim of obtaining enhanced nonlinear optical (NLO) properties, Eu3+ doped borate glasses have been prepared through method of melt quench. NLO properties of fabricated glasses were investigated using Z‒scan techinique as a function of Eu2O3 concentration at near-infrared (NIR) wavelength (800 nm) by utilising 150 femtosecond (fs) laser pulses generated at a repetetion rate of 80 MHz from sapphire laser. The investigated glasses demonstrated a reverse saturable absorption (RSA) type of behaviour in open aperture (OA) configuration and positive nonlinear refraction in closed aperture (CA) configuration. The retrieved NLO coefficients evidently demonstrate the studied glasses are competing materials for photonic applications under fs regime.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81793471","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

Concept of certainty in residual life of a system 系统剩余寿命的确定性概念

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI: 10.1063/1.5122600

Surender Singh, Sonam Sharma

引用次数: 0

Effect of annealing temperature on structural and dielectric properties of bismuth ferrite nanostructures 退火温度对铋铁氧体纳米结构结构和介电性能的影响

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI: 10.1063/1.5122344

Praveen Kumar, P. Chand, Aman Joshi

引用次数: 5

Characteristics categorization dataset KDD cup’99 特征分类数据集KDD cup ' 99

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI: 10.1063/1.5122494

S. Srivastava, Y. Sharma, Sheo Kumar

{"title":"Characteristics categorization dataset KDD cup’99","authors":"S. Srivastava, Y. Sharma, Sheo Kumar","doi":"10.1063/1.5122494","DOIUrl":"https://doi.org/10.1063/1.5122494","url":null,"abstract":"System security is an essential issue these days since the web utilization is expanding in multi-measurements mostly on account of much more use of convenient contraptions. The present web innovation experienced an issue of system security and information trustworthiness. Information For the uprightness and system security different application programming are utilized, for example, firewall and other checking antivirus programming. The regular monitoring of data and network need power full application and software such as intrusion detection system (IDS). Dataset will be helpful to identify malign intentions of network users without negotiating the security of the computer and the network. The dataset contain reasonable number of records in the train and test sets, which makes it affordable to run the experiments on the complete set without the need to randomly select a small portion.System security is an essential issue these days since the web utilization is expanding in multi-measurements mostly on account of much more use of convenient contraptions. The present web innovation experienced an issue of system security and information trustworthiness. Information For the uprightness and system security different application programming are utilized, for example, firewall and other checking antivirus programming. The regular monitoring of data and network need power full application and software such as intrusion detection system (IDS). Dataset will be helpful to identify malign intentions of network users without negotiating the security of the computer and the network. The dataset contain reasonable number of records in the train and test sets, which makes it affordable to run the experiments on the complete set without the need to randomly select a small portion.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83172244","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: 2

Effect of swift heavy ion irradiation on structural, electrical and optical properties of zinc-stannate thin films 快速重离子辐照对锡酸锌薄膜结构、电学和光学性能的影响

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI: 10.1063/1.5122432

Y. Kumar, Ravi Kumar, K. Asokan, Avineesh Singh

{"title":"Effect of swift heavy ion irradiation on structural, electrical and optical properties of zinc-stannate thin films","authors":"Y. Kumar, Ravi Kumar, K. Asokan, Avineesh Singh","doi":"10.1063/1.5122432","DOIUrl":"https://doi.org/10.1063/1.5122432","url":null,"abstract":"In the present study, 120 MeV Ag ions were irradiated onzinc-stannate (Zn-Sn-O) thin films. The modifications in the structural, electrical and optical properties were studied using grazing-incidence x-ray diffraction (GIXRD), two probe method and UV-Vis spectroscopy. The crystalline to amorphous phase transformation was observed from GIXRD data. The electrical studies revealed that the resistivity has increased with doping and on irradiation. The minimum resistivity of 14 mΩ cm, at room temperature, has been observed for pristine Zn-Sn-O thin film. The average optical transmittance was above 75% in visible region for both pristine and SHI Irradiated zinc-stannate thin films.In the present study, 120 MeV Ag ions were irradiated onzinc-stannate (Zn-Sn-O) thin films. The modifications in the structural, electrical and optical properties were studied using grazing-incidence x-ray diffraction (GIXRD), two probe method and UV-Vis spectroscopy. The crystalline to amorphous phase transformation was observed from GIXRD data. The electrical studies revealed that the resistivity has increased with doping and on irradiation. The minimum resistivity of 14 mΩ cm, at room temperature, has been observed for pristine Zn-Sn-O thin film. The average optical transmittance was above 75% in visible region for both pristine and SHI Irradiated zinc-stannate thin films.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83041285","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: 6