نتایج جستجو برای: laser induced breakdown spectroscopy
تعداد نتایج: 1317446 فیلتر نتایج به سال:
Algal biomass that is represented mainly by commercially grown algal strains has recently found many potential applications in various fields of interest. Its utilization has been found advantageous in the fields of bioremediation, biofuel production and the food industry. This paper reviews recent developments in the analysis of algal biomass with the main focus on the Laser-Induced Breakdown ...
Laser Induced Breakdown Spectroscopy (LIBS) is a laser based spectroscopic technique which has been used widely in various fields, including the determination of the fuel to air ratio (FAR) in combustion. However, the flames examined so far with LIBS were mostly involving gaseous fuels, lean to stoichiometric compositions, and the burners used were of simple geometry. In the present work, LIBS ...
Introduction: Laser-induced Breakdown spectroscopy (LIBS) is currently under development for future lander missions to Mars [1–10] and other planets and moons, like Venus or Europa [11, 12]. LIBS spectroscopically determines the visible atomic emission from a plasma that is generated by pulsed laser light focused on a sample surface. The intensities of the many characteristic spectral lines of ...
A espectroscopia de emissão em plasma induzido por laser (LIBS) foi avaliada para a detecção de resíduos de disparo de arma de fogo (GSR) nas mãos de um suspeito. Para desenvolver o procedimento, 114 amostras foram obtidas pressionando um pequeno pedaço de fita adesiva contra a região dorsal das mãos de não-atiradores, atiradores após o disparo e de atiradores após terem lavado as mãos com sabã...
A pathogenic strain of bacteria, Escherichia coli O157:H7 enterohemorrhagic E. coli or EHEC , has been analyzed by laser-induced breakdown spectroscopy LIBS with nanosecond pulses and compared to three nonpathogenic E. coli strains: a laboratory strain of K-12 AB , a derivative of the same strain termed HF4714, and an environmental strain, E. coli C Nino C . A discriminant function analysis DFA...
Introduction: One of the most promising of instruments selected for the upcoming Mars Science Laboratory (MSL) mission for analyzing Martian rocks is the remote Laser-Induced Breakdown Spec-troscopy (LIBS) on the ChemCam instrument package. The LIBS technique involves focusing a laser pulse beam at a distant target with sufficiently high energy that a plasma is made, reducing a small spot on th...
Laser-induced breakdown spectroscopy (LIBS) has been popular in elemental analysis for various kinds of samples due to its rapid and in-situ measurement using simple equipment. However, quantitative analysis by LIBS is still inferior to conventional element analysis methods in sensitivity and accuracy. In this paper improvement in LIBS is attempted applying computational processing to low-resol...
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