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Showing 1 to 20 of 104 for “"LIBS"”.
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Laser-induced breakdown spectroscopy (libs): an innovative tool for studying bacteria
<p>Laser-induced breakdown spectroscopy (LIBS) has gained a reputation as a flexible and convenient technique for rapidly determining the elemental composition of samples with minimal or no sample preparation. In this dissertation, I will describe the benefits of using LIBS for the rapid …
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Comparative Investigation of LIBS Spectra and Crater Morphology During Laser Ablation of Eutectic BiSn Alloys
… alloys. Laser-Induced Breakdown Spectroscopy (LIBS), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and optical profilometer techniques were used to characterize the plasma plume and the morphology and elemental distribution of the craters, post ablation. The …
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In-situ, ταχεία και μη-διαταρακτική διαγνωστική διαδικασιών καύσης και των προϊόντων με φασματοσκοπία πλάσματος επαγόμενο από λέιζερ (LIBS)
… η φασματοσκοπία πλάσματος επαγόμενο από λέιζερ (LIBS) έχει προσελκύσει μεγάλο ερευνητικό ενδιαφέρον καθώς αποτελεί μία πειραματικά απλή και αποτελεσματική τεχνική, η οποία παρέχει τη δυνατότητα λήψης μετρήσεων για απευθείας ποιοτική και ποσοτική στοιχειακή ανάλυση. Η τεχνική LIBS στηρίζεται στη …
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Laboratory evaluation of laser-induced breakdown spectroscopy (LIBS) as a new in situ chemical sensing technique for the deep ocean
… important. Laser-induced breakdown spectroscopy (LIBS) possesses many of the characteristics required for such in situ chemical sensing, and is a promising technique for field measurements in extreme environments. Although many LIBS researchers have focused their work on liquid jets or surfaces, …
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Laboratory evaluation of laser-induced breakdown spectroscopy (LIBS) as a new in situ chemical sensing technique for the deep ocean
… important. Laser-induced breakdown spectroscopy (LIBS) possesses many of the characteristics required for such in situ chemical sensing, and is a promising technique for field measurements in extreme environments. Although many LIBS researchers have focused their work on liquid jets or surfaces, …
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Mechanisms of Enhancement in Dual Pulse Laser Induced Breakdown Spectroscopy and Quantitative Measurements of Laser Induced Breakdown Spectroscopy in Bulk Aqueous Solution
… of Laser Induced Breakdown Spectroscopy (LIBS) during recent years. Chapter one is a broad overview of LIBS as a technique including a brief history, the theory behind the technique, and the instrumentation typically used. This chapter also introduces the concept of using two laser pulses …
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Laser-Induced Breakdown Spectroscopy of Micron Sized Particles with the Consideration of Industrial Applications
Laser-induced breakdown spectroscopy (LIBS) is a technology for performing spectral analysis of materials with little sample preparation, rapid measurement times, and minimal damage to the sample. Micro-LIBS is a form of LIBS which can be used to study micron-sized particles. Micron-sized particles …
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Development and Validation of Laser-Induced Breakdown Spectroscopy Methods for the Analysis of Aqueous Solutions
<p>Laser-induced breakdown spectroscopy (LIBS) is an analytical technique that uses the focused energy of a pulsed laser as a sampling and excitation source for atomic emission spectroscopy (AES). LIBS has some distinct advantages over traditional AES methods: ability to analyze any phase of …
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Analyzing geological materials under martian conditions using laser-induced breakdown spectroscopy : plasma fundamentals, sample classification, and trace element quanitification
Laser-induced breakdown spectroscopy (LIBS) is an emission spectroscopy analysis technique that continues to be developed for the study of solids, liquids and gases. Geological applications for LIBS are a particularly exciting area of research, in part due to the capabilities of the technique to …
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Laser induced breakdown spectroscopy of martian breccia Northwest Africa 7034: comparison with Mars Science Laboratory results
… utilizing laser-induced breakdown spectroscopy (LIBS) instrumentation to determine compositions of rocks shot in Gale crater, Mars, from a distance of 1.56-7 meters. At the same time, martian breccia meteorite Northwest Africa (NWA) 7034 was analyzed with the ChemCam engineering model laboratory …
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Interfacial Tailoring of Lithium-ion Batteries by Atomic/Molecular Layer Deposition
<p>Lithium-ion batteries (LIBs) are promising energy storage devices, which play significant roles in addressing problems related to fossil fuels depletion and environmental pollution. Since the 1990s, LIBs have attracted great attention for many applications. Nowadays, LIBs are dominating portable …
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Development of nanosecond-gated laser induced breakdown spectroscopy for fuel mole fraction measurements in supersonic combustion
… Laser-induced breakdown spectroscopy (LIBS) is a measurement technique utilizing the emissions from a plasma-generated from a focused laser pulse to determine quantitative parameters of the medium, specifically atomic composition and number density. As LIBS is non-intrusive prior to the …
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Determining Elemental Concentrations of Nickel-Doped Iron Samples through the Method of Laser Induced Breakdown Spectroscopy
… Laser induced breakdown spectroscopy (LIBS) is a method for determining compositional information of materials with minimal to no sample preparation and with limited destructiveness. In this work, an optical path configuration for achieving ablation that is suitable for both LIBS and …
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Laser-induced breakdown spectroscopy applied to pasture, titanium, and bioplastics
… is laserinduced breakdown spectroscopy (LIBS). LIBS is an optical emission technique that utilizes a high-powered pulsed laser to create a plasma on the sample surface. As the plasma cools, photons are emitted at distinct wavelengths corresponding to the elemental composition in the …
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The Effect of Buckling on the Interface Conductance in Flexible Lithium-Ion Batteries
… performance of the flexible lithium ion battery (LIBs). In this study, flexible thin-film lithium ion batteries based on solid nanocomposite polymer electrolyte were fabricated. The interfacial impedance in fresh and cycled flexible LIBs was investigated in flat and buckled configurations using …
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Methodology for Pyrolysis-induced Thermal Runaway Analysis in Li-ion Batteries
As the adoption of lithium-ion batteries (LIBs) grows due to the demand for highenergy density storage solutions, ensuring their safety becomes paramount. Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC), which have traditionally been tools in polymer thermal analysis …
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Degradation Mechanisms and Applications in Ion Intercalation Materials
Lithium ion batteries (LiBs) are a pivotal energy storage technology that are widely adopted for their high energy density and safety. From a macroscopic level, LiBs operate at a micrometer lengthscale, but consist of many active material nanoparticles which participate in reversible …
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Experimental Testing and Numerical Modelling of Thermal Runaway in 18650 Lithium-Ion Batteries
Lithium-ion batteries (LIBs) are essential for commercial energy storage due to their high energy density and efficiency, supporting the global shift toward greener energy. However, damaged or abused LIBs can undergo thermal runaway (TR), a rapid exothermic process causing high temperatures in …
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The Design and Optimization of a Lithium-ion Battery Direct Recycling Process
Nowadays, Lithium-ion batteries (LIBs) have dominated the power source market in a variety of applications. Lithium cobalt oxide (LiCoO2) is one of the most common cathode materials for LIBs in consumer electronics. The recycling of LIBs is important because cobalt is an expensive element that is …
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