Results 31 to 40 of about 500,968 (278)

Gallstone Magnesium Distributions from Optical Emission Spectroscopy

Atoms, 2018
This work reports measurements of calcified gallstone elemental compositions using laser-induced optical emission spectroscopy. The experimental results support the importance of the magnesium concentration in gallstone growth.
Ashok K. Pathak, Nilesh K. Rai, Rohit Kumar, Pradeep K. Rai, Awadhesh K. Rai, Christian G. Parigger   +5 more
doaj   +1 more source

Plasma Spectroscopy

Fusion Science and Technology, 2010
A brief introduction into the spectroscopy of fusion plasmas is presented. Basic principles of the emission of ionic, atomic and molecular radiation is explained and a survey of the effects, which lead to the population of the respective excited levels, is given. Line radiation, continuum radiation, opacity and line broadening mechanisms are addressed.
openaire   +4 more sources

Closed Loop Control of Penetration Depth during CO₂ Laser Lap Welding Processes

Sensors, 2012
In this paper we describe a novel spectroscopic closed loop control system capable of stabilizing the penetration depth during laser welding processes by controlling the laser power.
Antonio Ancona, Bert Huis in ’t Veld, Ronald Aarts, Ali Riza Konuk, Pietro Mario Lugarà, Francesco P. Mezzapesa, Teresa Sibillano, Domenico Rizzi   +7 more
doaj   +1 more source

A Simple Laser-Induced Breakdown Spectroscopy Method for Quantification and Classification of Edible Sea Salts Assisted by Surface-Hydrophilicity-Enhanced Silicon Wafer Substrates

Sensors, 2023
Salt, one of the most commonly consumed food additives worldwide, is produced in many countries. The chemical composition of edible salts is essential information for quality assessment and origin distinction.
Han-Bum Choi, Seung-Hyun Moon, Hyang Kim, Nagaraju Guthikonda, Kyung-Sik Ham, Song-Hee Han, Sang-Ho Nam, Yong-Hoon Lee   +7 more
doaj   +1 more source

Synthesis and characterization of spherical amorphous alumo-silicate nanoparticles using RF thermal plasma method [PDF]

, 2013
The RF thermal plasma synthesis route was used for the preparation of alumo-silicate spherical particles. Homogeneous solid mixtures of raw materials (Al2O3, SiO2 and KOH) were used as precursors.
Jankeviciutea, Audrone, Kareivaa, Aivaras, Károly, Zoltán, Szépvölgyi, János, Tarakinac, Nadezda V.   +4 more
core   +1 more source

Spectral Modeling of Hydrogen Radiation Emission in Magnetic Fusion Plasmas

Atoms, 2019
Modeling of the spectral line and continuum radiation emitted by hydrogen isotopes in peripheral regions of magnetic fusion is presented through profiles of the Zeeman-Doppler broadened Hα/Dα line and those of the Stark broadened high-n Balmer ...
Mohammed Koubiti, Roshin Raj Sheeba
doaj   +1 more source

Breakdown Spectroscopy Induced by Nonlinear Interactions of Femtosecond Laser Filaments and Multidimensional Plasma Gratings

Ultrafast Science, 2023
Breakdown spectroscopy is a valuable tool for determining elements in solids, liquids, and gases. All materials in the breakdown region can be ionized and dissociated into highly excited fragments and emit characteristic fluorescence spectra.
Mengyun Hu, Shupeng Xu, Shuai Yuan, Heping Zeng   +3 more
doaj   +1 more source

Line-Shape Code Comparison through Modeling and Fitting of Experimental Spectra of the C ii 723-nm Line Emitted by the Ablation Cloud of a Carbon Pellet

Atoms, 2014
Various codes of line-shape modeling are compared to each other through the profile of the C ii 723-nm line for typical plasma conditions encountered in the ablation clouds of carbon pellets, injected in magnetic fusion devices.
Mohammed Koubiti, Motoshi Goto, Sandrine Ferri, Stephanie B. Hansen, Evgeny Stambulchik   +4 more
doaj   +1 more source

Spectroscopic investigations of detachment on the MAST Upgrade Super-X divertor

Nuclear Fusion, 2022
We present the first analysis of the atomic and molecular processes at play during detachment in the MAST-U Super-X divertor using divertor spectroscopy data.
K. Verhaegh, B. Lipschultz, J.R. Harrison, N. Osborne, A.C. Williams, P. Ryan, J. Allcock, J.G. Clark, F. Federici, B. Kool, T. Wijkamp, A. Fil, D. Moulton, O. Myatra, A. Thornton, T.O.S.J. Bosman, C. Bowman, G. Cunningham, B.P. Duval, S. Henderson, R. Scannell, the MAST Upgrade team   +21 more
doaj   +1 more source

Janus monolayers of transition metal dichalcogenides. [PDF]

, 2017
Structural symmetry-breaking plays a crucial role in determining the electronic band structures of two-dimensional materials. Tremendous efforts have been devoted to breaking the in-plane symmetry of graphene with electric fields on AB-stacked bilayers ...
A Manchon, Ang-Yu Lu, AV Bune, B Hunt, BJ Rodriguez, C Becher, Chia-Chin Cheng, Chih-Piao Chuu, Chih-Wen Yang, David A. Muller, Dennis Nordlund, Dimosthenis Sokaras, F Johann, G da Cunha Rodrigues, GM Akselrod, H Li, H Yuan, H Zeng, H Zhu, Hanyu Zhu, JJ Yeh, Jun Xiao, KF Mak, KF Mak, Kung-Hwa Wei, LA Ponomarenko, Lain-Jong Li, Mei-Yin Chou, Ming-Hui Chiu, MP Seah, N Kumar, Peidong Yang, RM Corn, S Hong, S Wu, S-H Su, X Yin, XB Wang, Xiang Zhang, Y Liu, Y Shi, Y Shimazaki, Y Zhang, Y-H Lee, YC Cheng, Yiming Yang, Yimo Han, Yuan Wang, Z Ye   +48 more
core   +1 more source