نتایج جستجو برای: optical emission spectrometry
تعداد نتایج: 519589 فیلتر نتایج به سال:
Abstract Here, we compare the ionization region model (IRM) against experimental measurements of particle densities and electron temperature in a high power impulse magnetron sputtering discharge with tungsten target. The semi-empirical provides volume-averaged temporal variations various species as well energy for particular cathode target material, when given measured current voltage waveform...
Caspian kutum, Rutilus frisii Kamensky 1901, is a commercially important fish species in the southern part of the Caspian Sea. All of the metal entered in the Caspian Sea. The pollution of this metal cause To create environmental problem. To address the issue, some 51 R. frisii specimens were caught at five different fishing regions (including Astara, Anzali, Kiashahr,) of the southern shorelin...
We report on a short optical monitoring programme of the narrow-line Seyfert 1 Galaxy IRAS 13224-3809. Previous X-ray observations of this object have shown persistent giant variability. The degree of variability at other wavelengths may then be used to constrain the conditions and emission processes within the nucleus. Optical variability is expected if the electron population responsible for ...
A Similarity Ratio Analysis (SRA) method is proposed for early-stage Fault Detection (FD) in plasma etching processes using real-time Optical Emission Spectrometer (OES) data as input. The SRA method can help to realise a highly precise control system by detecting abnormal etch-rate faults in real-time during an etching process. The method processes spectrum scans at successive time points and ...
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