This paper describes how an ANN can be used to identify the spectral lines of elements. The spectral lines of Cadmium (Cd), Calcium (Ca), Iron (Fe), Lithium (Li), Mercury (Hg), Potassium (K) and Strontium (Sr) in the visible range are chosen for the investigation. One of the ...
The meaning of SPECTRAL LINE is one of a series of linear images formed by a spectrograph or similar instrument and corresponding to a narrow portion of the spectrum of the radiation emitted or absorbed by a particular source.
The spectra of rare earth elements (REE) have been investigated to select thermometric species for spectroscopic diagnostic of analytical plasmas. Groups of lines of Y II, La II, Eu II and Yb II were found appropriate for the determination of ionic excitation temperature in argon wall-stabilized...
DURING 1932, work has been carried on in this laboratory on the measurement of the relative intensity of spectral lines in the above elements. The amount of material available was very limited, consisting of a small quantity of metallic indium and a little gallium chloride, both kindly supplied...
The spectral lines of these objects, which identify the chemical elements of which the object is composed, were also extremely strange and defied explanation. 這些物體的譜線,標示物體組成的化學元素,也非常的奇怪,並且無從解釋。 LASER-wikipedia2 NGC 2787 contains a low-ionization nuclear emission-...
5.Each pattern stands for a distinct chemical element, and so different sets or patterns ofspectrallines mean that the star has a different chemical composition.(听力 托福-12)您的浏览器不支持 audio 标签。 每一种图案都代表了一种不同的化学元素。所以光谱线的不同组合或图案意味着该星星的化学成分...
1、The Fizeauwavemeter has wide range of application in laserspectralfields.(在激光光谱学领域中有着广泛的应用前景。) 2、Each pattern stands for a distinct chemical element, and so different sets or patterns ofspectrallines mean that the star has a different chemical composition.(每一种样式代表一...
Noun1.fine structure- the presence of groups of closely spaced spectrum lines observed in the atomic spectrum of certain elements; "the fine structure results from slightly different energy levels" spectrum line- an isolated component of a spectrum formed by radiation at a uniform frequency ...
Method for determining the concentration ratio of two elements in a substance from the intensity ratio of two spectral lines of these elements in a plasma of the substanceMethod for determining the concentration ratio of two elements in a substance from the intensity ratio of two spectral lines of...
美 英 un.谱线 网络谱线数;频谱线宽度 英汉 网络释义 un. 1. 谱线 释义: 全部,谱线,谱线数,频谱线宽度