吸收谱线

The parameter of laser energy transfer efficiency is used in the new model with a clear physical meaning for the first time. The mean absorption factor of laser induced plasma to the laser within the keyhole is calculated according to different welding parameters using the relative intensity method of spectral lines.

首次有机地将激光焊接能量传输效率这一重要的焊接参数以明确的物理意义引入数学模型中；通过谱线相对强度法计算推导出每一个焊接规范下小孔内等离子体对激光的平均吸收系数。

The formula of the absorption of each spectral line of CO2 laser radiation by atmospheric CO2 are given.

本文给出了大气二氧化碳对CO_2激光辐射各谱线吸收的计算公式，并利用标准大气资料计算了各谱线的吸收值。

The method of high-resolution Fourier-transform spectroscopy study on the Absorption line intensities is discussed. With a series of measurement and fitting the line profiles, altogether 1 760 Absorption lines of phosphine were obtained, corresponding to five bands in the 1 950-2 480 cm~(-1)region and four bands i...

文章探讨了高分辨傅里叶变换光谱方法研究气体样品吸收线型的基本原理，并通过实验测量以及程序拟合谱线线型，得到了磷烷分子在1950~2480cm-1波段的5个吸收带以及3280~3580cm-1波段的4个吸收带中的1760条谱线线强度，经分析其结果误差在±6%左右。

Two new Raman spectral lines of I_2 in benzene solution are found in the experiment which is proved that resonance absorption Raman spectrum by liquid-core optical fiber much stronger than resonance absorption Raman spectrum by absorption tube.

发现了两条新的属于碘分子的拉曼谱线，这证明了使用液芯光纤方法获得的共振吸收拉曼光谱比吸收池方法获得的谱线强度强很多倍。

The absorption band at 2240 A discovered by Stucklen in an underwater spark does not agree with the band observed by Hulthen and Zumstein in a high temperature oven and later studied by Grundstrom. The important difference lies in the complete lacking of the R-branch lines in Stucklen's band. New experimental investigation led to the discovery of the unfound R-branch lines. This is a strong evidence that the bands are actually the same.

Stcklen氏发现用铜极在水中生火花有一吸收光带位於2240A区域此光带与Hulthen氏及Zumstein氏及Grund-strom氏在高温度炉中用铜之蒸气加以氢气所得之吸收光带(亦在2240A附近)不能一致最大之分别在Stucklen之光带全无R支谱线新实验工作发现R支谱线之存在得R(0)至R(13)之十四根线确实证明Stucklen之光带并非另一新带。

The (A~2Π_i)-(X~2Σ~+)(2, 0) band of CN was reinvestigated in the AC glow discharge of CH_3CN with He as the carrier gas using near-infrared concentration modulation laser spectroscopy.

利用近红外差分浓度调制激光光谱技术，我们在氦气和乙腈的交流辉光放电中观测到了CN自由基(A~2Π_i)-(X~2Σ~+)(2，0)带的吸收谱，测量和标识了189条谱线，包括全部12个转动支带。

Since the result of FFT of FID rarely exhibits the desired pure absorption line, phase correction of FT NMR spectra becomes a necessity in NMR data processing.

由于仪器和实验条件的关系，核磁共振的FID信号经FFT变换后所得的谱线往往不是需要的纯吸收线形，NMR谱的相位校正也就成了NMR数据处理中的一个基本环节。

In China, from south to north, from summer to winter, the water vapor density is decreasing, and the iodine laser beam absorption rate by water vapor is decreasing as well.

碘激光有6条超精细谱线，单一最强线频率的碘激光的大气分子吸收比多谱线的碘激光小，更有利于大气传输。

The result show that the N elements curbed the transition from anatase phase to rutile phase , Doped-N was in the structure of the TiO2 as the form of Ti-O-N and formed a new bond energy level;N-doped changed the paramagnetic of the characteristics. The paramagnetic resonance spectrum of TiO2 showed anisotropic and showed hyperfine splitting, The Lande factor of Ti3 + combined with the N is 1.956. UV-Vis absorption spectra showed that the photocatalytic ability of photocatalyst TiO2-xNx to expand to the visible region, the sample (3.84wt %) has the highest photo catalytic activity, the adsorption edge extend to 520nm and degradation is 55.54% under the visible light for 1.5h.

研究结果显示，N元素抑制了锐钛矿相向金红石相的转变，阻止了晶粒的长大，掺杂的N元素以O-Ti-N的形式存在于光催化剂结构中，形成了新的能级结构；N掺杂改变了催化剂的顺磁特征，使TiO2的顺磁共振谱线呈现各向异性，发生了超精细分裂，其中g2=1.956，是与N结合的Ti3+的朗德因子；紫外可见光吸收谱表明，催化剂TiO2-xNx的光响应能力拓展到可见光区，光吸收带发生红移；光催化测试结果显示，掺杂量为3.84的TiO2-xNx在可见光区的响应能力最高，吸收波长延伸至520nm，其光催化活性最大，1.5h降解率达到55.54%。

The physical problems concerned with the calculations of the radiative opacities of high temperature plasmas are presented, the emphasis being placed on such atomic processes as bound bound transitions, bound free transitions and the autoionization resonance broadening.

对计算等离子体的光辐射不透明度所涉及到的一些物理问题进行了介绍与讨论，重点放在束缚-束缚谱线跃迁与束缚-自由吸收及自电离共振引起的谱线展宽等物理过程。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。