band broadening 中文意思是什麼

band broadening 解釋
譜帶擴展(加寬)
  • band : n 1 帶,繩;帶形物;箍;箍條;嵌條;鑲邊;鋸條; 〈pl 〉 (法官等的)寬領帶。2 束縛,羈絆;義務;...
  • broadening : 加寬擴大
  1. The clues and techniques to improve the resolution of data processing are 1 ) removing the affection of near surface factors on data acquisition, including static correction and noise eliminating technique etc, 2 ) broadening the frequency band of pre - stack seismic data, including amplitude compensation and pre - stack deconvolution etc, 3 ) improving s / n ratio of high frequency and weak reflection signals through multiple coverage with high precision velocity analysis, residual static correction and high - order nmo, raising " dead line of high frequency reflection ", and 4 ) identifying post stack effective reflection frequency band, enhancing dominant frequency and so on

    主要包括:消除近地表因素對資料採集的影響,包括靜校正和噪音壓制技術等;疊前拓寬地震資料領帶,包括振幅補償和疊前反褶積技術等;藉助高精度速度分析、剩餘靜校正和高次項nmo技術,通過多次覆蓋疊加,消除資料中隨機噪聲干擾、提高資料信噪比,尤其是高頻端反射信息的信噪比,改善高頻反射和弱反射信號信噪比,提高「高頻反射死亡線」 ;疊後有限反射頗帶識別、抬高優勢頻率等。
  2. Nanoparticles show significant quantum - size effect ( such as energy band discreteness, band gap broadening, blue shift in spectra etc. ) as sizes of particles are smaller than bohr radis of exciton of bulk material with same composition ( for example, cds ’ s bohr radium is 6nm )

    當納米粒子的尺寸小於其塊狀材料的激子波爾半徑時(如cds的激子波爾半徑為6nm ) ,能夠表現出明顯的量子尺寸效應(如能帶離散,禁帶變寬,光譜藍移等) 。
  3. The blue shift could be associated with precipitation of xe gas bubbles. since the precipitation will change the defect morphology and reduce the sizes of each isolated defects, so to intensify the quantum size effects of nano - particles and induce the observed band gap broadening

    10 ~ ( 17 ) cm ~ ( - 2 )樣品峰位藍移,是由於xe以氣泡形式析出,改變了缺陷形態、使缺陷的分立尺寸減小,納米粒子的量子尺寸效應變得明顯,導致能隙展寬。
  4. The turns in the serpentine channel were asymmetrically tapered to minimize geometrical contributions to band broadening and to provide ample channel length for high - efficiency chromatographic separations

    蜿蜒通道地轉彎處是不均勻地錐形以減小幾何原因引起地譜帶展寬和提供樣品通道長度使高效色譜分離。
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