derivative spectrum 中文意思是什麼

derivative spectrum 解釋
導數光譜
  • derivative : adj. 導出的；派生的。n. 1. 派生物。2. 【語言學】派生詞。3. 【化學】衍生物。4. 【醫學】誘導法[劑]。5. 【數學】導數，紀數，微商。adv. -ly
  • spectrum : n. （pl. -tra ）1. 【物理學】譜，光譜；波譜；能譜，質譜。2. 【無線電】射頻頻譜；無線電（信號）頻譜。3. 【心理學】（眼睛的）余像；殘像。4. 〈轉義〉范圍，幅度；（連續的）系列。
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  2. After a series of reactions, an ester which is a derivative of ferrocene is obtained, then using the ester react with 1, 8 - naphthalenediamme, o - m -, p - phenyleiiediamine, ethylenediamine and 4. 4 ' - - biphenyldiamine respectively, polymer ( i ) ( ii ) ( iii ) ( iv ) ( v ) and polymer ( vi ) are obtained at the final part, we have discussed in brief the general properties of polymer ( i ) - { vi ) and analyzed systematically hnmr ir spectrum tg - dt diagram and molecular weight distribution of these polymers

    簡要討論了聚合物（ i ）一（ vi ）的一般性質，對聚合物的核磁共振譜、紅外光譜、 t （卜刃t圖以及分子量分佈進行了系統研究。本文對聚合物（ i ） 、 （ 111 ）和（硯）的核磁共振譜和紅外光譜進行了分析，研究結果表明:聚合物中的援基上的氧原子能與芳胺上的氫原子形成分子內氫鍵，使聚合物的分子內出現了一個平面六元環結構，並山于分子內氫鍵的存在
  3. It is reported in this paper that by using the absorption spectrum of the interfering component as the denominator factor, the first derivative ratio spectra of the component mixture can be obtained, and the inter ference of one of the components can thus be eliminated

    利用混合物的波譜除以干擾組分的波譜得比值波譜，對波長求導得比值導數波譜，由此可消除干擾組分的吸光度疊加效應。
  4. Put forward a technique of derivative photoacoustic spectrum and developed a set of derivative photoacoustic spectrum experiment system

    提出了導數光聲光譜技術，研製了一套導數光聲光譜實驗系統。
  5. Solid - phase extraction - ultraviolet derivative spectrum methods is seldom researched in our country at present

    固相萃取、紫外導數光譜法國內研究尚少。
  6. The solution was divided two portios and equal dilution with 2ml of 0. 45mol / l naoh and 2ml 0. 6mol / l kc1 - h3bo3 buffer obtained ph14 and ph10 solution respectively. the 2nd derivative spectrum of ph14 solution was measurement with phio solution as reference solution

    Oml0石mol l氯化鉀一硼酸緩沖溶液製成ph14及ph10的溶液，以ph10的溶液為參比，測定ph14溶液的二階導數光譜圖。
  7. The eluate was evaporated, the residue was dissolved with 4. 0ml of 0. 1mol / l hcl solution, determine the 2nd derivative spectrum referring to o. lmol / l hcl solution

    Lmol l的鹽酸溶液4 ， oml溶解剩餘物，以0 lmol l的鹽酸溶液為參比，測定二階導數光譜圖。
  8. Ultraviolet derivative spectrum method is a new examination method based on ultraviolet spectrum method since 70s, which is simple and quick and can effectively get rid of the disturbance of impurity, and the sensitivity of which is high

    紫外導數光譜法是70年代以來在紫外光譜法基礎上發展起來的具有操作簡便快速、能有效消除雜質干擾、靈敏度較高等優點的檢測方法。
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