譜質量 的英文怎麼說
中文拼音 [pǔzhíliáng]
譜質量
英文
spectral mass-
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。34 chemical constituents of the essential oil from cortex cercis chinensis were separated and identified by gc - ms. the relative contents of them were determined by area nomaliation
摘要採用水蒸氣蒸餾法從紫荊皮中提取揮發油，用氣相色譜質譜聯用技術對其揮發油成分進行分析，共鑒定了34個成分，並用面積歸一化法確定各成分的相對百分含量。Given the initial conditions including ( 1 ) number density distribution in space which has the similar form to the present day ones, ( 2 ) both the power law and gaussian mass functions for clusters, and ( 3 ) two different velocity distributions which one has a constant dispersion and the other is described by the eddington formula, the dynamical evolution of globular clusters in our milky way galaxy is investigated in detail by means of monte carlo simulations
本文採用與觀測結果具有相同形式的球狀星團空間密度分佈函數，在給定兩種球狀星團系統的初始質量譜（冪律的和對數高斯的）和兩種球狀星團系統的初始速度分佈函數（愛丁頓速度分佈函數和常數的速度彌散度）條件下，我們採用montecarlo的方法對球狀星團系統的動力學演化進行討論。The experimental results show : the flattop phenomenon on the diode voltage pulse was very apparent for using the carbon fiber cathode, that is to say, the pulse duration of the diode voltage was widened ; moreover, under the condition of the same power of microwave, the pulse duration of the out - put microwave was prolonged by about 30 % ; the peak power of the microwave was enhanced by 3db
通過在裝置上做的兩種陰極的對比實驗，結果顯示:碳纖維陰極的使用，改善了電子束質量，使輻射微波的脈寬增加了30 %以上，輻射主瓣方向上的功率密度提高了3db以上，頻譜分佈較純凈，實現了微波的高效輸出。However the binary catalysts system favors low residue content. it was found that the residue content were remained at a low level with ethylene glycol as the reaction media and 6 % ( by mass ) of sulfuric acid as the catalyst in the presence of phenol. the contents of lipophilic products were investigated
經凝膠色譜法測定表明，以濃硫酸苯酚為催化劑、乙二醇為反應介質的反應體系，所得到液化產物的平均相對分子質量最低， m _ w為806 ， m _ n為799 。The composite roll of high speed steel has the synthetical life of over ten times more than traditional high cr cast iron roll. now the research and production of the high speed steel for roll are very drastic. in this thesis, the microstructure, heat treatment and performance of high speed steel fe - 2 % c - 4 % v - 4 % mo - 5 % cr - x % w ( wt ) are studied systematically by using metallograph, method of lattice, xrd, sem, eds and hardness
本文利用金相法（包括黑白金相和彩色金相） 、 x射線衍射（ xrd ） 、掃描電子顯微鏡（ sem ） 、能譜（ eds ）及洛氏硬度分析儀等手段，對復合軋輥用高速鋼fe - 2 c - 4 v - 4 mo - 5 cr - x w （其它部分如未作特殊註明均為質量分數）合金系的顯微組織、熱處理工藝及性能進行了系統地分析。Abstract : according to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed
文摘:利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料，對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒（ tsp ）及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理，分析了該地區浮塵、揚沙和沙塵暴形成規律，氣候變化特徵和賀蘭山的影響。According to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed
利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料，對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒（ tsp ）及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理，分析了該地區浮塵、揚沙和沙塵暴形成規律，氣候變化特徵和賀蘭山的影響。The correction of mass fractionation in the measurement of rhenium and osmium isotope ratios by icp - ms
電感耦合等離子體質譜法測量錸和鋨同位素比值的質量分餾校正The third, after theoretically analyzing, the following practicable methods are put forward : 1 ) automatically pick - up the synchronous information by analyzing the spectrum of intercepted video - leaking information ; 2 ) realizing the phase lock and the electronic image stabilization by integral - projection and differential - positioning ; 3 ) improving the effect of accumulation mean filter and the pectination filter by using electronic image stabilization ; 4 ) automatically adjusting image acquisition parameters by detecting the image entropy, therefore the quality acquired image is improved ; 5 ) to realize the quantitative test of a leaking extent, a standard test picture was designed. finally, a proto type for leaking information processing based on our techniques mentioned above and the virtual instrument principle was designed and tested
在理論分析的基礎上，提出了以下的實用技術： 1 ）用譜分析方法從截獲的信息中自動提取同步信息； 2 ）用積分投影、微分定位的方法進行相位檢測，實現可靠的鎖相和電子穩像； 3 ）將電子穩像技術用於重加濾波和梳狀濾波的濾波方法，改進了濾波效果； 4 ）通過檢測圖像信息熵實現圖像採集參數的自動調整，改進了圖像採集的質量； 5 ）設計了用於儀器定標的標準測試圖，可以對泄漏信息進行定量檢測。( 3 ) the possible mechanism of dissociation / ionization is analyzed, ( 4 ) it is shown that the main dissociation channel is non - resonant photodissociation of parent molecule followed by the further photodissociation or photoionization of the fragments. in chapter six, the rempi - tof - ms of acetaldehyde are investigated in the range of 279. 5 - 286. 5nm. the main results are : ( 1 ) the tof - ms and rempi spectrum of acetaldehyde are measured
第六章主要報道了乙醛分子在279 . 5一286 . 5nm范圍內的共振增強多光子解離一電離過程的實驗研究結果和分析結果，主要內容有: （ l ）實驗測定了乙醛分子的共振增強多光子電離的tof質譜和分質量的既mpi譜。To follow the current gsp specifications and decrees and codes on medicines, shanghai sunbow pharmaceutial co., ltd. chinese medicine herbal tablets factory invested more than 1 million yuan rmb in 1999 to rebuild the quality control room equipped with high - recision instruments, such as high - efficiency liquid chromatographic instrument, high - efficiency colour spectram meter for gas phse, automatic polarimeter and ultraviolet spectrophotometer. this provides a scientific guarantee for medicine production and storage and enables medicine to reach the international advanced level in monitoring of various indexes like the conteng of effective composition, content of heavy metals and residual pesticide content
為符合現有的gsp規范及藥品法規， 1999年上海虹橋藥業中藥飲片廠投資100多萬元改建了質量檢測室，配以高效液相色譜儀、高效氣相色譜儀、自動旋光儀、紫外分光光度計等高精密儀器，使藥品的生產和儲存有了科學的保證，並使藥品在有效成分含量、重金屬含量和農藥殘留量等指標監測上達到國際先進水平。Soil quality. determination of polynuclear aromatic hydrocarbons. method using high - performance liquid chromatography
土壤質量.多核芳香碳氫化合物的測定.高性能液相色譜法Soil quality - determination of polynuclear aromatic hydrocarbons - method using high - performance liquid chromatographic iso 13877 : 1998
土壤質量.多環芳烴的測定.高效液相色譜法The as - grown crystals were characterization by cutting and directional, x - ray diffraction, high resolution ohmmeter, ir transmission spectroscopy, visible light absorption spectroscopy, scan electronic microscopy ( sem ) and positron annihilate time technique ( pat ). the ir transmittance of czt single crystals grown with cd - riched is about 53 %, while 23 % with no cd riched
採用解理實驗、 x射線衍射、電學性能測試、紅外透過譜測試、可見光吸收譜測試、 sem蝕坑分析、探測器的試制等分析測試方法，並首次採用正電子湮沒壽命譜分析方法來研究czt單晶體的空位缺陷，綜合表徵了所生長的晶體的質量和性能。At last we introduce the realization of all the parts, the problem in the circuit design and the measured data. the results show that the designed system has met the requirement. in this dissertation, direct digital synthesis technology has been used in the phase - locked frequency synthesizer, which can make full use of the characteristics of direct digital synthesis technology such as flexible output wave shape and continuous
本課題將直接數字式合成技術用於鎖相頻率合成器中，該方法將直接數字合成的特點，如輸出波形靈活且相位連續、頻率穩定度高、輸出頻率解析度高、頻率轉換速度快、輸出相位噪聲低、集成度高、功耗低、體積小等與鎖相環路的頻帶寬、工作頻率高、頻譜質量好等優點有機的結合起來，從而在寬帶的條件下實現了比較好的雜散性能和相噪。Based on the combination of graph coloring model and the concept of spectrum quality grading, the proposed algorithm allocated the available spectrum to cognitive radio cells to meet demand maximally under qos guarantee
使用圖論著色模型，結合頻譜質量分級概念，根據小區內需求情況，該演算法將網路中周期檢測到的可用頻譜分配給各個認知小區，最大化滿足需求的同時，為業務提供服務質量保障。Fingerprint graphy : chromatographic fingerprint, as extended progress of conventional identification of chinese herbal medication, is nowadays gradually applied to quality assessment of tcm preparations and at the same time it is under heat debate
指紋圖譜部分：作為中藥材常規鑒別的延伸，色譜指紋圖譜質量控制的模式，現在逐步受到重視。同時也引起熱烈的爭論。Standard method of assessing the spectral quality of daylight simulators for visual appraisal and measurement of colour
顏色的視覺鑒定和測量用日光模擬器光譜質量評估的標準方法Analysis of improving the quality of frequency spectrum of twt - transmitter
改善行波管發射機頻譜質量的分析分享友人