射電譜線 的英文怎麼說
中文拼音 [shèdiànpǔxiàn]
射電譜線
英文
radio line-
" for his discovery of the doppler effect in canal rays and the splitting of spectral lines in electric fields
發現極隧射線的多普勒效應以及電場作用下光譜線的分裂現象The electronic temperature, intensities of all lines and continuous spectra gradually increased with the increment of laser energy, and they got to maximum at different laser energy. our results of copper and aluminum show that there are possibly different thresholds of laser energy to electronic temperature and intensities of emission spectra of laser ablated plasma. at the different environmental gas pressure, spatial emission intensity distribution is explained by the competition among " heat reservoir effect ", " confined effect " and " s hadow effect "
認為cu等離子體羽的發光機制是由電子與粒子的碰撞傳能、電子與離子的復合形成的；隨激光能量的增加， cu等離子體特徵輻射（分立譜） 、連續背景輻射（連續譜） 、電子溫度都出現最大值；結合對al的實驗結果說明：激光燒蝕金屬產生的等離子體，其特徵輻射、連續輻射、電子溫度可能都存在一定的能量閾值；背景氣壓對激光燒蝕等離子體譜線的影響，其機理可以認為是「熱庫效應」 、 「約束效應」及「陰影效應」相互競爭的綜合結果。( 2 ) the emission spectra of laser ablation metal copper plasma were measured. the detailed mechanism of plume emission of cu plasma was qualitatively explained using a simple model based on excitation of atom and ion in plume arising from inelastic collision between the elemental species and electron with high kinetic energy. under the local thermal equilibrium model, the electronic temperature of copper plasma was deduced to be in the 104 scale by its emission lines
（ 2 ） cu等離子體光譜：在420 570nm波長范圍內觀測了激光燒蝕cu等離子體的光譜和各發射譜線在等離子體中的空間分佈；比較了激光能量對cu等離子體發射光譜、電子溫度的影響；用局部熱力學平衡（ lte ）近似，測得cu等離子體的電子溫度為104k數量級；在不同背景氣壓下，觀測了激光燒蝕cu等離子體光譜的空間分佈。The isoelectronic system of gap : n has been investigated extensively in the dilute limit since 1965. thomas et al identified that a series of sharp emission lines in gap : n were due to the recombinations of excitons bound to either isolated nitrogen centers or various nitrogen pair centers
這些譜線來自於等電子雜質n形成的束縛激子態（孤立n中心和nn _ i對）輻射復合產生的零聲子線及其聲子伴線。The radio spectrum ? the segment of the electromagnetic continuum containing waves in the radio - frequency range ? accommodates countless communications devices today
無線電頻譜（一個連續的射電頻率范圍區段）容納了今日無數的通訊頻率。The effort of manganese removal was studied and the kinetics of manganese removal was tried to establish. the factors of dissolved oxygen concentration, fe2 + concentration, ph, p concentration and closing of the filter were studied to evaluate their effort for biological manganese removal, and the correlation of residual manganese and oxidation - reduction potential was also discussed. as the iron content of water was high, experiment results showed that the reaction was zero order, as the iron content of water was low, the reaction was first order. the time needed for the cultivation of biological manganese removal was 60 70 days. the filter operated at the filtration rate of 8 10m / h, silica sand of effective size 0. 95 1. 25mm filled the filter to a depth of 1200mm
試驗結果表明，成熟后濾砂表面濾膜的x射線衍射圖譜與mno _ x ? 5h _ 2o （ x = 1 . 86 ）的x射線衍射圖譜一樣，濾膜成熟后的結構在進水物質不發生變化的情況下不發生變化;合適的碳磷比對生物除錳有明顯的促進作用，試驗條件下的投磷量不會對出水造成二次污染;生物除錳需要亞鐵的參與，亞鐵的存在除了能夠促進微生物分泌胞外酶並刺激其活性外，還通過鐵離子的變價傳遞電子，催化錳離子的氧化反應，從而促進對二價錳的降解。Deliberate radiation or reradiation of electromagnetic waves so as to impair the usefulness of a specific segment of the radio spectrum that is being used by the enemy for communication or radar
人為地輻射或反向輻射電磁波，使一段特定的無線電波譜的可用性削弱，而這一波譜段是由敵人的通訊或雷達所使用。By analyzing the microstructure of as - cast alloys with different surplus of samarium added, the optimum surplus of samarium is decided. by comparing the microstructure of the alloys annealed for different time, the ideal and economical annealing time is confirmed. the microstructure and phase composition of alloys during the whole preparation of sm2fe17nx are analyzed using the scanning electron micrograph with energy - dispersive x - ray analysis and x - ray diffraction patterns
本論文首先就熔煉工藝參數對鑄態組織微結構的影響進行了探討，並制定出一套較為合適的熔煉工藝；通過對不同釤加入量的鑄態組織微觀結構的觀察分析，確定了原料配置過程中釤的最佳補償量；通過對採用不同退火時間的合金組織進行比較，確定了理想、經濟的退火時間；同時還利用掃描電子顯微圖像和x射線衍射圖譜，比較了整個制備過程中，試樣微結構和相組成的變化情況。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。Polysaccharides are main energy sources of human body and possess some important physiological functions. in this paper, polysaccharides were used as the soft templates in synthesizing selenium nanoparticles which were produced with the reduction of selenious acid by ascorbic acid. the effect factors of synthetic reaction were studied and selenium nanoparticles obtained were characterized
本文以幾種生物多糖為軟模板，採用抗壞血酸還原亞硒酸的方法合成納米硒，研究了制備反應的影響因素，得到了多種形貌的納米硒，並採用光譜法、透射電鏡、掃描電鏡、 x射線衍射等方法對產物進行了表徵。The epitaxial growths of ingaas / gaas / algaas fundamental material and the fabrication of 45 - deflector are extensively studied in our work. some measuring methods are used to evaluate the growth quality of our grown structure by pl, cv, x - ray double crystal diffraction, sem etc. property analysis are provided for it
利用高能電子衍射、電化學c - v 、掃描電鏡（ sem ） 、 x射線雙晶衍射儀、光熒光譜儀（ pl ） 、原子力顯微鏡等多種方法對制備的器件進行了檢測，同時對實驗結果進行了必要的分析。This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller
本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上，將通信理論中的直接序列擴頻技術（ dsss ）用於解決低壓電力線通信的干擾問題，主要研究內容如下： （ 1 ）用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析，分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析，驗證dsss技術在本系統中的可行性； （ 2 ）由dsss技術對濾波系統的要求，根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路； （ 3 ）用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路，構造出低壓電力線載波通信系統，並採用atmel公司的單片機設計了接收和發射電路的微控制器； （ 4 ）分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗，並對結果進行分析，驗證了dsss技術對干擾信號的抑制作用。Within 3mm of near the al target, there were the continuum spectra and the line emissions, the former was produced by bresstrahlung and compound of electrons, the later came from the excited state of al, al + and al2 +. in order to analyze the shape of the aluminum resonant double lines, al 1396. 15nm and al i394. 40nm, relative intensities of the double lines were acquired by integrating the area under the double lines, respectively
在近靶面3mm左右的范圍內， a1等離子體的發射光譜主要是連續輻射形成的連續譜和疊加於連續譜上的分立譜，其中連續輻射主要由電子的韌致輻射和復合輻射產生， a1原子譜線比離子譜線在空間上分佈范圍更廣。These instruments can be divided into three categories, chromatographic separation methods including gas chromatography, liquid chromatography and ionic chromatography, spectrometric methods including atomic absorption, ultraviolet / visible absorption, infrared spectrometry, atomic emission spectrometry and fluorescence method, and electroanalytical methods including potentiometry, coulometry and voltammetry methods
如層析法中的氣相層析、液相層析及離子層析，光譜法中的紫外光可見光光譜法、原子吸收光譜法、紅外線光譜法、螢光光譜法、放射光譜法及拉曼光譜法，及電化學方析方法如電位法、庫倫法及伏安法等。The composition, structure, and properties of the as prepared composite films have been characterized in detail by uv - vis, ftir, and x - ray photoelectron spectra, ellipsometry, scanning electron microscopy, atomic force microscopy, transmission electron microscopy, fluorescence spectroscopy, and standard four - probe technique
採用uv - vis光譜、 ftir光譜、 x -射線光電子能譜、橢圓光度法、掃描電子顯微鏡、原子力顯微鏡、透射電子顯微鏡、熒光光譜和標準四探針技術對所制備的納米復合膜進行了組成、結構和性能表徵。Then some cavity quantum electro - dynamic ( cqed ) effects are studied by experiment. the photoluminescence ( pl ) intensity enhancement at resonance wavelength and suppression at off - resonance wavelength, emission spectrum narrowing as well as emission intensity redistribution in space are observed in the microcavity device fabricated with distributed bragg reflector ( dbr ) and silver mirror as well as that done with two silver mirrors
分別在帶有dbr結構的平面微腔及全金屬鏡構成的平面微腔中觀察到了諧振模式處的輻射增強及非諧振模式處的輻射抑制，發射譜線窄化以及輻射強度空間分佈重組等腔量子電動力學現象。Based on the viewpoint of interaction between waves in plasmas, the partial differential equation that causes the spectral lines broadening has been deduced from radiation transfer equation of high - frequency electromagnetic waves in plasmas. the numerical solution has been obtained by using the fortran program we compiled. we concretely calculated the spectral lines widths of and fraunhoferx 3704 in corona, fj / a4923. 9 in dwarf nova oy car and f. / a4934 in the variable star rr lyrae
本文從等離子體波與波相互作用觀點出發，由高頻電磁波輻射轉移方程導出了引起譜線寬度變化的偏微分方程，編寫fortran程序求解偏微分方程的數值解，具體計算了日冕綠線f _ exiv 5303和夫朗禾費線3704 、矮新星oycarf _ eii 4923 . 9 、天琴rr型變星f _ ei 4934的譜線加寬值，對以上各譜線加寬中的等離子體致寬效應作了初步計算。In this thesis, the physical properties of a series of na2fepo4f cathode materials synthesized by various routes are instigated and discussed in the light of structural ( xrd ), thermal ( dta ) analyses and particle size distribution. their microstructures were studied by transmission electron microscope ( tem ) and scan electron microscope ( sem ). the electrochemistry property were evaluated with cells containing the synthesized na2fepo4f as positive electrode
本文將藉助x -射線衍射、掃描電鏡、透射電鏡、差熱分析以及電化學測試等方法，系統研究多種制備法對所合成的鈉離子二次電池正極活性材料氟磷酸亞鐵鈉的微結構以及循環可逆容量、循環伏安性能、交流阻抗譜的影響。The effect of growth parameters on the morphology, structure and chemical compositon of sic whiskers have been characterized by x - ray diffraction ( xrd ), scanning electron microscope ( sem ), energy dispersive x - ray spectroscopy ( eds ) and transmission electron microscope ( tem )
運用x射線衍射（ xrd ） 、掃描電子顯微鏡（ sem ） 、電子能量色散譜（ eds ） 、透射電子顯微鏡（ tem ）等表徵手段，系統研究了工藝參數對sic晶須形貌、結構和化學成份的影響。Furthermore, we compared the mechanical properties between the modified nano - cac03 / pp and unmodified nano - cac03 / pp. we have investigated the composites by means of mechanical testing, dsc, xrd, ft - ir, tem, sem, etc. the relation between the structure and property of the composites has been discussed in this thesis. we studied the nano - particles by means of ls particles size analysis, we also studied the modified nano - cac03 by means of ft - ir
論文中對caco _ 3粒子進行了粒度與比表面測試分析，對經鈦酸酯偶聯劑表面改性的納米caco _ 3粒子進行了紅外吸收光譜分析，對改性后的復合材料進行了力學性能測試、差熱掃描量熱分析、 x射線衍射譜、紅外吸收光譜、透射電鏡、掃描電鏡等分析，討論了樣品中結構和性能之間的關系。分享友人