pna 中文意思是什麼
pna
解釋
PNA ＝pentose nucleic acid 【生物化學】戊糖核酸。-
Applications : xdsl, hfc, home pna, stb, cable modem etc
電纜數據機等通信設備中。 -
During his meeting with abbas, sheikh khalifa reiterated his country ' s " firm " stance in the support of the palestinian people as well as the pna led by abbas
在同阿巴斯的會談中，哈里發反復強調他的國家對巴勒斯坦人民和阿巴斯領導的權威機構不變的支持。 -
Much attention has been shown to para - nitroaniline ( pna ) for its strong nonlinear optical response
硝基苯胺（ para - nitroaniline ）分子由於具有較強的非線性光學響應而受到理論工作者和實驗工作者的廣泛關注。 -
An expert intelligent pna measurement system
系統非線性測量裝置 -
First, the geometry of pna molecule in gas phase is optimized on the base of density functional theory
首先在密度泛函理論基礎上優化了汽相下pna分子體系的幾何結構。 -
In this thesis, the nonlinear optical properties of pna molecule are thoroughly studied
因此，本文以pna分子作為研究對象，對該分子的非線性光學性質進行了更深入的研究。 -
The nonlinear optical properties of pna molecule in gas phase are studied on the base of time dependent density functional theory
本文在含時密度泛函理論基礎上研究了汽相下pna分子體系的非線性光學性質。 -
Then, the nonlinear optical properties of pna molecule are studied by using time dependent density functional theory and few states approach
然後運用含時密度泛函理論及少態方法對pna分子體系的非線性光學性質進行了理論研究。 -
The solvent effects on the nonlinear optical properties of pna molecule are also chiefly studied on the base of time dependent density functional theory
本文還在含時密度泛函理論基礎上著重研究了溶劑效應對pna分子的非線性光學性質的影響。 -
Finally, we show that is a semilattice of groups congru - ence if and only if ( na ) u is a seminormal subsemigroup on 5, where pna is a group congruence on the semilattice congruence class sa of 5
在這一章的最後文章緒出了半群s上的半格同燃so上的群同余pno的並i 』 upe成為s上的群的半格同余的充分必要條件為u （ na切oeyoey是s的半正規子半群 -
The circulation of positive pna index pattern is prominent in the case of persistent forcing of negative ssta in west wind drift region or positive ssta in tropical eastern pacific, which is the typical ssta pattern during el nino peak - mature phase
西風漂流區持續負ssta時或者熱帶中東太平洋持續正ssta時，阿留申低壓均有所加強，正pna指數型的大氣環流特徵顯著。而當相反符號的ssta持續作用時，大氣中阿留申低壓減弱，對應pna指數為負。 -
On base of results above, composite model of ssta in pacific and circulation anomaly are constructed for analysis their evolution. during mature phase of el nino usually in winter, positive ssta dominates in tropical eastern ocean and negative ssta dominates in west wind drift district in mid - latitude ocean, correspondingly the pna index of 500 hpa geopotential height is positive which means the aleutian low gets strong, and the situation is somewhat inversely during la nina phase of ssta
合成位相反映了太平洋ssta演變特徵，以及相對應的大氣環流異常特徵：當西風漂流區處于暖態而熱帶中東太平洋海溫偏低時，合成大氣模型當中阿留申低壓減弱， 500hpapna指數為負異常；當西風漂流區處于冷態，熱帶中東太平洋處于暖態（ elnino峰值?成熟期ssta典型分佈） ，合成大氣模型中阿留申低壓加強， 500hpapna指數為正異常。 -
Major products : water quality testing monitoring instrument : ph meter, conductivity meter, tds meters, orp meter ; pna meter, salt meter ; rotary speed measurement of the machinery manufacturing equipment : many functions tachometer ; air quality testing instrument : thermometer, hygrometer ; others : refractometer, water pump
主要產品：水質檢測監控儀： ph酸度計ec電導率儀tds計orp氧化還原計鈉度計鹽度計機械製造設備轉速測量：多功能轉速表光電轉速表空氣質量檢測儀：數字溫度計溫濕度表光學檢測儀器：折射儀以及污水潛水泵。 -
Secondly, the nonlinear optical properties with pna molecule in different solvents are studied through using the polarized continuum model and few states approach on the base of time dependent density functional theory, and the first order nonlinear hyperpolarizabilities in second harmonic generation process are computed
然後在含時密度泛函理論基礎上採用極化連續模型和少態方法研究了不同溶劑中pna分子的非線性光學性質，計算了二次諧波振蕩過程的一階非線性超極化率，並討論了pna分子的非線性光學性質與溶劑極性之間的關系。 -
1. the kinetics of naphtha catalytic reforming reactions are studied and a kinetics - based reaction model with only 17 lumps consisting of pna ( paraffins, naphthenes and aromatics ) and 17 reactions is developed according to the character and applying conditions of domestic industrial reformers
研究了催化重整反應機理，針對國內工業重整裝置的特點和應用條件，提出了只包含17個重整反應的17集總反應動力學模型，保證模型較高精度，並降低機理模型復雜度和化驗室分析要求，方便了模型工業應用。 -
The polarized continuum model is used to simulate the influence of the solvent environment on the solute molecule. in the first place, the geometry optimization of pna molecule in each solvent is redo by using the polarized continuum model on the base of density functional theory
首先，在密度泛函理論基礎上採用極化連續模型重新優化了pna分子在每種溶劑中的幾何結構，研究了不同溶劑對pna分子的幾何結構的影響。 -
At first we get an equivalence characteristic of the numerical range : w ( a ) = jpn ? pn w ( pna en ). from the definition of the quadratic numerical range, we can see that the quadratic numerical range depend on the space decomposition. from contrast, we can see that the quadratic numerical range gives a better information about the localization of the spectrum than the numerical range, perhaps just because of this, the quadratic numerical range of an operator need not to be convex, and even that the quadratic numerical range of an operator need not connected, then we give a condition under which the quadratic numerical range of an operator is not connected
為了對數值域的本質有更進一步地了解，首先根據toeplitz - hausdorff定理的證明方法，得到了數值域的一個等價刻畫： w （ a ） ： u _ （ p _ n p _ n ） w （ p _ na | e _ n ） ，接著引入了二次數值域的定義，從二次數值域的定義我們可以看出，一般說來，在不同的空間分解下，一個運算元的二次數值域也會截然不同，但是當所給的兩種空間分解有某種關系時，它在這兩種空間分解下的二次數值域是相等的。 -
The action of kidnapping the three britons was widely condemned by palestinian militants, the palestinian national authority officials, international organizations and pna security chiefs
一所著名美國學校的荷蘭校長和澳大利亞副校長上周在加沙北部地區被綁架，他們在數小時后就獲得了釋放。 -
Palestinian president mahmoud abbas wrapped up his two - day visit in the united arab emirates ( uae ) sunday afternoon after obtaining uae ' s reassurance of its support for his palestinian national authority ( pna )
巴勒斯坦總統阿巴斯在獲得阿聯酋對其國家權威機構的支持後於周日下午結束了其對阿聯酋為期兩天的訪問。 -
Singular value decomposition ( svd ) analysis shows significant correlation exists between pacific ssta pattern similar to peak - mature phase of el nino event and remote response pattern of pna and wp in 500 hpa geopotential height, which is further confirmed by svd analysis between ssta and 850 hpa wind fields
太平洋ssta與大氣500hpa高度場異常的svd分析表明，太平洋海溫狀況與pna以及wp遙相關型存在密切的相關，而850hpa風場與太平洋ssta的svd分析進一步反映了海溫異常與大氣遙相關間的聯系。
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