x-element 中文意思是什麼
x-element
解釋
x成分-
Using the multi - configuration dirac - fock method ( mcdf ), we studied the characteristic of the decay processes of the 4d core excited states of csiv, the low - lying excitation structure of super - heavy element bohrium ( z = 107 ) and the x - ray spectra of the 3d - 4f transitions of highly charged xenon ions in details in this work, by including the electron correlation and the relaxation effects systematically
本論文運用mcdf方法，通過系統考慮電子相關效應和馳豫效應，分別研究了cs離子的4d內殼層激發態衰變動力學特性，超重元素bh （ z = 107 ）的低激發態結構以及高離化態氙離子的3d - 4f躍遷產生的x射線譜的結構等問題。 -
To decrypt an xml element with an x. 509 certificate
用x . 509證書對xml元素進行解密 -
The probability of finding the particle in the volume element at point(x. y. z. )with edges dx. dy. dz is as follows.
在點（xyz）具有邊dx，dy，dz的體積元內找粒子的幾率如下。 -
X is killed by some non-zero element of a.
X被A中某個非零元零化。 -
Consisting of the protracting graph of hydrogen - like atom ' s angle distributing, computer simulation of the symmetry of molecular orbital and chemical reaction mechanism, showing the molecular point group and symmetry element, computer simulation of molecular vibration, bravias ' s crystal lattice and their transforming, extracting of plane periodic lattice, extracting of solid periodic lattice, close packing of isometrical pellet and the structure of simple mental substance, close packing of unequal pellet and crystal structure of representative ionic crystal, computer simulation of phase analysis by x - ray diffraction
內容包括類氫原子角度分布圖的繪制，分子軌道對稱性和反應機理的微機模擬，分子點群和對稱元素顯示，分子振動運動的微機模擬，布拉維晶格和晶格轉化，平面點陣抽取，立體點陣抽取，等徑網球的密堆積和金屬單質結構，不等徑圓球密堆積和典型離子晶體結構， x射線多晶衍射的微機模擬十個子模塊。 -
The main element analysis of whole rocks, the ree analysis and the trace element analysis have been done for the granitoid samples in this area. the chemical composition analysis has been done for the amphiboie and biotite minerals. the epma and x - ray powdered crystal diffraction have been done for k - feldspar, plagioclase, amphiboie, biotite, quartz, magnetite, titanite
對本區花崗巖類樣品進行了全巖主量元素、稀土元素及微量元素分析，對角閃石和黑雲母單礦物進行了化學成分分析，對鉀長石、斜長石、角閃石、黑雲母、及石英、磁鐵礦、磷灰石和榍石進行了電子探針和x射線粉晶衍射分析。 -
In this thesis, previous research works on mg - based hydrogen storage materials have been reviewed. on this basis, the following works have been carried out : firstly, the part of ni in mg2ni alloys was partial substituted by the transition element cr. the effect of element cr and mechanical alloying on the phase structure and hydrogen storage properties of mg2nii. xcrx ( x = 0, 0
本文在對國內外鎂基儲氫材料的研究進展進行了文獻綜述的基礎上，著重對以下兩方面內容進行了研究： （ 1 ）用過渡族元素cr對mg _ 2ni合金進行了元素替換，研究了mg - ni - cr三元合金的晶體結構、微觀特徵以及吸氫動力學性能。 -
The authors studied the characteristics of element geochemistry, mineral assemblage and microtexture of the white reticulate clay in the quaternary laterite of the dongting basin with some experimental analysis methods, such as chemical analysis, x - ray diffraction analysis, ir and sem analysis. the genesis of the vermiculate reticulate clay and the rhizomatic reticulate clay in the quaternary laterite of the dongting basin are discussed. the formation of crannies or holes in the soil and the transference of soil elements are absolutely necessary conditions to form the white reticulate clay in laterite
在野外考察的基礎上，運用化學全量分析x射線衍射分析紅外光譜分析和掃描電鏡微形貌分析等實驗方法和手段，對洞庭盆地第四系紅土地層中網紋的元素地球化學礦物組合特徵和微形貌特徵進行了系統研究，對洞庭盆地紅土地層中2種主要的網紋類型蠕蟲狀網紋和根狀網紋的成因進行了探討。 -
Cadmium zinc telluride ( cd1 - xznxte or czt ) single crystal is one of the three element compound semiconductor materials with great performances used for the detection of x - ray and gamma - ray at room temperature
碲鋅鎘（ cd _ （ 1 - x ） zn _ xte ，簡寫czt ）單晶體是一種性能優異的三元化合物半導體室溫核輻射探測器材料，具有閃鋅礦型的面心立方結構。 -
The software ansys6. 0 is used to analysis the stability of the state after construction of tongwamen bridge, linear method is used in analyzing the finite element model of the bridge, the coeffient of stability of different state after construction is given. on the basis, the effect of different factors such as the arrangement of lateral brace, the sloping angle of arch ribs, the stiffness of bridge deck system, the effect of non - orientedly conservative loadings of the hanger and tie bar etc is discussed. the different coefficients of stability of changing these factors are given, so the factors that are vital to the lateral stability of x - type arches are found, and the rationality of the methods taken to enhance the lateral stability of tongwamen bridge is evaluated
本文應用有限元分析商業軟體ansys6 . 0 ，採用線彈性方法，通過對該橋的空間有限元模型進行穩定性分析，得出其成橋運營階段各種工況下的穩定安全系數。在此基礎上，本文還通過有限元模型分析，就拱的矢跨比、吊桿（立柱）的非保向力效應、橋面系的剛度、橫撐布置形式、拱肋側傾角等因素對該橋整體穩定性的影響展開探討與研究。文中給出了各因素變化情況下的穩定安全系數，指出了對鋼管混凝土提籃拱橫向穩定性有顯著影響的因素及其合理變化范圍，並對銅瓦門大橋提高橫向穩定性的措施的經濟合理性進行了分析。 -
Element represents an issuer name and serial number pair, which identify a specific x. 509v3 certificate
>元素表示用於標識特定x . 509v3證書的頒發者名稱和序列號對。 -
On account of qpm can take advantage of the largest element of x tensor, and any interaction with transparency range of the material can be noncritically phase matched without walk - off angle. therefore, the conversion efficiency in longer crystal may be improved
由於準相位匹配可利用非線性光學晶體最大的二階極化張量元，在晶體的整個通光范圍內均可實現非臨界相位匹配，在較長的晶體上可望實現較高的變頻效率。 -
At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength
由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。 -
The main contents are as followings : ( 1 ) the rules of choosing characteristic lines of fe and ni elements in the cu - pb alloy are investigated ; ( 2 ) the characteristic line of the impurity element and that of the reference element makes up a line pair. the intensity ratio of the line pair measured as an y - axis and the corresponding concentration ratio as x - axis, calibration curves for composition analysis is fitted at the 4 kinds of buffer gases
Q ）採用內標法，由樣品中雜質元素的分析線和內標元素參考線組成分析線對，對五種不同的鉛黃銅樣品，實驗通過測定了雜質元素分析線隊的強度比，以分析線對的強度比為縱坐標、分析線對所對應元素的含量比為橫坐標，擬合出了一系列在四種緩沖氣體中的定標曲線。 -
X - ray has been widely used in industry and medicine since it was found in 1895, such as nondestructive detection of cavities in objects using x - ray " s property of penetration, trace element analysis using x - ray fluorescence, radiation therapy using x - ray " s ability to damage protein, and so on
X射線源在生產和醫療上一直以來具有廣泛的應用。利用x射線的穿透性可進行無損探傷；利用x射線的熒光效應可對物質進行痕量分析；利用x射線使蛋白質變性可對腫瘤進行放療。 -
The present results indicate that the diamond element always yields the highest heat transfer, followed by cube and waterdrop pin - fin. however, the pressure drop for the diamond pin is higher compared to the cube and waterdrop pin - fin. arrays with geometric parameters x / d = 2. 7 elements generally cause the greater heat transfer and pressure loss than those with x / d = 3. 3 and x / d = 4
研究結果表明：鉆石形擾流柱排換熱最強，方形次之，液滴形最弱，相應地鉆石形擾流柱排壓力損失也最大，方形次之，液滴形最弱；小間距（ x / d = 2 . 7 ）在換熱較強的同時壓力損失也高於其他兩種間距。 -
That the alloying element mn and ti substitutes the atom of fe in the rich iron - phase ( al, si, fe ) and resumes the part of the element si in primary phase refines the second phase. at the same time, the volume percentage of second phase is increased. at the course of solidification, the alternating current field changes obviously the microstructure morphology of the al - 20si - 5fe - x alloy and the number of particle eutectic structure is increased
合金元素mn 、 ti通過占據富鐵相（ al ， si ， fe ）中鐵原子的晶格位置，同時消耗部分初生相中的si元素，形成四元富鐵相（ al ， si ， fe ， mn ） ，細化了合金中的第二相，同時提高第二相體積百分數。 -
A block design is a triple d = ( x, b, i ), where x is a finite set ( the point set ) of order v, b is the block set and / is the incidence relation between x and b. for the given block design d, if all the blocks from x, which have the same type of the blocks in b, can be partitioned into some bi, such that each ( x, bi, i ) is a block design with the same parameters and the same type as d, then { ( x, bi, i ) } i is called as large set of d - design of order v. on the other side, let | x | = v, | y | = v + 1, and x y, if all the blocks of the same type from y can be partitioned into some bx, such that each ( y { x }, bx, i } is a block design of order v for any element x y with the same parameters and the same type as d, then { ( y { x }, bx, i ) } x is called an overlarge set of d - design of order v. in this thesis, we discuss the existence problem about some types of large sets and overlarge sets
一個區組設計是由兩個有限集合x ， b及它們之間的關聯關系i組成的，記為d = （ x ， b ， i ） ，其中x為v元集， b為區組集，對于指定的設計d ，若x上與d相應的全部構形可分拆為若干個b _ i ，使得每個（ x ， b _ i ， i ）皆為一個與d同參數同類型設計，則稱這些b _ i構成一個v階d -設計的大集。若v元集x是v + 1元集y的一個子集，而y上與d相應的全部指定構形可分拆為若干個b _ x ，使得每個b _ x恰是y { x }上的一個與d同參數同類型的設計（其中x y ） ，則稱這些b _ x構成一個v階d -設計的超大集。本文中討論了一些區組設計的大集及超大集。 -
Hot shock and cathode electrolysis experimental results indicate the interface adhesion strength between coating and aluminum matrix is excellent. the element electronic probe image provide that the two composition are co - deposition ; structure analysis by xrd ( x - ray diffraction ) demonstrated that cr exists in the way of solid solution in the coating
Sem和金相觀測結果表明浸鎳后鍍層結晶緻密、厚度均一；熱震及陰極電解結果說明鍍層與基體結合牢固緊密；鍍層元素電子探針掃描圖說明鎳鉻兩種元素均勻沉積； xrd分析證明鍍層中鎳鉻以固溶體的形式存在。 -
In order to overcome problems arisen from the application of x fluorescence analysis into complex spectrum produced by archaeological ceramic fragments with multi - element, low content and thick ground, we have employed the artificial neural network into the research of x fluorescence archaeology and conducted three kinds of research works. as the first one, we have applied the linear olam network ( optimal linear association memory network ) and the non - linear bp network ( back - propagation network ) respectively to analyze the complex x fluorescence spectrum of archaeological samples, and taken both results of spectrum analysis to compare with each other. the second, the method of pattern recognition of bp network was tentatively used to perform intelligent identification of production places of these archaeological samples
針對科技考古中對大量考古陶片進行產地研究時x熒光分析對多元素、低含量、厚基底考古陶片產生的復雜譜分析的問題，將人工神經網路引入x熒光考古中，進行了三方面的研究工作：一是用線性olam網路（最優線性聯想網路）和非線性bp網路（誤差反傳導網路）分別對考古樣品的x熒光復雜譜進行解譜，並比較二者的解譜效果；二是用bp網路模式識別方法對考古樣品的產地進行智能識別；三是為了提高網路運算的可靠性和減小基體效應及電噪聲的干擾和影響，研究並提出了三種網路學習前的譜數據預處理方法。
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