格子常數 的英文怎麼說
中文拼音 [gézichángshǔ]
格子常數
英文
lattice co tant-
A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time
本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算，多重網格法利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序，驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較，可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效率，縮短了計算時間，因此為后續計算打下了良好的基礎Affect on magnons energy spectrum of ferrimagnetism two - dimensional rectangle lattice by lattice coefficient
晶格常數對亞鐵磁性二維長方晶格磁振子能譜的影響Texas instruments incorporated, “ understanding buck - boost power stages in switchmode power supplies ”, march 1999
宋自恆、林慶仁」功率因數修正電路之原理與常用元件規格」 ，新電子科技雜志第217期， 2004年4月號。By home analyzing the experiment result, we think that the covalent bond is more than the electrovalent bond in y - fe _ ( 2 ) o _ ( 3 ) crystallites. it is the dominating reason that the dependence of y - fe _ ( 2 ) o _ ( 3 ) crystallites grin size on lattice constant is differ from one of the ionic crystallites
通過對實驗結果的進一步分析，我們認為其主要原因是在丫一fezo3中原子之間結合的共價性超過了離子性，因而導致了它們的晶格常數隨晶粒線度的變化趨勢和離子晶體正好相反。Operations guide : click play entered the game, select the first one, the use of sub analogy, you have a portrait of two chutes, blue for health, yellow for the physical, a key to the roundabout hack, and s keys to normal hack, and d keys to xiapi, with the normal direction of the same key, k enter the name of the game : welcome 4455 miniclip games network, the site domain name to remember : 4455. cc and 3839. cc
操作指南：點擊play進入游戲，選擇第一關，以次類推，你的頭像有兩個槽，藍色為健康，黃色為體力a鍵為迴旋砍， s鍵為正常砍， d鍵為下劈，方向鍵與正常相同，空格鍵為撞擊對手，游戲中還會有4片金子收藏，游戲后會獲得積分啊：此外，打碎一些箱子會有救命藥水來補充，其中黃色藥水是體力補充，使用時按數字小鍵盤的「 1 」 ，藍色藥水是健康補充，按「 2 」 ，紫色藥水為隱身，按「 3 」即可，有時間限制的，可以看你的頭像啊。Lattice bgk ( lbgk ) method is a very novel numerical method. it develops on the basis of the lattice gas automaton. the successful simulations of fluid flow by the lbgk method have demonstrated its wide applications in the computational fluid dynamics
Latticebgk ，簡稱lbgk ，是一種非常新穎的數值計算方法，它在格子氣（ latticegasautomaton ，簡稱lga ）的基礎上發展而來，並已在計算流體力學中得到廣泛的應用，它可以用來模擬各種流動現象。Of photonic crystals with different lattice constants
不同晶格常數光子晶體構成的The theoretical results are in good agreement with the experimental ones qualitatively. however, as to y - fe _ ( 2 ) o _ ( 3 ) nanocrystallites, the lattice constant increases with the decreasing of the grain size. it is opposite to the result of ionic crystallites
然而，丫一f勺偽納米微粒的晶格常數隨著晶粒線度的減小而增大，與我們實驗和理論中對離子晶體所討論的結果恰好相反。The phase structure, the lattice constant, crystal grain diameter of the samples was obtained by the x - ray diffractions ( xrd ) spectra. their relations are showed respectively. influence of grain size on the lattice constant of several kind of phase structure was studied theoretically by interaction energy between atoms in nanocrystallites
其次，從結合能的角度出發，研究了nacl結構和cscl結構的離子晶體，面心立方（ fcc ） 、體心立方（ bcc ）金屬晶體以及簡立方（ scc ） 、面心立方（ fcc ） 、體心立方（ bcc ）結構分子晶體的晶粒線度對晶格常數的影響。The factors affecting the in - plane thermal conductivity of thin films discussed include the mass of particles, the well depth, and the lattice constant, etc
從粒子質量、勢阱深度、晶格常數的變化等方面討論了其對薄膜兩種材料的切向導熱系數的影響。The paper puts forward the clustering algorithm includes : clustering based on grid and iterative, enhanced clustering algorithm base on density and k - medoids, enhanced k - means algorithm ( optimize chooseing consult _ points in iterative process ), enhanced clustering algorithm base on distance. they can overcome many limitations ( some traditional algorithms terminate in local optimization. many results of cluster are roundness, too many times in partition iterative process ), which are related to the static architecture of traditional model
在傳統聚類演算法的基礎上，結合我們科學數據挖掘的應用對象?分子動力學數據，提出了迭代網格聚類演算法， k -平均和基於密度結合的聚類演算法，迭代過程中優化選擇中心點的k -平均方法，以及改進型的基於距離的聚類演算法等模式識別方法，能夠解決傳統演算法帶來的諸多問題（比如一些傳統的聚類演算法常常收斂于局部最優，發現都模式都趨近於球形，劃分方法中迭代次數過多帶來的效率問題） 。In this paper, chroma dc coefficients are selected as the carrier data because chroma dc coefficients are robust. also, alterable steps are used to select one part of the coefficients, so the watermark is imperceptible ; before watermark embedding, the watermark is divided into many parts, every part is individually embedded into one gop of the video, even if a gop is destroyed, the watermark can be extracted correctly, this methods promotes the robustness of the watermark ; in addition, in order to promote the security of the watermark, the user ' s id and password are used to generate chaos sequence by the chaos system which is created in this paper, later, watermark is mixed by the chaos sequence. also, the embedding position of the watermark bit is modified by one chaos sequence, so, unauthorized person can not extract or remove the watermark, since the embedding position is unknown
本文認為，色度dc系數是魯棒性非常好的參數，因而選擇色度dc系數作為水印信息載體，同時，採用可變的步長選擇部分系數，保證了水印的隱形性；在嵌入水印時，本文採用水印信息「網格劃分」 、各子塊獨立嵌入視頻的方案，由於水印信息子塊是相對獨立的嵌入視頻中的每一相對獨立的圖組當中，即使某一圖組收到一定破壞，也能夠恢復水印信息，使水印的健壯性得到提高；此外，為了提高水印信息的安全性，在嵌入水印信息時，根據用戶輸入的id號和密碼，利用本文構造的混沌系統產生的混沌序列對水印信息進行變換，同時，對每一水印信息比特的嵌入位置也採用了偽隨機序列進行調整，這樣，未授權用戶不能提取水印信息，也難以擦除其中的水印信息，因為嵌入的位置是未知的。After the cu - al mixed powder was milled 96h, the lattice constant of cu ( 111 ) plane became 0. 3653nm, and the diffraction peaks of aluminum have disappeared completely, which showed that aluminum atoms have dissolved in crystal lattice of copper
當cu - al混合粉末球磨時間大於96h時， cu的（ 111 ）面的點陣常數變為0 . 3653nm ， al的衍射峰已完全消失。通過分析可知，經過96h的球磨， al原子已經完全吲溶於cu的晶格中。Pure cdte films have high electrical resistivity and are slightly p - type, due to the formation of cd vacancies in the cdte lattice acting as acceptor centers. the sheet resistivity of films are about 1010 ? / ?. the sheet hole concentration is 105 - 6 / cm2 and the hall mobility is about hundreds cm2 / v. s. the structural and electrical properties of cdte films doped te are markedly different from pure cdte films
，面載流子濃度約105 - 6 / cm2 ，載流子遷移率為幾百cm2 / v . s ；摻雜te元素后，薄膜衍射峰強增大，薄膜結構上出現了第二種相成分?六方結構的te ，由衍射峰強判斷該相比例較小，同時cdte薄膜的衍射峰向低角度偏移，晶格< wp = 5 >常數增大。The investigation of structure by x - ray diffraction shows that crystal parameters changes clearly when percenting ca and la into pbtio _ 3, it was caused by the ca ion and la ion replaced the pb ion of a position in perovskite compound, that bring lattice mismatch and asymmetrical replace
在pbtio _ 3中摻入la和ca可以有效改變薄膜的晶格常數，這是因為在abo _ 3型化合物中，鈣離子、鑭離子取代了a位的鉛離子，造成晶格失配和不對稱取代。The main results are as follows : 1. dynamical behavior in coupled map lattices with regular topology are investigated by using lyapunov componet. 2. dynamical behavior in coupled map lattice with scale - free topology are investigated in detail. our strategy is to apply three feedback control methods, including constant feedback and two types of time - delayed feedback, to a small fraction of network nodes to reach desired synchronous state
本論文正是對具有無標度拓撲結構的耦合映象格子的動力學行為進行了研究，主要內容和創新點如下: 1 .利用lyapunov指數對具有規則網路結構的耦合映象格子系統的動力學行為進行研究; 2 .對具有無標度網路結構的耦合映象格子系統的動力學行為進行了詳細研究;為了使系統達到同步，我們的策略是應用三種反饋方法（常數反饋和兩種時延反饋）對系統的部分節點進行控制以達到我們期望的狀態。Currency format is usually composed of a locale, currency name, currency subunits, currency symbol, positive format, negative format, currency codes, and currency separators
貨幣格式通常由地區、貨幣名稱、貨幣子單位、貨幣標記、正數格式、負數格式、貨幣代碼和貨幣分隔符構成。Due to the change in lattice constant and the distortion of energy band, strained si exhibits great mobility enhancement compared with the conventional si material, and it is the critical reason for the wide application of strained si mosfets
由於晶格常數的改變，應變硅中載流子的遷移率高於普通硅材料，這是應變硅mosfet性能提高的根本原因。And the incompressible navier - stokes equations are exactly derived from this incompressible lbgk model, thus the compressible effect due to the density fluctuation is theoretically eliminated
其中密度保持為常數，使得從格子bgk方程能夠導出宏觀不可壓ns方程，理論上消除了因密度變化導致的壓縮誤差。However the study of metal - oxide hetero - interface is relatively less because the properties of metals and oxides usually differ extremely from each other. contrary to metals, the oxides are usually very brittle, elastically stiffer, insulating and exhibit less thermal expansion and their crystal lattice constants are different from metals. moreover, the preparation of specimen of metal - oxide interface is very difficult, the observation of searching a suitable interface under the electron microscope is also a tedious work
然而，對金屬-氧化物界面結構的研究卻相對少一些，這主要是由於金屬與氧化物之間的性質相差非常大，與金屬相反，氧化物通常很脆、絕熱、熱膨脹系數小，晶格常數也不同於金屬，有的甚至相差很大，而且，制備金屬-氧化物界面比較困難，在電子顯微鏡下全面地觀察一個合適的界面也是一項令人乏味的工作。分享友人