精細結構常數 的英文怎麼說

中文拼音 [jīngjiēgòuchángshǔ]
精細結構常數 英文
fine structure constant
  • : Ⅰ形容詞1 (經過提煉或挑選的) refined; picked; choice 2 (完美;最好) perfect; excellent 3 (細)...
  • : 形容詞1 (條狀物橫剖面小) thin; slender 2 (顆粒小) in small particles; fine 3 (音量小) thin ...
  • : 結動詞(長出果實或種子) bear (fruit); form (seed)
  • : Ⅰ動詞1 (構造; 組合) construct; form; compose 2 (結成) fabricate; make up 3 (建造; 架屋) bui...
  • : 數副詞(屢次) frequently; repeatedly
  • 精細 : meticulous; fine; careful
  • 結構 : 1 (各組成部分的搭配形式) structure; composition; construction; formation; constitution; fabric;...
  1. The fine - structure constant is an important zero dimension constant in the atomic physics. this article introduces the origin of fine - structure constant, and discusses its physical significance, and theoretical calculation

    摘要本文介紹原子物理學中重要的無量綱之一的精細結構常數的由來,討論它的物理意義和理論計算。
  2. Neural networks are used more frequently in lossy data coding than in general lossless data coding, because standard neural networks must be trained off - line and they are too slow to be practical. in this thesis, statistical language model based on maximum entropy and neural networks are discussed particularly. then, an arithmetic coding algorithm based on maximum entropy and neural networks are proposed in this thesis

    傳統的人工神經網路據編碼演算法需要離線訓練且編碼速度慢,因此通多用於專用有損編碼領域如聲音、圖像編碼等,在無損據編碼領域應用較少,針對這種現狀,本文詳地研究了最大熵統計語言模型和神經網路演算法各自的特點,在此基礎上提出了一種基於神經網路和最大熵原理的算術編碼方法,這是一種自適應的可在線學習的演算法,並具有簡的網路
  3. For the first time, the special integrated applications of multi - disciplines and new technologies are used to study the structure fracture of jurassic sandstone of baigezhuang region in the dissertation. on the basis of abundant fine descriptions of core, the imaging and dip data, the identification informations of fracture with conventional logs, the parameters of seismic attribute, the detected data of fracture with correlative analyses of 3d and the prediction data of the finite element numerical simulation of fracture are inter - testified to qualitatively and quantitatively determine the structure fracture of this area

    本文首次在柏各莊地區採用具有特色的多學科新技術綜合應用分析的方法,在大量巖芯裂縫描述基礎上,合成像測井和地層傾角測井新技術,以及利用規測井技術提供的裂縫識別資料,地震屬性參、三維據相干分析檢測裂縫的資料和有限元值模擬裂縫預測的資料,相互佐證,對柏各莊地區侏羅系砂巖造裂縫進行了定性、定量研究。
  4. After contrasting and analyzing the two common used measure method of discontinuity, a modified method that is elaborate method of joint surveying is put forward for the first time. rational method to get spacing of joints is researched utilizing lots of statistical results. according to the theory of minimal valid length of scanline, 5m is chose as appropriate statistical section length to obtain the successive values of those indices indicating rock mass structure, they are spacing, number and total length of joint

    本文在對比分析目前兩種用的面測量方法優缺點基礎上,首次提出了一種改進的面測量方法?節理詳測法,並利用大量的統計果,研究合理的間距取值方法,根據間距無偏差測量的最小有效測線長度理論,選擇5m作為統計區間長度,獲得了節理間距、條、總長度隨洞深的連續變化值。
  5. These energy levels are determined by how tightly the atomic nucleus holds the electrons, which depends on the strength of the electromagnetic force between them ? and therefore on the fine - structure constant

    能階是由原子核拉住電子的松緊程度所決定,而這又取決于能階之間的電磁力強度,因此便和精細結構常數關系密切。
  6. Generally, the protein - protein docking procedure is composed of four stages : searching of the binding modes of the receptor and the ligand, filtering of docked modes to eliminate the irrational docked structures, optimizing the structures, evaluating the docked modes with the refined scoring function and ranking them to obtain the near - native structures

    ,蛋白質蛋白質分子對接包括四個階段:搜索受體與配體分子間的合模式,過濾對接以排除不合理的合模式,優化,用的打分函評價、排序對接模式並挑選近天然象。
  7. These findings complement recent contentious observations that the fine - structure constant, which describes the overall strength of the electromagnetic force, has increased slightly

    這項發現為近來一項引人爭議的觀察做了補充:用來描述電磁力總體強度的精細結構常數,已經些微增加了。詳情請見4月21日的《物理評論通訊》 。
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