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- The influence of atomic internal state population on its translational motion in a quantized standing wave cavity field with spatial periodic structure is investigated. 基于原子作雙光子共振躍遷的原子場(chǎng)綴飾態(tài),討論了駐波腔場(chǎng)中兩能級原子的量子化平移運動(dòng)與原子內態(tài)布居間的相互影響。
- This paper shows that there exists structure of inco-mmensurable temporal and spatial periods in open flow Lattice. 指出了在開(kāi)流格點(diǎn)中，存在著(zhù)時(shí)間空間不可約周期結構。
- The positive equilibrium is unstable and the system bifurcates a spatial periodic solution of small amplitude if the dispersal rate is located in an interval. 當擴散率增大且位于某一開(kāi)區間內變化時(shí), 該系統的正平衡點(diǎn)是不穩定的, 而且分出唯一的小振幅空間周期解;
- The complex resonant frequency and radar cross abation(RCS)are formulated by spectral domainapproach of periodic structure. 運用無(wú)限周期結構的諸城法建立起微帶陣列天線(xiàn)的復諧振頻率和雷達散射截面公式。
- The charge, orbital, or spin ordering of valence electrons in advanced materials can be incommensurate with the periodic structure of lattice. 摘要在前瞻性材料中，價(jià)電子的分布可呈現與原子結構不一致的周期性，形成電荷、軌域或自旋有序排列。
- Photonic crystal is a new type periodic structure with frequency bandgaps, their unique bandgap features bring about wide application prospect. 摘要光子晶體是一種具有具有頻率禁帶的新型周期結構，它獨特的頻率帶隙特性使得光子晶體具有廣泛的應用前景。
- The optical characteristics such as transmission and polarization of this periodic structure in different incident tangos and refractivity conditions were analysed. 利用光學(xué)傳輸矩陣法研究了這種結構的光子晶體,分析了在不同入射角和折射率條件下,該周期結構的透射和偏振的光學(xué)特性。
- In order to calculate the equivalent step index of the periodic structure of the cladding holey optical fiber, all-vectorial fundamental space filling mode approach was utilized. 為了計算周期結構包層多孔光纖的等效階躍折射率，采用了全矢量基本空間充填模式法。
- spatial periodic inversion saturation 空間周期性反轉飽和
- spatial periodic synchronization 空間周期同步
- In a word, the paper has presented theory base and circuit design examples to novel Radar systems and MIC with high performance, small size, low power loss, and novel periodic structure (EBG and DGS). 總之,本文為研究和設計面向下一代雷達系統、具有高性能、小尺寸、低功耗、基于新穎周期結構(EBG結構和DGS結構)的微波集成電路,提供理論基礎和電路設計范例。
- Theoretical analysis showed that under well specified conditions, electromagnetic slow wave can interact stationary with moving periodic structure,based on that the a working principle can be proposed for a class of MEMS motor and actuator. 理論分析表明,在特定的條件下,電磁慢波與運動(dòng)周期結構之間可以發(fā)生穩定的相互作用,這能夠成為一大類(lèi)MEMS電機或執行器的一種不同的工作原理。
- Secondly, the dispersion equation of longitudinal wave is derived based on the transmission model that longitudinal waves propagate along the periodic structure such as the drill strings or oil pipe. 其次，建立了理想鉆桿和油管這種宏觀(guān)周期性結構中沿管軸方向傳播的縱波傳播模型，推導出了縱波的頻率方程(色散方程)。
- The capability of periodical structure attenuating incident wave has been proved by simulation results. 3. 3、 在電磁波有源吸收研究方面，提出了結構性吸收的概念。
- Frequency selective surface (FSS) is a two-dimensional periodical structure and used mostly in the filter. 頻率選擇表面(FSS)是一種具有二維周期性結構的濾波結構,主要在濾波器上使用。
- Frequency-selective surface (FSS) is a two-dimensional periodic structure consisting of a dielectric substrate and the metal units (or apertures) arranged periodically on it. 頻率選擇表面(FSS)是二維周期結構，由周期性排列的金屬單元(或孔徑單元)和介質(zhì)襯底構成。
- With appropriate top and bottom periodic hole structures arrangement, the emission peaks from SPs resonance in the bottom periodic structure are observed simultaneously. 在適當的上、下周期性結構設計之下，可觀(guān)察到由下層周期結構所造成的表面電漿共振產(chǎn)生的發(fā)射頻譜。
- That period was a bright page in the history of Chinese literature. 那個(gè)時(shí)期是中國文學(xué)史上光輝的一頁(yè)。
- Let us hope that the period of this injustice will be over soon. 讓我們希望這個(gè)不公正的時(shí)期很快結束吧。
- Childhood is a period of rapid growth. 幼年是生長(cháng)迅速的時(shí)期。
