transition band 中文意思是什麼

transition band 解釋
過渡帶
  • transition : n 轉變，演變，變遷，變化；飛越；過渡期；【音樂】變調，轉調；【修辭學】語次轉變；【語法】轉換；【...
  • band : n 1 帶，繩；帶形物；箍；箍條；嵌條；鑲邊；鋸條； 〈pl 〉 （法官等的）寬領帶。2 束縛，羈絆；義務；...
  1. We infered that this new absorption band was associated with the effect of charge - transfer transition between adsorbates and colloidal silver particles, not the effect of the surface plasma resonance due to the silver particles aggregation which was usually attributed to in previous research work

    我們將其歸因於與納米銀顆粒表面間的電荷轉移效應（ ct ） ，而非通常所認為的因銀膠凝聚而產生的表面等離子體共振吸收效應。
  2. Lastly, we discuss the energy - band structure of ultracold atoms in optical lattice by means of green function method and in addition, procure the superfluid - mott phase transition condition in mean - field approximation which is in agreement with the result in the literature

    最後利用格林函數方法討論了光格子中超冷原子的能帶結構，根據mott相存在能隙的判據我們在平均場近似下重新得到superfluid - mott相變條件，該結論與相關文獻一致。
  3. The temperature dependences on the resistance in all the thin films show that in the low temperature range the width of eg band level changes the transports, but in the high temperature range the thin films forms the small polarons hopping conductivity. the phase transition induced by the current is explained by the demagnetization and lattice distortion

    在高溫部分，材料呈現小極化子跳躍形式輸運特徵；實驗研究了不同偏置電流對薄膜的相變影響，表明電場可以引起材料中磁性的變化和晶格畸變，導致相變溫度點向低溫方向移動；材料的光致相變研究表明光子能量、光強和極化方向對輸運性質有影響。
  4. In passive section, above all, i introduce theory about microstrip line. millimeter - wave band - pass filter and wave guide - to - microstrip transition. designing two type of coverer by image - reject mixer and hmc329

    無源電路部分，我們首先對傳輸線的種類，耦合微帶線的傳輸特性和微帶波導過渡的基本原理進行了分析。
  5. This work was supported by the state science and technology ministry of p. r. china under the contact no. g20000683 - 06, and by the national natural science foundation of p. r. china under grant no. 60046001. gallium nitride is one of the 3rd generation semiconductor materials. from 1990 ' s, gan has attracted more and more attention and advanced rapidly, mainly due to its direct transition, wide band gap ( ~ 3. 4ev ) and other excellent characters

    Gan是直接躍遷的寬帶隙材料，具有禁帶寬度大（ 3 . 4ev ，遠大於si的1 . 12ev ，也大於sic的3 . 0ev ） ，電子漂移飽和速度高，介電常數小，導熱性能好等特點，在光電子器件和電子器件領域有著廣泛的應用前景。
  6. In the paper, the transition of ka band rectangular waveguide to micro strip probe and the back - to - back structure are designed. the measurement results indicated the low insert loss and low return loss from 35 ghz to 40 ghz

    本文設計了ka波段矩形波導到微帶探針過渡結構以及背對背結構，測試結果表明，在35 40ghz頻率范圍內，其插入損耗和回波損耗都比較小。
  7. Based on the results of the theory analysis and computer simulation of suspended stripline low pass filter, band pass filter, the transition from waveguide to finline and the transition from waveguide to suspended stripline, the structure design and manufacture were made. the measured results match the requirement. different from the traditional mixers used in the domestic communications satellites, the sub - harmonic balance mixer type was used in the ka - band mixer design

    在ka頻段混頻器的研究過程中，通過對衛星和飛船所用到的混頻器進行研究，在對ka波段的傳統射頻前端電路的分析基礎上，提出改變以往星上傳統的基波混頻方案，採取了次諧波混頻方案，降低了本振頻率，簡化了本振鏈路，使噪聲特性、可靠性獲得改善。
  8. The arithmetic searches for the least central offset through partition speech sub - band and confirms pitch period of the transition sound

    該演算法主要通過劃分語音子帶來搜索最小中心偏移量，較準確地確定過渡音的基音周期。
  9. This method can not only minimize the stopband energy of the prototype filter, but also determines the inter symbol interference power and the transition band energy, which can be used to design prototype filters for both the critically sampled fmt system and the non - critically sampled fmt system

    該方法不僅可以最小化原型濾波器的阻帶能量，還界定了符號干擾功率、過渡帶能量，適用於嚴格采樣和非嚴格采樣濾波多音調制系統。
  10. Basing on the research of the geometric continuous condoition of two patches, this paper gives a method for merging two bezier surfaces with the construction of transition band which improves the result of liu ding - yuan and hu kang - sheng

    摘要在研究兩曲面片間幾何連續條件基礎上，給出了運用構造過渡曲面片來光滑地連接兩相鄰曲面片的一種方法，所得結果是對劉鼎元，胡康生等研究成果的改進，並給出了本演算法的試驗結果。
  11. Cdse, a ii - vi compound with direct transition, wide - band - gap and high atomic number ( 48, 34 ), is regarded as a new effective materials for room temperature nuclear radiation detectors and photoconductive devices, and can be used in many fields

    Prince提出的優良室溫核輻射探測器材料必須具備的要求，因而被認為是制備室溫核輻射探測器的最有前途的新材料之一，可廣泛應用於探礦、無損檢測、核醫學、環境監測、軍事和空間宇航技術等領域。
  12. The net charge of transition metal atom has decreased as a result of the static effect of lithium ion and effect of energy band of co and ni

    由於鋰離子的靜電作用和鈷、鎳自身能帶結構的影響，過渡金屬的凈電荷減小。
  13. Design of a high output power, high combining efficiency power combiner at ka - band based on a slotted - waveguide was presented in this thesis. slotted - waveguide power divider, which achieves power - dividing and waveguide - microstrip transition at the same time takes the advantages of low profile, low cost and high combining efficiency

    用開槽波導同時完成功率分配/合成及波導-微帶過渡，具有體積小、合成效率高的特點，既不屬于空間功率合成又與傳統的電路合成有所區別。
  14. The analysis results show that the mother band and solidified layer are bonded through the transition layer formed by element diffusion

    經分析得知母帶與凝固層的界面結合是靠元素相互擴散形成過渡區實現的。
  15. At the same time, we have manufactured a transition from microstrip line to rectangle waveguide, working in full ka - band. the insert loss of a single transition is between 0. 25db and 1db

    同時，完成了ka全頻段微帶波導過渡的研製，在26 . 5 39 . 5ghz頻率范圍內，單個微帶波導過渡的插損在0 . 25 1db
  16. According to the dipole transition selection rule, it allows the system to transit from the ground state to the first and second sub - band respectively, the shape of the photoionization cross - section varying with the photon energy in the two cases is quite different

    根據偶極躍遷的選擇定則，將使得體系從基態分別躍遷到電子的第一子帶和第二子帶，二者的光電離截面隨光子能量的變化截然不同。
  17. We also have analyzed the photoluminescence ( pl ) spectra of some zno films, it turns out that the emission of ultraviolet light comes from the radiative recombination of excitons within nano - crystal energy band - gap, and the pl peaks move to smaller wavelength because zn are substituted by fe, co, and cu, which cause the size of the film grains smaller and the effective band - gap bigger. the red emission of zno films is due to, on the one hand, decrease of the film grains size which causes the emission intensity smaller and smaller until it disappears abruptly, on the other hand, the transition of electrons from deep donor level of the oxygen vacancies to the valence band

    另外，我們還對薄膜光致發光性質進行了分析和研究，結果表明：納米結構zno薄膜的紫外發光來源於帶間激子的輻射復合發光， pl譜的帶邊發射峰發生藍移是由於fe 、 co 、 cu對zn的替代使薄膜粒子的尺寸減小，使薄膜的有效帶隙增寬； zno薄膜的紅色發光，一方面是zno顆粒尺寸的減少，帶間的激子發射峰越來越弱直至猝滅，另一方面主要是與zno晶格中的o空位有關，由深能級復合發光引起紅光發射。
  18. For the receiver which uses the intermediate frequency real signal output manner, a good frequency plan should guarantee the transition band of the “ spectrum blocks ” which produced by the sampling as wide as possible, so as to ease the burden of the base - band signal processing to the minimum level. it has not been particularly analyzed in the former references about receiver design, and the main

    在以往有關接收機設計的文獻中很少對此進行過詳細的分析，其主要原因是大多數接收機系統的信號帶寬較窄（通常在2 、 3mhz以下） ， fif和fs受到的限制較少，可以很輕易的保證采樣之後各「譜塊」有足夠的過渡帶寬。
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