forbidden band 中文意思是什麼

forbidden band 解釋
禁帶（原子）
  • forbidden : adj. 被禁止的。
  • 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. Two kinds of filters are presented : by transferring the conventional waveguide cavity filter to the siw, a narrow bandstop filter is designed and simulated, get characteristic of narrow - band bandstop filtering. for example, relative bandwidth 1. 2 %, most attenuation of 48db in band. electromagnetic bandgap ( ebg ) structures present “ forbidden band ” characteristics, siw features high - pass characteristics, so bandpass filters can be composed by combing ebg and siw

    本論文提出了兩種基片集成波導濾波器結構:將傳統的腔體濾波器概念運用於基片集成波導結構，設計出了一種窄帶帶阻濾波器，對其進行模擬，得到了窄帶帶阻濾波特性，如相對帶寬為1 . 2 % ，最大衰減為48db 。
  2. Modulation on widening photonic forbidden band of one - dimensional photonic crystal by optical thickness

    光學厚度對一維光子晶體禁帶寬度的調制
  3. For n - doped tio _ ( 2 ), the forbidden band was divided into two ' s, and the cut - off wavelength and the application of solar energy was increased too

    對于n摻雜tio _ 2薄膜來說，禁帶寬度裂分為兩個「表觀」禁帶寬度，大大提高了截止波長，提高了對光源的利用率。
  4. In the reflected wave, the reflectivity of forbidden band lowers quickly with the extinction coefficient increment, when the extinction coefficient increases to 0. 05, there is already no obvious photonic bandgap

    得出：在反射波中，禁帶的反射率隨消光系數的增加而迅速降低，當消光系數增加到0 . 05時，已經不存在明顯的能帶。
  5. Although nearly a few months come, the bounds of lift a ban makes work current an amount and market prise are in growth, but the market was not experienced immediately apparently be restricted to make work current a pressure that sees forbidden band come in succession

    盡管近幾個月來解禁的限售流通股數量和市值在增長，但市場顯然並未馬上感受到限售流通股陸續解禁帶來的壓力。
  6. The result shows that the pbg structure has obvious character of forbidden band at the suitable size, and can be designed to good performance microwave filter. the pbg structure have the character of high resistance, that can reinforce the forward radiation, and reduce the backward radiation, increase the directivity, improve the gain and ameliorate the performance of the antenna. in addition, the pbg structure can also greatly increase the isolation and significantly decrease the coupling between the antenna elements

    研究結果表面，取合適的尺寸時， pbg結構具有明顯的禁帶特性，可以設計成性能良好的微波濾波器； pbg結構具有高阻特性，把這種特性用於微波天線時， pbg結構可以加強前向輻射，減小後向輻射，增大天線的方向性系數，從而提高天線的增益，改善天線的性能，另外， pbg結構還可以大大提高天線單元之間的隔離度，顯著減小天線單元間的耦合。
  7. With the development of science and technology, more and more oxide crystals are synthesized by more and more advanced technique, the new oxide crystals are incessantly synthesized and the new characters of oxide crystals are incessantly founded. corundum dopped with impurity not only is cherished because of it ' s beautiful appearance, but also is used in the fields such as electrotechnics, mechanism, laser, the optic apparatus and the underlay of semiconductor. sapphire dopped with ti3 + is the best material of the tunable solid laser. zno crystal is material of the direct gap semiconductor ( the width of forbidden band : 3. 37ev ). the excited emission in zno crystal at room temperature has been found, so the ultraviolet luminescence in zno semiconductor can be acquired at room temperature

    含有少量雜質的剛玉晶體（ - al _ 2o _ 3 ）不僅由於其色澤艷麗成為人們珍愛的名貴寶石，而且由於它具有的優異性能，被廣泛應用於電工、機械、激光器，光學器件和半導體襯底材料。鈦藍寶石是目前最優異的固體寬帶調諧激光材料，用於製作飛秒脈沖可調諧激光器。氧化鋅晶體是直接帶隙寬禁帶半導體材料（禁帶寬度3 . 37ev ） ，現已發現具有室溫下受激發射特性，有可能實現室溫下半導體紫外發光。
  8. Such control can be realized in case where a atom interact with photonic band gap matericals when the atom is placed in photonic crystals whose density of modes is dramatically different from that of free space vacuum. it was known that control could be achieved by varying the frequency ( which leads to the changes of the relative position of the upper levels from the forbidden gap ) or by varying the photonic density of modes ( dos ) or by varying the intial atomic state

    由於光子晶體具有不同於真空中的光子態密度，原子和光子帶隙材料便發生相互作用，這樣便可以控制原子的自發輻射。改變原子上能級與光子禁帶邊緣的相對位置、材料中的光子態密度或原子初態都可以控制原子的自發輻射。
  9. While being catapulted into the sky at the end of a giant rubber band is now allowed, jaywalking at bus stations is forbidden

    把人拴在巨大的橡皮帶的一端，一下子射到天上的蹦極運動雖然已經得到批準，但是市民在公共汽車站嚴禁違反交通規則。
  10. C60, a new type of semiconductor material, has many superior properties, such as wide forbidden band, direct band gap, rapid responding time, high optical damage threshold value and wide responding frequency band etc. these capabilities indicate that c60 film will be used widely in computer, integrate optical instrument and storage device etc. however, the preparation and the purification of c60 material affect the large - scale application at all times

    C _ （ 60 ）薄膜作為新的半導體材料具備許多優越特性，如禁帶寬度大、直接帶隙、快速響應時間、高的光學損傷閥值、較寬的響應頻帶等，這些性能預示了c _ （ 60 ）薄膜在計算機、集成光學器件、光存儲器等方面具有廣闊的應用前景，但c _ （ 60 ）材料的制備與提純還一直是阻礙該新材料投入大規模實際應用的主要因素。
  11. With acoustic propagation being mostly forbidden, the findings of the sonic band gaps can potentially be used to design sound insulation systems

    當聲波之波傳被阻絕于聲子晶體之外時，這樣的聲子晶體設計將可用來當作聲音的頻障設計。
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