收邊帶 的英文怎麼說
中文拼音 [shōubiāndài]
收邊帶
英文
pocket band-
Oryx number two was taken away from the lioness after its condition deteriorated from lack of food. oryx number one was not so lucky. the lioness managed to protect it for two weeks before a hungry male lion with a traditional diet seized the baby while the lioness was napping
動物看管員們說這只剛剛被"獅媽媽"收養的小獅子看上去身體狀況不錯，很健壯，但是由於跟在獅媽媽身邊缺少食物，第二隻被收養的小羚羊已經被看管員從母獅子身邊帶走。The absorption edges wavelengths and cutoff wavelengths of ceo2 - ti2 ;. complex films are red shift, if compared with pure ce02 films or pure tio2 films
混合薄膜的吸收邊波長和截止波長大於純ceo _ 2 、 tio _ 2薄膜，並出現明顯的帶尾現象。Technical requirements for transmitter and receiver for globle marine distress safty system
船用單邊帶收發信機技術要求Technical requirements for transmitter and receiver in globle marine distress safty system
全球海上遇險和安全系統gmdss船用單邊帶收發信機技術要求A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )
設計了一種基底鉆周期圓孔結構的電磁（光子）晶體貼片天線，用fdtd方法並結合pml吸收邊界條件對該天線進行了研究，結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善，與普通天線相比，基底中的表面波受到很大抑制，天線的帶寬增加，遠場方向圖上天線的旁瓣和背瓣被明顯削弱，向前輻射的增益由原來的12db增加到26db ，增加了14db ，比文獻上報道的gonzalo等人的研究結果提高了4db 。The radiation pattern of the antenna is more rotationally symmetric, and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface. in conclusion, in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic - bandgap structures. it is shown that our photonic bandgap structures can greatly improve the performance of the patch antennas
該平面圓環結構軟表面天線是在空氣介質的皺褶圓環結構軟表面天線的基礎上改進得到，為了便於比較，我們首先研究了空氣介質的皺褶圓環結構軟表面天線，用fdtd方法並結合pml吸收邊界條件對該天線的性能進行了研究，結果表明天線的帶寬增加，天線的軸對稱性得到了很大改善， e面和h面方向圖的波束幾乎重合，天線的旁瓣和背瓣受到很大的抑制。This technique combines the edge - based finite - element method with physical optics ( po ) and physical theory of diffraction ( ptd ). the hybrid technique is applied to compute the scattering fields from the electrically large bodies with cracks and cavities on their surfaces. it is also used to analyze the scattering characteristics of microstrip antennas residing in a cavity mounted on metal objects with finite sizes
本文採用edge - basedfem為基本方法，結合物理光學法（ po ） 、物理繞射理論（ ptd ） 、邊界積分方程（ bi ） 、區域分解技術（ ddm ）和完全匹配層（ pml ）吸收邊界條件等求解方法構成的混合方法，對電磁散射和輻射問題進行了研究，主要包括以下內容：提出了一種edge - basedfem與物理光學方法和物理繞射理論相結合的混合方法? fem po - ptd方法，並將該混合方法應用於帶有腔體或槽縫的電大尺寸導體目標的電磁散射特性分析和位於有限導體目標上的背腔式微帶貼片天線的電磁散射特性分析。The bandgap energy of ar gas c60 thin film is 2. 24 ev, and the bandgap energy of n2 gas film is 2. 09 ev. both are larger than that of vacuum c60 thin films ( 2. 02 ev )
用直接躍遷吸收邊關系得出在氬氣和氮氣中制備的c60薄膜的禁帶寬度分別為2 . 24ev和2 . 09ev ，均比在真空下生長的c60薄膜禁帶寬度（ 2 . 02ev ）要大。The radiation problems of microstrip antennas residing in a cavity are analyzed by the edge - based fem with perfectly matched layer ( pml ) absorbing boundary condition ( abc )
將edge七asedfem與完全匹配層吸收邊界條件相結合，分析了背腔式微帶天線和背腔式分形微帶天線的電磁輻射特性。In order to validate the feasibility of the novel algorithm, ultrawide band pulse wave is used as incident wave. computational domains are limited by absorbing boundary condition. the transformation technique from near zone to far zone is used when the sampling spot is outside of the computational domains
時域成像技術以超寬帶脈沖源作為入射波源，用吸收邊界條件來界定計算域，而當采樣點遠離計算區域時，需要通過近?遠場的轉換技術把近場等效面上的信息轉換到遠場，本文採用簡單而實用的柱面波外推法作為近?遠場的轉換方法，收到了較好的效果。Simultaneously, the einstein shift of spectra could be seen and the intensity of fluorescence at 350nm was reinforced with the increment of manganese oxide nanoclusters in the pores. 4. the preparation of manganese oxide mesophase via hydrothermal treatment was studied here simply
此外對不同孔徑mcm - 41進行納米團簇裝載試驗表明：隨著孔道中氧化錳裝載量的增加，吸收光譜吸收邊帶發生紅移， 350nm激發熒光強度增強。39 % of total conversion efficiency at pump level of 600mw 858nm is obtained experimentaily with our single - resonant, external ring frequency - doubler pumped by tr. sapphite laser at room temperature ( about 21. 50c ). the conversion efficiency is seriously limited by what is called " blura " ( blue light induced infrared absorption ) and thermal effects. yet, up to 137 mw of cw blue light at 429nm at pump level of 565 mw has been achieved and stabilized over a hour when the cavity is locked via pound - drever - hall ( pdh ) technique
泵浦功率為600mw時，由於兩種效應「藍光導致紅外吸收（ bliira ） 」和「熱效應（ thermaleffects ） 」的嚴重影響，室溫下（約21 . 5 ）獲得了39的倍頻轉換效率；採用邊帶鎖頻技術， 565mw的泵浦光獲得137mw的藍光輸出，在沒有外界強烈的干擾下可以鎖定1小時以上而不失鎖。If continue to develop, the limit cost that the enterprise pays to win place of accrual of a limit will be more than limit accrual, bring negative profit
假如繼續發展下去，企業為獲得一個邊際收益所付出的邊際成本就將大於邊際收益，帶來負利潤。It was found from the experiment that, with the increasing of substrate temperature, there were more oxygen vacancies in the films, which lead the conductance of the sample become larger, and the absorb edge of zno thin films shifted toward higher wavelength ; with increasing of ar : o2 ratio, there were lesser oxygen vacancies in the films, which lead the absorb edge of zno thin films shifted toward lower wavelength
實驗還發現，隨著襯底溫度的升高，薄膜中產生的氧空位將會增多，使得zno薄膜的電導逐漸增大，而且其紫外透射吸收截止邊帶向高波長方向漂移；隨著氬氧比例的增加，薄膜中的氧缺陷相對減少，薄膜的透射吸收截止邊向低波長方向漂移。It was found from the experiment that, with the increasing of substrate temperature, there were more oxygen vacancies in the films, which lead the conductance of the sample become larger, and the absorb edge of ito thin films shifted toward lower wavelength ; with increasing of ar : o2 ratio, there were lesser oxygen vacancies in the films, which lead the absorb edge of ito thin films shifted toward lower wavelength
實驗還發現，在一定的溫度范圍內隨著襯底溫度的升高，薄膜中產生的氧空位將會增多，使得ito薄膜的電導逐漸增大，而且其紫外透射吸收截止邊帶向短波長方向漂移；隨著氬氧比例的增加，薄膜中的氧缺陷相對減少，薄膜的透射吸收截止邊向低波長方向漂移。General specification for short wave single - sideband receivers of a class
一級短波單邊帶接收機通用規范Methods of measurement of electrical performance for short wave single - sideband receivers
短波單邊帶接收機電性能測量方法Ternary compound bnxpi - x films of quality are deposited and the ultraviolet absorbance characteristics of bnxp, - x films were investigated in the thesis, too. with the quantity of phosphorus dopant, the optical bandgap modulation of bnxpi is achieved successfully. in addition, the combined intensity of bnxp, - x films and substrates was enhanced by depositing the buffer layer
實驗採用磷對氮化硼進行摻雜，成功地在光學石英玻璃襯底上沉積了磷摻雜氮化硼（ bn _ xp _ （ 1 - x ） ）薄膜，研究了該薄膜的紫外光敏特性，其吸收邊在240nm 400nm的紫外波段內可以連續變化，同時也實現了對氮化硼光學帶隙在3 . 8ev 5 . 3ev范圍內的連續可控調制。Considering the charactristics of the radio communication through stratum ; using single antenna with short circuit terminal, single side - band modulation and receiving technique of weak signals ; a proposal of mine radio communication through stratum is presented
針對穿透地層無線通信的特點，採用終端短路單級天線及單邊帶調制和弱信號接收技術，提出一種可行的穿透地層礦井無線電通信系統的方案。The results show that the differences between the two composites are very large. although the micrograph of the ni nano - wire and the co nano - wire are nearly the same, as the metal composition increased, the absorption band - edge of the ni / aao composite is small red - shifted ( 13 run ), however, the absorption band - edge of the co / aao composite is strongly red - shifted ( 80 nm ). meanwhile, the ni / aao and co / aao composite exhibit the optical features of the semiconductor with indirect and direct band gap respectively
或no組份比的增加， ni / aao吸收邊的紅移量僅約13nln ，而co / aao的吸收邊紅移量卻超過了80lun ，分析發現ni / aao復合體系具有間接帶隙半導體的光學特徵，而co從ao復合結構則具有直接帶隙半導體的光學特徵; 5 .實驗研究了a創aao納米有序陣列復合結構的光吸收特性，在其光吸收譜上出現了較強的ag表面等離子體振蕩吸收峰，隨ag沉積量的減少，吸收峰位發生紅移，且逐漸展寬分享友人