n band 中文意思是什麼

n band 解釋
n波段
  • n : 1. 【羅馬數字】90〈N＝90000〉。2. 【化學】＝nitrogen. 3. ＝North（ern）。N ＝nuclear 核的：N-waste 核廢料。
  • 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. And how about j for cleaning brush, n for nail clippers and o for rubber band

    又或者鮑魚刷代表j ，指甲鉗代表n ，橡筋箍代表o呢？
  2. They should wear eyeshade, drag a rope with a rubber band on it and then pick up the nuclear matter with it, but can ' t touch the n - pollution area and must make sure the water not overflow

    每個小組指派4個成員作為特種部隊成員，他們需戴上眼罩，然後特種部隊成員每人牽著一根繩子（中間套上一個橡皮筋） ，去把核物質取出，但是不能接觸禁區，杯子中的水也不能溢出。
  3. Due to the hardware characteristic ' s limitation, such as the poor speed of a / d, d / a conversion and dsp process, the most part of sr system adopt middle course. that is to say, by using the special digital converter or running relevant arithmetic, it converts the radio signal to intermediate frequency signal and completes the base - band signal process that is n ' t the veriest sr and is named " software defined radio ( sdr ) "

    由於受到硬體性能如a d 、 d a及dsp晶元處理速度的限制，目前的軟體無線電系統多採用折中的實現方案，增加專用的數字變頻器或者運行數字變頻演算法，將射頻信號變頻到中頻，然後再進行基帶信號處理，這樣的軟體無線電系統又被稱之為「軟體定義無線電」 ，它並不是真正意義上的軟體無線電。
  4. Secondly, analysis of peroxidase isoenzyme with polyacrylamidedel electrophoresis for was performed in order to investigate the changes of gene expression under sound stimulation. it could be seen from electrophoresis gel that each group had 6 enzyme bands. new enzyme band in pod electrophoretogram was n ' t detected for stressed groups

    此外，在部分實驗組的培養基中加入不同濃度的蛋白質合成抑制劑環己亞胺酮（ chm ）后發現， pod和cat的活性有所降低，暗示著聲波處理使保護酶活性升高的原因可能是聲波處理促進了細胞內酶的合成。
  5. 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。
  6. The hwtx - i gene was chemically synthesized according to its known cdna sequence, the gene was inserted into vector ppic9k which contained aoxj promotor and the sequence of a secreting signal peptide - a - factor, the cloning ppic9k / hwtx - i was constructed and confirmed by two - step pcr and dna sequence analysis, then it was transformed into host strain gs115, a his + muts cell line was screened and multicopy transformants were screened by various g418 concentrations, the multicopy transformant was named gh1. gh1 was cultivated in flasks. after 6 days of induction by 0. 5 % methanol, the supernatant was checked by 16. 5 % tricine - sds page, which showed there was a band in the position of 3. 5 - 6. 1kd, then it was isolated and desalted by ultrofiltration followed by ion exchange of cm column, after reverse phase hplc of ci8 and vacuum drying, the purified rhwtx - 1 was obtained which was proved to be correct recombinant hwtx - i by tricine sds - page, maldi - tof mass spectrometry, amino acid composition analysis, the n - terminal amino acid sequence and its biological activity, the final field of the purified rhwtx - i was about 80mg / l, accounting for 23. 6 % of it total secretory proteins

    將帶有hwtx -基因的ppic9k經blgii線性化后，轉化酵母宿主菌gs115原生質體后經篩選陽性克隆並經表型鑒定為his ~ + mut ~ s酵母菌，進一步用遺傳毒素g418篩選多拷貝的轉化菌株，命名為gh1 ；將gh1甲醇酵母菌用0 . 5的甲醇誘導表達，發酵上清經90飽和度的（ nh _ 4 ） _ 2so _ 4沉澱， yw - 3 （ mwc03000 ）的超濾膜超濾，再經cm陽離子交換， c _ （ 18 ）反相hplc純化得到分子量為4kd左右的組分，其中4289 . 05的組分經質譜鑒定，氨基酸組成分析和序列測定為正確的表達產物，生物學活性表明其活性為天然毒素活性70 % ，表達量為80mg / l 。
  7. But simpson had n ' t achieved the multiplatinum successes of peers britney spears and christina aguilera while lachey was a member of the boy band 98 degrees which sold far fewer albums than such acts as " n sync and backstreet boys

    辛普森並沒有象她的同期歌手取得巨大成功。拉基是男孩樂隊98度的成員，此樂隊比起其他類似樂隊' n sync和後街男孩唱片銷量要少得多。
  8. Generally, the designed channel spacing of itu - t standard in wdm systems is from 0. 8nm to 1. 6nm, which is much larger than the spacing required by actual communication bandwidth. for example in lightwave transmission systems, a sghz channel occupies only 0. 04nm at the wavelength band of 1. 55 n m. thus, most of the bandwidth in the actual transmission systems may be wasted

    Itu - t標準中wdm系統設計的通道間距為0 . 8nm - 1 . 6nm ，這遠遠大於實際使用的通道帶寬，例如一個帶寬為5ghz的通道在1 . 55 m波段只佔據了約0 . 04nm的波長范圍，因而導致大部分的帶寬被浪費。
  9. Either the boron nitride ( bn ) thin films with different cubic phase content were deposited on n - type si ( 111 ) and fused silica substrates by radio frequency ( rf ) sputtering using two - stage deposition process. the films were characterized by fourier transform infrared ( ftir ) spectroscopy. the transmittance te ( ) and reflectance re ( ) were obtained as a function of incident photo wavelengths and the thickness of films was measured by alpha - step. the absorption coefficient was calculated from te ( ) and re ( ). the optical band gap ( eg ) of the films was determined by effective medium form of formula containing eg

    本文還研究了立方相含量與光學帶隙的關系，在n型si （ 111 ）片和熔融石英片上沉積出不同體積分數的立方氮化硼薄膜，薄膜的成分由傅立葉紅外吸收譜標識；用紫外-可見分光光度計測量了沉積在石英片上的bn薄膜的透射光譜te （ ）和反射光譜re （ ） ，薄膜的厚度用臺階儀測得。
  10. The clues and techniques to improve the resolution of data processing are 1 ) removing the affection of near surface factors on data acquisition, including static correction and noise eliminating technique etc, 2 ) broadening the frequency band of pre - stack seismic data, including amplitude compensation and pre - stack deconvolution etc, 3 ) improving s / n ratio of high frequency and weak reflection signals through multiple coverage with high precision velocity analysis, residual static correction and high - order nmo, raising " dead line of high frequency reflection ", and 4 ) identifying post stack effective reflection frequency band, enhancing dominant frequency and so on

    主要包括：消除近地表因素對資料採集的影響，包括靜校正和噪音壓制技術等；疊前拓寬地震資料領帶，包括振幅補償和疊前反褶積技術等；藉助高精度速度分析、剩餘靜校正和高次項nmo技術，通過多次覆蓋疊加，消除資料中隨機噪聲干擾、提高資料信噪比，尤其是高頻端反射信息的信噪比，改善高頻反射和弱反射信號信噪比，提高「高頻反射死亡線」 ；疊後有限反射頗帶識別、抬高優勢頻率等。
  11. It is shown by structural seismic response of four wavelets that littlewood - paley wavelet is not suitable for structural seismic response, because structural response is too small, meyer wavelet is a better wavelet for structural seismic response, for it ' s structural response is agreement with the finite element method, and also harmonic wavelet, structural response under earthquake is a little bigger than finite element method, structural response under odd exponent wavelet is also bigger than finite element method, this method is very simple by wavelet transform, wavelet transform method is different from old methods, one is with which not only knows the effects of earthquake wave detail frequency - band on structural response, but also considers earthquake wave ' s non - stationary of frequency and time - domain value, another is the second mode shape and higher mode shape response that do n ' t attenuate so fast

    通過對這四種小波的結構地震反應分析研究說明： littlewood ? paley小波不適合於用來作結構地震反應分析，因為在littlewood ? paley小波下的結構地震反應太小，不符合實際情況；用meyer小波作結構地震反應分析比較合適，和有限元法的結果比較接近；也可以用諧波小波來作結構地震反應分析，只是在諧波小波下的結果略為偏大；單邊指數小波下的結構地震反應分析比有限元法稍大一點，它通過小波變換大大簡化了結構地震反應分析。用小波變換方法來進行結構地震反應分析和以往方法不同的是：它不僅可以知道地震波的具體頻率段對結構反應的影響，而且同時考慮了地震波的幅值非平穩性以及頻率非平穩性；另外與以前方法得到的結果有差異的是，第二振型及以後的高一點的振型的反應沒有以前的方法衰減得快。
  12. Abstract : combining the tenth five _ year plan of tianjin telecommunication, the paper states some problems relating to the planning of the local telephone switching network in the new period, such as the situation that was faced for the telecommunication networks, the major questions that were needed to solve in planning, the problems of continued development in telephone services and the transit of n _ band network to b _ band network

    文摘:結合天津電信「十五」規劃的編制，闡述了在新時期本地電話交換網規劃中所涉及的幾個問題，如電信網面臨的形勢和規劃中需要解決的重大課題、電話業務持續發展的問題及由窄帶網向寬帶網過渡的問題等等。
  13. Bulk silicon, with indirect band gap of 1. 12 ev, does n ' t emit visible light at room temperature

    本體硅為間接禁帶半導體，且禁帶寬度比較窄（ 1 . 12ev ） ，在室溫下很難發可見光。
  14. The mechanism of the luminescence has been discussed. bulk silicon, with indirect band gap of 1. 12ev does n ' t emit light at room temperature

    本體硅為間接禁帶半導體，且禁帶寬度較窄，室溫下很難發光。
  15. In 1985, takeshi kodama et al. [ 12 ] expressed the wavefunction as the combination of the function of the single electron in a one - dimensional square well with the finite barrier to calculate the binding energies of the exciton. this form does n ' t satisfy the continuity of the function and of its derivative divided by the band - mass

    1985年， takeshikodama等人在計算激子的束縛能時把單電子的波函數（ x ， y ）取為一維有限深方形量子阱中波函數的乘積，這種取法在邊界上不滿足波函數的連續性條件及粒子流（ 1 / m ~ * ） ' （ x ， y ）的守恆條件。
  16. P - n, n - dimethlaminobenzates ( ( ch3 ) 2nc6h4coor ) have typical ict characteristics. the ct emission and the fluorescence intensity ratio of ct band to normal band ( ict / ile ) were different in organic solvent and in the aqueous solvent with ctab micelle when the length of r group was increasing

    N ， n -二氨基苯甲酸酯系列具有典型的雙熒光，從甲酯到辛酯隨著酯烷基鏈的增長，它們在有機溶劑和膠束水溶液中的熒光峰位置以及雙重熒光強度之間的比值不同。
  17. The beatles is a famous rock ’ n ’ roll band in britain

    甲殼蟲樂隊是英國有名的搖滾樂隊。
  18. Because multi - band wavelet can describe signal more delicately and more compactly than two - band wavelet, and multi - band wavelet can be derived from the infinite iteration of multi - channel filter banks. by means of a detailed discussion for a effective design method of linear phase pr iir filter banks, the author obtain that the method is only fit for two - channel filter banks, but ca n ' t be extended to arbitrary m - channel ( m > 2 ) filter banks

    由於m帶小波比2帶小波分析信號更細致、更緊湊，而m帶小波可由迭代的m通道濾波器組獲得，所以本章分析了一種兩通道線性相位完全重構無限脈沖響應濾波器組的有效設計方法，希望可推廣用於m （ m 2 ）通道。
  19. The photoelectric property of a - si : h films is closely associated with hydrogen content in films. on the one hand, hydrogen incorporated as monohydride ( si - h ) saturates dangling bonds in films, and on the other hand, hydrogen incorporated as polyhydride ( si - h2, si - h3, ( si - h2 ) n ) introduces defect in films and thus increases the density of localized electronic states in band gap

    A - si ： h薄膜的光電特性同膜中的氫存在密切關系，一方面，氫以單氫化合物（ si - h ）方式結合到膜中，從而飽和了膜中的懸掛鍵；另一方面，氫以多氫化合物（ si - h2 、 si - h3和（ si - h2 ） n ）方式結合到膜中，反而在膜中引入了缺陷，使帶隙中的局域態密度增大。
  20. The main products are as follows : the steel wire weaves bringing, steel band, the annual produc - tion capacity steel wire weaves and takes 6 millio - n meters, 6 million meters of steel bands

    主要產品有：鋼絲編織帶鋼帶，年生產能力鋼絲編織帶600萬米，鋼帶600萬米。
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