系譜缺陷 的英文怎麼說

中文拼音 [xìpǔquēxiàn]
系譜缺陷 英文
lineage defect
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 譜 : Ⅰ名詞[書面語]1 （按類別或系統編成的書或冊子等） table; chart; register 2 （指導練習的格式或圖形）...
  • 缺 : Ⅰ動詞1 （缺乏; 短少） be short of; lack 2 （殘缺） be missing; be incomplete 3 （該到而未到） be ...
  • 陷 : Ⅰ名詞1 （陷阱） pitfall; trap2 （缺點） defect; deficiency Ⅱ動詞1 （掉進） get stuck or bogged do...
  • 缺陷 : defect; fault; faultiness; vitium; lesion; flaw; disorder; imperfection; drawback; blemish
  1. The variations of distortion coefficient of ultrasonic pulse frequency spectra at defective zone in concrete

    超聲頻譜畸變系數在混凝土缺陷區的變化
  2. In this project we use etching method x - ray transmission and tem observe and study the form mechanism of cell structure and linear structure ; use sem observe cell structure directly and evaluate effect to the electrical properties of substrate ; at last, use high resolution tem and eds to observe and identify the nature of microdefects

    發現幾乎所有高位錯密度的si - gaas單晶的表層都具有網路狀胞狀結構或系屬結構，首次對該胞狀結構和系屬結構的形成機制進行了研究；直接觀察微缺陷，配合eds （能量色散譜）鑒定si - gaas中微缺陷的物理本質，同時分析其產生原因，討論與位錯的相互作用。
  3. Based on the experiences of the developed countries and the th theory brought forward by the forthgoers, the main contributing conclusion of the dissertation includes : firstly, it elaborates the inner structure and the pedigree within the th of university - industry - government. secondly, it points out the disfigurements and flaws in chinese university - industry - government relationship and then puts forward the mission and countermeasures to cope with these problems. last by not least, it finishes a quantitative analysis of chinese th model with the scientometric, the webometric and the triple helix algorithm and then according to the arithmetic result, it compares the chinese th with some other typical countries " and finally draws some valuable conclusions

    結合發達國家區域的實踐經驗與前人已有的理論工作，本文深入研究了網路時代的三方合作主題，主要貢獻有：給出大學?產業?政府三重螺旋體的內部結構和圖式譜系；指出國內「產學研」缺陷與紕漏，明晰了「官產學」的應對與使命；最後運用th演算法和科學計量、網路計量手段實現了一個有關中國三重螺旋模型的定量分析，並與其他典型的國家地區三重螺旋作出比較，得到若干有價值的結論。
  4. Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system

    該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。
  5. Because the characteristics of frequency domain is slightly affected by the coupling state and only related with the defects by revising of the system, the technology of ultrasonic wave spectrum analysis is necessary tool for quantity or automatic testing

    由於頻域特徵受耦合狀態等的影響較小，且經過系統修正後，能夠做到頻域特徵僅與缺陷有關，因此超聲波頻譜分析技術是超聲波定量檢測或自動檢測不可少的工具。
  6. In this article, low temperature photoluminescence measurements have been performed on as - irradiated and postannealed n - type 6h - sic, the postannealing temperature is up to 1650 ?. three sharp lines at 478 ^ 483. 3 and 486. 1nm respectively were observed for the first time in the as - irradiated samples and argued to be due to vacancy - like induced by irradiation

    對經輻照后未退火的n型樣品的低溫光致發光實驗中，首次觀察到三條尖銳的譜線，分別位於478 . 6 、 483 . 3和486 . 1nm位置，該系列譜線可能與輻照誘生的點缺陷有關。
  7. The experimental results showed that firstly, the distribution of resistiveity, mobility, carrier concentration, epd and ab - epd in gaas substrate was not uniform ; secondly, the distribution of electrical parameters depended on that of epd and ab - epd ; thirdly, mesfet devices performance correlated with ab microdefects ; last, as shown by pl mapping results, it is substrate with better parameters quality that could provide more chance to fabricate good mesfet devices

    實驗結果表明， lecsi - gaas的電阻率、遷移率、載流子濃度、位錯密度和ab微缺陷分佈都不是均勻的，且電參數的分佈與ab - epd 、位錯密度分佈有關。製作的mesfet器件的性能參數分佈與ab微缺陷有明顯聯系。從plmapping測量結果可以看出材料的襯底參數好，則pl譜的強度高， pl譜均勻性也好，器件參數也好，就有可能製作出良好的器件與電路。
  8. Firstly, in wireless environment, receiver has no know the time delay between transmitter and itself. in ofdm system, ofdm data is transmitted as one symbol, so in order for correct demodulation, the correct start of symbol should be got from ofdm system to reduce the effect of isi. secondly, the high frequency utilization in ofdm is based on the orthogonal properties of sub carriers. if frequency offset is generated, the orthogonal properties among sub carriers will lost, that will cause inter carrier interference ( ici ) and high ber of system

    Ofdm技術也存在著一些缺陷，首先，在無線環境中傳輸的ofdm信號對定時要求高，為了減少碼間串擾（ isi ）影響，必須從接收信號中提取出正確的符號起始位;其次， ofdm系統對頻率偏移敏感， ofdm技術的高頻譜利用率和傳輸可靠性均以子載波的正交性為基礎，如果接收機和發射機之間發生頻率偏移，子載波之間就會失去正交性，導致嚴重的子載波間干擾（ ici ） ，降低系統性能。
  9. Wavelet transform is a wonderful method, which have adjustable resolution in time and frequency fields leading to more subtly analysis for a signal segment. it works in a good pattern according with the rule of human ears distinguishing frequencies from voice. for stft having inevitable disadvantages in analysis of unstable signal such as speech signal, as a result of study on wavelet theory and speaker recognition techniques, two feature parameters, iwptc ( incomplete wavelet packet transform coefficients ) and wptc ( wavelet packet transform coefficients ), are got based on wavelet transform

    針對短時傅立葉分析在提取說話人特徵參數時的缺陷，本文通過對小波理論和說話人識別技術的研究，借鑒了一種傳統的基於聽覺機理的特徵參數mfcc （ mel頻域倒譜系數） ，利用小波變換、小波多分辨分析和小波包變換，構造出了兩種基於小波變換的說話人識別特徵參數： iwptc （不完全小波包變換系數）和wptc （小波包變換系數） 。
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