轉換突變 的英文怎麼說

中文拼音 [zhuǎnhuàntūbiàn]
轉換突變 英文
transition mutations
  • 轉 : 轉構詞成分。
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 突 : Ⅰ動詞1 （猛沖） dash forward; shoot out 2 （高於周圍） protrude; bulgeⅡ副詞（突然） abruptly; sud...
  • 轉換 : change; transform; convert; switch
  • 突變 : 1 （突然急劇的變化） sudden change; change suddenly; transilience; accident; saltation; revulsion...
  1. When the cur - cuit resets, the chip remains accepting state, works in burst mode, and adopts dpsk modulation mode. it proceeds quadrature - sampled intermediate frequency signal after the ad9057 has converted, then down - converses, despreads and demodulates. the demodulated baseband signal will be sended into scm to dispose through interrupt

    上電復位后，晶元處于接收狀態，工作在突發模式下，採用dpsk調制方式，將ad9057轉換完的中頻信號進行復正交取樣後下變頻、解擴、解調，通過中斷將解調完的基帶信號送入單片機處理；處于發送狀態時，可將數據擴頻、調制，經ad9768送出。
  2. Mutant, a powerful tool of analyzing genetic process, has already been extensively used for research in plant growth, metabolism and signal transduction infrared imaging techniques utilize every part of difference of infrared radiation of objects to obtain the details of the thermal images

    而突變體作為剖析復雜生物學過程強有力的工具，已被廣泛用於植物發育、代謝途徑及細胞信號轉導的研究。遠紅外成像技術是利用物體自身各部分對紅外熱輻射的差異把紅外輻射圖像轉換為可視圖像的技術。
  3. Regarded regional unconformity, transformation basement of tectonic regime, incised water channels, discontinuous surface of sidementary facies and exposed surface of lowstand as boundary of sequence, the palaeozoic in the researched area can be divided into three supersequence and fourteen sequence

    以區域不整合面、構造體制轉換面、水道下切谷、沉積相突變面及低水位期暴露面作為層序界面，將研究區古生界劃分為3個層序組和14個層序。
  4. Cdc5 gene is necessary for the g2 / m transition. cells with mutations in cdc5 can not finish the g2 / m transition, then die ; overexpression of cdc5 can shorten g2, the cell cycle as well. it also makes cells lessening

    1976年， nurse等在篩選裂殖酵母（ s . pombe ）細胞周期進程突變體的過程中得到了基因cdc5 ，后來經實驗證明cdc5對細胞周期g2期到m期的轉換是必需的： cdc5突變后造成細胞無法完成g2 m轉換而死亡；過量表達cdc5會縮短g2期，同時縮短整個細胞周期，並導致細胞變小。
  5. The best way to remain upright and in complete control of your machine is to avoid abrupt changes - fierce braking, hard acceleration, bad gear changing, sudden changes of course - and this means thinking ahead so that each change of condition is carried out smoothly and gradually

    為了保持坐姿筆挺，以及使電單車完全受控制，應避免急劇的動作，例如急劇煞車猛烈加速拙劣地轉換排檔轉波，以及突然改變行駛方向等。換言之，在行動前，要考慮清楚，以便整個動作能夠按部就班，暢順地完成。
  6. The design and application of ad6640 and ad6624 are fully discussed in this part. the design of software module includes the parameter design for ddc filter and the baseband signal processing of dsp. and the realization of the viterbi channel decoding algorithm by dsp and the simulation of the burst at the transmitter are discussed

    模塊的硬體設計主要包括： a d轉換器、數字下變頻器（ ddc ）以及dsp ，詳盡討論了a d器件ad6640和ddc器件ad6624的設計和應用；模塊的軟體設計主要包括： ddc濾波器參數設計和dsp的基帶信號處理，給出了viterbi通道譯碼演算法dsp實現和發射端突發形成的模擬實現。
  7. But because of an indeterminate flexible structure with many degree of redundancy, its variant inner force under dead - loading, nonlinear behavior and the correlation between construction method and completed structure, especially incessant conversion of system in construction method, these must bring many complicated change to construction internal force and displacement. these main factors resulting in construction control analysis become more important in the design of cable - stayed bridge

    但由於它屬于高次超靜定的柔性結構，恆載內力狀態具有多樣性、結構狀態呈非線性、施工過程與成橋狀態具有相關性，特別是在施工階段結構體系的不斷轉換，必然給橋梁結構帶來較復雜的內力和位移變化，這些特點使得斜拉橋的施工控制分析成為突出的研究課題。
  8. In the proposed technique the bemf waveform of bldcm need to be measured in advance at first, through computer simulation and frame transformation, the optimum q - axis current command is achieved. in order to minimize the torque ripple, the d and 0 - axis current command should be zero. furthermore, through reference frame transformation from dqo - axis to abc - axis, we can get the optimum current command in static abc reference frame

    在這種控制方法中首先測量出電機的實際反電動勢波形，然後通過計算機擬合和坐標變換，求得產生恆定電磁轉矩所需的q軸電流，令i _ d ~ * = i _ 0 ~ * = 0 ，通過坐標變換，得到三相靜止坐標系a - b - c下的參考電流i _ a ~ * ， i _ b ~ * ， i _ c ~ * ，利用電流滯環控制來產生pwm信號，由於這種控制方法中電流不會突變，從而可以較好的抑制轉矩脈動。
  9. Taking mount south tianmu as an example, it was found that the following measures of planning mountainous non - optimal tourism district could be adopted : using the tourism resources in a different and better way ; making full use of the tourism resources outside the scenic spot ; cooperating with the scenic spots nearby to attract more tourists ; improving the value of the tourism resources by shifting sightseeing scenes ; expanding and intensifying the characteristics of the scenic spot to make it more recognizable ; constructing tourism facilities to enrich the tourism resources ; designing landscape sight with the methods of landscape ecology to make it more unique

    摘要以浙江省臨安市南天目山為例，總結出山地型旅遊資源非優區的規劃方法：通過轉變資源利用方向，以扭轉資源劣勢；通過借用旅遊區區外景觀資源，豐富可利用的景觀資源；與區外旅遊區的聯動開發，以增強旅遊吸引力；通過觀賞場景轉換，以提升普通景觀旅遊資源的景觀價值；將旅遊區小的特色加以擴展與強化，以突顯易被認知的特徵；將某些旅遊設施進行旅遊項目的開發，以增強特色；運用景觀生態學原理，將大地景觀化平常為獨特等。
  10. After absorption, the all - frans - retinal isomerizes to a 13 - c / s configuration and br undergoes a photocycle : br570 k590 l550 m410 n520 o640 br570 bacteriohodopsin is a promising biological photoelectric material. we intent to conduct a more thermostable br by site - directed mutagensis. a point ( no. 274 t, no. 274 a turn to c g ) mutation was introduced to br gene by successive pcr technique, and cloned into puc - 19 vector

    本論文利用連續pcr的方法定點突變了br基因的一個氨基酸，突變位點選擇了br基因第273的t和274位的a ，把它們變為cg （ tyr替換為arg ） ，然後把突變的br基因克隆入嗜鹽菌表達載體pnov - r ，經測序鑒定的表達載體轉化br缺陷的嗜鹽菌，構建了tyr79 argbr突變體。
  11. The result of blastx shows that one orf is extracellular serine protease precursor gene ; 3 orfs function as regulatory genes ; 5 orfs are involved in secretion pathway ; 2 orfs are related to production of lps ; and the annotation functions of the other 3 orfs are not clearly related to extracellular protease prouduction. marker exchange method was used to study the relationship between the production of protease and the 3 orfs. a deletion mutant of xcc _ 4463 was constructed successfully

    Orf注釋表明，共中一個基因為胞外蛋白酶結構基因， 3個基因與合成調控有關， 5個與轉運分泌有關， 2個與lps合成有關，其餘3個orf的注釋功能與胞外蛋白酶的關系未見報道，為研究這3個orf與胞外蛋白酶產生的關系，採用同源雙交換orf缺失法進行了進一步驗證，成功地構建了xcc _ 4463缺失突變體，所得缺失突變體經檢測胞外蛋白酶減少，在寄主上致病性降低。
  12. Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent

    本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。
  13. Derived from the geographical features, the overall characteristics of russian diplomacy demonstrates itself as follows : there exists a great leeway for diplomatic maneuvers allowing for greater probabilities of transformations in both foreign policies and diplomatic focuses ; much importance is attached to coping with the relationships with its neighbors by adopting different diplomatic strategies towards nations of different ethnicities and religions ; avoiding double - front or multi - front battlefield occupies a dominant place in russian diplomacy ; and another outstanding position is given to anti - blockade diplomacy with an special effort to obtain and maintain the possession of marine outlets

    這些特徵決定了俄羅斯外交的一般特徵，具體表現為：俄羅斯外交周旋的空間大，外交政策轉換的概率大，外交運作的重心變化多；重視處理與鄰國之間的關系，對不同實力、不同民族宗教的鄰國採取不同的外交方略；避免兩線或多線作戰在俄羅斯外交中地位突出；注重謀取和維護出海口，反封鎖外交在俄羅斯外交中佔有重要位置等。
  14. Fault feature in stator current is extracted by singularity detection of signals with half - complex wavelet transform and it can be helpful to the real - time detection of motor fault. harmonics caused by the fault of motor is detected accurately with real - time harmonics cancellation method. steady state current and starting current in stator are analyzed with real - time harmonics cancellation method and the improved harmonic wavelet separately, after that the feature component of rotor fault can be detected successfully

    採用半復小波變換對電機定子電流進行奇異性檢測，提取故障突變信號，有助於電機故障的實時診斷；通過實時諧波消去法檢測定子故障引起的高次諧波電流；採用改進的實時諧波消去法精確提取電機穩態電流中的轉子斷條故障特徵分量；為了進一步提高轉子斷條故障診斷精度，利用改進的諧波小波對電機起動電流進行時頻分析，提取轉子斷條故障特徵。
  15. The results showed : ( 1 ) in the d - loop of mtdna genome from 18 individuals, there were only transition and transversion, were not insertion and deletion, and the frequency of transition was higher than transversion ; ( 2 ) and nucleotide diversity was 0. 0011, the sequence divergence values among haplotypes was 0. 005

    研究結果顯示： （ 1 ） 18隻大鴇的301bp - 330bpmtdna控制區序列的突變只有轉換和顛換，無插入和缺失，且轉換的頻率高於顛換； （ 2 ）核苷酸多態性只有0 . 0011 ，不同單元型間的序列差異值為0 . 5 。
  16. This paper points out the main factors affecting the abrupt changes of the lateral stiffness and shear forces near the transfer storey are the stiffness of peripheral tube and the level of transfer storey by the analysis of the abrupt changes in 10 types of tube structure

    通過對10種帶轉換層筒體結構轉換層附近剛度和剪力分佈突變的計算分析，指出外筒剛度和轉換層設置高度是影響帶轉換層筒體結構剛度和剪力分佈突變的主要因素。
  17. Pole shifts are a cataclysmic inversion of the planet ' s axis of rotation, up to 180 degrees ; a sudden slippage of the planet ' s solid crust around the molten core

    磁極轉換是行星旋轉軸的大變動倒置，等於180度翻轉；在熔化的地核周圍行星固體外殼突然意外的滑移。
  18. The development of sedimentary environment of yanchang formation be analyzed and discussed further. based on the analyses of all kinds of sedimentary deposit. under the direction of the theory and methods of sequence stratigraphy, 4 type i sequence boundary could be recognized in the study area, according to the marked bed including plane of deflation, scour, the plane of lithological salutation, structural transformation, down cutting channel sheet sand and so on. type i sequence consists of low stand systems tract, transgressive systems tract and high stand systems tract

    本文採用當代層序地層學理論和方法，利用風化剝蝕、沖刷面、巖性巖相突變、結構轉換面、構造機制轉換面等層序界面的識別標志，將研究區延長組劃分為四個層序，其層序界面都為型層序界面，具有三元體系域結構特徵，由低水位體系域、水進體系域和高水位體系域三個部分組成。
  19. ( 2 ) the basic extension methods such as extension transformations and transforming bridge method are applied to tackle conflicts, which is a new method to tackle conflict. the dissertation is sub - project " research on conjugate analysis of enterprise resource and extension resource " ( no

    （ 2 ）將可拓學中的基本方法如可拓變換方法、轉換橋方法等應用到沖突問題的處理過程中，嘗試了一種新的解決沖突問題的方法。
  20. Finally the paper analyses and measures the miracle of chinese economic growth to make the conclusion : during the more twenty years since the opening and reform, the economic growth of china has evidently demonstrated the character of leapfrogging - oriented growth. on the economic growth of china, the component of capital deepening has basic effect, and the component of efficiency enhancement has evident effect, however, the component of technology innovation has little effect. such growth pattern accommodates present economic development stage of china, and with the transition of the stage, growth dynamic must transform correspondly

    論文最後對中國自身的「增長奇跡」進行了解讀和測度，得出基本判斷為:改革開放以來20多年的中國經濟增長已明顯呈現出了蛙跳型增長的特徵，為一世界經濟發展史增添了持續快速增長的「中國故事」 ;中國的經濟增長中資本深化起了基礎性的作用，技術效率提高的因素也十分明顯，而技術創新的作用還不是十分突出，這種增長格局與我國現今的經濟發展階段是相適應的，但隨著我國經濟發展階段的轉換，增長動力也必須相應的變換。
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