組態反轉 的英文怎麼說
中文拼音 [zǔtàifǎnzhuǎn]
組態反轉
英文
inversion of configuration-
Newcastle disease virus ( ndv ) strain 695, a thermostable nature avirulent strain, were replicated in embryonated chicken eggsand its rna was extracted from allantoic fluid. referred to the reported sequence of f gene, a pair of primers were designed and synthesized. f gene of ndv b95 strain was amplified by rt - pcr, the pcr products were checked by agrose gel electrophoresis and purified by agrose gel fracion method
利用從國外引進的新城疫熱穩定性天然弱毒b _ （ 95 ）株接種spf雞胚繁殖病毒，經處理后提取病毒的基因組rna ，參考國內外發表的ndv融合蛋白基因序列，設計一對特異性引物，經反轉錄聚合酶鏈式反應（ rt - pcr ）擴增出約1700bp大小的特異性片段，將此片段回收純化后，利用t - a克隆技術將其克隆到pgem - t - easy克隆載體中，再轉化大腸桿菌jm109感受態細胞，轉化后經分子量比較、 pcr鑒定和酶切分析篩選陽性克隆。In vitro chondrogenesis of tissue engineered biomaterial in rotating wall vessel bioreactor
轉壁生物反應器中動態分化組織工程軟骨的實驗研究Culture of mg7 hybridoma cells and detection of antigen - binding affinity of mg7 mab by elisa 2. construction and identification of mg7 recombinant phage antibody library mrna was isolated from cultured mg7 hybridoma cells and converted into cdna ; the variable fragments of heavy and light chain were separately amplified and assembled into scfvs with a specially constructed dna linker by pcr. the scfvs dma was ligated into the phagmid vector pcantabse and the ligated sample was transfered into competent e. co / / tg1 to generate a bacterial form of mg7recombinant phage antibody library ; volume and recombinant ratio of the library were evaluated by means of bacterial colony counts and restriction analysis ( ecor i and hind iii )
Mg _ 7重組噬菌體抗體庫的構建及鑒定從培養的mg _ 7雜交瘤細胞中提取並分離mrna ，反轉錄成cdna ；利用pcr分別擴增mg _ 7單抗的重鏈及輕鏈可變區基因，並通過? dna連接子將二者連接起來形成mg _ 7單鏈抗體基因；將mg _ 7單鏈抗體基因插入pcantab5e ；將連接產物轉化感受態tg1大腸桿菌，制備細菌形式的mg _ 7重組噬菌體抗體庫；通過菌落計數和限制性酶切分析（ ecor和hind ）評估mg _ 7重組噬菌體抗體庫的容量和重組率。Focusing on the performance evaluating and the design of tripropellant injector, adopting the cold test rig with background pressure supply, malvem particle analyzer, ccd photography system, tripropellant hot test - bed, numerical simulation software and auxiliary theoretical a nalysis, the d ischarge c haracteristic a s w ell a s a tomization p erformance o f the injector and the combustion performance as well as the mode - transition characteristic of thrust chamber are studied detailedly based on the 3 different structures of coaxial tripropellant injector, large numbers of important conclusions are gained
本文圍繞三組元噴嘴的性能評定及設計方法。採用反壓冷試臺、馬爾文測粒儀、 ccd高速攝影系統、三組元發動機熱態試驗臺、數值模擬程序及輔助理論分析等多種技術手段和研究方法，對三種結構的同軸式三組元噴嘴深入進行了噴嘴流量特性和霧化特性、推力室燃燒性能和轉工況性能研究，得到了大量重要結果。For getting the runner characteristics more correctly, researching the representation of runner characteristics of the kaplan turbine in this paper, and using this method of modifying runner characteristics to calculate the transient of hydraulic power station. improving the calculating model of the axial thrust in the kaplan turbine ' s transient. base on the theory of screw propeller without any boundary, using the theory of screw propeller with pipe, and the formula to calculate the dynamic axial thrust during transient is developed
本文對轉槳機組在過渡過程中的槳葉劃水產生水推力的數學模型進行了改進，在原來使用無邊界螺旋槳進行等效的基礎上，使用了導管螺旋槳對轉槳機組中的槳葉劃水進行等效，並且比較詳細的分析了影響轉槳機組軸向水推力的各個因素，以及給出了動態計算軸向水推力的公式，通過計算表明，使用改進后的動態水推力計算模型得到的結果能較好的反應實測的動態軸向水推力。There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor
本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。The paper makes simulation for each type of electro - hydraulic regulating system of turbine. the results of simulation show that for the francis and kaplan turbines the contradiction between regulation time and pressure increasing can be solved by logical chosen of feedback adjustment coefficient and control cost - weighting matrix. for tublar turbine the dynamic matrix pi control scheme can effectively solves the difficulty of speed stabling of this type turbine
本文對各種機組調節系統進行模擬，結果表明，對于混流式和軸流轉漿式機組，通過反饋校正系數和控制權矩陣的正確選擇，可以解決調節時間和水擊壓力上升的矛盾；對于貫流式機組，提出了動態矩陣pi控制方案，可以較好的解決此類機組轉速難以穩定的問題。Studying the heat - mass transfer and multi - spices electric - chemical reaction, a dynamic temperature model was deduced for molten - carbonate fuel cell stack. the thermal radiation, shift reaction, and the change of gas spices were considered in this model. establishing momentum equation, the paper has developed a 3d temperature and flow fields model for mcfc stack based on cfd technique
建立了熔融碳酸鹽燃料電池堆內部單體的暫態溫度模型，並考慮了電堆的輻射換熱、轉換反應、反應氣體組分變化對溫度場的影響；根據mcfc的微分控制方程組，考慮氣體組分的熱力學性質及動量變化的影響，利用數值分析方法求解熔融碳酸鹽燃料電池堆的三維流場與溫度場，分析了各作用因素對熔融碳酸鹽燃料電池堆溫度分佈的影響機制。This thesis measured the vibration signals of 1 # and 2 # running turbine - generator sets in a generating plant and their vibration signals that are indispensable to the study are gained. firstly, the low frequency faults of machine stand in generator side, rotor unbalance, misalignment, oil whirl, oil whip are diagnosed by fft analysis. secondly, applying wavelet theory to probing the instantaneous abnormal phenomena of the signals and to show their components
首先應用fft分析診斷出1 #和2 #汽輪發電機組存在的發電機側機座松動、轉子失衡、不對中、油膜渦動、油膜振蕩等故障，再運用小波分析探測信號中的瞬態反常現象並展示其成分，比較精確地診斷出了該發電廠運行中的1 #和2 #汽輪發電機組存在的碰摩故障。On the base of thoroughly studying dynamic characteristic of tractor - implement combination, a control project of three parameters was put forward in the paper. the three parameters were engine load rate, drive wheel slip and work resistance. an integrated control model based on three parameters was established, which reflects colligated dynamic character of the unit
拖拉機作業機組中，很多參數存在著耦合作用，給綜合控制帶來一定的難度，本文在深入研究機組動態特性的基礎上，提出了發動機負荷率、驅動輪滑轉率和作業阻力三參數的綜合控制方案，它反映了機組的綜合動態特徵，並建立了基於這三參數的綜合控制模型。In this paper, basic circuit models of cc - current mirror and active impedance are analysed and a new active feedback current mirror is proposed which can achieve larger output impedance, higher current transfer precision, lower power and wider signal dynamic swing
系統地分析了電流傳送器的組成模塊? ?電流鏡和有源電阻，同時提出了一種改進型有源反饋電流鏡電路。該電路能大大提高輸出電阻，同時能保持原電路的電流轉換高精度、低功耗、更寬更良好的輸出電壓動態范圍。However, conventional soms handle only numerical data, categorical data has to be converted to boolean data resulting in unable to disclosure the similarity among the high - dimensional data
然而，傳統自組映射圖只能處理數值型資料，種類型資料必須透過編碼轉換成一群二元數值型態資料，因而無法反映種類型資料值之間的相似程度。Tumor necrosis factor receptor position196 polymorphism in systemic lupus erythematosus and establishment of recombinant retroviral vector
196位點基因多態性及重組反轉錄病毒載體的構建The bic method generalized from ar model was adopted to determine the number of input neurons in grnn prediction model. the grnn was applied to single - step and multi - step ahead prediction of the vibration time series of a rotating machine, and its performance was compared with that of 3 - layers perceptrons network with error back propagation training algorithm ( bpnn ). it is indicated that the grnn is more appropriate for prediction of time series than the bpnn, and the performance of grnn is qualified even with sparse sample data
研究了基於廣義回歸神經網路（ grnn ）的大型旋轉機械振動狀態預測，提出了應用bic準則確定grnn預測模型輸入神經元數目的方法，將grnn用於大型機組振動峰?峰值時間序列的預測，與採用誤差反向傳播學習演算法的三層前饋感知器網路（ bpnn ）的預測結果對比表明， grnn的預測性能優于bpnn ，而且，即使樣本數據稀少，也能獲得滿意的預測結果。分享友人