擬超顯性 的英文怎麼說

中文拼音 [nǐchāoxiǎnxìng]
擬超顯性 英文
pseudo overdominance
  • 擬 : 動詞1. （設計; 起草） draw up; draft 2. （打算; 想要） intend; plan 3. （模仿） imitate
  • 超 : Ⅰ動詞1 （越過; 高出） exceed; surpass; overtake 2 （在某個范圍以外; 不受限制） transcend; go beyo...
  • 顯 : Ⅰ形容詞1 （明顯） apparent; obvious; noticeable; evident 2 （有名聲有權勢的） illustrious and inf...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 顯性 : [生物學] dominance顯性性狀 dominant character; 顯性修飾因子 dominigene; 顯性遺傳 dominant inheritance
  1. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。
  2. Finally, with the optimized chaos sequences, the results of software simulation on vhf - rc indicates that ds - ss outbalances the bpsk system without spread spectrum due to ber and the ds - ss with kent sequence is better than the one with golden sequence in some extend

    最後本文對數字混沌序列進行了優選，在超短波中繼通道模型上的模擬結果表明混沌直擴通信相比于非擴頻的bpsk通信在誤碼率方面明顯較低；相對于線性擴頻碼（ gold序列） ，同樣誤碼率較低。
  3. Professor y s li, chair professor of coastal and environmental engineering head of department of civil and structural engineering, the hong kong polytechnic university, has confirmed that the further review report has convincingly demonstrated that criii satisfies the " overriding public need test " and that the proposed reclamation does not go beyond the minimum required by the overriding need

    香港理工大學海岸及環境工程講座教授暨土木結構工程繫系主任李毓湘教授確認，進一步擬備的檢討報告書充分顯示中區填海第三期工程符合"有凌駕性的公眾需要測試" ，而建議的填海工程並沒有超越凌駕性需要的最低要求。
  4. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求，選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化，再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法，通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍，以速度調節器和電流調節器的參數為染色體中的基因，通過遺傳演算法在搜索范圍中優化這些基因，獲得優化解.實驗結果表明，所設計的參數能使系統性能指標有顯著提高
  5. The results show that wavelength locates in gain zone of semiconductor optical amplifier, and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier. a high quality amplified signal pulse can be achieved. the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa, and the distance and the peak power of conversion optical pulse can be increased notability, and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion

    我們應用二階超高斯光脈沖與高斯信號脈沖同時注入soa和應用soa與非線性光學環鏡（ nolm ）相結合的方案來對信號脈沖進行壓縮整形，模擬顯示，在調節系統合適參數的情況下，波長位於soa增益區的二階超高斯控制光脈沖在具有較高的峰值功率和適當時延下輸入soa時，最後可以得到放大的高質量超簡訊號光脈沖；在基於soa的交叉增益調制（ xgm ）全光波長轉換中，採用級聯的soa能有效地使反轉光脈沖的頻率啁啾得到有效降低，波長向下轉換的距離和反轉光的峰值能量都得到明顯提高，降低了利用交叉增益調制（ xgm ）波長轉換中對波長精度的要求，從而提高了波長轉換的靈和性。
  6. Making full use of the characteristics of virtual instrument which function and parameter can define automatically, the upper computer processes the data, display the result dynamically, and emit an alarm, record and storage the abnormal condition automatically, and suggest how to deal with the abnormity urgently. the acquisition of the automobile information in working state has been studied

    上位機將獲得的車況信息處理后，將常規信息顯示與異常信息顯示相結合，並充分發揮虛擬儀器功能與參數能自動定義、動態畫面可視性強的特點，採用模擬、數字等多種方式對工況信息進行綜合顯示，並對超限工況報警和自動記憶存儲，對汽車出現的各種異常情況給出緊急處理建議。
  7. In addition, whether and how the bl receptor photl regulate ca2 + - channels in the pm has not been investigated. in present study we aimed to identify ca2 + channels involved in bl signaling cascade. the patch clamp technique was applied to record the channels on the hypocotyl protoplasma of wild type and photoreceptor mutant of arabidopsis thaliana

    採用膜片鉗技術在擬南芥下胚軸原生質體質膜上記錄並鑒定到一種超極化激活的鈣離子通透性通道，對其特性分析發現photl - 5突變體與野生型擬南芥的質膜鈣離子通透性通道電流有顯著差異，該差異可能是二者對胞外鈣表現不同反應的原因。
  8. Finally, system software exploiture is based on kingview 6. 5 and we used three - dimensional sculpt to simulate locale equipments and realized dynamic simulation, real - time display and memory, historic query, upon or under parameter alarm display, alarm query and historic report forms print, and we can realize internet management and view directly etc. according to industry ethernet setting, firewall ’ s install and high - speed transmission it can satisfy system ’ s security, credibility and real - time in coal mine which is new scada system of mine monitor and control warming system

    最後，利用「組態王」軟體進行系統開發，生動的描繪現場設備並動態模擬設備工作，實現實時數據顯示與存儲，歷史數據查詢列印，超限或低限報警，報警查詢，同時能實現網內權限管理，局域網內直接訪問數據等。通過工業以太網路軟體設置和系統防火墻的安裝以及高速傳輸質量能使系統在實時性、安全性和可靠性等方面滿足煤礦實時監測系統應用的要求，該系統可以說是新一代scada煤礦實時監測監控系統。
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