階調系數 的英文怎麼說

中文拼音 [jiēdiàoxìshǔ]
階調系數 英文
contrast factor
  • 階 : 名詞1. （臺階） steps; stairs 2. （等級） rank 3. [醫學] （耳蝸的三個螺旋管的任一個） scala 4. [數學] order 5. [地質學] stage
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Thirdly, it outlines research on mechanism of adjusting iwt supply and its countermeasures to chinese iwt fleet. the study on applying production function to quantitate transportation capacity is advanced. by using the theory and method of optimum control to dynamic system, a model of adjusting transportation capacity by regulative fund is established for the first time

    第三部分研究了內河運輸供給調控的機制和現階段中國內河運力供給調控的思路與對策；提出並研究了用生產函數模型定量描述運輸能力的方法；運用動態系統最優控制的理論與方法，首次提出並研究了基於調控基金投放的運力供給調控模型。
  2. The architecture and design methods of - modulators are studied. based on it, the bits of quantizer, oversampling - ratio and the orders of modulator have been designed

    對調制器的結構和設計技術進行了研究，根據系統要求設計了量化器位數，調制器過采樣比和階數。
  3. This paper also tested each model and system - the second loop of qinshan nuclear power station ( the second term ) ， computed the balance point ， tested the performance of step disturbance and runback loads for system ( no adding adjustment system ) ， analyzing the factors effecting the first tiptop rotate speed of turb and time which the rotate speed reach the tiptop

    在模擬模型上，完成了穩態計算、系統階躍擾動試驗、甩負荷試驗（未加調節系統）等測試，主要監控和分析了汽輪機動態特性中兩個重要參數：汽輪機第一飛升轉速、飛升時間。
  4. Test results show that under 2 - tone test in 5mhz tone spacing, the power amplifier system achieves - 50dbc imd3 with 20w output power, improved 20db in imd3 compared with the one without linearity. estimated value of aclr comes to 53db, which satisfies the 3gpp requirement for wcdma base - station transistor. further tests with alterative input power indicate a steady suppression to the imd3 controlled by the adaptive system

    測試結果表明，自適應前饋功放系統在雙音輸出功率20w時三階交調系數小於- 50dbc ，鄰通道泄漏抑制比（ aclr ）的估算結果大於53db ，在理論上滿足3gpp對wcdma基站發射機的指標要求。
  5. It is demonstrated that the solution for 141 000 order normal equations for a simulated astro - geodetic network ( 47 057 points ) and a space one ( 476 points ) iterates 4 993 times to converge to 1 10 - 18 second, taking 28 min and 47 seconds, on a pii / 233 computer, showing over 40 times more efficiency, as compared with the coefficients unadjusted

    利用模擬的天文大地網（ 47057點）和空間網（ 476點）在pii / 233微機上解算14 . 1萬階方程組共迭代4993次（收斂至1 10 - 18角秒） ，花費機時28分47秒，與未進行系數調整相比，功效提高40多倍。
  6. The mathematical model for two - level hierarchical system optimization and their decomposition - coordination algorithms

    二階遞階系統優化的數學模型及其分解協調演算法
  7. Relating closely to the main problem of the high sidewall and wide span underground cavities excavation stability of xiluodu hydroelectric project, the evolution characters of geo - stress field in deep - cutting gorge and the whole features of the stress field, strain field and plastic failure zone around the underground chambers after excavation are studied systematically in the dissertation, based on a great deal of data gathered in field investigation and taking the flac3d v2. 0 software as basic computation tools. meanwhile, in the course of research, the new methods of dynamic numerical simulation are summarized and applied. furthermore, the effects of rock mass qualities, initial geo - stress field and excavation procedure on surrounding rock mass stability are discussed

    本文緊密結合溪洛渡水電工程大跨度、高邊墻復雜地下廠房洞室群，施工開挖過程中和開挖后圍巖穩定性研究這一重大課題，在詳盡的野外地質調查工作和對大量基礎地質資料的整理與分析基礎上，以目前國際工程地質界公認的最新通用軟體flac ~ （ 3d ） 2 . 0版作為基本計算工具，從整個壩區地應力場的研究開始，通過動態數值模擬分析這一新的模擬思路，系統地研究了深切峽谷區地應力場多階段的特徵和演變規律，進而對左、右岸地下廠房洞室群開挖全過程中圍巖應力場、變形場和塑性破壞區的變化特徵，進行了全過程動態數值模擬研究，並詳細討論了圍巖質量、初始地應力場、施工開挖順序對大型地下洞室群圍巖穩定性的影響。
  8. Step - forced dynamic speed drop analysis digital control, dual ring, direct current and reversible speed governing system

    數控雙環直流可逆調速系統階躍擾動動態速降分析
  9. At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength

    由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。
  10. This paper deals with the solution for 200 000 order normal equations in combined adjustment of astro - geodetic and space networks by using conjugate gradient method, puts forward a scheme of adjusting the coefficients and a strategy of separation as well as mergence between the adjustment and inversion

    本文研究了用共軛梯度法解算天文大地網與空間網聯合平差中20萬階法方程的有關問題，提出了「系數調整策略」和「平差與求逆既分又合的策略」 。
  11. Secondly in enterprise valuation cost method should proceed with book value of the financial statement, regard market value as adjusting orientation and reduce application range of cost method. when income method is adopted, four principles should be paid attention to : a : stage - by - stage income model should be used which is made by early stage income current value added by later stage income increase. b : net profit and net cash flow should be the majority of income volume

    其次為：企業價值評估採用成本法應從財務報表的賬面價值入手、以市場價值為調整目標、減少成本法的應用范圍；採用收益法應以前期收益現值加後期收益額遞增的分階段收益模型，收益額以凈利潤、現金凈流量為主，收益預測以企業未來發展潛力分析為前提的銷售收入預測為主導，折現率堅持不低於無風險報酬率等四項原則，系數以回歸方程的測算為主；市場法中參照物企業選取應以同行業企業為基準、擴大數據來源，注重評估比率可靠性驗證、利用多種比率的配合等。
  12. According to the crown growth characteristics in industrial eucalyptus stand of short rotation, the unit step function model was put forward for the process with changing point of short rotation eucalyptus clones u6 based on the survey practical stands

    摘要針對短輪伐期桉樹人工林林分冠幅生長的特點，在現實林分調查的基礎上，模擬提出了適合有變點的短輪伐期桉樹u6無性系林分冠幅生長階躍函數模型。
  13. It is found that the electron beam may approach ideal bunching. high power microwave pulses with tunable frequency can be generated by post - accelerating the electron beam and carefully designing the extraction cavity. in terms of the pic simulation, the output power of 1. 25gw at 2. 2ghz and 480mw at 4. 4ghz in axial acceletron have been obtained

    用增加中間腔的辦法，大大提高了前兩階諧波電流分量，數值計算結果表明，其中一階諧波電流調制系數達到了140 ，二階諧波電流調制系數達到了68 ，通過改變提取腔的設計，可選擇不同頻率的輸出，其一次諧波頻率為2 . 2ghz ，輸出功率為1 . 25gw ，效率為9 . 33 ，二次諧波頻率為4 . 4ghz時，輸出功率為0 . 48gw ，效率為3 . 6 。
  14. Coursework includes color science, computer programming, engineering mathematics, data structures, color duplication, pre - press techniques, visual psychology, printing materials science, digital printing, industrial management, quality control, electronic publishing systems, and computer image processing theories and applications

    課程包括：色彩學、階調復制學、程式設計、工程數學、資料結構、彩色復制學、印前製程、視覺心理學、印刷材料學、數位印刷、產業管理、品質管制、電子出版系統、電腦影像處理原理及應用等。
  15. Using the first order and the second order derivative information of the network error function to the learning rate factor / / and the momentum factor ?, dynamic optimization of the learning rate factor / / and the momentum factor ? is obtained during the network training process, which efficiently speeds up the network learning rate

    並利用網路誤差函數對訓練速率系數和沖量系數的一階和二階導數信息，在網路訓練過程中動態優化調整訓練速率系數和沖量系數，有效地加快了網路的訓練速度。
  16. In order to simplify the calculated procedure, the error coefficient ( r1 ) has been introduced to paper. and so, the criterion formula ( 2. 1 ), which calculates strain and stress in concrete, can be replaced by one - variable formula ( 2. 17 )

    為簡化計算類設計破壞形態時粘貼加固構件的抗彎承載力，本文引入誤差調整系數_ 1 ，將規范混凝土應力?應變公式（ 2 . 1 ）簡化成一階線性公式（ 2 . 17 ）並代入計算。
  17. Abstract : a continuous type inferential control algorithm and the proof of the stability and the convergency of the inferential control system are given in this paper. the system has the performance of convergency and robustness. the algorithm which is simple and has only one adjustable parameter q and has been successfully used for the servo control of the tension of the film in the metallized film capacitor automatic winding machine and we get a satisfactory result

    文摘:給出了一種適用於工程常見的二階對象的連續型推理控制演算法，以及推理控制系統的穩定性和收斂性證明.該系統無差、穩定，且具有較好的魯棒性.該控制演算法簡單，僅有一可調參數q ，並成功地應用於薄膜電容器全自動卷繞機中作為快速張力伺服控制，取得滿意效果
  18. Dsp chips produced by ti are suitable for the 1 - bit system design. they can achieve two important parts of the system, interpolator and modulator, and finish the input and output of signals

    本文在實現一階sigma - delta調制器的基礎上，通過分析二階調制器的結構和系統函數，在dsp內實現了二階調制器，改善了噪聲整形的能力。
  19. The article firstly explains the knowledge creation process in the new product development through introducing the concept of knowledge value chain, and secondly it analyzes the relativity of organization environment and knowledge creation by virtue of structural equation model ; lastly it tries to propose the index system of knowledge creation performance and makes evaluation of performance by using the method of fuzzy comprehensive evaluation. through above study, the article provides the new management thoughts for the product development of the enterprises, which makes the enterprises form the npd organization environment in favor of knowledge creation and improves the efficiency of knowledge creation and application, and shortens the npd cycle, and lowers npd costs, and improves npd quality, and promotes the technological and knowledge innovation

    本文首先通過引入知識價值鏈的概念，解析基於并行工程思想的新產品開發四個階段中的知識創造過程，然後在以結構方程模型（ sem ）方法建模的基礎上，利用相應的lisrel軟體對調研數據進行分析，得出組織環境與知識創造相關性的若干結論，最後通過驗證性因素分析，嘗試提出新產品開發中的知識創造績效的指標體系，並運用模糊綜合評價法進行績效評估。
  20. In the paper, according to the relation between the regional economy system and traffic system the macrocosmic forecasting model of the yrd regional general traffic flow is built. the flow includes tendency traffic stream and induced traffic stream. according as the above forecasting methods and the regional traffic forecasting model the development of the yrd region economy, population and the tendency traffic flow are quantitatively forecasted by the testing data

    並根據交通系統和社會經濟系統互相影響的關系，構建了長江三角洲區域綜合交通流量宏觀預測模型（趨勢交通流和誘增交通流） ，利用上述預測方法和宏觀預測模型結合調研數據對長江三角洲區域的經濟、人口以及趨勢交通流量進行了宏觀定量預測，隨長江三角洲區域綜合交通網路體系研究后提出了區域間交通流量模擬「四階段」定量預測模型。
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