能量變換效率 的英文怎麼說

中文拼音 [néngliángbiànhuànxiàolǜ]
能量變換效率 英文
effciency of energy transfer
  • 能 : 能名詞（姓氏） a surname
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 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
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 能量 : 1 [物理學] energy; amount of energy 2 （能力） capabilities; capacity; 能量不滅 conservation of e...
  • 效率 : productiveness; efficiency; productivity; workpiece ratio
  1. The result of this paper were : 1 ) the market mircrostructure of chinese stock is ' nt market maker, two - part stock can n ' t circulate and the scale of current stock is small, so, filling right effect make dividend event do n ' t diluate the price, the stock price could n ' t reach optimal price ; 2 ) the meanings of bid - ask speed in chinese has been changed, did n ' t reflect the real trade cost, only reflect the possible trade cost, contained desire of price popple, din n ' t belong absolute liquidity again ; 3 ) turnover rate is a liquidity ' s index, speculation ' s index too, which can explain one side of liquidity, but this index is defective in chinese stock market ; 4 ) martin index was decrescent when dividend event occurred, display the liquidity of stock was improved, so, the martin index is compatible index to measure chinese stock liquidity ; 5 ) stock dividend event affect the liquidity in the stock dividend day, stock dividend event can n ' t dividend event in the bulletin day ; 6 ) the quantity stock dividend and trend of stock market was significant factors that affect the liquidity

    本研究的結論是： 1 ）中國股票市場的微觀交易結構並不是採取做市商制度，且2 3的股票不能流通，流通股規模很小，存在著股票股利事件后的快速「填權」效應，使股票價格快速回升，股票股利發放事件的稀釋價格作用無法發揮，也就無法達到「最適價格」 ； 2 ）中國股市的買賣價差的含義發生了變化，不再是實際交易成本的反映，只是可能交易成本的反映，因而很大程度上代表了股價的波動意願，並不具有完全意義上的流動性含義。 3 ）就換手率而言，它既是流動性的衡量指標，也是最常用的衡量投機性的指標。換手率指標只能說明流動性的一個側面，在中國衡量流動性是有缺陷的。
  2. In order to obtain the maximum conversion efficiency we always hope the pump source is operated at the maximum level, thus to raise the input pump energy, we have to apply the galilean telescope to input the pump beam, but it will lead to the bad pump beam quality and the large output beam linewidth

    為了獲得最大轉換效率總希望使泵浦源運轉在可達到的最高水平，因此不得不採用伽利略壓縮望遠鏡輸人泵浦光以提高輸人泵浦光的能量，但是這同時使泵浦光質量變壞，使得輸出線寬變大。
  3. Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation

    低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數，我們借鑒isar的技術，通過較長時間的相干積累，在多普勒頻域上對目標進行分辨。而對于編隊目標，可分為近似剛性的多目標和非剛性的多目標，所以對于可以近似為剛體的編隊目標相對位置固定，運動方式一致，可以近似看作一個大目標，採用最小墑準則對平動相位的進行補償，但是大多數並不滿足剛體近似的編隊目標，由於目標在相干積累時間的多普勒頻率近似呈線性變化，通過對較短數據利用relax的時頻分析方法，提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間，所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨，對模擬和實測數據的大量分析結果表明此方法的有效性和可行。
  4. Z - tranformation augmented fasf algorithm proposed in the dissertation can reduce the search space of integer ambiguity effectively, improve the effiency and real - time processing ability of integer ambiguity resolution ; it is essential to analyse the reliability of integer ambiguity after it was fixed, the ratio test algorithm proposed in the dissertation can reduce the time to fix new integer ambiguity after wrong fixes are detected ; to reduce further the number of epochs required for ambiguity resolution, that the baseline length constraint information which acts as observables is used to do kalman filtering to speed up ambiguity resolution is proposed

    本文提出的z變換增強fasf演算法能有效的減小模糊值搜索空間，提高整周模糊值解算的速度和實時性；整周模糊值確定后，需要對整周模糊值的可靠性進行分析，本文提出的比率檢測演算法能有效的減少整周模糊值錯誤確定后整周模糊值二次解算所需要的時間；為了進一步減少整周模糊值解算所需的歷元數目，本文提出把基線長度先驗信息作為觀測量進行卡爾曼濾波輔助整周模糊值求解。
  5. The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter

    該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時，能拓寬零電壓開關的范圍，使變換器在較寬的負載變化范圍內都能實現軟開關。
  6. Thus the coding of a color head image actually become the coding of a color component. the experimental results show this method not only improve the coding efficient and compression ratio but also obtain satisfactory effect of the reconstructed image. at the same time, this method also enables gray head images to be converted into color head images

    這樣對彩色人頭圖象的編碼實質上就變成了對其中的一個色彩分量的編碼，實驗結果表明該方法不僅提高了編碼效率和壓縮比，也能獲得較滿意的重構圖象效果，同時還使得將灰度人頭圖象轉換成彩色人頭圖象成為可能。
  7. The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance

    通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。
  8. As an important part of fuel cell power generation system, dc / dc converter affects a lot to the volume, weight, cost, efficiency and performance of the system

    Dc / dc變換器作為燃料電池發電系統的一個重要組成部分，對整個系統的體積、重量、成本、效率和性能的影響非常大。
  9. Dual randomized modulation technique is more effective than existing simple random modulation schemes, such as random position modulation or random switching frequency modulation, in dispersing the power spectrum

    與已經存在的任何一種單隨機方案相比，雙隨機調制技術驅散諧波能量而使之具有更寬的帶寬，能更加有效地減少功率變換器系統的離散譜峰值。
  10. On the analysis of the theory of instantaneous reactive power, the paper brings forward a new harmonic detection method based on multiple frequency transform. the detection theory of positive sequence harmonic and negative sequence harmonic is respectively proved in detail. the correlative concepts are defined and the simulation validates the feasibility of this method

    本文在分析瞬時無功功率理論的基礎上，提出了一種基於倍頻旋轉變換的諧波測量方法，分別針對正序和負序分量，從理論上證明了該方法能分離出單個的諧波，給出了相關量的定義，最後通過模擬驗證了該方法的有效性。
  11. Thermodynamic methods were used to optimize gasifier, shift reaction and co2 removal, and methanol synthesis processes. polygeneration is a promising system to make the best use of thermal energy with different qualities to achieve high environmental and economic benefits

    本文以熱力學方法研究了多聯產系統的熱效率和火用損失，對氣化爐、水煤氣變換和脫碳以及甲醇合成等單元作了優化分析，指出了多聯產系統在能量利用方面的合理性，對其環境效益和經濟效益的綜合評估方法進行了初步探索。
  12. Furthermore, it is easy to use different control strategy in the digital inverter, so different pwm control can be used, in order to optimize the design of output filter and improve the output performance

    同時，在數字變換器平臺上可以方便地實現各種控制策略，達到進一步優化輸出濾波器參數、提高輸出電能質量、提高變速恆頻電源整體效率等目的。
  13. Chapter 5 describes how to design fuzzy control rulers by reverse pulse algorithm, which solves the problem of fast charging on the storage battery. this method is applied to improve the efficiency of power conversion and shorten the charging time

    第五章從蓄電池快速充電理論出發，根據馬斯定律，以電壓和溫升作為控制變量，運用反向脈沖模糊控制演算法對蓄電池快速充電進行模擬，用以提高電能轉換效率，縮短充電時間。
  14. We discussed the main characteristic parameters of seismic kinesiology and dynamics of mine engineering fracture zone, including relative amplitude, phase time of wave crest, similarity factor, principal frequency band energy, 3 - d space time gradient and coherent coefficient et al., and puts forward the processing method of 3 - d seismic characteristic parameters about denoise - smoothing, generalization, correlation analysis, characteristic transformation ; and presents the method of pattern recognition of mine engineering fracture zone

    摘要本文從時間域、頻率域、三維空間域介紹了礦山工程裂隙破碎帶主要的地震運動學、動力學屬性參數，包括相對振幅、波峰相位時間、相似系數、主頻帶能量、二維空間時間梯度和相干系數等，提出了礦山工程裂隙破碎帶三維地震屬性的去噪平滑、歸一化、相關分析、特徵變換的處理方法以及裂隙破碎帶的模式識別原理與方法，並用實例說明了該方法的應用效果。
  15. The discrete cosine transform can be implemented in a computationally efficient manner with stage i, the input signal is transformed into a corresponding signal constituted uncorrelated variables

    第一級滑動離散餘弦變換能夠以高計算效率實現，將輸入信號變換為一個由互不相關變量組成的對應信號。
  16. Afterwards, in order to decrease the contradiction between the more complex and mass remote sensing image data and relatively slow speed of information extraction, an improved sfim image fusion method is proposed. this modified algorithm is on the base of sfim fusion technique, combines ihs method and sfim method and then replaces the former mean filter by an adaptive weighted mean filter. compared with the results of several common fusion techniques through a set of simulation tests between multispectral images and panchromatic images, it is proved that the new method can get an excellent result for the aim of improving spatial resolution while preserving the spectral information of multispectral images

    論文的主要工作和成果包括：在像素層，論文研究了多傳感器數據融合理論及遙感圖像預處理的過程和步驟，歸納了多源遙感圖像像素層融合的常用演算法，並針對目前遙感數據呈海量化、復雜化這一發展趨勢同遙感信息提取的能力和效率滯后這一矛盾，在sfim演算法的基礎上，將ihs變換與sfim相結合，將原演算法中的均值濾波器改進為自適應加權均值濾波器，提出了一種改進的sfim演算法，通過對一組多光譜圖像和全色圖像的雙傳感器融合模擬對比試驗，證明了該演算法在保持原多光譜圖像光譜信息的同時，能夠有效提高融合圖像的空間分辨能力。
  17. The shifting reaction consumed energy but increased the methanol synthesis ratio and the system efficiency. the energy method was used to analyse the effect of methanol synthesis ratio on system efficiency to show the advantages of polygeneration system

    本文以能量分析的結果來說明多聯產系統效率隨甲醇合成產率（以接近平衡態的程度表示）的變化規律，指出了變換反應在能量利用和環境保護上的合理性。
  18. The test results demonstrate that this prototype has excellent comprehensive performances such as small bulk, lower weight, high efficiency, high steady precision, fast dynamic response, wide range input voltage, good output waveforms, strong over - load and short - circuit ability, and strong function with different nature load and three - phase unbalanced load

    試驗結果表明，該變流器具有體積重量小、變換效率高、靜態精度高、動態響應快、輸入電壓變化范圍寬、輸出波形質量高、過載與短路能力強、帶不同性質負載和帶三相不平衡負載的能力強等優良的綜合性能。
  19. Effciency of energy transfer

    能量變換效率
  20. Among them, phase shifted ( ps ) full bridge ( fb ) zero - voltage - switched ( zvs ) pulse - width - modulated ( pwm ) dc / dc converter has strong competitive power in big power capacity fields. but it has some limitations such as smaller load range with zvs and larger circulation energy. the ps - fb - zvs - pwm dc / dc converter with a saturable inductor utilizes saturable inductor s critical saturable current characteristic and storage energy, to enlarge load range with zvs and improve output efficiency under light load

    其中，移相控制零電壓開關脈寬調制dc / dc全橋變換器在大容量領域很有競爭力，但它具有實現零電壓開關負載范圍小，循環能量大等限制，帶飽和電感的移相控制零電壓開關全橋變換器利用飽和電感的臨界飽和電流特性及儲能，來擴大零電壓開關（ zvs ）的負載范圍，提高輕載時的輸出效率，具有非常重要的研究價值。
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