performance reduction 中文意思是什麼

performance reduction 解釋
特性歸化
  • performance : n. 1. 執行，實行，履行；完成；實現；償還。2. 行為，動作，行動；工作。3. 性能；特性。4. 功績；成績。5. 演奏；彈奏；演出；（馴獸等的）表演；把戲。6. 【物理學】演績。
  • reduction : n 1 縮小，減少；降級，降位；（刑罰等的）輕減；減速；減價，折扣。2 （城市、國家等的）陷落，投降，...
  1. The argos regulator is an extremely versatile flow control device for gas applications where pressure reduction is required excellent in performance and easy maintenance are beneficial

    Argos減壓閥是一非常多用途的流量控制裝置，對瓦斯氣體要求精確減壓控制與維護簡單的使用尤其具效益。
  2. " our results indicate that a modest but chronic reduction of just one hour of sleep nightly in early childhood can affect the child ' s cognitive performance at school entry, " says dominique petit, a sleep researcher and coauthor of the study

    睡眠研究專家、該研究報告的撰寫者之一多明尼克?派提特說： 「我們的研究結果表明，在幼童時期，每晚的睡眠時間哪怕只減少一個小時，長時間持續這種狀況都會影響孩子上學時的認知表現。 」
  3. Preparation and performance of cu2 - ti - pillared montmorillonite modified by so2 - 4 for selective reduction of no by propene under lean - burn condition

    改性鈦交聯蒙脫催化劑的制備與性能
  4. Expression of performance of electrochemical analyzers ; part 5 : oxidation - reduction potential or redox potential

    電化學分析儀性能的表示法.第5部分:氧化還原電勢
  5. Expression of performance of electrochemical analyzers - part 5 : oxidation - reduction potential or redox potential iec 60746 - 5 : 1992

    電化學分析儀性能表示方法.第5部分:氧化還原電勢
  6. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型，對中國古代木結構中的典型構造如：柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究： （一）通過木柱石礎靜摩擦試驗，測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反復荷載試驗和受壓試驗，測定了古建築木構件與木構件間摩擦系數，斗?抗側移剛度，斗?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
  7. Theoretical analysis and computer simulation studies show that performance comparable to that of electro - control active damping suspension systems can be achieved with the hydraulic network model which can self - adaptingly adjust the damping of suspension to realize the optimal control by virtue of response of vehicle. in chapter 5, the effects of time - variant factors in the new active damping suspension system on reduction are investigated

    第五章研究了主動阻尼系統中的時變因數對減振系統的減振效果的影響（包括路況、車速、載重阻尼油的粘度系數隨油溫變化而引起的變化，油液的彈性模量等） ，並分析了模型簡化時一些被忽略的非線性因數對系統性能的影響。
  8. Social capital may be the missing piece that separates the good or indifferent performance of a group or society, according to dr brahm prakash, director of poverty reduction and social development from the asian development bank

    現任亞洲開發銀行區域及持續發展部紓貧及社會發展科總監布拉姆普加西哲博士表示，一個社群表現優秀或平庸，分別可能在於缺乏社會資本。
  9. Tricepstrum equalization algorithm ( btea ) and super - exponential ( se ) algorithm based on block data estimation is studied, and these algorithms use hos explicitly. their performance, such as estimation variance and bias, is analyzed. a kind of sparse cross cumulant and sparse equalizer is proposed to simplify the se algorithm, and the simulating results show efficient reduction in complication

    ?研究了幾種直接使用高階統計量的演算法，包括基於數據段估計的倒三譜演算法和超指數演算法，分析了演算法的估計方差和偏差等性能；由於超指數演算法計算量較大，不利於實時均衡，利用水聲通道的稀疏性，提出了一種基於稀疏互四階累積量和稀疏權的演算法，有效降低了超指數演算法的計算量。
  10. A patch antenna with etched holes on the ground plane is also studied. the performance of the antenna at the resonant frequency is analyzed by using the fdtd method together with the pml boundary treatment. the results show that the surface waves are suppressed greatly, the bandwidth is improved and a 1 odb reduction on the sidelobe level is achieved at the 110 and 260 directions in the e plane

    全面地研究了地面腐蝕周期圓孔結構的電磁晶體貼片天線在基波頻率處的性能，用fdtd方法並結合pml邊界處理技術對該天線所取得的研究結果顯示，本文設計的地面腐蝕型電磁晶體結構抑制了貼片天線中的表面波，增加了天線的帶寬，並有效地削弱了旁瓣，使天線的e面方向圖上110和260方向的兩個旁瓣被削弱了10db 。
  11. Abstract : based on the iterative bit - filling procedure, a computationally efficient bit and power allocation algorithm is presented. the algorithm improves the conventional bit - filling algorithms by maintaining only a subset of subcarriers for computation in each iteration, which reduces the complexity without any performance degradation. moreover, a modified algorithm with even lower complexity is developed, and equal power allocation is introduced as an initial allocation to accelerate its convergence. simulation results show that the modified algorithm achieves a considerable complexity reduction while causing only a minor drop in performance

    文摘:基於迭代的比特和功率分配機制，提出了一種低復雜度的比特和功率分配演算法.與傳統的迭代分配演算法不同，該演算法在每次迭代中只需要比較幾個特定的子載波.該方法在保持傳統迭代演算法性能的前提下極大地減小了迭代分配演算法的復雜度.此外，通過選擇等功率分配方案作為初始方案加快了演算法的收斂速度，進一步降低了演算法復雜度.模擬結果表明，提出的改進演算法在基本不犧牲系統性能的前提下有效地降低了演算法復雜度
  12. It is well known that jpeg and jpeg2000 are still image compression standard with high performance at present time. so we choose them as our investigative base to compress image. my amendment in jpeg mainly includes self - adaptive huffman coding and reduction of blocking effect

    由於jpeg標準所提供的演算法還有進一步改進的可能，所以在文中將介紹如何對jpeg標準進行演算法改進，主要包括：自適應哈夫曼編碼、塊效應的消除；針對jpeg2000標準，將主要介紹jpeg2000標準核心演算法的實現以及如何用最大位平移方法實現感興趣區編解碼。
  13. In this dissertation, a full and detailed instruction of mimo - ofdm signal detection algorithms is given together with the computer simulation results. besides, the lattice theory and basis reduction are introduced in mimo - ofdm signal detection to get better performance

    文中系統而全面的介紹了目前mimo - ofdm系統主要檢測演算法，通過模擬比較了不同演算法的性能;還結合格理論和基約減對演算法進行了優化，提高了檢測性能。
  14. Designing air cleaner with good performance of noise reduction is one of the effective ways for the intake noise control

    設計消聲效果良好的空氣濾清器是控制發動機進氣噪聲的有效措施之一。
  15. Study on exchange performance of lithium ion - sieve synthesized by reduction - ammoniacal leaching residue of polymetallic nodules

    多金屬結核氨浸渣合成的鋰離子篩吸附性能研究
  16. To verify the structural correctness, a structural conflict verification method of workflow models based on graph reduction is introduced in this paper. with this method, we can figure out all structural conflicts of workflow model. to verify execution performance, we should rely on simulation and comprehensive bpi system

    為了保證工作流模型的結構正確性，本文採用了一種基於圖歸約法的工作流模型結構沖突檢測方法，該方法可以成功的檢測出工作流模型中存在的各種結構沖突;為了保證業務過程的運行性能，模擬運行過程模型，藉助業務流程綜合評價指標體系，通過分析過程模型運行結果，從而得到模型的運行性能指標。
  17. The radiation pattern of the antenna is more rotationally symmetric, and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface. in conclusion, in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic - bandgap structures. it is shown that our photonic bandgap structures can greatly improve the performance of the patch antennas

    該平面圓環結構軟表面天線是在空氣介質的皺褶圓環結構軟表面天線的基礎上改進得到，為了便於比較，我們首先研究了空氣介質的皺褶圓環結構軟表面天線，用fdtd方法並結合pml吸收邊界條件對該天線的性能進行了研究，結果表明天線的帶寬增加，天線的軸對稱性得到了很大改善， e面和h面方向圖的波束幾乎重合，天線的旁瓣和背瓣受到很大的抑制。
  18. The application of electronically controlled technology to diesel engines provides flexibility and effectiveness in reduction of emission, noises and improvement of engine performances, saving energy, etc. in order to improve the all - round performance of diesel engine, a research on the integration of electronically controlled fuel injection and inhale - exhaust system of diesel engine is done by our research group

    柴油機採用電控技術后為控制排放、節約能源、降低噪聲、改善性能提供了靈活而有效的手段。為了實現柴油機全電子控制，課題組對柴油機燃油和配氣系統的綜合電控技術進行了研究。本文的主要工作為：在中壓共軌電控燃油系統上實現預噴射。
  19. Several strategies are shown in this thesis to minimize the torque ripple and achieve the performance. these strategies include dtc control of srm and a fuzzy - logic - based torque ripple reduction method for switched reluctance motors using a turn - off angle compensator approach. simulations show that these strategies can reduce the torque ripple

    本文介紹了能夠消除srm的轉矩脈動，提高srd性能的幾種新型控制策略，即srm的直接轉矩控制、基於模糊邏輯的關斷角_ （ off ）的優化控制，並進行了模擬。
  20. Experimental results demonstrate that kpca is not only good at dimensional reduction, but available to get better performance than conventional pca, of which the correct recognition rate is up to 92. 5 %

    實驗結果表明，核主成分分析不僅實現了降維，而且能取得比傳統主成分分析更好的識別性能，正確識別率為92 . 5 % 。
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