推進性能 的英文怎麼說
中文拼音 [tuījìnxìngnéng]
推進性能
英文
propulsion quality-
The main contributions are as follows : ( 1 ) de ( differential evolution ) algorithm is proposed to invert the ocean acoustic parameters in shallow water in order to get faster and more accurate results than ga ( genetic algorithm ) and sa ( simulated annealing algorithm ). also a posteriori probability analysis method is applied to evaluate the uncertainty of inversion results. ( 2 ) maximum likelihood objective functions for broadband mfi are derived according to different conditions
（ 2 ）根據不同的前提條件，採用似然比的方法推導了寬帶匹配場反演的最大似然目標函數；深入地研究了寬帶匹配場處理中的相干與非相干問題；在分析參數反演的敏感性之後，提出了淺海環境參數寬帶匹配場反演的多步優化策略，並與全參數反演方法進行了性能上的模擬比較。In order to utilize the by - products produced in the process of soybean oil to develop the series products with high - tech content and high affixture, the raw material classification, substance composing, product quality, function characteristics, extraction technology, applied field, the foreground of development and existent problems, were synthesized
摘要對植物性大豆蠟研發的原料分類、物質組成、產品質量、功能特點、提取技術、應用領域、發展前景及存在的問題進行了綜合性表述，旨在綜合利用大豆油脂加工中的副產物，開發高科技含量與高附加值的系列產品，開拓新的應用領域，為國家提供新的蠟質資源，並推進到國際商品市場。Powerformer have some changes in constract with the conventional generator ， subsequently it also have some new problems in order to have an economical ， efficient ， credible development and application the structure and the philosophy of electromagnetism of powerformer will be on speaking terms changes electrical design ， magnetism design ， thermal design and structural design are have some new changes above all ， the electromagnetism parameter and the harmonic magnetomotive force of powerformer are studied in this paper first ， it mainly utilizes analytics to deduce formula of slot leakage reactance it considers three instances ， including monolayer - slot ， multilayer isometric - slot and multilayer anisometric - slot then ， the analytics and the fem are utilized to calculate slot leakage reactance of stator winding of prototype of powerformer and compare their results second ， the theory of utilitzing fem to calculate the reactance of powerformer is simply introduced ， including stable reactance ， transient and subtransient reactance specially ， the saturated influence of the stable reactance is considered then ， the results are analysed final ， it mainly introduces the influence of harmonic magnetomotive force of stator winding and analyses the harmonic magnetomotive force of stator winding then ， it mainly analyse harmonic magneto - motive force of stator winding through arranging various arrays of stator winding and observe their influence
基於上述原因，本文對powerformer的電磁參數以及定子繞組諧波磁勢進行了研究。首先是用解析法推導出powerformer定子繞組槽漏抗的計算公式，考慮了單層圓形半閉口槽、多層等半徑圓形半閉口槽和多層不等半徑圓形半閉口槽三種情況，並對powerformer樣機的定子繞組槽漏抗用解析法和有限元法進行了計算，並比較其結果；其次，簡要介紹了有限元法計算powerformer電抗參數的原理，包括穩態電抗、瞬態電抗和超瞬態電抗，對穩態電抗考慮飽和影響，對結果進行分析；最後，介紹定子繞組諧波磁勢對電機運行性能的影響並對定子繞組諧波磁勢進行了分析。然後通過對定子繞組進行不同排列來分析定子繞組諧波磁勢，看看繞組排列對諧波磁勢的影響。Propellant binders based on these materials have excellent mechanical properties and good performance.
用這些材料製成的推進粘結劑的工作性能很好，而機械性能則更為突出。Flame temperature measurements can be used as a guide in discussing energetics of a homogeneous propellant.
火焰溫度的測定可作為討論均質推進劑能量特性的指導。A fors ( floricultural document tentative ontology - based retrieval system ) has been firstly developed in china in order to validate the reusability of fom. fors was based on chinese agricultural scientific & technological document database
進而為了驗證花卉學本體模型的可用性，論文還在國內首次設計並構建了一個具有一定推理功能的花卉學文獻試驗性本體檢索系統。Using french chalk which was dried by the 120 air as the normal air model, the quality which the fabric contains particle can be test. considering the fabric ' s reusing, the author has washed the fabric in many ways and compared the washed and unwashed fabrics " purifying performance testing datas. through putting the fabric on the home air condition, the author analysed the effect to the air condition ' s runing and purifying performance
為了將高效濾料進一步推廣使用，本文通過試驗，得到過濾速度和定量對過濾材料過濾性能的影響；利用120的高溫烘乾過的滑石粉作為塵源，試驗得到該濾料的容塵量；考慮到濾料的重復使用問題，對濾料進行清洗處理，比較處理前後濾料的過濾性能測試結果，看能否對濾料進行清洗。It is generally impossible to obtain the analytic optimal guidance law for complex nonlinear guidance systems of homing missiles, and the open loop optimal guidance law is often obtained by numerical methods, which can not be used directly in practice. the neural networks are trained off - line using the optimal trajectory of the missile produced by the numerical open loop optimal guidance law, and then, the converged neural networks are used on - line as the feedback optimal guidance law in real - time. the research shows that different selections of the neural networks inputs, such as the system state variables or the rate of los ( line of sight ), may have great effect on the performances of the guidance systems for homing missiles. the robustness for several guidance laws is investigated by simulations, and the modular neural networks architectures are used to increase the approximating and generalizing abilities in the large state space. some useful conclusions are obtained by simulation results
對于復雜的非線性導彈制導系統，很難求得其解析的最優制導律，只能求得開環的數字解，不能適用於具有時變不確定性的導彈制導系統.利用神經網路的學習和推廣能力，對開環的數字最優制導律進行離線的學習，作為閉環的神經最優制導律在線應用.研究分別選擇系統狀態變量和視線角速率等不同的神經網路輸入對制導系統性能的影響，以及各種制導律的魯棒性問題，並採用模塊化神經網路結構提高神經網路的學習和推廣能力，模擬結果得到一些有益的結論This part is set up for analyzing systematically the relationship between rli and rural economic development, summarizing the influence law of rli to rural land management benefit, analyzing the innovative mechanism, institutive achievement and difficult position and gauntlet of the present rli in china so as to lay a practical foundation for the innovation design of rli. the third part from chapter 6 to chapter 8 is innovation. in this part, the binding factors, innovative objective and basically guiding ideology of present rli innovation have been analyzed first, then according to the basically theory that relations of production must be suited to productive forces and the basically demands of socialist market economic system, in the light of peasant ' s receptive level and receptive capacity, the innovative model by stages of rural land property rights has been made, finally, the relationship between family farming and farming in scale has been analyzed, the latent profit and its binding factors of present family farming have been expounded, the concrete measures of perfecting family farming institution and pushing on the farming in scale have been put forward
第六章根據制度創新理論和市場經濟理論，結合我國國情，論述了現階段我國農地制度創新的制約因素、創新的目標及基本指導原則，確定了我國農地制度創新的方式；第七章根據生產關系必須適應生產力發展水平的馬克思主義基本原理和建立社會主義市場經濟體制的要求，結合我國現代化建設分「三步」走的戰略目標及農民的接受程度和能力，認為我國未來的農地制中文摘要度不應該拘泥於某一固定模式，而應該建立在系統連貫性的動態優化組合和階段性漸進演化的基本格局之中，並構建了我國農地產權制度的階段性創新模式:第八章通過對農業生產的特點和家庭經營的優勢分析，結合發達國家農業發展的經驗，提出了家庭經營是我國21世紀農地經營的最佳組織形式的結論;論述了農業家庭經營與農地規模經營的關系，分析了現階段我國農業家庭經營的潛在收益及其實現的制約因素，進而提出了完善農業家庭經營制度和推進農地適度規模經營的具體措施。According to the different sample set, we have been on discussion, using lagrangian multiplier technique or lmt in the optimal theory, slt and function analysis ， then we get the decision function and svm with the corresponding different sample set. thirdly, for improving generalization ability, application ability and recognition speed of svm, we have used fuzzy set theory ( fst ) and rough set theory to study svm deep, and integrated them into svm, constructed fssvm ( fuzzy set svm ) and svm based on rough set theory, and extended performances of svm in the chapter 4, 5
再次，為了進一步提高支持向量機的通用性以及推廣能力、應用能力、識別速度等性能，在第四、第五兩章運用模糊集理論（ fst ）和粗糙集理論（ rst ）對支持向量機進行研究，採用優勢互補原則，先是把模糊集與支持向量機有機結合，構造出基於模糊集的支持向量機（ fssvm ） ，然後把粗糙集理論與支持向量機相互結合，進而把rst與fssvm相互結合，構造出基於rst的支持向量機。Thus, it is postulated that in the presence of mild neutropenia, whose function is inhibited by effect of insulin excess, the bacillus was able to find a port of entry, probably via micro - abrasions of the bowel mucosal lining
因此，推測可能存在中性粒細胞減少，功能被過多的胰島素抑制，芽孢桿菌可以乘虛而入，很有可能通過腸內壁粘膜微破損進入循環。Finally, the values of kinematic parameters in typical swimming are estimated for theoretical calculation and computational simulation. based on the kinematic formulation, this paper applies large - amplitude elongated body theory to propulsive performance of undulatory dorsal / median fins and establishes a set of equations for estimation of the propulsive force and the propeller efficiency. the calculations based on experimental data coincide with blake ’ s result in 1980
從波動運動的參數方程出發，本文基於大擺幅伸長體理論對背鰭/背臀鰭波動模式的推進性能進行了分析，推導推進力和推進效率的計算公式，利用實驗觀測典型運動參數對仿生對象的推進力和推進效率進行了理論估算，結果與blake的計算結果相吻合，從而驗證了所建運動學模型的有效性。Based on bionic experiments in gymnarchus niloticus and rhinecantbus aculeatus, this paper presents a parameterized description of undulatory dorsal / median fin propulsion modes. by referring to large - amplitude elongated body theory and computational fluid dynamics simulation, this paper also provides an explanation of the external morphological and kinematic phenomena that are closely related to propulsion characteristics
本文以「尼羅河魔鬼」和「鴛鴦炮彈」為仿生實驗對象，建立背鰭/背臀鰭波動推進模式的參數化描述，對與推進性能密切相關的若干形態學及運動學特徵進行研究。Finally, by practical test, experimental data obtained show that the dynamic thrust measuring system is dramatically available and successful. especially, it shows that when the impulse width is 20ms and the duty ratio is 1 : 3, the measured results are stable and reliable. hence, the system designed here can meat the test requirements of the actual applications, and the technology studied in the thesis also give a good foundation to future research work
最後，系統建成以後，通過多次調試試車、考核試車和實際型號試車的考核，試車結果表明，該系統的設計是成功的，動態推力數據穩定、可靠，可滿足發動機以20ms脈寬工作，占空比為1 : 3的情況下，進行發動機的動態推力性能指標測試，滿足實際應用的需求，為進一步進行動態推力測試技術研究奠定了良好的基礎。It shows the choice of nature. of course it is almost impossible trying to get the performance only by imitating the shape of fish
結果證明，仿金槍魚的月牙形尾鰭在推進性能上要遠好於簡單的矩形翼，由此，也反映了自然選擇的結果。The conclusion that the optimal secondary nozzle exit area generating the maximum thrust agrees well with the numerical simulation, indicating that the exit area of secondary nozzle should be optimized according to structure and flow parameters during design
表明在引射火箭設計時，應結合引射火箭的結構和流動參數對二次噴管出口面積進行優化設計，以達到最佳推力性能。On the other hand, fish have drawn people " s attention because they have abilities of navigating in high speed with long distance, agilely maneuvering in limited space and accelerating or decelerating rapidly
另一方面，魚類和海洋哺乳動物已越來越引起人們的興趣，因為它們具有良好的推進性能和操縱性能，它們能夠高速游動，並能隨意控制姿態。When the propellant was lead styphnate and nickel hydrazine nitrate, their properties of ignition and thrust were investigated under different chamber diameter and different proportion of the mixed propellant. the influence of different thruster parameters on thruster properties was calculated
研究了史蒂酚酸鉛和硝酸肼鎳在不同藥室直徑和藥劑配比下的點火和推進性能，並且計算了推力器參數對推力性能的影響。The experiment research of the energy characteristics of the solid propellant of the over - storage solid rocket motors
超期貯存發動機固體推進劑能量特性試驗研究It therefore naturally arises the question if such a performance boost does not transform rendering performance problems into memories of the past
自然而然，將提出這樣一個問題：是否這種性能的推進不能使渲染性能的問題成為歷史呢？分享友人