助推性能 的英文怎麼說
中文拼音 [zhùtuīxìngnéng]
助推性能
英文
boost characteristics-
This paper introduces the fundamental and characteristic of the fuel cell, analyzes the necessity and detail scheme of adding assistant energy sources to the fuel cell power generation system. considering for the special demand of the fuel cell power generation system, this paper gives out a push pull forward converter ( ppfc ) with passive and lossless dual cdd snubber circuit
本文首先闡述了燃料電池的基本原理和性能特點，分析了在燃料電池發電系統中引入輔助能源系統的必要性及具體的配置方案，然後針對燃料電池發電系統對dc / dc變換器設計的特殊要求，提出了一種加雙cdd無源無損緩沖電路的推挽正激變換器（ pushpullforwardconverter ， ppfc ） 。The present work is to develop a new high performance single component waterproofing construction putty powder with cement fly asb quartz powder cmc and pp fiber as its main constitutes. its result can be a basis to popularize cement putty and a reference to establish national criterion. firstly, the influence of some major materials on the basic performances of putty was studied, and find the major constitutes and mix proportion, simultaneity, the principle to select element is cheap unpolluted and comprehensive
為了提高建築工程的裝修質量以及適應我國當前建築事業的發展要求，本文選用水泥、粉煤灰、石英粉等常用建材並摻入適量纖維素、聚丙烯纖維及助劑配製出一種高性能單組分且具防水性的新型水泥基膩子，成本低廉且符合環保要求，其成果可作為推廣水泥基膩子產品應用的依據，並對國家外墻膩子行業標準的制定提供參考。As we have introduced a multilevel decision method with discriminator detection to improve the error rate performance, the deducing and analyzing for this method are present in this article. the theoretical error rate and the monte carlo simulation result are showed in figure to compare the system error rate performance affected by different premodulation filter
在系統誤碼模擬中引入了一種有助於改善誤碼性能的鑒頻加多電平判決的解調方法，文中對此方法也進行了詳細的推導和分析，並給出根據此方法計算出的誤碼理論值，結合系統誤碼性能的蒙特卡羅模擬值，對比分析各種預調濾波器對系統誤碼性能的影響。Focusing on the performance evaluating and the design of tripropellant injector, adopting the cold test rig with background pressure supply, malvem particle analyzer, ccd photography system, tripropellant hot test - bed, numerical simulation software and auxiliary theoretical a nalysis, the d ischarge c haracteristic a s w ell a s a tomization p erformance o f the injector and the combustion performance as well as the mode - transition characteristic of thrust chamber are studied detailedly based on the 3 different structures of coaxial tripropellant injector, large numbers of important conclusions are gained
本文圍繞三組元噴嘴的性能評定及設計方法。採用反壓冷試臺、馬爾文測粒儀、 ccd高速攝影系統、三組元發動機熱態試驗臺、數值模擬程序及輔助理論分析等多種技術手段和研究方法，對三種結構的同軸式三組元噴嘴深入進行了噴嘴流量特性和霧化特性、推力室燃燒性能和轉工況性能研究，得到了大量重要結果。( 2 ) directx 9 game technology that microsoft researched is applied to this simulation system. accordingly, 3 - d simulation with high fidelity is developed. it is completely driven by experiment data
（ 2 ）將微軟最新推出的directx9游戲技術運用於該模擬系統，開發出了高逼真性的三維模擬系統，該三維模擬系統完全由模擬試驗數據驅動，同時可以使用戶從不同角度不同位置觀看場景，有助於對作戰性能進行全面的評估。Section 4 researches on pilot symbol aided space - time 2d rake receiver in rayleigh fading channel. two kinds of 2d - rake receivers are proposed, one is the interference zeros force 2d - rake receiver ( zf - 2drake ). simulation results reveal zf - 2drake has the better performance than the conventional 2d - rake receiver
研究了rayleigh通道下2種導頻輔助的空時2d - rake接收機結構:干擾置零2d - rake接收機（ zf - 2drake ）和基於空時通道估計的時空級聯2d - rake接收機（ spce - 2drake ） ，推導了它們的誤碼率性能。In this paper, we derive predictive models of system and auxiliary system from double constant alterations respectively. the controller based on d - step ahead predictor can locate the closed loop poles at desired positions, whose parameters are adjusted by estimations of plant parameters that are separately estimated. an auxiliary estimator is developed to avoid ill - condition in solving diophantine equation. simulations show that these control systems have better dynamic responses under existence of measurable disturbance
引入雙恆等變換推導出系統及輔助系統的的d步預測模型，基於估計器的自校正控制器能將閉環極點配置在所希望的位置，它的參數是由與其相互獨立的對象參數調節.提出使用輔助估計器克服丟番方程的病態問題.模擬表明在存在可測干擾的情況下該系統具有良好的動態性能Abstract : in this paper, we derive predictive models of system and auxiliary system from double constant alterations respectively. the controller based on d - step ahead predictor can locate the closed loop poles at desired positions, whose parameters are adjusted by estimations of plant parameters that are separately estimated. an auxiliary estimator is developed to avoid ill - condition in solving diophantine equation. simulations show that these control systems have better dynamic responses under existence of measurable disturbance
文摘:引入雙恆等變換推導出系統及輔助系統的的d步預測模型，基於估計器的自校正控制器能將閉環極點配置在所希望的位置，它的參數是由與其相互獨立的對象參數調節.提出使用輔助估計器克服丟番方程的病態問題.模擬表明在存在可測干擾的情況下該系統具有良好的動態性能It also builds the mathematic model of all section of vscf ac exited wind power generation system on a - b - b and d - q coordinate system by the coordinate commutation technology. the thesis gives the characteristics of torque, active power, reactive power and the steady - state analysis of it. it proves that the capability of wind generator is determined to slip, the amplitude and phase of rotor voltage, the phase dispatch between stator voltage and rotor voltage
並分析了交流勵磁風力發電機作變速恆頻運行時的工作原理，闡述了與同步發電機、異步發電機的不同之處，分析了其能量平衡關系，在坐標變換技術的幫助下，詳細推導了交流勵磁發電機在a - b - c坐標系和d - q坐標系下的數學模型，分析並模擬了其有功和無功特性、轉矩和功率調節特性、穩態運行和機械特性，證明了發電機的性能由轉差率、轉子電壓的相位和幅值、定轉子電壓相位差所決定的。For example, frp reinforced concrete is used to support or surround magnetic resonance imaging ( mri ) medical equipment, and frp is also used for the constructions of some seawalls, industrial roof decks, base pads for electrical and reactor equipment, anchor in rock and ground engineering and concrete floor slabs in aggressive chemical environments in order to promote the wide usage of frp and frp reinforced concrete structures, financed cooperatively by nationa l natural science foundation ( item : the research on mechanical performance of frp reinforced concrete beam reinforced ; number : 59978046 ) and henan illustrious youth science foundation, connected with the analysis methods of modern steel reinforced concrete structure, the thesis further studies the flexural performance of frp reinforced concrete beam through the systematic study on experimental data got from this kind of beams, systematically establishes the theoretical calculating system of the flexural performance of frp reinforced concrete beam in cooperation with the up - to - date analytical methods for reinforced concrete, which suits the properties of frp
例如，纖維增強塑料筋應用於支撐和圍繞磁共振成像醫療設備的混凝土中及海堤、工業頂棚、電設備、反應設備的基座、巖土工程中的錨桿、侵蝕性環境的混凝土結構等海洋工程、橋梁工程、路面工程、巖土工程、醫療及化工工程的建設。為了推動纖維增強塑料筋及其混凝土結構在工程中的廣泛應用，本文在國家自然科學基金（項目名稱：纖維增強塑料筋混凝土梁力學性能的研究；編號： 59978046 ）和河南省傑出青年基金的資助下，通過對纖維增強塑料筋混凝土梁正截面受彎性能試驗數據的系統分析，結合現代鋼筋混凝土結構學的分析方法，對纖維增強塑料筋混凝土梁正截面受彎性能進行了深入的研究，較系統的建立了適合於纖維增強塑料筋特點的纖維增強塑料筋混凝土梁正截面受彎性能的理論計算體系。Carrying through the simulation experiment on system model by the technology of data collecting and statistics analysing, imitating the running process of the system, observing the system state variableness dynamic regulation with the time change, estimating the reality parameter of the system and measuring the system performance, which will provide evidence for assistant decision
利用數據採集處理和統計分析技術，對該模型進行模擬實驗，以模仿系統的運行過程，觀察系統狀態變量隨時間變化的動態規律性，並據此推斷和估計系統的真實參數和性能測度，為輔助決策提供依據。The controllers have considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system, which include the parametric uncertainties brought by the changes of the mobile mass, frictional coefficient, the thrust fluctuations aroused by the varieties of the magnetic density distributions and the time harmonic. the h state feedback controller restrains disturbances and uncertainties to keep the robust and stable performance. the ip controller, which has the ability of rapid response, is applied to satisfy the rapid performance
在分析雙環控制問題時，針對直線永磁同步電動機，仔細考慮了能使伺服系統性能變壞的各種細微因素，如：永磁同步直線電機動子質量變化、摩擦系數變化等造成的模型參數不確定性，電機運行期間存在磁密分佈變化、時間諧波等產生的推力擾動等，採用了ip速度控制器和h _狀態反饋控制器相結合構成直線伺服的內環控制器，並輔助設計了外環的pi位置控制器。According to a real ac vf asynchronous dynomometer system, first step, the paper deducts the mathematic model of the system, and analyzes the system stability on the basis of the ? irst method ? of lyapunov stability, then draws the eigenvalues of the system under the situation of the variation of different parameters, and results in finding the changing regularity of the system stability caused by varitation of variant system parameter ; secondly, sets up a system simulation model in terms of a real power feedback ac vf asynchronous dynomometer system, and emulates different running states of the system, not only analyzes methods of adjusting parameters to improve the working performance in the field of weak flux of the system, but also proves the effectiveness of the methods via simulation ; at last, compares the simulation results of the model with the experiment results of the real system, and show the nearly correctness of simulation system, and also confirms the practical usage of the simulation system as an effectively assistant tool in the process of developing and design a real dynomometer system
首先根據實際系統工作原理推導出系統的數學模型，在系統數學模型的基礎上依據李雅普諾夫穩定性判別第一法進行了系統穩定性分析，繪制了系統不同參數變化時的系統特徵值變化圖，從而得到系統部分參數變化對系統穩定性的影響規律，為實際系統的參數設計提供了參考；然後又以系統數學模型為基礎，依據實際的電封閉交流變頻異步測功機系統建立系統模擬模型，模擬不同工況下系統運行情況，分析了改善弱磁區系統性能的某些系統參數調節方法，通過模擬證明了此類方法的有效性；最後將系統模型與實際系統的實驗結果進行了比較，驗證了模擬系統模型的基本正確性，也肯定了這一模擬系統在實際測功機系統設計中作為輔助工具的實用性。On the study of propulsion system optimization algorithm, first, the engine performance optimization problems are converted into one typical type of nonlinear optimization problem. then, these problems are solved with model assisted pattern search ( maps ) algorithm
在研究推進系統性能優化問題時，首先將發動機性能優化問題轉化為一類典型非線性優化問題，然後利用模型輔助模式搜索（ modelassistedpatternsearch ）方法進行求解。We focus on the development of mould release agents at the beginning, and now has extended product range to many other high - end segments of the relevant industries to provide customers from different industries with high - performance, high - quality raw & auxiliary materials, processing aids, tools and equipment, etc
公司最早以開發，推廣脫模劑產品為基礎，現已將產品領域逐漸擴大至相關行業的其他高端產品，為客戶提供高性能，高品質的原輔材料，加工助劑，工具及設備等。Super instruments provides advanced monitoring tools, testing tools and analysis tools, which help with implementing reliable and high - performance networks, for public carriers, inter - exchange carriers, wireless operators, internet service providers, multiple service operators, and utilities
華儀盛科為有線運營商、長途運營商、無線運營商、網際網路業務供應商、多業務運營商和公用業務供應商提供先進的監測工具、測試工具和分析工具，幫助其推出可靠且高性能的網路。Learning user ' s interest, providing individual service, recommending items that user may needs, and help them to locate their need easily and accurately etc, all can be considered as the representation of sound relation with users
而建立與客戶的良好關系可以表現為了解用戶偏好、向客戶提供個性化的服務、推薦它們感興趣的商品、幫助他們能夠便捷地找到所需商品等方面。Basic performances of ptfe dispersion resins, auxiliaries used in moulding processingare are introduced ; primary principles, methods and devices for push processing and extrusion processing are reviewed
摘要介紹了聚四氟乙烯分散樹脂的基本性能，加工成型的助擠劑；敘述了推壓成型加工和壓延成型加工的基本原理、方法、工藝及設備。As the term in the deducing of linear stability equation is more than thousands, artificial intelligence need to be used in assisting us to overcome the difficulty of complexity
對于線性穩定性理論，由於推導的動量方程和能量方程的總項數達到上千項，必須嘗試使用人工智慧推理來幫助推導線性穩定性方程，以便避免理論推導的復雜性和源程序編譯的困難。It will emphasize the cultural communication and build a cultural trade platform to send chaoyang cultural products into the world ; it will establish more and more cultural contacts by international cultural events, exhibition, competition, observation and visit, academic discussion, annual conference, publications and internet and so on ; it will try to find out more folk cultural resources and make full use of them, then present an excellent brand of culture and keep putting chinese outstanding cultural products into the world
將進一步擴展與世界各國和地區的文化往來，加強文化溝通，並積極搭建文化貿易平臺，把朝陽區文化創意產業發展成果推向世界；將藉助各種國際性大型文化活動、展會展覽、競技賽事、考察互訪和學術研討等形式以及相關出版物、年會、網路等平臺，與世界建立更加廣泛的文化聯系；將積極挖掘我國豐富的民間文化資源，加大文化資源的整合、開發和利用，打造並推廣能夠走得出去的「文化品牌」項目，努力把中華民族優秀文化成果不斷地推向世界。分享友人