進化穩態 的英文怎麼說
中文拼音 [jìnhuàwěntài]
進化穩態
英文
evolutionary homeostasis-
Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping
本文的主要內容如下: 1 )對翅片管蒸發器結構特點進行分析,選取適當的微元控制體,就干、濕和霜工況下對每個微元分別進行傳熱傳質分析,基於經驗關系式確定霜的有關參數,對于霜工況下的霜生長建立模型,經適當假設,運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型,為系統模擬奠定基礎; 2 )對蒸發在大擾動下的開、停機過程,運用動態集中參數模型進行分析和計算,為更好地描述製冷系統運行的全過程奠定基礎,同時也為製冷系統實現自動控制提供一定的理論基礎; 3 )對蒸發器正常運行過程,運用動態分佈參數和參數間定量耦合的觀點來分析和計算,為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性; 4 )編寫翅片管蒸發器動態特性模擬計算程序,可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場,實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。In the next place, by studying the change of the resonant frequency of the whole system, this paper designs the circuit to track the resonant frequency of the system by cd4046 mainly. at the same time, in order to improve the efficiency and get better dynamic capability of the converter, we choose pll and fuzzy control after comparing the pll circuit, fuzzy circuit and pll ? fuzzy control circuit. in the end, this paper brings forward the control blue print to realize the drive control circuit of the high frequency converter, using the dsp chip as the key part to realize four routes of pwm drive pulses with dead band of the control system
其次,通過對整個系統諧振頻率變化的分析和研究,設計了以鎖相環cd4046為核心的鎖相環控制電路,同時,在綜合比較鎖相環控制、模糊控制以及模糊控制和鎖相環復合控制三種控制演算法的基礎上,進行了系統模擬,得出採用復合控制可使跟蹤電路既具有鎖相環路較好的穩態性能,又擁有模糊控制較好的動態性能,系統魯棒性能好,同時也提高了逆變器的效率。During the long - term evolution an integrated regulation system, which is highly conserved in eukaryotes from yeast to homo sapient, has developed to regulate copper transportation and homeostasis
在長期進化過程中真核生物形成了一套完整的銅轉運和穩態調節系統,從酵母到靈長類的各種生物都具有高度同源性的調控組件。Using the opened thermosiphon of 38x3 as experimental element and water as working fluid, the characteristics of dynamic low load boiling, stable severe boiling heat transfer coefficient and critical heat flux are gotten for the opened thermosiphon at the pressure of 0. 02 - 0. 1mpa and 0. 1 - 0. 8mpa respectively, which makes up the drawback that the opened thermisiphon has not yet accurate boiling heat transfer relationship formulas. by means of experimental results, an opened thermisiphon waste heat recovery boiler is designed for the high temperature gases that the positi e electrode copper refining furnace exhaust, which overcomes effectively the drawback of short life, little capacity and unable to inspect that the closed steel - water thermosion has
本文以工程上常用的38 3的開口封底為實驗元件,以水為工質,對開啟式熱管內的動態低負荷沸騰、穩態旺盛沸騰及臨界沸騰特性進行系統的可視化實驗研究,實驗壓力為0 . 02 0 . 8mpa ,實驗得出了38 3的開口封底管在工作壓力為0 . 02 0 . 8mpa和0 . 1 0 . 8mpa下的管內沸騰傳熱系數及臨界熱負荷計算關聯式,彌補了開口封底管? ?這一新型傳熱元件尚無準確的沸騰換熱關聯式的缺陷。The dynamic change and the stability of the generalized cobweb models such as model one are studied, including setting up the models and giving the economic meanings ; dynamic analysis on model one and proving that the price array produced by model one wo n ' t emerge above the third cycle movement and chaos ; stability analysis on model one and obtaining six theorems about the stability of equilibrium price. chapter four, analysis on some specialized cobweb models. this is the second key part of the thesis
主要研究了對形如模型( )的一般化蛛網模型的動態分析與穩定性問題,主要包括三個方面工作:一是建立模型並給出經濟含義;二是對模型進行動態分析,證明了由模型( )所生成的價格系列在一定的條件下不會出現3以上周期運動和混沌現象;三是對模型進行穩定性分析,並得到模型( )關于均衡價格穩定的六個定理。Evolution mechanism of logistic equation is studied, and is used in a kind of cobweb model. the stability and the characters are studied with the change of parameters. finally the parameters " regions in which the economic system reaches the stability and the chaos are determined
第五章:邏輯斯蒂方程在蛛網模型分析中的應用本章研究了邏輯斯蒂方程的演化機制,並將它應用在一類蛛網模型的研究中,對模型進行動態分析和穩定性分析,研究了各種參數條件下的性態,確定了經濟系統達到穩定狀態的參數范圍及進入混沌狀態的參數范圍。By study on cleaning system of assembling cleanroom, contaminating material concentration formulas in the condition of steady - state and unsteady are deduced
本文主要對裝配式潔凈室凈化空調系統的性能進行研究,推導出穩態和非穩態情況下裝配式潔凈室室內污染物質濃度的公式。This article holds this opinion that business ecosystem is a complicated and evolutional cybernetic system, the stability of. which enhances along with the complexity till one extent, after which the stability changes in the reverse direction
本文認為:商業生態系統是一個復雜、進化的控制論系統,其穩定性隨復雜性的增加而增加,但增加到一定程度后則成反向變化趨勢。A novel dynamic evolutionary clustering algorithm ( deca ) is proposed in this paper to overcome the shortcomings of fuzzy modeling method based on general clustering algorithms that fuzzy rule number should be determined beforehand. deca searches for the optimal cluster number by using the improved genetic techniques to optimize string lengths of chromosomes ; at the same time, the convergence of clustering center parameters is expedited with the help of fuzzy c - means ( fcm ) algorithm. moreover, by introducing memory function and vaccine inoculation mechanism of immune system, at the same time, deca can converge to the optimal solution rapidly and stably. the proper fuzzy rule number and exact premise parameters are obtained simultaneously when using this efficient deca to identify fuzzy models. the effectiveness of the proposed fuzzy modeling method based on deca is demonstrated by simulation examples, and the accurate non - linear fuzzy models can be obtained when the method is applied to the thermal processes
針對模糊聚類演算法不適應復雜環境的問題,提出了一種新的動態進化聚類演算法,克服了傳統模糊聚類建模演算法須事先確定規則數的缺陷.通過改進的遺傳策略來優化染色體長度,實現對聚類個數進行全局尋優;利用fcm演算法加快聚類中心參數的收斂;並引入免疫系統的記憶功能和疫苗接種機理,使演算法能快速穩定地收斂到最優解.利用這種高效的動態聚類演算法辨識模糊模型,可同時得到合適的模糊規則數和準確的前提參數,將其應用於控制過程可獲得高精度的非線性模糊模型In order to promote the optimizing configuration of commons ' resource and avoid the generation of tragedy, based on the theory of ectypal, dynamic and optimum steady strategy in limited sense, the paper establishes the dynamic game theory models and puts forward a series of solutions, and provides a powerful argumentation to the government in order to implement the strategy of city bus priority
為促進公共資源優化配置,避免公共資源悲劇的發生,以有限理性的復制動態和優化穩定策略分析為基礎理論,建立動態博弈模型並進行求解,從而提出了解決城市交通問題的辦法,為政府實行公交優先機制提供了有力論證。In this paper, based on the amplitude transport equation of fast varying field and the low frequency disturbance equation of electr on density, the evolutions of the density distribution of charged particles and the collapse of electric field have been calculated numerically in two dimensions with three field components under the condition of transverse wave
所以本文採用了ftcs有限差分格式方法,利用二維三分量軸對稱,對空間飛行體與壓縮區內等離子體非穩態相互作用過程進行數值模擬,得到了電荷密度擾動與電場的變化情況。The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed
本文對空芯動圈式直線同步電動機進行了深入細致的研究,內容包括: ( 1 )採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式(集中電流法、分佈電流法) ,同時介紹了兩種永磁電機氣隙磁場計算方法(磁荷法,直接求解拉氏方程法) ,分析各種方法的優缺點,討論電機參數對氣隙磁密的影響; ( 2 )介紹了單層同心繞組的布置方式,根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式,分析靜態力?位移特性; ( 3 )建立空芯動圈式直線永磁同步電動機動態模擬模型,模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。The results prove that : ( 1 ) when the mach number of the flow at the exit increases, the total pressure recovery decreases, and the circular steady total pressure distortion coefficient, turbulence intensity and synthesis distortion increase
研究結果表明: ( 1 )地面工作狀態下,隨著出口馬赫數的增加,蛇形進氣道出口截面的總壓恢復系數不斷下降,而穩態周向畸變指數、紊流度和綜合畸變指數均上升,穩態徑向畸變指數變化不大。On the basis of the safety system engineering theory. applying the dow fire & explosion index and the normal stability gauss mathematical diffusion model etc., combining with the practice of mouping port, the hazards during the handling and storage of liquid chemicals in bulk have been analyzed and the risks of fire explosion and leakage ( including water pollution and water pollution ) have been assessed. taking into account of insufficient consideration of the human factor in the dow fire & explosion index, the soft compensation coefficient has been raised
本文以安全系統工程為理論基礎,運用道氏火災爆炸指數法、平均運動方程組以及常穩態高斯數學擴散模型,結合牟平港散化運輸、裝卸的實際,對牟平港散化儲運的火災爆炸危險性和毒物泄漏危險性(包括水污染性和大氣污染性)進行了定性和定量的分析評價。在評價程序上,針對道氏火災爆炸指數法中對人為因素和管理水平等考慮不足的問題,提出了軟補償系數的概念,找出了散化碼頭日常監督管理工作的重點。Carryed out genetic algorithm to optimize this system to solve these two problems, and realized perfect smooth curve, instant reaction, stable function and robust function in transforming control
並採取遺傳演算法對直流伺服線性定常系統進行優化處理,從而很好地解決了這兩個問題,實現了控制傳遞中有極好的平滑曲線,瞬時響應性能,穩態性能以及魯棒性能。Abstract : this paper considers the decentralized stabilization problem via local state feedback control laws for a class of large - scale linear discrete - time systems with delay interconnections. a sufficient condition for decentralized stabilizability is derived and is expressed as a system of linear matrix inequalities. furthermore, the problem of designing a decentralized state feedback control law with smaller feedback gain parameters is formulated as a convex optimization problem, and latter can be solved by using existing efficient convex optimization techniques. the obtained controller enables the closed - loop systems to be not only stable, but also of any prescribed stability degree
文摘:用一組線性矩陣不等式給出一類線性離散時滯大系統分散能鎮定的一個充分條件,進而,通過建立和求解一個凸優化問題,提出了具有較小反饋增益參數的分散穩定化狀態反饋控制律的設計方法.所得到的控制器不僅使得閉環系統是穩定的,而且還可以使得閉環系統狀態具有給定的衰減度This software can be used in steady - state simulation, components matching, optimization and performance analysis of automobile air conditioning system
利用該軟體能對汽車空調系統進行穩態模擬、匹配和優化計算以及性能分析。An operation decision method for multi - stage pumping station system with adjustable - blade propeller pump is presented. it includes optimal water level of individual stage of pumping station and optimal operation method of every pump. the paper describes some mathematical models and decision making technique of multi - stage pumping station
本文針對大型引水工程整個系統在進入穩態運行后,在各站的抽水流量或首級站進口水位發生變化的情況下及時做出運行決策,調整各梯級站間的水位,達到整個系統總能耗最小的目的。The author investigated the influence of different informal institutions on development of engineering consultation corporation on base of evolutionary game theory, put forward evolutionarily direction of the informal institution needed by engineering consultation corporation
本文運用進化博弈論中的復制動態模型和進化穩定均衡分析了有限理性情況下,受不同非正式制度影響的工程咨詢企業的進化博弈解,揭示了工程咨詢企業非正式制度的長期演化趨勢。In this way, life span of catalytic converter assembly can be checkout in short time. a set of evaluation and test method has been put forward and the test bench has been built up. some catalyst converters on the chinese market as the sample have been tested on the bench, but many quality problems have been found
另外,本文對催化轉化器內部氣體流動的特性進行了研究,模擬結果表明本文把蜂窩結構的催化器用當量連續法建立載體的流動力學模型,並用ansys軟體對整個催化器的流場進行穩態流動數值模擬的方法是可行的。分享友人