非穩恆的 的英文怎麼說
中文拼音 [fēiwěnhéngde]
非穩恆的
英文
rheonomous- 非 : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
- 穩 : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
- 恆 : Ⅰ形容詞1 (永久; 持久) permanent; lasting 2 (平常; 經常) usual; common; constant Ⅱ名詞1 (恆心...
- 的 : 4次方是 The fourth power of 2 is direction
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And finally, with hllc and lax - friedrichs type approximate riemann solver for discretising conservative equations and a nonconservative equation, a simple accurate and fully eulerian numerical method is presented. compared with the numerical results of hll scheme, the hllc scheme has a high resolution for shock waves and avoiding the nonphysical oscillation of the hll scheme
最後用lax ? friedrichs格式及hllc格式作為通量函數對守恆一維euler型方程組進行了離散,並將數值模擬結果和saurel的hll格式模擬結果進行了比較,發現:在兩相流數值模擬過程中,相對來說hllc格式對激波的解析度最高,結果最穩定,避免了hll格式在間斷處的非物理性數值振蕩。The model - free pid control method with neuron tuning gain and the neuro - fuzzy control method for a constant cutting force metal turning process system are proposed. the former method keeps the cutting force to be constant by using the neuron to change the pid controller gain on - line. the latter method construct the fuzzy neuron controller by combing the fuzzy controller and the neuron controller
針對具有非線性和不確定性的機械加工切削過程,提出了神經元增益自整定的pid控制方法和模糊神經元非模型控制方法,前者採用神經元來在線調整pid控制器的增益,後者將模糊控制器和神經元控制器相結合構成模糊神經元控制器,這樣當對象特性隨切削深度的變化而變化時,所設計的控制器能保持切削力恆定,使系統穩定並具有滿意的動態品質。The results show that the light field is squeezed regularly, and that the collapse - and - revival of the atomic rabi oscillation appears under the detuning. when the initial squeezed light - field factor r is weak, photon bunching alternates with photon antibunching, and the detuning leads to the reduction of photon antibunching ; to the contrary, the factor r is strong, photon statistical properties are steady bunching, and the detuning makes two - mode correlation properties steady
數值計算結果表明:光場呈現出較規則的壓縮現象;失諧量使原子rabi振蕩呈現周期性崩塌與復甦現象;當r較小時,光子的聚束效應與反聚束效應交替出現,失諧量將削弱光子的反聚束效應;當r較大時,光子呈現恆定的聚束效應,失諧量增強光場兩模非經典相關的穩定性。Abstract : the stability of the nonlinear comput ation is important in numerical weather prediction. in this paper, the concept, phe n omena and mechanism of nonlinear computational instability of the nonlinear evol ution equations in numerical weather prediction are discussed. an effective schem e, the square conservation shceme, is presented
文摘:簡述了數值天氣預報問題中非線性發展方程的非線性計算不穩定性的含義、數值計算現象以及計算不穩定產生的機理,給出了克服非線性計算不穩定的一個有效方法? ?平方守恆格式。Nonlinear dynamical systems ; nonlinear waves ; diffusion ; stability ; characteristics ; nonlinear steepening, breaking and shock formation ; conservation laws ; first - order partial differential equations ; finite differences ; numerical stability ; etc
非線性動力系統;非線性波;擴散過程;穩定性;特徵值及特徵曲線;非線性陡斜,阻斷和激波的形成;守恆定律;一階偏微分方程;有限差分;數值穩定性等等。Traditional direct torque control uses two value torque regulator which makes zero voltage vector work long and make flux shape bad seriously and makes response time long when the speed of induction motor is very low or drops down quickly. in order to solve this problem the thesis puts forward a new way to use three - value torque regulator, when the motor speed is very low or drops down quickly, the contrary voltage vector is used instead of zero voltage vector and the between the stator flux and rotor flux is reduced quickly so that torque is reduced quickly and response time becomes shorter
為此,本論文提出三點式轉矩調節,這樣當電機低速運轉或給定轉速突降時,不是加零電壓矢量,而是加反方向的電壓矢量,使定子磁鏈與轉子磁鏈之間的夾角迅速減小,從而使電磁轉矩也迅速減小,大大減小了調速時間,同時磁鏈值仍然保持基本恆定,輸出比較穩定的電磁轉矩,這在電機制動過程中非常有用。Stars at this stage of their lifespan are known as " asymptotic giant branch " ( agb ) stars, and they are highly volatile
恆星在它壽命的這一時期被認稱為「漸進巨星支」 ( agb )星,並且非常的不穩定。In this thesis work, a 1 - d hydraulic transient model and a 2 - d compressible flow model with the large eddy simulation approach have been applied to analyse the hydrodynamic process of the unsteady separated flow. prototype observation data of gezhouba shiplock no. 3 has been used to verify the computational results. it has been found that two different types of flow regime - stably - varying and strongly - oscillating regimes - could occur in the radial gate tunnel
本文採取將一維非恆定流模型與二維可壓縮流一大渦模擬模型相結合的方法,分析了急變分離流的水動力學特性,並利用葛洲壩三號船閘的原型觀測資料驗證了數值模型的可靠性,發現閥門段存在平穩變化型和劇烈振蕩型兩種不同的流態,並詳細計算、分析了它們的流動特徵In this paper, we consider the stability of the positive radical steady states, which are positive solutions of of the following cauchy problem : where initial function 0 is a bounded non - negative continuous function in rn, and k ( r ) > crl for some l > - 2 and r large
本文討論了如下的柯西問題的正徑向平衡解的穩定性,其中初始函數是r ~ n中不恆為零的有界非負連續函數, k ( r ) cr ~ l ( l - 2 , r足夠大) 。這個問題的正徑向平衡解是的正解。In the end, the steel - reinforced concrete arched bridge ( chun ' an weiping bridge ), which span is 198m, is analyzed by the proposed three - dimensional nonlinear finite element method and also those gained conclusions are directly adopted in the computation. the universal stability coefficient and nonlinear buckling stability coefficient of the bridge are respectively computed, in which the dead load and the live load are assembled according to the criterion. on the other side, the regularities of creep deformation and subsidiary stress of the investigated bridge under the first - stage dead load are carefully researched
最後,將本文所提出的三維非線性分析方法及其主要研究成果直接應用於198m跨勁型骨架式鋼管混凝土拱橋「淳安威坪大橋」的分析計算中,對該橋在最不利恆載和活載組合下的一般特徵值失穩系數和非線性屈曲系數進行了對比研究,並對一期恆載長期作用下該橋的徐變變形、附加應力以及截面應力、應變重分佈規律分別進行了深入研究。2 ). the fantasticalness and testability among the sixteen personality characteristics showed no obvious differences on genders, colleges, majors and grades while gregariousness, stableness, excitation and permanence have more differences on genders, grades and majors. in addition, independence shows the most differences
第二,十六項人格特質中幻想性和實驗性在性別、學校、專業和年級上均無顯著差異,樂群性、穩定性、興奮性和有恆性在性別、年級、和專業上存在一定的顯著差異,獨立性在性別和專業上存在非常顯著的差異。Firstly, the linear method is used in analyzing the finite element model of the bridge, mainly computes the stability coefficient and instability mode of the bridge, considering the constant load, the wind load and the various disadvantage load. secondly, the nonlinear stability is computed, considering the constant load to contrast the stability coefficient of the linear method with the nonlinear stability coefficient of results taking into account the geometrical nonlinearity and the double nonlinearity
在線彈性特徵值分析中,主要計算了考慮恆載、風載、以及各種不利活載作用下的穩定安全系數以及失穩模態;在考慮非線性影響的穩定分析中,只考慮了恆載,主要是來分析對比幾何非線性、雙重非線性下的穩定安全系數與特徵值穩定安全系數的差別。However, even einstein himself could not accept that our universe is ever - changing. he therefore constructed a " steady state universe " model by introducing a bizarre term, cosmological constant, into his theory
可是,就連愛因斯坦本身也無法接受一個常變的宇宙,於是他提出了一個在非常特殊情況下才能出現的恆穩宇宙。分享友人