active isolation 中文意思是什麼
active isolation
解釋
有效隔振-
Cryptic species have been found in a wide range of marine organisms ; with majority of them are benthic invertebrates. in contrast, marine holoplanktons are thought to have lower diversity and slow speciation due to their strong dispersal potential. this paper reviewed studies on cryptic species and speciation in marine holoplankton. based on findings in 38 studied taxa, it was concluded that : 1 ) cryptic species are pervasive in marine holoplankton, suggesting holoplankton speciation was more active than previously thought ; 2 ) current morphospecies diversity is untenable to reflect true species diversity in marine holoplankton ; 3 ) geographic isolation may facilitate cryptic speciation of marine holoplankton. however, contribution of allopatric speciation is still questionable ; 4 ) ecological speciation may be the prevailing speciation mode in marine holoplankton. cryptic speciation in marine holoplankton is paradoxical, because rapid speciation under strong gene flow is countertuitive. solution of this paradox will help us gain deep insights of marine speciation and biodivesity
隱種廣泛存在於各類海洋生物中，尤其是底棲無脊椎動物.然而，海洋終生浮游生物由於具有較強的擴散能力，往往被視為生物多樣性低、物種形成慢.本文就海洋終生浮游生物隱種與物種形成的研究作一綜述.基於研究的38個種類，結果表明: 1 ）海洋終生浮游生物普遍存在隱種，其物種形成要比想象得快; 2 ）由於引種的廣泛存在，形態種生物多樣性無法反映海洋終生浮游生物真正的物種多樣性; 3 ）地理隔離有助於海洋終生浮游生物隱種的形成，但異域物種形成的作用仍值得商榷; 4 ）生態物種形成很可能是海洋終生浮游生物物種形成的主流模式.海洋終生浮游生物強基因流下快速的物種形成有悖于生物進化常理，解決該悖論將有助於我們對海洋物種形成和生物多樣性的理解 -
( 3 ) the theory of morden optimal control is used for the controller design of the active vibration isolation system. two algorithms, instantaneous optimal control and linear quadratic gauss optimal control, have been discussed and compared. an instantaneous optimal closed - loop control algorithm in structural space is derived by using the newmark scheme
（ 3 ）應用最優控制理論設計控制器，對瞬時最優控制和線性二次型gauss （ lqg ）閉環控制方法進行研究和對比，並導出構形空間內的瞬時最優閉環控制演算法。 -
Based on the analysis of the structure and vibration of hcm - i submicro cnc ultra - precision turning machine, the mechanical model of active vibration isolation system is set up in the paper
摘要本文以hcm -型亞微米超精密車床為研究背景，在分析了機床結構與振動的基礎上，建立了機床主動隔振系統的力學模型。 -
Love is an active power in man, a power which breaks through the walls which separate man from his fellow men, which unites him with others, love makes him overcome the sence of isolation and separateness, yet it permits to be himself, to retain his integrlty
愛是活躍人心中的一種力量，它沖破人與人之間的隔閡，使我們緊緊相連；它使我們戰勝孤獨無助，卻仍使我們保持自我個性的獨立完整。 -
In this paper, according to diesel two - stage vibration isolation test - bed, the experiment investigation based on normal fuzzy active control is made
本文還針對柴油機雙層隔振模擬試驗臺架，進行了常規模糊主動控制方法的試驗研究。 -
The comparisons of passive isolation control, passive - off control, passive - on control and fuzzy semi - active control show that the roof mr isolation system is a valid and practical intelligent semi - active control system. the roof mr isolation system is quit valid in suppressing the seismic whipping effect of the top machinery building
本文比較了被動隔震控制、被動-關控制和被動-開控制和模糊半主動控制效果。研究表明：安裝屋蓋mr智能隔震系統有效的抑制了升船機頂部廠房的地震鞭梢效應，是一種有效和實用的智能半主動控制系統。 -
It is superior to passive vibration isolation system, and also to the general active - passive hybrid vibration isolation system. the functions of the weighting matrices q and r are analysed and the conclusion is obtained that instantaneous optimal control algorithm is superior to linear quadratic gauss when choosing the same weighting matrices
（ 4 ）用計算機模擬驗證了智能結構主動隔振的有效性和優越性；分析了加權矩陣對控制系統的影響並探討其選取方法；證明了在加權矩陣選取相同時，瞬時最優控制優于lqg控制。 -
Active control strategies of a floating raft isolation system for marine diesel engines
船載柴油機浮筏隔振系統的主動控制策略研究 -
Power flow and active - passive isolation of a flexible system excited by an off - center force
偏心激勵作用柔性主被動隔振系統功率流特性 -
In this thesis, the dynamic models of a specific precise instrument in spacecraft are established and an active vibration isolation system based on piezoelectric intelligent structures is constructed. theoretical analysis and numerical simulation on this system has been carried out. piezoelectric intelligent structure is applied to civil engineering. the piezoelectric intelligent control devise is used for the control of translation - torsion coupling responses of multi - story frame structure suffered from earthquake
本文還將壓電智能結構主動隔振的理論和控制方法應用到土木工程領域，利用一類壓電材料控制器對平移-扭轉耦聯的框架結構進行了主動隔震，模擬結果顯示：結構各層的平移和扭轉均得到顯著減小，表明將智能結構系統用於結構地震反應主動控制中的可能性。 -
The simulation results show that the active vibration isolation system has much better isolating performance against conventional passive isolation system in a very broad frequency range
結果表明，該主動隔振系統在整個頻段均具有很好的隔振效果。 -
Through feedback control analysis and simulation, it is proved that the mechanical model is appropriate and the scheme of active vibration isolation system is feasible and effective
通過反饋控制分析和實驗，表明：採用主動隔振可以明顯提高機床減振性能，尤其對低頻隔振效果較好。 -
Active control isolation research for a class of nonlinear chaotic vibration systems
模擬非線性混沌振動的主動隔振研究 -
Deducing the transfer function of the system, one controller is constructed and it has the wide frequencies isolation performance and zero force transfer rate. the active vibration isolation simulation is made and the results show that the two - stage isolation mounting with the controller constructed using the method mentioned in this paper has perfect isolation property and this provide new way for controller design. 4
通過對雙層隔振振動主動控制系統模型的力傳遞函數的深入研究，構造了一種具有寬帶隔振性能的理論上具有零力傳遞率的控制器，並進行了數字模擬研究，取得了理想的模擬效果，為振動主動控制控制器的設計提供了新的思路。 -
Study on isolation and purification of l - phenylalanin and l - tyrosine by active carbon
用活性碳分離純化苯丙氨酸與酪氨酸的研究 -
We choose other hardware which are needed for the system. in this article, a control system software is designed using digital pid algorithm, which realize real - time control, dynamic display, data record, parameter modulation and malfunction alert etc. a simulation to the active vibration isolation system is carried on using simulink dynamic simulation module
本文應用數字pid控制演算法設計了控制系統的軟體，實現了實時控制、動態顯示、數據記錄、參數調整以及故障報警等控制功能。應用simulink動態模擬模塊對主動隔振系統進行了模擬，應用主動控制模式實現了對各種擾動的抑制，提高了隔振系統的綜合性能指標。 -
After designing the new - type high - voltage power amplifier, the static and dynamic responses of actuators made from piezoceramic material are studied experimentally, and introduced as actuating device used in active vibration isolation system
在設計了新型的高壓功率放大器后，對壓電陶瓷作動器的靜態和動態性能進行了實驗研究，並將其作為執行機構引入主動隔振系統。 -
Considering of flexible installing of machines, which were supported by multi - mounts and disturbed by multi - excitations in engineering practice, a general dynamic model for the complex active - passive flexible isolation systems is presented. the mobility approach is extended to the analysis of the active isolation systems, and the power flow transmitted into the plate - like foundation of the systems is studied using substructure mobility synthetic technique. then the active control strategies of the power flow are discussed from the viewpoint of insertion loss, and the transmission mechanism is revealed for the flexible coupling isolation systems which comprise active elements
綜合考慮工程實際中多激勵、多支承機組的柔性安裝問題，建立了主被動復雜柔性隔振系統的統一動力學模型，將導納方法推廣到主動隔振分析中，採用子結構導納綜合法對彈性板基礎上主動隔振系統的傳遞功率流進行了分析，並從插入損失的觀點探討了功率流的主動控制策略，揭示了含有主動作動元件的柔性耦合系統的功率流傳遞機理 -
For satisfying the demand of isolating the low - frequency vibration in precision process, this thesis conducts theoretical and experimental research on an active isolation system of small vibration based on piezoceramic actuator
為了滿足精密加工隔離低頻振動信號的需要，本論文對採用壓電陶瓷製成的低頻精密主動隔振系統進行了理論、模擬和實驗研究。 -
Study on active isolation of vibration in the coupling system with flexible base
柔性基礎耦合系統的主動隔振研究
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