zero of stability 中文意思是什麼
zero of stability
解釋
安定度-
If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g
如果通過激光冷卻能使原子速度降至很小甚至為零，光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處，其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小，因此，如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。 -
Secondly, the mixed h2 / h control is formulated as a game problem of incomplete information, a suboptimal 2x2 non - zero game model is constructed, where two channels are chose as players and h2 and h control are pure strategies, and an algorithm for mixed h2 / h control, which is based on the nash ' s bargaining theory, is derived to achieve the nash equilibrium point. finally, handling stability, ride comfort and steering handiness are related with vehicle suspension system and electrical power steering
其次，基於對策論把h _ 2 h _混合控制問題抽象為兩個對局者信息不完全情況下的非零和博弈模型，在以次優范數值構造的2x2非零和博弈模型中把兩類通道作為參加博弈的兩方，以h _ 2和h _控制方案作為兩種純策略，基於納什談判解原理設計出求解h _ 2 h _混合控制問題納什均衡點的演算法。 -
Stability simulation of a humanoid robot with fictitious zero - moment point
的擬人機器人行走穩定性模擬 -
Global stability of zero solution of generalized li nard system
系統零解的全局漸近穩定性 -
For multi - infeed hvdc systems, when the minimum eigenvalue of the system becomes zero, the voltage stability graph can be plotted effective short circuit ratio as function of coupling impedance
對于多饋入hvdc系統，在最小特徵值為零的情況下，可以根據這種關系作出有效短路比?連接阻抗圖，即電壓穩定圖。 -
Unified power flow controller ( upfc ) is one of the most powerful and most promising controllers of facts. if we use upfc to control the transmission parameters, terminal voltage, line impedance and phase angle in normal situation and use it to compensate zero sequence and negative sequence currents when one of transmission lines is cut off, we can implement two phases operating in high voltage transmission lines, which can improve stability and reliability for the transmission system
統一潮流控制器（ upfc ）是功能最強、最具發展潛力的靈活交流輸電系統（ facts ）控制器之一，如果在常規條件下，用upfc實現輸電線路的電壓調節、移相、潮流控制、阻尼振蕩等功能，在發生單相永久性接地或單相斷路故障時，由傳統的三相跳閘改為單相跳閘，用upfc的並補來濾除兩端系統的零序和負序電流，用upfc的串補來提高輸電線的傳輸功率，以實現兩相長期運行，那麼輸電系統的穩定性、可靠性將大大提高。 -
Detailed contrastive simulation tests of four - phase and self - optimalizing abs control have been made and applying effects of self - optimalizing control are discussed, which establish stable principle foundation for self - optimalizing control applying to realistic abs controller. from the simulation results we can find that : automobiles which install self - optimalizing abs apparatus lock on the any road surface only when the vehicle body velocity and wheel velocity arrive at zero approximately, which is better for improving driving stability under braking. it shows anti - lock ability of self - optimalizing ; slip ratio approximates and surround the desired slip, which shows that this abs system uses fully road surface performance and retains large adhesion and braking performance is good ; braking force regulates with varies of road condition, which realizes road self - identification
通過模擬試驗可以看出：在各種路面上，汽車在安裝了自尋優防抱制動裝置后，在車速、輪速接近為0時才抱死，這對提高汽車制動時的操縱穩定性特別有利，顯示了自尋優避免車輪抱死的能力：滑移率的值基本上一直接近並且圍繞著與路面附著系數相對應的滑移率上下變化，說明了該系統充分利用了路面性能，基本上保持了較大的附著力制動，制動性能較好；制動力隨著路面條件的變化而相應做出調整，實現了路面自動識別的功能。 -
By choosing some appropriate exponential weight functions we prove that the essential spectra and the eigenvalues ( except the simple zero eigenvalue ) have negative real parts, thus we get the locally asymptotically exponential stability of travelling waves ( al ) and ( a2 ) in some weighted spaces
通過選用合適的權函數，我們證得在加權空間線性化運算元的本質譜和除簡單特徵值零以外的特徵值均具有負實部。因此，我們得到行波（ a1 ） ， （ a2 ）在加權的l ~ 2 （ r ）空間的局部漸近指數穩定。 -
The combustible gas detector should be of high stability and seldom producing zero - point drift during normal working. it should be able to automatically compensate zero - point drift
可燃氣體檢測器應穩定性高，正常工作時應很少產生零點漂移。應具有零點漂移自動補償功能。儀表的零點和滿量程應能夠在現場進行標定。 -
The thesis has done the widespread investigation and study to the domestic and foreign ’ s technologies of analogy low voltage and low power, and analyzes the principles of work, merts and shortcomings of these technologies, based on the absorption of these technologies, it designs a 1. 5v low power rail - to - rail cmos operational amplifier. when designing input stage, in order to enable the input common mode voltage range to achieve rail - to - rail, it does not use the traditional differential input pair, but use the nmos tube and the pmos tube parallel supplementary differential input pair to the structure, and uses the proportional current mirror technology to realize the constant transconductance of input stage. in the middle gain stage design, the current mirror load does not use the traditional standard cascode structure, but uses the low voltage, wide - swing casecode structure which is suitable to work in low voltage. when designing output stage, in order to enhance the efficiency, it uses the push - pull common source stage amplifier as the output stage, the output voltage swing basically reached rail - to - rail. the thesis changes the design of the traditional normal source based on the operational amplifier, uses the differential amplifier with current mirror load to design a normal current source. the normal current source provides the stable bias current and the bias voltage to the operational amplifier, so the stability of operational amplifier is guaranteed. the thesis uses the miller compensate technology with a adjusting zero resistance to compensate the operational amplifier
本論文對國內外的模擬低電壓低功耗技術做了廣泛的調查研究，分析了這些技術的工作原理和優缺點，在吸收這些技術成果基礎上設計了一個1 . 5v低功耗軌至軌cmos運算放大器。在設計輸入級時，為了使輸入共模電壓范圍達到軌至軌，不是採用傳統的差動輸入結構，而是採用了nmos管和pmos管並聯的互補差動輸入對結構，並採用成比例的電流鏡技術實現了輸入級跨導的恆定;在中間增益級設計中，電流鏡負載並不是採用傳統的標準共源共柵結構，而是採用了適合在低壓工作的低壓寬擺幅共源共柵結構;在輸出級設計時，為了提高效率，採用了推挽共源級放大器作為輸出級，輸出電壓擺幅基本上達到了軌至軌;本論文改變傳統基準源基於運放的設計，採用了帶電流鏡負載的差分放大器設計了一個基準電流源，給運放提供穩定的偏置電流和偏置電壓，保證了運放的穩定性;並採用了帶調零電阻的密勒補償技術對運放進行頻率補償。 -
Zero - expansion models satisfy the request of space structures for they can possess high dimensional stability in temperature - change fields. the surface morphology, electrical conductivity and spectral reflectivity of al / kapton films before and after space environment simulated tests were
對于al / kapton薄膜試驗分別採用原子力顯微鏡、四探針電阻測量儀、紫外可見分光光度計測試其空間環境試驗后的表面形貌、面電導率、光學反射率。 -
Non - affine nonlinear systems via bounded controls and kalman - yakubovitch - popov lemma of affine passive systems are stabilized. several kinds of nonlinear systems with uncertainty by using stability theory of cascaded passive systems are stabilized robustly. the relative weaker sufficient conditions of stabilizing a class of driven - driving systems by using the concept of zero - state - detectability are put forward
運用仿射無源系統的kalman - yacubovitch - popov引理，飽和鎮定非仿射非線性系統；運用聯級無源系統的穩定原理魯棒鎮定幾類不確定系統；運用零狀態可探測概念，給出了鎮定從驅動系統相對較弱的充分條件。 -
Half close - loop control ( hclc ) for time - delay and large inertia system with time - variant was proposed. the chief control object of hclc based on bounding control is to satisfy the bounding stability of the out variables, and the second control object of hclc is to satisfy zero error of the out variables. hclc for complex system just like the control process of human controllers
針對時變滯后大慣性系統提出了半閉環控制，基於有界控制的半閉環控制的控制目標首先是要滿足輸出的有界穩定，其次才是滿足輸出的無差性，是對人類控制器控制復雜系統的有效模擬。 -
The demarcation point of, which is the parameter in erf ' s yield stress equation, is 2. 0. for, the dynamic characteristics of the clutch are remarkably different from those for. thirdly, the linear stability of plane shearing flow with non zero pressure gradient is studied
論文第三部分對電流變液非零壓力梯度平板剪切流動的穩定性進行了分析，提出流場對屈服應力達到飽和的概念；並得出平板壁面剪切運動以及電流變液屈服應力的提高，都將使流動穩定性增強的結論。 -
The astringency, error and stability of the numerical method are researched. zero matrix method, constant matrix method, and jacobian matrix method are constructed in order to improve numerical precision and efficiency. the steps for calculating matrix exponential function using pade approach method are given out
研究了所提西安理工大學博士學位論文數值計算方法的誤差、穩定性、收斂性等數學性質，在計算精度和計算效率兩方面提出了一些改進措施，構造了零矩陣法、常數矩陣法、雅可比矩陣法等計算格式，給出了利川pade逼近計算矩陣指數函數的求解步驟。 -
Reactive power are calculated using the new algorithm. on the basis of analyzing different kinds of control strategies of var compensation, the paper applies the criterion of voltage and var to control switching and illustrates a improved mode of switching capacitor which can prevent the switched - capacitor from the impacting of instantaneous rush currents by means of zero - crossing triggering of scr components, and can realize auto - tracking var and auto - switching shunt capacitor bank. initial operating parameters are stored in information flash memory of the mcu using flash self - programming technique in order to decrease complexity of the circuit and improve stability
高壓智能無功補償控制器以flash型16位單片機msp430f149為控制核心，採用了一種相角實時測量的新演算法，並在此基礎上計算出了功率因數、有功和無功，減少了運算量提高了精度；在分析了各種無功補償控制策略的基礎上，以母線電壓和無功功率復合判據控制投切，並提出一種改進的電容器投切方式? ?暫態投切控制晶閘管過零觸發，避免了電容器投切時的電流沖擊；穩態運行時接觸器替代晶閘管，實現無功補償的自動跟蹤和電容器的自動投切，解決了投切時的暫態電流沖擊和穩態時可靠運行的難題；控制器的原始運行參數採用flash自編程技術，將其保存在msp430f149片內的信息flash中，簡化了硬體電路，大大提高了系統的可靠性。 -
It is well known that the absence of periodic or chaotic behavior, which guarantees complete stability, is a requirement for many applications. we call that a cnn is completely stable, if any initial condition ( except at most for a zero measure set ) bring the system to an equilibrium point
眾所周知，在cnn的各種應用中，都要求系統不能存在周期軌道以及混沌吸引子，因此保證系統的穩定性則變得十分必要。所謂cnn的穩定性是指系統除了從一測度為零的集合為初始點出發的軌線外，其它的軌線最終都趨于某個穩定的平衡點。 -
This feature reflects the physical phenomenon of breaking of waves and development of shock waves. in the fields of fulid dynamics, ( 0. 2. 1 ) is an approximation of small visvosity phenomenon. if viscosity ( or the diffusion term, two derivatives ) are added to ( 0. 2. 1 ), it can be researched in the classical way which say that the solutions become very smooth immediately even for coarse inital data because of the diffusion of viscosity. a natural idea ( method of regularity ) is obtained as follows : solutions of the viscous convection - diffusion pr oblem approachs to the solutions of ( 0. 2. 1 ) when the viscosity goes to zeros. another method is numerical method such as difference methods, finite element method, spectrum method or finite volume method etc. numerical solutions which is constructed from the numerical scheme approximate to the solutions of the hyperbolic con - ervation laws ( 0. 2. 1 ) as the discretation parameter goes to zero. the aim of these two methods is to construct approximate solutions and then to conside the stability of approximate so - lutions ( i, e. the upper bound of approximate solutions in the suitable norms, especally for that independent of the approximate parameters ). using the compactness framework ( such as bv compactness, l1 compactness and compensated compactness etc ) and the fact that the truncation is small, the approximate function consquence approch to a function which is exactly the solutions of ( 0. 2. 1 ) in some sense of definiton
當考慮粘性后，即在數學上反映為（ 0 . 1 . 1 ）中多了擴散項（二階導數項） ，即使很粗糙的初始數據，解在瞬間內變的很光滑，這由於流體的粘性擴散引起，這種對流-擴散問題可用古典的微分方程來研究。自然的想法就是當粘性趨于零時，帶粘性的對流-擴散問題的解在某意義下趨于無粘性問題（ 0 . 1 . 1 ）的解，這就是正則化方法。另一辦法從離散（數值）角度上研究僅有對流項的守恆律（ 0 . 1 . 1 ） ，如構造它的差分格式，甚至更一般的有限體積格式，有限元及譜方法等，從這些格式構造近似解（常表現為分片多項式）來逼近原守恆律的解。 -
And it designed a suitable field bus for the system supply power, long distance, multi - point, and full duplex communications. this paper adopted zero power design method to develop ultra - low consumptions monitor and control equipments, and offered technical support and guarantee for stability, running reliably of the long distance multi - point monitoring and controlling system
設計了一種適合該系統要求的總線供電、長距離、多點、全雙工通訊的現場總線?增強型m - bus總線，並採用零功耗設計思想開發了一系列超低功耗的現場監測和控制設備，為長距離多點監控系統的穩定、可靠運行提供了技術支持和保證。 -
By constraining terminal sliding mode to be zero, the stability of gpc system is analyzed
分析了零終端滑模約束的廣義預測控制的穩定性。
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