擬周期的 的英文怎麼說
中文拼音 [nǐzhōuqīde]
擬周期的
英文
quasi periodic-
Analytic solutions of an iterative functional equation x bx
方程特殊擬周期解的構造It is necessary to control the mechanical stimuli precisely in the studies of cardiac mechano - electrical feedback ( mef ). in the present study a ventricular pressure - clamping system has been developed, which can be applied to isolated - perfused rabbit hearts. controlled by a computer, this system not only can make the left ventricle follow a command defining the same pressure wave as that during a beating cycle under physiological condition, but also deliver mechanical stimuli with a proper waveform to the ventricle at a particular time phase. this system integrates multiple functions, including perfusing, pacing, recording of electrocardiogram and monophasic action potentials, and clamping and measuring of ventricular pressures in isolated - perfused hearts. thus, it is a distinct system for investigating the phenomena and mechanisms of cardiac mef at organ level
在心臟機械電反饋的研究中準確控制機械刺激是非常重要的.本研究室構建了一套適用於離體家兔心臟的心室壓力鉗系統.該系統通過計算機控制壓力鉗，不僅能模擬正常生理條件下左心室的壓力波形，還能在心室活動周期的特定時相、以適當波形對心室施加機械刺激.該系統集心臟灌流與起搏、表面心電圖記錄、單相動作電位記錄、心室壓力鉗制與測定等多種功能於一體，特別適用於器官水平上觀察機械電反饋現象並探討其機制Abstract : it is necessary to control the mechanical stimuli precisely in the studies of cardiac mechano - electrical feedback ( mef ). in the present study a ventricular pressure - clamping system has been developed, which can be applied to isolated - perfused rabbit hearts. controlled by a computer, this system not only can make the left ventricle follow a command defining the same pressure wave as that during a beating cycle under physiological condition, but also deliver mechanical stimuli with a proper waveform to the ventricle at a particular time phase. this system integrates multiple functions, including perfusing, pacing, recording of electrocardiogram and monophasic action potentials, and clamping and measuring of ventricular pressures in isolated - perfused hearts. thus, it is a distinct system for investigating the phenomena and mechanisms of cardiac mef at organ level
文摘:在心臟機械電反饋的研究中準確控制機械刺激是非常重要的.本研究室構建了一套適用於離體家兔心臟的心室壓力鉗系統.該系統通過計算機控制壓力鉗，不僅能模擬正常生理條件下左心室的壓力波形，還能在心室活動周期的特定時相、以適當波形對心室施加機械刺激.該系統集心臟灌流與起搏、表面心電圖記錄、單相動作電位記錄、心室壓力鉗制與測定等多種功能於一體，特別適用於器官水平上觀察機械電反饋現象並探討其機制In the first, this article introduces the knowledge of orbit designing, then this article summarizes the basic methods and principles of orbit designing. in the later, this article describes the conception of node period about orbit designing emphatically which has been advanced by the writer. at the same time, this article describes the process of the writer ' s analysing and designing the orbit of earth spying satellite particularly with the conception. in the last, this article describes the wirter ' s analysing and simulating the designing results
本文首先介紹了軌道設計的基本知識，然後總結了軌道設計的基本的方法和原則。在隨後部分重點對衛星軌道設計中交點周期的概念提出了自己的看法，同時應用此結果詳細分析和設計了對地偵察衛星的太陽同步回歸軌道，最後對此設計結果進行詳細模擬分析。2. the paper studies calendar effects of the sample, such as periodicity and long memory 。 so we use the flexible fourier form regression proves and filters the periodic components 。 and use ghp method to estimate the fractional integration d
用對數周期圖法（ gph ）檢驗和估計序列長記憶行為。最後對去周期的收益序列建立了garch和egarch模型，較理想的擬合了價格的波動。Though this departure is not obvious, the result still support the conclusion in the analysis of stellar chromospheric activity. for evolution stars, wo do n ' t, obtain significative result because the deficient samples. but the statistics analysis show the distrbution of corona activity of late type with color index and rotation period exist upper limit
演化恆星的磁冕球活動在色指數和自轉周期的分佈上都顯示出冕球磁活動存在上限的現象，並且對冕球磁活動上限的擬合表明在色指數b一v為1 . 0附近和自轉周期In order to perfect the product line ' s simulation, the paper introduces the characteristic of auto product line, defines the lifecycle of the equipment for auto line, models the failure scheduling management by discrete event simulation with several scheduling based on fifs, the priority or other policies
摘要根據自動生產線中故障調度管理的特點，提出自動生產線中設備全生命周期的概念，並運用離散事件系統模擬的方法對自動生產線中的故障調度管理建模，提出實現調度策略的方案，以完善自動生產線的模擬技術的研究。On the reducibility of linear differential equations with quasiperiodic coefficients depending on parameters
一類帶有參數的線性擬周期微分方程系統的可約化性Good results have been got from fitting temporal distribution of over 8 earthquakes in north china and the northern segment of north - south seismic belt with three kind distributions that have 25 years ' cycle
摘要用以25年為周期的三性分佈擬合華北和南北地震帶北段8級大震發生的時間分佈，發現擬合較好，因之在今後預測8級大震時可作為參考。In the course of design with cad, cae can be applied to improve design structure and capacity, reduce production ' s cost by numerical simulating of models and evaluating of production ' s capacity
在cad設計的同時，運用cae對產品的幾何模型進行數值模擬，對產品的性能和結構進行評估，從而達到改善設計結構，提高產品性能、縮短設計開發周期的目的。In this thesis we study the existence of periodic solutions and the asymptotic behavior of general time - dependent solutions for periodic reaction - diffusion equations with nonlocal boundary value conditions, the existence of periodic solutions or periodic quasisolutions and the asymptotic behavior of general time - dependent solutions for periodic reaction - diffusion systems with nonlocal boundary value conditions. the whole thesis is made up of three chapters
本文研究時間變量是周期的反應擴散方程在非局部邊值條件下周期解的存在性及其一般時變解的漸近性態；研究時間變量是周期的反應擴散方程組在非局部邊值條件下周期解或周期擬解的存在性及其一般時變解的漸近性態Because of " fixed point attractor ", " limit cycle attractor ", " tons attractor " and " strange attractor " dominating the dynamics system, present - day crustal movement presents the various dynamics states such as " stable state ( dynamic balancing state ) ", " period state ", " quasi - period state ", " chaos state " and " edge of chaos "
在」不動點吸引子」 、 「極限環吸引子」 、 「環面吸引子」和「奇異吸引子」的作用下，現今地殼運動呈現出「穩定態（動平衡態） 」 、 「周期態」 、 「擬周期態」 、 「混沌態」和「混沌邊緣態」等多種動力學狀態。Abstract : the vibration solution of a massive spring system is presented, the effective mass of a spring is derived. the approximate period of the vibration is given
文摘:給出了彈簧質量不可忽略的彈簧振子系統的振動解，導出了彈簧的有效質量的漸近級數表達式，指出振動呈擬周期性The aircraft ' s longitudinal motion short period poles and long period zeros in right plan e may make the aircraft control system be not got by only using qft. so pole and zero assignment by state feedback is needed to change this circumstances and then qft is used to get the control system. simulink results are given to prove at the system meets the requirements.
飛機縱向運動方程的短周期和長周期的右半平面可能存在零極點對問題，這對飛機控製造成不利影響，直接利用定量反饋理論不能滿足要求。本次論文首先進行短周期狀態反饋極點配置，然後利用定量反饋來解決這個問題。通過模擬分析得到滿意的結果。An approach about the no - linear whirl dynamics behavior of elastic shaft jeffcott rotor with a transverse crack, which is supported on the unsteady and no - linear oil film, is given
裂紋轉子軸剛度變化對油膜夫穩點及油膜失穩之後轉子的運動影響不大，轉子系統作擬周期運動。It presents the verification strategy used in the whole eda design flow of the chip. the simulation on module level ( inc. post - layout ) uses the software event - driven simulator, the simulation of the associated modules or whole system uses cycle - based simulator and hardware emulator, for the gate - level netlist produced by using top - down design flow, the sta tool can analyze the static timing, and more formal verification is used to ensure the correct function
本章還提出了系統在整個eda設計流程中的設計驗證策略方法：模塊級的模擬（包括布線后的模擬）全部採用事件驅動式的軟體模擬工具來驗證，各大模塊的聯合模擬及整個晶元的功能驗證（寄存器傳輸級與門級）使用基於周期的模擬工具和硬體模擬器；對于採用top - down的設計方法得到的門級網表使用專門的靜態時序分析工具來進行時序分析以及採用形式驗證來保證正確的功能。At the point of co = g > c, it is the hopf bifurcation that the rotor orbit of shaft centerline is the periodic whirl of small amplitude. the method is suitable for the multi - freedom system
數值求解系統動力學方程，在_ c處，轉子軸心軌跡為極小幅值的周期渦動，此為hopf分岔，分叉后，系統運動為擬周期運動。With this experimental system, the influence of short cycle fluctuation of the space environment on thermal control system is investigated and the method that reducing the experimental simulation time is tried and analyzed. the experimental results are used to validate the numerical emulational platform
利用該系統，本文實驗模擬了熱輻射環境的短周期波動對熱控制系統造成的影響，用壓縮周期的方法模擬了熱輻射環境長周期波動的影響並進行了分析。For examp1e, the sort arithmetic so1ves 1eve1 partition of combination 1ogic ; the computing input waveform of sensitized path makes the possib1e of conf1rm the minimum c1ock circ1e ; the cyc1e - - based method for synchronous op tajg1fyjct7 : @ + $ { 4it x sequentia1 circuits improve the speed of waveform simu1at ion
其中，編排級數法確定了組合邏輯的層次關系；通路敏化輸入波形方法決定了最小時鐘周期；基於周期的同步時序電路的模擬演算法加快了模擬的速度等。It is constructed that radial impact and rubbing dynamics differential equations of the rotor system having the nonlinear rigidity on the unsteady and non - linear oil film. the bifurcation and chaos behavior of impact and rubbing fault rotor system caused by the parameters of nonlinear rigidity, rotor rotating speed, eccentric mass is analyzed, in the numerical value analysis method. the bifurcation diagrams, maximum lyapunov exponent diagrams, poincar maps, phase plane portraits, trajectories of journal center, time - history curve, amplitude spectra diagrams of the rotor motion are used
（ 2 ）建立了具有非線性剛度的轉子系統在非穩態非線性油膜力作用下的徑向碰摩動力學微分方程，並應用含高階余項的非線性動力方程的線性化數值法研究了此類系統響應的復雜動力學行為，利用轉子響應的分岔圖、最大lyapunov指數曲線、 poincar截面映射、時域波形、相軌線、軸心軌跡、幅值譜等圖形分析了系統響應的周期運動、擬周期運動、倍周期分岔、混沌等運動形式的轉化與演變過程，重點研究了非線性剛度、轉子轉速、偏心質量等系統參數對碰摩故障轉子系統的分岔和混沌行為的影響。分享友人