作者: Complement 時間: 2025-3-21 20:14
Linear Viscoelastic Analysis with Random Material Properties,lation functions is evaluated and the relationship between deterministic and stochastic bounds is also investigated. It is shown that deterministic bounds based on material data spread are unrealistic in the presence of random viscoelastic properties, since the do not correctly predict the limits of作者: gain631 時間: 2025-3-22 01:34 作者: 彎曲的人 時間: 2025-3-22 05:06 作者: lymphoma 時間: 2025-3-22 11:31
Conference proceedings 1991ors to the stochastic stability theory. We are indebted to the National Center for Earthquake Engineering Research (NCEER) for financial support. Most credit belongs to each of the authors whose contributions were the very basis for the undoubted success of the conference. We are grateful to the rev作者: Bmd955 時間: 2025-3-22 14:59
contributors to the stochastic stability theory. We are indebted to the National Center for Earthquake Engineering Research (NCEER) for financial support. Most credit belongs to each of the authors whose contributions were the very basis for the undoubted success of the conference. We are grateful to the rev978-3-642-84533-8978-3-642-84531-4作者: muster 時間: 2025-3-22 21:01 作者: addict 時間: 2025-3-23 01:10
C. Y. Yang,A. H-D. Cheng,R. V. Roy founding papers of the field. At this time, the systems were merely seen as black boxes. During the 1960s, they began to be considered as the result of the int978-1-4612-7124-6978-1-4612-1384-0Series ISSN 2364-6241 Series E-ISSN 2364-625X 作者: 軌道 時間: 2025-3-23 01:27 作者: Nomadic 時間: 2025-3-23 09:19
S. T. Ariaratnam,D. S. F. Tam,Wei-Chau Xieproducts not only act as antioxidants, but also denature many proteins and enzymes and can even kill bacteria, fungi, and certain parasites. Ultimately, this unique combination of chemical reactivity and biological activity results in a number of apparent health benefits, which include antioxidant a作者: agitate 時間: 2025-3-23 10:58
Haym Benaroyare such reactions are limited to a mostly aqueous environment and are often driven or even governed by enzymatic processes. At the same time, the conceptual difference between purely chemical, directly reacting oxidants and reductants on the one hand, and pro- and antioxidants, which often operate i作者: oblique 時間: 2025-3-23 15:49 作者: acheon 時間: 2025-3-23 21:29 作者: 土產(chǎn) 時間: 2025-3-24 00:52
Harry H. Hilton,John Hsu,John S. Kirbyfrastructure however, the concentrations of reduced and oxidized GSH and other thiol compounds determine the electrochemical cell potential (redox potential) and this has an indiscriminate global effect on the redox status of many cellular proteins. It is becoming increasingly recognized that the dy作者: 龍卷風(fēng) 時間: 2025-3-24 05:31
Z. K. Hou,W. D. Iwan set of basis functions within the context of Natural Actor-Critic (NAC) algorithms. Such basis functions allow more complex policies be represented, and consequently improve the performance of the resulting policies. We also present the effectiveness of the method empirically.作者: malign 時間: 2025-3-24 10:03
Takeru Igusa,Kangming Xue reward, none of them can reliably filter these to produce . (or .) policies that also maximize the finite reward to absorbing goal states. This paper also presents a detailed empirical study of R-learning, an average reward reinforcement learning method, using two empirical testbeds: a stochastic 作者: 不斷的變動 時間: 2025-3-24 12:05 作者: B-cell 時間: 2025-3-24 18:16
R. Valéry Roy,Pol D. Spanossing the apparently closest unknown state — as indicated by an optimistic policy — for further exploration.. This is joint work with Shiau Hong Lim. The research leading to these results has received funding from the European Community’s Seventh Framework Programme (FP7/2007-2013) under grant agreem作者: 指派 時間: 2025-3-24 20:58
Leslaw Sochaein and M. Sobel of 1951, initiating the use of the exponential distribution as the basic (and now most used) model for reliability, are the founding papers of the field. At this time, the systems were merely seen as black boxes. During the 1960s, they began to be considered as the result of the int作者: consent 時間: 2025-3-25 02:48
Hong Su,S. Rakheja,T. S. Sankarein and M. Sobel of 1951, initiating the use of the exponential distribution as the basic (and now most used) model for reliability, are the founding papers of the field. At this time, the systems were merely seen as black boxes. During the 1960s, they began to be considered as the result of the int作者: escalate 時間: 2025-3-25 05:04 作者: Relinquish 時間: 2025-3-25 11:31 作者: Bronchial-Tubes 時間: 2025-3-25 12:12 作者: Accolade 時間: 2025-3-25 18:05
Xiangting Zhang,Isaac Elishakoff,Ruichong Zhangent called from it is not tested. In this chapter, we propose software reliability growth models based on such components‘ characteristics. Especially, these models reflecting the different testing-environment for composed components are formulated by nonhomogeneous Poisson processes. Furthermore, u作者: 彎腰 時間: 2025-3-25 23:27
W. Q. Zhu,Y. Leich as crack growth, vibration, corrosion, wear and lubricant condition. With the measured data, the predictive maintenance policy determines the optimum threshold level at which maintenance action is performed to bring the system to a “better” condition, if not as good as new, in order to maximize s作者: strdulate 時間: 2025-3-26 04:10 作者: UNT 時間: 2025-3-26 07:01 作者: Observe 時間: 2025-3-26 09:22 作者: Optic-Disk 時間: 2025-3-26 15:41
http://image.papertrans.cn/s/image/878167.jpg作者: maverick 時間: 2025-3-26 20:44
https://doi.org/10.1007/978-3-642-84531-4Strukturdynamik; development; dynamics; nonlinear systems; paper; phase; stability; structural dynamics作者: 背景 時間: 2025-3-27 00:39 作者: 集中營 時間: 2025-3-27 01:29 作者: MOAT 時間: 2025-3-27 09:01 作者: 我怕被刺穿 時間: 2025-3-27 11:04 作者: 薄荷醇 時間: 2025-3-27 17:11
Linear Viscoelastic Analysis with Random Material Properties, properties. Separation of variable as well as integral transform correspondence principles are formulated and discussed in detail. The statistical differential equation of the moment characteristic functional is derived, but rather than solving the highly complex functional equation, solutions are 作者: abject 時間: 2025-3-27 20:57
Nonstationary Response of Linear Systems under Uncorrelated Parametric and External Excitations, uncorrelated parametric and external excitations is obtained by a simplified state-variable approach. The excitations are modeled as suddenly applied white noise processes. The solution is expressed as a sum of the solution for the external excitation alone and a correction term which accounts for 作者: Diskectomy 時間: 2025-3-27 22:49 作者: Gnrh670 時間: 2025-3-28 04:06
On Almost Sure Sample Stability of Nonlinear Ito Differential Equations,ion and study the properties of the normed vector on the surface of the unit sphere. In the 1970’s many ordinary second-order dynamical systems were generated to their exact stability regions by Kozin and his students. The recent numerical method due to Wedig is the most efficient way to determine t作者: recession 時間: 2025-3-28 09:56 作者: 膽小鬼 時間: 2025-3-28 10:30 作者: 商業(yè)上 時間: 2025-3-28 14:34
A Survey of Quantitative and Qualitative Methods of Sensitivity Analysis for Stochastic Dynamic Sysfirst part of the paper we review the quantitative methods in the time and frequency domain. We quote the definitions of output and moment sensitivity measures and we present applications for linear systems and nonlinear oscillators with stochastic coefficients under Stochastic excitations. The case作者: callous 時間: 2025-3-28 19:40
Stochastic Analysis of Nonlinear Vehicle Systems using a Generalized Discrete Harmonic Linearizationear restoring element. In this paper, this technique is generalized to obtain linear representations of both nonlinear restoring and damping elements, based on a principle of energy similarity of dynamic elements. A numerical iterative procedure is presented to computer the local linear coefficient作者: Ptosis 時間: 2025-3-28 23:35
Equivalent Nonlinearization of Nonlinear Systems to Random Excitations,bability density function for the response of a nonlinear oscillator to Gaussian white noise excitations. The method is based on the least meansquare criterion and Euler equation. It is shown that this method, which is simpler and more reasonable, generalizes Caughey’s method and gives the same resu作者: 搖擺 時間: 2025-3-29 03:06 作者: 準(zhǔn)則 時間: 2025-3-29 09:04
Stochastic Earthquake Modeling with Discretized Line Source,along a line. The line source is further discretized into point sources at equal intervals, and the times at which seismic signals are emitted from the source points are assumed to be Poisson events. The strengths of individual sources are assumed to be independent and identically distributed random作者: Accommodation 時間: 2025-3-29 14:46
Analyzing Nonstationary Random Response to Evolutionary Random Excitation by Complex Modal Method,s is illustrated through some well known examples. Based upon the time-dependent correlation function of the response, a partial spectrum is defined in order to reveal the mean cross power distribution of the response in frequency domain..By comparing the present results with those obtained by the f作者: 襲擊 時間: 2025-3-29 19:04
A Stochastic Linearization Technique Based on Minimum Mean Square Deviation of Potential Energies,inal nonlinear system, and that of the equivalent linear one, be minimal. The accuracy of this version of stochastic linearization is checked by comparing the approximations resulting from the use of stochastic linearization method with some exact solutions available in the literature.作者: 緊張過度 時間: 2025-3-29 20:02
A Stochastic Theory of Cumulative Fatigue Damage,is of Stratonovich — Khasminskii theorem. The analytical solutions for the probability densities of the cumulative fatigue damage and fatigue life and for the reliability function are given for steel and reinforced concrete components with constant fatigue strength subject to narrow band stationary 作者: Oafishness 時間: 2025-3-30 00:51
Wide-Band Response of Multiple Subsystems with High Modal Density,e closed-form analytical expressions describing the dynamic effect of the multiple subsystems. These expressions, as well as the analysis approach, are novel and provide new understanding of coupled subsystems.作者: 軌道 時間: 2025-3-30 04:25
On Almost Sure Sample Stability of Nonlinear Ito Differential Equations,to equations. In this paper we shall show that there is a class of homogeneous non-linear oscillators that can be transformed on the unit sphere and the exact stability regions can be determined. Two simple examples will be presented.作者: TAIN 時間: 2025-3-30 09:15 作者: Hyperplasia 時間: 2025-3-30 13:34 作者: 有權(quán)威 時間: 2025-3-30 16:50 作者: 繁殖 時間: 2025-3-30 23:48 作者: Evolve 時間: 2025-3-31 03:47 作者: Pudendal-Nerve 時間: 2025-3-31 05:20
Analyzing Nonstationary Random Response to Evolutionary Random Excitation by Complex Modal Method,requency domain approach via the evolutionary spectrum, it is found that both methods give the same time-dependent mean square response, but the Fourier Transform of the evolutionary spectrum fails to predict the correct time-dependent correlation function.作者: Sad570 時間: 2025-3-31 12:00
Random Eigenvalues and Structural Dynamic Models,ory of random variables is delineated here with the application in mind being the determination or estimation of the statistics of the eigenvalues of linear dynamical systems. Various transformation techniques are summarized and discussed in addition to simple application.作者: 注入 時間: 2025-3-31 13:34 作者: BALE 時間: 2025-3-31 18:02
Chaotic and Stochastic Dynamics for Inelastic Systems with Hysteresis and Degradation,by the well known Duffing’s equation. We then add the important engineering material behavior of hysteresis and degradation. Under a set of unique initial conditions and a harmonic steady state excitation, the response for a certain deterministic structural system is found to be stochastic.作者: 灰姑娘 時間: 2025-4-1 01:04
Conference proceedings 1991 new theoretical developments in the field. This and a companion volume, related to new practical applications, constitute the proceedings of the conference, and reflect the state of the art of the rapidly developing subject. The conference was held in Boca Raton, Florida during May 9-11, 1990 hoste
