modeling of ring resonators

... The advent of modern computers has had a profound effect in all branches of engineering especially in hydraulics. The recent development of numerical methods and the capabilities of modern machines ... plot of water surface in 2D simulation of Exp-1 …………….95 Figure 6.35 Carpet plot of water surface in 2D simulation of Exp-2…………… 95 Figure 6.36 Carpet plot of water surface in 2D simulation of ... plot of water surface in 2D simulation of Exp-4…………… 96 Figure 6.38 Carpet plot of water surface in 2D simulation of Exp-5…………… 97 Figure 6.39 Carpet plot of water surface in 2D simulation of...

Ngày tải lên: 06/11/2012, 10:35

Ngày tải lên: 28/08/2013, 08:31

Ngày tải lên: 05/09/2013, 09:08

Ngày tải lên: 05/09/2013, 16:11

Ngày tải lên: 14/12/2013, 12:15

... measure of goodness -of- fit. When the third item suggests that the model is an unlikely match to the data, then items (i) and (ii) are probably worthless. Unfortunately, many practitioners of parameter ... RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43108-5) Copyright (C) 1988-1992 by Cambridge University Press.Programs Copyright (C) 1988-1992 by Numerical Recipes Software. Permission ... based on? The answer to these questions takes us into the subject of maximum likelihood estimators. Given a particular data set of x i ’s and y i ’s, we have the intuitive feeling that some parameter...

Ngày tải lên: 15/12/2013, 04:15

... distribution is often rather poorly realized, if it is realized at all. We are often taught, rather casually, that, on average, measurements will fall within ±σ of the true value 68 percent of the time, ... time, within ±2σ 95 percent of the time, and within ±3σ 99.7 percent of the time. Extending this, one would expect a measurement to be off by ±20σ only one time out of 2 × 10 88 .Weall know that ... that the standard deviations σ of these normal distributionsare the same for all points. Then the probability of the data set is the product of the probabilities of each point, P ∝ N  i=1  exp  − 1 2  y i −...

Ngày tải lên: 15/12/2013, 04:15

... problem of fitting a set of N data points (x i ,y i )to a straight-line model y(x)=y(x;a, b)=a+bx (15.2.1) 666 Chapter 15. Modeling of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC ... variance of the linear combination y i − a − bx i of two random variables x i and y i , Var( y i − a − bx i )=Var( y i )+b 2 Var( x i )=σ 2 yi +b 2 σ 2 xi ≡1/w i (15.3.3) The sum of the square of N ... 662 Chapter 15. Modeling of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43108-5) Copyright (C) 1988-1992...

Ngày tải lên: 15/12/2013, 04:15

... float *xx,*yy,*sx,*sy,*ww,aa,offs; float chixy(float bang) Captive function of fitexy , returns the value of (χ 2 − offs ) for the slope b=tan(bang) . Scaled data and offs are communicated via the ... variance of the linear combination y i − a − bx i of two random variables x i and y i , Var(y i − a − bx i )=Var(y i )+b 2 Var(x i )=σ 2 yi +b 2 σ 2 xi ≡1/w i (15.3.3) The sum of the square of N ... of varying b, successful numerical root-finding leads to a value of ∆a that minimizes χ 2 for the value of ∆b that gives ∆χ 2 =1.This(see Figure 15.3.1) directly gives the tangent projection of...

Ngày tải lên: 15/12/2013, 04:15

... combinations of the columns of V, with coefficients obtained by forming dot products of the columns 672 Chapter 15. Modeling of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC ... thestandard deviationsof themeasureddependentvariable. The measured values of the dependent variable do not enter the design matrix. Solution by Use of the Normal Equations The minimum of (15.4.3) occurs ... twox; pl[j]=(f2*pl[j-1]-f1*pl[j-2])/d; } } } Multidimensional Fits If you are measuring a single variable y as a functionof more than one variable —say,avector of variables x, then your basis functionswill be functionsof a vector, X 1 (x), ,X M (x).Theχ 2 merit...

Ngày tải lên: 15/12/2013, 04:15

... and alamda de- creases by a factor of 10. If a step fails alamda grows by a factor of 10. You must call this 684 Chapter 15. Modeling of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING ... even when they must be offered without proof. Figure 15.6.1 shows the conceptual scheme of an experiment that “measures” a set of parameters. There is some underlying true set of parameters a true that ... name of the game is to find some way of estimating or approximating the probability distributionof a (i) −a true without knowing a true and withouthaving available to us an infinite universe of hypothetical...

Ngày tải lên: 15/12/2013, 04:15

... even when they must be offered without proof. Figure 15.6.1 shows the conceptual scheme of an experiment that “measures” a set of parameters. There is some underlying true set of parameters a true that ... name of the game is to find some way of estimating or approximating the probability distributionof a (i) −a true without knowing a true and withouthaving available to us an infinite universe of hypothetical ... techniques, and seek to minimize the uncertainty of the result according to any desired criteria. Offered the choice between mastery of a five-foot shelf of analytical statistics books and middling...

Ngày tải lên: 15/12/2013, 04:15

... presence of noise. If the signal is known to be characterized by some number of parameters that vary only slowly, then the formalism of Kalman filtering tells how the incoming, raw measurements of the ... formal definition. Someotherkindsof robusttechniques, coming from the fields ofoptimalcontrol and filtering rather than fromthe field of mathematical statistics, are mentioned at the end of this section. Some ... example, the equality or inequality of two distributions can be estimated by the Wilcoxon test of computing the mean rank of one distribution in a combined sample of both distributions. The Kolmogorov-Smirnov...

Ngày tải lên: 15/12/2013, 04:15

Ngày tải lên: 25/01/2014, 13:20

... tRNA Arg ICG . Distances between C1¢ of C72 of the 1Æ72 pair in the acceptor stem, C1¢ of G18 forming a hydrogen bond to U55 of the T-loop and C1¢ of C31 or G39 of 31Æ39 of the anticodon stem of tRNA were compared ... the 2¢-OH group of the ribose of A76 and O2H of the a-carboxyl group of Arg. Arrows indicate the sequential transfer of the bond in the intermediate. M. Konno et al. Modeling of tRNA-assisted ... guanidium moiety of Arg-AMP can donate a proton from N e H of the cyclic form instead of the 2¢-OH group of tRNA to C@Oof the Ca–(C@O)–O–Pa moiety of Arg-AMP, the 2¢-OH group of tRNA becomes free....

Ngày tải lên: 18/02/2014, 11:20

... y0 w2 h2" alt="" 68 70 72 74 76 78 80 82 84 86 88 10 20 30 40 50 60 70 80 90 precision number of iterations complete-data estimation incomplete-data estimation

Ngày tải lên: 20/02/2014, 18:20

... sides of the ring, whereas this is not the case for GS12. We can ask whether or not the observed order of biophysical or biological potencies of GS itself and of the three ring- size analogs of GS ... behavior of Myr 2 Gro-PChoMLVstoagreaterextentthandoesGS itself [9]. DSC heating scans of MLVs composed of Myr 2 Gro- PEtn alone, or of Myr 2 Gro-PEtn containing 4 mole percent of one of the three ring- size ... Myr 2 Gro-PGro and other members of the homologous series of linear saturated PGs, see Zhang et al. [24]. The addition of 4 mol percent of one of the three GS ring- size analogs of GS studied has a relatively...

Ngày tải lên: 21/02/2014, 01:21

... Molecular modeling of the dimeric structure of LPL. Two dimeric model structures of LPL were constructed using INSIGHT II version 2000 on a Silicon Graphics workstation. The model structure of the ... the active site from the solvent. After the homology modeling, addition of hydrogen, modification of bonds, potentials of forcefield, and fixation of heavy atom, backbone, and Ca, were performed for molecular ... the DISCOVER _3 module of INSIGHT II was used at a constant temperature of 298.0 K for 5000 steps of 1.0 fs time-step. RESULTS Model structure of human LPL All model structures of dimeric human LPL...

Ngày tải lên: 21/02/2014, 15:20

... accurate modeling of R-D curves of real encoders is always challenging due to the diversity of source images and the complexity of transmission channels [82]. Therefore, a third type of R-D models, ... TRAFFIC MODELING OF SCALABLE VIDEO CODERS A Dissertation by MIN DAI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR ... the characteristics of existing video traffic. Rate-distortion (R-D) based schemes are often applied to improve and stabilize video quality; how- ever, the lack of R-D modeling of scalable coders...

Ngày tải lên: 26/02/2014, 07:20

Ngày tải lên: 07/03/2014, 02:20