modeling of fixed bed catalytic reactors
Hydraulic modeling of open channel flows over an arbitrary 3-d surface and its applications in amenity hydraulic engineering
Ngày tải lên :
06/11/2012, 10:35
... 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 ... surface profile analysis of open channel flows over a
circular surface. Journal of Applied Mechanics, JSCE, Vol. 8, pp 847-854, 2005.
5. Anh T. N. and Hosoda T.: Free surface profile analysis of flows...
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Tài liệu Modeling of Data part 1 pptx
Ngày tải lên :
15/12/2013, 04:15
... 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...
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Tài liệu Modeling of Data part 2 doc
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
−...
5
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Tài liệu Modeling of Data part 3 docx
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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 ... =1, ,M (15.1.7)
Equation (15.1.7) is, in general, a set of M nonlinear equations for the M unknown
a
k
. Various of the procedures described subsequently in this chapter derive from
(15.1.7) and...
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Tài liệu Modeling of Data part 4 pptx
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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...
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Tài liệu Modeling of Data part 5 doc
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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 ... vector of length M.
The equations (15.4.6) or (15.4.7) are called the normal equations of the least-
squares problem. They can be solved for the vector of parameters a by the standard
methods of...
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Tài liệu Modeling Of Data part 6 pdf
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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...
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Tài liệu Modeling Of Data part 7 pptx
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...
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Tài liệu Modeling Of Data part 8 pptx
Ngày tải lên :
15/12/2013, 04:15
... function of a single variable z ≡ [y
i
− y(x
i
)]/σ
i
.
If we now define the derivative of ρ(z) to be a function ψ(z),
ψ(z) ≡
dρ(z)
dz
(15.7.4)
then the generalization of (15.1.7) to the case of a ... on the following fact: The median c
M
of a set
of numbers c
i
is also that value which minimizes the sum of the absolute deviations
i
|c
i
− c
M
|
(Proof: Differentiate the above expression ... 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...
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Tài liệu Đề tài " The space of embedded minimal surfaces of fixed genus in a 3-manifold III; Planar domains " doc
Ngày tải lên :
14/02/2014, 17:20
... convergence of embedded minimal
surfaces of a fixed genus in a fixed 3-manifold. This is due to the next theorem
which loosely speaking asserts that any sequence of embedded minimal surfaces
of fixed ... application of Rado’s theorem; cf. the proof of theorem 1.22
in [CM4]), Σ
0,t
is itself a graph, giving the lemma.
The next lemma bounds the radius of the intrinsic tubular neighborhood
of B
2
∩ ... The fourth paper of this series will deal with how
the multi-valued graphs fit together and, in particular, prove regularity of the
set of points of large curvature – the axis of the double spiral...
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0
Tài liệu Why Has the Cost of Fixed-Wing Aircraft Risen - A Macroscopic Examination of the Trends in U.S. Military Aircraft Costs over the Past Several Decades pptx
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17/02/2014, 23:20
...
price of steel in 2004 and 2005 and the near doubling of the price of
titanium between January 2005 and April 2006.
Data and Price Trends 15
Ideally, we would next explore the sources of escalation ... Naval Air Systems Command
NGC Northrop Grumman Corporation
OPNAV Office of the Chief of Naval Operations
OSD Office of the Secretary of Defense
OSHA Occupational Safety and Health Administration
PA&E ...
Labor Rates
As described above, labor costs are a significant portion of the total
system cost. us, changes in labor rates are of importance to under-
standing the influence of the economic factors....
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Tài liệu Báo cáo khoa học: Modeling of tRNA-assisted mechanism of Arg activation based on a structure of Arg-tRNA synthetase, tRNA, and an ATP analog (ANP) ppt
Ngày tải lên :
18/02/2014, 11:20
... O
d1
of the side chain of Asn87 in the S4 strand, with
distances of 2.82 A
˚
and 2.97 A
˚
, respectively. The
plane of the base of A20 and the end plane of the
carbamoyl group of Asn87 are out of ... 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 ... formation of the hydrogen
bond between O2 of the carboxyl group of the cognate
amino acid and the 2¢-OH group of the ribose moiety
of A76 maintains the appropriate orientation of the
carboxyl group of...
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Tài liệu Báo cáo khoa học: Functional studies of active-site mutants from Drosophila melanogaster deoxyribonucleoside kinase Investigations of the putative catalytic glutamate–arginine pair and of residues responsible for substrate specificity docx
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19/02/2014, 02:20
... particular,
phosphorylation of dGuo was reduced markedly.
Structure of Dm-dNK-E52D in complex with dTTP
The structure of one of the mutants, E52D, was solved
using X-ray crystallography at a resolution of 2.5 A
˚
in
complex ... levels of phosphorylation expressed in rela-
tion to percentage dThd phosphorylation of the wild-type. Relative
phosphorylation expressed as a relation of the percentage of dThd
phosphorylation of ... quantitation of microgram quantities of protein util-
izing the principle of protein–dye binding. Anal Biochem
72, 248–254.
22 Knecht W, Bergjohann U, Gonski S, Kirschbaum B &
Loffler M (1996)...
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