definitions and methods of preparation
Statistical Methods of Valuation and Risk Assessment: Empirical Analysis of Equity Markets and Hedge Fund Strategies
Ngày tải lên :
16/04/2013, 20:00
... market
indices using standard methods as well as the most recent state -of- the-art methods. The
analysis of the risk measures calculated by Riskometer on September 24, 2003 and January 9,
2004 and the corresponding ... concept of concordance and
discordance which informally says that a pair of random variables are concordant if large
values of one tend to be associated with large values of the other and small ... V., and N. Naik (2000), Generalised Style Analysis of Hedge Funds, Journal of
Asset Management, 1, 1, 93-109.
Agarwal V., and N. Naik (2000b), On Benchmarking of Hedge Funds with Passive and
Option-based...
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Tài liệu Independent Component Analysis - Chapter 14: Overview and Comparison of Basic ICA Methods pptx
Ngày tải lên :
23/12/2013, 07:19
... analysis.
274
OVERVIEW AND COMPARISON OF BASIC ICA METHODS
methods. In some cases, however, the algorithm and the estimation principle may be
difficult to separate.
The properties of the ICA method depend on both of ... Comparison of, say, the traces of the asymptotic variances of
two estimators enables direct comparison of the accuracy of two estimators. One can
solve analytically for the asymptotic variance of
b
b
, ... variance of the first component of
^
q
,
denoted by
^
q
1
, is of a smaller order than the variance of the vector of other components, denoted
by
^
q
1
. Excluding the first component in (A.1), and...
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Tài liệu Báo cáo " Preparation and characteristics of LiF:Mg,Cu,Na,Si thermoluminescent material " pptx
Ngày tải lên :
13/02/2014, 04:20
... somewhat expand.
The dosimetric properties of the powder were studied. In the TL glow curve of LiF:Mg,Cu,Na,Si
powder the main dosimetric peak appeared in the range of 227-247
o
C and the ratio of the ... powder were
studied. The main dosimetric peak of LiF:Mg,Cu,Na,Si appeared in the range of 227− 247
o
C and
the ratio of the height of the main peak to that of the other small peaks in the LiF:Mg,Cu,Na,Si
is ... with rate of 4 l/min. After annealing treatment, the samples were washed with HCl solution.
VNU Journal of Science, Mathematics - Physics 23 (2007) 225-231
Preparation and characteristics of LiF:Mg,Cu,Na,Si
thermoluminescent...
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Tài liệu Báo cáo "Preparation and characterization of nanocomposite TiO2/SnO2 films " pdf
Ngày tải lên :
13/02/2014, 04:20
...
concentration of the SnCl
4
solution, and the films were annealed at different temperatures and for
different period of time.
Photoconductivity measurement
In order to evaluate properties of obtained ... (R
D
) and the light resistance (R
L
) under the irradiation of 7W Hg lamp at
the distance of 10cm were measured. The calculated ratio of R
D
/R
L
was considered as a
photoconductivity of obtained ... results of measurements show that all values R
L,
R
D,
and
R
D
/R
L
strongly depend on the temperature and time of annealing as presented in Fig. 4.
P.V. Nho, T.K. Cuong / VNU Journal of Science,...
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Handbook of Public Policy Analysis Theory, Politics, and Methods pptx
Ngày tải lên :
06/03/2014, 06:21
...
(BBT), University of Twente, Netherlands. He is chair of Policy and Knowledge and editor-in-chief
of Beleidswetenschap. His key research interests are in methods of policy analysis and science/policy ... assessments’ social and normative
implications. David Laws and John Forester turn to the uses of dispute mediation and describe the
practice and process of mediated negotiation in a world of plural perspectives ... professor of policy science at the Department of Political Science at the University
of Amsterdam. He is also Director of the Amsterdam School for Social Science Research, and
co- director of...
- 670
- 1.4K
- 3
A SYSTEM OF LOGIC, RATIOCINATIVE AND INDUCTIVE, BEING A CONNECTED VIEW OF THE PRINCIPLES OF EVIDENCE, AND THE METHODS OF SCIENTIFIC INVESTIGATION pdf
Ngày tải lên :
06/03/2014, 13:20
... Syllogism.
Chapter III. Of The Functions And Logical Value Of The Syllogism.
Chapter IV. Of Trains Of Reasoning, And Deductive Sciences.
Chapter V. Of Demonstration, And Necessary Truths. ... names of Sophroniscus, not indeed of him alone, but of him and
each of an indefinite number of other human beings. Each of these names is applied to
Sophroniscus for a different reason, and by ... definition of chemistry; and the definition of the science of
life and organization is still a matter of dispute. So long as the sciences are imperfect,
the definitions must partake of their...
- 1K
- 548
- 0
Báo cáo " Preparation of nano-structural MnO2 in ethanol-water media coated on calcinated laterite and study of its arsenic adsorption capacity " docx
Ngày tải lên :
14/03/2014, 10:20
... caused by changing of
property and structure of solution. The
changing property of solution may include
firstly dielectric coefficient and surface tensity.
The changing structure of solution was ...
competition of hydration and solvation and for
long chain molecule solvent, there appeared
net-like of solvent molecules in water solution;
that hampered molecules and ions association
and crystals ...
VNU Journal of Science, Natural Sciences and Technology 24 (2008) 227-232
227
Preparation of nano-structural MnO
2
in ethanol-water
media coated on calcinated laterite and study
of its arsenic...
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Preparation and photoluminescence of high density siox nanowires with fe3o4 nanoparticles catalyst
Ngày tải lên :
16/03/2014, 15:11
... catalyst.
The lengths of SiOx nanowires are in the range of several tens to hundreds of micrometers, and the diameters
of nanowires are 20–80 nm. Transmission electron microscopy and high-resolution ... Preparation and photoluminescence of high density SiOx nanowires with Fe
3
O
4
nanoparticles catalyst
X.J. Wang
a,
⁎
, B. Dong
b
, Z. Zhou
a
a
School of Electronics Engineering and Computer ... Since
the majority of silicon oxide nanowires fabrication methods are
catalyst-based methods, different kinds of catalysts have been used,
such as Au, Pd–Au, Fe, Ga, Ga–In, Ni, In–Ni, Sn, and Co [2,3,7].
Magnetite...
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preparation and characterization of cnts tio2 composites
Ngày tải lên :
20/03/2014, 13:06
... such as C–O, C=O and O – C=O which might stimulate formation of the composites, and
enhance the interfacial combination of TiO
2
with carbon nanotubes. The formation of TiO
2
and its compounding ... Preparation and characterization of CNTs–TiO
2
composites
Li Chen
*
, Bai-Lan Zhang, Mei-Zhen Qu, Zuo-Long Yu
*
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, ... process of CNTs.
Fig. 3 shows TEM image of CNTs–TiO
2
composites in
which the black materials of different size absorbed onto
Fig. 1. TEM image of as purified CNTs.
Fig. 2. XPS spectrum of purified...
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- 0
preparation and characterization of high surface area nanosheet titania with mesoporous structure
Ngày tải lên :
20/03/2014, 13:06
... the use of TEM apparatus and to Prof. T.
Yoko, Institute for Chemical Research, Kyoto University for the
use of XRD equipment. This work was supported by grant -in-
aids from the Ministry of Education, ... images of the nanosheet TiO
2
calcined at 600 and 700 °C showed almost nanoparticles with a mixture
of anatase and rutile TiO
2
structure (about 10–50 nm in diameter, at
600 °C, Fig. 6(g–h)), and ... pattern of the as-synthesized nanosheet TiO
2
and
nanosheet TiO
2
calcined for 1 h at 300–700 °C.
2975S. Pavasupree et al. / Materials Letters 61 (2007) 2973–2977
surface area and pore volume of the...
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preparation and characterization of monodispersed wo3 nanoclusters on tio2(110)
Ngày tải lên :
20/03/2014, 13:06
... and angles) of O, W and Ti are
expected but, not surprisingly, are too small to be detectable as
shifts of W
4f
and Ti
2p
core level BEs and cannot be resolved in
STM images.
The appearance of ... supports makes it difficult to gain control of cluster
size in preparing samples, and mass control of deposited
species has been limited to soft-landing of gas-phase mass-
selected charged species ... WO
3
nm
À2
and metallic W.
Fig. 2. Linear correlation of W
NVV
/Ti
LMM
AES ratio and W
4f
intensity with
amount of deposited WO
3
, the latter is plotted in units of WO
3
nm
À2
based
QCM measurement of...
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- 0
preparation and properties of magnetic iron oxide nanotubes
Ngày tải lên :
20/03/2014, 13:06
... diameters of the rings, respectively) and
t = 160–200 nm (t is the thickness of the rings or length of the
tubes) nanorings due to the absence of the vortex states and the
presence of out-plane and ... spectra of samples S2 (a) and S3 (b).
can be exclusively indexed to ␣-Fe
2
O
3
, according to standard
data (JCPDS 33-0664). In Fig. 1(b) and (c), the reflection peaks
of XRD patterns of S2 and S3, ... think that sample S2 is Fe
3
O
4
and sample S3
is ␥-Fe
2
O
3
.
Fig. 3 presents the SEM and TEM images of samples S1,
S2 and S3. Fig. 3(a) and (b) show the morphologies of ini-
tial synthesized ␣-Fe
2
O
3
nanotubes...
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- 0
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