status earning of carbon
The Science and Technology of Carbon Nanotubes potx
Ngày tải lên :
05/03/2014, 17:20
... of
diffraction space at the levels indicated
by
arrows. Note
the
absence of azimuthal
dependence of the intensity. The radii of the
dark
circles are given by the zeros of the
sums
of ... extent of the deformation of the hexagon depends
on the direction
of
incidence of the electron beam with respect to the tube axis.
With increasing tilt angle
of
the specimen pairs of reflexions ... the dependence of@ e structure
of
EELS on the diameter and the anisotropic features
of
CNTs.
1
Introduction
-
Morphological
Features
of
CNTs
Since the discovery of carbon nanotubes...
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Báo cáo khoa học: Identification of carbonic anhydrase 9 as a contributor to pingyangmycin-induced drug resistance in human tongue cancer cells ppt
Ngày tải lên :
06/03/2014, 22:21
... because of the
methylation of the promoter, and restoration of DKK1
expression can induce apoptosis and suppress colony
formation [42]. As a suppressor of cancer, the downreg-
ulated expression of ... study,
the expression of MT2A was upregulated in Tca8113 ⁄
PYM cells. MT2A, as the main isoform of MTs, may
closely mediate the resistance of Tca8113 ⁄ PYM cells to
PYM.
BMP2 is a member of the transforming ... therapeutic benefits
of PYM can be attenuated in the clinic, because of
intrinsic and ⁄ or acquired drug resistance, which is the
major limitation of PYM-based chemotherapy.
The mechanism of cellular...
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Bare rods for GMAW welding of carbon steel (1)
Ngày tải lên :
12/03/2014, 17:52
... welding heat
treatable steels of similar composition commonly found in
petro-chemical and power generating industries
AWS A5.18: ER70S-6
Copper coated, low carbon steel wire specially
formulated ... gases. Suitable for welding mild
and medium strength steels. Is ideal for positional
welding of sheet steel and steel pipes/tubes where
high silicon content promotes smooth even weld
beads...
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Accounting for carbon - The impact of carbon trading on financial statements pptx
Ngày tải lên :
15/03/2014, 16:20
... release of deferred presented by nature or function and the disclosure of depend upon the company’s particular transactions
income from a government individually material items. In respect of carbon ... reflect the business practice of your company.
© 2008 KPMG LLP, a UK limited liability partnership, is a subsidiary of KPMG Europe LLP and a member firm of the KPMG
network of independent member firms ... reserved.
Accounting for Carbon 15
© 2008 KPMG LLP, a UK limited liability partnership, is a subsidiary of KPMG Europe LLP and a member firm of the KPMG
network of independent member firms...
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Deposition of carbon nanotubes on si nanowires by chemical vapor deposition
Ngày tải lên :
16/03/2014, 15:04
... relatively
high (b1100°C), a mixture of graphitic carbon and
SiC nanowires was formed because of both the
carbonization of the nanowires and the fast carbon
deposition to form the carbon- like structure.
4. ... formed by carbon atoms diusing into the
Si NWs, CNTs could not be formed very well on
the surface of nanowires because of both the
volume change of the nanowires and breaking of
the carbon network ... formation
of tube-like carbon shell structure and a carbon-
ization eect for the transformation of Si NWs to
SiC nanowires. At a relatively low substrate tem-
perature ($900°C), the deposition rate of...
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purification of carbon nanotubes
Ngày tải lên :
20/03/2014, 13:06
... weight of the original carbon sample. Furthermore,
they found that the yield depended crucially on the flow rate
of oxidant, the amount of initial sample, the manner of pack-
ing of the carbon, ... catalytic
decomposition of hydrocarbons. Carbon 2000;38(14):2041–5.
[130] Montoro LA, Rosolen JM. A multi-step treatment to effective
purification of single-walled carbon nanotubes. Carbon
2006;44(15):3293–301.
2024 ... ions as a result of dissolution of
Fig. 3 – Mass balance of the normalized weight percentage of
all components including SWCNTs, metal, carbonaceous
impurities, and weight loss of the SWCNT samples
(reprinted...
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Báo cáo khoa học: Catalyzing separation of carbon dioxide in thiamin diphosphate-promoted decarboxylation ppt
Ngày tải lên :
23/03/2014, 06:20
... proton-
ate the carbonyl of the substrate to promote addition
of the ylide of ThDP. On the other hand, if H70 is the
most effective proton donor in suppressing the return
of carbon dioxide, its ... (ThDP) is a cofactor that
promotes the decarboxylation of 2-ketoacids through
formation of covalent derivatives between its C2 thia-
zolium and the carbonyl of the substrate. Combina-
tion of a protein ... decarbox-
ylation of pyruvic acid by pyruvate decarboxylases in
Scheme 1.
Protonation at the basic carbon and elimination of
ThDP leads to formation of an aldehyde (giving a net
substitution of a proton for carbon...
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Mechanical Properties of Carbon Nanotubes potx
Ngày tải lên :
24/03/2014, 05:20
... the point of view of elasticity theory, the definition of the Young’s
modulus involves the specification of the value of the thickness h of the tube
wall. In this sense, the large value of Y obtained ... formation of the SW
defect is strongly dependent on curvature, i.e., on the diameter of the tube
and gives rise to a wide variety of behaviors in the brittle-vs-ductile map of
stress response of carbon ... Buckling
and rippling of the outermost layers in a dynamic resonant bending has been
directly observed and is responsible for the apparent softening of MWNT of
larger diameters. A variety of largely and...
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A Comparative Analysis of Carbon Dioxide Emissions in Coated Paper Production Key Differences between China and the U.S. pot
Ngày tải lên :
24/03/2014, 05:20
... of wood-removal and firewood-removals plus oven-dry weight of branches, twigs, foliage of the trees
or stands removed.
Carbon content
Absolute amount of carbon in a pool or parts of it.
Carbon ... sources of carbon dioxide emissions from BHKP production
As can be seen from the bar graph below, the major driver of the carbon dioxide emissions in production of BHKP
is coal-fired boilers. Of ... largest producer. APP has a capacity of
approximately 2.8 million metric tons of coated paper in 2007 or about 15% of the total production of coated
papers of all types in China (Resource Information...
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Formation of carbon–carbon single bonds pot
Ngày tải lên :
29/03/2014, 03:20
... Modern Methods of Organic Synthesis
W. Carruthers and Iain Coldham
Excerpt
More information
1
Formation of carbon carbon single bonds
The formation of carbon carbon single bonds is of fundamental ... Methods of Organic Synthesis
W. Carruthers and Iain Coldham
Excerpt
More information
10 Formation of carbon carbon single bonds
Another technique is to block one of the ␣-positions by introduction of ... alkylation of
ketones and often results in decreased yields of the desired monoalkyl compound.
An explanation for the presence of considerable amounts of polyalkylated prod-
uct(s) is that enolates of...
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Báo cáo khoa học: Enhanced sensitivity to hydrogen peroxide-induced apoptosis in Evi1 transformed Rat1 fibroblasts due to repression of carbonic anhydrase III docx
Ngày tải lên :
29/03/2014, 08:20
... pro-
tects cells from a variety of inducers of apoptosis, the
effects of H
2
O
2
have not yet been examined. Rat1 cells
and 5.61 cells were exposed to various concen-
trations of H
2
O
2
and cell viability ... Surprisingly, the viabil-
ity of 5.61 cells was significantly less than Rat1 cells at
each concentration of H
2
O
2
(Fig. 3A). The viability of
the entire panel of cell populations was examined ... activity of any of
these motifs require experimental investigation.
Alternatively, repression of caIII gene expression
could be indirect. Evi1 has been shown to interact with a
number of transcription...
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electrical and thermal interface conductance of carbon nanotubes grown under dc bias voltage
Ngày tải lên :
06/05/2014, 08:53
... the existence of multiple G peaks. The quality of the
fit in the low-energy and high-energy tails of the D- and
G-bands, respectively, is good. The assignment of the peak
components of the D- and ... the presence of defects on the walls of
CNTs could be of benefit for some applications such as
electrochemical biosensing, an additional outcome of this work
involves the control of defect density ... (MPCVD) process is the presence of a wide
parameter space that facilitates the control of the CNT growth
properties. The dc voltage bias is one of the influential
parameters of the MPCVD because it directly...
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palladium thiolate bonding of carbon nanotube thermal interfaces
Ngày tải lên :
06/05/2014, 08:54
... Mechanics and Thermal
Conductance of Carbon Nanotube Array Interfaces,” Int. J. Heat Mass Transfer,
52(15–16), pp. 3490–3503.
[29] Tersoff, J., 1999, “Contact Resistance of Carbon Nanotubes,” Appl. Phys. ... R., and Fisher,
T. S., 2006, “Parametric Study of Synthesis Conditions in Plasma-Enhanced
CVD of High-Quality Single-Walled Carbon Nanotubes,” Carbon, 44(1),
pp. 10–18.
[27] Zoval, J. V., Biernacki, ... from the Department of Science and Technology, Govern-
ment of India. S. Hodson and T.S. Fisher gratefully acknowledge
partial support of this work from Raytheon as part of the DARPA
Nano Thermal...
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photoacoustic characterization of carbon nanotube array thermal interface material
Ngày tải lên :
06/05/2014, 08:54
... resistance of
22 mm
2
K/W for a 50
m thick layer. A resistance of
20 mm
2
K/ W was measured with the PA technique for an
approximate interface temperature of 55 ° C and pressure of
0.138 MPa, ... applications.
2
An application of current interest,
partially motivated by the intrinsically high thermal
conductivity
3–6
and elastic modulus
7,8
of CNTs, is the use of
CNT and carbon nanofiber ͑CNF͒ ... is much
less than the radius of the PA cell, the PA signal is indepen-
dent of the energy distribution of the incident laser beam;
therefore, a one-dimensional model of the PA effect is
adequate.
36
The...
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palladium thiolate bonding of carbon nanotube thermal interfaces
Ngày tải lên :
06/05/2014, 08:58
... Mechanics and Thermal
Conductance of Carbon Nanotube Array Interfaces,” Int. J. Heat Mass Transfer,
52(15–16), pp. 3490–3503.
[29] Tersoff, J., 1999, “Contact Resistance of Carbon Nanotubes,” Appl. Phys. ... R., and Fisher,
T. S., 2006, “Parametric Study of Synthesis Conditions in Plasma-Enhanced
CVD of High-Quality Single-Walled Carbon Nanotubes,” Carbon, 44(1),
pp. 10–18.
[27] Zoval, J. V., Biernacki, ... from the Department of Science and Technology, Govern-
ment of India. S. Hodson and T.S. Fisher gratefully acknowledge
partial support of this work from Raytheon as part of the DARPA
Nano Thermal...
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