thermodynamic behaviour of an ideal fermi gas
development of an ozone gas sensor using single - walled carbon nanotubes
Ngày tải lên :
19/03/2014, 16:47
... recovery
was obtained by degassing thechamber for 500 s. During the second
cycle, with the same concentration of ozone and the same period of
gas injection and degassing, the change of the sensor response ... mechanism of the resis-
tance change of SWCNTs exposed to ozone gas is as follows: an O
3
molecule has one unpaired electron and is a strong oxidizer. Upon
O
3
adsorption, electron transfer is ... pressure
inside the gas chamber changes during an experiment. The tem-
perature of our sensor can also vary during recovery because of the
Fig. 4. Response of the SWCNT-based sensor to O
3
of 1 ppm without...
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- 441
- 0
static behaviour of natural gas andits flow in pipes
Ngày tải lên :
27/07/2014, 23:44
... z-factor and compressibility of Nigerian
Natural gas ’, Advances in Materials and Systems Technologies, Trans Tech
Publications Ltd, Laubisrtistr. 24, Stafa – Zurich, Switzerland
12. Ouyang, I and ... / Day and
g
is in centipoises.
Ohirhian and Abu (2008) have presented a formula for the calculation of the viscosity of
natural gas. The natural gas can contain impurities of CO
2
and H
2
S. ... / Day and
g
is in centipoises.
Ohirhian and Abu (2008) have presented a formula for the calculation of the viscosity of
natural gas. The natural gas can contain impurities of CO
2
and H
2
S....
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- 1.1K
- 0
Báo cáo lâm nghiệp: "Modelling the biomechanical behaviour of growing trees at the forest stand scale. Part I: Development of an Incremental Transfer Matrix Method and application to simplified tree structures" pptx
Ngày tải lên :
08/08/2014, 01:22
... 365–374.
[30] Morgan J., Cannell M.G.R., Support cost of different branch
designs: effects of position, number, angle and deflection of laterals,
Tree Physiol. 4 (1988) 303–313.
[31] Morgan J., Cannell ... relationship
between tree architecture and biomechanical behaviour to be
analysed [20]. However, this software is not adapted to calcu-
late the biomechanical behaviour of a large number of growing
trees due to ... numerical analysis
of growing stem biomechanical behaviour [2]. The Transfer
Matrix Method was already used so as to analyse the static
shape and stresses in tree shoots/trunks and branches [6,...
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- 0
Báo cáo y học: " Derivation and preliminary validation of an administrative claims-based algorithm for the effectiveness of medications for rheumatoid arthritis"
Ngày tải lên :
25/10/2012, 10:45
... made substantial contributions to conception and design, and to the analysis and
interpretation of the data. TRM and GWC handled acquisition of data. All authors contributed
to the manuscript ...
41:1845-1850.
26. van Gestel AM, Prevoo ML, van 't Hof MA, van Rijswijk MH, van de Putte LB, van Riel PL:
Development and validation of the European League Against Rheumatism response
criteria ...
Race / Ethnicity
Caucasian, not Hispanic 159 (81%) 248(81%)
Non-Caucasian Hispanic 7 (4%) 8(3%)
Black, not Hispanic 27 (14%) 45(15%)
American Indian or Pacific
Islander
4 (2%) 4(1%)
RA...
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- 0
Báo cáo y học: "Effect of Acute Administration of an Herbal Preparation on Blood Pressure and Heart Rate in Humans"
Ngày tải lên :
25/10/2012, 11:10
... min after capsule in-
gestion.
Three analyses of the data were performed using
2 x 2 analysis of variance (ANOVA). For the first data
analysis, treatment and time were the independent
factors ... tyramine and caffeine. So African Med
J. 2008; 98: 372-373.
22. Sander LC, Putzbach K, Nelson BC, et al. Certification of
standard reference materials containing bitter orange. Analyt
Bioanalyt ... decongestants and is not
a constituent of C. aurantium.
Because of the known cardiovascular effects of
nor-epinephrine and ephedrine, it has generally been
assumed that consumption of p-synephrine...
- 6
- 490
- 0
Báo cáo y học: "Mechanical behaviour of standardized, endoskeleton-including hip spacers implanted into composite femurs"
Ngày tải lên :
26/10/2012, 09:53
... element
model of spacer and femur was developed to analyze
stresses. The analysis was performed using ANSYS, a
FEA software (ANSYS Inc., Canonsburg, United
States). The standardized femur ... porosity and
wettability of gentamicin-loaded bone cements and their anti-
biotic release. Biomaterials. 2000; 21(19):1981–1987.
26. Picknell B, Mizen L, Sutherland R. Antibacterial activity of
antibiotics ... spacers by means of a
moulding form gives the possibility of customizing
the antibiotic contained in the cement and insert an
adapted endoskeleton. Present clinical experience and
mechanical studies...
- 7
- 362
- 0
A study oF An alternative approach to teaching essay writing to TOEFL learners Minor Thesis
Ngày tải lên :
06/11/2012, 10:35
... from frames, tables and other
guides, and then produce an essay through answering a set of questions. Minor changes and
substitutions of blank space, punctuation marks, and capitalization are ... practice of English Language Teaching, Longman handbooks for
language teacher: Longman group, ltd.
15. Heaton, J. B.1989. Writing English test, Longman handbooks for language teacher:
Longman group, ... checklists of 10
writing papers at the beginning of the course and the checklist of 10 writing papers at the end of
12
REFERENCES
In Vietnamese
1. Canh, Le Van. 2004. Understanding Foreign language...
- 48
- 601
- 1
A study oF An alternative approach to teaching essay writing to TOEFL learners Minor Thesis
Ngày tải lên :
06/11/2012, 10:35
... Parents are good so their children can follow
Firstly, parents are old and experienced people. They know many things in life and what
they know they want their kids can know. Moreover, they work, ... small, their parents can take care of them closely. But when they
grow up, they go to school, have friends and teachers, so they can learn from their friend, their
teacher and their books, too. ... career preparation. Many learners go to university or
college want to get a good job in the future. Therefore they tried to learn most subjects at school
meeting the demand of social.
The second...
- 4
- 480
- 0
An Ideal Husband
Ngày tải lên :
06/11/2012, 14:12
...
MASON. [Announcing guests from the top of the staircase.] Mr. and Lady Jane
Barford. Lord Caversham.
[Enter LORD CAVERSHAM, an old gentleman of seventy, wearing the riband
and star of the Garter. ... mouth and chin contrast strikingly with the romantic expression in
the deep-set eyes. The variance is suggestive of an almost complete separation
of passion and intellect, as though thought and ... parted lips, is
expectant, like the mouth of a child. She has the fascinating tyranny of youth, and
the astonishing courage of innocence. To sane people she is not reminiscent of
her movements...
- 11
- 364
- 0
The Heart of an Assassin
Ngày tải lên :
06/11/2012, 14:13
... Staten Island, and Long Island.
Though much smaller than the Costellino family, they operated a
lot more efficiently and had ties to one of the biggest crime
families out of San Francisco. ... drugs, and the numbers rackets. They operated
solely in Manhattan and the Bronx and were looking to expand
into Giordano territory. They numbered over two hundred, but
were not as efficiently managed ... third stack
and extracted an identical number of items from the fourth
stack.
The stranger had entered the closet as Jack Ferrari and
exited it as Tim Goldman.
The Heart of an Assassin...
- 18
- 374
- 0
Action research on students’ inactiveness in pre-writing group discussion of an essay-writing essay practice lesson at hong duc university,thanh hoa
Ngày tải lên :
07/11/2012, 14:31
... discussion)
- effect of different tasks on groupwork.
Like any kind of praxis, groupwork can lose its meaning if it is handled in an automatic
and unthinking way:
- The topic is boring or out of students' ... Development and
Conclusion. Part 1: Introduction presents the rationale, the method of study, the scope of
the study, the subject of the study, the significance of the study and the design of the ... correcting and/or marking at home (rest of
time)
In Step 1 in early stages the teacher should choose an interesting, easy and simple
topic and make sure that all of his/her students understand and...
- 45
- 855
- 1
Evaluating the Reliability and Validity of an English Achievement Test for Third-year Non- major students at the University of Technology, Ho Chi Minh National University and some suggestions for chan
Ngày tải lên :
07/11/2012, 15:05
... the list of numbers that occur most frequently. Thus, in this set of numbers,
there are two modes, which are 6 and 7
Measures of Dispersion: the standard deviation (sd) and the range
Range is ... coefficient, N: number of items, X: Mean of all scores,
sd: standard deviation of the test)
Rt is expressed as a number ranging between 0 and 1.00, with r = 0 revealing no
reliability and r = 1.00 indicating ... coefficient (0.53) and low
difficulty and discriminability index and is not valid enough with many weak items and
unbalanced parts. These shortcomings can be improved through some changes as
recommended...
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- 1.9K
- 13
Modeling the Statistical Time and Angle of Arrival Characteristics of an Indoor Multipath Channel
Ngày tải lên :
20/11/2012, 11:32
... no moving transmitter or receiver as
in figure 1.1.
As can be seen in figure 1.2, multipaths in an indoor environment can come
from a wide range of different angles. This can be an advantage because ... collect narrowband angle of arrival data and wideband time of arrival data, but did
not collect any data in which the two were measured simultaneously. Wang, et al [14], used
a rectangular array ... indoor
channel using a multiple antenna system to evaluate antenna diversity performance. Rap-
paport and Hawbaker [8] compared the path loss and delay spread performance of several
different types of...
- 73
- 509
- 0
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- xác định thời lượng học về mặt lí thuyết và thực tế
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- khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu
- nội dung cụ thể cho từng kĩ năng ở từng cấp độ
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