... khi HKV
Đ
H phá
h
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y d
ọ
c theo m
ặ
t
ứ
ng su
ấ
t pháp l
ớ
n nh
ấ
t,
90
o
T
θ
= , ta m
ớ
i có
T o
σ σ
=
[4]
; Tuy v
ậ
y,
h
ầ
u h
ế
t các HKV
Đ
H phá h
ủ
y theo mode
tr
ượ
t v
ớ
i các góc ... x
ứ
ng
độ
b
ề
n khác nhau có th
ể
đượ
c phân b
ổ
theo các
giá tr
ị
cao t
ươ
ng
đố
i c
ủ
a t
ỷ
s
ố
0.385 - 0.707
o o
a
τ σ
= = tuân theo tiêu
chu
ẩ
n phá h
ủ
y th
ố
ng nh
ấ
t.
[4]
Ở
... sao dưới tác
dụng ứng suất kéo, HKVĐH lại không bị
phá hủy theo mặt ứng suất pháp tuyến lớn
nhất ( 90
o
T
θ
= ) hoặc không phá hủy theo
trục ứng suất trượt lớn nhất ( 45
o
T
θ
= )? Bản
chất...
... bullet-proof fashion that will
stand the test of time. The second, and for the working mathematician the
most important, aspect of proof is that the proof of a new theorem explains
why the result ... one symptom ofthe ongoing battle.
The idea of “proof” certainly appears in many aspects of life other than
mathematics. In the courtroom, a lawyer (either for the prosecution or the
defense) ... contains papers with mathematical proofs. A friend of
mine recently had a paper rejected there for lack of a proof.
0.2. THE CONCEPT OF PROOF 5
and surprises.
0.2 The Concept of Proof
It is well to...
... MEDICINE
of the national domestic agenda, the choice of EBM by the IOM Council as
the theme ofthe 2007 IOM Annual Meeting underscores its centrality and
importance to healthcare improvement and offers ... Crossing the Quality Chasm
(2001). In the face ofthe growing awareness generated about thenature
and implications ofthe gap between healthcare practice and the evidence
base, the IOM Roundtable ... Hayward, associate professor ofthe Departments of Medicine
and Public Health Sciences and director ofthe Centre for Health Evidence
(CHE) at the University of Alberta, noted that in the messy informational...
... the councils ofthe National Academy of
Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the
committee responsible for the report were chosen for their ... secure the
services of eminent members of appropriate professions in the examination of policy matters
pertaining to the health ofthe public. The Institute acts under the responsibility given to the ... VERVIEW
9
Strategic Principle 5. The Secretary of Energy and the Director ofthe Na-
tional Science Foundation, working with the White House Office of Science
and Technology Policy and the Office of Management...
... because the mechanics ofthe system, with the splines
moving freely along the nails, allows the total bending energy ofthe spline to settle down at its minimum
[30]. I marked the contours of two ... distribution of spots. The lighter a particular area ofthe image is, the higher the density of
random spots, or “events”, the algorithm generates in this area. Fig. 9 shows the output ofthe program
used ...
that echoes the symmetry ofthe buckyball grow through the structure. The orientation ofthe buckyball
was chosen such that two opposite hexagons, one at the bottom and one on the top, are...
... waterproof /
/
wc:tCpru:f
/ (a): waterproof clothes keep you dry because they do not let
rain pass through them: không thm nc
a waterproof jacket: áo ves-tông không thm nc
IN THE KNOW: The ... KNOW: The penguins of Philip Island are very small, as can be seen in the
photograph. They are also a tourist attraction. They walk along the same pathways from the sea to
their nests every ... _________ in the headphones.
4. First, Soriah fed the cat. Then, she called her mother.
Soriah _________ her mother after she _________ the cat.
5. First, Marie did her homework. Then, she...
...
spot.
Imagining
the
feeling
of
jumping
off the cliff
and
the fear
of
someone
standing
at
the
top
of
it accentuates the
sublimity
of the
place. But
this train of
images
would ...
with
the
spectacular
crashing
sound
of
the
The
Journal
of
Aesthetics
and
Art
Criticism
waves
hitting
the
sand.
I
delight
in
the
contrast
of the still
water in the horizon ...
pair
of
swans in
one
of the
ponds.
My
delight
in
these
aspects of
the
place
may
have
been
heightened
by
my
background
knowledge
of
the
debate
and the
history
of the
place,...
...
A. The determination of stress patterns
B. The determination of consonantal doubling rules
in the inflection of English verbs
C. The determination of word-breaking rules as used
in end -of -the- line ... or later face
the problem of unscrambling English affixes. The role of affixes is crucial
in the study of word-breaking practice. In the automatic determination
of the parts of speech (a central ... respectively. The other strong affixes are
found from similar determinations of their classes. See
Table IV for the complete list of admissible classes for
the determination ofthe strong suffixes....
... to the environment, they are themselves subject to the dynamics ofthe
environment. These dynamics, which are produced by the interactions ofthe nodes and
shaped by the media that channel the ... made audible the resonances between
the blast of Dada at the end of WWI in Zurich and Berlin, the gust ofthe Situationists on the
Rive Gauche in Paris in the 1960s, and the explosion of Punk Rock ...
supporters of FOSS.
For the time being, the low costs which increase its accessibility are offset by the still rather
high barrier of technical expertise necessary to make use ofthe much ofthe software....
... 2007).
The fluctuations of credit in the context of secured lending expose the fallacy ofthe lump
of liquidity in the financial system. The language of liquidity suggests a stock of available ... consisted of reverse repos in addition to
other types of collateralized lending. Much of this collateralized lending was short term, often
overnight. The other feature ofthe asset side ofthe balance ... 1980, the monetary policy literature primarily focused on the role of monetary
aggregates in the supply of credit. However, with the emergence ofthe market-based financial
system, the ratio of...
... A
˚
.We
examine the variation ofthe direct band gap with width, as
well as thenatureofthe band structure ofthe nanowires.
We confirm previous observations ab out the direct or
indirect natureofthe ... oriented along the (1 0 0), (1 1 0) and (1 1 1) directions. We show that thenatureofthe band gap and the
variation ofthe zone centre band gap with nanowire width depends upon the nanowire stacking ... gap. For the (1 1 0) case, effective mass arguments
are required to explain thenatureofthe energy gap in the
associated nanowire.
In bulk material the CB minimum for Si lies along the six
equivalent...
... these
people, one ofthe ducts usually drains only a small part
of the pancreas and empties directly into the duode-
num. The other duct drains most ofthe pancreas but is
often too small for the job, ... 16-27 depicts the major
causes. Gallstones are by far the most common cause of
obstruction. Other causes include cancer ofthe head of
the pancreas, pancreatitis, inflammatory disease of the
ducts, ... pancreatic duct
merges with the common bile duct, and together they
pass through the head ofthe pancreas before emptying
into the duodenum at the ampulla of Vater.
The pancreas is exceptional...
... 1-2 at the
end ofthe chapter offers another example to think
about.
THE EFFECT OF DISEASE PREVALENCE ON TEST
USEFULNESS
The prevalence of a disease is the number of persons
who have the disease ... to be synthesized by elements of the
cytoplasm. RNA carries DNA messages from the nu-
cleus into the cytoplasm, the fluid part ofthe cell sur-
rounding the nucleus.
DNA is constructed of building ... 275
Nomenclature of Blood Vessel Disease / 277
Atherosclerosis / 277
The Causes and Consequences of
Atherosclerosis / 277
The Pathogenesis of Atherosclerosis / 278
Risk Factors for Atherosclerosis / 279
The...