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Check Your English Vocabulary for Living in the UK.pdf
Ngày tải lên :
08/08/2012, 17:32
... enter key words which will help you find the information you need. The BBC
__________ (www.bbc .co. uk) is particularly recommended for news and information from around
the world.
Look at the pairs ... True or false: Great Britain is another name for the UK.
4. Is there just one government for the whole of the UK?
5. Who is the Head of State of the UK?
6. Where might you expect to hear Welsh ... from the north coast of Scotland to the south coast of England?
22. How far is it (in miles) across the widest part of the United Kingdom, from the west coast of Wales
to the east coast of England?
23....
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Getting Started With ASP.NET ASP.NET is a new and powerful technology for writing dynamic web pages.
Ngày tải lên :
06/11/2013, 00:15
...
registry. For this reason it is very often considered a security risk and is not even allowed through firewalls.
Consequently, ActiveX controls still can't really be considered either a common ... whose content consists of some HTML code that was typed
directly into a text editor and saved as an .htm or .html file. Thus, the author of the page has already
completely determined the exact content ...
don't need to connect, you can correct this misperception by changing the way that IE looks for pages. To do
this, select the Tools | Connections option and select Never dial a connection.
Chapter...
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Tài liệu Dictionary of Applied Math for Engineers and Scientists doc
Ngày tải lên :
10/12/2013, 12:15
... Standard Code for
Information Interchange. A code for represent-
ing alphanumeric information.
Ascoli Giulio Ascoli (1843–1896), Italian
analyst.
Ascoli’s theorem Let {f
n
} be a family of
uniformly ... or com-
mutative if a · b = b · a for all a, b ∈ G.
Abelian theorems (1) Suppose
∞
n=0
a
n
x
n
converges for |x| <Rand for x = R. Then the
series converges uniformly on 0 ≤ x ≤ R.
(2)Forn ... func-
tion of cosine. The arccosine of a number x
is a number y whose cosine is x, written as
y = cos
−1
(x) = arc cos(x), i.e., x = cos(y).
arccotangent The inverse trigonometric
function of cotangent....
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Tài liệu Open channel hydraulíc for engineers ppt
Ngày tải lên :
20/12/2013, 19:15
... CHANNEL HYDRAULICS FOR ENGINEERS
v
2.3.1. Concept 32
2.3.2. Conditions for maximum discharge 32
2.3.3. Problems of uniform-flow computation 36
2.4. Channel with compound cross-section ... model characteristics; roller
x x-component
y y-component
z z-component
1 upstream flow conditions
2 downstream flow conditions
OPEN CHANNEL HYDRAULICS FOR ENGINEERS
vii
LIST OF ... through open channel 6
1.2. Structure of the course 7
1.2.1. Objectives of the course 7
1.2.2. Historical note for the course 7
1.2.3. Structure of the course 8
1.3. Dimensional analysis 10
1.3.1....
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Tài liệu Open channel hydraulics for engineers. Chapter 1 introduction ppt
Ngày tải lên :
20/12/2013, 19:15
... the prototype are acted on by corresponding forces. These forces are the
force of gravity F
g
, the pressure force F
p
, and the viscous resistance force F
v
. These forces
add vectorially in ...
them have corresponding forces. Or in other words, dynamic similarity is said to exist
between the model and the prototype, if the ratios of the corresponding forces acting at
corresponding ... resultant force F
R
, which will in turn produce an
acceleration of the volume of fluid in accordance with Newton’s second law.
Rm m m
Rp p p
F M a
F M a
OPEN CHANNEL HYDRAULICS FOR ENGINEERS...
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Tài liệu Open channel hydraulics for engineers. Chapter 2 uniform flow docx
Ngày tải lên :
20/12/2013, 19:15
... Problems of uniform-flow computation
The computation of uniform flow may be performed by the use of two equations:
the continuity equation and a uniform-flow formula. When the Manning formula is ...
be controlled by checks. In hard-surfaced channels, silting is easily controlled if fall for
scouring velocity is available.
OPEN CHANNEL HYDRAULICS FOR ENGINEERS
Chapter 2: UNIFORM ...
uniform flow computation:
A. to compute the normal discharge:
In practical applications, this computation is required for the determination of the
capacity of a given channel or for the construction...
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Tài liệu Open channel hydraulics for engineers. Chapter 3 hydraulics jump doc
Ngày tải lên :
20/12/2013, 19:15
...
C
h
depth
E
E
min
E vs h for q = constant
OPEN CHANNEL HYDRAULICS FOR ENGINEERS
Chapter 3: HYDRAULIC JUMP
64
3.5.4. Energy loss
We continue considering that the energy-head ...
This force is responsible for change of velocity from V
1
to V
2
.
We know that this force is also equal to the change of momentum of the control volume:
Force = mass of water flowing per second ... (energy) correction coefficient accounting for using the depth-avegared flow
velocity instead of the (full) velocity distribution.
For a channel of large slope angle and velocity distribution coefficient...
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Tài liệu Open channel hydraulics for engineers. Chapter 4 non uniform flow ppt
Ngày tải lên :
20/12/2013, 19:15
... CHANNEL HYDRAULICS FOR ENGINEERS
Chapter 4: NON-UNIFORM FLOW
73
4.1.3. Equation of non-uniform flow
Fig. 4.3. Non-uniform flow
Consider a non-uniform flow in an ... required for this channel to be
OPEN CHANNEL HYDRAULICS FOR ENGINEERS
Chapter 4: NON-UNIFORM FLOW
83
4.3.4. Composite flow profiles with various controls
Channels with a number of controls ... energy line, as was the case for
uniform flow. The following points are made in connection with the above observations.
upstream control
downstream control
control
sluice
gate
rapid...
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Tài liệu Open channel hydraulics for engineers. Chapter 5 spillways pptx
Ngày tải lên :
20/12/2013, 19:15
... CHANNEL HYDRAULICS FOR ENGINEERS
Chapter 5: SPILLWAYS
105
5.5.2. Broad-crested weir discharge formula
Consider the section on the weir crest in case of a critical flow condition At this ... 0.623
The more modern formulae of Hegly, 1921, and the Swiss Society of Engineers (SIA),
1924, for rectangular contracted weirs reproduce basically the same idea. These formulae
are quoted below: ... smaller than for rectangular weirs, as the cross-sectional
area of the notch is small in comparison with the channel cross-section. This condition
would ordinarily apply to weirs designed for accurate...
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Tài liệu Open channel hydraulics for engineers. Chapter 6 transitions and energy dissipators docx
Ngày tải lên :
20/12/2013, 19:15
... face of a dam is sometimes
constructed of high-grade concrete, whereas the inner core of the dam wall is constructed
of economical low-grade concrete, mixed and compacted in place, i.e. the ...
surface contours
flow
positive waves,
i.e. increasing depth
and converging contours
negative waves, i.e.
decreasing depth
and diverging
contours
OPEN CHANNEL HYDRAULICS FOR ENGINEERS ... We can therefore write, using the terms defined in Fig. 6.6,
1 1 2 1
V cos V cos
(6-7)
Considering now the velocity components normal to the wave front, the continuity
equation...
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Tài liệu Open channel hydraulics for engineers. Chapter 7 unsteady flow docx
Ngày tải lên :
20/12/2013, 19:15
...
steady uniform flow
steady non-uniform flow
unsteady non-uniform flow
1
2
h +z
Q
1
Q
2
x
datum
OPEN CHANNEL HYDRAULICS FOR ENGINEERS
Chapter 7: UNSTEADY FLOW
136
Continuity: ...
Fig. 7.2. Definition sketch for the equation of continuity
In Section 1.1.3, Chapter 1, the equation of continuity is written in the form:
Q
1
= Q
2
= constant
But in this case, the ... depth h and, according to Sergio Montes (1998),
their relation /c equals 2 for a rectangular section and /c = 4 for a triangular section,
with values comprised between these limits for trapezoidal...
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Tài liệu VIRTUAL REALITY - A NEW TECHNOLOGY FOR THE MECHANICAL ENGINEER docx
Ngày tải lên :
23/01/2014, 07:20
... discussion,
VR
technology provides
the
tools
for an
enhanced
level
of
interaction
in
three dimensions with
the
computer.
The
need
for
real-time performance while
depicting
complex virtual ... this
is
that
the VR
technology
has
become available
at an
affordable
price
so as to be
considered
a
viable tool
for
interactive design
and
analysis.
Mechanical
Engineers& apos;
Handbook,
... Environment
for
Computer-Aided
Design,"
in
Proceedings
of the ACM
SIGCHI
1994
Conference:
CHI'94
Human
Factors
in
Computing Systems, Boston,
WWW
URL:
http://gummo.stanford.edu/
html/DesignSpace/home.html
29....
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Tài liệu Organization for Security and Co-operation in Europe - Ministerial Council pptx
Ngày tải lên :
18/02/2014, 00:20
...
Permanent Council. The Forum for Security Co- operation will make its own
contribution to this work within its competencies and mandate, and in accordance
with Bucharest Ministerial Council Decision ... developed a
comprehensive paper, containing a great variety of options for possible forms of
politico-military co- operation and for voluntary implementation of FSC instruments and
commitments. ... Open Skies Consultative Commission. They look forward to the
forthcoming First Review Conference of the Treaty on Open Skies from 14 to
16 February 2005.
18. Arms control and confidence-...
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