electronic engineering and telecommunications
Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science
Ngày tải lên :
25/04/2013, 08:07
... Electrical Engineering and Computer Science
6.087: Practical Programming in C
IAP 2010
Problem Set 3
Control flow. Functions. Variable scope. Static and global variables. I/O: printf and scanf. ... File
I/O. Character arrays. Error handling. Labels and goto.
Out: Wednesday, January 13, 2010. Due: Friday, January 15, 2010.
Problem 3.1
Code profiling and registers. In this problem, we will ... reproduced at the end of this problem set (and can be
downloaded from Stellar). The main() function handles the code profiling, calling fibonacci()
many times and measuring the average processor time....
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Bài 8. Postal and telecommunications service
Ngày tải lên :
24/06/2013, 01:27
... information search, and
entertainment. Businesses use the Internet for
advertising and electronic commerce.
Organizations use the Internet for
teleconferencing and telecommuting. Media and
entertaining ... experiences and opinions so
quickly and easily if there weren’t Internet
connectivity. The Internet has really made big changes
in the way many people live and work.
D
c) Read the text again and ... thing
every body does know is that more and more people
are 2. ……… the Internet for different purposes.
Businesses use the Internet for advertising and
electronic 3…………
number
using
commerce
telecommuting...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P4 ppt
Ngày tải lên :
13/12/2013, 01:15
... defined over {t, f, u} (t represents true, f represents false, and u
stands for uncertain). Let m
g
= {L
i
: l
i
} and m
g′
= {M
i
: m
i
} and form a matrix
where Equation (14.12)
Then, the truth ... reader to the use of fuzzy set theory
for engineering monitoring and diagnosis. The presented method is applicable to almost all engineering
processes and systems, simple or complicated. There ... of this handbook.
References
Baldwin, J. F., Martin, T. P., and Pilsworth, B. W., 1995, Firl — Fuzzy and Evidential Reasoning in Artificial
Intelligence, Research Studies Press, England.
Bezdek,...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P3 ppt
Ngày tải lên :
13/12/2013, 01:15
... attribute A1,A2,A3,…, An,
AND there is manufacturing time T and cost M,
THEN process P of capabilities C1,C2,C3,…,Cm,
AND processing time Tp and cost Mp is used.
where Tp T and Mp M.ՅՅ
© 2001 by ... such as dimensions,
tolerances and surface roughness, the feature position and orientation, and the feature relations (formed
by physical interactions and dimensions and geometric tolerances), manufacturing ... as machine and tool capacity, production volume, and overhead cost.
With its function, capability, and efficiency specified as above, a manufacturing process can be defined,
selected, and evaluated...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P2 pptx
Ngày tải lên :
13/12/2013, 01:15
... steadily granted and
outrun the competitors standards; and due time and delivery might require sudden acceleration of the
production scheduling to win new orders. Batch size and artefact quality ... physical resources (processing and transfer units, parts, and
pallets) and data on logic resources (monitoring, decision, or command units). The modules are detailed,
modified, and instanciated to suit ... dispensers, atomisers, and triggers for home preparations; lips, spouts,
and nozzles for ready-drinkable cheer packs and cans; nonrefillable closures for bottles and decanters;
and similar nonreusable...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P1 docx
Ngày tải lên :
13/12/2013, 01:15
... products p
1
and p
2
, representing 509 and 640 part types. Thus actual job type and order entity
sets are P ϭ {p
1
, p
2
} and O ϭ {o
1
} with BEL-P(p
) ϭ o
1
for
ϭ 1, 2.
Due dates and product ... (e
4
-, and e
5
-
type events) and sending to the job flow manager the messages about failure and repair occurrences
for servers, for AGV trucks and for transport subsystems (e
1
-, e
2
-, and e
3
-type ... (JHM) and the co-
operating machines (COM) functions establish the following relationships between the entity sets V and
M
Here JHM(v
␣
) and COM(v
␣
) specify respectively the first and the...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P8 pptx
Ngày tải lên :
22/12/2013, 21:18
... 0 and σ
o
= 1 and δ = 0, ±1, ±2, ±3, and ±4.
These observations were fed directly to the network and trained by a standard backpropagation algorithm
to achieve a desired output between –1 and ... Acosta and Pignatiello’s
(1996) CUSUM scheme and EWMA charts, as shown in Tables 18.6(a) and (b), to Acosta and Pignatiello’s
(1996) EWMA chart which adopts Roberts’ (1959) EWMA for mean and Wortham’s ... 18.1 and ρ is the variance shift magnitude in σ as defined
in Table 18.3.
TABLE 18.6 Comparisons between C-NN and Acosta’s CUSUM and EWMA
(a) Comparisons between C-NN and Acosta’s CUSUM and EWMA...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P7 ppt
Ngày tải lên :
22/12/2013, 21:18
... is relatively standard, and consists of three operations [Liepins and Hilliard,
1989]: (i) evaluation of individual fitness, (ii) formation of a gene pool, and (iii) recombination and
mutation, ... by allowing 50 individuals per generation and 250 generations for the complete search.
TABLE 17.6 Estimated Standard and Optimized Responses
Response Standard Recipe Optimized Recipe % Change
Rp ... array approaches, and (ii) traditional factorial and fractional factorial design
approaches.
The orthogonal array approaches are promoted extensively by Taguchi and his followers, and the
traditional...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P6 ppt
Ngày tải lên :
22/12/2013, 21:18
... weight matrix
W_xh
and
W_hy
, and the bias vector
θ_
h
and
θ_
y
.
Step 3: Load the input vector
X
of a testing example.
Step 4: Calculate and infer the actual output ... by end milling. Armarego and Deshpande [1989] presented one more milling process geometry
model that incorporates cutter runout to predict cutting forces.
Sutherland and Babin [1985] demonstrated ... machined
surfaces exhibit interrelated characteristics of both random and deterministic components. Zhang and
Kapoor [1991] demonstrated the effect of random vibrations on surface roughness in the turning...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P5 ppt
Ngày tải lên :
22/12/2013, 21:18
... and the estimated value of the spindle and
feed current, namely, S
i
and F
i
(i = 1, 2, . . . , 6) are outputted. Second, the spindle and feed current
detected are put into the logarithm, and ... Rodriguez, O., and Uragun, B., 1993, Monitoring Drill Conditions with
Wavelet Based Encoding and Neural Network, Int. J. Mach. Tools and Manuf., vol. 33, no. 4,
pp. 559-575.
39. Wu, Y. and Du, R. ... a
ssj
is
iij
,,,
1
1
axw
ssj1
=∧
()
, ;
xwa
ssj
≥=,
2
1,
∂
∂
=
O
w
j
sj
∆
if and then
if and then
if and then
if and then
xw x xw x
xw x xw x
xw w xw
xw w xw
ssj s
is
iij s
ssj s
is
iij s
ssj...
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Tài liệu Industrial Power Engineering and Applications Handbook P2 docx
Ngày tải lên :
19/01/2014, 23:20
... Figures 1.21 and 1.22.
1
.I7
Single-phase motors
Application
-
Domestic appliances
-
Small machine tools
-
Industrial and domestic fans, pumps,
polishers, grinders, compressors and
blowers ...
1.26(b)
Shaded pole
1-g
motor [(Courtesy: AUE (GE Motors)]
1/26
Industrial Power Engineering and Applications Handbook
Figure
1.20(a)
Totally enclosed tube ventilated (TETV) squirrel cage motor ... circuit (Cooling system
IC5AIA1) (Courtesy:
NGEF
Ltd)
1/24
Industrial Power Engineering and Applications Handbook
Table
1.11
Types
of
Protection against
ingress
of
water
Second
Type...
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Tài liệu Industrial Power Engineering and Applications Handbook P1 docx
Ngày tải lên :
19/01/2014, 23:20
...
Figure
1.6
Voltage and frequency limits
for
motors
NEWNES POWER ENGINEERING SERIES
Industrial Power
Engineering and
Applications Handbook
Theory, performance and constructional features ... useful and up to date.
K.C.
Agrawal
111
8
Industrial
Power
Engineering and Applications Handbook
Table
1.9
Approximate
values
of
efficiency and power factor
at
three-quarter and
half ...
electronics, and related areas of electricity generation, distribution and utilization. The series
is
designed
for
a
wide audience of enginccrs, academics, and postgraduate students, and...
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Tài liệu INTRODUCTION TO ELECTRONIC ENGINEERING- P1 docx
Ngày tải lên :
26/01/2014, 09:20
...
Features and standards. In today’s electronic engineering, two branches are distinguished − low-
signal electronics that belongs to the field of signal processing or radio-electronics, and power
electronics ... features of electronic devices
and circuits are as follows:
- breakdown and cutoff voltages and currents;
- instantaneous and on-state voltages, currents, and powers;
- turn-on and turn-off ... supplies and energy conversion. Modern electronic
technologies include the manufacture of low-signal electronic chips, printed circuits, and logic arrays,
as well as power electronic devices, and...
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Tài liệu INTRODUCTION TO ELECTRONIC ENGINEERING- P2 pptx
Ngày tải lên :
26/01/2014, 09:20
...
between 0,7 and 2 V.
NNE and Pharmaplan have joined forces to create
NNE Pharmaplan, the world’s leading engineering
and consultancy company focused entirely on the
pharma and biotech industries.
Inés ... world’s leading engineering and consultancy company
focused entirely on the pharma and biotech industries. We employ more than
1500 people worldwide and offer global reach and local knowledge ... to Electronic Engineering
23
Semiconductor Devices
The pair of positive and negative ions of the junction is called a dipole. In the dipole, the ions are fixed
in the crystal structure and...
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