electronic engineering and telecommunications

Ngày tải lên: 22/05/2014, 07:13

Ngày tải lên: 22/06/2014, 11:20

... 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....

Ngày tải lên: 25/04/2013, 08:07

... 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...

Ngày tải lên: 24/06/2013, 01:27

Ngày tải lên: 12/12/2013, 22:03

... 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,...

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...

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...

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...

Ngày tải lên: 13/12/2013, 01:15

Ngày tải lên: 13/12/2013, 05:17

... 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...

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...

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...

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...

Ngày tải lên: 22/12/2013, 21:18

... 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...

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...

Ngày tải lên: 19/01/2014, 23:20

... 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...

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...

Ngày tải lên: 26/01/2014, 09:20

Ngày tải lên: 26/01/2014, 09:20