operating systems and environments
cadcamcim radhakrishnan subramanyan and raju
Ngày tải lên :
08/04/2014, 10:34
... 83 89 90 93 97 100 OPERATING SYSTEMS AND ENVIRONMENTS 103 5.1 5.2 5.3 5.4 5.5 INTRODUCTION OPERATING SYSTEM (OS) COMPARISON OF COMMANDS IN POPULAR OPERATING SYSTEMS UNIX - OPERATING SYSTEM ARCHITECTURE ... flexible manufacturing systems (FMS), Computer controlled robots, material handling systems, computer controlled assembly systems, flexibly automated inspection systems and so on vii Warehousing: ... CARDS 15.8 NETWORKING STANDARDS AND THEIR DEVELOPMENT 15.9 EXAMPLES OF NETWORK STANDARDS 15.10 ETHERNET 15.11 ISSUES IN INTER-SYSTEM COMMUNICATION 15.12 NETWORK OPERATING SYSTEMS 15.13 SYSTEM SECURITY...
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chemical process design computer aided case studies
Ngày tải lên :
01/04/2014, 10:41
... “I hear and I forget I see and I remember I and I understand.” Confucius Chemical process design today faces the challenge of sustainable technologies for manufacturing fuels, chemicals and various ... of the respective subsystems The heat and material balances built upon this structure supply the key elements for sizing the units and assessing capital and operation costs, and on this basis establish ... outstanding simulation technology And last but not the least we express our gratitude and love to our families, for continuous support and understanding January 2008 Alexandre C Dimian Costin Sorin...
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A framework of computer aided short run SPC planning
Ngày tải lên :
16/09/2015, 12:35
... variable control charts include: • Average and Range (X bar and R) Charts • Average and Standard Deviation (X bar and S) Charts • Individual and Moving Range (X and MR) Charts Control charts mentioned ... and easier to construct and manipulate The hybrid code structure is a mixture of the hierarchical and chain structures, and has advantages of both Most of existing classification and coding systems ... Introduction automated manufacturing systems, such as flexible manufacturing systems, have been extensively adopted Such products, manufacturing processes and production systems create problems for the...
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công nghệ Computer Aided Engineering (CAE)
Ngày tải lên :
27/04/2013, 20:25
... computer systems that analyze engineering designs Most CAD systems have a CAE component, but there are also independent CAE systems that can analyze designs produced by various CAD systems CAE systems...
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ME-430 Introduction to Computer Aided Design ARM BRACKET - Pro/ENGINEER Wildfire 2.0
Ngày tải lên :
27/10/2013, 17:15
... element The handle snaps to the reference and an offset value appears in the graphics window Pick this surface as placement surface 11 Drag the reference handles onto the right and top surfaces ... appropriate Sketcher Tools to create and dimension the section as shown below , , , , , Click Type in 40 for the depth of extrusion Click Click and select Standard Orientation CREATE BOTH SIDES ... pick TOP datum plane, and set Orientation to Top Then click the Sketch button Click the Close button in the References dialog box Click the small forward > icon to expand, and pick Draw a horizontal...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P4 ppt
Ngày tải lên :
13/12/2013, 01:15
... product defects and process/system malfunctions early, and hence, eliminate costly consequences They also help to diagnose the root causes of the problems in design and production and hence minimize ... are many commercial monitoring and diagnosis systems available In general, monitoring and diagnosis methods can be divided into two categories: a model-based method and a feature-based method The ... function defined over {t, f, u} (t represents true, f represents false, and u stands for uncertain) Let mg = {Li: li} and mg′ = {Mi: mi} and form a matrix {( } ) ( M = T Li / M j : li m j , where T Li...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P3 ppt
Ngày tải lên :
13/12/2013, 01:15
... group technology (GT) and the generative approach based on decision trees, decision tables, logic formulae, knowledge bases, and expert systems [Chang and Wysk, 1985], [Alting and Zhang, 1989], [Gupta, ... ever met such demands Most of the CAPP systems in use have not gained anticipated computing support and flexible planning functions and tools [Bhaskaran, 1990], [Larsen, 1993], [Zhao and Baines, 1994], ... practical demand How future CAPP systems could be equipped with new planning functions to meet with such a demand is a new challenging problem [Lee, Wysk, and Smith, 1995], [Zhao and Baines, 1996...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P2 pptx
Ngày tải lên :
13/12/2013, 01:15
... concurrent parts feeding systems and dedicated joining devices; and • assembly stand, namely, a workstation with piece placing and parts feeding fixtures, pick-andplace mechanisms, and joining units ... assembly stations with related parts and fixtures logistics and robotics; and • assembly cell: a servoed and fixtured posture, with appropriate feeding systems and one (or more) instrumental robots ... design, manufacturing, and finance systems To reach more comprehensive assessments, issues are stated by collecting and comparing properly standardised indices and by tracking and acknowledging properly...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P1 docx
Ngày tải lên :
13/12/2013, 01:15
... LOS(jk) and ROS(jh) ϭ ROS (jk) and JSTATUS(jh) ϭ Ready for assembling and SCI(jh) ϭ 0} and {for each w␦ ʦ W | w␦ ϭ w␣ and (w␦, w) ʦ A ᭚ WEI [(w␦, w)] jobs jh | BEL-P[LOS( jh)] ϭ w␦ and ... insertions/removals (e4-, and e5type events) and sending to the job flow manager the messages about failure and repair occurrences for servers, for AGV trucks and for transport subsystems (e1-, e2-, and e3-type ... control of flexible manufacturing systems, IEEE Trans Systems, Man and Cybernetics — Part A: Systems and Humans, vol 26, no 2, pp 190–202 [8] Fanti, M.P., Maione, G., and Turchiano, B., 1996, Digraph-theoretic...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P8 pptx
Ngày tải lên :
22/12/2013, 21:18
... µo = and σo = 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 The ... 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 ... Press LLC TABLE 18.5 Comparisons between C-NN and X and R Charts (Adapted from Ho and Chang, 1999, Table 1, p 1894.) (a) Comparisons between C-NN and X and R charts for mean shifts δa ρ C-NN (ARL)...
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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, ... surface models [May et al., 1991; Riley and Hanson, 1989; Jenkins et al., 1986] and neural network models [Himmel and May, 1993; Kim and May, 1994; Rietman and Lory, 1993] The next two sections ... Process Modeling and On-Line Parameter Design 17.5 Conclusion 17.1 Introduction Besides aggressively innovating and incorporating new materials and technologies into practical, effective, and timely...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P6 ppt
Ngày tải lên :
22/12/2013, 21:18
... produced 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 ... 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 ... parameters Step 2: Read the 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 Y (a) Calculate...
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Tài liệu Computer-Aided.Design.Engineering.and.Manufacturing P5 ppt
Ngày tải lên :
22/12/2013, 21:18
... < ∨ ( ∧ ( x , w ) ) then ∆ = w if x s < w sj and x s ≥ ∨ ∧ x i , w ij s if x s < w sj and x s s i≠ s if x s ≥ w sj and w sj if x s ≥ w sj and w sj and ©2001 CRC Press LLC i≠ s i ij i≠ s i i≠ s ... 15.33, and the estimated value of the spindle and feed current, namely, Si and Fi (i = 1, 2, , 6) are outputted Second, the spindle and feed current detected are put into the logarithm, and are ... powerful tools for controlling the complex systems operating under a known or unknown environment Fuzzy systems can easily be used to express approximate knowledge and to quickly implement a reaction,...
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Tài liệu Application of Genetic Algorithms and Simulated Annealing in Process Planning Optimization pptx
Ngày tải lên :
25/12/2013, 19:15
... randomly selected from M-c and M-e and assigned to OPT3 to replace M-a It is then found that M-a is also the current machine used by OPT1, OPT4, OPT5, and OPT2 Among these OPTs, OPT1, OPT4, and ... information (machines, tools, and all the cost indices) is described earlier and the required OPTs and their machine, tool, and TAD alternatives are shown in Table 9.2 and the PRs between the OPTs ... 9.2.2.2 Machine (M) and Cutter (T) Selection For each OPT, a machine and cutter can be selected from the available machined and cutters in the job shop, based on the geometry and accessibility...
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Tài liệu A Computer-Aided ppt
Ngày tải lên :
25/12/2013, 22:15
... ‘delta) (and (>= roughness 4) (cond ( (and (= tolerance 0.04)) t) ( (and (= tolerance 0.048)) t) ( (and (= tolerance 0.058)) t) ( (and (
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Tài liệu ME-430 INTRODUCTION TO COMPUTER AIDED DESIGNTORSIONAL ANALYSIS Using Pro/MECHANICA Pro/ENGINEER pptx
Ngày tải lên :
19/01/2014, 05:20
... for defining the load and since we will use Total Load at Point (TLAP) and Moment, the location does not matter Click on Datum Point Tool icon Pick on the surface (region), and locate the point ... procedure and select View Min 17 Click the Copy button 18 Enter the name as “displ” Enter the Title of Displacement Distribution Plot Click the Quantity tab, and change the type to Displacement, and ... Pick FRONT datum plane as sketching plane, and select Top then pick TOP datum plane in the graphics area Pick the necessary additional references, and use rectangle to sketch the following section...
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Tài liệu Thí nghiệm CAD (Computer-Aided Design) ppt
Ngày tải lên :
21/01/2014, 03:20
... end of switch % ve thi close all; figure('Color','w'); for k=1:m hold on r1=r*k; mau=[rand(1,1) rand(1,1) rand(1,1)]; h=polar(theta,r1); © TcAD - 2003 19 Giáo trình thí nghiệm CAD set(h,'color',mau,'LineWidth',2); ... thị: >>xlabel(‘Time’) >>ylabel(‘Amplitude’) >>title(‘y1=sinx.cos2x and y2=sin(x^2)’) >>legend(‘sinx.cos2x’,’sinx^2’) y1=sinx.cos2x and y2=sinx sinx.cos2x sinx Amplitude 0.5 -0.5 -1 Time Hình 1.1 ... điều chế giải điều chế tín hiệu liên tục (Analog Modulation and Demodulation) Điều chế biên độ sóng mang bị nén hai băng cạnh (Double-Sideband Suppressed Carrier Amplitude Modulation – DSB-SC): Phương...
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Tài liệu COMPUTER-AIDED DESIGN P1 ppt
Ngày tải lên :
23/01/2014, 07:20
... operations, and file management The operating system schedules and performs input/ output, allocates resources and memory space and provides monitoring and security functions It governs the execution and ... the context of the larger program 13.7.1 Operating Systems Operating systems have developed over the past 50 years for two main purposes First, operating systems attempt to schedule computational ... minicomputer systems, and on-line printers for minicomputer systems are capable of delivering between two and three thousand lines of text per minute Microcomputers, which include the personal computer and...
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Tài liệu COMPUTER-AIDED DESIGN P2 docx
Ngày tải lên :
23/01/2014, 07:20
... application that is run on the NT operating system 13.7.2 Graphical User Interface (GUI) and the X Window System DOS, UNIX, and other command-line operating systems have long been criticized ... in 2D or 3D, can be ambiguous and difficult to understand Because mechanical and other engineering designs often involve three-dimensional parts and systems, CAD systems that offer 3D representation ... almost every type of computer and operating system on the market A GUI is distinguished by its appearance and by the way an operator's actions and input options are handled There are over a dozen...
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Tài liệu A systematic computer-aided approach to cooling system optimal design in plastic injection molding docx
Ngày tải lên :
12/02/2014, 22:20
... the new best point x0, and set f ðx0 Þ ¼ f ðxk Þ and go to step (iv) Otherwise, generate a random number bA[0,1] and calculate the probability as START Set start point and control parameters ... zone but only the boundary surfaces of the mold and cooling channels Hence mesh data preparation is greatly simplified and less computing time and storage is needed for the same level of accuracy ... T Ã q dG, (6) G G where CP and TP are the coefficient and temperature at the boundary point P, respectively T* is the fundamental solution of the Laplace’s equation and can be easily verified in...
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