11 fpga compiler ii fpga express design process 14

Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 1 pptx

Ngày tải lên : 11/08/2014, 02:22

... 277 D Designing with metals, ceramics, polymers and composites 27 Design with materials 289 the design- limiting properties of metals, ceramics, polymers and composites; design methodology viii Contents ... polymers and composites; design methodology viii Contents 28 Case studies Designing Designing Designing Designing in design with metals: conveyor drums for an iron ore terminal with ceramics: ... microstructures and processing of materials (metals, ceramics, polymers and composites) and shows how these are related to the properties required in engineering design It is designed to follow...

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FPGA BASED DESIGN AND IMPLEMENTATION FOR OPTICAL TRANSPORT NETWORKS

Ngày tải lên : 22/11/2015, 23:35

... Verilog HDL Design Entry Altera Quartus II 8.0 Some software tools are used to assist the design process and downloading process into Altera FPGA chip Stratix II EP2S180, while AT FPGA board version ... Quartus II Design Entry Simulation Design Contraints Synthesis Place and Route Design Library Download Figure 4.2: Design flow Design Entry The design engineers must decide at this point which design ... language in the design entry software The design is then implemented in the Stratix II EP2S180F1020C5 FPGA chip, and AT FPGA version 1.0 development board Several tools involved in the process of...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 2 pot

Ngày tải lên : 11/08/2014, 02:22

... requirements: (i) mass (Pb) phase + mass (Sn) phase = mass alloy; (ii) mass lead in (Pb) + mass lead in (Sn) = mass lead in alloy; (iii) mass tin in (Pb) + mass tin in (Sn) = mass tin in alloy (a) ... Commercial zone reﬁning processes may therefore involve a large number of passes done one after the other (Fig 4.7) This obviously adds a lot to the cost of the pure material, but the process can be speeded ... Introduction Whenever you have to report on the structure of an alloy – because it is a possible design choice, or because it has mysteriously failed in service – the ﬁrst thing you should is reach...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 3 ppsx

Ngày tải lên : 11/08/2014, 02:22

... because each process is pushed along by a driving force Now, the mere fact of having a driving force does not guarantee that a change will occur There must also be a route that the process can ... can only this if the route for the process – atomic diffusion – is fast enough At high temperature, with plenty of thermal energy for diffusion, the doping process will be fast; but at low temperature ... we show that driving forces can be expressed in terms of simple thermodynamic quantities, and we illustrate this by calculating driving forces for some typical processes like solidiﬁcation, changes...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 4 docx

Ngày tải lên : 11/08/2014, 02:22

... seconds (ii) The fastest rate of transformation occurs at 550°C At this temperature, transformation of the austenite is 1% complete after second and is 99% complete after 10 seconds (iii) At 360°C, ... water-quenched H(GPa) s TS(MPa) ef (%) 600 10 Limited by brittleness ≈0 Kinetics of structural change: III – displacive transformations 77 Fig 8.1 The diffusive f.c.c → b.c.c transformation in iron The ... the maximum ﬂuctuation that we can expect in practice) Nucleation Kinetics of structural change: III – displacive transformations 79 Fig 8.3 The diffusive f.c.c → b.c.c transformation in iron:...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 7 doc

Ngày tải lên : 11/08/2014, 02:22

... economies Joining Many of the processes used to join one metal to another are based on casting We have already looked at fusion welding (Fig 13.6) The most widely used welding process is arc welding: ... tubes But modiﬁcations of conventional processes can give useful economies too In examining a production line it is always worth questioning whether a change in processing method could be introduced ... 1996 Further reading S Kalpakjian, Manufacturing Processes for Engineering Materials, Addison-Wesley, 1984 J A Schey, Introduction to Manufacturing Processes, McGraw-Hill Kogakusha, 1977 J M Alexander...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 8 ppsx

Ngày tải lên : 11/08/2014, 02:22

... component, then it is possible to design so that this acceptable risk is met This chapter explains why ceramics have this dispersion of strength; and shows how to design components so they have ... about cake-induced slow crack growth? In this case study, we analyse safe design with glass under load Consider the design of a glass window for a vacuum chamber (Fig 18.6) It is a circular glass ... Table 18.1 To use these data to calculate a safe design load, we must assign an acceptable failure probability to the window, and decide on its design life Failure could cause injury, so the window...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 9 ppsx

Ngày tải lên : 11/08/2014, 02:22

... E/20 This means that design based on general yield (plastic design) gives large elastic deﬂections, much larger than in metals and ceramics The excessive “give” of a poorly designed polymer component ... newer materials without rethinking the design Polymers are less stiff, less strong and less tough than most metals, so the new component requires careful redesign Composites, it is true, are stiff ... celluloid and cellophane out of it But the vast surplus of lignin left from wood processing, or available in straw, cannot be processed to give a useful polymer If it could, it Polymers 223 Table 21.2...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 10 potx

Ngày tải lên : 11/08/2014, 02:22

... the other may be design- limiting And both, in polymers, have complicated origins, which we will now explain Stiffness: the time- and temperature-dependent modulus Much engineering design – particularly ... more So while we could treat metals and ceramics as having a constant stiffness and strength for design near ambient temperatures, we cannot so for polymers The mechanical state of a polymer depends ... strength of polymers in more detail, seeking the criteria which must be satisﬁed for good mechanical design Further reading D C Bassett, Principles of Polymer Morphology, Cambridge University Press,...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 11 pot

Ngày tải lên : 11/08/2014, 02:22

... energy but the foam is damaged in the process Materials that can be engineered The materials described in this chapter differ from most others available to the designer in that their properties can ... thus of properties can be designed-in Because of this direct control 276 Engineering Materials over properties, both sorts of composites offer special opportunities for designing weight-optimal ... Examples of this sort of design can be found in the books listed below Further reading M R Piggott, Load Bearing Fibre Composites, Pergamon Press, 1980 A F Johnson, Engineering Design Properties of...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 12 ppsx

Ngày tải lên : 11/08/2014, 02:22

... Design with materials 289 Chapter 27 Design with materials Introduction Design is an iterative process You start with the deﬁnition of a function ... construction; the designs we know evolved from these failures Most ceramic design is like that Only recently, and because of more demanding structural applications, have design methods evolved In designing ... analysis) in good design But a design methodology can be formulated, and when followed, it will lead to a practical solution to the design problem Figure 27.1 summarises the methodology for designing...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 13 pdf

Ngày tải lên : 11/08/2014, 02:22

... and, using eqn (28.33), we can then show that d = 0.66d w Conclusions This design study has shown that it is possible to design a sectional composite that will reproduce both the vibrational frequencies ... high-quality cardboard is glued between two identical layers of CFRP (Fig 28.22) The philosophy of this design modiﬁcation is to replace some CFRP by a much lighter material in those regions that contribute ... Sandwich-type sectional composites give a much-improved stiffness-to-mass ratio Case studies in design 319 In order to formulate the criterion for frequency matching we can make the very reasonable...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 14 ppsx

Ngày tải lên : 11/08/2014, 02:22

... (see Fig A1.22) Fig A1.22 2.7 Ice VI at the core, ice II nearer the surface, ice I at the surface, possibly a thin shell of ice V between ice II and ice VI 2.8 (a) Liquid plus lead-rich solid at ... α-iron Use the p–T phase diagram for iron to deduce the approximate magnitude of the pressure wave Express the result in atmospheres (see Fig A1.49) Fig A1.49 4.2 Your ancient granny dies and leaves ... Constitution of Granny’s Urn 4.3 Describe, using the copper–nickel (“monel”) system as an example, the process of zone-reﬁning (Figure A1.51 shows a system with complete solid solubility.) How many phases...

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Engineering Materials Vol II (microstructures_ processing_ design) 2nd ed. - M. Ashby_ D. Jones (1999) WW Part 15 doc

Ngày tải lên : 11/08/2014, 02:22

... 352 Density of ceramics and glasses 164 foams 272 metals 12 polymers 224 woods 278 Design- limiting properties 289 Design methodology 291, 292 Diamond 164 Die casting 145 Differential thermal analysis ... 162, 174 Vulcanisation 247, 257 Weibull statistics 185 et seq Welding 136, 154, 303 Wheel design 303 Window design 190 Wood 277 et seq case study in 312 properties 280 structure 278 Work 46 Work ... 355 Availability 50 Bain strain 84 Bakelite 221 Beryllium 100 Binary alloy 25, 327, 336 Boiler design 133 Bone 164, 165 Borosilicate glass 162, 165 Boundaries 18 Boundary tension 22 Brass 7,...

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Engineering Materials Vol II (microstructures processing design) 2nd ed. - M. Ashby_ D. Jones (1999) Episode 2 potx

Ngày tải lên : 13/08/2014, 05:20

... requirements: (i) mass (Pb) phase + mass (Sn) phase = mass alloy; (ii) mass lead in (Pb) + mass lead in (Sn) = mass lead in alloy; (iii) mass tin in (Pb) + mass tin in (Sn) = mass tin in alloy (a) ... Commercial zone reﬁning processes may therefore involve a large number of passes done one after the other (Fig 4.7) This obviously adds a lot to the cost of the pure material, but the process can be speeded ... length of the zone decreases to zero Derive expressions for the variations of both CS and CL with distance x in this ﬁnal stage Explain whether or not these expressions are likely to remain valid...

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Engineering Materials Vol II (microstructures processing design) 2nd ed. - M. Ashby_ D. Jones (1999) Episode 4 pps

Ngày tải lên : 13/08/2014, 05:20

... seconds (ii) The fastest rate of transformation occurs at 550°C At this temperature, transformation of the austenite is 1% complete after second and is 99% complete after 10 seconds (iii) At 360°C, ... martensite transformation ﬁnishes is labelled MF (martensite ﬁnish) Kinetics of structural change: III – displacive transformations 85 Fig 8.11 The TTT diagram for a 0.8% carbon (eutectoid) steel ... 0.0722 nm) are smaller than those in f.c.c (diameter 0.104 nm) Kinetics of structural change: III – displacive transformations 87 Fig 8.13 Displacive transformations are geometrically reversible...

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Engineering Materials Vol II (microstructures processing design) 2nd ed. - M. Ashby_ D. Jones (1999) Episode 5 pps

Ngày tải lên : 13/08/2014, 05:20

... separates * The world’s ﬁrst iron bridge was put up in 1779 by the Quaker ironmaster Abraham Darby III Spanning the River Severn in Shropshire the bridge is still there; the local village is now ... by volume of a and Fe3C in pearlite Answers: α, 88.9%; Fe3C, 11.1% Steels: II – alloy steels 125 Chapter 12 Steels: II – alloy steels Introduction A small, but important, sector of the steel ... order to avoid distortion and cracking only the surface of the iron is heated to red heat (in a process called “induction hardening”) Some notes on the TTT diagram The C-curves of TTT diagrams...

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Engineering Materials Vol II (microstructures processing design) 2nd ed. - M. Ashby_ D. Jones (1999) Episode 6 pps

Ngày tải lên : 13/08/2014, 05:20

... temperatures to which the tube been heated at positions (i) and (ii) Explain the reasoning behind your answers Answers: (i) 800°C; (ii) 700°C 13.2 In 1962 a span of Kings Bridge (Melbourne, Australia) ... economies Joining Many of the processes used to join one metal to another are based on casting We have already looked at fusion welding (Fig 13.6) The most widely used welding process is arc welding: ... tubes But modiﬁcations of conventional processes can give useful economies too In examining a production line it is always worth questioning whether a change in processing method could be introduced...

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11 fpga compiler ii fpga express design process 14