Rapid prototyping and manufacturing benchmarking

... for benchmarking Benchmarking is the search for industry best practices that lead to superior performance.” - R.C.Camp, 1989 Rapid Prototyping and Manufacturing (RP&M) is a relatively new manufacturing ... essence of benchmarking is the process of identifying the highest standards of excellence for products, services and processes, and then making the improvements necessary...

Ngày tải lên: 16/09/2015, 17:12

... Rapid Design and Prototyping of DSP Systems 78. 1 78. 2 78. 3 78. 4 Introduction Survey of Previous Research Infrastructure Criteria for the Design Flow The Executable ... Gajski, D and Vahid, F., Specification and design of embedded hardware-software systems, IEEE Design & Test of Computers, pp 53-67, Spring 1995 [14] DeBardelaben, J and Madisetti, V., Har...

Ngày tải lên: 25/12/2013, 06:16

... in rapid prototyping of 3G/4G systems The rest of the paper is organized as follows We first describe the model of 3G/4G wireless systems using MIMO technologies and identify the prototyping and ... multiple-antenna systems, VLSI design and prototyping, and DSP and VLSI architectures for wireless systems, 3GPP long-term evolution (LTE), OFDM, WiMax He i...

Ngày tải lên: 22/06/2014, 22:20

... 173-178 6- 12 41.4-55 .2 3-10 1.4 -2. 8 55-60 12- 16 1 .27 1.34 1 .25 27 .6-41.4 3-10 1.4 -2. 8 60-65 >24 1 .24 55 .2- 82. 7 5-10 2. 8-4 .2 PGA 185 -22 5 25 -65 6- 12 1.53 >68.9 15 -20 >6.9 PCL 58-68 - 70 >24 1.11 20 .7-34.5 ... rates of all such polymers, the structural stability of PCL permits the study of fabrication and characterization as a tissue engineering scaffold...

Ngày tải lên: 14/09/2015, 10:20

... 64. 3 51500 1.6 55.3 39. 64 PCL-PEG Raw 63.5 33000 1.6 62 44 .44 PCL-PEG Scaffold 65.3 33600 1.7 61.8 44 .30 PCL-PEG-PCL Raw 64. 4 30000 1.8 48 34. 41 PCL-PEG-PCL Scaffold 65.6 31700 1.7 47 .2 33. 84 ... (bar) Figure 4. 11: Influence of extrusion pressure on RW and porosity of the scaffolds fabricated with lay-down pattern of 0/90 and nozzle size of 500 µm 113 Chapter Fou...

Ngày tải lên: 14/09/2015, 10:23

... Chapter Five: Conclusions and Recommendations 5. 1 Conclusions A desktop robot based rapid prototyping (DRBRP) melt extrusion system was designed and developed in house ... filament diameter and consequently, the pore size and porosity A range of filament diameter (3 75 to 623 µm) and porosity ( 45 to 75% ) was obtained by varying the process parameters In spite of...

Ngày tải lên: 14/09/2015, 10:23

... accuracy of up to 2°C and the feed rate had the deposition speed accuracy of up to 3mm/min Material Loading Port Teflon Insulator Figure 3. 2: Four-axes desktop robot-based rapid prototyping system 3. 4.2 ... (0/90°, 0/60/120° and 0 /30 /60/90/120/150°) as shown in Figure 3. 4 using appropriate positioning of the robotic control system The lay-down patterns of 0/90°, 0/60...

Ngày tải lên: 14/09/2015, 11:12

... those of the tissues at the site of implantation e) Be easily fabricated to form a variety of shapes and sizes In the early days of tissue engineering, FDA approved devices and implants made of ... number of materials as well as scaffold design have been experimentally and/ or clinically studied For the treatment of tissues/organs in malfunction, one of the challenge...

Ngày tải lên: 14/09/2015, 11:12

... 85 VI LIST OF FIGURES Fig 1.1: Example of direct RP model construction from cloud data Fig 1.2: Point cloud data modelling for RP fabrication Fig 2.1: Point cloud slicing and projecting ... model (between the RP model and the cloud data) comes from three sources: (1) shape error between the cloud data and the surface model, (2) shape error between the...

Ngày tải lên: 26/09/2015, 11:07

Ngày tải lên: 13/12/2013, 01:15

... P1, P2, P3, …, PTϪ1 ) ␧ Y } { ␮ C1 ( P )⌳ ␮ C2 ( P )⌳ ␮ C3 ( P )⌳…, ␮ CTϪ1 ( P TϪ1 )⌳ ␮ BT ( S T )} This can be written as ␮ D ( Pmax 1, Pmax 2, Pmax ,…, Pmax TϪ1 ) ϭ Max { ( P1, P2, P3, …, PTϪ2 ... find out the optimal decisions in set D, i.e., a series of optimal manufacturing processes P1, P2, P3, …,PTϪ1, that has the maximum value of fuzzy membership ␮D Multi-Level Fuzzy Decision Making...

Ngày tải lên: 13/12/2013, 01:15

Ngày tải lên: 13/12/2013, 01:15

... in execution, to manufacture two final products p1 and p2, representing 509 and 640 part types Thus actual job type and order entity sets are P ϭ {p1, p2} and O ϭ {o1} with BEL-P(p␲) ϭ o1 for ␲ ... Job Attributes in the Current State Jobs Attributes j1 j2 j3 j4 JT J-STATUS p1 Waiting for destination p2 Carried p1 Running p2 Ready ROS LOS HOS CAR ROT BA SCI SAT BAT v1,2 v1,1 b10 – v2,2 v2...

Ngày tải lên: 13/12/2013, 01:15