Accuracy enhancement for high precision gantry stage

... ACCURACY ENHANCEMENT FOR HIGH PRECISION GANTRY STAGE TEO CHEK SING (B.Eng., NATIONAL UNIVERSITY OF SINGAPORE) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY NUS GRADUATE SCHOOL FOR ... enhance the accuracy of machine tool As encapsulated by the title of this thesis, Accuracy Enhancement for High Precision Gantry Stage, there are three parts to the d...

Ngày tải lên: 15/09/2015, 21:09

... developed a highly sensitive laser bending technique for adjusting the curvature of microcantilevers Such a technique is simple to implement, yet very useful for applications involving arrays of cantilevers ... distribution of the microcantilever after laser bending (laser pulse energy 0.32 ␮J) FIG Schematic experimental setup of the laser bending system The sampl...

Ngày tải lên: 06/05/2014, 08:55

... EOT = ε SiO T ε high − k high − k , phy (2-3) where EOT is the Equivalent Oxide Thickness of high- k dielectric, εSiO2 and high- k are the permittivity of SiO2 (3.9) and the high- k dielectrics, ... and Thigh -k, phy is the physical thickness of the high- k film In searching suitable high- κ dielectric materials for MIM capacitors, a simple criterion is h...

Ngày tải lên: 12/09/2015, 11:24

... better performance Here, a design methodology for designing a high performance lead compensators are proposed Lead and lag type compensators are one of the most popular compensator networks for a ... the controller design for a high precision servo mechanism An XY table powered by two DC servo motors was used as a test bed for the control algorithms Firstly,...

Ngày tải lên: 04/10/2015, 15:45

... High precision dynamic alignment and gap control for optical near- field nanolithography Xiaolei Wen School of Mechanical Engineering and Birck Nanotechnology Center, ... http://avspublications.org/jvstb/about/rights _and_ permissions 041601-4 Wen et al.: High precision dynamic alignment and gap control 041601-4 FIG Illustration of alignment using the...

Ngày tải lên: 06/05/2014, 08:53

... example is shown in Figure 13 CONCLUSIONS We presented a shape-from-shading method for oblique lighting with accuracy enhancement by light direction optimization Based on an application of the Jacobi ... stands for deformable model The first figure in each cell is for S = (5, 5, 7) for BEST and DM, while it is an average for (5, 5, Sz ), Sz = 1–5, for our method, a...

Ngày tải lên: 22/06/2014, 23:20

... Cite this article as: Wilbert et al., Semi-robotic degree of freedom positioning for intracranial high precision radiotherapy; first phantom and clinical results Radiation Oncology 2010, 5:42 ... 0. 06 ± 0.1 0. 06 ± 0.1 0.08 ± 0.1 0.08 ± 0.1 0. 06 ± 0.1 grey value match of CBCT2 with planning CT group mean error (M) root mean square of random errors (σ) Degre...

Ngày tải lên: 09/08/2014, 08:23

... Diagnostic accuracy of hyaluronan and type III procollagen amino-terminal peptide serum assays as markers of liver fibrosis in chronic viral hepatitis C evaluated by ROC curve analysis Clin Chem ... Absence of fibrosis (F0F1) (82% certainty) Presence of fibrosis (F2) (94% certainty) Absence of severe fibrosis (F0F1F2) (89% certainty) Presence of severe fibrosis (...

Ngày tải lên: 13/08/2014, 13:20

... its performance characteristics Followed by, the real- time compensation of the following error using the dual servo concept is verified (machines’ servo and secondary flexure mechanisms servo) ... capabilities of using the DTM are manyfolds, still its cost is sky-high To improve the surface integrity of machined components in DTM and to reduce the initial cost of mach...

Ngày tải lên: 10/09/2015, 09:04

... popular one In my thesis, I will focus on MLP neural networks only The major issues of present neural networks are flexibility and accuracy Most of neural networks are designed to work in a stable ... non-deterministic solutions, accuracy of neural networks is always an important problem and has a great room for improvement In order to improve the flexibility an...

Ngày tải lên: 06/10/2015, 21:06

... have a particular importance in the communication strategy of high-tech products 8.1 Communication for high-tech products The three main characteristics of a high-tech product—technology, rate ... preferred communication tools for B2B companies This underlines the role of a direct sales force, which is to be not only a distribution channel, but also 222 Communication...

Ngày tải lên: 24/10/2013, 07:20

... In the case of product technology, let us consider the example of a very common high-tech product: the cellular phone As is very often the case The Meaning of Marketing for High-Tech Firms The ... diverse as gene therapy, drug delivery and novel drug discovery techniques 16 The Meaning of Marketing for High-Tech Firms Finding New Use for a Techno...

Ngày tải lên: 24/10/2013, 07:20

... to optimize their data centers, improve network reliability and contain costs Worksheet: Analyzing Your Data Center Design and Layout The key to maintaining a high-performance data network is the ... within your data center? g g g g 100%; our data center is completely full of equipment and there is no room for any more 75 to 99%; our data center is heavily utilized, but we hav...

Ngày tải lên: 27/10/2013, 17:15