Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"moire pattern"”.
-
Analysis and Reduction of Moire Patterns in Scanned Halftone Pictures
… a comprehensive theory for the formation of a moire pattern in a sampled halftone image. We explore techniques for restoring a sampled halftone image with a moire pattern and techniques for preventing a moire pattern when a halftone picture is scanned. Specifically, we study the frequency, …
-
Incoherent projection Moire contour sensing with coherent processing for large structures
… paper presents the theory and results of three Moire methods 1) the incoherent projection Moire method, 2) the electronic phase detection method, and 3) the fringe multiplication method. It is proposed that these three methods be used together in a system to measure out-of-plane displacements of …
-
Extension of Moire interferometry into the ultra-high sensitivity domain
… per fringe contour, which corresponds to that of moire with 20,000 lines per mm, in combination with spatial resolution of the optical microscope (2-5 μm). The objective was achieved by the following developments. First, the basic sensitivity of moire interferometry was increased beyond the …
-
Electronic properties and device applications of rotationally controlled van der Waals heterostructures
… between different layers, we demonstrate tunable moiré crystals in small-twist-angle bilayer graphene. A comprehensive electron transport study is conducted, and the data are compared with SPM results. We observe transport gaps at ±8 electrons per moiré unit cell, along with a conductivity …
-
Dislocation structures in materials using grand-canonical minima hopping energy minimization
… and an investigation of moir\'e patterns in 2D materials. Following a description of the underlying Minima Hopping method (MH), the procedure behind the GCMH method is presented along with a case study on fullerene structures. Next, the importance of the atomistic representation …