Fabrication of Y-Ba-Cu-O Superconducting Films on Cu Substrates by an Electrophoretic Deposition Technique

Abstract

RNA participates both in functional aspects of the cell and in gene regulation. The interactions of these molecules are mediated by their secondary structure which can be viewed as a planar circle graph with arcs for all the chemical bonds between pairs of bases in the RNA sequence. The problem of predicting RNA secondary structure, specifically the chemically most probable structure, has many useful and efficient algorithms. This leaves RNA folding, the problem of predicting the dynamic behavior of RNA structure over time, as the main open problem. RNA folding is important for functional understanding because some RNA molecules change secondary structure in response to interactions with the environment. The full RNA folding model on at most O(3 n ) secondary structures is the gold standard. We present a new subset approximation model for the full model, give methods to analyze its accuracy and discuss the relative merits of our model as compared with a pre-existing subset approximation. The main advantage of our model is that it generates Monte Carlo folding pathways with the same probabilities with which they are generated under the full model. The pre-existing subset approximation does not have this property.

Electrophoretic Deposition of Aluminum Nitride from Its Suspension in Acetylacetone Using Iodine as an Additive

“…e theoretical and experimental development of the technique has also been reviewed by Heavens [19]. Various reports have appeared in the literature on the application of the technique for ceramic coatings [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

YBa2Cu3O7−x dispersion in iodine acetone for electrophoretic deposition: Surface charging mechanism in a halogenated organic media

“…acetone [10,12,[19][20][21][22][23][24][25][26][27][28][29][30][31][32], isobutylmethylketone [11], propanol and butanol [31,32], acetone being the most used solvent. In acetone, a negative value of zeta potential for 0.01 g/l YBCO suspensions have been determined by Koura et al [20], while more concentrated suspensions promote a positive surface charge, leading to cathodic deposition [12, 21-35, 31, 32].…”

Electrophoretic Deposition of Silicon Carbide

“…Slip casting 1 and tape rolling 2 have been used for a long time, but these processes are limited to relatively simple shapes. More recently, electrophoretic deposition (EPD) of ceramic powders has demonstrated successful applications in the fields of superconducting coating production, [3][4][5][6] electronic device manufacture, [7][8][9] fuel cell creation, [10][11][12][13] and dense-material elaboration. 14,15 EPD is a two-step process.…”