the sno2 films deposited from inorganic precursors via sol–gel dip coating method have been found to be highly sensitive to methanol and ethanol vapor. three dimensional nano-structure materials have attracted the attention of many researches because the possibility to apply them for near future devices in sensors, catalysis and energy related. the sensitivity and selectivity of sno2 (110) nano...

We present a numerical method for calculating inhomogeneous refractive index fields in rectangular gradient-index (GRIN) elements from measured boundary positions and slopes of a collection of rays that transit the medium. The inverse problem is reduced to a set of linear algebraic equations after approximating ray trajectories from the measured boundary values and is solved using a pseudo-inve...

  Objective(s): Recently, phthalimide derivatives were designed based on ameltolide and thalidomide as they possess a similar degree of anticonvulsant potency due to their phenytoin-like profile. The ability of phthalimide pharmacophore to interact with neuronal voltage-dependent sodium channels was studied in the batrachotoxin affinity assay. Therefore, in the present study, a series of 19 com...

objective(s): recently, phthalimide derivatives were designed based on ameltolide and thalidomide as they possess a similar degree of anticonvulsant potency due to their phenytoin-like profile. the ability of phthalimide pharmacophore to interact with neuronal voltage-dependent sodium channels was studied in the batrachotoxin affinity assay. therefore, in the present study, a series of 19 compo...

This study evaluates the steepest descent algorithm as a tool for root mean square (RMS) error optimization in geodetic reference systems to improve integrity of transformation. With an initial RMS estimate 0.01830m, negative gradient direction was applied through leading final 0.00051m. Using exact line search mode with one-point step size 0.1, we achieved minimum values less than sixty iterat...

With the Westerbork Synthesis Radio Telescope (WSRT), multi-frequency polarimetric images were taken of the diffuse radio synchrotron background in a ∼ 5◦×7◦ region centered on (l, b) = (161◦, 16◦) in the constellation of Auriga. The observations were done simultaneously in 5 frequency bands, from 341 MHz to 375 MHz, and have a resolution of ∼ 5.0′×5.0′ cosec δ. The polarized intensity P and po...

Following a study of the existing algorithms for image-based homing, and their strengths and weaknesses, a new, adaptive controller was designed. The controller achieves homing through gradient descent of the RMS surface by modelling C. Elegans chemotaxis with a first-order function. The controller parameters were evolved in a simulated environment, and were then tested and evaluated both in si...

A numerical model replicating the stick-slip contact of two elastically similar materials is presented in this paper. Based on Coulomb's law described partial-slip theory Ciavarella, adopts a complementary condition that facilitates design novel algorithm to separate stick and slip regions. Via comparison between simulation results analytical solutions, developed validated applied study role pl...