![]() ![]() Proposed control system are also guaranteed. The boundedness of AUV tracking errors and the stability of the Profoundly attenuate the effects of uncertainties and externalĭisturbances in the closed-loop system. To address these difficulties, a nonlinear sliding mode controller isĭesigned to approximate the nonlinear dynamics of AUV and Hydrodynamic drag, damping, and lift forces, Coriolis and centripetalįorces, gravity and buoyancy forces, as well as forces from thruster. Model is highly nonlinear because of many factors, such as This paper describes a sliding mode controller forĪutonomous underwater vehicles (AUVs). Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF The corrected Richardson constant was very closer to theoretical value of 26 Acm-2K-2. After barrier height inhomogeneities correction, by assuming a Gaussian distribution (GD) of the barrier heights, the Richardson constant and the mean barrier height were obtained as 23 Acm-2K-2 and 1.78eV, respectively. The apparent Richardson constant was found to be 2.1x10-9 Acm-2K-2 and mean barrier height of 0.19 eV. The values of ideality factor (n), zero-bias barrier height (φB0), flat barrier height (φBF) and series resistance (Rs) obtained from I-V-T measurements were found to be strongly temperature dependent while (φBo) increase, (n), (φBF) and (Rs) decrease with increasing temperature. The current-voltage (I-V) characteristics of Pd/n-GaN Schottky barrier were studied at temperatures over room temperature (300-470K). Neural Network (ANN) and Leave-One-Out Validation (LOOV) Have been developed using Linear Regression method (LR), Artificial The models for compressive strength prediction All the materials used haveīeen kept same throughout the study to get a perfect comparison of All theĬoncrete mixes have been studied in terms of compressive strength atħ days, 28 days, 90 days, and 365 days. The concrete mix designing has been done inĪccordance with Indian standard recommended guidelines. In all eighteen concrete mixes that have beenĭesigned, three were conventional concretes for three grades underĭiscussion and fifteen were HPC with fly ash with varying The mix designs studied were M30, M40 and M50 toĬompare the effect of fly ash addition on the properties of theseĬoncrete mixes. Increment) on compressive strength of high performance concrete hasīeen evaluated. The effect of varying proportions of fly ash (0% to 50% 10% With super plasticizer with the aim to develop some models suitableįor prediction of compressive strength of HPC mixes. The work reported through this paper is anĮxperimental work conducted on High Performance Concrete (HPC) ![]()
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