Illustration and validation

This paper concerns a problem of finite-time stability for a class of linear singular large-scale systems with delays. Based on matrix transformations, Lyapunov function method combined with new estimation techniques, we derive sufficient conditions for solving the finite-time stability of the system. A numerical example is given to illustrate the validity and effectiveness of the theoretical results.

11p vijaychest 24-04-2024 7 2   Download

In this paper, we propose a median-based machinelearning approach and algorithm to predict the parameter of the Bernoulli distribution. We illustrate the proposed median approach by generating various sample datasets from Bernoulli population distribution to validate the accuracy of the proposed approach.

12p redemption 20-12-2021 13 0   Download

This paper concerns with a problem of supoptimal finite-time control for a class of linear large-scale delay systems. The system under consideration is subjected to the state and control delays interacted between subsystems. Based on improved LMI approach combining with new estimation techniques, we derive sufficient conditions for solving H∞ finite-time control and guaranteed cost control of the system. A numerical example is given to illustrate the validity and effectiveness of the theoretical results.

15p spiritedaway36 25-11-2021 13 1   Download

This paper presents crack identification in multiple cracked beams made of functionally graded material (FGM) by using stationary wavelet transform (SWT) of mode shapes and taking into account influence of Gaussian noise. Mode shapes are obtained from multiple cracked FGM beam element and spring model of cracks. The theoretical development was illustrated and validated by numerical examples. The investigated results show that crack identification method by using SWT of mode shapes is efficient and realizable.

22p nguaconbaynhay11 07-04-2021 13 2   Download

This study focused on these three potential colorants with a similar color to natural meat, and the analytical method developed by our research group in [5] was validated on a new sample matrix, grilled meat (pork on the stick, illustrated in Figure 1).

10p nguaconbaynhay10 18-01-2021 9 1   Download

In this paper, we discuss a new algorithm to find a non-zero real root of the transcendental equations using series expansion. This proposed method is based on the inverse series expansion, which gives a good approximate root than some other existing methods. The implementation of this algorithm is presented in Matlab and Maple. Sample numerical examples are presented to illustrate and validate the efficiency of the proposed algorithm. The method will help to implement in the commercial package for finding a real root of a given transcendental equation.

9p trinhthamhodang9 10-12-2020 17 1   Download

The framework as it relates to the validation of language tests in general is presented and the model is then applied to two tests of spoken English by way of illustration. Although examples are included, the main aim is to provide a theoretical justification for a focus on comprehensibility and the inclusion of linguistic variation in the assessment of ELF and to present a validation framework that can be applied by test developers and test users.

16p nguathienthan9 08-12-2020 13 2   Download

In this work, the program so-called “Multiple Precision Computation” (MPC) proposed by Smith in 2003 is introduced and embedded into conventional codes for considerably improving the precision of numerical calculations. The procedure is evaluated for improvement and validated by using the comparison between calculations incorporating MPC and those using regular double-precision declarations and results obtained with well-known software Mathematica, respectively. Several representatively fundamental problems are taken into account for illustration.

6p nguaconbaynhay9 03-12-2020 8 0   Download

This article highlights a robust adaptive tracking control approach for a nonholonomic wheeled mobile robot by which the bad problems of both unknown slippage and uncertainties are dealt with. The radial basis function neural network in this proposed controller assists unknown smooth nonlinear dynamic functions to be approximated. Furthermore, a technical solution is also carried out to avoid actuator saturation. The validity and efficiency of this novel controller, finally, are illustrated via comparative simulation results.

18p nguyenanhtuan_qb 18-06-2020 27 2   Download

The selection of optimal portfolios is the central problem of financial investment decisions. Mathematically speaking, portfolio selection refers to the formulation of an objective function that determines the weights of the portfolio invested in each asset as to maximize return and minimize risk. This paper applies the method of genetic algorithm (GA) to obtain an optimal portfolio selection. However, the GA parameters are of great importance in the procedure of convergence of this algorithm towards the optimal solution such as crossover.

12p nguyenminhlong19 21-04-2020 23 1   Download

Credit risk impedes the growth of bank’s performance and position which is largely influenced by a number of factors that should be taken consideration and minimized. The objective of the study is to illustrate the inclusion of valid causes of selecting best model with regard to statistical significance. The study conducted on panel data consisting of 322 observations with 22 commercial banks and 15 consecutive years. The study finds that profitability, capital and bank size are inversely associated with bank credit risk whereas net interest margin and inefficiency have positive effect.

23p trinhthamhodang2 19-01-2020 37 3   Download

FinTech have revolutionized applications and redefined the digital economy in recent years. However, there remains a gap in the academic literature regarding core factors that influence the development of internet finance. This research proposes an internet finance development evaluation model with 8 dimensions, namely, Commercial Benefit, Convenience, Trust, Cost, User Profile, Substitution, Competitiveness, and Regulation, based on literature survey.

26p chauchaungayxua2 19-01-2020 31 3   Download

This study proposes therefore to apply the transmissibility functions for modal identification of ambient vibration testing and investigates its performance in presence of harmonics. Numerical examples and an experimental test are used for illustration and validation.

14p elandorr 05-12-2019 22 0   Download

In this paper, the Legendre spectral-collocation method was applied to obtain approximate solutions for some types of fractional optimal control problems (FOCPs). The fractional derivative was described in the Caputo sense. Two different approaches were presented, in the first approach, necessary optimality conditions in terms of the associated Hamiltonian were approximated. In the second approach, the state equation was discretized first using the trapezoidal rule for the numerical integration followed by the Rayleigh–Ritz method to evaluate both the state and control variables.

11p trinhthamhodang1 16-11-2019 18 0   Download

Eye movement evaluation is vital for diagnosis of various ophthalmological and neurological disorders. The present study proposes a novel, noninvasive, wearable device to acquire the eye movement based on a Fiber Bragg Grating (FBG) Sensor. The proposed Fiber Bragg Grating Eye Tracker (FBGET) can capture the displacement of the eyeball during its movements in the form of strain variations on a cantilever.

10p caygaocaolon1 13-11-2019 28 2   Download

Faculty of Dentistry of the University of Hong Kong has introduced innovative blended problem-based learning (PBL) with the aid of 3D electronic models (e-models) to Bachelor of Dental Surgery (BDS) curriculum. Statistical results of pre- and post-semester questionnaire surveys illustrated compatibility of e-models in PBL settings. The students’ importance ratings of two objectives “Complete assigned tasks on time” and “Active listener”, and twenty-two facilitator evaluation items including critical thinking and group problemsolving skills had increased significantly.

16p kequaidan1 05-11-2019 16 1   Download

The concentration of practical knowledge and experiential knowledge in the form of collective intelligence (the wisdom of the crowd) is of interest in the area of skill transfer. Previous studies have confirmed that collective intelligence can be formed through the utilization of video annotation systems where knowledge that is recalled while watching videos of work tasks can be assigned in the form of a comment.

17p kequaidan1 05-11-2019 27 1   Download

The genera Alloplitis Nixon, 1965 and Protapanteles Ashmead, 1898 (subgenus Nyereria Mason, 1981) (Braconidae: Microgastrinae) are newly recorded for Vietnamese fauna. Three valid species of the genus Alloplitis Nixon, 1965 and one species of the subgenus Nyereria Mason [15] are currently recognized from the Oriental region, and in this paper one species is newly recorded for the fauna of Vietnam, Alloplitis guapo Nixon, 1965 and five new species are described and illustrated from Vietnam, Alloplitis albiventris Long & van Achterberg, sp. n., A. laevigaster Long & van Achterberg, sp. n., A.

10p nguaconbaynhay 24-10-2019 17 0   Download

Nowadays, new information technologies produce new methodological approaches attempting to extract not just valid and reliable information, but more generally a particular technical and professional expertise to support the decision making. The article ends with an application that shows the methodology developed and gives some results illustrated by figures.

9p vioishi2711 01-07-2019 9 0   Download

A brief overview of the model followed by results from simulations performed to validate the model is presented. Simulations illustrate stable behavior of the reactor dynamics and temperature feedback effects to reactivity excursions. Stable and smooth changes at various nodal temperatures are also observed. Control strategies for molten-salt reactor operation are discussed, followed by an illustration of the open-loop load-following capability of the molten-salt breeder reactor system.

9p minhxaminhyeu4 26-06-2019 18 0   Download