A new operational matrix based on Bernoulli polynomials

In this research, the Bernoulli polynomials are introduced. The properties of these polynomials are employed to construct the operational matrices of integration together with the derivative and product. These properties are then utilized to transform the differential equation to a matrix equation which corresponds to a system of algebraic equations with unknown Bernoulli coefficients. This method can be used for many problems such as differential equations, integral equations and so on. Numerical examples show the method is computationally simple and also illustrate the efficiency and accuracy of the method

Proportional-integral-plus control applications of state-dependent parameter models

This paper considers proportional-integral-plus (PIP) control of non-linear systems defined by state-dependent parameter models, with particular emphasis on three practical demonstrators: a microclimate test chamber, a 1/5th-scale laboratory representation of an intelligent excavator, and a full-scale (commercial) vibrolance system used for ground improvement on a construction site. In each case, the system is represented using a quasi-linear state-dependent parameter (SDP) model structure, in which the parameters are functionally dependent on other variables in the system. The approach yields novel SDP-PIP control algorithms with improved performance and robustness in comparison with conventional linear PIP control. In particular, the new approach better handles the large disturbances and other non-linearities typical in the application areas considered

Resistance To Change Among First Line Managers In Multinational Organizations In Malaysia

Dramatic changes in organization structure and culture have become an essence that more and more individuals and organizations are recognizing the importance of the way that they can overcome the resistance to change

The effect of culture and organisational culture on administrative corruption

Copyright © 2019 Inderscience Enterprises Ltd. There is extensive literature on corruption, such as political and corporate corruption, some of which examines factors influencing administrative corruption. However, to the best of our knowledge, the multivariate influences of culture and organisational culture on administrative corruption have not been tested using an integrative approach. This paper attempts to fill the gap by building and testing a comprehensive model. We test a sample of 677 responses that reflect the prospective view of the public in Basra, Iraq, using the partial least squares structural equation modelling (PLS-SEM) approach. Our study finds that corrupt culture and weak organisational culture have direct effects on administrative corruption, while corrupt culture leads to weak organisational culture. The latter mediates the impact of corrupt culture on administrative corruption. The higher level of social class, the lower the impact of corrupt culture on administrative corruption

The Effect of Political Instability and Institutional Weakness on Administrative Corruption

Although there is valuable literature on areas of corruption, such as political and corporate corruption, a limited number of papers have examined the determinants of administrative corruption. To the best of our knowledge, the multivariate impacts of political instability and institutional weakness on administrative corruption, and the interplay between these constructs, have not been examined using the partial least squares structural equation modeling method. The current study attempts to fill this gap by proposing and testing a model. We test a sample of 677 responses that reflect the perspective of the general public in Basra, Iraq. Findings reveal that the political instability and institutional weakness of public organizations positively impact administrative corruption, while political instability leads to institutional weakness. Institutional weakness mediates the effect of political instability on administrative corruption. Therefore, political instability is a crucial factor causing corruption since it has both direct and indirect effects on administrative corruption. The theoretical contributions, managerial implications, limitations, and recommendations for further research are provided

Inhibition of copper corrosion in saline solution by mono-hydroxamic acid

The main objective of the present work involved the study of the inhibitive properties of organic product as environmentally friendly as copper corrosion inhibitor, in 3% NaCl solution. The effectiveness of Mono-hydroxamic acid (C12N) used as a corrosion inhibitor for copper in 3% NaCl was investigated by weight loss and electrochemical techniques. Surfaces were characterized by scanning electron microscopy (SEM). The results showed that the chemical investigated provided efficient inhibition of copper corrosion. The inhibition efficiency improved with increasing the inhibitor concentration. C12N acts mainly as a cathodic-type inhibitor

Influence Of Perceived Service Quality, Social Media Marketing Activities And Patient Satisfaction On Patients Revisit Intention At Private Hospitals In United Arab Emirates

This research examined the relevance of service quality and social media marketing activities in the context of healthcare of the private hospitals in United Arab Emirates. It encompasses the service quality dimensions of (physical environment, customer-friendly staff, communication, reliability, and responsiveness) and the social media marketing activities dimensions of (interaction, informativeness, customization and perceived risk) that can influence patients’ revisit intention, through patient’s satisfaction. The model incorporates two theories; the expectancy-disconfirmation theory and uses and gratifications theory. A total of 213 respondent of patient’s participated in this study from ten approved private hospitals in the United Arab Emirates via survey questionnaire adopted from related literature. Data was collected by using self- administered questionnaire adapted from related literature and then analysed by using structural equation modeling via Smart PLS. Patient’s satisfaction mediate the relationships between physical environment, reliability and responsiveness on revisit intention with no effect for customer friendly staff and communication. Patient’s satisfaction was found to have mediating effect between perceived risk towards revisit intention with no effect for the remaining dimensions. There is a direct relationship between (physical environment, reliability, responsiveness, and perceived risk) and patients’ satisfaction with no effect for customer friendly staff, communication, interactivity, customization and informativenes

On α\alpha-adjacency energy of graphs and Zagreb index

Let $A(G)$ be the adjacency matrix and $D(G)$ be the diagonal matrix of the vertex degrees of a simple connected graph $G$. Nikiforov defined the matrix $A_{\alpha}(G)$ of the convex combinations of $D(G)$ and $A(G)$ as $A_{\alpha}(G)=\alpha D(G)+(1-\alpha)A(G)$, for $0\leq \alpha\leq 1$. If $\rho_{1}\geq \rho_{2}\geq \dots \geq \rho_{n}$ are the eigenvalues of $A_{\alpha}(G)$ (which we call $\alpha$-adjacency eigenvalues of $G$), the $\alpha$-adjacency energy of $G$ is defined as $E^{A_{\alpha}}(G)=\sum_{i=1}^{n}\left|\rho_i-\frac{2\alpha m}{n}\right|$, where $n$ is the order and $m$ is the size of $G$. We obtain the upper and lower bounds for $E^{A_{\alpha}}(G)$ in terms of order $n$, size $m$ and Zagreb index $Zg(G)$ associated to the structure of $G$. Further, we characterize the extremal graphs attaining these bounds.Comment: 17 page