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pdms-Based dual-Channel Pneumatic micro-Actuator
Research Output | Dar Al-hikmah Library | IIUM Only

This paper presents a monolithic novel polydimethylsiloxane-based dual-channel bellows-structured pneumatic actuator, fabricated through a sacrificial molding technique. A finite element analysis was performed to find the optimal structure and analyze the bending performance of the square-bellows actuator. The actuator was designed with an overall

The Pillars of School: a Case Study of Middle Leaders in Four Private Secondary Schools in Islamabad Pakistan
Research Output | Dar Al-hikmah Library | IIUM Only

This study unveils the roles, responsibilities and challenges faced by middle leaders in private secondary schools in Pakistan. The study also focused on their contribution to schools in order to bring democratic changes in thinking, attitudes and behavior of school leadership system in a developing country. This was a case study which used intervi

Factors Affecting Thermosyphon Performance- a Review of Studies
Research Output | Dar Al-hikmah Library | IIUM Only

The utilization of the two-phase thermosyphons (TPTs) is expanding for some warmth exchange applications. This paper reviews the performance of thermosyphon TPT systems. The impact of the influencing parameters on the execution of TPTs for example geometry, filling ratio ,working liquid and the inclination angle by different researchers are discuss

Experimental Investigation of Straight Shape Thermosyphon Filled with R410a Refrigerant
Research Output | Dar Al-hikmah Library | IIUM Only

The thermal performances of a R410A filled thermosyphon subjected to low heat flux from 1882 W/m2 to 4423 W/m2 and evaporator wall temperatures between 20 °C and 40 °C with fill ratios 0.75 and 1.00 and at different inclinations from 45° to 90° were investigated. The axial temperature distribution of the thermosyphon was found to be uniform for

Analysis of Damping Derivatives for Delta Wings in Hypersonic Flow for Curved Leading Edges with Full Sine Wave
Research Output | Dar Al-hikmah Library | IIUM Only

In this study, an attempt is made to evaluate the effect of first arched ends on the damping derived due to the pitch rate aimed at the variable sine wave bounty, flow deflection angle δ, pivot position, and the Mach numbers. Results show that with the escalation in the bounty of the complete sine wave (i.e., positive amplitude) there is an enligh

Evaluation of Stiffness Derivative for a Delta Wing with Straight Leading Edges in Unsteady Flow
Research Output | Dar Al-hikmah Library | IIUM Only

The emphasis of this paper is to examine the Stiffness derivative variation with the pivot position by varying Mach number in unsteady flow and its comparison with quasi-steady the flow of Crasta& Khan for varying angle of attack with different Mach number. From the results, it is evident that Stiffness derivative decreases as the Mach number i

Estimation of Damping Derivatives for Delta Wings in Hypersonic Flow for Straight Leading Edge
Research Output | Dar Al-hikmah Library | IIUM Only

Accurate estimation of the aerodynamic stability derivatives of airplanes is essential to evaluate the performance of the aircraft, whether civilian or military. Theoretical prediction methods for the dynamic stability derivatives at high angles of attack have not advanced, and in the present paper, an attempt has been made to study the effect of d

Synchronization and Antisynchronization Protocol Design of Chaotic Nonlinear Gyros: an Adaptive Integral Sliding Mode Approach
Research Output | Dar Al-hikmah Library | IIUM Only

A novel control protocol design, via integral sliding mode control with parameter update laws, for synchronization and desynchronization of a chaotic nonlinear gyro with unknown parameters is the focus of this work. The error dynamics of the actual system are substructured into nominal and uncertain parts to employ adaptive integral sliding mode (A

The Effect of Synbiotic Streptococcus Salivarius K12 and Musa Acuminata on Candida Albicans Biofilm Formation
Research Output | Dar Al-hikmah Library | IIUM Only

Introduction: Candida a/bicans is an opportunistic fungus that is associated with oral carcinogenesis. In addition, biofilm formation has been one of the important virulence factors of the yeast. Streptococcus salivarius Kl 2 is an oral probiotic while Musa acuminata is a well-known prebiotic. The objective of this study is to investigate the effec

Intellectual Property Protection for Agricultural Biotechnology: a Survey on the Malaysian Research Institutes’ Experiences and Legal Policy
Research Output | Dar Al-hikmah Library | IIUM Only

This article focuses on the current legal protection for agricultural biotechnological inventions in Malaysia. As far as Malaysian IP system is concerned, there are two main regimes which are currently in force: patent law and plant variety protection law. Patent law in Malaysia refers to the Patents Act 1983, supplemented by the Patents Regulation

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KCDIOM

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KCDIOM

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