A graphene-based Q-switched erbium-doped fiber laser (EDFL) with a tunable fiber Bragg grating (TFBG) acting as a wavelength tuning mechanism is proposed and demonstrated. The proposed setup utilizes a newly-developed ‘ferrule-to-ferrule transfer’ technique to obtain a single graphene layer that allows for Q-switch operation in the EDFL using a

The flow and heat transfer of a micropolar fluid past a nonlinearly stretching plate is studied numerically, by taking into account the viscous dissipation effect. It is assumed that the plate is stretched nonlinearly from the slot where it is issued. The governing system of partial differential equations is transformed into ordinary differential e

A tunable short-wavelength band Raman fiber laser using a dispersion shifted fiber as the nonlinear medium is proposed and demonstrated. This approach provides an alternative to the common method of using depressed-cladding, erbiumdoped fibers as the gain medium in S-band fiber lasers. The proposed laser has a tuning range of 1508 to 1534 nm as wel

يدرس المقال دور وسائل الإعلام العربي الماليزي في نشر اللغة العربية في ماليزيا

Horse mango (Mangifera foetida Lour) fruit is known to produce latex with a blistering effect upon contact with human skin. In this study, it was chosen as a source of protease, and the effect of the extraction process on its protease activity was evaluated. The crude enzyme was extracted from the kernels and extraction was optimized by a response

Due to the pharmacokinetic properties, metformin HCl needs longer period to achieve therapeutic effects with multiple daily doses which may reduce patient’s adherence towards the medication. Hence, novel drug delivery system such as microspheres may be helpful for this non-compliance of the conventional therapy. Double-emulsion solvent evaporatio

Background: The practice of peritoneal dialysis (PD) catheter insertion by nephrologists has been advo¬cated to enhance PD penetration with encouraging outcome as shown in several centres. In this study, we evaluate the safety and effectiveness of our catheter insertion via peritoneoscopic method. Methods: We report our local experience in tenchko

The objective of this article is to highlight points of convergency and dissimilarities in the teachings of Buddhism and Sufism in the the aspect of spirituality. It describes the path of a wayfarer in his spiritual journey to attain fana’, the highest achievement and the final state of spiritual experiences in the teachings of Islamic Mysticism,

Malaysia has tropical sky conditions, receiving plenty of natural light throughout the year. Natural light fluctuates greatly and it can be rather tricky to provide good distribution of daylight throughout an interior space and this prompts the need for strategic daylight control programme in a historic museum gallery. Surface reflectance is a sign

Industrial training that is known as an Engineering Industrial Training (EIT) course is the requirement for all engineering students in order to complete their Bachelor of Engineering degree at the Kulliyyah of Engineering, International Islamic University Malaysia (IIUM). EIT is a very important programme since it complements both the academic and