This study aimed to isolate compounds from Polyalthia lateriflora (Bl.) King stem bark, and to test the crude extracts and the isolated compounds for their antioxidant and cytotoxic activities. Three different solvents were used to prepare the crude extracts; hexane, dichloromethane (DCM) and methanol. Phytochemical investigation of the crude extra

This paper explores attitude control algorithms using thrusters and momentum wheels for satellite tracking manoeuver. The attitude ref-erence trajectory is generated to track a ground object on the rotating Earth and to keep the Sun vector perpendicular to the solar panel to maximize the solar power. The dynamic model is derived based on Newton-Eul

This study was carried out to investigate the phytochemicals from the barks of Alphonsea elliptica. The barks were harvested from Hutan Simpan Sembarong, Kluang, Johor; and extracted using dichloromethane (DCM), hexane and methanol successively. Isolation of dichloromethane crude extract was then performed using silica gel column chromatography and

Visually impaired people find great difficulty in moving around freely without a human guide, especially in a new terrain. iWalk is an intelligent walking stick specially designed for visually disabled individuals to improve and ease navigation. iWalk uses ultrasonic and water sensors to detect obstacles and water ahead. The water sensor integrated

Intrusion Detection System (IDS) is a dynamic network security defense technology that can help to provide realtime detection of internal and external attacks on a computer network and alerting the administration for necessary action. However, the inconsistent nature of networks has resulted in a high number of false positives which makes many netw

Ubiquitous Computing and Internet of Things (IoT) are extremely popular in recent age and therefore imparting high level security mechanism is highly indispensable for such advanced technical systems. Game Theory acts as a suitable tool offering promising solutions to securityrelated concerns in Mobile Ad-Hoc Networks (i.e., MANETs). In MANETs, sec

The current research statistics for cache designing reveals that Spin Torque Transfer Magnetic RAMs (STT-MRAMs) have become one of the most promising technologies in the field of memory chip design, gaining a lot of attention from researchers due to its dynamic direct map and data access policies for reducing the average cost i.e. both time and ene

The joy we derive from our ability to commute and interact freely with the world as a result of our possession of sight with the naked eyes are enormous however the Visually impaired people find great difficulty in moving around freely without a human guide, especially in a new terrain. This research reports the design and fabrication process of an

Nowadays Mini Aerial Vehicles (MAVs) are popular in many areas such as aerial photography, inspection, surveillance and search and rescue missions in complex and dangerous environments due to their low cost, small size, superior mobility, and hover capability. Multifarious applications of MAVs inspire researchers to concentrate on different types o

A search is conducted for new physics in final states containing a photon and missing transverse momentum in proton-proton collisions at √ s = 13 TeV, using the data collected in 2016 by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb−1 . No deviations from the predictions of the standard model are observed.