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Activated Carbon (AC) is an adsorbent having high surface area which makes the process of removing heavy metals from wastewater (such as landfill leachate) very effective. This study explored the utilization of three methods of modification of AC produced from coconut shell by treating it with nitric acid (HNO3), potassium permanganate (KMnO4) and heating at 600°C to improve the adsorption capacity...
This paper proposes a dual band antenna for future millimeter wave wireless communication. The performance of this dual band antenna is analyzed in term of reflection coefficient when some of the length of the patch antenna was adjustable, overall gain and total efficiency for both frequencies respectively. The size of this presented patch antenna is 4.9 × 7.6 mm2. The dual band antenna was fabricated...
In this study, improved normalized LMS adaptive filters are proposed to reduce the electromyogram (EMG) noise from ECG signals. The proposed technique mainly uses simple addition and shift operations and achieves considerable speed over other methods based on the LMS method. Simulation result gives by the improved versions of adaptive filter (NLMS, PNLMS, IPNLMS and MPNLS) show superior performance...
This paper compares hard and soft updating centroids for clustering Y-STR data. The hard centroids represented by New Fuzzy k-Modes clustering algorithm, whereas the soft centroids represented through k-Population algorithm. These two algorithms are experimented through two datasets, Y-STR haplogroups and Y-STR Surnames. The results show that the soft centroid performance is better than the hard centroid...
Eliciting requirements is a crucial process in developing software as requirements gathered from this process will indicate on whether the developed system will function correctly or not. Beginner usually tends to follow techniques that they are familiar with in order to elicit requirements. Ethnography is rarely implements by beginner as they are not well acquaintance with this technique. This paper...
The purpose of this paper is to determine the level and relationship between quality of work life with organizational commitment amongst academic staff in one of the leading public universities in Malaysia. A survey instrument was used to measure the perception of academic staff concerning their level of quality of work life and its relationship to organizational commitment. A total of 300 sets of...
This paper proposes expressive information visualization (IV) taxonomy to support cognitive and perceptual needs for decision support environment. Four key dimensions have been identified, namely representation, organization, interaction and content. The effects of these expressive dimensions on user satisfaction were examined. Results suggest that these dimensions are important and affect their satisfaction...
With the increase of data rate and clock speed, as well as the decrease of power supply voltage on todaypsilas technology, simultaneous switching noise (SSN) has become critical in order for the entire system to have an error free design. The difference in a few milli-volts may cause the system to fail. Therefore, it is very important to understand the characteristics of the SSN glitch of an active...
Achievements in semiconductor nanotechnology have enabled the design of advanced devices with higher performance. However, implementation of modern nanotechnology devices requires paying strict attention to parasitic effects, such as jitter which is caused by switching the entire device core logic elements (Core jitter) as well as the output buffer jitter caused by switching the inputs and outputs...
Low voltage-activated T-type calcium channels are encoded by a family of at least three genes, with additional diversity created by alternative splicing. This study describes the cloning of the human brain α1G, which is a novel isoform, Ca v 3.1c. Comparison of this sequence to genomic sequences deposited in the GenBank allowed us to identify the intron/exon boundaries of the human CACNA1G...
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