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An Improved Backscattering Theoretical Model for Snow Area
No full textRemote sensing has been studied for a long time to monitor the earth terrain. Remote sensing technology has been used globally in many different fields and one of the most popular area of study that uses remote sensing technology is snow monitoring. In previous researches, remote sensing has been modelled on snow area to study the scattering mechanisms of various scattering processes. In this paper, surface volume second order term that was dropped in previous study is derived, included and studied to observe the improvement in the surface volume backscattering coefficient. This new model is applied on snow layer above ground and the snow layer is modelled as a volume of ice particles as the Mie scatterers that are closely packed and bounded by irregular boundaries. Various parameters are used to investigate the improvement of adding the new term. Results show improvement in cross-polarized return, for all the range of parameters studied. Comparison is made with the field measurement result from U.S. Army Cold Regions Research and Engineering Laboratory (CRREL) in 1990. Close agreement is shown between developed model and data field backscattering coefficient result.
Manuscript Received: 25 February 2021, Accepted: 11 June 2021, Published: 15 December 202
Development of A Soil Resistivity Calculator
No full textSoil resistivity is an important parameter for designing electrical earthing system. The measurement of soil resistivity is greatly influenced by moisture content, temperature, porosity, degree of saturation, number of soil layer(s), and frequency of lightning current. Researchers have proposed various methodologies to provide an approximation of soil resistivity using the listed parameters. In order to ease the process of estimating soil resistivity at a particular area, there is a pressing need to devise a simple tool that enables the calculation of soil resistivity in the most accurate manner. As such, this research proposes a reliable tool for quick evaluation of soil resistivity based on various methodologies using Microsoft Excel’s built-in-functions and Visual Basic Application (VBA) Next, the developed tool was validated using two methods, in which the output value of the calculator was compared with data retrieved from IEEE Std 142-2007 and data reported in past studies. The validation results revealed that the developed calculator may serve as a significant application in future due to its time-saving and cost-effective attributes.
Manuscript Received: 1 March 2021, Accepted: 27 April 2021, Published: 15 December 202
Digital Tracing and Malaysia's Personal Data Protection Act 2010 amid the Covid-19 Pandemic
No full textDigital tracing is a proven effective means for the Malaysian government to trace and control the spread of COVID-19. However, the process of tracing and tracking in order to manage the spread of the pandemic have in many ways compromised personal information to third party applications. Malaysia is not the only country that uses digital tracing to manage the spread of the pandemic. Various countries have chosen different methods for digital contact tracing to manage the spread of COVID-19 and some are less respectful of privacy than others. This paper analyses Malaysia’s Personal Data Protection Act 2010 (PDPA) and its effectiveness in protecting personal data during the pandemic as Malaysians continue to utilise the contact tracing mobile applications such as MySejahtera and SELangkah. The researchers applied doctrinal research method and analysed the current Malaysian legislation on data protection. It should be noted that the PDPA does not apply in the case of government collection and would not require federal and state agencies to be transparent in their data management
Economic Rights under the UN System and the Creation of a Newer International Economic Order
No full textIn the beginning of the human rights discourse, emphasis was on civil and political rights. Later, the thrust of the discourse moved to social and economic rights. Economic rights were demanded by the developing world manifesting in the form of Permanent Sovereignty over Natural Resources and the New International Economic Order. Due to the untiring efforts of these members, economic rights are reflected, enunciated and promoted in the international human rights instruments created under the aegis of the UN. The OHCHR has an innovative approach towards the guaranteeing of economic rights. For instance, the Office has a human rights approach towards poverty alleviation. It also recognises different duty holders in promoting human rights like the Transnational Corporations apart from the governments and civil society in ensuring human rights (especially in the interlinkages on Business and Human Rights). These new approaches has transformed the promotion of economic rights. The question is whether the international economic order has benefited from the promotion and guaranteeing of the economic rights. The aim of the present article is to analyse the impact of UN efforts in promoting economic rights and its repercussions on the formation of a newer international economic order
Brand Loyalty in Online Brand Communities in Malaysia: A Uses and Gratifications Perspective
No full textThis study examines the online communities’ gratifications of social media usage and to understand how their perceived values within an online brand page environment can affect brand loyalty. In addition to the content-oriented and relationship-oriented aspects of uses and gratifications of online brand communities, this study also includes economic value to the existing model considering online promotions and rewards may encourage consumer brand engagement and subsequently lead to brand loyalty. The data collected via snowball sampling method consisted of the responses of 150 respondents who are in one or more online brand communities of different brands in Malaysia. The result shows that functional value and hedonic value are the most important motivators to drive brand loyalty in online brand communities. The result implies that the brand loyalty in online brand communities in Malaysia depends on the functionality and pleasant sensations experienced from the brand fan page. The result suggests that brand page should deliver informative, rich and customised information contents to fulfil the satisfaction of online communities. This study provides insight on social media users’ perceived values that drive their satisfaction and loyalty towards the brand via the fan page, which in turn helps brand marketing practitioners in Malaysia to understand on how these perceived values may influence the brand loyalty of online communities, particularly from the perspective of the Uses and Gratifications theory
Real Time Fire Detection System with Image Processing
No full textFire detection system by image processing is a growing research in this era. There are many methods used to detect fire out, butstill need to develop an accurate method to detect fire without false alarms. This is due to the fact that many methods used RGB colour mode for detection. In this paper, mainly focuson detecting the fire effectively using thermal video from a thermal camera while in the same time the system will alert the people if fire was detected,and also observed the speed of the fire.This will enormously benefit to the fire fighters. With this system, the fire can be detected effectively while alerting the people and giving valuable information to the fire fighters for their job more effectively.
Manuscript received: 29 Jun 2021 | Revised: 20 Jul 2021 | Accepted: 9 Sep 2021 | Published: 8 Nov 202
Conditional Noise Filter for MRI Images with Revised Theory on Second-order Histograms
No full textPrevious research by the author has the theory that histograms of second-order derivatives are capable of determining differences between pixels in MRI images for the purpose of noise reduction without having to refer to ground truth. However, the methodology of the previous research resulted in significant false negatives in determining which pixel is affected by noise. The theory has been revised in this article through the introduction of an additional Laplace curve, leading to comparisons between the histogram profile and two curves instead of just one. The revised theory is that differences between the first curve and the histogram profile and the differences between the second curve and the profile can determine which pixels are to be selected for filtering in order to improve image clarity while minimizing blurring. The revised theory is tested with a modified average filter versus a generic average filter, with PSNR and SSIM for scoring. The results show that for most of the sample MRI images, the theory of pixel selection is more reliable at higher levels of noise but not as reliable at preventing blurring at low levels of noise.
Manuscript received: 2 Jul 2021 | Revised: 27 Aug 2021 | Accepted: 9 Sep 2021 | Published: 8 Nov 202
Service Quality Analysis of Mhealth Services Using Text Mining Method : Alodokter and Halodoc: DOI: https://doi.org/10.33093/ijomfa.2021.2.2.1
No full textThe digital transformation of health services causes an increasing number of digital health service providers in Indonesia. The user shares their experiences and reviews each other on the online platform. This study aims to understand user perceptions of m-health services in Indonesia based on m-health service quality with a big data approach. Research using text mining is derived from the results of the reviews of the application Alodokter and Halodoc. User-generated content was gathered from the platform Google Play Store in the period April to December 2020. Based on the sentiment analysis, Alodokter performs well with 73% positive and 27% negative, while Halodoc also dominated with 86% positive and 14% negative. User reviews are categorized based on three dimensions of health service quality with a multiclass classification. It is possible to identify the word networks that often appear in user reviews through text network analysis. The dimension that reviews chiefly on Alodokter and Halodoc is perceived outcome quality. The result of this study could help or use as guidance to be a reference for evaluations to improve Indonesia's quality of m-health services
GNSS Interference Environment in Malaysia: A Case Study:
No full textGlobal Navigation Satellite Systems or GNSS is a space technology that has become an essential element nowadays for positioning, navigation & timing (PNT) with wide range of applications in many civilian sectors as well as across military. The reliability, accuracy and availability of GNSS are highly important especially for critical and precise positioning applications. However, the signals from space are weak and it can be easily blocked, disrupted or compromised by several other threats including intentional and unintentional interferences or jamming. GPS jammer is widely available off the shelf with an affordable price and capable of interfering the GPS signal, and many authorities worldwide have raised concerns and a lot of efforts and research have been put in place to reduce and mitigate the threats. In Malaysia, understanding and countering threats to GNSS/GPS based applications will be a new and unfamiliar discipline for public and organizations. This study intended to provide an overview of the GNSS interferences environment in a local study area, in terms of interference type and the number of activity pattern that were detected. A system called Detector V1 has been used in this study. The result showed that significant interference cases happened in the study area and some of the high power interferences may impact GNSS tracking and precision of the positioning output. The role objective of having this done is to create a public awareness regarding the threat of GNSS interferences to the local users. The content also includes the proposed initiative to overcome the issue.
Manuscript Received: 19 Dec 2020, Accepted: 4 March 2021, Published: 15 June 202
Written Text on Pakistani Vehicles: A Critical Discourse Analysis
No full textLinguistically, the word ‘language’ has shifted into ‘discourse’ which is a social phenomenon not only to express the thoughts but also to reflect the mindset and contexts of a specific community. The purpose of this study is to examine the slogans written on Pakistani automobiles and to understand the logic behind the social and cultural affiliations of these slogans. Pakistani culture of the art of making pictures and written phrases, poetic verses and imperative sentences on vehicles is famous all over the world. The study has analysed the writings found on vehicles, and although these writings might look trivial on the automobiles, they address various social issues. The Three-Dimensional Model of Critical Discourse Analysis (CDA) by Fairclough (2001) is used as a theoretical framework that explains the study at three levels: lexical, syntactic patterns, interpretations, and social practices. The discourses written on the vehicles are characterised into different categories, which are life’s mission statements, loud messages, mind baffling messages, everyday life annoyances, provoking statements, and religious looms. Twenty images and pictures have been captured from vehicles as a random sample of this study. The results reveal the mindset behind these discourses. They are used to highlight social issues which Pakistan faces, being a developing country. In short, the study discloses the strong link between the vehicles and the people using them to convey messages to the society which can bring harmony among the public. The current study is limited to only Pakistani motor vehicles