132 research outputs found

    Using game engine for 3D terrain visualisation of GIS data: A review

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    This paper reviews on the 3D terrain visualisation of GIS data using game engines that are available in the market as well as open source. 3D terrain visualisation is a technique used to visualise terrain information from GIS data such as a digital elevation model (DEM), triangular irregular network (TIN) and contour. Much research has been conducted to transform the 2D view of map to 3D. There are several terrain visualisation softwares that are available for free, which include Cesium, Hftool and Landserf.This review paper will help interested users to better understand the current state of art in 3D terrain visualisation of GIS data using game engines

    The Vehicle Steer by Wire Control System by Implementing PID Controller

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    The latest technology of vehicle steer-by-wire (VSBW) system has promised significant improvement in vehicle safety, dynamics, stability, comfort and maneuverability. Due to complete separation between steering wheel and the front wheels gives the practical problems for steering control especially on directional control and wheel synchronization of vehicle. This paper presents investigations into the development of PID control scheme for directional control and wheel synchronization of a VSBW system. Two PID controllers are used to control the steering wheel angle and front wheel angle. The PID controllers use the front wheel tracking error to generate controlled steering angle. The Ziegler Nichols method is used for tuning the PID parameters. The implementation environment is developed within Matlab/Simulink software for evaluation of performance of the control scheme. Implementation results of the response of the VSBW system with the PID controller are presented in time domains. The performances of control schemes are examined in terms of input tracking capability, wheel synchronization and time response specifications with the absence of disturbances

    An investigation of emotional intelligence and counselling self-efficacy among counsellors-in-training

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    The challenges faced by the counsellors-in-training are enormous. Therefore, investigating emotional quotient (EQ) and counselling self-efficacy among counsellors-in-training is crucial. This study aimed to examine the EQ and counselling self-efficacy levels among counsellors-in-training and investigate the relationships between these variables. A total of 373 counselling students from three universities in the Northern Peninsular of Malaysia have participated in this study. This study involved a quantitative method using survey as a data collection technique and also employed a convenience sampling procedure. There were two questionnaires used in this study, namely Bar-On emotional quotient inventory (EQ-i) and counselling self-estimate inventory. The results showed that there was a significant correlation between EQ and counselling self-efficacy which all sub-constructs for both measures are well-associated with each other. In conclusion, these two variables are essential to ensure counselling students would move toward a better developing identity of counsellors-in-training and encourage the growth of professional competency among trainee counsellors in the future. Hence, it is vital for the government to ensure that quality counselling services should be provided for the community to deal with this problem

    Mengurus Trend Sokongan Penyelidikan Dalam Tempoh Endemik: Inisiatif Sains Terbuka dan Pengurusan Data Penyelidikan

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    Negara telah bergerak kepada fasa ‘peralihan ke endemik’. Fasa ini akan membolehkan kita kembali semula kepada kehidupan yang hampir normal selepas hampir dua tahun berperang dengan penularan pandemik COVID-19 yang melanda pada penghujung Disember 2019. Ia telah memberi impak yang sangat besar kepada kehidupan masyarakat dunia yang mana ia telah menukar gaya hidup dan cara kerja masyarakat dalam semua sektor termasuk sektor pendidikan. Dalam tempoh ini, Perpustakaan Universiti Sains Malaysia (USM) melalui Bahagian Sokongan Penyelidikan (BSP) sentiasa berusaha memberi perkhidmatan yang terbaik dengan memperkenal pelbagai inisiatif untuk menyokong aktiviti pengajaran, pembelajaran, penyelidikan dan perundingan agar sentiasa berjalan lancar. Inisiatif yang diperkenalkan tertumpu kepada dua elemen utama iaitu sains terbuka serta pengurusan data penyelidikan (RDM). Selain daripada itu, Bahagian ini juga bertanggungjawab menjayakan agenda yang lebih besar dan juga merupakan agenda penting negara di bawah Kementerian Sains, Teknologi & Inovasi (MOSTI) dan Akademi Sains Malaysia (ASM). Beberapa perkhidmatan baharu yang bersifat personalized telah diperkenalkan bagi memudahkan para penyelidik menjayakan kajian seperti journal verification for publication, request for list of indexed journals with quartile information based on specialization, Request for merging Scopus ID, On demand training on RDM, Research made easy webinar series dengan kerjasama Elsevier dan Clarivate serta konsultasi. Terkini, Perpustakaan juga sedang mengetuai inisiatif untuk membangunkan sistem verifikasi data penerbitan yang lebih komprehensif dan menubuhkan Jawatankuasa Pemandu Open Science. Perpustakaan USM amat optimis bahawa inisiatif yang dirancang dan dijayakan ini akan memberi manfaat dan impak yang besar kepada warga penyelidik dalam usaha memudahkan urusan penyelidikan di era endemik yang kian mencabar

    Information Security Culture Concept towards Information Security Compliance: A Comparison between IT and Non-IT Professionals

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    This paper examines the factors determining a positive Information Security Culture (ISC) concept and the influence of ISC towards ISP compliance intention (INT) between IT and non-IT professionals in Malaysian public universities. Partial least square structural equation modelling, using PLS MGA, is used to assess the measurement and structural models, and to compare the results between the two groups. Results indicate all factors have significant contribution towards ISC in both groups, with two out of seven ISC factors have significant differences. This study has revealed that although both groups have the same ISC factors, IT and non-IT professionals have significant difference in terms of believe that Top Management Commitment and Information Security Knowledge are required for implementing a positive ISC. In addition, there is a significant difference between these two groups in terms of the influence of ISC towards ISP compliance intention. ISC has less influence towards INT for Non-IT professionals compared to IT professionals within the same ISC. These empirical findings would benefit in formulating better security strategies by providing appropriate efforts for different groups of employees in the organizations. This study also provides a total cyber security solution for improving information security culture and employees’ compliance towards Information Security Policy

    Arthroscopic Mumford procedure utilizing the anteromedial and Neviaser portals – a pilot cadaveric study on neurovascular structures at risk

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    Introduction: Degenerative disorder involving the acromio-clavicular joint (ACJ) is quite common especially in the elderly. One of the surgical modalities of treatment of this disorder is the Mumford Procedure. Arthroscopic approach is preferred due to its reduced morbidity and faster post-operative recovery. One method utilizes the anteromedial and Neviaser portals, which allow direct and better visualization of the ACJ from the subacromial space. However, the dangers that may arise from incision and insertion of instruments through these portals are not fully understood. This cadaveric study was carried out to investigate the dangers that can arise from utilization of these portals and which structures are at risk during this procedure. Methods: Arthroscopic Mumford procedures were performed on 5 cadaver shoulders by a single surgeon utilizing the anteromedial and Neviaser portals. After marking each portals with methylene blue, dissection of nearby structures were carried out immediately after each procedure was completed. Important structures (subclavian artery as well as brachial plexus and its branches) were identified and the nearest measurements were made from each portal edges to these structures. Results: The anteromedial portal was noted to be closest to the suprascapular nerve (SSN) at 2.91 cm, while the Neviaser portal was noted to be closest also to the SSN at 1.60 cm. The suprascapular nerve was the structure most at risk during the Mumford procedure. The anteromedial portal was noted to be the most risky portal to utilize compared to the Neviaser portal. Conclusion: Extra precaution needs to be given to the anteromedial portal while performing an arthroscopic distal clavicle resection in view of the risk of injuring the suprascapular nerve of the affected limb

    Integration of QRM and ergonomics in the design of a framework in identification complaints among automotive assembly line workers

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    The assembly line is the most critical area of automotive manufacturing. The smoothness of the production process depends on the situation and conditions of the environment and its workers. The assembly process is done manually by using humans to install all the related components in the production line. Complaints felt by workers during the manufacturing process can hinder the smooth running of production in meeting capacity, thus affecting the company's performance. Therefore, the purpose of this study is to design a framework for identifying workers' complaints by using a combination of the Quick Response Manufacturing (QRM) and ergonomics. This framework is expected to identify grievances felt by workers from all aspects of the assembly environment that could potentially impact employment grievances. Framework design is created using the main concept of QRM which consists of time is money, tailoring your dynamics, focusing on the target market segment and thinking gold. Each of these concepts contains ergonomic elements such as workload variables and complaints of musculoskeletal disorders related to production schedules, production time, overtime, facility layout and equipment used. It is hoped that this framework can achieve the desired goal of minimizing work risk in optimizing the production process of the assembly line

    Occurrence and potential human health risk of pharmaceutical residues in drinking water from Putrajaya (Malaysia)

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    Occurrence of pharmaceutical residues in drinking water has been widely reported in countries that have registered steady economic growth. This can exert concerns among the general consumers, prompting them to explore the potential human health risks associated with continuous exposure to pharmaceuticals. However, such an occurrence is rarely reported in developing or under-developed countries. To give more contexts, this study looked at the presence of nine pharmaceutical residues in drinking water (amoxicillin, caffeine, chloramphenicol, ciprofloxacin, dexamethasone, diclofenac, nitrofurazone, sulfamethoxazole, and triclosan) at Putrajaya residential area in Malaysia. Additionally, the potential health risks associated with contaminated drinking water were investigated. This study has found the presence of pharmaceutical residue concentrations up to 0.38 ng/L, with the highest concentration of caffeine (0.38 ng/L) and the lowest concentration of diclofenac (0.14 ng/L). In comparison, all the nine pharmaceutical residues were substantially lower than previously reported studies. In general, Hazard Quotient (HQ) values indicated that low potential health hazards were present for all age groups. Nevertheless, quantitative occurrences of pharmaceutical residues in drinking water will help guide future toxicological studies to examine other chronic effects, while canvassing for proper framework to look into the water risk management and regulation in Malaysia

    Modelling a saturating function of signals released in irradiation bystander effects

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    Mechanisms of mammalian cell killing effects produced by irradiation are complex processes and it is vitally importance to understand the phenomenon. In this research, models of survival fraction of targeted and bystander cells are employed, with modification on the signaling factors. The models are a type of two-dimensional vector that structure a population cell depends on the double-strand breaks (DSBs) and mis-repair DSBs count (k and m, respectively). Data fitting and parameter estimation are used as model calibration. Then, by using the estimated parameters, the model simulation shows a good fit against the experimental data with a sum of absolute error (SAE) of 0.0355 and 0.1542, respectively. These errors confirmed that the models are successfully depicted the actual measurement of targeted and bystander effects

    Effect of GPS tropospheric delay Neill mapping function simplification

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    The mathematical modeling on the mapping function models should be revised and also simplified to improve the calculation of the GPS tropospheric delay. The zenith tropospheric delay can be amplified by a coefficient factor called mapping function to form total tropospheric delay. There are many mapping functions have been established to calculate the scale factor which can affect the total tropospheric delay. Most of the modern models have separated mapping functions for the hydrostatic and the wet part. Recently, the developed tropospheric delay models use mapping functions in the form of continued fractions which is quite tedious in calculation. There are 26 mathematical operations for Neill Mapping Function (NMF) to be done before getting the mapping function scale factor. There is a need to simplify the mapping function models to allow faster calculation and also better understanding of the models. The mapping functions for NMF models for hydrostatic and wet components are given in a form of continued fraction, whereby the elevation angle is the variable. These mapping function models have been selected to be simplified, because of their ability to achieve mapping function scale factor, down to 3 degree of elevation angle
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