58 research outputs found

    Wheeling Charges Methodology for Deregulated Electricity Markets using Tracing-based Postage Stamp Methods

    Get PDF
    MW-mile and Postage-stamp methods is traditionally used by electric utilities to determine a fixed transmission cost among users of firm transmission service. MW-Mile method is charging the users by determining the actual paths the power follows through the network. However, this method is not sufficient to recover the total transmission system cost. To recover the total transmission system cost, the Postage Stamp Method is adopted. This method is simple but its main drawback is that the charges paid by each user do not reflect the actual use of the network but based on the average usage of the entire network. This paper proposes a new wheeling charges methodology using tracing-based postage stamp methods. The proposed method allocates transmission costs among the generators proportional to the total power delivered to the load through transmission lines. The proposed method incorporates with generalised generation distribution factors to trace the contribution of each generator to the line flow. One unique feature of the proposed method is the consideration of the local load on the power flow allocation. Two case studies of 3-bus and IEEE 14-bus systems are used to illustrate the proposed method. Results show that the proposed method provides fair and equitable wheeling charges to generators reflecting the actual usage of the transmission system

    Collection protocols for the recovery of biological samples

    Get PDF
    The main focus in forensic genetics for two decades has been to improve the extraction of DNA from a wide variety of evidence and to make the profiling technology more sensitive and robust. In contrast, the recovery methods for biological material have seen little development. This study aims to improve the efficacy of the collection and storage processes, from crime scene to receipt at the laboratory. This study compared the use of ultrapure water as a wetting agent when collecting biological evidence using swabs with a detergent-based buffer. The results show that the stability post-collection greatly improved by using a newly developed buffer. When ultrapure water is used, DNA degradation was seen after 6 h at room temperature. However, the detergent-based buffer stabilized DNA for up to 48 h, even when the temperature was increased to 50 °C. The impact of these findings may be limited where crime scene evidence can be refrigerated until it reaches the laboratory. However, there are many situations/contexts where sample refrigeration is not possible and there is scope to improve the preservation of the genetic forensic evidence before it reaches the laboratory

    Digital Workplace Model for Research University Publication Collaboration

    Get PDF
    Digital Workplace is a virtual equivalent to the modern version of traditional workplace where an employee can work anywhere by using any devices, browsing files and sharing knowledge.  Meanwhile, MyRa is commonly known as Malaysia Research Assessment tool for measuring research performance indicator in public university.  The MyRA instrument is used to engage the research development and innovation activities which outcomes is categorized into six levels, with ‘six stars’ being the highest and one star the lowest.  In order to achieve MyRA objective, research university boosts the research publications from academicians.  However, from all submission, not all publication papers are achieved a high standard, which causes low rating stars. The absence of working digital repository for research publication is among challenge face by most academicians in searching for research paper collections as a reference.  Besides that, they unable to keep in touch with the author of a research paper on getting advice and feedback for their working documents.  Thus, this study aims to propose a digital workplace model focusing on research publication Digital Workplace.  Initial findings highlights, there five main dimensions associated with establishing this model which are communication, environment, strategy, collaboration and community

    Performance Comparison of Segmentation Techniques for Nucleus in Chronics Leukemia

    Get PDF
    Morphological criteria have been used by haematologists to identify malignant cells in the blood smear sample under a light microscope. Experienced hematologist must perform this screening operation. However, manual screening using microscope is time-consuming and tedious. Thus, an automated or semi-automated image screening and diagnosis system are very helpful. An ideal automated screening system will acts as a human expert during the procedure. To formulate this idea, there are few steps involves in this process which is the acquisition of image, image segmentation, features extraction and recognition of image data for further analysis in computer-based. However, segmentation of a region of interest is the most crucial task to extract features for further learning and diagnose. This paper represents two segmentation techniques and their performance comparison based on clustering approach which are k-means and moving k-means clustering algorithms. The segmentation process is performed on ten chronics leukaemia images. The performance of segmentation based on the proposed techniques was evaluated. The proposed segmentation techniques offer high accuracies of segmentation which is more than 97% for both techniques

    A User-Centered Design Approaches for Developing Web Information System for Stroke Care (WISS)

    Get PDF
    Optimizing resources from internet is important because effective stroke care require caregiver have a fruitful of information at increasing efficiency in acute stroke care. With the result shown that stroke becomes the third leading cause of death in world, there is an urge need for the information provided online is reliable. There is still limited information available online to assist in stroke care as well as the right medium to deliver the information to stroke patient. This paper discusses on User-Centered Design (UCD) approaches for designing the prototype for web information system for Stroke Care. The methodology uses are interviews, focus-group discussion and observation, questionnaires and card-sorting activity. This research covers four groups of users: stroke caregivers, two stroke rehab centers, therapists and doctors who handle the     structure proposed using UCD approach

    The Challenges And Contribution Of Internet Of Things (IoT) For Smart Living

    Get PDF
    The evolution of Internet and advanced in ICT had led to the increasingly usage of Internet of Things (IoT) in various sectors and facilitated borderless connection in various fields. Contextualised within the development of Smart City, much have been reported on the challenges and contribution of using of IoT for smart living. This paper presents a review of the challenges and contribution of using IoT for smart living. Using a systematic method to analyse the literature, 31 articles have been selected for the review. It was found that the contributions of IoT surpass the challenges of using IoT. Two significant contributions have been identified, which are facilitating communication and improving safety as well as improving quality of life. Meanwhile, the main challenges of IoT implementation are issues related to security and privacy. It was also found that there is a lack of information related to the ways to overcome the challenges, although the challenges were discussed in length. This review provides an overview of the adoption of IoT for Smart Living, focusing on its challenges and contribution

    Creating an engaging and stimulating anatomy lecture environment using the Cognitive Load Theory-based Lecture Model: Students' experiences

    Get PDF
    Objective: There is a need to create a standard interactive anatomy lecture that can engage students in their learning process. This study investigated the impact of a new lecturing guideline, the Cognitive Load Theory-based Lecture Model (CLT-bLM), on students’ cognitive engagement and motivation. Methods: A randomised controlled trial involving 197 participants from three institutions was conducted. The control group attended a freestyle lecture on the gross anatomy of the heart, delivered by a qualified anatomist from each institution. The intervention group attended a CLT-bLM-based lecture on a similar topic, delivered by the same lecturer, three weeks thereafter. The lecturers had attended a CLT-bLM workshop that allowed them to prepare for the CLT-bLM-based lecture over the course of three weeks. The students’ ratings on their cognitive engagement and internal motivation were evaluated immediately after the lecture using a validatedLearners’ Engagement and Motivation Questionnaire. The differences between variables were analysed and the results were triangulated with the focus group discussion findings that explored students’ experience while attending the lecture. Results: The intervention group has a significantly higher level of cognitive engagement than the control group; however, no significant difference in internal motivation score was found. In addition, the intervention group reported having a good learning experience from the lectures. Conclusion: The guideline successfully stimulated students’ cognitive engagement and learning experience, which indicates a successful stimulation of students’ germane resources. Stimulation of these cognitive resources is essential for successful cognitive processing, especially when learning a difficult subject such as anatomy

    Tensor calculus for supergravity on a manifold with boundary

    Get PDF
    Using the simple setting of 3D N=1 supergravity, we show how the tensor calculus of supergravity can be extended to manifolds with boundary. We present an extension of the standard F-density formula which yields supersymmetric bulk-plus-boundary actions. To construct additional separately supersymmetric boundary actions, we decompose bulk supergravity and bulk matter multiplets into co-dimension one submultiplets. As an illustration we obtain the supersymmetric extension of the York-Gibbons-Hawking extrinsic curvature boundary term. We emphasize that our construction does not require any boundary conditions on off-shell fields. This gives a significant improvement over the existing orbifold supergravity tensor calculus.Comment: 20 pages, JHEP format; published versio
    corecore