956 research outputs found
Analysis and classification of myocardial infarction tissue from echocardiography images based on texture analysis
Texture analysis is an important characteristic for automatic visual inspection for surface and object identification from medical images and other type of images. This paper presents an application of wavelet extension and Gray level cooccurrence matrix (GLCM) for diagnosis of myocardial infarction tissue from echocardiography images. Many of applications approach have provided good result in different fields of application, but could not implemented at all when texture samples are small dimensions caused by low quality of images. Wavelet extension procedure is used to determine the frequency bands carrying the most information about the texture by decomposition images into multiple frequency bands and to form an image approximation with higher resolution. Thus, wavelet extension procedure offers the ability to robust feature extraction in
images. The gray level co-occurrence matrices are computed for each sub-band. The feature vector of testing image and other feature vector as normal image classified by Mahalanobis distance to decide whether the test image is infarction or not
Malay Mathematics Based on Terengganu Inscription
We exhibit the Malay Mathematics in the 14th century Terengganu Inscription dated 702H, that is 1303. There are several mathematical elements that we classify as Malay numbers (cardinal and ordinal), units of measurement, position (location and position in a family), elements of logic, and time (day, month and year). We also give an equivalent amount of fine imposed to convicts as listed in the inscription
When a Bilingual Child Describes Living Things: An Analysis of Conceptual Understandings from a Language Perspective.
With increasing numbers of students learning science through a second language in many school contexts, there is a need for research to focus on the impact language has on students’ understanding of science concepts. Like other countries, Brunei has adopted a bilingual system of education that incorporates two languages in imparting its curriculum. For the first three years of school, Brunei children are taught in Malay and then for the remainder of their education, instruction is in English. This research is concerned with the influence that this bilingual education system has on children’s learning of science. The purpose was to document the patterns of Brunei students’ developing understandings of the concepts of living and non-living things and examine the impact in the change in language as the medium of instruction. A cross-sectional case study design was used in one primary school. Data collection included an interview (n = 75), which consisted of forced-response and semi-structured interview questions, a categorisation task and classroom observation. Data were analysed quantitatively and qualitatively. The results indicate that the transition from Malay to English as the language of instruction from Primary 4 onwards restricted the students’ ability to express their understandings about living things, to discuss related scientific concepts and to interpret and analyse scientific questions. From a social constructivist perspective these language factors will potentially impact on the students’ cognitive development by limiting the expected growth of the students’ understandings of the concepts of living and non-living things
Multi slot amplitude coding technique for high speed optical fiber communication system
The rapid progress of the high speed optical communications system is driven by the exponential growth of users demand on information and services. The trend towards high speed and high capacity transmission system are multiplexing technique such as electrical time division multiplexing (ETDM) and duty cycle division multiplexing (DCDM). Unfortunately, ETDM bit rate is limited by the speed of electronic devices and DCDM suffers from increased spectral width when the number of tributary increased. Therefore, in this research, a new multiplexing technique is proposed, known as Multi Slot Amplitude Coding (MSAC). In this technique, three, four and five tributaries can be achieved with less number of slots compared to DCDM. The performance of 310 Gbit/s MSAC is -26 dBm for receiver sensitivity (RS) and 25.5 dB for optical signal-to-noise ratio (OSNR). The improvement of 3.5 dB for RS and 3.7 dB for OSNR are obtained when optimize level spacing is implemented. When compared to DCDM, the spectral width is reduced by around 25%, not less than 55% improvement of chromatic dispersion (CD) tolerance, 0.6 dB better RS, and 1.5 dB better OSNR. The spectral width for 310 Gbit/s, 410 Gbit/s and 510 Gbit/s MSAC is 60 GHz, which indicates improvement of spectral efficiency. Optical spectrum of MSAC has spectral line at 10 GHz to provide an accurate clock frequency at symbol rate. In addition the performance of MSAC technique is simulated under self phase modulation (SPM) effect. The result shows that the maximum launched optical power is +12.79 dBm and +12.62 dBm for 50 km and 80 km standard single mode fiber (SSMF) with 100% compensation of dispersion using dispersion compensation fiber (DCF) at receiver. Moreover, SPM threshold improves around 2.7 dB when adopting the pre and post dispersion compensation method
Morphological and molecular characterization of Fusarium. solani and F. oxysporum associated with crown disease of oil palm
Micro Entreprise Empowerment Model Through Islamic Financial Service Cooperative (Study in Indonesia-Malaysia)
Micro-enterprise is a business that dominating the economy of Indonesia and Malaysia. The main problem faced by micro businesses is the issue of capital. The existence of Islamic financial service cooperative is expected to solve the problems of capital for micro-enterprises. Based on these descriptions then this study wanted to exercise how the empowerment model of micro enterprises implemented through enterpreneurs empowerment by Islamic financial service cooperative (IFSC). This study used qualitative methods to explore micro enterprises empowerment in order to get a micro business empowerment model. Both in Indonesia as well as Malaysia empowering micro businesses by IFSC appears from its ability to obtain capital, able to motivate the group, and was able to get access to the Government. The difference is in the intensity of the attention of the Government, the Government of Malaysia more intense attention on micro enterprises, so that micro enterprises more easily get access to the goverment and other financial institutions. Type of Paper: Empirical
Keywords: Micro Entreprise; Islamic Financial; Service Cooperative; Empowerment, Mode
Comparative study ofthe computational fluid dynamics and fluid structure interaction analysis in human airways flow
Numerous studies have been done in order to get the most accurate result that represents the flow characteristics inside the human trachea. Numerical method was the most favorite type of study chosen to simulate the model due to the complexity of the geometry and difficulties to get the real trachea to do the experimental works. In this study, one actual healthy model of human trachea was reconstructed in order to compare, the different of the velocity and pressure distribution between two types of numerical modeling analysis: Computational Fluid Dynamics (CFD) and Fluid Structure Interaction (FSI) analysis. The model was extracted using the Computed Tomography (CT) scan images to maintain the realistic geometry. Velocity, 1.24 m/s was used at the inlet and the variations of the velocity and pressure distribution along the trachea were observed. The results shown that, the implementation of the FSI technique did produce different result and flexibility of the structure wall did influence the distribution of the velocity and pressure along the trachea
Speed up Robust Features (SURF) with Principal Component Analysis-Support Vector Machine (PCA-SVM) for benign and malignant classifications
A novel Computer Aided Diagnosis (CADx) component is proposed for breast cancer classifications. Four major phases were conducted in this research. The first phase is pre-processing, this is followed by features extraction phase by using the Speed Up Robust Features (SURF). The next phase is features selection by using the Principal Component Analysis (PCA). The final phase is the classification phase to classify the cancer. Three different classifiers; Support Vector Machine (SVM), Linear Discriminant Analysis (LDA) and Decision Tree (DT) were compared in this research. Results obtained shows that the PCA-SVM performs the highest accuracy with 92.9% accurate compared to other classifiers.Keywords: breast cancer; CADx; SURF; PCA; SV
Impact satisfaction factors of ecotourism for sustainable tourism business and management
In almost all real-world problems, consideration of multiple-criteria decisions requires the decision maker to make constructive decisions to obtain the desirable outcomes. A multiple-criteria decision making tool is the Analytic Hierarchy Process (AHP) which is frequently used in most applications involving decision making. Since Sabah is well known for its natural and rich resources, ecotourism has a significant potential to enhance the tourism industry. This paper aims to determine the satisfaction factors of tourists visiting Sabah and specifically in the ecotourism industry. The four-step modelling procedure for a decision model using AHP is introduced. It includes the pairwise comparison table, building of the normalised matrix, weightage determination, and finally, the consistency ratio of the overall main criteria. The ranking of the main and sub-criteria are then made so that the best main and sub-criteria related to tourist satisfaction are identified. The results showed that the top criteria preferred by tourists for eco-tourism is safety, followed by benefits, activities, services and finally destination. The most strongly preferred sub-criteria for destination is 'interest', for benefit is 'relaxing and fulfilling', for activities is 'experiencing nature and beautiful scenery', for safety is 'concerned personal Safety and security', and for service is 'on time service to tourists'. All preferred factors have met the values of inconsistency of less than 0.1 (<0.1). Findings of these impact factors towards ecotourism may enhance further adventurous and physical challenges at Sabah ecotourism hotspots by introducing, increasing and developing more adventurous activities, inclusive of notified safety and security, which needs sustainable tourism management. In conclusion, tourists are said to be very satisfied with the ecotourism industry in Sabah as indicted in their great positive responses, hence creating more tourism businesses
Identifying national security fundamentals in the big data of digital asymmetrical environment communication
This conceptualization article discusses the impact of technology to society from variousperspectives which relates on humanities aspect of social convention, hegemony, generation warfare and intelligence constructs.The narratives provide understandings of the current transition, emphasizing the changing need of intelligence protocols to understand the society in current technological advancement era. Intelligence output is detrimental as information is no longer secluded in this borderless communication spheres. The article narrates generation warfare intelligence in complex information system of digital asymmetrical environment in current generation warfare to digest the social implications and of technology to society and provides appropriate recommendations.Keywords: communication; generation warfare; hegemony; intelligence; society; socialconvention
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