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28,188 Article Results

A Designing Dairy Cattle Facilities Based on Statics and Dynamic Zoometry by Using Artificial Neural Network

10.12928/telkomnika.v15i1.4677
Sugiono; Brawijaya University Sugiono , Rudy; Brawijaya University Soenoko , Rio; Brawijaya University L Lukodono
The dairy cattle productivity is very depending on the quality of their facilities and their environment condition. A lot of researches have been done in this area, but it is not developing the knowledge of animal dimensions and behaviours correlated with their facilities design. Complexities of dynamics zoometry is very depending on cow behaviours that it forced to use neural network (NN) approaching. Hence, the purposes of the paper  is to create the concept of static and dynamic zoometry approach to guide the ergonomics facilities design and the modern of dairy cattle house based on zoometry data by using artificial neural network. The research is started with study literature of anthropometry, CAD design, dairy cattle, facility design and neural network. The next step is collecting the data of cow dimensions for static zoometry (17 variables) and cow behaviours for developing the concept of dynamics zoometry (5 variables). The static data is used as input factor and dynamic data as desire of Back Propagation NN model. The result of BPNN training is used to design the dairy cattle facilities, e.g. 3D CAD house with minimal length = 357.67 cm, minimal width = 132.03 cm (per tail) and minimal height = 205.28 cm. Finally, the paper is successfully developed the concept of zoometry approach and BPNN model as pioneer of implementing comfort knowledge.
Volume: 15
Issue: 1
Page: 399-406
Publish at: 2017-03-01

Correlation of Objective Assessment of Facial Paralysis with House-Brackmann Score

10.12928/telkomnika.v15i2.6128
Wan; Universiti Malaysia Pahang Syahirah W Samsudin , Rosdiyana; Universiti Malaysia Pahang Samad , Kenneth; Universiti Teknikal Malaysia Melaka Sundaraj , Mahfuzah; Universiti Malaysia Pahang Mustafa , Nor; Universiti Malaysia Pahang Rul Hasma Abdullah
This article illustrated a brief review of some objective methods in assessing facial nerve function for facial nerve paralysis which were correlated with House-Brackmann Grading System (HBGS). A rigorous search of online databases such as Springer, Elsevier and IEEE was conducted from June, 2015 to November, 2016 to discover and analyze the previous works in facial nerve assessment methods for facial paralysis. Several domains such as facial grading system and methods used to evaluate the facial nerve function were extracted for further analysis. Different keywords were used to acquire the studies based on the desire criteria. A total of 8 articles were identified and were analyzed for inclusion in this search. In conclusion, this review has presented an initial overview for further improvements in objective facial nerve assessment which has to be correlated with subjective assessment to make it more reliable and useful in clinical practice. 
Volume: 15
Issue: 2
Page: 829-835
Publish at: 2017-03-01

Exploration of the Potential of Reclaimed Waste Cooking Oil for Oil-Immersed Power Transformers

10.12928/telkomnika.v15i2.6151
Imran; Universiti Teknikal Malaysia Melaka Sutan Chairul , Sharin; Universiti Teknikal Malaysia Melaka Ab Ghani , Hidayat; Universiti Teknikal Malaysia Melaka Zainuddin , Nor; Universiti Teknikal Malaysia Melaka Hidayah Rahim , Mohd; Kawasan Institusi Penyelidikan Kajang Aizam Talib , Nor; Universiti Teknikal Malaysia Melaka Hafiz Nor Rahman
In this study, reclaimed waste cooking oil is proposed as an alternative insulating liquid for oil-immersed power transformers. Reclamation is carried out by heating a mixture of waste cooking oil and Fuller’s Earth adsorbent and followed by filtration. Propyl gallate antioxidant is then added into the filtered oil. Four oil samples are investigated in this study: (1) new cooking oil (NCO), (2) waste cooking oil (WCO), (3) reclaimed oil (RWCO) and (4) reclaimed oil with propyl gallate antioxidant (RWCOPG). The AC breakdown voltage, moisture content and total acid number is measured for all oil samples according to the ASTM D1816, ASTM D1533 and ASTM D974 standard test method, respectively. The results show that the AC breakdown voltage is highest for the RWCOPG sample (28.08 kV), which is 0.4% higher than the standard requirement of 20 kV. The moisture content for this sample is 180.60 ppm, which is still below the allowable limit of 200 ppm. However, the total acid number is highest for the RWCOPG sample which suggests that it has high acidity. It is indicated that the antioxidant-reclaimed waste cooking oil has potential to be used as an insulating liquid for oil-immersed power transformers, but much work is still needed to reduce the total acid number of this oil.
Volume: 15
Issue: 2
Page: 957-963
Publish at: 2017-03-01

Image De-noising on Strip Steel Surface Defect Using Improved Compressive Sensing Algorithm

10.12928/telkomnika.v15i1.3164
Dongyan; Hebei University of Technology Cui , Kewen; Hebei University of Technology Xia , Jingzhong; Hebei University of Technology Hou , Ahmad; Hebei University of Technology Ali
De-noising for the strip steel surface defect image is conductive to the accurate detection of the strip steel surface defects. In order to filter the Gaussian noise and salt and pepper noise of strip steel surface defect images, an improved compressive sensing algorithm was applied to defect image de-noising in this paper. First, the improved Regularized Orthogonal Matching Pursuit algorithm was described. Then, three typical surface defects (scratch, scar, surface upwarping) images were selected as the experimental samples. Last, detailed experimental tests were carried out to the strip steel surface defect image de-noising. Through comparison and analysis of the test results, the Peak Signal to Noise Ratio value of the proposed algorithm is higher compared with other traditional de-noising algorithm, and the running time of the proposed algorithm is only26.6\% of that of traditional Orthogonal Matching Pursuit algorithms. Therefore, it has better de-noising effect and can meet the requirements of real-time image processing.
Volume: 15
Issue: 1
Page: 540-548
Publish at: 2017-03-01

Intelligent Control of Wind/ Photovoltaic Microgrid Information Fusion

10.12928/telkomnika.v15i1.3961
Jianhong; Research center for renewable energy generation engineering, Ministry of Education, HoHai University Zhu , Wen-xia; Institute of Electrical Engineering, Nantong University, Nantong JiangSu, China Pan
A full-function Micro-grid must have an advanced energy storage device. Intelligent control with multi-information fusion was proposed in this paper. Control targets were acquired by mixed application of various strategies, such as Micro-grid peak load shifting be used to reduce State Utility Grid (SUG) supply pressure, SUG connection be controlled flexibly to maintain Micro-grid load working reliably, Micro-grid power production and load supply demands of SUG and Micro-grid be predicted to plan battery energy storage in advance, actual monitoring date be used to control overcharge and over-discharge, State of Charge (SOC) be managed to realize battery efficient storage  and full life cycle as far as possible. All designs were integrated with forecasting and monitoring data from different locations, such as Micro-grid supply side and demand side, the SOC of storage system, the active and reactive power from SUG side, so as to control the battery charge and discharge behavior and SUG connection operation dynamically. Micro-grid could not only operate stand-alone by self-supply in most cases, in the case of power production surplus or equipment malfunction, the Micro-grid could also delivery energy to SUG or take power from the SUG flexibly. The scheme used fully of new energy, could ensure region power supply reliably and be used widely in application.
Volume: 15
Issue: 1
Page: 264-272
Publish at: 2017-03-01

Battery Charge Control by State of Health Estimation

10.11591/ijeecs.v5.i3.pp508-514
Pradita O. Hadi , Goro Fujita
Battery lifetime is one of importance consideration in smart system with energy storage system, because it is shorter than others. Extended of battery lifetime can give benefit to entire system, especially to reduce cost. The lifetime is commonly estimated by State of Health (SOH). Decreasing of SOH indicates degradation of battery. It can be influenced by the battery operation, so that operational management is needed. This study proposes control block for charging battery by using decreasing value of SOH as reference. The control block is implemented in battery system that connected to DC bus by bidirectional chopper. Numerical simulation study is performed by using PSIM software version 10.0. The result shows that the proposed block control is successfully used. Moreover, the relative error is less than 2% for delta SOH and less than 1% for battery power.
Volume: 5
Issue: 3
Page: 508-514
Publish at: 2017-03-01

Automatic Summarization in Chinese Product Reviews

10.12928/telkomnika.v15i1.5099
Li zhen; Capital Normal University Liu , Wan di; Capital Normal University Du , Han shi; Capital Normal University Wang , Wei; Capital Normal University Song
With the increasing number of online comments, it was hard for buyers to find useful information in a short time so it made sense to do research on automatic summarization which fundamental work was focused on product reviews mining. Previous studies mainly focused on explicit features extraction whereas often ignored implicit features which hadn't been stated clearly but containing necessary information for analyzing comments. So how to quickly and accurately mine features from web reviews had important significance for summarization technology. In this paper, explicit features and “feature-opinion” pairs in the explicit sentences were extracted by Conditional Random Field and implicit product features were recognized by a bipartite graph model based on random walk algorithm. Then incorporating features and corresponding opinions into a structured text and the abstract was generated based on the extraction results. The experiment results demonstrated the proposed methods outpreferred baselines.
Volume: 15
Issue: 1
Page: 373-382
Publish at: 2017-03-01

Aromatic Herbs Classification by using Discriminant Analysis Techniques

10.11591/ijeecs.v5.i3.pp530-535
N. F.M. Radzi , A. Che Soh , A. J. Ishak , M. K. Hasan , U. K. Mohamad Yusof
An electronic nose was used to distinguish between selected herb samples according to their family group species. This paper aims to evaluate the potential of using the electronic nose to characterize three groups of families of twelve herb species based on the discriminant analysis approach. The feature extraction involves the use of a signal processing technique that simplifies classification and yields optimal results. Two discriminant techniques:- the principal component analysis (PCA) and the multiple discriminant analysis (MDA) were used to investigate the potential to distinguish herb species between several herbs within the same family group. The results showed that the twelve herb species can be better classified using the MDA method compared to the PCA method.
Volume: 5
Issue: 3
Page: 530-535
Publish at: 2017-03-01

Harmful Gases Profiling in Meru Menora Tunnel using SICK Sensor

10.12928/telkomnika.v15i2.6141
A. N.; Persada PLUS Baharun , N. A.; Universiti Teknologi Malaysia Murad , N. N. N. A.; Universiti Teknologi Malaysia Malik
This paper discusses the study on the measured harmful gases due to traffic emission in the Meru Menora Tunnel, a Malaysia highway tunnel. The hazardous gasses data would help in promoting essential ventilation system inside the tunnel for the health and safety of the users. The emission gasses concentration reading is divided into two main components comprise of Nitrogen Dioxide (NO2), and Carbon Monoxide (CO). Other than that, the visibility also been measured by using SICK sensor. The measurement has been done during normal, festive and school holiday seasons. Festive season shows the highest number of traffic and thus giving the worst air quality. Ventilation fan system can be activated based on the concentration level of gases and visibility in the tunnel.
Volume: 15
Issue: 2
Page: 888-894
Publish at: 2017-03-01

QFD and Fuzzy AHP for Formulating Product Concept of Probiotic Beverages for Diabetic

10.12928/telkomnika.v15i1.3555
Imam; Universitas Brawijaya Santoso , Miftahus; Universitas Brawijaya Sa’adah , Susinggih; Universitas Brawijaya Wijana
In Indonesia, the number of diabetics is increasing. In term of age, people suffered diabetes at the age of 20-79 years old in the past, but now young people also suffer it. Some of the attempts to contain uncontrollable effects of diabetes are to implement healthy lifestyle and to control type or amount of consumed foods. One type of product to ease the risks of Type 2 Diabetes Mellitus is dairy product, and its derivatives.  One example of the product is probiotic. This research is intended to design yoghurt product for diabetic consumption, using quality function deployment (QFD) and fuzzy Analythical hierarchy process (fuzzy AHP) methods. This research shows that the technical responses, that serve the priority to develop probiotic product for diabetics, are the use of low-calorie sugar and skimmed milk, and the addition of high-fiber ingredients.
Volume: 15
Issue: 1
Page: 391-398
Publish at: 2017-03-01

A Novel Text Classification Method Using Comprehensive Feature Weight

10.12928/telkomnika.v15i1.4303
Jian; Pingxiang University Liu , Weisheng; Pingxiang University Wu
Currently, since the categorical distribution of short text corpus is not balanced, it is difficult to obtain accurate classification results for long text classification. To solve this problem, this paper proposes a novel method of short text classification using comprehensive feature weights. This method takes into account the situation of the samples in the positive and negative categories, as well as the category correlation of words, so as to improve the existing feature weight calculation method and obtain a new method of calculating the comprehensive feature weight. The experimental result shows that the proposed method is significantly higher than other feature-weight methods in the micro and macro average value, which shows that this method can greatly improve the accuracy and recall rate of short text classification.
Volume: 15
Issue: 1
Page: 383-390
Publish at: 2017-03-01

Statistical Technique in Gas Dispersion Modeling Based on Linear Interpolation

10.12928/telkomnika.v15i2.6109
M.; Universiti Teknologi Malaysia S. Azwan Ramli , M.; Universiti Teknologi Malaysia Shukri Z.A
In this paper, we introduced statistical techniques in creating a gas dispersion model in an indoor with a controlled environment. The temperature, air-wind and humidity were constant throughout the experiment. The collected data were then treated as an image; which the pixel size is similar to the total data available for x and y axis. To predict the neighborhood value, linear interpolation technique was implemented. The result of the experiment is significantly applicable in extending the total amount of data if small data is available.
Volume: 15
Issue: 2
Page: 733-738
Publish at: 2017-03-01

Potential Field Based Motion Planning with Steering Control and DYC for ADAS

10.12928/telkomnika.v15i2.6132
Nurbaiti; Universiti Teknologi MARA Universiti Teknologi Malaysia, Wahid , Hairi; Universiti Teknologi Malaysia Zamzuri , Nurhaffizah; Universiti Teknologi MARA Universiti Teknologi Malaysia, Hassan , Mohd; Universiti Teknologi Malaysia Azizi Abdul Rahman
In this study, the development of motion planning and control for collision avoidance driver assistance systems is presented. A potential field approach has been used in formulating the collision avoidance algorithm based on predicted vehicle motion. Then, to realize the advanced driver assistance systems (ADAS) for collision avoidance, steering control system and direct yaw moment control (DYC) is designed to follow the desired vehicle motion. Performance evaluation is conducted in simulation environment in term of its performance in avoiding the obstacles. Simulation results show that the vehicle collision avoidance assistance systems can successfully complete the avoidance behavior without colliding.
Volume: 15
Issue: 2
Page: 853-860
Publish at: 2017-03-01

Research on topology control in WSNs based on complex network model

10.12928/telkomnika.v15i1.3854
Chuanyun; School of Information Engineering, East China Jiaotong University Wang , Yin; School of Software, East China Jiaotong University Yan
This paper is under in-depth investigation due to suspicion of possible plagiarism on a high similarity indexA topology control algorithm based on mutual selection mechanism is proposed, combined with complex network model. It adopts node strength and spacing between nodes as the measuring parameters, selects the cluster head nodes based on mutual selection mechanism in the communication radius of nodes and builds the hierarchical topology. The algorithm can improve the clustering efficiency, shorten the average path length, save the energy of the nodes. The simulation and analysis of network evolving process and algorithm model are completed using MATLAB tools and the results verify the correctness and stability of the proposed algorithm model. The algorithm is suitable for large-scale node deployment in WSNs.
Volume: 15
Issue: 1
Page: 430-437
Publish at: 2017-03-01

Dynamic Economic Dispatch Problems: PSO Approach

10.12928/telkomnika.v15i1.4618
Mohd Ruddin; Universiti Teknikal Malaysia Melaka Ab Ghani , Saif Tahseen; Ministry of Electricity, Baghdad Hussein , Nur Huda; Universiti Teknikal Malaysia Melaka Mohd Amin , Zanariah; Universiti Teknikal Malaysia Melaka Jano , Tole; Universitas Ahmad Dahlan Sutikno
Due to limited availability of coal and gases, optimization plays an important factor in thermal generation problems. The economic dispatch problems are dynamic in nature as demand varies with time. These problems are complex since they are large dimensional, involving hundreds of variables, and have a number of constraints such as spinning reserve and group constraints. Particle Swarm Optimization (PSO) method is used to solve these challenging optimization problems. Three test cases are studied where PSO technique is successfully applied.
Volume: 15
Issue: 1
Page: 48-61
Publish at: 2017-03-01
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