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29,602 Article Results

Algorithm to Convert Signal Interpreted Petri Net Models to Programmable Logic Controller Ladder Logic Diagram Models

10.11591/ijeecs.v10.i3.pp905-916
Z. Aspar , Nasir Shaikh-Husin , M. Khalil-Hani
Signal Interpreted Petri Nets (SIPN) modeling has been proposed as an alternative to Ladder Logic Diagram (LLD) modeling for programming complex programmable logic controllers (PLCs) due to its high level of abstraction and functionalities. This paper proposes an algorithm to efficiently convert existing SIPN models to their LLD models equivalences. In order to automate and speed up the conversion process, matrix calculation approach is used. A complex SIPN model was used to show that existing conversion technique must be expanded in order to cater for a more complex SIPN models.
Volume: 10
Issue: 3
Page: 905-916
Publish at: 2018-06-01

Interpretability Evaluation of Annual Mosaic Image of MTB Model for Land Cover Changes Analysis

10.12928/telkomnika.v16i3.9331
Muhammad; Ministry of Research, Technology, and Higher Education; and University of Indonesia Dimyati , Ratih Dewanti; LAPAN and Gadjah Mada University Dimyati , Kustiyo; LAPAN Kustiyo , Projo; LAPAN and Gadjah Mada University Danoedoro , Hartono; LAPAN and Gadjah Mada University Hartono
To verify whether the annual mosaic image of MTB model is acceptable for further digital analysis, it is necessary to evaluate the visual interpretability. The MTB model is an effort to integrate multi-scene and multi-temporal data, to obtain a minimum cloud cover mosaic image in locations that are often covered by clouds and haze. This study is to evaluate the interpretability of the annual mosaic image for analysis of the land cover changes. The data used are the images of 2015, 2016, and 2017 covers a part of central Sumatra. Visual interpretations with a series of steps are used, starting with identification of the objects using interpretation keys, followed by spectral band correlations, scattergram analysis, and ended by consistency assessment. The consistency assessment step is performed to determine the level of clearness and easiness of the object recognition in the annual mosaic images. The results showed that the most optimal spectral bands used for RGB combinations for visual interpretation were Band SWIR-1, Band NIR, and Band Red. Based on the evaluation results, the annual mosaic image of MTB model performed the consistent results of the clearness objects and the easiness of the object recognition. Thus the annual mosaic image of MTB model of 0.02x0.02 degree tile is acceptable for further digital processing as well as digital land cover analysis.
Volume: 16
Issue: 3
Page: 934-945
Publish at: 2018-06-01

A New CMOS Fully Differential Low Noise Amplifier for Wideband Applications

10.12928/telkomnika.v16i3.7630
Majid; University of Birjand Takbiri , Hadi; University of Birjand Zarei , Abolfazl; University of Birjand Bijari
In this paper, a multi-stage fully differential low noise amplifier (LNA) has been presented for wideband applications. A common-gate input stage is used to improve the input impedance matching and linearity. A common-source stage is also used as the second stage to enhance gain and reduce noise. A shunt-shunt feedback is employed to extend bandwidth and enhance linearity. The proposed low noise amplifier has been designed and simulated using RF-TSMC 0.18 μm CMOS process technology. In frequency band of 3.5-7.5 GHz, this amplifier has a flat power gain (S21) of 16.5 ± 1.5 dB, low noise figure (NF) of 3dB, input (S11) and output (S22) return losses less than -10 dB and high linearity with input thirdorder intercept point (IIP3) of -3dBm. It’s power consumption is also less than 10 mw with low power supply voltage of 0.8v.
Volume: 16
Issue: 3
Page: 1083-1091
Publish at: 2018-06-01

A Review of Hybrid Battery Management System (H-BMS) for EV

10.12928/telkomnika.v16i3.8743
Nur Huda; Universiti Teknikal Malaysia Melaka Mohd Amin , Mohd Ruddin; Universiti Teknikal Malaysia Melaka Ab Ghani , Auzani; Universiti Teknikal Malaysia Melaka Jidin , Zanariah; Universiti Teknikal Malaysia Melaka Jano , Tole; Universitas Ahmad Dahlan Sutikno
Significant to a major pollution contributor in passenger vehicles, electric vehicles are more acceptable to use on the road. Electric Vehicles (EVs) burn energy based on the usage of the battery. The usage of the battery in EVs is monitored and controlled by Battery Management System (BMS). A few factors monitor and control Battery Management System (BMS). This paper reviewed the battery charging technology and Remote Terminal Unit (RTU) development as a Hybrid Battery Management System (H-BMS) for Electric Vehicle (EV).
Volume: 16
Issue: 3
Page: 1004-1012
Publish at: 2018-06-01

Selecting User Influence on Twitter Data Using Skyline Query under MapReduce Framework

10.12928/telkomnika.v16i3.4624
Ahmad Luky; Institut Pertanian Bogor Ramdani , Taufik; Bogor Agricultural University Djatna , Heru; Bogor Agricultural University Sukoco
The aim of this research was to select and identify user influence on Twitter data. In identification stage, the method proposed in this study was matrix Twitter approach, sentiment analysis, and characterization of the opinion leader. The importan characteristics included external communication, accessibility, and innovation. Based on these characteristics and information from Twitter data through matrix Twitter and sentiment analysis, a algorithm of skyline query was constructed for the selection stage. Algorithm of skyline query selected user influence by comparing with other users according to values of each characteristic. Thus, user influence was indicated as user that was not influenced by other users in any combination of skyline objects. The use of MapReduce framework model in identification and selection stage, support whole operation where Twitter had big size data and rapid changes. The results in identification and selection of user influence exhibited that MapReduce framework minimized the execution time, whereas in parallel skyline query could reveal user influence on the data.
Volume: 16
Issue: 3
Page: 1416-1425
Publish at: 2018-06-01

Smart Garage Implementation and Design Using Whatsapp Communication Media

10.12928/telkomnika.v16i3.8063
Rendy; Telkom University Munadi , Arief; Telkom University Rakhman , Doan; Telkom University Perdana
WhatsApp is a social networking app that serves as a communication medium. According to the Online Audience Measurement Standards named comScore, in 2017, WhatsApp application users in Indonesia amounted to 35.8 million people. As the most popular mobile application with the most users in the country, in this research the authors chose Whatsapp as a communication medium that will be integrated into one application of Internet of Things (IoT), that is Smart Garage. Smart Garage is a combination of information technology and computing technology that is applied to a house by relying on efficiency and device automation. The results of this research shows that it is better to use mobile data networks than using the wireless networks. The maximum delay when using mobile data is 7.5 s and 7.7 s when using wireless networks. The research using WhatsApp application still rare especially in the field of IoT.
Volume: 16
Issue: 3
Page: 1107-1113
Publish at: 2018-06-01

Autonomous Traffic Signal Control using Decision Tree

10.11591/ijece.v8i3.pp1522-1529
Rithesh R N , Vignesh R. , Anala M. R.
The objective of this paper is to introduce an effective and efficient way of traffic signal light control to optimize the traffic signal duration across each lanes and thereby, to minimize or completely eliminate traffic congestion. This paper introduces a new approach to resolve the traffic congestion problem at junctions by making use of decision trees. The vehicle count in the real time traffic video is determined by Image Processing technique. This information is fed to the decision tree based on which the decision is made regarding the status of traffic signal lights of each lane at the junction at any given instant of time.
Volume: 8
Issue: 3
Page: 1522-1529
Publish at: 2018-06-01

Fusion of Random Projection, Multi-Resolution Features and Distance Weighted K Nearest Neighbor for Masses Detection in Mammographic Images

10.11591/ijeecs.v10.i3.pp1030-1035
Viet Dung Nguyen , Minh Dong Le
Breast cancer is the top cancer in women both in the developed and the developing world. For early detection of the disease, mammography is still the most effective method beside ultrasound and magnetic resonance imaging. Computer Aided Detection systems have been developed to aid radiologists in diagnosing breast cancer. Different methods were proposed to overcome the main drawback of producing large number of False Positives.  In this paper, we presented a novel method for masses detection in mammograms. To describe masses, multi-resolution features were utilized. In feature extraction step, we calculated multi-resolution Block Difference Inverse Probability features and multi-resolution statistical features. Once the descriptors were extracted, we deployed random projection and distance weighted K Nearest Neighbor to classify the detected masses. The result is quite sanguine with sensitivity, false positive reduction and time for carrying out the algorithm
Volume: 10
Issue: 3
Page: 1030-1035
Publish at: 2018-06-01

The Effect of Tender Coconut Water on Free Radical Due to Mercury Exposure

10.11591/ijphs.v7i2.11849
Siti Thomas Zulaikhah , Joko Wahyu Wibowo
Mercury pollution can results from gold mining. Furthermore, a continuous mercury exposure can trigger the formation of Reactive Oxygen Species (ROS) and interfere with the body's antioxidant metabolism. A high level of free radicals in the body can be characterized by a low level of an antioxidant enzyme. Prevention to avoid the impacts of mercury poisoning is better than treatment. Tender coconut water can eliminate ROS and improve antioxidant status. This study aimed to was to confirm that tender coconut water is able to decrease the free radical which is characterized by increased antioxidant enzyme GPx status. This study was designed as randomized pre- and posttest control group design, 40 traditional gold mining workers devided into 2 groups: the control and treatment groups. After the pre test of GPx level, the workers were either given tender coconut water at the dose of 450 m L or water for 4 weeks every day. Four weeks after the pre-test, the level of GPx was assessed in the laboratory PAU-Gajahmada University. The post test results of the control group and treatments group were compared and analyzed using Man Whitney test. The mean levels of GPx post-test in the control group and treated group were 63.5±1.1 U/mL and 79.9±8.8 U/mL respectively. The analysis result obtained p-value 0.000 <0.05. Tender coconut water has an effect on free radicals due to to mercury exposure. Tender coconut water can be consumed daily to prevent degenerative diseases caused by mercury exposure.
Volume: 7
Issue: 2
Page: 102-106
Publish at: 2018-06-01

Trajectory and Determinant of Functional Independence among Patient with Traumatic and Non-Traumatic Spinal Cord Injury

10.11591/ijphs.v7i2.13249
Yudha Mathan Sakti , Astri Ferdiana , Dananjaya Putramega , Zikrina A. Lanodiyu , Galih Prasetya Sakadewa , Rahadyan Magetsari
The level of functional independence was directly proportional to life satisfaction and quality of life in patients with spinal cord injury. By knowing the determinants that predict changes in functional independence, medical treatment and rehabilitation can be better planned to improve the patient’s quality of life. We conducted a prospective cohort study on 49 patients with spinal cord injury at Dr. Sardjito general hospital Yogyakarta from April to June 2016. The data were taken before patient underwent surgery, before discharged from the hospital, and 3 months after underwent surgery. We found that most common spinal cord injury was at the level of lumbar vertebra with 28 patients (58%). There was a positive trajectory of the patients with spinal cord injury with ASIA grade B-E classification. However, patients with spinal cord injury with ASIA classification grade A have a neutral trajectory.We conclude there was a positive trajectory between functional independence and traumatic or non-traumatic spinal cord injury except in patients with ASIA grade A classification spinal cord injury. The determinants that affected the trajectory of patients with spinal cord injury were the level of the injured vertebra and severity of the neurological deficit. 
Volume: 7
Issue: 2
Page: 145-150
Publish at: 2018-06-01

Compact Meander Line Telemetry Antenna for Implantable Pacemaker Applications

10.11591/ijeecs.v10.i3.pp883-889
N. H. Sulaiman , N. A. Samsuri , M. K. A. Rahim , F. C. Seman , M. Inam
The demand for health technology is increasing rapidly especially in telemetry applications. These applications generally use implanted antennas to be utilized for data transfer from patients to another reader device. This procedure can make the health care more efficient, since it provides fast diagnosis and treatment to the patient. This work presents a design of telemetry antenna to be used in Pacemaker application in Medical Implant Communication Services (MICS) (401 MHz-406 MHz). By introducing Compact Meander Line Telemetry Antenna (CMLTA), length (Ls) and width (Ws) of substrate have been reduced by 36.84% and 40% respectively. The proposed antenna offers advantages of easy fabrications, low cost and light weight with a 133 MHz bandwidth.
Volume: 10
Issue: 3
Page: 883-889
Publish at: 2018-06-01

The Effect of Kangaroo Mother Care Method toward Weight Gain and Length of Stay among Low Birth Weight Baby

10.11591/ijphs.v7i2.12632
Muliani Muliani , Lisnawati Lisnawati
Infant mortality needs to get serious attention. Special efforts are relatively easy and inexpensive in the handling and care is through treatment methods can improve the stability ofKangaroo Mother Care(KMC) for babies and breastfeeding.The effort hopefully will contribute to weight gain which take effect on the duration of treatment. The study design was Quasi Experiment with Prepost one group design. Samples were mothers with a history of low birth weight deliveries, with sample selection technique in consecutive sampling and sample number 36 babies. The samples criteria were infants birth weight between 1,000-2,100 gr, weight of infant when KMC was started between 900-2,100 gr, weight of infants post KMC were 1,300-2,500 gr, babies born with premature or small period of pregnancy. KMC method has the potential to improve the Weight on Low Birth Weight (LBW).Duration of KMC has no effect on weight gain but can accelerate the length of LBW in hospital. The longer do KMC, the shorter duration of hospital LBW in hospital. LBW should be treated KMC to accelerate weight gain and reducing the length of hospitalization. 
Volume: 7
Issue: 2
Page: 91-96
Publish at: 2018-06-01

Fine-Grained Overhead Characterisation of Cross-ISA DBTO for Multicore Processor

10.11591/ijeecs.v10.i3.pp1036-1044
Joo-On Ooi , Fawnizu Azmadi Hussin , Mohd. Nordin Zakaria
The emergence of modern portable software, start to behaved hybrid short-long running combined applications, in which an active apps may invoked others to fulfill task requirements. Thus the implementation of Dynamic Translation and Optimisation (DBTO) into heterogeneous multicore system-on-chip (SoC) will require careful re-study, to ensure efficient usage of most available cores. In order to improve efficiency in supporting this Instruction Set Architecture (ISA) diversity of computing platforms, mix modes of statically and dynamically Binary Translation and Optimization system, or DBTO, need to utilize concurrent compilation techniques, to better service the combined applications processing. This research deep dived into finer-grained DBTO overhead analysis, to provide categorization and characterization of overhead sources in breakdown stages during concurrent instruction processing. A dual-engine of translation and optimization is constructed for finer managemnt of start-up overheads. Helper functions, i.e. LoadLink/StoreCondition (LL/SC) are derived from atomic instructions, to create multiple helper thread supported by multiple host cores, for better instruction translation and optimization operation concurrently. Our experiment platform, evaluated through PARSEC-3.0 benchmark suite, shows performance improvement approaching 2.0x for apps based programs and 1.25x for kernel based programs, for x86 to X86-64 emulation. This technique possess great potential and serve as research based platform for future binary translation technique development, including adaptive method.
Volume: 10
Issue: 3
Page: 1036-1044
Publish at: 2018-06-01

A Compact Bandpass Filter Using A T-Shaped Loaded Open-ended Stub Resonator

10.11591/ijeecs.v10.i3.pp867-874
Ali Nyangwarimam Obadiah , Mohamad Rijal Hamid , Mohamad Kamal Abd Rahim , Noor Asniza Murad
This paper proposes a compact bandpass filter using a loaded open-ended T-shaped stub. The open-ended T-shaped stub is loaded with vertical resonators placed across. The key advantage of using vertical resonators in the design is the simplicity and low insertion loss it provides. The structure used is an open-ended stub attached on one end to the transmission line (λ/2) to form a T-shaped resonator (λ/4) having vertical resonators placed across. The vertical resonator position alters the position at which the transmission zero occurs. A pair of the T-shaped resonator is placed on parallel sides of the feed line. The proposed filter is designed with the aid of Computer Simulation Technology Microwave Studio Software. The proposed concept is verified by designing filters with four different vertical resonator positions. The filter possesses a good rejection and low insertion loss of < 2dB with Chebyshev response. This filter is suited for modern-day communication applications since it shows good rejection of out of band signals.
Volume: 10
Issue: 3
Page: 867-874
Publish at: 2018-06-01

Soil-transmitted Helminths Infection among Primary School Students: which Policy bhould be Emphasized?

10.11591/ijphs.v7i2.12940
Bumi Zulheri Herman , Ranisa Handayani Ramlan , Ferawati Rahmat Wahab
Soil Transmitted Helminths is a neglected disease and remain untouched in Balikpapan despite of its deteriorating effects on child health. A cross-sectional study to reveal the actual infection among school-age children in Balikpapan was conducted from January-March 2016 involved 101 students from 10 schools. All subjects and parents were interviewed using validated questionnaire followed by stool examination. All data underwent univariate and bivariate test using fisher exact’s test, ANOVA and logistic regression test (95% CI).  Rate of positive infection was 62.4%. Associated risk factors were, routine hand wash (p=0.004 OR=0.050), taking oral prophylaxis (p=0.001 OR=0.182), use of footwear (p=0.009 OR=2.529), involved in “Young Doctor Program” or other health promotion program (p=0.014 OR 0.324) and the type of toilet at home (p=0.048). Knowledge about worm infection (p=0.659), history of previous worm infection (p=0.768) and access to clean water at home (p=0.361) were insignificantly associated with infection rate. Community service (such as “The Clean, Green And Healthy” program) (p=0.037 OR 0.395) and Community Health Care (p=0.000 OR 0.155) were associated with lower risk of infection. Regression test shows that community health care and oral prophylaxis were the most influencing factor and these factors should be considered as the main focus of intervention.
Volume: 7
Issue: 2
Page: 130-136
Publish at: 2018-06-01
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