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30,033 Article Results

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

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

Correlation between Reflection Coefficient, Dielectric Properties and Brix Level of Malaysian Oranges at Microwave Frequencies

10.11591/ijeecs.v10.i3.pp853-858
Rafidah Rosman , Mohamad Ngasri Dimon , You Kok Yeow
This paper presents sweetness degree (°Brix) prediction of the Malaysian oranges using microwave technique. Experimental measurement using monopole sensor and reflectometer was done in order to correlate the relationship between measured reflection coefficient, S11  of the orange and its sweetness level. Up to fifty orange samples were freshly plucked from local grower’s farm and tested. The unique design of the monopole sensor’s holder is made of nylon. The experiment test bed was set up based on the standard dimension of monopole sensor available in the market. The operating frequency is focusing on 2.2 GHz as it shows significant sensitivity for determining Malaysian local oranges sweetness level.
Volume: 10
Issue: 3
Page: 853-858
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

Internet of Things based Smart Environmental Monitoring for Mushroom Cultivation

10.11591/ijeecs.v10.i3.pp847-852
Mohd Saiful Azimi Mahmud , Salinda Buyamin , Musa Mohd Mokji , M.S. Zainal Abidin
Environmental condition is a significant factor that needs to be controlled in mushroom production. Mushrooms are unable to grow if the temperature is higher than 33°C or lower than 25°C. Thus, this work focuses on developing an automatic environmental control system to provide optimum condition to mushroom production house. Environmental factors considered in the system are temperature, humidity and carbon dioxide. For this, DHT11 temperature humidity sensor and MQ135 CO2 sensor are connected to the ESP8266 Wi-Fi module to become IoT (Internet of Things) sensors that send big amount of data to the internet for monitoring and assessment. This enable users to monitor the environmental condition anywhere whenever accessing the internet. Based on the analysis of the data, the system will automatically on and off the irrigation system to put the temperature at an optimum level.
Volume: 10
Issue: 3
Page: 847-852
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

Random, PSO and MDBPSO based Sensor Deployment in Wireless Sensor Network

10.11591/ijeecs.v10.i3.pp1278-1286
Aparna Pradeep Laturkar , Sridharan Bhavani , DeepaliParag Adhyapak
Wireless Sensor Network (WSN) is emergingtechnology and has wide range of applications, such as environment monitoring, industrial automation and numerous military applications. Hence, WSN is popular among researchers. WSN has several constraints such as restricted sensing range, communication range and limited battery capacity. These limitations bring issues such as coverage, connectivity, network lifetime and scheduling and data aggregation. There are mainly three strategies for solving coverage problems namely; force, grid and computational geometry based. This paper discusses sensor deployment using Random; Particle Swarm Optimization (PSO) and grid based MDBPSO (Modified Discrete Binary Particle Swarm Optimization) methods. This paper analyzes the performance of Random, PSO based and MDBPSO based sensor deployment methods by varying different grid sizes and the region of interest (ROI). PSO and MDBPSO based sensor deployment methods are analyzed based on number of iterations. From the simulation results; it can be concluded that MDBPSO performs better than other two methods.
Volume: 10
Issue: 3
Page: 1278-1286
Publish at: 2018-06-01

A Low Quiescent Current Fast Settling Capacitor-less Low Drop Out Regulator Employing Multiple Loops

10.11591/ijeecs.v10.i3.pp1070-1079
Suresh Alapati , Patri Sreehari Rao
This paper presents a fast transient and low noise capacitor-less LDO using multiple loops. The proposed LDO exploits adaptive biasing, bulk modulation and a fast reacting control loop for achieving high performance striking reasonable tradeoffs among quiescent current, transient response and stability. The proposed LDO offers a load regulation of 0.095µV/mA while consuming quiescent current of 16 µA. It exhibits a load transient of 134.23mV with a settling time of 240.8ns against 0 to 100mA load variation with 40pF output capacitor. It exhibits an integrated noise of 31.027 pV2 /Hz at 10 Hz for a maximum load current of 100mA. The proposed LDO is designed using 0.18-µm 1P6 CMOS process.
Volume: 10
Issue: 3
Page: 1070-1079
Publish at: 2018-06-01

Evaluation of MAC’s Distributed Queuing Algorithm for Internet of Things Applications

10.11591/ijeecs.v10.i3.pp966-973
Mabruka Mohamed Agel , Mohamed Hadi Habaebi , Sameha Alnahdi , Md Rafiqul Islam
Internet of Things and Machine-to-Machine communications have contributed significantly on our daily life. Nevertheless, from the networking aspect they introduced a huge challenge for the performance and quality of services of networks. In this paper, a Distributed Queuing Access for LTE protocol was analyzed to enhance the random access performance for Machine to machine (M2M) applications. The M2M communications presented countless solicitations that can over-burden the access channel of the present LTE network. This prompts to an expansion in the collision probability and results in a noteworthy access delay. The introduced protocol does improve the performance of Medium access layer in terms of blocking probability, access delay, energy utilization and number of re-transmissions attempts in comparison with the standard LTE protocol without altering the existing LTE outline structure. The new protocol is intended to ensure that the random access procedure of the ordinary UE gadget will not be affected bringing about consistent implementation for the proposed convention.
Volume: 10
Issue: 3
Page: 966-973
Publish at: 2018-06-01

Economic and Emission Dispatch using Whale Optimization Algorithm (WOA)

10.11591/ijece.v8i3.pp1297-1304
Faseela C. K. , H. Vennila
This paper work present one of the latest meta heuristic optimization approaches named whale optimization algorithm as a new algorithm developed to solve the economic dispatch problem. The execution of the utilized algorithm is analyzed using standard test system of IEEE 30 bus system. The proposed algorithm delivered optimum or near optimum solutions. Fuel cost and emission costs are considered together to get better result for economic dispatch. The analysis shows good convergence property for WOA and provides better results in comparison with PSO. The achieved results in this study using the above-mentioned algorithm have been compared with obtained results using other intelligent methods such as particle swarm Optimization. The overall performance of this algorithm collates with early proven optimization methodology, Particle Swarm Optimization (PSO). The minimum cost for the generation of units is obtained for the standard bus system.
Volume: 8
Issue: 3
Page: 1297-1304
Publish at: 2018-06-01
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