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23,675 Article Results

Cloud Computing Application of Personal Information's Security in Network Sales-channels

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2911
Sun Qiong , Min Liu , Shiming Pang
With the promotion of Internet sales, the security of personal information to network users have become increasingly demanding. The existing network of sales channels has personal information security risks, vulnerable to hacker attacking. Taking full advantage of cloud security management strategy, cloud computing security management model is introduced to the network sale of personal information security applications, which is to solve the problem of information leakage. Then we proposed membership-based cloud service provided selection policy. By exploring the prospects of cloud computing in Internet sales, we try to solve the problem of the security of personal information in this channel. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3619
Volume: 11
Issue: 12
Page: 7331-7338
Publish at: 2013-12-01

Knowledge, Attitude and Perception (KAP) Regarding Halal Pharmaceuticals among General Public in Penang State of Malaysia

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4664
Saleha Sadeeqa , Azmi Sarrif , Imran Masood , Fahad Saleem , Muhammad Atif
This study was designed as questionnaire based a cross-sectional analysis and aimed to assess knowledge, attitude & perception regarding Halal pharmaceuticals, among general public of Penang, Malaysia. A total of 458 Muslims, having age 18 years or above and able to read and understand Malay language was included. Study settings included different shopping malls, bus stations, food courts and markets of Penang state. Data was collected through trained data collectors. Results revealed that public has a good and positive towards Halal pharmaceuticals. Mean knowledge score was 6.41 ± 1.35 (out of 9), while mean attitude and perception score out of maximum possible score of 35 each were 25.86±4.03 and 30.71±4.47 respectively. Mean overall knowledge, attitude and perception (KAP) score out of maximum possible score of 79 was found to be 62.74±7.65. Positive yet weak significant correlation was reported between knowledge and attitude (r=0.099, p=0.035) and attitude and perception (r=0.156, p=0.001). However, the significance between knowledge and perception was positive and moderate in relationship (r=.440, p=.036). The study concluded that better knowledge of Halal pharmaceuticals is associated positive perceptions and behaviours.DOI: http://dx.doi.org/10.11591/ijphs.v2i4.4226
Volume: 2
Issue: 4
Page: 143-150
Publish at: 2013-12-01

Dynamic Response of Flexible Wind Turbine Blade

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2873
Yu-qiao Zheng , Rong-zhen ZHAO , Hong liu
Aiming at the non-stationary and stall flutter problems of wind turbine blade caused by transient load fluctuations, the dynamic properties of wind turbine were studied, the blade was simplify to a cantilever beam in case of the action of shear deformation and cross section rotating effect were considered in this analysis, equations of the blade were established based on D'Alemberts' principle and the principle of virtual displacement. The dynamic response of the wind turbine was solved by using the finite element method under the transient load environment. A 29.2 m rotor blade, previously reported in specialized literature, was chosen as a case study to validate dynamic behaviour predicted by a Timoshenko beam model. It is concluded that despite its simplicity, The cross-sectional shear-deformation  has great influence on  dynamic response of the blade.Dynamic model is sufficiently accurate to serve as a design tool for the recursive analyses required during design and optimization stages of wind turbines using only readily available computational tools. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3329
Volume: 11
Issue: 12
Page: 7052-7057
Publish at: 2013-12-01

Sliding Mode Control of the Battery Bank for the Fuel Cell-based Distributed Generation System

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2875
Junsheng Jiao
The dynamic models for the fuel cell power and the configuration of the fuel cell distributed generation system are shown in this paper. Due to nonlinear characteristics of fuel cell model, the output voltage of fuel cell varies greatly when the load changes. A novel interface is designed to provide a constant output voltage for charging of the battery bank of the fuel cell distributed generation. The thesis presents a sliding mode control design of PEMFC distributed generation system. A cascaded control structure is chosen for ease of control realization and to exploit the motion separation property of power converters. The simulation results confirm the output current and voltage of the PEM fuel cell array converge rapidly to their reference values. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3594
Volume: 11
Issue: 12
Page: 7065-7071
Publish at: 2013-12-01

A Novel Strategy for Wind Speed Prediction in Wind Farm

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2866
Yang Guang , Ziqiang Hu , Xinrong Liu
The empirical mode decomposition (EMD) is well known for predicting wind speed.However, but the joint application of relevance vector machine (RVM) and empirical mode decomposition in wind speed forecasting is seldom found in the field. This paper proposes a relevance vector machine model based on empirical mode decomposition to predict the wind speed.Before the wind speed forecasting with RVM，EMD algorithm is used to decompose wind speed signal in order to weaken the disadvantageous influences of nonlinearity and uncertainty in wind spped. By the decomposition process, a series of intrinsic mode functions (IMFs) are generated. To each IMF, RVM algorithm is used to construct the model and carry on the forecast espectively. The final predicted result is obtained by the superposition of all prediction results. By the simulation experiment, the comparison of several algorithms is shown. The results showed that EMD-RVM model is effective, and has better forecasting precision. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.2770
Volume: 11
Issue: 12
Page: 7007-7013
Publish at: 2013-12-01

Analysis on Supporting Stability for Track Subgrade Dynamic Response In-situ Test Device Based on NSGA-II

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2898
Feilong Zheng , Liangcai Zeng , Gangsheng Kai
The dynamic response test to the subgrade plays a very important role in railway construction and a new in-situ test system is proposed. This paper presents the application of non-dominated sorting genetic algorithm-II (NSGA-II) to analyze the stability of the supporting equipment for track subgrade dynamic response in-situ test device. Its stability is related with the extension length of the hydraulic cylinders and the backward condition of the supporting equipment - the hydraulic excavator. The problem is formulated as a multi-objective optimization problem with the objective of maximizing  the supporting force for the test device. An 85 tons excavator is picked as the case to study. The first optimal results show the excavator may not support the test system successfully. After redesigning the boom and adding its weight and length as new parameters, the second optimize results indicate the test device can work normally. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3986
Volume: 11
Issue: 12
Page: 7235-7242
Publish at: 2013-12-01

Multidimensional data mining using a K-mean algorithm based on the forest management inventory of Fujian Province, China

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2905
Yanrong Guo , Baoguo Wu , Yang Liu
To determine relationships between stand volume and site factors in the absence of information about stand age and density, a classification pattern was established using a clustering analysis algorithm and applied to China fir in Fujian Province. The results showed that slope position, elevation, elevation and humus depth were important factors affecting the stand volumes of young/immature forests, near-mature forests, and mature/overmature forests, respectively. The K-mean algorithm could be used to evaluate the influences of site factors on stand volume under different stand age groups and density conditions. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3570
Volume: 11
Issue: 12
Page: 7290-7294
Publish at: 2013-12-01

Anti-collision Algorithm for RFID Based on Continuous Collision Detection

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2930
Liu Zhen-peng , Guan Zhenyang , Shang Kai-yu , Cai Wen-lei
Tag estimation can improve the throughput of the UHF passive RFID systems. It plays an important role in anti-collision algorithm. In order to reduce the complexity of the estimation algorithm and the hardware support, a new algorithm based on the continuous detection mechanism has been proposed. According to the different probability of the collision and idle, the number of the continuous detected slots must be set independently. This scheme can simplify the system and reduce the extra consumption by less detecting timeslot. Simulation results indicate the proposed scheme can improve the efficiency without complicate system. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3661
Volume: 11
Issue: 12
Page: 7476-7483
Publish at: 2013-12-01

Median Lethal Concentrations (LC50) of Chlorantraniliprole and Its Effects on Behavioral Changes

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4663
Naga Raju
The aim of the present study was to determine the acute toxicity of chlorantraniliprole insecticide to the fresh water fish Labeo rohita. Environmental protection has attracted the attention of the wide cross-section of people all over the world which has now become a global issue amongst scientists and researchers working in this area. Experimental fish were exposed to different concentrations of chlorantraniliprole between range 0, 1, 2,34,5,6,8,10,12 and 13mg/L-1) for 96 hrs in test container. The 96hrs LC50 value of chlorantraniliprole (Coragen) on the fish was found to be 12.7mg/L-1. The variation in the LC values is due to its dependence upon various factors viz., sensitivity to the toxicant, its concentration and duration of exposure. Further study needs the processes by which these chemicals affect physiology and pathological changes and of fish and their bio-concentration and bio- accumulation in fish tissues.DOI: http://dx.doi.org/10.11591/ijphs.v2i4.4208
Volume: 2
Issue: 4
Page: 137-142
Publish at: 2013-12-01

Improved Distributed Particle Filter for Simultaneous Localization and Mapping

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2948
Mei Wu , Fujun Pei
The Simultaneous localization and mapping (SLAM) problem have become a focus of many researches on robot navigation. Generally the most widely used filter in SLAM problems are centralized filter. It is well known that SLAM based on conventional centralized filter must reconfigure the entire state vectors when the observation dimension changes, which cause an exponential growth in computation quantities and difficulties in isolate potential faults. In this paper, we proposed improved DPF distributed particle filter-SLAM in two aspects, in DPF-SLAM one centralized filter is divided into several distributed filters which reduce the computation quantities efficiently and avoid the necessary to reconfigure the entire state vectors in every step. First, we improved the important function of the local filters in distributed particle filter. By changed a set constant in the important function to an adaptive value, we improved the robustness of the system. Second, we propose an information fusion method that mixed the innovation method and the number of effective particles method, which combined the advantages of these two methods. The result of simulations shows that the algorithms we proposed improved the virtue of the DPF-SLAM system in isolate faults and enabled the system has a better tolerance and robustness.  DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3683
Volume: 11
Issue: 12
Page: 7617-7626
Publish at: 2013-12-01

Effective Factor on Delivery and on Choosing its Type in IRAN: A Phenomenological Study

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4667
Leili Mosalanejad
Different factors such as economical, social, and cultural may have a considerable role in choosing the type of delivery. Considering the importance of women’s idea and decision in choosing the type of delivery, this study was done by purposing on explaining women’s experiences in delivery and choosing its type in a qualitative study.This was a descriptive qualitative study (phenomenology approach)  that was done by purposeful sampling on non-nulliparous pregnant women who were in the third trimester of pregnancy referred to Jahrom maternity clinics . The purposeful sampling was used for studying urban and rural pregnant women in six focus groupsincluding seven pregnant women in each   that data gathering continued to the point of data saturation and data were analyzed using content analysis. From 98 dismissed codes, two main teams and nine sub teams emerged that included their perception delivery and their cultural socioeconomic level. There were many factors affecting the selection of the type of delivery that some of them are the result of the lack of accurate information, poor education and lack of comprehensive rational and decisions regarding women’s healthcare. Therefore it is necessary to adapt appropriate strategies to improve children and mother’s health. DOI: http://dx.doi.org/10.11591/ijphs.v2i4.3882
Volume: 2
Issue: 4
Page: 165-170
Publish at: 2013-12-01

Assessment of the Attitude of Health Care Professionals towards Diabetes Care in Mukalla, Yemen

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4666
Salmeen Doagel Babelgaith , Saeed Alfadly , Mohd Baidi Bahari
Diabetes mellitus is a major public health concern and considered as a condition that leads to increased morbidity and mortality worldwide. The prevalence of diabetes in Yemen has been recently increased. The aim of this study was to evaluate the attitudes of health care professionals towards diabetes (HCPs) care in Mukalla , Yemen . The cross sectional study was conducted among health care professionals in Mukalla city, Yemen. The diabetes attitudes questionnaire was administered to 73 health care professionals (Doctors , pharmacists and nurses ) in Mukalla , Yemen in  2009. The data were analyzed descriptively and the inferential Kruskal -Wallis test was also used.  This study found that healthcare professionals have relatively adequate attitudes toward diabetes. Doctors have higher attitudes score toward the seriousness of diabetes than other healthcare professional groups (pharmacists and nurses), and nurses showed the lowest attitude score among healthcare professional groups. Therefore, nurses and pharmacists should receive more education programmes regarding diabetes care. DOI: http://dx.doi.org/10.11591/ijphs.v2i4.3842
Volume: 2
Issue: 4
Page: 159-164
Publish at: 2013-12-01

Clustering-boundary-detection algorithm based on center-of-gravity of neighborhood

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2907
Wang Gui Zhi
The cluster boundary is a useful model, in order to identify the boundary effectively, according to the uneven distribution of data points int the epsilon neighborhood of boundary objects, this paper proposes a boundary detection algorithm S-BOUND. Firstly, all the points in the epsilon neighborhood of the data objects are projected onto the boundary of the convex hull of the neighborhood, and then calculate the center of gravity of the neighborhood. Finally, detect the boundary object according to the degree of deviation of the center of gravity of the neighborhood with the object. The experimental results show that the S-BOUND algorithm can accurately detect a variety of clustering boundary and remove the noises, the time of performance is also better. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3620
Volume: 11
Issue: 12
Page: 7302-7308
Publish at: 2013-12-01

Simulate Study of Automatic Parking System

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2910
Tie Wang
The vehicle's kinematic model is established at the condition that the vehicle is in a low speed reversing movement. The particle swarm optimization algorithm is used to the path planning. Through analysing fuzzy control knowledge, use a fuzzy method to control the process of the parking. The simulate results of parking process was gotten in the environment of MATLAB7.0 software. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.2631 
Volume: 11
Issue: 12
Page: 7324-7330
Publish at: 2013-12-01

An Improved Moving Multi-Human Target Detection Algorithm

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2889
Liang Feng-Mei , Tong Lin-Lin
In the detection of moving multi-human targets, the major problems existing lie in the detection speed and precision. Fortunately, the HOG feature presents a very considerable effect on the detection accuracy. However, the problem of low detecting speed caused by its large amount of calculation prevents the HOG feature from being well applied in scenes where the real-time requirements are needed. Given this problem, this paper presents a method which combines the Gaussian mixture background model and HOG feature. This method solved firstly by the Gaussian mixture background model to detect the moving foreground in the video. And then use HOG+SVM to handle the moving foreground that has been detected. As a result, the amount of computation is reduced considerably and the real-time performance of the HOG algorithm is improved greatly. Verified by the experiment, the detection accuracy of this algorithm can reach 94%. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3747
Volume: 11
Issue: 12
Page: 7166-7173
Publish at: 2013-12-01
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