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23,675 Article Results

Study on Control Strategy of Electro-Hydraulic Servo Loading System

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2608
Ju Tian
Since extraneous torque is the key factor to affect the accuracy of electro-hydraulic servo loading system, the forming mechanism of extraneous torque was discussed in this work. And then several design methods of loading system controller based on modern control theory were introduced, such as internal model control, Cerebella model articulation control and adaptive backstepping control. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3246
Volume: 11
Issue: 9
Page: 5044-5047
Publish at: 2013-09-01

Computer Network Reliability Optimization Calculation Based on Genetic Algorithm

10.12928/telkomnika.v11i3.1145
Jiangtao Yu; Tonghua Normal University Jiangtao Yu
How to effectively reduce the network node link cost by improving the reliability of computer network transmission system is one of the important targets of computer network reliability optimization calculation. Therefore, in the computer network reliability optimization calculation, it is necessary to integrate the computer network link medium cost, network reliability optimization mathematical model and other factors. This paper describes genetic algorithm and its implementation process, as well as the application of genetic algorithm to the network link cost and network reliability optimization calculation. In addition, it is indicated from the simulation results that genetic algorithm can effectively solve the reliability optimization calculation problem which is difficult to solve by the traditional algorithm of network, so as to speed up the calculation speed of computer network and optimize the network calculation result.
Volume: 11
Issue: 3
Page: 603-610
Publish at: 2013-09-01

Product Spatial Sequence Modeling based on Spatial State Transition Petri net of Behavior Flow

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2669
Hao Yongtao , Zou Zhaoguo , Lou Diming
FBS model proposed three levels of abstraction (function, behavior, structure) and eight design stages used to describe the design. The model becomes the basis of many computer-aided design practices. In this paper, based on FBS model, behavior flow ontology conception is proposed, and the conception can describe the dynamic and continuous of behavior of products more accurately .The behavior flow mechanism extends to structure layer too. Spatial sequence is the exhibition of behavior flow in the structure layer. This paper analyzes the relationship between behavior flow and spatial sequence, and the relationship between spatial sequence and function. A model to express the spatial sequence of behavior flow is proposed, by dividing spatial sequence into two parts, spatial connection relation of product and spatial state transition process. Spatial connection relation is the description of the product composition, expressed by spatial semantic network; the spatial state transition process of behavior flow is the process to realize the function, expressed by spatial state transition Petri net of behavior flow. Spatial sequence of behavior flow of engine is represented by this model as an example. Finally, a conceptual design framework based on behavior flow is proposed as the further research direction. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3310 
Volume: 11
Issue: 9
Page: 5490-5501
Publish at: 2013-09-01

Applications of Chaos Sequence in Intelligent Transportation System

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2631
Yao Zhang , Licai Yang , Haiqing Liu , Lei Wu
Vehicular Ad-Hoc Network (VANET) is an essential technology to improve safety and efficiency of Intelligent Transportation System (ITS), it provides vehicle to vehicle as well as vehicle to roadside unit (RSU) wireless communications, so that on board unit (OBU) located in vehicles can share messages related to road traffic with not only other OBU in the same VANET but also transportation management centre depending on retransmission of RSU. It is very important to detect and transmit real time messages of road traffic condition in VANET. This paper presents two application schemes for VANET based on chaos sequence: traffic flow forecast and vehicle secret communications. The principles of these schemes are introduced separately, and performances are verified by theoretical analysis and simulation. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3270  
Volume: 11
Issue: 9
Page: 5210-5217
Publish at: 2013-09-01

Multi-source Image Fusion Technology in Different Fields of View

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2597
Si Tian , Junju Zhang , Yihui Yuan , Benkang Chang
There exist a lot of image systems of different features in different field of view (FOV) in our real life. Multi-source fusion technology in different FOV is able to promote the performance of image acquisition system without additional investment in hardware equipment. With regards to multi-image fusion technology in different FOV, in this research a registration method combined with affine transformation and linear interpolation is proposed, which analyzes pre- and post- fused images from the temporal and spatial perspective for comparison, evaluates and compares the fusion result so as to testify the applicable feasibility of the technology. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3229
Volume: 11
Issue: 9
Page: 4956-4962
Publish at: 2013-09-01

Robustness of Improving Active Maglev Motorized Spindle Equilibrium Position

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2624
Zhang Yanhong , Zhao Dean , Zhang Jiansheng , Zheng Zhongqiao , Zou Yiqin , Zhang Yongchun
The equilibrium position of active maglev motorized spindle had great influence on the industrial processing accuracy, in order to improve the performance of active maglev motorized spindle and processing accuracy, a new control method and control device of active maglev was put forward based on H∞ mixed sensitivity. Firstly, a mathematical model was established among the electromagnetic force on the rotor, control current and position displacement of the rotor center. Secondly, the H∞ mixed sensitivity control method was used, the selection method of weighting function was discussed and H∞robust controller was designed, the experimental results showed that for active maglev motorized spindle, the designed controller had better static and dynamic performance, position precision, so that the robustness of the motorized spindle equilibrium position was further improved, which met the requirement of high precision industrial process. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3263
Volume: 11
Issue: 9
Page: 5161-5168
Publish at: 2013-09-01

Application of Virtual Instrument in Electronic Education

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2665
Zhongbao Ji
Virtual instrumentation is defined as the combination of measurement and control hardware and application software with industry-standard computer technology to create user-defined instrumentation systems. Since the birth of virtual instrument (VI), it enters rapidly into the industrial production field, and Research and Development (RD) field. It can improve production quality, shorten development time, and increase production efficiency. So it is wildly used in companies. In order to improve the ability of students’ using new technology and equipment, and save daily funds, we try to use virtual instrument instead of traditional instruments for analysis and design circuits. The paper adopts the software-LabVIEW and many hardware modules of NI (National Instrument) to study of virtual instrument applied in electronic education of vocational college. The research result of this work can provide a theoretical and practical foundation for vocational education of virtual instrument in the future. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3306 
Volume: 11
Issue: 9
Page: 5455-5460
Publish at: 2013-09-01

A Framework of Concurrent Mechanism Based on Java Multithread

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2656
Wuxue Jiang , Qi Li , Zhiming Wang , Jianfeng Luo
The continuously increased demand for paralleling multitask in domains such as grid computing and cloud computing has significantly promoted research on concurrent mechanism and concurrent programming. The Java programming language supports multithread mechanism for developing paralleling programs, however, it is difficult to apply Java concurrent primitives to specific problems. Thus, for the development of high reliable and qualitative Java concurrent programs, this paper analyses Java multithread mechanism and it’s realization, studies the concurrent mechanism based on Java synchronization and interactive communication mechanism , compares the concurrent structure based on operating system and based on Java multithread, sums up some concurrent programming rules and strategies to prevent deadlock. A frame instance based on entire synchronization is presented, which can help to develop concurrent programs quickly. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3296
Volume: 11
Issue: 9
Page: 5395-5401
Publish at: 2013-09-01

The Cultur of School Environment Associated with Overweight in Urban Adolescent

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4659
Oktia Woro Kasmini Handayani
The number of cases in overweight adolescents tend to increase will have an impact on the quality of Human Resources (HR) in the present and future. For that, the problem in this research is what the cultural of school environment factors related to the overwight in urban adolescent.This study was a cross sectional survey. The population in this study is all high school students Kesatrian 2 Semarang in 2012, amounting to 918 people. Samples were 30 students selected by purposive sampling. The independent variable was the frequency of street food consumption, physical activity and the amount of pocket money. Dependent variable is overweight events. The data analysis is using chi square test.There is a relationship between the frequency of street food consumption (p= 0.020), physical activity (p= 0.030) with the risk of incidence of overweight in urban adolescents. There is no relationship between the amount of pocket money (p= 0.225) and the incidence of overweight in urban adolescent. Suggestion: 1) Urban adolescent need to understand the incidence of overweight and the factors that influence it in order to take steps to prevent overweight independently 2) For the department of health, public health center and the school need to promote prevention programs in adolescent nutrition for adolescent to have normal nutritional status.DOI: http://dx.doi.org/10.11591/ijphs.v2i3.2893
Volume: 2
Issue: 3
Page: 101-108
Publish at: 2013-09-01

Overlapping Communities Detection Based on Link Partition in Directed Networks

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2663
Qingyu Zou , Fu Liu , Tao Hou , Yihan Jiang
Many complex systems can be described as networks to comprehend both the structure and the function. Community structure is one of the most important properties of complex networks. Detecting overlapping communities in networks have been more attention in recent years, but the most of approaches to this problem have been applied to the undirected networks. This paper presents a novel approach based on link partition to detect overlapping communities structure in directed networks. In contrast to previous researches focused on grouping nodes, our algorithm defines communities as groups of directed links rather than nodes with the purpose of nodes naturally belong to more than one community. This approach can identify a suitable number of overlapping communities without any prior knowledge about the community in directed networks. We evaluate our algorithm on a simple artificial network and several real-networks. Experimental results demonstrate that the algorithm proposed is efficient for detecting overlapping communities in directed networks. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3304
Volume: 11
Issue: 9
Page: 5441-5447
Publish at: 2013-09-01

The monochrome LCD Driver Design and Implementation Based on Framebuffer

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2592
Li Zhi-hui , Xian Jinlong
Recently, the LCD applications have developed very rapidly, especially the application of the monochrome LCD in certain areas. This paper, on hardware, introduced the connection between monochrome LCD HEM160160-07C2 and ARM9-based AT91SAM9261; on software, respectively introduced monochrome LCD driver implementation based on GPIO and based on Framebuffer. By the two mode analysis, the mode based on Framebuffer is better, ultimately has been validated in the project experiment. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.2868 
Volume: 11
Issue: 9
Page: 4918-4924
Publish at: 2013-09-01

Application of Wireless Sensor Network in Target Detection and Localization

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2699
Hui Ding
Wireless sensor network is a novel network with embedded system technology, communication technology and sensor technology as a whole, it is one of the wireless network form that is very rapid development at present, wireless sensor network has the characteristics of flexibility, adaptability, stable performance, wide coverage etc, so it is widely used in environmental monitoring, community security, military reconnaissance and other fields, the construction of target detection and location system in this paper are built by the application of wireless sensor network system platform, to realize the level of detection and localization of multiple targets. In this paper, wireless sensor network is first given a brief overview. On this basis, this paper also designs the target detection and location system, to presents a multi-objective hybrid location algorithm. Finally, the experiments verify that  DOI: http://dx.doi.org/10.11591/telkomnika.v11i10.3400
Volume: 11
Issue: 10
Page: 5734-5740
Publish at: 2013-09-01

Self-esteem, Gender, Family-communication-style and Parental Neglect as Predictors of Aggresive Tendencies among Secondary School Adolescents

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4658
Henry Odhianosen Imhonde
ABSTRACTThis study examined the role of Self-esteem, Gender, family communication style, and Parental neglect on aggressive tendencies among secondary school adolescents’ in Esan West Local Government Area of Edo State. A total of two hundred and forty (240) secondary school adolescents drawn from 9 private and 3 public schools in Esan West Local government Area of Edo state participated in the study.  One hundred and forty of the participants were males, while one hundred were females. A questionnaire was used in collecting data. The questionnaire consisted of five sections; the demographic variables, Family communication style, Parental neglect, Self-esteem, and Aggressive tendencies. Results of the multiple regression analysis revealed that only self-esteem, independently predict aggressive tendencies. Family communication style, gender and parental neglect were not found to independently predict aggressive tendencies. However, self-esteem, gender, family communication, parental neglect jointly predict aggressive tendencies among secondary school adolescents. Based on the findings of this study, it is recommended that the future of a successful intervention by therapist/service providers for students with aggressive behaviour in Nigeria lies heavily on knowing and identifying the personal and family characteristics of the individual. This no doubt would help the therapists in managing individuals with specific treatment.DOI: http://dx.doi.org/10.11591/ijphs.v2i3.2873
Volume: 2
Issue: 3
Page: 93-100
Publish at: 2013-09-01

Contribution of Knowledge on Breastfeeding among Mothers who Joined Mother Support Group Program

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4657
Lina Handayani , Azlina Md Kosnin , Yeo Kee Jiar , Solikhah Solikhah
The infant feeding decision is complex and involves the influence of psychological, social, and economic factors, and health care system. This study aimed to determine the contribution of knowledge on breastfeeding among nonworking mothers. This was a cross-sectional study conducted in Yogyakarta, Indonesia. A total of 173 nonworking mothers with babies between 0-6 months who joined the mother support group (MSG) program participated in this study. The results showed that knowledge has significant influence on breastfeeding practice among the non working mothers (beta= .21, p= .01). MSG may be a suitable method to promote breastfeeding among Indonesian mothers.DOI: http://dx.doi.org/10.11591/ijphs.v2i3.3051
Volume: 2
Issue: 3
Page: 89-92
Publish at: 2013-09-01

LEACH Algorithm Based on Load Balancing

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2647
Wangang Wang , Yong Peng
This paper discusses advantages of LEACH Algorithm and the existing improved model which takes the famous hierarchy clustering routing protocol LEACH Algorithm as researching object. Then the paper indicates the problem that in the algorithm capacity factor of cluster head node is not taken into account leading the structure of clusters to be not so reasonable. This research discusses an energy-uniform cluster and cluster head selecting mechanism in which “Pseudo cluster head” concept is introduced in order to coordinate with “Load Monitor” Mechanism and “Load Leisure” Mechanism to maintain load balancing of cluster head character and stability of network topology. On the basis of LEACH Protocol improving algorithm of LEACH-C, CEFL and DCHS. NS2 simulation instrument is applied to do simulation analysis on the improved algorithm. Simulation result shows that LEACH-P Protocol effectively increase energy utilization efficiency, lengthens network lifetime and balances network load. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3287   
Volume: 11
Issue: 9
Page: 5329-5335
Publish at: 2013-09-01
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