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25,002 Article Results

Fundamental Metrics for Wireless Sensor Networks localization

https://ijece.iaescore.com/index.php/IJECE/article/view/5350
Javad Rezazadeh , Marjan Moradi , Abdul Samad Ismail
During the last decade, Localization in wireless sensor networks (WSNs) is a broad topic that has received considerable attention from the research community. The approaches suggested to estimate location are implemented with different concepts, functionalities, scopes and technologies. This paper introduces a methodological approach to the evaluation of localization algorithms and contains a discussion of evaluation criteria and performance metrics followed by statistical/ empirical simulation models and metrics that affect the performance of the algorithms and hence their assessment. The major contribution of this paper is to analyze and identify relevant metrics to compare different approaches on the evaluation of localization schemes.DOI:http://dx.doi.org/10.11591/ijece.v2i4.247
Volume: 2
Issue: 4
Page: 452-455
Publish at: 2012-08-01

Learner-Friendly Kanji Learning System with Radical Analysis

https://ijere.iaescore.com/index.php/IJERE/article/view/4423
Jungpil SHIN , Yusuke Shimizu
This paper presents a novel friendly Kanji learning system using Radical Analysis to enable foreign people and elementary school students to learn Kanji by an interesting and efficient way. This way is for characters to analyze for each radical, to divide into some parts, and to correct strokes for each divided part. Here, the Radical Analysis Database (RAD) is used for dividing characters. RAD is a database to analyze characters for each radical and divide into some parts. On the other hand, characters are corrected by using a threshold. The threshold is a judgment value in the correction and learners can set it freely by handling threshold bars put on the interface. Then, the novel system is improved so that learners can set thresholds for each divided part. Since each bar corresponds to each part, the system judges whether each part is corrected or not according to set thresholds. Hence, since learners can freely determine radicals or parts in which they want to be instructed intensively, they can practice only their radicals not good or part of the character and easily master difficult characters, too. In addition, an animation helps learners understand the order of strokes virtually. Since each stroke used in this animation is displayed with different colors, learners can also understand virtually where the same strokes are from and to at once.DOI: http://dx.doi.org/10.11591/ijere.v1i1.479
Volume: 1
Issue: 1
Page: 17-24
Publish at: 2012-07-01

A Study of Job Satisfaction among Teachers, Higher Secondary School of Nepal

https://ijere.iaescore.com/index.php/IJERE/article/view/4426
Deepak P. Kayastha , Rabindra Kayastha
This article investigates the job satisfaction among teachers with particular reference to corporate, Higher Secondary level School in Nepal. The job satisfactions that have been examined under this study include, work, pay, co-workers, supervision, promotion, job in general. The sample consists of a Government, Private and Public Higher Secondary level School teacher from Kathmandu and Latitpur District of Nepal. Data were collected using a questionnaire survey. The results show there is a significant relationship between job satisfaction facets.DOI: http://dx.doi.org/10.11591/ijere.v1i1.752
Volume: 1
Issue: 1
Page: 41-44
Publish at: 2012-07-01

The Impact of ICT on Career Counseling Services: A case Study of Nigerian Secondary Schools

https://ijere.iaescore.com/index.php/IJERE/article/view/4422
Obi M. C. , Oye N. D. , Mohd T. N. , Bernice A.
Information and communication technologies (ICT) will need to be fully integrated into the delivery of careers services as the world is now in the global era. Such integration would not only have the potential to achieve more but would also increase the flexibility of services and enhance their quality. Career choice is an  important  decision  a  person  needs  to  make  in  his  life  time.  Unfortunately, many young people find it uneasy to make appropriate career choice. The  paper  focused  on  the  usage  of  career  counseling  services  in  selected public secondary schools in Nigeria. It sought to find out how students and teachers utilize  career  counseling  services,  students’  expectations  in  career  counseling services  and  how  school  principals  support  career  counseling  services.  Simple random  sampling  was  used  to  select  380  from 34  public  secondary  schools  from  the  sample  population.  Four-point Likert scale questionnaires were used to obtain data for the study. The findings revealed that the students use career counseling services to take career decision and aspiration, gather career information and select and take subjects that match their career interest. Secondary school teachers use career counseling services to guide students to make appropriate subject choice that match their career interest and help them with their career challenges and plans. This paper recommends that career counselors should integrate use of ICT, through the use of chat rooms, email and social networking. In other words several choice of career could be show to the students on DVD and CD Video. They should also be exposed to TV and radio Chat on Career choice.DOI: http://dx.doi.org/10.11591/ijere.v1i1.709
Volume: 1
Issue: 1
Page: 1-16
Publish at: 2012-07-01

Hybrid Methodology Involving Scrum and Waterfall Model towards the Software Project Development in Academic Knowledge Centers

https://ijere.iaescore.com/index.php/IJERE/article/view/4424
Sonali Pathak , Pallavi Saxena
Software project development in academia has the core objective to provide the student with an effective space to work in a team, interact with users, develop prototype, develop documentation, and improve presentation skills. An academic survey was done and it was found that the major challenge being faced by the institutes is the slack in controlling and tracking the project development activities. This results in poor quality software product which is in no way comparable with the industrial projects. Also, the ineffective use of tools and technologies are of great concern. The lack of proper and effective communication among the team members as well as with their project supervisor is also a major problem. Factors like, lack of enthusiasm, commitment, and financial support invite unwarranted risks. Such unstructured and uncontrolled way of working often leads to unsuccessful projects. All these factors show that academia is lacking more on the managerial issues rather than technological issues.DOI: http://dx.doi.org/10.11591/ijere.v1i1.456
Volume: 1
Issue: 1
Page: 25-32
Publish at: 2012-07-01

Teaching Java Programming using CABLE in a Collaborative Online Environment

https://ijere.iaescore.com/index.php/IJERE/article/view/4425
Nigel McKelvey , Kevin Curran
With the emergence and evolution of computer hardware, software and networks - virtual classrooms now exist which enable teachers and students to experience learning activities and to work together at a distance either directly or on a part-time basis. We are increasingly confronted with a need for ‘lifelong training’ and it is becoming increasingly difficult for us to attend physical classrooms on a full-time basis. Research to date has highlighted an area of interest with regard to teaching computer programming in an online environment. We investigate here the use of a Cognitive Apprenticeship-Based Learning Environment (CABLE) in the teaching of Java programming in an attempt to validate its effectiveness. This paper outlines the result of using a pedagogical model which employed a combination of instructional strategies including directive support, responsive cognitive apprenticeship, collaborative learning, stimulating metacognition (organising, motivating (through a “spark”, modifying one’s own skills), and using various technologies via the use of online discussion through Blackboard.DOI: http://dx.doi.org/10.11591/ijere.v1i1.521
Volume: 1
Issue: 1
Page: 33-40
Publish at: 2012-07-01

A Novel Prediction Algorithm of DR Position Error Based on Bayesian Regularization Back-propagation Neural Network

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2448
Li Honglian , Fang Hong , Tang Ju , Zhang Jun , Zhang Jing
It is difficult to accurately reckon vehicle position for vehicle navigation system (VNS) during GPS outages, a novel prediction algorithm of dead reckon (DR) position error is put forward, which based on Bayesian regularization back-propagation (BRBP) neural network. DR, GPS position data are first de-noised and compared at different stationary wavelet transformation (SWT) decomposition level, and DR position error data are acquired after the SWT coefficients differences are reconstructed. A neural network to mimic position error property is trained with back-propagation algorithm, and the algorithm is improved for improving its generalization by Bayesian regularization theory. During GPS outages, the established prediction algorithm predictes DR position errors, and provides precise position for VNS through DR position error data updating DR position data. The simulation results show the positioning precision of the BRBP algorithm is best among the presented prediction algorithms such as simple DR and adaptive linear network, and a precise mathematical model of navigation sensors isn’t established. DOI: http://dx.doi.org/10.11591/telkomnika.v11i7.2852
Volume: 11
Issue: 7
Page: 4004-4011
Publish at: 2012-07-01

Mobile Camera as a Human Vision in Augmented Reality

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/2396
Edmund Ng Gaip Weng , Rehman Ullah Khan , Shahren Ahmad Zaidi Adruce , Oon Yin Bee
The real world objects can be recognized by using marker based and marker-less augmented reality systems. Mostly, the previous developers used markers based augmented reality systems. However, those systems actually hide the reality and it was also difficult to keep the markers everywhere. Furthermore, the previous marker-less approaches use client-server architecture, which is drastically affected by network latency. Smartphone camera is matured enough that it can recognize real world objects without markers. It can guide users about their location and the direction in a convenient way. The use of Smartphone is best suited for outdoor mobile augmented-reality applications. Therefore, a marker-less natural features based tracking system in mobile augmented reality was formulated. In the adapted framework, the state-of-the-art algorithm (speed up robust features) was modified for computing image features from live mobile camera image and compares with locally stored images features for recognition. Moreover, the local static database of location tagged image features using SQLite was implemented to bypass the server. The proposed system was tested in a mobile AR-prototype application using iPhone called UNIMAS Guide. It was found from the results that the adapted marker-less system could recognize the real world objects in speedy, easy and convenient way. This technology can be applied in tourism industry, surgery and educational fields. DOI: http://dx.doi.org/10.11591/telkomnika.v11i7.2798
Volume: 11
Issue: 7
Page: 3568-3575
Publish at: 2012-07-01

Aftermath of ICT Literacy on Prevalence of Malaria Parasite among HIV/AIDS Patients

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4588
Vivian N , Nathaniel Oye
The role of ICT in the prevention and mitigation efforts for HIV/AIDS cannot be over emphasized. The greatest advantage of ICTs is that they can reach out to remotest areas.  So through the innovative use of ICTs youths and even adults can have access to HIV/AIDS programmes that can meet their needs. The paper focuses on the aftermath of ICT literacy on malaria parasite among HIV/AIDS patients. Therefore, to achieve positive results in the fight against HIV/AIDS ICTs should be taken on board. HIV/AIDS information should be found everywhere i.e. radio, cell phone, TV and internet. ICTs make HIV/AIDS information easily accessible, confidential and user friendly. The study has shown the possibility of co-infection of HIV positive or negative patients with malaria and HBsAg. This phenomenon could increase the severity of HIV infection and facilitate the progression of HIV to AIDS. The practices of universal screening of blood should be implemented to improve the safety of blood supply so as to reduce the risk of Hepatitis B Virus (HBV) and Human Immunodeficiency Virus (HIV).  More malaria enlightenment programmes by the Local Community, the government and nongovernmental organization should be implemented.DOI: http://dx.doi.org/10.11591/ijphs.v1i1.539
Volume: 1
Issue: 1
Page: 25-36
Publish at: 2012-07-01

Effect of Public Librairies in the Attainment of Health Millennium Development Goals in Senegal

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4586
Papa Gallo Sow , V. Vinekar
This study surveys the roles of Public libraries in the attainment of health Millennium Development Goals in Senegal. It also identifies the health-information needs of the community and information services rendered by the libraries. The role of public libraries in the attainment of health-MDGs has been a daunting task for public libraries as a result of government negligence. The methodology adopted for the study is the survey design in which questionnaires was used for obtaining data. The target population was public library staff/users in Senegal. The result showed that public libraries have played significant role towards the attainment of health-MDGs and library users make significant demand for all categories of health information especially in the area of maternal and childcare. However, majority of the public libraries have no Internet services. The findings makes it imperative for all other relevant agencies to key into the health-MDGs especially in assisting the Public Libraries. The study will bring to the awareness of users, the roles public libraries plays in supporting local and international policies and the provision of information services for library users.DOI: http://dx.doi.org/10.11591/ijphs.v1i1.701
Volume: 1
Issue: 1
Page: 11-18
Publish at: 2012-07-01

Environmental Influences Cause Stress on the Use of Computer

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4587
I Ketut Wijaya
Working with a computer over a period long enough to be done. Computer is the best medium currently in appearance and in the way of working, because the computer can assist in completing the work in a more rapid, efficient and very easy to use. With the convenience offered by the computer, almost all the work can be done with computer. Computers are a necessity in supporting work and communication tool that is quite reliable. The computer is useful in life, but can also cause problems on users, the computer can issue radiation that affects the condition of the user as well as ignorance in using computers can cause Repetitive Strain Injury (RSI). Besides, the use of computers can lead to stress as a result of incomprehension  in determining the condition of the environment on room. To be able to know the stress resulting from the use of computer, conducted research with a sample of 30 people at Udayana University Computer Science students with a design the same subject. Data analysis was performed with SPSS 13.00 and differences in the data before and after the redesigned (improvement), that do use the test independent sample t-test (t test group), at the level of significance of 5%. After a redesigned (improvement) on the environmental temperature is obtained decrease in the standard cold temperatures of Indonesia work of 28.00 C to 25.83 C, occupational stress decreased from 86% to 42%, and improve learning outcomes from 59.6% to 98.1%.. Thus It can be concluded that due to improvements made agains environmentally ergonomic standards can reduce the stress of work. Keywords: Computers; Stress.DOI: http://dx.doi.org/10.11591/ijphs.v1i1.419
Volume: 1
Issue: 1
Page: 19-24
Publish at: 2012-07-01

Antibiotic Prophylaxis in Caesarean Section

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4584
Raj Kumar Thapa , Bishrawa Bhandari , Kapil Adhikari , Pramila Katila , Prativa Baral , Gulam Muhammad Khan
To study the use of prophylactic antibiotics in caesarean section (CS), a cross-sectional study was conducted at Western Regional Hospital of Nepal for 3 months period. Non-random purposive sampling was done and data about the women undergoing CS was collected using the data collection form. This study included a total of 188 women undergoing CS. The result showed that 42.6% of the women were of 20-24 years of age followed by 31.9% of 25-29 years. The indications for CS included cephalopelvic disproportion (62.2%), oligohydraminos (20.2%), breech presentation (18.1%) and fetal distress (10.1%). Failed induction, multiple pregnancy, failure to progress, dystocia and preeclampsia/eclampsia were relatively rare indications. Elective and emergency CS was common between the age group20-24 and 25-29 years whereas emergency CS was more common than elective in the age group below 20 and above 39 years. In 99.5% cases metronidazole, 50.5% cases ciprofloxacin and 50.5% cases gentamycin was used for prophylaxis. Of the total women 50% of the women got 3 antibiotics for prophylaxis followed by 47.9% of them who got 2 antibiotics for prophylaxis. The average length of hospital stay was found to be 6.7 days. The results obtained from the study revealed that CS was prevalent in Western region of Nepal and prophylactic antibiotics were commonly used in women undergoing CS. Key Words: Caesarean section, Antibiotic prophylaxis, NepalDOI: http://dx.doi.org/10.11591/ijphs.v1i1.280
Volume: 1
Issue: 1
Page: 1-6
Publish at: 2012-07-01

Study of Oxidative Stress in Relation with Antioxidant Status in Chronic Bronchitis

https://ijphs.iaescore.com/index.php/IJPHS/article/view/4585
Anita Madhav Raut , A.N. Suryakar , Dilip Mhaisekar
Lipid peroxide plays an important role in inflammatory lung diseases. Increased epithelial permeability produced by cigarette smoke is likely to be mediated though depletion of the Total Antioxidant Capacity .Oxidative stress has been recognized as a central feature of smoke induced chronic bronchitis. Imbalance between oxidants and Total Anioxidant Capacity is also an established fact in these patients. 60 patients with chronic bronchitis included in the study. Their base line clinical examination, malondialdehyde (MDA), nitric oxide, alpha tochopherol and Total Antioxidant Capacity were measured. 100 healthy non-smokers’ were served as controls. The mean malondialdehyde levels and nitric oxide in the patients at base line were higher than Controls (p<0.001). Plasma alpha-tocopherol and total antioxidant capacity were lower (p<0.001) in the patients compared to controls. The present study shows that initially the plasma lipid peroxide (MDA) levels were high and antioxidants. (alpha- tocopherol, total antioxidant capacity) were low in patients with chronic bronchitis. Our results suggest the presence of oxidative stress and decrease in total antioxidant capacity in chronic bronchitis.DOI: http://dx.doi.org/10.11591/ijphs.v1i1.523
Volume: 1
Issue: 1
Page: 7-10
Publish at: 2012-07-01

Vehicle Accident Automatic Detection and Remote Alarm Device

10.11591/ijres.v1.i2.pp49-54
Varsha Goud
The Rapid growth of  technology and infrastructure has made our lives more easy . The advent of technology has also increased the traffic hazards and the  road  accident take place frequently which causes huge loss of life and property because of the poor emergency facilities. Our project will provide an optimum solution to this draw back. An accelerometer can be used in a car alarm application so that dangerous driving can be detected . It can be used as a crash or rollover detector of the vehicle during and after a crash. With signals from an accelerometer, a severe accident can be recognized. According to this project when a vehicle meets with an accident immediately Vibration sensor will detect the signal or if a car rolls over, an Micro electro mechanical system(MEMS) sensor will detects the signal and sends it to ARM controller. Microcontroller sends the alert message through the GSM MODEM including the location to police control room or a rescue team. So the police can immediately trace the location through the GPS MODEM, after receiving the information. Then after conforming the location necessary action will be taken. If the person meets with a small accident or if there is no serious threat to anyone`s life, then the alert message can be terminated by the driver by a switch provided in order to avoid wasting the valuable time of the medical rescue team. This paper is useful in detecting the accident precisely by means of both vibration sensor and Micro electro Mechanical system(MEMS) or accelerometer. As there is a scope for improvement and as a future implementation we can add a wireless webcam for capturing the images which will help in providing driver`s assistance. Keywords - Accident ,Automatic Detection, Micro electro Mechanical system , Remote Alarm Device, Vehicle
Volume: 1
Issue: 2
Page: 49-54
Publish at: 2012-07-01

Controller for Network Interface Card on FPGA

10.11591/ijres.v1.i2.pp55-58
Suchita Kamble , N. N. Mhala
The continuing advances in the performance of network servers make it essential for network interface cards (NICs) to provide more sophisticated services and data processing. Modern network interfaces provide fixed functionality and are optimized for sending and receiving large packets. Network interface cards allow the operating system to send and receive packets through the main memory to the network. The operating system stores and retrieves data from the main memory and communicates with the NIC over the local interconnect, usually a peripheral component interconnect bus (PCI). Most NICs have a PCI hardware interface to the host server, use a device driver to communicate with the operating system and use local receive and transmit storage buffers. NICs typically have a direct memory access (DMA) engine to transfer data between host memory and the network interface memory. In addition, NICs include a medium access control (MAC) unit to implement the link level protocol for the underlying network such as Ethernet, and use a signal processing hardware to implement the physical (PHY) layer defined in the network. To execute and synchronize the above operations NICs also contents controller whose architecture is customized for network data transfer. In this paper we present the architecture of application specific controller that can be used in NICs.
Volume: 1
Issue: 2
Page: 55-58
Publish at: 2012-07-01
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