333 research outputs found

    Evaluating current authentication methods: Prediction of a more suitable authentication approach for public interaction

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    The trend in information technology is towards achieving ubiquitous service rendering where barriers (geographical, time) in getting information related services will be eliminated. A good example of this is the ATM machines used by banks for public banking services, the likes in other sectors are currently on the way.This paper explores the user’s perception on the current identity authentication (Token-based and Knowledgebased) with a view to predict a more secured authentication for authentication in public places.A survey study is conducted so as to justify the claims of the previous authors on the need to migrate from the conventional knowledge-based and tokenbased authentication methods to a more secured biometric authentication approach which makes impossible user’s impersonation, and thus minimizing fraud, particularly in business transactions.Also, biometrical identification was also reviewed with respect to the all known biometric identifiers where human iris data was revealed to be the best human trait that can be used for identification/authentication purposes in public zone

    The Effect of Electrolyte on Dye Sensitized Solar Cells Using Natural Dye from Mango (M. indica L.) Leaf as Sensitizer

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    Dye-sensitized solar cells (DSSC) were fabricated with mango leaf dye extracts as natural dye sensitizers at pH value of 5.20 and temperature of 18.1˚C. Methanol was used as dye-extracting solvent. DSSCs from dye extract of M. indica L. with KMnO4 electrolyte had the highest photocurrent density of 1.3 mA/cm2 and fill factor FF of 0.46 for the sun at its peak. Potassium permanganate (KMnO4) had a photocurrent density of 1.3 mA/cm2 and FF of 0.8 at sundown. Potassium Iodide (KI), Potassium Bromide (KBr) and Mercury Chloride (HgCl2) electrolytes had 0.2 mA/cm2, 0.08 mA/cm2 and 0.02 mA/cm2 photocurrent densities respectively. The fill factors of 0.09, 0.03 and 0.003 respectively for sun overhead while 0.08 mA/cm2, 0.01 mA/cm2 and 0.01 mA/cm2 were the values of photocurrent densities respectively at sundown. The fill factors were 0.02, 0.0006 and 0.003 respectively at sundown. The maximum power Pmax of the DSSCs were 0.5 mW/cm2, 0.10 mW/cm2, 0.01 mW/cm2 and 0.012 mW/cm2 respectively at 1300 h at 1630 h 0.9 mW/cm2, 0.14 mW/cm2, 0.005 mW/cm2 and 0.0015 mW/cm2 respectively

    Adoption of e-voting systems: A case study of Independent National Electoral Commission (INEC), Nigeria: A preliminary study

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    The trend in the technological development has made the use of computer and its supporting technologies mandatory in virtually all aspects of life.This is never an exception in the conventional voting process.Several issues have been revealed associated with the manual voting system which makes it inappropriate in the emerging technology-driven society. Several countries have successfully implemented an electronic voting technology. Considering Nigeria as a developing nation with quite a number of constraints regarding technological innovations, there is therefore the need to investigate the readiness on the part of the organization empowered to conduct elections in the country (INEC) so as to pave ways for its successful implementation.In this paper, the relationship among the variables of adoption evidenced from the previous literature was investigated using correlation coefficients and multiple linear regressions.As a pilot study, only 47 responses were captured from senior staffs of INEC. The results show that there is strong relationship between the variables examined

    Socio-Economic Effects of Orisumbare Sawmilling Industries on The Residents of Ikire, Irewole Local Government Area Osun-State, Nigeria

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    The study examined the socio-economic effects of the Orisumbare sawmill industry on the residents of Ikire, Irewole local government area of Osun State. The objectives of the study include, examination of the socio-economic characteristics of the respondents, the positive effects of industry on the residents, the negative impacts of industry on the residents, and the perceived environmental-induced diseases caused by industrial activities. A case study research design was adopted, while both primary and secondary data were utilised. A multistage sampling technique was used, in which a buffer zone of 900m radius was made to delineate the zone of industries’ influence. This was later stratified into three zones, and a household head found in each of the residential buildings within the zone was randomly selected. A questionnaire was administered to 261 household heads in the sampled buildings. The collected data were analysed using both descriptive and logistic regression. Orisumbare sawmill had a positive significant impact on the residents of Ikire (F = 0.858). Sawmill activities have a significant effect on the socio-economic lives of the residents. Cottage industries should be harnessed in order to explore their opportunities, since the resources are not fully utilised

    AN INTEGRATED SYSTEM FOR DETECTION AND IDENTIFICATION OF SPAMBOT WITH ACTION SESSION AND LENGTH FREQUENCY

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    We propose an integrated system for detection and identification of spambot with action session and length frequency basedon the notion of control-flow graph, which models interactions of the end-user’s machine and browser with the Web site,and assists a lot in detecting possible anomalies. User’s interaction with the web is premised on Document Object Model(DOM) Events since the DOM forms a representation of the Web page which shows acceptance of asynchronous input fromthe user. The DOM is a platform-independent, event-driven interface which accepts input from the user and allows programsand scripts to access and update the content of the page. Proof of concept will be established by deploying the DOMantiSpambot as an add-on for Mozilla Firefox using JavaScript.Keywords: Antispam, DOM, detection, frequency, Action Session, Browsers and Web

    Is this Love? A Study of Deception in Online Romance in Nigeria

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    This work is a study of the interplay of online romance and deception among the users of social networking sites (SNS) in Nigeria, with a focus on how to avoid fake Internet love. The Interpersonal Deception theory underpinned the work while 369 copies of questionnaire were administered online to a sample drawn from a list of friends of four individual Facebook accounts, totaling 8763 participants. Findings exposed the prevalence of online romance deception and showed that users relied on a number of cues to detect deception, including verification from online friends. Inconsistencies during interactions have proved to be a good way of detecting fake lovers but it appears face-to-face meetings still hold the ace for genuine love

    Active vibration control of a beam with piezoelectric patches: real-time implementation with xPC target

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    Active control of a vibrating beam using smart materials such as piezoelectric materials is examined in this paper. A model based on Euler-Bernoulli beam equation has been developed and then extended with bonded three piezoelectric patches which act as sensor, actuator and exciter. The sensor and actuator are collocated to achieve a minimum phase. The aim of this research work is to control the first three resonant modes. To achieve this, a compensated inverse PID controller is developed and tuned to damp these modes using MATLAB. The designed controller for damping each mode is then combined in parallel to damp any of the three modes. Finally, the simulation results are verified experimentally and the real-time implementation is carried out with xPC target toolbox in MATLAB

    IDENTIFYING INFLUENTIAL BLOGGERS ON THE WEB

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    Blog has take an important aspect of internet since the introduction of Web 2.0 technology because blog as been away to influence others who read the blogs. People now have interest in finding materials and friends on the internet.Many users visit blog sites to read the posts and comment on them. Most people do read blog to gather informationon things that are important before take major decision about them. Because blogger always share their experienceon a topic for others to comments and through this others share their own experience. With the impact thatinfluential blogger have in a community. The benefits of achieving competitive advantages in a blog community byidentify influential blogger have created several research gaps and the popularity of these services has make theproblem of identifying the most influential bloggers significant, since its solution can lead to major benefits for theusers of this services i.e. education, politic, participatory journalism, advertising, searching, commerce etc. Thecurrent works in this regard ignore some important aspects of the blogsphere. This paper focuses on using acrossbreed method as an improvement to the existing methodologies. With the introduction of new parametersFBCount and Mining Comments the new approach show that the score of each blog post reflect quality andgoodness of blog post. A program prototype was designed to calculate the influential bloggers. The results obtainedconfirm that current approach could significantly identify influential of bloggers on the web and the proposed modelhas better performance than other approaches. There are still a few of avenues for the future research. Future workcan include full implementation of the program prototype and try to improve on it to directly get the parameters usedfrom the blog post on the web in a blog community, more parameters like twitter shares, G+1s Pin shares etc can beincluded into the literature and check for the behavior of the influence and future research can investigate more timein deciding weight parameter that is crucial for tuning between different influential factors.Keyword: Blog, Blogger, Social networks, Blogosphere, Influential bloggers, Influential, Models

    A SHETTLE’S METHOD MODEL FOR AUTOMATING PRECONCEPTION SEX SELECTION

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    The world over, and especially in Africa and Asia, couples show a preference for particular sex of children; eithermale or female. This preference may arise due to economic reasons, customs of the people, or simply for a “genderbalanced family”. Whatever the reasons, the fact still remains that couples would like to be able to choose the sex oftheir children. While there are various options to achieve sex selection, all of them are either too expensive or tooinvasive. This paper presents how Shettles’ method being the least expensive and the most reliable method ofpreconception sex selection was modeled to enable automation. The results show that it is a more consistent andreliable method for gender selection. In addition, the result also shows that the Shettles’ method lends itselffavourably to computer programming and would be very useful in the lives of couples that desire a particular genderof offspring.Keywords: Computer assisted, Preconception, Sex selection, Model, Programming

    Development of mechatronics engineering degree program: challenges and prospects

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    It is now becoming common practice to include some courses in mechatronics in the traditional electrical and mechanical engineering programs. Whilst many engineering faculties have realized the need for a full-fledged multidisciplinary mechatronics engineering program, only in very few places have such programs been developed along the lines of other engineering programs. The justification for the mechatronics engineering program becomes evident, as today's engineers must be acquainted with subjects that are not taught or given much emphasis in the traditional engineering curriculum. A good knowledge in those subjects, is however required if our graduate engineers are to be relevant to industry with time. The challenges in developing such program in terms of curriculum planning, laboratory facility needs and staff requirements are discussed in this paper. Whilst there are immense advantages of such a discipline, its success depends on a balanced curriculum with good laboratory facilities and appropriate industrial links, positive attitudes and well-oriented academic staff as well as students having the ability to cope with diversified subjects
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