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ZnO nanowires were synthesized via a vapor transport synthesis route. These nanowires were characterized by X-ray diffraction (XRD), field scanning electron microscopy (FESEM) and UV -- vis spectroscopy. The results of XRD revealed that monophasic nature of ZnO. The observation of FESEM images showed that the obtained ZnO nanowires were homogenous with average diameter of 30 nm. The photocatalytic...
Breast cancer is a cancer which occurs commonly for women of the entire world. [9] In this thesis, in order to find cancer by using image conformation technology, computer tomography (CT), positron emission tomography (PET) and magnetic resonance imaging (MRI) images were used. For conforming the images of each the different modalities, surface points, which become common feature of MRI and CT images...
In this paper, we proposes a novel hardware architecture and FPGA implementation method of high performance real-time face-detection engine for robustness to variable illumination and rotation. The proposed face detection algorithm improved its performance by using MCT (Modified Census Transform), rotation transformation and AdaBoost learning algorithm. For implementation, we used a QVGA class camera,...
In this paper, we try to formally analyze risk dependencies on a global logistics process that is made up of a set of RFID-driven biz-steps2. In enacting a global logistics process, it is very important to control and trace each bizstep's execution as well as to visualize its status. Moreover, for the sake of improving QoS (the quality of services), it ought to be crucial for the system to provide...
External threats to the cyber-infrastructure of an organization are constantly evolving. The greatest threat, however, is the problem of insiders who misuse their privileges for malicious purposes. These days, private information has often been leaked because of increased IT outsourcing, administrator's moral problems, multiple root accounts, and root accounts shared by many users, etc. Accordingly,...
In August of 2006 the US Government passed an executive order to implement electronic health records by 2014. Recent moves in global healthcare IT standards address many medical domains; however, there has been little attempt to provide interoperability in transport medicine. We present an Integrating the Healthcare Enterprise (IHE) profile for Transport Medicine, to facilitate interoperability between...
Our research team including graduate students both in Computer Science and Mathematics has been developing P-adic Exact Scientific Computational Library (ESCL) for rational matrix operations. The effort has been focusing on converting all rational number operations to integer calculation, and fully taking the advantage of fast integer multiplication of modern computer architectures [1]. By properly...
The purpose of the XCREAM (XLogic Collaborative RFID/USN-Enabled Adaptive Middleware) is to enable collaboration among many RFID/USN-enabled appplications by providing them with flexible interface to the XCREAM through a web-based service scheme, called the Enterprise Manager, and XML infrastructure language, the XLogic script language. Rapidly growing demand for collaboration among numerous and heterogeneous...
The evaluation system in e-commerce plays an important role when buying products. However, hitherto known evaluation systems are problems regarding incomplete and asymmetric information. We propose a new evaluation model and conduct assessment experiments to solve problems in evaluation system. In our proposed model, seller choices any evaluation attributes from trading properties. Then seller is...
This study aims to explain the users' adoption of Tcommerce, which is receiving a attention as a new profit model of IPTV, a representative telecommunications & broadcasting convergence technology. In order to develop a convergence service adoption model, utilitarian and hedonic motivation factors that explain selection and behavior of individual users; interactivity that reflects characteristics...
The use of Internet has influenced various industries, organizations, B2B transactions and relationship such as logistic or supply chain system. This paper is to look over the recent empirical researches about the E-business impact and their limitations, and to discuss the possible statistical models for assessing the E-business impact on various aspects.
With the emergence of smartphones, touchpads, as well as IP TVs, the enabling technologies for an interactive online shopping became important. The conceptual and technological issues around interactive online shopping environment are discussed by starting from investigating strengths and weaknesses of the Shopperama case.
This paper presents an autonomous exploration system using a robot equipped with a vision sensor but no range sensor. The fully automatic exploration system operating on a mobile robot determines the next motion in the environment. We extract ceiling boundaries from images. Then we use the pseudo range model that converts the ceiling boundary to range information. This paper proposes the vision based...
in this paper, we proposed a real-time object recognition system under smart phone environments. The proposed object recognition system consists of two key modules: feature extraction and object recognition. Feature detectors such as Scale Invariant Feature Transform (SIFT) and Speeded Up Robust Feature (SURF) are good methods which yield high quality features, however they are too computationally...
This paper proposes hybrid camera based video segmentation approach of human body for virtual reality e-learning system. Color and IR(Infra-red rays) image are used for human body segmentation at the same time. Human foreground pixels are separated from background in color and IR image respectively. And two foreground pixels are integrated as final foreground result for better performance of human...
With the advent of smart devices and the predominance of open platforms, security problems have been complicated and pivotal to security critical services such as mobile payment and banking, etc. While hardware technologies have been suggested to tackle this problem, we focus on the software-based approach. In this paper, we propose a secure execution environment that is designed to offer security...
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