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In this letter, a modified domain decomposition finite-difference time-domain method based on weighted Laguerre polynomials (DD-WLP-FDTD) is proposed for nonuniform subdomain interfaces in TEz case with perfectly matched layer (PML) absorbing boundary condition (ABC). The feasibility and accuracy of this modified DD-WLP-FDTD method are confirmed by two numerical examples. The maximum of the error...
Social networks have become an indispensable part of every day's life. A vast majority of people use at least one social network to communicate with friends or business partners. Different applications of social networks are used to meet diverse needs of users. Social networks use recommender systems to provide wider experience for their users. Friend recommendation has been the most popular and important...
Spatial Psychovisual Modulation (SPVM) is a newly proposed display technology which makes use of the redundancy in display capacity. Many applications (i.e., information security display and simultaneous dual-subtitle exhibition) have been developed based on SPVM. In the implementation of the SPVM systems, the original images are down-sampled line-by-line due to the property of polarization screens...
This paper presents a novel fault diagnosis model for oil-immersed power transformers based on dissolved gas analysis. The model is rooted on the theories of rough set and support vector machine. A fitness function based on attribute dependence is developed to identify fault features to improve classification accuracy of transformer fault samples by using Genetic Algorithm. To get improved classification...
It has been planned that the whole region of Slovak Republic's surface would be scanned, and there arose a need for storing the resulting data and making it publicly available. For this purpose, a scalable file-based database system for storing and accessing a large amount of geographic point cloud data was developed. The principle of the system was tested and proved to be sufficient in most situations,...
In the paper the authors briefly describe the aims and content of an international project focused on modernization of tertiary education in the target countries (the Ukraine, Armenia, and Georgia). The quality of teaching technical subjects is assured by providing practically oriented syllabi and modules in the embedded system environment and by creating remote laboratories in the target institutions.
Molecular dynamics simulations were performed for rat/mouse hemokinin-1, mammalian tachykinin peptide. A single rat/mouse hemokinin-1 was modeled in vacuum as well as in water. In the latter case it was surrounded by 264 SPC water molecules and a periodic boundary condition was applied. A large flexibility of the Arg1-Thr4 amino acids sequence was observed in vacuum in contrast to water simulation...
With the advance in technology, the computer storage will become cheaper for the larger sizes. Previously, it allows the user to store more data at a lower cost. In context of digital forensic investigation, the traditional approach such as analysis on the hard disk will become inefficient in handling the huge data that is stored within it. The research on retrieving the open files from computer memory...
Network packet classification plays a pivotal role in packet-switched networks; it is at the heart of many functions including firewalling, QoS routing, and OpenFlow-based switching. However, packet classification is a hard problem, as packets must be classified within a short time frame. Existing classification techniques use sophisticated data structures which are traversed by generic search algorithms—that...
In this paper, we apply efforts to explore the insights of sustainable development of states and to develop a model based on factor analysis aiming at evaluating sustainability in a qualitative and quantitative method, thus distinguishing more sustainable countries which can help elaborate sustainable development plans, and evaluate the effectiveness of such plans. We use the term Comprehensive Sustainability...
In this paper we describe the second stage of developing new Situation Awareness Training and investigation of its effectiveness on improving cognitive intercommunication with e-learning system. Situation Awareness training enhance of attentiveness as well as increase of exam's GPA and nonverbal intelligence indexes had been observed. Improvement of the exam results, mediated by attention increase,...
Wireless sensor network can deliver environment data in campus area as CO, NO2, HC, particulate matter, temperature, humidity, and luminous intensity to provide accurate realtime data. This realtime environment data is used for environment indexing accurately, and then can be developed in an expert system. This expert system collects input data from the sensor. This expert system will help giving...
Image inpainting is the meaningful reconstruction of lost, damaged or unwanted portions of an image by using the information from the proper undamaged portions of the same image. Image inpainting is an important process in image pro- cessing and has numerous applications in heritage conservation, restoration of old photographs, removal of occlusions, special effects in photos and so on. Here we replace...
Content-Based Image Retrieval (CBIR), a technique which uses visual contents to search images from large scale image databases according to users interests. In most of image retrieval systems, accurate and partial relevant matching is main issue. Partial duplicate image retrieval is most complicated task as region of interest may undergo occlusion, rotation, scaling and other transformations. Retrieval...
Trust is one of most important factor for selecting suitable trading partner in B2B e-market. There is no such single element on which trust can be measured it is conceptualized in different levels and methods. In this paper we proposed a cognition based trust model to measure trustworthiness of businesses in B2B e-market. This paper reports on design details of our model and empirical validation...
In this paper we propose a method for producing a citation summary of research articles that concentrates on the context of articles which cite the given article. Parameters for citation summary are selected in such a way that, this citation summary can be used to evaluate a qualitative citation index for the research articles. Considering some factors such as, semantic similarity between the citing...
Delay Tolerant Networks(DTNs) is network architecture designed to enable communication even in an unstable network connectivity between end. Nodes can't be pre-selected for a route because they can't know the information of the entire network. Therefore, the relay node should be selected effective to improve network performance. So the movement prediction scheme of the node is needed for this. In...
Based on the vector similarity theory, a new method of node importance ranking is proposed in this paper. The paper introduces four typical evaluation index of the node importance and points out their common faults. And the basic theory and steps of the vector similarity are discusses in detail. Finally, an example shows that the effectiveness and practicality of this method by the comparison of node...
Sparse matrix-vector multiplication (shortly spMV) and transposed spMV (shortly spMTV) are the most common routines in the numerical linear algebra. Sparse storage formats describe a way how sparse matrices are stored in a computer memory. Since the commonly used storage formats (like COO or CSR) are not sufficient for high-performance computations, extensive research has been conducted about maximal...
In this paper, first, we point out that fuzzy integers are not special cases of fuzzy numbers. Then, we define the concept of fuzzy integers, develop the methods for establishing rankings and total orderings on sets of fuzzy integers, and discuss the interrelationships between rankings and total orderings.
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