Search results for: Maros Barabas

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badge-info">4</span> Behavioral Signature Generation using Shadow Honeypot</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Maros%20Barabas">Maros Barabas</a>, <a href="https://publications.waset.org/search?q=Michal%20Drozd"> Michal Drozd</a>, <a href="https://publications.waset.org/search?q=Petr%20Hanacek"> Petr Hanacek </a> </p> <p class="card-text"><strong>Abstract:</strong></p> A novel behavioral detection framework is proposed to detect zero day buffer overflow vulnerabilities (based on network behavioral signatures) using zero-day exploits, instead of the signature-based or anomaly-based detection solutions currently available for IDPS techniques. At first we present the detection model that uses shadow honeypot. Our system is used for the online processing of network attacks and generating a behavior detection profile. The detection profile represents the dataset of 112 types of metrics describing the exact behavior of malware in the network. In this paper we present the examples of generating behavioral signatures for two attacks – a buffer overflow exploit on FTP server and well known Conficker worm. We demonstrated the visualization of important aspects by showing the differences between valid behavior and the attacks. Based on these metrics we can detect attacks with a very high probability of success, the process of detection is however very expensive. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=behavioral%20signatures" title="behavioral signatures">behavioral signatures</a>, <a href="https://publications.waset.org/search?q=metrics" title=" metrics"> metrics</a>, <a href="https://publications.waset.org/search?q=network" title=" network"> network</a>, <a href="https://publications.waset.org/search?q=security%0Adesign" title=" security design"> security design</a> </p> <a href="https://publications.waset.org/15875/behavioral-signature-generation-using-shadow-honeypot" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/15875/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/15875/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/15875/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/15875/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/15875/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/15875/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/15875/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/15875/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/15875/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/15875/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/15875.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2054</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Influence of Inertial Forces of Large Bearings Utilized in Wind Energy Assemblies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=S.%20Barabas">S. Barabas</a>, <a href="https://publications.waset.org/search?q=F.%20Sarbu"> F. Sarbu</a>, <a href="https://publications.waset.org/search?q=B.%20Barabas"> B. Barabas</a>, <a href="https://publications.waset.org/search?q=A.%20Fota"> A. Fota</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Main objective of this paper is to establish a link between inertial forces of the bearings used in construction of wind power plant and its behavior. Using bearings with lower inertial forces has the immediate effect of decreasing inertia rotor system, with significant results in increased energy efficiency, due to decreased friction forces between rollers and raceways. The F.E.M. analysis shows the appearance of uniform contact stress at the ends of the rollers, demonstrated the necessity of production of low mass bearings. Favorable results are expected in the economic field, by reducing material consumption and by increasing the durability of bearings. Using low mass bearings with hollow rollers instead of solid rollers has an impact on working temperature, on vibrations and noise which decrease. Implementation of types of hollow rollers of cylindrical tubular type, instead of expensive rollers with logarithmic profile, will bring significant inertial forces decrease with large benefits in behavior of wind power plant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Inertial%20forces" title="Inertial forces">Inertial forces</a>, <a href="https://publications.waset.org/search?q=Von%20Mises%20stress" title=" Von Mises stress"> Von Mises stress</a>, <a href="https://publications.waset.org/search?q=hollow%20rollers." title=" hollow rollers."> hollow rollers.</a> </p> <a href="https://publications.waset.org/10002223/influence-of-inertial-forces-of-large-bearings-utilized-in-wind-energy-assemblies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10002223/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10002223/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10002223/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10002223/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10002223/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10002223/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10002223/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10002223/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10002223/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10002223/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10002223.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2267</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Analysis of Hollow Rollers Implementation in Flexible Manufacturing of Large Bearings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=S.%20Barabas">S. Barabas</a>, <a href="https://publications.waset.org/search?q=A.Fota."> A.Fota.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper is study the possibility of successfully implementing of hollow roller concept in order to minimize inertial mass of the large bearings, with major results in diminution of the material consumption, increasing of power efficiency (in wind power station area), increasing of the durability and life duration of the large bearings systems, noise reduction in working, resistance to vibrations, an important diminution of losses by abrasion and reduction of the working temperature. In this purpose was developed an original solution through which are reduced mass, inertial forces and moments of large bearings by using of hollow rollers. The research was made by using the method of finite element analysis applied on software type Solidworks - Nastran. Also, is study the possibility of rapidly changing the manufacturing system of solid and hollow cylindrical rollers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Large%20bearings" title="Large bearings">Large bearings</a>, <a href="https://publications.waset.org/search?q=Von%20Mises%20stress" title=" Von Mises stress"> Von Mises stress</a>, <a href="https://publications.waset.org/search?q=hollow%20rollers" title=" hollow rollers"> hollow rollers</a>, <a href="https://publications.waset.org/search?q=flexible%20manufacturing%20system" title="flexible manufacturing system">flexible manufacturing system</a> </p> <a href="https://publications.waset.org/305/analysis-of-hollow-rollers-implementation-in-flexible-manufacturing-of-large-bearings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/305/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/305/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/305/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/305/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/305/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/305/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/305/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/305/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/305/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/305/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/305.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2249</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Determination and Comparison of Fabric Pills Distribution Using Image Processing and Spatial Data Analysis Tools</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Lenka%20Technikov%C3%A1">Lenka Techniková</a>, <a href="https://publications.waset.org/search?q=Maro%C5%A1%20Tun%C3%A1k"> Maroš Tunák</a>, <a href="https://publications.waset.org/search?q=Ji%C5%99%C3%AD%20Jan%C3%A1%C4%8Dek"> Jiří Janáček</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>This work deals with the determination and comparison of pill patterns in 2 sets of fabric samples which differ in way of pill creation. The first set contains fabric samples with the pills created by simulation on a Martindale abrasion machine, while pills in the second set originated during normal wearing and maintenance. The goal of the study is to determine whether the pattern of the fabric pills created by simulation is the same as the pattern of naturally occurring pills. The system of determination and comparison of the pills is based on image processing and spatial data analysis tools. Firstly, 3D reconstruction of the fabric surfaces with the pills is realized with using a gradient fields method. The gradient fields method creates a 3D fabric surface from a set of 4 images. Thereafter, the pills are detected in 3D fabric surfaces using image-processing tools in the MATLAB software. Determination and comparison of the pills patterns of two sets of fabric samples is based on spatial data analysis using tools in R software.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=3D%20reconstruction%20of%20the%20surface" title="3D reconstruction of the surface">3D reconstruction of the surface</a>, <a href="https://publications.waset.org/search?q=image%20analysis%20tools" title=" image analysis tools"> image analysis tools</a>, <a href="https://publications.waset.org/search?q=distribution%20of%20the%20pills" title=" distribution of the pills"> distribution of the pills</a>, <a href="https://publications.waset.org/search?q=spatial%20data%20analysis%20tools." title=" spatial data analysis tools."> spatial data analysis tools.</a> </p> <a href="https://publications.waset.org/16946/determination-and-comparison-of-fabric-pills-distribution-using-image-processing-and-spatial-data-analysis-tools" class="btn btn-primary 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Search results for: Maros Barabas