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access control</title> <meta name="description" content="Search results for: system access control"> <meta name="keywords" content="system access control"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="system access control"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 27498</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: system access control</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27498</span> Access Control System for Big Data Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Winfred%20Okoe%20Addy">Winfred Okoe Addy</a>, <a href="https://publications.waset.org/abstracts/search?q=Jean%20Jacques%20Dominique%20Beraud"> Jean Jacques Dominique Beraud</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Access control systems (ACs) are some of the most important components in safety areas. Inaccuracies of regulatory frameworks make personal policies and remedies more appropriate than standard models or protocols. This problem is exacerbated by the increasing complexity of software, such as integrated Big Data (BD) software for controlling large volumes of encrypted data and resources embedded in a dedicated BD production system. This paper proposes a general access control strategy system for the diffusion of Big Data domains since it is crucial to secure the data provided to data consumers (DC). We presented a general access control circulation strategy for the Big Data domain by describing the benefit of using designated access control for BD units and performance and taking into consideration the need for BD and AC system. We then presented a generic of Big Data access control system to improve the dissemination of Big Data. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=access%20control" title="access control">access control</a>, <a href="https://publications.waset.org/abstracts/search?q=security" title=" security"> security</a>, <a href="https://publications.waset.org/abstracts/search?q=Big%20Data" title=" Big Data"> Big Data</a>, <a href="https://publications.waset.org/abstracts/search?q=domain" title=" domain"> domain</a> </p> <a href="https://publications.waset.org/abstracts/132951/access-control-system-for-big-data-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/132951.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">134</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27497</span> RAPDAC: Role Centric Attribute Based Policy Driven Access Control Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jamil%20Ahmed">Jamil Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Access control models aim to decide whether a user should be denied or granted access to the user‟s requested activity. Various access control models have been established and proposed. The most prominent of these models include role-based, attribute-based, policy based access control models as well as role-centric attribute based access control model. In this paper, a novel access control model is presented called “Role centric Attribute based Policy Driven Access Control (RAPDAC) model”. RAPDAC incorporates the concept of “policy” in the “role centric attribute based access control model”. It leverages the concept of "policy‟ by precisely combining the evaluation of conditions, attributes, permissions and roles in order to allow authorization access. This approach allows capturing the "access control policy‟ of a real time application in a well defined manner. RAPDAC model allows making access decision at much finer granularity as illustrated by the case study of a real time library information system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=authorization" title="authorization">authorization</a>, <a href="https://publications.waset.org/abstracts/search?q=access%20control%20model" title=" access control model"> access control model</a>, <a href="https://publications.waset.org/abstracts/search?q=role%20based%20access%20control" title=" role based access control"> role based access control</a>, <a href="https://publications.waset.org/abstracts/search?q=attribute%20based%20access%20control" title=" attribute based access control"> attribute based access control</a> </p> <a href="https://publications.waset.org/abstracts/129022/rapdac-role-centric-attribute-based-policy-driven-access-control-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/129022.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">159</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27496</span> Component Lifecycle and Concurrency Model in Usage Control (UCON) System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=P.%20Ghann">P. Ghann</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Shiguang"> J. Shiguang</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Zhou"> C. Zhou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Access control is one of the most challenging issues facing information security. Access control is defined as, the ability to permit or deny access to a particular computational resource or digital information by an unauthorized user or subject. The concept of usage control (UCON) has been introduced as a unified approach to capture a number of extensions for access control models and systems. In UCON, an access decision is determined by three factors: Authorizations, obligations and conditions. Attribute mutability and decision continuity are two distinct characteristics introduced by UCON for the first time. An observation of UCON components indicates that, the components are predefined and static. In this paper, we propose a new and flexible model of usage control for the creation and elimination of some of these components; for example new objects, subjects, attributes and integrate these with the original UCON model. We also propose a model for concurrent usage scenarios in UCON. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=access%20control" title="access control">access control</a>, <a href="https://publications.waset.org/abstracts/search?q=concurrency" title=" concurrency"> concurrency</a>, <a href="https://publications.waset.org/abstracts/search?q=digital%20container" title=" digital container"> digital container</a>, <a href="https://publications.waset.org/abstracts/search?q=usage%20control" title=" usage control"> usage control</a> </p> <a href="https://publications.waset.org/abstracts/3175/component-lifecycle-and-concurrency-model-in-usage-control-ucon-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3175.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">321</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27495</span> An Attribute Based Access Control Model with POL Module for Dynamically Granting and Revoking Authorizations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gang%20Liu">Gang Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Huimin%20Song"> Huimin Song</a>, <a href="https://publications.waset.org/abstracts/search?q=Can%20Wang"> Can Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Runnan%20Zhang"> Runnan Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Lu%20Fang"> Lu Fang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Currently, resource sharing and system security are critical issues. This paper proposes a POL module composed of PRIV ILEGE attribute (PA), obligation and log which improves attribute based access control (ABAC) model in dynamically granting authorizations and revoking authorizations. The following describes the new model termed PABAC in terms of the POL module structure, attribute definitions, policy formulation and authorization architecture, which demonstrate the advantages of it. The POL module addresses the problems which are not predicted before and not described by access control policy. It can be one of the subject attributes or resource attributes according to the practical application, which enhances the flexibility of the model compared with ABAC. A scenario that illustrates how this model is applied to the real world is provided. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=access%20control" title="access control">access control</a>, <a href="https://publications.waset.org/abstracts/search?q=attribute%20based%20access%20control" title=" attribute based access control"> attribute based access control</a>, <a href="https://publications.waset.org/abstracts/search?q=granting%20authorizations" title=" granting authorizations"> granting authorizations</a>, <a href="https://publications.waset.org/abstracts/search?q=privilege" title=" privilege"> privilege</a>, <a href="https://publications.waset.org/abstracts/search?q=revoking%20authorizations" title=" revoking authorizations"> revoking authorizations</a>, <a href="https://publications.waset.org/abstracts/search?q=system%20security" title=" system security"> system security</a> </p> <a href="https://publications.waset.org/abstracts/65275/an-attribute-based-access-control-model-with-pol-module-for-dynamically-granting-and-revoking-authorizations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65275.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">359</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27494</span> Development of a Sequential Multimodal Biometric System for Web-Based Physical Access Control into a Security Safe</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Babatunde%20Olumide%20Olawale">Babatunde Olumide Olawale</a>, <a href="https://publications.waset.org/abstracts/search?q=Oyebode%20Olumide%20Oyediran"> Oyebode Olumide Oyediran</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The security safe is a place or building where classified document and precious items are kept. To prevent unauthorised persons from gaining access to this safe a lot of technologies had been used. But frequent reports of an unauthorised person gaining access into security safes with the aim of removing document and items from the safes are pointers to the fact that there is still security gap in the recent technologies used as access control for the security safe. In this paper we try to solve this problem by developing a multimodal biometric system for physical access control into a security safe using face and voice recognition. The safe is accessed by the combination of face and speech pattern recognition and also in that sequential order. User authentication is achieved through the use of camera/sensor unit and a microphone unit both attached to the door of the safe. The user face was captured by the camera/sensor while the speech was captured by the use of the microphone unit. The Scale Invariance Feature Transform (SIFT) algorithm was used to train images to form templates for the face recognition system while the Mel-Frequency Cepitral Coefficients (MFCC) algorithm was used to train the speech recognition system to recognise authorise user’s speech. Both algorithms were hosted in two separate web based servers and for automatic analysis of our work; our developed system was simulated in a MATLAB environment. The results obtained shows that the developed system was able to give access to authorise users while declining unauthorised person access to the security safe. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=access%20control" title="access control">access control</a>, <a href="https://publications.waset.org/abstracts/search?q=multimodal%20biometrics" title=" multimodal biometrics"> multimodal biometrics</a>, <a href="https://publications.waset.org/abstracts/search?q=pattern%20recognition" title=" pattern recognition"> pattern recognition</a>, <a href="https://publications.waset.org/abstracts/search?q=security%20safe" title=" security safe"> security safe</a> </p> <a href="https://publications.waset.org/abstracts/73150/development-of-a-sequential-multimodal-biometric-system-for-web-based-physical-access-control-into-a-security-safe" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73150.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">335</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27493</span> Structured Access Control Mechanism for Mesh-based P2P Live Streaming Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chuan-Ching%20Sue">Chuan-Ching Sue</a>, <a href="https://publications.waset.org/abstracts/search?q=Kai-Chun%20Chuang"> Kai-Chun Chuang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Peer-to-Peer (P2P) live streaming systems still suffer a challenge when thousands of new peers want to join into the system in a short time, called flash crowd, and most of new peers suffer long start-up delay. Recent studies have proposed a slot-based user access control mechanism, which periodically determines a certain number of new peers to enter the system, and a user batch join mechanism, which divides new peers into several tree structures with fixed tree size. However, the slot-based user access control mechanism is difficult for accurately determining the optimal time slot length, and the user batch join mechanism is hard for determining the optimal tree size. In this paper, we propose a structured access control (SAC) mechanism, which constructs new peers to a multi-layer mesh structure. The SAC mechanism constructs new peer connections layer by layer to replace periodical access control, and determines the number of peers in each layer according to the system’s remaining upload bandwidth and average video rate. Furthermore, we propose an analytical model to represent the behavior of the system growth if the system can utilize the upload bandwidth efficiently. The analytical result has shown the similar trend in system growth as the SAC mechanism. Additionally, the extensive simulation is conducted to show the SAC mechanism outperforms two previously proposed methods in terms of system growth and start-up delay. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=peer-to-peer" title="peer-to-peer">peer-to-peer</a>, <a href="https://publications.waset.org/abstracts/search?q=live%20video%20streaming%20system" title=" live video streaming system"> live video streaming system</a>, <a href="https://publications.waset.org/abstracts/search?q=flash%20crowd" title=" flash crowd"> flash crowd</a>, <a href="https://publications.waset.org/abstracts/search?q=start-up%20delay" title=" start-up delay"> start-up delay</a>, <a href="https://publications.waset.org/abstracts/search?q=access%20control" title=" access control"> access control</a> </p> <a href="https://publications.waset.org/abstracts/24987/structured-access-control-mechanism-for-mesh-based-p2p-live-streaming-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24987.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">318</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27492</span> SPBAC: A Semantic Policy-Based Access Control for Database Query</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aaron%20Zhang">Aaron Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Alimire%20Kahaer"> Alimire Kahaer</a>, <a href="https://publications.waset.org/abstracts/search?q=Gerald%20Weber"> Gerald Weber</a>, <a href="https://publications.waset.org/abstracts/search?q=Nalin%20Arachchilage"> Nalin Arachchilage</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Access control is an essential safeguard for the security of enterprise data, which controls users’ access to information resources and ensures the confidentiality and integrity of information resources [1]. Research shows that the more common types of access control now have shortcomings [2]. In this direction, to improve the existing access control, we have studied the current technologies in the field of data security, deeply investigated the previous data access control policies and their problems, identified the existing deficiencies, and proposed a new extension structure of SPBAC. SPBAC extension proposed in this paper aims to combine Policy-Based Access Control (PBAC) with semantics to provide logically connected, real-time data access functionality by establishing associations between enterprise data through semantics. Our design combines policies with linked data through semantics to create a "Semantic link" so that access control is no longer per-database and determines that users in each role should be granted access based on the instance policy, and improves the SPBAC implementation by constructing policies and defined attributes through the XACML specification, which is designed to extend on the original XACML model. While providing relevant design solutions, this paper hopes to continue to study the feasibility and subsequent implementation of related work at a later stage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=access%20control" title="access control">access control</a>, <a href="https://publications.waset.org/abstracts/search?q=semantic%20policy-based%20access%20control" title=" semantic policy-based access control"> semantic policy-based access control</a>, <a href="https://publications.waset.org/abstracts/search?q=semantic%20link" title=" semantic link"> semantic link</a>, <a href="https://publications.waset.org/abstracts/search?q=access%20control%20model" title=" access control model"> access control model</a>, <a href="https://publications.waset.org/abstracts/search?q=instance%20policy" title=" instance policy"> instance policy</a>, <a href="https://publications.waset.org/abstracts/search?q=XACML" title=" XACML"> XACML</a> </p> <a href="https://publications.waset.org/abstracts/168587/spbac-a-semantic-policy-based-access-control-for-database-query" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168587.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">92</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27491</span> BTG-BIBA: A Flexibility-Enhanced Biba Model Using BTG Strategies for Operating System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gang%20Liu">Gang Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Can%20Wang"> Can Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Runnan%20Zhang"> Runnan Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Quan%20Wang"> Quan Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Huimin%20Song"> Huimin Song</a>, <a href="https://publications.waset.org/abstracts/search?q=Shaomin%20Ji"> Shaomin Ji</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Biba model can protect information integrity but might deny various non-malicious access requests of the subjects, thereby decreasing the availability in the system. Therefore, a mechanism that allows exceptional access control is needed. Break the Glass (BTG) strategies refer an efficient means for extending the access rights of users in exceptional cases. These strategies help to prevent a system from stagnation. An approach is presented in this work for integrating Break the Glass strategies into the Biba model. This research proposes a model, BTG-Biba, which provides both an original Biba model used in normal situations and a mechanism used in emergency situations. The proposed model is context aware, can implement a fine-grained type of access control and primarily solves cross-domain access problems. Finally, the flexibility and availability improvement with the use of the proposed model is illustrated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Biba%20model" title="Biba model">Biba model</a>, <a href="https://publications.waset.org/abstracts/search?q=break%20the%20glass" title=" break the glass"> break the glass</a>, <a href="https://publications.waset.org/abstracts/search?q=context" title=" context"> context</a>, <a href="https://publications.waset.org/abstracts/search?q=cross-domain" title=" cross-domain"> cross-domain</a>, <a href="https://publications.waset.org/abstracts/search?q=fine-grained" title=" fine-grained"> fine-grained</a> </p> <a href="https://publications.waset.org/abstracts/65281/btg-biba-a-flexibility-enhanced-biba-model-using-btg-strategies-for-operating-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65281.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">541</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27490</span> Research and Implementation of Cross-domain Data Sharing System in Net-centric Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xiaoqing%20Wang">Xiaoqing Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jianjian%20Zong"> Jianjian Zong</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20Li"> Li Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Yanxing%20Zheng"> Yanxing Zheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinrong%20Tong"> Jinrong Tong</a>, <a href="https://publications.waset.org/abstracts/search?q=Mao%20Zhan"> Mao Zhan </a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the rapid development of network and communication technology, a great deal of data has been generated in different domains of a network. These data show a trend of increasing scale and more complex structure. Therefore, an effective and flexible cross-domain data-sharing system is needed. The Cross-domain Data Sharing System(CDSS) in a net-centric environment is composed of three sub-systems. The data distribution sub-system provides data exchange service through publish-subscribe technology that supports asynchronism and multi-to-multi communication, which adapts to the needs of the dynamic and large-scale distributed computing environment. The access control sub-system adopts Attribute-Based Access Control(ABAC) technology to uniformly model various data attributes such as subject, object, permission and environment, which effectively monitors the activities of users accessing resources and ensures that legitimate users get effective access control rights within a legal time. The cross-domain access security negotiation subsystem automatically determines the access rights between different security domains in the process of interactive disclosure of digital certificates and access control policies through trust policy management and negotiation algorithms, which provides an effective means for cross-domain trust relationship establishment and access control in a distributed environment. The CDSS’s asynchronous,multi-to-multi and loosely-coupled communication features can adapt well to data exchange and sharing in dynamic, distributed and large-scale network environments. Next, we will give CDSS new features to support the mobile computing environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=data%20sharing" title="data sharing">data sharing</a>, <a href="https://publications.waset.org/abstracts/search?q=cross-domain" title=" cross-domain"> cross-domain</a>, <a href="https://publications.waset.org/abstracts/search?q=data%20exchange" title=" data exchange"> data exchange</a>, <a href="https://publications.waset.org/abstracts/search?q=publish-subscribe" title=" publish-subscribe"> publish-subscribe</a> </p> <a href="https://publications.waset.org/abstracts/138191/research-and-implementation-of-cross-domain-data-sharing-system-in-net-centric-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138191.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">124</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27489</span> A Secure System for Handling Information from Heterogeous Sources</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shoohira%20Aftab">Shoohira Aftab</a>, <a href="https://publications.waset.org/abstracts/search?q=Hammad%20Afzal"> Hammad Afzal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Information integration is a well known procedure to provide consolidated view on sets of heterogeneous information sources. It not only provides better statistical analysis of information but also facilitates users to query without any knowledge on the underlying heterogeneous information sources The problem of providing a consolidated view of information can be handled using Semantic data (information stored in such a way that is understandable by machines and integrate-able without manual human intervention). However, integrating information using semantic web technology without any access management enforced, will results in increase of privacy and confidentiality concerns. In this research we have designed and developed a framework that would allow information from heterogeneous formats to be consolidated, thus resolving the issue of interoperability. We have also devised an access control system for defining explicit privacy constraints. We designed and applied our framework on both semantic and non-semantic data from heterogeneous resources. Our approach is validated using scenario based testing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=information%20integration" title="information integration">information integration</a>, <a href="https://publications.waset.org/abstracts/search?q=semantic%20data" title=" semantic data"> semantic data</a>, <a href="https://publications.waset.org/abstracts/search?q=interoperability" title=" interoperability"> interoperability</a>, <a href="https://publications.waset.org/abstracts/search?q=security" title=" security"> security</a>, <a href="https://publications.waset.org/abstracts/search?q=access%20control%20system" title=" access control system"> access control system</a> </p> <a href="https://publications.waset.org/abstracts/15778/a-secure-system-for-handling-information-from-heterogeous-sources" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15778.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">357</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27488</span> Highly Accurate Tennis Ball Throwing Machine with Intelligent Control</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ferenc%20Kov%C3%A1cs">Ferenc Kovács</a>, <a href="https://publications.waset.org/abstracts/search?q=G%C3%A1bor%20Hossz%C3%BA"> Gábor Hosszú</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper presents an advanced control system for tennis ball throwing machines to improve their accuracy according to the ball impact points. A further advantage of the system is the much easier calibration process involving the intelligent solution of the automatic adjustment of the stroking parameters according to the ball elasticity, the self-calibration, the use of the safety margin at very flat strokes and the possibility to placing the machine to any position of the half court. The system applies mathematical methods to determine the exact ball trajectories and special approximating processes to access all points on the aimed half court. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=control%20system" title="control system">control system</a>, <a href="https://publications.waset.org/abstracts/search?q=robot%20programming" title=" robot programming"> robot programming</a>, <a href="https://publications.waset.org/abstracts/search?q=robot%20control" title=" robot control"> robot control</a>, <a href="https://publications.waset.org/abstracts/search?q=sports%20equipment" title=" sports equipment"> sports equipment</a>, <a href="https://publications.waset.org/abstracts/search?q=throwing%20machine" title=" throwing machine"> throwing machine</a> </p> <a href="https://publications.waset.org/abstracts/36393/highly-accurate-tennis-ball-throwing-machine-with-intelligent-control" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36393.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">397</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27487</span> Guidelines for Proper Internal Control of Internet Payment: A Case Study of Internet Payment Gateway, Thailand</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pichamon%20Chansuchai">Pichamon Chansuchai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this research were to investigate electronic payment system on the internet and offer the guidelines for proper internal control of the payment system based on international standard security control (ISO/IEC 17799:2005),in a case study of payment of the internet, Thailand. The guidelines covered five important areas: (1) business requirement for access control, (2) information systems acquisition, development and maintenance, (3) information security incident management, (4) business continuity management, and (5) compliance with legal requirement. The findings from this qualitative study revealed the guidelines for proper internet control that were more reliable and allow the same line of business to implement the same system of control. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=audit" title="audit">audit</a>, <a href="https://publications.waset.org/abstracts/search?q=best%20practice" title=" best practice"> best practice</a>, <a href="https://publications.waset.org/abstracts/search?q=internet" title=" internet"> internet</a>, <a href="https://publications.waset.org/abstracts/search?q=payment" title=" payment"> payment</a> </p> <a href="https://publications.waset.org/abstracts/14455/guidelines-for-proper-internal-control-of-internet-payment-a-case-study-of-internet-payment-gateway-thailand" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14455.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">500</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27486</span> Survey of Access Controls in Cloud Computing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Monirah%20Alkathiry">Monirah Alkathiry</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanan%20Aljarwan"> Hanan Aljarwan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cloud computing is one of the most significant technologies that the world deals with, in different sectors with different purposes and capabilities. The cloud faces various challenges in securing data from unauthorized access or modification. Consequently, security risks and levels have greatly increased. Therefore, cloud service providers (CSPs) and users need secure mechanisms that ensure that data are kept secret and safe from any disclosures or exploits. For this reason, CSPs need a number of techniques and technologies to manage and secure access to the cloud services to achieve security goals, such as confidentiality, integrity, identity access management (IAM), etc. Therefore, this paper will review and explore various access controls implemented in a cloud environment that achieve different security purposes. The methodology followed in this survey was conducting an assessment, evaluation, and comparison between those access controls mechanisms and technologies based on different factors, such as the security goals it achieves, usability, and cost-effectiveness. This assessment resulted in the fact that the technology used in an access control affects the security goals it achieves as well as there is no one access control method that achieves all security goals. Consequently, such a comparison would help decision-makers to choose properly the access controls that meet their requirements. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=access%20controls" title="access controls">access controls</a>, <a href="https://publications.waset.org/abstracts/search?q=cloud%20computing" title=" cloud computing"> cloud computing</a>, <a href="https://publications.waset.org/abstracts/search?q=confidentiality" title=" confidentiality"> confidentiality</a>, <a href="https://publications.waset.org/abstracts/search?q=identity%20and%20access%20management" title=" identity and access management"> identity and access management</a> </p> <a href="https://publications.waset.org/abstracts/125048/survey-of-access-controls-in-cloud-computing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/125048.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">131</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27485</span> Using IoT on Single Input Multiple Outputs (SIMO) DC–DC Converter to Control Smart-home</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Auwal%20Mustapha%20Imam">Auwal Mustapha Imam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the energy management system is to monitor and control utilization, access, optimize and manage energy availability. This can be realized through real-time analyses and energy sources and loads data control in a predictive way. Smart-home monitoring and control provide convenience and cost savings by controlling appliances, lights, thermostats and other loads. There may be different categories of loads in the various homes, and the homeowner may wish to control access to solar-generated energy to protect the storage from draining completely. Controlling the power system operation by managing the converter output power and controlling how it feeds the appliances will satisfy the residential load demand. The Internet of Things (IoT) provides an attractive technological platform to connect the two and make home automation and domestic energy utilization easier and more attractive. This paper presents the use of IoT-based control topology to monitor and control power distribution and consumption by DC loads connected to single-input multiple outputs (SIMO) DC-DC converter, thereby reducing leakages, enhancing performance and reducing human efforts. A SIMO converter was first developed and integrated with the IoT/Raspberry Pi control topology, which enables the user to monitor and control power scheduling and load forecasting via an Android app. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flyback" title="flyback">flyback</a>, <a href="https://publications.waset.org/abstracts/search?q=converter" title=" converter"> converter</a>, <a href="https://publications.waset.org/abstracts/search?q=DC-DC" title=" DC-DC"> DC-DC</a>, <a href="https://publications.waset.org/abstracts/search?q=photovoltaic" title=" photovoltaic"> photovoltaic</a>, <a href="https://publications.waset.org/abstracts/search?q=SIMO" title=" SIMO"> SIMO</a> </p> <a href="https://publications.waset.org/abstracts/185353/using-iot-on-single-input-multiple-outputs-simo-dc-dc-converter-to-control-smart-home" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185353.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">49</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27484</span> A Robust Implementation of a Building Resources Access Rights Management System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eugen%20Neagoe">Eugen Neagoe</a>, <a href="https://publications.waset.org/abstracts/search?q=Victor%20Balanica"> Victor Balanica</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A Smart Building Controller (SBC) is a server software that offers secured access to a pool of building specific resources, executes monitoring tasks and performs automatic administration of a building, thus optimizing the exploitation cost and maximizing comfort. This paper brings to discussion the issues that arise with the secure exploitation of the SBC administered resources and proposes a technical solution to implement a robust secure access system based on roles, individual rights and privileges (special rights). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=smart%20building%20controller" title="smart building controller">smart building controller</a>, <a href="https://publications.waset.org/abstracts/search?q=software%20security" title=" software security"> software security</a>, <a href="https://publications.waset.org/abstracts/search?q=access%20rights" title=" access rights"> access rights</a>, <a href="https://publications.waset.org/abstracts/search?q=access%20authorization" title=" access authorization"> access authorization</a> </p> <a href="https://publications.waset.org/abstracts/25907/a-robust-implementation-of-a-building-resources-access-rights-management-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25907.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">440</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27483</span> Channels Splitting Strategy for Optical Local Area Networks of Passive Star Topology</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Peristera%20Baziana">Peristera Baziana</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present a network configuration for a WDM LANs of passive star topology that assume that the set of data WDM channels is split into two separate sets of channels, with different access rights over them. Especially, a synchronous transmission WDMA access algorithm is adopted in order to increase the probability of successful transmission over the data channels and consequently to reduce the probability of data packets transmission cancellation in order to avoid the data channels collisions. Thus, a control pre-transmission access scheme is followed over a separate control channel. An analytical Markovian model is studied and the average throughput is mathematically derived. The performance is studied for several numbers of data channels and various values of control phase duration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=access%20algorithm" title="access algorithm">access algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=channels%20division" title=" channels division"> channels division</a>, <a href="https://publications.waset.org/abstracts/search?q=collisions%20avoidance" title=" collisions avoidance"> collisions avoidance</a>, <a href="https://publications.waset.org/abstracts/search?q=wavelength%20division%20multiplexing" title=" wavelength division multiplexing"> wavelength division multiplexing</a> </p> <a href="https://publications.waset.org/abstracts/63025/channels-splitting-strategy-for-optical-local-area-networks-of-passive-star-topology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63025.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">296</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27482</span> Enhance Security in XML Databases: XLog File for Severity-Aware Trust-Based Access Control</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A%3A%20Asmawi">A: Asmawi</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20S.%20Affendey"> L. S. Affendey</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20I.%20Udzir"> N. I. Udzir</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Mahmod"> R. Mahmod</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The topic of enhancing security in XML databases is important as it includes protecting sensitive data and providing a secure environment to users. In order to improve security and provide dynamic access control for XML databases, we presented XLog file to calculate user trust values by recording users’ bad transaction, errors and query severities. Severity-aware trust-based access control for XML databases manages the access policy depending on users' trust values and prevents unauthorized processes, malicious transactions and insider threats. Privileges are automatically modified and adjusted over time depending on user behaviour and query severity. Logging in database is an important process and is used for recovery and security purposes. In this paper, the Xlog file is presented as a dynamic and temporary log file for XML databases to enhance the level of security. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=XML%20database" title="XML database">XML database</a>, <a href="https://publications.waset.org/abstracts/search?q=trust-based%20access%20control" title=" trust-based access control"> trust-based access control</a>, <a href="https://publications.waset.org/abstracts/search?q=severity-aware" title=" severity-aware"> severity-aware</a>, <a href="https://publications.waset.org/abstracts/search?q=trust%20values" title=" trust values"> trust values</a>, <a href="https://publications.waset.org/abstracts/search?q=log%20file" title=" log file"> log file</a> </p> <a href="https://publications.waset.org/abstracts/11637/enhance-security-in-xml-databases-xlog-file-for-severity-aware-trust-based-access-control" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11637.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">300</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27481</span> The Role of Access Control Techniques in Creating a Safe Cyberspace for Children</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sara%20Muslat%20Alsahali">Sara Muslat Alsahali</a>, <a href="https://publications.waset.org/abstracts/search?q=Nout%20Mohammed%20Alqahtani"> Nout Mohammed Alqahtani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Digital technology has changed the world, and with the increasing number of children accessing the Internet, it has now become an integral part of children's lives from their early years. With the rapid development of digital technology, the risks children face on the internet also evolve from cyberbullying to misuse, sexual exploitation, and abuse of their private information over the Internet. Digital technology, with its advantages and disadvantages, is now a fact of our life. Therefore, knowledge of how to reduce its risks and maximize its benefits will help shape the growth and future of a new generation of digital citizens. This paper will discuss access control techniques that help to create secure cyberspace where children can be safe without depriving them of their rights and freedom to use the internet and preventing them from its benefits. Also, it sheds light on its challenges and problems by classifying the methods of parental controlling into two possibilities asynchronous and synchronous techniques and choosing YouTube as a case study of access control techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=access%20control" title="access control">access control</a>, <a href="https://publications.waset.org/abstracts/search?q=cyber%20security" title=" cyber security"> cyber security</a>, <a href="https://publications.waset.org/abstracts/search?q=kids" title=" kids"> kids</a>, <a href="https://publications.waset.org/abstracts/search?q=parental%20monitoring" title=" parental monitoring"> parental monitoring</a> </p> <a href="https://publications.waset.org/abstracts/125012/the-role-of-access-control-techniques-in-creating-a-safe-cyberspace-for-children" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/125012.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">137</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27480</span> Control Configuration System as a Key Element in Distributed Control System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Goodarz%20Sabetian">Goodarz Sabetian</a>, <a href="https://publications.waset.org/abstracts/search?q=Sajjad%20Moshfe"> Sajjad Moshfe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Control system for hi-tech industries could be realized generally and deeply by a special document. Vast heavy industries such as power plants with a large number of I/O signals are controlled by a distributed control system (DCS). This system comprises of so many parts from field level to high control level, and junior instrument engineers may be confused by this enormous information. The key document which can solve this problem is “control configuration system diagram” for each type of DCS. This is a road map that covers all of activities respect to control system in each industrial plant and inevitable to be studied by whom corresponded. It plays an important role from designing control system start point until the end; deliver the system to operate. This should be inserted in bid documents, contracts, purchasing specification and used in different periods of project EPC (engineering, procurement, and construction). Separate parts of DCS are categorized here in order of importance and a brief description and some practical plan is offered. This article could be useful for all instrument and control engineers who worked is EPC projects. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=control" title="control">control</a>, <a href="https://publications.waset.org/abstracts/search?q=configuration" title=" configuration"> configuration</a>, <a href="https://publications.waset.org/abstracts/search?q=DCS" title=" DCS"> DCS</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20plant" title=" power plant"> power plant</a>, <a href="https://publications.waset.org/abstracts/search?q=bus" title=" bus"> bus</a> </p> <a href="https://publications.waset.org/abstracts/31669/control-configuration-system-as-a-key-element-in-distributed-control-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31669.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">491</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27479</span> Analysis of Cascade Control Structure in Train Dynamic Braking System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20Moaveni">B. Moaveni</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Morovati"> S. Morovati</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent years, increasing the usage of railway transportations especially in developing countries caused more attention to control systems railway vehicles. Consequently, designing and implementing the modern control systems to improve the operating performance of trains and locomotives become one of the main concerns of researches. Dynamic braking systems is an important safety system which controls the amount of braking torque generated by traction motors, to keep the adhesion coefficient between the wheel-sets and rail road in optimum bound. Adhesion force has an important role to control the braking distance and prevent the wheels from slipping during the braking process. Cascade control structure is one of the best control methods for the wide range of industrial plants in the presence of disturbances and errors. This paper presents cascade control structure based on two forward simple controllers with two feedback loops to control the slip ratio and braking torque. In this structure, the inner loop controls the angular velocity and the outer loop control the longitudinal velocity of the locomotive that its dynamic is slower than the dynamic of angular velocity. This control structure by controlling the torque of DC traction motors, tries to track the desired velocity profile to access the predefined braking distance and to control the slip ratio. Simulation results are employed to show the effectiveness of the introduced methodology in dynamic braking system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cascade%20control" title="cascade control">cascade control</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamic%20braking%20system" title=" dynamic braking system"> dynamic braking system</a>, <a href="https://publications.waset.org/abstracts/search?q=DC%20traction%20motors" title=" DC traction motors"> DC traction motors</a>, <a href="https://publications.waset.org/abstracts/search?q=slip%20control" title=" slip control"> slip control</a> </p> <a href="https://publications.waset.org/abstracts/45361/analysis-of-cascade-control-structure-in-train-dynamic-braking-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45361.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">365</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27478</span> Supply Air Pressure Control of HVAC System Using MPC Controller</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=P.%20Javid">P. Javid</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Aeenmehr"> A. Aeenmehr</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Taghavifar"> J. Taghavifar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, supply air pressure of HVAC system has been modeled with second-order transfer function plus dead-time. In HVAC system, the desired input has step changes, and the output of proposed control system should be able to follow the input reference, so the idea of using model based predictive control is proceeded and designed in this paper. The closed loop control system is implemented in MATLAB software and the simulation results are provided. The simulation results show that the model based predictive control is able to control the plant properly. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air%20conditioning%20system" title="air conditioning system">air conditioning system</a>, <a href="https://publications.waset.org/abstracts/search?q=GPC" title=" GPC"> GPC</a>, <a href="https://publications.waset.org/abstracts/search?q=dead%20time" title=" dead time"> dead time</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20supply%20control" title=" air supply control"> air supply control</a> </p> <a href="https://publications.waset.org/abstracts/4103/supply-air-pressure-control-of-hvac-system-using-mpc-controller" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4103.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">527</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27477</span> A Wireless Feedback Control System as a Base of Bio-Inspired Structure System to Mitigate Vibration in Structures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gwanghee%20Heo">Gwanghee Heo</a>, <a href="https://publications.waset.org/abstracts/search?q=Geonhyeok%20Bang"> Geonhyeok Bang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chunggil%20Kim"> Chunggil Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Chinok%20Lee"> Chinok Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper attempts to develop a wireless feedback control system as a primary step eventually toward a bio-inspired structure system where inanimate structure behaves like a life form autonomously. It is a standalone wireless control system which is supposed to measure externally caused structural responses, analyze structural state from acquired data, and take its own action on the basis of the analysis with an embedded logic. For an experimental examination of its effectiveness, we applied it on a model of two-span bridge and performed a wireless control test. Experimental tests have been conducted for comparison on both the wireless and the wired system under the conditions of Un-control, Passive-off, Passive-on, and Lyapunov control algorithm. By proving the congruence of the test result of the wireless feedback control system with the wired control system, its control performance was proven to be effective. Besides, it was found to be economical in energy consumption and also autonomous by means of a command algorithm embedded into it, which proves its basic capacity as a bio-inspired system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=structural%20vibration%20control" title="structural vibration control">structural vibration control</a>, <a href="https://publications.waset.org/abstracts/search?q=wireless%20system" title=" wireless system"> wireless system</a>, <a href="https://publications.waset.org/abstracts/search?q=MR%20damper" title=" MR damper"> MR damper</a>, <a href="https://publications.waset.org/abstracts/search?q=feedback%20control" title=" feedback control"> feedback control</a>, <a href="https://publications.waset.org/abstracts/search?q=embedded%20system" title=" embedded system"> embedded system</a> </p> <a href="https://publications.waset.org/abstracts/93059/a-wireless-feedback-control-system-as-a-base-of-bio-inspired-structure-system-to-mitigate-vibration-in-structures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93059.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">211</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27476</span> Client Hacked Server</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bagul%20Abhijeet">Bagul Abhijeet</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Client-Server model is the backbone of today’s internet communication. In which normal user can not have control over particular website or server? By using the same processing model one can have unauthorized access to particular server. In this paper, we discussed about application scenario of hacking for simple website or server consist of unauthorized way to access the server database. This application emerges to autonomously take direct access of simple website or server and retrieve all essential information maintain by administrator. In this system, IP address of server given as input to retrieve user-id and password of server. This leads to breaking administrative security of server and acquires the control of server database. Whereas virus helps to escape from server security by crashing the whole server. Objective: To control malicious attack and preventing all government website, and also find out illegal work to do hackers activity. Results: After implementing different hacking as well as non-hacking techniques, this system hacks simple web sites with normal security credentials. It provides access to server database and allow attacker to perform database operations from client machine. Above Figure shows the experimental result of this application upon different servers and provides satisfactory results as required. Conclusion: In this paper, we have presented a to view to hack the server which include some hacking as well as non-hacking methods. These algorithms and methods provide efficient way to hack server database. By breaking the network security allow to introduce new and better security framework. The terms “Hacking” not only consider for its illegal activities but also it should be use for strengthen our global network. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hacking" title="Hacking">Hacking</a>, <a href="https://publications.waset.org/abstracts/search?q=Vulnerabilities" title=" Vulnerabilities"> Vulnerabilities</a>, <a href="https://publications.waset.org/abstracts/search?q=Dummy%20request" title=" Dummy request"> Dummy request</a>, <a href="https://publications.waset.org/abstracts/search?q=Virus" title=" Virus"> Virus</a>, <a href="https://publications.waset.org/abstracts/search?q=Server%20monitoring" title=" Server monitoring"> Server monitoring</a> </p> <a href="https://publications.waset.org/abstracts/36777/client-hacked-server" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36777.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">251</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27475</span> Green Design Study of Prefabricated Community Control Measures in Response to Public Health Emergencies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Enjia%20Zhang">Enjia Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> During the prevention and control of the COVID-19 pandemic, all communities in China were gated and under strict management, which was highly effective in preventing the spread of the epidemic from spreading. Based on the TRIZ theory, this paper intends to propose green design strategies of community control in response to public health emergencies and to optimize community control facilities according to the principle of minimum transformation. Through the questionnaire method, this paper investigates and summarizes the situation and problems of community control during the COVID-19 pandemic. Based on these problems, the TRIZ theory is introduced to figure out the problems and associates them with prefabricated facilities. Afterward, the innovation points and solutions of prefabricated community control measures are proposed by using the contradiction matrix. This paper summarizes the current situation of community control under public health emergencies and concludes the problems such as simple forms of temporary roadblocks, sudden increase of community traffic pressure, and difficulties to access public spaces. The importance of entrance and exit control in community control is emphasized. Therefore, the community control measures are supposed to focus on traffic control, and the external access control measures, including motor vehicles, non-motor vehicles, residents and non-residents access control, and internal public space access control measures, including public space control shared with the society or adjacent communities, are proposed in order to make the community keep the open characteristics and have the flexibility to deal with sudden public health emergencies in the future. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=green%20design" title="green design">green design</a>, <a href="https://publications.waset.org/abstracts/search?q=community%20control" title=" community control"> community control</a>, <a href="https://publications.waset.org/abstracts/search?q=prefabricated%20structure" title=" prefabricated structure"> prefabricated structure</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20health%20emergency" title=" public health emergency"> public health emergency</a> </p> <a href="https://publications.waset.org/abstracts/130026/green-design-study-of-prefabricated-community-control-measures-in-response-to-public-health-emergencies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/130026.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">129</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27474</span> Design and Implementation of a Memory Safety Isolation Method Based on the Xen Cloud Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dengpan%20Wu">Dengpan Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Dan%20Liu"> Dan Liu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In view of the present cloud security problem has increasingly become one of the major obstacles hindering the development of the cloud computing, put forward a kind of memory based on Xen cloud environment security isolation technology implementation. And based on Xen virtual machine monitor system, analysis of the model of memory virtualization is implemented, using Xen memory virtualization system mechanism of super calls and grant table, based on the virtual machine manager internal implementation of access control module (ACM) to design the security isolation system memory. Experiments show that, the system can effectively isolate different customer domain OS between illegal access to memory data. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cloud%20security" title="cloud security">cloud security</a>, <a href="https://publications.waset.org/abstracts/search?q=memory%20isolation" title=" memory isolation"> memory isolation</a>, <a href="https://publications.waset.org/abstracts/search?q=xen" title=" xen"> xen</a>, <a href="https://publications.waset.org/abstracts/search?q=virtual%20machine" title=" virtual machine"> virtual machine</a> </p> <a href="https://publications.waset.org/abstracts/22897/design-and-implementation-of-a-memory-safety-isolation-method-based-on-the-xen-cloud-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22897.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">409</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27473</span> Competitiveness and Pricing Policy Assessment for Resilience Surface Access System at Airports</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dimitrios%20J.%20Dimitriou">Dimitrios J. Dimitriou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Considering a worldwide tendency, air transports are growing very fast and many changes have taken place in planning, management and decision making process. Given the complexity of airport operation, the best use of existing capacity is the key driver of efficiency and productivity. This paper deals with the evaluation framework for the ground access at airports, by using a set of mode choice indicators providing key messages towards airport’s ground access performance. The application presents results for a sample of 12 European airports, illustrating recommendations to define policy and improve service for the air transport access chain. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=airport%20ground%20access" title="airport ground access">airport ground access</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20transport%20chain" title=" air transport chain"> air transport chain</a>, <a href="https://publications.waset.org/abstracts/search?q=airport%20access%20performance" title=" airport access performance"> airport access performance</a>, <a href="https://publications.waset.org/abstracts/search?q=airport%20policy" title=" airport policy"> airport policy</a> </p> <a href="https://publications.waset.org/abstracts/56760/competitiveness-and-pricing-policy-assessment-for-resilience-surface-access-system-at-airports" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56760.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">371</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27472</span> The Control System Architecture of Space Environment Simulator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zhan%20Haiyang">Zhan Haiyang</a>, <a href="https://publications.waset.org/abstracts/search?q=Gu%20Miao"> Gu Miao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article mainly introduces the control system architecture of space environment simulator, simultaneously also briefly introduce the automation control technology of industrial process and the measurement technology of vacuum and cold black environment. According to the volume of chamber, the space environment simulator is divided into three types of small, medium and large. According to the classification and application of space environment simulator, the control system is divided into the control system of small, medium, large space environment simulator and the centralized control system of multiple space environment simulators. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=space%20environment%20simulator" title="space environment simulator">space environment simulator</a>, <a href="https://publications.waset.org/abstracts/search?q=control%20system" title=" control system"> control system</a>, <a href="https://publications.waset.org/abstracts/search?q=architecture" title=" architecture"> architecture</a>, <a href="https://publications.waset.org/abstracts/search?q=automation%20control%20technology" title=" automation control technology"> automation control technology</a> </p> <a href="https://publications.waset.org/abstracts/2428/the-control-system-architecture-of-space-environment-simulator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2428.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">475</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27471</span> A Sliding Model Control for a Hybrid Hyperbolic Dynamic System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xuezhang%20Hou">Xuezhang Hou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present paper, a hybrid hyperbolic dynamic system formulated by partial differential equations with initial and boundary conditions is considered. First, the system is transformed to an abstract evolution system in an appropriate Hilbert space, and spectral analysis and semigroup generation of the system operator is discussed. Subsequently, a sliding model control problem is proposed and investigated, and an equivalent control method is introduced and applied to the system. Finally, a significant result that the state of the system can be approximated by an ideal sliding mode under control in any accuracy is derived and examined. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hyperbolic%20dynamic%20system" title="hyperbolic dynamic system">hyperbolic dynamic system</a>, <a href="https://publications.waset.org/abstracts/search?q=sliding%20model%20control" title=" sliding model control"> sliding model control</a>, <a href="https://publications.waset.org/abstracts/search?q=semigroup%20of%20linear%20operators" title=" semigroup of linear operators"> semigroup of linear operators</a>, <a href="https://publications.waset.org/abstracts/search?q=partial%20differential%20equations" title=" partial differential equations"> partial differential equations</a> </p> <a href="https://publications.waset.org/abstracts/148599/a-sliding-model-control-for-a-hybrid-hyperbolic-dynamic-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148599.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">136</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27470</span> Central African Republic Government Recruitment Agency Based on Identity Management and Public Key Encryption</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Koyangbo%20Guere%20Monguia%20Michel%20Alex%20Emmanuel">Koyangbo Guere Monguia Michel Alex Emmanuel </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In e-government and especially recruitment, many researches have been conducted to build a trustworthy and reliable online or application system capable to process users or job applicant files. In this research (Government Recruitment Agency), cloud computing, identity management and public key encryption have been used to management domains, access control authorization mechanism and to secure data exchange between entities for reliable procedure of processing files. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cloud%20computing%20network" title="cloud computing network">cloud computing network</a>, <a href="https://publications.waset.org/abstracts/search?q=identity%20management%20systems" title=" identity management systems"> identity management systems</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20key%20encryption" title=" public key encryption"> public key encryption</a>, <a href="https://publications.waset.org/abstracts/search?q=access%20control%20and%20authorization" title=" access control and authorization"> access control and authorization</a> </p> <a href="https://publications.waset.org/abstracts/50648/central-african-republic-government-recruitment-agency-based-on-identity-management-and-public-key-encryption" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50648.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">358</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27469</span> Performance Analysis of Multichannel OCDMA-FSO Network under Different Pervasive Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saru%20Arora">Saru Arora</a>, <a href="https://publications.waset.org/abstracts/search?q=Anurag%20Sharma"> Anurag Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=Harsukhpreet%20Singh"> Harsukhpreet Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> To meet the growing need of high data rate and bandwidth, various efforts has been made nowadays for the efficient communication systems. Optical Code Division Multiple Access over Free space optics communication system seems an effective role for providing transmission at high data rate with low bit error rate and low amount of multiple access interference. This paper demonstrates the OCDMA over FSO communication system up to the range of 7000 m at a data rate of 5 Gbps. Initially, the 8 user OCDMA-FSO system is simulated and pseudo orthogonal codes are used for encoding. Also, the simulative analysis of various performance parameters like power and core effective area that are having an effect on the Bit error rate (BER) of the system is carried out. The simulative analysis reveals that the length of the transmission is limited by the multi-access interference (MAI) effect which arises when the number of users increases in the system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=FSO" title="FSO">FSO</a>, <a href="https://publications.waset.org/abstracts/search?q=PSO" title=" PSO"> PSO</a>, <a href="https://publications.waset.org/abstracts/search?q=bit%20error%20rate%20%28BER%29" title=" bit error rate (BER)"> bit error rate (BER)</a>, <a href="https://publications.waset.org/abstracts/search?q=opti%20system%20simulation" title=" opti system simulation"> opti system simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20access%20interference%20%28MAI%29" title=" multiple access interference (MAI)"> multiple access interference (MAI)</a>, <a href="https://publications.waset.org/abstracts/search?q=q-factor" title=" q-factor"> q-factor</a> </p> <a href="https://publications.waset.org/abstracts/48171/performance-analysis-of-multichannel-ocdma-fso-network-under-different-pervasive-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48171.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">365</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=system%20access%20control&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=system%20access%20control&page=3">3</a></li> <li class="page-item"><a class="page-link" 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