1,590 research outputs found

    Smart cards: State-of-the-art to future directions

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    The evolution of smart card technology provides an interesting case study of the relationship and interactions between security and business requirements. This paper maps out the milestones for smart card technology, discussing at each step the opportunities and challenges. The paper reviews recently proposed innovative ownership/management models and the security challenges associated with them. The paper concludes with a discussion of possible future directions for the technology, and the challenges these present

    The role of the host in a cooperating mainframe and workstation environment, volumes 1 and 2

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    In recent years, advancements made in computer systems have prompted a move from centralized computing based on timesharing a large mainframe computer to distributed computing based on a connected set of engineering workstations. A major factor in this advancement is the increased performance and lower cost of engineering workstations. The shift to distributed computing from centralized computing has led to challenges associated with the residency of application programs within the system. In a combined system of multiple engineering workstations attached to a mainframe host, the question arises as to how does a system designer assign applications between the larger mainframe host and the smaller, yet powerful, workstation. The concepts related to real time data processing are analyzed and systems are displayed which use a host mainframe and a number of engineering workstations interconnected by a local area network. In most cases, distributed systems can be classified as having a single function or multiple functions and as executing programs in real time or nonreal time. In a system of multiple computers, the degree of autonomy of the computers is important; a system with one master control computer generally differs in reliability, performance, and complexity from a system in which all computers share the control. This research is concerned with generating general criteria principles for software residency decisions (host or workstation) for a diverse yet coupled group of users (the clustered workstations) which may need the use of a shared resource (the mainframe) to perform their functions

    Development and Evaluation of a High-Performance Electrochemical Potentiostat-Based Desktop Application for Rapid SARS-CoV-2 Testing

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    The COVID-19 pandemic has necessitated the development of rapid and trustworthy diagnostic tools. Reverse transcription-polymerase chain reaction (RT-PCR) is the gold standard for detecting SARS-CoV-2 but has cost and time constraints. The sensitivity, specificity, and low cost of electrochemical biosensors make them an attractive alternative for virus detection. This study aims to develop and evaluate a high-performance desktop application for an electrochemical potentiostat-based SARS-CoV-2 test device, with a user-friendly interface that automatically interprets results, to expedite the testing process and improve accessibility, particularly in resource-limited settings. The application was built with the Electron framework and the HTML, CSS, and JavaScript programming languages. Our findings indicate that the developed electrochemical potentiostat-based desktop application demonstrates high accuracy compared to commercial software, achieving rapid detection within 30 seconds. The graphical user interface was found to be straightforward and user-friendly, requiring minimal training for efficient system operation. Our electrochemical potentiostat-based desktop application represents a valuable tool for rapid SARS-CoV-2 testing, particularly in settings with limited resources. This research contributes to developing rapid and reliable diagnostic tools for SARS-CoV-2 and potentially other pandemic-causing viruses, addressing the pressing need for improved public health surveillance and response strategies

    Towards a new generation of transport services adapted to multimedia application

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    Une connexion d'ordre et de fiabilité partiels (POC, partial order connection) est une connexion de transport autorisée à perdre certains objets mais également à les délivrer dans un ordre éventuellement différent de celui d'émission. L'approche POC établit un lien conceptuel entre les protocoles sans connexion au mieux et les protocoles fiables avec connexion. Le concept de POC est motivé par le fait que dans les réseaux hétérogènes sans connexion tels qu'Internet, les paquets transmis sont susceptibles de se perdre et d'arriver en désordre, entraînant alors une réduction des performances des protocoles usuels. De plus, on montre qu'un protocole associé au transport d'un flux multimédia permet une réduction très sensible de l'utilisation des ressources de communication et de mémorisation ainsi qu'une diminution du temps de transit moyen. Dans cet article, une extension temporelle de POC, nommée TPOC (POC temporisé), est introduite. Elle constitue un cadre conceptuel permettant la prise en compte des exigences de qualité de service des applications multimédias réparties. Une architecture offrant un service TPOC est également introduite et évaluée dans le cadre du transport de vidéo MPEG. Il est ainsi démontré que les connexions POC comblent, non seulement le fossé conceptuel entre les protocoles sans connexion et avec connexion, mais aussi qu'ils surpassent les performances des ces derniers lorsque des données multimédias (telles que la vidéo MPEG) sont transportées

    User Experience Evaluation on Production Performance Monitoring System Using Honeycomb Method

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    In the era of digitalization in industries, companies are implementing the Digital Factory Operating System in various aspects, including monitoring production performance on the sachet line. Previously, operators manually carried out the production performance monitoring process using paper forms, and admins re-entered the data into the system. Although the monitoring process has begun to be carried out digitally using available tablets, its usage still needs improvement. Therefore, it is necessary to evaluate the user experience of the Production Performance Monitoring Information System to determine user satisfaction. The Honeycomb method is used in this study, which assesses seven aspects, namely accessible, credible, desirable, findable, usable, useful, and valuable. The results show the average final score of each aspect assessed, and the highest score of 66.45% is for the accessible and useful aspects. The study shows that the user experience evaluation of the Production Performance Monitoring Information System using the honeycomb method is generally good, but improvements are still needed in some aspects, such as accessibility and desirability

    Centralized Management IoT Platform

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    On information technology topics, the word “innovation” is increasingly present every day. Regarding the Internet of Things (IoT) subject, it’s no different. Every year new IoT products and services are created and presented that allow users to make their lives easier and simpler, connecting people to devices remotely and automatically, generating mobility and operability of services through the heterogeneity of devices connected to the internet. Based on obstacles found in daily homes, this paperwork aims study the development of a unique and easy use platform. On this platform, it is possible to have IoT devices centralized on the same local network unit so that they can be managed and manipulated through a simple and intuitive graphical interface. Thus, management is unified and practical for any type of user who is interested in using this technology. In this thesis, good practices and the best solutions researched within the practice of IoT management were studied in different scenarios. Covering types of technologies, proposed architectures, configuration processes and compatibility analysis of features and functionality of different devices currently on the market. Thus, this work aims to present in detail the study of the prototype of a unified platform that allows configuring, monitoring, and managing the integration between heterogeneous devices currently on the market for residential usersinfo:eu-repo/semantics/publishedVersio

    Avionics architecture studies for the entry research vehicle

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    This report is the culmination of a year-long investigation of the avionics architecture for NASA's Entry Research Vehicle (ERV). The Entry Research Vehicle is conceived to be an unmanned, autonomous spacecraft to be deployed from the Shuttle. It will perform various aerodynamic and propulsive maneuvers in orbit and land at Edwards AFB after a 5 to 10 hour mission. The design and analysis of the vehicle's avionics architecture are detailed here. The architecture consists of a central triply redundant ultra-reliable fault tolerant processor attached to three replicated and distributed MIL-STD-1553 buses for input and output. The reliability analysis is detailed here. The architecture was found to be sufficiently reliable for the ERV mission plan

    Applied WebQual 4.0 to Evaluate SMART System in RSAB Harapan Kita

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    Website hospital applications are one of the technological developments that affect service quality. Therefore it is necessary to evaluate the quality of the information system provided in the hospital. The method used is webqual 4.0 with usability, information quality, and service interaction quality. Data collection was carried out used a questionnaire given to 232 health workers at RSAB Harapan Kita who interacted with the SMART application. The analysis technique used is descriptive analysis technique with a quantitative approach and cross-sectional research design. The results of this study were 74.1% stated that the quality of the application was good and 25.9% said that the quality of the application was not good, as much as 43.5% stated that the quality was sufficient when viewed from the usability dimension, 40.9% in the information quality dimension, and 40. 1% for the service interaction quality dimension. The SMART application at RSAB Harapan Kita does not yet contain clear instructions or references, does not perfectly present relevant information, and the officer states that they do not feel safe about personal information on the SMART application

    Leveraging Virtualization for Performance Driven Development

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    This thesis contains the research component of a software engineering study to create a .NET application performance testing lab, and several guided learning activities intended to teach the fundamentals of how to use it. In arriving upon the research which serves as the groundwork for this project, an introduction to the concepts of software performance, the risks associated with performances, and an approach to mitigating this risks called performance driven development is presented. This introduction is expanded by an overview of how performance is affected from application, network, database and presentation aspects. To address problems associated with performance in .NET web applications, a virtual test lab has been created on the software engineering lab server at Regis University\u27s Academic Research Network (ARNe), and this paper documents the architecture of that test lab. In order to demonstrate how it can be used students, developers or others previously unfamiliar with performance testing, a series of presentations has been composed, and this paper represents the research conducted in composing them. This research includes a basic level understanding of Visual Studio Team System 2008\u27s test tools, and virtualization with VMWare

    Generation Z's Determinants for Using Online Food Delivery in Jakarta

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    One of the Indonesia's leading online food delivery services is Shopee Food. It has competed with other big players. This application has caught the attention of users, even those from the Z generation, who are known for their easy-to-move characteristics and are close to technological applications but sensitive to user experience. This generation's convenience is influenced by many factors. This study analyzes the factors that influence attitudes and behavior for sustainable use of this application in Jakarta. Quantitative data is collected using a survey and questionnaire. This PLS-SEM modeling study shows that after using the service in this application, the user's hedonic motivation must be followed by comfort and usability. The user will evaluate the post-use usefulness of the previous experience to form an attitude toward the next perceived experience. Behavioral intentions toward sustainable use are encouraged. This study highlights the importance of usability and ease of use in determining user comfort. Generation Z does not easily form positive usage attitudes until the benefits of the next experience are the same or better
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