This paper presents a blockchain-based platform for managing and issuing academic certificates that features security, transparency, non-repudiation and traceability. Relying on the security provided by Ethereum block...
详细信息
ISBN:
(数字)9798350364293
ISBN:
(纸本)9798350364309
This paper presents a blockchain-based platform for managing and issuing academic certificates that features security, transparency, non-repudiation and traceability. Relying on the security provided by Ethereum blockchain and using asymmetrical cryptography in certificate generation, combined with certificate revocation mechanisms, the proposed platform offers a reliable, decentralized and secure solution that can be used by academic institutions to streamline the management of academic certificates and reduce bureaucracy.
This paper presents the design and practical implementation of a gateway interface between two networks, CAN and Ethernet. Data packets detected over a network will be routed to the other network, with the possibility...
详细信息
This paper presents the design and practical implementation of a gateway interface between two networks, CAN and Ethernet. Data packets detected over a network will be routed to the other network, with the possibility of using various filters. Since there is no standard yet for this purpose, the paper also proposes a method to pack one or more CAN messages in an Ethernet frame. For testing purposes of the interface gateway and its implementation a series of graphical software tools running on a PC client have been developed. These tools are able to send and decode messages using the specified packaging. At the end of the paper a graphical application demonstrates the functionality of the gateway implementation and the benefits of the proposed CAN-Ethernet routing method.
This paper presents an algorithmic approach for segmenting news broadcasts produced by television stations. The proposed approach uses advanced signal processing techniques to extract and classify audio segments from ...
详细信息
ISBN:
(数字)9798350364293
ISBN:
(纸本)9798350364309
This paper presents an algorithmic approach for segmenting news broadcasts produced by television stations. The proposed approach uses advanced signal processing techniques to extract and classify audio segments from Romanian TV news broadcasts. By using derivative of 1-dimensional Gaussian filter and binary classification models, this paper aims to automatically identify and classify news segments into categories such as studio news, field news, commercials and music breaks. The primary objective of this paper is to develop a segmentation methodology optimized for reduced computational memory and quick processing. By leveraging efficient computational techniques, the news segmentation can be performed in a timely manner without compromising accuracy. This optimization is crucial for real-time or near-real-time applications within TV networks, facilitating tasks such as content monitoring and analysis.
This paper proposes a RISC-V extension, named SigWavy, meant to optimize the PWM control for general purpose or application specific designs. The RISC-V extension named above is a PWM control Unit with a dedicated ISA...
This paper proposes a RISC-V extension, named SigWavy, meant to optimize the PWM control for general purpose or application specific designs. The RISC-V extension named above is a PWM control Unit with a dedicated ISA extension set designed for configuring and driving up to 32 PWM signals. The extension is integrated into RiscPwm, an updated version of our previous work, the RisCanFd SoC, for taking advantage of CAN-FD, a massively used protocol in the areas of automation and mobility. Being configured with the dedicated ISA extension or with parameters directly extracted from CAN-FD commands, the proposed solution manages to configure/reconfigure PWM channels between 4.79x and 9.18x times faster than an ARM Cortex-M7 processor, although our SoC operates with a 6x lower frequency.
The paper deals with the PI and PID controllers settings. The research includes an overview of the most commonly used control quality criteria. It was assumed that the controlled system can be approximated by first or...
详细信息
ISBN:
(纸本)9781509064076
The paper deals with the PI and PID controllers settings. The research includes an overview of the most commonly used control quality criteria. It was assumed that the controlled system can be approximated by first order inertia with dead time. The control systems that includes the model as well as the PI and PID controllers were analyzed in context of control quality taking into account ITAE criterion. The research involved an analysis of the Nyquist diagrams. It enabled us to formulate a new method of tuning of PI and PID controllers. The results obtained with the proposed method were compared to the settings obtained with Ziegler-Nichols method. To illustrate the advantages of the proposed method the system step responses as well as their time and frequency indexes were compared and presented. The proposed method of the PI and PID controller tuning makes it possible to obtain a significant increase of the control quality.
A correct diagnostics together with the early prediction of failure or malfunction of the system are the major issues in modern maintenance. Nowadays, the time-honored diagnostics may be inadequate and lead to omittin...
详细信息
A correct diagnostics together with the early prediction of failure or malfunction of the system are the major issues in modern maintenance. Nowadays, the time-honored diagnostics may be inadequate and lead to omitting failures, resulting in higher costs of repairing damaged equipment. That is why the interest in intelligent diagnostics increases due to the possibility of better interpretation of the component status and early failure prediction. One of the ways of determining the device condition is to measure and analyze the temperature of multiple points on the device. Thermographics may show a beginning of significant wear of a component, and enable a repair or replacing before the failure appears. The paper presents the key aspects of the diagnostics with thermal images, including: technology mapping, mapping algorithms, together with a presentation of available software solutions.
Enterprise control applications are becoming more and more complex, exploiting distributed object technology in multi-tier architectures. For educational purposes, the development of a manufacturing control laboratory...
详细信息
Enterprise control applications are becoming more and more complex, exploiting distributed object technology in multi-tier architectures. For educational purposes, the development of a manufacturing control laboratory that may emphasize the new control techniques and the overall integration of the system activities is a complex and challenging task. In the paper, an enterprise application solution that integrates the ERP concept in three-tier architecture with a Flexible Manufacturing System is presented. It contains modularized, distributed subsystems in configurable and maintainable software. Starting from the customer order, to planned order dispatch, the ERP main components and the information flow within the system is presented. The software architecture contains the ERP components that are implemented using Enterprise Java Beans, deployed in a J2EE application server. It enables transactions with the business environment, shop-floor system and the database. The application is conceptually designed and analyzed using a visual model developed in Unified Modelling Language.
A new cantilever-beam nonlinear electromagnetic vibration energy harvester with noticeable effects of complex motion composed of relative displacement and torsion of the vibrating element is considered. The analysis o...
详细信息
Seamless simulation and rendering of realistic natural environments has the goals of modeling the terrain and placing large groups of plants in a manner that would generate a scene similar to what a viewer would see i...
详细信息
Seamless simulation and rendering of realistic natural environments has the goals of modeling the terrain and placing large groups of plants in a manner that would generate a scene similar to what a viewer would see in real life. The placement of plants is derived automatically from real land cover classification (LCC) data which describes each area on the map as a single vegetation type. This work presents a method for solving the problem of plant distribution in transition areas between different vegetation classes by using the concept of linear diffusion in an arbitrary direction. In practice this direction can be determined by different climatic factors. Our proposed implementation can accurately process a high number of neighboring areas in real-time by using parallel processing on the graphics processing unit.
Evolutionary Algorithms are representative as a research field in continuous development and a permanent source of new ideas. In order to minimize a function, some algorithms such as Genetic Algorithms, the Imperialis...
详细信息
Evolutionary Algorithms are representative as a research field in continuous development and a permanent source of new ideas. In order to minimize a function, some algorithms such as Genetic Algorithms, the Imperialist Competitive Algorithm and Evolutionary Hybrid Algorithms were investigated in this paper. Also, in order to accelerate the search of an optimal solution a new hybrid algorithm based on the Imperialist Competitive Algorithm is proposed. The tests showed that the proposed algorithm tends to reach an optimal solution faster than other algorithms.
暂无评论