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The Department of Robotics has been in a long-term research of additive technology from the point of view of printing final products. This relates to the issue of mechanical properties of the used materials. Detailed knowledge in the design phase of material properties and structure of parts produced by the Rapid Prototyping Technology (hereinafter as RP) contribute to correct application of such...
This paper deals with photovoltaic converter not including maximum power point tracking (MPPT), but precise active power tracking (PAPT) operational mode. There is considered control deployment for boost converter (four-phase interleaved), as an essential part of common two-stage grid-connected photovoltaic system. The control code is developed and tested by means of MATLAB autocoding generation and...
To achieve social, economic and environmental sustainability and to remain competitive, manufactuiing companies are shifting their focus from classical manufacturing to additive manufacturing (AM). This additive manufacturing way of making parts is also called rapid prototyping or rapid manufacturing. AM innovation is predicted to be an important part of future manufacturing as complicated part geometry...
For biomedical devices, cardiovascular stents in particular, the employed material plays a crucial role in controlling the mechanical and biological behavior. However, the material properties are directly influenced by the production route and the stent geometry. Conventional stent manufacturing route consists of laser microcutting of microtubes. Microtube extrusion and drawing are both costly and...
Computer Aided Drafting (CAD) is pervasive in engineering fields today. It has become indispensable for planning, creating, visualizing, troubleshooting, collaborating, and communicating designs before they exist in physical form. From the beginning, CAD was created to be used by means of a mouse, keyboard, and monitor. Along the way, other, more specialized interface devices were created specifically...
Histotripsy uses high-pressure, microsecond-length pulses to generate cavitation microbubbles to fractionate targeted tissue. After the collapse of a cavitation cloud, remnant microbubbles can persist for a second or longer before passively dissolving. These bubbles can act as seed nuclei for subsequent cavitation events reducing treatment efficiency because the nuclei are not well distributed through...
This work investigates the properties of conductive circuits inkjet-printed onto the polycarbonate discs used in CD-based centrifugal microfluidics, contributing towards rapidly prototyped electronic systems in smart ubiquitous biosensors, which require sensitive and robust signal readout at low power and cost, and with wireless connectivity. A protocol for inkjet-printing electronic networks on CD...
This paper addresses the problem of rapid development of real-time controllers for Dynamic Voltage Restorer (DVR). A DVR includes an active rectifier and an inverter, which share the common DC link. The DVR controller has to include both the rectifier and the inverter control parts, and to guarantee the correct cooperation of the components. This causes the control algorithms to be complex. The paper...
Advances in real-time hardware in the loop (HIL) boards and software has provided an excellent opportunity to implement and test control algorithms rapidly on real systems [1-7]. Hardware in the loop development allows for rapid development, testing and verification of control systems. This paper, using a servo system as an example, clearly explores modern control systems design cycle, which includes...
Efficient micromixing is required for fast reaction and improved mixing performance for DNA extraction in microfluidic devices. This study outlines a simple, low cost approach for prototyping design and fabrication of PDMS microfluidics micromixers for DNA extraction. The design is plotted using AutoCAD software and the master template is fabricated using a negative photoresist, SU-8, on a microscopic...
Orthogonal frequency division multiplexing (OFDM) based on the use of discrete fractional Fourier transform (DFrFT) has recently gained interest due to its lower sensitivity to synchronization errors in comparison with conventional OFDM based on the use of the discrete Fourier transform (DFT). Although this higher robustness to synchronization errors is a well-recognized fact, only few works are available...
Increased competition and customer' expectations forces industries (1st) to react more quickly and agile to marked trends, (2nd) to shorten their product release cycles, and (3rd) to create innovative and intelligent products able to self-adapt to their owners' or licensee' requirements depending on the current context. This paper presents (1st) an overview of a novel ICT engineering platform for...
Low cost electronic platforms based on Atmel microcontroller, as Arduino platform, are used in many applications and in several fields. Indeed, their characteristics in terms of inputs, outputs, CPU and RAM make possible to develop rapid smart-systems for measurement avoiding additional components. CPU and RAM performance allows analyzing complex numerical signals. The aim of this paper is to show...
With the ever increasing trend of cramming more transistors on the silicon and the consequential increase in the thermal design power, combined with stacked die and multiple die configurations inside the package footprint, optimized coolant chambers becomes an imperative design need to remove heat efficiently from the silicon. Liquid cooling is investigated to efficiently meet the challenges of high...
We demonstrate IFMLEdit.org, an online tool for the rapid prototyping of web and mobile applications.IFMLEdit.org is based on the Interaction Flow Modeling Language (IFML), an OMG standard for the description of the interaction between users and applications by means of flows of information in reaction to user events. In the demo, attendees will be able to edit IFML specifications with IFMLEdit.org,...
Field Programmable Gate Arrays (FPGA) are becoming increasingly important in many digital systems due to their high performance and flexibility. The efficient utilization of programmable logic is still complex and requires in-depth knowledge. Therefore, understanding the basic principles of such devices and hardware description languages is of vital importance not only for students of electrical engineering...
The aim of this paper is to describe rapid design and realization of a embedded controllers by using MATLAB toolboxes like Simulink Coder. The Simulink Coder generates and executes C and C++ code from Simulink diagrams, Stateflow charts, and MATLAB functions. An automatic code generation enables implementation of Simulink controller models directly to the PLC without manual coding. The generated source...
Optimizing Hadoop executions has attracted a lot of research contributions in particular in the domain of self-adaptive software systems. However, these research efforts are often hindered by the complexity of Hadoop operation and the difficulty to reproduce experimental evaluations that makes it hard to compare different approaches to one another. To address this limitation, we propose a research...
We present a hydrophobic device with a hexagonal beehive micro structure for the ship drag reduction and the surface self-cleaning functions. The device was fabricated by the micro-molding technique. Since the device material is nylon, and coated with parylene, the devices can be assembled into large surface area of different arcs. Thus the ship surfaces could be attached by those devices to reduce...
A de-cubing process are important in the Laminated Object Manufacturing (LOM) technique, creates a physical model directly from 3D CAD model without mold and dies by using laminated material. The de-cubing process is to assign shape of waste material into generally small square shape that can be easily remove in order to reduce time and avoid prototype damages. The adaptive de-cubing process applies...
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