This paper proposes an optimal design scheme for the motor controlsystem of FDM3D printers based on computer digital technology. Taking the Cortex-M4 microcontroller as the main research object, a computer simulation...
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In recent years, with the extensive application of deep learning methods, face recognition technology has been greatly developed. Aiming at the problem of video surveillance in power network, a video surveillance meth...
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For the trajectory tracking problem of a single-joint manipulator system with sensor faults. A fuzzy controlsystem incorporating command filtering and event-triggered technology is devised to enhance system tracking ...
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Marine ecotourism plays a vital role in the economic growth of peripheral coastal areas and islands. However, this growth presents challenges such as marine pollution, beach safety concerns, limited professional infor...
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High-quality ocean observation is essential for research and applications in ocean exploration and climate change. With moving into the era of big data in recent years, it becomes crucial to process these massive raw ...
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The paper aims to optimize the energy consumption of industrial robots, with the goal of reducing operational costs and improving the sustainability of the production process. The methods discussed include using energ...
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We present a scalable methodology for the agile physical design of tile-based heterogeneous system-on-chip (SoC) architectures that simplifies the reuse and integration of open-source hardware components. The methodol...
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ISBN:
(纸本)9781450392174
We present a scalable methodology for the agile physical design of tile-based heterogeneous system-on-chip (SoC) architectures that simplifies the reuse and integration of open-source hardware components. The methodology leverages the regularity of the on-chip communication infrastructure, which is based on a multi-plane network-on-chip (NoC), and the modularity of socket interfaces, which connect the tiles to the NoC. Each socket also provides its tile with a set of platform services, including independent clocking and voltage control. As a result, the physical design of each tile can be decoupled from its location in the top-level floorplan of the SoC and the overall SoC design can benefit from a hierarchical timing-closure flow, design reuse and, if necessary, fast respin. With the proposed methodology we completed two SoC tapeouts of increasing complexity, which illustrate its capabilities and the resulting gains in terms of design productivity.
Robotic assembly plays a significant role in industry and manufacturing. The coordination among control modules and robotic arms is of paramount significance in planning and design of automated systems. However, repet...
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With the rapid development of global population aging, the physical functions of the elderly are aging, and, in particular, the incidence of disease risk in bedridden elderly is much greater than that of other elderly...
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Coronary artery disease is a leading cause of death, with 17.8 million deaths globally. Intravascular ultrasound (IVUS) imaging is used to characterize coronary lesions and guide intervention in the cardiac catheteriz...
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ISBN:
(纸本)9798350371918;9798350371901
Coronary artery disease is a leading cause of death, with 17.8 million deaths globally. Intravascular ultrasound (IVUS) imaging is used to characterize coronary lesions and guide intervention in the cardiac catheterization lab. Separately, catheter-directed thrombolysis provides therapeutic ultrasound in an intravascular form factor to treat clots. In this paper, we propose to develop a flexible, multifunctional, FPGA-based pulser/receiver system for combined IVUS imaging and therapy. The novel system consists of a computer with a Matlab-based graphical user interface, an FPGA board and a custom proprietary board. An example therapy excitation is shown for a 1000-cycle, 550 kHz output waveform with an amplitude of 102 Vpp. This excitation was applied to a custom 3 mm therapy transducer, resulting in hydrophone-measured peak negative acoustic pressure of 305.28 kPa, a mechanical index of 0.41, (Ispta. 3) of 5.64 mW/cm(2) and I-sppa. 3 of 310.36 mW/cm(2). For imaging, the system can produce waveforms such as a 160 Vpp 1-cycle, 16.67 MHz sinusoidal pulse with a -6 dB bandwidth of 21 MHz. Thus, the developed system can be used to drive simultaneous IVUS imaging to assess the coronary environment and provide image-guided therapy of clots or plaques.
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