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Compact Vision Sensor for Motion Control

Compact Vision Sensor for Motion Control

引用

2007 International Conference on Control, Automation and Systems (ICCAS 2007), vol.4

作者： N. Kawano M. Tanaka D. Yamanaka T. Hamada S. Moromugi T. Ishimatsu Department of Mechanical Systems Engineering Nagasaki University Nagasaki Japan Graduate School of Biomedical Sciences Nagasaki University Nagasaki Japan

Authors are developing a rotorcraft with autonomous controller for the remote sensing of agricultural fields. Accurate position sensing is essential to the development of the autonomous control system. One major method for the position sensing is to use the image processing technique. Among the image processing techniques labeling processing is most practical and is widely used for detecting the position of target objects. The labeling technique often requires high computing performance. In order to make our remote sensing system available at various practical fields, our labeling technique should be realized in compact system with enough processing speed. In this study, a FPGA based compact vision sensor to achieve fast labeling procedures is proposed. A feature of our vision sensor is that labeling process is simplified and fastened by introducing the horizontal center line information on behalf of contour data of the target objects. Therefore the performance of the processing speed and memory usage are enhanced. Due to our original technique, real-time labeling process could be achieved on the FPGA based compact vision sensor. Through several experiments, the excellent performance of the prototyped vision sensor on target detection was demonstrated.

关键词： Labeling processing Real time processing Vision sensor FPGA

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Morphological Approach for the Functional Improvement of an Artificial Myocardial Assist Device using Shape Memory Alloy Fibres

Morphological Approach for the Functional Improvement of an ...

引用

29th Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBS 2007), vol.10

作者： Y. Shiraishi T. Yambe Y. Saijo F. Sato A. Tanaka M. Yoshizawa D. Ogawa Y. Wada S. Itoh R. Sakata Y. Park M. Uematsu M. Umezu T. Fujimoto N. Masumoto H. Liu A. Baba S. Konno S. Nitta K. Imachi K. Tabayashi H. Sasada D. Homma Institute of Development Aging and Cancer University of Tohoku Sendai Japan Graduate School of Engineering University of Tohoku Sendai Japan Faculty of Symbiotic Systems Science Fukushima University Fukushima Japan Information Synergy Center University of Tohoku Sendai Japan Waseda University Tokyo Japan Shibaura Institute of Technology Tokyo Japan Department of Mechanical Engineering Nippon Institute of Technology Saitama Japan Engineering Research Organization Tohoku University Biomedical Sendai Japan Graduate School of Medicine University of Tohoku Sendai Japan Graduate School of Agriculture University of Tohoku Sendai Japan Toki Corporation Tokyo Japan

The authors have been developing a mechano-electric artificial myocardial assist system (artificial myocardium) which is capable of supporting natural contractile functions from the outside of the ventricle without blood contacting surface. In this study, a nano-tech covalent type shape memory alloy fibre (Biometal, Toki Corp, Japan) was employed and the parallel-link structured myocardial assist device was developed. And basic characteristics of the system were examined in a mechanical circulatory system as well as in animal experiments using goats. The contractile functions were evaluated with the mock circulatory system that simulated systemic circulation with a silicone left ventricular model and an aortic afterload. Hemodynamic performance was also examined in goats. Prior to the measurement, the artificial myocardial assist device was installed into the goat's thoracic cavity and attached onto the ventricular wall. As a result, the system could be installed successfully without severe complications related to the heating, and the aortic flow rate was increased by 15% and the systolic left ventricular pressure was elevated by 7% under the cardiac output condition of 3L/min in a goat And those values were elevated by the improvement of the design which was capable of the natural morphological myocardial tissue streamlines. Therefore it was indicated that the effective assistance might be achieved by the contraction by the newly-designed artificial myocardial assist system using Biometal. Moreover it was suggested that the assistance gain might be obtained by the optimised configuration design along with the natural anatomical myocardial stream line.

关键词： Myocardium Shape memory alloys Optical fiber devices Circulatory system Blood Surface morphology Nanoscale devices Animal structures Hemodynamics Heating

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Robotic surgical systems

引用

biomedical Instrumentation and Technology 2006年第6期40卷 461-464页

作者： Franklin, Barrett University of Connecticut Clinical Engineering Internship Graduate Program Department of Biomedical Engineering United States

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A comparison between traditional shift-and-add (SAA) and point-by-point back projection (BP) -- relevance to morphology of microcalcifications for isocentric motion in Digital Breast tomosynthesis (DBT)

A comparison between traditional shift-and-add (SAA) and poi...

引用

IEEE Symposium on Bioinformatics and Bioengineering (BIBE)

作者： Ying Chen Joseph Y. Lo James T. Dobbins Department of Electrical and Computer Engineering Southem Illinois University Carbondale Carbondale IL USA Duke Adavanced Imaging Laboratories Duke University Medical Center Duke University Durham NC USA Department of Biomedical Engineering Duke University and Duke University Medical Center Durham North Carolina 27710 Duke Advanced Imaging Laboratories Duke University and Duke University Medical Center Durham North Carolina 27710 Medical Physics Graduate Program Duke University and Duke University Medical Center Durham North Carolina 27710

Digital breast tomosynthesis (DBT) is a three-dimensional imaging technique providing an arbitrary set of reconstruction planes in the breast with limited series of projection images. This paper describes a comparison between traditional shift-and-add (SAA) and point-by-point back projection (BP) algorithms by impulse response and modulation transfer function (MTF) analysis. Due to the partial isocentric motion of the x-ray tube in DBT, structures such as microcalcifications appear slightly blurred in traditional shift-and-add (SAA) images in the direction perpendicular to the direction of tube's motion. Point-by-point BP improved rendition of microcalcifications. The sharpness and morphology of calcifications were improved in a human subject images. A filtered back projection (FBP) deblurring approach was used to demonstrate deblurred point-by-point BP tomosynthesis images. The point-by-point BP rather than traditional SAA should be considered as the foundation of further deblurring algorithms for DBT reconstruction.

关键词： Morphology Image reconstruction X-ray imaging Back Image edge detection Breast cancer Detectors biomedical engineering Transfer functions Humans

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The development of a mechanical engineering freshman program

The development of a mechanical engineering freshman program

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113th Annual ASEE Conference and Exposition, 2006

作者： Hinds, Timothy Somerton, Craig Chalou, Robert Radcliffe, Clark Griffore, Gaile Michigan State University United States Michigan State University Department of Mechanical Engineering United States Undergraduate Program Department of Mechanical Engineering Michigan State University United States Graduate Program Department of Mechanical Engineering Michigan State University United States American Society of Mechanical Engineers United States Department of Mechanical Engineering 2439 Engineering Building United States Department of Mechanical Engineering 2560 Engineering Building United States

No abstract available

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Interdisciplinary design teams - Lessons learned from experience

Interdisciplinary design teams - Lessons learned from experi...

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113th Annual ASEE Conference and Exposition, 2006

作者： Leiffer, Paul Gonzalez, Roger Hellmuth, Thomas LeTourneau University United States School of Engineering and Engineering Technology LeTourneau University United States Program in BioMedical Engineering United States Department of Biomedical and Mechanical Engineering LeTourneau University United States Department of Mechanical Engineering University of Delaware United States School of Engineering and Engineering Technology LeTourneau University Longview TX United States

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Revision of freshman engineering graphics to support an evolving core design sequence

Revision of freshman engineering graphics to support an evol...

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113th Annual ASEE Conference and Exposition, 2006

作者： Nastasi, John Sheppard, Keith Chassapis, Constantin Stevens Institute of Technology United States Product-Architecture Lab. Interdisciplinary Graduate Program in Product Design Architecture and Engineering Department of Materials Engineering Executive Committee Department of Mechanical Engineering Department of Mechanical Engineering Stevens Institute of Technology United States

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Strategies for integrating service-learning into the engineering core at the university of Massachusetts Lowell and the Massachusetts institute of technology

Strategies for integrating service-learning into the enginee...

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113th Annual ASEE Conference and Exposition, 2006

作者： Banzaert, Amy Duffy, John Wallace, David Massachusetts Institute of Technology United States MIT's Mechanical Engineering Department University of Massachusetts Lowell United States Mechanical Engineering Department Solar Engineering Graduate Program Center for Sustainable Energy University of Massachusetts Lowell United States Department of Mechanical Engineering MIT United States MIT Computer-aided Design Laboratory

While the pedagogy of Service-Learning (S-L) has been applied beneficially in a variety of disciplines, only recently have engineering departments begun to adopt the practice of integrating academically-relevant community service projects into classes and, in doing so, it is most common to offer service-oriented projects in elective classes. However, the University of Massachusetts Lowell and the Massachusetts Institute of Technology have independently begun to develop S-L programs in engineering fields that work specifically to use the pedagogy in the core curriculum of the discipline. While the two universities and educational programs are distinct, the approach to S-L has been reasonably similar, and faculty and staff from each school have used common tools and methods to assess certain aspects of the integration from student and faculty perspectives. From surveys used at both of the schools (almost 760 pre-surveys and 680 post-surveys administered in the 04-05 academic year), a key finding was that student opinion changed significantly regarding the relationship between engineering and societal problems;students developed the belief that engineers should apply their skills to solve social problems. Additionally, both institutions surveyed the engineering faculty about their attitudes toward S-L and found the majority of faculty showed considerable interest in the concept. Overall, these findings show promise for integrating S-L into core engineering curriculums. © American Society for engineering Education, 2006.

关键词： Learning systems

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engineering at the elementary level - Does teacher team size impact effectiveness?

Engineering at the elementary level - Does teacher team size...

引用

113th Annual ASEE Conference and Exposition, 2006

作者： Cyr, Martha Doherty, Sean Shanbhag, Shweta Worcester Polytechnic Institute United States Mechanical Engineering Department Worcester Polytechnic Institute Worcester MA United States PCET Program Department of Biomedical Engineering Worcester Polytechnic Institute MA United States

Teachers are often asked or required to introduce their students to concepts and content that the teacher does not have a background or training in. Pre-engineering concepts certainly fall within this list of things for elementary teachers. As part of our program to help teachers learn the necessary content to do engineering design activities in their classrooms, we also assessed the impact of teacher team size. Some of the things we considered are: if a team of teachers attends the workshop to learn the content, are they more effective implementing it than teachers who did not attend the workshop as part of a team? Does the size of a team make a difference? This paper discusses how the content is presented, and measured results for varying size teams. © American Society for engineering Education, 2006.

关键词： engineering education

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Blank slate engineering at Florida Gulf Coast University - Innovative and multidisciplinary from the ground up

Blank slate engineering at Florida Gulf Coast University - I...

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113th Annual ASEE Conference and Exposition, 2006

作者： Blanchard, Susan Egiebor, Nosa Sweeney, James Zidek, Lisa Sechrist, Chalmers Hulbert, Sam Osborn, James O'Neill, Robert Florida Gulf Coast University United States FGCU School of Engineering Institute of Electrical and Electronics Engineers Biomedical Engineering Society American Institute for Medical and Biological Engineering United Kingdom Department of Environmental and Civil Engineering Arizona State University United States Department of Bioengineering Department of Bioengineering Arizona State University United States Flinn Foundation Funded Multi- and Interdisciplinary Graduate Training Program in Bioengineering Milwaukee School of Engineering United States Graduate Programs Industrial Engineering Program Department of Electrical and Computer Engineering Department of Engineering University of Illinois Urbana-Champaign United States Institute of Electrical and Electronics Engineers Rose-Hulman Institute for Technology School of Engineering FGCU School of Engineering's Advisory Board Roger Williams University United States Department of Civil Engineering Department of Engineering Roger Williams University United States

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