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IEEE Aerospace Conference

作者： Aakarsh Rao Minsik Hong Akash Shankaran Wolfgang Fink Jerzy Rozenblit Model Based Design Laboratory Department of Electrical & Computer Engineering University of Arizona Visual and Autonomous Exploration Systems Research Laboratory Systems Departments of Electrical & Computer Engineering Biomedical Engineering Systems & Industrial Engineering Aerospace & Mechanical Engineering Ophthalmology & Vision Science Universi Department of Surgery University of Arizona

ISBN: (纸本)9781479916191

Medical surgeries in the space environment, including long term space travel (e.g., to Mars) and permanent presence on other planetary bodies (e.g., Moon and Mars), are posing an inherent logistical, and in the absence of appropriately trained personnel (i.e., surgeons), even a potentially life-threatening challenge. As a potential mitigation the use of an existing surgical trainer tool that would allow crewmembers to acquire basic surgical skills is proposed, and to train space station personnel both in space and on the Moon and Mars to hone these skills long-term. Furthermore, this tool would potentially allow for tele-conducted surgeries, akin to the da Vinci Surgical System, controlled from Earth but executed onboard, e.g., the International Space Station. On Earth the surgical trainer can be used to train surgeons and flight surgeons. The efficiency of any surgical training system plays a significant role in its reduction of operative risks and stress associated with insufficient experience of the trainee. The primary goal of such systems is to raise the trainee to a higher level of proficiency without putting patients at risk in the operating room. The prototype for the Computer Assisted Surgical Trainer (CAST) being developed at the University of Arizona realizes an optimal motion-planning algorithm. The underlying system consists of mechanical fixtures equipped with encoders and DC motors. This hardware provides a means to accurately track the tip movements of laparoscopic instruments used in minimally invasive surgery. Furthermore it provides haptic and visual feedback to trainees by using a PID controller and augmented reality visualization. Examples of surgical guidance and the improvement of surgeon performance over time using CAST are presented.

关键词： Surgery Instruments Training Visualization Haptic interfaces Space stations Aerospace electronics

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A new balanced-to-single-ended (BTSE) power divider

A new balanced-to-single-ended (BTSE) power divider

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2014 IEEE International Wireless Symposium, IWS 2014

作者： Wu, Lin-Sheng Guo, Yong-Xin Qiu, Liang-Feng Mao, Jun-Fa Key Laboratory of Ministry of Education of Design and EMC of High-Speed Electronic Systems Shanghai Jiao Tong University Shanghai 200240 China Department of Electrical and Computer Engineering National University of Singapore Singapore 117576 Singapore Research Institute Suzhou City 215123 Jiangsu Province China

ISBN: (纸本)9781479934034

A balanced-to-single-ended (BTSE) power divider is proposed in this paper. Its input is a differential pair while both the outputs are single-ended ports. It can replace the cascade of a balun and a conventional power divider. The characteristics requirements of a two-way BTSE power divider with equal power division are first derived, and then a prototype is designed for 2.0 GHz. In order to construct the component compactly, a short-ended four-wire coupled line and T-shaped sections are utilized to realize a -90° transmission line and a phase inverter, respectively. The developed prototype occupies an area of 0.077 λg2, where λg is the guided wavelength of central frequency. It provides all the desired performances within the operating bandwidth of 25%, with low insertion loss and good balance also achieved. © 2014 IEEE.

关键词： Timing circuits

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Phonon amplification in two coupled cavities containing one mechanical resonator

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Physical Review A 2014年第5期90卷 053814-053814页

作者： Hui Wang Zhixin Wang Jing Zhang Şahin Kaya Özdemir Lan Yang Yu-xi Liu Institute of Microelectronics Tsinghua University Beijing 100084 China Department of Microelectronics and Nanoelectronics Tsinghua University Beijing 100084 China Department of Automation Tsinghua University Beijing 100084 China Tsinghua National Laboratory for Information Science and Technology (TNList) Beijing 100084 China Department of Electrical and Systems Engineering Washington University St. Louis Missouri 63130 USA

We study a general theory of phonon lasing [I. S. Grudinin et al., Phys. Rev. Lett. 104, 083901 (2010)] in coupled optomechancial systems. We derive the dynamical equation of the phonon lasing using supermodes formed by two cavity modes. A general threshold condition for phonon lasing is obtained. We also show the differences between phonon lasing and photon lasing, generated by photonic supermodes and a two-level atomic ensemble, respectively. We find that the phonon lasing can be produced in a certain parameter regime near the threshold. The phase diagrams and degrees of second-order coherence for the phonon lasing are also studied to show some interesting phenomena that cannot be observed in the photon lasing generated by two-level atomic ensembles.

关键词： CAVITY resonators OPTOMECHANICS PHONONS AMPLIFICATION (Physics) PHASE diagrams

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A new balanced-to-single-ended (BTSE) power divider

A new balanced-to-single-ended (BTSE) power divider

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IEEE International Wireless Symposium (IWS)

作者： Lin-Sheng Wu Yong-Xin Guo Liang-Feng Qiu Jun-Fa Mao Department of Electrical and Computer Engineering National University of Singapore Singapore Singapore Key Laboratory of Ministry of Education of Design and EMC of High-Speed Electronic Systems Shanghai Jiao Tong University Shanghai China

A balanced-to-single-ended (BTSE) power divider is proposed in this paper. Its input is a differential pair while both the outputs are single-ended ports. It can replace the cascade of a balun and a conventional power divider. The characteristics requirements of a two-way BTSE power divider with equal power division are first derived, and then a prototype is designed for 2.0 GHz. In order to construct the component compactly, a short-ended four-wire coupled line and T-shaped sections are utilized to realize a -90° transmission line and a phase inverter, respectively. The developed prototype occupies an area of 0.077 λ g 2 , where λ g is the guided wavelength of central frequency. It provides all the desired performances within the operating bandwidth of 25%, with low insertion loss and good balance also achieved.

关键词： Power dividers Power transmission lines Impedance Prototypes Microwave filters Inverters Ports (Computers)

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Automatic complex instruction identification for efficient application mapping onto ASIPs

Automatic complex instruction identification for efficient a...

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IEEE Latin American Symposium on Circuits and systems (LASCAS)

作者： Alexandre S. Nery Nadia Nedjah Felipe M. G. França Lech Jozwiak Henk Corporaal Department of Electrical Engineering - Electronic Systems Eindhoven University of Technology The Netherlands Department of Electronics Engineering and Telecommunications Universidade do Estado do Rio de Janeiro Brazil LAM - Computer Architecture and Microelectronics Laboratory Universidade Federal do Rio de Janeiro Brazil

Instruction Set Customization is a well-known technique to enhance the performance and efficiency of Application-Specific Processors (ASIPs). An extensive application profiling can indicate which parts of a given application, or class of applications, are most frequently executed, enabling the implementation of such frequently executed parts in hardware as custom instructions. However, a naive ad hoc instruction set customization process may identify and select poor instruction extension candidates, which may not result in a significantly improved performance with low circuit-area and energy footprints. In this paper we propose and discuss an efficient instruction set customization method and automatic tool, which exploit the maximal common subgraphs (common operation patterns) of the most frequently executed basic blocks of a given application. The speed results from our tool for a VLIW ASIP are provided for a set of benchmark applications. The average execution time reduction ranges from 30% to 40%, with only a few custom instructions.

关键词： VLIW Hardware Ray tracing Program processors Registers Libraries Convolution

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EPMA-World Congress 2015 Bonn, Germany. 3-5 September 2015 Abstracts

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EPMA JOURNAL 2016年第SUPPL 1期7卷 9-9页

作者： [Anonymous] Department of Radiology University of Bonn Sigmund-Freud-Str. 25 53105 Bonn Germany Market Access at Unicorn P.O.B. 91 Zhytomyr 10020 Ukraine Nanotechnology & Smart Systems NASA Ames Research Center Moffett Field CA USA Department of Neurosurgery Valparaiso University Medical School Valparaiso Chile Department of Oral Biology College of Dental Medicine Georgia Regents University Augusta Georgia 30912 USA Research Developing and Training Centre of Molecular Microbiology and Mucosal Immunology Uzhhorod National University Uzhhorod Ukraine “Astra-DIA” Medical Diagnostic Centre Uzhhorod Ukraine Cassovia Life Science Kysucké Nové Mesto Slovakia Department of Biomedical Engineering Wroclaw University of Technology Wroclaw Poland Faculty of Physiotherapy Wrocław University School of Physical Education Wroclaw Poland Pavol Jozef Šafárik University Košice Slovakia Uzhhorod National University Uzhhorod Ukraine Clinical Hospital “Pheophania” of State Affairs Department The Centre of Ultrasound Diagnostics and Interventional Sonography Kyiv Ukraine Association “Health and Wealth” Kyiv Ukraine TSBUA “IT Solutions” Kyiv Ukraine Maastricht University Medical Centre Maastricht The Netherlands Fleischhacker GmbH Schwerte Germany RIMS bvba Overijse Belgium German Foundation For the Chronically Ill Fürth Germany Linköping University Norrköping Sweden Medical Faculty Pilsen Pilsen Czech Republic Sananet Care BV Sittard The Netherlands Exploris AG Zürich Switzerland ense.ly San Francisco USA Mulimedica SPA Milano Italy Medtronic Iberica SA Madrid Spain Clinical Hospital “Pheophania” of State Affairs Department Zabolotny Str. 21 Kyiv 03680 Ukraine Zabolotny Institute of Microbiology and Virology National Academy of Sciences of Ukraine 154 Zabolotny st. Kyiv 03680 Ukraine Endocrinology centre Clinical Hospital “Pheophania” of State Affairs Department Zabolotny Str. 21 Kyiv 03680 Ukraine Bogomolets National Medical University T. Shevchenko boulevard 13 Kyi

A1 Predictive and prognostic biomarker panel for targeted application of radioembolisation improving individual outcomes in hepatocellular carcinoma Jella-Andrea Abraham, Olga Golubnitschaja A2 Integrated market access approach amplifying value of “Rx-CDx” Ildar Akhmetov A3 Disaster response: an opportunity to improve global healthcare Russell J. Andrews, Leonidas Quintana A4 USA PPPM: proscriptive, profligate, profiteering medicine-good for 1 % wealthy, not for 99 % unhealthy Russell J. Andrews A5 The role of IDO in a murine model of gingivitis: predictive and therapeutic potentials Babak Baban, Jun Yao Liu, Xu Qin, Tailing Wang, Mahmood S. Mozaffari A6 Specific diets for personalised treatment of diabetes type 2 Viktoriia V. Bati, Tamara V. Meleshko, Olga B. Levchuk, Nadiya V. Boyko A7 Towards personalized physiotherapeutic approach Joanna Bauer, Ewa Boerner, Halina Podbielska A8 Cells, animal, SHIME and in silico models for detection and verification of specific biomarkers of non-communicable chronic diseases Alojz Bomba, Viktor O. Petrov, Volodymyr G. Drobnych, Rostyslav V. Bubnov, Oksana M. Bykova, Nadiya V. Boyko A9 INTERACT-chronic care model: Self-treatment by patients with decision support e-Health solution Hans-Peter Brunner-La Rocca, Lutz Fleischhacker, Olga Golubnitschaja, Frank Heemskerk, Thomas Helms, Tiny Jaarsma, Judita Kinkorova, Jan Ramaekers, Peter Ruff, Ivana Schnur, Emilio Vanoli, Jose Verdu A10 PPPM in cardiovascular medicine in 2015 Hans-Peter Brunner-La Rocca A11 Magnetic resonance imaging of nanoparticles in mice, potential for theranostic and contrast media development – pilot results Rostyslav V. Bubnov, Sergiy A. Grabovetskyi, Olena M. Mykhalchenko, Natalia O. Tymoshok, Oleksandr B. Shcherbakov, Igor P. Semeniv, Mykola Y. Spivak A12 Ultrasound diagnosis for diabetic neuropathy - comparative study Rostyslav V. Bubnov, Tetyana V. Ostapenko A13 Ultrasound for stratification patients with diabetic foot ulcers for prevention and pers

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A framework for automatic custom instruction identification on multi-issue ASIPs

A framework for automatic custom instruction identification ...

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IEEE International Conference on Industrial Informatics (INDIN)

作者： Alexandre S. Nery Nadia Nedjah Felipe M. G. França Lech Jozwiak Henk Corporaal LAM - Computer Architecture and Microelectronics Laboratory COPPE Universidade Federal do Rio de Janeiro Brazil Department of Electrical Engineering - Electronic Systems Eindhoven University of Technology The Netherlands Universidade do Estado do Rio de Janeiro Rio de Janeiro RJ BR

Custom Instruction Identification is an important part in the design of efficient Application-Specific Processors (ASIPs). It consists of profiling of a given application to find patterns of basic operations that are frequently executed. Operations of such patterns can be implemented together as a single custom instruction to speedup the execution of the application. Because of the problem's high complexity, several methods have been proposed for specific single-issue (RISC) processors and architectures, limiting the shape and size of custom instructions that can actually be identified and, possibly, implemented. In this paper, we propose and discuss an efficient custom instruction set identification method and corresponding automatic tool for multi-issue VLIW ASIPs, which search for the common operation patterns of the most frequently executed basic blocks of a given application, with different sizes and shapes. The speedup results for the custom instructions identified by our tool are provided for a set of benchmark applications. The speedup is up to 68%, with only a few custom instructions used.

关键词： VLIW Program processors Libraries Registers Ray tracing Hardware Shape

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Notched ultra-wideband filter based on stepped-impedance T-shaped resonator in low temperature cofired ceramic

Notched ultra-wideband filter based on stepped-impedance T-s...

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IEEE International Wireless Symposium (IWS)

作者： Chun-Xia Zhou Yong-Xin Guo Lin-Sheng Wu Wen Wu Qian Xiao Ministerial Key Laboratory of JGMT Nanjing University of Science and Technology Nanjing China Department of Electrical and Computer Engineering National University of Singapore Singapore Key Lab of Ministry of Education for Research of Design and EMC of High-Speed Electronic Systems Shanghai Jiao Tong University Shanghai China

A compact ultra-wideband (UWB) bandpass filter with an inherent notched band and steep slopes has been presented and implemented with the low temperature cofired ceramic technology. The filter is realized by a stepped-impedance T-shaped resonator (SITR) coupled to a pair of quarter-wavelength input/output feed-lines. The proposed SITR can facilitate not only a notched band, but also sharp roll-off characteristics. Measured results agree well with the HFSS simulated results. The whole size of the UWB filter is only 6.0×6.0×1.92 mm 3 .

关键词： Band-pass filters Resonator filters Filtering theory Resonant frequency Ultra wideband technology Wireless communication Metals

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Rate adaptation and base station reconfiguration for battery efficient video download

Rate adaptation and base station reconfiguration for battery...

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IEEE Conference on Wireless Communications and Networking

作者： Ranjini Guruprasad Sujit Dey Mobile Systems Design Laboratory Department of Electrical and Computer Engineering University of California San Diego USA

ISBN: (纸本)9781467359382

With increasing usage of mobile devices to watch mobile video, the battery consumption of mobile devices will be dominated by video delivery and playback. In this paper, we develop battery efficient video delivery techniques that vary video transmission rate dynamically depending on battery and buffer levels of the mobile device, the channel conditions experienced, and video quality requirements while maximizing battery life and ensuring user experience. The proposed dynamic video rate adaptation techniques enable the base station to adapt the Multi Input Multi Output (MIMO) transceiver configurations to reduce battery current required by MIMO components on the mobile device. The proposed techniques also make the base station stop video transmission opportunistically, thereby eliminating the battery load imposed by the mobile MIMO components. Experiments conducted under various network conditions for various video download profiles show that more than 50% improvement in battery lifetime is possible in comparison to conventional video download techniques not aware of battery.

关键词： Batteries Streaming media Bit error rate MIMO Decoding Mobile handsets Signal to noise ratio

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Adaptive Bit Rate capable video caching and scheduling

Adaptive Bit Rate capable video caching and scheduling

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IEEE Conference on Wireless Communications and Networking

作者： Hasti Ahlehagh Sujit Dey Mobile Systems Design Laboratory Department of Electrical and Computer Engineering University of California San Diego USA

ISBN: (纸本)9781467359382

Adaptive Bit Rate Streaming (ABR) has become a popular video delivery technique, credited to improving the quality of delivered video on wireless networks. At the same time, recent research has shown video caching in the Radio Access Network (RAN) can be a promising way to increase capacity of the network while reducing video latency and improving video quality of experience. In this work, we investigate the opportunities and challenges of combining the advantages of ABR streaming and RAN caching to maximize the video capacity of wireless networks. Since with ABR, each video is divided into multiple segments, chunks, and each chunk can be requested at different bit rates, the caching requirements are very different and challenging; a cache hit will require not only the presence of a specific video chunk, but also the availability of the desired bit rate. One way to solve this problem is to cache all variants of a video, but this approach may significantly increase storage and backhaul requirements or reduce the number of unique videos that can be cached. In this paper, we introduce a framework consisting of rate adaptation algorithm, video caching and processing within the wireless cloud, with the aim to improve video capacity of the wireless network and satisfy or exceed QoE of each video request. To achieve this goal, we propose a new ABR algorithm, along with an ABR aware Least Recently Used (LRU) caching policy with Processing (ABRLRU-P) to support caching of video chunks with different bit rates. Using our MATLAB statistical simulation framework, we demonstrate a capacity improvement of up to 83% when ABR is used with RAN caching and processing using the ABR-LRU-P policy compared with using no RAN caching and video processing. Further, using ABR along with ABRLRU-P caching policy can improve the capacity by 68% compared with using ABR and a straightforward static LRU caching policy which fetches all video bit rate versions of a video chunk upon a cache miss.

关键词： Streaming media Bit rate Delays Wireless networks Radio access networks Bandwidth

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