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2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011

作者： Kojima, Masami Sasaki, Hiroshi Sasaki, Kazuyuki Sakai, Taiji Wake, Kanako Watanabe, Soichi Kamimura, Yoshitsugu Hirata, Akimasa Suzuki, Yukihisa Taki, Masao Division of Vision Research for Environmental Health Medial Research Institute Kanazawa Medical University 1-1 Daigaku Uchinada-machi Kahoku-gun Ishikawa 920-0293 Japan Department of Ophthalmology Kanazawa Medical University 1-1 Daigaku Uchinada-machi Kahoku-gun Ishikawa 920-0293 Japan School of Nursing Kanazawa Medical University 1-1 Daigaku Uchinada-machi Kahoku-gun Ishikawa 920-0293 Japan Department of Rehabilitation Faculty of Medical Science and Welfare Tohoku Bunka Gakuen University 45-1 6-chome Kunimi Aoba-ku Sendai Miyagi 981-8551 Japan Electromagnetic Compatibility Group Applied Electromagnetic Research Center National Institute of Information and Communications Technology 4-2-1 Nukui-Kitamachi Koganei Tokyo 184-8795 Japan Department of Information Science Faculty of Engineering Utsunomiya University 7-1-2 Yoto Utsunomiya Tochigi 321-8585 Japan Department of Computer Science and Engineering Nagoya Institute of Technology Gokiso-cho Showa-ku Nagoya Aichi 466-8555 Japan Division of Electrical and Electronic Engineering Graduate Schools of Science and Engineering Tokyo Metropolitan University 1-1 Minamiosawa Hachioji Tokyo 192-0397 Japan

ISBN: (纸本)9781424451173

The acute ocular injury threshold of 76 GHz band millimeter wave (MMW) exposure was investigated using an in vivo rabbit model. Pigmented rabbits were exposed unilaterally to 200, 100, 75, 50, 10 mW/cm2 76 GHz band MMW for 6 min with a lens antenna. Corneal opacity, epithelial injury, miosis, and ocular inflammation were present up to 2-3 days after exposure at a dose of 200 mW/cm2. No ocular changes other than reversible corneal epithelial injury were seen following exposure at 100 and 75 mW/cm2. There were no ocular changes after exposure at doses of 50 or 10 mW/cm2. Six-minute exposure to 76 GHz 10 mW/cm2 did not induce any detectable ocular tissue damage. © 2011 IEEE.

关键词： Millimeter waves

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A Fault Tolerance Scheme for Reliable Transfer in Delay Tolerant Networks

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Journal of Donghua University(English Edition) 2010年第1期27卷 98-102页

作者：邵清丁永生胡志华 College of Information Science and Technology Donghua University School of Computer and Electrical Engineering University of Shanghai for Science and Technology Engineering Research Center of Digitized Textile & Fashion Technology Ministry of EducationDonghua University

Delay Tolerant Network （DTN） is a class of networks that experience frequent and long-duration partitions due to sparse distribution of nodes. It has a broad prospect to new network applications for a better sealability, fault-tolerant, and high performance. In DTNs, path failure occurs frequently, so message transfer is not reliable. Sometimes it is required to change routing even in a very short period, resulting in transmission delay and reception delay. However, some well-known assumptions of traditional networks are no longer true in DTNs. In this paper, we study the problem of path failures in DTNs. The path failure process in DTNs is described when the path appears completely normal, completely failed and partially failed. Traditional approaches based on using precisely known network dynamics have not accounted for message losses. A new fault tolerant scheme to generate redundancy is to use erasure coding and full replication. This can greatly decrease the path failure rate. At last, a traffic DTN model is analyzed. Results reveal the superiority of our scheme in comparison to other present schemes.

关键词： delay tolerant network fault tolerance path failure erasure coding

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Development of Planar Microelectrode Array for Extracellular Characterization of Action Potentials in Sinoatrial Node Cells

Development of Planar Microelectrode Array for Extracellular...

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2011 International Symposium on Bioelectronics and Bioinformatics(第二届国际生物医学电子学与生物信息学学术会议 ISBB 2011)

作者： Xin Zhang Yulong Zhang Yingxin Li Richard D. Nelson John C. LaRue Neural Engineering Research Lab Z&L Creative Corporation Lewes DE 19958 USA and the Department of Pen-Tung Sah Micro-Nano Technology Research Center Xiamen University Fujian 361005 P. R. China Department of Physiology Temple University School of Medicine Philadelphia PA 19140 USA Department of Electrical Engineering and Computer Science University of California Irvine CA 9269 Mechanical and Aerospace Engineering Department University of California Irvine CA 92697 USA

In this research work we prototyped a planar microelectrode arrays that utilize SU-8 as the insulating material for non-invasive chronically characterization of action potentials from SA node cells. The microelectrode arrays are fabricated to form a microchannel based extracellular action potential characterization system which comprises a 2 by 50 linear microelectrode array for acquiring the action potentials with the principle of capacitive coupling and a full customized CMOS analog bio-signal readout ASIC for bio-signal conditioning and processing. The prototyped multi-channel mixed signal fully-customized CMOS biosensor analog front-end serves as the low magnitude action potential signal readout circuitry, which is comprised of analog signal buffers, high gain amplifier and control/interface. The concept of using epoxy-based photoresist SU-8 as the insulator instead of the conventional silicon nitride or silicon dioxide is due to the high insulation property and biocompatibility of the SU-8 material. This biocompatible planar microelectrode arrays with microchannels provides the biological scientists powerful tools for the long term non-invasive study of action potentials from SA node cells to screen libraries of chemical compounds for new drug candidates.

关键词： Arrays Microelectrodes Biosensors Insulators Electric potential

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Paper Persistence and computer-based Workarounds with the Electronic Health Record in Primary Care

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Proceedings of the Human Factors and Ergonomics Society Annual Meeting 2011年第1期55卷 660 - 664页

作者： Jason J. Saleem Mindy Flanagan Laura G. Militello Nicole Arbuckle Alissa L. Russ A. Lucile Burgo-Black Bradley N. Doebbeling VA HSR&D Center on Implementing Evidence-Based Practice Roudebush VAMC Indianapolis INDepartment of Electrical & Computer Engineering IUPUI Indianapolis IN Indiana University (IU) Center for Health Services & Outcomes Research Indianapolis IN Applied Decision Science Kettering OH University of Dayton Research Institute Dayton OH VA HSR&D Center on Implementing Evidence-Based Practice Roudebush VAMC Indianapolis INIndiana University (IU) Center for Health Services & Outcomes Research Indianapolis INDepartment of Pharmacy Practice Purdue University College of Pharmacy West Lafayette IN VA Connecticut Healthcare SystemYale University School of Medicine New Haven CT VA HSR&D Center on Implementing Evidence-Based Practice Roudebush VAMC Indianapolis INIndiana University (IU) Center for Health Services & Outcomes Research Indianapolis INDepartment of Medicine IU School of Medicine Indianapolis IN

With the United States national goal and incentive program to transition from paper to electronic health records (EHRs), healthcare organizations are increasingly implementing EHRs and other related health information technology (IT). However, in institutions which have long adopted these computerized systems, such as the Veterans Health Administration, healthcare workers continue to rely on paper to complete their work. Furthermore, insufficient EHR design also results in computer-based workarounds. Using direct observation with opportunistic interviewing, we investigated the use of paper- and computer-based workarounds to the EHR with a multi-site study of 54 healthcare workers, including primary care providers, nurses, and other healthcare staff. Our analysis revealed several paper- and computer-based workarounds to the VA’s EHR. These workarounds, including clinician-designed information tools, provide evidence for how to enhance the design of the EHR to better support the needs of clinicians.

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Photo-oxidation and the Absence of Photodarkening in Ge2Sb2Te5 Phase Change Material

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MRS Online Proceedings Library (OPL) 2011年第1期918卷 0918-H02-04-0918-H02-04页

作者： Bong-Sub Lee Ying Xiao Stephen G. Bishop John R. Abelson Simone Raoux Vaughn R. Deline Min-Ho Kwon Ki-Bum Kim Byung-ki Cheong Heng Li blee@uiuc.edu University of Illinois at Urbana-Champaign Materials Science and Engineering 1101 W. Springfield Ave. Rm 1-110 Urbana IL 61801 United States 1-217-244-0332 yxiao2@uiuc.edu University of Illinois at Urbana-Champaign Department of Materials Science and Engineering Urbana IL 61801 United States sgbishop@uiuc.edu University of Illinois at Urbana-Champaign Department of Electrical and Computer Engineering Urbana IL 61801 United States abelson@uiuc.edu University of Illinois at Urbana-Champaign Department of Materials Science and Engineering Urbana IL 61801 United States simone_raoux@*** IBM Almaden Research Center San Jose CA 95120 United States deline@*** IBM Almaden Research Center San Jose CA 95120 United States jb0530@snu.ac.kr Seoul National University School of Materials Science and Engineering Seoul N/A 151-742 Korea Republic of kibum@snu.ac.kr Seoul National University School of Materials Science and Engineering Seoul N/A 151-742 Korea Republic of bkcheong@kist.re.kr Korea Institute of Science and Technology Thin Film Materials Research Center Seoul N/A 136-791 Korea Republic of hengli@physics.utah.edu Colorado School of Mines Physics Department Golden Co 80401 United States

Ge2Sb2Te5 is under intense investigation for phase-change memory devices, including rewriteable DVDs where optical illumination is used to switch between the glassy and crystalline states. We investigate the influence of optical irradiation on amorphous phase. Many chalcogenides display photo-oxidation, photodarkening or photo-bleaching, but little has been reported on the Ge-Sb-Te system. Using spectroscopic ellipsometry (SE) and secondary ion mass spectrometry, we determine that the samples have a strong tendency to photo-oxidize; if this is not accounted for, then the analysis of SE data appears to show photodarkening. Other authors recently reported photodarkening in nonstoichiometric GexSb20-xTe80 [Pamukchieva et al., Proc. SPIE 5581, 608 (2004); Pamukchieva et al., J. Optoelectron. Adv. Mater 7, 1277 (2005)], but our analysis suggests that the changes were also the result of photo-oxidation. The oxide has lower value of (n, k) than Ge2Sb2Te5, and can be etched by hydrofluoric acid or water. The photo-oxidation is presumably the result of free carrier generation in the Ge2Sb2Te5. Our observation of negligible photodarkening is consistent with previous works that found less photodarkening in tellurides compared with selenides or sulfides, and that an increase in the mean coordination number, here by Ge addition, further reduces the photodarkening effect.

关键词： phase transformation optical properties oxidation

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Human Factors Education for Healthcare Audiences: Ideas for the Way Forward

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Proceedings of the Human Factors and Ergonomics Society Annual Meeting 2011年第1期55卷 808 - 812页

作者： Alissa L. Russ Laura G. Militello Jason J. Saleem Robert L. Wears Rollin J. Fairbanks Ben-Tzion Karsh VA HSR&D Center on Implementing Evidence-Based Practice Roudebush VAMC Indianapolis INRegenstrief Institute Inc. Indianapolis INIndiana University (IU) Center for Health Services & Outcomes Research Indianapolis INPurdue University School of Pharmacy Department of Pharmacy Practice West Lafayette IN Applied Decision Science Dayton OHUniversity of Dayton Research Institute Dayton OH VA HSR&D Center on Implementing Evidence-Based Practice Roudebush VAMC Indianapolis INRegenstrief Institute Inc. Indianapolis INIndiana University (IU) Center for Health Services & Outcomes Research Indianapolis INDepartment of Electrical & Computer Engineering IUPUI Indianapolis IN University of Florida City FLImperial College of London National Center for Human Factors Engineering in Healthcare Washington DCGeorgetown University Department of Emergency Medicine Washington DCUniversity of Buffalo Department of Industrial and Systems Engineering Buffalo NY University of Wisconsin Madison WI

Within the last decade, there has been a growing emphasis on applying human factors principles in the healthcare domain, and although human factors is a well-established scientific discipline, it is still a relatively new concept for the healthcare community. Educating healthcare audiences on the goals, history, and contributions of the human factors discipline may dispel misconceptions; preserve the integrity of this scientific discipline; inform healthcare stakeholders about the value of human factors research; and increase the uptake of human factors principles in the healthcare domain. Panel members will share their views on human factors education for healthcare audiences, including their past experiences, personal successes, and insights on the challenges that remain. Panelists will also engage the audience in an open discussion to generate novel ideas on how to advance the healthcare community’s understanding of the human factors discipline.

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Encoded droplet microcarrier for formation and isolation of droplet in a microfluidic device

Encoded droplet microcarrier for formation and isolation of ...

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14th International Conference on Miniaturized Systems for Chemistry and Life sciences 2010, MicroTAS 2010

作者： Park, Wook Han, Sangkwon Lee, Hosuk Heinz, Austen James Kwon, Sunghoon School of Electrical Engineering and Computer Science Seoul National University Inter-University Semiconductor Research Center Korea Republic of

ISBN: (纸本)9781618390622

We present an encoded amphiphilic microcarrier including microwell of femtoliter volume and microfluidic system for simultaneous dispensing quantified femtoliter liquid on amphiphilic microcarrier. The encoded amphiphilic microcar-rier is composed of hydrophobic hexagonal outer structure and hydrophilic inner structure. We demonstrated fabrication and assembly of encoded amphiphilic microcarriers in a microfluidic device. Femtoliter aqueous volume was simultaneously loaded on encoded amphiphilic microcarriers by serial loading of aqueous liquid solution and oil solution. We controlled femtoscale dispensing volume by regulating microwell's diameter and depth. This technique would be applicable to high-throughput multiplexed assay based on suspension-based assay with quantified liquid dispensing on a microcar-rier in a microfluidic environment.

关键词： Drops

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Investigation of acute ocular injury threshold by 76 GHz band exposure in rabbits

Investigation of acute ocular injury threshold by 76 GHz ban...

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General Assembly and Scientific Symposium, URSI

作者： Masami Kojima Hiroshi Sasaki Kazuyuki Sasaki Taiji Sakai Kanako Wake Soichi Watanabe Yoshitsugu Kamimura Akimasa Hirata Yukihisa Suzuki Masao Taki School of Nursing Kanazawa Medical University Ishikawa Japan Division of Vision Research for Environmental Health Medial Research Institute Kanazawa Medical University 1-1 Daigaku Uchinada-machi Kahoku-gun Ishikawa 920-0293 Japan Kanazawa Medical University Kahoku-gun Ishikawa Japan Division of Vision Research for Environmental Health Medial Research Institute Department of Ophthalmology Department of Rehabilitation Faculty of Medical Science and Welfare Tohoku Bunka Gakuen University Aoba-ku Sendai Japan Electromagnetic Compatibility Group Applied Electromagnetic Research Center National Institute of Information and Communications Technology Koganei Tokyo Japan Department of Information Science Faculty of Engineering Utsunomiya University Utsunomiya Tochigi Japan Department of Computer Science and Engineering Nagoya Institute of Technology Nagoya Aichi Japan Division of Electrical & Electronic Engineering Graduate Schools of Science and Engineering Tokyo Metropolitan University Hachioji Tokyo Japan

The acute ocular injury threshold of 76 GHz band millimeter wave (MMW) exposure was investigated using an in vivo rabbit model. Pigmented rabbits were exposed unilaterally to 200, 100, 75, 50, 10 mW/cm 2 76 GHz band MMW for 6 min with a lens antenna. Corneal opacity, epithelial injury, miosis, and ocular inflammation were present up to 2-3 days after exposure at a dose of 200 mW/cm 2 . No ocular changes other than reversible corneal epithelial injury were seen following exposure at 100 and 75 mW/cm 2 . There were no ocular changes after exposure at doses of 50 or 10 mW/cm 2 . Six-minute exposure to 76 GHz 10 mW/cm 2 did not induce any detectable ocular tissue damage.

关键词： Rabbits Injuries Lenses Educational institutions Antennas Temperature measurement

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Scalable embedded Ge-junction vertical-channel tunneling field-effect transistor for low-voltage operation

Scalable embedded Ge-junction vertical-channel tunneling fie...

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2010 4th IEEE Nanotechnology Materials and Devices Conference, NMDC2010

作者： Sun, Min-Chul Kim, Sang Wan Kim, Garam Kim, Hyun Woo Lee, Jong-Ho Shin, Hyungcheol Park, Byung-Gook Inter-University Semiconductor Research Center School of Electrical Engineering and Computer Science Seoul National University Seoul Korea Republic of

ISBN: (纸本)9781424488964

While a tunneling field-effect transistor (TFET) is an attractive candidate for sub-20 nm ultra-low-power device, high ION/IOFF and on-current are rarely reported with the deep-submicron structures. In this study, we propose a practical novel TFET structure with vertical channel and Ge junction, which shows high current ratio, low subthreshold swing and relatively high current even when the minimum device dimension is smaller than 20 nm. To find the optimum design, the off-state injection of a short-channel TFET and optimization of the source-side junction are studied by simulation. © 2010 IEEE.

关键词： Tunnel field effect transistors

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RETRACTED ARTICLE: Modeling and simulation for the traditional activated sludge processes based on cellular automata

RETRACTED ARTICLE: Modeling and simulation for the tradition...

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作者： Zhang, Fang-Fang Cue, Peng School of Control Science and Engineering Shan Dong University JiNan Shandong Province China Automatic Control and Automation Department Research Center Bin Zhou University BinZhou Shandong Province China

ISBN: (纸本)9781424472369

After discussing the complexity of activated sludge system, its biological mechanism, and characteristics of traditional activated sludge method, the paper established a cellular automata model for traditional activated sludge processes, and then made simulations with practical parameters. The results indicate that the model well represents the evolvement of microbe in one upright section through configurations, and well describes the removal of substrate and the growth of activated sludge. The model realizes visualization of wastewater treatment in the bioreactor and visually depicts some characteristics of complex systems. Finally, the advantages of this model were analyzed. © 2010 IEEE.

关键词： Activated sludge process

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