MONDAY MEMO, MARCH 19, 2007 CONTENTS 1. Announcements 1.1: BNC All User Meetings: Monday 03.19, 6:00pm or Tuesday, 03.20, 7:00pm, MRGN 121 1.2: Equipment scheduling, billing, and logging for BNC Cleanroom. 1.3: Heads Up: Cleanroom Preventive Maintenance scheduled for May 1-2, 2007 1.4: Visitor Safety Glasses: a new program per John Weaver and Ira Young 2. Faculty/Staff/Student Awards and Honors 2.1: Professor Datta and Sayeef Salahuddin: Focus Center Research Program (FCRP) inventor recognition. 3. Seminar Announcements 3.1: “Piezoelectric Transducers – Strain Sensing and Energy Harvesting,” by Toshikazu Nishida, Interdisciplinary Microsystems Group, Department of Electrical and Computer Engineering, University of Florida, March 19, 11:00, BRK 2001 3.2: NCN/INAC Tutorial Lecture: “Nanoscale Antenna Apertures,” by Xianfan Xu, Professor, School of Mechanical Engineering, Purdue University, Wednesday, March 21, 2:00PM, EE 317 3.3: “CMOS-Nano Hybrid Technology: A nanoFPGA-related study,” by Dr. Wei Wang, Electrical and Computer Engineering, IUPUI, Wednesday, March 21, 3:30PM, POTR 234 (Fu Room) [Refreshments at 3:00PM] 3.4: RCHE Brownbag Lunch Series: “Engineering a Policy-Based System for Federated Healthcare Databases,” by Arjmand Samuel, Electrical and Computer Engineering, Purdue University; March 23, 11:30, MRGN 206 3.5: Materials Science and Engineering Seminar: “Damage to Concrete by Crystallization of Ice,” by George W. Scherer, Princeton University, Friday, March 23, 3:30; MSEE B012 4. Workshops/Conferences 4.1: Center for the Environment (C4E) Graduate Research Showcase; March 22 4.2: “Catalyzing Collaboration Between Industry and Academia in the Life Sciences: Regenerative Medicine-Stem Cells,” March 23, BAXTER HEALTHCARE CORPORATION, Deerfield, Illinois 5. Job/Fellowship opportunities 5.1: NO notices received 6. Life on the Outside 6.1: Discovery Park Team to support March of Dimes **************** 1. Announcements **************** 1.1: All BNC cleanroom and laboratory users: The once a semester mandatory safety and procedures meeting will be held March 19, 6:00pm, and March 20, 7:00pm, in Burton Morgan Room 121 – the large conference room on the first floor. Due to safety updates and information that must be provided to all users of the BNC facilities, attendance at ONE of these two meetings is required. To accommodate schedules to the best of our abilities, we have scheduled the meetings on Monday and Tuesday evening. To retain your access privileges to the cleanroom and/or laboratories, you MUST attend one of these meetings. Thank you for your cooperation. 1.2: Equipment scheduling, billing, and logging for BNC Cleanroom: John Coy announces that the Coral Software System will go online April 2, 2007 to handle equipment scheduling, billing, and logging for the BNC cleanroom. Coral will replace all paper billing sheets and the current reservation system. It is setup such that each user working on a project(s) can have one or more accounts to charge equipment time against. Faculty members need to complete an on-line web form in order to add students to the system. The web address is: https://engineering.purdue.edu/NANO/CORAL <file://localhost/NANO/CORAL> The form will ask for: Account name (i.e., NSF, DARPA, etc.) Account number (i.e., old-style account numbers 521-1211-1234 or OnePurdue-style account numbers 41040000 008000012345) Account Code (constructed using your initials and 01-99; i.e., TDS01, TDS02) For each student, input a Project name (i.e., MEMS, CMOS) accounts they can charge against. Please have the form completed by March 21, 2007 so your students will have access to the cleanroom starting April 2, 2007. Contact John Coy with any questions (jcoy@purdue.edu; 43480) 1.3: Heads Up: Cleanroom Preventive Maintenance scheduled for May 1-2, 2007 A scheduled shut down of cleanroom operations for 48 hours to complete a six-month preventive maintenance procedure will take place on Tuesday (1-May-07) at 7:00AM through Wednesday (2-May-07) at 5:00PM. Maintenance is required for our cleanroom makeup air handlers, chemical exhaust, and ultra pure water systems. Please note that the ultra pure water will be shut down for the entire building. We will also complete cleanroom troubleshooting to improve temperature repeatability during this time. Since the chemical exhaust system will be shut down please remove chemicals from all hoods in the cleanroom prior to the shutdown. If not, lab staff will dispose of them for you. Thank you for your understanding and patience during this necessary procedure. If you have any questions or concerns, please contact MARK VOORHIS, 43036; mvoorhis@purdue.edu. 1.4: Visitor Safety Glasses: a new program per John Weaver and Ira Young. New safety glasses have been purchased and distributed for use by visitors coming into the laboratories. To distinguish them from the regular safety glasses that normal occupants of the laboratories use, we purchased brightly colored (red, white, blue) glasses. These are for VISITOR use only — please do not take these glasses for your personal use. We want to ensure that they are available for visitors, so if you lend a pair to a visitor, please put them back in the holder when the visitor leaves. **************** 2. Awards/Honors **************** 2.1: Supriyo Datta, Thomas Duncan Distinguished Professor of Electrical and Computer Engineering, and Sayeef Salahuddin, PhD student in Supriyo Datta’s Group, have recently been awarded the Focus Center Research Program (FCRP) inventor recognition award. The FCRP is designed to expand pre-competitive, cooperative, long-range applied microelectronics research at US universities. Each Focus Center targets research in a particular area of expertise. In addition to strengthening ties between industry and the university research community, this model concentrates resources on the areas of microelectronics research that are critical in maintaining industry growth. ************************ 3. Seminar Announcements ************************ 3.1: “Piezoelectric Transducers – Strain Sensing and Energy Harvesting,” by Toshikazu Nishida, Interdisciplinary Microsystems Group, Department of Electrical and Computer Engineering, U of Florida, March 19, 11:00, BRK 2001 Acoustic pressure or mechanical force sensing via piezoelectric coupling is closely related to the harvesting of electrical energy from acoustical and mechanical energy sources. In this talk, mesoscale and microscale piezoelectric transducers for acoustic and vibrational sensing and energy harvesting will be discussed. For example, a micromachined piezoelectric microphone has been developed for aeroacoustic applications with a demonstrated sensitivity of 0.75 μV/Pa, a dynamic range greater than six orders of magnitude (47.8 - 169 dB, ref. 20 μPa), and a resonant frequency of 50.8 kHz. In addition, acoustic energy harvesting has been demonstrated using a mesoscale (~ 2 cm) Helmholtz resonator machined in aluminum, delivering 25 mW to a resistive load at a sound pressure level (SPL) of 152 dB (ref. 20 μPa). This acoustic energy may be used to locally power a wireless active liner for suppression of engine noise in turbofan engines, where acoustic levels typically reach up to 150 dB. For space-constrained applications, a micromachined acoustic energy harvester was also recently developed. It employed a silicon-micromachined, circular, piezoelectric composite diaphragm. Experimental results indicated a maximum output power density of 0.34 μW/cm2 at 149 dB (ref. 20 μPa) and a potential output power density of 250 μW/cm2 with an improved fabrication process. Similar examples will be given for cantilever-based vibrational energy harvesters. Finally, some system considerations will be discussed for energy harvesting-powered systems. As the volume of the energy harvester is reduced, as expected, the harvestable power decreases given a specific power density for the available ambient conditions and material parameters. For system designs, the power balance between average power dissipation and average power harvesting determines the maximum duty cycle possible under specific energy harvesting conditions. BIO: Toshikazu (Toshi) Nishida is currently an Associate Professor in the Department of Electrical and Computer Engineering (ECE) and an Affiliate Associate Professor in the Department of Mechanical and Aerospace Engineering (MAE) at the U of Florida, Gainesville. He is a founding member of the Interdisciplinary Microsystems Group at the University of Florida. His research interests include solid-state physical sensors and actuators, transducer noise, strained semiconductor devices, and reliability physics of semiconductor devices. He and his students are currently investigating strain effects in piezoresistive microelectromechanical systems (MEMS) transducers and advanced CMOS devices, noise mechanisms in piezoresistive MEMS transducers, MEMS piezoelectric transducers for vibrational energy reclamation, MEMS capacitive microphones, and biomedical applications of MEMS. He received his PhD in 1988, an MS degree in Electrical and Computer Engineering, and a BS degree in Engineering Physics at the U of Illinois at Urbana-Champaign. With colleagues and students, he has received three best paper awards. He also received the 2003 College of Engineering Teacher of the Year award. He holds four US patents. 3.2: NCN/INAC Tutorial Lecture: “Nanoscale Antenna Apertures,” by Xianfan Xu, Professor, School of Mechanical Engineering, Purdue University, Wednesday, March 21, 2:00PM, EE 317 ABSTRACT: This presentation will discuss light concentration and enhancement in nanometer-scale ridge aperture antennas. Resent research, including numerical simulations and near field optical measurements has demonstrated that nanoscale ridge antenna apertures can concentrate light into nanometer domain. More importantly, these ridge antenna apertures also provide enhanced optical transmission several orders of magnitude higher than regularly shaped nano-apertures. We will discuss fundamental theories of ridge antenna apertures, finite-difference time-domain (FDTD) calculations for optimizing the design of these antenna apertures, and near field scanning optical microscope (NSOM) measurements of the near field intensity distribution of the light transmitted through these apertures. It is shown that the nanoscale antenna apertures can produce a concentrated light spot beyond the diffraction limit with enhanced transmission. Potential applications of these nanoscale aperture antennas include nano-lithography and nano-imaging. Note: this seminar is being taped for the nanoHUB's Nanotechnology 501 Seminar Series at http://www.nanohub.org/education/nanotechnology501 <http://www.nanohub.org/education/nanotechnology501> BIO: Xianfan Xu is a Professor of Mechanical Engineering at Purdue University. He obtained his MS (1991) and PhD (1994) degrees in Mechanical Engineering from the University of California, Berkeley. His current research is on laser based micro- and nano-engineering, including nanoscale laser machining/lithography, development of optical MEMS and NEMS, and near field nano-optics. 3.3: “CMOS-Nano Hybrid Technology: A nanoFPGA-related study,” by Dr. Wei Wang, Electrical and Computer Engineering, IUPUI, Wednesday, March 21, 3:30PM, POTR 234 (Fu Room) [Refreshments at 3:00PM] ABSTRACT: The future of the hundred billion dollar semiconductor industry relies on radical innovations of nanoelectronics. Instead of completely replacing CMOS technology, the non-conventional nanotechnologies are expected to be hybrid with the CMOS systems. The CMOS-nano hybrid technology tries to utilize the advantages of both traditional CMOS and novel nanowire/nanotube devices, which will enhance IC performances in the near future and create breakthroughs in the long run. In this talk, based on hybrid technologies, new interconnections, devices, and reconfigurable structures will be discussed with respect to future FPGA design technologies. BIO: Dr. Wei Wang received his PhD degree in 2002 from Concordia University, Montreal, QC, Canada, in Electrical and Computer Engineering. From 2000 to 2002, he served as an ASIC and FPGA design engineer in EMS technologies, Montreal, QC, Canada. From 2002 to 2004, he was an assistant professor in the Department of Electrical and Computer Engineering, the University of Western Ontario, London, ON, Canada. Since Nov. 2004, he has been an assistant professor in the Department of Electrical and Computer Engineering, Indiana University - Purdue University Indianapolis. His main research interests are nanoelectronics, FPGA, cryptography, digital design, and computer arithmetic. He has over 60 journal and conference papers and one US patent pending. He received Canadian Foundation of Innovation Award (nanoelectronics) in 2004, IUPUI Research Initiative Award (nanoelectronics) in 2005 and Best Paper Award from IEEE CCECE conference in 2005. 3.4: RCHE Brownbag Lunch Series: “Engineering a Policy-Based System for Federated Healthcare Databases,” by Arjmand Samuel, Electrical and Computer Engineering, Purdue University; March 23, 11:30, MRGN 206 ABSTRACT: Policy-based systems for federated healthcare systems have recently gained increasing attention due to strict privacy and disclosure rules. While the work on privacy languages and enforcement mechanisms, such as Hippocratic databases, has advanced our understanding of designing privacy-preserving policies for healthcare databases, the need to integrate these policies impractical healthcare framework is becoming acute. Additionally, while most work in this area has been organization-oriented dealing with exchange of information between healthcare organizations (such as referrals), the requirements for the emerging area of personal healthcare information management have so far not been adequately addressed. These shortcomings arise from the lack of a sophisticated policy specification language and enforcement architecture that can capture the requirement for (i) integration of privacy and disclosure policies with well-known healthcare standards used in the industry in order to specify the precise requirements of a practical healthcare system, and (ii) provision of ubiquitous healthcare services to patients using the same infrastructure that enables federated healthcare management for organizations. In this paper, we have designed a policy-based system to mitigate these concerns. One, we have designed our disclosure and privacy policies using a requirements specification based on a set of use cases for the Clinical Document Architecture (CDA) standard proposed by the community. We have shown that our policy specification language is effective in terms of being able to handle the most common use cases. Two, we present a context-aware policy specification language that allows encoding of CDA-based requirements use-cases into privacy and disclosure policy rules. Our language enables specification and enforcement of privacy-aware access control for federated healthcare information across organizational boundaries, while the use of contextual constraints allows the incorporation of user and environment context in the access control mechanism for personal healthcare information management. Moreover, the declarative syntax of the policy rules makes the policy highly reconfigurable and adaptable to changes in privacy regulations or patient preferences. We also present an enforcement architecture for the federated healthcare framework proposed in this paper. 3.5: Materials Science and Engineering Seminar: “Damage to Concrete by Crystallization of Ice,” by George W. Scherer, Princeton University, Friday, March 23, 3:30; MSEE B012 ABSTRACT: Frost damage to concrete has been attributed to hydraulic pressure, resulting from the increase in volume as water transforms to ice, and to crystallization pressure exerted by ice confined in mesopores. We will discuss the evidence for each mechanism, and examine the circumstances under which one or the other may predominate. The role of crystallization pressure is clear in dilatometric experiments showing contraction of air-entrained concrete during freezing, as ice in larger pores sucks liquid from the surrounding mesopores, and the negative pore pressure induces shrinkage of the body. If the temperature is low enough to permit the ice to propagate through the pores, the release of heat of fusion raises the temperature of the water toward the melting point, which results in the formation of dendrites. The nature of dendritic growth in a porous medium is different from that in a free liquid, because the size of the dendrite and its radius of curvature are strongly influenced by the pore structure. A different type of damage occurs when a layer of ice forms on the surface of concrete, such as a sidewalk. The familiar damage pattern, which exposes the aggregate in the concrete, shows a mysterious dependence on the concentration of deicing salt: there is no damage if there is no salt in the water, or if there is a lot (> 5%), but the damage is severe at concentrations around 3%. This behavior can be understood in terms of the fracture mechanics of ice. BIO: George W. Scherer received his BS and MS degrees in 1972 and his PhD in materials science in 1974, all from MIT, where his thesis work was on crystal growth in glass. From 1974 to 1985, he was at Corning Glass Works, where his research included optical fiber fabrication, viscous sintering, and viscoelastic stress analysis. The latter work was the subject of his first book, Relaxation in Glass and Composites (Wiley, 1986). From 1985 through 1995, he was a member of the Central Research Dept. of the DuPont Company, where his work dealt principally with sol-gel processing, and especially with drying. In collaboration with Jeff Brinker of Sandia National Labs, he wrote a book entitled Sol-Gel Science (Academic Press, 1990). In addition, he is the author of ~220 papers on glass, sol-gel science, and cementitious materials, and holds 10 US patents. He has received the Morey, Purdy, Brunauer, and Sosman Awards from the ACerS, and the Iler Award from the American Chemical Society. In 1997 he was elected to the National Academy of Engineering. In February, 1996, he became a full professor in the Department of Civil & Environmental Engineering at Princeton University, and a member of the Princeton Materials Institute. His research involves mechanisms of deterioration of concrete and stone, particularly by crystallization of ice and salts in the pores. ************************ 4. Workshops/Conferences ************************ 4.1: Center for the Environment (C4E) Graduate Research Showcase; March 22; Keynote: “Environmental Problem Solving in the Future – The Challenge of Integrating Disciplines” by David Ullrich, Executive Director of the Great Lakes and St. Lawrence Cities Initiative The Center for the Environment is pleased to invite everyone with an interest in working in environmental discovery, learning, and engagement to participate in the 2007 Environmental Graduate Research Showcase and Seminar to be held on March 22, 2007 in Stewart Center. The goal of this symposium is to promote awareness of environmental research at Purdue and to foster and encourage idea and information exchange among members of university and other stakeholders. Thursday March 22 9:00-1:00: Poster set up; STEW 302 & 306 1:00-2:00: Keynote: David Ullrich, Executive Director of the Great Lakes and St. Lawrence Cities Initiative; C4E I2P Team award presentation; STEW 214 A & B 2:00-4:00: Poster presentations (refreshments provided); STEW 302 & 306 4:00-4:15: Poster award presentation; STEW 302 & 306 4:15-5:00: Poster tear down and removal 4.2: “Catalyzing Collaboration Between Industry and Academia in the Life Sciences: Regenerative Medicine-Stem Cells,” March 23, BAXTER HEALTHCARE CORPORATION, Deerfield, Illinois An on-going forum that brings life science researchers from universities and business together to exchange ideas, discuss challenges, and explore potential collaborations to promote commercialization. At this forum, problems will be addressed that need solving and opportunities will be explored to move research from the bench to the bedside for the greater public good. This forum is the second in a series of collaborations between Midwest area universities, biotechnology, and healthcare/pharmaceutical firms. The forum provides a unique combination of presentations, roundtable discussions, and networking. Specific Topics of the Regenerative Medicine-Stem Cells Forum include: clinical and therapeutic applications and new research methodologies and platform technologies Register at http://www.surveymonkey.com/s.asp?u=442073239758 Invited companies include Abbott, Baxter, Takeda, TAP, Eli Lilly, Ovation Pharmaceuticals, and Advanced Life Sciences. Break new ground with an innovative means of bringing industry and academia closer together. If you have questions, contact Jane Fischer of Baxter Healthcare Corporation at 847-948-3287, or jane_fischer@baxter.com. ******************************** 5. Fellowship/Job Opportunities ******************************** 5.1: No notices received ******************************** 6. Life on the Outside ******************************** 6.1: Discovery Park Team to support March of Dimes: Janessa Drake, team captain. The 2007 theme is “Making Strides for a Brighter Future.” Several activities will take place with the major activity being “Walk America,” which is scheduled for April 28, 2007. The Discovery Park Team had eight participants who raised $1,067.25 last year. This year’s team goals are to have 15 participants and to raise $1,500.00. Please contact Janessa Drake, Birck Business Office, if would like to walk or make a donation. Statistically, there are some very interesting details about March of Dimes: Every day in the US 1,300 babies are born prematurely and 411 babies are born with birth defects and, in Indiana, each week 23 babies die before their first birthday. Deborah S. Starewich Administrative Assistant to Timothy D. Sands, Director Birck Nanotechnology Center Purdue University 765-494-3509 dstarewi@ecn.purdue.edu http://www.nano.purdue.edu/