Bridge Linking Engineering and Society
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History of Refractive Surgery
History of Refractive Surgery Refractive surgery corrects common vision problems by reshaping the cornea, the eye’s outermost layer, to bend light rays to focus on the retina, reducing an individual’s dependence on eye glasses or contact lenses.1 LASIK, or laser-assisted in situ keratomileusis, is the most commonly performed refractive surgery to treat myopia, hyperopia and astigmatism.1 The first refractive surgeries were said to be the removal of cataracts – the clouding of the lens in the eye – in ancient Greece.2 1850s The first lensectomy is performed to remove the lens 1996 Clinical trials for LASIK begin and are approved by the of the eye to correct myopia.2 Food & Drug Administration (FDA).3 Late 19th 2 Abott Medical Optics receives FDA approval for the first Century The first surgery to correct astigmatism takes place. 2001 femtosecond laser, the IntraLase® FS Laser.3 The laser is used to create a circular, hinged flap in the cornea, which allows the surgeon access to the tissue affecting the eye’s 1978 Radial Keratotomy is introduced by Svyatoslov Fyodorov shape.1 in the U.S. The procedure involves making a number of incisions in the cornea to change its shape and 2002 The STAR S4 IR® Laser is introduced. The X generation is correct refractive errors, such as myopia, hyperopia used in LASIK procedures today.4 and astigmatism.2,3 1970s Samuel Blum, Rangaswamy Srinivasan and James J. Wynne 2003 The FDA approves the use of wavefront technology,3 invent the excimer laser at the IBM Thomas J. Watson which creates a 3-D map of the eye to measure 1980s Research Center in Yorktown, New York. -
LASIK Comes to Sankara Nethralaya
November 1997-March 1998 Sankara Nethralaya Number 17 & 18 CHANGE AND CONTINUITY Dr. T.S. Surendran, Assistant Medical Director will soon become Medical Director, Medical Research Foundation, Dr. S. S. Badrinath who has been the Medical Director of the institution since its inception in 1978 will become the Chief Executive of the organization. After 19 years of single minded service to the organization, Dr.S.S.Badrinath, Founder and Medical Director of Medical Research Foundation will be retiring from his present post on 24 February, 1998. Dr.T.S,Surendran, his successor, has been with the institution since 1979 and has served as Assistant Medical Director since 1990. He has qualified with a graduate degree in hospital administration from BITS, Pilani (in association with CMC, Vellore and Tulane University, USA). Dr. S.S.Badrinath as Chief Executive will continue to be associated with all the activities of Sankara Nethralaya. Free from the chores of the day to day running of the hospital, he will be more involved in teaching and research areas besides continuing to take a deep interest in patient care and planning the future direction of the institution. Dr.S.S.Badrinath will be handing over the post of Medical Director to make way for the younger Dr.T.S.Surendran, Being actively involved in the administration of the hospital for the past 7 years, Dr.Surendran will bring to his new post a wealth of experience in hospital management. Change amidst continuity will foster the further growth and development of the institution into the 21st century. ISO 9002 for Sankara Nethralaya Finally we have it. -
Excimer Laser Surgery: Laying the Foundation for Laser Refractive Surgery
RC25286 (WAT1205-066) May 23, 2012 Physics IBM Research Report Excimer Laser Surgery: Laying the Foundation for Laser Refractive Surgery James J. Wynne IBM Research Division Thomas J. Watson Research Center P.O. Box 218 Yorktown Heights, NY 10598 USA Research Division Almaden - Austin - Beijing - Cambridge - Haifa - India - T. J. Watson - Tokyo - Zurich LIMITED DISTRIBUTION NOTICE: This report has been submitted for publication outside of IBM and will probably be copyrighted if accepted for publication. It has been issued as a Research Report for early dissemination of its contents. In view of the transfer of copyright to the outside publisher, its distribution outside of IBM prior to publication should be limited to peer communications and specific requests. After outside publication, requests should be filled only by reprints or legally obtained copies of the article (e.g. , payment of royalties). Copies may be requested from IBM T. J. Watson Research Center , P. O. Box 218, Yorktown Heights, NY 10598 USA (email: [email protected]). Some reports are available on the internet at http://domino.watson.ibm.com/library/CyberDig.nsf/home . Essay for Centennial History of The Optical Society of America 5/21/12 – JJ Wynne Excimer Laser Surgery – Laying the Foundation for Laser Refractive Surgery James J. Wynne, Ph. D. The discovery of excimer laser surgery On November 27, 1981, the day after Thanksgiving, Dr. Rangaswamy Srinivasan brought leftovers from his Thanksgiving dinner into the IBM Thomas J. Watson Research Center, where he irradiated turkey cartilage with ~10-nsec pulses of light from an argon fluoride (ArF) excimer laser. -
April Meeting Goes Mile-High in 2004 Highlights New Techniques For
January 2004 Volume 13, No. 1 NEWS http://www.physics2005.org A Publication of The American Physical Society http://www.aps.org/apsnews April Meeting Goes Junior Members Respond to Mile-High in 2004 APS Ethics Survey By Ernie Tretkoff The “Mile High” city of Denver, International Affairs, Colorado, will host as many as History of Physics, and Few physicists received for- to include not just research mis- 1500 physicists at the 2004 APS Graduate Student Af- mal ethics training as part of their conduct such as data fabrication, April meeting, to be held May 1-4 fairs; and the Topical education, though many are con- falsification, and plagiarism, but 2004. Groups on Few-Body cerned about professional ethics, also issues such as authorship, Attendees will be drawn from a Systems, Precision a study by the APS Ethics Task proper credit of previous work, wide range of research areas. APS Measurement and Force has found. and data handling and reporting. units represented at the meeting Fundamental Con- Photo Credit: The Denver Metro Convention and Visitors Bureau The task force report was sub- “This was an interesting and include the Divisions of Astrophys- stants, Gravitation, Denver has the 10th largest downtown in America. mitted to and accepted by the sobering project,” said task force ics, Nuclear Physics, Particles and Plasma Astrophysics, APS Council at its meeting in chair Frances Houle of the IBM Fields, Plasma Physics, and Com- and Hadronic Physics. approximately 45 invited sessions. November. Almaden Research Center in San putational Physics; the Forums on The scientific program will fea- There will also be numerous con- The task force, which was con- Jose. -
Resume of Zeng Yuping 20180109 for Publishing on Website
Curriculum Vitae Name Yuping Zeng Degree PhD DOB 12/02/1979 Visa Permanent Gender Female E-mail [email protected] Status Resident (U.S.) Mailing Address: Current Affiliation 139 The Green, Evans Hall 140 Assistant Professor Department of ECE Department of ECE University of Delaware University of Delaware Newark, DE 19716 Cell Phone: 510-610-2894 Office Phone: 302-831-3847 Projects Involved and Achievements Ø 34 peer-reviewed journal papers and 16 papers at international conferences; Ø Postdoctoral Research (2011-2016) in UC Berkeley Design and fabrication of InAs/AlSb/GaSb Tunneling Field Effect Transistors; High speed InAs Metal Oxide Semiconductor Field Effect transistors on Silicon (MOSFETs); InAs-on-Si fin field effect transistors (FinFETs) Ø PhD Research (2004-2011) in Swiss Federal Institute of Technology Design and fabrication of high-speed InP/GaAsSb Double-Heterojunction Bipolar Transistors (DHBTs) with record fT and fMAX cut-off frequencies Ø PhD Research (2003-2004) in Simon Fraser University High-speed photodetector; High Electron Mobility Transistors (HEMTs) Ø Second Master Research (2001-2003) in National University of Singapore Raman study of laser annealed silicon and photoluminecence from nano-scaled silicon Ø First Master Research (1998-2001) in Jilin University Fabrication of development of Superluminescent Light Emitting Diode (SLED): InGaAsP/InP and GaAlAs/GaAs Ø Bachelor Research (1994-1998) in Jilin University Mode Analysis of VCSEL with Fiber Gratings as its Distributed Bragg Reflector (DBR) 1 Education Swiss Federal -
Professor Helen Quinn
Professor Helen Quinn Helen Quinn was born in Australia and grew up in the Melbourne suburbs of Blackburn and Mitcham. She attended Tintern Girls Grammar School in Ringwood East. She matriculated successfully and obtained a cadetship from the Australian Department of Meteorology to fund her studies at the University of Melbourne. After beginning her undergraduate studies at the University, her family migrated to San Francisco in the early 1960s. Professor Quinn finished her undergraduate, and eventually graduate education at Stanford University. After receiving her doctorate from Stanford in 1967, she held a postdoctoral position at Deutsches Elektronen Synchrotron in Hamburg, Germany, then served as a research fellow at Harvard in 1971, joining the faculty there in 1972. She returned to Stanford in 1976 as a visitor on a Sloan Fellowship and joined the staff at the Stanford Linear Accelerator Centre (SLAC) in 1977. In her current position as a theoretical physicist at the Stanford Linear Accelerator Center (SLAC), Professor Quinn has made important contributions towards unifying the strong, weak and electromagnetic interactions into a single coherent model of particle physics. In 2000 she was awarded the Dirac Medal and Prize for pioneering contributions to the quest for a unified theory of quarks and leptons and of the strong, weak, and electromagnetic interactions. The award, shared with Professors Howard Georgi of Harvard and Jogesh Pati of the University of Maryland, recognized Professor Quinn for her work on the unification of the three interactions, and for fundamental insights about charge-parity conservation. She has also recently developed basic analysis methods used to search for the origin of particle-antiparticle asymmetry in nature. -
Highlights Se- Mathematics and Engineering— the Lead Signers of the Letter Exhibit
June 2003 NEWS Volume 12, No.6 A Publication of The American Physical Society http://www.aps.org/apsnews Nobel Laureates, Industry Leaders Petition April Meeting Prizes & Awards President to Boost Science and Technology Prizes and Awards were presented to seven- Sixteen Nobel Laureates in that “unless remedied, will affect call for “a Presidential initiative for teen recipients at the Physics and sixteen industry lead- our scientific and technological FY 2005, following on from your April meeting in Philadel- ers have written to President leadership, thereby affecting our budget of FY 2004, and focusing phia. George W. Bush to urge increas- economy and national security.” on the long-term research portfo- After the ceremony, ing funding for physical sciences, The letter, which is dated April lios of DOE, NASA, and the recipients and their environmental sciences, math- 14th, also indicates that “the Department of Commerce, in ad- guests gathered at the ematics, computer science and growth in expert personnel dition to NSF and NIH,” that, Franklin Institute for a engineering. abroad, combined with the di- “would turn around a decade-long special reception. The letter, reinforcing a recent minishing numbers of Americans decline that endangers the future Photo Credit: Stacy Edmonds of Edmonds Photography Council of Advisors on Science and entering the physical sciences, of our nation.” The top photo shows four of the five women recipients in front of a space-suit Technology report, highlights se- mathematics and engineering— The lead signers of the letter exhibit. They are (l to r): Geralyn “Sam” Zeller (Tanaka Award); Chung-Pei rious funding problems in the an unhealthy trend—is leading were Burton Richter, director Michele Ma (Maria-Goeppert Mayer Award); Yvonne Choquet-Bruhat physical sciences and related fields corporations to locate more of emeritus of SLAC, and Craig (Heineman Prize); and Helen Edwards (Wilson Prize). -
Digital Communication Systems 2.2 Optimal Source Coding
Digital Communication Systems EES 452 Asst. Prof. Dr. Prapun Suksompong [email protected] 2. Source Coding 2.2 Optimal Source Coding: Huffman Coding: Origin, Recipe, MATLAB Implementation 1 Examples of Prefix Codes Nonsingular Fixed-Length Code Shannon–Fano code Huffman Code 2 Prof. Robert Fano (1917-2016) Shannon Award (1976 ) Shannon–Fano Code Proposed in Shannon’s “A Mathematical Theory of Communication” in 1948 The method was attributed to Fano, who later published it as a technical report. Fano, R.M. (1949). “The transmission of information”. Technical Report No. 65. Cambridge (Mass.), USA: Research Laboratory of Electronics at MIT. Should not be confused with Shannon coding, the coding method used to prove Shannon's noiseless coding theorem, or with Shannon–Fano–Elias coding (also known as Elias coding), the precursor to arithmetic coding. 3 Claude E. Shannon Award Claude E. Shannon (1972) Elwyn R. Berlekamp (1993) Sergio Verdu (2007) David S. Slepian (1974) Aaron D. Wyner (1994) Robert M. Gray (2008) Robert M. Fano (1976) G. David Forney, Jr. (1995) Jorma Rissanen (2009) Peter Elias (1977) Imre Csiszár (1996) Te Sun Han (2010) Mark S. Pinsker (1978) Jacob Ziv (1997) Shlomo Shamai (Shitz) (2011) Jacob Wolfowitz (1979) Neil J. A. Sloane (1998) Abbas El Gamal (2012) W. Wesley Peterson (1981) Tadao Kasami (1999) Katalin Marton (2013) Irving S. Reed (1982) Thomas Kailath (2000) János Körner (2014) Robert G. Gallager (1983) Jack KeilWolf (2001) Arthur Robert Calderbank (2015) Solomon W. Golomb (1985) Toby Berger (2002) Alexander S. Holevo (2016) William L. Root (1986) Lloyd R. Welch (2003) David Tse (2017) James L. -
Curriculum Vitae of Changyuan YU DE603, Dept. of Electronic And
Curriculum Vitae of Changyuan YU DE603, Dept. of Electronic and Information Engineering The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Tel: +852 2766 6258 Fax: +852 2362 8439 E-mail: [email protected] KEY QUALIFICATIONS: • Research on photonics, including integrated optical devices, fiber-optical devices and subsystems, optical sensors, high-speed WDM optical communication systems and networks, and biomedical instruments EDUCATION: • Ph.D. in Electrical Engineering, Univ. of Southern California, USA, 2005 Dissertation: “Dispersive and Nonlinear Effects in High-Speed Reconfigurable WDM Optical Fiber Communication Systems” (Advisor: Dr. Alan E. Willner) • Master of Science in Electrical & Computer Engineering, Univ. of Miami, USA, 1999 Thesis: “Flat-Top and Non-Diffracting Beam Shaping Using Phase-Only Diffractive Optical Elements” • Bachelor of Science in Applied Physics and Bachelor of Economics in Enterprise Management, Tsinghua Univ., China, 1997 Thesis: “Excitons in Quantum Dot of II-VI Semiconductor” Thesis: “Economic Development of South Korea and Its Enlightenment to China” PROFESSIONAL EXPERIENCE: • Dept. of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong (Tenured Associate/Full Professor,12/2015-present) • Dept. of Electrical and Computer Engineering, National University of Singapore, Singapore (Adjunct Faculty Member, 01/2016-present) • Dept. of Electrical and Computer Engineering, National University of Singapore, Singapore (75% Founding Leader of Photonic System Research Group, 12/2005-12/2015) • A*STAR Institute for Infocomm Research, Singapore (25% Joint Senior Scientist, 12/2005-12/2015) • National University of Singapore Graduate School for Integrative Sciences and Engineering (Ph.D. Supervisor, 07/2011-12/2015) • Dept. of Electrical and Electronic Engineering, University of Melbourne, Australia (Visiting Professor, 05/2007-07/2007) • NEC Labs America (Visiting Researcher, 9/2005-12/2005) • Optical Communications Lab, Dept. -
Principles of Communications ECS 332
Principles of Communications ECS 332 Asst. Prof. Dr. Prapun Suksompong (ผศ.ดร.ประพันธ ์ สขสมปองุ ) [email protected] 1. Intro to Communication Systems Office Hours: Check Google Calendar on the course website. Dr.Prapun’s Office: 6th floor of Sirindhralai building, 1 BKD 2 Remark 1 If the downloaded file crashed your device/browser, try another one posted on the course website: 3 Remark 2 There is also three more sections from the Appendices of the lecture notes: 4 Shannon's insight 5 “The fundamental problem of communication is that of reproducing at one point either exactly or approximately a message selected at another point.” Shannon, Claude. A Mathematical Theory Of Communication. (1948) 6 Shannon: Father of the Info. Age Documentary Co-produced by the Jacobs School, UCSD- TV, and the California Institute for Telecommunic ations and Information Technology 7 [http://www.uctv.tv/shows/Claude-Shannon-Father-of-the-Information-Age-6090] [http://www.youtube.com/watch?v=z2Whj_nL-x8] C. E. Shannon (1916-2001) Hello. I'm Claude Shannon a mathematician here at the Bell Telephone laboratories He didn't create the compact disc, the fax machine, digital wireless telephones Or mp3 files, but in 1948 Claude Shannon paved the way for all of them with the Basic theory underlying digital communications and storage he called it 8 information theory. C. E. Shannon (1916-2001) 9 https://www.youtube.com/watch?v=47ag2sXRDeU C. E. Shannon (1916-2001) One of the most influential minds of the 20th century yet when he died on February 24, 2001, Shannon was virtually unknown to the public at large 10 C. -
Extraction of Front and Buried Oxide Interface Trap Densities in Fully
Q32 ECS Solid State Letters, 2 (5) Q32-Q34 (2013) 2162-8742/2013/2(5)/Q32/3/$31.00 © The Electrochemical Society Extraction of Front and Buried Oxide Interface Trap Densities in Fully Depleted Silicon-On-Insulator Metal-Oxide-Semiconductor Field-Effect Transistor Jen-Yuan Cheng,z Chun Wing Yeung, and Chenming Hu Department of Electrical Engineering and Computer Science, University of California, Berkeley, Berkeley, California 94720, USA In this letter, a method is proposed and demonstrated for the first time to characterize and decouple the interface traps of both the front- and back channels of fully-depleted silicon-on-insulator (FD-SOI) metal-oxide-semiconductor field-effect transistor (MOSFET). We report the procedure and the underlying theory that allows the extraction of the energy profiles of the densities of the interface traps (Dit).This technique will be very useful for evaluating the interface qualities of future FD-SOI transistors. © 2013 The Electrochemical Society. [DOI: 10.1149/2.001305ssl] All rights reserved. Manuscript submitted December 31, 2012; revised manuscript received January 28, 2013. Published February 12, 2013. The fully-depleted silicon on insulator (FD-SOI) ultra-thin body channels in FD-SOI, the corresponding surface potentials for front 1–3 UTBSOI MOSFET is gaining new attention as an alternative tech- and back channel interface φsF and φsB with respect to the applied nology to FinFET4 for ultra-low power and mobile applications be- front and back bias can be expressed as follows19,20 cause of its outstanding -
Network Information Theory
Network Information Theory This comprehensive treatment of network information theory and its applications pro- vides the first unified coverage of both classical and recent results. With an approach that balances the introduction of new models and new coding techniques, readers are guided through Shannon’s point-to-point information theory, single-hop networks, multihop networks, and extensions to distributed computing, secrecy, wireless communication, and networking. Elementary mathematical tools and techniques are used throughout, requiring only basic knowledge of probability, whilst unified proofs of coding theorems are based on a few simple lemmas, making the text accessible to newcomers. Key topics covered include successive cancellation and superposition coding, MIMO wireless com- munication, network coding, and cooperative relaying. Also covered are feedback and interactive communication, capacity approximations and scaling laws, and asynchronous and random access channels. This book is ideal for use in the classroom, for self-study, and as a reference for researchers and engineers in industry and academia. Abbas El Gamal is the Hitachi America Chaired Professor in the School of Engineering and the Director of the Information Systems Laboratory in the Department of Electri- cal Engineering at Stanford University. In the field of network information theory, he is best known for his seminal contributions to the relay, broadcast, and interference chan- nels; multiple description coding; coding for noisy networks; and energy-efficient packet scheduling and throughput–delay tradeoffs in wireless networks. He is a Fellow of IEEE and the winner of the 2012 Claude E. Shannon Award, the highest honor in the field of information theory. Young-Han Kim is an Assistant Professor in the Department of Electrical and Com- puter Engineering at the University of California, San Diego.