The 3D positions of more than 23,000 atoms in an iron-platinum nanoparticle with 22 picometer precision (iron atoms in red and platinum atoms in blue). The nanoparticle consists of two large and six small grains with different chemical order, allowing scientists to correlate crystal defects such as grain boundaries with magnetic properties at the single-atom level.
As for the phrase "as far as the eye can see," it turns out to be actually not that much.
This was proven during the 17th century by Robert Hooke, an English physicist architect, and polymath who used a hand-crafted microscope to detail his accounts of plants, insects, and objects. His microscope was so precise that he was able to see individual biological units, which he termed "cells" as he thought the constituent components of a plants resembled monastic cells, the small rooms used by monks in monasteries.
The physical lens had been the standard for use in the detailed study of microscopic organisms since Hooke's seminal work Micrographia was published in 1665. Dr. Jianwei Miao, a professor of Physics and Astronomy and the California NanoSystems Institute at UCLA, blew that standard out of the water with a method known as Coherent Diffractive Imaging (CDI). Read morehere.
First Fridays is coming up this Friday, June 2, from 10:00 am to 12:00 pm in YRL Research Commons (first floor of the library). We always have many retirees sign up, so please send an email to firstname.lastname@example.org if you are available to volunteer.
About First Fridays
First Fridays is a program in which volunteers work one-on-one with retired UCLA staff and faculty to help them with technology. Retirees often need help using their smartphones, downloading an app from the app store, setting up email, or navigating social media. If you own a smartphone and/or laptop, chances are you will be able to answer their questions! This is a great, easy opportunity to give back to the UCLA community!
My laboratory research spans the disciplinary boundaries between micro/nanotechnology, biomaterials, and mechanobiology with an emphasis on their applications to tissue engineering and regenerative medicine. Through the use of multi-scale fabrication and integration tools, my laboratory focuses on the development and application of bio-inspired materials/devices and tissue/organ-on-a-chip technologies for elucidating regenerative biology, drug screening, disease modeling, and stem cell-based therapies. In this talk, I will introduce scalable, nanotopographically-controlled cell and tissue culture models developed in our laboratory, including nanopatterned human 3D cardiac muscle patches, human iPSC-based cardiac microphysiological systems, and a high-throughput drug-induced cardiotoxicity screening assay. Using these biofabricated tools in combination with human pluripotent stem cell technologies, I will highlight how our biomimetic tissue models help to gain a better understanding of the structure-function relationship in complex 3D tissues, and serve as emerging platforms for regenerative cell therapy, disease modeling, and drug screening.
Dr. Deok-Ho Kim is currently an Assistant Professor in the Department of Bioengineering at the University of Washington. He received his Ph.D. degree in Biomedical Engineering from the Johns Hopkins University School of Medicine in 2010. From March 2000 to June 2005, he worked as a Research Scientist at the Korea Institute of Science and Technology (KIST), including his 7 month academic visit to the Swiss Federal Institute of Technology in Zurich (ETH-Zurich). He has authored or co-authored more than 140 peer-reviewed journal and conference papers, 2 books, 11 book chapters, and has 23 patents issued or pending. His papers have been cited over 5,000 times in total (h-index: 37) and have been highlighted in Science Magazine, the JHU Gazette, the UW Today, and many newspapers. Among the awards he has received are the Samsung Humantech Thesis Award (2009), the Harold M. Weintraub Award in Biological Sciences (2010), the Perkins Coie Award for Discovery (2011), the American Heart Association National Scientist Development Award (2012), the BMES-CMBE Rising Star Award (2013), and the BMES-CMBE Young Innovator Award (2015). Dr. Kim is currently an Associate Editor for Biomedical Microdevices, IEEE Transactions on NanoBioscience and IEEE Transactions on Nanotechnology, and serves as a member of the editorial boards of numerous journals including Scientific Reports, Theranostics, International Journal of Nanomedicine, IET Nanobiotechnology, and SLAS Technology.
Friday, June 2
10:30 am - 12:00 pm
Engineering V, Room 2101
I will present an overview of a new research initiative at Northrop Grumman called NG Next. NG Next Basic Research pursues use-inspired fundamental research in laboratories organized across several interdisciplinary thrust areas. My presentation will focus on the Semiconductor and Devices and Nanomaterials groups, and include early results from select research topics. First I'll discuss the large-scale synthesis of few-layered black arsenic phosphorus (AsP) alloys via solid-source molecular beam epitaxy (MBE). Post-growth hermetic passivation and subsequent high-temperature thermal annealing results in crystalline films as verified by Raman spectroscopy and structural metrology. Our method affords precise synthetic control of AsP thin films, resulting in a range of tunable compositions with varying electronic and optical properties. Next I'll discuss additive manufactured phase-changing materials (PCM) by aerosol jet printing. This approach may lead to future cost savings, fast turnaround time, and fully reconfigurable wireless communication, radar and phased array electronics systems. To our knowledge, this is the first reported experimental demonstration of GeTe PCM structures based on additive 3D printing technology.
Vincent Gambin received his Ph.D. from Stanford University in Material Science and Engineering. He is currently leading the New Semiconductors and Devices group in NG Next Basic Research studying new materials and devices for next generation electronics. He is also the principal investigator for DARPA's ICECool Applications program developing high-power GaN MMICs cooled with embedded diamond microfluidics. He's worked at Northrop Grumman for 15 years in the field of high-speed RF electronics developing advanced GaAs, InP, and GaN devices.
Monday, June 5
10:30 am - 11:30 am
Structural control and health monitoring schemes play key roles not only in enhancing the safety and the reliability of infrastructure systems, but also to optimally minimize the life cycle cost and maximize the performance through the full life cycle design under natural disasters. In this paper, an effective strategy is proposed to identify general hysteric behavior of a typical shear structure subjected to external excitations. First, the characteristics of the early version of Bouc-Wen-Baber-Noori (BWBN) model and its parametric physical implications are presented using a single degree of system. The BWBN model was developed in the 1980's and given its versatility and mathematical tractability, as well as its capability in reproducing a large number of nonlinear hysteretic behaviors, over the past decade it has received significant attention of the research community in nonlinear mechanics and hysteretically degrading systems. Subsequently, a time varying shear structure system with BWBN restoring force characteristic is presented for different case studies. By incorporating a "Grey Box" strategy, an Intelligent Parameter Varying (IPV), an Artificial Neural Network (ANN) technique developed by the authors, is introduced to identify the hysteretic behavior of the generalized hysteresis structure using the system identification modeling approach. Genetic algorithm (GA) and Transitional Markov Chain Monte Carlo (TMCMC) based Bayesian Updating framework are also developed to identify this hysteretic structural system. Correlation analysis and algorithm efficiency are further studied to compare and evaluate the system identification results. It is demonstrated that the IPV method is a viable and effective tool for the system identification of highly nonlinear systems and offers promising opportunities for SHM applications.
Mohamad Noori holds a B.S. from the University of Illinois (1977), a M.S. from Oklahoma State University (1980), and a Ph.D. from the University of Virginia (1984), all of which are in Civil Engineering with a concentration in Engineering Mechanics. Noori has supervised over 85 keynote postdoctoral and graduate research projects, has given over 120 keynote and invited lectures, and long with his co-authors, has published over 250 journal and conference scientific journals. Noori has been a member of several NSF delegation teams for US-Japan and US-China Cooperative Research programs and was the founding chair of the ASME Uncertainty and Probabilistics Committee. In 2014, Noori served as the Director of the Sensors Program at the CMMI Division at NSF. Noori worked at WPI from 1984 to 1999 where he served as the J.W. Higgins Professor and the Head of the Mechanical Engineering department. From 1999 to 2005, Noori worked at NC State University as a Reynolds Professor and the Head of the Mechanical and Aerospace Engineering department. Noori has received over $13 million in support of his research from NSF, ONR, NASA, National Sea Grant, and industry (excluding the NIA funding). He also served as the NC State PI and one of 7 colleagues from 6 major universities who prepared a winning proposal to NASA that resulted in the establishment of the National Institute of Aerospace, a unique multi-university research center, in partnership with Langley Research Center; through a 15-year, $390M contract with NASA. In 2005, he joined Cal Poly as the Dean of Engineering where he served until 2010, after which he returned to his passion for teaching and research. Noori's research in modeling complex and nonlinear hysteretic behavior of structural systems (Bouc-Wen-Baber-Noori model) has been widely cited and over the past two decades the BWBN model has been utilized in a wide range of engineering applications, for constitutive modeling, analysis, and response prediction of hysteretic systems and devices. Since 1990, Noori and his collaborators have carried out work in structural health monitoring (SHM). This work has included development of a number of artificial intelligence methods, for damage detection in linear and nonlinear system, as well as feature extraction. Their most recent work is on uncertainty quantification issues in SHM. Noori is a co-author of a two volume upcoming book on the Application of Fiber Optic Sensors in Structural Health Monitoring and also serves as a special advisor to the President of the International Society for Structural Health Monitoring of Intelligent Infrastructure (ISHMII). Noori has received numerous awards for his teaching, research, and professional service. The most recent one includes the ASEE Keating Award for Innovation and Leadership in Lifelong Learning in Graduate Engineering Education. He is an ASME Fellow, has received a JSPS Fellowship, and is a member of Sigma Xi, Pi Tau Sigma, Chi-Epsilon, and Sigma Mu Epsilon honorary societies. Currently, Noori is a professor of mechanical engineering at Cal Poly in San Luis Obispo, CA, has held a visiting scholar position at DPRI, Japan, and currently holds a distinguished visiting chair professorship at a major research institution in China.
Tuesday, June 6
4:15 pm - 5:45 pm
3400 Boelter Hall
After a brief survey of some recent cyberattacks, we discuss how current software development norms have created a system that rewards utility at the cost of stable and secure systems. System attackers and defenders operate on a constantly changing battlefield, and some of the more serious conflicts involving nation-states could be considered acts of war, though we are still in the early stages of defining war in cyberspace. Various policies for security and privacy can vary wildly, and have important consequences for privacy, free speech, and censorship. "Fake news" is a recent addition to this catalog of issues. Things can get even more complicated with the advent of the Internet of Things, where (mostly unsophisticated) users may (think they) have more control. Various ethical issues related to the development of these systems such as bias in artificial intelligence and what harm to choose when harm is unavoidable have only started to be examined. In addition to research opportunities, there are implications for computer science curricula and for college curricula in general that will be discussed.
Professor Lance J. Hoffman is co-Director of the Cyber Security and Privacy Research Institute at the George Washington University (GW) in Washington, D.C., and the author or editor of numerous articles and five books on computer security and privacy. He has pioneered a holistic, multidisciplinary approach to teaching and research in this area. Professor Hoffman developed the first regularly offered course on computer security at the University of California, Berkeley in 1970, after working with the legendary Professor Alan Westin on a National Academy of Sciences project that produced the book Databanks in a Free Society. A Fellow of the Association for Computing Machinery and a member of the Cyber Security Hall of Fame, Dr. Hoffman institutionalized the ACM Conference on Computers, Freedom, and Privacy. He has served on a number of Advisory Committees including those of the Federal Trade Commission, the Department of Homeland Security, and the Center for Democracy and Technology. His research has spanned multiple aspects of cybersecurity, including metrics for secure computer systems, cryptography policy, risk analysis, computer viruses, societal vulnerability, portable security labs, statistical interference for data mining, and privacy/data protection. He is the principal investigator for GW's CyberCorps scholarship program that has produced dozens of cybersecurity experts with degrees in at least ten majors. All have had cross-disciplinary instruction with technology, policy, and management components, including the privacy issues. These graduates have gone on to work for dozens of different organizations. He has testified before Congress on security and privacy-related issues and has listened to testimony on everything from building ordinances to transportation to playground when he was a local elected official.
Friday, June 9
10:30 am - 12:00 pm
Engineering V, Room 2101
In this talk I discuss the close coupling between Material Scientists and Electrical Engineers in designing electron devices. I outline three cases representing increasing levels of interaction between Mat. Sci. and EE to optimize electronic device performance. The first case is simple material selection, where the physics shows that the best material (as defined by a single figure of merit) produces the best electron device. The model device is a magnetoresistive sensor for automative application. In this rare, decoupled case, interaction is low and each discipline optimizes in its own domain. The second case is that of optimizing high speed logic circuits with advanced semiconductors. In this case, device performance is enhanced by band engineering. No single intermediate figure-of-merit (FOM) is sufficient to drive either material or device development. Even more importantly, a feedback loop encompassing material optimization, device optimization, and circuit optimization exists where it is not at all clear at the outset which material structure will produce the fastest circuits. In the final case I describe a situation where artificial constraints are overcome through a material science approach. Transistors of widely differing materials are intimately integrated heterogeneously at the subcircuit or logic gate level to produce leap-ahead differential amplifiers without altering the individual device technologies in any significant way. The complexity of the situation requires extremely close coupling between material scientists and electrical engineering at every stage of the development. A key take-away from these case studies is that enhanced interaction between materials science and electronics design can enlarge the trade-space to optimize electronic functions. This fruitful interaction can (and has) resulted in discontinuous performance improvement in electron devices.
Marko Sokolich is a special consultant at HRL Laboratories LLC (the former Hughes Research Labs) in Malibu, California. He retired as the Deputy Director of the Microelectronics Laboratory at HRL in 2014. He was the HRL program manager for the DARPA sponsored TFAST effort, a program with the goal of developing advanced integrated circuit processors in InP for circuits clocking at ip to 150 GHz. Previously he was the IC Process Engineering Manager at HRL responsible for developing two generations of InP High Speed HBT technology. Prior to that he was the Process Engineering Manager at the Hughes Gallium Arsenide Operations where he was responsible for GaAs MESFET and PHEMT MMIC development and for InSb magnetoresistor development. Dr. Sokolich was awarded the Hughes Aircraft Chairman's Award for innovation in 1998 for transistor design leading to 75 GHz clock rate circuits. Dr. Sokolich has 35 years of experience in the design publications in journals and conference proceedings and holds 18 patents relating to electron devices. He received his B.S. in Engineering Physics and M.S. in Electrical Engineering from the University of California, Berkeley in 1979 and 1982 respectively. He received his Ph.D. from the University of California, Los Angeles in 1989 and an MBA in 1997. He regularly teaches semiconductor device physics at UCLA.
Friday, June 9
11:00 am - 12:00 pm
Liquid handling and actuation by means of controlling surface tension has proven to have many advantages in small-scale applications due to the surface tension force dominance over body forces. In 1875, Lippmann first explored the phenomenon of the surface tension modulated with an electric field, which is called an electrowetting effect. When an electric potential is applied between a liquid and a solid electrode, the charge redistribution modifies the surface tension at the liquid-solid interface where the like-charge repulsion decreases the work by expanding the surface area. Due to the benefits of large forces in micro/meso scales, a fast response time in the range of microseconds, and low-power operation, the electrowetting technology has been used for numerous application, including lab-on-a-chop, electronic display, thermal management, energy harvesting, and surface science.
In this talk, a broad perspective of the electrowetting technology will be presented from materials to its optics and solar applications. A novel high-capacitance dielectric material, called an ion gel, will be first discussed. Not only does it offer 2 to 3 orders higher capacitance than that of conventional dielectrics such as SiO2, but also it is simply fabricated by either a spin or dip-coating method. This high-capacitance ion gel dielectric is used for an electrowetting-driven liquid prism to achieve low-voltage and tunable beam steering performance. We further introduce an arrayed form of the liquid prisms for optics and solar applications such as a tunable Fresnel lens and solar indoor lighting.
Dr Sung-Yong Park is an Assistant Professor in the Department of Mechanical Engineering at National University of Singapore (NUS). Before joining NUS, he was a research scientist at Teledyne Scientific Company (formerly known as Rockwell Science Center) where he led several cutting-edge R&D projects funded by ARPA-E, NASA, and Rockwell Automation. He received his doctoral degree from UCLA in 2010 (advisor: Professor Eric P.Y. Chiou) and was further trained as a post-doctoral researcher at the UCLA Optofluidic Systems Laboratory.
His research interest is generally in the area of optofluidics for energy/water/bio-related applications. He was awarded the 2010 Harry M. Showman Prize, which was given to an outstanding graduating student who has the best academic and research achievements from the 2010 graduates of the Henry Samueli School of Engineering and Applied Science at UCLA. He was also a recipient of the Graduate Student Researcher Scholarship from the UCLA Mechanical Engineering Department in 2006.
Thursday, June 22
9 am to 5 pm
CLICC Classroom C, 320 Powell Library
This workshop is for those who need to learn data manipulation techniques using SAS data and procedure to access, transform, and summarize SAS data sets. The course builds on the concepts that are presented in the Introduction to SAS Programming workshop and is not recommended for beginning SAS software users. In this hands-on workshop, you will learn how to control SAS data set input and output; combine SAS data sets; summarize, read, and write different types of data; perform DO loop and SAS array processing; and transform character, numeric, and data variables. This workshop will be presented by an instructor from SAS. This is the second of two workshops in preparation for the Base SAS Certification examination. Register here.
Monday, June 26 to Friday, June 30
5628 Math Science -- The Portal
Do you have a computational problem that would benefit from using a large scale computing system? Do you need to scale your simulation or data analysis to a Petascale system?
This institute is for people developing, modifying, and supporting research projects who seek to enhance their knowledge and skills to scale software to Petascale and emerging extreme scale computing systems. Participants should have familiarity with Linux, programming in Fortran, C, C++, Python or similar language, and familiarity with MPI (message passing interface). There will be hands-on activities for many of the sessions.
Presentations will be made by faculty and professionals from Argonne Leadership Computing Facility (ALCF), the Blue Waters project at the National Center for Supercomputing Applications (NCSA), National Energy Research Science Computing Center (NERSC), Oak Ridge Leadership Computing Facility (OLCF), Stony Brook University, and the Texas Advanced Computing Center (TACC).
Attend the Institute in person at UCLA-IDRE. Participants will be able to verbally ask questions of the presenters thorough two-way video conferencing facilities. Participants will receive training accounts on the Blue Waters, NERSC, and TACC systems. Staff will be available at each site to assist during hands-on sessions. Seating at each site is limited, and registration is handled on a first-come first-served basis.
The agenda will address the following topics:
MPI - Introduction and advanced topics
Scaling, code profiling, and debugging
The institute is led by Argonne Leadership Computing Facility (ALCF), the Blue Waters project at the National Center for Supercomputing Applications (NCSA), the National Energy Research Scientific Computing Center (NERSC), the Oak Ridge Leadership Computing Facility (OLCF), and the Texas Advanced Computing Center (TACC).
The detail information for the institute is can be found here. Register here.
The goal of the UCLA IDRE Statistical Consulting Group is to help UCLA faculty, staff, and graduate students perform top-notch research, with the greatest emphasis on data analysis related to grants and publications, but also including dissertation research. We provide advice and resources to enable you to develop and/or extend your statistical computing skills, helping you to independently use common statistical packages for the analysis of your research. Current hours for walk-in consulting are Monday-Thursday 12-3 PM.
Walk-in consulting is in Math Sciences 4919. See our online schedule for days and hours.