FlexibleElectronics with NanoManufacturing

The 2008 International Conference on Intelligent Robotics and Applications (ICIRA 2008) was the first event in this conference series. These two volumes constitute the refereed proceedings of the First International Conference on Intelligent Robotics and Applications, ICIRA 2008, held in Wuhan, China, in October 2008. In this conference, I acted as a secretary-general.

After the success of the inaugural conference, the purpose of the 2nd International Conference on Intelligent Robotics and Applications (16 - 18 December, 2009, Orchard Hotel, Singapore) is to provide a venue where researchers, scientists, engineers and practitioners throughout the world can come together to present and discuss the latest achievement, future challenges and exciting applications of intelligent and autonomous robots.

Two proceedings edited by my group:

Part I: Intelligent Robotics and Applications. Xiong, C., Liu, H., Huang, Y. (et al.) (Eds.), 2008 ... More.

Part II: Intelligent Robotics and Applications. Xiong, C., Liu, H., Huang, Y. (et al.) (Eds.), 2008 ... More

The 265 revised full papers presented were thoroughly reviewed and selected from 552 submissions; they are devoted but not limited to robot motion planning and manipulation; robot control; cognitive robotics; rehabilitation robotics; health care and artificial limb; robot learning; robot vision; human-machine interaction & coordination; mobile robotics; micro/nano mechanical systems; manufacturing automation; multi-axis surface machining; realworld applications.

ICIRA 2008 was advocated by the International Workshop on Robotic Grasping and Fixturing in June 2007, Wuhan, China. Robotics research, however, involves a wide spectrum of research and applications from the first industrial manipulator to Mars rovers, and from surgery robotics to cognitive robotics. Industrial and real-world applications are the force driving the research frontier further forward. The aim of the ICIRA 2008 conference is to promote interactions and collaborations between disciplines, which are beneficial in bringing fruitful solutions to the forefront, and to be an international forum that brings together those actively involved in intelligent robotics and applications.

These volumes of Springer’s Lecture Notes in Artificial Intelligence and Lecture Notes in Computer Science contain papers accepted for presentation at ICIRA 2008, held in Wuhan, China, October 15–17, 2008. The conference received 552 submissions from all over the world, which were subsequently peer refereed by the Program Committee, with the assistance of external referees. Among them, 265 high-quality papers were accepted for presentation at the conference, covering the most active topics on intelligent robotics such as robot cognition, robot learning, robot vision, motion planning, multifingered manipulation and intelligent control. Advances in robotized equipments applied in rehabilitation and medical robotics, health care and artificial limbs, digital manufacturing, electronic manufacturing, and manufacturing automation are also reported. The authors come from the following countries and regions: Australia, Austria, China, France, Germany, Hong Kong, Iran, Italy, Japan, Korea, Malaysia, Poland, Romania, Singapore, Slovakia, Spain, Sweden, Switzerland, Taiwan, UK, and USA. In addition, ICIRA 2008 held a series of plenary talks, where we were fortunate to have such keynote speakers as Peter Luh, Tianmiao Wang, Jiping He, and Jun Wang, who shared their expertise with us in diverse topic areas spanning the range of intelligent robotics and application activities.

1. The Chinese News of ICIRA 2008 can be found at http://www.hust.edu.cn/content/content_25647.html.
2. The vedio of ICIRA 2008 can be browsed at http://tv.hustonline.net/html/2008-10-24/54800.shtml.

This is very important research topics, especiall in space engineering. In these engineering simulation, it usually is long time to get the simulation results. However, the computational errors are obvious effect on the simulation results. So the simplectic algorithm, which is a geometric algorith, is adopted to compute these model. The precise integration method(On precise integration method) is also used to eliminate the errors of the computers.

Usually, DAEs (Differential Algebraic Equation) is the mathematical model of multibody dynamics. It is very difficult to solve this kind of equations by conventional algorithm.

This blog is a review on computational method in multibody dynamics. The main topics are geometric algorithm, which is established based on Hamilton principle. It's well known to us that the geometric integration method of the dynamical system is an attractive direction in the last two decades. Dynamic equations of multibody systems, such as differential equation, differential-algebraic equation, are a kind of representative dynamical systems.

The significance of the transformation from Lagrange framework to Hamilton framework is the configuration transformation from Euclidian to Hamiltonian. Then, the symplectic variable is introduced into the mechanics system, and the symplectic integration method can be adopted to solve the dynamic equations. It is able to predict the qualitative information of the multibody dynamic system which is expected to be kept in the process of discretization. It should be specially emphasized when these qualitative information denotes some pivotal physics meaning. How to establish the Hamiltonian canonical equations of the multibody system (multi-rigid body system without constraint or with holonomic constraint, flexible multibody system) is simply described, and how to build the geometric integral method is emphasized in this paper, especially computational geometric mechanics method with promising application, including high-order symplectic algorithm(synthesized algorithm, Partition-synthesized algorithm, symplectic precise integration algorithm), multi-symplectic algorithm and Lie group algorithm(projected method and located coordination method).

力学进展: http://www.cstam.org.cn/lxjz/qikan/Cpaper/zhaiyao.asp?bsid=2006782

University of Illinois Urbana Champaign(Written by InterNano): Reseachers affiliated with Nano-CEMMS at UIUC and Purdue University have created high-performance Nanonet circuits with many potential areas of application in electronics.
John Rogers, Moonsub Shim, and colleagues have implemented a carbon-based semiconductor consisting of sub-monolayer, random networks of single-walled carbon nanotubes that yields small to medium sized integrated digital circuits. Their "nanonet" technology bypasses a typical flaw in carbon nanotube-based circuitry -- short circuits -- by cutting the nanonet into strips to break the path of metallic nanotubes. By doing so, the researchers were able to produce a flexible circuit containing nearly 100 transistors with excellent mobilities, operating voltages, and switching speeds.
Laboratory work at UIUC was complemented by theory and simulation work conducted at Purdue.

Cao, Q., H. Kim, N. Pimparkar, et al. Medium-scale carbon nanotube thin-film integrated circuits on flexible plastic substrates. Nature 454 (2008) 496-500.

Abstract of this workThe ability to form integrated circuits on flexible sheets of plastic enables attributes (for example conformal and flexible formats and lightweight and shock resistant construction) in electronic devices that are difficult or impossible to achieve with technologies that use semiconductor wafers or glass plates as substrates1. Organic small-molecule and polymer-based materials represent the most widely explored types of semiconductors for such flexible circuitry2. Although these materials and those that use films or nanostructures of inorganics have promise for certain applications, existing demonstrations of them in circuits on plastic indicate modest performance characteristics that might restrict the application possibilities. Here we report implementations of a comparatively high-performance carbon-based semiconductor consisting of sub-monolayer, random networks of single-walled carbon nanotubes to yield small- to medium-scale integrated digital circuits, composed of up to nearly 100 transistors on plastic substrates. Transistors in these integrated circuits have excellent properties: mobilities as high as 80 cm2 V-1 s-1, subthreshold slopes as low as 140 m V dec-1, operating voltages less than 5 V together with deterministic control over the threshold voltages, on/off ratios as high as 105, switching speeds in the kilohertz range even for coarse (approx100-mum) device geometries, and good mechanical flexibility梐ll with levels of uniformity and reproducibility that enable high-yield fabrication of integrated circuits. Theoretical calculations, in contexts ranging from heterogeneous percolative transport through the networks to compact models for the transistors to circuit level simulations, provide quantitative and predictive understanding of these systems. Taken together, these results suggest that sub-monolayer films of single-walled carbon nanotubes are attractive materials for flexible integrated circuits, with many potential areas of application in consumer and other areas of electronics.
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