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Uncertainty in Thermal Basin Modeling: An Interval Finite Element Approach

reliable Computing 2006年第6期12卷 451-470页

作者： Sebastião C. Pereira Ulisses T. Mello Nelson F. F. Ebecken rafi L. Muhanna PETROBRAS R&D Center Rua Jequitibá 950 Cidade Universitária Rio de Janeiro Brazil IBM Thomas J. Watson Research Center Yorktown Heights USA Federal University of Rio de Janeiro Rio de Janeiro Brazil Center for Reliable Engineering Computing (REC) School of Civil & Environmental Engineering Georgia Institute of Technology Savannah USA

Uncertainty assessment in basin modeling and reservoir characterization is traditionally treated by geostatistical methods which are normally based on stochastic probabilistic approaches. In this paper, we present an alternative approach which is based on interval arithmetic. Here, we discuss a fnite element formulation which uses interval numbers rather than real numbers to solve the transient heat conduction in sedimentary basins. For this purpose, a novel formulation was developed to deal with both the special interval arithmetic properties and the transient term in the differential Equation governing heat transfer. In this formulation, the “stiffness” matrix resulting from the discretization of the heat conduction equation is assembled with an element-by-element technique in which the elements are globally independent and the continuity is enforced by Lagrange multipliers. This formulation is an alternative to traditional Monte Carlo method, where it is necessary to run a simulation several times to estimate the uncertainty in the *** have applied the newly developed techniques to a one-dimensional thermal basin simulation to assess their potential and *** also compared the quality of our formulation with other solution methods for interval linear systems of equations.

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Simulation of integrated circuit immunity with LECCS model

Simulation of integrated circuit immunity with LECCS model

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International Zurich Symposium on Electromagnetic Compatibility (EMC Zurich)

作者： K. Ichikawa M. Inagaki Y. Sakurai I. Iwase M. Nagata O. Wada R&D Center DENSO CORPORATION Aichi Japan Graduate School of Science and Technology Kobe University Hyogo Japan Department of Computer and Systems Engineering Kobe University Hyogo Japan Department of Electrical Engineering Graduate School of Engineering Kyoto University Kyoto Japan

We have been developing an LSI model for EMC simulation in electronic control units. EMI simulations have been applied to some units using an LSI EMI model. These models have been called the LECCS Model and ICEM Model, but there are few examples of EMS simulation in printed circuit boards. Therefore , we studied the LSI EMS model and attempted to perform an EMS simulation of a printed circuit board. The LSI was tested through the dPI method (IEC61967-4). The EMS in this test system was analyzed, and the usefulness of this method of analysis was confirmed. The analysis was also applied to a product

关键词： Integrated circuit modeling Large scale integration Circuit simulation Medical services Electromagnetic interference Printed circuits Circuit testing Immunity testing Electromagnetic compatibility System testing

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Fabrication of Protein Chip with Ni-Co Alloy Coated Surface

Fabrication of Protein Chip with Ni-Co Alloy Coated Surface

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IEEE SENSOrS

作者： Yaw-Jen Chang Cheng-Hao Chang Chih-Yu Hu Chia-Chen Liao R&D Center for Membrane Technology Chung Yuan Christian University Chungli Taiwan Chung Yuan Christian University Chung Li TW Department of Mechanical Engineering Chung Yuan Christian University Chungli Taiwan

In this study, a Ni-Co alloy coated protein chip was fabricated by means of electrodepositing nickel and cobalt on the substrate surface. The protein was immobilized on the coated surface by the affinity mechanism of nickel and cobalt which belong to the intermediate metal group. Then, the immunoreaction can be performed on the chip. The results show that the alloy coating belongs to abnormal codeposition of Ni-Co alloy. The proportion of Ni-Co composition will affect the affinity of electroplated layer with protein and, consequentially, influence the results of immunoassay. Thus, in this paper the Taguchi method was adopted to determine the optimal fabrication process of the Ni-Co alloy coated chip using L18 orthogonal array. The experimental factors that affect the performance of abnormal codeposition include the quantity of cobalt, current density of electroplating, operation temperature, and pH of electroplating buffer. The major purpose of this research is the planarization of IMAC technique so that biological molecular can be absorbed on protein chip for further analysis. The advantages of this novel protein chip include good performance, high repeatability, and less cost.

关键词： Fabrication Proteins Immune system Cobalt alloys Nickel alloys Coatings Current density Temperature Planarization Biological information theory

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Piezoresistive Gas Flow Sensors by deep rIE technology

Piezoresistive Gas Flow Sensors by Deep RIE Technology

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IEEE SENSOrS

作者： Young-Tae Lee Kang-Ho Ahn Yong-Taek Kwon Hidekuni Takao Makoto Ishida Department of IT & Electronics Education Andong National University Andong South Korea Mechanical Engineering Hanyang University Seoul South Korea R&D Center HCT Icheon South Korea Intelligent Sensing System Research Center Toyohashi University of Technology Toyohashi Japan

In this paper, we fabricated drag force type gas flow sensor with dry etching technology which used deep rIE (reactive ion etching) and etching stop technology which used SOI (silicon-on-insulator). we fabricated two kinds of sensor, which are cantilever type and paddle type. Both cantilever and paddle type flow sensors have similar sensitivity as 0.03 mV/VldrkPa.

关键词： Piezoresistance Fluid flow Gas detectors dry etching drag Force sensors Biosensors Sensor phenomena and characterization Stress Intelligent sensors

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A new bio-inspired location search algorithm for peer to peer network based Internet telephony 06

A new bio-inspired location search algorithm for peer to pee...

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Bio-Inspired Models of Network, Information and Computing Systems, BIONETICS

作者： Sachin Kulkarni Niloy Ganguly Geoffrey Canright Andreas deutsch Department of Computer Science and Engineering Indian Institute of Technology Kharagpur Kharagpur India R&D Telenor Oslo Norway Center for Information Services High Performance Computing Dresden Germany Center for Information Services and High Performance Computing (ZIH) TU-Dresden Dresden

ISBN: (纸本)9781424404636

In this paper, we propose a p2p network based location search algorithm which can be used to establish connections in Internet telephony. By using the location search algorithm, the caller can identify the peer it is calling. The algorithm is based upon the concept of gradient search and is applicable upon unstructured networks. It is inspired by a biological phenomenon called haptotaxis. The algorithm performs at par with dHT-based location search algorithms, however it is much more robust than such structured algorithms. We also present some initial analysis to explain the reason behind the superiority of the algorithm

关键词： Peer to peer computing Internet telephony Protocols Network address translation robustness Algorithm design and analysis Costs Computer science High performance computing Biology computing

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Channel Estimation Using Separable Two-dimensional Filters on Nonrectangular Lattice for digital Terrestrial Television Broadcasting

Channel Estimation Using Separable Two-Dimensional Filters o...

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International Symposium on Communications and Information Technologies (ISCIT)

作者： Yusuke Sakaguchi Masayuki Kurosaki Shigenori Kinjo Hanae Sadamichi Atsushi Shimizu Kaihei Kuwata Hiroshi Ochi Departmentof Computer Science and Electronics Engineering Kyushu Institute of Technology Fukuoka Japan Maritime Science and Technology Japan Coast Guard Academy Kure Hiroshima Japan Maritime Science and Technology Japan Coast Guard Academy Hiroshima Japan R&D H.Q. Digital Systems Research Center SANYO Electric Co. Ltd Gifu Japan R&D H.Q. Digital Systems Research Center SANYO Electric Co. Ltd Daito City Osaka Japan

We investigated channel estimation with scattered pilots (SPs) in digital terrestrial television broadcasting (dTTB) and the performance of a receiver with a two-dimensional (2d) filter. High-accuracy interpolation is necessary because we perform channel equalization with SPs, which are inserted in transmit signals nonrectangularly. This interpolation is performed with a 2d filter that has a nonrectangular spectrum. However, the generation of the 2d filter involves heavy computational complexity. We propose a method of reducing the computational complexity by designing separable 2d filters. In addition, we present simulation results that compare our method with some conventional methods and show its effectiveness

关键词： Channel estimation digital filters Lattices TV broadcasting Interpolation Electronic mail Scattering OFdM modulation research and development digital systems

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A Study on Hybrid Energy Storage System for 42V Automotive Power-net

A Study on Hybrid Energy Storage System for 42V Automotive P...

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IEEE Conference on Vehicle Power and Propulsion (VPPC)

作者： Baek-Haeng Lee dong-Hyun Shin Byeong-Woo Kim Hee-Jun Kim Byoung-Kuk Lee Chung-Yuen Won Jin Hur Electronics System R&D Center Korea Automotive Technology Institute Chonan ChungNam South Korea Department of Computer Science & Engineering Hanyang University Chonan ChungNam South Korea School of Information and Communication Engineering Sungkyunkwan University Chonan ChungNam South Korea Intelligent Mechatronics Research Center Korea Electronic Technology Institute Chonan ChungNam South Korea

There are lots of attempts in automotive field to supersede mechanical parts with electrical ones owing to increasing needs of drivers' safety, comfort and convenience as well as recent tightened environmental regulation. In addition, continuous improvements of semiconductor technology make it speed up to use electric components instead of conventional mechanical and hydraulic ones. In accordance with these tendencies, the demand of electric power and energy used in vehicle has been increasing steadily, and it will cause overburden of conventional 14 V power generation and distribution system. A research on higher voltage system started in early 1990s and 42 V power system has been introduced for a future automotive power-net. In this paper, technical trend in energy storage system which implies one of the key technologies to implement 42 V power-net is reviewed, and development results of the improved energy storage system consisted of ultracapacitor, battery and management controllers are presented

关键词： Energy storage Automotive engineering Electrical safety Continuous improvement Vehicles Power generation Voltage Power systems Supercapacitors Batteries

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Study on a rejection Method of Common Mode Current Focusing on an Output transformer in an AFE Circuit

Study on a Rejection Method of Common Mode Current Focusing ...

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EMC Europe 2006 Barcelona, International Symposium on Electromagnetic Compatibility

作者： S. Saito Y Akeboshi S. Nitta Information Technology R&D Center Mitsubishi Electric 5-1-1 Ofuna Kamakura Kanagawa 247-8501 Japan Advanced Course of Production System Engineering Salesian Polytechnic 4-6-8 Koyamagaoka Machida Tokyo 194-0215 Japan

ISBN: (纸本)8468994383

It is known that the common mode current generated by an analog-front-end (abbr. AFE) of a modem is a main cause of radiation from external wires that are connected with the AFE. In this paper, the experiment and the analysis about the common mode current that mainly depends on an output transformer in an AFE circuit is carried out. As a result, the common mode current is generated mainly through coupling capacitances between primary and secondary windings of the output transformer. Current Transverse Conversion Loss (abbr. CTCL) is used for evaluation index for common mode current. It is confirmed that a shielded transformer with very small coupling capacitances between primary and secondary windings is not always a good solution to improve CTCL. That is because the capacitances between the windings and the intermediary shield layer connected to the ground are not balanced. Then, an output transformer with a balun is proposed for improving CTCL due to reducing the influence of the coupling capacitances.

关键词： Baluns Frequency measurement Couplings Capacitance Windings resistors Current measurement Equivalent circuits Simulation Capacitors

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Thermal Stability improvement of Nickel Germanosilicide Utilizing Ni-Ta Alloy and Co/TiN Cappling layer for Nano-scale CMOS technology

Thermal Stability improvement of Nickel Germanosilicide Util...

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International Workshop on Junction technology

作者： Yong-Jin Kim Soon-Young Oh Won-Jae Lee Ying-Ying Zhang Zhun Zhong Soon-Yen Jung Hee-Hwan Ji Han-Seob Cha Yeong-Cheol Kim Jin-Suk Wang Hi-deok Lee Dept. Dept. of Electronics Engineering Chungnam National University Yusong Daejeon Korea R&D center MagnaChip Semiconductor Choongbook Korea Dept. Dept. of Materials Eng. Korea University of Technology and Education Chonan Chungnam Korea

ISBN: (纸本)1424400473

In this paper, highly thermal stable nickel germanosilicide utilizing Ni-Ta alloy and Co/TiN capping layer (Ni-Ta/Co/TiN tri-layer) is proposed for high performance strained Si CMOS technology. The proposed Nickel Germanosilicide utilizing Ni-Ta/Co/ TiN structure exhibits low temperature silicidation and wide range of rapid thermal process (rTP) process window. Moreover, sheet resistance shows stable characteristics up to 700degC for 30 min high temperature annealing and the surface of Ni-Ta/Co/TiN structure is much smoother than that of Ni/Co/TiN structure both after rTP and post-silicidation annealing. Therefore, the thermal immune nickel germanosilicide using the Ni-Ta/Co/TiN tri-layer is highly promising for future SiGe based nano-scale CMOS technology

关键词： CMOS technology Thermal stability Cobalt alloys Nickel alloys Tin alloys rapid thermal processing Surface resistance rapid thermal annealing Silicon alloys Temperature distribution

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Aiding User Intention Satisfaction with Case-Based reasoning in ATIS applications

Aiding User Intention Satisfaction with Case-Based Reasoning...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Chiung-Hon Leon Lee Yen-ru Cheng Alan Liu Department of Computer Science and Information Engineering ChungChou Institute of Technology Yuanlin Changhua Taiwan Yen-Ru Cheng is with Department of R&D Cameo Communications Inc Neihu District Taipei Taiwan Department of Electrical Engineering and Center for Telecommunication Research National Chung Cheng University Min-Hsiung Cha-Yi Taiwan

We propose a method which reuse an old plan from past experiences to satisfy the newly created service request from the user. The user's service request intention is interpreted and represented by computable goal models. A plan consists of a series of actions to achieve related goal models. The actions include internal function calls and external services invocations. A hierarchical case-based reasoning (HCBr) mechanism is used to store and reuse the past problem solving experiences. When new goal models are identified, the HCBr retrieves an old plan and adapt the plan for achieving the newly identified goal. The case base is decomposed into two levels: abstract level and concrete level. The case in the abstract level contains the descriptions of sub-problems, and the case in the concrete level contains system functions to solve the sub-problems. The proposed approach is implemented in the service requester agent of the Advanced Traveler Information Systems (ATIS) to enhance the service assessment.

关键词： Problem-solving Concrete Information systems Intelligent agent Intelligent transportation systems Cybernetics real time systems data analysis Industrial economics Computer science

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