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IEEE International Conference on Micro Electro Mechanical systems

作者： Sung-Sik Yun Sang Youl Yoon Jong-Hyun Lee Sung Yang Department of Nanobio Materials and Electronics GIST Gwangju South Korea Graduate Program of Medical System Engineering GIST Gwangju South Korea Department of Mechatronics GIST Gwangju South Korea Gwangju Institute of Science and Technology Gwangju KR

ISBN: (纸本)9781424457618;9781424457649

This paper presents a mechanical cell lysis microfluidic chip with an ultra-sharp nano-blade array fabricated by simple and cost effective crystalline wet etching of (110) silicon. The ultra-sharp nano-blade array is simply formed by the undercutting during the crystalline wet etching process. The sharpness of the silicon nano-blade is less than 10 nm after the undercutting. EL4 mouse T-lymphoma cells are used for the demonstration of the mechanical lysis chip, and the cells are easily disrupted by the silicon nano-blade array without helping of additional reagents or electrical sources. The time-resolved observation of the mechanical cell lysis shows that the developed silicon nano-blade array is enough to easily disrupt the cell membrane even at very low flow rate of 0.7 ¿¿/hr.

关键词： Crystallization Wet etching Silicon

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Low loss LTCC passive transmission line at Millimeter-wave frequency

Low loss LTCC passive transmission line at Millimeter-wave f...

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Asia-Pacific Conference on Applied Electromagnetics, APACE

作者： Mohd Fadzil Amiruddin Salizul Jaafar Suhandi Bujang Azzemi Ariffin Azlan Sulaiman Noor Aisyah Mohd Akib Young Chul Lee System Technology Program TM Innovation Centre TM Research and Development Sdn. Bhd. Cyberjaya Selangor Darul Ehsan Malaysia Division of Marine Electronics and Communication Engineering Mokpo National University Mokpo Jeonnam South Korea

60 GHz band has advantages in terms of broadband, frequency reuse, dimension of circuit, size of layout, and power. A wide bandwidth available in 60 GHz band is ideal for the high data rate transmission. It is also advantage of 60 GHz band that the passive circuit can be made very small. Due to those advantages, this band now is applied to Millimeter-wave (MM-wave) video transmission, outdoor and indoor wireless system, wireless Gigabit Ethernet link, and 60 GHz wireless LAN application. A low temperature co-fired ceramic (LTCC) becomes a technology of choice when it comes to MM-wave band. However, LTCC shows several issues on integration of MM-wave circuits such as; attenuation, resonance and isolation of passive circuits. This paper described the design techniques for an efficient low loss LTCC passive transmission lines. LTCC passive transmission line was design in the 6-layers of LTCC dielectric substrate, using Advance system Design (ADS) and Computer Simulation technology (CST) for EM simulation. Analysis and measurement of transmission lines using different substrate height of 100 μm and 114 μm was also presented. The proposed structure is validated by full-wave simulation, and experimental measurements. The analyses of fabricated modules with 100 μm and 114 μm shows the passive transmission lines achieved the insertion loss less than -1dB and return loss less than -10dB.

关键词： Coplanar waveguides Transmission line measurements Substrates Power transmission lines Propagation losses Resonant frequency Dielectric measurements

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The research of innovative design of M14 rifle trigger mechanism based on TRIZ

Chung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute ...

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Chung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute of technology 2010年第1期39卷 185-212页

作者： Sun, Huai-Ku Deng, Shi-Gan Yeh, Jau-Nan Liao, Jian-Xiong Department of Power Vehicle and System Engineering Chung Cheng Institute of Technology National Defense University Taiwan School of Defense Science Chung Cheng Institute of Technology National Defense University Taiwan Master Program of Weapon System Engineering Chung Cheng Institute of Technology National Defense University Taiwan

This research presents a systemic method to the innovative design of M14 rifle trigger mechanism based on TRIZ. We used the system Functional Analysis to define the functions for the components of trigger mechanism, the Strategy Edition to evaluate the value of the components for selection and deletion of the lower value components to simplify the trigger mechanism. The technical parameters, the invention principle, and the contradictory matrix of TRIZ were applied to solve the contradictory problem generated during the innovative design process. Finally, we created the 3D modeling of parts and simulation of the new trigger mechanism to prove its feasibility. After we applied this systematic method to the M14 rifle trigger mechanism, not only fewer components has made, but the trigger mechanism newly designed can do all the functions of original design;it can be also replace the original trigger mechanism to install into M14 rifles.

关键词： Functional analysis

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Model-based diagnostic approach to acquisition in a system-of-systems context

Model-based diagnostic approach to acquisition in a system-o...

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作者： Meyers, B. Craig Fowler, Summer C. Smith, James D. Research Technology and System Solutions Program Software Engineering Institute Carnegie Mellon University 4500 Fifth Avenue Pittsburgh PA 15213 United States Research Technology and System Solutions Program Software Engineering Institute Carnegie Mellon University 4301 Wilson Boulevard Arlington VA 22203 United States

ISBN: (纸本)9781563479694

It is well-known that there are significant challenges in the acquisition of systems, often related to cost, schedule, and performance. In this paper we formulate a model-based diagnostic approach that may be used to identify potential problems in an acquisition. The approach uses models of the components, their interactions, and behaviors of the specification of a planned acquisition. These models may then be compared with observations of an ongoing acquisition to identify possible problems. The approach to the model development and analysis is specified using formal mathematics. Several examples are shown to illustrate the application of the approach in the context of a "red team" that analyzed an enterprise acquisition that was in difficulty. Copyright © 2009 by Carnegie Mellon University.

关键词： system of systems

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RESEARCH ON STABILITY OF CRAWLER system FOR DEEP SEA ROV

RESEARCH ON STABILITY OF CRAWLER SYSTEM FOR DEEP SEA ROV

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28th International Conference on Ocean, Offshore and Arctic engineering (OMAE)

作者： Inoue, Tomoya Katsui, Tokihiro Murakami, Hisataka Tahara, Junichiro Advanced Marine Technology Research Program JAMSTEC (Japan Agency for Marine-Earth Science and Technology) Japan Department of Marine System Engineering Osaka Prefecture University Japan Graduate School of Engineering Osaka Prefecture University Japan

ISBN: (纸本)9780791843444

A deep sea ROV is desired to be light from the viewpoints of reducing a tension on an underwater cable and possessing the adequate movability by thrusters in water. On the other hand, when moving by a crawler system on the seabed, such a lightweight will influence on its movability characteristics. As an initial investigation experiments using an actual ROV were conducted in a water tank. And it was observed that the ROV ran in wheelie in some cases and almost fell down in extreme case in spite of the fact that it could run stably on land. In order to clarify the results fundamental theory of stability of the ROV in steady running is presented. The theory gives the discriminant chart of stable running for the combination of the center of gravity and the center of buoyancy. Experiments using a model were conducted to verify the theory. In order to increase the stable area and also to change meaningly the center of gravity, this paper proposes a method to virtually increase the weight and to change the center of gravity by using thrusters. And preliminary experiments were conducted to confirm its advantageous effect.

关键词： Water tanks

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T-shaped plasmonic array as a narrow-band thermal emitter or biosensor

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Optics Express 2009年第16期17卷 13526-13531页

作者： Wang, Chih-Ming Chang, Yia-Chung Abbas, Mohammed Nadhim Shih, Ming-Hsiung Tsai, Din Ping Research Center for Applied Sciences Academia Sinica Taipei 11529 Taiwan Institute of Physics and Nano Science and Technology Program Taiwan International Graduate Program Academia Sinica Taipei 115 Taiwan Department of Engineering and System Science NTHU Hsinchu 300 Taiwan Department of Physics National Taiwan University Taipei 106 Taiwan

A T-shaped plasmonic array is proposed for application as an effective thermal emitter or biosensor. The reflection and thermal radiation properties of a T-shaped array are investigated theoretically. The angular dependent reflectance spectrum shows a clear resonant dip at 0.36eV for full polar angles. No other significant localized resonant mode is found in the investigated spectral range from 0.12eV to 0.64eV. According to the Kirchhoff s law, the thermal radiation of the proposed structure can lead to a sharp peak at 3.5 νm with low sideband emission. We have also found that the T-shaped structure filled with organic material such as PMMA with different thicknesses (10 nm -50 nm) can lead to significant shift of the resonance wavelength. Thus, the T-shaped structure can also be used as a good sensor for organic materials. © 2009 Optical Society of America.

关键词： Heat radiation

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Contamination-free cell lysis microfluidic device using cell cross over

Contamination-free cell lysis microfluidic device using cell...

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13th International Conference on Miniaturized systems for Chemistry and Life Sciences, MicroTAS 2009

作者： Mun, Byung Phil Jung, Seung Mo Yoon, Sang Youl Lee, Jong Hyun Yang, Sung School of Information and Mechatronics Gwangju Institute of Science and Technology Korea Republic of Graduate Program of Medical System Engineering Gwangju Institute of Science and Technology Korea Republic of Department of Nanobio Materials and Electronics Gwangju Institute of Science and Technology Korea Republic of

ISBN: (纸本)9780979806421

Complicated and time-consuming cell purification processes prevent a micro cell lysis device from integrating with LOC (Lab-on-a-chip) or μ-TAS (μ-Total Analysis system) devices for cell analysis. In this paper, we present a microfluidic cell lysis device using a contamination-free cell cross over method in order to minimize the cell pretreatment procedure. © 2009 CBMS.

关键词： Microfluidics

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Responsiveness Improvement of Idling Speed Control for Automotive Using SMC

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Journal of Software engineering and Applications 2009年第5期2卷 309-315页

作者： Yang ZHANG Nobuo KURIHARA Hiroyuki YAMAGUCHI Doctor of Science Program in Mechanical Systems Hachinohe Institute of Technology Graduate School of Engineering Hachinohe Institute of Technology Department of System and Information Hachinohe Institute of Technology

To improve the responsiveness of engine speed control to disturbances, robust controls were investigated by simulation. The intake air control system of a gasoline engine is a typical nonlinear system, and the disturbances and parameter perturbations are generally regarded as being the unstable factors with regard to engine control. In this paper, a Mean-Value Engine Model (MVEM) with disturbances and parameter perturbations is investigated using Sliding Mode Control (SMC), which is a form of variable structure control, with a view to address instability in the idle speed control process. The simulation results confirmed that, compared with a conventional PI (Proportional-Integral) controller, the stability of the idle speed for an engine that is being subjected to disturbances, parameter variations and background noise is greatly improved by the application of SMC.

关键词： Gasoline Engine Intake Air Control Sliding Mode Control Simulation

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Micromachined ultrasonic transducer using piezoelectric PVDF film to measure the mechanical properties of bio cells

Micromachined ultrasonic transducer using piezoelectric PVDF...

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IEEE SENSORS

作者： Minhyun Jung Man Geun Kim Jong-Hyun Lee School of Information and Mechatronics Gwangju Institute of Science and Technology Gwangju South Korea Graduate-program of Medical System Engineering Gwangju Institute of Science and Technology Gwangju South Korea

We proposed a new method to measure the frequency-dependent attenuation of bio cells using piezoelectric ultrasonic transducer. The polyvinylidene fluoride (PVDF) polymer was employed as piezoelectric material to take an advantage of its low acoustic impedance (2.7 Mrayl) so that the transmission of acoustic power will be improved by impedance matching with that of liquid medium. The thickness of PVDF film is 110 ¿m and the resonance frequency of the 1 st thickness mode is 8.7 MHz. In order to characterize the fabricated ultrasonic transducer, a transducer and an acoustic wave reflector were positioned face to face. The output voltage for reflected transmitted ultrasonic wave was measured with impulse method and was transformed into the Round Trip Insertion Loss (RTIL) where the dominant frequency ranges from 5 MHz to 9 MHz.

关键词： Ultrasonic transducers Piezoelectric films Mechanical variables measurement Ultrasonic variables measurement Mechanical factors Acoustic measurements Frequency measurement Attenuation measurement Polymers Piezoelectric materials

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Nonlinear internal wave run-up on impermeable steep slopes

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Journal of Offshore Mechanics and Arctic engineering 2009年第4期131卷 1-5页

作者： Tseng, I-Fan Chen, Chen-Yuan Kuo, Hui-Ming Department of Marine Environment and Engineering National Sun Yat-Sen University Kaohsiung 80424 Taiwan Department of Computer Science National Pingtung University of Education No. 4-18 Ming Shen Rd. Pingtung 90003 Taiwan Department of Management Information System Yung-Ta Institute of Technology and Commerce Lin-Luoh Pingtung 90941 Taiwan Doctoral Program in Management National Kaohsiung First University of Science and Technology Kaohsiung Taiwan Department of Logistics Management Shu-Te University Yen Chau Kaohsiung 82445 Taiwan

Laboratory experiments were conducted to investigate the run-up of internal solitary waves (ISWs) on steep uniform slopes in a two-layered fluid system with a free surface. A 12 m long wave flume, which incorporated a movable vertical gate for generating ISWs, was used in the experiments. A steep uniform slope was modeled at one end of the flume. In the present study we looked at internal waves with small and large amplitudes using a steep uniform slope (from one of Θ=30, 50, 60, 90, 120, and 130 deg) much longer than those previously published in the literature. Results collected from a wide range of experimental runs show that the run-up height depends on the planar slope, while the breaking depth is only antecedent to the amplitude of an ISW. The overall quantitative agreement with the linear feature aspects of the incident wave amplitude is encouraging. Copyright © 2009 by ASME.

关键词： Arctic engineering

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