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Watthanawisuth N.,National Electronics and Computer Technology Center | Watthanawisuth N.,U.S. National Institute of Standards and Technology | Lomas T.,National Electronics and Computer Technology Center | Lomas T.,Colorado State University | And 3 more authors.
Proceedings - IEEE-EMBS International Conference on Biomedical and Health Informatics: Global Grand Challenge of Health Informatics, BHI 2012 | Year: 2012

In this work, wireless black box using MEMS accelerometer and GPS tracking system is developed for accidental monitoring. The system consists of cooperative components of an accelerometer, microcontroller unit, GPS device and GSM module. In the event of accident, this wireless device will send mobile phone short massage indicating the position of vehicle by GPS system to family member, emergency medical service (EMS) and nearest hospital. The threshold algorithm and speed of motorcycle are used to determine fall or accident in real-time. The system is compact and easy to install under rider seat. The system has been tested in real world applications using bicycles. The test results show that it can detect linear fall, non-linear fall and normal ride with high accuracy. © 2012 IEEE. Source


Shintomi T.,Nihon University | Makida Y.,High Energy Accelerator Research Organization | Hamajima T.,Tohoku University | Hamajima T.,Japan National Research Institute for Metals | And 9 more authors.
IEEE Transactions on Applied Superconductivity | Year: 2012

In order to use effectively renewable energy sources, we propose a new system, called Advanced Superconducting Power Conditioning System (ASPCS), that is composed of SMES and Fuel Cell-Electrolyzer (FC-EL) in connection with a liquid hydrogen station for vehicles. The new system will compensate the fluctuating renewable energy sources with SMES having characteristics of quick response and large I/O power, and with FC-EL having characteristics of moderate response and large storage capacity. The SMES coil with an MgB 2 conductor operated at 20 K is cooled with a thermo-siphon cooling system by using cryogen from the liquid hydrogen station. The necessary minimum storage capacity of SMES is estimated as 50 MJ for compensating output power of 1 MW. A four-pole SMES coil is designed by using stranded cable concept. The design study of the SMES coil composed of the MgB 2 conductor and the thermo-siphon cooling system is reported. © 2002-2011 IEEE. Source


Zhihua Y.,Shenyang Ligong University | Jipeng W.,Shenyang Polytechnic College | Xiaolong K.,Liaoshen industrial Group Ltd Company | Yuhui H.,Shenyang Polytechnic College | And 2 more authors.
International Journal of Online Engineering | Year: 2015

The structure of five axis machine tool is complex and expensive, especially in the processing of complex and sophisticated parts. It is prone to produce the phenomenon of overcutting or undercutting between the machine parts and the knives or the machine tool, which will cause serious damage or even grievous scrap on the machine tool. With the help of VERICUT 7.0 Simulation of NC machine tool, you can modify and optimize the NC program code, shortening the real processing time required and improving the economic benefit of the company remarkably. Source


Nojiri K.,U.S. National Institute of Standards and Technology | Kiyokawa T.,Colorado State University | Okayama Y.,University of Colorado at Boulder | Okayama Y.,Japan National Research Institute for Metals
IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM | Year: 2015

Utilization of the digital human has been tried for the human work-related evaluation for industrial products and the prevention of an injury during sports activity. The human modeling for the posture generation of digital human are studied actively. In this study, we aim for the construction of the skeleton model for forearm pro-/supination to be performed in everyday life frequently. The forearm skeleton of the present digital human is comprised of 1 link, therefor we cannot estimate the movement of the forearm bone exactly. As the pro-/supination model of the forearm skeleton, there are the models Fick and others and Kecskemethy and others proposed. This model is comprised of 4 closed link of ulna, radius, elbow side junction and wrist side junction such as human forearm skeleton. In this paper, by analyzing CT imaging of the forearm, we proposed the newer forearm skeleton model based on biomechanics. © 2015 IEEE. Source


Manukonda S.,U.S. National Institute of Standards and Technology | Sridhar K.,Colorado State University | Samundiswary P.,University of Colorado at Boulder | Samundiswary P.,Japan National Research Institute for Metals
International Conference on Communication and Signal Processing, ICCSP 2013 - Proceedings | Year: 2013

Recent technologies forcing the integration of Radio Frequency (RF) circuits with high speed digital circuits in Mixed Signal Systems. Ground Bounce Noise suppression has become the major issue during the design of the mixed signal circuits. Generally Electromagnetic Band Gap (EBG) structures are used for the suppression of GBN in mixed signal systems. L-bridge EBG structure with slit is one of the best EBG to suppress GBN over UWB frequency range. However Multi slit L-bridge EBG structure can further attenuate the GBN in mixed signal systems. This paper efficiently isolates the noise in Mixed Signal Systems in an Ultra Wide Band (UWB) frequency range. A new EBG structure is realized with a combination of L-shaped Bridge and slit EBG structure with multi slit EBG structure. In this configuration the L-shaped bridge with slit remained same and an extra slit is incorporated parallel to the basic slit. This configuration provides GBN suppression covering UWB frequency range. Multi-slit L-bridge EBG (ML-EBG) structure based Power Distribution Network (PDN) provides an excellent isolation (-80 dB to -120 dB) in UWB frequency range. The ability of ML-EBG structure to isolate GBN has been quantified in this paper. © 2013 IEEE. Source

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