Japan National Research Institute for Metals

Tsukuba, Japan

Japan National Research Institute for Metals

Tsukuba, Japan

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Usman F.,University of Tenaga Nasional | Omar R.C.,Rice University | Omar R.C.,Colorado State University | Sidek L.M.,University of Colorado at Boulder | Sidek L.M.,Japan National Research Institute for Metals
Lecture Notes in Engineering and Computer Science | Year: 2014

Water quality monitoring in urban area is a must. Regard to development and increasing of population due to urbanization, it has catapulting degradation effect to water quality of river. River Penchala is one of main river in Klang basin flows crossing urban area where diverse land use established. From historical data on its water quality, River Penchala was facing very polluted water with Water Quality Index range from III to V. Data on water quality periodically collected from several measurement stations along this river but analysis and interpretation of those information require appropriate strategy to implement the correct technique and/or procedure in order to improve the water quality of the river. This paper present development of mobile application for field knowledge data collection to be used by a decision support system. Previous methods on development of water quality decision support system are also discussed. At the end of this paper an initial framework of decision support system for River Penchala river catchment will be presented.


Li D.X.,Tohoku University | Kimura A.,Tohoku University | Haga Y.,Japan Atomic Energy Agency | Nimori S.,Japan National Research Institute for Metals | Shikama T.,Tohoku University
Journal of Physics Condensed Matter | Year: 2011

We present the magnetic and transport properties of single crystalline U2PdSi3 measured with the magnetic field (H) (or measuring current, I ) applied along two typical crystallographic directions, i.e. H ⊥ c-axis and H ∥ c-axis (or I ⊥ c-axis and I ∥ c-axis). For both directions, a spin-glass state is confirmed to form at low temperature with the same spin freezing temperature Tf (=11.5 K), initial frequency shift δTf (=0.023) and activation energy Ea/k B (=90.15 K) in zero dc field. Strong anisotropy in magnetic and transport behavior is found to be a significant feature of U 2PdSi3. The unusual ferromagnetic-like anomaly in ac susceptibility and dc magnetization curves around Tm = 71 K is observed in the case of H ∥ c-axis but not in the cases of H ⊥ c-axis. The characteristic temperature Tir, below which evident irreversible magnetism originated from random spin freezing can be observed, shows much stronger field dependence for H ⊥ c-axis than for H ∥ c-axis. Moreover, an unusual finding is that the electrical resistivity measurements indicate the formation of magnetic Brillouin-zone boundary gaps and much larger magnetic scattering for I ⊥ c-axis, while the coherent-Kondo-effect-like behavior is obvious for I ∥ c-axis. We also emphasize that no resistivity minimum can be detected down to 2.5 K for either direction. The observed magnetic and transport behaviors are compared with those in polycrystalline U 2PdSi3 and other 2:1:3 intermetallic compounds. © 2011 IOP Publishing Ltd.


Bochicchio M.A.,U.S. National Institute of Standards and Technology | Longo A.,Colorado State University | Vaira L.,University of Colorado at Boulder | Vaira L.,Japan National Research Institute for Metals
13th IEEE International Conference on BioInformatics and BioEngineering, IEEE BIBE 2013 | Year: 2013

The modern cloud-based solutions are gaining the upper hand in the most common industrial areas. In the healthcare sector, cloud computing is starting to set foot on, and the major applications are about the possibility to collect and share medical data. One of the hot topics argued in the obstetrics and gynecologist community, is related to the fetal growth and, in particular, to the necessity to have updated standards, since the current references lack information like ethnicity and maternal biometric parameters (essential to evaluate the correct growing parameters). We believe that cloud computing could help the development of such a kind of dynamic and customized fetal growth curves, which in turn could improve the possible detection of anomalies and pathological states during the whole pregnancy period. The paper presents a proposal for resolving the problem of the fetal biometric data obsolescence and the inability to use them in a custom or adapted fashion giving the opportunity to manage clinical data which are dispensed "as a service" on a global scale. The objective of the study is to create and validate a database collecting several fetal growth curves (obtained by means of the available results beginning from 1963 until 2013). © 2013 IEEE.


Kumar C.,U.S. National Institute of Standards and Technology | Chauhan S.,Rice University | Chauhan S.,Colorado State University | Alla R.N.,University of Colorado at Boulder | And 2 more authors.
2015 International Conference on Communication and Signal Processing, ICCSP 2015 | Year: 2015

In recent years, automatic visual inspection system has become useful tool in industrial process. The citrus fruit sorting and grading process has now been completely automated with the exception of the final stage of classification concerned with visual inspection. Due to the growing demand of quality citrus fruit, an automated and reliable identification and classification mechanism in order to handle the bulk of data is implemented. Human vision sometimes leads to mismatch between the fruits. Using machine vision system, it will be simple to reduce human effort and achieve a better output. The objective of this project is to assess the fruit by color grading. In this paper we describe an integrated system developed for the sorting on citrus fruit and for the color grading of the defected fruits. The result suggests that the performance is adequate to provide the basis for a viable commercial visual inspection system. The following project aims at implementing such an automated system using image processing with images of citrus fruit as a basis of classification depending on its color. The goal of the inspection is not to give a statistical analysis of the production but to classify every citrus fruit into quality constant batches. © 2015 IEEE.


Lee P.-J.,U.S. National Institute of Standards and Technology | Xiao Y.-Z.,Rice University | Xiao Y.-Z.,Colorado State University | Yao S.-R.,University of Colorado at Boulder | Yao S.-R.,Japan National Research Institute for Metals
2016 IEEE International Conference on System Science and Engineering, ICSSE 2016 | Year: 2016

This paper proposes an algorithm that can adjust the essential quality for different ROI and further control the bit rate. We select three characteristics for classification, namely foreground, the edges of objects, and dynamic region as the interesting area of eyes. In the region of high interest, we will give a smaller quantization parameter to achieve a better image quality; on the contrary, in the region of low interest, we then give a larger quantization parameter to reduce the amount of data. According to our last experimental results, our scenes would been correctly classified out, which was decreased by 10% and 5% of the bit-rate in comparison with the bit-rates of 3DVC reference software ATM6.0 and the references in bit-rate control. © 2016 IEEE.


Li D.X.,Tohoku University | Nimori S.,Japan National Research Institute for Metals | Shikama T.,Tohoku University
Journal of Physics: Conference Series | Year: 2012

Magnetic, transport, thermal and magnetocaloric properties of the hexagonal ZrNiAl-type compounds PrPdIn and NdPdIn have been studied. The results indicate that both the compounds exhibit long-range ferromagnetic ordering with the transition temperature TC=11.2 and 34.3 K, respectively. For NdPdIn, an additional phase transition occurs at T0=18.3 K caused by the antiferromagnetic coupling. The magnetic entropy change of PrPdIn and NdPdIn, calculated from the magnetization data, shows a large peak around the temperature just above TC suggesting the evident magnetocaloric effect. Below TC, both samples show the irreversible temperature dependence of magnetization and the long time magnetic relaxation effect, which may be the consequence of the domain-wall pinning effect and/or the intrinsic magnetic frustration due to the non-collinear ferromagnetic spin structure.


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.


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.


Author F.A.,U.S. National Institute of Standards and Technology | Author S.B.,Colorado State University | Author T.C.,University of Colorado at Boulder | Author T.C.,Japan National Research Institute for Metals
IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM | Year: 2012

This electronic document is a live template. The various components of your paper [title, text, heads, etc.] are already defined on the style sheet, as illustrated by the portions given in this document. © 2012 IEEE.


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.

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