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Development of CAD for Zone Dividing of Process Control Networks to Improve Cyber Security
Hiroki Moritani,Shuichi Yogo,Takahito Morita,Midori Kojima,Kento Watanabe,Jing Sun,Ichiro Koshijima,Yoshihiro Hashimoto 제어로봇시스템학회 2014 제어로봇시스템학회 국제학술대회 논문집 Vol.2014 No.10
Recently, cyber security becomes a serious problem for not only OA (Office Automation) systems but also PA (Process Automation) and FA (Factory Automation) systems. Even the controllers, which are not connected to Internet directly, have been attacked with malwares, such as Stuxnet and Quantum. When control system fails, it may lead to serious accidents such as explosion or leakage of poisonous and deleterious substances. For process control, cyber-attack is one of the causes to threaten safety. The authors of this paper had proposed zone division of process control networks to ensure cyber security and safety. To apply the method, it is necessary to build CE (Cause Effect) matrices which express the qualitative information of the plant and controllers. It is very troublesome for large-scale plants. CAD (Computer Aided Design) tool for zone dividing is proposed in this paper. CE matrices are generated by using DAE (Differential and Algebraic Equation) registered in equipment modules of plant CAD such as ASPEN or Pro II. The candidates of zone division of process control networks, which can assure the safety against concealment and remote operation by cyber attackers, can be proposed.
Non-invasive Assessment of Neuromuscular and Cardiovacular Fitness
Chung,So-Young,Kim,Yong-Jin,Muro, Moritani T. 忠南大學校體育科學硏究所 1996 體育科學硏究誌 Vol.14 No.1
본 논문에서는 무산소성역치(anaerobic threshold, AT)와 신경근의 피로역치에서 최대파워산출(EMGFT)을 결정하는 심전도기술(EMG technique)에 대해 자세히 기술하고자 한다. 또한 인체 근섬유 유형의 조성을 결정하는 비침해성(non-invasive)방법에 대해 보고하고자 한다. 이 방법은 1)심전도 주파수 파워의 분광학적 변수인 평균 파워 주파수(mean power frequency, MPF)와 근평균 제곱근 크기(root meqan square amplitude, RMS), 2)최대 연축 수축 지표(dF/dtmax, electromechanical delay time, EMD), 3)지속된 50% 최대임의 근수축시 근피로도에 근거하여 결정하였다. 마지막으로 심혈관 신경의 통합성과 적합성을 검정하기 위해서 최신의 ECR-RR interval 파워의 분광학적 분석에 대해 자세히 논의하고자 한다.
OPTICAL-INFRARED AND HIGH-ENERGY ASTRONOMY COLLABORATION AT HIROSHIMA ASTROPHYSICAL SCIENCE CENTER
UEMURA, MAKOTO,YOSHIDA, MICHITOSHI,KAWABATA, KOJI S.,MIZUNO, TSUNEFUMI,TANAKA, YASUYUKI T.,AKITAYA, HIROSHI,UTSUMI, YOUSUKE,MORITANI, YUKI,ITOH, RYOSUKE,FUKAZAWA, YASUSHI,TAKAHASHI, HIROMITSU,OHNO, MA The Korean Astronomical Society 2015 天文學論叢 Vol.30 No.2
The Hiroshima Astrophysical Science Center (HASC) was founded in 2004 at Hiroshima University, Japan. The main mission of this institute is the observational study of various transient objects including gamma-ray bursts, supernovae, novae, cataclysmic variables, and active galactic nuclei by means of multi-wavelength observations. HASC consists of three divisions; the optical-infrared astronomy division, high-energy astronomy division, and theoretical astronomy division. HASC is operating the 1.5m optical-infrared telescope Kanata, which is dedicated to follow-up and monitoring observations of transient objects. The high-energy division is the key operation center for the Fermi gamma-ray space telescope. HASC and the high-energy astronomy group in the department of physical science at Hiroshima University are closely collaborating with each other to promote multi-wavelength time-domain astronomy. We report the recent activities of HASC and some science topics pursued by this multi-wavelength collaboration.
Expression of P2X<sub>3</sub> receptor in the trigeminal sensory nuclei of the rat
Kim, Yun Sook,Paik, Sang Kyoo,Cho, Yi Sul,Shin, Ho Seob,Bae, Jin Young,Moritani, Masayuki,Yoshida, Atsushi,Ahn, Dong Kuk,Valtschanoff, Juli,Hwang, Se Jin,Moon, Cheil,Bae, Yong Chul Wiley Subscription Services, Inc., A Wiley Company 2008 Journal of comparative neurology Vol.506 No.4
<P>Trigeminal primary afferents expressing P2X<SUB>3</SUB> receptor are involved in the transmission of orofacial nociceptive information. However, little is known about their central projection pattern and ultrastructural features within the trigeminal brainstem sensory nuclei (TBSN). Here we use multiple immunofluorescence and electron microscopy to characterize the P2X<SUB>3</SUB>-immunopositive (+) neurons in the trigeminal ganglion and describe the distribution and synaptic organization of their central terminals within the rat TBSN, including nuclei principalis (Vp), oralis (Vo), interpolaris (Vi), and caudalis (Vc). In the trigeminal ganglion, P2X<SUB>3</SUB> immunoreactivity was mainly in small and medium-sized somata, but also frequently in large somata. Although most P2X<SUB>3</SUB><SUP>+</SUP> somata costained for the nonpeptidergic marker IB4, few costained for the peptidergic marker substance P. Most P2X<SUB>3</SUB><SUP>+</SUP> fibers in the sensory root of trigeminal ganglion (92.9%) were unmyelinated, whereas the rest were small myelinated. In the TBSN, P2X<SUB>3</SUB> immunoreactivity was dispersed in the rostral TBSN but was dense in the superficial laminae of Vc, especially in the inner lamina II. The P2X<SUB>3</SUB><SUP>+</SUP> terminals contained numerous clear, round vesicles and sparse large, dense-core vesicles. Typically, they were presynaptic to one or two dendritic shafts and also frequently postsynaptic to axonal endings, containing pleomorphic vesicles. Such P2X<SUB>3</SUB><SUP>+</SUP> terminals, showing glomerular shape and complex synaptic relationships, and those exhibiting axoaxonic contacts, were more frequently seen in Vp than in any other TBSN. These results suggest that orofacial nociceptive information may be transmitted via P2X<SUB>3</SUB><SUP>+</SUP> afferents to all TBSN and that it may be processed differently in different TBSN. J. Comp. Neurol. 506:627–639, 2008. © 2007 Wiley-Liss, Inc.</P>
Paik, Sang Kyoo,Lee, Hyo Jeong,Choi, Min Ki,Cho, Yi Sul,Park, Mae Ja,Moritani, Masayuki,Yoshida, Atsushi,Kim, Yun Sook,Bae, Yong Chul Wiley Subscription Services, Inc., A Wiley Company 2009 Journal of neuroscience research Vol.87 No.5
<P>The supratrigeminal region (Vsup) is important for coordination of smooth jaw movement. However, little is known about the synaptic connections of the Vsup premotoneurons with the trigeminal motor neurons. In the present study, we examined axon terminals of Vsup premotoneurons in the contralateral trigeminal motor nucleus (Vmo) by a combination of anterograde tracing with cholera toxin B–horseradish peroxidase (CTB-HRP), postembedding immunohistochemistry for the amino acid transmitters glutamate, GABA, and glycine, and electron microscopy. Tracer injections resulted in anterograde labeling of axon terminals of the Vsup premotoneurons in the motor trigeminal nucleus (Vmo). The labeled boutons in Vmo exhibited immunoreactivity for glutamate, GABA, or glycine: glutamate-immunopositive boutons (69%) were more frequently observed than GABA- or glycine-immunopositive boutons (19% and 12%, respectively). Although most labeled boutons (97%) made synaptic contacts with a single postsynaptic dendrite, a few glutamate-immunopositive boutons (3%) showed synaptic contact with two dendrites. No labeled boutons participated in axoaxonic synaptic contacts. Most labeled boutons (78%) were presynaptic to dendritic shafts, and the remaining 22% were presynaptic to somata or primary dendrites. A large proportion of GABA- or glycine-immunopositive boutons (40%) were presynaptic to somata or primary dendrites, whereas most glutamate-immunopositive boutons (86%) were presynaptic to dendritic shafts. These results indicate that axon terminals of Vsup premotoneurons show simple synaptic connection with Vmo neurons. This may provide the anatomical basis for the neural information processing responsible for jaw movement control. © 2008 Wiley-Liss, Inc.</P>