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Engineering Experience in Foundation Fieldbus Technology
Yoshinori Sato 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Foundation Fieldbus (FF) Technology has become common in process control systems in all over the world. However, this technology is not common in Japan. JGC has gained wide engineering experience using this technology for overseas plant construction projects. This technology applies to both field measurement devices and the Distributed Control System (DCS) and has changed the field data transmission from analog to digital communication. New additional engineering steps are required for FF Technology in the current engineering sequence. The major new consideration in engineering work is segment validation and cycle time validation, to confirm the communication link. FF technology also leads the new field device maintenance technology.
Novel Pathogenetic Mechanism in a Clinical Isolate of Yersinia enterocolitica KU14
Sato Yoshinori,Kaneko Kenichi,Sasahara Takeshi,Inoue Matsuhisa The Microbiological Society of Korea 2006 The journal of microbiology Vol.44 No.1
Yersinia enterocolitica induces a broad range of gastrointestinal syndromes, including acute enteritis. We previously reported that the clinical isolate, Y. enterocolitica KU14, which lacks pYV, was still capable of causing clinical infection. The present study demonstrated that KU14 did not trigger the death of macrophages in vitro, unlike WA-314 (ATCC51871, which harbors the pYV virulence plasmid). However, the intracellular growth of KU14 in the macrophages was greater than that of WA-C (ATCC51872, a non-plasmid harboring the derivative pYV plasmid). Treatment with a cholesterol-binding drug $(\beta-cyclodextrin)$ that affected lipid rafts resulted in a dramatic reduction in the inracellular growth of KU14. These data clearly indicate that the enhanced inracellular growth of KU14 is related to lipid raft-mediated infection.
Kengo Hattori,Yoshinori Hamada,Masahito Sato 대한소아소화기영양학회 2020 Pediatric gastroenterology, hepatology & nutrition Vol.23 No.6
Purpose: Our aim was the longitudinal assessment of cyst size in fetuses with biliary cystic malformation (BCM) to explore its etiology and the possibility of antenatal differentiation between biliary atresia (BA) and congenital biliary dilatation (CBD). Methods: We conducted a retrospective review of all patients diagnosed antenatally with BCM from 1994 to 2014 at our institutions. Results: The study cohort comprised of three patients with BA and six with CBD. There were no significant differences in the gestational age and cyst size at the first detection of BCM between the two groups. In fetuses with CBD, the cyst size steadily increased as the gestational age advanced, while it fluctuated around 1.5 cm and remained below 2.1 cm in those with BA. However, the ratio of cystic area to fetal trunk area was approximately constant due to linear fetal growth in fetuses with CBD. Conclusion: Fetuses with BCM <2.1 cm in the late gestation period were more likely to have BA than CBD. Our observation of cyst enlargement with advancing gestational age in the CBD group was attributed solely to fetal growth. Biliary dilatation in fetuses with CBD and BA might be completed at the onset of BCM.
Effect of Patient Characteristics on Vessel Enhancement at Lower Extremity CT Angiography
Takanori Masuda,Takeshi Nakaura,Yoshinori Funama,Tomoyasu Sato,Toru Higaki,Masao Kiguchi,Yukari Yamashita,Naoyuki Imada,Kazuo Awai 대한영상의학회 2018 Korean Journal of Radiology Vol.19 No.2
Objective: To evaluate the effect of patient characteristics on popliteal aortic contrast enhancement at lower extremity CT angiography (LE-CTA) scanning. Materials and Methods: Prior informed consent to participate was obtained from all 158 patients. All were examined using a routine protocol; the scanning parameters were tube voltage 100 kVp, tube current 100 mA to 770 mA (noise index 12), 0.5-second rotation, 1.25-mm detector row width, 0.516 beam pitch, and 41.2-mm table movement, and the contrast material was 85.0 mL. Cardiac output (CO) was measured with a portable electrical velocimeter within 5 minutes of starting the CT scan. To evaluate the effects of age, sex, body size, CO, and scan delay on the CT number of popliteal artery, the researchers used multivariate regression analysis. Results: A significant positive correlation was seen between the CT number of the popliteal artery and the patient age (r = 0.39, p < 0.01). A significant inverse correlation was observed between the CT number of the popliteal artery and the height (r = -0.48), total body weight (r = -0.52), body mass index (r = -0.33), body surface area (BSA) (r = -0.56), lean body weight (r = -0.56), and CO (r = -0.35) (p < 0.001 for all). There was no significant correlation between the enhancement and the scan delay (r = 0.06, p = 0.47). The BSA, CO, and age had significant effects on the CT number (standardized regression: BSA -0.42, CO -0.22, age 0.15; p < 0.05, respectively). Conclusion: The BSA, CO, and age are significantly correlated with the CT number of the popliteal artery on LE-CTA.