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Circuit and Electromagnetic Hybrid Simulation Technique Based on Waveform Relaxation Method
Masaki Unno,Hideki Asai 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7
In this paper, we propose a circuit/electromagnetic hybrid simulation technique. In order to divide the object to be analyzed into the regions which should be analyzed by the circuit simulation and the electromagnetic simulation methods, the waveform relaxation technique is used. We simulated the crosstalk between two close microstrip lines using the proposed technique. As a result, it is confirmed that the waveform results obtained by our approach agree with the waveforms by the commercial electromagnetic simulator.
Masaki Sakamoto,Yoshinari Tanaka 한국생태학회 2013 Journal of Ecology and Environment Vol.36 No.2
Natural zooplankton communities are composed of many different species at different trophic levels in the aquatic food web. Several researchers have reported that in mesocosm/enclosure experiments, larger cladocerans tend to be more sensitive to carbamate insecticides than smaller ones (Daphnia > Moina, Diaphanosoma > Bosmina). In contrast, results from individual-level laboratory tests have suggested that large cladoceran species are more tolerant than small species. To clarify this inconsistency, we conducted a microcosm experiment using model zooplankton communities with different species compositions, where animals were exposed to lethal (near to the 24 h LC50, concentration estimated to kill 50% of individuals within 24-h for the small cladoceran Bosmina) and lower, sublethal concentrations of carbaryl. In the experiment, population densities of the small cladocerans (Bosmina and Bosminopsis) decreased subsequent to the applications of chemical, but no impacts were observed on the large cladoceran Daphnia. Our results supported the reports of previous individual level toxicity tests, and indicated that the sensitivity of zooplankton to the insecticide was unchanged by biological interactions but the response of population can be modified by compensation of population through hatching from resting eggs and/or the persistence of insecticide in the systems.
Fabrication of BIT Thick Films Patterned by Proton Beam Writing
Masaki Yamaguchi,Kazuki Watanabe,Hiroyuki Nishikawa,Yoichiro Masuda 한국물리학회 2017 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.71 No.2
In this study, we fabricated thick films with polyvinylpyrrolidone (PVP) added to bismuth titanate (Bi4Ti3O12) to form a lead-free ferroelectric material. We examined the direct patterning of these materials by using proton-beam irradiation. When 50% PVP was added to the organic source solution, the c-axis orientation was promoted and cracks were suppressed due to stress relaxation. In addition, a dot and an arbitrary-shape micro-pattern were formed on bismuth-titanate thick film by micromachining using a proton beam.
Japanese Expressions that Include English Expressions
( Masaki Murata ),( Toshiyuki Kanamaru ),( Koichirou Nakamoto ),( Katsunori Kotani ),( Hitoshi Isahara ) 한국언어정보학회 2007 학술대회 논문집 Vol.2007 No.-
We extracted English expressions that appear in Japanese sentences in newspaper articles and on the Internet. The results obtained from the newspaper articles showed that the preposition "in" has been regularly used for more than ten years, and it is still regularly used now. The results obtained from the Internet articles showed there were many kinds of English expressions from various parts of speech. We extracted some interesting expressions that included English prepositions and verb phrases. These were interesting because they had different word orders to the normal order in Japanese expressions. Comparing the extracted English and katakana expressions, we found that the expressions that are commonly used in Japanese are often written in the katakana syllabary and that the expressions that are not so often used in Japanese, such as prepositions, are hardly ever written in the katakana syllabary.
Masaki Karasuyama,Masafumi Gotoh,Takuya Oike,Kenichi Nishie,Manaka Shibuya,Hidehiro Nakamura,Hiroki Ohzono,Junichi Kawakami 대한견주관절의학회 2023 대한견주관절의학회지 Vol.26 No.3
Background: A supervised physiotherapy program (SPP) is a standard regimen after surgical rotator cuff repair (RCR); however, the effect of a home-based exercise program (HEP), as an alternative, on postoperative functional recovery remains unclear. Therefore, the purpose of this meta-analysis was to compare the functional effects of SPP and HEP after RCR. Methods: We searched electronic databases including Central, Medline, and Embase in April 2022. The primary outcomes included the Constant score, American Shoulder and Elbow Surgeons score, University of California Los Angeles shoulder score, and pain score. Secondary outcomes included range of motion, muscle strength, retear rate, and patient satisfaction rate. A meta-analysis using random-effects models was performed on the pooled results to determine the significance. Results: The initial database search yielded 848 records, five of which met our criteria. Variables at 3 months after surgery were successfully analyzed, including the Constant score (mean difference, −8.51 points; 95% confidence interval [CI], −32.72 to 15.69; P=0.49) and pain score (mean difference, 0.02 cm; 95% CI, −2.29 to 2.33; P=0.99). There were no significant differences between the SPP and HEP. Other variables were not analyzed owing to the lack of data. Conclusions: Our data showed no significant differences between SSP and HEP with regard to the Constant and pain scores at 3 months after RCR. These results suggest that HEP may be an alternative regimen after RCR.
Masaki Shiraishi,Takao Ishii,Yoshiyasu Kigawa,Masaya Tayama,Keisuke Inoue,Kenji Narita,Masaru Tateno,Chiaki Kawanishi 대한신경정신의학회 2018 PSYCHIATRY INVESTIGATION Vol.15 No.7
Many patients with mental disorders visit emergency departments (EDs). However, the majority of these patients do not receive psychiatric assessment. In the present study, we investigated the detailed proportion of patients with mental disorders visiting an urban ED in the largest northern city in Japan. A retrospective chart review study was performed at a University Hospital from January 2012 to December 2015. The reasons for psychiatric consultations made by ED staff, and the primary psychiatric diagnoses were investigated. Among all living patients, 20% of them received consultations. The most common reason for consultation was suicide attempt followed by agitation or insomnia. Of all diagnoses, organic mental disorder was the most frequent and the mean age was significantly higher than the other diagnostic groups. Our study indicated that the frequency of psychiatric consultation was high. This indicates the high demand for mental health services at the ED. A thorough psychiatric assessment can provide adequate psychiatric services to acute patients; thereby possibly preventing suicide attempters from later actually dying by suicide.