著者
国際評論社
出版者
国際評論社
巻号頁・発行日
vol.24(5), no.273, 1987-03

1 0 0 0 OA 秘書類纂

著者
伊藤博文 編
出版者
秘書類纂刊行会
巻号頁・発行日
vol.〔第21巻〕, 1936
著者
Toshihiko Takemura Hisashi Nakamura Masayuki Takigawa Hiroaki Kondo Takehiko Satomura Takafumi Miyasaka Teruyuki Nakajima
出版者
Meteorological Society of Japan
雑誌
SOLA (ISSN:13496476)
巻号頁・発行日
vol.7, pp.101-104, 2011 (Released:2011-07-02)
参考文献数
13
被引用文献数
72 80

The powerful tsunami generated by the massive earthquake that occurred east of Japan on March 11, 2011 caused serious damages of the Fukushima Daiichi Nuclear Power Plant on its cooling facilities for nuclear reactors. Hydrogen and vapor blasts that occurred until March 15 outside of the reactors led to the emission of radioactive materials into the air. Here we show a numerical simulation for the long-range transport from the plant to the U.S. and even Europe with a global aerosol transport model SPRINTARS. Large-scale updraft organized by a low-pressure system traveling across Japan from March 14 to 15 was found effective in lifting the particles from the surface layer to the level of a westerly jet stream that could carry the particles across the Pacific within 3 to 4 days. Their simulated concentration rapidly decreases to the order of 10-8 of its initial level, consistent with the level detected in California on March 18. The simulation also reproduces the subsequent trans-Atlantic transport of those particles by a poleward-deflected jet stream, first toward Iceland and then southward to continental Europe as actually observed.
著者
西條 八十[作詞]
出版者
コロムビア(戦前)
巻号頁・発行日
1939-07
著者
Toru KANNO Ryoko ISHIHARA Shinichi HATAMA Ikuo UCHIDA
出版者
JAPANESE SOCIETY OF VETERINARY SCIENCE
雑誌
Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日
vol.80, no.7, pp.1134-1137, 2018 (Released:2018-07-12)
参考文献数
22
被引用文献数
14 16

A long-term animal experiment involving inoculation with bovine coronavirus (BCoV) was conducted to verify its persistent infection in cattle. Three colostrum-deprived Holstein calves were housed separately in individual rooms of a high-containment facility and inoculated with the BCoV strain Kumamoto/1/07. Until the end of the experiment (1,085, 700 and 280 days, respectively), viral RNAs were detected sporadically by RT-PCR and nested PCR from plasma, nasal discharge, and feces. Seroconversion and titer changes were validated by hemagglutination inhibition tests and neutralization tests. Among the samples, nasal discharge showed a higher viral positivity than feces, which seemed to be associated with positive detection in the plasma. These data demonstrate the existence of persistent infection of BCoV in the respiratory tissues of cattle.
著者
Seiji YUKIMOTO Hideaki KAWAI Tsuyoshi KOSHIRO Naga OSHIMA Kohei YOSHIDA Shogo URAKAWA Hiroyuki TSUJINO Makoto DEUSHI Taichu TANAKA Masahiro HOSAKA Shokichi YABU Hiromasa YOSHIMURA Eiki SHINDO Ryo MIZUTA Atsushi OBATA Yukimasa ADACHI Masayoshi ISHII
出版者
Meteorological Society of Japan
雑誌
気象集誌. 第2輯 (ISSN:00261165)
巻号頁・発行日
vol.97, no.5, pp.931-965, 2019 (Released:2019-09-19)
参考文献数
135
被引用文献数
212 441

The new Meteorological Research Institute Earth System Model version 2.0 (MRI-ESM2.0) has been developed based on previous models, MRI-CGCM3 and MRI-ESM1, which participated in the fifth phase of the Coupled Model Intercomparison Project (CMIP5). These models underwent numerous improvements meant for highly accurate climate reproducibility. This paper describes model formulation updates and evaluates basic performance of its physical components. The new model has nominal horizontal resolutions of 100 km for atmosphere and ocean components, similar to the previous models. The atmospheric vertical resolution is 80 layers, which is enhanced from the 48 layers of its predecessor. Accumulation of various improvements concerning clouds, such as a new stratocumulus cloud scheme, led to remarkable reduction in errors in shortwave, longwave, and net radiation at the top of the atmosphere. The resulting errors are sufficiently small compared with those in the CMIP5 models. The improved radiation distribution brings the accurate meridional heat transport required for the ocean and contributes to a reduced surface air temperature (SAT) bias. MRI-ESM2.0 displays realistic reproduction of both mean climate and interannual variability. For instance, the stratospheric quasi-biennial oscillation can now be realistically expressed through the enhanced vertical resolution and introduction of non-orographic gravity wave drag parameterization. For the historical experiment, MRI-ESM2.0 reasonably reproduces global SAT change for recent decades; however, cooling in the 1950s through the 1960s and warming afterward are overestimated compared with observations. MRI-ESM2.0 has been improved in many aspects over the previous models, MRI-CGCM3 and MRI-ESM1, and is expected to demonstrate superior performance in many experiments planned for CMIP6.
著者
伴 祐樹 櫻井 翔 鳴海 拓志 谷川 智洋 廣瀬 通孝
出版者
特定非営利活動法人 日本バーチャルリアリティ学会
雑誌
日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)
巻号頁・発行日
vol.21, no.1, pp.109-120, 2016-03-31 (Released:2017-02-01)

The main contribution of this paper is establishing the method to enhance work efficiency unconsciously by controlling the time rate that a virtual clock shows. Recently, it has been revealed that work efficiency is influenced by various environmental factors such as work environment's atmosphere, temperature and so on. On the contrary, it has become clear that the work rate is affected by a time sensation. While working, the more amount of information we process in a limited time, the longer elapsed time we perceive. Besides, the higher cognitive load we get from difficult works, the longer elapsed time we perceive. In this way, a perception of time rate and a cognitive load of works affect each other. In this study, we focus on a "clock" as a tool, which gives the recognition of time rate and length for everyone mutually. We propose a method to improve a person's work efficiency, especially work rate unconsciously by giving an illusion of false sense of the passaged time by a virtual clock that displays the time rate that differ from real one visually. We conducted experiments to investigate the influence of the changes in the displayed virtual time rate on time perception and work efficiency. Besides, to evaluate an effect of an implication of a "clock", we conducted the counter experiments with a flicker stimulus and a reversely rotated virtual clock. The experimental results showed that by displaying the accelerated time rate, it is possible to improve work efficiency with constant time perception, and a "clock" is critical for enhancing work rate.
著者
柳川 浩三
出版者
関東甲信越英語教育学会
雑誌
関東甲信越英語教育学会誌 (ISSN:21858993)
巻号頁・発行日
vol.32, pp.1-14, 2018 (Released:2019-03-31)
参考文献数
23

This study aimed to reveal a) whether the Five Sentence Types (FST) contributes to improving the proficiency level of Japanese learners of EFL (English as a Foreign Language) and b) how their parsing of English sentences varies depending on their understanding of FST. The FST has long been a cornerstone of English Language Teaching (ELT) in Japanese secondary schools, and it is believed to represent five major sentence types in English, based on the form of the main verb and the predicate that follows. Little research, however, has been conducted into whether or to what extent the FST contributes to L2 development, and how differently EFL learners parse English sentences according to the FST. A total of 570 university or college students, mainly the first- or second-year students, participated in this study in response to an originally constructed “Basic Grammar Test” (BGT) of 36 items. Cluster analysis identified five different groups among the 570 students who share the parsing, and two-way ANOVA showed that interactional effect was found between skills (i.e., listening and reading) and groups. The simple main effect was statistically significant on reading proficiency but on listening proficiency, suggesting that the FST may contribute to enhancing reading proficiency but listening proficiency. The results of multiple comparison, however, showed that the effect is limited since statistically significant difference was not necessarily found across the groups. Correspondence analysis revealed that Japanese learners of EFL have difficulties in recognizing transitive verbs followed by an object, particularly when the object is to-infinitive and that-clause. Resulting discussions explore how FST instruction should be incorporated into ELT at the secondary and tertiary levels.