排序方式： 共有11条查询结果，搜索用时 31 毫秒
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Seitaro Kumamoto Kenshiro Nakatake Souichiro Fukuyama Keiichiro Yasuda Yusuke Kitamura Masaaki Iwatsuki Hideo Baba Toshihiro Ihara Yoshitaka Nakanishi Yuta Nakashima 《Biomicrofluidics》2020,14(6)
To study an environmental or biological solution, it is essential to separate its constituents. In this study, a 3D-deformable dynamic microfilter was developed to selectively separate the target substance from a solution. This microfilter is a fine metallic nickel structure fabricated using photolithography and electroplating techniques. It is gold-coated across its entire surface with multiple slits of 10–20 μm in width. Its two-dimensional shape is deformed into a three-dimensional shape when used for fluid separation due to hydrodynamic forces. By adjusting the pressure applied to the microfilter, the size of the gap created by deformation can be changed. To effectively isolate the target substance, the relationship between the solution flow rate and the extent of microfilter deformation was investigated. The filtration experiments demonstrated the microfilter’s ability to isolate the target substance with elastic deformation without undergoing plastic deformation. Additionally, modification of the microfilter surface with nucleic acid aptamers resulted in the selective isolation of the target cell, which further demonstrates the potential application of microfilters in the isolation of specific components of heterogeneous solutions. 相似文献
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Yusuke Mori Hiroaki Yamane Yoshitaka Ushiku Tatsuya Harada 《Information processing & management》2019,56(5):1865-1879
Creativity is considered a human characteristic; creative endeavors, including automatic story generation, have been a major challenge for artificial intelligences. To understand how humans create and evaluate stories, we (1) construct a story dataset and (2) analyze the relationship between emotions and story interestingness. Given that understanding how to move readers emotionally is a crucial creative technique, we focus on the role of emotions in evaluating reader satisfaction. Although conventional research has highlighted emotions read from a text, we hypothesize that readers’ emotions do not necessarily coincide with those of the characters. The story dataset created for this study describes situations surrounding two characters. Crowdsourced volunteers label stories with the emotions of the two characters and those of readers; we then empirically analyze the relationship between emotions and interestingness. The results show that a story’s score has a stronger relationship to the readers’ emotions than the characters’ emotions. 相似文献
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In Vietnam, despite the introduction of a new curriculum based on a child-centred education approach, there exist many problems and challenges in the educational process. To overcome these problems, the Vietnamese and Japanese governments have been conducting an in-service teacher-training programme, including school-based observation and reflection of lessons as a major activity. This study investigates the problems encountered in these schools. The results reveal that (1) the lesson is extremely fast-paced, (2) teachers tend to evaluate their colleagues and students, (3) teachers need to learn about how to learn and (4) promoting dialogue among teachers is considerably challenging. 相似文献
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为所有居民服务既是公立图书馆的原则,也是公立图书馆的理想,这个宗旨如何在美国实现,作者对此详细观察并深入分析其历史过程。尤其重视关注1960年美国公立图书馆行业对于为所有居民服务的思想认识变化过程。 相似文献
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Hierarchically porous monoliths based on copper (Cu), cobalt (Co) and manganese (Mn) oxides with three-dimensionally (3D) interconnected macropores and open nanopores were prepared using metal bromides as precursors via a sol–gel process accompanied by phase separation. The difficulty of gelation for low-valence metal cation was overcome by introducing a highly electronegative Br atom near to the metal atom to control the rates of hydrolysis and polycondensation. The 3D interconnected macropores were obtained using appropriate polymers to induce phase separation. The domain sizes of macropores and skeletons can be controlled by reaction parameters such as concentration and/or average molecular weight of polymers, and the amount of hydrochloric acid. The crystalline metal oxide monoliths with their 3D interconnected macroporous structure preserved were obtained after heat treatment in air. 相似文献
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Mōri Yoshitaka 《Inter-Asia Cultural Studies》2013,14(1):17-29
This paper examines new cultural and political movements that have developed outside of traditional leftist politics since the early 1990s in Japan. The new movements, including Dame‐ren, the Cardboard House Art movements in Shinjuku and recent anti‐war protests on the Iraqi war, were mainly led by young people, in particular, the freeter generation, who did not experience the leftist politics of the 1960s. These movements are different from traditional Marxist political ones and even from the new social movements in the 1960s and 1970s in the sense that they incorporate more cultural practices such as art, music, dance and performance into their political activities. The paper also explores the historical background against which the new movements were born and have developed since the end of the Bubble economy. It sees freeters, young part‐time workers, as emerging, new political actors that have appeared through the transition of a mode of production from Fordism to post‐Fordism. The transformation of society, economy and politics, known as ‘post‐modernization’ or recently as ‘globalization’, has asked us to re‐consider and re‐define the basic concepts such as class, proletariat, power, labour and work which we once shared. The paper tries to locate, through a critical examination, the new movements within a broader context of anti‐neo‐liberalism and anti‐globalization and find political potentiality within it. 相似文献