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Feng, Yang ; Han, Yiwen ; Qing, Fan ; Zhang, Xinping ; Liu, Jianjun
概要:
To rapidly and clearly define the knowledge structure, research focus, and research trends in the field of ecological planning and design, the bibliometric method was combined with visualization tools to conduct a classified statistical
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study of 712 articles on ecological planning and design in the core database of Web of Science (WoS) from 1992 to 2017, making a contrastive analysis of information like the author, journal, research institution, country, keywords of those articles from three perspectives, namely co-authorship analysis, co-citation analysis, and co-words analysis. Three conclusions were drawn. First, academic exchanges and cooperation in the field of ecological planning and design should be strengthened between countries and scientific research institutions, especially China and its research institutions should actively participate in such exchanges and cooperation, and scholars are expected to seize the opportunities to cooperate with each other in research and practice in this field. Second, as developed European and American countries outweigh Asian countries in terms of research results and overall influence in the field of ecological planning and design, the popularity and influence of journals from Asian countries need to be improved, particularly as they study and report on ecosystem services. Third, as research on ecological planning and design become increasingly systematic, comprehensive, and humanistic, resilience has become a research hotspot in this field in recent years, thus enough attention should be paid to this aspect. Finally, the author hopes that the combination of visualization tools and the bibliometric method can foster enlightenment and research ideas among researchers and practitioners in this field.
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藤井, 康彦 ; 木村, 繁男 ; 齋藤, 隆之 ; 木綿, 隆弘 ; 松村, 和彦
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Recently, the noise caused by the refrigerant fluid is spotlighted due to the demand of low noise home and office air conditioners. Especially, reduction of refrigerant fluid noise and vibration noise generated from throttle in the
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expansion valve is becoming important. Therefore in this study it is intended to resolve fluctuating phenomena of fluid, which may be the cause of noise, by flow visualization and measurement of fluid pressure and temperature at throttle valves, focusing on two-phase flow of refrigerant fluid. A test equipment suitable for flow visualization of R410a refrigerant was developed by epoch making design and manufacturing method. Visualization was realized by laser beam irradiated on the visualization equipment and by high-speed video camera. Test conditions are set of combinations of 4 different conditions of compressor revolution and 4 different conditions of valve opening of expansion valve. As results of the following conclusions are drawn. (1)A visualization technique of throttle of expansion valve has been developed by manufacturing visualization equipment, which is most suitable to the test. (2)It has been confirmed that refrigerants is liquid and two-phase condition in the upstream of throttle, where a needle is inserted and that refrigerant fluid flow in two-phase in the downstream of throttle.
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藤井, 康彦 ; 木村, 繁男 ; 齋藤, 隆之 ; 木綿, 隆弘 ; 松村, 和彦
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Ando, Toshio ; Kodera, Noriyuki
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Intrinsically disordered regions (IDRs) of proteins are very thin and hence hard to be visualized by electron microscopy
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. Thus far, only high-speed atomic force microscopy (HS-AFM) can visualize them. The molecular movies identify the alignment of IDRs and ordered regions in an intrinsically disordered protein (IDP) and show undulation motion of the IDRs. The visualized tail-like structures contain the information of mechanical properties of the IDRs. Here, we describe methods of HS-AFM visualization of IDPs and methods of analyzing the obtained images to characterize IDRs. © 2012 Springer Science+Business Media New York.
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Ando, Toshio ; Uchihashi, Takayuki ; Fukuma, Takeshi
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金沢大学理工研究域数物科学系<br />The atomic force microscope (AFM) has a unique capability of allowing the high-resolution imaging of
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biological samples on substratum surfaces in physiological solutions. Recent technological progress of AFM in biological research has resulted in remarkable improvements in both the imaging rate and the tip force acting on the sample. These improvements have enabled the direct visualization of dynamic structural changes and dynamic interactions occurring in individual biological macromolecules, which is currently not possible with other techniques. Therefore, high-speed AFM is expected to have a revolutionary impact on biological sciences. In addition, the recently achieved atomic-resolution in liquids will further expand the usefulness of AFM in biological research. In this article, we first describe the various capabilities required of AFM in biological sciences, which is followed by a detailed description of various devices and techniques developed for high-speed AFM and atomic-resolution in-liquid AFM. We then describe various imaging studies performed using our cutting-edge microscopes and their current capabilities as well as their limitations, and conclude by discussing the future prospects of AFM as an imaging tool in biological research. © 2008 Elsevier Ltd. All rights reserved.
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