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1.
Nobuyuki?KobayashiEmail author Tsubasa?Wago Yoshiki?Sugawara 《Multibody System Dynamics》2011,26(3):265-281
A method of reducing the system matrices of a planar flexible beam described by an absolute nodal coordinate formulation (ANCF)
is presented. In this method, we focus that the bending stiffness matrix expressed by adopting a continuum mechanics approach
to the ANCF beam element is constant when the axial strain is not very large. This feature allows to apply the Craig–Bampton
method to the equation of motion that is composed of the independent coordinates when the constraint forces are eliminated.
Four numerical examples that compare the proposed method and the conventional ANCF are demonstrated to verify the performance
and accuracy of the proposed method. From these examples, it is verified that the proposed method can describe the large deformation
effects such as dynamic stiffening due to the centrifugal force, as well as the conventional ANCF does. The use of this method
also reduces the computing time, while maintaining an acceptable degree of accuracy for the expression characteristics of
the conventional ANCF when the modal truncation number is adequately employed. This reduction in CPU time particularly pronounced
in the case of a large element number and small modal truncation number; the reduction can be verified not only in the case
of small deformation but also in the case of a fair bit large deformation. 相似文献
2.
Back Cover: Tailored Synthesis of 162‐Residue S‐Monoglycosylated GM2‐Activator Protein (GM2AP) Analogues that Allows Facile Access to a Protein Library (ChemBioChem 20/2016) 下载免费PDF全文
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Photoreduction of Shewanella oneidensis Extracellular Cytochromes by Organic Chromophores and Dye‐Sensitized TiO2 下载免费PDF全文
Emma V. Ainsworth Dr. Colin W. J. Lockwood Dr. Gaye F. White Dr. Ee Taek Hwang Dr. Tsubasa Sakai Manuela A. Gross Prof. David J. Richardson Dr. Thomas A. Clarke Dr. Lars J. C. Jeuken Dr. Erwin Reisner Prof. Julea N. Butt 《Chembiochem : a European journal of chemical biology》2016,17(24):2324-2333
The transfer of photoenergized electrons from extracellular photosensitizers across a bacterial cell envelope to drive intracellular chemical transformations represents an attractive way to harness nature's catalytic machinery for solar‐assisted chemical synthesis. In Shewanella oneidensis MR‐1 (MR‐1), trans‐outer‐membrane electron transfer is performed by the extracellular cytochromes MtrC and OmcA acting together with the outer‐membrane‐spanning porin ? cytochrome complex (MtrAB). Here we demonstrate photoreduction of solutions of MtrC, OmcA, and the MtrCAB complex by soluble photosensitizers: namely, eosin Y, fluorescein, proflavine, flavin, and adenine dinucleotide, as well as by riboflavin and flavin mononucleotide, two compounds secreted by MR‐1. We show photoreduction of MtrC and OmcA adsorbed on RuII‐dye‐sensitized TiO2 nanoparticles and that these protein‐coated particles perform photocatalytic reduction of solutions of MtrC, OmcA, and MtrCAB. These findings provide a framework for informed development of strategies for using the outer‐membrane‐associated cytochromes of MR‐1 for solar‐driven microbial synthesis in natural and engineered bacteria. 相似文献
4.
CFD modeling of snowdrift around a building: An overview of models and evaluation of a new approach 总被引:1,自引:0,他引:1
The first part of this paper provides an overview of Computational Fluid Dynamics (CFD) modeling of snowdrift around a building by reviewing previous research including the authors’ in order to clarify its applicability and limitations. It is clarified that a quantitative validation study in particular by predicting snow depth distribution near a building is not enough, even though many models have been proposed. The latter part presents the results of CFD prediction of snowdrift around a cubic building model using a new approach of a snowdrift model based on experimental and numerical studies by the authors. The numerical results are compared with data obtained from detailed field measurements and previous CFD in order to confirm the accuracy of the new model. This new approach shows good correspondence with results obtained from field measurements and wind tunnel experiments in terms of not only snowdrift patterns but also quantitative distribution of snow depth. 相似文献
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Shuichi Nakamura Ayaka Toda Masahide Sano Tsubasa Hatanaka Yasuhiro Funahashi 《Advanced Synthesis \u0026amp; Catalysis》2016,358(7):1029-1034
We disclose herein an efficient enantioselective conjugate addition reaction between coumarin‐3‐carboxylic acids and malonic acid half thioesters (MAHTs). The reaction was catalyzed by N‐heteroarenesulfonyl Cinchona alkaloid amides to afford double‐decarboxylative conjugate addition products in good yield with high enantioselectivity. The reaction of various coumarin‐3‐carboxylic acids with MAHTs gave products in high yield with high enantioselectivity.
7.
Long‐Lived Flexible Displays Employing Efficient and Stable Inverted Organic Light‐Emitting Diodes 下载免费PDF全文
Hirohiko Fukagawa Tsubasa Sasaki Toshimitsu Tsuzuki Yoshiki Nakajima Tatsuya Takei Genichi Motomura Munehiro Hasegawa Katsuyuki Morii Takahisa Shimizu 《Advanced materials (Deerfield Beach, Fla.)》2018,30(28)
Although organic light‐emitting diodes (OLEDs) are promising for use in applications such as in flexible displays, reports of long‐lived flexible OLED‐based devices are limited due to the poor environmental stability of OLEDs. Flexible substrates such as plastic allow ambient oxygen and moisture to permeate into devices, which degrades the alkali metals used for the electron‐injection layer in conventional OLEDs (cOLEDs). Here, the fabrication of a long‐lived flexible display is reported using efficient and stable inverted OLEDs (iOLEDs), in which electrons can be effectively injected without the use of alkali metals. The flexible display employing iOLEDs can emit light for over 1 year with simplified encapsulation, whereas a flexible display employing cOLEDs exhibits almost no luminescence after only 21 d with the same encapsulation. These results demonstrate the great potential of iOLEDs to replace cOLEDs employing alkali metals for use in a wide variety of flexible organic optoelectronic devices. 相似文献
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Toshiyuki Nagata Kentaro Minami Masatatsu Yamamoto Tsubasa Hiraki Masashi Idogawa Katsumi Fujimoto Shun Kageyama Kazuhiro Tabata Kohichi Kawahara Kazuhiro Ueda Ryuji Ikeda Yukio Kato Masaaki Komatsu Akihide Tanimoto Tatsuhiko Furukawa Masami Sato 《International journal of molecular sciences》2021,22(21)
10.
Translucent CaGa2S4:Ce thin films were prepared by pulsed laser deposition. Optical absorption associated with the 4f1 (2F5/2) to 5d2 second-highest excited state transition of the Ce3+ ion was clearly observed at 3.60 eV as well as the 4f1 (2F5/2) to 5d1 lowest excited state transition at 2.93 eV. Energy splitting of the 5d state by the crystal field is discussed in terms of a model of a square antiprism structure with D4d symmetry. 相似文献