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Chinese Chemical Letters 2015年第2期26卷 167-172页

作者： Isao noda Department of Materials Science & Engineering University of Delaware

Recent noteworthy developments in the field of two-dimensional（2D） correlation spectroscopy are reviewed.2D correlation spectroscopy has become a very popular tool due to its versatility and relative ease of *** technique utilizes a spectroscopic or other analytical probe from a number of selections for a broad range of sample systems by employing different types of external perturbations to induce systematic variations in intensities of *** spectral intensity variations are then converted into2 D spectra by a form of correlation analysis for subsequent *** different types of 2D correlation approaches have been *** particular,2D hetero-correlation and multiple perturbation correlation analyses,including orthogonal sample design scheme,are discussed in this *** references to other important developments in the field of 2D correlation spectroscopy,such as projection correlation and codistribution analysis,were also provided.

关键词： Two-dimensional correlation spectroscopy Hetero-correlation Multiple perturbation correlation Orthogonal sample design

Electron transfer governed by light-matter interaction at metal-semiconductor interface

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npj Computational Materials 2020年第1期6卷 1628-1635页

作者： Kenji Iida Masashi noda Department of Theoretical and Computational Molecular Science Institute for Molecular ScienceMyodaijiOkazaki 444-8585Japan Center for Computational Sciences University of Tsukuba1-1-1 TennodaiTsukuba 305-8577Japan

The photoexcitation of heterostructures consisting of metallic nanoclusters and a semiconductor has been extensively investigated in relation to interests in photocatalysis and optical *** optoelectronic functions of the heterostructures originate from localized surface plasmon resonance,which can induce electron and resonance energy *** it is well known that photoinduced electronic interaction between a metallic nanocluster and a semiconductor is responsible for the resonance energy transfer,the electron transfer associated with the photoinduced electronic interaction has not been *** this paper,we elucidate the photoexcitation dynamics of a silver nanocluster/TiO_(2) heterostructure using an original first-principles computational approach that explicitly deals with light–matter *** is shown that the photoinduced silver–TiO_(2) electronic interaction causes excited electrons to be directly transferred from the silver nanocluster to the TiO2 layer without passing through the conduction band of the silver nanocluster.

关键词： silver interaction transfer

Effects of wing deformation on aerodynamic performance of a revolving insect wing

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Acta Mechanica Sinica 2014年第6期30卷 819-827页

作者： Ryusuke noda Toshiyuki Nakata Hao Liu Graduate School of Engineering Chiba University 1-33 Yayoi-cho Inage-ku Chiba Japan Shanghai Jiao Tong University and Chiba University International Cooperative Research Center (SJTU-CUICRC) Structure and Motion Laboratory The Royal Veterinary CollegeUniversity of London Hawkshead LaneNorth Mymms Hatfield AL9 7TA United Kingdom

Flexible wings of insects and bio-inspired micro air vehicles generally deform remarkably during flapping flight owing to aerodynamic and inertial forces,which is of highly nonlinear fluid-structure interaction（FSI）*** elucidate the novel mechanisms associated with flexible wing aerodynamics in the low Reynolds number regime,we have built up a FSI model of a hawkmoth wing undergoing revolving and made an investigation on the effects of flexible wing deformation on aerodynamic performance of the revolving wing *** take into account the characteristics of flapping wing kinematics we designed a kinematic model for the revolving wing in two-fold：acceleration and steady rotation,which are based on hovering wing kinematics of hawkmoth,Manduca *** results show that both aerodynamic and inertial forces demonstrate a pronounced increase during acceleration phase,which results in a significant wing *** the aerodynamic force turns to reduce after the wing acceleration terminates due to the burst and detachment of leading-edge vortices（LEVs）,the dynamic wing deformation seem to delay the burst of LEVs and hence to augment the aerodynamic force during and even after the *** the phase of steady rotation,the flexible wing model generates more ver-tical force at higher angles of attack（40°–60°）but less horizontal force than those of a rigid wing *** is because the wing twist in spanwise owing to aerodynamic forces results in a reduction in the effective angle of attack at wing tip,which leads to enhancing the aerodynamics performance by increasing the vertical force while reducing the horizontal ***,our results point out the importance of the fluid-structure interaction in evaluating flexible wing aerodynamics：the wing deformation does play a significant role in enhancing the aerodynamic performances but works differently during acceleration and steady rotation,which is mainly induced by inertial force in accelerati

关键词： Insect flight Flexible wing Revolving wing Fluid-structure interaction

Gravitational effects on global hemodynamics in different postures:A closed-loop multiscale mathematical analysis

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Acta Mechanica Sinica 2017年第3期33卷 595-618页

作者： Xiancheng Zhang Shigeho noda Ryutaro Himeno Hao Liu Graduate School of Engineering Chiba University Computational Science Research Program RIKEN Shanghai Jiao Tong University and Chiba University International Cooperative Research Center (SJTU-CU ICRC)

We present a novel methodology and strategy to predict pressures and flow rates in the global cardiovascular network in different postures varying from supine to upright. A closed-loop, multiscale mathematical model of the entire cardiovascular system (CVS) is developed through an integration of one-dimensional (1D) modeling of the large systemic arteries and veins, and zero-dimensional (0D) lumped-parameter modeling of the heart, the cardiac-pulmonary circulation, the cardiac and venous valves, as well as the microcirculation. A versatile junction model is proposed and incorporated into the 1D model to cope with splitting and/or merging flows across a multibranched junction, which is validated to be capable of estimating both subcritical and supercritical flows while ensuring the mass conservation and total pressure continuity. To model gravitational effects on global hemodynamics during postural change, a robust venous valve model is further established for the 1D venous flows and distributed throughout the entire venous network with consideration of its anatomically realistic numbers and locations. The present integrated model is proven to enable reasonable prediction of pressure and flow rate waveforms associated with cardiopulmonary circulation, systemic circulation in arteries and veins, as well as microcirculation within normal physiological ranges, particularly in mean venous pressures, which well match the in vivo measurements. Applications of the cardiovascular model at different postures demonstrate that gravity exerts remarkable influence on arterial and venous pressures, venous returns and cardiac outputs whereas venous pressures below the heart level show a specific correlation between central venous and hydrostatic pressures in right atrium and veins.

关键词： Gravitational effects Cardiovascular system (CVS) Postural change Multiscale cardiovascular model Multibranched junction model Venous valve

A simulation-based study on longitudinal gust response of flexible flapping wings

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Acta Mechanica Sinica 2018年第6期34卷 1048-1060页

作者： Toshiyuki Nakata Ryusuke noda Shinobu Kumagai Hao Liu Graduate School of Engineering Chiba UniversityChiba 263-8522Japan Department of Mechanical Engineering Kanto Gakuin UniversityKanagawa 263-8501Japan

Winged animals such as insects are capable of flying and surviving in an unsteady and unpredictable aerial *** generate and control aerodynamic forces by flapping their flexible *** the dynamic shape changes of their flapping wings are known to enhance the efficiency of their flight,they can also affect the stability of a flapping wing flyer under unpredictable disturbances by responding to the sudden changes of aerodynamic forces on the *** order to test the hypothesis,the gust response of flexible flapping wings is investigated numerically with a specific focus on the passive maintenance of aerodynamic forces by the wing *** computational model is based on a dynamic flight simulator that can incorporate the realistic morphology,the kinematics,the structural dynamics,the aerodynamics and the fluid-structure interactions of a hovering *** longitudinal gusts are imposed against the tethered model of a hovering hawkmoth with flexible flapping *** is found that the aerodynamic forces on the flapping wings are affected by the gust,because of the increase or decrease in relative wingtip velocity or kinematic angle of *** passive shape change of flexible wings can,however,reduce the changes in the magnitude and direction of aerodynamic forces by the gusts from various directions,except for the downward *** adaptive response of the flexible structure to stabilise the attitude can be classified into the mechanical feedback,which works passively with minimal delay,and is of great importance to the design of bio-inspired flapping wings for micro-air vehicles.

关键词： Insect flight Flapping wing Flexible wing Gust response Fluid-structure interaction Mechanical feedback

Evolution of Two-Dimensional Correlation Spectroscopy

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光谱学与光谱分析 2016年第S1期36卷 3-4页

作者： Isao noda Department of Materials Science and Engineering University of Delaware

A number of useful techniques associated with two-dimensional correlation spectroscopy(2DCOS)to improve its performance and utility have been developed in the last *** of these 2DCOS techniques,including some of the very recent developments,is reviewed with *** include merged or modified asynchronous 2Dcorrelation spectrum,two-dimensional codistribution spectroscopy(2DCDS),Pareto scaling,and null-space projection treatment of spectral dataset.

关键词： Two-dimensional correlation spectroscopy 2DCOS 2DCDS Merged 2D Pareto scaling Nullspace projection

Differential effects of physical activity and sleep duration on cognitive function in young adults

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Journal of Sport and Health Science 2018年第2期7卷 227-236页

作者： Kazuko Kato Kunihiro Iwamoto Naoko Kawano Yukihiro noda Norio Ozaki Akiko noda Department of Biomedical Sciences Chubu University Graduate School of Life and Health Sciences Department of Psychiatry Nagoya University Graduate School of Medicine Institutes of Innovation for Future Society Nagoya University Division of Clinical Sciences and Neuropsychopharmacology Graduate School of PharmacyMeijo University

Purpose: Although exercise and sleep duration habits are associated with cognitive function, their beneficial effects on cognitive function remain unclear. We aimed to examine the effect of sleep duration and daily physical activity on cognitive function, elucidating the neural mechanisms using near-infrared spectroscopy(NIRS).Methods: A total of 23 healthy young adults(age 22.0 ± 2.2 years) participated in this study. Exercise amount was assessed using a uniaxial accelerometer. We evaluated total sleep time(TST) and sleep efficiency by actigraphy. Cognitive function was tested using the N-back task, the Wisconsin Card Sorting Test(WCST), and the Continuous Performance Test—Identical Pairs(CPT-IP), and the cortical oxygenated hemoglobin levels during a word fluency task were measured with ***: Exercise amount was significantly correlated with reaction time on 0- and 1-back tasks(r = —0.602, p = 0.002; r = —0.446, p = 0.033,respectively), whereas TST was significantly correlated with % corrects on the 2-back task(r = 0.486, p = 0.019). Multiple regression analysis,including exercise amount, TST, and sleep efficiency, revealed that exercise amount was the most significant factor for reaction time on 0- and 1-back tasks(b = —0.634, p = 0.002; b = —0.454, p = 0.031, respectively), and TST was the most significant factor for % corrects on the 2-back task(b = 0.542, p = 0.014). The parameter measured by WCST and CPT-IP was not significantly correlated with TST or exercise amount. Exercise amount, but not TST, was significantly correlated with the mean area under the NIRS curve in the prefrontal area(r = 0.492, p = 0.017).Conclusion: Exercise amount and TST had differential effects on working memory and cortical activation in the prefrontal area. Daily physical activity and appropriate sleep duration may play an important role in working memory.

关键词： Cortical oxygenation Executive function Exercise Sustained attention Total sleep time Working memory

Role of pleiotrophin-protein tyrosine phosphatase receptor type Z signaling in myelination

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Neural Regeneration Research 2016年第4期11卷 549-551页

作者： Akihiro Fujikawa Masaharu noda Division of Molecular Neurobiology National Institute for Basic BiologyThe Graduate University for Advanced Studies (SOKENDAI) School of Life Science The Graduate University for Advanced Studies (SOKENDAI)

Myelination is an essential feature of the vertebrate nervous system that provides electrical insulation to axons,thereby facilitating the transmission of nerve *** in myelination in diseases such as multiple sclerosi... 详细信息

关键词： Role of pleiotrophin-protein tyrosine phosphatase receptor type Z signaling in myelination type PTP Figure

SINGLE AND DOUBLE EDGE INTERFACE CRACK SOLUTIONS FOR ARBITRARY FORMS OF MATERIAL COMBINATION

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Acta Mechanica Solida Sinica 2012年第4期25卷 404-416页

作者： Xin Lan Nao-Aki noda Kengo Michinaka Department of Mechanical Engineering Kyushu Institute of Technology

In this paper interfacial edge crack problems are considered by the application of the finite element method. The stress intensity factors are accurately determined from the ratio of crack-tip-stress value between the target given unknown and reference problems. The reference problem is chosen to produce the singular stress fields proportional to those of the given unknown problem. Here the original proportional method is improved through utilizing very refined meshes and post-processing technique of linear extrapolation. The results for a double-edge interface crack in a bonded strip are newly obtained and compared with those of a single-edge interface crack for different forms of combination of material. It is found that the stress intensity factors should be compared in the three different zones of relative crack lengths. Different from the case of a cracked homogeneous strip, the results for the double edge interface cracks are found to possibly be bigger than those for a single edge interface crack under the same relative crack length.

关键词： stress intensity factor single edge interface crack double edge interface crack combination of material bonded strip