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Characterizing human driver characteristics using an artificial neural network and a theoretical model

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Control Theory and Technology 2022年第2期20卷 263-278页

作者： Sangmyoeng Kim Takeshi Miyamoto Tatsuya Kuboyama yasuo Moriyoshi Graduate School of Engineering Chiba University.1-33 Yayoicho InagekuChiba 2638522Japan

Human drivers seem to have different characteristics,so different drivers often yield different results from the same driving mode tests with identical vehicles and same chassis ***,drivers with different experiences often yield similar results under the same driving *** the features of human drivers are known,the control inputs to each driver,including warnings,will be customized to optimize each man–machine vehicle ***,it is crucial to determine how to characterize human drivers *** study proposes a method to estimate the parameters of a theoretical model of human *** method uses an artificial neural network(ANN)model and a numerical procedure to interpret the identified ANN models *** approach involves the following ***,we specify each ANN driver model through chassis dynamometer tests performed by each human driver and ***,we obtain the parameters of a theoretical driver model using the ANN model for the corresponding ***,we simulate the driver’s behaviors using the identified ANN models with controlled ***,we estimate the theoretical driver model parameters using the numerical simulation results.A proportional-integral-differential(PID)control model is used as the theoretical *** results of the parameter estimation indicate that the PID driver model parameter combination can characterize human ***,the results suggest that vehicular factors influence the parameter combinations of human drivers.

关键词： Neural network Identification Driver model Chassis dynamometer Driver characteristics

Metabolomics in liver diseases: A novel alternative for liver biopsy?

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World Journal of Hepatology 2024年第1期16卷 12-16页

作者： yasuo Tanaka Department of Gastroenterology National Center for Global Health and MedicineTokyo 162-8655Japan

Hepatitis C virus(HCV)remains a significant public health problem as it can cause acute and chronic *** HCV infection is a major cause of liver fibrosis,and evaluation of liver fibrosis is essential because the prognosis of patients with chronic HCV infection is closely related to the stage of *** fibrosis is traditionally evaluated based on pathological analysis of biopsy specimens,which is considered the gold ***,liver biopsy is invasive and susceptible to sampling error and inter-and intraobserver variation in pathological interpretation;it is also ***,noninvasive diagnostic investigations have been developed,including the use of fibrotic markers,scoring systems based on routine blood tests,and transient elastography with magnetic resonance imaging or ***,metabolomics,an emerging technology,has been used to detect the fibrosis *** this editorial,I comment on the article titled“Metabolomics in chronic hepatitis C:Decoding fibrosis grading and underlying pathways”by Ferrasi et al published in the recent issue of the World Journal of Hepatology.I discuss previous studies on the use of metabolome analysis for the diagnosis of HCV-related liver fibrosis and the potential development of biopsy-free diagnostic techniques.

关键词： Metabolomics Hepatitis C virus Liver fibrosis Liver cirrhosis Serum biomarker

Use of Asian selected agricultural byproducts to modulate rumen microbes and fermentation

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Journal of Animal Science and Biotechnology 2017年第2期8卷 317-326页

作者： yasuo Kobayashi Seongjin Oh Htun Myint Satoshi Koike Lab of Animal Function and Nutrition Research Faculty of AgricultureHokkaido UniversitySapporo 060-8589 Japan

In the last five decades, attempts have been made to improve rumen fermentation and host animal nutrition through modulation of rumen microbiota. The goals have been decreasing methane production, partially inhibiting protein degradation to avoid excess release of ammonia, and activation of fiber digestion. The main approach has been the use of dietary supplements. Since growth-promoting antibiotics were banned in European countries in2006, safer alternatives including plant-derived materials have been explored. Plant oils, their component fatty acids,plant secondary metabolites and other compounds have been studied, and many originate or are abundantly available in Asia as agricultural byproducts. In this review, the potency of selected byproducts in inhibition of methane production and protein degradation, and in stimulation of fiber degradation was described in relation to their modes of action. In particular, cashew and ginkgo byproducts containing alkylphenols to mitigate methane emission and bean husks as a source of functional fiber to boost the number of fiber-degrading bacteria were highlighted. Other byproducts influencing rumen microbiota and fermentation profile were also described. Future application of these feed and additive candidates is very dependent on a sufficient, cost-effective supply and optimal usage in feeding practice.

关键词： Agricultural byproduct Fermentation Fiber degradation Methane mitigation Microbiota Plant secondary metabolites Rumen

Molecular pathogenesis of sporadiccolorectal cancers

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Chinese Journal of Cancer 2016年第1期35卷 12-19页

作者： Hidetsugu Yamagishi Hajime Kuroda yasuo Imai Hideyuki Hiraishi Department of Diagnostic Pathology Dokkyo Medical University880 Kita‑KobayashiMibuShimotsugaTochigi 321‑0293Japan Department of Pathology International University of Health and Welfare Hospital537‑3 IguchiNasushiobaraTochigi 329‑2763Japan Department of Diagnostic Pathology Ota Memorial HospitalFuji Heavy Industries Health Insurance Society455‑1 OshimaOtaGunma 373‑8585Japan Department of Gastroenterology Dokkyo Medical University880 Kita‑KobayashiMibuShimotsugaTochigi 321‑0293Japan.

Colorectal cancer(CRC)results from the progressive accumulation of genetic and epigenetic alterations that lead to the transformation of normal colonic mucosa to *** 75%of CRCs are sporadic and occur in people without genetic predisposition or family history of *** the past two decades,sporadic CRCs were classified into three major groups according to frequently altered/mutated *** genes have been identified by linkage analyses of cancer-prone families and by individual mutation analyses of candidate genes selected on the basis of functional *** the first half of this review,we describe the genetic pathways of sporadic CRCs and their clinicopathologic ***,large-scale genome analyses have detected many infrequently mutated genes as well as a small number of frequently mutated *** infrequently mutated genes are likely described in a limited number of ***-oriented models of CRC progression are being replaced by pathway-oriented *** the second half of this review,we summarize the present knowledge of this research field and discuss its prospects.

关键词： Sporadic colorectal cancer, Pathogenesis, Morphology, Large-scale genome analysis, Genetic pathway

On Turbulent Contribution to Frictional Drag in Wall-Bounded Turbulent Flow

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Chinese Physics Letters 2006年第5期23卷 1226-1229页

作者：李凤臣 KAWAGUCHI yasuo HISHIDA Koichi OSHIMA Marie School of Energy Science and Engineering Harbin Institute of Technology Harbin 150001 Institute of Industrial Science The University of Tokyo Komaba 4-6-1 Meguro-ku Tokyo 153-8505 Japan Department of Mechanical Engineering Tokyo University of Science Yamazaki 2641 Noda Chiba 278-8510 Japan Department of System Design Engineering Keio University Yokohama 223-8522 Japan

We propose a simple model for turbulent contribution to the frictional drag in a wall-bounded turbulent flow based on the characteristic parameters of turbulent bursting events, it is verified on water and drag-reducing surfactant solution flows investigated by particle image velocimetry in experiments. It is obtained that the turbulent contribution to the skin friction factor is linearly proportional to the product of the spatial frequency and strength of turbulent bursts originated from the wall.

关键词： DIRECT NUMERICAL-SIMULATION PARTICLE IMAGE VELOCIMETRY LOW-REYNOLDS-NUMBER CHANNEL FLOW LAYER STRESS EXCHANGE PACKETS MOTIONS GROWTH

Brownian Dynamics Simulation of Microstructures and Elongational Viscosities of Micellar Surfactant Solution

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Chinese Physics Letters 2008年第12期25卷 4469-4472页

作者：魏进家 KAWAGUCHI yasuo 宇波李凤臣 State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Department of Mechanical Engineering Faculty of Science and Technology Tokyo University of Science Noda Chiba 2788-510 Japan Beijing Key Laboratory of Urban Oil and Gas Distribution Technology China University of Petroleum (Beijing) Beijing 102249 School of Energy Science and Engineering Harbin Institute of Technology Harbin 150001

Brownian dynamics simulation is conducted for a dilute surfactant solution under a steady uniaxial elongational flow. A new inter-cluster potential is used for the interaction among surfactant micelles to determine the micellar network structures in the surfactant solution. The micellar network is successfully simulated. It is formed at low elongation rates and destroyed by high elongation rates. The computed elongational viscosities show elongation- thinning characteristics. The relationship between the elongational viscosities and the mierostructure of the surfactant solution is revealed.

关键词： field emission molybdenum dioxide enhancement factor

Future Applications of GaN Electron Devices

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半导体技术 2008年第S1期33卷 72-74,79页

作者： Ohno yasuo Institute of Technology and Science the University of Tokushima

0 Introduction Fifteen years have passed since the first AlGaN/GaN HFET was reported in *** FETs have already commercialized as microwave power devices,but volume production has not yet *** main application field is mobile phone base *** such applications,GaAs power transistors and silicon LDMOS have already been ***,advantages compared with these existing devices will be required,such as high efficiency,low distortion,low noise,high reliability and,especially,low ***,the latter two items are normally difficult for devices using new materials.

关键词： GaN In Future Applications of GaN Electron Devices

Refractory Metal Nitride Schottky Contact on GaN

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半导体技术 2008年第S1期33卷 75-79页

作者： Ohno yasuo Institute of Technology and Science the University of Tokushima

For thermally stable or high-temperature operating,Schottky contact utilizing refractory metal nitride,TiN,MoN and ZrN,on n-GaN were *** refractory metal nitride films were formed by reactive sputtering in Ar and N2 ***-voltage characteristics show that ideality factors of 1.09-1.22 and barrier heights of 0.66-0.75 eV was obtained for the three metal *** the ZrN contact,the ideality factor and barrier height of became 1.06 and 0.77 eV,respectively,after 800 ℃ ***/GaN heterostructure FET with TiN gate was also *** obvious degradation was found for the TiN-gate device even after thermal treatment at 850 ℃.This shows that Schottky contact utilizing refractory metal nitride on GaN has the potential for thermal stability or high-temperature operating.

关键词： refractory metal nitride GaN Schottky contact Schottky diode

Reduction of Rejection Floor of Filter for Ultimate Spectral Efficiency in DWDM Systems

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光学学报 2003年第S1期23卷 548-549页

作者： Shuichi Suzuki yasuo Kokubun Yokohama National Univ. Graduate School of Eng. Dept. of Electr. & Comp. Eng. 79-5 Tokiwadai Hodogayaku Yokohama JAPAN 240-8501Yokohama National Univ. Graduate School of Eng. Dept. of Electr. & Comp. Eng. 79-5 Tokiwadai Hodogayaku Yokohama JAPAN 240-8501

The requirement of the rejection floor level in the wavelength filter was clarified to achieve the ultimate spectral efficiency in DWDM systems. A cascaded filter can satisfy this condition.

关键词： for of DWDM in