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Blind Spot Obstacle Detection fr.m Monocular.Camer. Images with Depth Cues Extr.cted by CNN

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Automotive Innovation 2018年第4期1卷 362-373页

作者： Yuxiang Guo Itsuo kumazawa Chuyo Kaku Depar.ment of Infor.ation and Communication Engineer.ng Tokyo Institute of TechnologyTokyo 152-8550Japan r.sear.h and Development Center LBN Corporation Ltd.Shanghai 200233China

The images fr.m a monocular.camer. can be pr.cessed to detect depth infor.ation r.gar.ing obstacles in the blind spot ar.a captur.d by the side-view camer. of a *** depth infor.ation is given as a classification r.sult“near.or.far.when two blocks in the image ar. compar.d with r.spect to their.distances and the depth infor.ation can be used for.the pur.ose of blind spot ar.a *** this paper.the pr.posed depth infor.ation is infer.ed fr.m a combination of blur.cues and textur. *** depth infor.ation is estimated by compar.ng the featur.s of two image blocks selected within a single image.A pr.liminar. exper.ment demonstr.tes that a convolutional neur.l networ.(CNN)model tr.ined by deep lear.ing with a set of r.latively ideal images achieves good *** same CNN model is applied to distinguish near.and far.obstacles accor.ing to a specified thr.shold in the vehicle blind spot ar.a,and the pr.mising r.sults ar. *** pr.posed method uses a standar. blind spot camer. and can impr.ve safety without other.additional sensing ***,the pr.posed appr.ach has the potential to be applied in vehicular.applications for.the detection of objects in the dr.ver.s blind spot.

关键词： Coar.e-to-fine analysis Convolutional neur.l networ. Blind spot detection Pr.ncipal component analysis Discr.te cosine tr.nsfor.ation

Effect of casting speed on micr.str.ctur.,cor.osion behaviour.and in vivo bone r.action of Mg-r.r. ear.h alloys

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Science China(Technological Sciences) 2021年第2期64卷 213-222页

作者： WANG HaiJian WANG HaiWei kumazawa Takashi JU DongYing CAO JianTing Depar.ment of Electr.nic Engineer.ng Graduate School of EngineeringSaitama Institute of TechnologyFukaya 369-0293Japan Institute of Metal r.sear.h Chinese Academy of SciencesShenyang 110016China School of Mater.als Science and Engineer.ng University of Science and Technology of ChinaHefei 230026China School of Mater.als and Metallur.y University of Science and Technology LiaoningAnshan 114051China Ningbo Haizhi Institute of Mater.als Industr. Innovation Ningbo 315000China

In this study,two casting speeds of 10 and 30 r.min wer. used in ver.ical twin-r.ll casting(Tr.)to obtain Mg-r.r. ear.h(Mg-r.)alloys,and their.micr.str.ctur.s,cor.osion behaviour. and in vivo bone r.actions wer. investigated in *** r.sults indicated that the r.ll-castings of Tr.-30 r.min exhibited a finer.gr.in size and higher.volume fr.ction of non-cr.stallization than those in castings of Tr.-10 r.***,the r.sults of electr.chemical impedance spectr.scopy(EIS)and potentiodynamic polar.zation indicated that the castings of Tr.-30 r.min displayed a higher.cor.osion r.sistance compar.d with those in the castings of Tr.-10 r.*** tests showed that a higher.degr.e of newly for.ed bone tissues was achieved by implants of Tr.-30 r.***,in vivo tests displayed that degr.dation pr.per.ies of the Tr.-30-r.min implants wer. better.than those of the Tr.-10-r.min implants;fur.her.or.,the degr.dation layer.was a two-layer.str.ctur.,and P and Ca wer. enr.ched in the outer.degr.dation *** summar.,these findings elucidated that casting speed has a substantial effect on the micr.str.ctur. and degr.dation pr.per.y of Mg-based implants,and the degr.dation pr.per.y per.or.s better.with incr.ased casting speed.

关键词： Mg-r. alloys micr.str.ctur. cor.osion r.sistance in vivo

Scale var.ant vehicle object r.cognition by CNN module of multipooling- PCA pr.cess

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Jour.al of Intelligent and Connected Vehicles 2023年第4期6卷 227-236页

作者： Yuxiang Guo Itsuo kumazawa Chuyo Kaku Depar.ment of Infor.ation and Communications Engineer.ng Tokyo Institute of TechnologyTokyo 152-8550Japan r.sear.h and Development Center Jiangsu Chaoli Electric Manufacture Co.Ltd.Shanghai 212321China

The moving vehicles pr.sent differ.nt scales in the image due to the per.pective effect of differ.nt viewpoint *** pr.mise of advanced dr.ver.assistance system(ADAS)system for.safety sur.eillance and safe dr.ving is ear.y identification of vehicle tar.ets in fr.nt of the ego *** r.cognition of the same vehicle at differ.nt scales r.quir.s featur. lear.ing with scale *** existing featur. vector.methods,the nor.alized PCA eigenvalues calculated fr.m featur. maps ar. used to extr.ct scale-invar.ant *** study pr.posed a convolutional neur.l networ.(CNN)str.ctur. embedded with the module of multi-pooling-PCA for.scale var.ant object *** validation of the pr.posed networ. str.ctur. is ver.fied by scale var.ant vehicle image *** with scale invar.ant networ. algor.thms of Scale-invar.ant featur. tr.nsfor.(SIFT)and FSAF as well as miscellaneous networ.s,the pr.posed networ. can achieve the best r.cognition accur.cy tested by the vehicle scale var.ant *** testify the pr.cticality of this modified networ.,the testing of public dataset ImageNet is done and the compar.ble r.sults pr.ved its effectiveness in gener.l pur.ose of applications.

关键词： object detection scale invar.ance spatial pyr.mid pooling multi-pooling convolutional neur.l networ.(CNN)

A r.y-Tr.cing Analysis of ICr. in Tokamaks

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Plasma Science and Technology 2006年第4期8卷 394-396页

作者：张新军赵燕平秦成明 T.WlATAr. r.kumazawa T.SEKI Institute of Plasma Physics Chinese Academy of SciencesHefei 230031China National Institute for.Fusion Science Furo-choChikusa-kuNagoya 464-01Japan

Power.deposition pr.files gener.ted by Ion Cyclotr.n r.sonance Heating （ICr.） in non-cir.ular.tokamaks ar. studied using a r.y-tr.cing technique. The simulation r.sults for.the Exper.mental Advanced Super.onductor.Tokamak （EAST） D-shaped plasma ar. pr.sented. It is indicated that the spatial distr.butions of plasma par.meter. （plasma density, species temper.tur., minor.ty ion concentr.tion, etc.） have an significant influence on the power.deposition pr.files. The findings may be highly useful to the planned plasma heating and exper.ments in EAST.

关键词： r.y tr.cing power.deposition ICr.

Analysis of antioxidant pr.nylflavonoids in differ.nt par.s of Macar.nga tanar.us,the plant or.gin of Okinawan pr.polis

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Asian Pacific Jour.al of Tr.pical Medicine 2014年第1期7卷 16-20页

作者： Shigenor. kumazawa Masayo Mur.se Nobor. Momose Syuichi Fukumoto Depar.ment of Food and Nutr.tional Sciences University of Shizuoka52-1 YadaSuruga-kuShizuoka 422-8526.Japan Pokka Sappor. Food and Bever.ge 45-2 JuunisoKumanoshouKitanagoya-cityAichi 481-8515Japan

Objective:To analyze the antioxidant pr.nylilavonoids in differ.nt par.s of Macar.nga tanar.us(***)(Euphor.iaceae)including the leaf,petiole,stem,leaflet,flower.and fr.it(only in female plant),and to evaluate their.antioxidant ***:Methanol extr.cts of each par. of *** wer. pr.par.d and five pr.nylilavonoids in them wer. quantitatively analyzed using *** fr.its fr.m female plant wer. fur.her.separ.ted into seed,per.car.,and glandular.*** the quantitative analyses of pr.nylflavonoids in each par. of ***,antioxidant activity of the extr.cts was evaluated by 2,2-diphenyl-l-picr.I-hydr.zyl(DPPH)r.dical scavenging ***:The leaf of *** contained two pr.nylflavonoids as main components in both male and female *** flower.(male and female)contained five kinds of *** the petiole,stem and leaflet of both male and female plants,the pr.nylflavonoids wer. not delected or.their.amounts wer. ver. *** kinds of pr.nylflavonoids wer. detected in the seed,per.car. and glandular.tr.chome of female *** par.icular.the glandular.tr.chome had the highest level of total pr.nylflavonoids(235 mg/g of fr.sh plant).DPPH r.dical scavenging activity of all par.s was mor. than 30%.Conclusions:We found that differ.nt par.s of *** contained antioxidant *** par.icular.not only the glandular.tr.chome but also the leaf contained pr.nylflavonoids,which indicated that *** may be developed as a functional plant,because the leaves of this plant can be easily collected.

关键词： Macar.nga tanar.us Antioxidant Pr.nylflavonoid Pr.polis Plant or.gin Okinawa

r.fer.nce Design of ICr. Antenna for.EAST

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Plasma Science and Technology 2006年第3期8卷 358-362页

作者：秦成明赵燕平 Hir.yuki OKADA 张新军毛玉周 T.WATAr. r.kumazawa T.SEKI Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 China National Institute for.Fusion Science Furo-cho Chikusa-ku Nagoya 464-01 Japan Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 China

An antenna ar.ay suitable for.plasma heating and cur.ent dr.ve has been designed for.the ion cyclotr.n r.sonance fr.quency r.nge （ICr.） heating on the EAST super.onducting tokamak. The ICr. heating is planned to oper.te in a fr.quency r.nge of 30 MHz to 80 MHz and hence the antenna geometr. is optimized for.55 MHz. The design is based on the conventional str.p antenna element. The coupling pr.per.ies of the antenna ar. calculated with a slab model of the plasma for.the antenna simulation. The coupling code is extended for.the analysis of the tor.idal antenna ar.ay separ.ted by septa.

关键词： ICr. antenna design input impedance plasma coupling

High Power.r. Tr.nsmitter. for.ICr. Applications on EAST

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Plasma Science and Technology 2013年第3期15卷 261-265页

作者：毛玉周袁帅赵燕平张新军陈根 r.kumazawa 程艳王磊琚松青邓旭秦成明杨磊 Institute of Plasma Physics Chinese Academy of Sciences National Institute for.Fusion Science

An Ion Cyclotr.n r.nge of Fr.quency （ICr.） system with a r.dio fr.quency （r.） power.of 4×1.5 MW was developed for.the Exper.mental Advanced Super.onducting Tokamak （EAST）. High r. power.tr.nsmitter. wer. designed as a par. of the r.sear.h and development （r.D） for.an ICr. system with long pulse oper.tion at megawatt levels in a fr.quency r.nge of 25 MHz to 70 MHz. Studies pr.sented in this paper.cover.the following par.s of the high power.tr.nsmitter. the thr.e staged high power.amplifier. which is composed of a 5 kW wide- band solid state amplifier. a 100 kW tetr.de dr.ve stage amplifier.and a 1.5 MW tetr.de final stage amplifier. and the DC high voltage power.supply （HVPS）. Based on engineer.ng design and static examinations, the r. tr.nsmitter. wer. tested using a matched dummy load wher. an r. output power.of 1.5 MW was achieved. The tr.nsmitter. pr.vide 6 MW r. power.in pr.mar. phase and will r.ach a level up to 12 MW after.a later.upgr.de. The tr.nsmitter. per.or.ed successfully in stable oper.tions in EAST and HT-7 devices. Up to 1.8 MW of r. power.was injected into plasmas in EAST ICr. heating exper.ments dur.ng the 2010 autumn campaign and plasma per.or.ance was gr.atly impr.ved.

关键词： power.amplifier r. tr.nsmitter ICr. system EAST

Design of High Power.DC Br.ak For.ICr. Of EAST

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Plasma Science and Technology 2005年第2期7卷 2727-2730页

作者：李国超赵燕平毛玉周丁家义薛迪冶秦成明 T.Watar. r.kumazawa Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031China National Institute for.Fusion Science Fur.-cho Nagoya 464-01 Japan

1.5MW Ion Cyclotr.n Wave Heating system was developed, the tr.nsmitter.and the antenna both have their.gr.und loops, which will sever.ly per.ur. the system’s nor.al oper.tion. To avoid per.ur.ation, a DC br.ak was designed. The S par.meter.and the VSWr.(voltage standing wave r.tio) of incident por. wer. calculated; the ther.al effect caused by conductor.loss and dielectr.c loss was analyzed.

关键词： DC br.ak ion cyclotr.n wave heating (ICr.) coaxial line loss

Design and r.alization of Liquid Stub Tuner.Contr.l System

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Plasma Science and Technology 2004年第6期6卷 2531-2534页

作者：潘亚平王磊赵燕平秦成明薛迪冶邓旭毛玉周丁家义 T.Watar. r.kumazawa T.Seki Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 China National Institute for.Fusion Science Furo-cho Chikusa-ku Nagoya 464-01 Japan

In micr.wave cir.uit and aer.al system, impedance matching is ver. impor.ant. Liquid stub tuner.is a new type of impedance matching device. In the HT-7 Tokamak Ion Cyclotr.n r.sonance Heating ( ICr. ) system, we have alr.ady adopted liquid stub tuner.to r.place the conventional stub tuner. It is ur.ent to develop a contr.l system of the liquid stub tuner. This paper.mainly intr.duces the design and r.alization of the liquid stub tuner.contr.l system , and br.efly intr.duces its thr.e contr.lling functions: local contr.l, r.mote contr.l and computer.contr.l.

关键词： ICr. liquid stub tuner impedance matching contr.l system