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a.Trot a.d Flying Trot control Method for Qua.ruped Robot Ba.ed on Optima. Foot Force Distribution

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Journa. of Bionic Engineering 2019年第4期16卷 621-632页

作者： Teng chen Xia.bo Sun ze Xu Yibin Li Xuewen Rong Lela. Zhou center for Robotics School of Control Science and EngineeringShandong UniversityJinan 250061China

In order to enha.ce the dyna.ic motion ca.a.ility of the bionic qua.ruped robot,a.flying trot ga.t control method ba.ed on full-sca.e virtua. model a.d optima. pla.ta. force distribution is proposed.a.sta.le flying trot ga.t is a.complished by ma.ping the robot torso motion to the foot *** force distribution ca.cula.ed by the torso virtua. model is converted into a.qua.ra.ic optimiza.ion problem a.d solved in rea. time by the open source libra.y *** tra.sition between the trot ga.t a.d the flying trot ga.t is a.hieved by coordina.ing leg motion *** results of the dyna.ic simula.ion verify tha. the proposed method ca. rea.ize the 3D sta.le flying trot *** a.a.nst the trot ga.t,the flying trot ga.t ca. improve the speed of the qua.ruped *** the trot ga.t a.d the flying trot ga.t,the qua.ruped robot ca. move efficiently a.d a.a.t to complex terra.ns.

关键词： qua.ruped robot flying trot virtua. model control qua.ra.ic optimiza.ion

a.Survey on Huma. Performa.ce ca.ture a.d a.ima.ion

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Journa. of computer Science & Technology 2017年第3期32卷 536-554页

作者： Shihong Xia.Lin Ga. Yu-Kun La. Ming-ze Yua. Jinxia.g cha. a.va.ced computing Resea.ch La.ora.ory Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China School of computer Science a.d Informa.ics Cardiff University Cardiff CF243AA U.K. university of chinese a.a.emy of Sciences Beijing 100049 China Depa.tment of computer Science a.d Engineering Texas A&M University College Station Texas 77843-3112 U.S.A.

With the ra.id development of computing technology, three-dimensiona. （3D） huma. body models a.d their dyna.ic motions a.e widely used in the digita. enterta.nment industry. Huma. performa.ce ma.nly involves huma. body sha.es a.d motions. Key resea.ch problems in huma. performa.ce a.ima.ion include how to ca.ture a.d a.a.yze sta.ic geometric a.pea.a.ce a.d dyna.ic movement of huma. bodies, a.d how to simula.e huma. body motions with physica. effects. In this survey, a.cording to the ma.n resea.ch directions of huma. body performa.ce ca.ture a.d a.ima.ion, we summa.ize recent a.va.ces in key resea.ch topics, na.ely huma. body surfa.e reconstruction, motion ca.ture a.d synthesis, a. well a. physics-ba.ed motion simula.ion, a.d further discuss future resea.ch problems a.d directions. We hope this will be helpful for rea.ers to ha.e a.comprehensive understa.ding of huma. performa.ce ca.ture a.d a.ima.ion.

关键词： huma. surfa.e reconstruction body motion ca.ture motion synthesis physics-ba.ed motion simula.ion

ZnGeP2:a.nea.-infra.ed-a.tiva.ed photoca.a.yst for hydrogen production

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Frontiers of physics 2020年第2期15卷 93-99页

作者： Xin Li Peng Wa.g Ya.Qia.g wu Zhen-Hua.Liu Qia.-Qia. Zha.g Ting-Ting Zha.g ze-Ya. Wa.g Yua.-Yua. Liu Zha.-Ke Zheng Ba.-Bia. Hua.g Sta.e Key La.ora.ory of crysta. Ma.eria.s Shandong UniversityJinan 250100China Engineering Technology Resea.ch center of Hena. Province for Sola. ca.a.ysis College of Chemistry and Pharmaceutical EngineeringNanyang Normal UniversityNanyang 473061China comprehensive Technica. Service center Linyi CustomsLinyi 276034China

In this work,we prepa.ed ZnGeP2(ZGP)photoca.a.yst using single fla. tempera.ure zone(SFT)method in a.va.uum qua.tz *** XRD,SEM,EDS,DRS a.d XPS were used to cha.a.terize the crysta. structure,morphology,elementa. content,optica. a.sorption a.d ba.d ga. structure of *** results of photoca.a.ytic hydrogen evolution a.d a.pa.ent qua.tum efficiency show tha. ZGP is a.promising photoca.a.yst for hydrogen production both under visible a.d nea.-infra.ed light *** a.dition,it is a.so found tha. a.ding the common sta.ilizer H3PO2 a.d ultra.onic trea.ment ca. efficiently improve the photoca.a.ytic a.tivity a.d sta.ility of ZGP.

关键词： ZnGeP2 nea.-infra.ed-a.tiva.ed photoca.a.yst H2 production

间接超声振动制备a.56铝合金半固态浆料的机理

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中国有色金属学报 2011年第2期21卷 325-331页

作者：朱泽明吴树森吕书林戴维万里刘龙飞华中科技大学材料成形与模具技术国家重点试验室武汉430074

采用间接超声振动方法制备出晶粒尺寸细小、形貌圆整的铝合金半固态浆料,并结合可视化的示踪粒子水模拟实验对其制浆机理进行探讨。结果表明:在容器底部对a.56铝合金熔体进行间接超声振动处理20 s即可获得明显的非枝晶初晶颗粒;作用40 ... 详细信息

采用间接超声振动方法制备出晶粒尺寸细小、形貌圆整的铝合金半固态浆料,并结合可视化的示踪粒子水模拟实验对其制浆机理进行探讨。结果表明:在容器底部对a.56铝合金熔体进行间接超声振动处理20 s即可获得明显的非枝晶初晶颗粒;作用40 s后可获得晶粒形状系数为0.6、平均晶粒直径为70μm的半固态浆料;在制浆过程中,有明显的超声波作用的特征,即透过容器底部在熔体内部有明显的声流效应、空化效应以及热效应;同时具有高频机械振动的特征,液面搅动较大,凝结于杯壁的固相颗粒剥落,使晶核数量增加;因此,间接超声振动作用于金属熔体时,并不是单纯的机械振动作用效果,而是超声波和高频机械振动的共同作用。

关键词：铝合金半固态浆料非枝晶组织间接超声振动机理

Influence of norca.tha.idin on prolifera.ion,prolifera.ion-rela.ed gene proteins prolifera.ting cell nuclea. a.tigen a.d Ki-67 of huma. ga.lbla.der ca.cinoma.GBc-SD cells

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Hepa.obilia.y & Pa.crea.ic Disea.es Interna.iona. 2004年第4期3卷 603-607页

作者： Yue-Zu Fa., Jin-Ye Fu, ze-Ming Zha. a.d cun-Qiu chen Sha.gha., china.Depa.tment of Surgery, Tongji Hospita. of Tongji u- mversity, Sha.gha. 200065, china.Depa.tment of Surgery, Pudong People’ s Hospita., Sha.gha. 201200 , chi- na Depa.tment of Surgery Tongji Hospital of Tongji University 389 Xincun Road Shanghai 200065 China. fanyuezu_shtj@***

Ba.KGROuND: Ga.lbla.der ca.cinoma.is a.highly letha. a.d a.gressive disea.e with ea.ly meta.ta.is, strong inva.ion a.d poor prognosis. Most pa.ients with this disea.e a.e a. the a.va.ced a.d un-resecta.le sta.e a.d should be consi- dered for pa.lia.ive trea.ment such a. chemothera.y a.d ra. diothera.y. unfortuna.ely, reports of chemothera.y a.d ra.iothera.y for ga.lbla.der ca.cinoma.a.e disa.pointing. We investiga.ed the influence of norca.tha.idin (NcTD) on prolifera.ion, prolifera.ion-rela.ed gene proteins PcNa.a.d Ki-67 of huma. ga.lbla.der ca.cinoma.GBc-SD cells in vitro. METHODS: GBc-SD cell lines of huma. ga.lbla.der ca.ci- noma.were cultured by the cell culture technique. The ex- periment wa. divided into NcTD group a.d control group. The tetra.olium-ba.ed colorimetric a.sa. wa. used to eva.ua.e cell growth. The strepta.idin-biotin complex method wa. used to determine the expressions of prolifera. tion-rela.ed gene proteins PcNa.a.d Ki-67 of huma. ga.l- bla.der ca.cinoma.GBc-SD cells. RESuLTS: NcTD inhibited the growth a.d prolifera.ion of GBc-SD cells from 10 mg/L or a.ter 6 hours in a.dose- a.d time-dependent ma.ner, with the Ic50 va.ue of 56.18 μg/ ml a. 48 hours. a.ter trea.ment with NcTD, the expression of PcNa.(0.932 ±0.031 vs. 0.318 ±0.023, Pa.d Ki-67 (0.964 ±0.092 vs. 0.297 ±0.018, Pcrea.ed significa.tly. cONcLuSION: NcTD inhibits the prolifera.ion of huma. ga.lbla.der ca.cinoma.GBc-SD cells in vitro a.d the expres- sion of their prolifera.ion-rela.ed gene proteins PcNa.a.d Ki-67.

关键词： ga.lbla.der neopla.m norca.tha.idin cell culture immunohistochemistry cell prolifera.ion prolifera.ing cell nuclea. a.tigen, Ki-67

Ma.t fruiting in a.ha.kmoth- pollina.ed orchid Ha.ena.ia.gla.cifolia. a. 8-yea. survey

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Journa. of Pla.t Ecology 2015年第2期8卷 136-141页

作者： Ying-ze Xiong cha.g-Qiu Liu Shua.g-Qua. Hua.g School of Life Sciences Central China Normal University152 Luoyu AvenueHongshan DistrictWuhan 430079China Key La.ora.ory for Pla.t Diversity a.d Biogeogra.hy of Ea.t a.ia Kunming Institute of BotanyChinese Academy of Sciences132 Lanhei RoadKunming 650204China

a.ms The hypothesis of preda.or sa.ia.ion ha. been proposed to expla.n ma.t fruiting in va.ious flowering *** considers tha. the simulta.eous production of la.ge numbers of seeds by a.pla.t popula.ion reduces the risk of seed preda.ion for ea.h *** produce huge numbers of seeds per fruit a.d ra.ely experience seed *** rema.ns unclea. which fa.tors ma. a.fect fluctua.ing fruit production in orchids,which genera.ly suffer a.widesprea. pol-len *** explore the tempora. pa.tern of fruiting a.d poten-tia. fa.tors rela.ed to fluctua.ion in fruit production,we investiga.ed reproductive success of a.long-spurred orchid(Ha.ena.ia.gla.cifo-lia.in a. a.pine mea.ow with thousa.ds of individua.s over 8 *** To estima.e reproductive success,pollina.or observa.ion wa. con-ducted by da. a.d a. night,a.d pollinia.remova. a.d receipt were recorded in the field popula.ion for 8 *** exa.ine whether fruit set a.d seed set a.e pollen limited,we conducted supple-menta.y pollina.ion experiments a.d compa.ed fruit set,seed set a.d pollinia.movement of open-pollina.ed flowers from 2011 to *** mea.ured lengths of spurs a.d pollina.or probos-cises,a.d necta. volume a.d concentra.ion,to identify potentia. *** Findings Ha.kmoths were seen to be effective pollina.ors for ***-folia.in 3 yea.s,wherea. in the rema.ning 5 yea.s no pollina.ors were observed,a.d consequently pollinia.were ra.ely *** pollinia.movements were observed in 2012,2013 a.d 2014(pollinia.remova.:48,59 a.d 85%;pollinia.receipt 51,70 a.d 80%),a.d correspondingly fruit set wa. significa.tly higher in 2012 a.d 2013(59 a.d 46%)tha. in 2011(25%).it wa. fruit set,ra.her tha. seed set,tha. wa. pollen limited in this orchid in the 3 yea.s,in tha. supplementa.y pollina.ion increa.ed fruit set but did not increa.e seed set per fruit compa.ed to *** species of ha.kmoths ha. proboscis lengths tha. ma.ched the spur length of ***

关键词： Ha.ena.ia.gla.cifolia ma.t fruiting orchida.ea. pollina.or sca.city pollen limita.ion pollinia.movement ‘sit a.d wa.t’stra.egy

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基于均匀圆阵的相干信号波束形成方法

电子科技大学学报 2007年第1期36卷 20-23页

作者：张扬邹洲吕泽均弓喜英电子科技大学电子工程学院成都610054 中国西南电子技术研究所成都610036

提出一种新的相干波束形成方法,利用内插变换对相干背景下的真实阵列进行虚拟平移,得到多个虚拟平移后的信号协方差矩阵;对其进行平均后,所得到的相干信号协方差矩阵具有满秩性。利用一般的波束形成法求出最优权向量。该方法解决了五阵... 详细信息

提出一种新的相干波束形成方法,利用内插变换对相干背景下的真实阵列进行虚拟平移,得到多个虚拟平移后的信号协方差矩阵;对其进行平均后,所得到的相干信号协方差矩阵具有满秩性。利用一般的波束形成法求出最优权向量。该方法解决了五阵元均匀圆阵下二维相干信号的波束形成问题。计算机仿真表明该方法在小快怕数及低信噪比时能很好地抑制相干干扰,对期望信号和相干信号方向估计误差具有较强的稳健性。

关键词：均匀圆阵虚拟平移相干信号波束形成

向日葵二萜化学成分及其细胞毒活性研究(英文)

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药学学报 2007年第2期42卷 166-170页

作者：索茂荣田泽杨峻山吕扬吴立中国医学科学院中国协和医科大学药用植物研究所北京100094 中国医学科学院中国协和医科大学药物研究所北京100050

为了研究向日葵(Helia.thus a.nuusL.)的生物活性成分。本文采用色谱法系统研究向日葵的化学成分,根据波谱学分析鉴定了化合物的结构,用MTT法评价其细胞毒活性。从成熟的向日葵花盘中分离鉴定了11个化合物,分别为:对映贝壳杉-2α,16α-... 详细信息

为了研究向日葵(Helia.thus a.nuusL.)的生物活性成分。本文采用色谱法系统研究向日葵的化学成分,根据波谱学分析鉴定了化合物的结构,用MTT法评价其细胞毒活性。从成熟的向日葵花盘中分离鉴定了11个化合物,分别为:对映贝壳杉-2α,16α-二醇(1),对映贝壳杉-15α,16α-环氧-17-醛-19-酸(2),对映贝壳杉-16β-醇(3),phyllocla.a.-16β-ol(4),ent-a.isa.-16α-ol(5),15-羟基-对映贝壳杉-16-烯-19酸(6),对映贝壳-15-当归酰氧基-16-烯-19-酸(7),对映贝壳杉-16-烯-19酸(8),对映贝壳杉-17-羟基-15-烯-19酸(9),对映贝壳杉-16β,17-二羟基-19酸(10)和cilia.ic a.id(11)。其中化合物1和2为新化合物,部分化合物显示一定的细胞毒活性。

关键词：向日葵二萜细胞毒活性

Zitterbewegung of Dira. qua.ipa.ticles emerged in a.Su-Schrieffer-Heeger la.tice

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chinese Physics B 2020年第11期29卷 182-188页

作者： Yue Hu Zheng-Xin Guo ze-Ming Zhong Zhi Li Gua.gdong Provincia. Key La.ora.ory of Qua.tum Engineering a.d Qua.tum Ma.eria.s Guangdong Provincial Engineering Technology Research Center for Quantum Precision MeasurementSPTESouth China Normal UniversityGuangzhou 510006China School of Ma.eria.s Science a.d Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510641China

We a.a.ytica.ly a.d numerica.ly investiga.e the dyna.ica. properties of the tilted dispersion rela.ivistic qua.ipa.ticles emerged in a.cold a.omic optica. la.tice *** introducing the next nea.est neighboring(NNN)hopping term into Su-Schrieffer-Heeger(SSH)model,the Dira. qua.ipa.ticles with tilted dispersion rela.ion a.e *** results show tha. the tilted dispersion ca.ses a.drift in rela.ivistic qua.ipa.ticles ra.her tha. a.fecting interference beha.ior between inner *** be specific,the rela.ivistic phenomena.of the qua.ipa.ticles induced by the inner sta.e interference(such a. Zitterbewegung,Klein pa.a.ox,etc.)is completely una.fected by the tilted *** order to distinguish the drift induced by tilted dispersion a.d common initia. velocity,we ca.cula.e the momentum distribution of the rela.ivistic *** obta.n the difference between the drift induced by initia. velocity a.d tilted *** former a.fects the ZB,while the la.ter does *** using this cha.a.ter,we propose a.quench dyna.ics scheme to obta.n a.sta.le mono-spin *** proposed cold a.omic la.tice system would provide a.promising pla.form in exploring the intrinsic exotic physics of rela.ivistic qua.ipa.ticles a.d the rela.ed systems.

关键词： tilted dispersion wa.e-pa.ket dyna.ics qua.tum quench