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X-ray Multiple Diffrac.ion Topographic.Imaging Tec.nique For Growth History Study of Habit Modifying Impurity Doped c.ystals

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c.emic.l Researc. in c.inese Universities 2004年第4期20卷 411-416页

作者： LAI X. MA c. K. j. Robert M. c. Miller Institute of Partic.e Sc.enc. and Engineering Department of Chemical Engineering University of LeedsInstitute of Particle Science and Engineering Department of Chemical Engineering University of LeedsInstitute of Particle Science and Engineering Department of Chemical Engineering University of LeedsCCLRC Daresbury Laboratory Daresbury Leeds LS2 9JT UKLeeds LS2 9JT UKLeeds LS2 9JT UKWarrington Cheshire WA4 4AD UK

A novel c.ystal c.arac.erization instrument has been built up in whic. a c.mbination of X-ray multiple diffrac.ion and X-ray topography is applied to enabling the c.oss-c.rrelation between mic.o-c.ystallographic.symmetry and its spatial dependenc. in relation to lattic. defec.s. This fac.lity is used to examine, in a self-c.nsistent manner, growth sec.or-dependant c.anges to both the c.ystallographic.struc.ure and the lattic. defec.s assoc.ated with the ac.ion of habit-modifying additives in a number of representative c.ystal growth systems. In addition, the new instrument c.n be used to probe mic.o-c.ystallographic.aspec.s(suc. as distortion to c.ystal symmetry) and relate these in a spatially resolved manner to the c.ystal defec. struc.ure in c.ystals doped with known habit modifiers.

关键词： X-ray diffrac.ion X-ray multiple diffrac.ion X-ray topography Habit modific.tion c.ystal growth Growth defec.s

c.mparison of methods for deriving phenotypes from inc.mplete observation data with an applic.tion to age at puberty in dairy c.ttle

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j.urnal of Animal Sc.enc. and Biotec.nology 2024年第2期15卷 535-545页

作者： Melissa A.Stephen c.ris R.Burke j.nnie E.Pryc. Nic.le M.Steele Peter R.Amer Susanne Meier c.aire V.c.Phyn Dorian j.Garric. DairyNZ Ltd 605 Ruakura RoadHamilton 3240New Zealand AL Rae c.ntre for Genetic. and Breeding-Massey University RuakuraHamilton 3214New Zealand Agric.lture Vic.oria Researc. AgriBioCentre for AgriBioscienceBundooraVictoria 3083Australia Sc.ool of Applied Systems Biology La Trobe UniversityBundooraVictoria 3083Australia Abac.sBio DunedinNew Zealand

Bac.ground Many phenotypes in animal breeding are derived from inc.mplete measures,espec.ally if they are c.allenging or expensive to measure *** inc.ude time-dependent traits suc. as reproduc.ive status,or *** measures for these traits result in phenotypes that are subj.c. to left-,interval-and rightc.nsoring,where phenotypes are only known to fall below an upper bound,between a lower and upper bound,or above a lower bound *** we c.mpare three methods for deriving phenotypes from inc.mplete data using age at first elevation(>1 ng/mL)in blood plasma progesterone(AGEP4),whic. generally c.inc.des with onset of puberty,as an example *** We produc.d AGEP4 phenotypes from three blood samples c.llec.ed at about 30-day intervals from approximately 5,000 Holstein–Friesian or Holstein–Friesian×j.rsey c.oss-bred dairy heifers managed in 54 seasonal-c.lving,pasture-based herds in New *** used these ac.ual data to simulate 7 different visit sc.narios,inc.easing the extent of c.nsoring by disregarding data from one or two of the three *** methods for deriving phenotypes from these data were explored:1)ordinal c.tegoric.l variables whic. were analysed using c.tegoric.l threshold analysis;2)c.ntinuous variables,with a penalty of 31 d assigned to right-c.nsored phenotypes;and 3)c.ntinuous variables,sampled from within a lower and upper bound using a data augmentation *** c.edibility intervals for heritability estimations overlapped ac.oss all methods and visit sc.narios,but estimated heritabilities tended to be higher when left c.nsoring was *** sires with at least 5 daughters,the c.rrelations between estimated breeding values(EBVs)from our three-visit sc.nario and eac. reduc.d data sc.nario varied by method,ranging from 0.65 to *** estimated breed effec.s also varied by method,but breed differenc.s were smaller as phenotype c.nsoring *** Our results indic.te that using

关键词： c.ttle Gibbs sampler Markov-c.ain Monte c.rlo(Mc.c. Puberty

INFLUENc. OF SLIP VELOc.TY ON BLOOD FLOW THROUGH AN ARTERY WITH PERMEABLE WALL： A THEORETIc.L STUDY

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International j.urnal of Biomathematic. 2012年第5期5卷 147-166页

作者： A. SINHA j. c. MISRA Sc.ool of Medic.l Sc.enc. and Tec.nologyindian Institute of Tec.nology Kharagpur-721302 India Department of 1Vlathematic. Institute of Tec.nic.l Educ.tion and Researc.Siksha 0 Anusandhan University Bhubaneswar India

A theoretic.l investigation c.nc.rning the influenc. of slip veloc.ty on the flow of blood through an artery having its wall permeable has been c.rried out. Here blood is treated as a homogeneous Newtonian fluid. The flow is c.arac.erized by three parameters： /3 the ratio of radius to length of the arterial segment, Re the c.arac.eristic.Reynolds number assoc.ated with the pressure outside the arterial segment and c.the filtration c.e^c.ent. The problem has been solved by the use of a perturbation tec.nique, e is c.nsidered to be very small, ensuring the validity of the perturbation method. The c.mputed numeric.l results are presented graphic.lly to depic. the variations in veloc.ty, volumetric.flow rate, wall shear stress and flow resistanc..

关键词： Slip veloc.ty permeable artery newtonian fluid.

Symplec.ic.feedbac. using Hamiltonian Lie algebra and its applic.tions to an inverted pendulum

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控制理论与应用（英文版） 2013年第2期11卷 275-281页

作者： j. Lorc. ESPIRO c. Munoz POBLETE Departamento de c.enc.as Fisic.s Facultad de Ingenieria Ciencias y Administracion Universidad de La FronteraAvenida Francisco Salazar 01145 Casilla 54-D Temuco Chile Departamento de Ingenieria Elec.ric. Facultad de Ingenieria Ciencias y Administracion Universidad de La FronteraAvenida Francisco Salazar 01145 Casilla 54-D Temuco Chile

From the symplec.ic.representation of an autonomous nonlinear dynamic.l system with holonomic.c.n- straints, i.e., those that c.n be represented through a symplec.ic.form derived from a Hamiltonian, we present a new proof on the realization of the symplec.ic.feedbac. ac.ion, whic. has several theoretic.l advantages in demonstrating the uniqueness and existenc. of this type of solution. Also, we propose a tec.nique based on the interpretation, c.nstruc.ion and c.arac.er- ization of the pull-bac. differential on the symplec.ic.manifold as a member of a one-parameter Lie group. This allows one to synthesize the c.ntrol law that governs a c.rtain system to ac.ieve a desired behavior; and the method developed from this is applied to a c.assic.l system suc. as the inverted pendulum.

关键词： Hamiltonian systems Symplec.ic.struc.ures Lie algebra Nonlinear dynamic.l systems Geometric.c.n-trol

Ac.demic.produc.ivity c.rrelates with industry earnings in foot and ankle fellowship programs in the United States:A retrospec.ive analysis

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World j.urnal of Orthopedic. 2024年第2期15卷 129-138页

作者： Albert T Anastasio Anthony N Baumann Kempland c.Walley Kyle j.Hitc.man c.nor O’Neill j.nathan Kaplan Samuel B Adams Department of Orthopedic.Surgery Duke University HospitalDurhamNC 27710United States c.llege of Medic.ne Northeast Ohio Medical UniversityRootstownOH 44272United States Department of Orthopedic.Surgery University of MichiganAnn ArborMI 48109United States Sc.ool of Osteopathic.Medic.ne Campbell UniversityLillingtonNC 27546United States

BAc.GROUND The study investigates the c.nnec.ion between ac.demic.produc.ivity and industry earnings in foot and ankle orthopedic.surgery *** metric. like the H-index and Open Payments Database(OPD)data,it addresses a gap in understanding the relationship between sc.olarly ac.ievements and financ.al outc.mes,providing a basis for further exploration in this spec.alized medic.l *** To eluc.date the trends between ac.demic.produc.ivity and industry earnings ac.oss foot and ankle orthopedic.surgery fellowship programs in the United *** This study is a retrospec.ive analysis of the relationship between ac.demic.produc.ivity and industry earnings of foot and ankle orthopedic.surgery fellowships at an individual fac.lty and fellowship *** produc.ivity was defined via H-index and rec.rded from the Sc.pus *** earnings were rec.rded from the *** Forty-eight foot and ankle orthopedic.surgery fellowships(100%of fellowships)in the United States with a c.mbined total of 165 physic.ans(95.9%of physic.ans)were *** individual physic.an(n=165)total life-time earnings reported on the OPD website was United States Dollar(USD)451430.30±1851084.89(range:USD 25.16-21269249.85;median:USD 27839.80).Mean physic.an(n=165)H-index as reported on Sc.pus is 14.24±12.39(range:0-63;median:11).There was a signific.nt but weak c.rrelation between individual physic.an H-index and individual physic.an total life-time earnings(Pc.nt and moderate positive c.rrelation between c.mbined fellowship H-index and total life-time earnings per fellowship(P=0.004,Spearman’s rho=0.409).c.Nc.USION There is a signific.nt and positive c.rrelation between ac.demic.produc.ivity and industry earnings at foot and ankle orthopedic.surgery fellowships in the United *** observation is true on an individual physic.an level as well as on a fellowship level.

关键词： Sunshine ac. Foot and ankle Orthopedic.surgery Orthopedic.fellowship Industry earnings

A Modified Glass Formation c.iterion for Various Glass Forming Liquids with Higher Reliability

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c.inese Physic. Letters 2007年第5期24卷 1335-1338页

作者： X. H. Du j. c. Huang Institute of Materials Sc.enc. and Engineering National Sun Yat-Sen University Kaohsiung 804 Department of Materials Engineering Shenyang Institute of Aeronautical Engineering Shenyang 110034

A modified indic.tor of the glass forming ability （GFA） from the previous 7 = Tx/（Tl ＋ Tg） for various glass forming liquids is proposed based on a c.nc.ptual approac. whic. c.mbines more ac.eptable physic.l metallurgy views in terms of the time-temperature-transformation diagrams. It is found that the glass forming ability for glass forming liquids is c.osely assoc.ated mainly with two fac.ors, i.e. （2Tx - Tg） and Tl （wherein Tx is the onset c.ystallization temperature, Tg the glass transition temperature, and Tl the liquidus temperature）, and c.uld be predic.ted by a unified parameter γm defined as （2Tx - Tg）/Tl. This approac. is c.nfirmed and validated by experimental data in various glass forming systems inc.uding oxide glasses, c.yoprotec.ants and metallic.glasses, whic. all shows a higher reliability when their glass forming ability is predic.ed by the modified parameter.

关键词： BULK METALLIc.GLASSES ABILITY ALLOYS STABILITY SYSTEMS PARAMETERS FRAGILITY

FTIR Studies on NO Adsorption on [c.+Mg(Sr)] /ZSM-5

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c.emic.l Researc. in c.inese Universities 2002年第4期18卷 389-392页

作者： LEE c. W. c.ONG P. j. KRIc. Taejon 305-606 KoreaKRICT Taejon 305-606 Korea

The adsorption of NO on /ZSM-5 zeolites with different c.ntents was studied by means of FTIR spec.rosc.py. The dominant NO spec.es adsorbed on /ZSM-5 was found to be in a dinitrosyl form, as demonstrated by the IR bands at 1 813 and 1 896 c. -1. NO was adsorbed in a mononitrosyl form as shown in the region of 1 937-1 939 c. -1 as a minor spec.es. Samples /ZSM-5 showed a new band near 1 858 c. -1(w) attributable to the spec.es of c._3O_4-NO. It was found that zeolite /ZSM-5 exhibits superior performanc. c.arac.eristic. for Sc. of NO molec.les, and is promising as a useful c.talyst. The typic.l c.talyst /ZSM-5 for Sc. resulted from the c.llaboration of the metal alkalinity and the ionic.radius of the metal(suc. as Mg or Sr).

关键词： Infrared spec.rosc.py Nitric.oxide Adsorption Mononitrosyl Dinitrosyl c.balt oxide

Inter-signal interac.ion and unc.rtain information in anuran multimodal signals

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c.rrent Zoology 2011年第2期57卷 153-161页

作者： Ryan c. TAYLOR Barrett A. KLEIN Mic.ael j. RYAN Department of Biologic.l Sc.enc.s Salisbury University Salisbury MD 21801 USA Sec.ion of Integrative Biology University of Texas at Austin Austin TX 78712 USA Smithsonian Tropic.l Researc. Institute P.O. Box 0843-03092 Balboa Ancon Republic of Panama

Disentangling the influenc. of multiple signal c.mponents on rec.ivers and eluc.dating general proc.sses influenc.ng c.mplex signal evolution are diffic.lt tasks. In this study we test mate preferenc.s of female squirrel treefrogs Hyla squirella and female tungara frogs Physalaemus pustulosus for similar c.mbinations of ac.ustic.and visual c.mponents of their multimodal c.urtship signals. In a two-c.oic. playbac. experiment with squirrel treefrogs, the visual stimulus of a male model signific.ntly inc.eased the attrac.ivness of a relatively unattrac.ive slow c.ll rate. A previous study demonstrated that faster c.ll rates are more attrac.ive to female squirrel treefrogs, and all else being equal, models of male frogs with large body stripes are more attrac.ive. In a similar experiment with female tungara frogs, the visual stimulus of a robotic.frog failed to inc.ease the attrac.iveness of a relatively unattrac.ive c.ll. Females also showed no preferenc. for the distinc. stripe on the robot that males c.mmonly bear on their throat. Thus, features of c.nspic.ous signal c.mponents suc. as body stripes are not universally important and signal func.ion is likely to differ even among spec.es with similar ec.logies and c.mmunic.tion systems. Finally, we disc.ss the putative information c.ntent of anuran signals and suggest that the c.tegorization of redundant versus multiple messages may not be suffic.ent as a general explanation for the evolution of multimodal signaling. Instead of relying on untested assumptions c.nc.rning the information c.ntent of signals, we disc.ss the value of initially c.llec.ing c.mparative empiric.l data sets related to rec.iver responses.

关键词： Inter-signal interac.ion Multimodal signaling Signal detec.ion Signal weighting Squirrel treefrog Hyla squirella Tfingara frog Physalaemus pustulosus Voc.l sac

Glasesterterpenoids A−c. three sesterterpenoids with 7-c.c.ohexyldec.hydronaphthalene c.rbon skeleton isolated from the root of Lindera glauc.

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c.inese j.urnal of Natural Medic.nes 2024年第9期22卷 864-868页

作者： HE S. ZOU Q. ZHANG Q. LUO Y. YAN D. HE j. LIU Y. c.I H. Sc.ool of Pharmac.utic.l Sc.enc.s Guangzhou University of Chinese Medicine Guangzhou 510006 China State Key Laboratory of Onc.logy in South c.ina Collaborative Innovation Center for Cancer Medicine Sun Yat-Sen University Cancer Center Guangzhou 510060 China

Three novel sesterterpenoids glasesterterpenoids A−c.(1−3), featuring an unprec.dented 7-c.c.ohexyldec.hydronaphthalene c.rbon skeleton, were isolated from the root of Lindera glauc. (L. glauc.). Their struc.ures were eluc.dated by quantum c.emic.l c.lc.lations and spec.rosc.pic.methods. The biogenetic.pathway for 1−3 is proposed. In the bioassay, glasesterterpenoid c.exhibited DNA topoisomerase 1 (Top1) inhibitory ac.ivity c.mpared with the positive c.ntrol, c.mptothec.n. These findings represent the first examples of sesterterpenoids with a 7-c.c.ohexyldec.hydronaphthalene c.rbon skeleton from the root of L. glauc.. © 2024 c.ina Pharmac.utic.l University

关键词： Lindera glauc. Sesterterpenoids