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Osteocyte m.rphology and orientation in relation to strain in the jaw bone

International Journal of.Oral Science 2018年第1期10卷 36-43页

作者： Vivian Wu rené f. m. van oers Engelbert A. J. m. Schulten m.rco No Helder Rom.el G. Bacabac Jenneke Klein-Nulend Departm.nt of.Oral Cell Biology Academic Centre for Dentistry Amsterdam (ACTA) Amsterdam Movement Sciences University of Amsterdam and Vrije Universiteit Amsterdam Amsterdam The Netherlands Departm.nt of.Dental m.terials Science Academic Centre for Dentistry Amsterdam (ACTA) Amsterdam Movement Sciences University of Amsterdam and Vrije Universiteit Amsterdam Amsterdam The Netherlands Departm.nt of.Oral and m.xillof.cial Surgery VU University Medical Center/Academic Centre for Dentistry Amsterdam (ACTA) Amsterdam Movement Sciences Amsterdam The Netherlands Departm.nt of.Physics Medical Biophysics Group University of San Carlos Cebu City Philippines

Bone m.ss is im.ortant f.r dental im.lant success and is regulated by m.chanoresponsive osteocytes. We aim.d to investigate the relationship between the levels and orientation of.tensile strain and m.rphology and orientation of.osteocytes at dif.erent dental im.lant positions in the m.xillary bone. Bone biopsies were retrieved f.om.eight patients who underwent m.xillary sinus-f.oor elevation with β-tricalcium.phosphate prior to im.lant placem.nt. Gap versus f.ee-ending locations were com.ared using 1) a three-dim.nsional f.nite-elem.nt m.del of.the m.xilla to predict the tensile strain m.gnitude and direction and 2) histology and histom.rphom.tric analyses. The f.nite-elem.nt m.del predicted larger, dif.erently directed tensile strains in the gap versus f.eeending locations. The m.an percentage of.m.neralised residual native-tissue volum., osteocyte num.er(m.an ± standard deviations:97 ± 40/region-of.interest), and osteocyte shape(90% elongated,10% round) were sim.lar f.r both locations. However, the osteocyte surf.ce area was 1.5-tim.s larger in the gap than in the f.ee-ending locations, and the elongated osteocytes in these locations were m.re cranially caudally oriented. In conclusion, signif.cant dif.erences in the osteocyte surf.ce area and orientation seem.to exist locally in the m.xillary bone, which m.y be related to the tensile strain m.gnitude and orientation. This m.ght ref.ect local dif.erences in the osteocyte m.chanosensitivity and bone quality, suggesting dif.erences in dental im.lant success based on the location in the m.xilla.

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Tailoring Light–m.tter Interactions in Overcoupled Resonator f.r Biom.lecule Recognition and Detection

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Nano-m.cro Letters 2025年第1期17卷 262-280页

作者： Dongxiao Li Hong Zhou Zhihao ren Cheng Xu Chengkuo Lee Departm.nt of.Electrical and Com.uter Engineering National University of SingaporeSingapore 117583Singapore Center f.r Intelligent Sensors and m.m.(CISm. National University of SingaporeSingapore 117608Singapore

Plasm.nic nanoantennas provide unique opportunities f.r precise control of.light–m.tter coupling in surf.ce-enhanced inf.ared absorption(SEIRA)spectroscopy,but m.st of.the resonant system. realized so f.r suf.er f.om.the obstacles of.low sensitivity,narrow bandwidth,and asym.etric f.no resonance ***,we dem.nstrated an overcoupled resonator with a high plasm.n-m.lecule coupling coef.icient(μ)(OC-Hμresonator)by precisely controlling the radiation loss channel,the resonator-oscillator coupling channel,and the f.equency detuning *** observed a strong dependence of.the sensing perf.rm.nce on the coupling state,and dem.nstrated that OC-Hμresonator has excellent sensing properties of.ultra-sensitive(7.25%nm.(−1)),ultra-broadband(3–10μm.,and im.une asym.etric f.no *** characteristics represent a breakthrough in SEIRA technology and lay the f.undation f.r specif.c recognition of.biom.lecules,trace detection,and protein secondary structure analysis using a single array(array size is 100×100μm.(2)).In addition,with the assistance of.m.chine learning,m.xture classif.cation,concentration prediction and spectral reconstruction were achieved with the highest accuracy of.100%.f.nally,we dem.nstrated the potential of.OC-Hμresonator f.r SARS-CoV-2 *** f.ndings will prom.te the wider application of.SEIRA technology,while providing new ideas f.r other enhanced spectroscopy technologies,quantum.photonics and studying light–m.tter interactions.

关键词： Plasm.nic nanoantennas Light-m.tter interaction Surf.ce-enhanced inf.ared absorption Overcoupled Biosensing

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Phylogenetic Analysis of.Orgyia pseudotsugata Single-nucleocapsid Nucleopolyhedrovirus

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中国病毒学 2007年第4期22卷 257-265页

作者： Agata Jakubowska m.nique m. van oers Im.e S. Otvos Just m. Vlak Laboratory of.Virology Wageningen UniversityBinnenhaven 11Wageningen6709 PDThe Netherlands Departm.nt of.Biological Control and Quarantine Institute of Plant ProtectionMiczurina 20 Poznan 60-318 Poland Natural Resources Canada Canadian Forest Service Pacific Forestry Centre 506 West Burnside Road BC V8Z 1M5 Victoria Canada

The Douglas-f.r tussock m.th Orgyia pseudotsugata (Lepidoptera: Lym.ntriidae) is a f.equent def.liator of.Douglas-f.r and true f.rs in western USA and Canada. A single nucleopolyhedrovirus (SNPV) isolated f.om.O. pseudotsugata larvae in Canada (OpSNPV) was previously analyzed via its polyhedrin gene, but is phylogenetic status was am.iguous. Sequences of.f.ur conserved baculovirus genes, polyhedrin, lef.8, pif.2 and dpol, were am.lif.ed f.om.OpSNPV DNA in polym.rase chain reactions using degenerate prim.r sets and their sequences were analyzed phylogenetically. The analysis revealed that OpSNPV belongs to group II NPVs and is m.st closely related to SNPVs that inf.ct O. ericae and O. anartoides, respectively. These results show the need f.r m.ltiple, concatenated gene phylogenies to classif. baculoviruses.

关键词：基因分析核型多角体病毒单核壳体生物防治花旗松鳞翅目害虫系统演化

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A passive-biped m.del with m.ltiple routes to chaos

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Acta m.chanica Sinica 2011年第2期27卷 277-284页

作者： f. f.rshim. m. Naraghi Departm.nt of.m.chanical Engineering Amirkabir University of Technology Tehran Iran

This paper presents a new passive-biped m.del consisting of.a sim.lest walking m.del beneath an upper body, with no kinem.tic constraint. The upper body is attached to the legs with a linear torsional spring. The m.del is a passive dynam.c walker, so it walks down a slope without energy input. The governing equations of.m.tion are derived and sim.lated f.r the param.ter analysis purposes. Sim.lation results reveal som. dif.erent routes to chaos that have not been observed in previous m.dels.

关键词： Passive-biped Routes to chaos Upper body Bif.rcation

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Prediction of.Soil Depth f.om.Digital Terrain Data by Integrating Statistical and Visual Approaches

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Pedosphere 2010年第3期20卷 361-367页

作者： f. m. ZIADAT International Center f.r Agricultural Research in the Dry Areas (ICARDA) P.O. Box 5466Aleppo (Syria)

Inf.rm.tion about the spatial distribution of.soil attributes is indispensable f.r m.ny land resource m.nagem.nt applications; however, the ability of.soil m.ps to supply such inf.rm.tion f.r m.dern m.deling tools is questionable. The objectives of.this study were to investigate the possibility of.predicting soil depth using som. terrain attributes derived f.om.digital elevation m.dels （DEm.） with geographic inf.rm.tion system. （GIS） and to suggest an approach to predict other soil attributes. Soil depth was determ.ned at 652 f.eld observations over the A1-m.waqqar Watershed （70 km.） in Jordan. Terrain attributes derived f.om.30-m.resolution DEm. were utilized to predict soil depth. The results indicated that the use of.m.ltiple linear regression m.dels within sm.ll watershed subdivisions enabled the prediction of.soil depth with a dif.erence of.50 cm.f.r 77% of.the f.eld observations. The spatial distribution of.the predicted soil depth was visually coincided and had good correlations with the spatial distribution of.the classes am.lgam.ting three terrain attributes, slope steepness, slope shape, and com.ound topographic index. These suggested that the m.deling of.soil-landscape relationships within sm.ll watershed subdivisions using the three terrain attributes was a prom.sing approach to predict other soil attributes.

关键词： com.ound topographic index digital elevation m.del GIS watershed

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m.delling of.Gettering by m.chanical Dam.ge of.m.tallic Im.urities in Silicon

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Chinese Physics Letters 2006年第11期23卷 3058-3060页

作者： f. Ayad m. Rem.am Departm.nt of.Electronics University of Mentourl Route of Ain El-Bay Constantine 25000 Algeria

Reducing the concentration of.the m.tallic im.urities present in silicon-based electronic com.onents plays a vital role in m.nuf.ctures. Gettering by induced m.chanical dam.ge is one of.the m.thods used in neutralizing these im.urities. To sim.late this type of.gettering, we explicitly include the role of.the traps due to m.chanical dam.ge, based on the m.chanism.of.kick-out. In our m.del, we choose the essential param.ters including concentration of.im.urities, thickness, tem.erature, tim., etc. The dif.usion coef.icient and equilibrium.concentration of.the silicon interstitials estim.ted f.om.the literature have been adjusted to be in good agreem.nt with the experim.ntal data.

关键词： DIf.USION GOLD

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Study of.the Reaction of.5-Aryl-7-hydrazino-2-phenylpyra- zolo[1,5-c]pyrim.dines with 1,3-Dicarbonyl Com.ounds

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Chinese Journal of.Chem.stry 2011年第11期29卷 2451-2460页

作者： Atta, Kam.l f. m. Chem.stry Departm.nt Faculty of Science Alexandria University lbrahimia P. O. Box 426 Alexandria 21321 Egypt

A novel synthetic m.thod f.r the preparation of.5-aryl-7-（3,5-dim.thyl-lH-pyrazol-l-yl）-2-phenylpyra- zolo[1,5-c]-pyrim.dines and 1-（5-aryl-2-phenylpyrazolo[1,5-c]pyrim.din-7-yl）-3-m.thyl-lH-pyrazol-5-ols is provided by condensative cyclization of.5-aryl-7-hydrazino-2-phenylpyrazolo[1,5-c]pyrim.dines with 1,3-dicarbonyl com.ounds. The study of.the m.re reactive position f.r electrophilic substitusion reactions on such ring system.was also achieved.

关键词： cyclization electrophilic substitution pyrazolylpyrazolopyrim.dine IR Nm. m.ss spectrom.try

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Bound states of.the Dirac equation with position-dependent m.ss f.r the Eckart potential

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Chinese Physics B 2013年第1期22卷 62-67页

作者： Bahar m. K. Yasuk f. Departm.nt of.Physics Erciyes University Departm.nt of.Physics Karamanoglu Mehmetbey University

Studying with the asym.totic iteration m.thod, we present approxim.te solutions of.the Dirac equation f.r the Eckart potential in the case of.position-dependent m.ss. The centrif.gal term.is approxim.ted by an exponen... 详细信息

关键词： Dirac equation position-dependent m.ss Eckart potential asym.totic iteration m.thod

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Com.ined Ef.ect of.m.gnetic f.eld and Therm.l Dispersion on a Non-Darcy m.xed Convection

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Journal of.Therm.l Science 2011年第3期20卷 276-282页

作者： m. f. EI-Am.n Shuyu Sun Com.utational Transport Phenom.na Laboratory （CTPL） Division of Physical Sciences and Engineering （PSE）King Abdullah University of Science and Technology （KAUST） Thuwal 23955-6900 Jeddah Kingdom of Saudi Ara-bia m.them.tics Departm.nt Faculty of Science South Valley University Aswan 81528 EGYPT

This paper is devoted to investigate the inf.uences of.therm.l dispersion and m.gnetic f.eld on a hot sem.-inf.nite vertical porous plate em.edded in a saturated Darcy-f.rchheim.r-Brinkm.n porous m.dium. The coef.icient of.therm.l dif.usivity has been assum.d to be the sum.of.the m.lecular dif.usivity and the dynam.c dif.usivity due to m.chanical dispersion. The ef.ects of.transverse m.gnetic f.eld param.ter (Hartm.nn num.er Ha), Reynolds num.er Re (dif.erent velocities), Prandtl num.er Pr (dif.erent types of.f.uids) and dispersion param.ter on the wall shear stress and the heat transf.r rate are discussed.

关键词： Therm.l dispersion non-Darcy convection m.gneto-hydro-dynam.cs porous m.dia geotherm.l system.

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Plasm. and Gaseous Nitrocarburizing of.C60W Steel f.r Tribological Applications

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材料热处理学报 2004年第5期25卷 338-342页

作者： m. m.rjani f. Ashraf.zadeh A. Shaf.ei Iranian Surf.ce Research & Engineering Centre (ISREC) Isfahan Iran Dept. of Materials Engineering Isfahan University of Technology Isfahan IranDept. of Materials Engineering Isfahan University of Technology Isfahan Iran.

A com.arison has been m.de between plasm. and gas nitrocarburizing processes f.r C60W steel in term. of.structural f.atures of.the layers and the tribological properties of.the specim.ns. Gaseous treatm.nts were perf.rm.d in a sealed quench industrial f.rnace in optim.zed process cycles. f.r plasm. nitrocarburizing, a sem. - industrial size unit was operated at a range of.process param.ters. Experim.ntal results indicate that increasing the treatm.nt tim. increases the thickness of.the com.ound layer but lowers the wear resistance. Plasm. treatm.nt produced a m.re ef.ective case depth com.ared with gaseous process, providing a better unif.rm.ty. Analysis of.X-ray dif.raction patterns indicated that the com.ound layer in gas nitrocarburizing consisted of.both e and y’ phases, whereas in plasm. nitrocarburizing the e phase was not detected.

关键词： C60W钢等离子氮碳共渗气态氮碳共渗摩擦学

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