检索结果-南通市图书馆

d.sc.iminative pred.tion： Simultaneous and.sequential enc.unter experiments

c.rrent Zoology 2012年第4期58卷 649-657页

作者： c. d. beatty d. W. FRANKS d.partment of Biology Santa Clara University Santa Clara California USA c.0}@ sc..ed. York c.ntre for c.mplex Systems Analysis and Department of Biology and Department of Computer Science University ofYork York YO10 5YW UK

There are many situations in whic. the ability of animals to d.stinguish between two similar looking objec.s c.n have signific.nt selec.ive c.nsequenc.s. For example, the objec.s that require d.sc.imination may be ed.ble versus d.fend.d.prey, pred.tors versus non-pred.tors, or mates of varying quality. Working from the premise that there are situations in whic. d.sc.imi- nation may be more or less suc.essful, we hypothesized.that ind.vid.als find.it more d.ffic.lt to d.stinguish between stimuli when they enc.unter them sequentially rather than simultaneously. Our stud. has wid. biologic.l and.psyc.ologic.l implic.tions from the perspec.ive of signal perc.ption, signal evolution, and.d.sc.imination, and.c.uld.apply to any system where ind.vid.als are making relative jud.ments or c.oic.s between two or more stimuli or signals. While this is a general princ.ple that might seem intuitive, it has not been experimentally tested.in this c.ntext, and.is often not c.nsid.red.in the d.sign of mod.ls or experiments, or in the interpretation of a wid. range of stud.es. Our stud. is d.fferent from previous stud.es in psyc.ology in that a） the level of similarity of stimuli are grad.ally varied.to obtain selec.ion grad.ents, and.b） we d.sc.ss the implic.tions of our stud. for spec.fic.areas in ec.logy, suc. as the level of perfec.ion of mimic.y in pred.tor-prey systems. Our experiments provid. evid.nc. that it is ind.ed.more d.ffic.lt to d.stinguish between stimuli - and.to learn to d.stinguish between stimuli - when they are enc.untered.sequentially rather than simultaneously, even if the intervening time interval is short .

关键词： Rec.iver psyc.ology Stimulus selec.ion d.sc.imination Imperfec. mimic.y Pred.tion

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Heating, ventilating, and.air c.nd.tioning analysis and.d.sign Faye c. Mc.uiston, Jerald.d. Parker, Jeffrey d. Spitler. 5th ed.

Heating, ventilating, and air conditioning analysis and desi...

引用

2000年

作者： Faye c. Mc.uiston Jerald.d. Parker Jeffrey d. Spitler.

来源：畅想之星图书光盘版（南... 评论

在线全文

畅想之星图书光盘版（南通市图书馆镜像）

学校读者我要写书评

暂无评论

Preparation of spec.alists in mining surveying work in Mongolia and.d.rec.ion of its c.ange in new ec.nomic.situation

引用

中国有色金属学会会刊：英文版 2005年第S1期15卷 272-274页

作者： d. d.nd.v c. Altantsetseg Sc.ool of Mining Engineering Mongolian State University of Science and Technology MongoliaSchool of Mining Engineering Mongolian State University of Science and Technology Mongolia

d.e to the rapid.growth of the mining sec.or of Mongolia, the need.for preparing mining surveying spec.alists is inc.easing signific.ntly. The history of preparing highly ed.c.ted.mining surveying spec.alists and.putting their ed.c.tion into prac.ic. in our c.untry is an interesting one. The main c.nter to prepare mining surveying spec.alists is the Sc.ool of Mining Engineering of the Mongolian State University of Sc.enc. and.Tec.nology. This paper introd.c.s the work that is being d.ne tod.y to prepare mining surveying spec.alists in Mongolia and.its future purposes.

关键词： mining surveying mapping high ed.c.tion training researc. sc.entific work new environment future prospec.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Mac.onutrients and.Health—Steps to Ameliorating the Nutrition Transition Trap

引用

Biomed.c.l and.Environmental Sc.enc.s 2001年第1期14卷 124-129页

作者： d. c. K. ROBERTS Sc.ool of Health Sc.enc.s Faculty of Medicine and Health Sciences

c.untries that have mad. the health transition from a c.mmunic.ble d.sease base to a non c.mmunic.ble d.sease base find.themselves gripped.in an epid.mic.of wealth c.eated.d.seases med.ated.by altered.mac.onutrient intakes, energy intakes and.red.c.ion in physic.l ac.ivity. Avoid.ng the negative impac. of the nutrition transition while ac.epting the positive aspec.s of the wealth transition c.n best be ac.ieved.by foc.ssing on public.sing the benefits of a low fat d.et in the c.ntext of an ac.ive lifestyle. How this is ac.ieved.should.reflec. ec.logic.lly sound.food.prod.c.ion appropriate to national need.. c.untries that ac.ieve this will be in the best position to c.pitalize on the red.c.ion in c.mmunic.ble d.sease rates without c.using a rise in non c.mmunic.ble d.sease rates.

关键词： physic.l ac.ivity food.prod.c.ion

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Simplified.hyd.od.namic.mod.ls for the analysis of marine propellers in a wake-field

引用

Journal of Hyd.od.namic. 2013年第6期25卷 954-965页

作者： d.RANTE d. d.BBIOSO G. TESTA c. c.R-INSEAN The Italian Ship Model Basin

This paper presents a c.mparison among d.fferent hyd.od.namic.mod.ls for the analysis of the unstead. load. d.livered.by a marine propeller working in an axial, non-uniform inflow. Spec.fic.lly, for a propeller subjec.ed.to a wake-field.d.minated.by loc.l high-frequenc. c.anges in spac., the unstead. hyd.oload. pred.c.ed.by the Nakatake formulation are c.mpared.with those given by the Theod.rsen and.Sears theories, respec.ively. d.awbac.s and.potentialities of these approac.es are highlighted.to assess a c.mputationally effic.ent hyd.od.namic.solver for the analysis of operating c.nd.tions where propeller blad.s are signific.ntly perturbed.by a multi-harmonic.onset-flow. Guid.lines c.ming from this investigation may d.ive the c.oic. of a fast and.reliable unstead. propeller mod.ling that represents a good.trad.-off between ac.urac. of simulation and.c.st of c.mputation within implementation in c.mputational Fluid.d.namic. （c.d. solvers. The hyd.od.namic.formulations herein proposed.are valid.ted.through numeric.l c.mparisons with the （ac.urate but c.mputationally expensive） propeller load. pred.c.ed.by a fully 3-d.panel-method.Bound.ry Element Method.（BEM） solver, suited.for the analysis of propellers operating in a c.mplex hyd.od.namic.environment.

关键词： ac.uator d.sk airfoil theories Bound.ry Element Method.(BEM) hyd.od.namic.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Sublethal effec.s of subzero temperatures on the light brown apple moth, Epiphyas postvittana: fitness c.sts in response to partial freezing

引用

Insec. Sc.enc. 2019年第2期26卷 311-321页

作者： Amy c. Morey Robert c. Venette William d. Hutc.ison d.partment of Entomology University of Minnesota St. Paul Minnesota USA USd.. Forest Servic. Northern Research Station St. Paul Minnesota USA

Population responses to envir on mental extremes often d.c.ate the bound. to spec.es' d.stributions. However, population d.namic. at, or near, those range limits may also be affec.ed.by sublethal effec.s. We exposed.late instars and.pupae of an invasive leafroller, Epiphyaspostvittana (Walker)(Lepid.ptera: Tortric.d.e), to c.ld.temperatures and.measured.the effec.s of exposure on subsequent survivorship, d.velopment, and.reprod.c.ion. c.ld.temperature was applied.as ac.te exposure to -10 °c.(a low, but not immed.ately lethal temperature for this spec.es) or the onset of freezing (the peak of the superc.oling point exotherm). Survival was d.fined.as the ability to suc.essfully ec.ose as an ad.lt. We measured.immature d.velopment times, pupal mass, and.ad.lt longevity as proxies of fitness in survivors. Ad.itionally, surviving insec.s were mated.with ind.vid.als that had.not been exposed.to c.ld.to measure fertility. There was no d.fferenc. between the proportion of larvae or pupae that survived.ac.te exposure to -10 °c.and.those exposed.to the c.ntrol temperature. Approximately 17% of larvae and.8% of pupae survived.brief period. with internal ic. formation and.c.ntinued.d.velopment to bec.me reprod.c.ively viable ad.lts. Importantly, surviving the onset of freezing c.me with signific.nt fitness c.sts but not to exposure to -10 °c.most insec.s that survived.partial freezing had.lower fertility and.shorter ad.lt lifespans than either the -10 °c.or c.ntrol group. These results are d.sc.ssed.within the c.ntext of forec.sting invasive in sec. d.stributions.

关键词： fertility invasive spec.es partial freeze toleranc. superc.oling point

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

An evaluation of a perfluoromethylc.c.ohexane(PMc.) permeation plug release vessel(PPRV) in a c.ntrolled.turbulent environment

引用

International Journal of Mining Sc.enc. and.Tec.nology 2015年第2期25卷 243-251页

作者： Jong Ed.und.c. Luxbac.er Kray d. d.partment of Mining and.Minerals Engineering Virginia Tech

The use of sulfur hexafiuorid. （SF6） as a trac.r gas for analyzing und.rground.mine ventilation systems has been prac.ic.d.for over 30 years. As a result, the method. used.to release, sample, and.analyze SF6 are well ac.epted. As the c.mplexity and.size of und.rground.mine ventilation networks inc.ease, the ability of a SF6 to func.ion as a c.nvenient and.rapid.means of analysis d.minishes. The utilization of multiple trac.r gases c.n mitigate this by removing the need.to purge the bac.ground.presenc. of a trac.r before c.nd.c.ing another release and.allowing for a more c.mprehensive evaluation using multi-zone tec.- niques. Rec.nt stud.es have id.ntified.perfluoromethylc.c.ohexane （PMc.） as a possible supplement for SF6 in und.rground.mine ventilation trac.r stud.es. However, the d.ployment of PMc. remains a c.allenge bec.use of this c.mpound. physic.l properties. This paper evaluates a PMc. permeation plug release vessel （PPRV） und.r c.ntrolled.turbulent c.nd.tions. The d.tails of the experimental parameters used.in the evaluation as well as a d.sc.ssion regard.ng the performanc. of the PPRV are inc.ud.d.

关键词： Trac.r gas Und.rground.mines Mine ventilation Perfluoromethylc.c.ohexane

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Forec.sting the impac.s of c.emic.l pollution and.c.imate c.ange interac.ions on the health of wild.ife

引用

c.rrent Zoology 2015年第4期61卷 669-689页

作者： Pamela d. NOYES Sean c. LEMA d.partment of Environmental & Molec.lar Toxic.logy Environmental Health Sciences Center Sinnhuber Aquatic ResearchLaboratory Oregon State University Corvallis OR USA Biologic.l Sc.enc.s d.partment Center for Coastal Marine Sciences California Polytechnic State University San Luis Obispo CA 93407 USA

Global c.imate c.ange is impac.ing organisms, biologic.l c.mmunities and.ec.systems around.the world. While most researc. has foc.sed.on c.arac.erizing how the c.imate is c.anging, inc.ud.ng mod.ling future c.imatic.c.nd.tions and.pred.c.ing the impac.s of these c.nd.tions on biod.versity, it is also the c.se that c.imate c.ange is altering the environmental impac.s of c.emic.l pollution. Future c.imate c.nd.tions are expec.ed.to influenc. both the world.id. d.stribution of c.emic.ls and.the toxi- c.logic.l c.nsequenc.s of c.emic.l exposures to organisms. Many of the environmental c.anges assoc.ated.with a warming global c.imate （e.g., inc.eased.average - and.possibly extreme - temperatures; intense period. of d.ier and.wetter c.nd.tions; red.c.d.oc.an pH; altered.salinity d.namic. in estuaries） have the potential to enhanc. organism susc.ptibility to c.emic.l toxic.ty. Ad.i- tionally, c.emic.l exposures themselves may impair the ability of organisms to c.pe with the c.anging environmental c.nd.tions of the shifting c.imate. Suc. rec.proc.ty in the interac.ions between c.imate c.ange and.c.emic.ls illustrates the c.mplexity inherent in pred.c.ing the toxic.logic.l c.nsequenc.s of c.emic.l exposures und.r future c.imate sc.narios. Here, we summarize what is c.rrently known about the potential rec.proc.l effec.s of c.imate c.ange and.c.emic.l toxic.ty on wild.ife, and.d.pic. c.rrent approac.es and.ongoing c.allenges for inc.rporating c.imate effec.s into c.emic.l testing and.assessment. Given the rapid.pac. of new man-mad. c.emistries, the d.velopment of ac.urate and.rapid.method. to evaluate multiple c.emic.l and.non-c.emic.l stressors in an ec.logic.lly relevant c.ntext will be c.itic.l to und.rstand.ng toxic.and.end.c.ine-d.srupting effec.s of c.emic.l pollutants und.r future c.imate sc.narios [c.rrent Zoology 61 （4）： 669-689, 2015].

关键词： Global wanning Toxic.logy Metals End.c.ine d.sruptors Risk assessment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

An analytic.l stud. of d.ug release kinetic. from a d.grad.ble polymeric.matrix

引用

International Journal of Biomathematic. 2018年第1期11卷 255-277页

作者： Koyel c.akravarty d. c. d.lal d.partment of Mathematic.Ind.an Institute of Tec.nology Guwahati Guwahati 781039 India

In mod.rn d.ys, biod.grad.ble polymeric.matrix used.as the kingpin of loc.l d.ug d.livery system is in the c.nter of attention. This work is c.nc.ntrated.on the formulation of mathematic.l mod.l eluc.d.ting d.grad.tion of d.ug-load.d.polymeric.matrix followed.by d.ug release to the ad.ac.nt biologic.l tissues. Polymeric.d.grad.tion is penc.led.with mass c.nservation equations. d.ug release phenomenon is mod.led.by c.nsid.ring solubilization d.namic. of d.ug partic.es, d.ffusion of the solubilized.d.ug through polymeric.matrix along with reversible d.ssoc.ation/rec.ystallization proc.ss. In the tissue phase, reversible d.ssoc.ation/assoc.ation along with internalization proc.sses of d.ug are taken into ac.ount. For this, a two-phase spatio-temporal mod.l is postu- lated. whic. has ensued.to a system of partial d.fferential equations. They are solved.analytic.lly with appropriate c.oic. of initial, interfac. and.bound.ry c.nd.tions. In ord.r to reflec. the potenc. of the ad.oc.ted.mod.l, the simulated.results are analogized.with c.rrespond.ng experimental d.ta and.found.laud.ble agreement so as to valid.te the applic.bility of the mod.l c.nsid.red. This mod.l seems to foster the d.lic.c. of the mantle enac.ed.by important d.ug kinetic.parameters suc. as d.ffusion c.effic.ents, mass transfer c.effic.ents, partic.e bind.ng and.internalization parameters, whic. is illustrated.through loc.l sensitivity analysis.

关键词： Solubilization internalization tissues.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ultra‑Transparent and.Multifunc.ional IZVO Mesh Elec.rod.s for Next‑Generation Flexible Optoelec.ronic.

引用

Nano-Mic.o Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram d.d.ngale Atul c.Khot c.enjie Yao Nahyun Kim Tae Geun Kim Sc.ool of Elec.ric.l Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea c.mputational Elec.ronic. and.Nanosc.enc. Researc. Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mec.anic.lly d.rable transparent elec.rod.s are essential for ac.ieving long-term stability in flexible optoelec.ronic.***,they are c.uc.al for applic.tions in the field. of energy,d.splay,healthc.re,and.soft *** meshes represent a promising alternative to trad.tional,brittle,metal oxid. c.nd.c.ors d.e to their high elec.ric.l c.nd.c.ivity,optic.l transparenc.,and.enhanc.d.mec.anic.l *** this paper,we present a simple method.for fabric.ting an ultra-transparent c.nd.c.ing metal oxid. mesh elec.rod. using selfc.ac.ing-assisted.*** this method.we prod.c.d.an elec.rod. with ultra-transparenc.(97.39%),high c.nd.c.anc.(Rs=21.24Ωsq^(−1)),elevated.work func.ion(5.16 eV),and.good.mec.anic.l *** also evaluated.the effec.iveness of the fabric.ted.elec.rod.s by integrating them into organic.photovoltaic.,organic.light-emitting d.od.s,and.flexible transparent memristor d.vic.s for neuromorphic.c.mputing,resulting in exc.ptional d.vic. *** ad.ition,the unique porous struc.ure of the vanad.um-d.ped.ind.um zinc.oxid. mesh elec.rod.s provid.d.exc.llent flexibility,rend.ring them a promising option for applic.tion in flexible optoelec.ronic..

关键词： Self-c.ac.ing template Vanad.um-d.ped.ind.um zinc.oxid. mesh Organic.solar c.lls Organic.light-emitting d.od.s Flexible transparent memory

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：