检索结果-南通市图书馆

Spatial distribution of display sites of Grey peacock-pheasant in relation to micro-habitat and predators during the breeding season

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

Avian Research 2018年第2期9卷 111-122页

作者： Somying Thunhikorn Matthew j.Grainger Philip j.K.McGowan Tommaso Savini Conservation Ecology Program School of Bioresources and Technology King Mongkut’s University of Technology Thonburi School of Biology Newcastle University

Background： The destruction and fragmentation of forest in Southeast Asia is accelerating biodiversity loss, resulting in a range of management and conservation actions. For some species, a detailed understanding of microhabitat selection is critical for this, especially in the breeding ***： To understand the factors that explain how specific habitats are used by the Grey peacock-pheasant（Polyplectron bicalcaratum） in the breeding season, we used camera trapping and microhabitat sampling to assess the microhabitat selection of males. We also looked at their interaction with predators in an area of 1200 m × 1200 m at the Hua Kha Khaeng Wildl fe Sanctuary, Tha land, between january and May ***： We show that display scrapes are situated on flatter open areas with small saplings and some vines, typified by low horizontal understory density. We hypothesise that this allows a trade-off between courtship display and the avoidance of predators. Our study showed that the position of Grey peacock-pheasant display scrapes regularly overlapped with predators within the same microhabitat. We hypothesise that the species＇ behavioural responses to temporal variation in predation risk allows them to avoid most ***： Particular microhabitats are required for Grey peacock-pheasant *** avoid predators at these places by being active when predators are not.

关键词： Huai Kha Khaeng Wildlife Sanctuary Display scrape Species accumulation Predator-prey Polyplectron bicalcaratum

基于高危人群的肺癌筛查成本效果及筛查效率影响因素分析

在线全文

学校读者我要写书评

暂无评论

中华预防医学杂志 2018年第1期52卷 30-30页

作者： Cressman S peacock S j Tammemagi MC 刘成成黄慧瑶石菊芳不详国家癌症中心/中国医学科学院北京协和医学院肿瘤医院城市癌症早诊早治项目办公室

美国肺癌筛查试验（NLST）显示，低剂量螺旋CT（LDCT）筛查可降低美国20％肺癌死亡率。掌握筛查的成本效果证据有助于政府政策制定和筛查项目效率提高，但目前关于LDCT筛查是否具有经济学效益尚无定论。因此，Sonya等应用PLCO项目开发... 详细信息

美国肺癌筛查试验（NLST）显示，低剂量螺旋CT（LDCT）筛查可降低美国20％肺癌死亡率。掌握筛查的成本效果证据有助于政府政策制定和筛查项目效率提高，但目前关于LDCT筛查是否具有经济学效益尚无定论。因此，Sonya等应用PLCO项目开发的肺癌风险预测模型，将NLST研究对象分为干预组（高危人群筛查）和对照组（高危和非高危人群未筛查组）；基于马尔科夫模型评价高危人群筛查组的成本效果，并探讨其影响因素。

关键词：高危人群筛查成本效果影响因素癌筛查肺癌筛查试验政府政策 CT筛查

乳腺立体定位活检后不典型导管增生的恶变风险:病灶数目与完全清除钙化的影响

在线全文

学校读者我要写书评

暂无评论

国际医学放射学杂志 2010年第4期 380-381页

作者： j.R.Kohr P.R.Eby K.H.Allison W.B.DeMartini R.L.Gutierrez S.peacock 李宁 Department of Radiology University of Washington Medical CenterSeattleWash.USA

目的评价不典型导管增生(ADH)少于3处的病人在立体定向9或11号针真空辅助乳腺活检(VABB)完全清除钙化后,向高级别进化成恶性的比率是否能够低到足以免除手术切除。材料与方

关键词：导管 ADH 木质部病灶数目乳腺乳房

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

作为找矿方法的氡气测量

铀矿地质 1964年第4期 34-40页

作者：比考克(j.D.peacock) 威里姆桑(R.Williamson) 周镭庭

本文描述了一种用来测量土壤或基岩中氡气的轻便仪器,并以苏格兰南部已知铀矿脉上的测量结果作为应用的例子。在正常的工作条件下每天可测80点。讨论了使用该法寻找铀矿时的一些影响因素。

关键词：电离室辐射探测器仪器发射极输出器

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

利用氡气测量法进行普查

铀矿地质 1963年第3期 40-40页

作者： j.D. peacock R. Williamson

本文介绍了一种用来测量土壤中氡气的轻便仪器,并以苏格兰南部已知铀矿脉上的测量结果作为应用的例子。氡气方法一般不适用于区域范围内的初步普查,但在有利的条件下或在已知矿体附近,用闪烁探测器来测量氡浓度、圈定矿体是可能的。这... 详细信息

本文介绍了一种用来测量土壤中氡气的轻便仪器,并以苏格兰南部已知铀矿脉上的测量结果作为应用的例子。氡气方法一般不适用于区域范围内的初步普查,但在有利的条件下或在已知矿体附近,用闪烁探测器来测量氡浓度、圈定矿体是可能的。这里使用的是一种光电型氡气测量仪,是在AERE型1320G式仪器的基础上经过改进而制成的,其中的发光体是方块形的硫化锌。

关键词：矿脉氧气工业气体矿体

急性重型高血压导致的急性肾脏损害及其心血管系统的临床表现

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中华高血压杂志 2010年第9期18卷 836-836页

作者：张玲玉叶鹏 Szczech LA Granger CB Dasta.j. Amin A peacock WF McCullough PA Devlin jW Weir MR Katz jN Anderson Fa.j. Wyman A Varon j

目前关于急性重型高血压导致的肾脏功能障碍及其心血管系统临床表现之间的关系所知甚少。该文研究急性重型高血压住院患者的基础慢性肾脏病(依据肾小球滤过率)、急性肾脏损害(acute kidney injury,AKI),肾小球滤过率的下降程度大于或者... 详细信息

目前关于急性重型高血压导致的肾脏功能障碍及其心血管系统临床表现之间的关系所知甚少。该文研究急性重型高血压住院患者的基础慢性肾脏病(依据肾小球滤过率)、急性肾脏损害(acute kidney injury,AKI),肾小球滤过率的下降程度大于或者等于基础值的25%)和心血管系统临床表现之间的关系。方法:和结果:参与急性高血压治疗研究项目的急性重型高血压患者,[第一段]

关键词：急性肾脏损害心血管系统重型高血压临床表现肾小球滤过率慢性肾脏病高血压患者急性高血压

Inside-Out 3D Reversible Ion-Triggered Shape-Morphing Hydrogels

在线全文

学校读者我要写书评

暂无评论

Research 2019年第1期2019卷 1237-1248页

作者： X.Du H.Cui Q.Zhao j.Wang H.Chen Y.Wang Institute of Biomedical&Health Engineering Shenzhen Institutes of Advanced Technology(SIAT)Chinese Academy of Sciences(CAS)Shenzhen518035China

Shape morphing is a critical aptitude for the survival of organisms and is determined by anisotropic tissue composition and directional orientation of micro-and nanostructures within cell walls,resulting in diferent swelling *** eforts have been dedicated to mimicking the behaviors that nature has perfected over billions of *** present a robust strategy for preparing 3D periodically patterned single-component sodium alginate hydrogel sheets cross-linked with Ca^(2+)ions,which can reversibly deform and be retained into various desirable inside-out shapes as triggered by biocompatible ions(Na^(+)/Ca^(2+)).By changing the orientations of the patterned microchannels or triggering with Na^(+)/Ca^(2+)ions,various 3D twisting,tubular,and plantinspired architectures can be facilely *** only can the transformation recover their initial shapes reversibly,but also it can keep the designated shapes without continuous *** inside-out 3D reversible ion-triggered hydrogel transformations shall inspire more attractive applications in tissue engineering,biomedical devices,and sof robotics felds.

关键词： swelling preparing attractive

REVIEW OF PARTICLE PHYSICS

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

Chinese Physics C 2014年第9期38卷 1-4页

作者： K.A.Olive K.Agashe C.Amsler M.Antonelli j.-F.Arguin D.M.Asner H.Baer H.R.Band R.M.Barnett T.Basaglia C.W.Bauer j.j.Beatty V.I.Belousov j.Beringer G.Bernardi S.Bethke H.Bichsel O.Biebe E.Blucher S.Blusk G.Brooijmans O.Buchmueller V.Burkert M.A.Bychkov R.N.Cahn M.Carena A.Ceccucci A.Cerr D.Chakraborty M.-C.Chen R.S.Chivukula K.Copic G.Cowan O.Dahl G.D'Ambrosio T.Damour D.de Florian A.de Gouvea T.DeGrand P.de jong G.Dissertor B.A.Dobrescu M.Doser M.Drees H.K.Dreiner D.A.Edwards S.Eidelman j.Erler V.V.Ezhela W.Fetscher B.D.Fields B.Foster A.Freitas T.K.Gaisser H.Gallagher L.Garren H.-j.Gerber G.Gerbier T.Gershon T.Gherghetta S.Golwala M.Goodman C.Grab A.V.Gritsan C.Grojean D.E.Groom M.Grnewald A.Gurtu T.Gutsche H.E.Haber K.Hagiwara C.Hanhart S.Hashimoto Y.Hayato K.G.Hayes M.Heffner B.Heltsley j.j.Hernandez-Rey K.Hikasa A.Hocker j.Holder A.Holtkamp j.Huston j.D.jackson K.F.johnson T.junk M.Kado D.Karlen U.F.Katz S.R.Klein E.Klempt R.V.Kowalewski F.Krauss M.Kreps B.Krusche Yu.V.Kuyanov Y.Kwon O.Lahav j.Laiho P.Langacker A.Liddle Z.Ligeti C.-j.Lin T.M.Liss L.Littenberg K.S.Lugovsky S.B.Lugovsky F.Maltoni T.Mannel A.V.Manohar W.j.Marciano A.D.Martin A.Masoni j.Matthews D.Milstead P.Molaro K.Monig F.Moortgat M.j.Mortonson H.Murayama K.Nakamura M.Narain P.Nason S.Navas M.Neubert P.Nevski Y.Nir L.Pape j.Parsons C.Patrignani j.A.peacock M.Pennington S.T.Petcov Kavli IPMU A.Piepke A.Pomarol A.Quadt S.Raby j.Rademacker G.Raffel B.N.Ratcliff P.Richardson A.Ringwald S.Roesler S.Rolli A.Romaniouk L.j.Rosenberg j L.Rosner G.Rybka C.T.Sachrajda Y.Sakai G.P.Salam S.Sarkar F.Sauli O.Schneider K.Scholberg D.Scott V.Sharma S.R.Sharpe M.Silari T.Sjostrand P.Skands j.G.Smith G.F.Smoot S.Spanier H.Spieler C.Spiering A.Stahl T.Stanev S.L.Stone T.Sumiyoshi M.j.Syphers F.Takahashi M.Tanabashi j.Terning L.Tiator M.Titov N.P.Tkachenko N.A.Tornqvist D.Tovey G.Valencia G.Venanzoni M.G.Vincter P.Vogel A.Vogt S.P.Wakely W.Walkowiak C.W.Walter D.R.Ward G.Weiglein D.H.Weinberg E.j.Weinberg M.White L.R.Wiencke C.G.Wohl L.Wolfenstein j.Womersley C.L. University of Minnesota School of Physics and Astronomy116 Church St.S.E.MinneapolisMN 55455USA University of Maryland Department of PhysicsCollege ParkMD 20742-4111USA Albert Einstein Center for Fundamental Physics Universitat BernCH-3012 BernSwitzerland Lab.Nazionali di Frascati dell'INFN CP 13via E.Fermi40I-00044 Frascati(Roma)Italy Departement de physique Universite de MontrealC.P.6128succ.centre-villeMontreal(Quebec) H3C 3J7Canada Pacific Northwest National Laboratory 902 Battelle BoulevardRichlandWA 99352USA Department of Physics and Astronomy University of OklahomaNormanOK 73019USA Department of Physics University of WisconsinMadisonWI 53706USA Physics Division Lawrence Berkeley National Laboratory1 Cyclotron RoadBerkeleyCA 94720USA CERN European Organization for Nuclear ResearchCH-1211 Geneve 23Switzerland Department of Physics The Ohio State University191 W.Woodruff Ave.ColumbusOH 43210 COMPAS Group Institute for High Energy PhysicsRU- 142284ProtvinoRussia LPNHE IN2P3-CNRS et Universites de Paris 6 et 7F-75252 ParisFrance Max-Planck-Institute of Physics 80805 MunichGermany Department of Physics University of WashingtonSeattleWA 98195USA Ludwig-Maximilians-Universitat Fakultdt für PhysikSchellingstr.4D-80799 MünchenGermany Enrico Fermi Institute and Department of Physics University of ChicagoChicagoIL 60637-1433USA Department of Physics Syracuse UniversitySyracuseNY13244USA Department of Physics Columbia University538 W.120th StreetNew YorkNY10027 USA High Energy Physics Group Blackett LaboratoryImperial CollegePrince Consort RoadLondon SW7 2AZUK jefferson Lab 12000 Jefferson Ave.Newport NewsVA 23606USA Department of Physics University of VirginiaPO Box 400714CharlottesvilleVA 22904USA Fermi National Accelerator Laboratory P.O.Box 500BataviaIL 60510USA Kavli Institute for Cosmological Physics University of ChicagoChicagoIL 60637-1433USA Department of Physics and Astronomy University of SussexFalmerBrighton BN1 9QHUK Department o

The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,283 new measurements from 899 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as heavy neutrinos, supersymmetric and technicolor particles, axions, dark photons, etc. All the particle properties and search limits are listed in Summary Tables. We also give numerous tables, figures, formulae, and reviews of topics such as Supersymmetry, Extra Dimensions, Particle Detectors, Probability, and Statistics. Among the 112 reviews are many that are new or heavily revised including those on： Dark Energy, Higgs Boson Physics, Electroweak Model, Neutrino Cross Section Measurements, Monte Carlo Neutrino Generators, Top Quark, Dark Matter, Dynamical Electroweak Symmetry Breaking, Accelerator Physics of Colliders, High-Energy Collider Parameters, Big Bang Nucleosynthesis, Astrophysical Constants and Cosmological Parameters. A booklet is available containing the Summary Tables and abbreviated versions of some of the other sections of this full Review. All tables, listings, and reviews （and errata） are also available on the Particle Data Group website： http ：//pdg. lbl. gov.

关键词： REVIEW OF PARTICLE PHYSICS

Microstructure and mechanical properties of Al-12Si and Al-3.5Cu-1.5Mg-1Si bimetal fabricated by selective laser melting

在线全文

学校读者我要写书评

暂无评论

journal of Materials Science & Technology 2020年第1期36卷 18-26页

作者： P.Wang C.S.Lao Z.W.Chen Y.K.Liu H.Wang H.Wendrock j.Eckert S.Scudino Additive Manufacturing Institute College of Mechatronics and Control EngineeringShenzhen UniversityNanhai Street 3688518060ShenzhenP.R.China Institute for Complex Materials IFW DresdenHelmholtzstraβe 20D-01069DresdenGermany Guangdong Provincial Key Laboratory ofMicro/Nano Optomechatronics Engineering College of Mechatronics and Control EngineeringShenzhen University Nanhai Street 3688518060ShenzhenP.R.China Erich Schmid Institute of Materials Science Austrian Academy of SciencesJahnstraJie 12A-8700LeobenAustria Department of Materials Science Montanuniversitat LeobenJahnstraJSe 12A-8700LeobenAustria

An Al-12 Si/Al-3.5 Cu-1.5 Mg-1 Si bimetal with a good interface was successfully produced by selective laser melting(SLM).The SLM bimetal exhibits four successive zones along the building direction:an Al-12 Si zone,an interfacial zone,a texture-strengthening zone and an Al-Cu-Mg-Si *** interfacial zone(fiber *** backscatter diffraction analysis shows that the grains grow gradually from the interfacial zone to the Al-Cu-Mg-Si zone along the building ***,a strongfiber texture develops at the Al-Cu-Mg-Si side of the interfacial zone and disappears gradually along the building *** bimetal exhibits a room temperature yield strength of 267±10 MPa and an ultimate tensile strength of 369±15 MPa with elongation of 2.6±0.1%,revealing the potential of selective laser melting in manufacturing dissimilar materials.

关键词： Selective laser melting Aluminum alloys Bimetals Microstructure Mechanical properties