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5719篇 您的检索式:作者名="Carpenter"
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1恢复力与可持续发展:在瞬息万变的世界中增强适应能力显示文摘由于在以往的自然资源政策上逐渐暴露出了两个带根本性的错误,人们开始意识到在环境管理理论和实践方面需要进行一场全球性的重大改革。第一个错误是毫无保留地假定生态系统对人类利用所作出的反应是呈线性关系、是可以预测和控制的。第二个错误是认定人娄社会与天然系统可以分别对待,不必联系在一起进行考虑。然而,从世界各地收集到的证据表明,天然系统和人类社会系统是以非线性方式运行的,在其动态运行过程中均有其显著的极限,而且,人类社会与生态系统表现为一种紧密相联的、复杂的且不断演变的综合系统。本文是代表瑞典政府环境咨询委员会编写的一份报告的摘要,这份报告是作为向2002年8月26日~9月4日在南非约翰内斯堡召开的可持续发展世界首脑会议献礼的论文而撰写的。从概念上说,恢复力是一种能缓冲变化所带来的影响、学习知识和求得发展的能力,我们将它作为在一个纷纭复杂、快速变化的世界中,是否真正懂得如何维护和提高适应能力的一种参照标准来使用。在社会、生态综合系统中,有两种有用的工具可用来提高恢复力,一种是结构严谨的工作方案,另一种是积极的适应力管理。这两种工具都需要而且有助于形成这样一种社会环境:具有灵活开放的组织机构和多层次的监管体制,允许学习适应力方面的知识和提高适应力但又不妨碍对来来的发展作出选择。Carl Folke Steve Carpenter Thomas Elmqvist Lance Gunderson C.S.Holling Brian Walker 刘林群 2002AMBIO-人类环境杂志2002,31,5:34
2Approaches to functional genomics in filamentous fungi显示文摘在细丝状的真菌的基因功能的学习是在很最近的年里做了大进展的研究的一个领域。很多转变和基因操作策略被开发了并且适用于经济地重要的细丝状的真菌和 oomycetes 的一张多样、很快膨胀的表。与真菌的染色体的重要数字,定序的现在或被定序的、功能的基因组学答应揭开来年里的很多新信息。这评论讨论在在细丝状的真菌检验基因功能被做了并且描述不同途径的优点和限制的最近的进展。Richard J Weld Kim M Plummer Margaret A Carpenter Hayley J Ridgway 2006Cell Research2006,16,1:19
3T1ρ/T2 mapping and histopathology of degenerative cartilage in advanced knee osteoarthritis显示文摘AIM To investigate whether normal thickness cartilage in osteoarthritic knees demonstrate depletion of proteoglycan or collagen content compared to healthy knees.METHODS Magnetic resonance(MR) images were acquired from5 subjects scheduled for total knee arthroplasty(TKA)(mean age 70 years) and 20 young healthy control subjects without knee pain(mean age 28.9 years). MR images of T1ρ mapping, T2 mapping, and fat suppressed proton-density weighted sequences were obtained.Following TKA each condyle was divided into 4 parts(distal medial, posterior medial, distal lateral, posterior lateral) for cartilage analysis. Twenty specimens(bone and cartilage blocks) were examined. For each joint,the degree and extent of cartilage destruction was determined using the Osteoarthritis Research Society International cartilage histopathology assessment system.In magnetic resonance imaging(MRI) analysis, 2 readers performed cartilage segmentation for T1ρ/T2 values and cartilage thickness measurement.RESULTS Eleven areas in MRI including normal or near normal cartilage thickness were selected. The corresponding histopathological sections demonstrated mild to moderate osteoarthritis(OA). There was no significant difference in cartilage thickness in MRI between control and advanced OA samples [medial distal condyle, P = 0.461;medial posterior condyle(MPC), P = 0.352; lateral distal condyle, P = 0.654; lateral posterior condyle, P = 0.550],suggesting arthritic specimens were morphologically similar to normal or early staged degenerative cartilage.Cartilage T2 and T1ρ values from the MPC were significantly higher among the patients with advanced OA(P= 0.043). For remaining condylar samples there was no statistical difference in T2 and T1ρ values between cases and controls but there was a trend towards higher values in advanced OA patients. CONCLUSION Though cartilage is morphologically normal or near normal, degenerative changes exist in advanced OA patients. These changes can be detected with T2 and T1ρ MRI techniques.Benjamin S Kester Philip M Carpenter Hon J Yu Taiki Nozaki Yasuhito Kaneko Hiroshi Yoshioka Ran Schwarzkopf 2017World Journal of Orthopedics2017,8,4:12
4Nature-inspired chiral metasurfaces for circular polarization detection and full-Stokes polarimetric measurements显示文摘The manipulation and characterization of light polarization states are essential for many applications in quantum communication and computing,spectroscopy,bioinspired navigation,and imaging.Chiral metamaterials and metasurfaces facilitate ultracompact devices for circularly polarized light generation,manipulation,and detection.Herein,we report bioinspired chiral metasurfaces with both strong chiral optical effects and low insertion loss.We experimentally demonstrated submicron-thick circularly polarized light filters with peak extinction ratios up to 35 and maximum transmission efficiencies close to 80% at near-infrared wavelengths(the best operational wavelengths can be engineered in the range of 1.3-1.6μm).We also monolithically integrated the microscale circular polarization filters with linear polarization filters to perform full-Stokes polarimetric measurements of light with arbitrary polarization states.With the advantages of easy on-chip integration,ultracompact footprints,scalability,and broad wavelength coverage,our designs hold great promise for facilitating chip-integrated polarimeters and polarimetric imaging systems for quantum-based optical computing and information processing,circular dichroism spectroscopy,biomedical diagnosis,and remote sensing applications.Ali Basiri Xiahui Chen Jing Bai Pouya Amrollahi Joe Carpenter Zachary Holman Chao Wang Yu Yao 2019Light(Science & Applications)2019,8,1:12
5水雾在扑灭大型工业燃油炊具油池火的应用(英文)显示文摘大型商用燃油炊具面积巨大,并涉及到大量热油,灭这种大型商用燃油炊具火灾非常困难。利用水雾系统对大型商用燃油炊具保护进行了研究,从理论和试验对水雾系统的灭火机理以及扑灭大型油池火灾需要达到的相关标准进行了研究。根据灭火机理和相关标准,设计了两套水雾灭火系统,进行了一系列的实体火灾试验。研究表明,两套水雾灭火系统成功地扑灭了大型油池火灾,有效预防了复燃。其灭火性能取决于水雾系统类型、喷射压力以及炊具罩的位置。DON CARPENTER ANDREW K. KIM 2006消防科学与技术2006,25,2:4
6The strain seismograms of P- and S-waves of a local event recorded by four-gauge borehole strainmeter显示文摘At a sampling rate of 100 samples per second,the YRY-4 four-gauge borehole strainmeters(FGBS) are capable of recording transient strains caused by seismic waves such as P and S waves or strain seismograms. At such a high sampling rate, data from the YRY-4 strainmeters demonstrate fairly satisfactory self-consistency. The strain tensor seismograms demonstrate the senses of motion of P waves, that is, the type of seismic wave travels in the direction of the maximum normal strain change. The observed strain patterns of S waves significantly differ from those of P waves and should contain information about the source mechanism. Spectrum analysis shows that the strain seismograms are consistent with conventional broadband seismograms from the same site.Zehua Qiu Shunliang Chi Zhenming Wang Seth Carpenter Lei Tang Yanping Guo Guang Yang 2015Earthquake Science2015,28,3:4
7Upper Echelons Research Revisited: Antecedents, Elements, and Consequences of Top Management Team Composition显示文摘Mason A. Carpenter 2004Journal of Management2004,,6:3
8From Metaphor to Measurement: Resilience of What to What?显示文摘Steve Carpenter Brian Walker J. Marty Anderies Nick Abel 2001Ecosystems2001,,8:3
9In vitro expansion of a multipotent population of human neural progenitor cells显示文摘Carpenter MK Cui X Hu ZY 0,,:3
10Development of Low Carbon Microalloyed High Strength Ultra-Thin Cast Strip Products Produced by the Castrip~ Process With Excellent Strength-Ductility Properties显示文摘The CASTRIP* process produces a range of high strength Ultra-thin Cast Strip (UCS) products (380-550 MPa) in thicknesses between 0.9 mm and 1.5 mm, which is very challenging to produce via conventional hot and cold rolled processing routes. The twin roll CASTRIP process fully exploits the hardenability and strengthening potential of Nb in a low C-Mn-Nb-V microalloyed steel type. Significant microstructural strengthening from solute Nb was obtained, even at low microalloying levels, as well as modest Mn additions, through enhancing the hardenability and further strengthening was obtained in coated products by exploiting age hardening during processing on a continuous hot dip galvanising line. Atom probe tomography and TEM determined that Nb was retained in solid solution and subsequent age hardening resulted from the formation of Nb and V rich nanosized particles. Age hardening was achieved without loss of ductility producing galvanised strip with an excellent strength-ductility combination (Y.S. >600 MPa, T.E. >10%).C.R. Killmore K.R. Carpenter H.R. Kaul D.G. Edelman J.M. Cairney S.P. Ringer J.G. Williams P.C. Campbell W.N. Blejde 2011Journal of Iron and Steel Research(International)2011,18,S1:3
11Clinical and Pathologic Correlation of 84 Mucinous Cystic Neoplasms of the Pancreas: Can One Reliably Differentiate Benign From Malignant (or Premalignant) Neoplasms?显示文摘Michael G. Sarr Herschel A. Carpenter Lawrence P. Prabhakar Todd F. Orchard Steven Hughes Jon A. van Heerden Eugene P. DiMagno 2000Annals of Surgery2000,,2:3
12Frequency of antibiotic resistance in Helicobacter pylori strains isolated from the northern population of Iran显示文摘Amin Talebi Bezmin Abadi Tarang Taghvaei Ashraf Mohabbati Mobarez Beth M. Carpenter D. Scott Merrell 2011The Journal of Microbiology2011,,6:2
13Jaundice: an important, poorly recognized risk factor for diminished survival in patients with adenocarcinoma of the head of the pancreas显示文摘Steven M. Strasberg Feng Gao Dominic Sanford David C. Linehan William G. Hawkins Ryan Fields Danielle H. Carpenter Elizabeth M. Brunt Carolyn Phillips 2014HPB2014,,2:2
14Lymphoma of the appendix显示文摘Carpenter BW 1991Gastroin-test Radiol1991,16,3:2
15临界转换的早期预警信号显示文摘从生态系统到金融市场和气候在内的很多复杂动力系统,都会有临界点,在这样的点上系统可能会发生突变,从而演变到一个对立的动力模式上。在这样的临界点到达之前对其进行预测极为困难,但是现在,不同科学领域的研究工作表明,普遍性的早期预警信号有迹可循。对一系列不同类型的系统来说,这些信号会指示是否正在趋近一个临界阈值。Marten Scheffer Jordi Bascompte William A. Brock Victor Brovkin Stephen R. Carpenter Vasilis Dakos Hermann Held Egbert H. van Nes Max Rietkerk George Sugihara 李迎春 闫伟 蒋长胜(译) 左玉玲(校) 2009国际地震动态2009,,9:2
16福音音乐显示文摘Bill Carpenter 魏波 2005音乐天地2005,,9:2
17The price of change: the role of ceo compensation in strategic variation and deviation from industry strategy norms显示文摘Mason A. Carpenter 2000Journal of Management2000,,6:2
18In vitro expansion of a multipotent population of human neural progenitor cells显示文摘Melissa K Carpenter Xia Cui Zhong-yi HU 1999Exp Neurol1999,158,:2
19Whitefly feeding behavior and retention of a foregut-borne crinivirus exposed to artificial diets with different pH values显示文摘Jaclyn S. Zhou Angel Y. S. Chen Martin Drucker Nicole H. Lopez Alyssa Carpenter James C. K. Ng 2017Insect Science2017,24,6:2
20Nitinol Stent Implantation Versus Balloon Angioplasty for Lesions in the Superficial Femoral Artery and Proximal Popliteal Artery: Twelve-Month Results From the RESILIENT Randomized Trial显示文摘John R. Laird Barry T. Katzen Dierk Scheinert Johannes Lammer Jeffrey Carpenter Maurice Buchbinder Rajesh Dave Gary Ansel Alexandra Lansky Ecaterina Cristea Tyrone J. Collins Jeffrey Goldstein Michael R. Jaff 2010Circulation: Cardiovascular Interventions2010,,:2
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