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4688篇 您的检索式:作者名="Hutchinson"
    题名 作者 年代 出处 被引量
1琼东南盆地块体搬运体系对天然气水合物形成的控制作用显示文摘琼东南盆地深水区中新世以来构造运动不活跃,自中新世以来沉积物厚度达5 000~9 000m,Ya35-1-2井显示更新世地层沉积物主要以泥质与砂泥互层的细粒沉积物为主,深部流体垂向运移通道不发育。高分辨率地震资料和3D地震资料表明,琼东南盆地的上新世及其以上地层存在大量气烟囱和块体搬运体系。气烟囱为深部流体垂向运移提供通道,沉积物在搬运过程中发生重塑,由于沉积和压实作用使MTD具有相对较高电阻率、高密度异常和渗透率降低,是烃类气体聚集的良好盖层,有利于天然气水合物形成。王秀娟 吴时国 董冬冬 郭依群 Hutchinson Deborah 2011海洋地质与第四纪地质2011,31,1:27
2Kikuchi-Fujimoto病显示文摘Kikuchi—Fujimoto病,或称组织细胞坏死性淋巴结炎,是一种自限性疾病。其特征是良性的淋巴结肿大,可伴有发热和系统性症状。该病最常累及亚裔人,常为小于40岁的年轻成人患者。受累淋巴结常显示副皮质区凋亡坏死,可见大量核碎片以及组织细胞、浆样树突细胞和CD8阳性的T细胞增生,但缺乏中性粒细胞浸润。Kikuchi—Fujimoto病的病变进程分3期:增生期、坏死期和黄色瘤期。Hutchinson C B Wang E.Kikuchi-fujimoto disease Arch Patbol Lab Med 樊祥山(摘译) 2010临床与实验病理学杂志2010,26,3:19
3长江口宝山孔沉积物中多环芳烃的分布显示文摘长江口宝山一个典型孔沉积物中多环芳烃 (PAHs)研究表明 :PAHs总量分布在 (0 .0 8~ 11.74)× 10 -6。总的和单个PAHs化合物随深度发生明显的变化 ,主要特征为亚表层含量最大 ,然后向表层以及随深度的增加而趋于降低。依据荧蒽 /(荧蒽 +芘 )值以及 2~ 3环与 3~ 4环PAH化合物分布特点 ,显示出热解成因 (主要为大气沉降 )可能是孔沉积物 ,尤其是亚表面中PAHs的主要来源。但从甲基萘与萘的比率所显示的PAHs分布样式来看 ,孔剖面附近的污水排放也将可能是重要的石油成因的PAHs来源。文中提出 ,两种输入的叠加混合 ,是产生上述分布特征的主要原因。另外 ,河口及近岸沉积物及其水系统的物化条件、沉积速率。刘敏 许世远 俞立中 P J Baugh S M Hutchinson 2000海洋环境科学2000,19,4:16
4用ANUDEM建立水文地貌关系正确DEM的方法研究显示文摘针对区域尺度的径流、水土流失定量评价和植被适宜性评价等研究工作需要,利用1∶25万数字地形图和ANUDEM软件,对黄土丘陵区中等分辨率水文地貌关系正确DEM建立方法进行了研究。结果表明该方法所建立的DEM,可以正确反映地貌梁、沟结构及其与流水线网络的关系,对地形描述的能力优于TIN方法建立的DEM;利用ANUDEM和1∶25万地形图插值建立黄土丘陵区DEM的三个主要参数分别为分辨率50或100,计算迭代次数40,第二糙率系数0.8。杨勤科 Tim R McVicar Tom G VanNiel Mike Hutchinson 李领涛 2006测绘科学2006,31,6:13
5国际胃袖状切除专家共识:基于>12000手术病例的最佳操作指南显示文摘腹腔镜胃袖状切除术(1aparoscopic sleeve gastrectomy,LSG)系相对较新的减重手术方式。因其操作相对简单、治疗肥胖合并疾病及减重效果明显,逐步得以广泛接受。目前美国代谢与减重手术协会将其推荐为肥胖症治疗的单独标准术式。2011年3月25~26日,苏远涛 徐安安 朱江帆 Diaz AA Arvidsson D Baker RS Basso N Bellanger D Boza C El Mourad H France M Gagner M Galvao-Neto M Higa KD Himpens J Hutchinson CM Jacobs M Jorgensen JO Jossart G Lakdawala M Nguyen NT Nocca D Prager G Pomp A Ramos AC Rosenthal RJ Shah S Vix M Wittgrove A Zundel N 2013中国微创外科杂志2013,13,9:12
6使教材在ESP课堂行之有效的九条原则显示文摘为了ESP教材的开发,人们付出了很大的努力,花费了大量的时间和资金。虽然建立了学生需求综合分析系统,使教材能够尽量切近学生的目标需求(target needs),但是,无论如何切近,仍然有一个如何使之在课堂教学中行之有效的问题。ESP教材不仅应当有效地反映语言使用情况,而且应当成为语言学习的有效工具。需求分析可以向我们提供大量的有关学生目标语言需求的内容及特性方面的情况,却很少或根本不能说明如何去获得目标能力(target compete-ce)。由此可见。Tom Hutchinson 杨坚民 1992外语教学理论与实践1992,,3:7
7ABCD^(2) risk score does not predict the presence of cerebral microemboli in patients with hyper-acute symptomatic critical carotid artery stenosis显示文摘Introduction:ABCD^(2) risk score and cerebral microemboli detected by transcranial Doppler(TCD)have been separately shown to the predict risk of recurrent acute stroke.We studied whether ABCD2 risk score predicts cerebral microemboli in patients with hyper-acute symptomatic carotid artery stenosis.Participants and methods:We studied 206 patients presenting within 2 weeks of transient ischaemic attack or minor stroke and found to have critical carotid artery stenosis(≥50% ).86 patients(age 70±1(SEM:years),58 men,83 Caucasian)had evidence of microemboli;72(84% )of these underwent carotid endarterectomy(CEA).120 patients(age 72±1 years,91 men,113 Caucasian)did not have microemboli detected;102(85% )of these underwent CEA.Data were analysed using X2 and Mann–Whitney U tests and receiver operating characteristic(ROC)curves.Results:140/206(68% :95% CI 61.63 to 74.37)patients with hyper-acute symptomatic critical carotid stenosis had an ABCD2 risk score≥4.There was no significant difference in the NICE red flag criterion for early assessment(ABCD^(2) risk score≥4)for patients with cerebral microemboli versus those without microemboli(59/86 vs 81/120 patients:OR 1.05 ABCD2 risk score≥4(95% CI 0.58 to 1.90,p=0.867)).The ABCD2 risk score was<4 in 27 of 86(31% :95% CI 21 to 41)embolising patients and in 39 of 120(31% :95% CI 23 to 39)without cerebral microemboli.After adjusting for pre-neurological event antiplatelet treatment(APT),area under the curve(AUC)of ROC for ABCD2 risk score showed no prediction of cerebral microemboli(no pre-event APT,n=57:AUC 0.45(95% CI 0.29 to 0.60,p=0.531);preevent APT,n=147:AUC 0.51(95% CI 0.42 to 0.60,p=0.804)).Conclusions:The ABCD2 score did not predict the presence of cerebral microemboli or carotid disease in over one-quarter of patients with symptomatic critical carotid artery stenosis.On the basis of NICE guidelines(refer early if ABCD2≥4),assessment of high stroke risk based on ABCD2 scoring may lead to inappropriate delay in urgent treatment in many patients.Mahmud Saedon Charles E Hutchinson Christopher H E Imray Donald R J Singer 2017Stroke & Vascular Neurology2017,2,2:6
8传感器非线性输入输出信号反演处理中的“归十”算法显示文摘介绍一种传感器中非线性输入输出信号反演的所谓'归十'算法.其要点是将最大和最小输出信号分别作为坐标轴的十和零.其它输出信号按比例位于其中.输入信号可表示成'归十'的输出信号的五阶反演多项式,即五阶交错级数.该多项式的一阶和二阶项系数的近似值可从两组样本值解其联立方程而得到.其它高阶项系数可从它们可能的最小值到最大值逐步代入多项式,多次迭代后使各计算值接近相应样本值而得到.这些高阶项系数最小值至最大值的范围可从大多数试验的各种可能数据分布情况利用规范化多项式拟合法估计得到,以使寻找最佳系数的范围缩小.最后又进行输出信号的'去十'化处理,得到输入与此输出信号的五阶反演多项式.以酒精敏感器件的输入输出信号反演为例加以说明.输入信号是等量的酒精,输出信号是敏感元件的电阻或其上的电压降.输出信号经微处理器处理后,酒精量便以反演结果而被显示.反演的精度为酒精量的±1.5%.孙以材 边翠华 高骞 李晓丽 Harry Hutchinson 2009电子学报2009,37,11:5
9难治性疼痛和高血压在急性B型主动脉夹层中的重要性:国际急性主动脉夹层登记的意见显示文摘急性B型主动脉夹层患者,可表现出对药物治疗无效的反复、难治性疼痛和(或)难治性高血压,当出现这些症状时有时可作为介入治疗的指征。研究者利用国际急性主动脉夹层登记(international registry of a-cute aortic dissection,IRAD)的资料调查难治性疼痛和(或)难治性高血压对急性B型主动脉夹层患者临床转归的影响。张玲玉 叶鹏 Trimarchi S Eagle KA Nienaber CA Pyeritz RE Jonker FH Suzuki T O'Gara PT Hutchinson SJ Rampoldi V Grassi V Bossone E Muhs BE Evangelista A Tsai TT Froehlich JB Cooper JV Montgomery D Mein-hardt G Myrmel T Upchurch GR Sundt TM Issel-bacher EM 2010中华高血压杂志2010,18,12:4
10Generalizing J_2 flow theory: Fundamental issues in strain gradient plasticity显示文摘It has not been a simple matter to obtain a sound extension of the classical J_2 flow theory of plasticity that in- corporates a dependence on plastic strain gradients and that is capable of capturing size-dependent behaviour of metals at the micron scale. Two classes of basic extensions of clas- sical J_2 theory have been proposed: one with increments in higher order stresses related to increments of strain gradi- ents and the other characterized by the higher order stresses themselves expressed in terms of increments of strain gra- dients. The theories proposed by Muhlhaus and Aifantis in 1991 and Fleck and Hutchinson in 2001 are in the first class, and, as formulated, these do not always satisfy ther- modynamic requirements on plastic dissipation. On the other hand, theories of the second class proposed by Gudmundson in 2004 and Gurtin and Anand in 2009 have the physical deficiency that the higher order stress quantities can change discontinuously for bodies subject to arbitrarily small load changes. The present paper lays out this background to the quest for a sound phenomenological extension of the rate- independent J_2 flow theory of plasticity to include a de- pendence on gradients of plastic strain. A modification of the Fleck-Hutchinson formulation that ensures its thermo- dynamic integrity is presented and contrasted with a compa- rable formulation of the second class where in the higher or- der stresses are expressed in terms of the plastic strain rate. Both versions are constructed to reduce to the classical J_2 flow theory of plasticity when the gradients can be neglected and to coincide with the simpler and more readily formulated J_2 deformation theory of gradient plasticity for deformation histories characterized by proportional straining.John W. Hutchinson 2012Acta Mechanica Sinica2012,28,4:4
11HIGH-ENERGY IONS PRODUCED IN EXPLOSIONS OF SUPERHEATED ATOMIC CLUSTERS显示文摘T Ditmire J W G Tisch E Springate M B Mason N Hay R A Smith J Marangos and M H R Hutchinson 0,,:4
12Posterolateral dislocation of the knee:Recognizing an uncommon entity显示文摘Posterolateral dislocations of the knee are rare injuries.Early recognition and emergent open reduction is crucial.A 48-year-old Caucasian male presented with right knee pain and limb swelling 3 d after sustaining a twisting injury in the bathroom.Examination revealed the pathognomonic anteromedial 'pucker' sign.Anklebrachial indices were greater than 1.0 and symmetrical.Radiographs showed a posterolateral dislocation of the right knee.He underwent emergency open reduction without an attempt at closed reduction.Attempts at closed reduction of posterolateral dislocations of the knee are usually impossible because of incarceration of medial soft tissue in the intercondylar notch and may only to delay surgical management and increase the risk of skin necrosis.Magnetic resonance imaging is not crucial in the preoperative period and can lead to delays of up to 24 h.Instead,open reduction should be performed once vascular compromise is excluded.Colin YL Woon Mark R Hutchinson 2016World Journal of Orthopedics2016,7,6:3
13Interface crack between two elastic layers显示文摘Zhigang Suo John W. Hutchinson 1990International Journal of Fracture1990,,1:2
14Mechanism-based strain gradient plasticity— I. Theory显示文摘H. Gao Y. Huang W.D. Nix J.W. Hutchinson 1999Journal of the Mechanics and Physics of Solids1999,,6:2
15Interpolating mean rainfall using thin plate smoothing splines显示文摘M. F. Hutchinson 1995International Journal of Geographical Information Science1995,,4:2
16热浸镀锌超高强钢板钒微合金化技术研究显示文摘对超高强度钢板进行热处理,模拟热浸镀锌和合金化镀锌工艺的热循环,并考察获得的力学性能和微观组织。研究用钢含有适量的碳(~0.2%)、锰(1.2%)和铬(0.4%),保证钢板在奥氏体化后在镀锌前的连续退火线上进行快速冷却时能够完全转变成马氏体。采用不同的钒含量(0~0.1%)和氮含量(0.002%~0.012%),研究这些微合金化元素对回火马氏体强度的影响。尤其与高氮相配合情况下,钒有助于抵抗回火效应,因此在镀锌后大部分原始强化贡献被保留下来,使得钢的抗拉强度超过1 000 MPa。使用铝或硅进行不同脱氧试验,发现在同一碳含量下两者具有相同的强度水平,但是Si镇静钢的弯曲性能明显优异。对退火钢板进行微观组织观察,但是钒产生有益作用的原因还未完全掌握。通过研究得出这样结论:钒微合金化对耐腐蚀超高强度钢板的开发而言是一种极具前景的途径。Hutchinson B Martin D Karlsson O Lindberg F Thoors H Marceau R K W Taylor A S 2016钢铁钒钛2016,37,6:2
17Mechanisms controlling the durability of thermal barrier coatings显示文摘A.G. Evans D.R. Mumm J.W. Hutchinson G.H. Meier F.S. Pettit 2001Progress in Materials Science2001,,5:2
18钒微合金化钢的热影响区韧性显示文摘研究了结构钢单道次焊接接头,尤其是靠近融合线位置的粗晶热影响区(CGHAZ)的组织和力学性能。通常,这个区域的韧性比母材和焊缝金属的韧性要低很多,所以CGHAZ是最容易发生断裂的薄弱位置。重点关注钒微合金化钢板,并且与相同强度级别的铌微合金化钢板进行对比。为了充分利用钒的强化效果,有必要将氮含量提高至0.01%;为优化钢的性能,必须考虑钒与氮的配合。Fahlstrm K Hutchinson B Komenda J Lindh-Ulmgren E Martin D Beladi H 师仲然 王瑞珍 2015钢铁钒钛2015,36,3:2
19Ecological risk assessment of endocrine disrupters 显示文摘Hutchinson TH Roun R Rugger KE 2000Environ Health Perspect2000,108,11:2
20Segmental Kinematic Coupling of the Human Spinal Column during Locomotion显示文摘As one of the most important daily motor activities, human locomotion has been investigated intensively in recent decades. The locomotor functions and mechanics of human lower limbs have become relatively well understood. However, so far our understanding of the motions and functional contributions of the human spine during locomotion is still very poor and simul- taneous in-vivo limb and spinal column motion data are scarce. The objective of this study is to investigate the delicate in-vivo kinematic coupling between different functional regions of the human spinal column during locomotion as a stepping stone to explore the locomotor function of the human spine complex. A novel infrared reflective marker cluster system was constructed using stereophotogrammetry techniques to record the 3D in-vivo geometric shape of the spinal column and the segmental position and orientation of each functional spinal region simultaneously. Gait measurements of normal walking were conducted. The preliminary results show that the spinal column shape changes periodically in the frontal plane during locomotion. The segmental motions of different spinal functional regions appear to be strongly coupled, indicating some synergistic strategy may be employed by the human spinal column to facilitate locomotion. In contrast to traditional medical imaging-based methods, the proposed technique can be used to investigate the dynamic characteristics of the spinal column, hence providing more insight into the functional biomechanics of the human spine.Guo-ru Zhao Lei Ren Lu-quan Ren John R. Hutchinson Li-mei Tian Jian S. Dai 2008Journal of Bionic Engineering2008,5,4:2
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