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1华夏南部可能存在Grenville期造山作用:来自基底变质岩中锆石U-Pb定年及Lu-Hf同位素信息显示文摘对华夏地块南部粤中增城和赣南鹤仔3个基底变质岩的地球化学和碎屑锆石年代学研究表明,它们的原岩都是形成于晚新元古代的沉积岩.3个变质沉积岩都主要由新元古代早期(1.0~0.9Ga)的碎屑物质组成,并混有少量中元古代和新元古代中晚期(0.8~0.6Ga)的碎屑物,说明沉积物主要来源于一个遭受过Gondwana大陆聚合事件影响的Grenville期造山带.碎屑锆石的Hf同位素成分显示这些Grenville期锆石可能是造山旋回早期形成的弧与古老大陆碰撞产生的岩浆结晶的.结合华夏地块其他地区~1.0Ga年龄锆石的分布及形态学特征,本文认为华夏地块的南缘很可能曾经存在或者极其靠近一个Grenville期的造山带.而这期造山作用的时代与东印度以及东南极的Grenville造山带一致,且同样受到Gondwana大陆聚合事件的影响.因此,从Rodinia超大陆裂解到Gondwana超大陆聚合期间,华南地块很可能位于澳大利亚西部而与东印度和东南极相邻.王丽娟 于津海 O’Reilly S.Y. Griffin W.L. 孙涛 魏震洋 舒良树 蒋少涌 2008科学通报2008,53,14:52
2克罗恩病:CT小肠成像、MR小肠成像和小肠灌肠造影的比较显示文摘目的前瞻性比较CT和MR小肠成像及小肠灌肠造影3种检查方法发现克罗恩病病人活动性小肠炎症和肠外并发症的准确性。方法机构伦理审查委员会批准本研究计划,并所有参与者知情同意。对连续31例克罗恩病或疑有克罗恩病的病人行CT和MR小肠成像、小肠灌肠造影和回肠结肠镜检查。2位独立的阅片者回顾CT和MR小肠成像及小肠灌肠造影影像以确定活动性末端回肠炎和肠道外并发症的存在。以回结肠镜检查结果作为参考标准,利用受试者工作特性曲线方法来评估CT和MR小肠成像及小肠灌肠造影确定活动性末端回肠炎的准确度。S.S. Lee A.Y. Kim S.K. Yang J. W. Chung S.Y. Kim S.H. Park 孙东辉(译) 万业达(校) 2009国际医学放射学杂志2009,32,4:57
3Grenvillian orogeny in the Southern Cathaysia Block:Constraints from U-Pb ages and Lu-Hf isotopes in zircon from metamorphic basement显示文摘Metamorphic basement rocks in the Cathaysia Block are composed mainly of meta-sediments with different ages. New zircon U-Pb geochronological results from the meta-sedimentary rocks exposed in the Zengcheng and Hezi areas, southern Cathaysia Block, show that they consist dominantly of early Neoproterozoic (1.0―0.9 Ga) materials with minor Paleo- to Mesoproterozoic and late Neoproterozoic (0.8―0.6 Ga) components, suggesting that the detritus mostly come from a Grenvillian orogen. The youngest detrital zircon ages place a constraint on the deposition time of these sediments in Late Neoproterozoic. Zircon Hf isotopic compositions indicate that the Grenvillian zircons were derived from the reworking of Mesoproterozoic arc magmatic rocks and Paleoproterozoic continental crust, implying an arc-continent collisional setting. Single-peak age spectra and the presence of abundant euhedral Grenvillian zircons suggest that the sedimentary provenance is not far away from the sample location. Thus, the Grenvillian orogen probably preexisted along the southern margin of the Cathaysia Block, or very close to the south. Similarity in the ages of Grenvillian orogeny and the influence of the assembly of Gondwana in South China with India and East Antarctic are discussed, with suggestion that South China was more likely linked with the India-East Antarctica continents in Early Neoproterozoic rather than between western Laurentia and eastern Australia.WANG LiJuan YU JinHai S.Y. O'REILLY W.L. GRIFFIN SUN Tao WEI ZhenYang JIANG ShaoYong SHU LiangShu 2008Chinese Science Bulletin2008,53,19:21
4End of Life Experience of Symptom Cluster and Their Management in Hong Kong Chinese Patients with Lung Cancer Who Receive Palliative Radiotherapy显示文摘Breathlessness, fatigue, and anxiety are distressing symptoms for patients with advanced lung cancer, however, they are not relieved by palliative RT and are often viewed as neglected areas of clinical practice. This paper aims to review def initions of, and explore patients' experiences of, breathlessness, fatigue, and anxiety. Further, it will outline existing approaches, both pharmacological and non-pharmacological, to treat them. Current treatments and perceptions of these symptoms will be discussed in the context of Hong Kong health care service. The review of literature also shows that breathlessness, fatigue and anxiety appears to have similar emotional origins. A contemporary approach of using a common pyschoeducational intervention to treat these symptoms together as a cluster in end of life care will be discussed.Carmen W.H. CHAN S.Y. CHAIR Y.Y. CHUI 2009中国肺癌杂志2009,12,5:20
5Difference in the Hot Compressive Behavior and Processing Maps between the As-cast and Homogenized Al-Zn-Mg-Cu(7075) Alloys显示文摘The deformation mechanisms and processing maps of the as-cast Al-Zn-Mg-Cu(7075) aluminum(Al)alloy were studied and compared with those of the homogenized 7075 Al alloy in the temperature range of 573–723 K and in the strain rate range of 10^(-3)–10 s^(-1) to explore a possibility for directly using the ascast 7075 Al alloy as a billet for hot working. The as-cast and homogenized 7075 Al alloys had similar grain sizes and showed similar high-temperature deformation behaviors. The as-cast 7075 Al alloy, however,exhibited higher power efficiencies and smaller unstable ?ow regions compared to the homogenized 7075 Al alloy because of the presence of secondary phases(Mg Zn_2) segregated at the dendritic interfaces in the as-cast microstructure, which were formed during non-equilibrium solidi?cation. These segregated phases provided nucleation sites for dynamic recovery or continuous dynamic recrystallization, and as a result a ?ne and more homogeneous(sub)grain structure could be obtained from the as-cast microstructure compared to the homogenized microstructure. The current work suggested the possibility and advantage of using as-cast microstructures for hot working of aluminum alloys with high content of solutes.S.Y. Park W.J. Kim 2016Journal of Materials Science & Technology2016,32,7:15
6Phosphorylcholine polymer nanocapsules prolong the circulation time and reduce the immunogenicity of therapeutic proteins显示文摘蛋白质治疗,治疗学的蛋白质在那里被交付对待混乱,为治疗疾病被认为最安全、很直接的途径。然而,它的应用被有效策略的少量高度为在他们的管理以后在 vivo 交付蛋白质和治疗学的蛋白质的快速的清理限制。这里,我们表明能显著地延长治疗学的蛋白质的发行量时间以及最小化他们的 immunogenicity 的新奇策略。这被与抵抗蛋白质吸附的 crosslinked phosphorylcholine 聚合物的薄层包含单个蛋白质分子完成。通过广泛的细胞的研究,我们证明 crosslinked phosphorylcholine 聚合物壳有效地阻止包含的蛋白质是由巨噬细胞的 phagocytosed,它在 vivo 在 nanoparticles 的清理起一个必要作用。而且,聚合物壳阻止包含的蛋白质被有免疫力的房间识别。作为结果,对治疗学的蛋白质的有免疫力的回答有效地被压制。这个工作描述一个可行方法延长循环时间并且减少治疗学的蛋白质的 immunogenicity,它可以在多样的疾病的治疗支持新奇蛋白质治疗的发展和申请。Sheng Liang Yang Liu Xin Jin Gan Liu Jing Wen Linlin Zhang Jie Li Xubo Yuan Irvin S.Y. Chen Wei Chen Hui Wang Linqi Shi Xinyuan Zhu Yunfeng Lu 2016Nano Research2016,9,4:11
7克罗蒂面板坝坝身溢洪道设计及运行监测显示文摘克罗蒂面板堆石坝是世界上首次在面板坝顶及下游坝面上布置开敞式溢洪道的工程。该溢洪道自1992 年1 月建成以来已泄洪多次, 其中有两次泄洪持续时间达1 个月之久。虽然迄今为止泄洪流量较小(最大堰上水头仅 0.7 m ), 但从现有观测成果判断, 大坝运行情况良好,推测今后出现最大洪峰(溢洪道的泄流量达245 mS.Y.李 1999水利水电快报1999,20,15:6
8RESEARCH ON THE FORMATION MECHANISM OF INTERNAL CRACK IN THE CONTINUOUS CASTING SLAB显示文摘In view of the periodic bending deformation of solid-liquid interface in the solidification process for continuous casting slab, the variation of temperature gradient and dendritic spacing in the front edge of the solid-liquid interface, and the nucleation and propagation process of crack were studied. It is shown that the bending deformation of the interface results in the temperature field change in the front edge of solid-liquid interface, and the occurrence of temperature gradient along drawing direction results in the growth of secondary dendrites. The initial crack formed during the middle and final stage of solidification may extend to the surface of the casting slab and become an internal crack. The results of the theoretical analysis are basically in agreement with that of the experiment.G.W. Chang G.C. Jin S.Y. Chen X.D. Yue 2007Acta Metallurgica Sinica(English Letters)2007,20,1:6
9一种超高强度低合金钢的拉伸微屈服行为的原位中子衍射研究显示文摘研究了一种超高强度低合金钢与环境裂纹敏感性(EAC)有关的拉伸微屈服行为。宏观屈服强度为1120 MPa,拉伸应力近700 MPa开始微屈服的超高强度低合金钢,其化学成分(质量分数,%)为0.22C-0.25Si-0.70Mn-3.40(Cr+Ni+Mo)-0.13(V+Nb+Ti)。用这种钢制作的深水系泊链环经1273 K淬火和873 K回火,原位中子衍射测量结果表明,对其光滑圆柱试样施加拉力,至应力500 MPa,良好地符合线弹性应变;至700 MPa时,(200)晶面族晶粒优先出现非线弹性应变;至800 MPa,(110)晶面族晶粒也呈非线弹性应变。随着拉力的进一步增大,(200)晶面族晶粒的非线性弹性应变量逐步增加,而(211)晶面族晶粒仍停留在线弹性应变阶段。殷匠 徐平光 ZHANG S.Y. 2013热处理2013,28,6:6
10雷州半岛英峰岭玄武岩中的铁铝榴石巨晶及母岩浆成因显示文摘英峰岭火山岩中的石榴石巨晶以富铁(>20%)、低镁(5.88%~10.87%)和高钙(6.92%~8.16%)为特征. 成分明显变化, 随着Mg#减小, 石榴石中的Ni, V, Sc, Co和重稀土含量逐渐降低, 而Zr, Hf, Ga, Y, Sr, Nb, Zn和轻、中稀土含量逐渐升高. 石榴石母岩浆是一种高度演化的残余岩浆, 强烈亏损Ti, Sr, Hf, Nb和重稀土元素. 母岩浆是由石英拉斑质玄武岩浆经60%以上的单斜辉石、石榴石、斜长石和钛铁矿的分离结晶形成. 这种母岩浆没有喷出地表, 而是滞留于地幔结晶成巨晶堆晶岩. 巨晶与寄主岩是非平衡的.于津海 S.Y. O'Reilly 2001科学通报2001,46,6:5
11MATHEMATICAL MODELS FOR LIQUID-SOLID TWO-PHASE FLOW显示文摘The governing equations, interphase actions, constitutive relations and turbulence closures of the twofluid model and diffusion model for the liquid-solid two-phase flow are studied in this paper. The pressure actions in and between two phases are analyzed, and the governing equations of the two-fluid model are conveniently closed by adding the interphase pressure-difference force into the pressure terms of momentum equations. The constitutive relations for the liquid-solid mixture in the diffusion model are given by the models of Newtonian fluid and Bingham fluid, and the Bingham relation of shear stress and deformation rate for the single-directional shear flow of the mixture is extended to a general form for the multi-directional shear flow. The equation for the interphase velocity difference, which is used to close the generalized diffusion model, is derived from the momentum equations of two-fluid model and then simplified to more useful forms. For the turbulent flow, the mean movement equations of the two-fluid model and diffusion model are derived by using Reynolds averaging method. The closure techniques for the mean movement equations on the levels of zero-order turbulence model and κ-ε turbulence model are suggested. This paper presents the general basis of the mathematical models, which is to be followed by their validations and applications in the near future.Weiming Wu and Sam S.Y. Wang National Center for Computational Hydroscience and Engineering, The University of Mississippi, MS 38677, U.S.A. 2000International Journal of Sediment Research2000,15,3:5
12Elastic deformation behaviour of Ti–24Nb–4Zr–7.9Sn for biomedical applications显示文摘Y.L. Hao S.J. Li S.Y. Sun C.Y. Zheng R. Yang 2006Acta Biomaterialia2006,,2:5
13EXPERIMENTAL STUDY ON REACTION SYNTHESIS OF TiC IN Al-Ti-C SYSTEM显示文摘The reaction process and mechanistn of reaction synthesis of TiC in Al-Ti-C system have been investigated in detail by observing the microstructure of the water quenched preform with SEM and EDX. The results showed that the reaction processing can be divided into three stages: aluminium powder is melted firstly, then titanium dissolves in the melted aluminium and Al3Ti is formed around titanium powder, titanium concentrates around carbon powder and a Ti-rich layer is observed around carbon pariicles,in which titanium atom reacts with carbon atom to synthesize TiC;TiC precipitates out of the melt, and diffuses out of the layer. A solution-precipitation mechanism and a reaction model were set up based on the experimental results.E.L. Zhang B.Yang S.Y. Zeng and Q.C. Li(School of Materials Science and Engineering, Harbin Institute of Technology, BOX 428, Harbin 150001.)China)M.Z.Ma (Jiamusi University Jiamusi 154002, China) 1998Acta Metallurgica Sinica(English Letters)1998,11,4:5
14Xyloglucans of Monocotyledons Have Diverse Structures显示文摘除了在 Poaceae,很少在单子叶植物的主要的墙中对 xyloglucans 的结构被知道。在单子叶植物种类的一个范围的 Xyloglucan 结构被检验。墙准备被孤立,与 6 提取了 ? 与 xyloglucan 特定的 endo- 对待的 M 钠氢氧化物,和摘录(1 4 )-- glucanase 准备。释放的 oligosaccharides 被高效的阴离子交换层析并且由帮助矩阵的激光解吸附作用电离 time-of-flight 团 spectrometry 分析。non-commelinid 单子叶植物的 Oligosaccharide 侧面类似于大多数 eudicotyledons 的那些,显示 xyloglucans 是 fucogalactoxyloglucans,与 XXXG 一个核心主题和 fucosylated 单位 XXFG 和 XLFG。一个例外是 Lemna 未成年者(Araceae ) ,它没产出 fucosylated oligosaccharides 并且有 XXXG 和 XXGn 核心主题。除了 Arecales (手掌) 和 Dasypogonaceae,它有 fucogalactoxyloglucans, commelinid 单子叶植物的 xyloglucans 是在结构上不同。Zingiberales 和 Commelinales 与 XXGn 和 XXXG 核心主题有 xyloglucans;XXFG 单位的小比例,而是没有 XLFG 单位,是在场的。在 Poales, Poaceae 与一个 XXGn 核心主题和没有 fucosylated 单位有 xyloglucans。在另外的 Poales 家庭,一些有 XXXG 和 XXGn 核心主题,其它有仅仅 XXXG;XXFG 单位是在场的,但是 XLFG 单位不是。Yves S.Y. Hsieh Philip J. Harris 2009Molecular Plant2009,2,5:3
15Rock burst and slabbing failure and its influence on TBM excavation at headrace tunnels in Jinping II hydropower station显示文摘Q.M. Gong L.J. Yin S.Y. Wu J. Zhao Y. Ting 2011Engineering Geology2011,,:3
16An updated meta-analysis of adjuvant chemotherapy after curative resection for gastric cancer显示文摘T.S. Liu Y. Wang S.Y. Chen Y.H. Sun 2008European Journal of Surgical Oncology2008,,11:3
17Synthesis of PdNi catalysts for the oxidation of ethanol in alkaline direct ethanol fuel cells显示文摘S.Y. Shen T.S. Zhao J.B. Xu Y.S. Li 2009Journal of Power Sources2009,,4:2
18Archean crustal evolution in the northern Yilgarn Craton: U–Pb and Hf-isotope evidence from detrital zircons显示文摘W.L. Griffin E.A. Belousova S.R. Shee N.J. Pearson S.Y. O’Reilly 20042004 (3-4)2004,,3:2
19起源于非冠状动脉主动脉窦的局灶性房性心动过速的电生理特征及导管消融Ho S.Y. 王亭忠 2006世界核心医学期刊文摘(心脏病学分册)2006,0,11:2
20Compressibility and hydraulic conductivity of clayey soil mixed with calcium bentonite for slurry wall backfill: Initial assessment显示文摘R.-D. Fan Y.J. Du Krishna R. Reddy S.Y. Liu Y.L. Yang 2014Applied Clay Science2014,,:2
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