|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Impacts of climate variability and extremes on global net primary production in the first decade of the 21st century显示文摘许多研究估计了全球陆上的网的大小主要生产(NPP ) ,而是它的变化,空间地并且时间地,仍然保持不明确。由使用一个改进基于过程的陆上的生态系统模型( DLEM ,动态陆地生态系统模型),我们提供多重环境因素导致的全球陆上的 NPP 的估计并且在整个 第21 世纪的第一十年在生物群系和全球层次并且沿着纬度检验陆上的 NPP 的反应到气候可变性。模型模拟在 20002009 期间估计 54.6 Pg C 年 1 的平均全球陆上的 NPP,从 2002 ~ 56.4 Pg C 的干燥的年里的 52.8 Pg C 年 1 变化 2008 的湿年里的年 1 。在湿年里,与十的平均数相比的陆上的 NPP 的大增加在 Amazonia,非洲和澳大利亚是流行的。在干燥的年里,然而,我们与十的平均数相比在全球陆上的 NPP 发现了 3.2% 减小,首先由于在热带区域的有限潮湿供应。在全球水平,降水在陆上的 NPP 解释了约 63% 变化,当剩余的在温度和另外的环境因素被归因于变化时。降水是在低纬度的区域在陆上的 NPP 决定内部年度的变化的主要因素。在中间纬度、高纬度的区域,然而,温度可变性大部分控制了陆上的 NPP 的大小。我们的结果暗示温暖并且增加气候极端事件的那投射气候将改变大小和全球陆上的 NPP 的空间与时间的模式。 | PAN Shufen TIAN Hanqin DANGAL Shree R.S. OUYANG Zhiyun LU Chaoqun YANG Jia TAO Bo REN Wei BANGER Kamaljit YANG Qichun ZHANG Bowen | 2015 | Journal of Geographical Sciences2015，25，9： | 15 |
| 2 | 北京市葡萄炭疽病病原菌的分子鉴定显示文摘葡萄是北京市重要的经济作物,葡萄炭疽病是栽培中的常见病害,造成减产10%-20%。近年来,常采用多基因系统发育分析结合形态学特征鉴定该病病原菌,日本(Suzaki,2011)、澳大利亚(Greer et al.,2011)等国家将其鉴定为胶孢炭疽菌Colletotrichum gloeosporioides和(或)尖孢炭疽菌C.acutatum. | 刘梅 Jayawardena R.S. 刘阳 邢启凯 燕继晔 李兴红 | 2018 | 植物保护学报2018，45，2： | 13 |
| 3 | 记述原始锥石类中的一个新属种显示文摘本文描述了我国四川峨嵋灯影组麦地坪段原始锥石类中的一个罕见的具有三个柱面的Emeiconulariatrigemmegen.etsp.nov.。并与具有四个柱面的Carinachitids和六个柱面的Hexangulaconularids进行了比较讨论。经扫描电镜观察,该属种壳体由二层组成。内层由棱柱状胶结物组成,外层由微粒状磷酸盐颗粒组成。它们被认为是经过改造了的原生磷酸盐质壳壁。 | 钱逸 H.V.伊顿 R.S.柯克斯 朱茂炎 卓二军 | 1997 | 微体古生物学报1997，14，4： | 10 |
| 4 | Signaling pathways for germ cell death in adult cynomolgus monkeys(Macaca fascicularis) induced by mild testicular hyperthermia and exol enous testosterone treatment显示文摘 | Jia, Y. Hikim, A.P.S. Lue,Y.H. Swerdloff, R.S. Vera,Y. Zhang,X. S. Hu, Z. Y. Li, Y. C. Liu, Y. X. Wang, C | 2007 | 南京医科大学学报(自然科学版)2007，27，10： | 10 |
| 5 | Effects of small additions of Zn on the microstructure, mechanical properties and corrosion resistance of WE43B Mg alloys显示文摘Zn is a commonly used alloying element for Mg alloys owing to its beneficial effects on mechanical properties. To improve the mechanical and corrosion properties of WE43B Mg alloys, the effects of 0–0.7wt% Zn addition on the microstructure and properties of sample alloys were investigated. Addition of Zn to as-cast WE43B alloy promoted the formation of the Mg12Nd phase;by contrast, after T6 heat treatment, the phase composition of WE43B alloys with and without Zn addition remained mostly the same. A long-period stacking ordered phase was predicted by CALPHAD calculation, but this phase was not observed in either the as-cast or heat-treated Zn-containing WE43B alloys. The optimum temperature and duration of T6 heat treatment were obtained using CALPHAD calculations and hardness measurements. Addition of Zn resulted in a slight reduction in the average grain size of the as-cast and T6 heat-treated WE43B alloys and endowed them with increased corrosion resistance with little effect on their mechanical properties. | A.V. Koltygin V.E. Bazhenov R.S. Khasenova A.A. Komissarov A.I. Bazlov V.A. Bautin | 2019 | International Journal of Minerals,Metallurgy and Materials2019，26，7： | 9 |
| 6 | Friction stir welding and processing显示文摘 | R.S. Mishra Z.Y. Ma | 2005 | Materials Science & Engineering R2005，，1： | 5 |
| 7 | Variations in seed germination ofHippophae salicifolia with different presoaking treatments显示文摘H 的成熟种子。 salicifolia ,从五起源镇定(即 Hanuman Chatti , Helang , Lata , Rambara 和 Janggal Chatti )在西方 Himalaya ,印度,与层化被对待(在为 15 , 30 和 60 天的 4 °C )并且在 GA 3的不同集中( 5 , 10 , 20 公里), KNO 3( 50 , 100 , 200 公里)并且硫脲( 50 , 100 , 200 公里)在种子萌芽决定变化的答案。结果表明从在不同预先播种的处理下面的不同起源的种子的萌芽率显著地在控制与那些相比被增加(24%30%) 。与硫脲(100 公里) 对待的种子有最高的萌芽率(76%83% 为不同种子采购原料) ,由那些列在后面(63%71% 为不同种子采购原料) 有层化的 pretreated (4 ° C, 30 天) 。GA3 处理显著地弄短吝啬的萌芽时间(MGT ) 并且改善种子发芽率。考虑实际适用性和费用有效性,硫脲(100 公里) 和层化(在 4 ° C ) 为种子萌芽的处理通过 H 的种子为集体增加被推荐。在西方 Himalaya 的村庄 / 森林托儿所的 salicifolia,印度。 | S. Airi, I.D. Bhatt A. Bhatt, R.S. Rawal, U. Dhar | 2009 | Journal of Forestry Research2009，20，1： | 4 |
| 8 | Electrical and optical properties of lithium borate glasses doped with Nd_2O_3显示文摘Glass series with general formula 25Li2O-(75-x)B2O3-xNd2O3 was prepared by conventional melt quench technique. Electrical and optical characterizations of these glasses were carried out. It was observed that conductivity of glasses decreased and activation energy increased with the addition of Nd2O3. The density and refractive index of the glasses increased while optical band gap and radiation length decreased due to structural changes. | R.S. Gedam D.D. Ramteke | 2012 | Journal of Rare Earths2012，30，8： | 4 |
| 9 | CALCULATION OF 3-D TRANSIENT TEMPERATURE FIELD DURING LASER TRANSFORMATION HARDENING PROCESS显示文摘A three-dimensional transient heat transfer model for laser transformation hardening process has been developed in this paper. The finite size of the laser treated sample, the surface heat loss of the sample, the latent heat of phase transformation and the temperature dependence of thermal properties of materials were considered. The heat source was considered as a moving Gaussian heat flux with a constant velocity. Three-dimension unequally spatial grid explicit finite difference equations, alternating direction implicit finite difference equations and implicit finite difference equations were deduced respectively. Three programs to calculate the temperature field were developed using Fortran language. The transient temperature fields of C22, 42CrMo, C60 steel samples during laser transformation hardening process were calculated using these programs, and the widths and depths of laser transformation hardening zones were also predicted. C22, 42CrMo, C60 steel samples were treated by CO2 laser,the widths and depths of laser transformation hardening zones of these samples were also measured experimentally. The calculated widths and depths of laser transformation hardening zones are in good agreement with the experimental results. | L. W Zhang, R.S. Wang, J. Th.M.De Hosson, Y.L. Xia and F. G. Wang 1) The State Key Lab. for Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116023, China 2) Department of Applied Physics, University of Gro | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，2： | 4 |
| 10 | 20 years of excavation response studies at AECL’s Underground Research Laboratory显示文摘 | R.S. Read | 2004 | International Journal of Rock Mechanics and Mining Sciences2004，，8： | 4 |
| 11 | 东盟国家的专家治国论者和政治显示文摘根据这些国家的经验,独裁主义和部长级专家治国论者的优势看来确实是联系在一起的,不过这种概括的说法还需要推敲琢磨。从另外一个角度来看,可以说,人们会说哪里政治竞争的程度激烈(象马来西亚政治竞争,特别是马来民族统一机构内部的那种政治竞争),那里具有专家治国论者的技能的高级部长们就往往需要获得政治上的技能和政治力量的基础,这样他们就更希望取得“政治专家治国论者”的资格,而不仅仅是专家治国论者的称号。 在印度尼西亚和菲律宾的独裁政府中,专家治国论者的主要特征是显示不出政治能力和缺乏政治基地。他们所起的作用不仅取决于政权的独裁性质以及政府对非政治化政策的追求,而且也取决于这样的事实,那就是这种政策不在于动员任何基层组织给予支持。这两个国家没有哪一个试图使一个政党一成不变,“从业集团”(Golkar)和“新社会运动”仅仅在选举中才又活跃起来。这两个组织没有哪一个重要到足以产生新的政治领袖,仍然缺少人为地产生政治领袖的力量。如果这些党是一成不变的,而政治领袖又是来自于这些党,他们与专家治国论者的关系就会得到解决。在目前形式下,为保证政权本身有秩序和有效的继承性,大党出现了,或者相反成立了小党,这样,专家治国论者现实作用的大小就不仅来自于政权的权威性,而? | R.S.米尔恩 胡长志 张惠珍 | 1984 | 东南亚研究1984，，4： | 3 |
| 12 | 比较胺碘酮加β受体阻断剂、单用索他洛尔与单用β受体阻断剂预防埋藏式复律除颤器电击的随机试验:OPTIC研究显示文摘Context: Implantable cardioverter defibrillator(ICD) therapy is effective but is associated with high-voltage shocks that are painful. Objective: To determine whether amiodarone plus β -blocker or sotalol are better than β -blocker alone for prevention of ICD shocks. Design, Setting, and Patients: A randomized controlled trial with blinded adjudication of events of 412 patients from 39 outpatient ICD clinical centers located in Canada, Germany, United States, England, Sweden, and Austria, conducted from January 13, 2001, to September 28, 2004. Patients were eligible if they had received an ICD within 21 days for inducible or spontaneously occurring ventricular tachycardia or fibrillation. Intervention: Patients were randomized to treatment for 1 year with amiodarone plus β -blocker, sotalol alone, or β -blocker alone. Main Outcome Measure: Primary outcome was ICD shock for any reason. Results: Shocks occurred in 41 patients(38.5% ) assigned to β -blocker alone, 26(24.3% ) assigned to sotalol, and 12(10.3% ) assigned to amiodarone plus β -blocker. A reduction in the risk of shock was observed with use of either amiodarone plus β -blocker or sotalol vs β -blocker alone(hazard ratio[HR], 0.44; 95% confidence interval[CI], 0.28- 0.68; P< .001). Amiodarone plus β -blocker significantly reduced the risk of shock compared with β -blocker alone(HR, 0.27; 95% CI, 0.14- 0.52; P< .001) and sotalol(HR, 0.43; 95% CI, 0.22- 0.85; P=.02). There was a trend for sotalol to reduce shocks compared with β -blocker alone(HR, 0.61; 95% CI, 0.37- 1.01; P=.055). The rates of study drug discontinuation at 1 year were 18.2% for amiodarone, 23.5% for sotalol, and 5.3% for β -blocker alone. Adverse pulmonary and thyroid events and symptomatic bradycardia were more common among patients randomized to amiodarone. Conclusions: Despite use of advanced ICD technology and treatment with a β -blocker, shocks occur commonly in the first year after ICD implant. Amiodarone plus β -blocker is effective for preventing these shocks and is more effective than sotalol but has an increased risk of drug-related adverse effects. Clinical Trials Registration: ClinicalTrials.gov Identifier: NCT00257959. | Connolly S.J Dorian P Roberts R.S. 黄浙勇 | 2006 | 世界核心医学期刊文摘(心脏病学分册)2006，2，5： | 3 |
| 13 | Observations of brittle failure around a circular test tunnel显示文摘 | C.D. Martini R.S. Read J.B. Martino | 1997 | International Journal of Rock Mechanics and Mining Sciences1997，，7： | 3 |
| 14 | Seasonal Inhomogeneity of Soot Particles over the Central Indo-Gangetic Plains,India:Influence of Meteorology显示文摘Black carbon(BC) particles play a unique and important role in earth's climate system.BC was measured(in-situ) in the central part of the Indo-Gangetic Plains(IGP) at Varanasi,which is a highly populated and polluted region due to its topography and extensive emission sources.The annual mean BC mass concentration was 8.92 ± 7.0 μg m^(-3),with 34%of samples exceeding the average value.Seasonally,BC was highest during the post-monsoon and winter periods(approximately 18 μg m^(-3)) and lower in the premonsoon/monsoon seasons(approximately 6 μg m^(-3)).The highest frequency(approximately 46%) observed for BC mass was in the interval from 5 to 10 μg m^(-3).However,during the post-monsoon season,the most common values(approximately 23%) were between 20 and 25 μg m^(-3).The nighttime concentrations of BC were approximately twice as much as the daytime values because of lower boundary layer heights at nighttime.The Angstrom exponent was significantly positively correlated(0.55) with ground-level BC concentrations,indicating the impact of BC on the columnar aerosol properties.The estimated mean absorption Angstrom exponent was 1.02 ± 0.08 μg m^(-3),indicating that the major source of BC was from fossil fuel combustion.Significant negative correlations between BC mass and meteorological parameters indicate a pronounced effect of atmospheric dynamics on the BC mass in this region.The highest mean BC mass concentration(18.1 ± 6.9 μg m^(-3)) as a function of wind speed was under calm wind conditions(38%of the time). | SINGH B.P. TIWARI S. HOPKE Philip K. SINGH R.S. BISHT D.S. SRIVASTAVA A.K. SINGH R.K. DUMKA U.C. SINGH A.K. RAI B.N. SRIVASTAVA Manoj K. | 2015 | Journal of Meteorological Research2015，29，6： | 3 |
| 15 | Design and analysis of stiffened composite panels including post-buckling and collapse显示文摘 | R. Degenhardt A. Kling K. Rohwer A.C. Orifici R.S. Thomson | 2007 | Computers and Structures2007，，9： | 3 |
| 16 | 贵金属精炼厂废水的生物处理显示文摘铂族金属精炼过程中会产出大量的污染着有机溶剂的,并含有着很少量重金属的废水。对这些废水进行处理以使化学需氧量和金属含量降低到使它们能再用于精炼过程中,这样就能有助于缓和世界各地的干旱和半干旱采矿区域对干净水的需求。以往人们喜欢采用几种传统的物理化学工艺方法处理铂族金属精炼过程中产出的废水,而现在生物处理正在成为更加普及的方案。本评述调查了对处理铂族金属精炼生产废水的需要情况,以及各种能用于处理有机溶剂和重金属的物理化学工艺方法。本文还介绍了各种已被证明能除去99%有机溶剂的活化污泥处理工艺。而生物吸附法已被证实在除去重金属方面是非常有效的。将生物处理与生物吸附结合使用,就能成为处理复杂的和毒性很大的废水的一种可行的工艺。经处理后的废水,又可再用于精炼过程,并因此而达到大大降低生产费用,而且已经证明这样做在环保上也是极为有利的。 | R.S.多布森 张兴仁 李孜 | 2008 | 国外金属矿选矿2008，45，5： | 3 |
| 17 | 推进式食管-胃-十二指肠镜的病灶检出率依赖于隐匿性胃肠道出血的类型 | Lara L.F. Bloomfeld R.S. Pineau B.C. 尹勇 | 2005 | 世界核心医学期刊文摘(胃肠病学分册)2005，0，11： | 3 |
| 18 | Effects of essential oils on Aedes aegypti larvae: Alternatives to environmentally safe insecticides显示文摘 | W.J. Silva G.A.A. Dória R.T. Maia R.S. Nunes G.A. Carvalho A.F. Blank P.B. Alves R.M. Mar?al S.C.H. Cavalcanti | 2007 | Bioresource Technology2007，，8： | 2 |
| 19 | Structure–property correlations in Al 7050 and Al 7055 high-strength aluminum alloys显示文摘 | M. Dixit R.S. Mishra K.K. Sankaran | 2007 | Materials Science & Engineering A2007，，1： | 2 |
| 20 | 神经外科夹闭和血管内弹簧圈栓塞治疗2143例颅内动脉瘤破裂患者的国际蛛网膜下腔动脉瘤试验(ISAT):一项对生存情况、依赖性、癫痫发作、再出血、亚组和动脉瘤阻塞影响的随机对比试验 | Molyneux A.J. Kerr R.S. 郭俊 | 2006 | 世界核心医学期刊文摘(神经病学分册)2006，0，3： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员