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| 1 | 双能CT碘覆盖技术对肾肿块囊实性的鉴别:模型的可行性研究显示文摘本研究的目的是评估双能CT(DECT)区分肾病变模型为囊肿抑或强化肾肿块的能力。将直径为0.5~3.0cm的6个圆筒内注人蒸馏水或滴人碘对比剂溶液,在120kV时其CT值为0HU代表囊肿,10、20、40HU代表增强的肿块。这些圆筒被放在一个直径为12cm肾脏模型里,内含牛肉酱和碘对比剂以模拟CT值为100HU和250HU的强化肾实质。将其浸泡在直径28cm的水浴箱中。这些组合产生48个大小不同、内部和实质强化不同的肾病变模型(12个囊肿和36个强化肿块)。 | C.L. Brown R.P. Hartmau O.P. Dzyubak N. Takahashi A. Kawashima C.H. McCollough 刘洪杰(译) 李威(校) | 2009 | 国际医学放射学杂志2009,32,4: | 39 |
| 2 | In situ strength of coal bed based on the size effect study on the uniaxial compressive strength显示文摘In the early 1990 s, the Foundation for Science and Technology of Rio Grande do Sul State(CIENTEC)developed a pioneering study in Brazil, related to the simultaneous mining of multiple coal seams.One of the activities included detailed studies on the geomechanical characterization of materials present in the Irapua coal seam, under exploitation in the A-Sangao Mine, located near the city of Criciuma-SC,within the South-Catarinense coalfield. The goal of the laboratory tests was to define the behavior of the uniaxial compressive strength of the Irapua coal seam and establish a first approximation for the in situ strength value of this coal seam, since existing knowledge is solely based on practical mining experience over the years. Large samples of the coal seam were collected, using special techniques to maintain the integrity of the material, and a set of 56 uniaxial compression tests in cubic specimens, with side length ranging from 4.5 to 31 cm, were conducted in laboratory. This paper describes the experimental techniques used in the assays, and also presents the uniaxial compression strength results obtained.Moreover, important aspects of this type of study are considered, highlighting the size effect for the carbonaceous bed and the estimation of in situ strength values for the Irapua coal seam. | Gonzatti C. Zorzi L. Agostini I.M. Fiorentini J.A. Viero A.P. Philipp R.P. | 2014 | International Journal of Mining Science and Technology2014,24,6: | 9 |
| 3 | 管线直接铺设技术显示文摘管线直接铺设技术借助“管道推进器”(Pipe Thruster)的连续推进,单向连续地将预制管线铺设到位。如同顶管法一样,土体挖掘作业仍通过与管线相连的微型隧道掘进机来完成,开挖面通过泥浆维持,通常用膨润土泥浆。由于新方法的成功,已在几个工程中得以应用。管道推进器所产生的推力是直接铺管工程设计时考虑的一个重要M题。本文利用ABAQUS软件包里的有限元法分析了将管线推入钻孔时所需要的力及相关因素。对有限元法计算结果的分析表明这几种因素之间具有强烈的相互影响。而且,根据这些因素和管段受力分析得出了推力计算公式,并将最近几个工程中测量出的推进力与根据这些计算公式的计算值进行了对比。结果袁明,摩擦系数E和£应分别取为100Pa和0.3,推力设计值应将计算出的推力值乘以1.5倍的安全系数。这个安全系数主要是考虑到在停顿期会有2.5%的概率超过上述计算值后提出的。 | Pruiksma J. D. Pfeff D. Nugroho R.P. Boeije H.M.G. Kruse 张健 万谦 | 2013 | 非开挖技术2013,,2: | 6 |
| 4 | 解释学与自然科学:导论显示文摘 | R.P.克里斯 张小简 | 1999 | 世界哲学1999,,1: | 5 |
| 5 | 性激素结合球蛋白及游离雄激素指数与全国女性研究(SWAN)中不同种族绝经前和更年期女性的心血管危险因素相关 | Sutton-Tyrrell K. Wildman R.P. Matthews K.A. 黎一兵 | 2005 | 世界核心医学期刊文摘(心脏病学分册)2005,0,9: | 4 |
| 6 | Oxy-fuel combustion technology for coal-fired power generation显示文摘 | B.J.P. Buhre L.K. Elliott C.D. Sheng R.P. Gupta T.F. Wall | 2005 | Progress in Energy and Combustion Science2005,,4: | 3 |
| 7 | 烃类矿床的地表勘查方法显示文摘1 绪言多年前就有关于地表天然油气苗的报导,甚至在圣经中都提到在死海中有沥青漂浮(Amit and Bein,1979)。在Aramco World magzine最近的一篇文章(Bilkadi,1979)中有趣的叙述了中东地区早期地表沥青的应用,直追溯到数千年前,从最早用作粘合剂,到后来用于建筑及填充材料,以及在埃及用于制作木乃伊。虽然沥青有着广泛应用的历史,但直到最近全世界才有大量油苗的记载,并应用于找油气矿床。Degoyler(1940)宣称地表油气显示所发现的油田比其它任何找矿技术都要多。Wilson等(1974)的一篇文章研究海环境中油的渗漏,估计每年有0.2×106—6.0×10~6吨。 | R.P.菲力浦 王学求 | 1990 | 世界地质1990,9,3: | 3 |
| 8 | 热力辅助粉碎的微观研究显示文摘加热预处理可以降低能耗,提高矿物解离性,从而显著地改善了工业粉碎作业。对许多单相和多相脆性物料,采用常规和介质加热方式加热后骤冷,利用超快动力传感器研究了预处理对断裂性的影响。研究发现,加热后水冷可以显著降低断裂能量和物料的完整。 | L.M.塔瓦列斯 R.P.金 魏新超 | 1997 | 国外金属矿选矿1997,34,6: | 3 |
| 9 | An investigation of the effects of solution heat treatment on mechanical properties for AA 6xxx alloys: experimentation and modelling显示文摘 | R.P. Garrett J. Lin T.A. Dean | 2004 | International Journal of Plasticity2004,,8: | 2 |
| 10 | 左心发育不良综合征15例超声心动图研究显示文摘目的 探讨左心发育不良综合征超声心动图表现 ,以提高对超声心动图诊断该疾病的认识。方法 收集 15例超声心动图资料完整并经证实的左心发育不良综合征患者 ,对其超声心动图顺序节段性研究的结果进行分析。结果 本组左心发育不良综合征患者最常见的心血管表现为左心发育不全、二尖瓣极重度狭窄或无孔二尖瓣、主动脉瓣极重度狭窄或无孔主动脉瓣、主动脉发育不良及依赖于右心室及动脉导管的系统循环。多数患者肺静脉回流经房间隔分流至右房室 ,少数患者左房血流经替代途径回流入右房室 ,分别为心上型肺静脉异位引流、左旋心房主静脉及部分冠状静脉窦无顶 ,其中 1例同时合并三房心及左旋心房主静脉的病例为罕见病例。结论 超声心动图可揭示左心发育不良综合征所有显著的病理解剖及病理生理特征 ,可指导外科手术 ,特别是 Norwood手术的治疗。 | 孙旭东 陈良龙 M.T.R. Roofhooft R.P. Beekman | 2004 | 福建医药杂志2004,26,3: | 2 |
| 11 | Dynamic modelling of induced seismicity显示文摘 | J.F. Hazzard R.P. Young | 2004 | International Journal of Rock Mechanics and Mining Sciences2004,,8: | 2 |
| 12 | Antioxidant activity of grape seed ( Vitis vinifera ) extracts on peroxidation models in vitro显示文摘 | G.K. Jayaprakasha R.P. Singh K.K. Sakariah | 2001 | Food Chemistry2001,,3: | 2 |
| 13 | Variation in root system architecture and drought response in rice ( Oryza sativa ): Phenotyping of the OryzaSNP panel in rainfed lowland fields显示文摘 | Amelia Henry Veeresh R.P. Gowda Rolando O. Torres Kenneth L. McNally Rachid Serraj | 2010 | Field Crops Research2010,,2: | 2 |
| 14 | Treatment of liver metastases, an update on the possibilities and results显示文摘 | T. Ruers R.P. Bleichrodt | 2002 | European Journal of Cancer2002,,7: | 2 |
| 15 | Ground movement induced by parallel EPB tunnels in silty soils显示文摘 | R.P. Chen J. Zhu W. Liu X.W. Tang | 2010 | Tunnelling and Underground Space Technology incorporating Trenchless Technology Research2010,,1: | 2 |
| 16 | Effects of heat stress and plane of nutrition on lactating Holstein cows: I. Production, metabolism, and aspects of circulating somatotropin 1显示文摘 | M.L. Rhoads R.P. Rhoads M.J. VanBaale R.J. Collier S.R. Sanders W.J. Weber B.A. Crooker L.H. Baumgard | 2009 | Journal of Dairy Science2009,,5: | 2 |
| 17 | Outcomes of colorectal cancer patients with peritoneal carcinomatosis treated with chemotherapy with and without targeted therapy显示文摘 | Y.L.B. Klaver L.H.J. Simkens V.E.P.P. Lemmens M. Koopman S. Teerenstra R.P. Bleichrodt I.H.J.T. de Hingh C.J.A. Punt | 2012 | European Journal of Surgical Oncology2012,,7: | 2 |
| 18 | 热应激对猪生产和代谢的影响显示文摘文章综述了热应激对猪的生产和代谢的影响,以及热应激对猪肠道健康的影响。并从饲养管理和营养措施两方面阐述了应对热应激的措施。其中营养措施包括:锌、乳制品、谷氨酰胺、抗氧化剂、地塞米松、甜菜碱的使用。 | M.V. Sanz-Fernandez S.K. Stoakes J.S. Johnson M. Abuajamieh J.T. Seibert S.C. Pearce N.K. Gabler R.P. Rhoads L.H. Baumgard | 2014 | 饲料工业2014,35,10: | 2 |
| 19 | 地理研究的科学方法显示文摘 | R.P.莫斯 李德美 | 1984 | 地理译报1984,,01: | 2 |
| 20 | Indwelling Ureteral Stents: Evaluation of Symptoms, Quality of Life and Utility显示文摘 | H.B. JOSHI A. STAINTHORPE R.P. MacDONAGH F.X. KEELEY A.G. TIMONEY | 2003 | The Journal of Urology2003,,3: | 2 |