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| 1 | 中国黄土粒度的双峰分布及其古气候意义显示文摘中国黄土的粒度分布由分布峰度较高、分选较好的粗粒组分和分布峰度较低、分选较差的细粒组分叠加组成 ;前者代表了冬季风盛行季节近距离低空搬运的粉尘物质 ,其粒度指示了东亚冬季风所主导的近地面气流的强度 ,它在全样中的含量可能反映了冬季风粉尘的沉积通量 ;细粒组分可能主要为常态存在的、由高空气流搬运的远源粉尘 ,代表了黄土高原原始粉尘的本底 ,它的粒度特征与北太平洋西风带粉尘基本一致 ,可能指示了主要由西风带控制的高空气流的强度。黄土的粒度分布函数可用代表这两个组分分布的两个WEIBULL函数的和函数表示。用实测粒度分布数据对分布函数进行拟合可计算出该分布函数的各参数 。 | 孙东怀 鹿化煜 David Rea 孙有斌 吴胜光 | 2000 | 沉积学报2000,18,3: | 224 |
| 2 | 古环境中沉积物粒度组分分离的数学方法及其应用显示文摘陆相沉积物一般由多个粒度组分叠加组成,根据粒度分布曲线的特征可确定组分数、分布类型以及设定粒度分布函数,用设定的分布函数对实测粒度数据拟合可计算出函数的各参数,并获得各组分的百分比和分布函数,从而从数字特征上分离各组分。对流水和风成沉积物研究表明,河流沉积物由细粉砂级悬移组分和中砂至细砂级跃移组分叠加组成;封闭湖的碎屑沉积物主要是降水形成的地表径流搬运的细粉砂级悬移组分;风成砂由高度分选的近源跃移砂组分与细粒大气背景粉尘叠加组成;黄土由低空近源的悬移粉砂组分与高空运源悬移细粒组分叠加组成;北太平洋粉尘只有高空西风搬运的悬移细粒组分,该组分的粒度在中国沙漠、黄土高原和北太平洋的风成物中表现出一致性和成因上的内在联系,是该系统中高空悬移并分散于大气中的背景粉尘。 | 孙东怀 安芷生 苏瑞侠 吴锡浩 王苏民 孙千里 David Rea Jan Bloemendal | 2001 | 自然科学进展(国家重点实验室通讯)2001,11,3: | 119 |
| 3 | 黄土高原现代天然降尘的组成、通量和磁化率显示文摘黄土高原现代天然降尘的季节性变化研究表明 ,矿物粉尘是天然粉尘的主要组成成分 ,有机质和污染物以夏季粉尘中含量最高。粉尘的磁化率在 80~ 1 50单位之间 ,明显高于冰期黄土 ,指示着间冰期时原始粉尘的磁化率就已受到气候条件的影响。粉尘沉积通量的季节性变化在高原北部较大 ,中部和南部变化较小 ,年累积通量也是北部明显高于基本相当的其它地区。分析粉尘沉积的气候过程认为 ,黄土高原的天然降尘主要表现为常态存在的非尘暴降尘 ,大部分为近距离低空再搬运粉尘 ,其沉积通量与地表的干燥度密切相关 ,部分来自内陆远源沙漠 ,通过高空西风气流转输。冬季风粉尘在大部分黄土高原略高于其它季节粉尘 ,而在西北部显著增高。 | 孙东怀 苏瑞侠 陈发虎 袁宝印 David Rea | 2001 | 地理学报2001,56,2: | 31 |
| 4 | Efficacy of rituximab in gastric diffuse large B cell lymphoma patients显示文摘AIM:To evaluate retrospectively the efficacy of rituximab plus chemotherapy in gastric diffuse large B cell lymphoma(DLBCL).METHODS:Sixty patients(median age:58 years)with histologically confirmed gastric DLBCL treated at four Italian institutions between 2000 and 2007,were included in this analysis.Patients were selected by stage (Ⅰ-Ⅳ,Lugano staging system),European Cooperative Oncology Group performance status(0-2)and treatment strategies.Treatment strategies were chemotherapy alone(group A,n=30)[scheduled as cyclophosphamide,doxorubicin,vincristine and prednisone (CHOP)and CHOP-like],and chemotherapy combined with rituximab(group B,n=30).The primary end point of the study was complete response(CR)rate;the secondary end points were disease-free survival (DFS)at 5 years and overall survival(OS).RESULTS:Median follow-up was 62 mo(range:31102 mo).We observed a significant difference between the two groups(A vs B)in terms of CR[76.6%(23/30) vs 100%,P=0.04)and DFS at 5 years[73.3%(22/30) vs 100%,P=0.03).To date,19 group A(63.3%) patients are alive and 11 have died,while all group B patients are alive.No significant differences in toxicity were observed between the two groups.CONCLUSION:Rituximab in combination with chemotherapy improves CR rate,DFS and OS.Further prospective trials are needed to confirm our results. | Davide Leopardo Giuseppe Di Lorenzo Amalia De Renzo Piera Federico Serena Luponio Carlo Buonerba Elide Matano Gerardina Merola Martina Imbimbo Enzo Montesarchio Antonio Rea Maria Carmela Merola Sabino De Placido Giovannella Palmieri | 2010 | World Journal of Gastroenterology2010,16,20: | 19 |
| 5 | A High-Throughput Phenotyping System Using Machine Vision to Quantify Severity of Grapevine Powdery Mildew显示文摘Powdery mildews present specific challenges to phenotyping systems that are based on imaging.Having previously developed lowthroughput,quantitative microscopy approaches for phenotyping resistance to Erysiphe necator on thousands of grape leaf disk samples for genetic analysis,here we developed automated imaging and analysis methods for E.necator severity on leaf disks.By pairing a 46-megapixel CMOS sensor camera,a long-working distance lens providing 3.5×magnification,X-Y sample positioning,and Z-axis focusing movement,the system captured 78%of the area of a 1-cm diameter leaf disk in 3 to 10 focus-stacked images within 13.5 to 26 seconds.Each image pixel represented 1.44 m2 of the leaf disk.A convolutional neural network(CNN)based on GoogLeNet determined the presence or absence of E.necator hyphae in approximately 800 subimages per leaf disk as an assessment of severity,with a training validation accuracy of 94.3%.For an independent image set the CNN was in agreement with human experts for 89.3%to 91.7%of subimages.This live-imaging approach was nondestructive,and a repeated measures time course of infection showed differentiation among susceptible,moderate,and resistant samples.Processing over one thousand samples per day with good accuracy,the system can assess host resistance,chemical or biological efficacy,or other phenotypic responses of grapevine to E.necator.In addition,new CNNs could be readily developed for phenotyping within diverse pathosystems or for diverse traits amenable to leaf disk assays. | Andrew Bierman Tim LaPlumm Lance Cadle-Davidson David Gadoury Dani Martinez Surya Sapkota Mark Rea | 2019 | Plant Phenomics2019,1,1: | 4 |
| 6 | Capsule Endoscopy in Patients with Implantable Electromedical Devices is Safe显示文摘 | Lucinda A. Harris Stephanie L. Hansel Elizabeth Rajan Komandoor Srivathsan Robert Rea Michael D. Crowell David E. Fleischer Shabana F. Pasha Suryakanth R. Gurudu Russell I. Heigh Arthur D. Shiff Janice K. Post Jonathan A. Leighton Hsu Heng Yen | 2013 | Gastroenterology Research and Practice2013,,: | 2 |
| 7 | Liver Transplantation with Neoadjuvant Chemoradiation is More Effective than Resection for Hilar Cholangiocarcinoma显示文摘 | David J. Rea Julie K. Heimbach Charles B. Rosen Michael G. Haddock Steven R. Alberts Walter K. Kremers Gregory J. Gores David M. Nagorney | 2005 | Annals of Surgery2005,,3: | 1 |
| 8 | Warfarin thromboprophylaxis in cancer patients with central venous catheters (WARP): an open-label randomised trial显示文摘 | Annie M Young Lucinda J Billingham Gulnaz Begum David J Kerr Ana I Hughes Daniel W Rea Stephen Shepherd Andrew Stanley Ann Sweeney Jonathan Wilde Keith Wheatley | 2009 | The Lancet . 2009 (9663)2009,,: | 1 |
| 9 | Geologic evolution of Hess Rise, central North Pacific Ocean显示文摘 | Tracy L Vallier Walter E Dean David K Rea | 2009 | Geological Society of America Bulletin2009,94,: | 1 |
| 10 | Late Cenozoic eolian deposition in the North Pacific: Asian drying, Tibetan uplift, and cooling of the Northern Hemisphere显示文摘 | David K Rea Hlide Snoeckx Leah H Joseph | 1998 | Paleoceanography1998,13,3: | 1 |