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22篇 您的检索式:作者名="HAAS Christian"
    题名 作者 年代 出处 被引量
1南极威德尔海冬季冰脊形拖曳力显示文摘利用2006年南极威德尔海冬季科学考察期间由机载激光高度计测得的海冰上表面形态数据,以拖曳分割理论为基础研究了冰脊形拖曳力及其对冰-气总拖曳力的贡献以及中性条件下对应10 m高度处风速的冰-气拖曳系数Cdn(10)。结果显示,在密集冰区,冰脊形拖曳力及其对总拖曳力的贡献随冰脊强度(脊高/脊距)的增大呈递增趋势,而随粗糙长度的增大而减小,对应于威德尔海冬季典型冰脊强度和粗糙长度,占总拖曳力的35%,说明了冰脊形拖曳力在冰-气界面动量交换中的重要作用。Cdn(10)随冰脊强度的增大而增大,但冰脊强度较小时,Cdn(10)随粗糙长度增大而增大;而对较大的冰脊强度,Cdn(10)则随粗糙长度增大而减小。谭冰 卢鹏 李志军 HAAS Christian NICOLAUS Marcel 2012水科学进展2012,23,6:5
2Analysis on the crystals of sea ice cores derived from Weddell Sea,Antarctica显示文摘In order to understand the sea ice types and its region of origin frozen in Weddell Sea,27 ice cores were taken from Weddell Sea,Antarctica during September and October,2006.Their crystals were analyzed,and their ice forming processes were evaluated based on the crystals.Photos of the thin sections from two whole ice cores,and from polygonal granular superimposed ice were taken as well as corresponding stratigraphy descriptions.Vertical profiles of salinity, density and grain size were also obtained.Based on ice core structural texture,the findings include that: 1) although large and smooth ice floes were selected as the investigation sites, the ice sheet at the sampling position may be formed by rafted ice,consolidated ice ridges and second-year ice which were affected by dynamic and thermodynamic processes together subsequently.Ice formed in pure thermal growth comprises minority.The polygonal granular superimposed ice from refrozen wetted dense snow is one type of the ice in Antarctica.2) Of the all 27 ice cores,the granular,mixed granular-columnar and columnar crystals in sea ice occupy 28.7%,14.4% and 55.2%,respectively.3) The pure thermal growth ice is predominant in marginal sea ice zone;the rafted ice and consolidated ice ridges,even second-year ice and polygonal granular superimposed ice from dynamic and thermal effects were found in front of Larsen A Ice Shelf;the thermal growth ice froze in the polynyas of Larsen A,and was transferred outwards.李志军 Nicolaus Marcel Toyota Takenobu Haas Christian 2010Chinese Journal of Polar Science2010,21,1:4
3Prognostic value of CA 19-9, CEA, CRP, LDH and bilirubin levels in locally advanced and metastatic pancreatic cancer: results from a multicenter, pooled analysis of patients receiving palliative chemotherapy显示文摘Michael Haas Volker Heinemann Frank Kullmann Rüdiger P. Laubender Christina Klose Christiane J. Bruns Stefan Holdenrieder Dominik P. Modest Christoph Schulz Stefan Boeck 2013Journal of Cancer Research and Clinical Oncology2013,,4:4
4Injury patterns of seniors in traffic accidents: A technical and medical analysis显示文摘AIM:To investigate the actual injury situation of seniors in traffic accidents and to evaluate the different injury patterns.METHODS:Injury data,environmental circumstances and crash circumstances of accidents were collected shortly after the accident event at the scene.With these data,a technical and medical analysis was performed,including Injury Severity Score,Abbreviated Injury Scale and Maximum Abbreviated Injury Scale.The method of data collection is named the German InDepth Accident Study and can be seen as representative.RESULTS:A total of 4430 injured seniors in traffic accidents were evaluated.The incidence of sustaining severe injuries to extremities,head and maxillofacial region was significantly higher in the group of elderly people compared to a younger age(P<0.05).The number of accident-related injuries was higher in the group of seniors compared to other groups.CONCLUSION:Seniors are more likely to be involved in traffic injuries and to sustain serious to severe injuries compared to other groups.Stephan Brand Dietmar Otte Christian Walter Mueller Maximilian Petri Philipp Haas Timo Stuebig Christian Krettek Carl Haasper 2012World Journal of Orthopedics2012,3,9:2
5南极威德尔海海冰晶体类型分析显示文摘为了解南极威德尔海不同区域海冰形成过程,分析了2006年9—10月威德尔海海冰调查中的27支冰芯晶体并描述了冰芯反映的冰层形成过程;给出2支完整冰芯晶体照片和多边形晶体雪冰照片,以及对应照片的冰层描述和冰盐度、密度、粒径。根据冰芯晶体揭示的海冰形成过程,发现尽管现场考察均选择较大表面平整的浮冰作业,但冰芯晶体揭示出实际冰层可以是受动力和热力联合作用形成的重叠冰、固结冰脊、二年冰;而从表面到底面属于纯热力学生长形成的冰层所占比例较小。积雪经过密实和水分参与,再冻结形成多边形晶体雪冰也是南极海冰主要组成之一。粒状晶体、过渡区混合晶体和柱状晶体海冰分别占27支冰芯总长度的28.7%、14.4%和55.2%。海冰的区域分布表现出海冰边缘区以纯热力学生长的一年冰为主;在冰架前缘,受动力作用形成的重叠冰和固结冰脊的比例增加,并且存在二年冰和多边形晶体雪冰;冰间湖内生长有大面积纯热力学生长的海冰并向外输送。李志军 Nicolaus Marcel Toyota Takenobu Haas Christian 2009极地研究2009,21,3:2
6Upper limits for chlorophyll a changes with brine volume in sea ice during the austral spring in the Weddell Sea,Antarctica显示文摘During the winter and spring of 2006, we investigated the sea ice physics and marine biology in the northwest Weddell Sea, Antarctica aboard R/V Polarstern. We determined the texture of each ice core and 71 ice crystal thin sections from 27 ice cores. We analyzed 393 ice cores, their temperatures, 348 block density and salinity samples,and 311 chlorophyll a(Chl a) and phaeophytin samples along the cruise route during the investigation. Based on the vertical distributions of 302 groups of data for the ice porosity and Chl a content in the ice at the same position, we obtained new evidence that ice physical parameters influence the Chl a content in ice. We collected snow and ice thickness data, and established the effects of the snow and ice thickness on the Chl a blooms under the ice, as well as the relationships between the activity of ice algae cells and the brine volume in ice according to the principle of environmental control of the ecological balance. We determined the upper limits for Chl a in the brine volume of granular and columnar ice in the Antarctica, thereby demonstrating the effects of ice crystals on brine drainage, and the contributions of the physical properties of sea ice to Chl a blooms near the ice bottom and on the ice-water interface in the austral spring. Moreover, we found that the physical properties of sea ice affect ice algae and they are key control elements that modulate marine phytoplankton blooms in the ice-covered waters around Antarctica.LI Zhijun LI Runling WANG Zipan HAAS Christian DIECKMANN Gerhard 2016Acta Oceanologica Sinica2016,35,2:2
7Overexpression of c-myc in hepatocytes promotes activation of hepatic stellate cells and facilitates the onset of liver fibrosis显示文摘Yulia A. Nevzorova Wei Hu Francisco J. Cubero Ute Haas Julia Freimuth Frank Tacke Christian Trautwein Christian Liedtke 2013BBA - Molecular Basis of Disease2013,,10:2
8Inhibition of angiogenesis by interleukin-4 gene therapy in rat adjuvant-induced arthritis 显示文摘CHRISTIAN S HAAS M ASIF AMIN BRITTANY B ALLEN 2006Arthritis Rheum2006,54,8:1
9Arthroscopically assisted stabilization of acute high-grade acromioclavicular joint separations in a coracoclavicular Double-TightRope technique: V-shaped versus parallel drill hole orientation显示文摘Natascha Kraus Norbert P. Haas Markus Scheibel Christian Gerhardt 2013Archives of Orthopaedic and Trauma Surgery2013,,10:1
10HCV/HIV co-infection, HCV viral load and mode of delivery: risk factors for mother-to-child transmission of hepatitis C virus?显示文摘Eugènia Mariné-Barjoan Alain Berrébi Valérie Giordanengo Sébastien Fournier Favre Hervé Haas Michel Moreigne Jacques Izopet Joelle Tricoire Albert Tran Christian Pradier André Bongain 2007AIDS2007,,13:1
11南极春季海冰物理对叶绿素控制作用的统计分析显示文摘利用2006年南极威德尔海西北海域冬末春初的冰芯晶体结构,和302组冰芯温度、盐度、密度、叶绿素-a、脱镁叶绿素数据,以及冰底面叶绿素a垂直分布数据,进一步确定积雪/海冰厚度、冰内温度、盐度、密度对冰内和冰下叶绿素a的贡献.利用环境制约与生态平衡原理,阐明积雪/海冰厚度通过阻碍光通量对冰底叶绿素的效应,以及卤水体积通过冰温度和盐度体现对冰藻细胞活性的抑制作用.统计分析不仅确立了南极海冰冰内卤水体积-内叶绿素a的逻辑斯蒂上限含量曲线,并体现出粒状冰同柱状冰卤水排泄方式的差异及其对冰底春季叶绿素a快速增长的冰物理贡献.冰藻细胞活性指标小于0.5的仅占4.3%,该数据为南极冰藻是维持南极冰区浮游植物旺发的主导因子提供了重要依据.李志军 李润玲 王自磐 Christian Haas Gehard Dieckmann 2015中国环境科学2015,35,9:1
12HCV/HIV co-infection, HCV viral load and mode of delivery: risk factors for mother-to-child transmission of hepatitis C virus?显示文摘Eugènia Mariné-Barjoan Alain Berrébi Valérie Giordanengo Sébastien Fournier Favre Hervé Haas Michel Moreigne Jacques Izopet Joelle Tricoire Albert Tran Christian Pradier André Bongain 2007AIDS2007,,13:1
13Surgery for Metastasis to the Pancreas: Is it Safe and Effective?显示文摘Hanno Niess Claudius Conrad Axel Kleespies Florian Haas Qi Bao Karl‐Walter Jauch Christian Graeb Christiane J. Bruns 2013J Surg Oncol2013,,8:1
14Visceral Adipose Tissue in Patients with Crohn?s Disease Correlates with Disease Activity, Inflammatory Markers, and Outcome显示文摘Carsten Büning Christian von Kraft Mario Hermsdorf Enno Gentz Eva K. Wirth Luzia Valentini Verena Haas 2015Inflammatory Bowel Diseases2015,,11:1
15Potentials and prospects for renewable energies at global scale显示文摘Gustav Resch Anne Held Thomas Faber Christian Panzer Felipe Toro Reinhard Haas 2008Energy Policy2008,,36:1
16Evaluation of ship-based electromagnetic-inductive thickness measurements of summer sea-ice in the Bellingshausen and Amundsen Seas, Antarctica显示文摘Christian Haas 1998Cold Regions Science and Technology1998,,1:1
17The anti-fibrotic effects of CCN1/CYR61 in primary portal myofibroblasts are mediated through induction of reactive oxygen species resulting in cellular senescence, apoptosis and attenuated TGF-β signaling显示文摘Erawan Borkham-Kamphorst Christian Schaffrath Eddy Van de Leur Ute Haas Lidia Tihaa Steffen K. Meurer Yulia A. Nevzorova Christian Liedtke Ralf Weiskirchen 2014BBA - Molecular Cell Research2014,,:1
18HCV/HIV co-infection, HCV viral load and mode of delivery: risk factors for mother-to-child transmission of hepatitis C virus?显示文摘Eugènia Mariné-Barjoan Alain Berrébi Valérie Giordanengo Sébastien Fournier Favre Hervé Haas Michel Moreigne Jacques Izopet Joelle Tricoire Albert Tran Christian Pradier André Bongain 2007AIDS2007,,13:1
19Use of the Less Invasive Stabilization System (LISS) in patients with distal femoral (AO33) fractures: a prospective multicenter study显示文摘Michael Schütz Mathias Müller Pietro Regazzoni Dankward H?ntzsch Christian Krettek Christian Werken Norbert Haas 2005Archives of Orthopaedic and Trauma Surgery2005,,2:1
20Use of the Less Invasive Stabilization System (LISS) in patients with distal femoral (AO33) fractures: a prospective multicenter study显示文摘Michael Schütz Mathias Müller Pietro Regazzoni Dankward H?ntzsch Christian Krettek Christian Werken Norbert Haas 2005Archives of Orthopaedic and Trauma Surgery2005,,2:1
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