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factor susceptibility
相关语句
  因子敏感性
     Analysis is made on the landslide triggering factor susceptibility in Xiaojiang watershed,Yunnan by means of landslide certainty factor (CF). The presented results are helpful to study the landslide mechanism and spatial distribution characteristics.
     进行滑坡因子敏感性分析是滑坡研究的一个重要的步骤,有利于研究滑坡的变形破坏机理及分析滑坡的空间分布规律。
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Analysis is made on the landslide triggering factor susceptibility in Xiaojiang watershed,Yunnan by means of landslide certainty factor (CF). The presented results are helpful to study the landslide mechanism and spatial distribution characteristics. The factors contributing the landslide occurrence are determined,including lithology,structure,slope,elevation and faults,etc..

进行滑坡因子敏感性分析是滑坡研究的一个重要的步骤,有利于研究滑坡的变形破坏机理及分析滑坡的空间分布规律。采用滑坡确定性系数的方法对云南小江流域进行了影响因子敏感性分析,确定了有利于滑坡发育的岩性、结构、坡度、高程、断裂等影响因子。

Determining the key triggering factors is an important step for landslide stability assessment. All factors have uncertainties, and different factors have different correlation to landslide hazard. Key triggering factor must be determined to establish correct landslide stability analysis model, especially statistical analysis model. Landslide factor susceptibility in Xiaojiang Valley is carried out by means of landslide certainty factor integration and verification. The key factors are determined...

Determining the key triggering factors is an important step for landslide stability assessment. All factors have uncertainties, and different factors have different correlation to landslide hazard. Key triggering factor must be determined to establish correct landslide stability analysis model, especially statistical analysis model. Landslide factor susceptibility in Xiaojiang Valley is carried out by means of landslide certainty factor integration and verification. The key factors are determined and a statistical model is established for landslide assessment in Xiaojiang Valley. Statistic analysis shows that the model is reliable to explain most of the landslides in Xiaojiang Valley. The result obtained from model analysis could provide the scientific information for landslide prevention, planning and control in Xiaojiang Valley.

确定诱发滑坡失稳的关键因素是滑坡研究的一个重要内容。采用不同影响因子图层进行危险性分区结果存在明显差异,这是由于每一因子对于滑坡变形失稳的贡献程度不同,即不同影响因子与滑坡的相关性不同。在进行滑坡灾害分析时,必须首先确定影响滑坡的关键因子以建立准确的统计分析模型。采用滑坡确定性系数的合并检验方法,在GIS中对云南小江流域进行了滑坡影响因子分析,并确定了影响滑坡的关键性因子。据此建立的多元统计分析预测模型经检验具有较高精度,可以为小江流域的灾害防治、规划建设提供科学依据。

Objective To study the expression of HLA-B27 locus associated antigens in patients with ankylosing spondylitis(AS).Methods Examined the HLA-B27 associated antigens of 418 patients relative spondyloarthropathies(SpAs) and 30 controls by complement dependent microcytotoxity assay.Results There were 73 patients with AS inthe SpAs.The percentage of Bw6,B27(47),B27 and B7/B27/B73/B81 were 31.1%,28.5%,25.8% and 22%,respectively.In the both HLA-B27-postive group and HLA-B27-negative group,there were significantly difference...

Objective To study the expression of HLA-B27 locus associated antigens in patients with ankylosing spondylitis(AS).Methods Examined the HLA-B27 associated antigens of 418 patients relative spondyloarthropathies(SpAs) and 30 controls by complement dependent microcytotoxity assay.Results There were 73 patients with AS inthe SpAs.The percentage of Bw6,B27(47),B27 and B7/B27/B73/B81 were 31.1%,28.5%,25.8% and 22%,respectively.In the both HLA-B27-postive group and HLA-B27-negative group,there were significantly difference among B27 alleles antigens of B27(47),B27 and B7.There were 66 patients with AS of HLA-B27-Postive group,therewas negatively correlation in both antigens B13 and Bw6,but conversely,there was positively correlation in both match antigens of Bw4 and B27(47),B7 and B27.Conclusion There were strongly linkage disequilibrium in five match antigens of B13 and Bw6,B13 and B60/61/47/48/81(13),B7 and B27,Bw4 andB27(47),Cw1 and B42/B45.B27 antigens are not the only a factor susceptibility toAS,other alleles associated antigens may be either enhance,such as Cw1 and Cw2or suppressive,on the development of AS.

目的探讨强直性脊柱炎(A S)患者HLA-B 27位点等位基因相关抗原的表达。方法采用补体依赖性微量淋巴细胞毒法检测418例脊柱关节炎(SpA S)患者和30例正常对照组HLA-B 27相关抗原。结果418例SpA S患者中73例被确诊为A S,其Bw 6、B 27(47)、B 27和B 7/B 27/B 73/B 81抗原阳性率分别为31.1%,28.5%,25.8%和22%。在A S中,B 27阳性组与B 27阴性组间有不同分布,两组B 27(47)、B 27、B 7三种等位基因有统计学意义(P<0.01)。在66例B 27阳性组中,除B 13与Bw 6成负相关外,Bw 4与B 27(47)、B 7与B 27之间等均成明显的正相关。结论在A S患者中,B 13与Bw 6,B 60/61/47/48/81(13),B 7与B 27,Bw 4与B 27(47),Cw 1与B 42/B 45表达联锁失衡,B 27并不是A S易感的唯一因素,其它基因位点可能起增强(如Cw 1及Cw 2)或抑制(如B 13)A S发生的作用。

 
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