New Evidence for The Role of The North Sea — Caspian Pattern on The Temperature and Precipitation Regimes in Continental Central Turkey

Monthly mean temperatures and monthly precipitation totals at six stations from theCappadocian sub‐region in the continental Central Anatolia region of Turkey were analysed in order to detect the response of the variability in the Cappadocian climate to the variability of the North Sea ‐ Caspian Pattern Index (NCPI). Most of this region is classified as semi‐arid according to various climate classifications. Time series of the NCPI for the period 1958–1998, enabled each month from October toApril to be classified as belonging to the negative phase NCP(?), positive phase NCP(+) or neutral conditions. Monthly temperature and precipitation series for each station were analysed separately for both phases. Temperatures during NCP(?) were found to be considerably higher than during NCP(+). These results confirm previous results regarding the role of the NCP in controlling the temperature regime in that region. No significant differences were found in precipitation totals between the two phases, but major differences were identified in their spatial structure.     

硼酸镁(铝)晶须增强镁基复合材料中界面特性对比研究

对硼酸镁(铝)晶须增强镁基复合材料的界面行为进行了对比研究。对复合材料进行了示差扫描量热分析以及对复合材料中萃取的晶须进行了X射线衍射分析,表明在硼酸镁晶须增强AZ91D镁基复合材料界面无界面反应产物的生成。通过对硼酸镁晶须增强AZ91D镁基复合材料界面的键合状况进行分析和讨论,认为界面的键合是由无反应产物的化学键合、扩散键合及物理键合所组成。另外,根据已有的关于硼酸铝晶须增强镁基和铝基复合材料界面行为的研究结果,分析得出硼酸铝晶须增强镁基复合材料在硼酸铝晶须/AZ91D镁合金界面上的反应产物只有MgO。     

Behaviour and modelling of partial‐strength beam‐to‐column composite joints for seismic applications

A refined component model is proposed to predict the inelastic monotonic response of exterior and interior beam‐to‐column joints for partial‐strength composite steel–concrete moment‐resisting frames. The joint typology is designed to exhibit ductile seismic response through plastic deformation developing simultaneously in the column web panel in shear, the bolted end‐plate connection, the column flanges in bending and the steel reinforcing bars in tension. The model can handle the large inelastic deformations consistent with high ductility moment‐resisting frames. Slip response between the concrete slab and the beams was taken into account. A fibre representation was adopted for the concrete slab to accurately capture the non‐uniform stress distribution and progressive crushing of the concrete at the interface between the concrete slab and the column flange. The model is validated against results from full‐scale subassemblages monotonic physical tests performed at the University of Pisa, Italy. A parametric study is presented to illustrate the capabilities of the model and the behaviour of the joints examined. Copyright © 2006 John Wiley & Sons, Ltd.     

静压注浆结合树根桩复合地基加固机理及其工程应用

结合具体工程实例探讨了复合地基在地基加固中的应用机理，指出对于该加固工程，可采用静压注浆及树根桩相结合形成的复合地基进行加固。工程实践表明，根据工程实际情况合理运用复合地基进行地基加固处理能取得良好的加固效果。     

Bearing capacity and settlement of concrete-cored DCM pile in soft ground

A new kind of composite pile named Concrete-cored DCM (Deep-Cement-Mixing) pile is introduced for supporting medium loads in soft clay ground. This composite pile is composed of an inner precast concrete pile and an external DCM pile socket, where the high strength concrete pile is designed to bear the load of building, and DCM pile socket acts to transfer axial force into the surrounding soils by skin frictions. In this paper we introduce its application in soft ground, and tentatively investigated its bearing capacity and settlement using static loading tests and Finite Element Method. Our study indicates that concrete-cored DCM pile acts as a friction pile and is an economical and effective method for settlement control and capacity improvement in soft clay ground. This study is also valuable for research on the mechanism of other composite piles. This revised version was published online in July 2006 with corrections to the Cover Date.     

新疆托克逊地区土壤微量元素异常成因及环境地球化学意义

通过对托克逊幅部分1：20万区域化探中土壤测量资料的整理分析，认为托克逊地区多元素综合异常是该区由盆地边缘向中心沉积物迁移分异与表生环境下元素再次分异富集的结果，其东部异常元素组合特点又反映该区深部有油气田存在的可能。多种元素异常丰度已超过地表土壤环境污染规定标准阈值，提出该区可能对农作物和人类健康造成危害的元素有F,Sr,Mo,MgO,V,Th,La,U,Ti,Mn，并固定污染区范围。     

Response Surface Designs for Scenario Management and Uncertainty Quantification in Reservoir Production

Response surface experimental designs provide a framework for evaluating sensitivities and assessing uncertainties in reservoir-production forecasts for continuous parameters (i.e. permeability, flow rate, etc.). In this paper, the method is extended in order to integrate both continuous and discrete parameters (i.e. fault status: open/close, injection scheme: SWAG/WAG, etc.). This paper presents an appropriate experimental designs approach, notably the regression models associated with, and the statistical interpretation (sensitivity study, Monte Carlo simulations, etc.). The method has been successfully applied to a reservoir oil-production simulation problem. The objective was to define the best production scheme by optimizing the well-completion level. This application has highlighted the advantages of this new approach, both in terms of decreasing simulation cost and improving the interpretation quality.     

油气化探异常评价的研究

根据油气化探异常评价的研究方法及其有关问题,指出了选择参数既要具有明确的地质、地化意义,又要符合某种数学原理及最优化准则。据此对异常与背景属性及其确定方法进行了讨论。概述了油气异常判识准则。强调了组构异常及变量之间的相关性或关联信息提取的重要性。     

组合钢支撑在隧洞塌方处理中的应用

介绍了组合钢支撑技术在石棉镇龙电站隧洞塌方中的应用情况，同时探索出了该项技术的适用条件和推广前景。     

在准两年尺度上ENS0与亚洲季风相互作用的研究

对ENSO过程中的准两年振荡进行了诊断分析，并在此基础上分析了ENSO与亚洲季风的相互作用，结果表明：在准两年尺度上亚洲季风对ENSO循环有着十分明显的影响，这种影响主要通过亚洲季风爆发南下到热带西太平洋，激发出那里的强对流，进而影响到ENSO循环，这种现象不仅仅反映在准两年模态中，在实际亚洲冬季风的年限变化中也较突出。