排序方式: 共有227条查询结果,搜索用时 397 毫秒
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对Oracle 9i在RedHatAdvanced Server Linux上的安装过程进行了总结,着重介绍了Oracle 9i安装时对RedHat Advanced Server的要求和解决办法. 相似文献
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笔者论述了我国加入WTO后对公路工程造价管理的影响及公路工程造价管理的发展趋势. 相似文献
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目的研究白介素-1α(interleukin-1α,IL-1α)和基质金属蛋白酶-9(matrix metalloproteinase-9,MMP-9)的表达,探讨二者与胆脂瘤侵袭破坏能力的关系。方法采用免疫组织化学SP法检测了IL-1α、MMP-9在21例后天继发性胆脂瘤上皮与10例胆脂瘤患者外耳道皮肤表皮中的表达。结果IL-1α和MMP-9在胆脂瘤上皮的阳性表达率明显高于外耳道皮肤表皮,差异具显著性(P<0.01,P<0.01);胆脂瘤上皮IL-1α、MMP-9表达均与胆脂瘤的侵袭破坏程度正相关(P<0.05,P<0.05);胆脂瘤上皮中IL-1α、MMP-9表达存在正相关性。结论IL-1α、MMP-9是介导胆脂瘤侵袭破坏行为的重要细胞因子。在体内IL-1α可能对MMP-9表达具有上调作用。 相似文献
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Various types of floating solar photovoltaic (FPV) devices have been previously proposed, designed and constructed with applications primarily limited to onshore water bodies or near-shore regions with benign environmental conditions. This paper proposes a novel FPV concept which can survive harsh environmental conditions with extreme wave heights above 10 m. This concept uses standardised lightweight semi-submersible floats made of circular materials as individual modules. The floating modules are soft connected with ropes to form an FPV array. We first present the conceptual design of the floats and the connection systems, including hydrostatic, hydrodynamic, and structural assessments of the floats. To verify the motion response performance, we carried out 1:60 scaled model tests for a 2 by 3 array under regular and irregular wave conditions. From the time series and response spectra, the motion characteristics of the array and the mooring responses are analysed in detail. The proposed concept exhibits excellent performances in terms of modular motions with limited wave overtopping and no contact is observed between adjacent modules under the extreme wave conditions. The findings of this study can serve as a valuable reference to developing reliable and cost-effective FPV technologies for offshore conditions. 相似文献
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