Reducing the cost of offshore platform construction is an urgent issue for marginal oilfield development.The offshore oil well structure includes a riser and a
The purpose of this research is to study the dynamic responses of gravity quay walls with block type consisting of“three blocks”experimentally.For this purpos
幼儿时期是培养幼儿道德意识、道德情感、传授正确道德行为的关键期,因为这个阶段的幼儿很容易接受正确的、美好的、规范的行为,这对他们养成习惯至关重要.这一时期的幼儿容
Compared with bottom-fixed wind turbines,the supporting platform of a floating offshore wind turbine has a larger range of motion,so the gyroscopic effects of t
时政材料在中考历史与社会试题中有着广泛的应用,加强时政材料在中考历史与社会复习中的应用策略研究,对提高历史与社会中考成绩具有重要作用.因此,教师要充分认识时政材料在
Offshore wind farm construction is nowadays state of the art in the wind power generation technology.However,deep water areas with huge amount of wind energy re
The cavitating flow in different regimes has the intricate flow structure with multiple time and space scales.The present work develops a multiscale model by coupling the volume of fluid(VOF)method and a discrete bubble model(DBM),to simulate the cavitati
创新是建立国家竞争优势的内在要求,也是创造中国经济奇迹的决定性力量。文章通过梳理创新生态系统相关文献,提出构建富有创新活力的创新生态系统浓度、高度、活跃度、治理度、响应度“五度”评价指标体系。结合京津冀城市群2个直辖市与11个地级市2018年相关数据,利用改进熵权TOPSIS模型和障碍度模型计算京津冀区域创新生态系统活力指数,并且识别障碍因子。研究结果表明:从整体创新活力指数看,京津冀城市群整体创新活力相对缺乏,北京创新活力处于绝对主导位置,天津副中心特征明显,石家庄表现出第三极发展趋势;从5个子维度看,
全球化促进了中西方文化的交流与发展,而音乐文化的融合,为各国文化的稳定发展起到了促进作用.但是,由于中西方之间在文化上存在着很大的差异,音乐特点也不相同,所以在融合发
A structure scheme of a pile-based breakwater with integrated oscillating water column(OWC)energy conversion chamber was proposed,and four structure forms had been designed.Based on the physical test,the variations of the reflected wave height,the transmi