The light propagation characteristics through the annular coupled-resonator cavity waveguides are systematically analyze......

尉迟寺大汶口文化晚期设壕遗址是已知保存较为完整的新石器时代遗址,学界一般将其定性为小范围的中心聚落或村落。可是尉迟寺设壕......

对码头夹角处的装卸船设备在运行和操作过程中可能出现的碰撞情况及采取的防护设计进行分析和探讨,为同类项目的设计和使用提供参......

In the 1980s China had numerous restrictions on the utilization of foreign capital by the tertiary industry. Some areas,......