螺旋藻直线形变异藻株(Sp-Dz)研究初报

从长期应用于研究与生产中的优良钝顶螺旋藻 (Spirulinaplatensis)藻株 (Sp -D)中分离出一株直线形变异藻株 (Sp -Dz) ,对其生长特性及主要生化组分进行了初步研究。实验结果表明 ,这一直线形变异藻株具有生长快、上浮性好、藻胆蛋白含量高等优点 。

掘进巷道污染质运移扩散特征及其控制技术

应用数学模型（ Ⅰ） 、（ Ⅱ） ，分析了掘进巷道环境污染质的运移扩散特征。结合瓦斯物理性质，论证了瓦斯的扩散性和聚集赋存性，给出了瓦斯的两个固有属性的定义；提出了应用流体压力能可调节原理建立控制环境污染质聚集超限的动态掘进通风系统。

箱涵明开顶进上穿既有结构施工方法的研究与应用

北京城市副中心行政办公区潞城西路综合管廊施工前,分析箱涵明开顶进上穿既有结构施工工艺,与明挖分节逐段施工法、浅埋暗挖法、传统箱涵顶进施工法进行施工特点、工期及经济效益进行对比,证明箱涵明开顶进上穿既有结构施工方法的顶进精度高、控制既有结构变形值效果显著、顶进速度明显快于传统顶进工法,使地铁区间道床上浮值得到有效控制,保证了运营地铁安全.

Motion Characteristics of Novel Floating Foundation for Offshore Wind Turbine

A novel floating foundation to support the NREL offshore 5 MW wind turbine was designed conceptually by combining the characteristics of barge and Spar. The main focus was structural design and hydrodynamic modelling. Based on this novel floating foundation, the hydrodynamic performance was investigated in the frequency domain and time domain by using the wave analysis software Hydro D and Deep C from Det Norske Veritas. The frequency domain analysis was conducted to investigate the effects of the incident wave angle and water depth. The time-domain analysis was carried out to evaluate the response of the floating foundation under a selected operational condition. The hydrodynamic performances of this floating foundation with respect to time series and response spectra were also investigated in this study.