建筑材料行业应用型本科人才培养模式探讨

文章论述了建筑材料行业本科人才培养现状,分析了人才培养与行业需求脱节的问题。从材料从属特定工程领域的角度,提出教学型大学材料类人才培养应该与相关工程技术与管理紧密结合的观点,介绍了一种基于土木工程背景的建筑材料应用型本科人才培养模式。     

光伏系统最大功率点跟踪控制算法的研究

介绍光伏建筑一体化(BIPV)系统及其特点,研究交流模块式BIPV系统最大功率点跟踪技术(MPPT)。针对BIPV系统中光伏组件的P-U曲线呈现多极值特性,提出多极值条件下光伏组件最大功率点跟踪控制算法。在Matlab/Simulink下进行建模与仿真,仿真结果验证了此算法的可行性。     

冻结法技术在双层越江隧道工程联络通道施工中的应用

上海复兴东路越黄浦江隧道为南北线双层式,上下层共设置4条联络通道,共中3条位于不稳定的⑦层微承压水砂性土层中,为了确保安全,采用冻结法施工。阐述了冻结帷幕工艺,以及冻结加固体内开挖、支撑、结构、充填注浆施工顺序及采取的技术措施,顺利完成了4条联络通道的施工任务。     

水工长隧洞小断面开挖爆破施工技术

本文通过福州马尾白眉水库供水工程君竹至白眉黄厝村引水隧洞开挖爆破的施工,介绍了长距离小断面水工隧洞的开挖爆破施工技术,对洞内光面爆破、排气通风等方面都有创新,值得同类工程参考借鉴。     

Low-Temperature Preparation of Superparamagnetic CoFe<Subscript>2</Subscript>O<Subscript>4</Subscript> Microspheres with High Saturation Magnetization

Based on a low-temperature route, monodispersed CoFe₂O₄ microspheres (MSs) were fabricated through aggregation of primary nanoparticles. The microstructural and magnetic characteristics of the as-prepared MSs were characterized by X-ray diffraction/photoelectron spectroscopy, scanning/transmitting electron microscopy, and vibrating sample magnetometer. The results indicate that the diameters of CoFe₂O₄ MSs with narrow size distribution can be tuned from over 200 to ~330 nm. Magnetic measurements reveal these MSs exhibit superparamagnetic behavior at room temperature with high saturation magnetization. Furthermore, the mechanism of formation of the monodispersed CoFe₂O₄ MSs was discussed on the basis of time-dependent experiments, in which hydrophilic PVP plays a crucial role.     

建筑屋面板综述

针对国内建筑屋面板生产现状,并结合有关研究成果,对建筑屋面板进行了分类,并对其性能、现状进行了综合阐述。     

工程监理与财务监理的关系刍议

从工作目标、内容、责任及人员要求等方面阐述了工程监理与财务监理二者之间的不同之处,论述了二者之间存在着平行协作的工作关系,举例介绍了工程监理和财务监理在施工过程中投资控制的一些工作流程。     

海战场电子对抗装备的技术发展

从海上作战对电子对抗作战能力的需求出发,分析了电子情报能力、电子防御能力、电子进攻能力和电子防护能力在现代海战中的需求,提出了未来电子对抗装备的网络化、一体化和无人化的发展趋势。     

Studies on the oscillation behavior of a flexible plate in the wake of a D-cylinder

This paper studies the oscillation behavior of a flexible plate in the wake of a D-section cylinder. The interaction between the flexible body and its surrounding vortices is investigated. A modified immersed boundary method is used to solve the motion of fluid, integrated with a linearized Euler-Bernoulli beam model to govern the motion of the flexible plate. Results show that, when the distance between cylinder and plate is small, the surface of the plate is surrounded by vortices layers and the plate oscillates periodically, with amplitude similar to the cylinder movement. However, if the distance becomes large, we find that the vortices are shed from the D-cylinder in front of the plate, and the incoming vortices make the plate oscillate with large amplitude at the beginning and then slant laterally. Also, the amplitude becomes smaller compared to the case of the small distance.