基于人工势场法的AUV回收航路末端导引方法

滑道式回收AUV方法是一种适用于较复杂海况下作业的AUV回收方法,该方法要求AUV在到达母船尾部时需要具有一定的艏向朝向母船,方便操作人员对AUV头部的牵引绳进行抓取。为解决这个问题,阐述了一种基于人工势场法的回收航路末端导引方法。描述了滑道式回收AUV方法的工作原理,针对该回收方法对回收航路末端艏向要求的问题,引入了人工势场的思想,设计了基于人工势场法的回收航路导引算法。仿真结果表明:所设计的方法能够有效地进行滑道式回收AUV的末端航路规划,解决了航路末端艏向的问题。     

镁铝比对高炉低铝渣系流动性能及热稳定性影响规律

以本钢现场高炉渣成分为基础,结合粘度测定实验和热力学分析计算,研究了不同镁铝比对高炉低铝渣流动性的影响规律,计算了镁铝比对低铝渣系粘流活化能的影响,同时结合红外光谱分析,从微观结构层面阐述了镁铝比对低铝渣热稳定性的影响机理.结果表明,炉渣粘度及熔化性温度均因镁铝比的提升表现出逐渐走低的趋势,而低铝渣的温度稳定性则因炉渣中复杂结构的解聚而愈趋稳定.     

数据融合技术在变压器状态评估中的应用

电力变压器是电力系统及变电站的最至关重要的设备之一。对电力系统进行运行维护时,监测并预报变压器运行状态并且能够有效地监测并判断变压器的故障情况具有非常现实的意义。基于设备状态信息融合技术,分析了D-S证据理论的基本原理、组合规则和决策过程。通过具体的实例论述了诊断方法的具体可行性,比较了单一诊断方法(只经神经网络判断的结果)与信息融合技术的正确率,并指出信息融合技术的发展优势和可实现性。     

Role of molecular structure on bioelectrochemical reduction of mononitrophenols from wastewater

The effect of nitro-substituent on mononitrophenol (o-nitrophenol (ONP), m-nitrophenol (MNP) and p-nitrophenol (PNP)) reduction in a bioelectrochemical system (BES) was investigated in this study. The results show that the removal of all three nitrophenols was significantly enhanced with more negative cathode potential and shortened hydraulic retention time in the BESs. Moreover, the reduction of the three nitrophenols followed in the order of ONP > MNP > PNP in the BESs. Both quantum chemical calculation using density function theory and cyclic voltammetry analysis confirmed the reductive sequence of the three nitrophenols. In addition, the acute toxicity of nitrophenol effluent significantly decreased while its biodegradability was enhanced after treatment in the BES. Therefore, the BES technology offers bright prospects for efficient treatment of nitrophenol-containing wastewater.     

Locating architecture,post-colonialism and culture: contextualisation in Algiers

Through discussion of the case of Algiers, this paper exposes the forces by which architecture as a system of meanings and experiences is affected by a broader network of meaning. It examines how the built environment can contribute to the preservation of cultural values, and can also act as a physical instrument of cultural change. The study of the way that the built environment was produced in Algiers under Ottoman rule (fifteenth – nineteenth centuries), and the subsequent transformations that occurred under French colonialism (nineteenth – twentieth centuries), along with the cultural implications of each period, reveals that the extent to which architecture and culture relate to/affect each other depends on the broader political, economic and social context.     

低能耗高舒适度型医疗建筑设计探索——以解放军91医院为例

随着我国医疗事业的发展,医院的建筑规模和医疗设备都有了很大程度的改善,同时医院的能源消耗也在不断增加,如何降低医院建筑能耗的同时又能提高舒适度成为当今面临的重要问题。低能耗高舒适度型医疗建筑是“绿色环保”与“以人为本”的理念的综合体现。首先对低能耗高舒适度型医疗建筑的内涵与特征进行了论述,通过实例对低能耗高舒适度医疗建筑的设计策略进行探索,之后对其能耗和舒适度进行评价。     

“城中村”改造的创新思维——以益阳高新区“城中村”改造为例

在城市化进程中,城市建设急剧扩张与城市管理体制改革相对滞后造成了“城中村”的特殊现象。本文以益阳高新区为例,对益阳高新区“城中村”改造所面临问题进行了全面地研究,结合益阳市“城中村”改造政策以及高新区开发建设特点和现状情况,提出了益阳市高新区“城中村”改造的新思路。     

株洲市中心医院的结构设计

较详细地介绍了株洲市中心医院结构的设计过程,包括基础选型,超长地下室,钢结构屋盖设计,以及医疗设备用房相关的荷载取值,防辐射,直线加速器室,高压氧舱的设计要点等,相关设计方法可供同类项目参考。     

浅谈郑州地铁1号线轨面光带与线路状态之间的关系

在运营维护方面,城市轨道与传统铁路有着密切联系,但因运营特点、线路作业环境不同而又有差异。文章根据地铁维护特点,通过近距离调查轨面光带形态及线路几何尺寸,总结出了光带与线路状态之间的部分关联。