远紫外光催化氧化处理餐饮废水优化研究

以TiO2为催化剂,采用远紫外光催化法对餐饮含油废水进行预处理,研究光照时间、油脂浓度、pH、TiO2各因素对其处理效果的影响。结果表明:光催化可以大幅降解油脂。光催化氧化技术正交实验表明,各影响因素对油脂去除率影响程度不同,光催化技术可以有效处理餐饮废水,可作为后续生物处理的预处理技术。     

上海海事大学成功研发船舶压载水处理新型技术装置

上海海事大学研发的"新型船舶压载水处理技术与装备",采用光催化组合技术,属国内外首创,已申请和已授权专利有5个。该技术处理的效率高(杀菌彻底、反应速度更高,效率比常规光催化处理方法提高2-3倍),成本低(体积小、能耗低、不使     

纳米固体光催化剂

福州大学光催化研究所成功研制了纳米固体超酸光催化剂。光催化技术采用这种催化剂在处理有机污染物时不会产生二次污染。该催化剂的催化活性高,深度氧化力强,抗湿性好,其工业产品对甲醛、溴化甲烷、乙烯等典型有机污染物的光催化分解速度提高了(1~3)倍。 转摘自《中国化工报》 纳米固体光催化剂     

化学氧化技术在废水处理过程中的应用与发展

本文介绍了多种化学氧化技术在废水处理中的原理，并重点介绍光催化氧化技术在废水处理过程中的作用及应用前景。     

室内空气净化技术

概述了室内空气净化的技术现状和进展，其中除尘技术详细介绍了静电、纤维过滤和负离子的特点、机理及影响因素，有机气体净化技术主要介绍了吸附、光催化及低温等离子的特点、原理及技术现状。     

船用新型空气净化技术的发展与应用

概述几种典型的气体污染物种类和引发的不良后果,阐述当前新型的空气净化技术及其发展。研究表明,低温等离子技术与光催化氧化技术的结合,具有规避单种净化技术的产生污染副产物的潜力,在船舶设计中具有应用前景。     

TiO2光催化空气净化技术在潜艇中的应用

潜艇大气环境质量是保持潜艇战斗力的重要因素之一.目前,我国潜艇的空气净化设备存在能耗高、噪声大、操作温度高等缺点.TiO2光催化技术是近年来新兴的一种净化技术,可快速清除空气中的有害气体,且具有无毒、操作简单、噪声小、能耗低等优点.本文简述了TiO2光催化剂降解有机物的原理,分析了光催化方法净化潜艇空气的可行性,设计了净化潜艇空气的流程,介绍了催化剂载体制作及纳米TiO2负载催化剂载体煅烧方法.     

光催化臭氧氧化高效水处理新技术

提高饮用水的质量是当今世界重点关注的前沿课题之一。目前,我国大多自来水厂在水处理过程中都运用传统的“混凝-过滤-投氧”工艺除浊、杀菌,这种方法的不足是难以清除水体系中存在的三氯甲烷、四氯化碳等小分子含氯有机物,这些有机物的积累被认为是危害人体健康的一大隐患。为解决这一技术难题,哈工大的科技人员根据光催化和臭氧氧化的协同理论,采用光催化与臭氧氧化技术进行水质处理,取得了明显的预期效果。他们通过光催化和臭氧氧化的协同作用,产生氧化性极强的羟自由基,可将水中用普通方法难以降解的有机污染物分解为CO2、H2O和其它无…     

关于船舶舱室空气净化策略的思考

概述了舱室空气污染物的主要种类、来源和危害.针对舱室空气污染现状,提出了改善舱室空气质量的三种净化舱室策略.阐述了光催化氧化和非平衡等离子复合净化技术,同时对舱室空气污染控制策略进行了展望.     

TiO2光催化剂的改性研究

本文综述了离子掺杂、贵金属沉积以及与半导体复合等方法来改善TiO2可见光光催化活性的研究进展,简要分析不同方法对其光催化性能的影响,并展望了TiO2光催化剂今后的研究方向。     

Errata

正In the paper"Influence of Fouling Assemblage on the Corrosion Behaviour of Mild Steel in the Coastal Waters of The Gulf of Mannar,India"in Vol.12,No.4,Page:509,References were lost,and the two authors’biographies were identical.The correct text is shown below.We apologize to the authors and our readers for any inconvenience caused by the errors.     

Journal of Marine Science and Application 2014 Sum. Contents

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第34届海洋、离岸及极地工程国际会议(英文)

正St.John's,Newfoundland,Canada,May 31-June 5,2015 OMAE2015 is the ideal forum for researchers,engineers,managers,technicians and students from the scientific and industrial communities from around the world to: meet and present advances in technology and its scientific support;     

联合作战计划和执行系统

全球指挥控制系统(GCCS)实施当前美国海军网络中心战信息基础设施的联合计划网络。联合作战计划和执行系统(JOPES)支持GCCS实现联合计划。JOPES有两类计划：时间不限的精密预案计划生成作战计划、方案计划或职能计划；时间敏感的危机行动计划生成作战命令或战役方案。前者在和平时期创建的作战计划是后者的计划基础，加速应付危机的能力。     

Eastbound or westbound ?

In terms of equal sailing distances, where is the inflexion when ships depart from ports in the Asian Continent to New York via Suez and/or Panama？
The answer is China South Port Group （Hong Kong, Shenzhen and Guangzhou）.     

Recent progress on wave induced loading measurements in warships

Recent measurements of wave induced hull strain and flexure in RN warships are presented together with the derivation of the current design criteria for extreme hull girder bending loads. The history of the development of the shipboard instrumentation used is given and recent developments to improve the quality and ease of analysis of the data are described. An unexpectedly high transverse asymmetry in the longitudinal strains measured in destroyers is shown to be the result of a combination of vertical and lateral bending in oblique seas. Finally recent theoretical comparisons between the loading of Deep-Vee hulls and conventional UK rounded bilge hulls are presented which demonstrate the higher loading experienced by this type of hull form.     

桥梁防撞设施物理模型试验

物理模型试验是预报防撞设施所受撞击力及优化设计方案的主要方法之一。结合杭州湾大桥柔性防撞设施及东海大桥独立式防撞体设计方案,阐述了船—防撞体撞击试验的基本原理、方法、试验方案及相关试验结果。提出了柔性防撞系统的优化方案。试验结果表明,该方案经济有效,可供预报类似桥梁防撞设施撞击力时参考。     

印尼某电厂码头水工建筑物设计

印尼某电厂项目码头水工建筑物包括码头、防波堤和护岸等主要组成部分。在该项目水工建筑物的设计过程中,综合考虑当地的自然条件、施工能力和材料来源等因素,不断优化结构选型和结构断面。根据不同使用要求,护岸分别采用直立式和斜坡式2种结构型式,推荐的设计方案节省投资、施工方便,可供同类工程设计参考。     

Impact of regulation on the performances of long-distance transport services: A comparison of the different approaches in Sweden and Norway

Despite the many socio-economic similarities between Sweden and Norway, differences in jurisdiction, organisation, cooperation, and financing of long-distance passenger train and coach services have led to the development of four distinctively different ways of serving the markets. This paper describes how the train and coach markets have developed in the two countries, with emphasis on regulatory and industrial structure and a couple of performance variables.Looking at passenger rail, both countries separated infrastructure from operation over a decade ago. However, while Norwegian rail is characterised by an almost monopoly supplier, rail services in Sweden are partly decentralised to the responsibility of county authorities and are widely subjected to competitive tendering. The rest of the network is about to be opened up for on-the-track competition. Swedish Rail (SJ) has spent the last decades consolidating its core business (passenger rail) and sold out its other businesses. In contrast, the Norwegian state rail (NSB) has expanded its business to become a major bus operator and property owner, with extensions also into the Swedish market.The coach industry was more recently deregulated in both countries. The Swedish coach market is dominated by privately owned companies operating services to and from Stockholm. In Norway, state-owned NSB is a major coach operator on medium distance routes, and is also the largest partner of Nor-Way Bussekspress which totally dominates long-distance coach services. Further, the Norwegian coach market is characterised by cross-ownership and cooperation which has enabled an extensive route network which covers most of Norway.We find distinct differences in achievements in the two modes and in the two countries. Swedish rail services have succeeded in winning market shares and in renewing and developing both infrastructure and service levels to a greater extent than the Norwegian model. On the other hand, the Norwegian coach market seems to be more developed and efficient compared to its Swedish counterpart.The paper concludes with a discussion on the possible links between the different approaches and the performance observed, with the aim to stimulate further and more detailed research on some important issues.     

开放式数据挖掘系统模型

目前国内已经出现了少量的数据挖掘相关产品。国内数据挖掘软件无论从数量还是质量上比较，都与国外软件存在着较大的差距。随着数据仓库技术的普及，数据挖掘应用的需求越来越强烈，如何缩短这种差距，研发数据挖掘软件产品成为国内业界的一个重要问题。通过引用目前国际通用数据挖掘标准技术来构建开放式的数据挖掘系统模型，该系统模型从可扩展性、可重用性、易用性等方面得到了加强。