Banach空间中非扩张映射的不动点逼近的Ishikawa迭代程序

设X为实一致凸Banach空间,其共轭空间X*具有KK性质,C为X的非空有界闭凸子集。若T为C到自身的非扩张映射,则对任给的x0∈C,Ishikawa迭代程序xn 1=tnT(snTxn (1-sn)xn) (1-tn)xn,n=0,1,2,…,定义的序列{xn}弱收敛到T的某个不动点,其中{tn},{sn}满足一定的条件。     

任意连续型随机变量序列关于广义赌博系统的一类强极限定理

设{Xn,n≥0}是任意相依的连续型随机变量序列,{Yn,n≥1}为一列广义随机选择函数.{Bn,n≥0}是实直线上的Borel集,IBn为Bn的示性函数.采用构造n元乘积密度函数及非负上鞅的方法,研究了{YnIBn（Xn）,n≥1}的极限性质,得到了一类用等式表示的强偏差定理,其偏差依赖于样本点.     

一维奇型Dirac算式自伴域的刻画

Dirac方程是量子力学的基本方程，讨论Dirac算式的自伴域在数学物理中有广泛的应用，文中根据Dirac算式的最大定义域、最小定义域和Dirac算式在区间[0，b]上的自伴域的结果，利用自伴延拓的Calkin描述通过对b取极限的讨论推导出Dirac算式在区间[0，＋∞）上的自伴域D（T（L））={f∈D（L）／f1（0）Cosα＋f2（0）sinα}，并证明了当势函数q1（x），q2（x）为区间[0，＋∞）上的实值连续函数，则L必是极限点．     

任意连续型随机变量序列关于广义赌博系统的一类强偏差定理

设{Xn,n≥0}是任意相依的连续型随机变量序列,{Yn,n≥1}为一列广义随机选择函数.{Bn,n≥0}是实直线上的Borel集,IBn为Bn的示性函数.文中采用构造n元乘积密度函数及非负上鞅的方法,研究{ YnIn(Xn),n≥1}的极限性质,得到相依连续型随机变量序列的一类强偏差定理,其偏差依赖于样本点.     

港口吞吐量的随机分析

货船按参数为λ的泊松过程{N(t),t≥0}进入港口,各货船所装卸货物的重量形成一族独立同分布的随机变量{Xi,i=1,2,},在t时间内货船装卸的货物可用Y(t)=∑=N(t)(i=1)Xi表示,其中{N(t),t≥0}和{Xi,i=1,2,}相互独立,这可看作是一个复合泊松过程,并从随机过程的角度分析了港口在t时间内总吞吐量的数字特征,证明货物总吞吐量过程具有独立平稳增量性。     

一类半线性抛物方程解的爆破集

给出了关于半线性抛物方程x^qur=uxx x^αu^p解的几个引理，证明了在条件p α≤q 1下此方程解的爆破集为{0}。     

极小化r个最大函数和的一阶光滑化方法

研究如下问题：已给m个定义在n维欧几里德空间的函数，在这m个函数中求r个最大值函数的最小值，其中1≤r≤m．显然，该问题是非光滑最优化问题，不能直接用一阶最优化方法或梯度法来求解．将此问题转化为只包含最大值函数max{0，t}的非光滑问题，对该非光滑问题提出了一种收敛的一阶光滑化算法．     

一类非线性波动方程的整体吸引子

为了更好地了解非线性波动方程解的性态，研究了一类含有混合导数项的非线性波动方程的整体吸引子的存在性问题：在引用Kuratowski测度的定义并对其基本性质进行讨论的基础上，通过渐近先验估计，证明了解半群{S（t）}t≥0在Kuratowski测度下的渐进光滑性，从而得到了这类含有混合导数项的非线性波动方程在H0^1（Ω）×L^2（n）上的整体吸引子的存在性定理．     

（0，mf-m＋1）-图的正交（0，f）-因子分解

设G是一个图，是定义在V（G）上的整数值函数且对A↓∈V（G）有f（x）≥2k．设H1，H2，…，Hk是G的k个顶点不相交的子图，且｜E（Hi）｜=m，1≤i≤k．证明了每个（0，mf-m＋1）-图G有一个（0,f）-因子分解正交于Hi（i=1，2，…，k）．     

一种新型金属有机骨架化合物［Co3（Hbdc）2（bdc）2］·4DMF·2H2O的合成、表征与晶体结构

以柱状二齿配体吡嗪和对苯二甲酸（H2bdc）为混合配体,在溶剂热条件下与过渡金属离子Co2＋组装反应,得到一个新型金属有机骨架化合物[Co3（Hbdc）2（bdc）2]·4DMF·2H2O （1）．通过红外光谱、热重和单晶X射线衍射等分析手段对其进行了表征与分析．结果表明,化合物1的晶体属单斜晶系,空间群为C2/c．中心Co原子通过不同配位模式的bdc配体相连构成三维开放结构,孔道内填充了结晶的DMF和水分子．     

33rd International Conference on Ocean,Offshore and Arctic Engineering （OMAE2014）

正San Francisco,California,June 8-13,2014.OMAE 2014 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;·to exchange ideas and experiences whilst promoting technological progress and its application in industry·to promote international cooperation in ocean,offshore and arctic engineering.In line with the tradition of excellence of previous OMAE conferences,more than 900 technical papers are planned for presentation.Outreach for Engineers Specialty Forum This Specialty Forum is designed for students and professionals who may not be familiar with the Ocean and Offshore industry,as well as those who have just recently specialized in this field.     

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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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。     

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.     

The 11th International Conference on Hydrodynamics (ICHD 2014)

正19–24 October 2014 SingaporeCONFERENCE THEMES The overall aim of the ICHD Conference is to provide a forum for participants from around the world to review,discuss and present the latest developments in the broad discipline of hydrodynamics and fluid mechanics.The first International Conference on Hydrodynamics(ICHD)was initiated in 1994 in Wuxi,China.Since then,9 more ICHD conferences were held subsequently in Hong Kong,Seoul,Yokohama,Tainan,Perth,Ischia,Nantes,Shanghai and St Petersburg.Evidently the ICHD conference has become an important event among academics,researchers,engineers and operators,working in the fields closely related to the science and technology of hydrodynamics.The 11th ICHD will be held in Singapore in 2014.     

第十二届深水操作会议和展览会(英文)

正November 4-6,2014Moody Gardens HotelConvention Center/Galveston,TX The Deepwater Operations Conference and Exhibition is celebrating its 12th anniversary this year.This growing event will continue the tradition of excellence in addressing operational challenges involved in developing deepwater resources.We will return to the Moody Gardens Hotel and Convention Center on November 5-7,2014 in Galveston,Texas.     

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）.     

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.     

某海港码头的撞损修复

依据码头撞击受损区域调查检测结果,对受损构件提出合理的修复方案,为码头的安全运行提供保障。