内河船舶污染物岸上接收模式分析

内河水污染的形成过程中,由内河船舶引起的操作性污染占很大的比重。内河船舶操作性污染具有故意性,可通过制度安排和有效监管得到控制。目前,我国对内河船舶污染物主要采取岸上接收的方式进行处理,在取得一定效果的同时,也出现了船舶非法排污现象屡禁不止,船舶污染物接收处理单证上数据与船舶污染物接收公司实际接收污染物的数量存在差异,实际接收效果不佳等诸多问题。本文从内河船舶产生的污染物种类及处理方式入手,整体分析内河船舶污染物岸上接收模式产生问题的原因,提出改进措施,旨在提高内河船舶污染物岸上接收模式的效能,保护内河水环境功能,实现航运的安全、绿色、可持续发展。     

船舶生活污水污染及治理方式

结合国内外现状及调查资料,介绍了船舶生活污水污染及污染特性.从船舶生活污水的处理装置入手,论述了船舶生活污水贮存、船上处理和岸上接收处理的方式.     

船舶压载水处理系统的现状研究

根据2004年国际海事组织制定的压载水公约,本文综述了国内外船舶压载水处理系统的研究现状,通过分析三种符合国际海事组织压载水排放标准的压载水处理系统的各自特点,找出适合船厂及船运公司在近期及远期满足压载水公约的最佳应对系统。     

船舶压载水的主要处理技术

船舶压载水可以提高船舶的稳性和保证船舶安全航行,但是压载水携带的外来入侵的生物给全球海洋生态环境和人类健康带来很大的危害,因此要在船舶压载水排放前对其进行处理以减轻危害.通过介绍目前主要的船舶压载水处理技术,分析各种处理技术的优缺点.     

压载水处理技术评估(英文)

根据即将生效的压载水公约对压载水处理的要求,对世界范围内流行的压载水处理技术进行分析、比较,指出两种处理技术中过滤和消毒的具体方法的优缺点,认为单一处理方法不能满足公约要求.     

浅谈船舶压载水处理技术(英文)

外来生物的入侵对生态环境、人类健康及经济发展带来了巨大的负面影响.控制船舶压载水的排放以及研究较为有效的压载水治理方法是解决外来物种通过压载水入侵的有效途径.对目前正在使用的或正在研究中的船舶压载水处理技术等进行比较详细地阐述,分析各种方法的利弊,提出最有效可行的压载水处理方法.     

船舶压载水沉积物的无害化处理与资源化利用

阐述了一些国内外对船舶压载水沉积物的处理方法及其资源化利用现状.考虑到压载水沉积物的特殊理化性质,提出了两种可用于压载水沉积物无害化处理的可行性方案,并针对处理后沉积物的性质提出了资源化利用方案.     

船舶压载水快速检测方法的研究进展

船舶压载水引发的生物入侵问题日益严重.通过对浮游生物典型检测方法的分析,对比了不同压载水检测方法的技术特点.基于不同使用环境下压载水检测要求,阐述了不同环境因素下选择压载水检测形式的方法和原则.结合目前船舶压载水检测的形势和需求,展望了压载水检测方法的发展趋势.建议今后实践应用中需要根据压载水类型和处理要求灵活选择检测...     

压载水处理技术及其优缺点(英文)

近年来,国际航运界意识到压载水里所含的生物体、病原体将会对有些地区的海洋生物多样性产生显著影响.为此,国际海事组织、全球环境基金等组织,采取多项措施,发展压载水处理技术.本文将简要介绍主要压载水处理技术,并分析其优缺点.     

当前压载水处理技术介绍及比较(英文)

船舶压载水是有害生物入侵的主要途径之一[1].国际海事组织已采取多种措施来控制和减少有害生物通过压载水的船舶入侵,包括全球压载水计划和2004年2月13日实施的国际船舶压载水控制和管理公约.介绍几种被证明有效的压载水处理技术,并对这些技术做一些简单对比.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that