船舶压载水处理方法及技术概况(英文)

船舶压载水携带的外来入侵性海洋物种对全球海洋生物多样性和生态系统环境造成巨大危害.探讨处理船舶压载水的方法和技术的优缺点,防治船舶压载水带来的海洋生物入侵和传播,保护海洋环境.     

防止船舶压载水污染厦门海域的应对措施

概述了船舶压载水携带有害水生物和病原体破坏海洋生态环境及危害公众健康问题，介绍了防止压载水污染的各种压载水处理技术措施．根据厦门港面临的船舶压载水污染威胁，提出了制定有效的压载水管理条例、加强执法人员培训等应对措施.     

船舶压载水处理的主要方法(英文)

近几年来,船舶压载水的危害越来越受到各界的关注,国际海事组织积极跟进,先后通过决议和公约的形式为船舶压载水的控制和管理提供操作指南.分析现有的主要船舶压载水处理方法,并对比其优缺点.     

船舶压载水导致的生物入侵及其防治对策

国际航运船舶,尤其是船舶装载的压载水是传播地理性隔离有害生物的主要途径,这类传播目前已经在世界范围内对生态环境和世界经济造成了巨大的危害．该文介绍了国际航运船舶压载水情况,压载水所携带生物种类,以及可能入侵的风险和危害．总结了目前已经应用和正在研究中的各种处理压载水的方法,提出了使用风险评估系统与动态生态模型相结合,应用计算机和数学的定量分析手段的必要性和重要性．以期对压载水的生物入侵可能造成的风险和危害给出定性乃至定量的评价,为我国压载水处理和生物入侵的综合防治提供参考．     

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.     

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...     

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.     

压载水处理技术概述及压载水公约未生效原因初探

近年来国际航运界意识到船舶压载水导致的外来生物入侵对环境、人类健康及经济发展带来了巨大的影响.为此发展多样的能够有效解决外来物种通过压载水入侵的技术是国际航运界的共同目标.介绍目前主要压载水处理技术,分析国际海事组织制定的压载水公约未生效的原因.     

水力超声空化协同灭活压载水中微藻的研究

船舶压载水异域排放已经威胁很多国家的海岸生态环境,人类的安全和健康。为了在船舶压载水排放前就对其中的微生物进行灭活处理,该文自制了水力超声空化装置,并研究其对船舶压载水中的典型藻类异弯藻的灭活效果,探讨了超声波脉冲时间对灭活效果的影响。经研究表明,超声波能和水力空化协同作用,在离心泵频率为35Hz,作用60min之后,超声波脉冲时间为5s和8s的灭活效果较好,灭活率分别达到68.83%和68.52%。该技术在压载水处理领域有很好的应用前景。把该技术实际用于处理现实生活中大规模的压载水,还需要进一步研究。     

原生海水模拟船舶压载水的电解试验

用原生海水模拟船舶压载水进行了电解处理的试验研究,直接电解处理船舶压载水,以4.0 mg/L初始余氯处理, 能杀灭99.99%的细菌和72%的藻类及部分原生动物;理论计算证明, 通过直接电解以5.0 mg/L初始余氯处理1 000 m3船舶压载水交流电耗仅为35 kW*h. 并还提出了解决腐蚀问题的两种方案,即压载时处理保持低余氯和充氮脱氧后排放时电解.     

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.     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

正~~