某钡盐厂钡渣成分研究及渣场污染的综合治理

贵州省重晶石探明储量为全国之冠，该省某钡盐厂碳酸钡年产量，出口量均居世界第一位，但该厂钡渣堆场运行中因岩溶渗漏导致环境污染，在实际调查渣场，污染现状及剖析生产工艺的基础上，从分析测试新，旧渣化学成分，可溶性，物相，物理力学特性力手，提出了如下综合治理措施；改进工艺以控制污染物排放总量；渣场导流，分流以避免降水及污水渗滤；废渣掺石灰碾压以减少废渣的可渗滤性等，成功的以较低的防渗治理工程费用，解决了运行中渣场的渗漏污染问题。     

工业废渣库岩溶渗漏污染预测和评价

本文对岩溶地区工业废渣库的渗漏类型和渗漏污染特征进行了详细探讨，应用混合稀释扩散预测模型，水动力弥散迭加模型和系统模型，进行渗漏污染的预测和评价。     

扎塘赤泥堆场岩溶渗漏及防渗处理

扎塘赤泥堆场在80至90年代曾发生岩溶渗漏；通过地质、水文地质、勘探等工作，初步查清了该场向牟老泉和向百花湖方向的岩溶渗漏通道。通过采取降低碱耗，封堵落水洞，赤泥铺盖，加大回水，垂直帷幕灌浆等综合治理措施，历时10年，实现了在岩溶发育地带对高浓度碱水进行防渗治理的预定目标，杜绝了扎塘赤泥堆场废水外排，取得了显著的防渗效果。     

基于管道流理论的岩溶地层深基坑渗漏特性数值模拟研究

以佛山地铁三号线中山公园站岩溶地层深基坑工程为研究背景，针对岩溶地层深基坑渗流通道渗流特性的表征方法开展研究，并对岩溶基坑三种渗漏模式下的渗漏通道进行概化分析，构建岩溶基坑渗漏水力计算模型，基于水力学管道流理论对概化管道等效渗透系数进行定量表征，实现岩溶基坑渗漏通道的定量分析。     

皮革废渣堆放过程中的环境效应

通过渗漏模型试验对皮革废渣(蓝皮屑)在堆放过程中的环境效应进行了研究.研究表明,随着时间的增加,皮革废渣渗漏液中铬的渗出含量迅速增加,达峰值后逐渐减少,废渣渗漏液中铬的渗出浓度最大值达0.356mg/L.在12.5小时内,单位质量废渣铬的渗出量为64mg/kg.同时测得随时间的增加,渗漏液由弱碱性逐渐变为弱酸性.pH值可低至5.58.由此可推测出在堆放过程中,皮革废渣可能对环境造成一定程度的铬污染,对土壤或水体的酸碱度也有一定影响.     

大干沟岩溶地下水磷污染评价

由于受到磷石膏库岩溶渗漏影响 ,大干沟岩溶地下水磷污染问题严重 ,并且威胁着乌江渡水库水资源环境。通过岩溶渗漏条件分析及污染评价得出 :①污染渗漏形式可分为岩溶管道和裂隙类型 ;②污染途径可分为直接和间接污染 ;③磷污染不仅使岩溶地下水不能作为饮用水、生活用水和灌溉用水 ,而且严重污染了地面水 ,并使水库产生富营养化问题。     

乌江34号泉磷污染预测

通过对乌江镇34号泉的水文地质勘查及地下水污染监测表明,因位于该泉含水系统补给区的4#磷石膏堆场产生岩溶渗漏,使34号泉出现了磷污染。在确定了渗漏污染为岩溶裂隙管道线状弥散运移类型的基础上,建立了34号泉岩溶渗漏污染的BP神经网络预测模型,使用不同的训练函数对34号泉磷污染进行预测评价,预测结果接近实际,为乌江渡至楠木渡河段水污染防治提供了依据。     

鸡心坡灰场渗漏污染预测

通过对灰渣场地的水文地质勘察、试验及监测，分析了造成了灰渣场地塌陷的原因和渗漏途径。认为灰渣场地塌陷地段为人为乱掘浮煤层形成的浅层塌陷，因此灰渣场渗漏污染途径为浅层塌陷和地下小煤洞→采煤巷道（采空区）→沙冲矿坑口→蔡冲河→阿哈水库，应用稀释混合模型进行了渗漏污染预测评价，根据预测结果，提出了渗漏污染处理措施。     

扎塘赤泥库渗漏评价

本文通过实际勘查,研究了赤泥库的岩溶发育规律和水文地质条件,得出赤泥库有两个渗漏方向,三条渗漏途径,并计算了渗漏量和纵向弥散度,为渗漏治理提供了一定的依据。     

房屋建筑渗水及其治理

渗漏是房屋建筑的主要功能性通病之一。本文着重分析房屋建筑各种渗漏的原因，并探讨其预防治理措施。     

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