臭氧化-活性炭吸附镉的条件

为改善活性炭对镉的吸附性，将臭氧化技术引入吸附过程，研究活性炭投加量、臭氧活化时间以及溶液质量浓度变化对活性炭吸附镉离子能力的影响。结果表明，对于初始镉离子质量浓度为10mg/L的吸附溶液，最佳臭氧化时间为15min、最佳吸附时间为1h、活性炭的最佳投加量为1．0g时，吸附后镉离子的质量浓度为0．54mg／L；对于镉离子初始质量浓度为15mg/L的吸附溶液，最佳臭氧化时间为30min、最佳吸附时间为1h、活性炭的最佳投加量为1．1g时，吸附后镉离子的质量浓度为0．56mg／L。实验证明，经臭氧活化后的活性炭的吸附能力明显增强，极大的改变了吸附结果。     

微波辐射处理活性炭—吡啶溶液的实验

以活性炭、吡啶溶液为研究对象。考察了微波辐射时间、微波功率、活性炭用量、吡啶溶液初始溶液浓度、pH值等因素对微波处理活性炭、吡啶溶液的影响。实验结果表明：微波辐射处理后的活性炭对吡啶的吸附具有明显的高效率，3．5min去除率即可达60％以上；而不用微波辐射处理的活性炭对吡啶的吸附，50min后，去除率才达70％。微波辐射使活性炭孔隙结构发生了明显的变化．增强了其对吡啶的吸附能力．     

蒙脱石对Cu2+吸附性能及吸附工艺条件优化研究

从蒙脱石的提纯入手,进行了蒙脱石吸附Cu2+实验研究,结果表明蒙脱石对水中Cu2+的吸附性能主要受振荡速度、吸附时间、溶液pH值及吸附剂用量等因素的影响,30℃时蒙脱石对水中Cu2+的吸附等温曲线同时符合Langmuir方程和BET方程.在本实验条件下,蒙脱石对Cu2+(20 mL,Cu2+质量浓度均为50 mg/L)的最佳吸附工艺条件为振荡速度50 r/min,吸附时间60 min,吸附剂用量0.08 g,溶液pH为6.0,此时去除率达到99.2%.     

双液隔电极式压电化学传感器的振荡频率特性研究

在双液隔电极式压电石英传感器ＤＬＥＰＱＳ的等效电路模型的基础上建立了双ＥＳＰＳ的振荡方程，导出了ＤＬＥＰＱＳ振荡频率与溶液参数之间的理论关系式，并经实验证实，还对ＤＬＥＰＱＳ与ＳＬＥＰＱＳ的响应性能进行了比较。研究结果表明，随溶液电导率的增加，ＤＬＥＰＱＳ的振荡频率先下降而后上升，且在低电导率溶液中振荡频率与电导率之间有近线性关系；随溶液介电常数、粘度、密度的增加，振荡频率下降。并将ＤＬＥＰＱＳ应用于表面活性剂在石英表面吸附量的现场测定。     

硅藻土吸附Cu^2＋吸附平衡等温式及穿透曲线的测定

研究了硅藻土对Cu^2＋进行静态吸附的吸附平衡等温式。研究表明：它符合兰缪尔吸附等温式，而且温度越高吸附效果越好，达到吸附平衡所需时间为3h；通过实验绘制出了硅藻土吸附铜离子的穿透曲线，开始穿透时间是5min，完全穿透的时间为15min；无论是静态吸附或动态吸附，硅藻土对Cu^2＋的吸附都具有一定的吸附效果。     

蒙脱石对Cu2+吸附性能及吸附工艺条件优化研究

从蒙脱石的提纯入手,进行了蒙脱石吸附Cu2+实验研究,结果表明蒙脱石对水中Cu2+的吸附性能主要受振荡速度、吸附时间、溶液pH值及吸附剂用量等因素的影响,30℃时蒙脱石对水中Cu2+的吸附等温曲线同时符合L angmuir方程和BET方程。在本实验条件下,蒙脱石对Cu2+(20 mL,Cu2+质量浓度均为50 m g/L)的最佳吸附工艺条件为:振荡速度50 r/m in,吸附时间60 min,吸附剂用量0.08 g,溶液pH为6.0,此时去除率达到99.2%。     

氨基膦酸树脂对汞、铅混合液的吸附研究

研究氨基膦酸树脂对汞、铅混合溶液的吸附行为．结果表明：树脂对混合溶液中的汞、铅都能产生吸附；当混合溶液中汞、铅浓度相同时，树脂对铅的吸附率要大于树脂对汞的吸附率；当混合液中汞、铅浓度不相同时，在实验条件下，无论是汞的浓度大于铅的浓度，还是铅的浓度大于汞的浓度，其吸附率都是树脂对铅的吸附率大于树脂对汞的吸附率；当树脂的功能基与溶液中汞、铅离子的物质的量相当时，树脂能基本完全吸附溶液中的汞、铅离子．所以，氨基膦酸树脂可作为含汞、铅废水的实用吸附剂．     

粉煤灰吸附去除活性艳兰X—BR

研究了粉煤灰对活性艳兰Ｘ－ＢＲ的去除效果．发现粉煤灰对染料的去除率与加灰量、接触时间、溶液浓度和酸度有关．在条件为：浓度２００～６００ｍｇ／Ｌ，ｐＨ２～１０，加灰量６０ｇ／Ｌ，振荡吸附３ｈ时，去除率可达９５％以上．粉煤灰对活性艳兰Ｘ－ＢＲ的脱色吸附符合Ｌａｎｇｍｕｉｒ吸附等温式．     

对硝基苯酚在不溶性腐殖酸中的吸附行为

制备了不溶性腐殖酸（IHA），研究了对硝基苯酚在不溶性腐殖酸中的吸附特征，考察了温度和时间对吸附量的影响，并对吸附机理进行了探讨．结果表明，不溶性腐殖酸对对硝基苯酚具有强烈的吸附作用，在pH=3．5时，吸附的最佳模型为Langmuir型；温度分别为25℃（2，35℃．45℃时．在实验浓度范围内．对硝基苯酚在不溶性腐殖酸中的吸附率分别为94．00％。95．43％，97．66％；在同样温度厦pH条件下，动态实验的饱和吸附量大于静态实验饱和吸附量，吸附作用以物理吸附为主．     

甲壳糖对Au^3＋氧化还原吸附性能研究

研究了不同脱乙酰度甲壳糖对Ａｕ＾３＋的吸附性能，广角Ｘ－射线衍射实验有甲壳糖能把Ａｕ＾３＋还原成Ａｕ，静态吸附实验结果表明，甲壳糖对Ａｕ＾３＋的吸附量随脱惭酰度的增大而升高脱乙酰时间为４ｈ的甲壳糖对Ａｕ＾３＋的吸附量随溶液ＰＨ值的同而增加；在ＰＨ值等于５．０时吸附量达１１７３ｍｇ／ｇ；另外，随溶液离子强度或高甲壳糖对Ａｕ＾３＋的吸附量减少，吸附动力学实验结果表明，甲壳糖对Ａｕ＾３＋吸附量在１２０ｍ     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to