胶合板厂含酚废水处理的试验研究

利用除尘废水中粉煤灰的吸附作用,对含酚废水进行处理.结果表明:含粉煤灰的除尘废水对酚有较好的吸附作用,酚吸附率≥98％,吸附后清液中酚≤0.5 mg/L;除尘废水pH值在3.5～7、温度在40℃～70℃范围内,粉煤灰对酚的吸附均能取得很好的吸附效果;同时粉煤灰兼有去除含酚废水中的甲醛和色度.采用该法对胶合板厂的含酚废水进行处理,处理效果能达到国家废水排放要求.     

合成碳羟基磷灰石吸附废水中Cd2+的动力学和热力学研究

利用废弃蛋壳合成碳羟基磷灰石（CHAP），对含镉废水进行吸附研究，考查了溶液的pH值、吸附时间和温度对吸附平衡的影响．结果表明：pH=6．00，吸附时间为60min，温度为35℃，CHAP对10～30mg/L的Cd^2＋的吸附率达到99％，吸附动力学符合拟一级速率方程，理论计算值与实验值吻合很好．常温下CHAP对Cd^3＋的吸附用Langmuir和Freundlish方程进行拟合，相关系数R2分别达到0．9753和0．9954，说明吸附反应符合这两种吸附模型．吸附过程的焓变△H〉0，自由能变△G〈0，反应容易进行。为自发吸热反应．图8，表4，参8．     

利用藻类去除电镀废水中重金属的实验研究

用正交实验分析温度、金属浓度等因素对3种藻粉（小球藻粉、螺旋藻粉、海带粉）吸附电镀废水中重金属（Pb^2＋、Cu^2＋、Zn^2＋）的影响，同时比较活藻和藻粉对重金属的吸附量．研究结果表明：藻粉和活藻对3种重金属的吸附量顺序均为Pb^2＋〉Cu^2＋〉Zn^2＋，3种藻粉在温度为40℃，浓度为6mmol/L时均达到最大吸附量，每种藻粉对金属的吸附量与重金属溶液浓度呈正相关．死藻对重金属的吸附量明显大于活藻，死藻在工业上运用更具优势．     

改性甘蔗渣吸附含铀废水研究

研究了改性甘蔗渣对铀的吸附性能,试验确定了改性甘蔗渣吸附铀废水的最优条件:当铀浓度20 mg/L、pH=4.0、温度25℃、吸附剂用量为20 g/L,吸附时间为90 min,吸附效果最佳.用红外光谱研究了吸附剂改性前后及吸附铀后结构变化.     

生物活性炭应急吸附处理高锑矿井水实验研究

生物活性炭吸附技术具有简易、高效等特点,在水环境污染应急事故处置中应用越来越受到重视。本文利用矿区常见的废弃玉米秸秆和稻壳等生物炭对矿区高含锑矿井废水进行吸附实验研究。通过扫描电镜和红外光谱进行表征,分析其应急处置的可行性,并确定了最佳应急处置条件。结果表明:改性后的废弃稻壳和玉米秸秆对高含锑矿井废水的最佳吸附效率均能突破60%,能满足应急处置的要求,最佳热解温度分别为375℃、275℃,最佳吸附粒径分别为16～32目,最优吸附时间均为4 h。还通过对比得出:废弃玉米秸秆的吸附能力要高于稻壳。本研究可为水污染事件应急处置提供指导。     

海泡石对有机染料吸附作用的研究

本文研究了海泡石在水相中对有机染料的吸附作用，考察了海泡石粒度，溶液的ＰＨ、温度及吸附时间对海泡石吸附有机染料的吸附率的影响，测定了５种有机染料水溶液的吸附等温线，获得了一些有用的数据，为海泡石应用于处理印染废水提供了依据。     

凹凸棒石改性麦秸木质陶瓷的制备及其对苯酚的吸附效果

文章以麦秸和凹凸棒石为原料,以酚醛树脂为黏结剂,按照不同质量配比混合,在100～150℃、6MPa下热压40min后,在一定温度下烧结制备凹凸棒石改性麦秸木质陶瓷,并利用该木质陶瓷对含酚废水进行吸附试验。结果表明,在900℃下烧结的凹凸棒石改性麦秸木质陶瓷(m(麦秸)∶m(凹凸棒石)=5∶1)对苯酚的吸附效果最佳,吸附率达97.8%;当50mL、50mg/L苯酚溶液中木质陶瓷的投加量为0.5g,振荡时间为60min,溶液温度为25℃时,该木质陶瓷对苯酚的吸附效果最佳,吸附率达98.12%,且其吸附率随着溶液pH值和苯酚起始质量浓度的增加而减小。由此可见,凹凸棒石改性麦秸木质陶瓷对苯酚的吸附效果受材料配比、烧结温度、陶瓷投加量及振荡时间等因素的影响。     

丝光沸石静态吸附牛尿废水中磷的实验研究

以丝光沸石作为吸附材料,采用静态吸附法考察了丝光沸石对牛尿废水中总磷的吸附效果及影响因素,并对其吸附等温曲线进行了研究.实验结果表明,静态吸附的最佳工艺条件为:处理50 mL的总磷质量浓度为45.67 mg.L-1的牛尿废水,当吸附剂用量为3.0 g,牛尿废水pH为9.0,吸附时间为6 h,温度为30℃时,吸附后总质量磷质量浓度可下降到10.25 mg.L-1,去除率可达到77.56%.Freundlich吸附等温方程比Langmuir吸附等温方程能更好地描述磷在丝光沸石上的吸附行为.说明丝光沸石作为吸附剂去除牛尿废水中的磷是可行的.     

芬顿与活性炭协同处理含酚废水的试验研究

对芬顿试剂和活性炭协同处理含酚废水的处理效果进行了研究,主要考察了过氧化氢的投加量、硫酸亚铁的投加量、pH值、吸附时间以及吸附温度等对处理效率的影响。试验结果表明,最佳处理条件是过氧化氢(30%)的投加量为2mL/L,硫酸亚铁的投加量为2g/L,pH值为5,吸附时间为30m in,吸附温度为30℃,此时COD去除率为86.82%,色度去除率为68.59%,SS去除率为64.31%。     

酸改性木屑处理含Cr~(6+)废水

利用常见的三种酸对木屑进行改性,探讨了不同酸浓度对改性木屑吸附容量的影响,实验表明,当硫酸、磷酸和硝酸的浓度分别为50%、40%、30%、对铬的去除效果最好。实验探讨了吸附时间、吸附温度、p H和吸附剂投加量等因素对Cr~(6+)去除率的影响。在吸附时间为70 min,p H为2时,木屑投加量为1 g、温度为30℃,对铬的去除率,三种酸改性的木屑吸附剂均在此条件下去除率达到最佳,分别为99%、98%、99%。酸改性的木屑对Cr~(6+)吸附行为符合Langmuir等温吸附模型,吸附过程符合准二级动力学模型。     

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.     

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.     

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.     

A computer generator for randomly layered structures

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

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.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-