膨润土基固定化细胞颗粒材料的研制

首次采用成型化的膨润土基多孔粘土材料,作为固定混合脱色菌的载体,成功地制成膨润土基固定化细胞颗粒材料,应用于红色梁液废水的脱色处理,取得良好的效果。探讨载体制备条件对形成微生物细胞颗粒材料的影响,以及润土基固定化细胞颗粒材料染料阳离子红XGRL的脱色作用。     

染料脱色酶特性研究

从脱色优势菌ＮＤ１ 提取脱色酶,对酶特性进行研究．结果表明酶的最适作用条件为ｐＨ ７,３７℃,无氧环境,反应需ＮＡＤＨ 的参与;纯化结果表明经ＤＥＡＥ柱层析及Ｓｅｐｈａｄｅｘ Ｇ－１００ 凝胶层析后脱色速率分别提高１０ 倍和５０倍,Ｓｅｐｈａｄｅｘ Ｇ－１００ 凝胶层析中２～４ 管蛋白具有偶氮和蒽醌染料脱色酶活性,６～１２ 管具有蒽醌染料脱色酶活性．     

一种新型脱色絮凝剂的研究

研制的一种新型脱色絮凝剂－双氰胺－甲醛阳离子聚合物，对染料废水和印染废水的脱色絮凝效果较好，脱色率均可达９０％以上，ＣＯＤ去除率可达６７％，如与硅藻土复配使用，效果更佳．另外，本文还对脱色絮凝机理进行了探讨．     

臭氧脱色染浴中助剂的循环利用初探

通过分散染料和弱酸性染料的循环染色实验，筛选了几种在对染液通入臭氧后在氧化脱色条件下稳定的染色助剂，目的是为了减少臭氧脱色后的染液循环染色中助剂的用量，还研究了染浴臭氧脱色的工艺条件。     

壳聚糖对活性染料红M-3BE的絮凝脱色效果

从壳聚糖的质量浓度、pH值、温度、处理方式、常用染色助剂(元明粉和纯碱)等因素入手研究了壳聚糖对活性红M-3BE的絮凝脱色性能.结果表明:在100 mL染料溶液(100 mg/L)中,加入10 mL壳聚糖醋酸溶液(0.4g/L),壳聚糖对染料的絮凝脱色效果随染液pH值的下降而增加明显,脱色率在90%以上;但随常用染色助剂(元明粉和纯碱)浓度的增加,其絮凝脱色效果显著下降.在较佳絮凝条件下,壳聚糖对该染料染色废水的脱色率和COD去除率分别为19.84%和54.81%.此外,用壳聚糖处理活性染料染色废水时,需先用酸中和染色残液中的碱剂,再进行脱盐处理,以便壳聚糖发挥更好的絮凝脱色作用.     

马铃薯渣制备纤维PAF对含阳离子红染料废水的处理研究

研究了马铃薯渣制备的活性纤维(PAF)在染料废水中对阳离子红的静态吸附和动态吸附以及PAF的用量、吸附温度、时间等因素对其吸附能力的影响.结果表明,在实验条件下,温度、浓度、吸附时间及PAF的用量是影响吸附脱色的主要因素;PAF对阳离子红染料分子的静态吸附量Q为11.10 mg/g;动态吸附的吸附量比同时间下的静态吸附量要大,采用PAF装柱法有望进行该废水的处理.     

高铁酸钾对偶氮及醌类染料的脱色作用

研究了高铁酸钾对偶氮蓝、铬黑T、偶氮胂III、酸性铬蓝K和甲基橙5种偶氮染料及一种醌类染料茜素红的脱色作用,结果表明L除偶氮蓝、酸性格蓝K外,其它4种染液均可在30分钟内达到95％以上的脱色率,pH≤2时,茜素红染液的脱色率可达95％以上;pH≤6jf ,偶氮伸III染液的脱色率可达95％以上;pH≤7时,其它4种染液的脱色率均可达95％以上,另外,染液浓度不同,脱色时所需高铁酸钾的量也不同,但高铁酸钾的用量并不随染液浓度成正比例增加,因此,处理浓度的染液成本不会成倍增加。     

高铁酸钾对偶氮及醌类染料的脱色作用

研究了高铁酸钾对偶氮蓝、铬黑T、偶氮胂III、酸性铬蓝K和甲基橙5种偶氮染料及一种醌类染料茜素红的脱色作用.结果表明除偶氮蓝、酸性铬蓝K外,其它4种染液均可在30分钟内达到95%以上的脱色率.pH≤2时,茜素红染液的脱色率可达95%以上;pH≤6时,偶氮胂III染液的脱色率可达95%以上;pH≤7时,其它4种染液的脱色率均可达95%以上.另外,染液浓度不同,脱色时所需高铁酸钾的量也不同,但高铁酸钾的用量并不随染液浓度成正比例增加.因此,处理高浓度的染液成本不会成倍增加.     

气相色谱固定相GDX-103的酯化改性及其在白酒全分析中的应用

利用高分子多孔小球ＧＤＸ－１０３进行化学酯化健合，对其性质进行了研究，并用它作为气相色谱固定相对白酒的主要成份进行分析，证明其优于原ＧＤＸ－１０３．     

气相色谱固定相GDX—103的酯化改性及其在白酒全分析中…

利用高分子多孔小球ＧＤＸ－１０３进行化学酯化键合，对其性质进行了研究，并用它作为气相色谱固定相对白酒的主要成份进行了分析，证明了其优于原ＧＤＸ－１０３。     

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