K_(0.5)(NH_4)_(5.5)[MnMo_9O_(32)]6H_2O的合成及其晶体结构

由ＫＭｎＯ４和（ＮＨ４）６Ｍｏ７Ｏ２４４Ｈ２Ｏ合成了标题化合物Ｋ０．５（ＮＨ４）５．５［ＭｎＭｏ９Ｏ３２］６Ｈ２Ｏ，用ｘ－射线测定了晶体结构．该化合物的晶体属三方晶系，空间群Ｒ３２；ａ＝１５．８４６（４），Ｃ＝１２．３９６（３），Ｍｒ＝１６５７．２８，Ｖ＝２６９５．６３，Ｚ＝３，Ｄｃ＝３．８２ｇ／ｃｍ３，μ＝４１．５ｃｍ－１，Ｆ（０００）＝２９６７．对３０２４个可观测衍射［Ｆ０≥３σ（Ｆ０）］最终偏离因子Ｒ＝０．０３７，Ｒｗ＝０．０４３．结构测定表明：Ｍｎ（Ⅳ）与６个氧配位形成键长相同的ＭｎＯ６八面体，它位于［ＭｎＭｏ９Ｏ３２］６－阴离子的中心，而Ｍｏ（Ⅵ）均与氧原子六配位，形成９个畸变的ＭｏＯ６八面体．     

茴香原生质体培养研究

以茴香（ＦｏｅｎｉｃｕｌｕｍｖｕｌｇａｒｅＬ．）幼苗茎切段在ＭＳ附近２，４－Ｄ１ｍｇ／Ｌ、６－ＢＡ０．５ｍｇ／Ｌ的培养基上诱导产生愈伤组织，经４～５次继代后形成胚性愈伤组织。将胚性愈伤组织转至ＭＳ＋ＮＡＡ１ｍｇ／Ｌ＋２，４－Ｄ０．５ｍｇ／Ｌ＋６－ＢＡ０．２５ｍｇ／Ｌ的液体培养基中培养，形成胚性细胞悬浮系。悬浮细胞在含有１．５％纤维素酶、１％果胶酶、０．５％蜗牛酶的混合酶液中酶解得到大量的原生质体，原生质体用修改的ＫＭ８Ｐ培养基中做液体浅层培养。２天后细胞发生一裂，两个月后形成０．５～１ｍｍ大小的小愈伤组织，转入含琼脂糖的固体培养基中３周后形成２～３ｍｍ的愈伤组织     

利用热带假丝酵母提高酶解马铃薯汁的蛋白质含量

马铃薯汁用糖化酶水解，接种热带假丝酵母，在摇床中３０℃，１２０ｒ／ｍｉｎ培养３ｄ．分别用（ＮＨ４）２ＳＯ４或柠檬酸铵为氮源，用Ｎａ２ＨＰＯ４－ＫＨ２ＰＯ４缓冲液和ＣａＣＯ３为ｐＨ值稳定物质时，测定发酵基质中蛋白质的增加量．结果表明，以（ＮＨ４）２ＳＯ４为氮源，用Ｎａ２ＨＰＯ４－ＫＨ２ＰＯ４缓冲液（０．０２ｍｏｌ／Ｌ，ｐＨ６．８）和ＣａＣＯ３（０．３％）为ｐＨ稳定物质时，发酵基质中蛋白质含量的增加值最大，以干重计，蛋白质含量从１０．４％增加到３９．６％．     

K0.5（NH4）5.5[MnMo9O32].6H2O2的合成及其晶体结构

由ＨＭｎＯ４和（ＮＨ４）６Ｍｏ７Ｏ２４；４Ｈ２Ｏ合成了标题化合物Ｋ０．５（ＮＨ４）５．５「ＭｎＭｏ９Ｏ３２」．６Ｈ２Ｏ用Ｘ－射线测定了晶体结构，该化合物的晶体属三方晶系，空间群Ｒ３２；ａ＝１５．８４６（４），Ｃ＝１２．３９６（３０）Ａ，Ｍｒ＝１６５７．２８，Ｖ＝２６９５．６Ａ＾３，Ｚ＝３，Ｄｃ＝３．８２ｇ／ｃｍ＾３，μ４１．５＝ｃｍ＾－１，Ｆ（０００）＝２９６７和３０２４个可观测衍射「Ｆｐ≥３σ（     

绿色巴夫藻的培养生态条件试验

对绿色巴夫藻ｐａｖｌａｖａｖｉｒｉｄｉｓ进行了生态条件试验，认为该藻能适应光强５００－２５００Ｌｕｘ；适温范围５－３３℃，最适２０－２６℃；密度１．００５－１．０４０ｇ／ｃｍ３，最适１．００５ｇ／ｃｍ３；ｐＨ５－９都可以满足其正常生长，通过单因子和正交试验表明：培养液的较佳配方是在天然海水中加入（ＮＨ２）２ＣＯ－Ｎ２０ｍｇ／ｄｍ３，ＫＨ２ＰＯ４－ｐ１ｍｇ／ｄｍ３，ＦｅＳＯ４－Ｆｅ０．２ｍｇ／ｄｍ３，维生素Ｂ１１ｍｇ／ｄｍ３和维生素Ｂ１２０．００５ｍｇ／ｄｍ３。     

O-HPF和m-HPF氢离解常数的归属

用分光光度法测定了邻羟基苯基萤光酮（Ｏ－ＨＰＦ）与间羟基苯基萤光酮（ｍ－ＨＰＦ）的氢离解常数，结果为： Ｏ－ＨＰＦｐＫ１＝２．７３　ｐＫ２＝５．６２　ｐＫ３＝６．３９　ｐＫ４＝９．５８　ｐＫ５＝１１．１７ ｍ－ＨＰＦ　ｐＫ１＝２．３２ 　ｐＫ２＝５．７０ ｐＫ３＝６．７３ ｐＫ４＝９．１５ ｐＫ５＝１１．２９应用休克分子轨道（ＨＭＯ）法，计算了不同酸度下各离子形态的π电子分布与理论的最大吸收峰波长。这些结果与试剂吸收光谱数据相比较，各级的离解常数获得了归属。     

铀试剂Ⅲ离常数的测定

用 ｐＨ测定法、溶解度法和分光光度法测定了铀试剂Ⅲ的八个离介常数,在离子强度等于０．１时它们分别为： Ｋ１＝１３±１．２; Ｋ２＝（２．４±１．１）×１０－２, Ｈ３＝（９．６±１．１）××１０－４;Ｈ４＝（３．３±０．１）× １０－５;Ｋ５＝（５．４±０．３）×１０－８;Ｋ６＝（１．０±０．２）×１０－９;Ｋ７＝（４．７±０．４）×１０－１１;Ｋ８＝（４．７±０．５）×１０－１３。并根据这些常数作出了试剂离介形式随ＰＣＨ的分布图。     

POM: TNP混合晶体的结构

３－甲基－４－硝基吡啶－１－氧（ＰＯＭ）与２，４，６－三硝基苯酚（ＴＮＰ）的混合晶体从三氯甲烷溶液中生长获得，组成为１∶１，熔点８５℃．采用Ｘ射线衍射法测定ＰＯＭ∶ＴＮＰ混合晶体结构，属单斜晶系，空间群：ｐｎ，ａ＝０．６２４６（４）ｎｍ，ｂ＝１．６０５８（６）ｎｍ，ｃ＝１．５２２８（３）ｎｍ，β＝９５．６２（３）°，Ｖ＝１．５２０（２）ｎｍ３，Ｚ＝４，Ｄｃ＝１．６７ｇ／ｃｍ３，λ（ＭｏＫα）＝０．０７１０６９ｎｍ，μ＝１．４０ｃｍ－１，Ｆ（０００）＝７８４，Ｒ＝０．０５９．结果表明，该晶体中两个不同分子之间存在一个氢键     

3,3‘,5,5’—四甲基联苯胺比色测定铬（Ⅵ）的人工标准色列

本提出了一套人工标准色列用于３，３’，５，５’－四甲基联苯胺（ＴＭＢ）比色测定铬（Ⅵ），该色列以Ｈ２ＳＯ４为介质，以不同含量的Ｋ２ＣｒＯ７，Ｋ４Ｆｅ（ＣＮ）６和Ｋ３Ｆｅ（ＣＮ）６溶液组成，其颜色与ＲＭＢ和铬（Ⅵ）的显色产物相近，使用本色列，铬（Ⅵ）测定范围为０．０１￣０．３０ｍｇ／Ｌ，用本法对电镀废水中的铬（Ⅵ）进行了测定，六次测定的相对标准偏差为３．５％，平均值与ＴＭＢ测定铬（Ⅵ）的分光光度法     

生长调节物质对丹参叶片脱分化及根芽分化的效应

生长调节物质对丹参叶片脱分化及根芽分化效应的研究结果表明：（１）０．５～５．０ｍｇ／Ｌ２，４－Ｄ，０．１～０．５ｍｇ／ＬＮＡＡ０．５～１．５ｍｇ／ＬＩＢＡ或０．２～１．０ｍｇ／Ｌ４ＰＵ－３０诱导叶片的脱分化率高达９７％～１０００％。（２）０．１～０．５ｍｇ／ＬＮＡＡ或０．５～２．０ｍｇ／ＩＢＡ诱导芽化率为９３％～１００％，３种细胞分裂素中，４ＰＵ－３０对叶片芽化最有效，６－ＢＡ和ＫＴ次之。（３）随     

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