溴化苄对二乙基胺甲基膦酸锆的季铵化及三相催化反应

首次制得二乙基胺甲基膦酸锆－亚磷酸锆Ｚｒ（ＨＰＯ＿３）＿（２－ｘ）·（Ｏ＿３ＰＣＨ＿２ＮＥｔ＿２）＿ｘ·Ｈ＿２Ｏ（ＺＤＥＡＭＰ－ＺＰ，ｘ＝０．７５，０．６０，０．５０）．将ＺＤＥＡＭＰ－ＺＰ用溴化苄季铵化，得到部分季铵化的产物：溴化苄基二乙基铵甲基膦酸锆－二乙基胺甲基膦酸锆－业磷酸锆Ｚｒ（ＨＰＯ＿３）＿（２－ｘ）·（Ｏ＿３ＰＣＨ＿２ＮＥｔ＿２）＿（ｘ－ｙ）·（Ｏ＿３ＰＣＨ＿２Ｎ￣＋Ｅｔ＿２·ＣＨ＿２Ｐｈ·Ｂｒ￣－）＿ｙ·Ｈ＿２Ｏ（Ｙ＜Ｘ，ＺＢＤＥＡＭＰＢ－ＺＤＥＡＭＰ－ＺＰ）．ＺＢＤＥＡＭＰＢ－ＺＤＥＡＭＰ－ＺＰ用于进行液／固／液或固固／液三相催化的亲核取代成醚、卤代烃和羧酸盐合成酯及二氯卡宾加成反应，均得到良好的结果。催化剂易于分离和回收，通常回收７０％～１００％，催化剂重复使用１０次以上无明显失活。     

HDPE／NiS和HDPE／Fe_xS导电复合材料

采用表面沉积法制备ＨＤＰＥ／ＮｉＳ和ＨＤＰＥ／Ｆｅ＿ｘＳ复合材料．用扫描电子显微镜、Ｘ光电子能谱、光电流光谱、穆斯堡尔谱等方法对其表面形貌和组成进行了表征。经测量ＨＤＰＥ／ＮｉＳ表面电阻率可达１０￣１Ω左右；ＨＤＰＥ／Ｆｅ＿ｘＳ表面电阻率可小至１０￣２Ω左右。     

1—苯基—3—甲基—4—（α—呋喃甲酰基）—5—吡唑酮与中性萃取剂协同萃取钇（Ⅲ）的研究

本文研究了１－苯基－３－甲基－４－（α－呋喃甲酰基）－５－吡唑酮（ＨＡ）单独萃取Ｙ（Ⅲ）及其与二苯亚砜（ＤＰＳＯ），磷酸三丁酯（ＴＢＰ）或三辛基氧膦（ＴＯＰＯ）协同萃取Ｙ（Ⅲ）的行为。确定了萃合物的组成分别为ＹＡ＿３，ＹＡ＿３·ＤＰＳＯ，ＹＡ＿３·ＴＢＰ和ＹＡ＿２（ＮＯ＿３）·２ＴＯＰＯ．算得萃取平衡常数分别为：ｌｏｇＫ＿（Ａ（ＨＡ））＝－６．８６，１ｏｇＫ＿（ＡＢ（ＨＡ＋ＤＰＳＯ））＝－３．８９，ｌｏｇＫ＿（ＡＢ（ＨＡ＋ＴＢＰ））＝－２．５３和ｌｏｇＫ＿（ＡＢ（ＨＡ＋ＴＯＰＯ））＝５．１３．     

Sb＿2O＿3－ZnSn（OH）＿6－ZnNH＿4PO＿4阻燃体系的研究

研究了在聚氯乙烯（ＰＶＣ）中，Ｓｂ＿２Ｏ＿３－ＺｎＳｎ（ＯＨ）＿６，Ｓｂ＿２Ｏ＿３－ＺｎＮＨ＿４ＰＯ＿４，ＺｎＳｎ（ＯＨ）＿６－ＺｎＮＨ＿４ＰＯ＿４二元体系的协同阻燃性能，以及Ｓｂ＿２Ｏ＿３－ＺｎＳｎ（ＯＨ）＿６－ＺｎＮＨ＿４ＰＯ＿４三元系的阻燃性能，采用混料回归实验设计，导出了三元系氧指数与阻燃剂含量关系的数学模型，经计算机计算并绘制出了氧指数等值图，该体系中Ｓｂ＿２Ｏ＿３－ＺｎＳｎ（ＯＨ）＿６，Ｓｂ＿２Ｏ＿３－ＺｎＮＨ＿４ＰＯ＿４复配具有正的协同作用，而ＺｎＳｎ（ＯＨ）＿６－ＺｎＮＨ＿４ＰＯ＿４复配则表现为负的协同作用。     

高原型和山谷型藏山羊生态特征比较研究

对高原型和山谷型藏山羊的体态、被皮、解剖、生理和生化遗传标记等生态特征的比较研究表明：高原型比山谷型藏山羊体格较大；毛被白色者较多、毛丛较长、单位皮肤面积次级毛囊较多，产线量高；气管、肺和心脏较发达；血液中ＲＢＣ、ＷＢＣ、Ｈｂ均较高；体温、皮温均较低，两型藏山羊的Ｈｂ、Ａｌｂ、Ａｍ经电泳均显示一条带，无多态性，高原型藏山羊的Ｔｆ有３种基因型，即ＡＡ、ＡＢ、ＢＢ，而山谷藏山羊Ｔｆ只有两种基因型，即ＡＡ、ＡＢ。基因频率经ｘ检验差异不显著（Ｐ＞０．０５）。两型藏山羊的ＡＫＰ同工酶均有两种基因型，即ＡＫＰＦ和ＡＫＰＯ，ＡＫＰ基因频率经ｘ检验差异不显著（Ｐ＞０．０５），不论是高原型还是汕谷型藏山羊的ＥＳ同工酶均有多态性，都有３个带，但两者的Ｅ＿ｓ同工酶带有明显差异，区带－Ⅱ－２、带－Ⅲ－３、带－Ⅱ－４、带－Ⅲ－２对应比较，差异极显著（＞０．０１）；带－Ⅰ－１、带－Ⅰ－３、带－Ⅲ－１对应比较差异显著（Ｐ＜０．０５），高原型和山谷型山羊的ＬＤＨ同工酶均有５条带，其活力顺序均为ＬＤＨ＿１＞ＬＤＨ＿３＞ＬＤＨ＿２＞ＬＤＨ＿５＞ＬＤＨ＿４，各带对应比较，两个生态类型藏山羊间ＬＤＨ＿１、ＬＤＨ＿２活力差异极显著（Ｐ＞０．０１）；     

亚砜类萃取剂萃取铀(Ⅵ)的研究

研究了在稀释剂甲苯中石油亚砜（ＰＳＯ）、二正辛基亚砜（ＤＯＳＯ）、二（２－乙基己基）亚砜（ＤＥＨＳＯ）、十二烷基对甲苯基亚砜（ＤＴＳＯ）、２－乙基己基对甲苯基亚砜（ＥＨＴＳＯ）、二苯基亚砜（ＤＰＳＯ）等亚砜类化合物对铀（Ⅵ）的萃取,其萃取能力按ＰＳＯ＞ＤＯＳＯ＞ＤＥＨＳＯ＞ＤＴＳＯ＞ＥＨＴＳＯ＞ＤＰＳＯ的顺序变化．求出了萃取反应的焓变,考察了硝酸浓度、萃取剂浓度、盐析剂浓度、络合阴离子（Ｃ２Ｏ２－４）浓度、温度对萃取平衡的影响．     

MPEG-2 DCT系数码表的优化

给出了一种优化ＭＰＥＧ－２ 的ＤＣＴ系数码表＿ ０／１ 的方法．其基本思路是：在ＥＯＢ码字后添加一个附加比特引入一个附加的ＦＬＣ码表,用此ＦＬＣ码表取代现有ＭＰＥＧ－２ 的ＤＣＴ 系数码表＿ ０／１ 中较长的ＶＬＣ码字．结果表明,此方法可在压缩性能及运算量两方面对ＤＣＴ系数码表＿ ０（ＰＳＮＲ＝ ２７～４０ ｄＢ）及ＤＣＴ系数码表－ １（ＰＳＮＲ＝ ３０～４０ ｄＢ）实现优化,ＰＳＮＲ值越高,优化效果越显著．     

从含有大量Ag（Ⅰ）和Cu（Ⅱ）的HNO＿3溶液中分离In（Ⅲ）的方法研究

利用二－（２－乙基已基）磷酸（ＨＤＥＨＰ）、异丙醚和乙醚溶剂萃取Ｉｎ（Ⅲ），并测定了Ｉｎ（Ⅲ）在有机相和水相之间的分配比．Ｉｎ（Ⅲ）在ＨＤＥＨＰ－ＨＮＯ＿３、ＨＤＥＨＰ－ＨＣｌＯ＿４和异丙醚－ＨＢｒ体系中的化学产额依次为９５．２％，９１．７％和８９．２％，在１ｍＬ的ＩｎＣｌ＿３医用放射性核素制剂中，Ｃｕ，Ｆｅ和Ａｇ杂素元素的含量依次不大于０．０４μｇ，０．１５μｇ和２．１μｇ。     

杂多蓝型电荷转移配合物（C_8H_12N_2）_5H_7PMO_12O_40的

以Ｈ＿７［ＰＭＯ＿８ⅥＭｏＯ＿４ⅤＯ＿４０］·１２Ｈ＿２Ｏ为原料与对氨基二甲苯胺（Ｃ＿８Ｈ＿１２Ｎ＿２）反应合成了一种新型杂多蓝型电荷转移配合物（Ｃ＿８Ｈ＿１２Ｎ＿２）＿５Ｈ＿７ＰＭＯ＿１２Ｏ＿４０，并通过元素分析，ＩＲ、ＵＶ、ＸＰＳ、ＥＳＲ等手段对其进行了表征．发现在该化合物中杂多阴离子部分依然保持Ｋｅｇｇｉｎ结构，还发现在多电子的杂多蓝与芳香有机物对氨基二甲苯胺之间发生了显著的电荷转移．这种电荷转移被认为是所合成的化合物具有很大三阶非线性光学性质的理论根据．利用Ｚ－扫描技术在保持入射光强Ｉ＿０＝２．３８×１０￣１３ω／ｍ￣２，波长λ＝５３２ｎｍ条件下，测定了浓度为４．６８×１０（－６）ｍｏｌ·ｄｍ（－３）的（Ｃ＿８Ｈ＿１２Ｎ＿２）＿５Ｈ＿７ＰＭｏ＿１２Ｏ＿４０的ＤＭＳＯ溶液的三阶非线性光学系数ｘ（３），测得△Φ＝－４．１１，ｘ（３）＝－２．６１×１０（－１０）ｅｓｕ，为当今无机、有机材料中的优秀值．     

NdCl＿3－SrCl＿2－CaCl＿2三元体系相图的研究

借助ＤＴＡ研究了ＮｄＣｌ＿３－ＳｒＣｌ＿２－ＣａＣｌ＿２三元体系相图。发现该体系内有对应于ＮｄＣｌ＿３、Ｓｒ＿３ＮｄＣｌ＿９、α＿１和α＿２的５个液相面，６条二次结晶线，一个三元低共熔点Ｅ（４７．０％ＮｄＣｌ＿３，２４．５％ＳｒＣｌ＿２；５６２°Ｃ）和三元转熔点Ｐ（４３．４％ＮｄＣｌ＿３，２５．３％ＳｒＣｌ＿２；５８７°Ｃ）．试用极化与反极化概念探讨了含稀土相图、化合物生成及其稳定性变化的规律。     

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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-