钛的氯化物化学气相沉积TiN热力学

应用物质自由焓函数法（函数法）及化学反应平衡常数Ｋｐ，对ＴｉＣｌ２，ＴｉＣｌ３和ＴｉＣｌ４的生成反应以及它们与Ｎ２和Ｈ２反应化学气相沉积ＴｉＮ的热力学进行了计算与分析。结果表明，用ＴｉＣｌ３与Ｎ２和Ｈ２的气相反应，能在较低温度下获得ＴｉＮ，为低温化学气相沉积ＴｉＮ提供了理论依据     

高温气溶胶反应器中制备纳米TiO2颗粒的形态和结构

在高温管式气溶胶反应中,利用ＴｉＣｌ４,气相氧化制备纳米ＴｉＯ２颗粒,研究了ＴｉＯ２颗粒的形态和结构特征,实验结果表明氧气预热温度升高,ＴｉＯ２粒子粒径减小,分布变窄,反应气氛中加入ＡｌＣｌ３后ＴｉＯ２粒变得圆整,ＴｉＯ２粒径随ＡｌＣｌ３用量增加而减小,粒子中金红石含量随ＡｌＣｌ３用量增加而增大,反应温度升高时ＴｉＯ２粒子粒度增大,但金红石含量在反应温度为１２００℃时出现最大值,控制反应温度为１１     

Ti2O3的气固合成研究

采用ＴｉＯ２作为原料与载带氯化钛的氢气高温合成单相Ｔｉ２Ｏ３．研究了氢气的一，载带物的种类，载带物量，固气反应温度，反应时间等对产物物相的影响，产物经ＸＲＤ谱分析结果表明，合成单相Ｔｉ２Ｏ３的较好实验条件是：氢气流量９０ｍＬ／ｍｉｎ，载带物为ＴｉＣｌ４（２５℃），反应时间４ｈ．     

用TiCl_3低温化学气相沉积TiN的实验研究

运用热力学对用ＴｉＣｌ３为钛源在低温下化学气相沉积ＴｉＮ的可行性进行了论证，着重介绍了实验研究及实验结果。在所设计的ＴｉＣｌ３生成以及ＴｉＮ形成的实验装置上，通过对ＨＣｌ（ｇ）与ＮＨ３的流量和沉积总压强的调节与控制，在较低的温度（５５０℃）下，在钢基材料上获得了ＴｉＮ表面涂层。此研究旨在推动钢制工模具低温化学气相沉积ＴｉＮ涂层的应用     

TiCl4穿透曲线和吹扫曲线的测定

以Ｎ２气为截气携带ＴｉＣｌ４通过γ－Ａｌ２Ｏ３床,使ＴｉＣｌ４吸附在γ－Ａｌ２Ｏ３表面上,测定ＴｉＣｌ４的穿透曲线和吹扫曲线。     

TiCl_4穿透曲线和吹扫曲线的测定

以Ｎ_Ｚ气为载气携带 ＴｉＣｌ_4通过γ－Ａｌ_２Ｏ_３床,使ＴｉＣｌ_４吸附在γ－Ａｌ_２Ｏ_３表面上．测定 ＴｉＣｌ_４的穿透曲线和吹扫曲线．     

氧化物陶瓷与Ag－Cu－Ti钎料的界面反应

研究了氧化铝和氧化铬陶瓷真空钎焊时陶瓷与Ａｇ－Ｃｕ－Ｔｉ钎料合金的界面反应，分析了加热温度（１０７３～１３２３Ｋ）和保温时间（０～３．６ｋｓ）对界面反应的影响规律，扫描电镜和Ｘ射线衍射分析结果表明：两种陶瓷均与Ａｇ－Ｃｕ－Ｔｉ合金发生反应，反应层厚度随着温度和时间的增加而增加，对于氧化铝陶瓷，低子１１２３Ｋ时，反应产物为Ｃｕ２Ｔｉ４Ｏ和ＡｌＴｉ；在１１７３Ｋ以上温度时反应产物则为Ｔｉ２Ｏ、ＴｉＯ和ＣｕＴｉ２，此时，反应层是按Ａｌ２Ｏ３／Ｔｉ２Ｏ＋Ｔｉ０／Ｔｉ２Ｏ＋ＴｉＯ＋ＣｕＴｉ２／ＣｕＴｉ２／Ａｇ－Ｃｕ呈层状过渡分布，对于氧化锆陶瓷，在整个试验温度范围，反应产物均为γ－ＡｇＴｉ３和δ－ＴｉＯ，反应产物也是按ＺｒＯ２／δ－ＴｉＯ／δ－ＴｉＯ＋γ－ＡｇＴｉ３／γ－ＡｇＴｉ３／Ａｇ－Ｃｕ呈层状过渡分布的．     

辅助加热PCVD—TiN薄膜的制备及影响因素

研究了反应气体对辅助加热ＰＣＶＤ－ＴｉＮ薄膜制备的影响,结果表明,提高反应气体中ＴｉＣｌ４的含量可以提高薄膜的沉积速率,而且对薄膜内的氯含量没有影响。提高反应气体中的Ｖ（Ｈ２）／Ｖ（Ｎ２）可以略低薄膜内的氯含量,在Ｖ（Ｈ２）／Ｖ（Ｎ２）＝２,ＴｉＣｌ４的体积分数为１０％左右时ＴｉＮ薄膜的硬度最高,随着反应气压的升高,沉只速率呈正比上升而显著硬度却下降。     

精轧工艺参数对Ti-IF钢第二相粒子析出行为的影响

通过采用新型的热模拟技术研究表明，不同精轧总变形量和道次变形分配量对ＴｉＣ相粒子析出行为均有较大的影响，而对于ＴｉＮ，ＴｉＳ和Ｔｉ４Ｃ２Ｓ２这３种较粗大的析出物影响不大，两者之间合理配置将有利于形成粗大、稀疏的ＴｉＣ粒子。     

含氧和氮的四氯化钛络合物催化双环戊二烯开环移位聚合 …

报道了ＴｉＣｌ４．２「Ｃ６Ｈ８Ｏ」（１）;ＴｉＣｌ４．２「Ｃ８Ｈ１１Ｎ」（２）;ＴｉＣｌ４．２「Ｏ（ＣＨ２）４ＣＨ２」（３）．ＴｉＣｌ４．２「Ｃ６Ｈ７Ｎ」（４）ＴｉＣｌ４．２「Ｃ５Ｈ５Ｎ」（５）;ＴｉＣｌ４．２「Ｃ４Ｈ８９Ｏ２」（６）催化双环戊二烯开环移位聚合反应并对６个影响因素进行了讨论,由此得到优化的反应条件。     

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.     

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     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with