麦饭石的溶出性能及其影响因素(Ⅱ)

为了解决如何使得麦饭石中微量元素溶出量达到最佳这一问题,采用室内分析方法,研究了麦饭石溶出性能的影响因素,研究发现麦饭石母岩经过风化作用后,原生的铝硅酸盐矿物变成白色细鳞片状绢云母.Na 、Mg2 、Ca2 等离子从硅铝酸盐矿物中析出,K 、CO32-等离子进入矿物内部,这就是麦饭石能溶出大量的常量元素的原因.随着浸泡温度的提高以及对麦饭石进行活化处理等,麦饭石矿物中元素的溶出能力将会得到提高.该研究对麦饭石矿产资源的进一步开发利用具有一定的参考价值和指导意义.     

超声波在麦饭石水制备中的作用分析

为了研究超声波在麦饭石水制备过程中的作用,采用感应耦合电浆放射光谱仪(ICP-OES)记录不同时间普通接触池和超声波接触池水中麦饭石元素的溶出变化.实验结果表明:超声波对麦饭石中矿物元素的溶出有一定促进作用;麦饭石中矿物元素溶出的效果随超声波功率和频率的改变而发生变化;超声波功率对麦饭石中矿物元素溶出影响较大.     

麦饭石及其系列产品

麦饭石是一种天然药石,因其状如一团麦饭而得名。唐、宋、明代的医药学家在他们的医著中对麦饭石均有详细记载。后来经岩石分类学家们研究确定,麦饭石属于泛花岗岩类(Granite)岩石,即黑云母石英二长斑岩(Black mica quartz monzonite porp、hyry)。麦饭石在世界各地分布较广,主要产地有中国(包括台湾)、日本、南朝鲜等地。经矿物元素分析,测得麦饭石含有约59种元素,包括18种人体营养所必需的矿物质和微量元素,质量以内蒙古平顶山的中华麦饭石     

一些重要含铝矿物的酸溶性能与物相结构关系的研究

通过化学分析、Ｘ－射线衍射，差热分析和溶出率测定等方法对我国不同产地的一些重要含铝矿物的酸溶性能及其物相组成进行了比较研究。结果表明：三水铝石型矿物在通常条件下直接溶出时，一水软铝石型矿物、粘土型矿物经焙烧后溶出时，其氧化铝溶 均较高；一水硬铝石型矿物焙烧后经固结保温二次溶出时其氧化铝溶出率可达９０％以上，这些矿物可用作制备硫酸铝，氯化铝和聚合氯化铝的原料。     

模拟酸雨对鹤山赤红壤风化过程的影响

对鹤山赤红壤进行模拟酸雨野外淋溶实验的结果表明，供试土壤对pH≥3．0的处理具有较强的缓冲能力，淋滤液pH在全过程中可保持pH≈6．0。土壤系统对K^＋、Na^＋极强的净吸收作用导致二者淋失浓度在处理的中、后期为负值，显著低于Ca^2＋及Mg^2＋。在pH≥3．5处理下，土壤次级缓冲体系可使盐基离子总淋失浓度维持在一定水平。铝仅在pH≤3．0处理时溶出，在淋滤液pH≈4．5时溶出明显，可能的缓冲机制来自土壤对SO4^2-的吸附、次生矿物风化缓冲作用等。硅的淋失在pH≤3．5处理下差异不大，说明矿物风化缓冲机制在处理的全过程中都起了作用。鹤山赤红壤尚处在SO4^2-吸附阶段，对酸沉降仍有一定的缓冲能力。     

麦饭石调节溶液pH值的影响因素

为了寻求麦饭石调节溶液pH值作用最佳效果,采用室内试验方法,研究了麦饭石调节溶液pH值作用的影响因素,发现经风化作用后的麦饭石调节溶液pH值作用效果优于未风化的麦饭石。风化后的麦饭石中的Al3+易于从硅酸盐矿物中析出,是麦饭石能调节溶液pH值并优于未风化的麦饭石原因。随着麦饭石粒度的减小其调节溶液pH值作用能力提高。该研究对麦饭石矿产资源的进一步开发利用具有一定的参考意义。     

地层碱化的试验研究

提出了地层碱化的新措施，研究了与本措施有关的岩石的碱溶和沉积，原油的乳化和玻乳两个问题。用溶液元素分析法研究了静态条件下岩石碱溶规律，得出矿物碱溶顺序为：蒙脱石－高岭石－伊利石－正长石－石英－绿泥石，这表明碱化适宜地层为高粘土含量的高温低渗砂岩地层。     

麦饭石调节溶液pH值的影响因素

为了寻求麦饭石调节溶液pH值作用最佳效果,采用室内试验方法,研究了麦饭石调节溶液pH值作用的影响因素,发现经风化作用后的麦饭石调节溶液pH值作用效果优于未风化的麦饭石.风化后的麦饭石中的Al3+易于从硅酸盐矿物中析出,是麦饭石能调节溶液pH值并优于未风化的麦饭石原因.随着麦饭石粒度的减小其调节溶液pH值作用能力提高.该研究对麦饭石矿产资源的进一步开发利用具有一定的参考意义.     

麦饭石在茶叶饮料中的功用初探

麦饭石是一种矿物药，由于其特殊的结构，它对微生物、重金属有明显的吸附作用，麦饭石含有丰富的矿物质并具良好的溶解性。这些特性使麦饭石在饮料，酿酒，食品保藏、水质净化、养殖业、农业栽培方面的应用取得了可喜的效果。在文以实验为基础，就麦饭石在茶叶饮料的色、香、味及防腐和协同转溶方面的作用进行初步探索。     

高钙固硫粉煤灰水热条件下元素的溶出机制

试验用比色法和原子吸收法等分析手段系统地研究了粉煤灰-H2O、粉煤灰-NaOH-H2O、粉煤灰-Ca(OH)2-H2O 3个系统在不同水热条件下Al、Sl、Ca元素溶出浓度。结果表明：温度、反应时间和OH^-的浓度是影响离子渗出的主要因素；计算了不同粉煤灰-Ca(OH)2-H2O系统在100℃、12h条件下SiO2的溶出率，高钙固硫粉煤灰中SiO2的溶出率高于普通粉煤灰，用SiO2的容出率可以表征粉煤灰的活性；粉煤灰与Ca(OH)2的水热反应，可能是一个原地化学反应。     

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.     

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.     

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.     

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.     

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。     

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.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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