贵州富锌硒茶产区地质环境条件与土壤元素地球化学特征

通过对贵州不同区域典型茶园进行野外调查,在每个茶叶主产区选择代表性的茶园进行土壤剖面样品采集,探讨贵州富锌硒茶产区地质环境条件与土壤元素地球化学特征。结果表明:贵州茶叶主产区成土母岩及土壤中主要元素含量水平存在明显的区域差异,富锌硒茶产区成土母岩中S、Ca、Fe、P、Mo含量均明显高于非富锌硒茶产区,其次是Zn、Se、Cu;而对应土壤中Mo、Cu、Mn、Zn、Fe、Ca含量均显著大于非富锌硒茶产区,其次是Se、Mg、P、S、Al。成土母岩的Zn、Se含量直接影响茶园土壤中Zn、Se的含量水平,土壤Zn、Se含量还受其他元素含量的影响,土壤Zn含量与Al、Fe、Ca、Mg、Mn、Mo含量之间达到极显著正相关,而土壤Se含量与Al、Fe、Cu、Mg、P、S含量存在极显著正相关。贵州境内富锌硒茶产区地质环境条件与土壤元素地球化学组成存在明显的空间异质性。     

简阳大耳山羊粪尿中微量元素测定

分析简阳大耳山羊不同年龄、不同性别组微量元素变化情况,为简阳大耳山羊粪尿处理及制订饲养标准提供参考.按性别、年龄分成四组,并运用ICP-OES测量山羊粪尿中微量元素Fe、Cu、Zn、Mn、Se、Co、Sn、V、Ni含量,成年组山羊粪中微量元素Fe、Cu、Zn,Ni低于1岁山羊组幼年组山羊(P＜0.01),Mn、Se、Co、Sn、V显著低于幼年组(P＜0.05);Mo无显著差异.成年组山羊尿中微量元素含量Fe、Cu、Zn、Sn低于幼年组(P＜0.01).Mn、Se、Co、V、Ni显著高于幼年组(P＜0.05),Mo无显著差异.公山羊组粪中Fe、Mn、Zn、Se、Sn、Ni高于母山羊组(P＜0.01);Cu含量后者高于前者(P＜ 0.01); Mo、Co、V含量高于后者(P＜0.05);公山羊尿中微量元素含量Fe、Cu、Mn、Zn、Sn、Ni含量均低于母山羊(P＜0.05); Mo、Co无显著差异.结论,不同年龄、性别间简阳大耳山羊粪、尿中微量元素含量差异较大.     

大鼠血浆心钠素含量和微量元素相关的实验研究

本文报导大鼠循环血心钠素(ANP)含量和几种微量元素的水平。结果表明:锌组血浆ANP明显高于铜组和对照组(P<0.001),而铜组低于对照组(P<0.05)。血清铜含量以铜组高于锌组。和对照(p<0.05);血清锌含量从锌组高于铜组。铜组ANP与血清Cu呈显著负相关。锌组ANP与血清Zn呈显著正相关。同时还测定血清硒和锂。本实验已显示四种微量元素与ANP有一定相关。     

极量运动对小鼠骨胳肌八种元素含量的影响

利用高频电感耦合等离子体原子发射光谱法（ICP－PES）测定了小鼠极量运动（一次性衰竭游泳运动）后，骨骼肌内锌（Zn）、铜（Cu）、铁（Fe）、猛（Mn）、硒（Se）、钼（Mo）6种微量元素及钙（Ca）、镁（Mg）2种宏量元素含量的变化。结果表明，极量运动后可使骨骼肌内Se含量上升，Ca，Mg含量则明显下降。为进一步研究极量运动地运动员骨胳微量、宏量元素含量的影响提供了参考，对运动员合理补充微量元素提供了科学的依据。     

血清微量元素铜、铁、锌与尤文氏肉瘤关系的研究

探讨尤文氏肉瘤患者血清中必需微量元素铜(Cu)、铁(Fe)、锌(Zn)的含量变化及临床意义。分别收集尤文氏肉瘤患者(实验组)及健康体检者(对照组)30例,采用化学比色法测定血清Cu、Fe和Zn数值,采用T检验比较两组之间的关系。与对照组对比,实验组患者血清中Cu升高(P0.01),Te降低(P〈0.01),Zn降低(P0.01),差异有统计学意义。尤文氏肉瘤患者血清中Cu、Fe、Zn三种微量元素的含量有变化,与尤文氏肉瘤的发生、发展密切相关,对于肿瘤的预防有重要意义;同时加强微量元素的测定,有助于对肿瘤的辅助诊断。     

有氧运动介导的糖尿病大鼠肾脏微量元素变化及其与自由基代谢的相关性

探讨有氧运动对2型糖尿病大鼠肾脏微量元素、SOD、MDA的影响及其相关性.40只雄性Wistar大鼠,以高脂高糖饲料喂养28 d,从中随机选取10只为对照组(NC,n=10),其余大鼠腹腔注射STZ诱导2型糖尿病,后随机分为2组:糖尿病对照组(DM,n=8)、糖尿病运动组(DS,n=8).DS组大鼠以25 m·min~(-1),30 min·d~(-1)和6 d·(7 d)~(-1)下持续运动56 d.实验末,测试肾脏组织SOD活性及MDA和微量元素Fe,Zn,Cu,Mn,Cr的含量.结果表明,与NC组比较,DM组大鼠Fe,Zn,Mn,Cr含量及SOD活性极显著降低(P0.01),Cu及MDA含量极显著升高(P0.01);与DM组相比,DS组Fe,Zn,Mn,Cr及MDA含量显著下降(P0.05),SOD活性显著升高(P0.05),Cu含量极显著降低(P0.01).SOD活性与Zn,Cr呈正相关(P0.05),与Mn呈显著性正相关(P0.01);MDA含量与Zn呈负相关(P0.05),与Cu呈正相关(P0.05).结果暗示,有氧运动通过纠正微量元素Zn,Cu,Mn,Cr代谢紊乱,显著提高2型糖尿病大鼠肾脏抗氧化水平,从而减低血糖,改善机体糖代谢.     

复合锌硒片对尘肺患者血清脂质过氧化水平和微量元素的影响

目的探讨复合锌硒片对尘肺患者血清脂质过氧化水平及微量元素含量的影响.方法将80例单纯Ⅰ期尘肺患者分成治疗组和对照组,治疗组在内科常规治疗基础上加用复合锌硒片治疗3个月.测定服药前、服药1个月后血清SOD,MDA的含量及微量元素锌、硒及铜的含量.结果对照组患者治疗前后血清SOD活力、MDA及硒、锌、铜含量差异无显著性(P0.05),而治疗组患者治疗后血浆SOD活力显著升高,MDA含量降低,微量元素锌、硒含量增高,与治疗前差异有显著性(P0.01),与对照组治疗后相比也有显著性差异(P0.01).结论复合锌硒片能调整体内微量元素比例,提高尘肺患者抗氧化作用,可用于尘肺病的辅助治疗.     

日粮钙磷含量及比例对大鼠肝组织微量元素的影响

目的探讨钙磷含量及比例对大鼠肝组织微量元素含量的影响。方法将1月龄清洁级Wistar雄性大鼠随机分成7组,每组10只,饲喂7种不同钙磷含量的试粮,试验期42 d。结果相同磷进食水平下,肝铜、肝锰含量在不同钙磷比之间无显著性差异(P>0.05);肝铁含量随日粮钙水平的提高而显著下降(P<0.05);肝锌、肝镁含量在低钙组与高钙组之间存在显著性差异(P<0.05)。相同钙进食水平下,钙磷比4.0∶1组(低磷)的肝铜含量显著高于其它两组(P<0.05);肝铁、肝锰含量在三组之间存在显著性差异(P<0.05)。相同钙磷比水平下,高钙高磷组的肝铁、锰、镁含量明显低于其它组(P<0.0 5)。结论钙影响肝铁、锌、镁的含量,对铜、锰影响不明显。磷影响肝铜、铁、锰的含量,对锌、镁影响不明显。钙磷比为4.0∶1(Ca 1.00%,P 0.25%)时肝中微量元素含量最高,而钙磷比为1.2∶1(Ca 3.00%,P 2.50%)时肝中微量元素含量最低。     

兰州市哺乳期妇女初乳与产后三个月乳汁中几种元素比较分析

比较分析兰州地区产妇产后3个月乳汁与初乳中的钙、铜、铁、镁、锌等多种微量元素的含量变化。收集352例产妇产后3个月的母乳与其初乳标本,采用原子吸收光谱法测定其中所含的钙(Ca)、铜(Cu)、铁(Fe)、镁(Mg)、锌(Zn)、钾(K)与钠(Na)的含量,得出了兰州地区产妇产后3个月母乳中与初乳中钙(Ca)、铜(Cu)、铁(Fe)、镁(Mg)、锌(Zn)、钾(K)与钠(Na)元素的参考范围,并且对其差异性进行了比较分析。兰州地区产妇产后初乳中所含的铜(Cu)、镁(Mg)、锌(Zn)、钾(K)与钠(Na)元素的含量均极显著或显著高于其产后3个月的乳汁中的含量(P0.01),钙(Ca)、铁(Fe)差异不显著(P0.05)。兰州地区产妇初乳中所含的微量元素含量明显高于产后3个月,因此,建议随着产妇生产后时间的推移,应定期检测乳汁微量元素,以保证婴幼儿健康成长。     

钝顶螺旋灌对五种元素生物富集作用的研究

研究不同浓度的Fe2 ,Mn2 ,Cu2 ,Zn2 ,Se对钝顶螺旋藻富集量的影响,结果表明,螺旋藻对环境中的这些金属离子的均具有较强的富集能力,在Fe2＋浓度对21．9mg/L,Mn2浓度1．65mg/L,Cu2 浓度0．1mg/L,Zn2 浓度1．49mg/L,Se浓度100mg/L,螺旋藻对它们的富集率最大,在1g干藻粉中其含量分别达到,铁2．7mg,锰31．9ug,铜12．46ug,锌212ug,硒408ug.     

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