治疗高血压病中草药中微量元素的主成分分析

采用主成分分析法对7种治疗高血压的中草药中的微量元素进行分析,获得治疗高血压的中草药中微量元素之间的相关关系,并对这7种中草药进行了综合排名,得到了7种中草药的质量优劣,分析总结出了微量元素的作用,研究对治疗高血压中草药的研发提供一定的理论依据。     

解表类中草药中微量元素的主成分分析

通过SPSS13.0软件对解表类中草药中的微量元素进行主成分分析,得到了解表类中草药微量元素间的相关矩阵、特征值及方差贡献率,并对中草药的质量做了综合评价,这为中草药的研究提供了一定的理论依据,可以帮助我们更好的研究分析中草药中微量元素的作用,同时对解表类中草药的质量优劣作出科学的评价.     

治疗胆结石类中草药中微量元素的主成分分析

通过SPSS13.0软件对中草药中的微量元素进行主成分分析,获得微量元素之间的一些内在关系.通过主成分分析可以评价中草药的质量优劣,找到微量元素与人体健康的联系,从而为中草药的机理研究提供一定的理论基础.     

清热解毒类中草药的微量元素特征分析

运用主成分分析法对13种清热解毒类中草药中的6种微量元素进行分析,证实了微量元素的含量与清热解毒类中草药的疗效之间存在相关性.此研究为以后清热解毒类中草药的开发利用提供了科学的依据和理论基础.     

五味中草药中微量元素的综合评价

对五味中草药中微量元素进行分析,通过主成分分析的方法对中草药中微量元素进行综合评价,通过因子分析微量元素K、Ca、Mg、Cu、Zn、Fe、Mn等7种元素的功效,结果表明:这些元素与中药的药理作用有相关性.     

四种云南产菊科中草药微量元素的研究

根据中草药初级形态分析的要求，对四种云南产菊科中草药进行微量元素研究，测定微量元素的含量、提取率、残留率及浸留比。结果表明，微量元素的含量与微量元素的提取率不一定成正比。为探讨中草药作用机制，指导中医辩证用药，强化已有复方或为复方的改性、开发新药提供信息。     

11种中草药中8种元素的ICP—AES测定

微量元素与人体免疫、内分泌、生长发育和神经系统的功能等密切相关。近十几年来,人们对中草药中微量元素的分析,以及中草药中微量元素与疾病、药效之间的关系,给予了极大的注意。鉴于此,我们对常用的几种中草药:当归、何首乌、党参、黄芪、白术、山药、肉桂、白芍、黄岑、牛黄、天麻等,采用ICP—AES法进行了铜、锌、锰、铁四种微量元素和钙、镁、钾、磷     

解表类中草药中微量元素的因子分析研究

应用因子分析的方法研究了解表类中草药中微量元素之间的关系.结果表明,一个二因子的模型能够合理地解释微量元素间的相关关系;其因子得分可用于解表类中草药的分类,证实了微量元素含量与解表类中草药疗效之间存在相关性.这些研究为以后解表类中草药的开发利用奠定了基础.     

丹参等十一种中草药中微量元素的测定及其药效分析

近年来的研究发现,中草药中微量元素可能具有某些生理活性。为了探索微量元素与药效的关系,我们对十一种中草药,即丹参,太子参、淫羊藿、白芍药、狗脊、槟榔、茯苓、熟地黄、大黄、红花、黑附子,采用原子吸收分光光度法进行了铜、锌、锰、铁、镁、钙六种元素的含量测定,并对微量元素与疾病、药效的关系作了探讨。     

8种中草药中8种微量元素的主因子分析

运用因子分析法研究了8种中草药中8种微量元素的含量,提取占总方差的75％的2个主因子,并对主因子作出了合理的解释．结果表明,影响8种中草药特征的有2个主因子,为进一步探讨微量元素与中药药效的关系提供了科学依据．     

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.     

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.     

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.     

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.     

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.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.