鄂西北区域滑坡形成影响因子及组控模型研究

以鄂西北竹山县浅变质岩区267个滑坡为研究对象,在构建区域滑坡形成影响因子体系的基础上,运用综合贡献率统计方法,对滑坡形成的11个静态本底因子和3个动态诱发因子的敏感性要素进行了分析。采用量化赋值与主成分分析相结合的方法,得出各静态本底因子的影响权重以及6个主控因子;同时构建了基于主成分分析定权的滑坡形成影响综合评价模型。最后提出滑坡形成过程中基于地质因素的静态本底主控因子和基于环境因素的动态诱发因子的组控模型。为区域滑坡孕灾机理及滑坡风险分析等提供一定依据。     

基于主成分分析法的10kV配网评价

主成分分析法是通过数学降维将多个因子转化为几个相互独立且包含原因子大部分信息量的综合变量。这些变量之间相互独立,不受主观因素影响,具有较好的客观性,有利于开展分析评价。该文采用主成分分析法,通过公变总数、公变总容量、负载率30%~80%的公变数量、10 k V线路总数、10 k V线路长度、负载率30%~70%的10 k V线路数量、有10 k V出线的变电站数量这7个配网水平主要影响因子建立10 k V配网水平评价模型,作为对其进行分析,形成10 k V配网水平评价模型。     

杂交水稻亲本材料的产量主成分分析及品质鉴定

为了了解当前长江上游地区杂交水稻亲本材料的产量综合表现以及对其稻米品质的评价,试验利用长江上游地区广泛应用的76份水稻亲本材料,调查了15个产量相关性状,同时对这些水稻的品质特性也进行了测定.结果表明,供试材料的单株产量与其中10个产量相关性状达到了显著或极显著水平;主成分分析表明在产量相关性状中共提取了4个主成分,分别为产量因子、粒型因子、结实率因子、结实率和粒型的联合因子.同时获得了各供试亲本材料在4个主成分中的得分及排名,筛选出了产量相关性状优良的亲本材料;供试亲本材料的RVA谱特征值间的相关性达到了显著或极显著水平,且与直链淀粉含量达到极显著水平.因此,通过本试验可为长江上游地区的杂交水稻亲本应用提供参考.     

基于主成分分析和熵权法的水资源承载能力及其演变趋势评价方法

提出了用于评价水资源承载能力及其演变趋势的指标体系,应用主成分分析原理建立了水资源承载能力的评价的综合指标-综合主成分,分别选取出了反映自然支持力指标、社会经济技术水平指标和社会生活水平指标的主成分,建立了相应的水资源承载能力变化驱动因子的多元线形回归模型,计算出山西各地市水资源承载力的综合得分。以太原市为例,分析了2000~2007年的水资源承载能力演变趋势。对综合主成分进行正态性检验,其服从正态分布,提出了相应的评价标准。结果表明,此方法及其评价标准能较全面地反映区域水资源承载能力状况。     

济南市水资源承载力的主成分分析

基于济南市具体情况,选取水资源承载力的9个相关评价指标,根据2005-2009年的相关指标数据,应用主成分分析法,运用SPSS统计软件,选出了影响水资源承载力动态变化的3个主成分,并以3个主成分的贡献率为权重,结合主成分各因子得分,对济南市的水资源承载力情况进行了综合评价,综合评价结果表明:2005 - 2009年济南市的水资源承载力水平呈总体上升趋势,经济的发展促进水资源承载力的提高,而人口和农业需水对水资源承载力造成巨大的压力,水资源开发利用技术还有待进一步提高.     

植物生长抑制剂对烤烟烟苗生理主成分的影响分析

对喷施生长抑制复合制剂（主要成分为ABA和多效唑）烟苗的8个相关生理生化指标进行了主成分分析,结果表明前3个主成分分别为植物抗性相关因子、光合作用因子和质膜透性因子.这3个主成分的累计贡献率达93.65%,可用于生理指标的综合评价     

电子商务对旅游经济发展作用的实证分析

构建了旅游经济和电子商务的关系模型.在模型中,用旅游业收入表征旅游经济发展水平,用旅游企业的自建电子商务网站数量、旅游企业的自建电子商务网站水平、旅游企业的搭载电子商务平台数量、旅游企业的搭载电子商务平台水平表征电子商务发展水平.借助上海地区2015年17个区县的相关数据展开实证分析,结果证实了电子商务对于上海旅游经济的发展具有显著的正向作用.     

组合评价模型在黑龙江省各主要城市综合竞争力评价中的构建及应用

利用黑龙江省12个主要城市的11项指标,分别采用综合指数法、层次分析法、主成分分析法和因子分析法进行综合评价和排位;针对4种单一模型的不足,建立模糊Borda的组合评价模型,应用该模型对黑龙江省的12个主要城市做了进一步的评价和排位。最后根据数据结果,提出相应意见。     

组合评价模型在黑龙江省各主要城市综合竞争力评价中的构建及应用

利用黑龙江省12个主要城市的11项指标,分别采用综合指数法、层次分析法、主成分分析法和因子分析法进行综合评价和排位;针对4种单一模型的不足,建立模糊Borda的组合评价模型,应用该模型对黑龙江省的12个主要城市做了进一步的评价和排位。最后根据数据结果,提出相应意见。     

十二种常用中草药中微量元素的主成分分析

在已有实验数据的基础上,采用主成分分析法,对12种常用活血化瘀类中草药微量元素与质量之间的关系进行综合评价。本文计算获得了3个主成分及相应的主成分方程,表明主成分分析和因子得分可以用于12种中草药质量的综合评价,分析结果可以为药品研制和应用提供科学依据。     

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.     

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.     

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.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

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.     

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.     

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-