有限结荚类型大豆初花期与成熟期主要性状的遗传与相关分析

对两个大豆杂交组合Ｆ＿２代中选出的各１８个Ｆ３有限结荚型株系的初花期和成熟期主要性状的遗传力进行估算，对其相关性进行分析。结果表明，其遗传力大小依次为：成熟期株高＞生育日数，＞成熟期主茎节数＞初花期株高＞初花期主茎节数＞出苗至初花日数＞初花期初花节位＞单株总荚数＞单株粒重。出苗至初花日数、初花期初花节位、初花期主茎节数、初花期株高间彼此相关极显著，这些性状与生育日数、成熟期主茎节数，成熟期株高之间关系亦极密切。初花期和成熟期的上述主要性状与单株荚数和单株粒重的关系大多不显著。选育早熟，株矮的有限结荚型大豆与高产育种并不矛盾，可满足当地育种目标要求。     

偏轴钻具组合防斜效果的实验室评价

运用底部钻具组合运动状态模拟实验装置，在实验室内评价了偏轴钻具组合的防斜效果。根据钻头与地层相互作用模型，提出了以井斜趋势角为指标的综合评价方法，利用模拟实验数据对直径为311mm井眼中4种偏轴钻具组合的防斜效果进行了评价。结果表明，井斜趋势角可以作为综合评价钻具组合防斜效果的指标；使用扶正器可以提高偏轴钻具组合的防斜效果。     

偏轴钻具组合防斜效果的实验室评价

运用底部钻具组合运动状态模拟实验装置,在实验室内评价了偏轴钻具组合的防斜效果。根据钻头与地层相互作用模型,提出了以井斜趋势角为指标的综合评价方法,利用模拟实验数据对直径为311mm井眼中4种偏轴钻具组合的防斜效果进行了评价。结果表明,井斜趋势角可以作为综合评价钻具组合防斜效果的指标;使用扶正器可以提高偏轴钻具组合的防斜效果。     

基于主客观赋权的企业专利组合质量评价

为解决质量视角下企业专利组合的评价问题，结合三角模糊数、多目标优化法和两阶段优化法提出了一个企业专利组合质量评价模型。从规模性、创新性、稳定性、经济性和战略性5个方面选取企业专利组合质量的评价指标，采用三角模糊数和多目标优化方法计算指标的主观权重，采用两阶段优化方法计算指标的客观权重，通过主客观赋权确定指标的综合权重。随后根据指标评价值和指标权重对专利组合质量进行排序，并将提出的模型应用于动力电池企业的专利组合评估。研究结果表明：该方法综合了专家决策信息和客观数据，可对企业专利组合进行有效评估。     

宁夏露地夏茬大果番茄杂交组合的综合评价

番茄杂交组合的综合评价是番茄育种的基础,为了提高番茄杂交组合的利用率和育种选育的水平,目前亟需一套科学合理的评价方法.研究基于30个表型性状对前期配组的529个大果番茄杂交组合进行描述性统计分析、主成分分析和综合评价.结果表明,9个植物学性状变异系数的范围为6.11％～41.90％,最大的是熟性,最小的是叶脉颜色;21...     

基于组合赋权-云模型的高速公路网交通韧性评价

为了制定提升高速公路网交通韧性的策略，提出一种基于组合赋权-云模型的路网韧性评价方法. 首先，选取结构熵、边介数、聚类系数、路网密度4个路网拓扑结构指标和行程时间指数、路网流量非均匀指数2个交通运行状态指标，从路网拓扑结构与功能两方面对路网韧性进行综合评价. 其次，对路网韧性等级进行划分，确定各评价指标在不同韧性等级的阈值，并基于逆向云发生器计算云参数特征值及确定度. 随后，采用层次分析法和熵值法对指标进行组合赋权，通过加权平均得到不同韧性等级的隶属度，根据隶属度最大原则判定高速公路网韧性等级. 最后，以某高速公路网为例进行实证研究，将所提出的组合赋权-云模型评价方法与综合模糊评价法进行对比. 研究表明，二者的评价结果相近，但组合赋权-云模型评价方法克服了综合模糊评价法中随机性的缺陷，能更客观地反映路网的真实运行状态.     

几个杂交粳稻骨干亲本的配合力分析

利用7个粳稻BT型不育系和13个恢复系按NCII遗传设计配制91个杂交组合,对20个亲本的播抽历期、单株有效穗、结实率、千粒重、穗长、单株日产量、着粒密度、株高、实粒数以及总粒数等10个性状的配合力进行了分析.结果表明,BT-武3A是综合评价最优的不育系,C4115是综合评价最优的恢复系.     

育种杂交棉的品质分析

文章用主成分分析法分析了新疆南疆22种育种杂交棉的马克隆、上半均长、整齐度、短纤维、反射率、黄度等9项指标,目的是找出代表绝大部分信息的综合变量。结果显示:四个主成分可以代表原始信息85%以上的信息,降低了数据维度,极大简化了育种杂交棉品质评价程序,为客观准确的评价棉花品质提供了理论依据。     

高等职业院校教学质量水平评价指标及方法

目前随着高等职业院校迅速发展,教学质量也存在一些问题,为了评价和监督高等职业院校的教学质量,本文构建了高等职业院校教学质量水平评价指标体系。该指标体系包括六个一级指标:办学指导思想、师资队伍建设、教学条件建设、教学建设与改革、教学管理、毕业生质量,每个一级指标包含不同数目的二级指标。然后通过组合赋权法确定每个指标的权重,计算得到高等职业院校教学质量水平综合指数,这一综合指数就可以评价高等职业院校的教学质量水平。     

基于组合权重和云模型的综合交通一体化评价方法

为准确评价综合交通一体化水平,选取铁路运输一体化、公路运输一体化、水路运输一体化、航空运输一体化和综合交通运输5个一级指标和16个二级指标,构建综合交通一体化评价体系。采用层次分析法-熵权法组合赋权,以减少层次分析法中主观因素对评价结果的过多影响;引入云模型量化综合交通一体化评价指标的模糊性和随机性,生成各个评价指标的评价等级云图,得到评价结果,从而设计出基于组合权重和云模型的综合交通一体化评价方法。厦门市交通一体化发展水平的评估案例表明,使用该方法得到的评价等级与实际情况基本相符,说明该方法具有较强的适用性。     

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.     

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.     

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.     

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.     

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-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the