重庆市渝北区耕地整理潜力研究

通过划分潜力评价单元、构建评价指标体系、指标值标准化处理，加权求和得到渝北区耕地整理潜力综合指数Fi及潜力分区，提出耕地整理的促进措施，以期有助于实现渝北区耕地保护和耕地总量动态平衡．     

基于PATTERN的土地整理潜力评价

土地整理潜力评价是编制土地整理专项规划的依据,是科学划定土地整理区的基础工作。本文将土地整理潜力划分为本底潜力和环境潜力,据此建立土地整理潜力评价指标体系,确定基于关联树(PATTERN)法的土地整理潜力评价方法,并对湖南省临湘市土地整理潜力进行区域分级,从而为该市土地整理专项规划的编制提供参考。     

延吉市市地整理潜力宏观评价研究

在探讨市地整理潜力的基本理论问题的基础上,从宏观层面对延吉市城区土地进行潜力评价,对延吉市城区土地利用现状进行了分析,通过确定评价技术路线、建立指标体系、确立评价方法、构建潜力等级体系、计算可整理潜力值5个步骤对延吉市市地整理潜力进行综合评价,并给出相应的整理建议.     

模糊数学在土地开发整理新增耕地质量评价中的应用

主要从土地开发整理新增耕地质量验收的角度出发，应用模糊数学综合评判法对土地开发整理新增耕地质量评价做了探索性研究，通过对陕西省卤泊滩土地开发项目新增耕地质量的应用分析，结果表明，该方法的评价结果与其他方法的实际情况是一致的，且步骤严谨简便，易于操作。     

土地开发整理项目中耕地自然质量评价研究

阐明了土地开发整理的内涵、目标,通过对土地开发整理项目管理中耕地自然质量影响因素控制标准和耕地自然质量评价标准的分析,提出土地开发整理后耕地自然质量评价方法。     

山地丘陵区农村居民点整治潜力测算——以陕西省旬阳县为例

基于户均建设用地标准法测算陕西省旬阳县农村居民点土地整理的理论潜力,选取自然、经济、社会因素构建修正指标体系,利用修正系数计算耕地潜力和当前可开发潜力,继而确定农村居民点整理分区。结果表明:旬阳县土地整理理论潜力总计225.414hm~2;各乡镇耕地潜力修正系数为0.267~0.810,耕地潜力总计124.168hm~2;可开发潜力修正系数为0.305~0.810,可开发潜力总计73.896hm~2。对整理潜力进行分区,其中一级潜力区有4个,可开发潜力40.988hm~2;二级潜力区有4个,可开发潜力15.49hm~2;其余镇属于三级潜力区,可开发潜力17.419hm~2。农村居民点土地整治潜力受自然因素影响较大,社会、经济因素次之。     

耕地整理潜力评价--以三峡重庆库区为例

耕地整理潜力评价作为耕地整理的一项基础工作,目前缺乏统一的评价指标体系。从三峡重庆库区的实际出发,依据耕地整理目标和潜力评价的原则,指出了评价工作应从多指标综合考虑,提出了耕地潜力评价体系应包括增加耕地系数、耕地产出提高率、投入产出比、林地面积比重提高率等方面,以期在评价工作中做到社会效益、经济效益和生态环境效益的统一。     

川西北高山高原区土地开发整理补充耕地质量等级评价——以康定县新都桥镇土地整理项目为例

土地开发整理补充耕地质量等级是实现耕地占补平衡的基础.通过选择川西北高山高原区典型土地整理项目,运用层次分析法确定了补充耕地质量评价指标体系,并对补充耕地质量等级进行了模糊综合评价.结果表明,项目区补充耕地普遍属于＂良好＂等级,但不同坡度级之间耕地质量有明显差异,土地质量随坡度的增大而降低.     

模糊数学在土地开发整理新增耕地质量评价中的应用

主要从土地开发整理新增耕地质量验收的角度出发,应用模糊数学综合评判法对土地开发整理新增耕地质量评价做了探索性研究,通过对陕西省卤泊滩土地开发项目新增耕地质量的应用分析,结果表明,该方法的评价结果与其他方法的实际情况是一致的,且步骤严谨简便,易于操作。     

综合评价指标体系和评价方法

综合评价指标体系建立及评价方法的选择是综合评价工作的中心环节。在前人研究成果基础上，提出了一套较为完整、实用的指标体系的建立方法，并提出了评价方法的选择原则．指出了当前综合评价工作中尚待研究的问题。     

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.     

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.     

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