山西省花卉资源的开发利用

山西省花卉资源丰富,数量多、品种丰富、分布广。从形态、习性、繁殖、栽培管理等方面对山西省常用的35种花卉进行了系统论述,以期为有关部门对山西省花卉资源的规划、研究、开发和利用提供借鉴。     

甘肃银杏资源分布及栽培类型区划

通过对甘肃银杏资源近10a的调查研究，参考各类区划划分标准，依据栽培历史和种苗产地，将分布广泛的甘肃银杏资源划分为三个栽培类型区，对甘肃银杏种实类型进行了调查研究，为促进甘肃银杏产业振兴当地经济的发展发挥了积极作用。     

攀枝花市花卉产业发展的现状与对策初探

本文通过对中国及世界花卉产业发展趋势的阐述，结合攀枝花的自然气候、城市发展、社会经济以及花卉发展现状，阐述了攀枝花市发展花卉应该立足本市较丰富的野生花卉资源，加强合作，加大科研力度，发展珍奇花卉，走产业化发展之路。     

攀西地区蔷薇属植物资源及其开发利用价值

蔷薇属植物是攀西地区数量最多、分布最广的野生花卉、水果及药用植物资源之一.本文根据野外调查、文献资料及国内部分标本馆的查询,报道攀西地区该属野生植物资源种类40种5变种,并简述了其利用价值、资源开发面临的问题.     

新宾钢山野生花卉资源调查

通过对新宾钢山野生花卉资源的调查，结果表明，钢山地区野生花卉资源丰富，具有较高的园林应用价值，初步查明这里的野生花卉共计41科79属98种；其中观花类56种，观叶类18种，观果类12种，藤本类12种，为扩大及开发野生花卉资源，及对其引种与驯化提供了科学的依据。     

河南省鸡公山自然保护区的野生花卉资源及合理利用

野生花卉资源是花卉栽培驯化及良种选育的物质基础.河南省鸡公山是国家级自然保护区,属于北亚热带向暖温带过度地区,有丰富的野生花卉资源,经调查有野生花卉49科,103属,257种(含变种).种类最多的是蔷薇科,有野生花卉42种(含变种).按性状分类,木本花卉122种,占47%;草本花卉135种,占53%.从花色结构上看,白色、红色、黄色、蓝紫色及复色系花分别为103、54、43、32和25种,依次占资源总数的40%、21%、16%、13%和10%.从花期结构上看,春、夏、秋季开花的种类分别为:131、87、39种,所占比例依次为:51%、34%、15%.鸡公山自然保护区的野生花卉具有种类多,分布广;花色丰富,观赏性强;多阳生型,易于利用;变异多样,有利选育;稀有种类多,经济价值高等特点.     

抚顺地区野生花卉资源的筛选与利用

通过对抚顺地区野生花卉资源的调查与研究，筛选出52种有较高观赏价值的野生花卉，包括可观花、观叶、观果的野生花卉及可作切花材料的野生植物，结果表明，抚顺地区野生花卉资源丰富，在环境绿化美化中，具有较高的应用价值。     

青藏高原特色植物资源绿绒蒿属植物的开发和利用

本文通过介绍中国绿绒蒿属植物的资源状况,绿绒蒿属植物在花卉栽培和药用植物资源的开发利用的相关研究,分析阐述了绿绒蒿属植物资源开发和利用存在的问题.指出对于这一反映具古地中海的起源,且曾广布于劳亚古陆湿润区域,出现间断分布的青藏高原独特植物资源的种质状况、种质资源库及植物对青藏高原生理适应机理等方面的基础研究的资料尚处于研究空白.     

张克中:百合需要“中国制造”

张克中博士、副教授,北京农学院园林系园林植物教研室主任,主要从事花卉种质资源发掘与利用、花卉育种、花卉现代栽培与繁殖技术研究。2003年入选北京市科技新星计划,2005年入选北京市青年骨干教师。     

多种教学媒体资源建设及优化组合与综合应用

远程开放教育是伴随着现代通信、计算机网络技术和多媒体技术的飞速发展而产生的新型教育形式。多种教学媒体资源在现代远程开放教育中占有非常重要的地位。文章通过在园艺学专业课程远程教育开放的实践,结合《花卉栽培学》《园林规划设计概论》课程特点,进行了多种教学媒体资源建设及优化组合与综合应用的实践探索。     

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