论农业文化的开发和利用

农业文化是社会文化的重要组成部分 ,既是农业生产意识 ,又反映着农业生产发展的水平。农业文化与农业经济有着密切的联系。农业文化的开发是可能的和有条件的。农业文化的开发包括 :农业观念文化、农业制度文化、农业环境文化和农业政策文化的开发     

农业信息化助推农业现代化

农业信息化是我国社会主义农业现代化建设的重要目标。通过对农业信息化内涵的分析,指出农业信息化是农业现代化的重要标志和组成部分。基于对我国农业信息化发展现状、农业信息化对农业现代化推动作用的阐述,指出大力发展农业信息化是促进农业现代化跨越式发展的必由之路。     

浅析农业信息化与兵团第八师石河子市数字农业发展研究

农业农村部印发的《“十四五”全国农业农村信息化发展规划》，对“十四五”时期农业农村信息化发展做出了系统部署，农业信息化成为推动数字农业发展的引擎，成为推动农业现代化的加速器。本文从农业信息化与数字农业的相互关系、八师石河子市数字农业发展现状与面临问题、依托农业信息化，加快八师石河子市数字农业发展的对策建议等方面，理论联系实际，对加快八师农业现代化发展有一定的指导意义。     

国内外农业信息化的进展及对杭州的启示

21世纪是信息农业的世纪。计算机和信息技术的出现极大的改变了我国农业生产规模小、组织分散、时空变异大和稳定性差等行业性弱点。农业信息化对农业发展越来越重要,如果没有农业信息化,就不可能有农业的现代化。信息化是当代农业现代化的重要标志和关键,它主导着未来一个时期农业现代化的方向。 1.农业信息化的定义 中国电子信息产业发展研究院将农业信息化定义为:利用现代信息技术和信息系统为农业产供销及相关的管理和服务提供有效的信息支持,并提高农业的综合生产力和经营管理效率的相关产业的总称。具体内容包括:农民生活消费信息化:农业生产管理信息化;农业科学技术信息化:农业经营管理信息化:农业市场流通信息化:农业资源环境信息化:农业管理决策信息化。     

加快农业科技创新的对策研究

解决我国农业、农村和农民问题,使农业发展与人口、资源、环境、社会、经济协调起来,根本出路在于农业科技创新,农业科技创新最主要的是要加快构建农业科技创新体系,促进农业科技集成创新,推进农业科技结构调整,建立农业科技创新机制,深化农业科技体制改革,从而走出一条适合中国国情的农业科技自主创新之路。     

知识农业与农业信息化初探

在论述知识农业与农业信息化的涵义以及知识农业与农业现代化、农业信息化三者关系的基础上，提出了我国目前实现农业信息化应采取的措施。     

发展现代农业 促进农业经济发展方式转变

粗放型经济发展方式不仅浪费了大量的资源,而且严重污染了环境。发展现代农业是转变农业经济发展方式的重要途径。现代农业是高科技农业、组织化农业、市场化农业、规模化农业、多功能农业、高效率农业、高效益农业和两型农业,能够促进农业发展方式转变。但是,还存在农业基本经营制度和基础设施、科技支农不力、农村资源和环境等阻碍农业发展方式转变因素。需要运用"六用三提高"来发展现代农业,转变农业发展增长方式,促进农业又好又快发展。     

农业科技投入的技术创新效率评价研究

基于1996—2016年中国农业科技投入、技术创新成果和农业产值等数据,利用时间序列误差修正模型,对政府科技支出的投入导向度、农业科技投入的创新贡献率和发展贡献率进行了测度,然后实证分析农业科技投入对农业技术创新和农业增长的影响。结论表明:政府农业科技投入的增加对非政府部门的农业科技投入增加有促进作用;农业科技投入对农业技术创新有显著的促进作用,但有一定的滞后效应;农业科技投入增加对农业增长有显著正向影响。依据分析的结论,提出了加强和完善农业科技投入的政策建议。     

拖拉机在农业运输中的作用

我国是一个以农业为基础的国家,农业生产状况直接影响整个国民经济的发展。而在农业生产过程中,农业运输是需用劳力最多、劳动运输强度最高的作业之一。具统计在整个农业生产过程中,农业运输约占农业劳动量的百分之六十。由此可见农业运输是农业生产的重要     

论农业经济的发展趋势及对人才素质的要求

<正> 一、农业经济发展的趋势 1.由传统农业逐步向现代化农业过渡与转变由传统农业向现代化农业转变主要是根据区域地理经济特点,采用多样化的高效的立体农业生产方式,改进落后的不经济的农业生产方式,提高农业劳动生产率和农业经济效益,实现农业的可持续发展。具体包括:用先进适用技术     

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