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1.
论述了综合录井数据系统的作用和意义,系统地分析了综合录井的输入和输出环节及数据的结构规律,并提出了综合录井数据资源两级开发的必要性和合理性。给出了该录井系统的输入和输出环节的具体设计方法,可供参考的范例和有关数据资料。在整体方案设计了构思了数据流程图和必要的组成部分,并对最小运算周期和两级开发必要的接口进行了论述。  相似文献   

2.
本文回顾了中国柑桔业的历史和发展过程,分析和讨论了目前我国柑桔生产和市场的现状和存在的问题,提出了解决问题的对策和今后的任务;展望了未来的发展前景。  相似文献   

3.
本文论述了学科和专业的概念,指出了高等学校学科建设和专业建设的内容,进一步论述了高等学校学科建设和专业建设重要性,系统地阐述了高等学校学科建设和专业建设关系,提出了如何正确处理高等学校学科建设和专业建设关系,使学科建设和专业建设协调有序进行。  相似文献   

4.
阐述了血压和血管硬化程度的测量原理和方法,介绍了测量仪的硬件和软件的设计以及测量过程,探讨了目前临床应用结果和存在的问题,提出了研究的改进思路和意义。  相似文献   

5.
杨立飞  江虹 《科技咨询导报》2010,(4):241-241,243
本文首先对SRCM的产生背景和特点进行了介绍,对SRCM与传统RCM的不同点进行了对比,其次就SRCM的执行过程进行了详细的阐述和分析,并回顾了SRCM在国内外的应用现状和已取得的成果,最后对其不足之处及发展前景进行了探讨和展望。实践证明SRCM有着独特的应用价值,节省了分析所需的资源和时间,保证了RCM的完整性和结果的正确性。  相似文献   

6.
从大学物理教研室的建设与快速发展阐明了教学和科研并进的重要性.科研提高老师的科学素质、丰富了老师的课堂内容,提高了老师的教学质量,促进了青年老师的快速成长.科研促进了教学研究、教学改革和创新的深入,从而促进了各学科的建设和发展.科研促进了本科教育和研究生教育的融合,为本科专业的建设和发展奠定了雄厚的基础.科研促进了实验室的建设,使建设的实验室能与国际发展和国内需要相适应.  相似文献   

7.
阐述了弱势群体的概念和特征,分析了我国弱势群体的生存状态和思想状况,论述了关注弱势群体问题的重要性和紧迫性,提出了解决弱势群体问题的基本方法和途径。  相似文献   

8.
科学发展观"初步形成了马克思主义关于社会主义发展的系统理论",实现了我们党在发展问题上的认识飞跃;进一步丰富和发展了建设中国特色社会主义的思想路线;进一步丰富和发展了中国特色社会主义建设根本目的和依靠力量的理论;进一步丰富和发展了中国特色社会主义发展道路的理论;进一步丰富和发展了中国特色社会主义建设战略布局的理论;进一步丰富和发展了中国特色社会主义的执政党建设理论.  相似文献   

9.
锁相环与锁频环在数字Costas环中的应用   总被引:1,自引:0,他引:1  
基于锁相环和锁频环的模型,研究了由两者构成的数字Costas环结构和性能.首先介绍了传统的数字Costas环模型,接着给出了鉴相器、二阶环路滤波器和三阶环路滤波器的结构,在此基础上分析了基于锁频环的数字Costas模型,实现了扩大Costas环的跟踪范围和提高跟踪精度的目的,最后给出了仿真结果,分析了两种环路单独和相结合后的应用和特点.  相似文献   

10.
文本阐述了包装物核算的办法,剖析了我国企业会计实务中包装物核算和管理弱化的现状,指出了存在的问题和弊端,提出了包装物核算和管理、包装物明细科目的设置和摊销及期末计价建议和看法。  相似文献   

11.
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.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
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.  相似文献   

13.
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。  相似文献   

14.
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.  相似文献   

15.
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-  相似文献   

16.
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-  相似文献   

17.
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  相似文献   

18.
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  相似文献   

19.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

20.
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