基于实验室智能化综合管理平台的实验室开放管理

分析了实验室开放管理中存在的问题。针对实验室开放管理制度不完善、安全管理不到位、实验管理队伍建设薄弱、实验设备损坏率和耗材费用增加、实验室开放经费不足等问题,提出了可以通过实验室智能化综合管理平台来帮助解决。介绍了实验室智能化综合管理平台设计思路。并从推动了完善实验室开放管理制度、加强了信息化管理建设、建立了有效的考核准入机制、实现了网上预约、推进了网上项目管理、强化了实验室队伍建设、促进了经费合理使用等方面阐述了平台建设后取得的实验室开放管理效果。通过运行,规范了实验室开放管理,提高了运行效率,为学生的创新精神创新能力培养提供了有利条件。     

一种立体式复习教学方法——复习讲课比赛

本文介绍了农业化学复习讲课比赛的目的要求、比赛办法、比赛效果等。介绍了如何开展生动活泼的讲课比赛活动,充分调动了学生复习的主动性和自觉性。学生通过看、写、练、讲、板(书)、听、评等立体式复习,对教学内容加深了理解和记忆,同时训练了多种教学能力,从而取得了优异成绩。     

阜新盆地阜新市区地热资源地质条件简析

阐述了阜新盆地阜新市区的地质、构造情况。并对该区地热资源地质条件进行了分析,初步确定了热储、盖层、导水和控热构造。详细的对地热流体的化学成分、有用组分以及有害成分进行了分析评价。提出了进一步研究、勘察、评价、开发利用该区地热资源的建议。     

论液压滑升模板施工

滑模施工改善了施工条件、减少了劳动强度、加快了施工进度、节约了资源、降低了工程成本充分体现了混凝土的连续性施工特点。在新农村建设的大工程中,滑模施工起着重要作用。     

城市地理信息系统发展及设计开发研究

系统介绍了城市地理信息系统(UGIS)的概念及框架结构。提出了系统设计的理论方法。从硬件、软件、数据库、人员4方面分析了系统设计。介绍了从系统效率、可靠性、可扩展性、可移植性、效益5方面对系统设计进行评价的要求。     

含锂锆乳浊釉的耐磨性能研究

采用锂辉石代替部分长石，显著降低了釉的高温粘度，提高了锆乳浊釉的釉面光洁度和耐磨性能。同时用CaO、UgO、ZnO、BaO等完全取代了普通釉料中的K20，NazO，在保留了碱金属氧化物的强助熔作用的同时，提高了釉面硬度、增加了釉面耐磨性和化学稳定性。在配方设计中通过优化配比，制备了可在1180℃～1200℃烧成的光泽度良好的耐磨锆乳浊釉。并采用XRD，SEM等现代测试手段对实验釉进行了分析。提出了含Li2O、CaO、MgO、ZnO、BaO锆乳浊的耐磨机理。     

GPS双频M码接收机射频前端 设计与实现

介绍了GPS信号体制、新型军用M码的产生方式及其特点,并将新型M码信号与传统GPS信号做了对比。采用超外差式结构分离元器件方案完成了系统的设计并给出了组成原理框图。然后对原理框图中每一个功能单元的电路实现进行了设计,合理选择了低噪声放大器、功分器、射频滤波器、射频放大器、混频器、本振发生器、中频滤波器、中频放大器、数控衰减器、末级放大器等,根据选择的器件完成了原理图以及PCB设计,并为系统设计了屏蔽盒。最后对系统相应的指标进行了测试,测试结果表明该射频前端达到了要求的技术指标。     

注天然气提高采收率应用现状

 介绍了注天然气（烃类气）提高采收率的研究进展。论述了美国、加拿大、苏联注天然气提高采收率的应用规模,介绍了其他国家的典型项目。以大庆油田、长庆油田等天然气驱项目为例,分析了国内天然气驱发展缓慢的原因。探讨了天然气驱项目的油藏条件、井网井距、注入时机、注入方式等。分析了国内外天然气驱项目实施中遇到的混相压力高、沥青质沉淀、形成天然气水合物、过早气窜等问题及相应解决办法。阐述了天然气驱提高采收率技术的应用前景。     

极限中的死亡之旅

片刻,呐喊声也停止了,暴风雪平息下来,死一般的寂静笼罩了四周。一切都过去了。悲伤、痛苦、叹息、低语、憎恨、愤慨,一切都同25万灵魂一起消失了。     

大数据时代信息化在循证医学中的创新应用

传统循证医学研究中,证据的稀缺、偏倚、不公、过时等缺陷使得循证医学本身遭到了质疑。大数据时代,数据的巨量、高速、多样、价值特性弥补了传统循证医学的这些不足。伴随着大数据产生的云存储、数据挖掘、深度学习等技术推动了循证医学的发展。文章介绍了云存储、数据挖掘、深度学习等信息技术,并探讨了它们对循证医学的影响。     

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.     

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     

Call for Papers

<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     

Journal of Donghua University ( English Edition) Contents of Volume 31

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