浅谈仓储系统的方案设计

仓储系统是企业生产系统中的一个重要组成部分,仓储系统的好坏直接影响到企业内的物流系统,而整个物流系统对企业的正常运行起到至关重要的作用。仓储系统运行的效果如何,取决于仓储系统的设计、现场施工、技术培训和维护保养等情况。其中,仓储系统的设计至关重要。一个好设计是产生一个好的仓储系统的必要条件。仓储系统设计一般分为系统的基础数据统计、系统的货位设计、设备的选择、系统内物料流的走向、效率计算等5个阶段。     

数字轨道电路系统安全性与可靠性的讨论与设计

本文首先介绍了ATP系统,通过介绍ATP子系统里信息传递设计中的通讯信道设计和端设备以及轨道电路系统设计中的通讯、双机系统等设计,分析了ATP系统、DTC子系统的组成框图及各单元电路等几个部分的构成和相关的原理,系统地阐述了城市轨道交通ATP国产化项目数字轨道电路系统提高可靠性与安全性的设计方法。     

用asp技术构建社团管理系统

针对学校团委对社团管理的需求,利用ASP技术设计开发了社团信息管理系统,简要说明了系统的设计目标、功能模块、技术路线．并对数据库设计和系统权限管理等进行了较深入的探讨。系统具有开放性、实用性、交互性和时效性等特点。     

谈高校图书馆网络导读系统设计与实现

通过对当前高校图书馆网络导读的需求分析,设计了一套网络导读系统,从目标设计、数据库设计、功能模块设计等方面论述了系统的设计。     

基于单片机的通信系统的设计与实现

本文设计了单片机与internet互联的新系统；从系统硬件平台设计、以太网驱动程序设计、TCPIP协议设计等方面详细介绍了整个系统平台的设计与实现过程。     

基于SOPC嵌入式系统中软硬件协同设计方法研究

软硬件协同设计方法克服了传统设计方法的缺点,使嵌入式系统的设计效率更高,速度更快。通过研究嵌入式系统中基于SOPC的软硬件协同设计方法,论述了软硬件协同设计方法的特点,并且对设计流程中的系统任务描述、系统软硬件划分、软硬件协同综合、软硬件协同仿真等各个阶段进行了阐述,最后对软硬件协同设计的工具进行了介绍。     

科研统计系统设计存在的问题及优化建议——以教育部高等学校科研统计系统为例

以教育部高等学校科研统计系统为例,介绍了现行科研统计系统,指出系统设计存在指标脱离实际、设计不周全、系统操作设计不合理等问题.针对系统存在的问题,提出了从实际出发设计指标体系,提高数据信度;加强统计部门的交流,完善核心指标设计;加强系统的人性化设计,简化操作等解决办法,以适应实际需求,提升科研统计信息化水平.     

寿光市地下管线信息管理系统的设计与实现

本文详细介绍了山东省寿光市地下管线信息管理系统的设计原则、设计目标、系统框架和系统功能等,并给出了系统的实现界面。     

背压法氦质谱检测系统研制

工程应用中需开展背压法氦质谱检测系统展开研究和设计开发,设计内容主要包括氦质谱检漏仪技术参数确定、预抽真空系统设计、真空容器设计以及控制系统设计等,对氦质谱检测系统的仪器灵敏度、系统灵敏度及系统反应时间等性能参数进行了测定,结果表明检测系统具有检测灵敏度高和检测效率高等优点,满足使用要求。     

建设工程消防设计审核中自动喷水灭火系统常见问题解析

本文就在建筑消防设计审核过程中自动喷水灭火系统设计的系统选型、喷头布置间距、系统用水量等问题展开讨论,并就如何进行可靠、合理的设计提出建议。     

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.     

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     

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