基于CCD的图像采集系统设计

研究设计了一种基于CCD的图像采集系统，系统分为四个模块：驱动模块，模数转换模块，存储模块，与计算机的接口模块。系统在外界提供光源的情况下，能够对简单的图像信号进行采集并可以实现与计算机之间的通信。本系统在信息高竦发展的今天具有一定的实用价值。     

基于DSP＋GPS公交收费系统的终端设计

提出了基于GPS公交车收费系统的终端的设计方法,该设计主要充分利用DSP处理数据速度快的特点;本系统主要实现3大功能,一是采集坐标信息,利用GPS采集公交车经过的站点位置的经纬度;二是采集非接触式IC卡用户口的信息,得到IC上的金额,三是将采集到的用户口信息以及位置信息通过GPRS模块传输到服务控制后台,由后台控制中心来处理乘客在一次坐车中所花费的总费用.为了乘客刷卡的方便,应在每一辆公交车中安装两个这样的系统,一个是安装在车的前面用来采集乘客上车时的位置信息,以及IC上的金额,另一个是安装在车的后面用来采集乘客下车的位置信息,并通知这次乘车所花费的金额以及IC上所剩的金额;本系统可以根据乘客所乘的实际距离来收费,而不是现在公交车单一的收费标准,使乘坐公交车收费更加合理,更加科学;本系统是在嵌入式系统L inux平台下实现,实用性强、操作简单、扩展功能强.     

数据库技术在砝码自动检测系统中的应用

为提高砝码检定的准确性,提高检定效率,本项目设计完成了砝码自动检测系统.本系统利用计算机技术实现了砝码检测数据的自动采集,利用数据库技术实现了成组砝码的检定信息的集成和汇总,并能自动生成砝码检定记录.同时构建的砝码检测信息数据库,可方便查询以往检定信息,便于计量管理.     

区块链技术在乳制品溯源中的应用

乳制品安全事故制约了企业的发展，也暴露出安全监管的缺失。乳制品供应链中存在信息篡改、伪造等风险，使用传统的溯源方法已不能解决信息篡改伪造等问题。本研究旨在采用物联网技术和区块链技术同时实现数据自动采集、多方共同记录溯源信息，使用区块链技术作为整个系统的底层技术构建商品溯源平台，真正实现商品生产加工销售信息的独立上传，避免中心化系统超级管理员对数据的污染，有效降低数据被篡改的可能，做到商品的可信溯源，从而提升企业的品牌形象和价值。     

基于S3C2440的嵌入式无线视频采集系统设计

为提高视频信息传输和存储速度，针对无线视频监控的应用环境，设计并实现一个无线视频采集系统。设计了视频采集系统的硬件结构和软件体系结构，硬件核心控制单元采用S3C2440 微控制器，通过USB 接口扩展连接ZC301P 摄像头和ＲT3070 无线网卡，并扩展内部存储器，视频采集系统软件结构包括嵌入式操作系统Linux、视频采集API 接口、视频数据编码，利用V4L 编程接口实现视频信息压缩、数字图像处理，实现快速的视频信息传输和存储。     

移动式葡萄田间远程监控系统设计与研制

针对传统作物田间图像采集过程中采集设备布线繁琐和采集范围小等问题,设计开发了一种移动式葡萄远程图像获取系统.本系统以cortex-A8架构处理器S5PV210为核心,选用UVC摄像头为图像获取设备,利用Telent或手机重力感应通过CGI接口向后台程序传递参数,实现对移动式设备以及车载云台机构的远程操控.本研究开发的控制界面可远距离获取图像信息,并通过远程控制移动设备调节摄像头焦距以及调整葡萄田间采集监测区域.本移动采集系统在葡萄园内的测试结果表明,采集系统运行可靠,开发布线简洁,图像传输稳定,在Telnet终端控制时系统响应时间短且实时性好,丢帧率低.本研究为葡萄园信息监测提供了一种智能化装备样机,对农业物联网应用设计与开发具有重要意义.     

玛纳斯河流域生态环境质量评价软件的开发

玛纳斯河流域生态环境评价软件是为实现“生态环境数据”的录入．查询，统计及评价而设计开发的管理软件系统。本软件是在Windows环境下，利用Visual C＋＋为基本鳊程语言，结合SQL数据库软件进行设计，可大大提高生态环境质量评价工作的效率，并且本软件是绿色软件，直接解压缩即可使用。     

物联网技术在目光温室大棚中的应用研究

本项目采用物联网技术实现农业生产环境信息实施采集和利用自组织智能物联网对采集数据进行远程报送及智能控制。基于无线传感器网络、嵌入式系统、移动通信网络和计算机网络及PLC控制系统实现对大棚花卉、农作物等从种植、培养、灌溉等环节进行有效地全程监控和信息查询。通过物联网平台,建立一套用于农作物种植基地区域内温室大棚的自动化与信息化解决方案。     

用电信息采集系统常见故障及维护分析

现在电网的用电信息还没有在我国全面覆盖，但是覆盖率还是比较高。随着用电信息采集系统建设规模和覆盖率不断扩大，相应而来的采集系统的故障分析和维护就需要进一步提高。介绍了用电信息采集系统的重要作用，全面详细地分析了用电信息采集系统在主软件故障、终端等方面的故障情况，并提出了用电信息采集系统的维护措施，为用电信息系统的运行维护提供参考。     

通用小型电压采集系统的设计与实现

应用通用微机接口芯片实现电压值的采集，并能够显示采集的平均值，对不符合要求电压值给出报警信号。本系统具有成本低，性价比高，通用性好，功能齐全，易于操作等特点。     

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     

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