基于Internet的视频监控系统的设计与实现

结合所开发的视频监控系统,介绍了一种可通过Internet实现远程实时视频监控的系统的主要功能和一些关键技术实现。该系统将数据库管理系统和视频监控系统,计算机网络技术相结合,可以实现远程自动监控、自动报警、查询记录等功能。     

光伏系统的远程监控技术与实现

总结了几种应用在光伏系统中具有普遍实用性的远程监控技术方案,并给出了它们的实现原理．在此基础上开发了基于485总线和Internet网络技术的光伏远程监控系统,实现了对光伏系统运行状态的远程实时监控．该监控系统由监控终端、主控机及异地机系统组成,通过网关服务器软件和Internet网络实现远程监控．系统运行结果表明该方案是可行的．     

一种远程监控系统结构的设计与实现

传统基于分布式对象模型的远程监控方法具有互操作性差、缺少灵活性、非防火墙友好等缺点.为了克服这些不足,提出了一种基于Web Service的远程监控系统结构.该远程监控结构利用OPC技术获取现场数据,通过过程网关将这些数据封装为Web Service,利用Web来建立远程监控系统.为了保证系统的安全性、可靠性,采用了安全审查、权限管理、冲突避免、日志管理等措施.最后,在这种远程监控系统结构的基础上,开发了一个远程监控系统的示例.系统实际运行效果表明,这种远程监控方式有其独特的优点.     

基于GPRS的数据采集远程网络监控系统

基于GPRS的数据采集远程监控系统是水下安保系统的重要组成部分,通过GPRS无线通讯技术将安保浮标数据发送到远程网络监控计算机中,实现远程监控.该系统在我国大型海上运动项目中得到了使用,对近岸海域的安保起到了重要作用,实践证明系统稳定可靠,具有很强的实用性.     

泵站运行工况远程监控系统的设计

结合排水泵站的特点及其对远程监控的需求，设计了基于GPRS的泵站运行工况远程脏控系统．在分析远程监控系统结构的基础上，对系统设计和实现中的关键技术进行了论述．设计并编程实现了GPRS通信系统的应用层协议，以保证在商用GPRS网络上传输数据的可靠性和经济性．对GPRS接口和数据中心的程序设计也进行了介绍．该远程监控系统已经成功投运，并将监控系统画面在Internet上进行了发布．     

基于Zigbee/GPRS的杀虫灯监控系统的设计

为实现用户远程对杀虫灯的监控、调整,设计了一种基于Zigbee和GPRS网络通信技术的杀虫灯远程监控系统。介绍该监控系统的网络结构,分别阐述杀虫灯监控电路、通信控制器及其网络服务器等监控系统部件的软硬件设计,并进行系统试验验证。结果表明:该系统能远程有效监测杀虫灯环境与工作参数,实现了杀虫灯工作状态数据和图像等的采集、存储、上传,蓄电池的自动保护,以及用户远程对杀虫灯的控制和调整。该系统能够加强用户对杀虫灯的管理,提高杀虫灯的工作稳定性和灭虫效果,进而促进农业增产。     

基于NIOSII嵌入式软核的远程温度监控系统

介绍了基于NIOSII嵌入式软核的远程温度监控系统.该监控系统主要由远程监控终端和中心服务器两部分组成,远程监控终端和中心服务器之间通过GSM网络使用短消息实现数据传输.系统通过监测装置温度来进行相应的远程控制,以满足这些系统所需要的高可靠性、高实时性和维护方便性的特点.本文重点介绍了监控系统的工作原理、监控终端的硬件电路设计、硬件配置设置及系统软件设计.     

导航设备远程监控系统的设计与实现

针对导航设备管理的现状,提出了一种对导航机进行远程监控的方法。该系统通过调制解调器拨号,来实现对导航设备的远程监控。详细介绍了远程监控系统的组成以及软、硬件设计。     

基于信息家电的远程监控系统研究

本文首先介绍了基于信息家电的远程监控系统的结构和特点,然后分析了该系统远程监控的过程,最后提出了不同模式下的实现方法。     

基于GPRS/GSM嵌入式无线监控系统的设计

针对远程监控的需要,设计了一种在Samsung的S3C2440微处理器平台上的嵌入式无线监控系统,给出了该系统的软硬件的详细结构.该系统通过GPRS/GSM短信组网方式,实现了监控中心对现场的远程监控.测试结果表明：在现有的移动通讯网络覆盖的区域,利用该系统可以完成对现场设备的在线数据采集、远程无线数据传输与监控.     

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.     

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.     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

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.