高校供热网远程监控系统研究

介绍了采用组态软件力控ForceControl 6.0,通过应用GPRS技术和PLC技术实现的高校供热网远程监控系统。该监控系统可实现对整个热网的监测与控制调节,具有实时趋势和历史趋势的分析、历史报表的查询、Web网站发布等功能。结合高校供热的特殊性采用合理的节能策略,可实现高校供热节能目标。     

关于空调楼宇自控设计的体会

楼宇自控需要达到节能、舒适（恒温恒湿）、监视设备运行状态、远程控制设备及灯具。构成系统的主要硬件有通讯网络、局域网、大型模块化智能控制器及小型模块化智能控制器、操作站、信息及报告打印机、网络终端等。主要软件有摘要（各类报告清单）、密码保护、用户编程（图形化编程语言）、状态改变报告、报警信息报告、报告分组／报警管理、监控点历史、动态趋势分析、累积、统计功能、数据库下传/上载功能、设备循环启停保护等。     

基于PSA的起动机型汽车启停系统技术探析

针对日益严苛的汽车排放标准和节能需要,对起动机型的汽车启停技术进行研究分析。在传统汽车发动机怠速控制的基础上,增加一套增强型起动机控制的发动机启停系统,达到微混合动力效果。以PSA车型的STT启停系统结构和原理为例,分析启停技术控制策略,探讨启停系统设计方法和思路。     

基于WSN的土壤参数测量系统

针对目前土壤参数测量设备单一,检测参数过少,不能远程实时查询数据等问题,基于无线传感器网络技术,提出了一种基于WSN的土壤参数测量系统.该系统采用CC2530F256作为无线传感器网络主控,利用多传感器感知土壤参数,结合STM32智能网关,移植MQTT协议通过NB-IoT或者WIFI把数据最终传输到OneNET云平台,用户可远程通过PC端网页或者手机APP查看历史数据和土壤实时参数.经测试,该系统具有通信距离远,组网灵活,操作方便且能够长时间稳定工作等优点,具有广泛的应用前景.     

玉华洞风景名胜区旅游资源信息系统设计

本文所介绍的系统是在强大的GIS软件支持下，结合其他图像软件，设计开发而得．该系统不仅具有管理数据、查询统计、资源评价、制图输出等功能，并且可以在网络上发布，用户可在网上查看地图信息．     

基于PLC和WinCC的电热锅炉压力监控系统开发

实验室电热锅炉设备开发了以S7-300 PLC为控制器、以Win CC为组态软件的锅炉压力监控系统,作为PLC控制技术课程实践教学的案例。该文构建了PLC控制系统硬件回路,编写了锅炉压力闭环控制PLC程序,完成了上位机监控界面组态。通过实验调试表明,该系统能够将锅炉压力控制在设定值,上位机具有控制系统启停、设置PID参数和锅炉压力、实时显示压力曲线等功能。     

变压器强油风冷冷却器控制系统启停回路改造

该文通过对以礼河发电厂设备整治改造五年规划中对主变压器冷却器的现场改造调试经验,通过统计对比传统设计变压器强油风冷冷却器控制系统变压器的多年运行温度.注重在设备改造中,既能满足变压嚣的技术要求和现场安全要求,又要达到科学合理、技术先进、安全可靠,降耗节能,提高变压器运行效率为目的.提出了变压器强油风冷冷却器控制系统启停回路改造思路,并进行了实施,取得了较好的效果,以供同行参考借鉴.     

溴化锂空调监控系统设计与实现

本文基于氯碱化工的实际生产需求，设计并实现对6台溴化锂空调机组的集中监控该系统结构采用Hostlink通讯网络，利用组态王软件实时地采集空调的启停、压力、温度等各种反映空调运行状态的参数，并对空调机组的各种故障及时显示并报警     

家居环境动态节能控制系统研究

基于物联网思想,对温度、湿度、二氧化碳浓度以及光照度等参数进行实时跟踪与采集,同时接受用户的体验反馈,根据用户的实际需要,在不降低用户舒适度的前提下,动态控制各类家居设备,依据PMV-PPD热舒适度评价指标,对实验数据进行了检验与分析,结果表明系统节能效果明显.     

楼宇空调变水量冷媒水系统实时优化控制

为达到节能和优化系统控制的目的，在楼宇空调水系统及其局部控制仿真分析的基础上，针对变流量系统监测点和可调参数较多的特点，提出并验证了3个实时优化控制方案：根据初级和二级冷媒水流量的比率，实时优化多台冷水机组的启／停控制；利用AHU自动控制水阀的阀位信息，实时优化二级水泵的控制；利用AHU自动控制水阀的阀位信息以及二级泵的工作状况，实时优化冷水机组出水温度的控制．结果表明，同常规的控制方案相比，这3个优化控制方案不仅能够不同程度地达到节能的目的，而且还能够改善系统局部控制的特性．     

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.     

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.     

The Analects and the Moment in Peking——The influence of a Confucian education system on the personality formation,the way of thinking and the fate of the main characters

0.Preface China has long been boasting of its colorful and immense culture which comprises of Taoism,Confucianism and Buddhism.The interwoven influence among the religions on Chinese way of thinking,on the nation＇s behavior in their social life throughout the long history is beyond list.