传感式智能开发控制器的研究与设计

传感式智能开关控制系统是传统开关控制器的智能化，可视为虚拟开关机器人。本文以教室智能灯具开关为例，从系统数学模型的建立、基本系统结构到系统硬件设计给以详述。     

传感式智能开关控制器的研究与设计

传感式智能开关控制系统是传统开关控制器的智能化,可视为虚拟开关机器人.本文以教室智能灯具开关为例,从系统数学模型的建立、基本系统结构到系统硬件设计给以详述.     

高校教室照明节能自动控制系统设计

针对目前高校教室照明系统中,传统的人工管理方式效率低下、人走灯亮的长明灯情况普遍、用电浪费明显的现状,设计了一种照明节能自动控制系统。控制系统以PLC为中央控制器,控制现场底层设备的工作。使用C#语言开发的PC端上位机软件,与PLC以Modbus协议进行通讯,作为照明控制和监测平台。设置了休息日、节假日、寒暑假等符合高校工作时间的工作模式,实现教室照明的自动控制,避免了不必要的照明用电,起到节能降耗的效果。同时,在上位机软件上还能够直接控制教室现场灯具,监测灯具使用情况,包括开关状态、今日使用时间、累计工作时间等,方便工作人员管理。     

基于LonWorks技术的教室照明节能系统研究

设计了一种基于LonWorks技术的教室照明节能系统,根据教室中人员情况和光强控制灯具的开关状态以及灯具开启的数量,达到了节约电能的目的.管理员通过监控软件可远程了解各个教室的情况,并能够进行人工控制.实践表明,该系统具有可靠性高、扩展性强、易于实现等特点.     

基于LoRa物联网的城市道路照明能耗与窃电监测系统

为了解决现代城市智慧照明线路用电设备日益复杂造成的照明能耗监测难题，基于LoRa物联网技术设计城市道路照明能耗与窃电监测系统.系统是由具备LoRa无线通信功能的集中控制器、LED照明灯具和其他用电设备组成的LoRa无线通信网络；集中控制器为系统主机，LED照明灯具和其他用电设备为监控节点.提出了一种两步无线通信、分时同步采集所有监测节点电力数据，由集中控制器实现照明线路照明功率与能耗计算，判别窃电行为的实时照明能耗与窃电监测策略.介绍了集中控制器的硬件模块设计，详细给出了策略的软件实现方法，包括集中控制器程序设计和LED灯具驱动电源程序修改.照明能耗与窃电监测系统测试平台的实验结果验证了系统能有效实现无线照明能耗同步采集与窃电监测功能，可更好地满足城市路灯智能化管控的要求.     

教室照明质量的评价与改进

以国内外有关室内照明和视觉功能的最新研究成果为基础，建立了综合评价教室照明质量的计算机程序；通过实地调查和计算分析找出教室照明现存的主要问题，进而提出了若干改进措施，并试作了几种适用于教室照明的灯具和布置方案；最后．通过实验室及现场实验对所提出的建议作了验证。     

基于单片机的教室照明节能控制系统

从节能的角度出发，针对学校照明用电浪费严重的问题，利用照度检测和红外探测相结合的主动与被动的探测方式，开发教室照明节能自动控制系统，实现教室元人或者光照充足时自动关灯、有人到来且光照不足时自动开灯的功能，达到节能的目的。     

基于物联网的智慧灯具老炼试验控制系统研发

灯具老练试验具有长周期、恒源、恒温、运行状态交替等技术要求，是公路交通机电照明产品试验检测的一个关键环节，在整个灯具性能检验过程有着非常重要的作用。文章结合物联网技术、数据库技术和可编程逻辑控制器（PLC）控制技术，研发一套能按照业务需求全天候稳定运行的智慧化灯具老炼试验控制系统，实现了试验状态监测预警、数据集中、多终端监测、应用拓展等功能，为灯具老炼试验的安全性、可靠性及试验数据的准确性提供了支撑和保障，提高了试验效率。     

多媒体教室的智能照明控制系统

多媒体教室灯光智能控制系统采用ATMEGA16单片机作为核心控制器,对教室内人体检测采用主动、被动式热释电相结合的方法,提高了对人体信息探测的准确度,并采用总线方式,实现了各教室照明系统的计算机网络化监控。大大降低了管理人员的劳动强度,提高了资源利用率,功率接口采用固态继电器,电路和程序调整灵活,可实现照明系统的定时控制、环境亮度控制、人体红外检测和手动控制等功能,使灯光只在需要的时间和地点才点亮,实现了节能降耗的目的。     

NB-IoT无线路灯控制器研究

设计了一款高性能NB-IoT无线路灯控制器.该路灯控制器使用M5311窄带物联网传输模块实现无线通信,使用嵌入式单片机STM8作为控制器,使用智能电量采集芯片HLW8112实时采集路灯的电压、电流、功率、电能、功率因数等电气参数,具有灯具故障诊断与报警、灯具远程或本地渐变与瞬时调光、灯具电源开关控制等功能.分析与设计了路灯控制器的M5311与CPU接口电路、D/A调光电路、电气参数采集电路、主程序、定时器中断服务子程序、联网服务子程序、指令解析子程序、故障诊断子程序、路灯控制器与远程控制平台的通信协议.路灯控制器测试平台的实验结果验证了NB-IoT无线路灯控制器的功能与性能,满足现代城市路灯智能控制的要求.     

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.     

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.     

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.     

A computer generator for randomly layered structures

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

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-