植物生长用高强度气体放电灯（下）

2．4LED（Light Emitting Diode）LED是近几年迅速发展的新型光源。目前LED应用于植物生长照明仍处于初期研究阶段,但LED本身独特的优势如极低的能量消耗、极长的使用寿命、较低的热量释放以及针对植物光合作用波长可专门设计光输出等,使得LED光源被认为是适用于植物生长照明最有前景的光源。     

TinyOS感知节点在智能电网输电环节的应用

以智能电网中输电环节的关键设备研制问题为目标,从技术实现手段——无线传感器网络操作系统TinyOS及节点设备,讨论了实现中涉及的网络拓扑、能量消耗优化、地址分配、调度机制的特性和应用考虑,给出了应用中的实现过程。     

In-network caching for energy efficiency in content-centric networking

Recently, Internet energy efficiency is paid more and more attention. New Internet architectures with more energy efficiency were proposed to promote the scalability in energy consumption. The eontent-eentrie networking （CCN） proposed a content-centric paradigm which was proven to have higher energy efficiency. Based on the energy optimization model of CCN with in-network caching, the authors derive expressions to tradeoff the caching energy and the transport energy, and then design a new energy efficiency cache scheme based on virtual round trip time （EV） in CCN. Simulation results show that the EV scheme is better than the least recently used （LRU） and popularity based cache policies on the network average energy consumption, and its average hop is also much better than LRU policy.     

基于云模型的WSN能量消耗平衡研究

为了有效解决无线传感器网络中节点能量消耗平衡的问题,基于云模型提出了一种新的刻画算法ECBC(Energy Consumption Balance based on Cloud theory).该算法首先结合节点剩余能量和数据有效传输距离定义了评价指标,并且利用云模型对该评价指标进行求解.同时,利用OPENT进行仿真实验,深入分析了影响该算法的关键因素,并且对比分析了ECBC与其它算法之间的性能状态,结果表明该算法具有较好的适应性.     

A Game Theoretic Approach for Energy-Efficient In-Network Caching in Content-Centric Networks

Recently, content-centric networking （CCN） has become a hot research topic for the diffusion of contents over the Internet. Most existing works on CCN focus on the improvement of network resource utilization. Consequently, the energy consumption aspect of CCN is largely ignored. In this paper, we propose a distributed energyefficient in-network caching scheme for CCN, where each content router only needs locally available information to make caching decisions considering both caching energy consumption and transport energy consumption. We formulate the in-network caching problem as a non-cooperative game. Through rigorous mathematical analysis, we prove that pure strategy Nash equilibria exist in the proposed scheme, and it always has a strategy profile that implements the socially optimal configuration, even if the touters are self-interested in nature. Simulation results are presented to show that the distributed solution is competitive to the centralized scheme, and has superior performance compared to other popular caching schemes in CCN. Besides, it exhibits a fast convergence speed when the capacity of content routers varies.     

加权选举的无线传感器网络协议

为了提高无线传感器网络的稳定期,提出了一种高效节能的加权选举协议。该协议使用集群策略结合链状路由算法,在异构的无线传感器网络环境下改善节能并且延长稳定期。仿真结果表明该协议在网络寿命和稳定期方面的性能都优于LEACH,SEP和HEARP。另外,实验表明在异构环境下稳定期依赖于节点的额外能量。     

随时随地 安全转换 施耐德电气CADA2U21车载转换器体验评测

正现代社会,人们的衣食住行都充斥着各种电子产品。然而,外出自驾游的时候,有时会遇到充电难的问题,找不到合适的插口是最大的原因。全球能效管理专家施耐德电气为解决车友充电难的问题推出了2.1A双USB车载转换器CADA2U21,通过汽车的点烟器就可以直接转换成USB接口和国际通用插口(含二孔插座和三脚插座),下面就让我们一起来体验一下这款产品。国际通用插口设计独创伸缩式插头CADA2U21体积为106×45×55mm,体积比普通车充要大很多,但外观设计更加稳重大气。其仿皮质的表面处理工艺高档大气,与金色PC材料搭配,手感不错。机身顶部配有一个小指示灯,能为使用者提供安全提示。产品的两侧设计了通风孔,散热功能不错。特别是采用了成本高的纯铜散热片替换了传统的散热风扇,这样一是省去了风扇的能量消耗,而且避免了车主停车时忘记拔掉车充耗光蓄电池的尴尬。     

影响电炉总能耗的因素

电弧炉能耗有好几种形式，除了主要的电能消耗外，由于碳、金属物及碳氢燃料的氧化放热反应，使得现如今化学能的消耗也十分显著。由于炼钢行业选择使用不同份额的电能及化学能，故讨论“总能量消耗”就显得更有意义。基于这个原因，我们将“非电能”能量转化为以kWh(千瓦时)为单位的等价能量，这是因为kWh较常见(即使它不是公制单位)。     

甬杭地区天然气管道的设计优化

根据甬杭地区天然气用户的情况和需求,确定了合理的天然气长输管道线路走向和输气站场、压气站的设置,并根据具体情况,有针对性地进行了有关管道通过城镇地段的处理、天然气的计量交接和调峰的设计优化,可以有效地降低管道建设的建设投资,减少生产运行的能量消耗,最大限度地提高管道建设及运行的综合经济效益。     

浅谈电炉开车率对电石能耗的影响

阐述了在设备管理中电炉的开车率对电石能耗的影响，并提出了相应的解决办法。