Pesticide contamination of groundwater is a major concern in agricultural areas. Of the many remediation technologies developed in the last decade, zero-valent iron is among the most studied. Nanoscale zero-valent iron (nZVI), with its unique properties and high surface area, enhances many of the advantages of traditional iron remediation. Unfortunately, studies comprehensively examining the utility of iron nanoparticles for pesticide remediation are lacking. The intent of this work is to survey the effectiveness of iron nanoparticles for several common chlorinated pesticides and to comprehensively study the reaction kinetics.Specifically, this study examined the effectiveness of iron nanoparticles for the treatment of the herbicides alachlor, atrazine, dicamba and picloram. Iron nanoparticles were synthesized by the borohydride reduction method and characterized using transmission electron microscopy, X-ray diffraction and Brunauer-Emmett-Teller (BET) specific surface area analysis. The resulting particles had an average diameter of 35 nm and a N2-BET specific surface area of 25 m(2) g(-1). Of the compounds studied, only alachlor degraded in the presence of nZVI. The surface area normalized pseudo first-order rate constant (kSA) for alachlor dechlorination by nZVI was found to be 38.5 x 10(-5) L h(-1) m(-2) (R(2) = 0.999). The primary reaction by-product was identified as dechlorinated alachlor. The effect of ionic strength was also examined. The results suggested that nZVI might be a viable option for both site remediation and low volume, high concentration pesticide waste treatment.

关键词：农药；地下水；污染；水减轻污染；废物处理；反应动力学；建模

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A building automation system is a computer-based control system generally installed in buildings to control and monitor several mechanical and electrical equipment such as ventilation, lighting, power systems, fire systems, and security systems. The building automation system includes hardware as well as software, which are configured using various protocols such as C-bus and profibus. In addition, commercial building automation systems comprise of various products such as HVAC control systems, security and access control systems, and lighting control systems.The Global Commercial Building Automation market is expected to grow at a steady rate during the period 2012-2016. The market was dominated by the Americas in 2012, followed by the EMEA region. Some of the major vendors in the Global Commercial Building Automation market are Johnson Controls, Inc., Honeywell International Inc., Schneider Electric SA., and Siemens AG. The overall market is expected to grow at a CAGR of 3.64 percent during the forecast period.

关键词：楼宇自动化系统；计算机；控制系统；机械；电气设备

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关键词：移动互联网；中国移动；微信

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移动设备与PC的操作系统、显示屏、操作等种种差异，移动互联网的服务及基于服务的盈利模式也有较大差异，因此在目前运营商探索各自服务的盈利模式的环境下，对于移动互联网可行的盈利模式的研究极具意义。本文从中国移动互联网市场各参与方参与方式的视角进行探究，认为移动互联网盈利模式主要有四种：O2O模式；广告模式；销售盈利模式；手机游戏模式。

关键词：移动互联网；模式；盈利

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An MES is manufacturing software that helps manage manufacturing control operations. The software helps improve operational performance by automating, executing, and managing manufacturing operations such as operation scheduling, lot tracking, resource allocation and control, plant maintenance, labor planning, data acquisition and collection, and quality assurance and process control. In essence, an MES acts as a communication system between the various parts of a plant and provides an enterprise-wide record system.The Global MES market is expected to grow at a steady rate during the period 2012-2016. The market was dominated by the EMEA region in 2012, followed by North America. Some of the major vendors in the Global MES market are Invensys plc, GE Co., Rockwell Automation Inc., and Siemens AG. The overall market is expected to grow at a CAGR of 11.71 percent during the forecast period.

关键词：制造软件（MES）；管理生产；控制操作；自动化；运营绩效

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A fixed satellite service (FSS) is a service that uses geosynchronous satellites for broadcasting purposes such as TV and radio, telecommunications, and satellite communication used by government and military organizations. The satellites used for FSS generally have a low power output. In addition, they require larger dish-style antennae for reception. Currently, there are almost 416 active geosynchronous satellites providing services across the globe. However, the study is restricted to only 300 satellites offering FSS through their transponders. In addition, the report covers almost 90 new satellites that are expected to be launched by several FSS operators during the period 2012-2016.

关键词：固定卫星服务（FSS）；地球同步卫星；广播用途；卫星通信服务

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The current article structures the knowledge and requirements for the (system dynamics) modeling of distributed actions in the intelligent transportation systems from the perspective of the sociology of technology

关键词：电子信息；智能交通；系统动力学；建模

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关键词：智慧城市；公共服务平台

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关键词：价格垄断；反垄断；电信业

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关键词：电信业务；移动数据；互联网收入

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