Fiber- reinforced polymer composites (FRP) are an attractive repair option for existing concrete structures. CDOT has used this material on some projects, in particular the repair of the Castlewood Canyon Bridge in 2003. Further use of the material is limited by the lack of data about its long-term performance. Laboratory durability studies have indicated that FRP performs well in conditions such as water and salt water baths, but it is difficult to fully capture field environments in the lab. This project evaluated the condition of the FRP on the Castlewood Canyon Bridge through onsite inspection and pull-off tests, and by bringing FRP back to the labs at CSU to test the tensile strength. Conclusions about the FRP condition are limited by the lack of baseline data, but there does appear to be some deterioration over time. This project also considers the influence of deicing agents on FRP properties through laboratory testing that has been initiated. Implementation: Based on results available at this time it is recommended that CDOT monitor the durability of future FRP applications through a more systematic process in which baseline data is collected and maintained and inspections including material testing are conducted at shorter intervals, perhaps every two to three years.

关键词：混凝土；力学性能；环境影响；环境监测

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2013年中国战略性新兴产业总体呈现良好发展态势，保持了相对较快的产业增速。展望2014年，全球经济将延续缓慢复苏的步伐，而中国转经济、调结构也进入攻坚期和深水区，战略性新兴产业有望迎来快速发展的最佳契机，成为引领经济增长的重要引擎。

关键词：节能环保；新一代信息技术；生物；高端装备制造；新能源；新材料；新能源汽车

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关键词：化学；生物；实验室级芯片；环境监测

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本刊以七大战略性新兴产业——节能环保、新一代信息技术、生物、高端装备制造、新能源、新材料、新能源汽车为研究重点，关注国家高层和各部委的动态，剖析国家和地方的新兴产业政策。本刊设有政策导读、领导讲话、七大战略性新兴产业本周国内外行业动态和重点企业新闻、投资专题四大板块，能够实时监测新兴产业和重点企业动态，把握新兴产业发展方向，研究发展重点，寻求发展机遇。

关键词：节能环保；新一代信息技术；生物；高端装备制造；新能源；新材料；新能源汽车

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关键词：无线通讯；贝叶斯过滤器；物联网技术；环境监测

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Real-time chemical vapor detection and analysis have broad applications in environmental monitoring, homeland security, military surveillance, and biomedical diagnosis. As an emerging new sensing technology, optical micro-ring resonator has unique advantages in developing low-cost and portable vapor sensors. This chapter introduces ring resonator vapor sensing principles, describes representative micro-ring resonator vapor sensor designs and performances, and then focuses on one special micro-ring resonator design—the optofiuidic ring resonator (OFRR), which inherently integrates the ring resonator vapor sensor and gas fluidics. The OFRR sensor has fast response to a wide spectrum of vapor analytes, with a detection limit of around 100pg. Moreover, the OFRR is a versatile sensing platform that can be integrated with micro-gas chromatography (μGC) for rapid and in situ identification of organic chemical compounds (VOCs) in complex interfering vapor mixtures. Combination with a μGC system greatly enhances the vapor detection specificity, which is one of the major limitations in optical vapor sensors. Applications of the OFRR-μGC in detection of explosives and rapid tandem-column separation of VOCs are also presented. Future research/development directions in the ring resonator vapor sensor are discussed in the end.

关键词：化学气相检测；生物医学；环境监测；环形谐振器

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The US Department of Energy (DOE) is responsible for risk reduction and cleanup of its nuclear weapons complex. DOE maintains the largest cleanup program in the world, currently spanning over a million acres in 13 states. The inventory of contaminated materials includes 90 million gallons of radioactive waste, 6.4 trillion liters of groundwater, and 40 million cubic meters of soil and debris. It is not feasible to completely restore many sites to predisposal conditions. Any contamination left in place will require monitoring, engineering controls and/or land use restrictions to protect human health and environment. Research and development efforts to date have focused on improving characterization and remediation. Yet, monitoring will result in the largest life-cycle costs and will be critical to improving performance and protection. Through an inter-disciplinary effort, DOE is addressing a need to advance monitoring approaches from sole reliance on cost- and labor-intensive point-source monitoring to integrated systems-based approaches such as flux-based approaches and the use of early indicator parameters. Key objectives include identifying current scientific, technical and implementation opportunities and challenges, prioritizing science and technology strategies to meet current needs within the DOE complex for the most challenging environments, and developing an integrated and risk-informed monitoring framework.

关键词：环境评估；监控；清洁；污染

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In conclusion, in this chapter, we have reviewed the development of high-performance fiber nanosensors for environmental monitoring applications, realized by the combination of advanced nanostructured coatings based on SWCNTs with the optical fiber technology.In particular, the chapter starts with a wide review of the state of the art of carbon nanotube-based sensors for environmental monitoring, followed by a description of the operating principle of the fiberoptic nanosensors in the FP-type reflectometric configuration. The attention is then focused on the methods so far proposed for the integration of such nanostructured materials with the optical fibers and in particular on the LB deposition, which is the technique we adopted for the fiber-optic nanosensors fabrication.

关键词：纳米传感器；环境监测；碳纳米管；光纤

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Middle-infrared (mid-IR) laser sources are in great demand for a variety of applications including molecular spectroscopy, non-invasive medical diagnostics, laser medical scalpel that make use of the ability of the laser to tune in and out of the strong absorption band of liquid water, industrial process control, environmental monitoring, atmospheric sensing and free space communication, oil prospecting, and numerous defense related applications such as infrared aircraft countermeasures, monitoring of munitions disposal, stand-off detection of explosion hazards, eye safe seekers for smart munitions and cruise missiles, covert communications systems, and injection seeding of high power chemical (e.g. HF) lasers.

关键词：激光；吸收；晶体；能量转移；环境监测

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No abstract available.

关键词：环境监测；取样；生物测定；微生物

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