MRI: Acquisition of a Scanning Electron Microscopy/Energy Dispersive X-ray Spectroscopy System for Multi-Disciplinary Research and Education

0618924本MRI(主要研究仪器)提案是为拉马尔大学购买ASEM/EDX(扫描电子显微镜-能量色散X射线能谱)系统，用于该大学开展的教育和研究项目，特别是在工程学院和文理学院。拉马尔大学是一所非授予博士学位的机构，正在迅速发展环境和能源/材料相关研究方面的专业知识。这一发展的目标是建立其研究基础设施和能力，这两者对于有效开展目标研究领域的高级研究项目至关重要，特别是空气质量研究。拉马尔大学被各种化学工业包围，这些工业具有巨大的排放空气污染物的潜力。该大学的当务之急是发展测量空气污染物的能力。所获得的SEM/EDX将主要用于该地区采集的样品的颗粒物(PM)表征，这将为利用EPA开发的CMAQ(社区多尺度空气质量)、CMB(化学物质平衡)、PMF(正矩阵分解)和UnMix(以其功能命名，即对化学物种的浓度进行分解)模型对该地区PM的来源解析提供必要的数据。

0618924HoThis MRI (Major Research Instrumentation) proposal is for Lamar University to acquire aSEM/EDX (Scanning Electron Microscopy - Energy Dispersive X-ray Spectroscopy) system foreducation and research projects carried out at the University, especially in the Colleges ofEngineering and Arts & Sciences. Lamar University is a non-Ph.D. granting institution and israpidly developing expertise in environmental as well as energy/material related research. Thegoal of this development is to establish its research infrastructure and capabilities, both of whichare critically needed for effectively carrying out advanced research projects in target researchareas, particularly air quality research. Lamar University is surrounded by various chemicalindustries having huge potential to emit air pollutants. An urgent need for the University is todevelop capabilities to measure air pollutants. The acquired SEM/EDX will be mainly used forparticulate matter (PM) characterization of samples collected in this area, which providenecessary data for source apportionment analysis of PM for this area employing the EPAdeveloped CMAQ (Community Multi-scale Air Quality), CMB (Chemical Material Balance),PMF (Positive Matrix Factorization) and UNMIX (named for its function, which is to unmixthe concentrations of chemical species) models.