排序方式: 共有36条查询结果,搜索用时 15 毫秒
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车载辐射环境巡测技术应用的探讨 总被引:2,自引:0,他引:2
简述了国内外车载辐射巡测技术应用与系统配置情况,我国各级辐射环境监测与监察机构的车载巡测技术能力现状,分析了我国车载巡测系统测试中存在的监测标准规范适用性、监测方法、校准刻度的方法和管理问题,提出环境保护部门应制定车载系统测试相关的规范和要求,建立环保系统车载系统测试和校准刻度实验室的建议。 相似文献
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A mathematical model has recently been proposed by the authors to simulate the biochemical processes that prevail in a co-digestion reactor fed with sewage sludge and the organic fraction of municipal solid waste. This model is based on the Anaerobic Digestion Model no. 1 of the International Water Association, which has been extended to include the co-digestion processes, using surface-based kinetics to model the organic waste disintegration and conversion to carbohydrates, proteins and lipids. When organic waste solids are present in the reactor influent, the disintegration process is the rate-limiting step of the overall co-digestion process. The main advantage of the proposed modeling approach is that the kinetic constant of such a process does not depend on the waste particle size distribution (PSD) and rather depends only on the nature and composition of the waste particles. The model calibration aimed to assess the kinetic constant of the disintegration process can therefore be conducted using organic waste samples of any PSD, and the resulting value will be suitable for all the organic wastes of the same nature as the investigated samples, independently of their PSD. This assumption was proven in this study by biomethane potential experiments that were conducted on organic waste samples with different particle sizes. The results of these experiments were used to calibrate and validate the mathematical model, resulting in a good agreement between the simulated and observed data for any investigated particle size of the solid waste. This study confirms the strength of the proposed model and calibration procedure, which can thus be used to assess the treatment efficiency and predict the methane production of full-scale digesters. 相似文献
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邱士军 《环境监测管理与技术》1996,8(6):45
叙述了MicrosoftWordforWindows软件在编写环境质量报告书中的应用内容。 相似文献
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模糊回归分析和数据融合方法 总被引:8,自引:2,他引:8
傅惠民 《中国安全科学学报》2002,12(6):73-76
提出一种新的模糊回归分析和数据融合方法 ,该方法能够将多种不同条件 (不同仪器、人员、环境条件等 )下的测量数据进行融合 ,特别是可以将不同量纲的测量值进行数据融合。实际应用表明 ,模糊回归分析能够很好地消除工程测量中无法通过仪器校准的系统误差 ,数据融合方法可以减小其偶然误差 ,大大提高测量精度 相似文献
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This paper examines whether the relationships between a number of characteristic limnological variables (suspended particulate matter, turbidity, Secchi depth, light attenuation, and chlorophyll a) determined for temperate lakes are consistent with the relationships found in Mediterranean lakes such as Lake Kinneret. We found that the use of published relationships between lake variables may lead to erroneous results when applied indiscriminately to other lake types. 相似文献
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