نتایج جستجو برای: environmental standard limits
تعداد نتایج: 977848 فیلتر نتایج به سال:
The European Standard on sleeping bag requirements (EN 13537:2002) describes a procedure to determine environmental temperature limits for safe usage of sleeping bags regarding their thermal insulation. However, there are several possible sources of error related to this procedure. The main aim of this work was to determine the influence of the various measuring parameters on the acuity of the ...
A practical analytical method was developed for the routine analysis of perchlorate in environmental and drinking-water samples by liquid chromatography-electrospray ionization mass spectrometry (LC/ESI-MS) using an anion exchange column. By using (18)O-enriched perchlorate as an internal standard, the limits of quantification of perchlorate determined by tenfold of the signal-to-noise ratio an...
A capillary column gas chromatographic/high resolution mass spectrometric method was developed for the determination of monobromopolychlorodibenzo-p-dioxins (BPCDDs) in environmental samples. The mass spectrometer was operated at high resolution (> 10,000) in the selected ion monitoring mode with magnet switching among tetra through octa groups to achieve low or subpicogram detection limits. St...
An increasingly common type of environmental policy instrument limits the carbon intensity of transportation and electricity markets. In order to extend the policy’s scope beyond point-of-use emissions, regulators assign each competing fuel an emission intensity rating for use in calculating compliance. I show that welfare-maximizing ratings do not generally coincide with the best estimates of ...
MATSim is a mature and powerful traffic simulator, used for large scale traffic simulations, primarily to assess likely results of various infrastructure or road network changes. We have coupled MATSim with the BDI system GORITE to provide additional valuable functionality within MATSim, and have demonstrated this with an application combining BDI taxis with standard MATSim traffic agents. Alth...
The importance of knowing the water quality status with use macroinvertebrates diversity gives an establishment to proper practices prevent pollution in Surigao River, City, Philippines. Riparian, Channel, and Environmental Inventory were used describing vegetation three-sampling stations. occurrence was supported by selected physicochemical parameters, WQI, ASPT. RCE scores for three sampling ...
Jarosite released from zinc metal extraction process is hazardous in nature and its world wide disposal has become a major environmental concern. In this study, an attempt has been made to immobilise and recycle the jarosite released from Hindustan Zinc Limited, India, using CCRs, so called fly ash, and clay soil. Results revealed that the particle size of jarosite was finer than that of CCRs a...
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