نتایج جستجو برای: environmental standard limits
تعداد نتایج: 977848 فیلتر نتایج به سال:
The performance of an X-bar chart is usually studied under the assumption that the process standard deviation is well estimated and does not change. This is, of course, not always the case in practice and X-bar charts are not robust against errors in estimating the process standard deviation or changing standard deviation. In this paper, the use of an exponentially weighted moving average (EW...
Control charts with estimated control limits are widely used in practice. Common practice in control chart theory is to estimate the control limits using data from the process and once the process is determined to be in control to treat the resulting control limits as though fixed. Little is known about the run length distributions of these charts when the fact that control limits are estimated...
Abstract Direct detection experiments obtain 90% upper limits on the elastic scattering cross sections of dark matter with nucleons assuming point-like interactions and standard astrophysical cosmological parameters. In this paper we provide a recasting from XENON1T, PICO-60, CRESST-III DarkSide-50 include them in micrOMEGAs. The code can then be used to directly impose constraints these generi...
This paper reviews developments in both environmental economics and ecological economics with respect to their progress towards environmental interdisciplinarity and towards providing solutions to environmental problems. The concepts, methods, theories and assumptions of each field of knowledge are reviewed and the extent to which they depart from the dominant neoclassical paradigm of economics...
T ackling climate change, avoiding environmental degradation, reducing inequality and eliminating poverty are all key issues for international policy in the 21st century. Is it possible to achieve progress on poverty while remaining within environmental limits? What role can global agreements play in promoting positive action on both environmental and development issues? Fortunately, the timeta...
The concept of sustainable development has become the organizing framework for much economic, social and environmental policy because it meets a policy need. Specifically, it has the potential to address environmental issues in a way that is more consistent with economic and social aspirations than the emphasis on ‘limits to growth’, which was characteristic of much environmental thinking in th...
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