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111.
We analyze data from a complex repeated measures experiment directed at the evaluation of the response to an electric stimulus
applied to mussel nerves under 5 different salinity levels. We discuss the form of the relation between the response and the
different salinity levels, as well as the choice of an adequate within subjects covariance structure that includes random
effects and autoregressive models. 相似文献
112.
Julio Videras Ann L. OwenEmily Conover Stephen Wu 《Journal of Environmental Economics and Management》2012,63(1):35-50
We examine how social relationships are related to pro-environment behaviors. We use new data from a nationally representative US sample to estimate latent cluster models in which we describe individuals' profiles of social ties with family, neighbor, and coworkers along two dimensions: intensity of connections and pro-environment norms. While our results confirm the link between social ties and economic behaviors, we show that ties among relatives, neighbors, and coworkers are not perfect substitutes. In particular, we observe consistent relationships between green family profiles and altruistic and community-based behaviors. We also find that the effect of coworker ties is visible for cost-saving activities and altruistic behaviors, and that neighbors matter for working with others in the community to solve a local problem, volunteering, and recycling. 相似文献
113.
Roberto García Fernández Consuelo Pizarro García Antonio Gutiérrez Lavín Julio L. Bueno de las Heras José Juan Pis 《Waste management (New York, N.Y.)》2013,33(5):1151-1157
The aim of this work consists on determining biomass fuels properties and studying their relation with fixed and variable costs of stores and handling systems. To do that, dimensions (length and diameter), bulk density, particle density and durability of several brands and batches of wood pellets and briquettes were tested, according to international standards. Obtained results were compared with those in literature. Bulk density tests were applied for several other biomass fuels too, and later used to determinate which ones of all the biomass-fuels tested are economically more profitable for a typical transport/store system made of a screw conveyor and a concrete bunker silo. 相似文献
114.
115.
Philip DeKoninck Julio Jimenez Francesca M. Russo Ryan Hodges Eduard Gratacós Jan Deprest 《黑龙江环境通报》2014,34(10):977-981
116.
Deposition monitoring networks: what monitoring is required to give reasonable estimates of ammonia/ammonium? 总被引:3,自引:0,他引:3
Erisman JW Hensen A Mosquera J Sutton M Fowler D 《Environmental pollution (Barking, Essex : 1987)》2005,135(3):419-431
Deposition is one of the main loss terms for ammonia and ammonium from the atmosphere. It is also the input for ecosystems that can lead to drastic changes and effects. Deposition networks are needed to evaluate the need and the effect of policies to reduce nitrogen emissions, but also for studying deposition parameters and for developing deposition models. As with ambient concentrations of ammonia, deposition, especially dry deposition, varies strongly in space and in time. Furthermore, the bi-directional surface-atmosphere exchange of ammonia makes the combination of ambient concentration measurements with inferential models inadequate. Developing deposition monitoring networks with reasonable accuracy and representativeness is therefore not straightforward. In Europe several projects have addressed deposition monitoring. From these results it is concluded that a monitoring strategy should consist of a network with a limited amount of super sites combined with a larger number of sites where low cost methods are applied, together with models for generalisation. 相似文献