839 research outputs found
The return of the underground retail cannabis market? Attitudes of Dutch coffeeshop owners and cannabis users to the proposed âcannabis IDâ and the consequences they expect
Cannabis users and stigma: A comparison of users from European countries with different cannabis policies
Cannabis users and stigma: A comparison of users from European countries with different cannabis policies
Efficient and Practical Transfer Hydrogenation of Ketones Catalyzed by a Simple Bidentate MnâNHC Complex
Catalytic reductions of carbonylâcontaining compounds are highly important for the safe, sustainable, and economical production of alcohols. Herein, we report on the efficient transfer hydrogenation of ketones catalyzed by a highly potent Mn(I)âNHC complex. MnâNHC 1 is practical at metal concentrations as low as 75â
ppm, thus approaching loadings more conventionally reserved for noble metal based systems. With these low Mn concentrations, catalyst deactivation is found to be highly temperature dependent and becomes especially prominent at increased reaction temperature. Ultimately, understanding of deactivation pathways could help close the activity/stabilityâgap with Ru and Ir catalysts towards the practical implementation of sustainable earthâabundant Mnâcomplexes
Antimicrobial Susceptibilities of Aerobic Isolates from Respiratory Samples of Young New Zealand Horses
3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011, Phoenix, AZ, 17-22 September 2011This paper presents a method of mitigating the transient overshoots of DC-DC converters operating with large load disturbances. The method involves a small auxiliary power circuit with a complementary control scheme that provides a smooth absorption and release of excess energy from and to the main DC-DC converter in the events of large load changes. This control mechanism interactively mitigates the large transient overshoots which would otherwise appear at the converter output. Since the control scheme involves an adjustable-energy-storage feature, the proposed solution is effective for any level of step-load change within a pre-specified range.Department of Electronic and Information EngineeringRefereed conference pape
Antimicrobial Susceptibilities of Aerobic Isolates from Respiratory Samples of Young New Zealand Horses
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