To satisfy the requirements of high energy density,high power density,quick response and long lifespan for energy storage systems(ESSs),hybrid energy storage systems(HESSs)have been investigated for their complementar...To satisfy the requirements of high energy density,high power density,quick response and long lifespan for energy storage systems(ESSs),hybrid energy storage systems(HESSs)have been investigated for their complementary characteristics of‘high energy density components’and‘high power density components’.To optimize HESS combinations,related indices such as annual cost,fluctuation smoothing ability as well as safety and environmental impact have to be evaluated.The multiattribute utility method investigated in this paper is aimed to draw an overall conclusion for HESS allocation optimization in microgrid.Building on multi-attribute utility theory,this method has significant advantages in solving the incommensurability and contradiction among multiple attributes.Instead of determining the weights of various attributes subjectively,when adopting the multi-attribute utility method,the characteristics of attributes and the relation among them can be investigated objectively.Also,the proper utility function and merging rules are identified to achieve the aggregate utility which can reflect comprehensive qualities of HESSs.展开更多
Water resource allocation was defined as an input-output question in this paper, and a preliminary input-output index system was set up. Then GEM （group eigenvalue method）-MAUE （multi-attribute utility theory） mod...Water resource allocation was defined as an input-output question in this paper, and a preliminary input-output index system was set up. Then GEM （group eigenvalue method）-MAUE （multi-attribute utility theory） model was applied to evaluate relative efficiency of water resource allocation plans. This model determined weights of indicators by GEM, and assessed the allocation schemes by MAUE. Compared with DEA （Data Envelopment Analysis） or ANN （Artificial Neural Networks）, the mode was more applicable in some cases where decision-makers had preference for certain indicators展开更多
This paper systematically summarizes previous measuring methods and observational instruments for the magnitude of dewfall on land surface, analyzes the characteristics of common observational instruments for land sur...This paper systematically summarizes previous measuring methods and observational instruments for the magnitude of dewfall on land surface, analyzes the characteristics of common observational instruments for land surface dewfall, and describes several basic dewfall measurement methods. Moreover, the basic principles of these methods and instruments are interpreted, and their advantages, disadvantages, and applicability are analyzed. Recommendations for the further improvement of these observational instruments and the development of dewfall measuring methods are presented, and new technologies and scientific proposals for exploiting dewfall are elucidated.展开更多
Background:The 13‐MD is a new generic instrument developed to measure general health‐related quality of life(GHRQoL).This instrument considers all aspects of health(i.e.,physical,mental,and social)in a balanced way....Background:The 13‐MD is a new generic instrument developed to measure general health‐related quality of life(GHRQoL).This instrument considers all aspects of health(i.e.,physical,mental,and social)in a balanced way.A previous study led to minor changes in the original version of the 13‐MD.The objective of this study was to confirm the validity of the modified 13‐MD.Methods:Validity was assessed with recent data from the general population of Quebec,Canada.The meta‐dimensions and items composing the 13‐MD were also subjected to a ranking procedure,which allowed to determine the most important aspects for respondents.Results:A total of 1337 French‐speaking participants were recruited with 1099 completing the 13‐MD for validation purposes and 1084 completing the ranking procedure.The 13‐MD showed very satisfactory results and confirmed to be a valid instrument.The ranking of the meta‐dimensions revealed that“Well‐being”received the most points,followed by“Sleep and energy”and“Body functioning.”Conclusion:These results will be very useful in the continuous improvement of the 13‐MD,ultimately leading to the valuation stage(i.e.,development of a value set).展开更多
基金supported by Science and Technology Foundation of State Grid Corporation of China (No.520940120036)the Key Project of the National Twelfth-Five Year Research Programme of China (No.2013BAA01B04)
文摘To satisfy the requirements of high energy density,high power density,quick response and long lifespan for energy storage systems(ESSs),hybrid energy storage systems(HESSs)have been investigated for their complementary characteristics of‘high energy density components’and‘high power density components’.To optimize HESS combinations,related indices such as annual cost,fluctuation smoothing ability as well as safety and environmental impact have to be evaluated.The multiattribute utility method investigated in this paper is aimed to draw an overall conclusion for HESS allocation optimization in microgrid.Building on multi-attribute utility theory,this method has significant advantages in solving the incommensurability and contradiction among multiple attributes.Instead of determining the weights of various attributes subjectively,when adopting the multi-attribute utility method,the characteristics of attributes and the relation among them can be investigated objectively.Also,the proper utility function and merging rules are identified to achieve the aggregate utility which can reflect comprehensive qualities of HESSs.
文摘Water resource allocation was defined as an input-output question in this paper, and a preliminary input-output index system was set up. Then GEM （group eigenvalue method）-MAUE （multi-attribute utility theory） model was applied to evaluate relative efficiency of water resource allocation plans. This model determined weights of indicators by GEM, and assessed the allocation schemes by MAUE. Compared with DEA （Data Envelopment Analysis） or ANN （Artificial Neural Networks）, the mode was more applicable in some cases where decision-makers had preference for certain indicators
基金supported by the National Science Foundation of China (Grant Nos. 40830957 and 40575006)
文摘This paper systematically summarizes previous measuring methods and observational instruments for the magnitude of dewfall on land surface, analyzes the characteristics of common observational instruments for land surface dewfall, and describes several basic dewfall measurement methods. Moreover, the basic principles of these methods and instruments are interpreted, and their advantages, disadvantages, and applicability are analyzed. Recommendations for the further improvement of these observational instruments and the development of dewfall measuring methods are presented, and new technologies and scientific proposals for exploiting dewfall are elucidated.
基金the ethics committee of the CIUSSS de l'Est de l’île de Montréal(#2021‐2389).
文摘Background:The 13‐MD is a new generic instrument developed to measure general health‐related quality of life(GHRQoL).This instrument considers all aspects of health(i.e.,physical,mental,and social)in a balanced way.A previous study led to minor changes in the original version of the 13‐MD.The objective of this study was to confirm the validity of the modified 13‐MD.Methods:Validity was assessed with recent data from the general population of Quebec,Canada.The meta‐dimensions and items composing the 13‐MD were also subjected to a ranking procedure,which allowed to determine the most important aspects for respondents.Results:A total of 1337 French‐speaking participants were recruited with 1099 completing the 13‐MD for validation purposes and 1084 completing the ranking procedure.The 13‐MD showed very satisfactory results and confirmed to be a valid instrument.The ranking of the meta‐dimensions revealed that“Well‐being”received the most points,followed by“Sleep and energy”and“Body functioning.”Conclusion:These results will be very useful in the continuous improvement of the 13‐MD,ultimately leading to the valuation stage(i.e.,development of a value set).
