Objectives:To share a concept analysis of social movement aimed at advancing its application to evidence uptake and sustainability in health-care.Methods:We applied Walker and Avant method to clarify the concept of so...Objectives:To share a concept analysis of social movement aimed at advancing its application to evidence uptake and sustainability in health-care.Methods:We applied Walker and Avant method to clarify the concept of social movement in the context of knowledge uptake and sustainability.Peer-reviewed and grey literature databases were systematically searched for relevant reports that described how social movement action led to evidence-based practice changes in health and community settings.Titles,abstracts and full texts were reviewed independently and in duplicate,resulting in 38 included articles.Results:Social movement action for knowledge uptake and sustainability can be defined as individuals,groups,or organizations that,as voluntary and intrinsically motivated change agents,mobilize around a common cause to improve outcomes through knowledge uptake and sustainability.The 10 defining attributes,three antecedents and three consequences that we identified are dynamic and interrelated,often mutually reinforcing each other to fortify various aspects of the social movement.Examples of defining attributes include an urgent need for action,collective action and collective identity.The concept analysis resulted in the development of the Social Movement Action Framework.Conclusions:Social movement action can provide a lens through which we view implementation science.Collective action and collective identity e concepts less frequently canvassed in implementation science literature e can lend insight into grassroots approaches to uptake and sustainability.Findings can also inform providers and change leaders on the practicalities of harnessing social movement action for realworld change initiatives.By mobilizing individuals,groups,or organizations through social movement approaches,they can engage as powered change agents and teams that impact the individual,organizational and health systems levels to facilitate knowledge uptake and sustainability.展开更多
This paper presents an overview of experimental investigations conducted at China University of Mining and Technology Beijing(CUMTB) on roadway excavation using large-scale geomechanical model tests.The simulated sedi...This paper presents an overview of experimental investigations conducted at China University of Mining and Technology Beijing(CUMTB) on roadway excavation using large-scale geomechanical model tests.The simulated sedimentary rocks are composed by alternating layers of sandstone, mudstone and coal seam inclined at varied angles with respect to the horizontal including 0°, 45°, 60°, and 90°. During the excavation, infrared thermography was employed to detect the thermal response of the surrounding rocks under excavation. The obtained raw thermograms were processed using denoising algorithm, data reduction procedure and Fourier analysis. The infrared temperature(IRT) characterizes the overall rock response; the processed thermal images represent the structural behavior, and the Fourier spectrum describes damage development in the frequency domain. Deeper understanding was achieved by the comparative analyses of excavation in differently inclined rock masses using the image features of IRTs, thermal images and Fourier spectra.展开更多
Quantitative description of desorption stages of coalbed methane is an important basis to objectively understand the production of coalbed methane well,to diagnose the production state,and to optimize the management o...Quantitative description of desorption stages of coalbed methane is an important basis to objectively understand the production of coalbed methane well,to diagnose the production state,and to optimize the management of draining and collection of coalbed methane.A series of isothermal adsorption experiments were carried out with 12 anthracite samples from 6 coalbed methane wells located in the south of the Qinshui Basin,based on the results of isothermal adsorption experiments,and an analytical model was developed based on the Langmuir sorption theory.With the model,a numerical method that adopts equivalent desorption rate and its curve was established,which can be used to characterize the staged desorption of coalbed methane.According to the experimental and numerical characterizations,three key pressure points determined by the equivalent desorption rate curvature that defines pressure-declining desorption stage,have been proposed and confirmed,namely,start-up pressure,transition pressure and sensitive pressure.By using these three key pressure points,the process of coalbed methane desorption associated with isothermal adsorption experiments can be divided into four stages,i.e.,zero desorption stage,slow desorption stage,transition desorption stage,and sensitive desorption stage.According to analogy analysis,there are differences and similarities between the processes of coalbed methane desorption identified by isothermal adsorption experiments and observed in gas production.Moreover,it has been found that larger Langmuir volume and ratio of Langmuir constants are beneficial to earlier advent of steady production stage,whereas it is also possible that the declining production stage may occur ahead of schedule.展开更多
文摘Objectives:To share a concept analysis of social movement aimed at advancing its application to evidence uptake and sustainability in health-care.Methods:We applied Walker and Avant method to clarify the concept of social movement in the context of knowledge uptake and sustainability.Peer-reviewed and grey literature databases were systematically searched for relevant reports that described how social movement action led to evidence-based practice changes in health and community settings.Titles,abstracts and full texts were reviewed independently and in duplicate,resulting in 38 included articles.Results:Social movement action for knowledge uptake and sustainability can be defined as individuals,groups,or organizations that,as voluntary and intrinsically motivated change agents,mobilize around a common cause to improve outcomes through knowledge uptake and sustainability.The 10 defining attributes,three antecedents and three consequences that we identified are dynamic and interrelated,often mutually reinforcing each other to fortify various aspects of the social movement.Examples of defining attributes include an urgent need for action,collective action and collective identity.The concept analysis resulted in the development of the Social Movement Action Framework.Conclusions:Social movement action can provide a lens through which we view implementation science.Collective action and collective identity e concepts less frequently canvassed in implementation science literature e can lend insight into grassroots approaches to uptake and sustainability.Findings can also inform providers and change leaders on the practicalities of harnessing social movement action for realworld change initiatives.By mobilizing individuals,groups,or organizations through social movement approaches,they can engage as powered change agents and teams that impact the individual,organizational and health systems levels to facilitate knowledge uptake and sustainability.
基金provided by the Special Funds for the Major State Basic Research Project(No.2006CB202200)the Innovative Team Development Project of the state Educational Ministry of China(No.IRT0656)
文摘This paper presents an overview of experimental investigations conducted at China University of Mining and Technology Beijing(CUMTB) on roadway excavation using large-scale geomechanical model tests.The simulated sedimentary rocks are composed by alternating layers of sandstone, mudstone and coal seam inclined at varied angles with respect to the horizontal including 0°, 45°, 60°, and 90°. During the excavation, infrared thermography was employed to detect the thermal response of the surrounding rocks under excavation. The obtained raw thermograms were processed using denoising algorithm, data reduction procedure and Fourier analysis. The infrared temperature(IRT) characterizes the overall rock response; the processed thermal images represent the structural behavior, and the Fourier spectrum describes damage development in the frequency domain. Deeper understanding was achieved by the comparative analyses of excavation in differently inclined rock masses using the image features of IRTs, thermal images and Fourier spectra.
基金supported by National KeyBasic Research Program of China (Grant No. 2009CB219605)Key Project of National Natural Science Foundation of China (Grant No.40730422)Grand Science and Technology Special Project of China(Grant No. 2011ZX05034-04)
文摘Quantitative description of desorption stages of coalbed methane is an important basis to objectively understand the production of coalbed methane well,to diagnose the production state,and to optimize the management of draining and collection of coalbed methane.A series of isothermal adsorption experiments were carried out with 12 anthracite samples from 6 coalbed methane wells located in the south of the Qinshui Basin,based on the results of isothermal adsorption experiments,and an analytical model was developed based on the Langmuir sorption theory.With the model,a numerical method that adopts equivalent desorption rate and its curve was established,which can be used to characterize the staged desorption of coalbed methane.According to the experimental and numerical characterizations,three key pressure points determined by the equivalent desorption rate curvature that defines pressure-declining desorption stage,have been proposed and confirmed,namely,start-up pressure,transition pressure and sensitive pressure.By using these three key pressure points,the process of coalbed methane desorption associated with isothermal adsorption experiments can be divided into four stages,i.e.,zero desorption stage,slow desorption stage,transition desorption stage,and sensitive desorption stage.According to analogy analysis,there are differences and similarities between the processes of coalbed methane desorption identified by isothermal adsorption experiments and observed in gas production.Moreover,it has been found that larger Langmuir volume and ratio of Langmuir constants are beneficial to earlier advent of steady production stage,whereas it is also possible that the declining production stage may occur ahead of schedule.
