"经营大中华,接轨全世界",一直以来是大家所关切的议题。自古以来,不乏高阶营运战略或策略的研究。但是,从各朝代或企业的兴衰更替来看,能确实将战略或策略发挥到极致而使本朝或企业永续经营且屹立不摇者,非比比皆是,此现象..."经营大中华,接轨全世界",一直以来是大家所关切的议题。自古以来,不乏高阶营运战略或策略的研究。但是,从各朝代或企业的兴衰更替来看,能确实将战略或策略发挥到极致而使本朝或企业永续经营且屹立不摇者,非比比皆是,此现象或者可以作为回归基本面(Back to Basic)与否的反思。公私部门的机构在谈远景及策略时,必须能同步回归基本面,并不断研讨如何稳健及强化体质,以奠定跳跃性发展的基础。不然,再蓝的海也有变红的一天;再好的战略或策略,也将是昙花一现。在上述要求下,大学教育的存在与发展。展开更多
Fluidized beds enable good solids mixing,high rates of heat and mass transfer,and large throughputs,but there remain issues related to fluidization quality and scale-up.In this work I review modification techniques fo...Fluidized beds enable good solids mixing,high rates of heat and mass transfer,and large throughputs,but there remain issues related to fluidization quality and scale-up.In this work I review modification techniques for fluidized beds from the perspective of the principles of process intensification(PI),that is,effective bubbling suppression and elutriation control.These techniques are further refined into(1)design factors,e.g.modifying the bed configuration,or the application of internal and external forces,and(2)operational factors,including altering the particle properties(e.g.size,density,surface area)and fluidizing gas properties(e.g.density,viscosity,or velocity).As far as two proposed PI principles are concerned,our review suggests that it ought to be possible to gain improvements of between 2 and 4 times over conventional fluidized bed designs by the application of these techniques.展开更多
文摘"经营大中华,接轨全世界",一直以来是大家所关切的议题。自古以来,不乏高阶营运战略或策略的研究。但是,从各朝代或企业的兴衰更替来看,能确实将战略或策略发挥到极致而使本朝或企业永续经营且屹立不摇者,非比比皆是,此现象或者可以作为回归基本面(Back to Basic)与否的反思。公私部门的机构在谈远景及策略时,必须能同步回归基本面,并不断研讨如何稳健及强化体质,以奠定跳跃性发展的基础。不然,再蓝的海也有变红的一天;再好的战略或策略,也将是昙花一现。在上述要求下,大学教育的存在与发展。
文摘Fluidized beds enable good solids mixing,high rates of heat and mass transfer,and large throughputs,but there remain issues related to fluidization quality and scale-up.In this work I review modification techniques for fluidized beds from the perspective of the principles of process intensification(PI),that is,effective bubbling suppression and elutriation control.These techniques are further refined into(1)design factors,e.g.modifying the bed configuration,or the application of internal and external forces,and(2)operational factors,including altering the particle properties(e.g.size,density,surface area)and fluidizing gas properties(e.g.density,viscosity,or velocity).As far as two proposed PI principles are concerned,our review suggests that it ought to be possible to gain improvements of between 2 and 4 times over conventional fluidized bed designs by the application of these techniques.
