GRADUATION in Play with Other Systems of Meaning in the Enactment of Interpersonal Relations

Over the past two decades the quantity and scope of research drawing on the system of APPRAISAL in SFL has massively expanded.It is reasonable to claim that the majority of these studies have foregrounded the subsystems of ATTITUDE and ENGAGEMENT.Our aim in contributing to this special issue celebrating two decades of APPRAISAL research is to focus on the subsystem of GRADUATION.We do so in descriptive accounts of three studies exploring the role of GRADUATION in the enactment of social relations and the building of affiliative communities.The intended contribution is two-fold.Together the studies provide an indication of the progressive development and application of this dimension of SFL theory.Specifically they range from analyses of written academic discourse to the semiosis of body language,and studies of English to Khorchin Mongolian.While each study foregrounds the interpersonal function of GRADUATION we do not suggest that one can attend to this in isolation.The thread that unites the studies is an emphasis on the ways in which expressions of GRADUATION always co-instantiate or couple with choices in other systems in the enactment of social relations,with different kinds of coupling differently supporting bonds for affiliation.

利用LM26400Y稳压器为多重电轨系统供电

现今典型的电子系统均设有多条直流电压轨由负载点稳压器来供电。供应这些稳压器的输入电轨可以是交流电适配器、中间总线、电池又或是一个USB电源轨。通常，最好是能找到一。个电源解决方案能够处理相对比较宽阔的输入范围，而且有一定的集成度和简单易用。