The current situation of employment quality in China allows no optimist during the period of economic transition. The disequilibrium is the most stressing characteristic in China＇s employment quality. The disequilibr...The current situation of employment quality in China allows no optimist during the period of economic transition. The disequilibrium is the most stressing characteristic in China＇s employment quality. The disequilibrium of this kind of level of the employment quality not only reflects among the areas where the economic development levels are different, but also reflects more differences of the employment quality due to the differences of the worker＇s identity in the labor market. At present, the problems of employment quality in China are mainly reflected in the labor contracts, working time, labor remuneration, job stability, safety in production, job hygiene, social security, and the respects of basic human rights and participating in the democratic management by the laborers, etc. During the economic transition period, the work relation fields in China appear some special colonies, such as the farmer＇s colony, the colony of ownership transformed enterprises, the colony of flexible persons who obtain employment themselves, whose employment quality demonstrates the questions of some peculiar ones and need special concern.展开更多
A mathematical model has been developed to describe the agglomeration process in bio-fuel fired fluidized bed combustor. Based on the balance mechanism of the adhesive force caused by liquid bonding between two parti-...A mathematical model has been developed to describe the agglomeration process in bio-fuel fired fluidized bed combustor. Based on the balance mechanism of the adhesive force caused by liquid bonding between two parti- cles and the breaking force induced by bubbles in the fiuidized bed, the model considers modified Urbain model and chemical equilibrium calculations using FactSage modeling. This model prediction accounts for the evolve- ment of the adhesive and breaking forces, and clearly demonstrates that the different composition of ash, the in- creasing liquid phase matter and the fiuidization velocity cause defluidization in fluidized bed. In this model, it is the first time to hypothesize that the bonding stress between two particles is proportional to mass fraction of liq- uid phase and inversely proportional to the diameter of particles and viscosity of liquid phase. The defluidization time calculated by this model shows good agreement with that from the experimental data.展开更多
文摘The current situation of employment quality in China allows no optimist during the period of economic transition. The disequilibrium is the most stressing characteristic in China＇s employment quality. The disequilibrium of this kind of level of the employment quality not only reflects among the areas where the economic development levels are different, but also reflects more differences of the employment quality due to the differences of the worker＇s identity in the labor market. At present, the problems of employment quality in China are mainly reflected in the labor contracts, working time, labor remuneration, job stability, safety in production, job hygiene, social security, and the respects of basic human rights and participating in the democratic management by the laborers, etc. During the economic transition period, the work relation fields in China appear some special colonies, such as the farmer＇s colony, the colony of ownership transformed enterprises, the colony of flexible persons who obtain employment themselves, whose employment quality demonstrates the questions of some peculiar ones and need special concern.
基金the support of National Natural Science Foundation of China (Project Code:50706055)
文摘A mathematical model has been developed to describe the agglomeration process in bio-fuel fired fluidized bed combustor. Based on the balance mechanism of the adhesive force caused by liquid bonding between two parti- cles and the breaking force induced by bubbles in the fiuidized bed, the model considers modified Urbain model and chemical equilibrium calculations using FactSage modeling. This model prediction accounts for the evolve- ment of the adhesive and breaking forces, and clearly demonstrates that the different composition of ash, the in- creasing liquid phase matter and the fiuidization velocity cause defluidization in fluidized bed. In this model, it is the first time to hypothesize that the bonding stress between two particles is proportional to mass fraction of liq- uid phase and inversely proportional to the diameter of particles and viscosity of liquid phase. The defluidization time calculated by this model shows good agreement with that from the experimental data.
