Peristalsis of Carreau-Yasuda fluid is investigated. Analysis is carried out in the presence of velocity slip and convective boundary conditions. Thermal conductivity of the fluid is taken to be temperature dependent....Peristalsis of Carreau-Yasuda fluid is investigated. Analysis is carried out in the presence of velocity slip and convective boundary conditions. Thermal conductivity of the fluid is taken to be temperature dependent. Lubrication analysis is used in the formulation of the problem. Resulting nonlinear system of equations is solved numerically. Impact of embedded parameters on the quantities of interest is examined through graphs and tables. Comparison of the behavior of the Carreau-Yasuda, Carreau and Newtonian fluid models is presented. Results show that the heat transfer rate at the wall for the Carreau fluid model is large when compared with the Newtonian or the Carreau-Yasuda fluid model. Also the heat transfer rate at the wall decreases with increase in the velocity slip and variable thermal conductivity parameters. Further, an increase in the Biot number reduces the fluid temperature by a considerable amount.展开更多
Honey was serially diluted with different percentages of glucose, fructose and water and each was analysed rheologically at room temperature of 27°C. Pure honey exhibits thixotropic time-dependent rheological beh...Honey was serially diluted with different percentages of glucose, fructose and water and each was analysed rheologically at room temperature of 27°C. Pure honey exhibits thixotropic time-dependent rheological behaviour, the behaviour of glucose and fructose solutions in water (a Newtonian solvent) tends towards near Newtonian. The rheological profiles of pure and adulterated honey samples were determined using RV DV-III Ultra Programmable Rheometer at low rates of share. A Structural Kinetic Model was developed which provided good correlations with the rheological data. The new model was used to classify samples using their average molecular weights as one of the distinguishing parameters. Also the order of the kinetics in the new model suggests the number of active components in the “honey” undergoing deformation as 3. Carreau-Yasuda model was also improved upon to provide an independent assessment of average molecular weight of samples.展开更多
Scholars have attempted to find a common pattern of thought to summarize Takeuchi Yoshimi’s arguments on the relationship between subject and knowledge,literature and politics,and event and history,regardless of thei...Scholars have attempted to find a common pattern of thought to summarize Takeuchi Yoshimi’s arguments on the relationship between subject and knowledge,literature and politics,and event and history,regardless of their diversity,under several key words.These attempts highlight Takeuchi’s primary concerns.However,existing studies of Takeuchi rarely point out his idiosyncratic understanding of the“eschatological,”which is both esthetic and horizon-determining because Takeuchi invariably tends to refer to“eschatology”despite his efforts to avoid theorizing it systematically.Considering that the literature on Takeuchi hardly does justice to this aspect of his writing,the present article intends to emphasize it.The article argues that“eschatology”emphasizes the element of contingency in the existential process of things,as well as its transformations,developments,and disappearance.Furthermore,this article focuses on the unpresentable nature of things in a state of so-called“nothingness.”展开更多
文摘Peristalsis of Carreau-Yasuda fluid is investigated. Analysis is carried out in the presence of velocity slip and convective boundary conditions. Thermal conductivity of the fluid is taken to be temperature dependent. Lubrication analysis is used in the formulation of the problem. Resulting nonlinear system of equations is solved numerically. Impact of embedded parameters on the quantities of interest is examined through graphs and tables. Comparison of the behavior of the Carreau-Yasuda, Carreau and Newtonian fluid models is presented. Results show that the heat transfer rate at the wall for the Carreau fluid model is large when compared with the Newtonian or the Carreau-Yasuda fluid model. Also the heat transfer rate at the wall decreases with increase in the velocity slip and variable thermal conductivity parameters. Further, an increase in the Biot number reduces the fluid temperature by a considerable amount.
文摘Honey was serially diluted with different percentages of glucose, fructose and water and each was analysed rheologically at room temperature of 27°C. Pure honey exhibits thixotropic time-dependent rheological behaviour, the behaviour of glucose and fructose solutions in water (a Newtonian solvent) tends towards near Newtonian. The rheological profiles of pure and adulterated honey samples were determined using RV DV-III Ultra Programmable Rheometer at low rates of share. A Structural Kinetic Model was developed which provided good correlations with the rheological data. The new model was used to classify samples using their average molecular weights as one of the distinguishing parameters. Also the order of the kinetics in the new model suggests the number of active components in the “honey” undergoing deformation as 3. Carreau-Yasuda model was also improved upon to provide an independent assessment of average molecular weight of samples.
基金National Basic Research Program of China (973 Program,2009CB522300) National Natural Science Foundation of China(30830113)+1 种基金Chinese Academy of Sciences (KSCX1-YW-R-24KSCX2-YW-G-025)
文摘Scholars have attempted to find a common pattern of thought to summarize Takeuchi Yoshimi’s arguments on the relationship between subject and knowledge,literature and politics,and event and history,regardless of their diversity,under several key words.These attempts highlight Takeuchi’s primary concerns.However,existing studies of Takeuchi rarely point out his idiosyncratic understanding of the“eschatological,”which is both esthetic and horizon-determining because Takeuchi invariably tends to refer to“eschatology”despite his efforts to avoid theorizing it systematically.Considering that the literature on Takeuchi hardly does justice to this aspect of his writing,the present article intends to emphasize it.The article argues that“eschatology”emphasizes the element of contingency in the existential process of things,as well as its transformations,developments,and disappearance.Furthermore,this article focuses on the unpresentable nature of things in a state of so-called“nothingness.”
