轻骨料砼路面的耐久性

用轻骨料砼来做公路的路面，这在我国尚不多见，而在国外则早有使用。轻骨料砼的冻融耐久性明显地优于普通砼。本文介绍了国外的使用经验，以供国内借鉴。

Substitution for In Vitro and In Vivo Tests:Computational Models from Cell Attachment to Tissue Regeneration

To get an optimal product of orthopaedic implant or regenerative medicine needs to follow trialand-error analyses to investigate suitable product’s material,structure,mechanical properites etc.The whole process from in vivo tests to clinical trials is expensive and time-consuming.Computational model is seen as a useful analysis tool to make the product development.A series of models for simulating tissue engineering process from cell attachment to tissue regeneration are reviewed.The challenging is that models for simulating tissue engineering processes are developed separately.From cell to tissue regeneration,it would go through blood injection after moving out the defect;to cell disperse and attach on the scaffold;to proliferation,migration and differentiation;and to the final part-becoming mature tissues.This paper reviewed models that related to tissue engineering process,aiming to provide an opportunity for researchers to develop a mature model for whole tissue engineering process.This article focuses on the model analysis methods of cell adhesion,nutrient transport and cell proliferation,differentiation and migration in tissue engineering.In cell adhesion model,one of the most accurate method is to use discrete phase model to govern cell movement and use Stanton-Rutland model for simulating cell attachment.As for nutrient transport model,numerical model coupling with volume of fluid model and species transport model together is suitable for predicting nutrient transport process.For cell proliferation,differentiation and migration,finite element method with random-walk algorithm is one the most advanced way to simulate these processes.Most of the model analysis methods require further experiments to verify the accuracy and effectiveness.Due to the lack of technology to detect the rate of nutrient diffusion,there are especially few researches on model analysis methods in the area of blood coagulation.Therefore,there is still a lot of work to be done in the research of the whole process model method of tissue engineering.In the future,the numerical model would be seen as an optimal way to investigate tissue engineering products bioperformance and also enable to optimize the parameters and material types of the tissue engineering products.

The Relationship between Trait Emotional Intelligence and Experienced ESL/EFL Teachers' Love of English, Attitudes towards Their Students and Institution, Self-Reported Classroom Practices, Enjoyment and Creativity

This paper reports an investigation into the relationships between global trait emotional intelligence(Trait EI), as well as the four factors that constitute it(well-being, emotionality, self-control, and sociability), and quantitative data from 513 experienced ESL/EFL teachers from around the world about their love of English, their attitudes towards their students and institution, their self-reported classroom practices, their enjoyment, unpredictability and creativity. The results showed significant positive correlations. The analyses revealed that global Trait EI, well-being and sociability were significantly positively correlated with most dependent variables while emotionality and self-control were significantly correlated with a number of dependent variables. Global Trait EI and emotionality were significantly positively linked to the English proficiency of English foreign language users but not to that of the English L1 users. The pedagogical implication is that having a sufficient level of Trait EI helps teachers deal effectively with their own and their students’ emotions.