Finite element analysis of tire thermomechanical coupling rolling resistance
Based on the essential mechanism of tire rolling resistance, a finite element analysis method of handing thermomechanical coupling for rolling resistance was proposed. In order to verify the method, rolling resistance and temperature measurement experiments of rubber wheels made of tread rubber were conducted on a measured on RRS-?? model rolling resistance testing machine. Finite element analysis of rolling resistance and temperature of the wheels were also done, the results shew consistently coincides with that of test. Then the finite element analysis method was used to predict 12.00R20 tire rolling resistance and the influence factors on rolling resistance, such as inflation pressure, vertical loads and speeds were also analyzed.
The Rolling Loss of Pneumatic Tires
Abstract Tire energy loss has long been neglected as an area of scientific concern, in favor of other performance characteristics such as traction and wear. With the advent of federally mandated fu...
Child psychiatry curricula in undergraduate medical education.
OBJECTIVE
To review the literature describing the content and time allocated to undergraduate medical education curricula in child and adolescent psychiatry and make recommendations about child and adolescent psychiatry teaching goals and curricula content.


METHOD
A literature search from 1970 to February 2007 using the key words undergraduate, curriculum, teaching, education, psychiatry, child, adolescent, and medical school, was conducted using PubMed, PsycINFO, and Web of Science.


RESULTS
There is limited agreement about curricula content for undergraduate child and adolescent psychiatry teaching programs in medical schools, with a wide range of objectives identified by different programs. On average, the time allowed for teaching child and adolescent psychiatry is small. There is also great variation in the time allocated by different medical schools. In many countries, the number of child and adolescent psychiatrists with academic appointments is limited, and child and adolescent psychiatry programs are developed and taught by a small number of teaching staff at each medical school.


CONCLUSIONS
Medical schools should reconsider the relatively low priority given to teaching child and adolescent psychiatry to medical students. The child and adolescent psychiatry profession must identify clear learning goals for a longitudinal developmentally appropriate model of child and adolescent psychiatry education commencing at an undergraduate level in medical schools and continuing through residency and fellowships. There is a need to promote national and international standards for teaching in this area and to encourage stronger collaborations between teaching staff across different medical schools.