background: 3dcrt (three-dimensional conformal radiotherapy) and imrt (intensity-modulated radiotherapy) has provided us with tools to delineate the radiation dose distribution of tumor targets. however, the precision of radiation can be compromised by respiratory motion, which usually limits the geometric and dosimetric accuracy of radiotherapy. the purpose of this study is to evaluate the imp...

conclusions our study demonstrated that 3d tvs has a good efficacy and reliable agreement with hysteroscopy in diagnosis of uterine lesions among infertile women. therefore, it can decrease the number of diagnostic hysteroscopies. results totally, 153 women were recruited in the investigation. patients aged 30.78 ± 4.79 years in average and the duration of infertility was 4.2 ± 2.91 years among...

introduction: excessive temperature rise during drilling of the mandible for dental implant placement might damage adjacent osseous tissues. various factors affect temperature rise, including the geometrical parameters of surgical drills, one of which is the drill bit head angle. the aim of this research was to determine suitable drill bit head angle to induce minimum temperature rise during ma...

N o v e m b e r / D e c e m b e r 1 9 9 9 I E E E S o f t w a r e 1 9 ince 1967, when a group of people from a variety of disciplines (most of whom would now be identified as computer scientists) met to discuss “Software Engineering”in southern Germany, computer scientists have discussed SE as if it were a subfield of computer science. Within CS departments we find people who specialize in auto...

Finite element method in pavement analysis is a type of mechanistic analysis that has widely been used by road and transportation engineers these days. This method is used with related programs such as ABAQUS/CAE which is one of the powerful software on this task. Modeling in this software has been developed from 2D static models to 3D dynamic models which are closer to reality due to the more ...

A hundred years ago officers entering the Royal Navy took an exam where they had to draw a mouse-trap. At the time there was much discussion, and some despair, about competence, and about teaching. For amateurs, drawing manuals provided instructions on how to render a still life in 3D, or draw a running figure, tasks that would now be effortless given current software. Today much debate about d...