PubMed Health⌕ Search

Biomedical subjects

WM Liu

Publications and source records attributed to WM Liu.

3 recordsLinked to original sources
PubMed2000

Nonlinear effects in interference of bose-einstein condensates

Nonlinear effects in the interference of Bose-Einstein condensates are studied using exact solutions of the one-dimensional nonlinear Schrodinger equation, which is applicable when the lateral motion is confined or negligible. With the inverse scattering method, the interference pattern is studied as a scattering problem with the linear Schrodinger equation, whose potential is profiled by the initial density distribution of the condensates. Our theory not only provides an analytical framework for quantitative predictions for the one-dimensional case, it also gives an intuitive understanding of some mysterious features of the interference patterns observed in experiments and numerical simulations.

Journal Article↗
PubMed1996

One Hundred Twenty-four Laparoscopic-Assisted Vaginal Hysterectomies

Laparoscopic-assisted vaginal hysterectomy (LAVH) is not yet widely practiced in Taiwan, but interest in this operation is increasing as our knowledge of operative laparoscopy expands. From October 1994 to December 1995, 124 LAVHs were performed. The endoscopic stapler divides tissues and achieves hemostasis quite easily, but its cost is a disadvantage. Kleppinger bipolar forceps for hemostasis and scissors for division are less expensive for the average hospital. Ureteral injury is a crucial issue in LAVH, and is linked to various stages of the operation. Identifying the ureter before the operation and dissecting it after division of the infundibulopelvic ligament are essential to avoid ureteral injury.

Journal Article↗