Does Density Ratio Significantly Affect Turbulent Flame Speed?

In order to experimentally study whether or not the density ratio substantially affects flame displacement speed at low and moderate turbulent intensities, two stoichiometric methane/oxygen/nitrogen mixtures characterized by the same laminar flame speed = 0.36 m/s, but substantially different were designed using (i) preheating from = 298 to 423 K in order to increase , but to decrease , and (ii) dilution with nitrogen in order to further decrease and to reduce back to the initial value. As a result, the density ratio was reduced from 7.

Visibility enhancement of common bile duct for laparoscopic cholecystectomy by vivid fiber-optic indication: a porcine experiment trial.

Bile duct injury (BDI) is the most serious iatrogenic complication during laparoscopic cholecystectomy (LC) and occurs easily in inexperienced surgeons since the position of common bile duct (CBD) and its related ductal junctions are hard to precisely identify in the hepatic anatomy during surgery. BDI can be devastating, leading to chronic morbidity, high mortality, and prolonged hospitalization. In addition, it is the most frequent injury resulting in litigation and the most likely injury associated with a successful medical malpractice claim against surgeons.

A solitary congenital self-healing histiocytosis. Report of a case and review of the literature.

Congenital self-healing histiocytosis (CSHH), and especially the solitary variant, is a rare primary skin disorder. We report on a newborn with a congenital solitary ulcerated skin nodule. Extracutaneous involvement was not found.

Rhabdomyosarcoma of the vagina in a postmenopausal woman: report of a case and review of the literature.

Most rhabdomyosarcomas (RMSs) of the female genital tract occur in infants and young children as sarcoma botryoides. Vaginal RMS occurring in a postmenopausal woman is extremely rare. To our knowledge, only three vaginal RMSs have been reported in patients who were over 50 years of age.

Krukenberg tumor in pregnancy with delivery of a normal baby: a case report.

Successful termination of a pregnancy and delivery of a normal infant in a young woman with Krukenberg tumor is reported. This association has rarely been described previously. The persistent gastrointestinal symptoms mimicking the early nausea and vomiting of pregnancy mask the presentation of a tumor in the stomach.