A new method of alternating shooting of two different seismic sources for deep geophysical surveys.

In the latest geophysical survey crossing the Ninety East Ridge of the Indian Ocean, a new method was employed to perform proportional double seismic source excitation and synchronously receive signals from the sea surface and the seabed. The two seismic sources used for excitation were two sets of gun arrays with different energies and dominant frequencies, a G gun array and a Bolt gun array. The G gun array consisted of 3 G.

[Impact of early enteral nutrition on the intestinal motility of patients after esophagectomy].

Objective: To assess the impact of early enteral nutrition (EN) on the intestinal motility of patients after esophagectomy.

Methods: Thirty-five consecutive patients undergoing esophagectomy for esophageal cancer by a single surgical team from the Peking University Cancer Hospital from June 2011 to July 2011 were enrolled. Patients were randomly divided into EN group (n=20) and parenteral nutrition group (control group, n=15) within 24 h after esophagectomy procedure.