A simple thermal oxidation-etching process was developed to translate vertical silicon nanowire arrays into silica nanotube arrays. The obtained nanotubes perfectly retain the orientation of original silicon nanowire arrays. The inner tube diameter ranges from 10 to 200 nm. High-temperature oxidation produces relative thick, rigid, and pinhole-free walls that are made of condensed silica. This ...

The measurement of dynamic blood pressure has been of interest to physiologists and physicians since 1732, when Reverend Stephen Hales measured the blood pressure of a horse by using a vertical glass tube . Methodology has advanced impressively since Reverend Hales's day, but with increased technical capability has come greater complexity of instrumentation, so that few physicians today have a ...

This work presents the preliminary design of a PGNAA (Prompt Gamma Neutron Activation Analysis) facility at the TRIGA IPR-R1 research reactor of the CDTN. The results of experimental and calculated neutron flux in a vertical tube are presented and discussed. The results confirm the technical feasibility of the installation of PGNAA at the TRIGA reactor and the possibility of enhancing the appli...

INTRODUCTION Prolapse of the fallopian tube after hysterectomy is a rare but known complication. Cases of prolapse of the fallopian tube through the vaginal vault have been reported after abdominal, vaginal or laparoscopic hysterectomies. This is the first case report to the best of our knowledge on the prolapse of a fallopian tube through an abdominal wound after caesarean section. CASE PRES...

Usually, vertical drains are widely used to improve land reclamation and construction of urban planning, transport road construction, agriculture. Vertical drainage systems that use pumped wells, open dug or tube wells. There calculation methods based on pumping curves the filtration equation hydraulic drainage. In proposed system, jet apparatus is in systems. Jet pumps designed such a way they...