A simplified calculation considering the three dimensional helical magnetic field and B ×∇B drift was carried out to study the effect of injection location on plasmoid drift. From the calculations different injection possibilities are considered around the torus for the experiment. A low speed single barrel pellet injector has been designed for alternative injection in LHD. A pellet is being in...

A numerical method is described which is suitable for solving the equations governing the steady motion of a viscous fluid through a slightly curved tube of circular crosssection but which is also applicable to the solution of any problem governed by the steady two-dimensional Navier-Stokes equations in the plane polar co-ordinate system. The governing equations are approximated by a scheme whi...

PURPOSE To compare the performance of the intubating laryngeal mask airway (ILMA) in assisting blind tracheal intubation with conventional tracheal tubes of different curvatures and the frequency of possible associated complications. METHODS After informed consent, 240 ASA I-II adults undergoing elective surgery participated in a randomized, single blind clinical trial to receive blind trache...

For reducing the initial GSHP investment, heat transfer efficiency of borehole exchange (BHE) system can be enhanced to reduce number or depth drilling. This paper proposes a novel and simple BHE design by changing cross-sectional shape U-tube increase BHEs. Specifically, in this study, we (1) verified reliability three-dimensional numerical model based on thermal response test (TRT) (2) compar...

BACKGROUND Irrigation of the root canal system is an essential step in the endodontic treatment. The aim of this article is to introduce continuous apical negative-pressure ultrasonic irrigation (CANUI), a new irrigation concept, and compare the characteristics of this new technique with current devices for activating the irrigant. MATERIAL AND METHODS CANUI is designed for cleaning and disin...

We have studied gas flow and particle deposition in a realistic three-dimensional (3D) model of the bronchial tree, extending from the trachea to the segmental bronchi (7th airway generation for the most distal ones) using computational fluid dynamics. The model is based on the morphometrical data of Horsfield et al. (Horsfield K, Dart G, Olson DE, Filley GF, and Cumming G. J Appl Physiol 31: 2...

Purpose – The aim of the present study is to evaluate the accuracy and efficiency of Lattice-BGK (LBGK) method application in simulation of the 3D flow through complex geometry. On the other hand, the steady flows through vascular tube with Reynolds number 10-150 and different constriction spacing ratios are simulated. Design/methodology/approach – The numerical method is based on the LGBK meth...

Aim: To describe a new and simple bicanalicular silicone intubation technique, which can be used during dacryocystorhinostomy (DCR) surgery. Method: In this method, a lacrimal canula is used to pass the silicone tube through the lacrimal canaliculi. A 26-Gauge curved lacrimal canula is inserted into one end of a silicone tube with an inner diameter of 0.50 mm and outer diameter of 0.94 mm. The ...

The actin cytoskeleton is increasingly recognized as a major regulator of pollen tube growth. Actin filaments have distinct distribution patterns and dynamic properties within different regions of the pollen tube. Apical actin filaments are highly dynamic and crucial for pollen tube growth. However, how apical actin filaments are generated and properly constructed remains an open question. Here...