This paper presents a theoretical model of the dynamics of liquid flow in an angular accelerometer comprising a porous transducer in a circular tube of liquid. Wave speed and dynamic permeability of the transducer are considered to describe the relation between angular acceleration and the differential pressure on the transducer. The permeability and streaming potential coupling coefficient of ...

In a human in vitro model of esophagitis, we investigated the genesis of esophagitis-associated dysmotility by examining HCl-induced production of inflammatory mediators in the mucosa and investigating their effect on esophageal circular muscle. Muscularis propria was removed from organ donors' esophagi, leaving the mucosal tube intact. The tube was tied at both ends, forming a sac, and filled ...

We employ a 3-dimensional magnetohydrostatic model of a horizontal flux tube, embedded in a magnetic surrounding atmosphere, to successfully reproduce the azimuthal and center-to-limb variations of the Net Circular Polarization observed in sunspot penumbrae. This success is partly due to the realistic modeling of the interaction between the flux tube and the surrounding magnetic field. Subject ...

This paper presents the experimental study of pressure and velocity fluctuations and their interdependence, in the turbulent flow impinging on arrangements of yawed circular cylinders simulating inclined tube banks with square arrangement and a pitch to diameter ratio of 1.26. Measurements were performed with hot-wires and a pressure transducer. Behaviour of fluctuating quantities is described ...

The creeping motion through a circular tube of neutrally buoyant Newtonian drops which have an undeformed radius comparable to that of the tube was studied experimentally. Both a Newtonian and a viscoelastic suspending fluid were used in order to determine the influence ofviscoelasticity. The extra pressure drop owing to the presence of the suspended drops, the shape and velocity of the drops, ...

Corresponding author: Hyeon Ju Shin, M.D., Ph.D., Department of Anesthesiology and Pain Medicine, College of Medicine, Korea University, Anam-dong 5-ga, Sungbuk-gu, Seoul 136-705, Korea. Tel: 82-2-920-5632, Fax: 82-2-928-2275, E-mail: [email protected] This manuscript was presented as an E-poster in the 88th the Korean society of anesthesiologists which was held in grand Hilton hotel, Seoul, Kor...

We use the Dirac-Born-Infeld action on Dp-brane background to find the tubular bound state of a D2 with m D0-branes and n fundamental strings. The fundamental strings may be the circular strings along the cross section of tube or the straight strings along the axial of the tube, and tube solutions are parallel to the geometry of Dp-brane background. Through the detailed analyses we show that on...

this paper presents a new model for predicting the compressive strength of steel-confined concrete on circular concrete filled steel tube (ccfst) stub columns under axial loading condition based on artificial neural networks (anns) by using a large wide of experimental investigations. the input parameters were selected based on past studies such as outer diameter of column, compressive strength...

By using the Born-Infeld action we show that the m circular fundamental strings, n D2branes and k D0-branes could become a tubular bound state which is prevented from collapsing by the magnetic force in the Melvin background. However, if the ratio m/n is larger then a critical value the tube will become unstable and collapse to zero radius. We make analyses to find the critical value and tube r...