Results 221 to 230 of about 95,623 (260)

Shape selective adsorption in cylindrical pores

Chemical Engineering Science, 2000
Grand canonical Monte Carlo simulations are performed to examine shape selectivity. A binary mixture of differently shaped isomers similar to m- and p-xylene is equilibrated in smooth cylindrical pores. Shape selectivity for the symmetric adsorbate improves non-monotonically with decreasing pore size.
S Mohanty, H.T Davis, A.V McCormick
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Shaped nanoantennas on cylindrical and planar substrate

2017 IEEE First Ukraine Conference on Electrical and Computer Engineering (UKRCON), 2017
As a rule nanoantennas represent shaped nanodipoles placed either in some media or mounted on the planar dielectric substrate. In this paper we propose some designs which are new for nanoantennas, namely, shaped silver nanodipoles like a traditional nanodipole and a shaped slotted torus nanodipole are placed on the glass circular cylindrical substrate.
Alexander Ye. Svezhentsev, Vladimir Volski, Sen Yan, Guy A. E. Vandenbosch   +3 more
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Toward Dendrimers with Cylindrical Shape in Solution

Journal of the American Chemical Society, 1997
Three approaches for the synthesis of dendrimers with poly(p-phenylene)-PPP derived cores are described. The respective limitations of these approaches are assessed in view of the goal of this research:  to make available structurally perfect, high molecular weight polymers with a dense sequence of sterically demanding dendrons.
Birol Karakaya, Wilhelm Claussen, Katrin Gessler, Wolfram Saenger, A.-Dieter Schlüter   +4 more
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On the pulse shape in a cylindrical ionization chamber

Nuclear Instruments, 1958
Abstract The fast ionization chamber, 60 l in volume, filled with argon at 10 atm, is described. The pulse shapes are calculated assuming the ionization: (a) confined to an infinitesimal volume of the chamber, (b) distributed along a straight line parallel to the axis of the chamber, (c) distributed along a straight line passing through the axis of ...
C. Cernigoi, G. Pauli, C. Poiani
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Expanding the Cylindrical ends of Shaped Tubes

Chemical and Petroleum Engineering, 2014
A method of flaring the cylindrical end sections of shaped tubes with rolling devices is described. These tubes are used in the production of heat exchangers, and also in the oil-gas industry (shaped well covers). A model of the process, which makes it possible to determine the stress-strain state and damage sustained by the tube material is proposed ...
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Rough-terrain traversability for a cylindrical shaped mobile robot

Proceedings of the IEEE International Conference on Mechatronics, 2004. ICM '04., 2004
Ground autonomous mini-mobile robots have important potential applications, such as reconnaissance, patrol, planetary exploration and military applications. To accomplish tasks on rough-terrain, control and planning methods must consider the physical characteristics of the vehicle and of its environment.
G. Reina, M. Foglia, A. Milella, A. Gentile   +3 more
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Velocity control of a cylindrical rolling robot by shape changing

Advanced Robotics, 2016
AbstractA rolling robot is developed that possesses an elliptically shaped outer surface with the ability to change shape as it rolls, resulting in a gravity-powered torque imbalance that accelerates or brakes the robot’s motion. Angular position and velocity are measured onboard and used as feedback control to trigger and define shape change actuation.
Michael G. Puopolo, Jamey D. Jacob
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Stopping of particles in cylindrically shaped dielectrics

Bulletin of the Russian Academy of Sciences: Physics, 2012
Polarization fields created in a dielectric cylinder by a moving charge are considered. They are subdivided into vortex and potential fields. Formulas for the stopping force are deduced.
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Shaping of Intense Ion Beams into Hollow Cylindrical Form

Physical Review Letters, 2000
A specifically tailored plasma lens could shape a high-energy, heavy-ion beam into the form of a hollow cylinder without loss of beam intensity. It has been experimentally confirmed that both a positive as well as a negative radial gradient of the current density in the active plasma lens can be the underlying principle.
, Neuner, , Bock, , Roth, , Spiller, , Constantin, , Funk, , Geissel, , Hakuli, , Hoffmann, , Jacoby, , Kozyreva, , Tahir, , Udrea, , Varentsov, , Tauschwitz   +14 more
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Electrode shapes for a cylindrical electron beam

British Journal of Applied Physics, 1955
The problem of obtaining the electrode shapes which will maintain a cylindrical beam of space-charge limited current reduces to the problem of solving Laplace's equation for the electrostatic potential outside the space-charge region, with the appropriate boundary conditions on the surface of the beam.
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