tunnel effect


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tunnel effect

GI disease Visualization of only the open end of the stainless steel tube in rigid sigmoidoscopy. See Sigmoidoscopy.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
According to the Marine Corps' MOUT doctrinal guidance cited above: "each of the urban area's regions has distinctive characteristics that may weigh heavily in planning for MOUT." Dense areas, such as city cores, are generally more prone to provoking the 'tunnel effect' (see above), and are much more complicated to access for support platforms such as main battle tanks and armoured vehicles.
This reduces the length of the depletion region so that electrons can easily tunnel through (the tunnel effect) [17].
The P-F emission corresponds to the thermionic effect and the hopping conduction corresponds to the tunnel effect. In P-F emission, the carriers can overcome the trap barrier through the thermionic mechanism.
Here d is the diameter of the spherocylinder for CNTs or the hypothetical sphere for CB, [d.sub.tunnel] is the largest distance for tunnel effect and [d.sub.tunnel] = 0 if the tunnel effect is excluded, and [D.sub.ij] is the distance between fillers i and j.
A group at the VU University of Amsterdam only recently found out which property makes methanol such a sensitive sensor: ultimately it is a quantum tunnel effect which occurs if the internal rotation of the molecule is impeded.
Essentially, Apple's technology dynamically matches the color images being transmitted with either LED, OLED or lasers, which are converged stereoscopically to reduce the "tunnel effect" experienced in many of today's HMDs.
Most of the refrigerant in the circuit will be in one or the other of these places, and its other properties are hidden from view by the tunnel effect. The normal way of describing the condition of the fluid is as a percentage quality.
The approach to the country club was flanked with large white banners illuminated by light, creating a tunnel effect into the entrance.
The odds of success in these more serious cases are much better with open surgery, in which ureters are reimplanted into the bladder to create a longer tunnel effect that lessens the possibility of retrograde urine flow, he explained.
Also keep plants low--avoid tall ones that create a tunnel effect.
Developers Urban Solutions submitted the new plans after tests revealed passers-by could get caught in a wind tunnel effect created by the original design.
Alps TuMR element consists of an insulating layer sandwiched between highly magnetic layers that, when applied with a magnetic field, exhibits a tunnel effect in which an electric signal runs through the insulating body.