Help


[permalink] [id link]
+
Page "Isotope separation" ¶ 28
from Wikipedia
Edit
Promote Demote Fragment Fix

Some Related Sentences

second and method
This will be more or less our general method for the second problem.
The second argument applies the method in the reverse way.
Parties that gain more than 5 % of the second votes or win at least 3 direct mandates are allocated seats in the Bundestag in proportion to the number of votes it has received ( d ' Hondt method until 1987, largest remainder method until the 2005 election, now Sainte-Laguë method ).
He developed a method of measuring the horizontal intensity of the magnetic field which was in use well into the second half of the 20th century, and worked out the mathematical theory for separating the inner and outer ( magnetospheric ) sources of Earth's magnetic field.
Encouraged by Klein, Hilbert in a second article extended his method, providing estimations on the maximum degree of the minimum set of generators, and he sent it once more to the Annalen.
This has been the second most productive method of detection, though it suffers from a substantial rate of false positives and confirmation from another method is usually considered necessary.
Even if the particles have equivalent physical properties, there remains a second method for distinguishing between particles, which is to track the trajectory of each particle.
The second method, Differential Scanning Calorimetry ( DSC ), allows for more precise determination of phase transitions and transition enthalpies.
There was shown that in this method it is possible to transport and collect individual product atoms in a fraction of a second some tens of meters away from the target area.
Particularist theories organize things already known and attempt to use these particulars of knowledge to find a method of how we know, thus answering the second question set.
A second method of determining the latitude of the observer measures the angle of elevation of a celestial pole, north in the northern hemisphere.
The second method is Conway's.
In the second method, the number of pregnancies in the study is divided by the number of menstrual cycles experienced by women in the study, and then multiplied by 1300.
In this section, we will describe a method for constructing a quantum field theory called second quantization.
In the cap-and-ball days of the mid 19th century, two revolver models, the English Tranter and the American Savage “ Figure Eight ”, used a method whereby the hammer was cocked by the shooter ’ s middle finger pulling on a second trigger below the main trigger.
Some diving instructors continue to teach single demand valve buddy-breathing as an obsolete but still useful technique ; then they show the method that has superseded it, since availability of two second stages per diver is now assumed in recreational scuba.
A second method called ' continuous blending ' is now gaining favor.
The first kind of structure is developed deliberately and is arbitrary ( for example, the method of loci ), the second one is similar to patterns and schemas and the last one takes place exclusively during text comprehension.
There are two advantages to barbecue-braising: the first is that this method now allows for browning the meat directly on the grill before the braising, and the second is that it also allows for glazing the meat with sauce and finishing it directly over the fire after the braising, effectively cooking the meat three times, which results in a soft textured product that falls right off the bone.
The second part of the Laws of Thought contained a corresponding attempt to discover a general method in probabilities.
The second method of operation, called direct impingement, is somewhat simplified.

second and laser
Paradoxically, it is possible to reduce the divergence of a laser beam by first expanding it with one convex lens, and then collimating it with a second convex lens whose focal point is coincident with that of the first lens.
However, the popular description of light being " stopped " in these experiments refers only to light being stored in the excited states of atoms, then re-emitted at an arbitrary later time, as stimulated by a second laser pulse.
Rochester's Laboratory for Laser Energetics is home to the second most powerful fusion laser in the world.
A second laser frees a fluorine atom, leaving uranium pentafluoride which then precipitates out of the gas.
In this approach the target is first compressed " normally " using a driver laser system, and then when the implosion reaches maximum density ( at the stagnation point or " bang time "), a second ultra-short pulse ultra-high power petawatt ( PW ) laser delivers a single pulse focused on one side of the core, dramatically heating it and hopefully starting fusion ignition.
In particular, the laser systems need to be able to run at high operating frequencies, perhaps one to ten times a second.
However, if the laser brightness is reduced until only a handful of photons hit the wall every second, the relative fluctuations in number of photons, i. e., brightness, will be significant, just as when tossing a coin a few times.
A second concern about the laser treatment is that if the lesion is a melanoma, and was misdiagnosed as a benign mole, the procedure might delay diagnosis.
The second method used a computer-guided laser to etch the image onto the printing plate.
The second stage burst and was destroyed by the laser blast.
The second factor that determines a laser's emission frequencies is the optical cavity or resonant cavity of the laser.
NASA research from 2011 indicates that firing a laser beam at a piece of space junk could impart an impulse of per second.
At the start of the second disc ( after mission 8 on Windows 7 reissue ), Carmen busts all of her eight criminal sidekicks out of jail so they can return to stealing, but " laser bars " are added after this to prevent another jailbreak from happening.
The second time is when he comes up from the repair machine but gets hit by Quark's gun's laser intended for DM.
It also has a slot in which a second piece is inserted representing the character's arms, both equipped with laser pistols.
The second step of the procedure uses an excimer laser ( 193 nm ) to remodel the corneal stroma.
The excimer laser uses an eye tracking system that follows the patient's eye position up to 4, 000 times per second, redirecting laser pulses for precise placement within the treatment zone.
NASA research in 2011 indicated that firing a laser beam at a piece of space junk could alter velocity by per second.
The second method uses the laser to help expel mass from the spacecraft as in a conventional rocket.
Variations of ablative propulsion include double-pulse propulsion in which one laser pulse ablates material and a second laser pulse further heats the ablated gas, laser micropropulsion in which a small laser onboard a spacecraft ablates very small amounts of propellant for attitude control or maneuvering, and space debris removal, in which the laser ablates material from debris particles in low Earth orbit, changing their orbits and causing them to reenter.

0.275 seconds.