Once the particles have accelerated to the required energies, separate electron and positron beams are brought into collision.

Once this occurs, the core reaches hydrostatic equilibrium: the electron degeneracy pressure is sufficient to balance gravitational pressure.

Once extracted, the upper lenses of the TEM allow for the formation of the electron probe to the desired size and location for later interaction with the sample.

Once samples have been prepared chemically, they are mounted on microscope slides using silicon oil, glycerol or glycerol-jelly and examined using light microscopy or scanning electron microscopy.

Once the high-energy electron beam has been generated, it is directed into auxiliary components such as bending magnets and insertion devices ( undulators or wigglers ) in storage rings and free electron lasers.

Once it exits the electron gun, its inertia makes the beam move away from the dynode towards the back side of the target.

Once the electron starts to " orbit " the proton, the energy becomes negative, and a bound state – namely the hydrogen atom – is formed.

Once more, in other words, Steele is said to be indebted to Swift for his `` wit '' ; ;

Once the scene is set, Trevelyan skilfully builds up the tense story until it reaches its climax in the dramatic victory of Marlborough and Eugene of Savoy at Blenheim.

Once he has been identified, however, a new melody is used to accompany his narrative, a bleak motif with barren octaves creating a rather ancient effect:

Once again what has happened is an all-consuming confabulation of the incidentals, the accidents of painting.

Once the grains are ground, vitamin E begins to deteriorate immediately and half of it is lost by oxidation and exposure to the air within one week.

Once more the fallacious equation is advanced to argue that since business is restricted under the anti-monopoly laws, there must be a corresponding restriction against labor unions: the law must treat everybody equally.

One of the finest soft shoe tunes ever invented, `` Once In Love With Amy '' is also, of course, one of the most tantalizingly persistent of light love lyrics to come out of American musical comedy in our era.

Miss Tamiris' `` Once Upon A Time '' is a problem piece about a man and a woman and the three `` figures '' that bother them somehow.

Once a predator has sampled one of these, it is likely to remember the colouration next time it encounters a similar animal.

Once the beams are laid across the building, it is then time to begin the placing of adobe bricks to create the roof.

Once programmed, it is able to choreograph its motions and gestures with its voice.

Once the physical therapist determines that the individual is able to safely perform parts of the program independently, it is important that the individual be prescribed and regularly engage in a supplementary home exercise program that incorporates these components to further improve long term outcomes.

Once chosen, he must request blessing: the blessing of an abbot is celebrated by the bishop in whose diocese the monastery is or, with his permission, another abbot or bishop.

Once a movement per unit time is observed, astronomers compensate for the parallax caused by the earth ’ s motion during this time and the heliocentric distance to this object is calculated.

Once the anchor is hauled up to the hawsepipe, the ring end is hoisted up to the end of a timber projecting from the bow known as the cathead.

Once the desired scope is laid out, the vessel should be gently forced astern, usually using the auxiliary motor but possibly by backing a sail.

Once again it is important to bear in mind the lack of ' neutral ' state intervention.

Once cytochrome c is released it binds with Apoptotic protease activating factor-1 ( Apaf-1 ) and ATP, which then bind to pro-caspase-9 to create a protein complex known as an apoptosome.

Once when she is, in a key scene, finally invited by the male members of the country club she gives a toast citing from the song “ With rue my heart is laden ”.

Once the mass is displaced from its equilibrium position, it experiences a net restoring force.

Once the inner city becomes a source of revenue, the powerless residents are displaced with little or no regard from the powerful.

Once the quarry faces have been cut, the stone is gently displaced hydraulically.

Once more he lifted Jess's gun from its holster, only this time he tossed it into the stall with the frightened buckskin.

Once the poetic arts are separated from the other forms, he lays down his famous definition of tragedy, which sets up standards and so lends direction to the remainder of the work.

Among the musicals, Camelot came from T. H. White's The Once And Future King, and novels were the sources of the less than momentous Tenderloin and Do Re Mi.

Once there had been big glittering rooms where Ulanys bowed and kissed the ladies' hands as they flirted from behind their fans.

Once her trembling hand, with the pen grasped tight in it, was pressed against the paper the words came sharply, smoothly, as authoritatively as they would dropping from her own lips.

Once the soldiers from the barracks had to hold the ship from blowing away while Fogg revved the engine and got the tail up.

`` Once, when the editor was just out of the hospital from a gallstone operation, Mrs. Calhoun and the mother of the bride went out to his house and fought it out beside his bed.

Once the children have been commodified, Swift ’ s rhetoric can easily turn " people into animals, then meat, and from meat, logically, into tonnage worth a price per pound ".

Once this was over, a massive development cooperation in the field of health and education brought in numerous civil personnel from Cuba.

Parsons released titles under his name ( Try Anything Once, On Air, The Time Machine, and A Valid Path ), while Woolfson made concept albums named Freudiana ( about Sigmund Freud's work on psychology ) and Poe: More Tales of Mystery and Imagination ( continuing from the Alan Parsons Project's first album about Edgar Allan Poe's literature ).

Once on course towards the Moon, the crew put the spacecraft into a rotisserie " barbecue " mode in which the craft rotated along its long axis three times per hour to ensure even heat distribution about the spacecraft from the Sun.

Once the tip penetrates the animal the upper sub head broke off from the rest of the shaft, however, since it was still connected with the braided loop it rotated the head into a horizontal position inside the animal ’ s body so that it could not get away from the hunter.

Once this condition is met, it is sufficient that local bonding at the specimen surface is capable of being overcome by the field, allowing for evaporation of an atom from the surface to which it is otherwise bonded.

Once players have mastered these basic strokes, they can hit the shuttlecock from and to any part of the court, powerfully and softly as required.

Once it has come to rest, the jack is aligned to the centre of the rink and the players take turns to roll their bowls from the mat towards the jack and thereby build up the " head ".

Once he had established himself as sole ruler of the Roman state in 30 BC, Caesar's grand-nephew and adopted son Augustus inaugurated a strategy of advancing the empire's southeastern European border to the line of the Danube from the Alps, the Dinaric Alps and Macedonia.

Once, when his younger son Leonid fell seriously ill, Zinaida extracted a promise from her husband, as they stood by the boy's sickbed, that he would end his affair with Olga Ivinskaya.

Once the proposal is accepted by both the creditors and the Court, the debtor makes the payments to the Proposal Administrator each month ( or as otherwise stipulated in their proposal ), and the general creditors are prevented from taking any further legal or collection action.

Bixby also hosted Once Upon A Classic on PBS from 1976 to 1980.

Once again, we see the imagery of the marriage: " I, John, saw the holy city, New Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband.

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