Once there, a series of chemical reactions ( the Sabatier reaction coupled with electrolysis ) would be used to combine a small amount of hydrogen ( 8 tons ) carried by the Earth Return Vehicle with the carbon dioxide of the Martian atmosphere to create up to 112 tonnes of methane and oxygen.

Once the electron is displaced from the photosystem, the electron is passed down the electron acceptor molecules and returns to photosystem I, from where it was emitted, hence the name cyclic reaction.

Once again, the neutron energies measured were not consistent with those of neutrons produced by a d-d fusion reaction.

Once the potentially useful microsatellites are determined ( removing non-useful ones such as those with random inserts within the repeat region ), the flanking sequences can be used to design oligonucleotide primers which will amplify the specific microsatellite repeat in a PCR reaction.

Once the acid is more than 95 % deprotonated the pH rises rapidly because most of the added akali is consumed in the neutralization reaction.

Once the limerent reaction has initiated, one of three varieties of bonds may form, defined over a set duration of time, in relation to the experience or non-experience of limerence.

Once more ( as with Live and Let Die and Dr. No ) it is Bond the British agent who has to sort out what turns out to be an American problem and this can be seen as Fleming's reaction to the lack of US support over the Suez Crisis in 1956 as well as Bond's warning to Goldfinger not to underestimate the English.

Once the chain reaction started in the plutonium, the momentum of the implosion had to be reversed before expansion could stop the fission.

Once the reaction is complete, the plate is removed from the silver nitrate solution and exposed in a camera while still wet.

Once the Axis commanders had divined the Allies ' intentions, the Allies began to see some reaction from the Axis field divisions waiting inland, the Hermann Göring and Livorno Divisions.

Once this reaction is complete, the furnace can be returned to service.

Once the temperature reaches 100 million – 200 million kelvins and helium fusion begins using the triple-alpha process, the temperature rapidly increases, further raising the helium fusion rate and, because degenerate matter is a good conductor of heat, widening the reaction region.

Once these fats or oils are filtered from their hydrocarbons and then combined with alcohol like methanol, biodiesel is brought to life from this chemical reaction.

Once the result is announced, her reaction will depend on her overall status.

Once a fire has started, the resulting exothermic chain reaction sustains the fire and allows it to continue until or unless at least one of the elements of the fire is blocked.

Once this occurs, the sperm is capable of binding with the zona pellucida, and the acrosome reaction can occur.

After a couple of years at the University of Colorado, Reed moved to California after realizing he had some talent as a musician, and recorded " Once Again " for Imperial Records as a one-off single to see if reaction to it would justify a full contract.

Once the pilot maneuvers the aircraft so that the target and pipper are superimposed, he or she fires the weapon, or on some aircraft the weapon will fire automatically at this point, in order to overcome the reaction delay of the pilot.

Once a pattern has been indexed, this characterizes the reaction product and identifies it as a new solid phase.

Moreover, unlike in North America, the song failed to get enough attention to establish itself as a hit song in even their markets at the time of its release, because another songs from Houston's debut album ―" All at Once " or " Saving All My Love for You "― got a better reaction than the song from the public and the media, particularly in Europe, and the early promotion for the album was also stratagemically focused on those of songs.

Once ruptured, the exposed pigments cause a foreign body reaction and inflammation.

Once all N-bromosuccinimide ( which is denser than the solvent ) has been converted to succinimide ( which floats on top ) the reaction has finished.

Once there, he decided to first call Ursicinus, Gallus ’ magister equitum, to Mediolanum for reasons that remain unclear.

Once a call is set up, there is a simple 64 kbit / s synchronous bidirectional data channel ( actually implemented as two simplex channels, one in each direction ) between the end parties, lasting until the call is terminated.

Once the target station has heard the call and responded, a bell or other signalling device will notify both operators that a link has been established.

Once they had received the phone call from the record company, the band celebrated the news with " cheers, shouting and crying ".

Once the stadium was completed Giuliani reneged on the Sportsplex deal, and The Mets decided to call the minor league team the Brooklyn Cyclones and sold the naming rights to the stadium to Keyspan Energy.

Once the plane reached, he announced " V1 ", indicating that they had reached the velocity at which it was no longer safe to abort the take off, and Captain Rayment listened out for the call of " V2 " (), the minimum speed required to get the plane off the ground.

Once a clean, smooth geopotential field has been constructed matching the known GRS80 reference ellipsoid with an equipotential surface ( we call such a field a normal potential ) we can subtract it from the true ( measured ) potential of the real Earth.

Once the show is open to the public, the lighting designer will often stay and watch several performances of the show, making notes each night and making desired changes the next day during notes call.

Once they had retraced their steps, Robinson's brigade, led by eight companies of light infantry soon drove the defenders back, and the British had crossed the ford and were preparing to advance, when the orders arrived from Prévost to call off the attack.

Once more the heroic call is coming to our youth.

Once he had set the call to go through dozens of countries, he dialed the number of the public phone next to him.

Once this number is defined, the home network forwards the incoming call to the temporary phone number, which terminates at the host network and is forwarded to the cell phone.

Once the first draft of a script is finished, the writers and executive producers call in the actors to do a table read.

Once a call of the house has been ordered, " no motion is in order, even by unanimous consent, except motions relating to the call.

Once, when Eckstine came across a disheveled Davis in the depths of his heroin excess, his remark " Looking sharp, Miles " served as a wake-up call for Davis, who promptly returned to his father's farm in the winter of 1953 and finally kicked the habit.

Once a specific sensitivity is undefined, it may call the entire study into question.

Once Khomeini, as a respected member of the clergy, started to openly oppose the Shah and call for his overthrow, people of all different professions and economic status began to see him as a figure to rally behind.

Once the call has been administratively processed it is presented to the individual called.

Once trump has been decided, the player who won the bid may " call " for a card.

' Once we have developed our will, at least to some degree, we pass to the next stage which is called " having a will "', and thereafter ' in psychosynthesis we call the fourth and final stage of the evolution of the will in the individual " being will "'-which then ' relates to the " I " or self ... draws energy from the transpersonal self '.

Once the LEC determines to which IXC to send the call, it is sent to the IXCs point of presence ( POP ).

Once the final determination of where the call is supposed to go is completed, the call is then routed to the subscriber's trunk lines.