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At and atmospheric
At 265 hours and 37 minutes into the mission, at a velocity of about, Apollo 16 began atmospheric reentry.
At a pressure of 55 GPa ( roughly 540 times atmospheric pressure ) bromine converts to a metal.
At that temperature, the vapor pressure of the liquid becomes sufficient to overcome atmospheric pressure and allow bubbles of vapor to form inside the bulk of the liquid.
At higher elevations, where the atmospheric pressure is much lower, the boiling point is also lower.
At 25 ° C and atmospheric pressure, one liter of water dissolves 3. 26 g or 1. 125 L of gaseous chlorine.
At the bottom of the trench, where the plates meet, the water column above exerts a pressure of, over one thousand times the standard atmospheric pressure at sea level.
At atmospheric pressure molecular nitrogen condenses ( liquefies ) at 77 K (− 195. 79 ° C ) and freezes at 63 K (− 210. 01 ° C ) into the beta hexagonal close-packed crystal allotropic form.
At 100 ° C and atmospheric pressure, equilibrium is not reached until the air is 100 % water.
At the other end of the scale, helium does not freeze at all at normal pressure, even at temperatures very close to absolute zero ; pressures over 20 times normal atmospheric pressure are necessary.
At high latitudes ( near the Earth's poles ), they are very low, making communication difficult or impossible due to factors such as atmospheric refraction, Earth's thermal emission, line-of-sight obstructions, and signal reflections from the ground or nearby structures.
At a pressure of above atmospheric pressure, water in a pressure cooker can reach a temperature of up to.
At high elevations, the Earth's atmosphere is thinner thereby minimizing the effects of atmospheric turbulence and resulting in better astronomical " seeing ".
At night, the same receiver may pick up signals as far away as 1110 KFAB in Nebraska reliably, depending on atmospheric noise and man-made interference.
At the time of its upgrade, the storm was located in an area of higher than normal atmospheric pressure, although conditions favored further development.
At altitude, atmospheric pressure is lower than at sea level, so surfacing at the end of an altitude dive leads to a greater reduction in pressure and an increased risk of decompression sickness.
At atmospheric pressure, liquid nitrogen boils at and is a cryogenic fluid which can cause rapid freezing on contact with living tissue.
At the short wavelength end the cut-off is determined by the atmosphere ; specifically atmospheric seeing.
At the time, Canada only possessed upper atmospheric launch capabilities, and therefore Alouette 1 was sent aloft by the American National Aeronautics and Space Administration ( NASA ) from Vandenberg AFB in California.
At sea level, an ambient temperature of 70 ° F ( 21 ° C ), and under normal atmospheric conditions, the speed of sound is approximately per second ( 347 m / s ).
At present, the highest temperature superconducting materials are the cuprates, which have demonstrated superconductivity at atmospheric pressure at temperatures as high as-135 ° C ( 138 K ).
At 1200 UTC, Agnes reached its minimum atmospheric pressure of, as reported by a reconnaissance aircraft.
At liquid level in the top reservoir, the liquid is under atmospheric pressure, and as one goes up the siphon, the hydrostatic pressure decreases ( under vertical pressure variation ), since the weight of atmospheric pressure pushing the water up is counterbalanced by the column of water in the siphon pushing down ( until one reaches the maximum height of a barometer / siphon, at which point the liquid cannot be pushed higher ) – the hydrostatic pressure at the top of the tube is then lower than atmospheric pressure by an amount proportional to the height of the tube.

At and pressure
At the same time, there was increased reason for a quick meeting lest the Soviet leader, as a result of those episodes, come to a dangerously erroneous conclusion about the West's ability and determination to resist Communist pressure.
At room temperature and pressure, barium has a body-centered cubic structure, with a barium – barium distance of 503 picometers, expanding with heating at a rate of approximately 1. 8 /° C.
At standard temperature and pressure, two chlorine atoms form the diatomic molecule Cl < sub > 2 </ sub >.
At low pressure, there was enough space between the gas atoms that the ions could accelerate to high enough speeds that when they struck another atom they knocked electrons off of it, creating more positive ions and free electrons in a chain reaction.
At these very high vacuums the effect of photon radiation pressure on the vanes can be observed in very sensitive apparatus ( see Nichols radiometer ) but this is insufficient to cause rotation.
At boiling point, all volatile components boil, but for a component, its percentage in the vapor is the same as its percentage of the total vapor pressure.
At the moment, it is not known how the material is produced or if it remains stable without applied pressure, however, there is conjecture that it is possible to produce a new stable state of matter by compressing ultracold deuterium in a Rydberg state.
" Interviewed for the same broadcast, Mullen said the policy would continue to be implemented until the law was repealed, and that his advice was to " move in a measured way ... At a time when we're fighting two conflicts there is a great deal of pressure on our forces and their families.
At standard temperature, pressure and concentration conditions, the cell's emf ( measured by a multimeter ) is 0. 34 V. By definition, the electrode potential for the SHE is zero.
At the 2010 World Cup itself England drew their opening two games leading to questions about the team's spirit, tactics and ability to handle pressure.
At the same time, Relena formally dissolves the Sanc Kingdom due to the tremendous pressure from Romefeller.
At standard temperature and pressure, hydrogen is a colorless, odorless, tasteless, non-toxic, nonmetallic, highly combustible diatomic gas with the molecular formula H < sub > 2 </ sub >.
At those times when John was preparing for campaigns in Normandy, for example, huge quantities of silver had to be withdrawn from the economy and stored for months, which unintentionally resulted in periods during which silver coins were simply hard to come by, commercial credit difficult to acquire and deflationary pressure placed on the economy.
Lithium is superconductive below 400 μK at standard pressure and at higher temperatures ( more than 9 K ) at very high pressures (> 20 GPa ) At temperatures below 70 K, lithium, like sodium, undergoes diffusionless phase change transformations.
At this pressure the density of water is increased by 4. 96 %, making ninety-five litres of water under the pressure of the Challenger Deep contain the same mass as a hundred litres at the surface.
At such depths, water pressure is extreme and there is no sunlight, but some life still exists.

At and mean
At the top of Figure 5, for example, the Onset range and Completion range lines for the chosen growth center have been drawn for girls according to their mean and standard deviation values in Table 1.
At the present time we do not know by what biochemical mechanism TSH acts on the thyroid, but for bio-assay of the hormone there are a number of properties by which its activity may be estimated, including release of iodine from the thyroid, increase in thyroid weight, increase in mean height of the follicular cells and increase in the thyroidal uptake of Af.
At the rate of need indicated in the early weeks of the month, this could mean a shortage of as high as $17,000.
At pH values greater than the pKa of the carboxylic acid group ( mean for the 20 common amino acids is about 2. 2, see the table of amino acid structures above ), the negative carboxylate ion predominates.
At pH values lower than the pKa of the α-ammonium group ( mean for the 20 common α-amino acids is about 9. 4 ), the nitrogen is predominantly protonated as a positively charged α-ammonium group.
At this stage we assume that the medium is at rest which implies that the mean velocity is zero, i. e..
At the same time, however, he can use this term to mean the glorious future destiny of a truly comprehensive " Israel ".
At maturity level 5, processes are concerned with addressing statistical common causes of process variation and changing the process ( for example, to shift the mean of the process performance ) to improve process performance.
At our trading houses, too, we mean to sell so low as merely to repay us cost and charges, so as neither to lessen or enlarge our capital.
At each junction, installation of a new monarch tended to mean a break-up of the union for a while.
At its head, the Madeira on its own is still one of the largest rivers of the world, with a mean inter-annual discharge of, i. e. / yr, approximately half the discharge of the Congo River.
At one point, Peckinpah's mean streak and abusiveness towards the actors so enraged Heston that the normally even-tempered star threatened to run the director through with his cavalry saber if he did not show more courtesy to the cast.
“ Would you be willing ," Mann wrote, " to think through with me how the work-I mean Leverkuhn ’ s work-might look ; how you would do it if you were in league with the Devil ?” At the end of October 1949, Adorno left America for Europe just as The Authoritarian Personality was being published.
At the denotational level, the term refers to situations where a single entity can be seen to mean more than one mathematical object.
At present, diversions of water mean that the lakes are often largely dry land.
At a simple level, Word could encrypt all your documents using keys that only Microsoft products have access to ; this would mean that you could only read them using Microsoft products, not with any competing word processor.
At low temperatures (< 10 K ) the anharmonic interaction does not influence the mean free path and therefore, the thermal resistivity is determined only from processes for which q-conservation does not hold.
At high temperatures ( T > Θ ) the mean free path and therefore λ < sub > L </ sub > has a temperature dependence T < sup >− 1 </ sup >, to which one arrives from formula by making the following approximation < math >
It later came to mean any substantial railway station building ( a different Russian word, stantsiya, is used for minor stations ). The word " voksal " ( воксал ) had been known in the Russian language with the meaning of " amusement park " long before the 1840s and may be found, e. g., in the poetry of Aleksandr Pushkin: ( To Natalie ( 1813 ): " At fêtes and in voksals, / I've been flitting like a gentle Zephyrus "
At the end of 1954, in England and Wales, there were 1, 069 men in prison for homosexuality, with a mean age of 37.
At some point, chocolates came to mean any chocolate-covered candies, whether nuts, creams ( fondant ), caramel candies, or others.
This would mean a given episode could contain everything from SCTV news broadcasts to sitcoms, dramas, talk shows, kids shows, and / or game shows: everything from a soap opera called " The Days of the Week " (" Monday ... Tuesday ... Wednesday ... these are ... the days of the week "), to game shows like " Shoot At The Stars " in which celebrities are literally shot at like targets in a shooting gallery, to full blown movie spoofs like " Play it Again, Bob " in which Woody Allen ( Rick Moranis ) tries to get Bob Hope ( Dave Thomas ) to star in his next film.
At Metacritic, which assigns a weighted mean rating out of 100 to reviews from mainstream critics, the film received an average score of 73, based on 18 reviews, which indicates " Generally favorable reviews ".
At mean annual soil surface temperatures below the influence of aspect can never be sufficient to thaw permafrost and a zone of continuous permafrost ( abbreviated to CPZ ) forms.

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