Sentences with phrase «pressure at»

By applying pressure at the nanoscale with an indenter to two layers of graphene, each one - atom thick, CUNY researchers transformed the honeycombed graphene into a diamond - like material at room temperature.

Impact of ice melt on storms Freshwater injection onto the North Atlantic and Southern Oceans causes increase of sea level pressure at middle latitudes and decrease at polar latitudes.

Now, in this we're very focused not on intraocular pressure at all but on the back of the eye, on the retinal ganglion cells.

Freshwater injection into the North Atlantic and Southern oceans increases sea level pressure at middle latitudes and decreases it at polar latitudes (Figs. 20, S22), but the impact is different in the North Atlantic than in the Southern Ocean.

At 1 bar, the pressure at sea level, NiDOBDC was able to take up significant amounts of xenon and release all of it when the conditions were right.

Likewise an increase in energy production would cause the star to expand, lowering the pressure at the core.

Ice takes on many different forms depending on the pressure at which it developed.

One was the brightest storm ever seen on Uranus at 2.2 microns, a wavelength that senses clouds just below the tropopause, where the pressure ranges from about 300 to 500 mbar, or half the pressure at Earth's surface.

The pressure at the center of a comet nucleus 3 miles in diameter is about what you would feel under a blanket here on Earth.

While the large atmospheric pressure at the surface and the high altitude of the Venusian cloud layer appears to exclude the possibility of cloud - to - ground lightning (Gurnett et al. 2001; Aplin 2006), several authors have suggested that lightning discharges above, between or within clouds may occur (Borucki 1982; Russell & Scarf 1990; Gurnett et al. 2001).

For example, geophysicists studying the intense density and pressure at the core of the Earth will be able to use the NIF lasers to create laboratory conditions that produce similar extreme states of matter.

Codon - substitution models for heterogeneous selection pressure at amino acid sites Yang, Z., R. Nielsen, N. Goldman, and A. K. Pedersen.

Big science is under big pressure at the National Institutes of Health (NIH).

Kieran Daly, at Air Transport Intelligence magazine says the pilots would have had just seconds to react to a rapid loss of pressure at such high altitude.

Modeling changes in the observed harmonic frequencies indicates that the spectral characteristics of seismic data can provide important information about hydraulic fracture geometry and fluid pressure at depth, leading to important insights into subglacial hydrologic processes.

The atmosphere is very thin, however, and the atmospheric pressure at the surface of Mars is only about 0.6 percent of Earth's (101,000 pascals).

The pressure at a column of water is higher than at the bottom of a column of ice, and at the melting point the ice has essentially zero strength.

For these, we need to apply pressure at a particular location.

At a pressure of circa 2.5 Giga - Pascal (GPa), more than 25,000 times the average pressure at sea level, and a temperature of 200 degrees Celsius, the super-hydrated phase was observed.

When they factored in a constant level of CO2, they discovered a surprising development: The change required a lower overall atmospheric pressure — about one - sixth today's pressure at sea level.

Without this slick layer, a human applying no pressure at all would take 500 days to void their bowels, Yang says.

Patients with uncontrolled high blood pressure treated with renal denervation had low rates of adverse events and significant lowering of blood pressure at six months, according to a registry - based study presented at the American College of Cardiology's 63rd Annual Scientific Session.

Pressure at that depth keeps the gas dissolved and prevents it from leaking into the atmosphere.

For example, one 1965 study by researchers at the Brooks Air Force Base in Texas showed that dogs exposed to near vacuum — one three - hundred - eightieth of atmospheric pressure at sea level — for up to 90 seconds always survived.

In other words, more salt may lead to higher blood pressure at an earlier age.

This shift saves more oxygen for the brain and heart, but to a degree it also seems to fortify the torso against the crushing effects of water pressure at great depth.

Water pressure at those depths is more than 200 times that of the atmosphere at the surface, and no one knew what all the heat, gas, and salt below the seafloor might do to the drilling equipment.

If the sound is loud enough and at the right frequency, the pressure at the trough of the wave will be so low that the fluid will boil, producing microscopic bubbles.

The children receiving autoinflation were more likely than those in the control group to have normal middle - ear pressure at both 1 month (47.3 % and 35.6 %, respectively) and 3 months (49.6 % and 38.3 %, respectively) and have fewer days with symptoms.

Mr van der Zanden used a range of instruments to measure the concentration and speed of sand particles in the water, he also examined changes in the underlying sand layer, and measured the water pressure at various points in the wave flume.

A person meets the criteria of the metabolic syndrome if they have three or more of the following metabolic abnormalities: blood pressure at 130/85 mm Hg or above; fasting glucose of 100 mg / dL or higher; waist circumference 40 inches or more in men and 35 inches in women; triglyceride levels at 150 mg / dL or more, and high - density lipoprotein cholesterol (HDL - C) greater than 40 mg / dL in men and 50 in women.

And the efficiency with which a field generates electricity can be improved in the future by moving to higher temperature operation, he adds; the current design employs steam at 440 degrees Celsius and 63 kilograms per square centimeter of pressure at peak capacity.

This transient atmosphere is still extremely tenuous, with a maximum pressure at perihelion, when the comet is closest to the Sun, 100,000 times lower than on Earth.

The physicists didn't measure the pressure at which the superionic phase first formed.

«All explosives are notorious for having a very low vapor pressure at room temperature.»

And it could also improve our take on evolutionary dynamics, in systems that apparently experience selection pressure at both the individual and group levels.

Parkes has found microbes in deep sediments that grow best at precisely the pressure at which he found them.

Lowest atmospheric pressure (lower is stronger) Wilma: 882 millibars Gilbert: 888 Katrina: 902 Typical pressure at sea level: 1013

Because Mars» atmospheric pressure at ground level is comparable to that of Earth's atmosphere at 100,000 feet — a mere 1.4 percent of Earth's air pressure at sea level — an aircraft that can fly in such conditions will help engineers learn how to design aircraft to roam Martian skies.

The procedure requires using a catheter inserted through the nose to measure pressure at several points inside the stomach.

When the researchers placed the material inside a gas chamber and cranked up the air pressure from one bar (about the atmospheric pressure at sea level) to five bars, the cube's volume increased by about 3 percent.

Angiotensin II significantly improved hypotension (low blood pressure)-- increasing mean arterial pressure at 3 hours — compared with placebo; nearly 70 percent of angiotensin II - treated patients (114 of 163) saw improved blood pressure compared with 23 percent of the placebo group (37 of 158 patients).

But increasing fluid pressure at depth reduces the friction along the fault, sometimes triggering an earthquake.

The team's original hope was that it would be possible to simply change the temperature or oxygen pressure at which the ITO film was deposited to achieve the desired optoelectronic and surface roughness properties.

The lower pressure at Ceres» surface would have caused the fluid to boil off as a vapor.

If the water pressure at the plate interface zone becomes as high as the pressure of the overlying rock column, the strength of the rocks at the plate interface becomes practically zero - an effect akin to aquaplaning will initiate eventually triggering an earthquake.

Pressure is proportional to the square of the velocity, so the air pressure at top is four times as high as near the ground.

For example, «if you have a low - pressure area aloft, then you will tend to produce low pressure at the surface ahead of it,» Weickmann explains.

Among patients with hypertension at high risk of cardiovascular disease, a program that consisted of patients measuring their blood pressure and adjusting their antihypertensive medication accordingly resulted in lower systolic blood pressure at 12 months compared to patients who received usual care, according to a study in the August 27 issue of JAMA.

Shrugging off the considerable pressure at a depth of 1,700 feet, Jason watched lava slowly ooze out of the vent and explored the unique ecosystem that surrounded it.