Just one
square centimeter of coral tissue typically harbors a million individual symbionts and on average those symbionts can double every 7 days.
The full title includes the dimensions as well, because
every square centimeter of surface area matters.
The deposited particle mass from 10 to 350 nanograms (a billionth of a gram) per
square centimeter of cell surface corresponds to an airway daily dose of slightly polluted, rural air with 20 micrograms (a millionth of a gram) PM per cubic meter of air through to very high air pollution in a megacity (1000 micrograms PM per cubic meter of air).
Sixty - five billion of them pass through
every square centimeter of Earth's surface each second, and nearly all exit the other side without making their presence known.
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.
Flow batteries can produce between 0.5 and 3 volts, and that in turn means IBM can use the technology today to supply 1 watt of power for
every square centimeter of a computer's circuit board.
This catalyst has demonstrated specific activity at 10 milliamps per
square centimeter of oxide catalyst (OER current normalized to catalyst surface area), with only 270 to 290 millivolts of overpotential for 30 hours of continuous testing in acidic electrolyte.
During the disinfection process, water will pass through the 56 UV units, each of which contains 144 low - pressure, high - output ultraviolet lamps that produce 40 millijoules per
square centimeter of light that together can treat an average of 1.3 billion gallons (4.9 billion liters) of water daily (pdf).
The team crushed a sample containing tiny crystals of osmium and liquid argon between the jeweled jaws of a diamond anvil, which exerts several hundred tons per
square centimeter of pressure.
During each burst of oxygen, an estimated 26,000 ions per second passed through
each square centimeter of sensor, the researchers say.
And as the equipment descends, everything will pass a bank of ultraviolet lights that bathes it with 40,000 microwatts per
square centimeter of cell - killing energy.
Every square centimeter of it!
And all this must happen on 1.5
square centimeters of polymer that's transparent, flexible, nonirritating, fluid - friendly, and free of all the toxic materials normally used in glowing microelectronic components.
The insect can chew through 10
square centimeters of leaf a day, and left unchecked it will strip a plant bare.
The researchers, working with a biological ink that contains both human plasma as well as material extracts taken from skin biopsies, were able to print about 100
square centimeters of human skin in the span of about half an hour.
Not exact matches
It is important to understand that using your microwave oven will expose you to an energy density
of milliwatts per
square centimeter (the standard energy unit measurement in the U.S.).
It's pumped 300 meters or so to the injection site, where its pressure is increased to more than 140 kilograms per
square centimeter before being pumped through one
of two wellheads.
The observed transient behavior displays a notable «structural isosbestic» point and a threshold effect for the dependence
of c - axis expansion (Δc) on fluence (F), with Δc / F = 0.02 angstrom / (millijoule per
square centimeter).
The density
of defects in the best gallium nitride crystals, at 1.010 dislocations per
square centimeter, was ten million times higher than what was believed necessary for commercial success, especially in a laser.
Power - conversion efficiencies
of more than 6 % were achieved at illuminations
of 200 milliwatts per
square centimeter.
Regardless
of the functional additives, experiments showed that once a sorbent material achieved a surface area
of 2,800
square meters per gram and a pore volume
of 1.35 cubic
centimeters per gram, neither more surface area nor larger pores made it more efficient at capturing carbon dioxide.
The researchers performed hundreds
of indentation tests on tiny olivine crystals less than a
centimeter square and found that the olivine crystal became weaker as the size
of the diamond tip increased.
Trinity College's Coleman says that the solution - based exfoliation methods, which to date produce graphene up to several tens
of microns wide, are probably best suited for «middle - size industrial quantities, whereas the Intels
of the world will likely be more interested in growing huge areas
of graphene using CVD - type processes,» which so far can make samples up to a few
square centimeters.
Affix a two -
centimeter -
square patch
of thick gray cardboard (about the same color as the TV snow) 12
centimeters or so away from the white cardboard.
The combined material, called a photoanode, showed excellent stability while reaching a current density
of 10 milliamps per
square centimeter, the researchers reported.
At an applied potential
of 0.3 volt, chemically modified n - type TiO2 performs water splitting with a total conversion efficiency
of 11 % and a maximum photoconversion efficiency
of 8.35 % when illuminated at 40 milliwatts per
square centimeter.
In Idaho, for example, a former lab is deemed «clean» when there is less than one tenth
of a microgram
of methamphetamine per
square centimeter in the room where meth was cooked.
«A relatively low cathode current density, in the range
of miliamperes per
square centimeter, can correspond to a pressure
of gaseous hydrogen in the range
of a few tens
of thousands
of atmospheres,» explains Dr Arkadiusz Gajek (IPC PAS).
An easy - to - measure current density
of one microampere per
square centimeter corresponds a stream
of about six trillion (6 × 10 ^ 12) single hydrogen atoms per second per
square centimeter.
When the researchers placed the lattice in a vacuum heated to 1,250 degrees Celsius, they found that it converted radiation with an efficiency
of 34 percent and emitted about 14 watts per
square centimeter.
Scientists estimate that Stardust collected 45
of these micron - sized interstellar dust particles using an aerogel collector 1,000
square centimeters in size.
Boyd reduced — but did not stop — the movement
of a small area
of Penner's heart, about a
centimeter square, with a stabilizer, a horseshoe - shaped brace inserted through a fourth small incision.
The cell was 1
square centimeter in size, consisting
of a 200 - micron - thick silicon layer topped with a 1 - micron - thick perovskite layer.
In September 2015, the team took a 4 -
square -
centimeter patch
of unblistered skin from the boy's groin and grew skin stem cells in the lab from that sample.
In our experiments, we found that when the plating and stripping current density is raised above ~ 9 milliamperes per
square centimeter, there is substantial self - heating
of the dendrites, which triggers extensive surface migration
of Li.
After painstakingly removing multiple sources
of background signals, the team was left with a neutrino flux
of 66 billion per
square centimeter per second, close to the standard solar model prediction
of 60 billion, they report online today in Nature.
We have created sample sizes
of a few
square centimeters, and since we think that our method is scalable, we believe that we can grow sheets that are up to several
square inches or larger, paving the way to realistic large - scale applications.»
The films display a room - temperature spontaneous polarization (50 to 60 microcoulombs per
square centimeter) almost an order
of magnitude higher than that
of the bulk (6.1 microcoulombs per
square centimeter).
Current non-invasive techniques can't detect epileptic areas
of the brain smaller than approximately eight to 10
square centimeters, so many early - stage epilepsy patients often go undiagnosed and untreated.
The rectangular chip — smaller than a few
square centimeters and using as little as a few milliliters
of blood — is made
of the polymer PDMS.
To counter the osmotic pressure that arises between the solutions and force water back through the membrane, desalinization plants must utilize high pressures
of 7,000 to 8,300 kilopascals (71 to 86.5 kilogram - force per
square centimeter or 1,000 to 1,200 pounds per
square inch), he notes.
«With this new biomarker, we should be able to detect very small regions
of epileptic activity — smaller than a single
square centimeter — and we do it noninvasively,» Loeb said.
The 65,000 -
square - foot building also sits atop 36 hydraulic columns, which can raise the entire structure in 25 -
centimeter increments, extending the life
of the station.
The layer
of ionic liquid allowed the researchers to inject the semiconductor with electrons at a density
of a hundred trillion to a quadrillion per
square centimeter.
The test battery's optimal performance was between 40 and 50 milliAmperes per
square centimeter, where about 70 percent
of the battery's original voltage was retained.
A 2010 analysis by Australian researchers looked at the actual number
of bacteria per
square centimeter on various banknotes and found that a U.S. note contains 10 such microbes per
square centimeter (higher than what Australia and New Zealand had on their currency.)
The sun, on the other hand, blasts the top
of the atmosphere with an average
of 135,100 milliwatts per
square centimeter.
The maximum energy that Phobos — Grunt could have felt from HAARP would have equaled a power density
of 1.03 milliwatts per
square centimeter, according to Selcher.
The ability to trap live organisms without harm is surprising, considering that the typical laser intensity at the focal point
of the optical tweezers is about 10 million watts per
square centimeter.
The only thing standing between the escape
of nuclear steam and a possible chain
of events leading to a meltdown was an internal liner
of stainless steel just three sixteenths
of an inch (0.48
centimeter) thick that had slowly bent out about an eighth
of an inch (0.32
centimeter) into the cavity due to the constant 2,200 pound - per —
square - inch (155 - kilogram - per -
square -
centimeter) pressure.