Sentences with phrase «decay rates»

I don't think we can conclude that the SLR timescales need follow the differential shown by the Arctic ice — but there's a lot of uncertainty about the decay rates we can expect in Greenland and West Antarctica.

Low oxygen conditions slow decay rates, resulting in much of the carbon accumulating in the soil.

Moreover, within the past hundred years before 1950 CE, radiocarbon dates are not very precise chronometers, because changes in radiocarbon production rate have by coincidence roughly compensated for fixed decay rates.

Only if we burn 10 times more carbon than already done, then the longer term decay rates come into play.

-- an extra througput by whatever cause, would increase the decay rates of e.g. the 14C bomb spike and influence a lot of other indications of the turnover.

The other point is very slow partial radiative decay rates of CO2 molecules were determined by experiment.

The IPCC uses several time constants: the constant for the exchange rate of ~ 8 years, and several time constants for the decay rates in different compartiments, ranging from less than a year (ocean surface) to decades (deep oceans) to centuries and millennia (rock weathering, sedimentation).

This is the most recent of 2 decades worth of work trying to identify periodic filters and decay rates that can smooth the observed trend and get a relatively straightforward function of CO2 as a result.

The CO2 collisional vs. radiative decay rates are about 15 microseconds and 0.43 seconds, respectively, at 220 K and 1 atm., for a ratio of about 29,000 (Curtis & Goody (1956) Thermal Radiation in the Upper Atmosphere Proc.

I doubt that anyone can do this and conclude that CO2 decay rates can be characterized by a single half life, since this is incompatible with the physics underlying the multiple equilibrations that occur at different rates.

One panel displays all your resources, and indicates their growth or decay rates.

The overstatement of new traditional author earnings may arise from differences in the decay rates between the BookBub promotion and Amazon's sales rank.

The idea of scientifically dating the shroud had first been proposed in the 1960s, but permission had been Radiometric dating is a technique used to date materials using known decay rates.

Climate records from a Japanese lake are set to improve the accuracy of the dating technique, which could help to shed Radiometric dating is a technique used to date materials using known decay rates.

It is nonmetallic and tetravalent — making four electrons Radiometric dating is a technique used to date materials using known decay rates.

Two major dating methods applied to artifacts and fossils are stratagraphic dating (based upon the particular layer of rock of sediment in which the object is found) or radiometric dating (which is based on the decay rates of certain radioactive isotopes).

Radiometric dating is a technique used to date materials using known decay rates.

Turning greenhouse gas into stone: First carbon - negative power plant opens Radiometric dating is a technique used to date materials using known decay rates.

Ribonuclease II preserves chloroplast RNA homeostasis by increasing mRNA decay rates, and cooperates with polynucleotide phosphorylase in 3 «end maturation

Using the known decay rates of various radioactive isotopes, he investigates the chronology of early processes on small planetary objects and studies the chemical and physical aspects of old and young crust - forming processes on Earth.

[See Figure 206 and then read, «When, Where, How, and Why Did Radioactive Decay Rates Accelerate?»

Beta decay rates can increase dramatically when atoms are stripped of all their electrons.

To see why it was explosive, see «When, Where, How, and Why Did Radioactive Decay Rates Accelerate?»

Decay rates of human mRNAs: correlation with functional characteristics and sequence attributes.

I read your article on apparent seasonal changes in radioactive decay rates (17 November, p 42).

As the vibrational amplitude decreases, the rate suddenly changes and the modes become decoupled, resulting in comparatively low decay rates, thus in very giant quality factors exceeding 1 million.

Krypton dating is much like the more - heralded carbon - 14 dating technique that measures the decay of a radioactive isotope — which has constant and well - known decay rates — and compares it to a stable isotope.

Now he had an important additional piece of information: Proximity to the sun seemed to influence radioactivity, and violent activity on the sun could also increase or decrease decay rates.

No known process can explain how they could mess around with radioactive decay rates.

In the summer of 2001, the BaBar researchers, after sorting through some 30 million B and B - bar decays, announced that they had found evidence of a difference between the decay rates of matter and antimatter.

«We developed three independent age - dating techniques that are based on the different decay rates of radium, thorium and lead isotopes.

Analyses of thin mineral deposits partly covering painted cave areas provided minimum age estimates for the art, based on known decay rates of radioactive uranium in the rock.

Some isotopes that existed when the Solar System formed are radioactive and have decay rates that caused them to become extinct within tens to hundreds of million years.

Yes, there is error in radioactive dating and variability in decay rates.

If cosmic rays affected decay rates, the power generated would be different from expectations.

In fact, decay rates have been increased in the laboratory by a factor of a billion.

He stands on the shoulders of giants to invent (not discover, big diff) what is essentially a doo dad that depends on radioactive decay rates, particle physics etc...

Yet, research has shown that decay rates can change according to the chemical environment of the material being tested.

Sedimentary layers, stalact.ites, water erosion over time, ice core data, tree rings, isotope decay rates.

While it's certain that short - term volatility exchange traded products (ETPs) like VXX, TVIX, and UVXY are doomed to march towards zero, their decay rates are not consistent.

Carbon 14 assumptions, e.g. rate of C14 generation in upper atmosphere, have absolutely nothing to do with the lead - lead decay rate.

The overall decay rate would still be, on average, constant.

If exposure to elements accelerates the decay rate dramatically, wouldn't that mean that things are a lot OLDER than what we calculate now?

The decay rate and presence of carbon is accurate ONLY IF the item (ie fossil, rock, etc) HAS NOT been exposed to any elements (rain, wind, etc).

Any exposure to elements accelerates the decay rate dramastically.

Animal cells take up carbon - 14 when they are formed, and because the decay rate of carbon - 14 is known, the time of death can be deduced from the amount of isotope left.

The decay rate of their sample actually started to drop 40 hours before the flare.

The changes in radioactive decay rate tracked that pattern, rising and falling on cue over the course of the year.

A sharp drop in the radioactive decay rate could alert the world to another Carrington Event.

«From the measured decay rate, we could also determine the effective neutrino mass.»